WO2015030173A1 - Dispositif de réfrigération du type à récupération de chaleur - Google Patents

Dispositif de réfrigération du type à récupération de chaleur Download PDF

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Publication number
WO2015030173A1
WO2015030173A1 PCT/JP2014/072737 JP2014072737W WO2015030173A1 WO 2015030173 A1 WO2015030173 A1 WO 2015030173A1 JP 2014072737 W JP2014072737 W JP 2014072737W WO 2015030173 A1 WO2015030173 A1 WO 2015030173A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
refrigerant
heat source
source side
heat exchanger
Prior art date
Application number
PCT/JP2014/072737
Other languages
English (en)
Japanese (ja)
Inventor
聡 河野
知久 竹内
紗弥子 木村
松岡　慎也
Original Assignee
ダイキン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Priority to US14/915,018 priority Critical patent/US20160209084A1/en
Priority to CN201480048228.6A priority patent/CN105492833A/zh
Priority to AU2014312825A priority patent/AU2014312825B2/en
Priority to EP14839831.6A priority patent/EP3026355B1/fr
Publication of WO2015030173A1 publication Critical patent/WO2015030173A1/fr

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/16—Arrangement or mounting thereof
    • 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
    • F25B39/00—Evaporators; Condensers
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/007—Compression machines, plants or systems with reversible cycle not otherwise provided for three pipes connecting the outdoor side to the indoor side with multiple indoor units
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
    • F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02743—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using three four-way valves

Definitions

  • the heat load of the plurality of use side heat exchangers as a whole may be reduced. Therefore, it is necessary to be able to reduce the heat load of the entire two heat source side heat exchangers.
  • the second heat source side heat exchanger is set to 1.8 times or more the heat exchange capacity of the first heat source side heat exchanger. For this reason, when only the first heat source side heat exchanger having a small heat exchange capacity is caused to function as a refrigerant radiator or evaporator, the range in which the heat load can be reduced can be expanded. Thereby, it can respond to the case where the thermal load of the whole some use side heat exchanger is small. Moreover, as described above, the second heat source side heat exchanger is set to 4.0 times or less the heat exchange capacity of the first heat source side heat exchanger.
  • the two heat source side heat exchangers are arranged vertically.
  • liquid refrigerant tends to accumulate more easily due to the head difference than the heat source side heat exchanger disposed on the upper side.
  • the heat exchange capacity is small, so that the entire first heat source side heat exchanger is filled with the liquid refrigerant (hereinafter referred to as “liquid immersion”).
  • liquid immersion the liquid refrigerant
  • the usage unit 3a mainly constitutes a part of the refrigerant circuit 10, and includes usage-side refrigerant circuits 13a (in the usage units 3b, 3c, and 3d, usage-side refrigerant circuits 13b, 13c, and 13d, respectively). Yes.
  • the utilization side refrigerant circuit 13a mainly has a utilization side flow rate adjustment valve 51a and a utilization side heat exchanger 52a.
  • the use-side heat exchanger 52a is a device for performing heat exchange between the refrigerant and the room air, and includes, for example, a fin-and-tube heat exchanger configured by a large number of heat transfer tubes and fins.
  • the utilization unit 3a has an indoor fan 53a for sucking indoor air into the unit and exchanging heat, and then supplying the indoor air as supply air to the indoor unit 53a. It is possible to exchange heat with the refrigerant flowing through The indoor fan 53a is driven by the indoor fan motor 54a.
  • This is a device capable of switching the refrigerant flow path in the side refrigerant circuit 12, and is composed of, for example, a four-way switching valve.
  • the second heat exchange switching mechanism 23 is connected to the discharge side of the compressor 21 and the second side when the second heat source side heat exchanger 25 functions as a refrigerant radiator (hereinafter referred to as “heat dissipation operation state”).
  • heat dissipation operation state When connecting the gas side of the heat source side heat exchanger 25 (see the solid line of the second heat exchange switching mechanism 23 in FIG.
  • the heat source unit 2 has an outdoor fan 34 for sucking outdoor air into the unit, exchanging heat, and then discharging the air outside the unit.
  • the outdoor air and the heat source side heat exchangers 24 and 25 are connected to the heat source unit 2. It is possible to exchange heat with the flowing refrigerant.
  • the outdoor fan 34 is driven by an outdoor fan motor 34a.
  • a suction port 2 a for sucking outdoor air is formed on the side surface of the heat source unit 2
  • a discharge port 2 b for discharging outdoor air is formed on the top surface of the heat source unit 2.
  • the outdoor fan 34 is disposed on the upper part of the heat source unit 2.
  • the high-pressure gas refrigerant compressed and discharged by the compressor 21 is sent to both the heat source side heat exchangers 24 and 25 through the heat exchange switching mechanisms 22 and 23.
  • the high-pressure gas refrigerant sent to the heat source side heat exchangers 24 and 25 radiates heat by exchanging heat with outdoor air as a heat source supplied by the outdoor fan 34 in the heat source side heat exchangers 24 and 25.
  • the refrigerant that has radiated heat in the heat source side heat exchangers 24 and 25 is adjusted in flow rate in the heat source side flow rate adjusting valves 26 and 27, and then merges and passes through the inlet check valve 29a and the receiver inlet on / off valve 28c. Sent to.
  • the refrigerant sent to the receiver 28 is temporarily stored in the receiver 28, and then sent to the liquid refrigerant communication tube 6 through the outlet check valve 29 c and the liquid side closing valve 31.
  • the refrigerant sent to the usage-side flow rate adjustment valves 51a, 51b, 51c, 51d is adjusted in flow rate at the usage-side flow rate adjustment valves 51a, 51b, 51c, 51d, and then used-side heat exchangers 52a, 52b, 52c. , 52d evaporates into a low-pressure gas refrigerant by exchanging heat with the indoor air supplied by the indoor fans 53a, 53b, 53c, 53d.
  • the room air is cooled and supplied to the room, and the use units 3a, 3b, 3c, and 3d are cooled.
  • the low-pressure gas refrigerant is sent to the merged gas connection pipes 65a, 65b, 65c, and 65d of the connection units 4a, 4b, 4c, and 4d.
  • the refrigerant sent to the usage-side flow rate adjustment valve 51a is subjected to heat exchange with the indoor air supplied by the indoor fan 53a in the usage-side heat exchanger 52a after the flow rate is adjusted in the usage-side flow rate adjustment valve 51a. As a result, it evaporates into a low-pressure gas refrigerant. On the other hand, the room air is cooled and supplied to the room, and only the use unit 3a is cooled. Then, the low-pressure gas refrigerant is sent to the merged gas connection pipe 65a of the connection unit 4a.
  • the low-pressure gas refrigerant sent to the merged gas connection pipe 65a is sent to the high-low pressure gas refrigerant communication pipe 8 through the high-pressure gas on-off valve 66a and the high-pressure gas connection pipe 63a, and at the same time the low-pressure gas on-off valve 67a and low-pressure gas. It is sent to the low-pressure gas refrigerant communication pipe 9 through the connection pipe 64a.
  • 3b, 3c, 3d use side heat exchangers 52a, 52b, 52c, 52d all function as refrigerant radiators, and use units 3a, 3b, 3c, 3d use side heat exchangers 52a, 52b, All of 52c and 52d and the discharge side of the compressor 21 of the heat source unit 2 are connected via the high and low pressure gas refrigerant communication pipe 8.
  • the usage-side flow rate adjustment valves 51a, 51b, 51c and 51d are adjusted in opening.
  • the high-pressure gas refrigerant sent to the use side heat exchangers 52a, 52b, 52c, and 52d is supplied by the indoor fans 53a, 53b, 53c, and 53d in the use side heat exchangers 52a, 52b, 52c, and 52d. Heat is dissipated by exchanging heat with indoor air. On the other hand, indoor air is heated and supplied indoors, and heating operation of utilization unit 3a, 3b, 3c, 3d is performed.
  • the refrigerant radiated in the use side heat exchangers 52a, 52b, 52c, 52d is adjusted in flow rate in the use side flow rate adjusting valves 51a, 51b, 51c, 51d, and then the liquid connection pipes of the connection units 4a, 4b, 4c, 4d. 61a, 61b, 61c and 61d.
  • the refrigerant sent to the liquid connection pipes 61a, 61b, 61c, 61d is sent to the liquid refrigerant communication pipe 6 and merges.
  • the first heat exchange switching mechanism 22 is switched to the heat dissipation operation state (the state indicated by the solid line of the first heat exchange switching mechanism 22 in FIG. 8), thereby Only the heat exchanger 24 is made to function as a refrigerant radiator. Further, the high / low pressure switching mechanism 30 is switched to the heat radiation load main operation state (the state indicated by the broken line of the high / low pressure switching mechanism 30 in FIG. 8). Further, the opening degree of the first heat source side flow rate adjustment valve 26 is adjusted, the second heat source side flow rate adjustment valve 27 is in a closed state, and the receiver inlet on-off valve 28c is in an open state.
  • the high-pressure gas refrigerant sent to the high-low pressure gas refrigerant communication pipe 8 is sent to the high-pressure gas connection pipe 63d of the connection unit 4d.
  • the high-pressure gas refrigerant sent to the high-pressure gas connection pipe 63d is sent to the use-side heat exchanger 52d of the use unit 3d through the high-pressure gas on-off valve 66d and the merged gas connection pipe 65d.
  • the low-pressure gas refrigerant sent to the low-pressure gas refrigerant communication tube 9 is returned to the suction side of the compressor 21 through the gas-side shut-off valve 33.
  • the low-pressure gas refrigerant sent to the first heat exchange switching mechanism 22 merges with the low-pressure gas refrigerant returned to the suction side of the compressor 21 through the low-pressure gas refrigerant communication tube 9 and the gas-side shut-off valve 33, Returned to the suction side of the compressor 21.
  • the refrigerant that radiates heat in the use side heat exchangers 52c and 52d and is sent to the liquid connection pipes 61c and 61d is sent to the liquid refrigerant communication pipe 6 and merges.
  • the refrigerant sent to the usage-side flow rate adjustment valves 51a and 51b is adjusted by the usage-side flow rate adjustment valves 51a and 51b, and then supplied by the indoor fans 53a and 53b in the usage-side heat exchangers 52a and 52b. By exchanging heat with the indoor air, it evaporates and becomes a low-pressure gas refrigerant. On the other hand, the room air is cooled and supplied to the room, and the use units 3a and 3b are cooled. Then, the low-pressure gas refrigerant is sent to the merged gas connection pipes 65a and 65b of the connection units 4a and 4b.
  • the first heat source side heat exchanger 24 functions as a refrigerant radiator, and the second heat source side heat exchanger 25 is operated as a refrigerant.
  • balances the evaporation load and heat radiation load of the two heat source side heat exchangers 24 and 25 is performed.
  • the second header 25a should be larger than the flow path cross-sectional area of the first header 24a.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

L'invention concerne un dispositif de réfrigération du type à récupération de chaleur (1), qui comprend un compresseur (21), une pluralité d'échangeurs de chaleur côté source de chaleur (24, 25), et une pluralité d'échangeurs de chaleur côté utilisation (52a, 52b, 52c, 52d), et qui peut récupérer la chaleur entre les échangeurs de chaleur côté utilisation en envoyant un réfrigérant d'un échangeur de chaleur côté utilisation agissant comme radiateur thermique du réfrigérant à un échangeur de chaleur côté utilisation agissant comme évaporateur du réfrigérant. La pluralité d'échangeurs de chaleur côté source de chaleur (24, 25) comprennent un premier échangeur de chaleur côté source de chaleur (24) et un second échangeur de chaleur côté source de chaleur (25) qui a 1,8 à 4,0 fois la capacité d'échange de chaleur du premier échangeur de chaleur côté source de chaleur (24).
PCT/JP2014/072737 2013-09-02 2014-08-29 Dispositif de réfrigération du type à récupération de chaleur WO2015030173A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US14/915,018 US20160209084A1 (en) 2013-09-02 2014-08-29 Heat recovery refrigeration device
CN201480048228.6A CN105492833A (zh) 2013-09-02 2014-08-29 热回收型制冷装置
AU2014312825A AU2014312825B2 (en) 2013-09-02 2014-08-29 Heat recovery refrigeration device
EP14839831.6A EP3026355B1 (fr) 2013-09-02 2014-08-29 Dispositif de réfrigération du type à récupération de chaleur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013181493A JP5772904B2 (ja) 2013-09-02 2013-09-02 熱回収型冷凍装置
JP2013-181493 2013-09-02

Publications (1)

Publication Number Publication Date
WO2015030173A1 true WO2015030173A1 (fr) 2015-03-05

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ID=52586720

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Application Number Title Priority Date Filing Date
PCT/JP2014/072737 WO2015030173A1 (fr) 2013-09-02 2014-08-29 Dispositif de réfrigération du type à récupération de chaleur

Country Status (6)

Country Link
US (1) US20160209084A1 (fr)
EP (1) EP3026355B1 (fr)
JP (1) JP5772904B2 (fr)
CN (1) CN105492833A (fr)
AU (1) AU2014312825B2 (fr)
WO (1) WO2015030173A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017156071A (ja) * 2016-03-04 2017-09-07 高砂熱学工業株式会社 水対蒸気熱交換システムおよびその運転方法

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Publication number Priority date Publication date Assignee Title
WO2015178097A1 (fr) * 2014-05-19 2015-11-26 三菱電機株式会社 Dispositif de climatisation
JP5907212B2 (ja) * 2014-05-28 2016-04-26 ダイキン工業株式会社 熱回収型冷凍装置
KR102478547B1 (ko) 2016-08-26 2022-12-16 이너테크 아이피 엘엘씨 단일상 유체 및 대향류 순환로를 구비한 평판관 열교환기를 사용하는 냉각 시스템 및 방법
CN107023948B (zh) * 2017-04-01 2020-05-29 青岛海尔空调器有限总公司 空调器及其不停机除霜运行方法
GB2598683B (en) * 2019-07-10 2023-02-22 Mitsubishi Electric Corp Outdoor unit and air-conditioning apparatus
WO2021047158A1 (fr) * 2019-09-11 2021-03-18 广东美的制冷设备有限公司 Climatiseur et son procédé de commande
JP7185158B1 (ja) * 2021-10-07 2022-12-07 ダイキン工業株式会社 熱源ユニット、および空気調和装置
JP7260810B1 (ja) * 2021-10-07 2023-04-19 ダイキン工業株式会社 熱源ユニット、および空気調和装置

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JPH0464879A (ja) * 1990-07-04 1992-02-28 Hitachi Ltd 凝縮器
JPH05332637A (ja) 1992-05-29 1993-12-14 Sanyo Electric Co Ltd 空気調和装置
JP2001141379A (ja) * 1999-11-11 2001-05-25 Showa Alum Corp 複式熱交換器
JP2001304719A (ja) * 2000-04-17 2001-10-31 Korea Mach Res Inst モジュール形多重流路扁平管蒸発器
WO2004025207A1 (fr) * 2002-09-10 2004-03-25 Gac Corporation Echangeur de chaleur et procede de production correspondant
JP2004286253A (ja) * 2003-03-19 2004-10-14 Sanyo Electric Co Ltd 冷媒高圧回避方法およびそれを用いた空気調和システム
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Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
US20160209084A1 (en) 2016-07-21
JP5772904B2 (ja) 2015-09-02
EP3026355A1 (fr) 2016-06-01
EP3026355B1 (fr) 2020-11-18
JP2015049000A (ja) 2015-03-16
AU2014312825B2 (en) 2017-01-05
EP3026355A4 (fr) 2016-12-21
AU2014312825A1 (en) 2016-04-28
CN105492833A (zh) 2016-04-13

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