PRIORITY CLAIM
[0002] The present invention mainly relates to a one-piece multifunction body for a hydraulic
valve assembly. The hydraulic valve assembly is used in a boiler, in particular in
a condensing boiler, or in a geothermal heat pump.
[0003] The present invention also relates to a hydraulic valve assembly using a one-piece
multifunction body made according to the teachings of the present invention.
[0004] A further object of the present invention is to provide a boiler, in particular a
condensing boiler, provided with at least one hydraulic valve assembly comprising
at least one one-piece multifunction body made according to the teachings of the present
invention.
[0005] As known, the hydraulic assemblies for combined boilers developed in recent years
have undergone a significant rationalization of the hydraulic components with the
progressive abandonment of single monofunction components connected to each other
by means of pipes in favour of increasingly compact multifunction control and safety
devices, said devices having have been designed to perform all the hydraulic functions
of the boiler.
[0006] It is also known that since the beginning of the 1990s up to ten years ago, in the
domestic heating field, multifunction hydraulic assemblies for combined boilers have
undergone a considerable evolution, gradually integrating more and more components,
devices and functions of the boiler hydraulic circuit.
[0007] Therefore, the efforts of the engineers have been directed above all to the reduction
of the size and of the manufacturing costs.
[0008] All this has actually led to the suppression of connecting pipes in favour of very
compact multifunction housing units designed to house all the devices of the hydraulic
circuit of a combined boiler.
[0011] This ever-increasing integration of the hydraulic system has been induced by the
large volumes at stake, which today in Europe alone are around five to six millions
of combined boilers produced each year.
[0012] It is also well known that the new objectives of the European Union for domestic
heating aim at encouraging the use of electricity-powered heat pumps as an alternative
to traditional gas- or oil-powered boilers.
[0013] The latest generation of heat pumps has remarkably higher yields than condensing
gas boilers and is increasingly employed for new underfloor heating plants in new
ecological buildings.
[0014] Heat pumps are combined machines for room heating and domestic hot water production
with matching storage tanks of adequate capacity.
[0015] These machines have a hydraulic heat distribution circuit basically corresponding
to the one of gas boilers, with separate storage tanks for the production of domestic
hot water.
[0016] The layout of heat pumps normally provides a hydraulic circuit consisting mainly
of pipes and fittings for connecting the components and functional devices of the
machine.
[0017] Compact multifunction housing units designed to house all devices of the heat distribution
hydraulic system are still in an embryonic state, since the layout of the heat pumps
is still various.
[0018] This causes a proliferation of variants on hydraulic circuits with low amounts of
products, or in any case amounts that do not justify any major investment in the integration
of components.
[0019] At present, therefore, heating plants using heat pumps are strongly in need of a
standardization of the hydraulic layout.
[0020] The standardization of the hydraulic circuit increases production volumes and allows
designing and investing in the making of new highly integrated multifunction hydraulic
assemblies, carefully sized with low load losses and high flow rates to be used on
heat pumps and/or on medium-power condensing boilers.
[0021] Therefore, the new hydraulic assembly for medium-power boilers and for domestic heat
pumps according to the present invention is designed and produced by providing versatile
attachments and orientations to ease the introduction on layouts of existing machines,
while still allowing the manufacturers to maintain a significant diversification of
the hydraulic circuit as well. Therefore, the main object of the present invention
is to provide an extremely compact hydraulic valve assembly for boilers, whose components
are reduced to a single multifunction valve body integrating all control and safety
devices, which is predisposed to the coupling with the rest of the hydraulic circuit
by means of quick attachments. Although the present description focuses on a simple
combined plant for room heating and for the production of domestic hot water using
a domestic hot water storage tank, the teachings of the invention may also be extended
to a more complex plant, also providing for the use of a heat pump. However, said
heat pump plant will not be described in detail not to burden the present description.
[0022] The present invention will now be described with reference to the accompanying drawings
showing non-limiting embodiments thereof with the proviso that, given the particular
complexity of the drawings and the high number of details, not all the elements have
been numbered; in which:
- Figure 1 shows a schematic diagram of a combined plant for room heating and domestic
hot water production;
- Figure 2 shows a diagram of a hydraulic valve assembly contained in the combined plant
of Figure 1;
- Figure 3 shows a perspective view of the hydraulic valve assembly of Figure 2;
- Figure 4 shows an exploded view of the hydraulic valve assembly shown in Figure 3
observed from a first point of view;
- Figure 5 shows the same exploded view of the hydraulic valve assembly shown in Figure
4 observed from a second point of view (opposite the first point of view);
- Figure 6 shows a first alternative layout of the hydraulic valve assembly as shown
in Figures 4 and 5;
- Figure 7 shows a second alternative layout of the hydraulic valve assembly as shown
in Figures 4 and 5;
- Figure 8 shows a third alternative layout of the hydraulic valve assembly as shown
in Figures 4 and 5;
- Figure 9 shows a first perspective view of a one-piece multifunction body contained
in the hydraulic valve assembly referred to in Figures 2-8;
- Figure 10 shows a second perspective view of a one-piece multifunction body contained
in the hydraulic valve assembly as shown in Figures 2-8;
- Figure 11 shows a front view (with a sectioned portion) of the one-piece multifunction
body according to Figures 9, 10;
- Figure 12 shows various significant views and sections of the one-piece multifunction
body according to Figures 9-11;
- Figure 13 shows various significant views and sections of a scroll belonging to a
centrifugal pump assembly contained in the combined plant of Figure 1; and
- Figures 14-17 show four possible couplings between the one-piece multifunction body
according to Figures 9-12 and the scroll shown in Figure 13.
[0023] In Figure 1, 10 indicates a combined plant for room heating and domestic hot water
production.
[0024] As explained hereinafter, a one-piece multifunction body for a hydraulic valve assembly
made according to the teachings of the present invention is integrated in said combined
plant 10.
[0025] The combined plant 10 comprises a condensing boiler 11 and a hydraulic network 12,
hydraulically connected to each other.
[0026] The hydraulic network 12, in turn, comprises, in a known manner, a primary heating
circuit (C1) and a secondary circuit (C2) for domestic hot water.
[0027] The primary circuit (C1) comprises a heating hot water delivery duct 50 to at least
one heating plant (IR) and a cold water return duct 51 to the condensing boiler 11.
[0028] On the other hand, the secondary circuit (C2) comprises at least one storage tank
(SER) of domestic hot water.
[0029] In particular, the storage tank (SER) is supplied with cold water through an inlet
duct (CI) for cold water coming from the aqueduct (not shown). Furthermore, the storage
tank (SER) has an outlet duct (CU) for domestic hot water that can thus flow towards
a point of use (not shown) comprising, for example, one or more taps (not shown).
[0030] As shown in Figure 1, a delivery duct 52 exiting a boiler body (CC) at some point
splits into two separate ducts, namely in the aforementioned heating hot water delivery
duct 50 and in a delivery duct 53 of a coil 54 immersed in the water contained in
the storage tank (SER). The hot water of the primary circuit (C1) flowing in the coil
54 heats the sanitary water contained in the storage tank (SER). It comes out of the
coil 54 flowing in a return duct 55 to the condensing boiler 11.
[0031] As shown in Figure 1, the gas condensing boiler 11 comprises the aforesaid boiler
body (CC), which in turn comprises:
- a premix gas burner 13 (which is associated with a gas delivery line (LG) controlled
by a safety gas valve (VV));
- a main condensing heat exchanger 14;
- a chimney (CHM) for the evacuation of the fumes produced by the gas combustion in
the boiler body (CC);
- a cold water delivery duct 15 for transferring the cold water to the main heat exchanger
14;
- a hydraulic valve assembly 20 hydraulically connected, on the one side, to the boiler
body (CC), and on the other side, to the return duct 51 of the heating plant (IR)
and to the return duct 55 of the water leaving the coil 54 immersed in the storage
tank (SER) of the secondary circuit (C2) .
[0032] As shown in more detail in Figures 2-5, the hydraulic valve assembly 20 comprises,
besides a one-piece multifunction body 27 (which will be described in greater detail
below), the following devices:
- a centrifugal pump assembly 21 comprising, in turn, an electric motor 22, which rotates
an impeller 23 (Figure 1), in turn enclosed in a scroll 24 provided with a manometer
37;
- an air vent valve 26;
- a fitting 28A with an expansion vessel 28 (Figure 1);
- a pressure switch 29;
- a three-way valve 30 advantageously shaped as a screw-on cartridge (comprising, in
turn, an electric motor 31, which, in turn, actuates a relevant shutter (OTT) opposed
by a spring (ML));
- a safety valve 33 which, when required, drains the water through an exhaust duct 34;
- a plant drainage tap 35, also passing through the aforementioned exhaust duct 34;
- a by-pass device 38 provided with a by-pass valve 38A;
- two threaded fittings 61, 62 for hydraulically connecting respectively the one-piece
multifunction body 27 with the return duct 55 (Figure 1) of the water leaving the
coil 54 and with the return duct 51 (Figure 1) of the heating plant (IR) ;
- a three-way valve cap 63.
[0033] Figure 4 also shows the presence of a fixing jumper (CVT) which, as better shown
below, serves to fix the scroll 24 to the one-piece multifunction body 27.
[0034] The hydraulic valve assembly 20 is used as an apparatus for regulating the water
flow from/to the condensing boiler 11 in which the hydraulic valve assembly 20 is
inserted. Figure 6 shows a first alternative layout of the hydraulic valve assembly
shown in Figures 4 and 5.
[0035] In this layout, the three-way valve 30 and the fitting 28A have been moved to the
left face of the one-piece multifunction body 27, whereas the pressure switch 29 and
the three-way valve plug 63 have been mounted on the right side of the one-piece multifunction
body 27. In the same layout of Figure 6, the air vent valve 26 and the safety valve
have exchanged seats, whereas the by-pass device 38 has been overturned. All other
devices have maintained the same position with respect to the one-piece multifunction
body 27.
[0036] In the second alternative layout of Figure 7, the positions of the layout shown in
Figures 4 and 5 have been substantially maintained. Only the positions of the by-pass
device 38 (now screwed onto the lower face of the one-piece multifunction body 27)
and of the two threaded fittings 61, 62 (now screwed onto the rear face of the one-piece
multifunction body 27) have changed.
[0037] On the other hand, in the third alternative layout of Figure 8, the one-piece multifunction
body 27 is rotated 90° anticlockwise (arrow (R1)) so that the three-way valve 30 and
the air vent valve 26 can be screwed on the upper face of the one-piece multifunction
body 27. In such a configuration, the by-pass device 38 is screwed onto the rear face
of the one-piece multifunction body 27, whereas the two threaded fittings 61, 62 are
screwed onto the right face of the one-piece multifunction body 27. The pressure switch
29 and the safety valve 33 have instead been mounted on the left side of the one-piece
multifunction body 27, whereas the fitting 28A and the plug 63 have been mounted on
its lower face. In the layout of Figure 8, the scroll 24 has been rotated 90° clockwise
(arrow (R2)) so that the delivery of the centrifugal pump assembly 21 is on the right
instead of upwards as in the previous embodiments shown in Figures 4-7.
[0038] In short, the spatial arrangement of the one-piece multifunction body 27, and consequently
also of the hydraulic valve assembly 20 in which this body is inserted, depends on
the structural and design characteristics of the condensing boiler 11 in which the
whole hydraulic valve assembly 20 must be integrated.
[0039] As shown in more detail in Figures 9 to 11, the one-piece multifunction body 27 comprises
a main hollow body 27A made of a piece.
[0040] The extreme compactness of the main hollow body 27A even involves the possible use
of a single composite material, said composite material being a thermoplastic material,
also called "technopolymer", which guarantees a good resistance to high operating
temperatures together with a low permeability to water absorption (hydrolysis).
[0041] The aforesaid main hollow body 27A has a substantially polyhedral hollow shape provided
with a plurality of openings formed on the faces of the polyhedron. Advantageously,
but not necessarily, the main hollow body 27A has a hollow shape having six faces
(Figures 9-11):
- a front frontal face (FC1);
- a rear frontal face (FC2);
- a right side face (FC3);
- a left side face (FC4);
- an upper face (FC5);
- a lower face (FC6).
[0042] A front hole 71, provided with a cylindrical collar 71A projecting from the front
frontal face (FC1), is formed in the front frontal face (FC1).
[0043] On the cylindrical collar 71A there are four tangential recesses 71B, 71C, 71D, 71E
which, as explained below, can be innovatively coupled to the aforementioned scroll
24 of the centrifugal pump assembly 21 (see below).
[0044] As better shown in Figure 13B, a pair of ambidextrous bars 81, 82 (internally drilled
to receive a fixing jumper (CVT)) are prismatically engaged with a first pair 71B,
71D or with a second pair 71C, 71E of tangential recesses; as better shown below,
the two drilled ambidextrous bars 81, 82 are fixed to the scroll 24 (see below).
[0045] Both the first pair 71B, 71D and the second pair 71C, 71E of tangential recesses
are respectively formed by two straight and parallel tangential recesses.
[0046] As shown in Figures 9 to 11, the main hollow body 27A has a central cavity 85 in
hydraulic communication with the front hole 71 that, as previously stated, is on the
front frontal face (FC1).
[0047] In the lower part of the rear frontal face (FC2) there are two threaded first attachments
86A to which the by-pass device 38 can be coupled. The two threaded attachments 86A
are in hydraulic communication with the central cavity 85.
[0048] As shown in Figure 10, the right side face (FC3) has a lower second attachment 87A
designed to house the cartridge-shaped three-way valve 30, which can be screwed, in
a known manner and by means of screws not shown, to two threaded holes 87A*, 87A**.
[0049] The lower second attachment 87A is overhung by an upper attachment 87B to which e.g.,
the fitting 28A to the expansion vessel 28 can be coupled by pressure (Figure 4).
The upper third attachment 87B (Figure 10) is provided with two holes 87B*, 87B**
in which a jumper (substantially shaped as a U-shaped hairpin) is inserted. Once inserted
into the two holes 87B*, 87B**, the jumper prevents the fitting 28A from being extracted
from the upper attachment 87B (Figure 10).
[0050] The left side face (FC4) (Figure 9) has the same attachments 87A, 87B, which are
identical to those already described with respect to the right side face (FC3) and
therefore will not be described again.
[0051] Two third attachments 87B are provided on the upper face (FC5) . Each third attachment
87B on the upper face (FC5) is close to an identical third attachment 87B on the right
side face (FC3), or on the left side face (FC4), respectively. The symmetry axis of
each third attachment 87B on the upper face (FC5) is perpendicular to the symmetry
axis of the respective attachment 87B on the left side face (FC3) and on the right
side face (FC4), respectively.
[0052] In other words, the third attachments 87B are grouped into two pairs. Each pair is
arranged at an upper vertex of the main hollow body 27A.
[0053] The lower face (FC6), on the other hand, provides a pair of identical threaded first
attachments 86A on which the aforementioned threaded fittings 61, 62 are screwed (Figure
12) .
[0054] The lower face (FC6) also has a further threaded attachment 88A (Figure 12), which
is offset with respect to an ideal straight line connecting the centres of the two
threaded attachments 86A.
[0055] The aforementioned drainage tap 35 is screwed onto this threaded attachment 88A.
[0056] The central hole 71 and the attachments 86A, 87A, 87B, 86A are all in hydraulic communication
with each other and with the aforementioned central cavity 85.
[0057] Incidentally, the term "multifunction" has been associated with the one-piece body
27 since this element performs both hydraulic and mechanical functions, physically
supporting a plurality of devices.
[0058] The one-piece multifunction body 27 object of the invention has been defined in claim
1.
[0059] Now consider a first straight line (X1) connecting the centres of the two second
attachments 87A, and a second straight line (X2) connecting the centres of the two
third attachments 87B (Figure 12A).
[0060] Figure 12A shows that a plane (ψ) perpendicular to the two straight lines (X1), (X2)
and passing through the centre (C1) of the central hole 71 divides the one-piece multifunction
body 27 into two identical and specularly symmetrical halves 27* and 27**.
[0061] This specular symmetry is quite relevant to give the product an extremely flexible
spatial orientation with regard to its positioning (Figures 3-8).
[0062] Obviously, apart from the aforementioned three-way valve plug 63, the hydraulic valve
assembly 20 can be provided with additional plugs (not shown) to close one or more
attachments 86A, 87A, 87B, 86A as needed for shaping to the best the hydraulic valve
assembly 20 to be received in the condensing boiler 11 in the best possible working
conditions.
[0063] Figure 13 shows the scroll 24 in more detail and according to different views.
[0064] Said scroll 24 comprises a main hollow body 24A having a front frontal face (FC7)
provided with a substantially square flange 91 having four threaded through holes
91A at the four corners.
[0065] In the threaded through holes 91A, screws (not shown) can be screwed to attach reversibly
the scroll 24 to the electric motor 22 (Figures 1, 3).
[0066] A left side face (FC8) of the scroll 24 is provided with an attachment 92, which
can be coupled e.g. to a pressure gauge 37 or a pressure switch 29, or which can be
closed by a suitable plug (not shown).
[0067] On an upper face (FC9) of the scroll 24 there is a delivery attachment 93 connected
to the cold water delivery duct 15 to the main heat exchanger 14 (Figure 1).
[0068] The upper face (FC9) is also provided with a further attachment 92 (identical to
the attachment 92 on the left side face (FC8)) to insert e.g. the pressure switch
29.
[0069] The pressure switch 29 can be coupled as desired to one of the two attachments 92
based on the orientation of the scroll 24.
[0070] In other words, the pressure switch 29 is mounted directly on the one-piece multifunction
body 27 (more precisely in one of the two upper attachments 87B) or it can be coupled
to one of the two attachments 92.
[0071] Depending on where the pressure switch 29 is mounted, the upper attachments 87B and
the free attachments 92 are closed with appropriate plugs (not shown).
[0072] The attachments 92 are identical and are arranged on substantially perpendicular
faces (FC8), (FC9).
[0073] The flange 91 of the front face (FC7) encloses a snail-shaped cavity 94 in hydraulic
communication with a central through hole 95, with the two attachments 92 and with
the delivery attachment 93.
[0074] In use, the snail-shaped cavity 94 contains the impeller 23 of the centrifugal pump
assembly 21 (FIG. 1). The water is then sucked by the impeller 23 through the central
through hole 95 (coupled to the front hole 71 on the front face (FC1) of the one-piece
multifunction body 27) and sent to the primary heat exchanger 14 through the delivery
attachment 93.
[0075] As shown in Figure 13, on a rear frontal face (FC10) (of the scroll 24), besides
the aforementioned central through hole 95 there are two ambidextrous bars 81, 82,
which are internally drilled to receive a fixing jumper (CVT); the two ambidextrous
bars 81, 82 are arranged on opposite sides with respect to the central through hole
95.
[0076] As previously stated, the two bars 81, 82 can be each time prismatically coupled
to a first pair of recesses 71B, 71D or to a second pair of recesses 71C, 71E so that
the scroll 24 can be spatially oriented in four different ways, as shown in Figures
14-17.
[0077] In short, the one-piece multifunction body 27 as defined in claim 1 allows an extremely
flexible spatial orientation of the main hollow body 27A. It is characterized in that:
- a first type of attachments 86A comprises four identical attachments, two arranged
on the rear frontal face (FC2), and, respectively, two arranged on the lower face
(FC6);
- a second type of attachments 87A comprises two identical opposite attachments, one
arranged on the right side face (FC3), and, respectively, one arranged on the left
side face (FC4);
- a third type of attachments 87B comprises four identical attachments, two arranged
on the upper face (FC5), and, respectively, one arranged on the right side face (FC3)
and one arranged on the left side face (FC4).
[0078] Besides the embodiments shown in the accompanying Figures, the person skilled in
the art can appreciate that, by varying the spatial position of the one-piece multifunction
body and/or the arrangement of the various devices mounted on the one-piece multifunction
body and/or the spatial position of the scroll of the centrifugal pump assembly, countless
configurations of the whole hydraulic valve assembly can be obtained, thus allowing
the hydraulic assembly manufacturer to satisfy the most different requests from the
producers of combined plants and/or boilers.
[0079] However, it should be clear that, although the present invention has been described
in the context of a traditional system, all the present teachings can be applied,
without significant changes, to a system comprising a heat pump.
[0080] The main advantage of the one-piece multifunction body object of the present invention
consists in providing innumerable configurations of the whole hydraulic valve assembly
with rational arrangements of the functional elements, thus making its use possible
in many types of heating plants.
[0081] All this means a significant reduction in investment costs in moulds and equipment,
as well as a substantial reduction in the overall size of the product and, therefore,
in a consequent reduction in manufacturing costs.
1. A one-piece multifunction body (27) for a hydraulic valve assembly (20) used in a
combined plant (10) for room heating and for the instantaneous production of domestic
hot water; the one-piece multifunction body (27) comprising a main hollow body (27A)
having a substantially polyhedral shape provided with the following faces:
- a front frontal face (FC1);
- a rear frontal face (FC2);
- a right side face (FC3);
- a left side face (FC4);
- an upper face (FC5);
- a lower face (FC6);
the main hollow body (27A) is further provided with
- a first plurality of hydraulic attachments (86A, 87A, 87B) obtained on the faces
((FC1), (FC2), (FC3), (FC4), (FC5), (FC6)) of the polyhedron; and
- a second plurality of functional attachments (87A, 87B), also obtained on the faces
((FC1), (FC2), (FC3), (FC4), (FC5), (FC6)) of the polyhedron; said second plurality
of functional attachments (87A, 87B) comprising attachments (87A) designed to house
a three-way valve (30);
said second plurality of functional attachments (87A, 87B) being designed to be coupled
to a plurality of control and interception devices (26, 28A, 29, 30, 33, 35, 38, 61,
62, 63) to control and intercept the water flow inside said main hollow body (27A);
said control and interception devices (26, 28A, 29, 30, 33, 35, 38, 61, 62, 63) comprising
a three-way valve (30);
wherein at least one type of attachments (86A, 87A, 87B) of said first plurality (86A)
or of said second plurality (87A, 87B) comprises at least two identical attachments
(86A, 87A, 87B) obtained on different faces ((FC1), (FC2), (FC3), (FC4), (FC5), (FC6))
of the polyhedron, so as to ensure the most suitable space orientation of said main
hollow body (27A)
said one-piece multifunction body (27) being characterized in thatit comprises:
- a first type of attachments (86A) comprising four identical attachments, two arranged
on said rear frontal face (FC2) and, respectively, two arranged on said lower face
(FC6);
- a second type of attachments (87A) comprising two identical opposite attachments,
one arranged on said right side face (FC3) and, respectively, one arranged on said
left side face (FC4);
- a third type of attachments (87B) comprising four identical attachments, two arranged
on said upper face (FC5) and, respectively, one arranged on said right side face (FC3)
and one arranged on the left side face (FC4).
2. One-piece multifunction body (27), according to Claim 1, characterized in that said third type of attachments (87B) are grouped in two pairs, each pair being arranged
at a vertex of said main hollow body (27A).
3. One-piece multifunction body (27), according to Claim 1 or to Claim 2, characterized in that it comprises two second type of attachments (87A), each designed to house a three-way
valve (30).
4. One-piece multifunction body (27), according to anyone of the preceding Claims, characterized in that it comprises two pairs of first type of attachments (86A), each pair being designed
to house a bypass device (38).
5. One-piece multifunction body (27), according to anyone of the preceding Claims, characterized in that on said front frontal face (FC1) there is a front hole (71) provided with a cylindrical
collar (71A) projecting from said front frontal face (FC1); two pairs of tangential
recesses (71B, 71C, 71D, 71E) being obtained on said cylindrical collar (71A).
6. A hydraulic valve assembly (20) for a boiler (11), characterized in that it is provided with at least one one-piece multifunction body (27) according to anyone
of the Claims from 1 to 5.
7. Hydraulic valve assembly (20), according to Claim 6, characterized in that it comprises a scroll (24), which is coupled to said one-piece multifunction body
(27); said scroll (24) being provided with a central through hole (95) at which there
are provided fixing means (81, 82, (CVT)) to be fixed to a pair of tangential recesses
(71B, 71C, 71D, 71E) on a cylindrical collar (71A) projecting from a front frontal
face (FC1) of said one-piece multifunction body (27) .
8. A combined plant (10), characterized in that it is provided with at least one hydraulic valve assembly (20) according to Claim
6 or to Claim 7.
9. Combined plant (10), according to Claim 8, characterized in that it comprises at least a condensing boiler (11).
1. Einteiliger Multifunktionskörper (27) für eine Hydraulikventilanordnung (20), die
in einer kombinierten Anlage (10) zur Raumheizung und zur sofortigen Herstellung von
Warmwasser verwendet wird, wobei der einteilige Multifunktionskörper (27) einen hohlen
Hauptkörper (27A) mit einer im wesentlichen polyedrischen Form aufweist, der die folgenden
Flächen aufweist:
eine vordere Stirnfläche (FC1);
eine hintere Stirnfläche (FC2);
eine rechte Seitenfläche (FC3);
eine linke Seitenfläche (FC4);
eine obere Fläche (FC5); und
eine untere Fläche (FC6),
wobei der hohle Hauptkörper (27A) ferner aufweist:
eine erste Mehrzahl von Hydraulikaufnahmen (86A, 87A, 87B), die auf den Flächen ((FC1),
(FC2), (FC3), (FC4), (FC5), (FC6)) des Polyeders angeordnet sind; und
eine zweite Mehrzahl von funktionellen Ansätzen (87A, 87B), die ebenfalls auf den
Flächen ((FC1) (FC2), (FC3), (FC4), (FC5), (FC6)) des Polyeders angeordnet sind,
wobei die zweite Mehrzahl funktioneller Ansätze (87A, 87B) Ansätze (87A) aufweist,
die dafür konfiguriert sind, ein Dreiwegeventil (30) aufzunehmen,
wobei die zweite Mehrzahl funktioneller Ansätze (87A, 87B) dafür konfiguriert sind,
mit mehreren Steuer- und Überwachungseinrichtungen (26, 28A, 29, 30, 33, 35, 38, 61,
62, 63) zum Steuern und Überwachen des Wasserflusses im Inneren des hohlen Hauptkörpers
(27A) verbunden zu werden, wobei die Steuer- und Überwachungseinrichtungen (26, 28A,
29, 30, 33, 35, 38, 61, 62, 63) ein Dreiwegeventil (30) aufweisen,
wobei mindestens ein Typ der Ansätze (86A, 87A, 87B) der ersten Mehrzahl (86A) oder
der zweiten Mehrzahl (87A, 87B) mindestens zwei identische Ansätze (86A, 87A, 87B)
aufweist, die auf verschiedenen Flächen ((FC1), (FC2), (FC3), (FC4), (FC5), (FC6))
des Polyeders angeordnet sind, um die am besten geeignete Raumorientierung des hohlen
Hauptkörpers (27A) zu gewährleisten,
wobei der einteilige Multifunktionskörper dadurch gekennzeichnet ist, dass er aufweist:
einen ersten Typ von Ansätzen (86A) mit vier identischen Ansätzen, von denen zwei
auf der hinteren Stirnfläche (FC2) und zwei auf der unteren Fläche (FC6) angeordnet
sind;
einen zweiten Typ von Ansätzen (87A) mit zwei identischen gegenüberliegenden Ansätzen,
von denen einer auf der rechten Seitenfläche (FC3) und einer auf der linken Seitenfläche
(FC4) angeordnet ist;
einen dritten Typ von Ansätzen (87B) mit vier identischen Ansätzen, von denen zwei
auf der oberen Fläche (FC5), einer auf der rechten Seitenfläche (FC3) und einer auf
der linken Seitenfläche (FC4) angeordnet sind.
2. Einteiliger Multifunktionskörper (27) nach Anspruch 1, dadurch gekennzeichnet, dass der dritte Typ von Ansätzen (87B) in zwei Paare gruppiert ist, wobei jedes Paar an
einem Ende des hohlen Hauptkörpers (27A) angeordnet ist.
3. Einteiliger Multifunktionskörper (27) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass er zwei zweite Typen von Ansätzen (87A) aufweist, die jeweils dafür konfiguriert
sind, ein Dreiwegeventil (30) aufzunehmen.
4. Einteiliger Multifunktionskörper (27) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass er zwei Paare von Ansätzen des ersten Typs (86A) aufweist, wobei jedes Paar dafür
konfiguriert ist, eine Umleitungseinrichtung (38) aufzunehmen.
5. Einteiliger Multifunktionskörper (27) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass auf der vorderen Stirnfläche (FC1) ein vorderes Loch (71) ausgebildet ist, das mit
einem zylindrischen Kranz (71A) versehen ist, der von der vorderen Stirnfläche (FC1)
hervorsteht, wobei an dem zylindrischen Kranz (71A) zwei Paare tangentialer Aussparungen
(71B, 71C, 71D, 71E) ausgebildet sind.
6. Hydraulikventilanordnung (20) für einen Kessel (11), dadurch gekennzeichnet, dass sie mindestens einen einteiligen Multifunktionskörper (27) nach einem der Ansprüche
1 bis 5 aufweist.
7. Hydraulikventilanordnung (20) nach Anspruch 6, dadurch gekennzeichnet, dass sie einen Aufsatz (24) aufweist, der mit dem einteiligen Multifunktionskörper (27)
verbunden ist, wobei der Aufsatz (24) ein mittiges Durchgangsloch (95) aufweist, an
dem Befestigungseinrichtungen (81, 82 (CVT)) angeordnet sind, die dazu vorgesehen
sind, an einem Paar tangentialer Aussparungen (71B, 71C, 71D, 71E) auf einem zylindrischen
Kranz (71A) befestigt zu werden, der von einer vorderen Stirnfläche (FC1) des einteiligen
Multifunktionskörpers (27) hervorsteht.
8. Kombinierte Anlage (10), dadurch gekennzeichnet, dass sie mindestens eine Hydraulikventilanordnung (20) nach Anspruch 6 oder Anspruch 7
aufweist.
9. Kombinierte Anlage (10) nach Anspruch 8, dadurch gekennzeichnet, dass sie mindestens einen Brennwertkessel (11) aufweist.
1. Corps multifonction monobloc (27) pour un ensemble soupape hydraulique (20) utilisé
dans une centrale combinée (10) pour le chauffage de locaux et pour la production
instantanée d'eau chaude sanitaire ; le corps multifonction monobloc (27) comprenant
un corps creux principal (27A) ayant une forme sensiblement polyédrique pourvu des
faces suivantes :
une face frontale avant (FC1) ;
une face frontale arrière (FC2) ;
une face latérale droite (FC3) ;
une face latérale gauche (FC4) ;
une face supérieure (FC5) ;
une face inférieure (FC6) ;
le corps creux principal (27A) étant en outre pourvu de
une première pluralité d'accessoires hydrauliques (86A, 87A, 87B) obtenus sur les
faces ((FC1), (FC2), (FC3), (FC4), (FC5), (FC6)) du polyèdre ; et
une seconde pluralité d'accessoires fonctionnels (87A, 87B), également obtenus sur
les faces ((FC1), (FC2), (FC3), (FC4), (FC5), (FC6)) du polyèdre ; ladite seconde
pluralité d'accessoires fonctionnels (87A, 87B) comprenant des accessoires (87A) conçus
pour loger une soupape à trois voies (30) ;
ladite seconde pluralité d'accessoires fonctionnels (87A, 87B) étant conçus pour être
accouplés à une pluralité de dispositifs de commande et d'interception (26, 28A, 29,
30, 33, 35, 38, 61, 62, 63) pour commander et intercepter l'écoulement d'eau à l'intérieur
dudit corps creux principal (27A) ; lesdits dispositifs de commande et d'interception
(26, 28A, 29, 30, 33, 35, 38, 61, 62, 63) comprenant une soupape à trois voies (30)
;
au moins un type d'accessoires (86A, 87A, 87B) de ladite première pluralité (86A)
ou de ladite seconde pluralité (87A, 87B) comprenant au moins deux accessoires identiques
(86A, 87A, 87B) obtenus sur des faces différentes ((FC1), (FC2), (FC3), (FC4), (FC5),
(FC6)) du polyèdre, de sorte à assurer l'orientation spatiale la plus appropriée dudit
corps creux principal (27A)
ledit corps multifonction monobloc (27) étant caractérisé en ce qu'il comprend :
un premier type d'accessoires (86A) comprenant quatre accessoires identiques, deux
disposés sur ladite face frontale arrière (FC2) et, respectivement, deux disposés
sur ladite face inférieure (FC6) ;
un deuxième type d'accessoires (87A) comprenant deux accessoires opposés identiques,
un disposé sur ladite face latérale droite (FC3) et, respectivement, un disposé sur
ladite face latérale gauche (FC4) ;
un troisième type d'accessoires (87B) comprenant quatre accessoires identiques, deux
disposés sur ladite face supérieure (FC5) et, respectivement, un disposé sur ladite
face latérale droite (FC3) et un disposé sur la face latérale gauche (FC4).
2. Corps multifonction monobloc (27), selon la revendication 1, caractérisé en ce que ledit troisième type d'accessoires (87B) est groupé en deux paires, chaque paire
étant disposée à un sommet dudit corps creux principal (27A).
3. Corps multifonction monobloc (27), selon la revendication 1 ou 2, caractérisé en ce qu'il comprend deux deuxièmes types d'accessoires (87A), chacun étant conçu pour loger
une soupape à trois voies (30).
4. Corps multifonction monobloc (27), selon l'une quelconque des revendications précédentes,
caractérisé en ce qu'il comprend deux paires de premier type d'accessoires (86A), chaque paire étant conçue
pour loger un dispositif de dérivation (38).
5. Corps multifonction monobloc (27), selon l'une quelconque des revendications précédentes,
caractérisé en ce que sur ladite face frontale avant (FC1) se trouve un trou frontal (71) pourvu d'un collier
cylindrique (71A) faisant saillie de ladite face frontale avant (FC1) ; deux paires
d'évidements tangentiels (71B, 71C, 71D, 71E) étant obtenues sur ledit collier cylindrique
(71A).
6. Ensemble soupape hydraulique (20) destiné à une chaudière (11), caractérisé en ce qu'il est pourvu d'au moins un corps multifonction monobloc (27) selon l'une quelconque
des revendications de 1 à 5.
7. Ensemble soupape hydraulique (20), selon la revendication 6, caractérisé en ce qu'il comprend une volute (24), qui est accouplée audit corps multifonction monobloc
(27) ; ladite volute (24) étant pourvue d'un trou traversant central (95) au niveau
duquel sont fournis des moyens de fixation (81, 82, (CVT)) destinés à être fixés à
une paire d'évidements tangentiels (71B, 71C, 71D, 71E) sur un collier cylindrique
(71A) faisant saillie d'une face frontale avant (FC1) dudit corps multifonction monobloc
(27).
8. Centrale combinée (10), caractérisée en ce qu'elle est pourvue d'au moins un ensemble soupape hydraulique (20) selon la revendication
6 ou 7.
9. Centrale combinée (10), selon la revendication 8, caractérisée en ce qu'elle comprend au moins une chaudière à condensation (11).