WO2012032680A1 - 冷凍サイクル装置 - Google Patents
冷凍サイクル装置 Download PDFInfo
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- WO2012032680A1 WO2012032680A1 PCT/JP2011/001238 JP2011001238W WO2012032680A1 WO 2012032680 A1 WO2012032680 A1 WO 2012032680A1 JP 2011001238 W JP2011001238 W JP 2011001238W WO 2012032680 A1 WO2012032680 A1 WO 2012032680A1
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- heat
- heat storage
- heat exchanger
- storage material
- compressor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/24—Storage receiver heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Definitions
- the present invention relates to a compressor, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger connected via a refrigerant pipe, a heat storage material that stores heat generated by the compressor, and heat and refrigerant stored in the heat storage material.
- the present invention relates to a refrigeration cycle apparatus including a heat storage device having a heat storage heat exchanger that exchanges heat with the heat storage device.
- Patent Document 1 a heat storage tank is provided in the compressor provided in the outdoor unit, and what is defrosted using the waste heat of the compressor stored in the heat storage tank during heating operation has been proposed (for example, Patent Document 1).
- FIG. 6 shows an example of a refrigeration cycle apparatus that employs such a defrosting method.
- the compressor 100, the four-way valve 102, the outdoor heat exchanger 104, the capillary tube 106, the indoor unit provided in the outdoor unit are shown. Is connected to the indoor heat exchanger 108 provided by the refrigerant pipe, the first bypass circuit 110 for bypassing the capillary tube 106, and the discharge side of the compressor 100 to the indoor heat exchanger 108 via the four-way valve 102.
- a second bypass circuit 112 is provided in which one end is connected to the connecting pipe and the other end is connected to the pipe extending from the capillary tube 106 to the outdoor heat exchanger 104.
- the first bypass circuit 110 is provided with a two-way valve 114, a check valve 116, and a heat storage heat exchanger 118, and the second bypass circuit 112 is provided with a two-way valve 120 and a check valve 122. Yes.
- a heat storage tank 124 is provided around the compressor 100, and the heat storage tank 124 is filled with a latent heat storage material 126 for exchanging heat with the heat storage heat exchanger 118.
- An accumulator 128 for separating the liquid-phase refrigerant and the gas-phase refrigerant is provided at the suction port of the compressor 100.
- the two two-way valves 114 and 120 are controlled to open, a part of the refrigerant discharged from the compressor 100 flows to the second bypass circuit 112, and the remaining refrigerant is the four-way valve. 102 and the indoor heat exchanger 108.
- a small amount of refrigerant flows to the outdoor heat exchanger 104 through the capillary tube 106, while the remaining most of the refrigerant passes through the first bypass circuit.
- the heat storage heat exchanger 118 flows into the heat storage heat exchanger 118 through the two-way valve 114, takes heat from the heat storage material 126, passes through the check valve 116, and then merges with the refrigerant that has passed through the capillary tube 106 to the outdoor. It flows to the heat exchanger 104. After that, it merges with the refrigerant flowing through the second bypass circuit 112 at the inlet of the outdoor heat exchanger 104, defrosts using the heat of the refrigerant, passes through the four-way valve 102, and then passes through the accumulator 128. And sucked into the compressor 100.
- the hot gas discharged from the compressor 100 during defrosting is guided to the outdoor heat exchanger 104 and the pressure of the refrigerant flowing into the outdoor heat exchanger 104 Therefore, the defrosting ability can be increased, and the defrosting can be completed in a very short time.
- outdoor heat exchange is performed between the refrigerant discharged from the compressor 100 and the refrigerant that has taken away the heat accumulated in the heat storage material 126 when passing through the heat storage heat exchanger 118.
- the defrosting operation of the outdoor heat exchanger 104 is performed by being supplied to the cooler 104. Therefore, in a case where sufficient heat is not accumulated in the heat storage material 126, there may be a case where the defrosting operation of the outdoor heat exchanger 104 cannot be performed.
- an object of the present invention is to provide a refrigeration cycle apparatus capable of reliably performing the defrosting operation of the outdoor heat exchanger in order to solve the above problems.
- a refrigeration cycle apparatus of the present invention accumulates heat generated by a compressor, an indoor heat exchanger, an expansion valve and an outdoor heat exchanger connected via a refrigerant pipe.
- a refrigeration cycle device comprising a heat storage material and a heat storage device having a heat storage heat exchanger that exchanges heat between the heat stored in the heat storage material and the refrigerant, wherein the heat storage device heats the heat storage material auxiliary
- An auxiliary heating device using electricity is further provided.
- the refrigeration cycle apparatus of the present invention includes a compressor, an indoor heat exchanger connected to the compressor, an expansion valve connected to the indoor heat exchanger, an outdoor heat exchanger connected to the expansion valve, A refrigeration cycle apparatus in which an outdoor heat exchanger and a compressor are connected to each other, arranged so as to surround the compressor, and a heat storage material for storing heat generated by the compressor, and stored in the heat storage material.
- a heat storage device having a heat storage heat exchanger that exchanges heat with heat is further provided, and during the defrosting operation of the outdoor heat exchanger, the refrigerant discharged from the compressor is guided to the outdoor heat exchanger and is passed through the indoor heat exchanger.
- the apparatus further includes an auxiliary heating device using electricity for auxiliary heating of the heat storage material. It is.
- the heat storage device since the heat storage device includes an auxiliary heating device that uses electricity to supplementarily heat the heat storage material, the defrosting operation is performed only with the waste heat received from the compressor.
- the auxiliary heat device can provide the heat storage material with insufficient heat. Therefore, in the refrigeration cycle apparatus, the defrosting operation of the outdoor heat exchanger can be reliably performed.
- the first invention relates to a compressor, an indoor heat exchanger, an expansion valve and an outdoor heat exchanger connected via a refrigerant pipe, a heat storage material for storing heat generated by the compressor, and heat stored in the heat storage material.
- a heat storage device having a heat storage heat exchanger for exchanging heat between the refrigerant and the refrigerant, wherein the heat storage device further includes an auxiliary heating device using electricity for auxiliary heating of the heat storage material ing.
- the auxiliary heating device can supply the heat storage material with the insufficient heat.
- the defrosting operation of the outdoor heat exchanger can be reliably performed.
- a second invention includes a compressor, an indoor heat exchanger connected to the compressor, an expansion valve connected to the indoor heat exchanger, and an outdoor heat exchanger connected to the expansion valve.
- a refrigeration cycle apparatus in which a heat exchanger and a compressor are connected, and is arranged so as to surround the compressor, and heat is generated by a heat storage material that stores heat generated by the compressor and heat stored in the heat storage material.
- a heat storage device having a heat storage heat exchanger that performs the exchange is further provided, and during the defrosting operation of the outdoor heat exchanger, the refrigerant discharged from the compressor is guided to the outdoor heat exchanger and the heat storage heat exchange is performed via the indoor heat exchanger.
- the refrigerant after passing through the outdoor heat exchanger and the refrigerant heat-exchanged with the heat storage material in the heat storage heat exchanger are joined together and guided to the suction side of the compressor. It further includes an auxiliary heating device using electricity for auxiliary heating of the material.
- the auxiliary heating device can supply the heat storage material with the insufficient heat.
- the defrosting operation of the outdoor heat exchanger can be reliably performed.
- the heat storage device further includes a heat storage tank for storing the liquid as a heat storage material.
- the amount of heat required for the defrosting operation can be accumulated and a reliable defrosting operation can be performed.
- the metal material is used as the heat storage material, boiling caused by heating the liquid when the liquid is used as the heat storage material Such a phenomenon does not occur, and heat can be accumulated using a large temperature difference by utilizing the temperature resistance characteristic of the metal, so that the apparatus can be miniaturized.
- a refrigerant in which heat accumulated in the heat storage material is heat-exchanged via the heat storage heat exchanger is used as the outdoor heat.
- the controller further includes a controller that starts the defrosting operation of the outdoor heat exchanger by circulating the heat exchanger, and a heat storage material temperature sensor that detects a temperature of the heat storage material, and the controller includes the heat storage material temperature sensor. Based on the detected temperature, heating of the heat storage material by the auxiliary heating device is started before the defrosting operation is started.
- the controller determines whether or not the heat storage amount for the defrosting operation is insufficient based on the temperature of the heat storage material detected by the heat storage material temperature sensor, and the auxiliary heating device The heating operation can be performed as necessary, and the heat storage material can be efficiently heated for the defrosting operation.
- FIG. 1 shows a configuration of an air conditioner including a refrigeration cycle apparatus according to Embodiment 1 of the present invention.
- the air conditioner includes an outdoor unit 2 and an indoor unit 4 that are connected to each other by refrigerant piping. It is configured.
- a compressor 6, a four-way valve 8, a strainer 10, an expansion valve 12, and an outdoor heat exchanger 14 are provided inside the outdoor unit 2.
- a heat exchanger 16 is provided, and these are connected to each other via a refrigerant pipe to constitute a refrigeration cycle.
- the compressor 6 and the indoor heat exchanger 16 are connected via a first pipe 18 provided with a four-way valve 8, and the indoor heat exchanger 16 and the expansion valve 12 are provided with a strainer 10.
- the second pipe 20 is connected.
- the expansion valve 12 and the outdoor heat exchanger 14 are connected via a third pipe 22, and the outdoor heat exchanger 14 and the compressor 6 are connected via a fourth pipe 24.
- a four-way valve 8 is disposed in the middle of the fourth pipe 24, and an accumulator 26 for separating the liquid-phase refrigerant and the gas-phase refrigerant is provided in the fourth pipe 24 on the refrigerant suction side of the compressor 6. ing.
- the compressor 6 and the third pipe 22 are connected via a fifth pipe 28, and the first solenoid valve 30 is provided in the fifth pipe 28.
- a heat storage tank 32 is provided around the compressor 6, and a heat storage heat exchanger 34 is provided inside the heat storage tank 32, and a heat storage material (for example, liquid is exchanged) for heat exchange with the heat storage heat exchanger 34.
- a heat storage material for example, liquid is exchanged
- an ethylene glycol aqueous solution is used as an example.
- the heat storage device 50 includes an electric heater 52 as an auxiliary heating device for heating the heat storage material 36.
- the electric heater 52 is disposed inside the heat storage tank 32 so as to be immersed in the heat storage material 36 accommodated in the heat storage tank 32.
- the electric heater 52 is an auxiliary heating device for supplementing the amount of heat stored in the heat storage material 36 that is insufficient for the amount of heat stored necessary for the defrosting operation, and the refrigeration cycle.
- the capacity of the electric heater 52 may be set so as to compensate for the shortage of the heat storage amount in consideration of the installation / operating environment of the apparatus (for example, installation in a cold region).
- the heat storage tank 32 is provided with a heat storage material temperature sensor 46 that detects the temperature of the heat storage material 36.
- the second pipe 20 and the heat storage heat exchanger 34 are connected via a sixth pipe 38, the heat storage heat exchanger 34 and the fourth pipe 24 are connected via a seventh pipe 40, and the sixth pipe 38. Is provided with a second electromagnetic valve 42.
- an air blower fan (not shown), upper and lower blades (not shown), and left and right blades (not shown) are provided inside the indoor unit 4, and indoor heat exchange is performed.
- the unit 16 exchanges heat between the indoor air sucked into the interior of the indoor unit 4 by the blower fan and the refrigerant flowing through the interior of the indoor heat exchanger 16, and blows out the air heated by heat exchange into the room during heating.
- air cooled by heat exchange is blown into the room during cooling.
- the upper and lower blades change the direction of air blown from the indoor unit 4 up and down as necessary, and the left and right blades change the direction of air blown from the indoor unit 4 to right and left as needed.
- the compressor 6, the blower fan, the upper and lower blades, the left and right blades, the four-way valve 8, the expansion valve 12, the electromagnetic valves 30, 42 and the like are electrically connected to a controller 48 (for example, a microcomputer).
- the operation or operation of the left and right blades, the four-way valve 8 and the expansion valve 12 is controlled based on a control signal from the controller 48, and the two electromagnetic valves 30 and 42 are opened and closed based on the control signal from the controller 48.
- the temperature of the heat storage material 36 detected by the heat storage material temperature sensor 46 can be input to the controller 48, and the electric heater 52 is electrically connected to the controller 48, and the operation or operation of the electric heater 52 is performed. Control is performed based on a control signal from the controller 48.
- the refrigerant discharged from the discharge port of the compressor 6 passes from the four-way valve 8 to the indoor heat exchanger 16 through the first pipe 18.
- the refrigerant condensed by exchanging heat with the indoor air in the indoor heat exchanger 16 passes through the second pipe 20 through the indoor heat exchanger 16, expands through the strainer 10 that prevents foreign matter from entering the expansion valve 12.
- To valve 12. The refrigerant decompressed by the expansion valve 12 reaches the outdoor heat exchanger 14 through the third pipe 22, and the refrigerant evaporated by exchanging heat with the outdoor air in the outdoor heat exchanger 14 is the fourth pipe 24 and the four-way valve 8. And returns to the suction port of the compressor 6 through the accumulator 26.
- the fifth pipe 28 branched from the compressor 6 discharge port of the first pipe 18 and the four-way valve 8 is connected to the expansion valve 12 of the third pipe 22 and the outdoor heat exchanger 14 via the first electromagnetic valve 30. I am joining in between.
- the heat storage tank 32 in which the heat storage material 36 and the heat storage heat exchanger 34 are housed is disposed so as to be in contact with and surround the compressor 6, and the heat generated in the compressor 6 is accumulated in the heat storage material 36, and the second The sixth pipe 38 branched from the pipe 20 between the indoor heat exchanger 16 and the strainer 10 reaches the inlet of the heat storage heat exchanger 34 via the second electromagnetic valve 42 and exits from the outlet of the heat storage heat exchanger 34.
- the seventh pipe 40 joins between the four-way valve 8 and the accumulator 26 in the fourth pipe 24.
- the strainer 10 is disposed between the diversion portion of the second pipe 20 and the sixth pipe 38 and the expansion valve 12, but the indoor heat exchanger 16 and the sixth pipe 38 in the second pipe 20 Even if it arrange
- FIG. 2 schematically showing the operation during normal heating and the flow of the refrigerant of the air conditioner shown in FIG.
- the first electromagnetic valve 30 and the second electromagnetic valve 42 are controlled to be closed, and the refrigerant discharged from the discharge port of the compressor 6 as described above passes through the first pipe 18 and the four-way valve 8.
- the indoor heat exchanger 16 The refrigerant condensed by exchanging heat with the indoor air in the indoor heat exchanger 16 exits the indoor heat exchanger 16, passes through the second pipe 20, reaches the expansion valve 12, and the refrigerant decompressed by the expansion valve 12 is the third refrigerant. It reaches the outdoor heat exchanger 14 through the pipe 22.
- the refrigerant evaporated by exchanging heat with outdoor air in the outdoor heat exchanger 14 returns from the four-way valve 8 to the suction port of the compressor 6 through the fourth pipe 24.
- the heat generated in the compressor 6 is accumulated in the heat storage material 36 housed in the heat storage tank 32 from the outer wall of the compressor 6 through the outer wall of the heat storage tank 32.
- FIG. 3 schematically showing the flow of refrigerant.
- the solid line arrows indicate the flow of the refrigerant used for heating
- the broken line arrows indicate the flow of the refrigerant used for defrosting.
- the air conditioner according to the present invention is provided with a temperature sensor 44 that detects the piping temperature of the outdoor heat exchanger 14, and the evaporation temperature is lower than that during non-frosting. When this is detected by the temperature sensor 44, an instruction from the normal heating operation to the defrosting / heating operation is output from the controller 48.
- the first electromagnetic valve 30 and the second electromagnetic valve 42 are controlled to open, and in addition to the refrigerant flow during the normal heating operation described above, the first solenoid valve 30 and the second electromagnetic valve 42 are discharged from the discharge port of the compressor 6. After a part of the vapor-phase refrigerant passes through the fifth pipe 28 and the first electromagnetic valve 30 and merges with the refrigerant passing through the third pipe 22, the outdoor heat exchanger 14 is heated, condensed, and converted into a liquid phase. Through the fourth pipe 24, the four-way valve 8 and the accumulator 26 are returned to the suction port of the compressor 6.
- a part of the liquid-phase refrigerant that is divided between the indoor heat exchanger 16 and the strainer 10 in the second pipe 20 passes through the sixth pipe 38 and the second electromagnetic valve 42, and then is stored in the heat storage material 36 in the heat storage heat exchanger 34. From the accumulator 26 and returns to the suction port of the compressor 6 through the seventh pipe 40 and the refrigerant that passes through the fourth pipe 24.
- the refrigerant returning to the accumulator 26 includes the liquid phase refrigerant returning from the outdoor heat exchanger 14. By mixing this with the high-temperature gas phase refrigerant returning from the heat storage heat exchanger 34, The evaporation of the phase refrigerant is promoted, and the liquid phase refrigerant does not return to the compressor 6 through the accumulator 26, so that the reliability of the compressor 6 can be improved.
- the temperature of the outdoor heat exchanger 14 that has become below freezing due to the attachment of frost at the start of defrosting and heating is heated by the gas-phase refrigerant discharged from the discharge port of the compressor 6, and the frost is melted near zero degrees.
- the temperature of the outdoor heat exchanger 14 begins to rise again.
- the temperature sensor 44 detects the temperature rise of the outdoor heat exchanger 14, it is determined that the defrosting is completed, and an instruction from the defrosting / heating operation to the normal heating operation is output from the controller 48.
- step S1 of the flowchart of FIG. 4 it is determined by the controller 48 whether it is necessary to perform the defrosting operation (defrosting / heating operation) of the outdoor heat exchanger 14. Specifically, when the piping temperature (evaporation temperature) of the outdoor heat exchanger 14 is detected by the temperature sensor 44 and the detected temperature falls below a preset predetermined temperature, the controller 48 performs the defrosting / heating operation. It is judged that implementation of is necessary.
- step S2 the heat storage amount of the heat storage material 36 of the heat storage device 50 is insufficient for the heat amount necessary for performing the defrosting operation. It is judged by the controller 48 whether it is not. Specifically, the temperature of the heat storage material 36 is detected by the heat storage material temperature sensor 46, and the amount of heat (heat storage amount) accumulated in the heat storage material 36 is calculated by the controller 48 based on this detected temperature.
- controller 48 information on the amount of heat necessary for carrying out the defrosting operation is stored, and the amount of heat stored and the amount of heat necessary for carrying out the defrosting operation are compared to calculate the insufficient amount of heat, The heating temperature of the heat storage material 36 for supplementing the shortage of heat is set.
- controller 48 compares the detected temperature of the heat storage material 36 with a preset temperature at which the amount of heat necessary for performing the defrosting operation can be secured, instead of calculating the amount of heat in this way. By doing so, you may make it determine the heating temperature of the thermal storage material 36.
- step S2 When it is determined in step S2 that the heat storage amount of the heat storage material 36 is insufficient, the heating operation of the heat storage material 36 by the electric heater 52 is performed in step S3. During the heating operation, the temperature of the heat storage material 36 is detected by the heat storage material temperature sensor 46, and the heating operation by the electric heater 52 is continued until the heating temperature (set temperature) set by the controller 48 is reached. (Step S4).
- step S4 the defrosting / heating operation is started in step S5, and the heat accumulated in the heat storage material 36 is being used.
- the outdoor heat exchanger 14 is defrosted by the gas-phase refrigerant discharged from the discharge port of the compressor 6.
- the heater 52 is stopped when the defrosting / heating operation is started, but the heater 52 may be operated when further heating of the heat storage material 36 is necessary.
- step S2 If it is determined in step S2 that the amount of heat necessary for performing the defrosting operation is accumulated in the heat storage material 36, the defrosting / defrosting in step S5 is performed without performing the heating operation of the electric heater 52. Heating operation is performed.
- the defrosting operation is performed only with the waste heat received from the compressor 6.
- the heat storage material 36 can be provided with insufficient heat by the operation of the electric heater 52. Therefore, in the refrigeration cycle apparatus, the defrosting operation of the outdoor heat exchanger can be reliably performed.
- Such a heating operation of the heat storage material 36 by the electric heater 52 is performed only when the controller 48 determines whether or not the heat storage amount of the heat storage material 36 is insufficient immediately before starting the defrosting operation and is insufficient. Done. Therefore, efficient use of energy can be achieved.
- FIG. 5 shows a configuration of an air conditioner including the refrigeration cycle apparatus according to Embodiment 2 of the present invention. Only differences from the first embodiment will be described below. In FIG. 5, the controller 48 is not shown.
- a metal material for example, aluminum
- electricity for heating the metal material heat storage material 136 is used.
- a heater 52 is provided.
- the liquid near the electric heater 52 may boil by heating, and the heat storage material 36 is evaporated and accommodated by boiling. The amount can be reduced.
- a metal material as the heat storage material 136 as in the second embodiment, the problem of liquid boiling does not occur.
- the specific heat of a metal material such as aluminum is smaller than that of a liquid such as water
- the heating temperature by the electric heater 52 can be set higher due to the temperature resistance characteristic of the metal material. Therefore, the temperature difference of the heat storage material 136 can be set large, and thereby the necessary heat storage amount can be ensured. Moreover, the size of the heat storage material 136 can be reduced by setting a large temperature difference in this way. Further, when a metal material is used as the heat storage material 136, a heat storage tank is not necessary, and therefore further downsizing can be achieved.
- the heat storage tank 32 that stores liquid as the heat storage material 36 it is preferable to use a highly airtight tank in order to suppress a reduction in the amount of liquid stored due to evaporation of the liquid by heating of the electric heater 52.
- a material for forming the heat storage tank 32 a resin material and a metal material are conceivable.
- a metal material from the viewpoint of ensuring airtightness.
- the electric heater 52 should just be the arrangement
- a heating device using electricity other than the electric heater may be employed, for example, a heating device using electromagnetic induction may be employed.
- the refrigeration cycle apparatus of the present invention which supplements the heat storage amount that is deficient by supplementarily heating the heat storage material, is not limited to the refrigeration cycle as shown in FIG.
- the present invention can also be applied to an apparatus using a refrigeration cycle. For example, you may apply the structure of this invention of heating a heat storage material auxiliary with respect to the conventional refrigeration cycle apparatus shown in FIG.
- the refrigeration cycle apparatus can supplement the shortage of heat accumulated in the heat storage material, the defrosting operation can be performed reliably, so that the air conditioner, refrigerator, water heater, heat pump Useful for type washing machines.
Abstract
Description
図1は、本発明の実施の形態1に係る冷凍サイクル装置を備えた空気調和機の構成を示しており、空気調和機は、冷媒配管で互いに接続された室外機2と室内機4とで構成されている。
図5は、本発明の実施の形態2に係る冷凍サイクル装置を備えた空気調和機の構成を示している。以下に実施の形態1との相違点についてのみ説明する。なお、図5では、コントローラ48の図示を省略している。
10 ストレーナ、 12 膨張弁、 14 室外熱交換器、
16 室内熱交換器、 18 第1配管、 20 第2配管、
22 第3配管、 24 第4配管、 26 アキュームレータ、
28 第5配管、 30 第1電磁弁、 32 蓄熱槽、
34 蓄熱熱交換器、 36,136 蓄熱材、 38 第6配管、
40 第7配管、 42 第2電磁弁、 44 温度センサ、
46 蓄熱材温度センサ、 48 コントローラ、
50,150 蓄熱装置、 52 電気ヒータ。
Claims (5)
- 冷媒配管を介して接続された圧縮機、室内熱交換器、膨張弁および室外熱交換器と、前記圧縮機で発生した熱を蓄積する蓄熱材および前記蓄熱材に蓄積された熱と冷媒との間で熱交換を行う蓄熱熱交換器を有する蓄熱装置とを備える冷凍サイクル装置であって、
前記蓄熱装置は、前記蓄熱材を補助的に加熱する電気を用いた補助加熱装置をさらに備える、冷凍サイクル装置。 - 圧縮機と、前記圧縮機に接続された室内熱交換器と、前記室内熱交換器と接続された膨張弁と、前記膨張弁と接続された室外熱交換器と、を備え、前記室外熱交換器と前記圧縮機とが接続された冷凍サイクル装置であって、
前記圧縮機を囲むように配置され、前記圧縮機で発生した熱を蓄熱する蓄熱材と、前記蓄熱材に蓄熱された熱とで熱交換を行う蓄熱熱交換器を有する蓄熱装置をさらに備え、
前記室外熱交換器の除霜運転時には、前記圧縮機の吐出冷媒が前記室外熱交換器に導かれるとともに、前記室内熱交換器を介して前記蓄熱熱交換器に導かれ、前記室外熱交換器を通った後の冷媒と、前記蓄熱熱交換器で前記蓄熱材と熱交換された冷媒と、が合流して前記圧縮機の吸入側に導かれ、
前記蓄熱装置は、前記蓄熱材を補助的に加熱する電気を用いた補助加熱装置をさらに備える、冷凍サイクル装置。 - 前記蓄熱装置は、液体を前記蓄熱材として収容する蓄熱槽をさらに備える、請求項1または2に記載の冷凍サイクル装置。
- 前記蓄熱装置において、前記蓄熱材として金属材料が用いられる、請求項1または2に記載の冷凍サイクル装置。
- 前記蓄熱材に蓄積された熱が前記蓄熱熱交換器を介して熱交換された冷媒を、前記室外熱交換器に循環させることで、前記室外熱交換器の除霜運転を開始させるコントローラと、
前記蓄熱材の温度を検出する蓄熱材温度センサとをさらに備え、
前記コントローラは、前記蓄熱材温度センサが検出した温度に基づいて、前記除霜運転を開始する前に前記補助加熱装置による前記蓄熱材の加熱を開始させる、請求項1から4のいずれか1つに記載の冷凍サイクル装置。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103423927A (zh) * | 2012-05-15 | 2013-12-04 | 约克广州空调冷冻设备有限公司 | 用于空气源热泵系统的除霜方法 |
JP2014211283A (ja) * | 2013-04-19 | 2014-11-13 | 株式会社東芝 | 冷凍サイクル装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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CN111503823A (zh) * | 2020-04-29 | 2020-08-07 | 广东美的制冷设备有限公司 | 空调系统的控制方法和空调系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60245968A (ja) * | 1984-05-18 | 1985-12-05 | 松下電器産業株式会社 | 空気調和機 |
JPH01306785A (ja) * | 1988-06-03 | 1989-12-11 | Daikin Ind Ltd | 空気調和機 |
JPH0331666A (ja) * | 1989-06-28 | 1991-02-12 | Matsushita Electric Ind Co Ltd | ヒートポンプ式空気調和機 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0331666Y2 (ja) | 1985-12-05 | 1991-07-04 | ||
JP2748960B2 (ja) * | 1989-08-31 | 1998-05-13 | 松下冷機株式会社 | 蓄熱空調システム |
JPH04270876A (ja) * | 1991-02-27 | 1992-09-28 | Matsushita Electric Ind Co Ltd | ヒートポンプ式空気調和機の除霜制御装置 |
JP2000291985A (ja) * | 1999-04-07 | 2000-10-20 | Daikin Ind Ltd | 空気調和装置 |
JP2002061967A (ja) * | 2000-08-17 | 2002-02-28 | Matsushita Refrig Co Ltd | 空気調和機 |
-
2010
- 2010-09-09 JP JP2010202488A patent/JP5238001B2/ja active Active
-
2011
- 2011-03-03 CN CN201180001938.XA patent/CN102523754B/zh active Active
- 2011-03-03 WO PCT/JP2011/001238 patent/WO2012032680A1/ja active Application Filing
- 2011-03-03 KR KR1020117025692A patent/KR101726008B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60245968A (ja) * | 1984-05-18 | 1985-12-05 | 松下電器産業株式会社 | 空気調和機 |
JPH01306785A (ja) * | 1988-06-03 | 1989-12-11 | Daikin Ind Ltd | 空気調和機 |
JPH0331666A (ja) * | 1989-06-28 | 1991-02-12 | Matsushita Electric Ind Co Ltd | ヒートポンプ式空気調和機 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103423927A (zh) * | 2012-05-15 | 2013-12-04 | 约克广州空调冷冻设备有限公司 | 用于空气源热泵系统的除霜方法 |
CN103423927B (zh) * | 2012-05-15 | 2016-05-11 | 约克广州空调冷冻设备有限公司 | 用于空气源热泵系统的除霜方法 |
JP2014211283A (ja) * | 2013-04-19 | 2014-11-13 | 株式会社東芝 | 冷凍サイクル装置 |
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