JP2013167395A - Heat pump cycle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a heat pump cycle device capable of further surely discharging a refrigerant leaked to a water circuit outdoors.SOLUTION: A heat pump cycle device comprises: a compressor 3 for compressing a refrigerant; an air-heat exchanger 1 for heat-exchanging air and the refrigerant; a water-heat exchanger 2 for heat-exchanging the refrigerant and water; a heat pump heat source machine 100 constituting a refrigerant circuit 110 by piping-connecting narrowing devices 6, 7 for adjusting the pressure of the refrigerant flowing in the water-heat exchanger 2; and a control device 201 having a hot water dispenser 200 having a pump 53 for making heat-exchanged water flow by the water-heat exchanger 2, constituting the water-heat exchanger 2 and a water circuit 210 for supplying heat-exchanged water, and having air vent valve 59 for discharging air in the water circuit 210, and an external contact terminal 202 for inputting signals indicating the permission of operations of the heat pump heat source machine 100 and the hot water dispenser 200.

Description

  The present invention relates to a heat pump cycle apparatus. In particular, it relates to ensuring safety against combustible refrigerants.

  2. Description of the Related Art Conventionally, in a device (heat pump cycle device) that uses a heat pump cycle such as a water heater, there is a heat pump cycle device that uses a heat pump cycle (refrigeration cycle) to heat water, hot water supply, and air conditioning. In such a heat pump cycle device, for example, heat exchange between the refrigerant circulating in the refrigerant circuit and the water flowing in the water circuit is performed in the water heat exchanger to heat the water in the water circuit. Here, since water expands or air may be generated by heating, the water circuit often has an air vent valve or the like in the water circuit (see, for example, Patent Document 1).

  On the other hand, HCFC, HFC refrigerant and the like have been conventionally used as the refrigerant in the refrigerant circuit. However, these refrigerants contain substances that destroy the ozone layer or cause global warming when released into the atmosphere. Therefore, HCFC, HFC refrigerants and the like have recently become low refrigerants with a low ozone depletion coefficient and a global warming coefficient, such as natural refrigerants (HC) such as butane and propane, for reasons such as high environmental burden and high global warming potential. Switching is taking place. For example, even if it is a HFC refrigerant | coolant, the refrigerant | coolant of the global warming potential near a natural refrigerant | coolant like R32 is desired. The same applies to the heat pump cycle apparatus.

JP 2010-276229 A (FIG. 2)

  However, natural refrigerants, refrigerants such as R32, and the like are different from conventional heat pump cycle devices because of their combustibility. Therefore, care must be taken when using it. In particular, it is not preferable for safety to use a flammable refrigerant in an apparatus that does not take measures against refrigerant leakage.

  Here, for example, even if the water heat exchanger is damaged and flammable refrigerant leaks (inflows) into the indoor water circuit, if the air vent valve etc. is outdoors, the refrigerant should be discharged outdoors. It is possible to improve indoor safety.

  However, the conventional heat pump cycle device does not have means for confirming whether or not an air vent valve or the like provided in the water circuit is installed in a preferable place such as outdoors.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a heat pump cycle device that can discharge the refrigerant leaked into the water circuit to the outdoors more reliably. .

  The heat pump cycle device of the present invention includes a compressor that compresses refrigerant, an air heat exchanger that performs heat exchange between air and refrigerant, a water heat exchanger that performs heat exchange between the refrigerant and water, and a refrigerant that flows through the water heat exchanger. It has a heat pump heat source machine that configures a refrigerant circuit by piping connection with a throttle device that performs pressure adjustment, and a pump for flowing water that has been heat exchanged in the water heat exchanger, and water that has been heat exchanged with the water heat exchanger. A water heater having an air vent valve for discharging the air in the water circuit, a heat pump heat source device, and a control having an external contact terminal for inputting a signal indicating operation permission of the water heater Device.

  Since the heat pump cycle device of the present invention has the external contact terminal in the control device, for example, it can be prevented from operating until a signal is input to the external contact terminal. For this reason, for example, when a signal is input after confirming that an air vent valve or the like is installed outdoors, for example, even when a flammable refrigerant leaks into the water circuit, the refrigerant enters the indoor space. Can be prevented, and combustion of the refrigerant indoors when the refrigerant leaks can be prevented.

It is a figure which shows the structure of the heat pump cycle apparatus of Embodiment 1 of this invention. It is a figure which shows the control apparatus 201 of Embodiment 1 of this invention. It is a figure which shows the structure of the heat pump cycle apparatus of Embodiment 2 of this invention. It is a figure which shows the structure of the heat pump cycle apparatus of Embodiment 3 of this invention.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration of a heat pump cycle device according to Embodiment 1 of the present invention. In the present embodiment, a heat pump water heater 1000 will be described as an example of a heat pump cycle device. Here, the levels of temperature, pressure, etc. described below are not particularly determined in relation to absolute values, but are relatively determined in terms of the state and operation of the system, device, etc. And

  The heat pump heat source device 100 (hereinafter referred to as the heat source device 100) has a flow of refrigerant opposite to that in the normal operation and the heating hot water supply operation (hereinafter referred to as normal operation) in which the water flowing through the water heater 200 is heated by the water heat exchanger 2. The defrosting operation that becomes the reverse cycle becomes. In FIG. 1, the solid line arrows indicate the refrigerant circulation direction in the normal operation, and the broken line arrows indicate the refrigerant circulation direction in the defrosting operation. The water heater 200 circulates water by the pump 53. An arrow 83 indicates the direction in which the water circulating in the water circuit 210 flows.

(Configuration of heat source device 100)
The heat source apparatus 100 according to the present embodiment includes a compressor 3, a four-way valve 4, a water heat exchanger 2, a first expansion valve 6 (first throttle device), an intermediate pressure receiver 5, and a second expansion valve 7 (second throttle). Apparatus) and an air heat exchanger 1, and a refrigerant circuit 110 is configured by pipe connection. Moreover, it has the control apparatus 101 which performs drive control of actuators, such as the compressor 3, the four-way valve 4, and the expansion valves 6 and 7.

  The compressor 3 compresses and discharges the sucked refrigerant. The compressor 3 in the present embodiment includes an inverter device and the like, and can arbitrarily change the capacity of the compressor 3 (the amount of refrigerant sent out per unit time) by arbitrarily changing the drive frequency. To do. The four-way valve 4 can switch the suction side and the discharge side of the compressor 3 with respect to the pipe connection relationship in the refrigerant circuit 110, and switches the refrigerant circulation direction in the normal operation and the defrosting operation.

  The water heat exchanger 2 performs heat exchange between the water flowing through the water circuit 210 and the refrigerant flowing through the refrigerant circuit 110. The water heat exchanger 2 is, for example, a plate heat exchanger. The water heat exchanger 2 heats water flowing through the water circuit 210 as a radiator (condenser) during normal operation. On the other hand, during the defrosting operation, it becomes a heat absorber (evaporator) that absorbs heat from the water in the water circuit 210 and cools the water. Here, in the present embodiment, the water heat exchanger 2 is built in the heat source device 100, but may be built in the water heater 200, for example. Further, the heat source device 100 and the water heater 200 may be provided independently.

  The first expansion valve 6 adjusts the flow rate of the refrigerant, and performs, for example, pressure adjustment (decompression) of the refrigerant flowing through the water heat exchanger 2. The intermediate pressure receiver 5 is located between the first expansion valve 6 and the second expansion valve 7 in the refrigerant circuit 110 and accumulates excess refrigerant. Here, the suction pipe 11 connected to the suction side of the compressor 3 passes through the inside of the intermediate pressure receiver 5, and the refrigerant passing through the through portion 12 of the suction pipe 11 and the refrigerant in the intermediate pressure receiver 5 The heat exchange can be performed. For this reason, the intermediate pressure receiver 5 has a function as an internal heat exchanger.

  The second expansion valve 7 adjusts the flow rate of the refrigerant and adjusts the pressure. Here, it is assumed that the first expansion valve 6 and the second expansion valve 7 of the present embodiment are electronic expansion valves that can change the opening degree based on an instruction from the control device 101. The air heat exchanger 1 performs heat exchange with, for example, outdoor air (outside air) sent by a refrigerant and a fan or the like. The air heat exchanger 1 functions as a heat absorber (evaporator) during normal operation. On the other hand, it functions as a radiator (condenser) during the defrosting operation.

  Here, as the refrigerant flowing through the refrigerant circuit 110 included in the heat source apparatus 100, for example, R32 (HFC single refrigerant having a lower global warming coefficient than R410A or R407C, which is an HFC (Hydro Fluoro Carbon) mixed refrigerant). A single or mixed refrigerant of difluoromethane) or hydrofluoroolefin type refrigerant (HFO1234yf or HFO1234ze, hereinafter referred to as HFO), HC (Hydro Carbon) type R290 (propane) or R1270 (propylene) is used. These refrigerants have low environmental impact such as a low global warming potential, but are flammable.

(Control device 101)
The control device 101 of the heat source device 100 according to the present embodiment can communicate with the control device 201 of the water heater 200 and a remote controller (hereinafter referred to as a remote controller) 301 via a control line 310. The control device 101 includes, for example, a physical quantity related to detection by a temperature sensor (not shown) and a pressure sensor (not shown), an operation content instructed by a user of the heat pump water heater 1000 by operating the remote controller 301, and a water heater The control device 201 receives a signal including data such as operation details, drives the compressor 3, switches the flow path of the four-way valve 4, blows the air heat exchanger 1, and opens the first expansion valve 6. The opening degree of the second expansion valve 7 is controlled.

(Operation of heat source device 100)
Next, the operation of the heat source device 100 will be described based on the refrigerant flow in the refrigerant circuit 110 based on FIG. The control device 101 controls actuators such as the compressor 3.

(Operation during normal operation)
During normal operation, the control device 101 sets the four-way valve 4 to be a flow path indicated by a solid line in FIG. For this reason, during normal operation, the compressor 3, the four-way valve 4, the water heat exchanger 2, the first expansion valve 6, the intermediate pressure receiver 5, the second expansion valve 7, the air heat exchanger 1, the four-way valve 4, the compression The refrigerant circulates in the order of the machine 3.

(1) The high-temperature and high-pressure gaseous refrigerant (gas refrigerant) discharged from the compressor 3 flows into the water heat exchanger 2 through the four-way valve 4. The gas refrigerant flowing into the water heat exchanger 2 is condensed and liquefied while dissipating heat in the water heat exchanger 2 functioning as a condenser, and becomes a high-pressure and low-temperature liquid refrigerant (liquid refrigerant). The heat on the load side passing through the water heat exchanger 2 (water flowing through the water circuit 210) is heated by the heat radiation of the refrigerant passing through the water heat exchanger 2.
(2) The high-pressure and low-temperature liquid refrigerant that has exited the water heat exchanger 2 is slightly decompressed by the first expansion valve 6, enters a gas-liquid two-phase state, and flows into the intermediate-pressure receiver 5.
(3) The refrigerant that has flowed into the intermediate-pressure receiver 5 is cooled by applying heat to the low-temperature refrigerant that flows through the suction pipe 11 of the compressor 3 in the intermediate-pressure receiver 5, and becomes a liquid refrigerant (liquid refrigerant). Out of the medium pressure receiver 5.
(4) The liquid refrigerant flowing out from the intermediate pressure receiver 5 is decompressed to a low pressure by the second expansion valve 7 and becomes a two-phase refrigerant. And it flows in into the air heat exchanger 1 which functions as an evaporator, absorbs heat from air in the air heat exchanger 1, evaporates, and is gasified.
(5) The gasified refrigerant passes through the four-way valve 4 from the air heat exchanger 1 and is heated by exchanging heat with the refrigerant in the intermediate pressure receiver 5 in the through portion 12 of the suction pipe 11 and sucked into the compressor 3. Is done.

(Operation during defrosting operation)
During the defrosting operation, the control device 101 sets the four-way valve 4 so as to have a flow path indicated by a broken line in FIG. As described above, the refrigerant flow in the defrosting operation is the reverse cycle (cooling operation).

(1) The high-temperature and high-pressure gas refrigerant discharged from the compressor 3 flows into the air heat exchanger 1 through the four-way valve 4. At this time, the frost is melted by exchanging heat with the frost attached to the air heat exchanger 1, and the refrigerant flows out of the air heat exchanger 1 as a liquid refrigerant. It passes through the second expansion valve 7 to become gas-liquid two-phase, passes through the intermediate pressure receiver 5 to become liquid refrigerant, passes through the first expansion valve 6 to become gas-liquid two-phase, and flows into the water heat exchanger 2 (evaporator).
(2) The refrigerant that has flowed into the water heat exchanger 2 absorbs heat from the water flowing through the water circuit 210 passing through the water heat exchanger 2 in the water heat exchanger 2 and evaporates to become a gas refrigerant. Then, it passes through the four-way valve 4 and the intermediate pressure receiver 5 and returns to the compressor 3 again. The air heat exchanger 1 is defrosted by the circulation of the refrigerant.

(Configuration of water heater 200)
The water heater 200 has a tank 51, a water heat exchanger 2, a pump 53, a booster heater 54, a three-way valve 55 (an example of a branching device), a strainer 56, a flow switch 57, a pressure relief valve 58, and an air vent valve 59. The water circuit 210 is configured by pipe connection. Moreover, it has the control apparatus 201 which performs drive control etc. of actuators, such as the booster heater 54 and the three-way valve 55. A drain outlet 62 for draining the water in the water circuit 210 is provided in the middle of the pipe constituting the water circuit 210.

  The tank 51 is a device that accumulates water therein. The tank 51 contains a coil 61 connected to the water circuit 210. The coil 61 heat-exchanges the water accumulated in the tank 51 by exchanging heat between the water (hot water) circulating in the water circuit 210 and the water accumulated in the tank 51. Further, the tank 51 includes a submerged heater 60. The submerged heater 60 is a heating means for further heating the water accumulated in the tank 51.

  The water in the tank 51 flows into the sanitary circuit side piping 81b connected to, for example, a shower. Further, the sanitary circuit 81a is also provided with a drain port 63. Here, in order to prevent the water accumulated inside the tank 51 from being cooled by the outside air, the tank 51 is covered with a heat insulating material (not shown). Examples of the heat insulating material include felt, cinsalate (registered trademark), VIP (Vacuum Insulation Panel), and the like.

  The pump 53 is a device that applies pressure to the water in the water circuit 210 and circulates the water circuit 210. The booster heater 54 is a device that further heats the water in the water circuit 210 when the heat source device 100 has insufficient heating capability. Furthermore, the three-way valve 55 is a device for branching water in the water circuit 210. For example, the three-way valve 55 switches between flowing the water in the water circuit 210 to the tank 51 side or flowing to the heating circuit side pipe 82b to which a heater such as a radiator and floor heating provided outside is connected. Here, the heating circuit side pipes 82a and 82b are pipes that circulate water with the heater. The strainer 56 is a device that removes scale (sediment) in the water circuit 210. The flow switch 57 is a device for detecting whether or not the flow rate circulating in the water circuit 210 is a certain amount or more.

  The expansion tank 52 is a device for controlling the pressure that changes due to the volume change of the water in the water circuit 210 accompanying heating or the like within a certain range. When the pressure of the water circuit 210 becomes higher than the pressure control range of the expansion tank 52, the water in the water circuit 210 is discharged to the outside by the pressure relief valve 58.

  The pressure relief valve 58 is a protective device. The air vent valve 59 is a device that discharges air generated in the water circuit 210 to the outside, and prevents the pump 53 from idling (air catching). The manual air vent valve 64 is a manual valve for bleeding air from the water circuit 210. For example, it is used when air mixed in the water circuit 210 is removed during water filling during installation work. Since it is basically used at the time of installation, the manual air vent valve 64 may be indoors.

  Since the pressure relief valve 58 and the air vent valve 59 release water and air to the outside as described above, it is desirable that the installation location thereof is not indoor but outdoor. However, the installation is left to the installer.

  FIG. 2 is a diagram showing the control device 201 according to the first embodiment of the present invention. As shown in FIG. 2, the control device 201 includes an external contact terminal 202. An external signal can be received. For example, when the installation person installs the pressure relief valve 58 and the air vent valve 59 outdoors, the installer connects the short-circuit wire 203 to the external contact terminal 202. As a result, the control device 201 can receive a signal indicating that the pressure relief valve 58 and the air vent valve 59 have been installed outdoors. When the control device 201 receives a signal indicating the completion of outdoor installation from the external contact terminal 202, the control device 201 permits the operation of the water heater 200 and the heat source device 100 as having completed the desired construction.

  For example, since the refrigerant circuit 110 and the water circuit 210 are usually independent, the refrigerant and water do not intersect. However, for example, if the water heat exchanger 2 is damaged, there is a possibility that the refrigerant in the refrigerant circuit 110 leaks (mixes) indoors into the water circuit 210 side (because the pressure in the refrigerant circuit 110 is higher) Flows into the circuit 210). By installing the pressure relief valve 58 and the air vent valve 59 outdoors, for example, when flammable refrigerant enters the water circuit, the pressure in the water circuit 210 exceeds the pressure control range of the expansion tank 52. Since the refrigerant can be released from the pressure relief valve 58 and the air vent valve 59 to the outside, safety can be improved.

  The remote controller 301 of this embodiment has a display device 302. The display device 302 of the remote controller 301 of the present embodiment displays that when the control device 201 does not permit the operation in the water heater 200 and the heat source device 100. Thereby, for example, it functions as a notification means that can avoid forgetting to connect the short-circuit line 203 or the like.

  As described above, according to the heat pump water heater 1000 of the first embodiment, the control device 201 includes the external contact terminal 202. When the pressure relief valve 58 and the air vent valve 59 are installed outdoors, for example, the external contact terminal 202 is provided. Is connected to the short-circuit line 203, and the control devices 101 and 201 permit the operation in the water heater 200 and the heat source unit 100 based on the signal from the connection, so that the pressure relief valve 58 and the air vent valve 59 are provided. It can be installed outdoors more reliably. For this reason, normally, in the water heat exchanger 2 in which the refrigerant circuit 110 and the water circuit 210 are isolated, the isolation is destroyed, so that the water circuit 210 side is flammable from the refrigerant circuit 110. Even when refrigerants (R32, HFO, R290, R1270) are mixed, the refrigerant in the water circuit 210 can be surely discharged to the outside, and the refrigerant is not burned indoors, thereby improving safety. Can do.

Embodiment 2. FIG.
FIG. 3 is a diagram showing the configuration of the heat pump cycle apparatus according to Embodiment 2 of the present invention. In the present embodiment, a heat pump water heater 1100 will be described as an example of a heat pump cycle device. In the heat pump water heater 1100 of FIG. 3, the same devices and the like as those in the first embodiment are the same as those described in the first embodiment.

  The water heater 200 of the heat pump water heater 1100 in the present embodiment includes a refrigerant sensor 65. The refrigerant sensor 65 is connected to the control device 101 of the heat source apparatus 100 via the control device 201 of the water heater 200 and the control line 310. The refrigerant sensor 65 is detection means that can detect the same component as the refrigerant circulating in the heat source apparatus 100, and is provided in the vicinity of the pressure relief valve 58 and the air vent valve 59. Then, based on the signal relating to the detection of the refrigerant sensor 65, the control device 101 determines whether water, gas, etc. released from these valves are mixed with components similar to the refrigerant circulating in the heat source device 100. to decide. Here, the description is based on the assumption that the control device 101 performs the determination based on the signal from the refrigerant sensor 65. However, for example, the control device 201 may perform the determination.

  Further, the display device 302 of the remote controller 301 according to the present embodiment serves as an abnormality notification unit that displays an abnormality as a leakage from the refrigerant circuit 110 based on the determination of the control device 101, for example. . Here, the notification is performed by the display device 302 provided in the remote controller 301. However, for example, when the control devices 101 and 201 have the display device, an error message is displayed on these devices. It may be.

  For example, the conventional apparatus does not include means for detecting refrigerant leakage to the hot water heater side (water circuit side) that is often installed indoors. However, for example, when there is a possibility that a flammable refrigerant may leak into the water circuit 210, it is desirable to notify the refrigerant leakage into the water circuit 210 as soon as possible. Therefore, in the heat pump cycle device of the present embodiment, the refrigerant sensor 65 is provided in the vicinity of the pressure relief valve 58 and the air vent valve 59, and a notification is made when the refrigerant sensor 65 detects the refrigerant.

  By providing the refrigerant sensor 65 in the vicinity of the pressure relief valve 58 and the air vent valve 59, it can be determined earlier whether the refrigerant in the refrigerant circuit 110 has leaked into the water circuit 210. The display device 302 can quickly notify the resident, the user, etc. of the refrigerant leak.

  When the control device 101 of the heat source device 100 and the control device 201 of the water heater 200 determine based on the signal from the refrigerant sensor 65 that the refrigerant sensor 65 has detected the same component as the refrigerant circulating in the heat source device 100. Then, the operation of the refrigerant circuit 110 and the water circuit 210 is stopped. Then, a signal is sent to the remote controller 301 to cause the display device 302 to display.

  As described above, according to the heat pump cycle device (heat pump water heater 1100) of the second embodiment, the refrigerant circuit 110 and the water circuit 210 are normally separated by the water heat exchanger 2 that is isolated. Even if a flammable refrigerant (R32, HFO, R290, R1270) leaks to the water circuit 210 due to destruction, the refrigerant sensor 65 can quickly detect it. Further, by displaying on the display device 302 included in the remote controller 301, an abnormality alarm can be issued to the resident (user), and notification can be made quickly. Here, when the control devices 101 and 201 have display means, an abnormality can be displayed. Moreover, you may make it provide the abnormality alerting device by sound, light, etc.

Embodiment 3 FIG.
FIG. 4 is a diagram showing a configuration of a heat pump cycle apparatus according to Embodiment 3 of the present invention. In the present embodiment, a heat pump water heater 1200 will be described as an example of a heat pump cycle device. In the heat pump water heater 1200 of FIG. 4, the same devices and the like as in the first embodiment are the same as those described in the first embodiment.

  The heat source device 100 of the heat pump water heater 1200 in the present embodiment includes a heat source side temperature sensor 10. The heat source side temperature sensor 10 is connected to the control device 101 of the heat source apparatus 100 and is a detection means for detecting the outdoor temperature. Further, it is connected to the control device 201 of the water heater 200 through the control line 310. The hot water heater 200 includes a hot water supply side temperature sensor 66. The hot water supply side temperature sensor 66 is connected to the control device 201 of the water heater 200. The hot water supply side temperature sensor 66 is provided in the vicinity of the pressure relief valve 58 and the air vent valve 59.

  The control device 201 determines whether or not the pressure relief valve 58 and the air vent valve 59 are installed outdoors based on the temperature related to detection by the heat source side temperature sensor 10 and the temperature related to detection by the hot water supply side temperature sensor 66. For example, if it is determined that the temperature difference between the temperature detected by the heat source side temperature sensor 10 and the temperature detected by the hot water supply side temperature sensor 66 is within a predetermined temperature difference, the pressure relief valve 58 and the air vent valve 59 are installed outdoors. Judge that it was done. And similarly to what was demonstrated in Embodiment 1, the control apparatus 201 sends the signal to the effect of permission to the control apparatus 101, and permits the operation | movement in the water heater 200 and the heat-source equipment 100, respectively.

  Here, it is determined whether or not the pressure relief valve 58 and the air vent valve 59 are installed outdoors based on the temperature. However, the present invention is not limited to this. For example, the determination may be based on other physical quantities. it can.

  For example, it is assumed that a light meter is installed in the vicinity of the pressure relief valve 58 and the air vent valve 59, and that, for example, the pressure relief valve 58 and the air vent valve 59 are irradiated with sunlight based on the light amount related to the detection of the light meter. You may make it judge that it was installed outdoors.

  Further, for example, a rain gauge is installed in the vicinity of the pressure relief valve 58 and the air vent valve 59, and the pressure relief valve 58 and the air vent valve 59 are exposed to rain, for example, based on the amount of water detected by the rain gauge. You may make it judge that it was installed in the position.

  Further, for example, an anemometer is installed in the vicinity of the pressure relief valve 58 and the air vent valve 59, and, for example, the pressure relief valve 58 and the air vent valve 59 are exposed to the wind based on the air volume related to detection by the anemometer. You may make it judge that it was installed in the position.

Embodiment 4 FIG.
In each of the above-described embodiments, the example in which both the pressure relief valve 58 and the air vent valve 59 are provided in the water circuit 210 has been described, but the present invention is not limited to this. For example, the present invention can also be applied to the water circuit 210 (the water heater 200) having either the pressure relief valve 58 or the air vent valve 59.

  In the above-described embodiment, the heat pump water heater has been described. However, the present invention is not limited to a heat pump water heater, and can be used for a heat pump cycle device. For example, it can be used for an air conditioner using a heat pump cycle, a chiller system, or the like.

  DESCRIPTION OF SYMBOLS 1 Air heat exchanger, 2 Water heat exchanger, 3 Compressor, 4 Four way valve, 5 Medium pressure receiver, 6 1st expansion valve, 7 2nd expansion valve, 10 Heat source side temperature sensor, 11 Intake pipe, 12 Through part , 51 Tank, 52 Expansion tank, 53 Pump, 54 Booster heater, 55 Three-way valve, 56 Strainer, 57 Flow switch, 58 Pressure relief valve, 59 Air vent valve, 60 Submerged heater, 61 Coil, 62, 63 Drain port, 64 Manual Air vent valve, 65 refrigerant sensor, 66 hot water supply side temperature sensor, 81a, 81b sanitary circuit side piping, 82a, 82b heating circuit side piping, 83 arrow, 100 heat pump heat source machine, 101, 201 control device, 110 refrigerant circuit, 200 hot water supply 202, terminal for external contact, 203 short circuit wire, 210 water circuit, 301 remote control, 02 display device, 310 control line, 1000,1100,1200 heat pump water heater.

Claims (19)

Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
A pump for flowing water exchanged by the water heat exchanger, forming a water circuit for supplying water exchanged with the water heat exchanger, and venting air for discharging air in the water circuit; A water heater having a valve;
A heat pump cycle device comprising: a control device having an external contact terminal for inputting a signal indicating operation permission of the heat pump heat source device and the water heater.   The heat pump cycle device according to claim 1, wherein when the air vent valve is disposed outdoors, the signal is input to the external contact terminal.   3. The heat pump cycle device according to claim 1, wherein when the two external contact terminals are short-circuited by a short-circuit line, the control device permits operation of the heat pump heat source device and the water heater. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
An air vent valve for discharging water in the water circuit, having a pump for flowing water exchanged by the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having
Outdoor temperature detecting means for detecting outdoor temperature;
Hot water supply side temperature detection means for detecting the temperature in the vicinity of the air vent valve;
When it is determined that the temperature difference between the temperature related to the detection by the outdoor temperature detection means and the temperature related to the detection by the hot water supply side temperature detection means is within a predetermined temperature difference, the operation of the heat pump heat source device and the water heater is performed. A heat pump cycle device comprising: a control device that performs a process to permit. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
An air vent valve for discharging water in the water circuit, having a pump for flowing water exchanged by the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having
An air volume detecting means for detecting an air volume in the vicinity of the air vent valve;
A heat pump cycle device comprising: a control device that performs a process of permitting the operation of the heat pump heat source device and the water heater based on the air flow detected by the air flow detection means. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
An air vent valve for discharging water in the water circuit, having a pump for flowing water exchanged by the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having
A light amount detecting means for detecting a light amount in the vicinity of the air vent valve;
A heat pump cycle device comprising: a control device that performs a process of permitting operation of the heat pump heat source device and the water heater based on a light amount related to detection by the light amount detection means. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
An air vent valve for discharging water in the water circuit, having a pump for flowing water exchanged by the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having
Rain detection means for detecting rainfall in the vicinity of the air vent valve;
A heat pump cycle device comprising: a control device that performs a process of permitting the operation of the heat pump heat source device and the water heater based on a rainfall amount detected by the rainfall amount detection means.   The heat pump cycle device according to any one of claims 1 to 7, further comprising refrigerant detection means for detecting the refrigerant in the vicinity of the air vent valve. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
A pressure for adjusting the water pressure in the water circuit, having a pump for flowing the water heat-exchanged in the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having a relief valve;
A heat pump cycle device comprising: a control device having an external contact terminal for inputting a signal indicating operation permission of the heat pump heat source device and the water heater.   The heat pump cycle device according to claim 9, wherein when the pressure relief valve is disposed outdoors, the signal is input to the external contact terminal.   The heat pump cycle device according to claim 9 or 10, wherein when the two external contact terminals are short-circuited by a short-circuit line, the control device permits the operation of the heat pump heat source device and the water heater. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
A pressure for adjusting the water pressure in the water circuit, having a pump for flowing the water heat-exchanged in the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having a relief valve;
Outdoor temperature detecting means for detecting outdoor temperature;
Hot water supply side temperature detection means for detecting the temperature in the vicinity of the pressure relief valve;
When it is determined that the temperature difference between the temperature related to the detection by the outdoor temperature detection means and the temperature related to the detection by the hot water supply side temperature detection means is within a predetermined temperature difference, the operation of the heat pump heat source device and the water heater is performed. A heat pump cycle device comprising: a control device that performs a process to permit. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
A pressure for adjusting the water pressure in the water circuit, having a pump for flowing the water heat-exchanged in the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having a relief valve;
An air volume detecting means for detecting an air volume in the vicinity of the pressure relief valve;
A heat pump cycle device comprising: a control device that performs a process of permitting the operation of the heat pump heat source device and the water heater based on the air flow detected by the air flow detection means. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
A pressure for adjusting the water pressure in the water circuit, having a pump for flowing the water heat-exchanged in the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having a relief valve;
A light amount detecting means for detecting a light amount in the vicinity of the pressure relief valve;
A heat pump cycle device comprising: a control device that performs a process of permitting operation of the heat pump heat source device and the water heater based on a light amount related to detection by the light amount detection means. Compressor for compressing refrigerant, air heat exchanger for exchanging heat between air and refrigerant, water heat exchanger for exchanging heat between refrigerant and water, and throttle for adjusting pressure of refrigerant flowing through the water heat exchanger A heat pump heat source machine that configures a refrigerant circuit by pipe connecting the devices;
A pressure for adjusting the water pressure in the water circuit, having a pump for flowing the water heat-exchanged in the water heat exchanger, constituting a water circuit for supplying water exchanged with the water heat exchanger A water heater having a relief valve;
Rainfall detection means for detecting rainfall in the vicinity of the pressure relief valve;
A heat pump cycle device comprising: a control device that performs a process of permitting the operation of the heat pump heat source device and the water heater based on a rainfall amount detected by the rainfall amount detection means.   The heat pump cycle device according to any one of claims 9 to 15, further comprising refrigerant detection means for detecting the refrigerant in the vicinity of the pressure relief valve.   The heat pump cycle device according to claim 8 or 16, wherein when the refrigerant detection means determines that the refrigerant is detected, the control device prohibits the operation of the heat pump heat source device and the water heater. Further comprising a notification means,
18. The heat pump cycle device according to claim 17, wherein when the operation is prohibited, the control device causes the notification means to notify that the operation is prohibited. Further comprising a notification means,
The heat pump cycle device according to any one of claims 1 to 18, wherein when the operation is not permitted, the control device informs the notification means that the operation is not permitted.

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