Scope of the invention
[0001] The present invention relates to the field of air treatment units.
[0002] In particular, the invention refers to an innovative system in said units that considerably
reduces heat dispersion, thereby improving energy saving, in particular in the areas
of coupling between two sections or within the same section, for example in correspondence
with the joint between two panels, one of which, for example, fixed with a dividing
function or rotatable with a door function.
Overview of the prior art
[0003] The air treatment unit, better known by the acronym ATU, is an item of equipment
for the treatment of air in closed environments. It is a machine with modular sections,
each of which intended for a different function.
[0004] For large air conditioning systems, the definition of air treatment system, or ATS,
is adopted, whether the air is solely external air or mixed.
[0005] Their purpose is to take the air and treat it depending on thermo-hygrometric needs.
[0006] The parameters involved in air treatment are temperature, humidity, speed and purity.
[0007] For each of these parameters there is a part or a component of the machine capable
of controlling, adjusting and/or modifying it.
[0008] These units therefore have the main function of improving air quality, ensuring correct
replacement and control of the air conditions in work and processing environments
- with the appropriate heat recovery systems, they are also able to guarantee efficient
energy saving.
[0009] Generally in winter, the unit increases the temperature and humidity of the air,
through the succession of pre-heating, humidification and post-heating stages.
[0010] In summertime, it reduces the temperature and humidity of the air through the succession
of cooling and post-heating.
[0011] ATUs are made up of different devices, each of which plays a key role in ensuring
correct operation and consequently quality of the final product and quality of the
air.
[0012] In particular, an ATU can comprise:
- an external envelope of insulated and soundproofed sheet metal panels (for example,
through rock wool or polyurethane foam) fixed on structures or frames generally of
aluminum and divided into sections;
- supply and return fans;
- air flow and flow regulation dampers;
- batteries for water heating and cooling;
- batteries for post- and pre-heating and cooling with water or direct expansion (when
necessary);
- one or more filtration sections with filters of different types, for example from
bag filters to absolute filters (depending on the type of filtration required);
- a humidification section (when necessary);
- a cross-flow or other type of heat exchanger (when indicated but generally always
recommended).
[0013] Figure 1 schematically shows an ATU 100 unit according to the prior art, in order
to highlight one or more of the above-listed elements.
[0014] A technical problem related to these ATU units, or ATS, is the formation of condensation.
[0015] In fact, even in everyday applications, unfavorable weather conditions, or technical
installation rooms where high temperatures or high levels of humidity are reached
can, if the technical characteristics of the insulation from thermal bridges are poor,
give rise to the formation of condensation on the surface of the structure.
[0016] A structure's risk of condensation is definitely determined by its quality in relation
to thermal bridges (kb factor) and there are substantial differences between classes
of thermal bridge. The "thermal bridge factor" indicates how much thermal power is
dissipated through the thermal bridges present on the structure.
[0017] Thermal transmittance is, in turn, a parameter that influences energy consumption
of air treatment units and gives a measure of the additional energy costs of heating
and/or cooling necessary to compensate for the greater dispersions of the envelope,
with considerations very similar to those usually made in the civil sector to characterize
the energy class of building envelopes.
[0018] Basically and in summary, there are critical points in an ATU structure that can
cause greater heat dispersion and this therefore results in greater consumption to
compensate for these losses.
[0019] As schematized in Figure 2 and 3 of the prior art, the most critical areas of the
ATU from the thermal point of view (i.e. thermal bridge factor and thermal transmittance)
are the joining section, i.e. where the different sections of the unit join, or the
joint of two elements within the same section to be able to apply, for example, a
door or a partition panel. In this way, in the same section, on a predetermined face
of the section, it is possible to insert doors or numerous panels in succession to
close said face, for example when the use of a single panel would not be possible
given the excessively high area dimension.
[0020] Joining is made with profiles generally made of extruded aluminum and joined through
the use of polyamide bars, as immediately detailed below.
[0021] In fact, Figure 2 and Figure 2A equally show two non-joined sections that have to
be joined together, while Figure 3 shows a front view of two sections already joined
and inside which is a joining profile for two components (for example, a door panel)
and with this profile inside the section which in technical jargon is generally referred
to as "Omega" (as shown in fact in Figure 3).
[0022] By way of clarification, both Figures 2 and 2A show the separation space to indicate
the two joining faces of the two sections.
[0023] According to the prior art construction method, the production of two or more sections
involves construction of the supporting skeleton which is formed by aluminum profiles
schematically represented in Figure 2 (pr1, pr2... prn) .
[0024] The panels (P1, P2, Pn) are prepared separately in the factory by fitting an outer
metal sheet to an inner metal sheet with any material interposed between them, for
example rock wool or polyurethane.
[0025] The panels are then fixed to the skeleton through screw systems or similar.
[0026] Figure 4 shows a section along a longitudinal plane highlighted in Figure 2A in order
to show the prior art solution used to reduce dispersions in the area where one section
is coupled with the other. The numbering pr3 therefore indicates the two profiles
constituting part of the skeleton of the two sections 1 and 2, also highlighted for
clarity in Figure 2. The transverse dotted line identifies the coupling plane of the
two sections.
[0027] Figure 5 also shows the case in which a panel is added within the same section so
that it represents a view according to a cross section shown in Figure 2A.
[0028] Ultimately, therefore, Figure 4 and Figure 5 of the prior art structurally show the
two aforementioned prior art cases, namely:
Solution with two joining profiles (pr3) in Figure 4 which are currently used to place
two different sections side by side, thus limiting thermal dispersion and Figure 5
for the case of a single profile (Omega profile in the technical jargon) inside the
section, for example to introduce a door or a fixed dividing panel.
[0029] As clearly seen from Figure 4, the outer and inner metal sheet relative to the wall
(or roof, in this case) of section 1 and the outer and inner metal sheet (still a
roof in this case) relative to section 2 are indicated.
[0030] As said, the outer and inner metal sheet can have filler material inside, generally
with an acoustically insulating function, and are assembled in the factory in such
a way as to form the panels ready to be fixed to the skeleton.
[0031] The panels used, as also discussed later in the description of the invention, are
obtained from a sheet metal wall whereby with two sheets laid one on top of the other
and spaced apart and joined by a sheet that forms the side wall.
[0032] The sheet metal panels, during the construction phase, can be filled with rock wool
or expandable foam material, such as polyurethane.
[0033] The panels are therefore hollow inside in order to contain such a filler material
which can have anti-noise functions, acoustic insulation, for example.
[0034] Thickness of the sheets varies from case to case but can also be under a millimeter,
of the order of a millimeter or more than a millimeter.
[0035] Figure 4 therefore shows how the connection is made between the two sections.
[0036] In particular, for this purpose, screw systems 150 are used to fix the panels (ready
in the factory) to the profiles and the set of profiles is so structured as to minimize
dispersion.
[0037] In fact, going into more detail in Figure 4, the prior art profile system provides
for the presence side by side of the two bottom profiles pr3. A further profile 110
is coupled at the top to the bottom profile through the use of polyamide bars 120.
[0038] Each bottom profile pr3, i.e. the right one and the left one, represents a closed
section with a generally L-shaped cross-section and are coupled to each other back
to back in the sense that the two vertical legs of the L are coupled one to the other.
In this way, the panels can be placed on the shelf formed by the L with a screw fixing
as illustrated in Figure 4. In this way, as shown in Figure 4, the screw system 150
passes through the section until it intercepts the leg of the L, thereby making the
connection.
[0039] Another profile 110 is laid on top of an L-shaped profile through the polyamide bars
120.
[0040] The two sections are thus placed side by side with the aforementioned system which
tries to isolate losses as much as possible.
[0041] The two sections are connected stably to each other with known joining accessories
applied between the two panels of the two sections.
[0042] Further sealing elements 130 are also present at the screw insertion points.
[0043] Figure 5 shows, in a completely similar way, the solution for inserting a panel within
the same section.
[0044] In this case, Figure 5 shows a sectioning portion highlighted in Figure 2A (cross-section)
in order to show, for example, a coupling between a panel constituting the front face
of the section and a further panel.
[0045] Again in this case the solution refers to a system of profiles (200, 210), generally
of aluminum.
[0046] Below there is a profile 200 and above a further profile 210 coupled together through
two polyamide bars 220.
[0047] Seals 230 are then provided at the screw insertion points.
[0048] Exactly as in the case of Figure 4, the screw system 250 comprises a bushing which
is inserted through the sheets of the panel or door (outer and inner sheet) and which
ends with a threaded screw.
[0049] These types of structures attempt to minimize heat losses by reducing the passage
of heat by transmission by creating separate aluminum profiles connected with polyamide
joints which reduces the transmission of heat through the metal (generally, as already
seen, aluminum).
[0050] Then the polyamide bars inserted as shown in Figures 4 and 5 attempt to create a
thermal break.
[0051] However, the known solutions described here suffer from the following technical problems:
As can be seen from Figures 4 and 5, there is no interruption in the thermal bridge
made by the contact between the inner and outer metal sheet forming the panels. There
is therefore a structural continuity in the panel itself which creates transmission
and/or passage of heat from the inside to the outside and vice versa.
[0052] This causes a substantial heat loss.
[0053] Generally the profiles used are made of aluminum (generally extruded aluminum) and
the aluminum used for the production of the profiles has excellent thermal conductivity,
only partially limited by the use of polyamide bars.
[0054] Basically the use of the interposed polyamide bars limits dispersion, without offering
optimal limitation.
[0055] Assembling the aluminum profiles with the polyamide bars entails high production
and/or management costs.
[0056] The outer part of the aluminum profiles is in contact with the outside air. They
must therefore be protected from atmospheric/chemical agents present in the air (with
use outside the building), using anodizing or painting processes. For reasons inherent
in the thermal break profile assembly process, the internal part of the profile must
also be worked/protected, even though there is no need (not in contact with the outside).
[0057] The high contact surface of the internal part of the aluminum profiles (inherent
in the construction type of the joining section and the omega profile) increases thermal
dispersion/transmittance.
[0058] Finally, there is an extensive contact between the thermal break profiles, only partially
limited by the seal, where provided.
[0059] WO 2012/097908 A1 discloses a panel arrangement according to the preamble of claim 1. Another panel
arrangement for building air treatment units is disclosed in
WO 2016/149390 A1.
Summary of the invention
[0060] Object of the present invention is therefore to provide an innovative panel for an
air treatment unit which solves the above-mentioned technical drawbacks.
[0061] In particular, there is a need to produce a system and method of joining between
sections of a unit or between components within the same section which reduces heat
losses to a minimum, thereby optimizing energy savings.
[0062] These and other objects are achieved with the present panel for an air treatment
unit (ATU) or an air treatment system (ATS), according to claim 1.
[0063] Such a panel is shaped by walls of sheet metal.
[0064] These walls comprise an outer metal sheet (201) and an inner metal sheet (202) laid
one on top of the other at a certain distance, said outer and inner metal sheet respectively
forming the two front faces of the panel and being connected to each other by a side
wall (203, 204, 205, 206) of sheet metal in such a way as to internally define a containing
space suitable for containing a filler material, for example a foam material such
as polyurethane or a solid material such as rock wool.
[0065] According to a first aspect of the invention, the panel comprises one or more elements
(30, 330) made of thermally insulating material arranged in such a way as to generate
a discontinuity of material in the sheet forming the walls in one or more areas, where
arranged, thus generating an interruption and/or a reduction of heat transmission
along the walls of the sheet in the arranged area(s).
[0066] In this way, heat transmissions along the walls of the panel can be reduced and,
by specially arranging these thermally insulating elements, the reduction of thermal
dispersion can be optimally controlled.
[0067] Discontinuity points are thus created in the sheet forming the panel through which
there is a thermal bridge.
[0068] Said element is arranged in at least one part of the side wall of the said panel,
in such a way as to generate said discontinuity of material in the said part of the
side wall, where arranged, and thus generate said interruption and/or reduction of
heat transmission between the outer metal sheet and the inner metal sheet and/or vice
versa.
[0069] Basically, whereas in the prior art the side wall of the panel is continuous or is
in any case made up of two parts that are continuously touching (this determines passage
of heat and therefore thermal continuity), according to the solution, this thermal
continuity is interrupted by interposing a profile in insulating material that physically
creates a separation into two parts.
[0070] More particularly, the said at least part of the said side wall forms an opening
(203') which creates a separation zone between the outer metal sheet (201) and the
inner metal sheet (202);
[0071] Said element (30, 330) made of thermally insulating material is arranged in correspondence
with said opening to close said opening in such a way that said element creates said
interruption and/or reduction in the passage of heat between the outer metal sheet
and the inner one and/or vice versa.
[0072] Advantageously, said element (30, 330) can be a profile of predetermined longitudinal
length and with predetermined cross-sectional shape.
[0073] For example, advantageously, in cross-section, this profile may comprise:
- a vertical wall (35, 335);
- a horizontal wall (36, 336) connected to the vertical wall;
- a vertical seat (31; 331) made at a certain height of the vertical wall into which
the free end of the vertical flap (10') generated by said opening (203') is inserted;
- a horizontal seat (32; 332) made in a point of the horizontal wall, preferably at
its end, into which the free end of the horizontal flap (20') generated by said opening
is inserted.
[0074] , According to the invention, at least the side wall part of the panel comprising
the said thermally insulating element shapes a seat obtained at a height different
from the arrangement opening of the said element and with said seat suitable for accommodating
a profile (50) in such a way that the said profile is at least partially covered by
said panel, the profile preferably being metallic, for example extruded aluminum.
[0075] This seat is a sort of step formed by the metal sheet into which the profile is inserted.
[0076] The panel, in essence, therefore forms a sort of step in the side that is to face
the other panel in the joining of two sections, exactly as in the prior art. However,
according to the invention, the step is placed immediately below, i.e. at a different
height from that of the thermally insulating element and its dimension is such as
to be able to accommodate the metal profile.
[0077] In practice, the two panels (both the panel-panel and the door-panel) touch each
other face-to-face causing the thermally insulating element to align, one in front
of the other (see for example Figures 6 and 7).
[0078] This layout optimizes the technical effects of thermal loss reduction.
[0079] Advantageously, the said seat which accommodates the metal profile is formed by the
said horizontal flap (20') whose free end fits into the horizontal seat (32) of the
thermally insulating element and by a vertical flap (20'') which branches off from
the horizontal flap in a direction away from the outer metal sheet to connect to the
inner sheet.
[0080] Advantageously, said element made of thermally insulating material can be plastic
material, preferably polypropylene.
[0081] A coupling system is also described here for air treatment units (ATU) or air treatment
systems (ATS) and comprising:
- at least one panel according to one or more of the above-described characteristics;
- at least one profile (50, 350), preferably of metal such as of aluminum for example,
accommodated in said seat shaped by the panel in accordance with one or more of the
above-described characteristics, and in which are included connecting means (70) which
connect the said panel to the said metal profile.
[0082] Advantageously, the following can be included:
- two panels, according to one or more of the above-described characteristics, arranged
side by side in such a way that the respective thermally insulating elements are placed
side by side;
- the seats of said two side-by-side panels defining a single seat which contains said
at least one profile (35, 350) which thus remains entirely covered by said two side-by-side
panels;
- and in which said profile (50, 350) is fixed to at least one of said two panels by
means of said connecting means (70) which penetrate from the outer metal sheet to
intercept said profile.
[0083] Advantageously, said connecting means also intercept at the same time the horizontal
wall (36, 336) of said element made of thermally insulating material.
[0084] Advantageously, two metal profiles (50) are included, placed side by side in said
seat.
[0085] Advantageously, one of the two panels can shape or be a door.
[0086] In the case of a door, the connecting means (70) which connect said door to the at
least one metal profile (350) are not included.
[0087] Also described here is an air treatment unit or air treatment system comprising a
coupling system in accordance with one or more of the above-described characteristics
to create the coupling of two different sections of the unit or system or to interpose
two components in the same section.
[0088] Also described here is a method of constructing an air treatment unit or system or
parts thereof according to claim 11 and which includes:
- the construction of at least two panels intended to be placed side by side, each one
of said at least two panels being formed by sheet metal walls, said walls comprising
an outer metal sheet (201) and an inner metal sheet (202) laid one on top of the other
at a certain distance, said outer and inner metal sheet forming the two front faces
of the panel respectively and being connected to each other by a side wall (203, 204,
205, 206) of sheet metal in such a way as to internally define a containing space
suitable for containing a filler material, for example a foam material such as polyurethane
or a solid material such as rock wool
- and in which the method provides for the application of one or more elements (30,
330) made of thermally insulating material which is/are arranged in each one of the
two panels in one or more relative opening(s) obtained in the sheet forming the said
two panels, in such a way as to generate a discontinuity of metallic material thus
creating an interruption and/or reduction of the passage of heat through the metal.
[0089] In both said two panels the said opening is obtained in at least one portion of the
side wall of the two panels which are intended to face each other in such a way as
to reduce and/or interrupt the passage of heat between the outer metal sheet and the
inner one and vice versa.
[0090] For example, if the panel has a rectangular or square shape, the side wall will be
formed by four faces of the rectangle or square.
[0091] The said opening where the said thermally insulating profile is accommodated can
involve only one of the side walls, or two, three or all four, entirely or only partially.
[0092] Advantageously, the production of at least two sections side by side may be included,
and this includes:
- construction of a supporting skeleton for the first and second section, said supporting
skeleton being obtained by joining together a plurality of metal profiles, of aluminum
for example;
- construction of a plurality of panels suitable for covering said supporting skeletons
in such a way as to produce the said two sections;
- and in which the panels that have said profiles made of thermally insulating material
are at least two and one of which belongs to one section and the other belongs to
the other section and which are placed side by side in such a way that the said profiles
made of insulating material face each other.
[0093] According to the invention, these two panels are shaped in such a way as to preferably
form a step-like seat that covers the profiles (the step forms an invitation that
guides correct application of the panel on the metal profile) and therefore, the two
panels that are placed side by side bringing the two elements made of thermally insulating
material to mate or to almost mate with each other.
[0094] Advantageously, the joining of two components in the form of panels, for example
panel-panel or door-panel, within the same section constituting an air treatment unit
or air treatment system, may be included.
[0095] Advantageously, the panels having said elements made of thermally insulating material
are at least two, placed side by side within the section so that said profiles in
insulating material face each other.
[0096] At least one profile (50, 350) is applied under said two panels side by side and
equipped with the element made of insulating material in such a way as to be covered
by said two panels and in which said profile is fixed to at least one of said two
panels.
[0097] Basically, as mentioned, the two panels form a seat (i.e. a step) under the thermally
insulating element such that they can be supported and fixed to at least one metal
profile which is entirely covered by the said two panels which are touching bringing
the thermally insulating elements to mate or to almost mate, as shown for example
in Figure 6 or 7.
Brief description of the drawings
[0098] Further characteristics and advantages of this panel, assembly and method, according
to the invention, will be clarified with the description that follows of some of its
embodiments, provided as an example and in no way exhaustive, with reference to the
attached drawings, where:
- Figures 1 to 5 show solutions according to the prior art;
- Figure 6 shows a solution according to the joining of two different sections;
- Figure 6A shows an exploded view of a panel in cross-section to which the thermally
insulating element is applied in the corresponding seat provided;
- Figure 6B extrapolates only the thermally insulating joining element which is used
in accordance with the configurations of Figures 6, 7 and 7A;
- Figure 7 shows in fact a solution for the so-called "Omega" profile in which the joining
element is always present in the form of Figure 6B; in particular, Figure 7 refers
to the case of joining two panels within the same section while Figure 7A shows, still
within the same section, the joining of a panel and a door (for this purpose, in fact,
the bushing and screw system is not present to allow the door to be opened/closed).
- Figure 8 is a further variant of the invention in which the shape of the joining element
30 has been modified in accordance with that of the component 330, again thermally
insulating;
- Figure 9 and Figure 10 show the solution adopted in Figure 8 applied respectively
to the case of joining two sections or Omega profile solution while Figure 10A replaces
the case of Figure 10 with the door panel, equivalent to the case of Figure 7A;
- Figure 11 shows an exploded example of a panel according to the present invention
formed by sheet metal walls, i.e. the top wall or outer metal sheet 201, the bottom
wall or inner metal sheet 202 and the side walls (203, 204, 205, 205); the Figure
shows the opening 203', for example obtained in correspondence with at least one part
of (or the entire) longitudinal length of the side wall 203, where the element 30
is arranged to close the same, being placed between the upper and lower flaps of said
opening in such a way as to be effectively interposed between the top wall 201 and
the bottom wall 202, in order to create the thermal break between them; Figure 11
also shows an exploded view of the metal profile (50; 350) which is thus arranged,
following assembly, in the seat shaped by the panel in correspondence with the side
wall; the seat is of such a size that, both in the case of a single metal profile
and two panels side by side and in the case of two metal profiles and - again - two
panels side by side, said panels touch or almost touch each other through the insulating
elements that face each other with the single metal profile or the two metal profiles
entirely contained in the seat obtained by placing the two panels side by side and
therefore entirely covered by the panels;
- Figures 11A and 11B also show exploded views of the panel showing the top metal sheet
and the bottom metal sheet separated from each other together with the filler material,
both in the case of rock wool and polyurethane; In both cases, the section showing
application of the thermally insulating element in its two configurations is also
indicated; The thermally insulating element has been highlighted for greater clarity
in the section relating to the exploded Figure and may be present on any part of the
side wall; in the specific case of Figures 11A and 11B the section plane ("section
plane") is represented and, next to the 3D exploded image, part of the relative section
is highlighted for clarity, showing the two side sides of the panel (the two side
walls) on which the thermal break profile is applied;
Description of some preferred embodiments
[0099] The solution proposed here, and described in detail below, allows optimization of
the reduction of the heat loss in the coupling points of two sections or within the
same section where a panel or an additional element is integrated, such as for example
a door (and here referred to as the "omega profile" case).
[0100] It should be noted that the construction method remains unchanged in some stages,
as already described in the prior art.
[0101] In particular, in construction of the sections, the skeleton is built through the
profiles to which the panels are then coupled.
[0102] Each panel is previously prepared separately, for example in the factory, and then
transported to the site in order to be assembled, covering the skeleton.
[0103] If elements are added inside a same section, for example door(s) or other panel(s),
the relative profile(s) are added to the skeleton which then allow/s the addition
of the element (generally the so-called "omega" profile).
[0104] The panel, as already described in the prior art, is formed by an outer metal sheet
and an inner metal sheet and between which sheets material may be included or interposed,
generally with a thermal and/or acoustic insulation function, for example rock wool
or polyurethane.
[0105] The side wall creates a joint between the outer and inner sheet.
[0106] The panel can have any surface extension (generally with a rectangular or square
shape, even if other shapes are not excluded) and is formed, as mentioned, by the
top metal sheet and the bottom metal sheet spaced apart.
[0107] The side walls, again of sheet metal, shape the panel as a whole according to its
final form.
[0108] Figures 11A and 11B are a very good exploded view of the top and bottom metal sheet
with the shape of a rectangular box lid which are laid one on top of the other to
shape the panel.
[0109] Branching off orthogonally from the top and bottom metal sheet are the side walls
which, in the coupling, are laid partly one on top of the other.
[0110] Unlike the prior art, at least the panels which are used in the coupling of sections
or components within the same section now come with a certain difference, described
below.
[0111] In practice, an opening is made which separates the top metal sheet from the lower
one and which runs at least in part along the side wall (see for example the cross-sections
of Figures 11A and 11B).
[0112] Said opening creates a thermal discontinuity, that is, it prevents the passage of
heat from one face of the panel to the other through transmission through the metal
constituting the panel along the side wall.
[0113] It should, in fact, be remembered that the panel, as in the prior art, is made of
sheet metal walls and is hollow internally (except possibly, for filler material),
so that the passage of heat occurs mainly through the walls of the sheet whose thickness
can be variable, depending on the case.
[0114] Preferably, the opening (or notch) is present in the panels that are placed side
by side in the joining section - section and/or components within the same section
- and runs at least along the face of each panel intended to be coupled with the other
panel relating, for example, to the other section to be placed side by side or to
the component to be placed side by side.
[0115] As said, this notch interrupts the thermal bridge and allows the insertion of a new
thermally insulating element shown in its configurations in Figure 6B, in Figure 8
and equivalently in the sections of Figures 11A and 11B.
[0116] In greater detail, in accordance with the invention, the two sheets are machined
(the outer and the inner one) in such a way as to obtain, when assembled, an opening
(for example, a part is removed) in the side wall and which generates a discontinuity.
The joining element with thermal break function is to be placed in this opening.
[0117] For example, with reference to Figures 11A and 11B, part of the material is removed
from the side wall of the top metal sheet and similarly from the side wall of the
bottom metal sheet in order to create the space for inserting the profile in insulating
material (see the cross-sections of Figures 11A and 11B).
[0118] This metal-metal discontinuity is therefore obtained through the interposition of
said joining element which is thermally insulating (i.e., does not allow the passage
of heat) and which is in the form of a relative profile.
[0119] This is a characteristic which is common for all the configurations of the invention
presented here and allows better thermal insulation, interrupting the thermal bridge
through the interposition of a component (a suitable profile) which is thermally insulating.
[0120] The said element which generates a thermal break may have different configurations,
as described below, and the set of coupled parts may have structurally different configurations
depending on the case, described in greater detail immediately after.
[0121] In particular, the following will be obtained:
A specific construction solution in the case of coupling of two different sections
to be coupled and for this construction solution, use is possible of two different
thermal break elements to be inserted in the part from which material has been removed
in the panels that are coupled together.
[0122] A specific construction solution in the case of coupling two elements (for example,
a door-panel or a panel-panel) within the same section and for this constructive solution,
use is again possible here of two different thermal break elements to be inserted
in the part from which material has been removed in the panels (or door-panel) that
are coupled together.
[0123] Figure 11, similarly to the aforementioned Figures 11A and 11B, schematically shows
a panel object of the invention.
[0124] For the production of this panel it is possible to proceed according to, for example,
two different methods, depending on whether the filler material of the panel is a
foam material or a solid material.
[0125] For example, in the case of foam material that expands and solidifies, polyurethane
for instance, the method of procedure may be as follows:
The two metal sheets (for example, of aluminum or other materials normally used for
such panels such as stainless steel, galvanized sheet, etc.) are cut to size, any
folds included, (thus creating the top and bottom panel, for example in Figure 11B).
[0126] The thermally insulating element (for example, of plastic material as mentioned)
is made and cut to size (see component 30 drawn separately in Figure 11).
[0127] The sheets are assembled to the thermally insulating element creating the panel (in
fact, Figure 11 shows the direction indicating application of the insulating profile
30 to the metal sheet to form the panel), so that with the insulating element that
is interposed between the outer and inner metal sheets for at least one part of the
length of the side wall of the panel, therefore separating the two faces of the panel
over this section.
[0128] The panel made is therefore assembled but is empty inside, that is, being an assembly
of sheets, it forms an empty, internal chamber.
[0129] This can be filled with filler material such as polyurethane.
[0130] In the case of polyurethane (or other foam material - see Figure 11B), the panel
is placed in a press with heated shelves where, through a hole made in the formed
panel, the polyurethane is injected, expanding instantaneously, filling the panel
and gluing it all together (in particular, outer metal sheet to inner metal sheet
and thermally insulating profile).
[0131] The panel is now ready.
[0132] Where solid materials that do not expand such as, for example, rock wool (see Figure
11A), are used as fillers, one possible method of procedure is to assemble the bottom
metal sheet, already cut to size, any folds included, to the thermally insulating
element (made, for example, of plastic as mentioned) also cut to size.
[0133] Glue is spread on the bottom metal sheet and the rock wool is put in position (as
if it were a mat). The glue is then applied to the top metal sheet, already cut to
size, any folds included, which is then assembled with the plastic profile.
[0134] The glue is left to dry.
[0135] The panel obtained is shown in Figure 11 which shows an exploded view of the panel
with the thermally insulating element (in this case, the first profile configuration
is shown but matters are the same for the second configuration as well).
[0136] The generic panel therefore comprises the two parallel sheet metal walls laid one
on top of the other and spaced apart, i.e. walls 202 and 201.
[0137] Then there are the side walls 204, 205, 206 and 203.
[0138] Figure 11 shows, by way of non-limiting example, the opening 203' in correspondence
with the wall 203 where, according to one of the construction methods described above,
the element 30 made of thermally insulating material is arranged.
[0139] The panel is then applied to cover the metal profile (50; 350) which is inserted
in the specially arranged step and covered by the panel.
[0140] Having structurally described (and with the aid of some embodiments) the panel which
represents an important element of the invention that is common to all configurations,
the possible inventive configurations mentioned above are now structurally described
in detail.
JOINING OF TWO SECTIONS (SECTION 1 and SECTION 2):
[0141] With reference to Figure 6, the dashed line, as also shown in Figure 4, shows the
line along which the two sections are placed side by side in which the profiles 50
of the two sections, thus forming part of the support skeleton, are placed side by
side.
[0142] Unlike the prior art, the panels (which may be part of the roof, side wall or other)
now have a discontinuity of metal material between the outer metal sheet and the inner
metal sheet located at least in the face of the panel intended for coupling with another
panel or component and with this discontinuity interrupted by the thermal break element
30.
[0143] This discontinuity or cut by removal of material from the panel is preferably present
all along the line where the panels are side by side.
[0144] In accordance with Figure 6 (example of two sections placed side by side), it may
be seen that the panels of the two sections are always formed each one by an outer
metal sheet which is joined to an inner metal sheet, as already indicated.
[0145] This is also shown in Figure 6A which represents the conformation of the outer metal
sheet and the conformation of the inner metal sheet which, however, now present said
discontinuity and therefore a removal of material which effectively interrupts the
thermal bridge, i.e. prevents the transmission of heat from the inner metal sheet
towards the outside and vice versa.
[0146] To consolidate the cut panel and obviously close the panel as well as to reduce the
passage of heat, the discontinuity between the outer and inner metal sheet is interrupted
with a new profile in the form of the interposed element 30, again schematized in
Figure 6A and Figure 6B.
[0147] The interposed element 30, shown in a separate way in the schematic diagram of Figures
6A and 6B, allows the outer metal sheet to be joined to the inner metal sheet thus
avoiding direct contact between them and therefore interrupting the thermal bridge.
[0148] In fact, the appendage 10' on the L-shaped end of the outer metal sheet is inserted
into a seat 31, substantially V-shaped, for example, formed by the element 30, in
the same way as the end 20' of the bottom (or inside) metal sheet is inserted in a
specially arranged seat 32 made in the base of the element 30.
[0149] The element 30 is therefore a profile with a predetermined longitudinal length.
[0150] Structurally, it therefore has a vertical wall 35 from which a horizontal wall 36
branches off in such a way as to substantially assume an L-shape.
[0151] From the vertical wall 35, an arm 35' branches off from the side of the horizontal
section 36 and which forms the seat 31. The arm 35' rises upwards together with the
arm 35, this arm 35' starting from an intermediate point of the arm 35. The arm 35'
is progressively distanced from the arm 35 thereby forming the V-shaped (or substantially
V-shaped) seat 31.
[0152] The part of the horizontal wall, on the other hand, shapes a seat 33 for a seal and,
at its end, forms the further accommodating seat 32 through the branching off of two
appendages 38' and 38'' that are overlapping and spaced apart.
[0153] The element 30 is made of thermally insulating material, thereby acting as a joint
for the outer metal sheet with the inner one, reducing and/or preventing the dissipation
of heat as it physically interrupts the passage of heat from the inner metal sheet
to the outside and/or vice versa.
[0154] Generally this element 30 is made of polypropylene, even though obviously any material
suitable for thermal insulation can be used, thus preventing the passage of heat,
for example materials derived from plastic.
[0155] As said, this thermally insulating element then forms the further seat 33 which may
possibly serve to accommodate a replaceable seal 40, for instance in the case of doors.
[0156] Thanks to this thermal break component 30, the shape of the profiles in the joining
areas may be optimized and modified.
[0157] As shown in Figure 6, in fact, two aluminum profiles 50, generally of rectangular
or square cross section, facing each other, are used and placed side by side.
[0158] Panel 1 and panel 2 of Figure 6 are then machined in such a way that, in addition
to the cut that generates the discontinuity between the top and bottom metal sheets,
the bottom metal sheet forms a seat for housing the profile 50 of such a size that
the profile 50 is completely covered by the panel itself.
[0159] In this way, as clearly shown in Figure 6, the panel has a sort of L-shaped opening
(or step) so it may be correctly applied to the profile 50, the latter being totally
covered by the panel itself.
[0160] In this way, the two panels, as shown in Figure 6 and valid for all configurations,
are actually side by side and substantially in contact with each other through the
elements made of thermally insulating material that face each other, unlike in the
prior art, where the metal profile was physically interposed between the two panels
creating a physical subdivision.
[0161] This new layout further optimizes performance.
[0162] Heat dispersion through the aluminum profile 50 is prevented by the element 30 and
therefore the profile 50, in addition to being protected from external atmospheric
agents because it is totally covered by the panels, can be made of standard material
and not necessarily of materials that generate a thermal break, as was the case in
some prior art solutions (see also Figure 4).
[0163] The screw system 70 used, identical to that of the prior art, passes through the
outer and inner metal sheets of the panel from top to bottom (i.e. it crosses the
panel transversely) in order to intercept the joining element 30 in correspondence
with its walls which shapes the horizontal seat 32, also passing through the bottom
metal sheet and profile 50 and generating the connection. In this way a stable connection
is created which connects the profile 50 and the panel together.
[0164] Inside the seat 33, delimited to the bottom by the horizontal side of profile 50,
the seal 40 is inserted, the function of which is to create greater sealing, as for
all known seals.
[0165] The seal can be replaceable but this is not an essential element of the invention.
It may even not be present, therefore, and the same goes for the relative seat 33.
[0166] Figure 6A therefore schematizes conformation of the inner metal sheet of the panel
which forms an L-shaped seat for the metal profile 50 (in dashed line) and which therefore
includes the vertical section 20'' and the horizontal section 20' between which the
profile 50 is inserted, thus remaining well covered.
[0167] Also shown is the thermal break element 30 (also called thermal break profile 30),
which is applied to the panel taking care to allow the vertical section 10' of the
outer metal sheet to enter the seat 31 and the horizontal section 20' of the inner
metal sheet to enter seat 32.
[0168] Figure 6A shows precisely the separation between outer and inner metal sheet and
therefore the interposition of the element 30 which obviously in Figure 6A is seen
in front view but is clearly an element of predetermined length, generally with a
length corresponding to the entire side of the panel to which it is applied and on
which the cut is made.
[0169] Figure 11 shows an exploded view of this particular solution, valid also for the
second configuration of insulating element 350 described below.
SOLUTION WITH JOINING PROFILE WITHIN THE SAME SECTION (CALLED OMEGA PROFILE):
[0170] Figure 7 shows a similar solution in all respects, except for the fact that it is
applied within the same section, in order for example to apply an additional panel.
[0171] In this case the two aluminum profiles become a single one because this improves
performance, although two profiles 350 could be used similarly to the solution in
Figure 6.
[0172] In this case, as can be seen from Figure 7, preferably only one section 350 is therefore
provided.
[0173] For the remainder, the solution is identical to that of Figures 6, 6A and 6B in which
a discontinuity is created between the outer metal sheet and the inner metal sheet,
with this discontinuity being interrupted by a thermally insulating element 30 exactly
in the form of Figure 6B.
[0174] Figure 7A shows the case of the door connected to the panel within the same section
and this solution is identical to that of Figure 7 except obviously for the lack of
screw connection system in the door, since the door must be rotatable (i.e. opening/closing)
with respect to the profile 350 which forms its stop.
ADVANTAGES OF THE DESCRIBED SOLUTIONS:
[0175] The advantages obtained by these solutions described in Figures 6, 7 and 7A are numerous.
[0176] First of all, there is an interruption of the thermal bridge given by the contact
between the inner and outer metal sheet since a thermally insulating element 30 is
now used, for example in polypropylene or other thermally insulating material, for
example plastic material.
[0177] Furthermore, the polyamide bars (120, 220) of the prior art solutions are eliminated
entirely, thus reducing the costs associated with the polyamide bars and their assembly
with the aluminum profiles.
[0178] The new profile 50 and 350 is of standard type and not with a thermal break as in
the prior art since, when in position, it is completely covered by the panels and
its heat transmission is interrupted by the component 30.
[0179] Being totally covered, the profiles are protected without the need for special treatments.
[0180] There is therefore no need for protection processes, (such as anodizing and painting).
FURTHER VARIANT OF THE INVENTION:
[0181] A further variant of the invention is described structurally with reference to Figure
8.
[0182] Everything remains the same as previously described but the cross-sectional shape
of the thermally insulating profile changes slightly.
[0183] In this case, the said thermally insulating element 330 is made of the same materials
as that indicated in Figure 6B but its overall geometry changes in that a substantially
rectangular front part 339 is added.
[0184] Exactly as for the previous configurations, it is a profile of predetermined longitudinal
length depending on the material removal cut made in the panel and having the cross-section
shown in Figure 8.
[0185] In greater detail, the rear part 330 still provides for the vertical wall 335 which
is connected to a sort of horizontal wall 336.
[0186] The vertical wall 335 forms a substantially V-shaped seat 331 thanks to the side
339' relative to the front rectangle 339 which departs upwards from a joining point
together with said vertical wall 335. The end part of the side (339') is connected
to a horizontal section substantially parallel to the respective underlying side 338''
and connected to each other through the transversal section 339''.
[0187] As in the first solution, the section (338'') is placed above the section (338')
thus forming a horizontal accommodating seat 332 whose purpose is to accommodate the
horizontal section of the inner metal sheet cut and therefore separated from the outer
metal sheet in this area.
[0188] Basically, again in this case, the horizontal section 20' of the metal sheet enters
the seat 332 whereas the vertical section (10') enters the vertical seat 331, thus
creating a thermally insulated joint, i.e. in which there is no heat transmission
from the inner metal sheet to the outer one and vice versa.
[0189] In greater detail, Figure 9 shows the two sections placed side by side (SECTION 1
and SECTION 2) in which the two coupled profiles 50 are still present and to which
the relative panel is coupled to each one through component 330 and screw system.
[0190] The screw system comprises, again in this case exactly as for the other configurations
described previously, a bushing into which the screw that penetrates the profile is
inserted and, in this case, the bushing penetrates through the rectangle 339 contained
within.
[0191] The advantage of this solution is greater structural solidity.
[0192] Figure 10 shows the equivalent solution in the Omega profile case (i.e. panel-panel
connection within the same section) while Figure 10A shows the case in which a panel
is connected to a door (equivalent to the case of Figure 7A), again within the same
section.
[0193] In this description, the generic term of air treatment unit is used to include both
air treatment units (ATU) and air treatment systems (ATS).
[0194] In this description, by outer metal sheet of the panel is meant the one facing, when
in use, towards the outside of the section to which it is applied and therefore forming
the face of the panel in use facing the outside of the section to which it is applied
while the inner metal sheet is the one in use facing the inside of the section to
which it is applied and which therefore forms the face facing the inside of the same.
[0195] The outer and inner faces of the panel are parallel to each other or substantially
parallel and spaced apart from each other.
[0196] The side wall rises vertically from the two faces, shaping the panel.
[0197] The sheet metal panel, as mentioned, is obtained by laying the two halves on top
of one another, as shown in Figures 11A and 11B, the two halves having the shape of
a box lid, rectangular in shape for example. The vertical walls of the two halves
are laid one on top of the other over a section and the join is made through the foam
filling material injected or through glues (for example applied in part on the vertical
walls of the two overlapping parts) if filler materials such as rock wool (i.e. non-expandable
materials) are used.
1. Paneel für eine Luftbehandlungseinheit (ATU) oder ein Luftbehandlungssystem (ATS),
wobei das Paneel durch Blechmetallwände ausgeformt ist, wobei die Wände ein äußeres
Metallblech (201) und ein inneres Metallblech (202) umfassen, die in einem bestimmten
Abstand aufeinander gelegt sind und die zwei vorderen Flächen des Paneels und eine
Seitenwand (203, 204, 205, 206) von Metallblech bilden, sodass sie im Inneren einen
Aufnahmeraum definieren, der geeignet ist, ein Füllmaterial, beispielsweise ein Schaummaterial
wie Polyurethan oder ein festes Material wie Steinwolle, aufzunehmen;
- das Paneel ein oder mehrere Element(e) (30, 330) aus wärmeisolierendem Material
umfasst, die so angeordnet sind, dass sie eine Materialdiskontinuität in einem oder
mehreren Bereichen der das Paneel bildenden Blechmetallwände erzeugen und somit eine
Unterbrechung und/oder eine Verringerung der Wärmeübertragung entlang der Blechmetallwände
in dem/den angeordneten Bereich(en) bewirken;
- wobei das eine oder die mehreren Element(e) in mindestens einem Teil der Seitenwand
des Paneels so angeordnet ist (sind), dass die Materialdiskontinuität in dem Teil
der Seitenwand, in dem es (sie) angeordnet ist (sind), erzeugt wird und die Unterbrechung
und/oder Verringerung der Wärmeübertragung zwischen dem äußeren Metallblech und dem
inneren und/oder umgekehrt erzeugt wird;
- wobei mindestens ein Teil der Seitenwand eine Öffnung (203') bildet, die eine Trennzone
zwischen dem äußeren Metallblech (201) und dem inneren Metallblech (202) bewirkt;
- und wobei das eine oder die mehreren Element(e) (30, 330) aus wärmeisolierendem
Material in Übereinstimmung mit der Öffnung angeordnet ist/sind, um die Öffnung zu
schließen, sodass das/die Element(e) die Unterbrechung und/oder eine Verringerung
des Wärmedurchgangs zwischen dem äußeren Metallblech und dem inneren und/oder umgekehrt
bewirkt/bewirken;
dadurch gekennzeichnet, dass:
- Zumindest der Seitenwandteil des Paneels, der das wärmeisolierende Element (30,
330) umfasst, einen Sitz bildet, der auf einer anderen Höhe als die Öffnung zum Anordnen
des Elements (30, 330) positioniert ist, wobei der Sitz geeignet ist, ein Profil (50;
350) so zu unterbringen, dass das Profil zumindest teilweise vom Paneel bedeckt ist,
wobei das Profil vorzugsweise aus Metall, beispielsweise aus stranggepresstem Aluminium
besteht.
2. Paneel nach Anspruch 1, wobei das Element (30, 330) ein Profil mit vorbestimmter Längslänge
und mit vorbestimmter Querschnittsform ist.
3. Paneel nach Anspruch 2, wobei das Element (30, 330) im Querschnitt einschließt:
- eine vertikale Wand (35, 335);
- eine horizontale Wand (36, 336), die mit der vertikalen Wand verbunden ist;
- einen vertikalen Sitz (31), der in einer bestimmten Höhe der vertikalen Wand ausgebildet
ist, in den das freie Ende einer vertikalen Klappe (10'), die durch die Öffnung (203')
des Paneels erzeugt wird, eingesetzt wird;
- einen horizontalen Sitz (32), der in einem Punkt der horizontalen Wand, vorzugsweise
an ihrem Ende, ausgebildet ist, in den das freie Ende einer horizontalen Klappe (20'),
die durch die Öffnung des Paneels erzeugt wird, eingesetzt wird.
4. Paneel nach Anspruch 1 und 3, wobei der Sitz, der geeignet ist, das Profil (50; 350)
zu unterbringen, durch eine horizontale Klappe (20'), deren freies Ende in den horizontalen
Sitz (32) des wärmeisolierenden Profils eingesetzt ist, und durch eine vertikale Klappe
(20") ausgebildet wird, die von der horizontalen Klappe in einer Richtung wegführend
vom äußeren Metallblech abzweigt, um sich mit dem inneren Metallblech zu verbinden.
5. Paneel nach Anspruch 4, wobei das innere Metallblech des Paneels einen L-förmigen
Sitz für das Profil (50; 350) bildet und die vertikale Klappe (20") und die horizontale
Klappe (20') einschließt und zwischen die das Profil (50) eingesetzt werden kann und
somit gut abgedeckt bleibt.
6. Kupplungssystem für eine Luftbehandlungseinheit (ATU) oder ein Luftbehandlungssystem
(ATS), das Folgendes umfasst:
- mindestens eine Paneel nach einem oder mehreren der vorhergehenden Ansprüche;
- mindestens ein Profil (50, 350), vorzugsweise aus Metall, wie z. B. stranggepresstem
Aluminium, das in dem vom Paneel ausgeformten Sitz untergebracht ist,
wobei Verbindungsmittel (70), die das Paneel mit dem Profil verbinden, eingeschlossen
sind.
7. Kupplungssystem nach Anspruch 6, einschließend:
- zwei Paneelen nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 5, die
so nebeneinander angeordnet sind, dass die jeweiligen wärmeisolierenden Elemente nebeneinander
liegen;
- wobei die Sitze der zwei nebeneinander liegenden Paneelen einen einzigen Sitz definieren,
der das mindestens eine Profil (50, 350) enthält, das somit vollständig von den zwei
nebeneinander liegenden Paneelen abgedeckt bleibt,
- dadurch gekennzeichnet, dass das Profil (50, 350) an mindestens einem der zwei Paneelen mit Hilfe der Verbindungsmittel
(70) befestigt ist, die von dem äußeren Metallblech her eindringen, bis sie das Profils
schneiden.
8. Kupplungssystem nach Anspruch 7, wobei die Verbindungsmittel gleichzeitig auch die
horizontale Wand (36, 336) des Elements aus wärmeisolierendem Material schneiden.
9. Kupplungssystem nach einem oder mehreren der vorhergehenden Ansprüche 6-8, das zwei
Metallprofile (50) umfasst, die nebeneinander in dem Sitz angeordnet sind.
10. Luftbehandlungseinheit oder Luftbehandlungssystem, das das Kupplungssystem nach einem
oder mehreren der vorhergehenden Ansprüche 6 bis 9 umfasst, das so konfiguriert ist,
dass es/sie die Kupplung von zwei verschiedenen Abschnitten der Einheit oder des Systems
bewirkt oder zwei Komponenten in demselben Abschnitt zwischenschaltet.
11. Verfahren zum Bauen einer Luftbehandlungseinheit oder eines Luftbehandlungssystems
oder Teilen davon, das Folgendes einschließt:
- Bau von mindestens zwei Paneelen, die dazu bestimmt sind, nebeneinander angeordnet
zu werden, wobei ein jedes der mindestens zwei Paneele von Blechmetallwänden geformt
ist, wobei die Wände ein äußeres Metallblech (201) und ein inneres Metallblech (202)
umfassen, die in einem bestimmten Abstand aufeinander gelegt sind, die jeweils die
vorderen Flächen des Paneels und eine Seitenwand (203, 204, 205, 206) aus Blechmetall
bilden, sodass sie im Inneren ein Aufnahmeraum definieren, der geeignet ist, ein Füllmaterial,
beispielsweise ein Schaummaterial wie Polyurethan oder ein festes Material wie Steinwolle,
aufzunehmen;
und wobei das Verfahren das Anbringen eines oder mehrerer Elements(e) (30, 330) aus
wärmeisolierendem Material vorsieht, das/die in einem jeden der zwei Paneelen in einer
oder mehreren entsprechenden Öffnungen angeordnet ist/sind, die in dem die zwei Paneelen
bildenden Metallblech ausgebildet sind, so dass eine Materialdiskontinuität in dem
Metallblech erzeugt wird, die eine Unterbrechung und/oder Verringerung des Wärmedurchgangs
bewirkt, wobei die Öffnung in mindestens einem Abschnitt der jeweiligen Seitenwand
der zwei Paneelen, die dazu bestimmt sind, einander zugewandt zu sein, so ausgebildet
ist, dass der Wärmedurchgang zwischen dem äußeren und dem inneren Metallblech und/oder
umgekehrt verringert und/oder unterbrochen wird;
und wobei die zwei Paneelen so angebracht sind, dass sie mindestens ein Profil (50,
350) abdecken, wobei das Profil (50, 350) in einem Sitz eingesetzt ist, der jeweils
von den zwei Paneelen ausgebildet wird, so dass die zwei Paneelen nebeneinander liegen
und mit dem/den Element/en (30, 330) aus wärmeisolierendem Material versehen sind,
wobei das Profil (50, 350) an mindestens einer der zwei Paneelen befestigt ist.