CN107314582B - Flash evaporator and water chilling unit - Google Patents

Flash evaporator and water chilling unit Download PDF

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Publication number
CN107314582B
CN107314582B CN201710556882.3A CN201710556882A CN107314582B CN 107314582 B CN107314582 B CN 107314582B CN 201710556882 A CN201710556882 A CN 201710556882A CN 107314582 B CN107314582 B CN 107314582B
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CN
China
Prior art keywords
refrigerant
filter screen
cavity
oil
shell
Prior art date
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Active
Application number
CN201710556882.3A
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Chinese (zh)
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CN107314582A (en
Inventor
钟丹艳
罗炽亮
王亚飞
李莹
吴宏择
张丙
王双亮
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Zhuhai Gree Green Control Technology Co ltd
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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Priority to CN201710556882.3A priority Critical patent/CN107314582B/en
Publication of CN107314582A publication Critical patent/CN107314582A/en
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Publication of CN107314582B publication Critical patent/CN107314582B/en
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Classifications

    • 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
    • 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
    • F25B43/02Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
    • 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
    • F25B2400/00General 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
    • F25B2400/23Separators

Abstract

The invention discloses a flash device and a water chilling unit, wherein the flash device comprises: the shell is internally provided with a containing cavity, and the shell is respectively provided with a refrigerant inlet, a gaseous refrigerant outlet, a liquid refrigerant outlet and an oil return port which are communicated with the containing cavity; the first filter screen is arranged in the shell and is surrounded with the inner wall of the shell to form an oil cavity, and the oil cavity is communicated with the oil return port. Through set up first filter screen in the holding chamber of casing and enclose into the oil pocket to make the refrigerant get into after holding the chamber, can filter refrigerant and lubricating oil separation in with the refrigerant through first filter screen, make the flash vessel possess the function of oil separator simultaneously, two kinds of equipment unite two into one, not only simplified complete machine structure, still saved installation space, it is more convenient to make installation and maintenance.

Description

Flash evaporator and water chilling unit
Technical Field
The invention relates to the technical field of water chilling units, in particular to a flash generator and a water chilling unit.
Background
In a large-sized water chilling unit, the flash evaporator is a necessary system device, plays a role in supplementing air for a compressor and reducing the temperature of liquid refrigerant, and plays a very important role in the whole refrigeration cycle system. The oil separator is used for separating lubricating oil in the gaseous refrigerant discharged by the refrigeration compressor so as to ensure the safe and efficient operation of the device, and the two have different functions and perform their own roles. The existing flash evaporator and the existing oil separator have single functions, so that the problems of complex structure of the whole machine, large occupied space of equipment, inconvenient installation and maintenance and the like are caused.
Disclosure of Invention
The invention discloses a flash evaporator and a water chilling unit, which solve the problems of complex structure, large occupied space of equipment and inconvenient installation and maintenance of the whole machine caused by single functions of the traditional flash evaporator and an oil separator.
According to one aspect of the present invention, there is disclosed a flash device comprising: the shell is internally provided with a containing cavity, and the shell is respectively provided with a refrigerant inlet, a gaseous refrigerant outlet, a liquid refrigerant outlet and an oil return port which are communicated with the containing cavity; the first filter screen is arranged in the shell and is surrounded with the inner wall of the shell to form an oil cavity, and the oil cavity is communicated with the oil return port.
Further, the lower end of the first filter screen is in sealing arrangement with the bottom surface of the shell, the side edge of the upper end of the first filter screen is in sealing arrangement with the inner wall of the shell, and the upper surface of the first filter screen is lower than the refrigerant inlet.
Further, the flash evaporator further comprises a second filter screen, part of the side edges of the second filter screen are in sealing arrangement with the first filter screen, the other side edges of the second filter screen are in sealing arrangement with the inner side wall of the shell, the second filter screen and the first filter screen divide the accommodating cavity into a gas-liquid separation cavity, a refrigerant cavity and an oil cavity, the gas-liquid separation cavity is communicated with the refrigerant inlet and the gaseous refrigerant outlet, and the refrigerant cavity is communicated with the liquid refrigerant outlet.
Further, the diameter of the filter holes of the second filter screen is larger than that of the filter holes of the first filter screen.
Further, the upper surface of the second filter screen is in the same plane with the upper surface of the first filter screen.
Further, the first filter screen and the inner wall of the shell form the oil cavity independently, and the whole second filter screen, part of the first filter screen and the inner wall of the shell form the refrigerant cavity; the first filter screen is arranged to allow lubricating oil to pass through and block refrigerant, and lubricating oil in the refrigerant can enter the oil cavity through the first filter screen.
Further, the flash evaporator further comprises an oil suction device, and the oil suction device is arranged in the oil cavity.
Further, the first filter screen and the inner wall of the shell form the refrigerant cavity independently, and the whole second filter screen, part of the first filter screen and the inner wall of the shell form the oil cavity; the first filter screen is arranged to allow the refrigerant to pass through and block lubricating oil, and the refrigerant in the refrigerant can enter the refrigerant cavity through the first filter screen.
The flash evaporator further comprises a suction device, and the suction device is arranged in the refrigerant cavity.
Further, a liquid baffle and a gas-liquid separation assembly are arranged on the inner wall of the gas-liquid separation cavity, the liquid baffle is arranged above the refrigerant inlet, the gas-liquid separation assembly is arranged above the liquid baffle, and the liquid baffle and the gas-liquid separation assembly form an S-shaped channel in the gas-liquid separation cavity.
According to another aspect of the invention, a water chiller is disclosed, comprising the flash device.
According to the invention, the first filter screen is arranged in the accommodating cavity of the shell to enclose the oil cavity, so that after the refrigerant enters the accommodating cavity, the refrigerant in the refrigerant can be separated from the lubricating oil through the filtration of the first filter screen, and the flash evaporator simultaneously has the function of an oil separator.
Drawings
FIG. 1 is a schematic diagram of a flash memory device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a flash memory device according to another embodiment of the present invention;
legend: 1. a housing; 11. a refrigerant inlet; 12. a gaseous refrigerant outlet; 13. a liquid refrigerant outlet; 14. an oil return port; 2. a first filter screen; 3. a second filter screen; 4. a gas-liquid separation chamber; 5. a refrigerant chamber; 6. an oil chamber; 7. an oil absorbing device; 8. a suction device; 9. a liquid baffle; 10. and a gas-liquid separation assembly.
Detailed Description
The invention is further illustrated, but is not limited to, the following examples.
As shown in fig. 1, the invention discloses a flash evaporator, which comprises a shell 1 and a first filter screen, wherein a containing cavity is arranged in the shell 1, and a refrigerant inlet 11, a gaseous refrigerant outlet 12, a liquid refrigerant outlet 13 and an oil return port 14 which are communicated with the containing cavity are respectively arranged on the shell 1; the first filter screen 2 is arranged in the shell 1 and is surrounded with the inner wall of the shell 1 to form an oil cavity 6, and the oil cavity 6 is communicated with the oil return port 14.
In the above embodiment, after the refrigerant from the condenser passes through the throttling element, the refrigerant is precipitated through the action of gravity through the refrigerant inlet 11, filtered through the first filter screen 2, the lubricating oil in the refrigerant is separated from the refrigerant, the lubricating oil enters the oil cavity 6, the lubricating oil entering the oil cavity 6 returns to the compressor through the oil return port 14, and the rest of the refrigerant leaves the flash evaporator through the liquid refrigerant outlet 13 and enters the evaporator.
Through set up first filter screen 2 in housing 1 hold the intracavity and enclose into oil pocket 6 to make the refrigerant get into and hold the chamber after, can filter refrigerant and lubricating oil separation in the refrigerant through first filter screen 2, make the flash vessel possess the function of oil separator simultaneously, two kinds of equipment unite two into one, not only simplified complete machine structure, still saved installation space, make installation and maintenance more convenient.
In the above embodiment, the longitudinal section of the first filter screen 2 is of an inverted L-shaped structure, the lower end is in sealing arrangement with the bottom surface of the housing 1, the side edge of the upper end of the first filter screen 2 is in sealing arrangement with the inner wall of the housing 1, and the upper surface of the first filter screen 2 is lower than the refrigerant inlet 11, so that the filtering effect is ensured by sealing and matching the first filter screen 2 with the inner wall of the housing 1, liquid refrigerant is prevented from entering the oil cavity 6, and the oil distributing efficiency is improved.
In the above embodiment, the flash evaporator further includes a second filter screen 3, the diameter of the filter hole of the second filter screen 3 is larger than that of the filter hole of the first filter screen 2, a part of the side edges of the second filter screen 3 are sealed with the first filter screen 2, the other side edges are sealed with the inner side wall of the housing 1, the second filter screen 3 and the first filter screen 2 divide the accommodating cavity into a gas-liquid separation cavity 4, a refrigerant cavity 5 and the oil cavity 6, the gas-liquid separation cavity 4 is communicated with the refrigerant inlet 11 and the gaseous refrigerant outlet 12, and the refrigerant cavity 5 is communicated with the liquid refrigerant outlet 13.
Through setting up first filter screen 2 between oil pocket 6 and gas-liquid separation chamber 4, make liquid refrigerant in the gas-liquid separation chamber 4 separate refrigerant and lubricating oil through first filter screen 2, the refrigerant gets into refrigerant chamber 5 in, get into the evaporimeter through liquid refrigerant export 13, lubricating oil gets into in the oil pocket 6, return to the compressor through oil return port 14, thereby make the flash vessel possess the function of oil separator simultaneously, two kinds of equipment combine into one, not only simplified complete machine structure, still saved installation space, it is more convenient to make installation and maintenance. In addition, the upper surface of the second filter screen 3 and the upper surface of the first filter screen 2 are in the same plane, so that the gas-liquid separation cavity 4 is located above the refrigerant cavity 5 and the oil cavity 6, the relative position of the gaseous refrigerant outlet 12 and the liquid refrigerant outlet 13 is increased, and the gas-liquid separation cavity 4 is arranged above the refrigerant cavity 5 and the oil cavity 6, so that the possibility of mixing the gaseous refrigerant and the liquid refrigerant at one outlet is reduced, and the efficiency of gas-liquid separation of the refrigerant is improved.
In the above embodiment, the first filter 2 alone forms the oil chamber 6 with the inner wall of the housing 1, and the entirety of the second filter 3, a portion of the first filter 2, and the inner wall of the housing 1 form the refrigerant chamber 5; the first filter screen 2 is configured to allow the lubricant to pass through and block the refrigerant, and the lubricant in the refrigerant can enter the oil cavity 6 through the first filter screen 2.
Through setting up first filter screen 2 between oil pocket 6 and gas-liquid separation chamber 4, make some lubricating oil in the liquid refrigerant in the gas-liquid separation chamber 4 get into oil pocket 6 through first filter screen 2 directly, realize preliminary filtration, the filtration pore diameter of second filter screen 3 is greater than the filtration pore diameter of first filter screen 2, the liquid refrigerant of remainder passes through behind the filtration impurity of second filter screen 3, gets into in refrigerant chamber 5, because first filter screen 2 sets up to allow lubricating oil to pass through and block the refrigerant, first filter screen 2 filtration pore diameter is between lubricating oil molecule and refrigerant molecule, and lubricating oil molecule is less than refrigerant molecule, through setting up in first filter screen 2 between oil pocket 6 and refrigerant chamber 5, lubricating oil in the refrigerant chamber 5 can not pass through first filter screen 2, thereby realize the further separation of refrigerant and lubricating oil, the lubricating oil in the oil pocket 6 returns to the compressor refrigerant through oil return port 14, and the refrigerant in the refrigerant chamber 5 gets into the evaporimeter through liquid export 13, makes the engine mounting and the refrigerant that can not have the easy to have both sides simultaneously, and the two-up filter screen 3 has the easy to install, and the compressor has also prevented that the refrigerant system from having improved the performance and the efficiency is easy to install, the two-up and has the engine is easy to be more easy to install.
In the above embodiment, the flash evaporator further includes the oil suction device 7, the oil suction device 7 is disposed in the oil cavity 6, for controlling the pressure in the oil cavity 6 to be smaller than the pressure in the refrigerant cavity 5, by disposing the oil suction device 7 in the oil cavity 6, for example, a small oil pump, a pressure difference is formed between the oil cavity 6 and the refrigerant cavity 5, the lubricating oil in the refrigerant cavity 5 permeates into the oil cavity 6 due to the pressure difference, because the lubricating oil molecules are smaller than the filtering holes of the first filter screen 2, the lubricating oil can pass through the first filter screen 2 to enter the oil cavity 6, and the refrigerant molecules with larger molecules remain in the refrigerant cavity 5 due to the blocking of the first filter screen 2.
In the embodiment shown in fig. 2, the first filter 2 alone forms the refrigerant chamber 5 with the inner wall of the housing 1, and the entirety of the second filter 3, a portion of the first filter 2, and the inner wall of the housing 1 form the oil chamber 6; the first filter screen 2 is configured to allow the refrigerant to pass through and block the lubricating oil, and the refrigerant in the refrigerant can enter the refrigerant cavity 5 through the first filter screen 2.
Through setting up first filter screen 2 between oil pocket 6 and gas-liquid separation chamber 4, make the partial refrigerant in the liquid refrigerant in the gas-liquid separation chamber 4 get into refrigerant chamber 5 through first filter screen 2 directly, realize preliminary filtration, the filtration pore diameter of second filter screen 3 is greater than the filtration pore diameter of first filter screen 2, the liquid refrigerant of remainder passes through behind the filtration impurity of second filter screen 3, gets into in oil pocket 6, because first filter screen 2 sets up to allow the refrigerant to pass through and block lubricating oil, and first filter screen 2 filtration pore aperture is between lubricating oil molecule and refrigerant molecule, and under the circumstances that refrigerant molecule is less than lubricating oil molecule, through setting up in first filter screen 2 between oil pocket 6 and refrigerant chamber 5, refrigerant in oil pocket 6 can't pass through first filter screen 2, thereby realize the further separation of refrigerant and lubricating oil in refrigerant chamber 5, in entering the evaporimeter through liquid refrigerant export 13, and lubricating oil in oil pocket 6 returns to the compressor through oil return opening 14, and make the complete machine, and the compressor has not had the filter screen 3 simultaneously, and the compressor has been simplified to have both sides, and the compressor has been installed to the complete machine, simultaneously, the compressor has also has prevented the efficiency has been improved, and the system has been more easy to install, and has the compressor has the two-to be more easy to install, and has the compressor has the system has the advantages.
In the above embodiment, the flash evaporator further includes a suction device 8, where the suction device 8 is disposed in the refrigerant cavity 5, and is used to control the pressure in the refrigerant cavity 5 to be less than the pressure in the oil cavity 6, by disposing the suction device 8 in the refrigerant cavity 5, for example, a small pump, a pressure difference is formed between the refrigerant cavity 5 and the oil cavity 6, the liquid refrigerant in the oil cavity 6 permeates into the refrigerant cavity 5 due to the pressure difference, and since the refrigerant molecules are smaller than the filter holes of the first filter screen 2, the refrigerant can pass through the first filter screen 2 to enter the refrigerant cavity 5, and the lubricant molecules with larger molecules remain in the oil cavity 6 due to the obstruction of the first filter screen 2. It should be noted that, although the separation of the refrigerant and the lubricating oil can be realized by diffusion without the suction device 8, the separation efficiency is relatively low, and the separation efficiency of the refrigerant and the lubricating oil can be increased by arranging the suction device 8, so that the two devices are combined into one, the whole structure is simplified, the installation space is saved, and the installation and the maintenance are more convenient.
In the above embodiment, the inner wall of the gas-liquid separation chamber 4 is provided with the liquid baffle 9 and the gas-liquid separation assembly 10, the liquid baffle 9 is disposed above the refrigerant inlet 11, the gas-liquid separation assembly 10 is disposed above the liquid baffle 9, and the liquid baffle 9 and the gas-liquid separation assembly 10 form an S-shaped channel in the gas-liquid separation chamber 4. Through setting up fender liquid 9 and gas-liquid separation subassembly 10, make gaseous refrigerant to gaseous refrigerant export 12's stroke lengthen, the effect of rethread gas-liquid separation subassembly 10 prevents effectively that liquid refrigerant from exporting from gaseous refrigerant export 12, the gas-liquid two-phase refrigerant that comes out from the condenser gets into the flash vessel after throttling element, under the interact of gravity effect, fender liquid and gas-liquid separation subassembly, gaseous refrigerant gets out from gaseous export, gets into the compressor, improves refrigerant gas-liquid separation's efficiency.
In addition, the flash evaporator can adopt a vertical structure, so that the relative positions of the gaseous refrigerant outlet 12 and the liquid refrigerant outlet 13 are increased, and the gas-liquid separation cavity 4 is arranged above the refrigerant cavity 5 and the oil cavity 6, so that the possibility that the gaseous refrigerant and the liquid refrigerant are mixed at one outlet is reduced, and the gas-liquid separation efficiency of the refrigerant is improved.
The invention also discloses a water chilling unit comprising the flash generator.
It should be understood that the above-described embodiments of the present invention are provided by way of example only and are not intended to limit the scope of the invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes or modifications which come within the spirit of the invention are desired to be protected.

Claims (9)

1. A flash device, comprising:
the device comprises a shell (1), wherein a containing cavity is formed in the shell (1), and a refrigerant inlet (11), a gaseous refrigerant outlet (12), a liquid refrigerant outlet (13) and an oil return port (14) which are communicated with the containing cavity are respectively arranged on the shell (1);
the first filter screen (2) is arranged in the shell (1) and surrounds an oil cavity (6) with the inner wall of the shell (1), and the oil cavity (6) is communicated with the oil return port (14);
the lower end of the first filter screen (2) is arranged in a sealing way with the bottom surface of the shell (1), the side edge of the upper end of the first filter screen (2) is arranged in a sealing way with the inner wall of the shell (1), and the upper surface of the first filter screen (2) is lower than the refrigerant inlet (11);
the flash evaporator further comprises a second filter screen (3), part of the second filter screen (3) is arranged along the first filter screen (2) in a sealing mode, the rest of the second filter screen is arranged along the inner side wall of the shell (1) in a sealing mode, the second filter screen (3) and the first filter screen (2) divide the accommodating cavity into a gas-liquid separation cavity (4), a refrigerant cavity (5) and an oil cavity (6), the gas-liquid separation cavity (4) is communicated with the refrigerant inlet (11) and the gaseous refrigerant outlet (12), and the refrigerant cavity (5) is communicated with the liquid refrigerant outlet (13).
2. The flash device according to claim 1, wherein the second filter screen (3) has a larger filter aperture diameter than the first filter screen (2).
3. The flash according to claim 1, wherein the upper surface of the second filter (3) is in the same plane as the upper surface of the first filter (2).
4. The flash of light of claim 1, wherein,
the first filter screen (2) and the inner wall of the shell (1) form the oil cavity (6) independently, and the whole second filter screen (3), part of the first filter screen (2) and the inner wall of the shell (1) form the refrigerant cavity (5);
the first filter screen (2) is arranged to allow lubricating oil to pass through and block refrigerant, and the lubricating oil in the refrigerant can enter the oil cavity (6) through the first filter screen (2).
5. The flash according to claim 4, further comprising oil suction means (7), said oil suction means (7) being arranged inside said oil chamber (6).
6. The flash of light of claim 1, wherein,
the first filter screen (2) and the inner wall of the shell (1) form the refrigerant cavity (5) independently, and the whole second filter screen (3), part of the first filter screen (2) and the inner wall of the shell (1) form the oil cavity (6);
the first filter screen (2) is arranged to allow the refrigerant to pass through and block lubricating oil, and the refrigerant in the refrigerant can enter the refrigerant cavity (5) through the first filter screen (2).
7. The flash according to claim 6, further comprising a suction device (8), said suction device (8) being arranged within said refrigerant chamber (5).
8. The flash evaporator according to claim 1, wherein a liquid baffle (9) and a gas-liquid separation assembly (10) are arranged on the inner wall of the gas-liquid separation cavity (4), the liquid baffle (9) is arranged above the refrigerant inlet (11), the gas-liquid separation assembly (10) is arranged above the liquid baffle (9), and the liquid baffle (9) and the gas-liquid separation assembly (10) form an S-shaped channel in the gas-liquid separation cavity (4).
9. A chiller comprising a flash vessel as claimed in any one of claims 1 to 8.
CN201710556882.3A 2017-07-10 2017-07-10 Flash evaporator and water chilling unit Active CN107314582B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710556882.3A CN107314582B (en) 2017-07-10 2017-07-10 Flash evaporator and water chilling unit

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Application Number Priority Date Filing Date Title
CN201710556882.3A CN107314582B (en) 2017-07-10 2017-07-10 Flash evaporator and water chilling unit

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CN107314582A CN107314582A (en) 2017-11-03
CN107314582B true CN107314582B (en) 2023-08-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113091356A (en) * 2021-03-24 2021-07-09 青岛海尔空调器有限总公司 Lubricating oil separating device

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JP3163312B2 (en) * 1994-10-06 2001-05-08 三菱電機株式会社 Accumulator for refrigeration cycle and method for producing the same
JP2002357376A (en) * 2001-06-01 2002-12-13 Mitsubishi Electric Corp Oil separator
JP2003240366A (en) * 2002-02-21 2003-08-27 Mitsubishi Electric Corp Refrigerating air conditioner
JP2003322436A (en) * 2002-04-25 2003-11-14 Mitsubishi Electric Corp Refrigerating cycle device
JP2004232996A (en) * 2003-01-31 2004-08-19 Denso Corp Refrigeration cycle device
JP2006250462A (en) * 2005-03-11 2006-09-21 Matsushita Electric Ind Co Ltd Oil separator and refrigerating cycle device using the same
JP2007240054A (en) * 2006-03-08 2007-09-20 Sanden Corp Cold system
JP2009133566A (en) * 2007-11-30 2009-06-18 Calsonic Kansei Corp Gas-liquid separator
CN207197010U (en) * 2017-07-10 2018-04-06 珠海格力电器股份有限公司 Flash evaporation and handpiece Water Chilling Units

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3163312B2 (en) * 1994-10-06 2001-05-08 三菱電機株式会社 Accumulator for refrigeration cycle and method for producing the same
JPH10267472A (en) * 1997-03-26 1998-10-09 Mitsubishi Electric Corp Accumulator for refrigerating cycle
JP2001099527A (en) * 1999-09-29 2001-04-13 Hitachi Ltd Oil separator, freezing cycle using oil separator, closed type scroll compressor and frreezing cycle using scroll compressor
JP2002357376A (en) * 2001-06-01 2002-12-13 Mitsubishi Electric Corp Oil separator
JP2003240366A (en) * 2002-02-21 2003-08-27 Mitsubishi Electric Corp Refrigerating air conditioner
JP2003322436A (en) * 2002-04-25 2003-11-14 Mitsubishi Electric Corp Refrigerating cycle device
JP2004232996A (en) * 2003-01-31 2004-08-19 Denso Corp Refrigeration cycle device
JP2006250462A (en) * 2005-03-11 2006-09-21 Matsushita Electric Ind Co Ltd Oil separator and refrigerating cycle device using the same
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CN207197010U (en) * 2017-07-10 2018-04-06 珠海格力电器股份有限公司 Flash evaporation and handpiece Water Chilling Units

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Effective date of registration: 20231030

Address after: 519070, 1st Floor, Building 7, No. 789 Jinji Road, Qianshan, Zhuhai, Guangdong Province

Patentee after: Zhuhai Gree Green Control Technology Co.,Ltd.

Address before: 519070 No. six Jinji Road West, Zhuhai, Guangdong

Patentee before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI