CN110567206A - Pipeline gas-liquid separator for low-temperature screw parallel unit - Google Patents

Pipeline gas-liquid separator for low-temperature screw parallel unit Download PDF

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Publication number
CN110567206A
CN110567206A CN201910969454.2A CN201910969454A CN110567206A CN 110567206 A CN110567206 A CN 110567206A CN 201910969454 A CN201910969454 A CN 201910969454A CN 110567206 A CN110567206 A CN 110567206A
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CN
China
Prior art keywords
gas
pipeline
liquid
pipe
liquid separation
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
CN201910969454.2A
Other languages
Chinese (zh)
Inventor
郭相声
李宗生
侯予
文键
吴学红
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.)
Jiangsu Xingxing Home Appliance Technology Co Ltd
Original Assignee
Jiangsu Xingxing Home Appliance Technology Co Ltd
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 Jiangsu Xingxing Home Appliance Technology Co Ltd filed Critical Jiangsu Xingxing Home Appliance Technology Co Ltd
Priority to CN201910969454.2A priority Critical patent/CN110567206A/en
Publication of CN110567206A publication Critical patent/CN110567206A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16Filtration; Moisture separation
    • 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
    • F25B1/04Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
    • F25B1/047Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw 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
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006Accumulators
    • 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
    • F25B5/00Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The invention discloses a pipeline gas-liquid separator for a low-temperature screw parallel unit, wherein gas-liquid separation components are symmetrically installed on the upper surface of a gas-liquid separation pipeline in an embedded manner; the upper surface of the gas-liquid separation pipeline is communicated with a gas inlet main pipe; end sealing caps are arranged at two end parts of the gas-liquid separation pipeline; the outer side wall of the end sealing cap is provided with a liquid viewing mirror; the upper end part of the air separation cavity is provided with an upper seal head; the lower end part of the air distribution cavity is provided with a lower sealing plate; an oil return hole is formed in the bottom plate at the lowest point of the transition bent pipe; each upper air return vertical pipe is connected with a compressor through a pipeline; the compressors are connected in parallel and then are sequentially connected with a condenser, a liquid storage device, a flow control valve and an evaporator through pipelines; the outlet end of the evaporator is communicated with the air inlet manifold. The pipeline gas-liquid separator for the low-temperature screw parallel unit is low in cost, convenient to install and use, capable of improving the working performance of the parallel unit and prolonging the service life of the compressor.

Description

Pipeline gas-liquid separator for low-temperature screw parallel unit
Technical Field
The invention relates to the technical field of production and manufacturing of refrigeration systems, in particular to a pipeline gas-liquid separator for a low-temperature screw parallel unit.
Background
At present, the refrigeration of a large-scale refrigeration house is realized by adopting a parallel unit mostly. The parallel unit is an operation mode that two or more than two refrigeration compressors share an air inlet pipe and an air return pipe, and the parallel operation simply and effectively realizes the change of the refrigeration capacity of the refrigeration system by changing the starting number of the compressors, so that the parallel unit has the advantages of energy conservation, convenience in adjustment and the like; however, one or more gas-liquid separators are mostly adopted for gas return of low-temperature parallel units in the market, and the gas-liquid separators are positioned at the low-temperature part of the system and need to be insulated, once liquid refrigerants enter the system and are difficult to evaporate, liquid return phenomena of the compressor are frequent, the service life of the compressor is greatly shortened, and when a plurality of compressors are connected in parallel and one gas-liquid separator is adopted, the volume of the gas-liquid separator is large, the occupied machine room space is large, and when a plurality of gas-liquid separators are adopted, although the volume of a single gas-liquid separator is small, the phenomena of oil return, gas return, uneven pressure and the like can occur; the condition of accumulated liquid in the gas-liquid separator cannot be observed without a liquid viewing mirror on the gas-liquid separator, so that the system cannot be adjusted.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the pipeline gas-liquid separator for the low-temperature screw parallel unit, which has the advantages of low cost, convenience in installation and use, improvement on the working performance of the parallel unit and prolongation of the service life of a compressor.
In order to achieve the purpose, the invention provides the following technical scheme: a pipeline gas-liquid separator for a low-temperature screw parallel unit comprises a gas-liquid separation component, a gas-liquid separation pipeline, a gas inlet main pipe, an end sealing cap, a liquid viewing mirror, an upper end enclosure, a gas-liquid separation cavity, a lower sealing plate, a lower gas inlet vertical pipe, a transition bent pipe, an oil return hole, an end gas inlet pipe, an upper gas return vertical pipe, a compressor, a condenser, a liquid storage device, a flow control valve and an evaporator, wherein the gas-liquid separation component is symmetrically installed on the upper surface of the gas-liquid separation pipeline in an embedded mode; the upper surface of the gas-liquid separation pipeline positioned between the two gas separation assemblies is communicated with a gas inlet main pipe; end sealing caps are mounted at two end parts of the gas-liquid separation pipeline; the outer side wall of the end sealing cap is provided with a liquid viewing mirror; the gas distribution assembly comprises an upper end enclosure, a gas distribution cavity, a lower sealing plate, a lower gas inlet vertical pipe, a transition bent pipe, an oil return hole, an end head gas inlet pipe and an upper gas return vertical pipe, wherein the upper end part of the gas distribution cavity is provided with the upper end enclosure; the lower end part of the gas distribution cavity is provided with a lower sealing plate; the lower air inlet vertical pipe vertically penetrates through the lower sealing plate from bottom to top and is inserted into the air distribution cavity; the upper air return vertical pipe vertically penetrates through the upper end enclosure from top to bottom and is inserted into the air sub-cavity; the lower end part of the lower air inlet vertical pipe is connected with an end air inlet pipe through a transition bent pipe; an oil return hole is formed in the bottom plate at the lowest point of the transition bent pipe; each upper air return vertical pipe is connected with a compressor through a pipeline; the compressors are connected in parallel and then are sequentially connected with a condenser, a liquid storage device, a flow control valve and an evaporator through pipelines; the outlet end of the evaporator is communicated with the air inlet main pipe.
As a further improvement of the present invention, the distance between the lowest point of the bottom pipe wall of the transition elbow and the inner bottom surface of the gas-liquid separation pipe is set to be twenty millimeters.
As a further improvement of the invention, the number of the liquid sight glasses arranged on the outer side wall of the end sealing cap is two or more.
As a further improvement of the invention, the hole diameter of the oil return hole is six millimeters.
As a further improvement of the present invention, the lower vertical air inlet pipes and the upper vertical air return pipes are arranged in a staggered manner in the horizontal direction, and the upper end surfaces of the lower vertical air inlet pipes and the lower end surfaces of the upper vertical air return pipes are both provided with inclined slope surfaces.
As a further improvement of the present invention, the inclination angle of the inclined bevel face is set to thirty degrees.
The invention provides a pipeline gas-liquid separator for a low-temperature screw parallel unit, which has the following beneficial effects: according to the invention, the gas-liquid separation pipeline is adopted, the gas-liquid separation components are symmetrically arranged at the upper part of the gas-liquid separation pipeline, and the cavity of the gas-liquid separation pipeline forms two gas-liquid separation systems which are mutually related, so that the problems of difficult evaporation and liquid return of the compressor caused by the entering of liquid refrigerants can be effectively solved, the gas return system is simplified, the installation space is saved, and the manufacturing cost of equipment is reduced; according to the technical scheme, the oil return hole is formed in the transition bent pipe, and the inclined bevel face is arranged on the upper end face of the lower air inlet vertical pipe and the lower end face of the upper air return vertical pipe, so that the oil return problem of the compressor can be effectively solved; according to the technical scheme, the gas-liquid separation pipeline is arranged between the two gas separation assemblies, so that the problems of gas return and uneven pressure can be effectively solved; this technical scheme has still set up on the end sealing cap at the both ends of gas-liquid separation pipeline and has looked the liquid mirror, can realize observing the gas-liquid separation pipeline better whether have the hydrops condition, and then in time observing and make correct adjustment to cooling system to the working property, the extension compressor life of parallelly connected unit have been improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial enlarged structure of a gas separation module and a gas-liquid separation pipeline according to the present invention;
FIG. 3 is a schematic structural view of the gas separation module of the present invention.
The reference numbers in the figures are: 1. a gas separation component; 2. a gas-liquid separation conduit; 3. an intake manifold; 4. an end sealing cap; 5. a liquid viewing mirror; 6. an upper end enclosure; 7. a gas separation cavity; 8. a lower sealing plate; 9. a lower air inlet vertical pipe; 10. a transition bent pipe; 11. an oil return hole; 12. a gas inlet pipe at the end; 13. an upper air return vertical pipe; 14. a compressor; 15. a condenser; 16. a reservoir; 17. a flow control valve; 18. an evaporator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1-3, the present invention provides a technical solution: a pipeline gas-liquid separator for a low-temperature screw parallel unit comprises a gas-liquid separation component 1, a gas-liquid separation pipeline 2, an air inlet main pipe 3, an end sealing cap 4, a liquid viewing mirror 5, an upper sealing head 6, a gas-liquid separation cavity 7, a lower sealing plate 8, a lower air inlet vertical pipe 9, a transition bent pipe 10, an oil return hole 11, an end air inlet pipe 12, an upper air return vertical pipe 13, a compressor 14, a condenser 15, a liquid storage device 16, a flow control valve 17 and an evaporator 18, wherein the gas-liquid separation component 1 is symmetrically installed on the upper surface of the gas-liquid separation pipeline 2 in an embedded mode; the upper surface of the gas-liquid separation pipeline 2 positioned between the two gas distribution assemblies 1 is communicated with a gas inlet main pipe 3; end sealing caps 4 are respectively arranged at the two end parts of the gas-liquid separation pipeline 2; the outer side wall of the end sealing cap 4 is provided with a liquid viewing mirror 5; the gas distribution assembly 1 comprises an upper end enclosure 6, a gas distribution cavity 7, a lower sealing plate 8, a lower gas inlet vertical pipe 9, a transition bent pipe 10, an oil return hole 11, an end gas inlet pipe 12 and an upper gas return vertical pipe 13, wherein the upper end part of the gas distribution cavity 7 is provided with the upper end enclosure 6; the lower end part of the air distribution cavity 7 is provided with a lower sealing plate 8; the lower air inlet vertical pipe 9 vertically penetrates through the lower sealing plate 8 from bottom to top and is inserted into the air distribution cavity 7; the upper air return vertical pipe 13 vertically penetrates through the upper seal head 6 from top to bottom and is inserted into the air distribution cavity 7; the lower end part of the lower air inlet vertical pipe 9 is connected with an end air inlet pipe 12 through a transition bent pipe 10; an oil return hole 11 is formed in the bottom plate at the lowest point of the transition bent pipe 10; each upper air return vertical pipe 13 is connected with a compressor 14 through a pipeline; the compressor 14 is connected in parallel and then sequentially connected with a condenser 15, a liquid storage device 16, a flow control valve 17 and an evaporator 18 through pipelines; the outlet end of the evaporator 18 is communicated with the air inlet manifold 3; the distance between the lowest point of the bottom pipe wall of the transition elbow 10 and the inner bottom surface of the gas-liquid separation pipeline 2 is set to be twenty millimeters; the number of the liquid observation mirrors 5 arranged on the outer side wall of the end sealing cap 4 is two or more; the hole diameter of the oil return hole 11 is six millimeters; the lower air inlet vertical pipe 9 and the upper air return vertical pipe 13 are arranged in a mutually staggered manner in the horizontal direction, and the upper end surface of the lower air inlet vertical pipe 9 and the lower end surface of the upper air return vertical pipe 13 are both set to be inclined slope surfaces; the inclination angle of the inclined bevel face is set to thirty degrees.
When the device works practically, low-temperature low-pressure gas generated after evaporation of the evaporator and excessive unevaporated refrigerant liquid return to the gas separation component, the sectional area is suddenly increased, the gas flow rate is suddenly reduced, fine liquid drops carried in the gas can be settled to the bottom of the container, the refrigerant gas returns to the compressor through the pipeline, when the gas returns to the compressor at a higher flow rate, the gas flows through the transition elbow and forms siphon pressure difference with the inside of the container through the oil return hole, the settled refrigerant liquid and lubricating oil are slowly sucked into the gas return pipeline, so that the gas flows along with the gas and slowly returns to the compressor along the pipe wall, and the liquid has incompressibility, so that the device can prevent a large amount of liquid from returning to the compressor and causing damage to the compressor.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a pipeline vapour and liquid separator for on low temperature screw rod parallel unit which characterized in that: the gas-liquid separation device comprises a gas-liquid separation component (1), a gas-liquid separation pipeline (2), a gas inlet main pipe (3), an end sealing cap (4), a liquid viewing mirror (5), an upper end enclosure (6), a gas-liquid separation cavity (7), a lower sealing plate (8), a lower gas inlet vertical pipe (9), a transition bent pipe (10), an oil return hole (11), an end gas inlet pipe (12), an upper gas return vertical pipe (13), a compressor (14), a condenser (15), a liquid storage device (16), a flow control valve (17) and an evaporator (18), wherein the gas-liquid separation component (1) is symmetrically installed on the upper surface of the gas-liquid separation pipeline (2) in; the upper surface of the gas-liquid separation pipeline (2) positioned between the two gas distribution assemblies (1) is communicated with a gas inlet main pipe (3); end sealing caps (4) are mounted at two end parts of the gas-liquid separation pipeline (2); the outer side wall of the end sealing cap (4) is provided with a liquid viewing mirror (5); the gas distribution assembly (1) comprises an upper end enclosure (6), a gas distribution cavity (7), a lower sealing plate (8), a lower gas inlet vertical pipe (9), a transition bent pipe (10), an oil return hole (11), an end gas inlet pipe (12) and an upper gas return vertical pipe (13), wherein the upper end part of the gas distribution cavity (7) is provided with the upper end enclosure (6); a lower sealing plate (8) is arranged at the lower end part of the gas distribution cavity (7); the lower air inlet vertical pipe (9) vertically penetrates through the lower sealing plate (8) from bottom to top and is inserted into the air distribution cavity (7); the upper air return vertical pipe (13) vertically penetrates through the upper seal head (6) from top to bottom and is inserted into the air distribution cavity (7); the lower end part of the lower air inlet vertical pipe (9) is connected with an end air inlet pipe (12) through a transition bent pipe (10); an oil return hole (11) is formed in the bottom plate at the lowest point of the transition bent pipe (10); each upper air return vertical pipe (13) is connected with a compressor (14) through a pipeline; the compressor (14) is connected in parallel and then is sequentially connected with a condenser (15), a liquid storage device (16), a flow control valve (17) and an evaporator (18) through pipelines; the outlet end of the evaporator (18) is communicated with the air inlet manifold (3).
2. The pipeline gas-liquid separator used on the low-temperature screw parallel unit as claimed in claim 1, wherein: the distance between the lowest point of the bottom pipe wall of the transition elbow (10) and the inner bottom surface of the gas-liquid separation pipeline (2) is set to be twenty millimeters.
3. The pipeline gas-liquid separator used on the low-temperature screw parallel unit as claimed in claim 1, wherein: the number of the liquid sight glasses (5) arranged on the outer side wall of the end sealing cap (4) is two or more.
4. The pipeline gas-liquid separator used on the low-temperature screw parallel unit as claimed in claim 1, wherein: the diameter of the hole of the oil return hole (11) is six millimeters.
5. the pipeline gas-liquid separator used on the low-temperature screw parallel unit as claimed in claim 1, wherein: the lower air inlet vertical pipe (9) and the upper air return vertical pipe (13) are arranged in a staggered mode in the horizontal direction, and the upper end face of the lower air inlet vertical pipe (9) and the lower end face of the upper air return vertical pipe (13) are both set to be inclined slope surfaces.
6. the pipeline gas-liquid separator used on the low-temperature screw parallel unit as claimed in claim 5, wherein: the inclination angle of the inclined bevel face is set to be thirty degrees.
CN201910969454.2A 2019-10-12 2019-10-12 Pipeline gas-liquid separator for low-temperature screw parallel unit Pending CN110567206A (en)

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CN201910969454.2A CN110567206A (en) 2019-10-12 2019-10-12 Pipeline gas-liquid separator for low-temperature screw parallel unit

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Application Number Priority Date Filing Date Title
CN201910969454.2A CN110567206A (en) 2019-10-12 2019-10-12 Pipeline gas-liquid separator for low-temperature screw parallel unit

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Publication Number Publication Date
CN110567206A true CN110567206A (en) 2019-12-13

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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09250848A (en) * 1996-03-14 1997-09-22 Mitsubishi Heavy Ind Ltd Transversely long accumulator for freezer
US6598422B1 (en) * 2002-06-04 2003-07-29 Echelon International, Inc. Energy conserving refrigerant flow processor
CN101109589A (en) * 2006-07-17 2008-01-23 上海日立电器有限公司 Alternate pipe type liquid container
CN201066222Y (en) * 2007-06-28 2008-05-28 海信(北京)电器有限公司 Gas liquid separator and refrigerator possessing same
CN101206090A (en) * 2006-12-21 2008-06-25 上海日立电器有限公司 Airflow channel non-filter screen staggered-tuber type liquid container
CN101737331A (en) * 2008-11-10 2010-06-16 上海日立电器有限公司 Integral structure of liquid reservoir and oil separator of compressor
CN102645061A (en) * 2012-05-18 2012-08-22 四川同达博尔置业有限公司 Gas-liquid separator with heat-returning function and application method thereof to air conditioning unit
CN202470555U (en) * 2012-02-14 2012-10-03 浙江三花制冷集团有限公司 Vapor-liquid separator
CN104165484A (en) * 2014-08-06 2014-11-26 济南百福特制冷设备有限公司 Gas-liquid separator with evaporation efficiency improved
CN204593987U (en) * 2015-04-13 2015-08-26 南京天加空调设备有限公司 Gas divides liquid storage integrated device
CN105937820A (en) * 2016-06-08 2016-09-14 珠海格力电器股份有限公司 Gas-liquid separation device and steam compression circulation system with same
CN206973959U (en) * 2017-07-03 2018-02-06 嵊州市致远焊接制品有限公司 A kind of efficient reservoir
CN207622302U (en) * 2018-04-24 2018-07-17 山东燠神能源科技有限公司 A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator
CN207741387U (en) * 2017-12-08 2018-08-17 青岛开拓隆海制冷配件有限公司 A kind of gas-liquid separator of dissimilar material joining liquid back pipe structure
CN210718236U (en) * 2019-10-12 2020-06-09 江苏星星家电科技有限公司 Pipeline gas-liquid separator for low-temperature screw parallel unit

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09250848A (en) * 1996-03-14 1997-09-22 Mitsubishi Heavy Ind Ltd Transversely long accumulator for freezer
US6598422B1 (en) * 2002-06-04 2003-07-29 Echelon International, Inc. Energy conserving refrigerant flow processor
CN101109589A (en) * 2006-07-17 2008-01-23 上海日立电器有限公司 Alternate pipe type liquid container
CN101206090A (en) * 2006-12-21 2008-06-25 上海日立电器有限公司 Airflow channel non-filter screen staggered-tuber type liquid container
CN201066222Y (en) * 2007-06-28 2008-05-28 海信(北京)电器有限公司 Gas liquid separator and refrigerator possessing same
CN101737331A (en) * 2008-11-10 2010-06-16 上海日立电器有限公司 Integral structure of liquid reservoir and oil separator of compressor
CN202470555U (en) * 2012-02-14 2012-10-03 浙江三花制冷集团有限公司 Vapor-liquid separator
CN102645061A (en) * 2012-05-18 2012-08-22 四川同达博尔置业有限公司 Gas-liquid separator with heat-returning function and application method thereof to air conditioning unit
CN104165484A (en) * 2014-08-06 2014-11-26 济南百福特制冷设备有限公司 Gas-liquid separator with evaporation efficiency improved
CN204593987U (en) * 2015-04-13 2015-08-26 南京天加空调设备有限公司 Gas divides liquid storage integrated device
CN105937820A (en) * 2016-06-08 2016-09-14 珠海格力电器股份有限公司 Gas-liquid separation device and steam compression circulation system with same
CN206973959U (en) * 2017-07-03 2018-02-06 嵊州市致远焊接制品有限公司 A kind of efficient reservoir
CN207741387U (en) * 2017-12-08 2018-08-17 青岛开拓隆海制冷配件有限公司 A kind of gas-liquid separator of dissimilar material joining liquid back pipe structure
CN207622302U (en) * 2018-04-24 2018-07-17 山东燠神能源科技有限公司 A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator
CN210718236U (en) * 2019-10-12 2020-06-09 江苏星星家电科技有限公司 Pipeline gas-liquid separator for low-temperature screw parallel unit

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Application publication date: 20191213