BACKGROUND
1. Technical Field
[0001] The present disclosure relates to a hot-water heating apparatus configured to send
and receive data via a network.
2. Description of the Related Art
[0002] Unexamined Japanese Patent Publication No.
2005-121251 presents a conventional hot-water supply management system made up of a water heater
operation controller that records various data, a server that stores charts of water
heaters and manages programs specified for the water heaters, and a cellular phone
that has an infrared communication function and performs remote control of the water
heater controller to send and receive data recorded on the controller.
[0003] In the conventional hot-water supply management system, the cellular phone is designed
to receive, by the use of the infrared communication function, data recorded on the
controller for a water heater that has been found to be faulty and to check the data
recorded on the controller against a chart of the water heater.
[0004] Unfortunately, the conventional system disclosed in the publication does not have
a specific configuration for detecting a fault while monitoring the operating state
inside a water heater.
[0005] EP patent publication 2 922 129 describes a fuel cell system which includes a fuel cell module performing a power
generation and discharging an exhaust combustion gas generated by the power generation.
The fuel cell system includes, inter alia, a water storage tank storing water serving
as the storage water, a storage water circulation line at which the storage water
is circulated, and a heat exchanger performing a heat exchange between the exhaust
combustion gas from the fuel cell module and the storage water. A water circulation
pump pumps storage water through the water circulation line.
[0006] JP patent publication No. 2011-220676 discloses a heat pump water heater that includes a pump electric current detecting
means for detecting electric current of the pump of a hot water supply circuit, and
a water circuit failure detecting means detecting the electric current by the pump
electric current detecting means by operating the pump with a prescribed rotational
frequency, and determining the failure of the water circuit when the electric current
is smaller than a predetermined lower limit electric current. The failure of the water
circuit is detected before starting a normal operation.
[0007] JP patent publication No. 2005-160745 is directed to a safety device for jet bath that comprises a detecting means that
detects a characteristic value of the circulation pump for circulating hot water within
a bathtub for a predetermined time from activation, and a control means for determining
the existence of an abnormality of the circulation pump by comparing the value detected
at the detecting means with a preset reference waveform and stopping the operation
of the circulation pump when the detected value is determined to be abnormal. The
characteristic value is either the current value or the rotation number of the circulation
pump. The waveform of the circulation pump for the predetermined time which is detected
when the pump functioned normally the last time is stored in a memory section of the
control means and is used as the reference waveform.
[0008] European patent publication No.
2 990 736 discloses a hot-water heating apparatus according to the preamble of claim 1.
SUMMARY
[0009] The present disclosure has been accomplished to solve the conventional challenge
described above. It is an object of the present disclosure to provide a hot-water
heating apparatus that offers enhanced convenience by notifying a control terminal
slave of a result determined on the quantity of circulated hot water via a network
before the hot-water heating apparatus stops due to an abnormal event.
[0010] A hot-water heating apparatus according to an aspect of the present disclosure includes
a heater incorporating a heat pump cycle and a heating cycle in which hot water is
circulated through the heater and a heating terminal unit, the hot water being obtained
by heating water by the heater. The hot-water heating apparatus further includes a
circulation pump circulating the hot water in the heating cycle, a circulation quantity
detector configured to detect a quantity of hot water circulated in the heating cycle,
and a controller. A determiner determines a quantity level of the hot water circulated
in the heating cycle and sends a result of the determined quantity level to a control
terminal slave via a network before the hot-water heating apparatus stops due to an
abnormal event.
[0011] A hot-water heating apparatus having this configuration offers enhanced convenience
by sending a result of the level determined on the quantity of circulated hot water
to a control terminal slave via a network before the hot-water heating apparatus stops
due to an abnormal event.
[0012] According to the aspect of the present disclosure, the hot-water heating apparatus
offers enhanced convenience by sending a result of the level determined on the quantity
of circulated hot water to the control terminal slave via the network before the hot-water
heating apparatus stops due to an abnormal event.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013]
FIG. 1 is a drawing illustrating a configuration of a hot-water heating apparatus
according to an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic graph of an advance notice based on a quantity of hot water
circulated in a heating cycle of the apparatus;
FIG. 3 is a schematic graph of another advance notice based on the quantity of hot
water circulated in the heating cycle of the apparatus;
FIG. 4 is a schematic graph of an advance notice based on a drive voltage for a circulation
pump of the apparatus; and
FIG. 5 is a schematic graph of an advance notice based on a rotation rate of the circulation
pump of the apparatus.
DETAILED DESCRIPTION
[0014] A hot-water heating apparatus according to a first aspect of the present disclosure
includes: a heater incorporating a heat pump cycle; a heating cycle in which hot water
is circulated through the heater and a heating terminal unit, the hot water being
obtained by heating water by the heater; a circulation pump circulating the hot water
in the heating cycle; a circulation quantity detector configured to detect a quantity
of hot water circulated in the heating cycle; and a controller. A determiner determines
a quantity level of the hot water circulated in the heating cycle and sends a result
of the determined quantity level to a control terminal slave via a network before
the hot-water heating apparatus stops due to an abnormal event. The "result of the
determined quantity level" herein includes at least one of observations, namely a
decrease in the quantity of hot water circulated in the heating cycle, and a clogging
of a water filter.
[0015] According to this configuration, the hot-water heating apparatus offers enhanced
convenience by sending a result of the level determined on the quantity of circulated
hot water to the control terminal slave via the network before the hot-water heating
apparatus stops due to an abnormal event.
[0016] A hot-water heating apparatus according to a second aspect of the present disclosure
is based on the hot-water heating apparatus of the first aspect of the present disclosure,
in which the determiner compares the quantity detected at the circulation quantity
detector with a predetermined quantity and determines the quantity level of the hot
water circulated in the heating cycle.
[0017] According to this configuration, the determiner sends a result of the determined
quantity level to the control terminal slave via the network if the quantity of hot
water circulated in the heating cycle falls below the predetermined quantity while
the heater operates and generates the hot water circulated in the heating cycle. This
configuration allows a service engineer who performs apparatus repair and other service
to take a step such as cleaning of the water filter before the hot-water heating apparatus
stops due to an abnormal event resulting from deposition of rust or dust of piping
on the water filter disposed in the heating cycle, for example. Consequently, the
hot-water heating apparatus prevents the clogging caused by the dust or rust of the
piping in the heating cycle.
[0018] A hot-water heating apparatus according to a third aspect of the present disclosure
is based on the hot-water heating apparatus of the first or second aspect of the present
disclosure, in which the circulation quantity detector detects the quantity of hot
water circulated in the heating cycle at a plurality of times, and the determiner
determines the quantity level of the hot water circulated in the heating cycle in
conformity with a change in values of the quantity detected at the circulation quantity
detector.
[0019] According to this configuration, the timing with which the determiner sends a result
of the determined quantity level to the control terminal slave is not immediately
before the heating apparatus stops due to an abnormal event. The determiner can predict
a decrease in flow rate and send the result of the determined quantity level in advance
of an abnormal stoppage of the apparatus. This configuration enables the hot-water
heating apparatus to offer enhanced convenience.
[0020] A hot-water heating apparatus according to a fourth aspect of the present disclosure
is based on the hot-water heating apparatus of any one of the first to third aspects
of the present disclosure. The hot-water heating apparatus further includes a drive
voltage detector configured to detect a drive voltage for the circulation pump. The
drive voltage detector detects the drive voltage for the circulation pump at a plurality
of times. The determiner determines the quantity level of the hot water circulated
in the heating cycle in conformity with a change in values of the drive voltage detected
at the drive voltage detector.
[0021] According to this configuration, the determiner determines the quantity level of
the hot water circulated in the heating cycle in conformity with the change in values
of the drive voltage detected at the drive voltage detector. In response to a decrease
in the quantity of circulated hot water, the drive voltage for the circulation pump
rises and the quantity of circulated hot water increases. Thus, the determiner determines
the quantity level of the circulated hot water based on a degree of an increase in
drive voltage. The determiner can send a result of the determined quantity level earlier.
[0022] The drive voltage for the circulation pump is directly detectable. Thus, the determiner
checks the circulation pump drive voltage for an abnormal condition of the heating
cycle and thereby avoids making errors such as missending a result of the determined
quantity level.
[0023] A hot-water heating apparatus according to a fifth aspect of the present disclosure
is based on the hot-water heating apparatus of any one of the first to fourth aspects
of the present disclosure. The hot-water heating apparatus further includes a rotation
rate detector configured to detect a rotation rate of the circulation pump. The rotation
rate detector detects the rotation rate of the circulation pump at a plurality of
times. The determiner determines the quantity level of hot water circulated in the
heating cycle in conformity with a change in values of the rotation rate detected
at the rotation rate detector.
[0024] According to this configuration, the determiner determines the quantity level of
the hot water circulated in the heating cycle in conformity with the change in values
of the rotation rate detected at the rotation rate detector. In response to a decrease
in the quantity of circulated hot water, the rotation rate of the circulation pump
rises and the quantity of the circulated hot water increases. Thus, the determiner
determines the quantity level of the circulated hot water based on a degree of increase
in rotation rate. The determiner can send a result of the determined quantity level
earlier.
[0025] The rotation rate of the circulation pump is directly detectable. Thus, the determiner
checks the circulation pump rotation rate for an abnormal condition of the heating
cycle and thereby avoids making errors such as missending a result of the determined
quantity level.
[0026] A hot-water heating apparatus according to a sixth aspect of the present disclosure
is based on the hot-water heating apparatus of any one of the first to fifth aspects
of the present disclosure. The hot-water heating apparatus further includes a display
device. The determiner sends the result of the determined quantity level to the control
terminal slave via the network before the controller shows an abnormal condition of
the heating cycle on the display device.
[0027] According to this configuration, the determiner sends the result of the determined
quantity level to the control terminal slave via the network. Thus, the control terminal
slave can visually show a prediction about an abnormal condition of the heating cycle
in a format such as a graph or a message. This configuration allows a service engineer
or a user to readily check the quantity level and thus take a step before the hot-water
heating apparatus stops due to an abnormal event.
[0028] An exemplary embodiment of the present disclosure will be described below with reference
to the drawings. This exemplary embodiment does not intend to limit the scope of the
present disclosure.
EXEMPLARY EMBODIMENT
[0029] FIG. 1 is a schematic view illustrating a hot-water heating apparatus according to
the exemplary embodiment of the present disclosure. The hot-water heating apparatus
according to this exemplary embodiment is configured to send and receive data via
a network.
[0030] In FIG. 1, a heater includes heat pump cycle 24. In heat pump cycle 24, radiator
21 radiates heat of a high-pressure refrigerant compressed at compressor 20. The refrigerant
is decompressed at decompression device 22, and then is sent to evaporator 23.
[0031] In this exemplary embodiment, the heater uses R410A refrigerant. However, the heater
may use any refrigerant other than R410A refrigerant. Radiator 21 has a heat exchanger
that includes stacked stainless steel plates. Radiator 21 may have a heat exchanger
that includes a double copper pipe.
[0032] Circulation pump 25 sends water heated at radiator 21 to heating terminal unit 34
through supply pipe 28. Heating terminal unit 34 heats a room by dissipating heat
of the hot water. Circulation pump 25 returns the water after heat dissipation to
radiator 21 through return pipe 29.
[0033] In other words, hot water that gives off heat at heating terminal unit 34 is returned
to radiator 21 through return pipe 29 and is heated at radiator 21 by refrigerant.
The hot water is again sent to heating terminal unit 34. This circulation of the hot
water constitutes a heating cycle.
[0034] After passing through heating terminal unit 34, the hot water passes through water
filter 27 disposed on return pipe 29 and gets heated at radiator 21 again. Then, the
hot water is sent to heating terminal unit 34 through circulation quantity detector
26 that is disposed on supply pipe 28 to detect a quantity of circulated hot water.
This configuration enables the hot water to pass through circulation quantity detector
26 and water filter 27 every time the hot water circulates the heating cycle.
[0035] Thus, a decrease in the quantity of hot water circulated in the heating cycle indicates
the occurrence of an abnormal event such as a clogging of water filter 27. Since determiner
42 acquires detected values of hot water circulation quantities from controller 32,
determiner 42 can determine a degree of water filter 27 clogging by determining a
level of the quantity of hot water circulated in the heating cycle.
[0036] The heater includes output water temperature detector 31 disposed on supply pipe
28 and input water temperature detector 30 disposed on return pipe 29. The heater
allows a user to set a capacity of heating terminal unit 34 or a temperature of circulated
hot water using remote controller 33.
[0037] In accordance with the set capacity of heating terminal unit 34 or the set temperature
of the circulated hot water, the heater sets a target temperature to be detected at
output water temperature detector 31. Controller 32 controls a rotation rate of circulation
pump 25, i.e. the quantity of hot water circulated in the heating cycle, such that
the difference between temperatures detected at output and input water temperature
detectors 31 and 30 is a predetermined temperature difference.
[0038] In other words, if the difference between temperatures detected at output and input
water temperature detectors 31 and 30 is smaller than a target difference, controller
32 controls so as to increase the rotation rate of circulation pump 25, i.e. the quantity
of hot water circulated in the heating cycle.
[0039] If the difference between temperatures detected at output and input water temperature
detectors 31 and 30 is larger than the target difference, controller 32 controls so
as to decrease the rotation rate of circulation pump 25, i.e. the quantity of hot
water circulated in the heating cycle.
[0040] Display device 41 is disposed on controller 32. Controller 32 is provided with drive
voltage detector 39 and rotation rate detector 40 that are designed to respectively
detect a drive voltage and a rotation rate from a motor for circulation pump 25. The
exemplary embodiment described herein includes drive voltage detector 39 and rotation
rate detector 40. However, the scope of the present disclosure should not be limited
to this exemplary embodiment. The controller may be provided with at least one of
drive voltage detector 39 and rotation rate detector 40.
[0041] Controller 32 acquires a detected level of the quantity of circulated hot water from
at least one of circulation quantity detector 26, drive voltage detector 39, and rotation
rate detector 40. Controller 32 sends information about the detected level to determiner
42.
[0042] After receiving the information about the detected level, determiner 42 determines
the level of the quantity of circulated hot water, and sends a result of the determined
quantity level to control terminal slave 38 via network 37 such as the Internet. The
"result of the determined quantity level" herein includes at least one of observations,
namely a decrease in the quantity of hot water circulated in the heating cycle, and
a clogging of water filter 27.
[0043] This configuration enables a user or a service engineer who provides service such
as replacement of water filter 27 to be notified of the result of the determined quantity
level of the quantity of circulated hot water via control terminal slave 38.
[0044] Examples of control terminal master 35 include home energy management system (HEMS)
controllers and wireless adapters. Examples of control terminal slave 38 include tablet
terminals, cellular phones, and smartphones.
[0045] If control terminal master 35 is the HEMS controller, control terminal master 35
acts as determiner 42. If control terminal master 35 is the wireless adapter, a server
capable of sending and receiving data via a network acts as determiner 42.
[0046] If control terminal master 35 acts as determiner 42, controller 32 acquires the detected
level of the quantity of circulated hot water and sends information about the detected
level to determiner 42. Determiner 42 determines the level of the quantity of circulated
hot water and sends a result of the determined quantity level to control terminal
slave 38 via network data transceiver (router) 36 and network 37.
[0047] If control terminal master 35 is a wireless adapter and if a server capable of sending
and receiving data via a network acts as determiner 42, controller 32 acquires the
detected level of the quantity of circulated hot water and sends information about
the detected level to the server acting as determiner 42 via network data transceiver
(router) 36 and network 37. Determiner 42 determines the level of the quantity of
circulated hot water and sends a result of the determined quantity level to control
terminal slave 38 via network 37.
[0048] As described above, the hot-water heating apparatus according to this exemplary embodiment
operates as a hot-water heating system.
[0049] If a value detected by at least one of circulation quantity detector 26, drive voltage
detector 39, and rotation rate detector 40 is smaller than or equal to a predetermined
value, determiner 42 in the hot-water heating apparatus according to this exemplary
embodiment determines that the level of the quantity of hot water circulated in the
heating cycle is abnormal. In other words, determiner 42 determines that water filter
27 gets clogged and sends the result of the determined quantity level to control terminal
slave 38 via network 37 before the result is shown on display device 41. This configuration
enables the user or the service engineer to recognize the situation.
[0050] Control terminal slave 38 visually shows the result of the determined quantity level
of the hot water circulated in the heating cycle in a format such as a graph or a
message to allow the user or the service engineer to readily recognize the level of
the quantity of circulated hot water. Consequently, the user or the service engineer
can take a proactive step such as replacement of water filter 27 before the hot-water
heating apparatus stops.
[0051] FIG. 2 is a schematic graph of an advance notice based on a quantity of hot water
circulated in a heating cycle of the exemplary embodiment according to the present
disclosure.
[0052] Circulation quantity detector 26 detects the quantity of hot water circulated in
the heating cycle, and determiner 42 acquires the detected quantity. When determiner
42 determines that because of deposition of rust or dust of piping on water filter
27, the detected quantity gets smaller than an allowable flow rate for normal operation
of the hot-water heating apparatus and has reached a predetermined quantity (a value
specified for advance notice issuance), the heating apparatus sends an advance notice
about clogging of water filter 27 to control terminal slave 38 via the network. The
heating apparatus may send an advance notice about a decrease in the quantity of hot
water circulated in the heating cycle to control terminal slave 38 via the network.
[0053] The predetermined quantity is greater than a value at which controller 32 stops the
hot-water heating apparatus due to an abnormal event by a predetermined amount.
[0054] This configuration allows the service engineer to take a step such as cleaning of
water filter 27, removal of clogging from the heating cycle piping, or replacement
of water filter 27 before the hot-water heating apparatus stops due to an abnormal
event.
[0055] FIG. 3 is a schematic graph of another advance notice based on the quantity of hot
water circulated in the heating cycle according to the present exemplary embodiment.
[0056] Circulation quantity detector 26 detects the quantity of hot water circulated in
the heating cycle at a plurality of times. In conformity with a change in values of
the quantity detected at circulation quantity detector 26, determiner 42 determines
a degree of decrease (a down slope) in the quantity of hot water circulated in the
heating cycle. Before controller 32 stops the hot-water heating apparatus due to an
abnormal event, the heating apparatus sends an advance notice about clogging of water
filter 27 to control terminal slave 38. The heating apparatus may send an advance
notice about a decrease in the quantity of hot water circulated in the heating cycle
to control terminal slave 38 via the network.
[0057] Detector 26 detects the quantity of circulated hot water at ten-minute intervals,
and controller 32 sends values of the detected quantity to determiner 42. Of values
of the circulation quantity detected at ten-minute intervals for 24 hours, a minimum
value is stored as a flow rate for the 24 hours (a period X) on determiner 42. During
measurement in a next period of 24 hours (a period X+1), determiner 42 eliminates
data received at ten-minute intervals for the period X. This process is repeated,
and determiner 42 stores flow rates for periods of every 24 hours.
[0058] Determiner 42 analyzes the progression of the flow rate for every 24 hours based
on a change in the slope of an approximate straight line for most recent three days
(72 hours). If determiner 42 determines that the flow rate will reach an abnormal-stop
flow rate (at which the hot-water heating apparatus stops due to an abnormal event)
within 500 hours, determiner 42 sends an advance notice.
[0059] In this exemplary embodiment described above, the hot-water heating apparatus detects
the quantity of circulated hot water at the plurality of times. The timing with which
determiner 42 sends the notice about the decrease in the quantity of circulated hot
water is not immediately before the hot-water heating apparatus stops due to an abnormal
event. Determiner 42 determines a degree of decrease (a down slope) in the quantity
of circulated hot water, and thereby predicts readily and precisely a right timing
with which the service engineer should clean water filter 27, remove clogging from
the heating cycle piping, or replace water filter 27. This configuration enables the
hot-water heating apparatus to offer enhanced convenience.
[0060] Controller 32 sends data detected at circulation quantity detector 26 for the period
X to determiner 42. After that, during measurement in the next period of 24 hours
(the period X+1), determiner 42 eliminates data received at ten-minute intervals for
the period X. This allows determiner 42 to analyze the progression of flow rates and
predict a quantity level of circulated hot water while restraining an increase in
cost.
[0061] FIG. 4 is a schematic graph of an advance notice based on a drive voltage for circulation
pump 25 according to the present exemplary embodiment.
[0062] Drive voltage detector 39 detects the drive voltage for circulation pump 25 at a
plurality of times. In conformity with a change in drive voltages detected at drive
voltage detector 39, determiner 42 determines a degree of increase (an up slope) in
drive voltage for circulation pump 25. Before controller 32 stops the hot-water heating
apparatus due to an abnormal event, the heating apparatus sends an advance notice
about clogging of water filter 27 to control terminal slave 38. The heating apparatus
may send an advance notice about a decrease in the quantity of hot water circulated
in the heating cycle to control terminal slave 38 via the network.
[0063] Detector 39 detects the drive voltage for circulation pump 25 at ten-minute intervals,
and controller 32 sends detected drive voltages to determiner 42. Of drive voltages
detected at ten-minute intervals for 24 hours, a maximum drive voltage is stored as
a drive voltage for the 24 hours (a period X) on determiner 42. During measurement
in a next period of 24 hours (a period X+1), determiner 42 eliminates data received
at ten-minute intervals for the period X. This process is repeated, and determiner
42 stores drive voltages for periods of every 24 hours.
[0064] Determiner 42 analyzes the progression of the drive voltage for every 24 hours based
on a change in the slope of an approximate straight line for most recent three days
(72 hours). If determiner 42 determines that the drive voltage will reach an upper
limit drive voltage (at which the hot-water heating apparatus stops due to an abnormal
event) within 500 hours, determiner 42 sends an advance notice.
[0065] In this exemplary embodiment described above, the hot-water heating apparatus detects
the drive voltage for circulation pump 25 at the plurality of times. The timing with
which determiner 42 sends the notice about the increase in drive voltage for circulation
pump 25 is not immediately before controller 32 stops the hot-water heating apparatus
due to an abnormal event. Determiner 42 determines a degree of increase (an up slope)
in drive voltage for circulation pump 25, and thereby predicts readily and precisely
a right timing with which the service engineer should clean water filter 27, remove
clogging from the heating cycle piping, or replace water filter 27. This configuration
enables the hot-water heating apparatus to offer enhanced convenience.
[0066] In this exemplary embodiment, controller 32 sends data detected at drive voltage
detector 39 for the period X to determiner 42. After that, during measurement in the
next period of 24 hours (the period X+1), determiner 42 eliminates data received at
ten-minute intervals for the period X. This allows determiner 42 to analyze the progression
of drive voltages for circulation pump 25 and predict a quantity level of circulated
hot water while restraining an increase in cost.
[0067] FIG. 5 is a schematic graph of an advance notice based on a rotation rate of circulation
pump 25 according to the present exemplary embodiment.
[0068] Rotation rate detector 40 detects a rotation rate of circulation pump 25 at a plurality
of times. In conformity with a change in rotation rates detected at rotation rate
detector 40, determiner 42 determines a degree of increase (an up slope) in rotation
rate of circulation pump 25. Before controller 32 stops the hot-water heating apparatus
due to an abnormal event, the heating apparatus sends an advance notice about clogging
of water filter 27 to control terminal slave 38. The heating apparatus may send an
advance notice about a decrease in the quantity of hot water circulated in the heating
cycle to control terminal slave 38 via the network.
[0069] Detector 40 detects a rotation rate of circulation pump 25 at ten-minute intervals,
and controller 32 sends detected rotation rates to determiner 42. Of rotation rates
detected at ten-minute intervals for 24 hours, a maximum rotation rate is stored as
a pump rotation rate for the 24 hours (a period X) on determiner 42. During measurement
in a next period of 24 hours (a period X+1), determiner 42 eliminates data received
at ten-minute intervals for the period X. This process is repeated, and determiner
42 stores rotation rates for periods of every 24 hours.
[0070] Determiner 42 analyzes the progression of the rotation rate for every 24 hours based
on a change in the slope of an approximate straight line for most recent three days
(72 hours). If determiner 42 determines that the rotation rate will reach an upper
limit rotation rate (a rotation rate of circulation pump 25 at which the hot-water
heating apparatus stops due to an abnormal event) within 500 hours, determiner 42
sends an advance notice.
[0071] In this exemplary embodiment described above, the hot-water heating apparatus detects
the rotation rate of circulation pump 25 at the plurality of times. The timing with
which determiner 42 sends the notice about the increase in rotation rate of circulation
pump 25 is not immediately before the hot-water heating apparatus stops due to an
abnormal event. Determiner 42 determines a degree of increase (an up slope) in rotation
rate of circulation pump 25, and thereby predicts readily and precisely a right timing
with which the service engineer should clean water filter 27, remove clogging from
the heating cycle piping, or replace water filter 27. This configuration enables the
hot-water heating apparatus to offer enhanced convenience.
[0072] In this exemplary embodiment, controller 32 sends data detected at rotation rate
detector 40 for the period X to determiner 42. After that, during measurement in the
next period of 24 hours (the period X+1), determiner 42 eliminates data received at
ten-minute intervals for the period X. This allows determiner 42 to analyze the progression
of rotation rates of circulation pump 25 and predict a quantity of circulated hot
water while restraining an increase in cost.
[0073] As described above, a hot-water heating apparatus according to the present disclosure
can notify a control terminal slave of a result determined based on the quantity of
circulated hot water via a network before the hot-water heating apparatus stops due
to an abnormal event. Applications of the hot-water heating apparatus acting as a
heater include hot-water heating apparatuses that run by any of heat sources such
as heat pump cycles, gases, and oil.
1. A hot-water heating apparatus comprising:
a heater including a heat pump cycle (24);
a heating cycle in which hot water is circulated through the heater and a heating
terminal unit (34), the hot water being obtained by heating water by the heater;
a circulation pump (25) circulating the hot water in the heating cycle;
a circulation quantity detector (26) configured to detect a quantity of the hot water
circulated in the heating cycle; and
a controller (32),
a determiner (42) determining a quantity level of the hot water circulated in the
heating cycle and,
characterized in that the determiner (42) sends a result of the determined quantity level to a control
terminal slave (38) via a network (37) before the hot-water heating apparatus stops
due to an abnormal event.
2. The hot-water heating apparatus according to claim 1, wherein the determiner (42)
compares the quantity detected at the circulation quantity detector (26) with a predetermined
quantity and determines the quantity level of the hot water circulated in the heating
cycle.
3. The hot-water heating apparatus according to either claim 1 or 2, wherein
the circulation quantity detector (26) detects the quantity of the hot water circulated
in the heating cycle at a plurality of times, and
the determiner (42) determines the quantity level of the hot water circulated in the
heating cycle in conformity with a change in values of the quantity detected at the
circulation quantity detector (26).
4. The hot-water heating apparatus according to any one of claims 1 to 3, further comprising
a drive voltage detector (39) configured to detect a drive voltage for the circulation
pump (25),
wherein
the drive voltage detector (39) detects the drive voltage for the circulation pump
(25) at a plurality of times, and
the determiner (42) determines the quantity level of the hot water circulated in the
heating cycle in conformity with a change in values of the drive voltage detected
at the drive voltage detector (39).
5. The hot-water heating apparatus according to any one of claims 1 to 4, further comprising
a rotation rate detector (40) configured to detect a rotation rate of the circulation
pump (25),
wherein
the rotation rate detector (40) detects the rotation rate of the circulation pump
(25) at a plurality of times, and
the determiner (42) determines the quantity level of the hot water circulated in the
heating cycle in conformity with a change in values of the rotation rate detected
at the rotation rate detector (40).
6. The hot-water heating apparatus according to any one of claims 1 to 5, further comprising
a display device (41),
wherein the determiner (42) sends a result of the determined quantity level to the
control terminal slave (38) via the network (37) before the controller (32) shows
an abnormal condition of the heating cycle on the display device (41).
1. Warmwassererwärmungsvorrichtung, umfassend:
ein Heizgerät, das einen Wärmepumpenkreislauf (24) umfasst;
einen Heizkreislauf, in dem Warmwasser durch das Heizgerät und eine Heizendeinheit
(34) in Umlauf gebracht wird, wobei das Warmwasser durch Erwärmen von Wasser mithilfe
des Heizgeräts erhalten wird;
eine Umlaufpumpe (25), die das Warmwasser in dem Heizkreislauf in Umlauf bringt;
einen Umlaufmengendetektor (26), der dazu eingerichtet ist, eine Menge des Warmwassers
zu erfassen, das in dem Heizkreislauf in Umlauf gebracht wird; und
eine Steuerung (32),
eine Bestimmungsvorrichtung (42), die ein Mengenniveau des Warmwassers bestimmt, das
in dem Heizkreislauf in Umlauf gebracht wird, und
dadurch gekennzeichnet, dass die Bestimmungsvorrichtung (42) ein Ergebnis des bestimmten Mengenniveaus über ein
Netzwerk (37) an einen Steuerterminal-Slave (38) sendet, bevor die Warmwassererwärmungsvorrichtung
wegen eines anormalen Ereignisses stehenbleibt.
2. Warmwassererwärmungsvorrichtung nach Anspruch 1, wobei die Bestimmungsvorrichtung
(42) die beim Umlaufmengendetektor (26) erfasste Menge mit einer vorgegebenen Menge
vergleicht und das Mengenniveau des Warmwassers bestimmt, das in dem Heizkreislauf
in Umlauf gebracht wird.
3. Warmwassererwärmungsvorrichtung nach Anspruch 1 oder 2, wobei
der Umlaufmengendetektor (26) die Menge des Warmwassers, das in dem Heizkreislauf
in Umlauf gebracht wird, zu mehreren Zeitpunkten erfasst, und
die Bestimmungsvorrichtung (42) das Mengenniveau des Warmwassers, das in dem Heizkreislauf
in Umlauf gebracht wird, in Einklang mit einer Änderung von Werten der beim Umlaufmengendetektor
(26) erfassten Menge bestimmt.
4. Warmwassererwärmungsvorrichtung nach einem der Ansprüche 1 bis 3, ferner umfassend
einen Antriebsspannungsdetektor (39), der dazu eingerichtet ist, eine Antriebsspannung
für die Umlaufpumpe (25) zu erfassen,
wobei
der Antriebsspannungsdetektor (39) die Antriebsspannung für die Umlaufpumpe (25) zu
mehreren Zeitpunkten erfasst, und
die Bestimmungsvorrichtung (42) das Mengenniveau des Warmwassers, das in dem Heizkreislauf
in Umlauf gebracht wird, in Einklang mit einer Änderung von Werten der beim Antriebsspannungsdetektor
(39) erfassten Antriebsspannung bestimmt.
5. Warmwassererwärmungsvorrichtung nach einem der Ansprüche 1 bis 4, ferner umfassend
einen Drehzahldetektor (40), der dazu eingerichtet ist, eine Drehzahl der Umlaufpumpe
(25) zu erfassen,
wobei
der Drehzahldetektor (40) die Drehzahl der Umlaufpumpe (25) zu mehreren Zeitpunkten
erfasst, und
die Bestimmungsvorrichtung (42) das Mengenniveau des Warmwassers, das in dem Heizkreislauf
in Umlauf gebracht wird, in Einklang mit einer Änderung von Werten der beim Drehzahldetektor
(40) erfassten Drehzahl bestimmt.
6. Warmwassererwärmungsvorrichtung nach einem der Ansprüche 1 bis 5, ferner umfassend
eine Anzeigeeinrichtung (41),
wobei die Bestimmungsvorrichtung (42) ein Ergebnis des bestimmten Mengenniveaus über
das Netzwerk (37) an den Steuerterminal-Slave (38) sendet, bevor die Steuerung (32)
auf der Anzeigeeinrichtung (41) einen anomalen Zustand des Heizkreislaufs anzeigt.
1. Appareil de chauffage d'eau chaude comprenant :
un dispositif de chauffage comprenant un cycle de pompe à chaleur (24) ;
un cycle de chauffage dans lequel de l'eau chaude circule à travers le dispositif
de chauffage et une unité de terminal de chauffage (34), l'eau chaude étant obtenue
par chauffage de l'eau par le dispositif de chauffage ;
une pompe de circulation (25) faisant circuler l'eau chaude dans le cycle de chauffage
;
un détecteur de quantité en circulation (26) conçu pour détecter une quantité d'eau
chaude circulant dans le cycle de chauffage ; et
un dispositif de commande (32),
un dispositif de détermination (42) déterminant un niveau de quantité d'eau chaude
circulant dans le cycle de chauffage et
caractérisé en ce que le dispositif de détermination (42) envoie un résultat du niveau de quantité déterminé
à un terminal esclave de commande (38) par l'intermédiaire d'un réseau (37) avant
l'arrêt de l'appareil de chauffage d'eau chaude en raison d'un événement anormal.
2. Appareil de chauffage d'eau chaude selon la revendication 1, le dispositif de détermination
(42) comparant la quantité détectée au niveau du détecteur de quantité en circulation
(26) à une quantité prédéterminée et déterminant le niveau de quantité d'eau chaude
circulant dans le cycle de chauffage.
3. Appareil de chauffage d'eau chaude selon l'une ou l'autre des revendications 1 ou
2,
le détecteur de quantité en circulation (26) détectant une pluralité de fois la quantité
d'eau chaude circulant dans le cycle de chauffage et
le dispositif de détermination (42) déterminant le niveau de quantité d'eau chaude
circulant dans le cycle de chauffage conformément à un changement de valeurs de la
quantité détectée au niveau du détecteur de quantité en circulation (26).
4. Appareil de chauffage d'eau chaude selon l'une quelconque des revendications 1 à 3,
comprenant en outre
un détecteur de tension de pilotage (39) conçu pour détecter une tension de pilotage
pour la pompe de circulation (25),
le détecteur de tension de pilotage (39) détectant une pluralité de fois la tension
de pilotage pour la pompe de circulation (25) et
le dispositif de détermination (42) déterminant le niveau de quantité d'eau chaude
circulant dans le cycle de chauffage conformément à un changement de valeurs de la
tension de pilotage détectée au niveau du détecteur de tension de pilotage (39).
5. Appareil de chauffage d'eau chaude selon l'une quelconque des revendications 1 à 4,
comprenant en outre
un détecteur de vitesse de rotation (40) conçu pour détecter une vitesse de rotation
de la pompe de circulation (25),
le détecteur de vitesse de rotation (40) détectant une pluralité de fois la vitesse
de rotation de la pompe de circulation (25) et
le dispositif de détermination (42) déterminant le niveau de quantité d'eau chaude
circulant dans le cycle de chauffage conformément à un changement de valeurs de la
vitesse de rotation détectée au niveau du détecteur de vitesse de rotation (40).
6. Appareil de chauffage d'eau chaude selon l'une quelconque des revendications 1 à 5
comprenant en outre
un dispositif d'affichage (41),
le dispositif de détermination (42) envoyant un résultat du niveau de quantité déterminé
au terminal esclave de commande (38) par l'intermédiaire du réseau (37) avant que
le dispositif de commande (32) présente une condition anormale du cycle de chauffage
sur le dispositif d'affichage (41).