WO2014111018A1 - Nouveau système de réfrigération composite du type à évaporation refroidi par air pour stockage à froid - Google Patents

Nouveau système de réfrigération composite du type à évaporation refroidi par air pour stockage à froid Download PDF

Info

Publication number
WO2014111018A1
WO2014111018A1 PCT/CN2014/070675 CN2014070675W WO2014111018A1 WO 2014111018 A1 WO2014111018 A1 WO 2014111018A1 CN 2014070675 W CN2014070675 W CN 2014070675W WO 2014111018 A1 WO2014111018 A1 WO 2014111018A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
evaporative
condenser
cooled
compressor
Prior art date
Application number
PCT/CN2014/070675
Other languages
English (en)
Chinese (zh)
Inventor
巢民强
Original Assignee
深圳市庄合智能产业科技有限公司
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 深圳市庄合智能产业科技有限公司 filed Critical 深圳市庄合智能产业科技有限公司
Publication of WO2014111018A1 publication Critical patent/WO2014111018A1/fr

Links

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
    • 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
    • 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
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/041—Details of condensers of evaporative 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
    • 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
    • F25B2400/23—Separators
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/026—Compressor control by controlling unloaders
    • F25B2600/0261—Compressor control by controlling unloaders external to the compressor
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/027—Compressor control by controlling pressure
    • F25B2600/0271—Compressor control by controlling pressure the discharge pressure
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2519—On-off valves

Definitions

  • the present invention belongs to the field of refrigeration and refrigeration, and particularly relates to the field of a novel air-cooled evaporative composite cold storage refrigeration system, and more particularly, an air-cooled condenser and an evaporative condenser are connected in parallel and connected in series.
  • an air-cooled condenser or an evaporative condenser can be flexibly selected according to the ambient temperature to cool the refrigeration system of the system.
  • the annual total output of various fresh products in China is about 700 million tons, and the annual output of frozen food is over 25 million tons, with a total output value of more than 52 billion yuan.
  • China's commercial cold storage area is more than 7 million square meters, about 30,000 insulated cars, and 6,900 railway refrigerated trucks.
  • people have cold drinks, meat products, fruits and vegetables, flowers, medicine, Demand for electronic products is growing.
  • China's refrigerated trucks will grow by more than 28% annually, and refrigerators will grow by more than 30% annually.
  • the object of the present invention is to provide a novel air-cooled evaporative composite cold storage refrigeration system, which aims to solve the low efficiency of the condenser of the cold storage system, has poor heat dissipation effect, and can not effectively match the cold storage system according to the ambient temperature, and consume energy.
  • the invention can effectively improve the refrigeration coefficient of the cold storage system, reduce energy consumption, high efficiency and safety, environmental protection and energy saving.
  • the present invention is achieved in this way.
  • a novel air-cooled evaporative composite cold storage refrigeration system the compressor 1 is sequentially pipelined with oil Liquid separator 2, electromagnetic four-way valve 3, air-cooled condenser 4, second check valve 7, accumulator 8, sight glass 9, filter 10, thermal expansion valve 11, indoor evaporator 12, gas
  • the liquid separators 1 3 are connected in series, the air-cooled condenser 4 is connected in parallel with the evaporative condenser 5, the evaporative condenser 5 is connected in series with the first check valve 6, and the pressure controller 14 is respectively connected with
  • the suction pipe of the compressor 1 is connected to the exhaust pipe, and the liquid discharge valve 15 is respectively connected with the air-cooled condenser 4, the outlet manifold of the evaporative condenser 5, and the suction pipe of the compressor 1, and the temperature sensing package and the exhaust pipe are respectively
  • the pipe is connected, and the third check valve 16 is connected in series with the electromagnetic four-way valve 3 and the gas-liquid separator 13.
  • the air-cooled condenser 4 described above employs a finned heat exchanger.
  • the above evaporative condenser 5 employs an evaporative heat exchanger.
  • the indoor evaporator 12 described above employs a finned heat exchanger and a capillary tube.
  • the air cooling condenser and the evaporative condenser are placed in the same system, and the air-cooled condenser and the evaporative condenser are connected in parallel, and the flexible selection can be appropriately adapted according to the ambient temperature.
  • the condenser is cooled.
  • the evaporative condenser can be turned on to reduce the temperature of the refrigerant in the system.
  • the air-cooled condenser can be turned on to reduce the temperature of the refrigerant in the system.
  • the cold storage system actually needs to automatically select to open the air-cooled condenser or the evaporative condenser to achieve the optimal operation matching of the entire refrigeration system.
  • the optimal state of the whole system can be achieved, and the energy efficiency ratio can be maximized. , reduce energy consumption, save energy, reduce investment and system operating costs, energy saving and environmental protection.
  • FIG. 1 is a schematic diagram of a system provided by an embodiment of the present invention.
  • the compressor 1 is sequentially connected to the oil separator 2, the electromagnetic four-way valve 3, the air-cooled condenser 4, the second check valve 7, the accumulator 8, and the sight glass.
  • the filter 10, the thermal expansion valve 11, the indoor evaporator 12, and the gas-liquid separator 13 are connected in series, and the air-cooled condenser 4 is connected in parallel with the evaporative condenser 5, and the evaporative condenser 5 is
  • the first check valves 6 are connected in series, and the pressure controller 14 is respectively connected to the suction pipe and the exhaust pipe of the compressor 1, and the liquid discharge valve 15 is respectively connected with the air-cooled condenser 4 and the evaporative condenser 5
  • the liquid manifold and the compressor 1 are connected by a suction pipe, and the temperature sensing package is connected with the exhaust pipe, and the third check valve 16 is connected in series with the electromagnetic four-way valve 3 and the gas-liquid separator 13 to form a refrigerant therein.
  • the air-cooled condenser 4 uses a finned heat exchanger.
  • the air-cooled condenser 4 is cooled in the system by a pipe connection to cool the refrigerant temperature and exchange heat with the air.
  • the evaporative condenser 5 employs an evaporative heat exchanger.
  • the evaporative condenser 5 is connected to the system to cool the temperature of the refrigerant through a pipe, and exchange heat with water and air.
  • the indoor evaporator 12 uses a finned heat exchanger.
  • the indoor evaporator 12 is connected to the system to absorb heat of the indoor air through a pipe, and the refrigerant exchanges heat with the air.
  • This embodiment has the following two operating conditions.
  • the air-cooled condenser 4 is a finned heat exchanger
  • the evaporative condenser 5 is an evaporative heat exchanger
  • the indoor evaporator 12 is a finned heat exchanger.
  • Working condition 1 Please refer to Figure 1.
  • the system uses evaporative condenser to cool and cool the air.
  • the main working process is as follows: After the system is powered on, the compressor 1 compresses the refrigerant into the oil.
  • the separator 2 After the oil is separated, the refrigerant passes through the electromagnetic four-way valve 3 and then enters the evaporative condenser 5 to exchange heat with water and air, the temperature of the refrigerant decreases, and the refrigerant condenses and passes through the first one-way.
  • the valve 6 the liquid enters into the liquid storage device 8, and the refrigerant passes through the liquid crystal mirror 9 in order from the liquid storage device 8.
  • the filter 10 After the filter 10 is dried, it enters the thermal expansion valve 11 to throttle. After the throttling, the refrigerant enters the indoor evaporator 12 to evaporate and absorb heat, the indoor temperature decreases, the refrigerant absorption temperature rises, and the refrigerant passes through the indoor evaporator 12 and The gas-liquid separator 1 is connected to the gas-liquid separator 1 3, and after the gas-liquid separator 13 is passed, the refrigerant returns to the compressor 1, and the system proceeds to the next cycle.
  • the air-cooled condenser 4 is turned off, and the evaporative condenser 5 is turned on.
  • Working condition 2 Please refer to Figure 1.
  • the system adopts air-cooled condenser for cooling and cooling.
  • the main working process is as follows: After the system is powered on, the compressor 1 compresses the refrigerant into the oil.
  • the liquid separator 2 After the oil is separated, the electromagnetic four-way valve 3 is energized and commutated, and the refrigerant passes through the electromagnetic four-way valve 3 and then enters the air-cooled condenser 4 to exchange heat with the air, and the temperature of the refrigerant is lowered. After the refrigerant condenses, it passes through the second check valve 7 and then enters the liquid storage in the liquid storage device 8.
  • the refrigerant passes through the liquid sighting device 9 and the drying filter 10, and then enters the thermal expansion valve 1 1 .
  • the refrigerant enters the indoor evaporator 12 to evaporate and absorb heat, the indoor temperature decreases, the refrigerant absorption temperature rises, and the refrigerant enters through the connecting pipe between the indoor evaporator 12 and the gas-liquid separator 13 In the gas-liquid separator 1 3, after the gas-liquid separator 13 passes, the refrigerant returns to the compressor 1, and the system proceeds to the next cycle.
  • the air-cooled condenser 4 is turned on, and the evaporative condenser 5 is turned off.
  • the pressure controller 14 is respectively connected to the suction pipe and the exhaust pipe of the compressor 1, and the liquid discharge valve 15 is respectively connected with the air-cooled condenser 4 and the evaporative condenser.
  • the outlet manifold and the compressor 1 are connected by an intake pipe, and the temperature sensing package is connected to the exhaust pipe, and the third check valve 16 is connected in series with the electromagnetic four-way valve 3 and the gas-liquid separator 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention porte sur un système de réfrigération composite du type à évaporation refroidi par air pour un stockage à froid. Un compresseur (1), un séparateur huile-liquide (2), une vanne à quatre voies électromagnétique (3), un condenseur refroidi par air (4), un deuxième clapet anti-retour (7), un accumulateur de liquide (8), un verre de vision (9), un filtre (10), une soupape de détente thermostatique (11), un évaporateur intérieur (12) et un séparateur vapeur-liquide (13) sont reliés en série par l'intermédiaire de tuyaux. Le condenseur refroidi par air (4) est relié à un condenseur d'évaporation (5) en parallèle, et le condenseur d'évaporation (5) est relié à un premier clapet anti-retour (6) en série. Un dispositif de commande de pression (14) est relié au tuyau d'aspiration et au tuyau de décharge du compresseur (1), respectivement, et une vanne de pulvérisation de liquide (15) est reliée aux collecteurs de sortie de liquide du condenseur refroidi par air (4) et du condenseur d'évaporation (5), et au tuyau d'aspiration du compresseur (1), respectivement. Un ensemble de détection de température est relié au tuyau de décharge du compresseur (1). Un troisième clapet anti-retour (16), la vanne à quatre voies électromagnétique (3) et le séparateur vapeur-liquide (13) sont reliés en série.
PCT/CN2014/070675 2013-01-21 2014-01-15 Nouveau système de réfrigération composite du type à évaporation refroidi par air pour stockage à froid WO2014111018A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310025442.7 2013-01-21
CN201310025442.7A CN103075831B (zh) 2013-01-21 2013-01-21 一种新型风冷蒸发式复合的冷库制冷系统

Publications (1)

Publication Number Publication Date
WO2014111018A1 true WO2014111018A1 (fr) 2014-07-24

Family

ID=48152450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/070675 WO2014111018A1 (fr) 2013-01-21 2014-01-15 Nouveau système de réfrigération composite du type à évaporation refroidi par air pour stockage à froid

Country Status (2)

Country Link
CN (1) CN103075831B (fr)
WO (1) WO2014111018A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168209A (zh) * 2018-01-30 2018-06-15 中山市林特冷链设备有限公司 一种风冷制冷馒头机
CN108844280A (zh) * 2018-08-16 2018-11-20 中国葛洲坝集团第工程有限公司 一种制冷设备热量收集系统
CN109163402A (zh) * 2018-10-17 2019-01-08 郑州云海信息技术有限公司 一种电子机房温湿度处理系统
CN111284292A (zh) * 2019-09-03 2020-06-16 浙江宝佳利工程机械配件有限公司 一种新能源电动工程车空调系统
CN114396373A (zh) * 2022-01-28 2022-04-26 烟台珈群高效节能设备有限公司 蒸发式冷凝器的油冷却子系统

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075831B (zh) * 2013-01-21 2015-03-25 深圳市庄合地能产业科技有限公司 一种新型风冷蒸发式复合的冷库制冷系统
CN106568259B (zh) * 2015-10-08 2022-08-12 中海油能源发展股份有限公司 一种基于液化天然气冷能的冷库制冷系统
CN105673106A (zh) * 2016-04-01 2016-06-15 上海开山能源装备有限公司 带组合冷凝器的有机朗肯循环膨胀机系统
CN105673105A (zh) * 2016-04-01 2016-06-15 上海开山能源装备有限公司 带组合工质输送机构的有机朗肯循环膨胀机系统
CN107830667A (zh) * 2017-11-29 2018-03-23 郑州云海信息技术有限公司 一种制冷系统
CN115200252B (zh) * 2022-07-15 2023-09-29 珠海格力电器股份有限公司 一种氟泵压缩制冷系统及其控制方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200968715Y (zh) * 2006-05-18 2007-10-31 李永光 智能热回收热泵冷热水机组
CN200996757Y (zh) * 2007-01-05 2007-12-26 刘波 一种双源双工况热泵节能系统
CN201306879Y (zh) * 2008-11-10 2009-09-09 游道明 一体化冷冻机组
CN201503166U (zh) * 2009-03-06 2010-06-09 上海源知机电科技有限公司 可制取高温热水的冷冻热回收机组
CN101986062A (zh) * 2010-11-15 2011-03-16 大连三洋压缩机有限公司 冷凝温度调节制冷系统
CN202149639U (zh) * 2011-06-24 2012-02-22 大连三洋压缩机有限公司 R404a调压回热式制冷压缩冷凝机组
CN103075831A (zh) * 2013-01-21 2013-05-01 深圳市庄合地能产业科技有限公司 一种新型风冷蒸发式复合的冷库制冷系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2711605Y (zh) * 2004-07-02 2005-07-20 广东申菱空调设备有限公司 节能洁净式屋顶空调机
JP5213372B2 (ja) * 2007-07-09 2013-06-19 三菱電機株式会社 空気調和機
SE0802086A1 (sv) * 2008-10-03 2010-04-04 Svenning Ericsson Styrning av kondensorvärme
CN101387479A (zh) * 2008-10-31 2009-03-18 清华大学 一种复合冷凝器热管冷却机组
CN202116340U (zh) * 2011-06-27 2012-01-18 哈尔滨汽轮机厂辅机工程有限公司 一种采用铁素体不锈钢管的海水淡化主蒸发器
CN202267263U (zh) * 2011-10-08 2012-06-06 合肥美的荣事达电冰箱有限公司 冰箱及其制冷系统
CN102853595A (zh) * 2012-10-12 2013-01-02 天津商业大学 一种制冷系统
CN102853583A (zh) * 2012-10-12 2013-01-02 天津商业大学 一种热泵系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200968715Y (zh) * 2006-05-18 2007-10-31 李永光 智能热回收热泵冷热水机组
CN200996757Y (zh) * 2007-01-05 2007-12-26 刘波 一种双源双工况热泵节能系统
CN201306879Y (zh) * 2008-11-10 2009-09-09 游道明 一体化冷冻机组
CN201503166U (zh) * 2009-03-06 2010-06-09 上海源知机电科技有限公司 可制取高温热水的冷冻热回收机组
CN101986062A (zh) * 2010-11-15 2011-03-16 大连三洋压缩机有限公司 冷凝温度调节制冷系统
CN202149639U (zh) * 2011-06-24 2012-02-22 大连三洋压缩机有限公司 R404a调压回热式制冷压缩冷凝机组
CN103075831A (zh) * 2013-01-21 2013-05-01 深圳市庄合地能产业科技有限公司 一种新型风冷蒸发式复合的冷库制冷系统

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168209A (zh) * 2018-01-30 2018-06-15 中山市林特冷链设备有限公司 一种风冷制冷馒头机
CN108844280A (zh) * 2018-08-16 2018-11-20 中国葛洲坝集团第工程有限公司 一种制冷设备热量收集系统
CN109163402A (zh) * 2018-10-17 2019-01-08 郑州云海信息技术有限公司 一种电子机房温湿度处理系统
CN111284292A (zh) * 2019-09-03 2020-06-16 浙江宝佳利工程机械配件有限公司 一种新能源电动工程车空调系统
CN114396373A (zh) * 2022-01-28 2022-04-26 烟台珈群高效节能设备有限公司 蒸发式冷凝器的油冷却子系统
CN114396373B (zh) * 2022-01-28 2024-01-16 烟台珈群高效节能设备有限公司 蒸发式冷凝器的油冷却子系统

Also Published As

Publication number Publication date
CN103075831B (zh) 2015-03-25
CN103075831A (zh) 2013-05-01

Similar Documents

Publication Publication Date Title
WO2014111018A1 (fr) Nouveau système de réfrigération composite du type à évaporation refroidi par air pour stockage à froid
CN108759138B (zh) 二次节流中间不完全冷却制冷系统的运行方法及系统
CN103808102A (zh) 利用自然循环的热驱动除霜装置及使用该装置除霜的方法
CN204494922U (zh) 一种蒸发冷凝满液式螺杆冷水机组
CN101482321B (zh) 超低温热泵热水器
CN102914192A (zh) 一种具有辅助冷却功能的热管换热器
CN101694329A (zh) 一种并联式蒸发器双工况热泵冷热水机组
CN106705494A (zh) 一种具有防止风侧换热器结冰功能的空气源热泵节能系统
CN201532046U (zh) 一种并联式蒸发器双工况热泵冷热水机组
CN2886447Y (zh) 蒸发预冷式冷水机
CN202581632U (zh) 一种蒸发式冷凝器热泵空调机组
CN108759139B (zh) 具有中温蒸发器的一次节流中间不完全冷却的制冷系统
CN112146301A (zh) 一种带全热回收的蒸发冷螺杆冷热水机组
CN204084942U (zh) 一种带多功能辅助装置的风冷冷热水机组
CN2784832Y (zh) 一种冰箱冷柜用新型回热器
CN202420064U (zh) 一种风冷和水冷共用的制冰机
CN202928184U (zh) 一种带重力自循环式油冷却器的螺杆式冷水机组
CN202452606U (zh) 一种分体空调器
CN210089171U (zh) 双工况制冷系统
CN202835998U (zh) 双循环节能电冰箱
CN209910203U (zh) 蒸汽压缩循环与自然冷却于一体的风冷冷水机组
CN108709333B (zh) 二次节流中间完全冷却的制冷系统的运行方法及系统
CN210089184U (zh) 一种增焓型冷热全能效回收热泵
CN205957531U (zh) 一种带辅助水冷单元的制冷系统
CN209639338U (zh) 一种冷库用水冷式一体机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14740785

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14740785

Country of ref document: EP

Kind code of ref document: A1