WO2018168491A1 - ヒートポンプシステム - Google Patents
ヒートポンプシステム Download PDFInfo
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- WO2018168491A1 WO2018168491A1 PCT/JP2018/007764 JP2018007764W WO2018168491A1 WO 2018168491 A1 WO2018168491 A1 WO 2018168491A1 JP 2018007764 W JP2018007764 W JP 2018007764W WO 2018168491 A1 WO2018168491 A1 WO 2018168491A1
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- engine
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F25B27/00—Machines, plants or systems, using particular sources of energy
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
- F24F11/47—Responding to energy costs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- F25B31/00—Compressor arrangements
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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
- F25B31/00—Compressor arrangements
- F25B31/02—Compressor arrangements of motor-compressor units
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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
- F25B2327/00—Refrigeration system using an engine for driving a compressor
- F25B2327/001—Refrigeration system using an engine for driving a compressor of the internal combustion type
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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
- F25B2400/06—Several compression cycles arranged in parallel
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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
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
Definitions
- the present invention includes, as a compressor of a refrigerant circuit in which a refrigerant circulates, an engine-driven compressor that is driven by an engine and compresses the refrigerant, and an electric motor-driven compressor that is driven by an electric motor and compresses the refrigerant.
- the present invention relates to a heat pump system including an operation control unit and a power supply unit that converts commercial power into operating power and supplies the operating power to the operation control unit.
- an engine-driven heat pump system including an engine-driven compressor driven by an engine and using the engine as a drive source of the compressor (Hereinafter sometimes referred to as “GHP”), or an electric motor drive type heat pump system (hereinafter referred to as “EHP”) that includes an electric motor drive compressor driven by an electric motor and uses the electric motor as a drive source of the compressor. Is widely used.
- a so-called hybrid heat pump system includes an engine-driven compressor and an electric motor-driven compressor and can use both the engine and the electric motor as drive sources for the compressor (for example, see Patent Document 1). reference.).
- Such a hybrid heat pump system is attracting attention as being capable of optimizing energy cost, environmental load, convenience, and the like by controlling the operation balance of an engine-driven compressor and an electric motor-driven compressor, for example.
- the main problem of the present invention is a so-called hybrid type compressor having both an engine-driven compressor driven by an engine and an electric motor-driven compressor driven by an electric motor as a compressor of a refrigerant circuit.
- the refrigerant circuit continues to operate even if one of the engine and the electric motor stops abnormally due to a fault such as leakage or failure. This is to provide a technology capable of realizing a configuration with redundancy that can be achieved.
- a first characteristic configuration of the present invention is an engine-driven compressor that is driven by an engine and compresses the refrigerant, and an electric motor-driven compressor that is driven by an electric motor and compresses the refrigerant as a compressor of a refrigerant circuit in which the refrigerant circulates
- a heat pump system including an operation control unit and a power supply unit that converts commercial power into operating power and supplies the operating power to the operation control unit, As the operation control unit, an engine control unit that performs operation control of the engine, and an electric motor control unit that performs operation control of the electric motor,
- the power source unit includes an engine side power source unit that supplies operating power to the engine control unit and an electric motor side power source unit that supplies operating power to the electric motor control unit in parallel.
- the second characteristic configuration of the present invention is that commercial power is distributed and supplied to each of the engine-side power supply unit and the electric motor-side power supply unit through separate leakage breakers.
- the leakage breaker connected to one of the engine-side power supply unit and the electric motor-side power supply unit operates to stop the supply of commercial power to the one-side power supply unit. Even in this case, it is possible to eliminate the influence on the power supply unit on the other side and continue supplying commercial power to the power supply unit on the other side. Accordingly, even when one of the engine and the electric motor is stopped by the operation of the earth leakage breaker, only the compressor driven by the other of the engine and the electric motor is operated to compress the refrigerant, and the operation of the refrigerant circuit is performed. Can continue.
- a third characteristic configuration of the present invention includes: an engine side circuit unit having the engine control unit and the engine side power source unit; and an electric motor side circuit unit having the electric motor control unit and the electric motor side power source unit.
- the other circuit unit is configured to be detachable with respect to one circuit unit.
- the electric motor side circuit unit is detachable from the engine side circuit unit, or the engine circuit unit is detachable from the electric motor side circuit unit. Therefore, by mounting the engine side circuit unit and the electric motor side circuit unit, an operation control unit and a power supply unit for a hybrid heat pump system that combines an engine-driven heat pump system and an electric motor-driven heat pump system. Can be built. Further, by removing the electric motor side circuit section from the operation control section and power supply section for the hybrid heat pump system, the operation control section and power supply section for the engine-driven heat pump system can be constructed.
- the operation control unit and power supply unit for the electric motor drive type heat pump system can be constructed.
- a fourth characteristic configuration of the present invention is that the engine-driven compressor and the electric motor-driven compressor are connected in parallel in the refrigerant circuit.
- the engine-driven compressor and the electric motor-driven compressor are connected in parallel in the refrigerant circuit.
- the heat pump system shown in FIG. 1 includes a refrigerant circuit 10 in which a refrigerant circulates.
- the refrigerant circuit 10 compresses the gas-phase refrigerant with the compressor 11, condenses it with the condenser, releases the condensation heat from the refrigerant into the air, and expands the condensed liquid-phase refrigerant with the expansion valve 15. It is configured to realize a so-called compression type refrigeration cycle that is evaporated by an evaporator and absorbs heat of evaporation from the air into a refrigerant.
- the refrigerant circuit 10 is provided with an oil separator 12 and a four-way valve 13.
- the oil separator 12 separates the liquid-phase refrigerant from the gas-phase refrigerant compressed by the compressor 11 and returns it to the compressor 11.
- the four-way valve 13 switches the delivery destination of the gas-phase refrigerant that has passed through the oil separator 12 between the outdoor unit heat exchanger 14 provided in the outdoor unit and the indoor unit heat exchanger 16 provided in the indoor unit. It is configured as.
- the outdoor unit heat exchanger 14 functions as a condenser
- the indoor unit heat exchanger 16 functions as an evaporator. In 16, so-called cooling operation for cooling the room air can be performed.
- the outdoor unit heat exchanger 14 functions as an evaporator and the indoor unit heat exchanger 16 functions as a condenser.
- a so-called heating operation of heating the indoor air in the indoor unit heat exchanger 16 can be performed.
- the compressor 11 of the refrigerant circuit 10 includes an engine-driven compressor 20 that is driven by an engine 21 to compress the refrigerant, and an electric motor-driven compressor 30 that is driven by an electric motor 31 to compress the refrigerant.
- this heat pump system includes an engine-driven heat pump system (GHP) in which the drive source of the compressor 11 is the engine 21 and an electric motor-driven heat pump system (EHP) in which the drive source of the compressor 11 is the electric motor 31.
- GFP engine-driven heat pump system
- EHP electric motor-driven heat pump system
- the engine 21 need not be specifically limited in terms of engine type, fuel used, etc., but for example, a reciprocating engine or gas turbine engine using city gas as fuel can be employed.
- the engine driven compressor 20 and the electric motor driven compressor 30 are connected in parallel. Specifically, the refrigerant discharge part of the engine-driven compressor 20 and the refrigerant discharge part of the electric motor-driven compressor 30 are merged on the upstream side of the four-way valve 13, specifically on the upstream side of the oil separator 12. On the other hand, the refrigerant inflow portion of the engine-driven compressor 20 and the refrigerant inflow portion of the electric motor-driven compressor 30 branch on the downstream side of the four-way valve 13, specifically, on the downstream side of the junction of the liquid-phase refrigerant separated by the oil separator 12. Has been. That is, in the refrigerant circuit 10, the refrigerant compressed by the engine-driven compressor 20 and the refrigerant compressed by the electric motor-driven compressor 30 respectively flow through the common oil separator 12 and the four-way valve 13.
- the heat pump system includes an operation control unit A that performs operation control and a power supply unit B.
- the power supply unit B converts commercial power into operating power and supplies the operating power to the operation control unit A. More specifically, the power supply unit B converts AC commercial power supplied from the commercial power source 42 into DC operating power using an AC-DC converter or the like, and supplies the DC operating power to the operation control unit A.
- an engine control unit 25 that performs operation control of the engine 21 and an electric motor control unit 35 that performs operation control of the electric motor 31 are provided separately.
- a power conversion unit 23 as an engine side power supply unit that supplies operating power to the engine control unit 25 and a power conversion as an electric motor side power supply unit that supplies operating power to the electric motor control unit 35.
- the part 33 is provided in parallel.
- the engine control unit 25 and the power conversion unit 23 are provided in a form that is mounted on the GHP controller 22 that is an engine side circuit unit.
- the GHP controller 22 is mounted with a main control unit 24 that controls the operation of the refrigerant circuit 10.
- the power conversion unit 23 supplies operating power to the engine control unit 25.
- the power conversion unit 23 can supply operating power to other electric devices in addition to the engine control unit 25.
- the commercial power branched from the terminal unit 40 connected to the commercial power source 42 is distributed and supplied to the power conversion unit 23 of the GHP controller 22 through the leakage breaker 28.
- the electric motor control unit 35 and the power conversion unit 33 are mounted on an EHP controller 32 that is an electric motor side circuit unit provided separately from the GHP controller 22.
- the power converter 33 mounted on the EHP controller 32 can supply operating power to other electric devices in addition to the electric motor controller 35.
- the commercial power branched from the terminal unit 40 connected to the commercial power source 42 is distributed and supplied to the power conversion unit 33 of the EHP controller 32 through the leakage breaker 38.
- the power conversion unit 23 converts commercial power distributed and supplied from the commercial power source 42 into operating power and supplies the operating power to the engine control unit 25, and the power conversion unit 33 is also distributed and supplied from the commercial power source 42.
- the commercial power to be converted into operating power is supplied to the electric motor control unit 35.
- the power conversion unit 23 that is the engine-side power supply unit and the power conversion unit 33 that is the electric motor-side power supply unit are provided in parallel.
- the engine control part 25 can perform the air-conditioning process etc. by operating the refrigerant circuit 10 by receiving the supply of the operating power from the power conversion part 23 and controlling the operation of the engine 21.
- the electric motor control unit 35 can also perform the air conditioning process by operating the refrigerant circuit 10 by receiving the operation power supplied from the power conversion unit 33 and controlling the operation of the electric motor 31.
- the refrigerant circuit 10 is operated to supply air conditioning by supplying the operating power by the power conversion unit 23 that is the engine side power supply unit or by supplying the operating power by the power conversion unit 33 that is the electric motor side power supply unit. Etc. can be performed.
- the GHP controller 22 and the EHP controller 32 are configured to be able to communicate with each other via the communication units 26 and 36.
- the engine control unit 25 and the electric motor control unit 35 of the engine 21 and the electric motor 31 are optimized so as to optimize the energy cost and the environmental load while performing the air conditioning processing required in the refrigerant circuit 10.
- Each output can be controlled in cooperation with each other.
- the GHP controller 22 that mounts the engine control unit 25 and the power conversion unit 23 and the EHP controller 32 that mounts the electric motor control unit 35 and the power conversion unit 33 are separately arranged in parallel. Is provided. For this reason, even when a fault such as leakage or failure occurs on one side of the GHP controller 22 and the EHP controller 32, the other side is maintained in a normal state. Therefore, even when one side of the engine 21 and the electric motor 31 is abnormally stopped due to the above-described failure, the operation of the other side is continued and the operation such as the air conditioning process in the refrigerant circuit 10 is continued. The configuration will be realized.
- the engine driven compressor 20 and the electric motor driven compressor 30 are connected in parallel. For this reason, even when the engine 21 or the electric motor 31 is abnormally stopped, the refrigerant is compressed by operating only the compressor 11 driven by the engine 21 or the electric motor 31 that is not abnormally stopped. The operation of can be continued. Furthermore, the earth leakage circuit breakers 28 and 38 are provided downstream from the terminal part 40 which is a branch part of the commercial power. A power conversion unit 23 that is an engine-side power supply unit and a power conversion unit 33 that is an electric motor-side power supply unit are provided downstream of the leakage breakers 28 and 38, respectively.
- the commercial power supplied from the commercial power source 42 is branched at the terminal unit 40 and is passed through the separate leakage breakers 28 and 38, respectively, to the power conversion unit 23 of the GHP controller 22 and the power conversion unit 33 of the EHP controller 32. To be supplied. For this reason, even if the one-side earth leakage breakers 28 and 38 are activated due to some trouble, the power conversion units 23 and 33 connected to the other-side earth leakage breakers 28 and 38 without being affected by the failure. It is possible to continue the operation of the engine 21 or the electric motor 31 by continuing the supply of commercial power to the vehicle.
- each noise filter (illustration omitted) is installed in the downstream of each earth-leakage circuit breakers 28 and 38, commercial power is passed through each said another noise filter of the power conversion part 23 of the GHP controller 22, and the EHP controller 32.
- the power can be supplied to each of the power converters 33.
- a common noise filter is installed upstream of the branch portion of the commercial power to each of the earth leakage breakers 28 and 38, and the commercial power is passed through the common noise filter of the power conversion unit 23 of the GHP controller 22 and the EHP controller 32. It is also possible to distribute and supply to each of the power converters 33.
- the GHP controller 22 is arranged in parallel with the EHP controller 32. For this reason, it is possible to prevent the related configuration of the GHP controller 22 and the related configuration of the EHP controller 32 from affecting each other. Therefore, when the heat pump system according to the present embodiment is applied to a general GHP and the GHP is changed to a hybrid heat pump system, many of the components used in the GHP can be used, thereby reducing the cost. Can be achieved. On the other hand, when the EHP is changed to a hybrid heat pump system by applying the heat pump system according to the present embodiment to a general EHP, many of the components used in the EHP can be used, thereby reducing the cost. Can be achieved.
- the EHP controller 32 which is an electric motor side circuit unit having the electric motor control unit 35 and the power conversion unit 33 as the electric motor side power supply unit has the engine control unit 25 and the power conversion unit 23 as the engine side power supply unit. It is configured to be detachable with respect to the GHP controller 22 which is an engine side circuit unit. That is, the operation control unit A and the power supply unit B for the hybrid heat pump system are constructed only by mounting the EHP controller 32 on the GHP controller 22. On the other hand, if the EHP controller 32 is removed, only the GHP controller 22 forms the operation control unit A and the power supply unit B for the engine-driven heat pump system.
- the model change between the hybrid type and the engine drive type can be realized easily and rationally, and the cost can be further reduced by sharing the components.
- the removal of the EHP controller 32 from the GHP controller 22 side as described above cancels the connection of the communication unit 36 of the EHP controller 32 to the communication unit 26 of the GHP controller 22 and connects to the commercial power source 42. This is done by releasing the electrical connection of the leakage breaker 38 on the EHP controller 32 side to the terminal unit 40.
- devices related to the EHP controller 32 such as the leakage breaker 38, the electric motor 31, and the electric motor drive compressor 30.
- the engine-driven compressor 20 and the electric motor-driven compressor 30 are connected in parallel in the refrigerant circuit 10, but the present invention is not limited to this configuration.
- an engine-driven compressor and an electric motor-driven compressor may be connected in series in the refrigerant circuit.
- the engine-driven compressor and the electric motor-driven compressor are configured by a common compressor, and the engine shaft output and the electric motor shaft output are combined and input to the common compressor. It doesn't matter.
- the EHP controller 32 that is the electric motor side circuit unit is configured to be detachable from the GHP controller 22 that is the engine side circuit unit, so that the type change between the hybrid type and the engine drive type can be easily and Although configured to be performed rationally, the present invention is not limited to this configuration.
- the GHP controller 22 that is the engine side circuit unit is configured to be detachable from the EHP controller 32 that is the electric motor side circuit unit, so that the type change between the hybrid type and the electric motor drive type can be performed easily and rationally. You may comprise.
- the refrigerant discharge portion of the engine-driven compressor 20 and the refrigerant discharge portion of the electric motor-driven compressor 30 are merged on the upstream side of the four-way valve 13, so that the engine-driven compressor
- the refrigerant compressed by 20 and the refrigerant compressed by the electric motor driven compressor 30 are configured to flow through the common four-way valve 13
- the present invention is not limited to this configuration.
- a four-way valve or the like is provided on each of the engine-driven compressor side and the electric motor-driven compressor side, and the refrigerant discharge portion of the engine-driven compressor 20 and the refrigerant discharge portion of the electric motor-driven compressor 30 are connected upstream of the condenser.
- the present invention can be applied to a so-called hybrid heat pump system including an engine-driven compressor and an electric motor-driven compressor as a compressor of the refrigerant circuit.
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Abstract
Description
運転制御部と、商用電力を作動電力に変換して当該作動電力を前記運転制御部に供給する電源部とを備えたヒートポンプシステムに関する。
また、このようなハイブリッド式のヒートポンプシステムは、GHPやEHPと比べて構造が煩雑であるため、比較的高価なものとなるが、広く普及させるためには、できるだけ合理的な構成を採用してコストダウンを推進することが望まれている。
運転制御部と、商用電力を作動電力に変換して当該作動電力を前記運転制御部に供給する電源部とを備えたヒートポンプシステムであって、
前記運転制御部として、前記エンジンの作動制御を行うエンジン制御部と、前記電動モータの作動制御を行う電動モータ制御部とを備えると共に、
前記電源部として、前記エンジン制御部に作動電力を供給するエンジン側電源部と、前記電動モータ制御部に作動電力を供給する電動モータ側電源部とを並列状態で備えた点にある。
また、エンジン制御部及びエンジン側電源部の構成については、電動モータ側の構成の影響を受けるものではないので、一般的なGHPで利用される構成部品の多くを援用することができる。一方、電動モータ制御部及び電動モータ側電源部の構成については、エンジン側の構成の影響を受けることがないので、一般的なEHPで利用される構成部品の多くを援用することができる。よって、合理的な構成を採用してコストダウンを図ることができる。
従って、本発明により、合理的な構成を採用しながら冗長性を持たせることができる所謂ハイブリッド式のヒートポンプシステムを提供することができる。
図1に示すヒートポンプシステムは、冷媒が循環する冷媒回路10を備える。この冷媒回路10は、気相冷媒を圧縮機11で圧縮した後に凝縮器で凝縮させて凝縮熱を冷媒から空気中に放出し、当該凝縮後の液相冷媒を膨張弁15で膨張させた後に蒸発器で蒸発させて空気中から蒸発熱を冷媒に吸収する所謂圧縮式の冷凍サイクルを実現するものとして構成されている。
即ち、本ヒートポンプシステムは、圧縮機11の駆動源をエンジン21とするエンジン駆動式のヒートポンプシステム(GHP)と、圧縮機11の駆動源を電動モータ31とする電動モータ駆動式のヒートポンプシステム(EHP)とを組み合わせたハイブリッド式のヒートポンプシステムとして構成されている。尚、エンジン21としては、エンジン形式や使用燃料等を特に限定する必要はないが、例えば都市ガスを使用燃料としたレシプロエンジンやガスタービンエンジンなどを採用することができる。
即ち、冷媒回路10において、エンジン駆動圧縮機20で圧縮された冷媒及び電動モータ駆動圧縮機30で圧縮された冷媒の夫々は、共通のオイルセパレータ12及び四方弁13を通流することになる。
運転制御部Aとしては、エンジン21の作動制御を行うエンジン制御部25と、電動モータ31の作動制御を行う電動モータ制御部35とが各別に設けられている。一方、電源部Bとしては、エンジン制御部25に作動電力を供給するエンジン側電源部としての電力変換部23と、電動モータ制御部35に作動電力を供給する電動モータ側電源部としての電力変換部33とが並列状態で設けられている。
更に、商用電力の分岐部である端子部40よりも下流に漏電遮断器28,38が設けられている。漏電遮断器28,38の下流には、それぞれ、エンジン側電源部である電力変換部23及び電動モータ側電源部である電力変換部33が設けられている。よって、商用電源42から供給される商用電力が、端子部40で分岐されて各別の漏電遮断器28,38を通じて、GHPコントローラ22の電力変換部23及びEHPコントローラ32の電力変換部33の夫々に供給される。このため、何らかの障害で一方側の漏電遮断器28,38が作動した場合であっても、その影響を受けずに他方側の漏電遮断器28,38に接続されている電力変換部23,33への商用電力の供給を継続して、エンジン21又は電動モータ31の運転を継続することができる。
尚、夫々の漏電遮断器28,38の下流側において各別のノイズフィルタ(図示省略)を設置し、当該各別のノイズフィルタを通じて商用電力をGHPコントローラ22の電力変換部23及びEHPコントローラ32の電力変換部33の夫々に対して供給することができる。また、各漏電遮断器28,38への商用電力の分岐部の上流側に共通のノイズフィルタを設置し、当該共通のノイズフィルタを通じて商用電力をGHPコントローラ22の電力変換部23及びEHPコントローラ32の電力変換部33の夫々に対して分配供給することもできる。
尚、このようなGHPコントローラ22側からのEHPコントローラ32の取り外しは、GHPコントローラ22の通信部26に対するEHPコントローラ32の通信部36の通信線による接続を解除すると共に、商用電源42に接続された端子部40に対するEHPコントローラ32側の漏電遮断器38の電気接続を解除することで行われる。また、EHPコントローラ32を取り外す場合は、当然、漏電遮断器38や電動モータ31、電動モータ駆動圧縮機30等のEHPコントローラ32に関連する機器についても取り外すことができる。
(1)上記実施形態では、冷媒回路10においてエンジン駆動圧縮機20と電動モータ駆動圧縮機30とを並列状態で接続するように構成したが、本発明はこの構成に限定されるものではない。例えば、冷媒回路においてエンジン駆動圧縮機と電動モータ駆動圧縮機とを直列状態で接続しても構わない。また、エンジン駆動圧縮機と電動モータ駆動圧縮機とを共通の圧縮機で構成すると共に、エンジンの軸出力と電動モータの軸出力とを合成して、その共通の圧縮機に入力するように構成しても構わない。
11 圧縮機
20 エンジン駆動圧縮機
21 エンジン
22 GHPコントローラ(エンジン側回路部)
23 電力変換部(エンジン側電源部)
25 エンジン制御部
30 電動モータ駆動圧縮機
31 電動モータ
32 EHPコントローラ(電動モータ側回路部)
33 電力変換部(電動モータ側電源部)
35 電動モータ制御部
A 運転制御部
B 電源部
Claims (4)
- 冷媒が循環する冷媒回路の圧縮機として、エンジンにより駆動されて冷媒を圧縮するエンジン駆動圧縮機と、電動モータにより駆動されて冷媒を圧縮する電動モータ駆動圧縮機とを備え、
運転制御部と、商用電力を作動電力に変換して当該作動電力を前記運転制御部に供給する電源部とを備えたヒートポンプシステムであって、
前記運転制御部として、前記エンジンの作動制御を行うエンジン制御部と、前記電動モータの作動制御を行う電動モータ制御部とを備えると共に、
前記電源部として、前記エンジン制御部に作動電力を供給するエンジン側電源部と、前記電動モータ制御部に作動電力を供給する電動モータ側電源部とを並列状態で備えたヒートポンプシステム。 - 前記エンジン側電源部及び前記電動モータ側電源部の夫々に対して各別の漏電遮断器を通じて商用電力が分配供給される請求項1に記載のヒートポンプシステム。
- 前記エンジン制御部と前記エンジン側電源部とを有するエンジン側回路部と、前記電動モータ制御部と前記電動モータ側電源部とを有する電動モータ側回路部とのうち、一方の回路部に対して他方の回路部が着脱自在に構成されている請求項1又は2に記載のヒートポンプシステム。
- 前記冷媒回路において、前記エンジン駆動圧縮機及び前記電動モータ駆動圧縮機が並列状態で接続されている請求項1~3の何れか1項に記載のヒートポンプシステム。
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US16/494,508 US20200049390A1 (en) | 2017-03-16 | 2018-03-01 | Heat pump system |
AU2018235320A AU2018235320A1 (en) | 2017-03-16 | 2018-03-01 | Heat pump system |
CN201880005991.9A CN110418923A (zh) | 2017-03-16 | 2018-03-01 | 热泵系统 |
EP18768049.1A EP3598014A4 (en) | 2017-03-16 | 2018-03-01 | HEAT PUMP SYSTEM |
KR1020197018177A KR20190087551A (ko) | 2017-03-16 | 2018-03-01 | 히트 펌프 시스템 |
CA3052557A CA3052557A1 (en) | 2017-03-16 | 2018-03-01 | Heat pump system |
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JP2004106614A (ja) * | 2002-09-17 | 2004-04-08 | Calsonic Kansei Corp | 車両用空調機および空調機用パワーモジュール |
JP2013250004A (ja) | 2012-05-31 | 2013-12-12 | Panasonic Corp | ハイブリッド空気調和装置 |
JP2014178068A (ja) * | 2013-03-15 | 2014-09-25 | Aisin Seiki Co Ltd | 空気調和装置 |
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JP4426737B2 (ja) * | 2000-06-28 | 2010-03-03 | 東芝キヤリア株式会社 | 車両用冷凍装置 |
JP3855866B2 (ja) * | 2001-12-26 | 2006-12-13 | 株式会社デンソー | ハイブリッドコンプレッサ装置 |
US8590330B2 (en) * | 2010-06-03 | 2013-11-26 | Thermo King Corporation | Electric transport refrigeration unit with temperature-based diesel operation |
DE102014212277A1 (de) * | 2013-07-02 | 2015-01-08 | Ford Global Technologies, Llc | Vorrichtung zur vorklimatisierung eines innenraums in einem nicht-elektrofahrzeug unter verwendung von energie von einer externen quelle |
JP6154331B2 (ja) * | 2014-01-10 | 2017-06-28 | 東京瓦斯株式会社 | 空気調和装置 |
JP6351478B2 (ja) * | 2014-10-17 | 2018-07-04 | 大阪瓦斯株式会社 | 空気調和システム |
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JP2004106614A (ja) * | 2002-09-17 | 2004-04-08 | Calsonic Kansei Corp | 車両用空調機および空調機用パワーモジュール |
JP2013250004A (ja) | 2012-05-31 | 2013-12-12 | Panasonic Corp | ハイブリッド空気調和装置 |
JP2014178068A (ja) * | 2013-03-15 | 2014-09-25 | Aisin Seiki Co Ltd | 空気調和装置 |
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CA3052557A1 (en) | 2018-09-20 |
AU2018235320A1 (en) | 2019-09-19 |
EP3598014A4 (en) | 2021-01-13 |
CN110418923A (zh) | 2019-11-05 |
KR20190087551A (ko) | 2019-07-24 |
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