CN110145883A - A kind of multi-stage heat exchanger water cooling system for built-in showcase - Google Patents

A kind of multi-stage heat exchanger water cooling system for built-in showcase Download PDF

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Publication number
CN110145883A
CN110145883A CN201910432014.3A CN201910432014A CN110145883A CN 110145883 A CN110145883 A CN 110145883A CN 201910432014 A CN201910432014 A CN 201910432014A CN 110145883 A CN110145883 A CN 110145883A
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CN
China
Prior art keywords
heat exchanger
refrigerant
refrigerating medium
air
plate heat
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201910432014.3A
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Chinese (zh)
Inventor
刘巍
蒋祖群
苏功兵
王慧慧
王长征
靳世乐
刘磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Aucma Smart Cold Chain Co Ltd
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Qingdao Aucma Smart Cold Chain Co Ltd
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Filing date
Publication date
Application filed by Qingdao Aucma Smart Cold Chain Co Ltd filed Critical Qingdao Aucma Smart Cold Chain Co Ltd
Priority to CN201910432014.3A priority Critical patent/CN110145883A/en
Publication of CN110145883A publication Critical patent/CN110145883A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47FSPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00Show cases or show cabinets
    • A47F3/04Show cases or show cabinets air-conditioned, refrigerated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • F25B1/005Compression machines, plants or systems with non-reversible cycle of the single unit type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems

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

Abstract

The invention discloses a kind of multi-stage heat exchanger water cooling systems for built-in showcase, including refrigerant cycle apparatus and refrigerating medium cooling back installation, wherein, refrigerant cycle apparatus includes the compressor being successively sequentially connected by pipeline, plate heat exchanger, solenoid valve, reducing pressure by regulating flow component and evaporator, and the mode that refrigerant enters plate heat exchanger is upper entering and lower leaving;Refrigerating medium cooling back installation includes air-cooled radiator and circulating pump, and refrigerating medium enters plate heat exchanger, the mode of air-cooled radiator is bottom in and top out.The present invention substitutes traditional air-cooled condenser using plate heat exchanger, the heat exchange of refrigerant and refrigerating medium is realized in plate heat exchanger, it is radiated using air-cooled radiator come the refrigerating medium to circulation, it realizes system thermal and is transferred to outdoor from interior, reduce indoor heat, reduce air conditioner load, reduces energy consumption;It solves the problems, such as poor refrigerating efficiency, improves equipment refrigerating efficiency, reduce system failure rate.

Description

A kind of multi-stage heat exchanger water cooling system for built-in showcase
Technical field
The present invention relates to refrigeration system technical field more particularly to a kind of multi-stage heat exchanger for built-in showcase are air-cooled Cooling system.
Background technique
Currently, built-in showcase refrigeration system majority uses air-cooled condenser, refrigerating efficiency is lower, and system thermal is straight Run in and is placed on interior.When indoor environment temperature is high, especially summer will increase interior due to the increase of indoor heat The load of air-conditioning increases additional electric energy consumption, improves use cost.
When night air-conditioning is closed, indoor system thermal is unable to get effective discharge, will lead to system compressors row Temperature degree increases, and condensing pressure is excessively high easily to cause that equipment integrally cooling effect is poor and equipment is frequent fault alarm The phenomenon that, in addition, being also easy to cause cargo in cabinet to occur to go bad, equipment damage is also resulted in when serious, makes built-in showcase Use on there are great security risks.
Summary of the invention
In order to solve the above technical problems, the invention discloses a kind of multi-stage heat exchanger wind-cooling heat dissipatings for built-in showcase System.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of multi-stage heat exchanger water cooling system for built-in showcase, including refrigerant cycle apparatus and refrigerating medium Cooling back installation, in which:
The refrigerant cycle apparatus includes the compressor, plate heat exchanger, electromagnetism being successively sequentially connected by pipeline Valve, reducing pressure by regulating flow component and evaporator, the mode that refrigerant enters plate heat exchanger is upper entering and lower leaving, and the solenoid valve is controllable It opens or closes into the conveying of the refrigerant of evaporator and compressor;
The refrigerating medium cooling back installation includes air-cooled radiator and circulating pump, and refrigerating medium enters plate heat exchanger, wind The mode of cold heat sink is bottom in and top out.
As present invention further optimization, the workflow of the refrigerant cycle apparatus:
The high-temperature high-pressure refrigerant come out from compressor enters in plate heat exchanger, and high-temperature high-pressure refrigerant and refrigerating medium exist Heat exchange is carried out in plate heat exchanger, the refrigerant of high temperature and pressure is condensed into high pressure liquid refrigerant, and liquid refrigerant passes through again It crosses throttling decompression portion part to enter in evaporator, heat absorption becomes gaseous state, gaseous state low-temperature refrigerant mistake in evaporator in evaporator It is sucked back into compressor after heat, is compressed into the refrigerant of high temperature and pressure again, completes refrigerant circulating process, so recycles past It is multiple.
As present invention further optimization, the reducing pressure by regulating flow component selects expansion valve or capillary.
As present invention further optimization, when system occurs abnormal, solenoid valve control cuts off the confession of liquid refrigerant It gives.
As present invention further optimization, the workflow of the refrigerating medium cooling back installation:
When the refrigerant and refrigerating medium of high temperature and pressure carry out heat exchange in plate heat exchanger, refrigerating medium is heated, discharge It being pumped into air-cooled radiator after plate heat exchanger through circulation, air-cooled radiator draws the air in environment by strong fan, Refrigerating medium is cooled down, refrigerating medium after cooling is sent back in plate heat exchanger again, completes refrigerating medium circulating cooling mistake Journey loops back and forth like this.
As present invention further optimization, the refrigerating medium is suitable for the liquid under -50 DEG C~50 DEG C environment temperatures.
As present invention further optimization, the refrigerating medium selects one of water, ethylene glycol, anti-icing fluid.
As present invention further optimization, the air-cooled radiator selects gilled radiator.
In workflow of the present invention, the refrigerant in refrigeration system is condensed using the refrigerating medium of certain temperature, is led to The heat of generation indoors is transferred in outdoor air-cooled radiator by overload refrigerant cycle, to realize system thermal from interior It is transferred to outdoor process.
The invention has the advantages that traditional air-cooled condenser is substituted using plate heat exchanger, in plate heat exchanger The heat exchange for realizing refrigerant and refrigerating medium, is radiated come the refrigerating medium to circulation using air-cooled radiator, realizes system Heat is transferred to outdoor from interior, greatly reduces indoor heat, to reduce the load of air-conditioning, reduces energy consumption;It is also complete Beauty solve the problems, such as because refrigeration system pressure it is high caused by poor refrigerating efficiency, equipment integrally cooling effect is effectively promoted Rate reduces system failure rate.
Detailed description of the invention
Fig. 1 is the refrigerant cycle apparatus flow diagram in the present invention;
Fig. 2 is the refrigerating medium cooling back installation flow diagram in the present invention.
Wherein, 1, compressor;2, plate heat exchanger;3, solenoid valve;4, reducing pressure by regulating flow component;5, evaporator;6, air-cooled to dissipate Hot device;7, circulating pump.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts Example is applied, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of multi-stage heat exchanger water cooling system for built-in showcase, including refrigerant cycle apparatus and refrigerating medium Cooling back installation, in which:
Refrigerant cycle apparatus, as shown in Figure 1, including compressor 1, the plate-type heat-exchange being successively sequentially connected by pipeline Device 2, solenoid valve 3, reducing pressure by regulating flow component 4 and evaporator 5, the mode that refrigerant enters plate heat exchanger 2 is upper entering and lower leaving, electromagnetism Controllable open or close of valve 3 conveys into the refrigerant of evaporator 5 and compressor 1.
Refrigerating medium cooling back installation, as shown in Fig. 2, including air-cooled radiator 6 and circulating pump, refrigerating medium enters board-like change Hot device 2, air-cooled radiator 6 mode be bottom in and top out;Refrigerant is in plate heat exchanger 2 while upper entering and lower leaving, refrigerating Agent bottom in and top out in plate heat exchanger 2, the heat exchanging process of more efficient completion refrigerant and refrigerating medium are more preferable to reach Heat transfer effect.
Particularly, reducing pressure by regulating flow component 4 selects expansion valve or capillary, can reducing pressure by regulating flow refrigerant, and provide it is suitable Refrigerant flow.
Particularly, when system occurs abnormal, the supply of the control cutting liquid refrigerant of solenoid valve 3 when the system failure, is cut The supply of disconnected refrigerant, can be effectively protected whole system.In addition, solenoid valve 3 can also be controlled by the temperature value of temperature sensing package The opening and closing of solenoid valve 3 processed, to control whether liquid refrigerant flows into evaporation 5.
Particularly, the workflow of above-mentioned refrigerant cycle apparatus:
The high-temperature high-pressure refrigerant come out from compressor 1 enters in plate heat exchanger 2, high-temperature high-pressure refrigerant and refrigerating medium Heat exchange is carried out in plate heat exchanger 2, the refrigerant of high temperature and pressure is condensed into high pressure liquid refrigerant, and liquid refrigerant is again Enter in evaporator 5 by reducing pressure by regulating flow component 4, heat absorption becomes gaseous state in evaporator 5, and gaseous state low-temperature refrigerant is in evaporator It is sucked back into compressor 1 after overheating in 5, is compressed into the refrigerant of high temperature and pressure again, completes refrigerant circulating process, so It moves in circles.
Particularly, the workflow of above-mentioned refrigerating medium cooling back installation:
When the refrigerant and refrigerating medium of high temperature and pressure carry out heat exchange in plate heat exchanger 2, refrigerating medium is heated, discharge It is pumped into air-cooled radiator 6 after plate heat exchanger 2 through circulation, air-cooled radiator 6 draws the sky in environment by strong fan Gas cools down refrigerating medium, and refrigerating medium after cooling is sent back to again in plate heat exchanger 2, and it is cold to complete refrigerating medium circulation But process loops back and forth like this.
Particularly, refrigerating medium selects water.
Particularly, air-cooled radiator 6 selects gilled radiator, is disposed vertically in cabinet, heat exchange area is big.
In the present invention, use plate heat exchanger 2 as water-cooled condenser, heat exchange efficiency is high, and space occupied is small;Heat eliminating medium carries Cryogen be suitable for the liquid under -50 DEG C~50 DEG C environment temperatures, it is applied widely.
The system cools down the refrigerant of the high temperature and pressure of the discharge of compressor 1 using the refrigerating medium of circulation, is greatly improved Heat exchange efficiency, meanwhile, it is radiated using small-sized air-cooled radiator 6 come the refrigerating medium to circulation, thus by indoor system Heat is transferred in outdoor environment;In addition, traditional air-cooled condenser inevitably will appear summer environment temperature is higher The high problem of refrigeration system pressure, pressure height will result in poor refrigerating efficiency, and the present invention can thoroughly solve poor refrigerating efficiency and set The problem of standby frequently alarm.
Embodiment 2
A kind of multi-stage heat exchanger water cooling system for built-in showcase, including refrigerant cycle apparatus and refrigerating medium Cooling back installation, in which:
Refrigerant cycle apparatus, as shown in Figure 1, including compressor 1, the plate-type heat-exchange being successively sequentially connected by pipeline Device 2, solenoid valve 3, reducing pressure by regulating flow component 4 and evaporator 5, the mode that refrigerant enters plate heat exchanger 2 is upper entering and lower leaving, electromagnetism Controllable open or close of valve 3 conveys into the refrigerant of evaporator 5 and compressor 1.
Refrigerating medium cooling back installation, as shown in Fig. 2, including air-cooled radiator 6 and circulating pump, refrigerating medium enters board-like change Hot device 2, air-cooled radiator 6 mode be bottom in and top out;Refrigerant is in plate heat exchanger 2 while upper entering and lower leaving, refrigerating Agent bottom in and top out in plate heat exchanger 2, the heat exchanging process of more efficient completion refrigerant and refrigerating medium are more preferable to reach Heat transfer effect.
Particularly, reducing pressure by regulating flow component 4 selects expansion valve or capillary, can reducing pressure by regulating flow refrigerant, and provide it is suitable Refrigerant flow.
Particularly, when system occurs abnormal, the supply of the control cutting liquid refrigerant of solenoid valve 3 when the system failure, is cut The supply of disconnected refrigerant, can be effectively protected whole system.In addition, solenoid valve 3 can also be controlled by the temperature value of temperature sensing package The opening and closing of solenoid valve 3 processed, to control whether liquid refrigerant flows into evaporation 5.
Particularly, the workflow of above-mentioned refrigerant cycle apparatus:
The high-temperature high-pressure refrigerant come out from compressor 1 enters in plate heat exchanger 2, high-temperature high-pressure refrigerant and refrigerating medium Heat exchange is carried out in plate heat exchanger 2, the refrigerant of high temperature and pressure is condensed into high pressure liquid refrigerant, and liquid refrigerant is again Enter in evaporator 5 by reducing pressure by regulating flow component 4, heat absorption becomes gaseous state in evaporator 5, and gaseous state low-temperature refrigerant is in evaporator It is sucked back into compressor 1 after overheating in 5, is compressed into the refrigerant of high temperature and pressure again, completes refrigerant circulating process, so It moves in circles.
Particularly, the workflow of above-mentioned refrigerating medium cooling back installation:
When the refrigerant and refrigerating medium of high temperature and pressure carry out heat exchange in plate heat exchanger 2, refrigerating medium is heated, discharge It is pumped into air-cooled radiator 6 after plate heat exchanger 2 through circulation, air-cooled radiator 6 draws the sky in environment by strong fan Gas cools down refrigerating medium, and refrigerating medium after cooling is sent back to again in plate heat exchanger 2, and it is cold to complete refrigerating medium circulation But process loops back and forth like this.
Particularly, the refrigerating medium of selection is ethylene glycol.
Particularly, air-cooled radiator 6 selects gilled radiator, is disposed vertically in cabinet, heat exchange area is big.
Embodiment 3
A kind of multi-stage heat exchanger water cooling system for built-in showcase, including refrigerant cycle apparatus and refrigerating medium Cooling back installation, in which:
Refrigerant cycle apparatus, as shown in Figure 1, including compressor 1, the plate-type heat-exchange being successively sequentially connected by pipeline Device 2, solenoid valve 3, reducing pressure by regulating flow component 4 and evaporator 5, the mode that refrigerant enters plate heat exchanger 2 is upper entering and lower leaving, electromagnetism Controllable open or close of valve 3 conveys into the refrigerant of evaporator 5 and compressor 1.
Refrigerating medium cooling back installation, as shown in Fig. 2, including air-cooled radiator 6 and circulating pump, refrigerating medium enters board-like change Hot device 2, air-cooled radiator 6 mode be bottom in and top out;Refrigerant is in plate heat exchanger 2 while upper entering and lower leaving, refrigerating Agent bottom in and top out in plate heat exchanger 2, the heat exchanging process of more efficient completion refrigerant and refrigerating medium are more preferable to reach Heat transfer effect.
Particularly, reducing pressure by regulating flow component 4 selects expansion valve or capillary, can reducing pressure by regulating flow refrigerant, and provide it is suitable Refrigerant flow.
Particularly, when system occurs abnormal, the supply of the control cutting liquid refrigerant of solenoid valve 3 when the system failure, is cut The supply of disconnected refrigerant, can be effectively protected whole system.In addition, solenoid valve 3 can also be controlled by the temperature value of temperature sensing package The opening and closing of solenoid valve 3 processed, to control whether liquid refrigerant flows into evaporation 5.
Particularly, the workflow of above-mentioned refrigerant cycle apparatus:
The high-temperature high-pressure refrigerant come out from compressor 1 enters in plate heat exchanger 2, high-temperature high-pressure refrigerant and refrigerating medium Heat exchange is carried out in plate heat exchanger 2, the refrigerant of high temperature and pressure is condensed into high pressure liquid refrigerant, and liquid refrigerant is again Enter in evaporator 5 by reducing pressure by regulating flow component 4, heat absorption becomes gaseous state in evaporator 5, and gaseous state low-temperature refrigerant is in evaporator It is sucked back into compressor 1 after overheating in 5, is compressed into the refrigerant of high temperature and pressure again, completes refrigerant circulating process, so It moves in circles.
Particularly, the workflow of above-mentioned refrigerating medium cooling back installation:
When the refrigerant and refrigerating medium of high temperature and pressure carry out heat exchange in plate heat exchanger 2, refrigerating medium is heated, discharge It is pumped into air-cooled radiator 6 after plate heat exchanger 2 through circulation, air-cooled radiator 6 draws the sky in environment by strong fan Gas cools down refrigerating medium, and refrigerating medium after cooling is sent back to again in plate heat exchanger 2, and it is cold to complete refrigerating medium circulation But process loops back and forth like this.
Particularly, the refrigerating medium of selection is anti-icing fluid.
Particularly, air-cooled radiator 6 selects gilled radiator, is disposed vertically in cabinet, heat exchange area is big.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck The variations, modifications, additions or substitutions that the technical staff in domain is made within the essential scope of the present invention also should belong to of the invention Protection scope.

Claims (8)

1. a kind of multi-stage heat exchanger water cooling system for built-in showcase, which is characterized in that filled including refrigerant circulation It sets and refrigerating medium cooling back installation, in which:
The refrigerant cycle apparatus includes the compressor being successively sequentially connected by pipeline, plate heat exchanger, solenoid valve, section Stream decompression component and evaporator, the mode that refrigerant enters plate heat exchanger is upper entering and lower leaving, and the solenoid valve is controllable to be opened Or close the refrigerant conveying for entering evaporator and compressor;
The refrigerating medium cooling back installation includes air-cooled radiator and circulating pump, and refrigerating medium enters plate heat exchanger, air-cooled dissipates The mode of hot device is bottom in and top out.
2. a kind of multi-stage heat exchanger water cooling system for built-in showcase as described in claim 1, which is characterized in that The workflow of the refrigerant cycle apparatus:
The high-temperature high-pressure refrigerant come out from compressor enters in plate heat exchanger, and high-temperature high-pressure refrigerant and refrigerating medium are board-like Heat exchange is carried out in heat exchanger, the refrigerant of high temperature and pressure is condensed into high pressure liquid refrigerant, and liquid refrigerant is using section Stream decompression component enters in evaporator, and heat absorption becomes gaseous state in evaporator, after gaseous state low-temperature refrigerant overheats in evaporator It is sucked back into compressor, is compressed into the refrigerant of high temperature and pressure again, refrigerant circulating process is completed, loops back and forth like this.
3. a kind of multi-stage heat exchanger water cooling system for built-in showcase as described in claim 1, which is characterized in that The reducing pressure by regulating flow component selects expansion valve or capillary.
4. a kind of multi-stage heat exchanger water cooling system for built-in showcase as described in claim 1, which is characterized in that When system occurs abnormal, solenoid valve control cuts off the supply of liquid refrigerant.
5. a kind of multi-stage heat exchanger water cooling system for built-in showcase as described in claim 1, which is characterized in that The workflow of the refrigerating medium cooling back installation:
When the refrigerant and refrigerating medium of high temperature and pressure carry out heat exchange in plate heat exchanger, refrigerating medium is heated, and is discharged board-like It is pumped into air-cooled radiator after heat exchanger through circulation, air-cooled radiator draws the air in environment by strong fan, to load Cryogen is cooled down, and refrigerating medium after cooling is sent back in plate heat exchanger again, completes refrigerating medium circulating cooling process, such as This moves in circles.
6. a kind of multi-stage heat exchanger water cooling system for built-in showcase as claimed in claim 5, which is characterized in that The refrigerating medium is suitable for the liquid under -50 DEG C~50 DEG C environment temperatures.
7. a kind of multi-stage heat exchanger water cooling system for built-in showcase as claimed in claim 6, which is characterized in that The refrigerating medium selects one of water, ethylene glycol, anti-icing fluid.
8. a kind of multi-stage heat exchanger water cooling system for built-in showcase as claimed in claim 5, which is characterized in that The air-cooled radiator selects gilled radiator.
CN201910432014.3A 2019-05-23 2019-05-23 A kind of multi-stage heat exchanger water cooling system for built-in showcase Pending CN110145883A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111336755A (en) * 2020-03-03 2020-06-26 逸励实业(上海)有限公司 Ethylene glycol defrosting and heating system
CN111602998A (en) * 2020-06-24 2020-09-01 广东乘心电器实业有限公司 Energy-saving temperature-adjusting display cabinet control system

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CN103808068A (en) * 2014-01-28 2014-05-21 华中科技大学 Refrigerating system
CN104005783A (en) * 2014-06-10 2014-08-27 北京中煤矿山工程有限公司 Pneumatic refrigeration device and method for mine
CN204329397U (en) * 2014-11-21 2015-05-13 珠海格力电器股份有限公司 Water chilling unit
CN210128524U (en) * 2019-05-23 2020-03-06 青岛澳柯玛智慧冷链有限公司 Multistage heat exchange air-cooling heat dissipation system for built-in display cabinet

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004003825A (en) * 2002-03-28 2004-01-08 Mitsubishi Electric Corp Heat pump system, and heat pump type hot water supplying machine
KR200300275Y1 (en) * 2002-09-10 2003-01-14 류옥란 refrigeration system
CN1888639A (en) * 2006-07-24 2007-01-03 南京大学 Heat pipe cold accumulating air conditioning device
KR20100078074A (en) * 2008-12-30 2010-07-08 유인석 System of heat pump for cooling and heating of middle pressure cycle for air heat source
CN101846389A (en) * 2009-06-11 2010-09-29 苏州大学 Air source heat pump water heater
CN103808068A (en) * 2014-01-28 2014-05-21 华中科技大学 Refrigerating system
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CN210128524U (en) * 2019-05-23 2020-03-06 青岛澳柯玛智慧冷链有限公司 Multistage heat exchange air-cooling heat dissipation system for built-in display cabinet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111336755A (en) * 2020-03-03 2020-06-26 逸励实业(上海)有限公司 Ethylene glycol defrosting and heating system
CN111602998A (en) * 2020-06-24 2020-09-01 广东乘心电器实业有限公司 Energy-saving temperature-adjusting display cabinet control system

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