CN106766426B - Gas-liquid separator of air conditioner - Google Patents
Gas-liquid separator of air conditioner Download PDFInfo
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- CN106766426B CN106766426B CN201611189860.XA CN201611189860A CN106766426B CN 106766426 B CN106766426 B CN 106766426B CN 201611189860 A CN201611189860 A CN 201611189860A CN 106766426 B CN106766426 B CN 106766426B
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- gas
- outlet
- liquid separator
- capillary
- inlet
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- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- 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
- F25B2500/00—Problems to be solved
- F25B2500/06—Damage
Abstract
The invention discloses a gas-liquid separator of an air conditioner, which comprises a shell (1), an inlet pipe (2) and an outlet pipe (3), wherein an outlet of the inlet pipe (2) and an inlet of the outlet pipe (3) are both positioned in a cavity of the shell (1), a shunt joint (4) and a plurality of capillary tubes (5) are also arranged in the cavity of the shell (1), an outlet of the inlet pipe (2) is communicated with an inlet of the shunt joint (4), and each outlet of the shunt joint (4) is communicated with an inlet of one capillary tube (5). The gas-liquid separator of the air conditioner can prevent liquid from impacting the compressor as far as possible under various conditions, thereby improving the stability and reliability of the compressor.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a gas-liquid separator of an air conditioner.
Background
In the air conditioning system, a gas-liquid separator is arranged between an evaporator and a compressor and used for separating gas-liquid two-phase refrigerants coming out of the evaporator, and unevaporated liquid refrigerants are stored in the gas-liquid separator, so that the gaseous refrigerants entering the compressor are ensured, and the compressor is prevented from being damaged by liquid impact on the compressor.
The gas-liquid separator in the prior art comprises a shell, an inlet pipe and an outlet pipe, wherein an outlet of the inlet pipe is positioned at the lower part of a cavity of the shell, an inlet of the outlet pipe is positioned at the upper part of the cavity of the shell, a gas-liquid two-phase refrigerant enters the cavity of the shell from an outlet of the inlet pipe, a liquid refrigerant is accumulated at the lower part of the cavity of the shell, and a gaseous refrigerant is discharged from an inlet of the outlet pipe at the upper part of the cavity of the shell.
Although the air conditioner is provided with an oil separator at the outlet of the compressor, part of lubricating oil inevitably enters the system through the oil separator, and the lubricating oil circulated through the system finally returns to the gas-liquid separator for storage. In order to avoid the oil shortage of the compressor, the oil in the gas-liquid separator is returned to the compressor, and an oil return hole is arranged at the bottom of the gas-liquid separator. However, after the oil return hole is opened, the refrigerant oil returns to the compressor, and simultaneously, the liquid refrigerant in the gas-liquid separator also enters the compressor along with the oil, so that the condition that the refrigerant hits the compressor is caused, and how to realize that the gas-liquid separator only returns oil and does not return liquid is always a technical problem which is desired to be solved but can not be solved by technical personnel in the industry.
In addition, the multi-split air conditioner generally includes a huge system composed of several external units, and the refrigerant is gradually added during operation and debugging, but the amount of the added refrigerant is not determined, and the addition is only tried according to the experience of technicians, and the volume of the gas-liquid separator is limited, so that the liquid impact on the compressor can occur once the amount of the added refrigerant exceeds the volume of the gas-liquid separator.
In the winter defrosting mode, the refrigerant is liquefied and defrosted in the outdoor unit, but the indoor unit does not exchange heat, so that the amount of the liquid refrigerant is large, and the liquid refrigerant hits the compressor after exceeding the volume of the gas-liquid separator.
In addition, in the multi-outdoor unit, if the load is small and only one outdoor unit is started, the outdoor unit needs to suck the refrigerants stored in other outdoor unit modules and indoor unit modules which are not started, and the refrigerants in the outdoor unit modules are liquid naturally, so that the liquid refrigerants are too much and hit the compressor.
In summary, under various conditions, the gas-liquid separator may fail, resulting in liquid impact on the compressor and reduced stability and reliability of compressor operation.
Disclosure of Invention
The invention aims to provide a gas-liquid separator of an air conditioner, which can prevent liquid from impacting a compressor as much as possible under various conditions so as to improve the stability and reliability of the compressor.
The invention provides a gas-liquid separator of an air conditioner, which comprises a shell, an inlet pipe and an outlet pipe, wherein an outlet of the inlet pipe and an inlet of the outlet pipe are both positioned in a cavity of the shell, a shunt joint and a plurality of capillary tubes are also arranged in the cavity of the shell, an outlet of the inlet pipe is communicated with an inlet of the shunt joint, and each outlet of the shunt joint is communicated with an inlet of one capillary tube.
After adopting the structure, compared with the prior art, the gas-liquid separator of the air conditioner has the following advantages.
The gas-liquid two-phase refrigerant in the inlet pipe is divided by the flow dividing joint and enters each capillary tube, the capillary tubes are throttled to enable the liquid refrigerant to flash and change from a liquid state to a gas state, and most of the refrigerant entering the cavity of the gas-liquid separator is in the gas state; therefore, when the gas-liquid separator returns oil, the refrigerant is gradually increased during debugging, the defrosting is carried out in winter, or the refrigerant is sucked from other modules before the single outdoor unit is started, the hidden danger of the liquid impact compressor is reduced to the lowest, and the stability and the reliability of the operation of the compressor are improved.
Preferably, each capillary tube is s-shaped, and the outlet of each capillary tube is opposite to the inner side wall of the cavity of the shell, so that the length of the s-shaped capillary tube is effectively increased, the flash evaporation amount of liquid refrigerants is increased, the number of the liquid refrigerants entering the gas-liquid separator is further reduced, meanwhile, the outlet of each capillary tube is opposite to the inner side wall of the cavity of the shell, the refrigerants sprayed out from the outlet of each capillary tube collide with the inner side wall, the flash evaporation amount of the refrigerants can be further increased, and the stability and the reliability of the compressor are further increased.
As still another preferred, every capillary is buckled into the spiral, and such design, at first lengthened the length of capillary, is more favorable to liquid refrigerant flash, and the refrigerant orbit is the spiral, can increase the friction with the capillary under the centrifugal force effect moreover, is more favorable to liquid refrigerant flash.
As an improvement, each capillary tube is bent into an L shape, all the capillary tubes are distributed in a radial shape, and the lower part of the shunt joint is connected with a check ring for blocking a refrigerant sprayed out from a lower outlet of the capillary tube through a connecting rod; therefore, each strand of refrigerant sprayed from the capillary tube directly impacts the retainer ring along the axial direction, the flash evaporation amount of the liquid refrigerant is further improved, and the stability and the reliability of the compressor are further improved.
Drawings
Fig. 1 is a front sectional structural schematic view of a gas-liquid separator of an air conditioner of the present invention.
Fig. 2 is a schematic front view showing a capillary tube of a gas-liquid separator of an air conditioner according to the present invention.
Fig. 3 is a schematic front view showing another capillary tube of the gas-liquid separator of the air conditioner according to the present invention.
Fig. 4 is a front sectional structural schematic diagram of the gas-liquid separator of the air conditioner after installing the check ring.
Fig. 5 isbase:Sub>A schematic sectional structure view alongbase:Sub>A-base:Sub>A direction of fig. 4.
Shown in the figure are 1, a shell, 2, an inlet pipe, 3, an outlet pipe, 4, a flow dividing joint, 5, a capillary pipe, 6, a connecting rod, 7 and a retainer ring.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1, 2, 3, 4 and 5, the gas-liquid separator of the air conditioner of the present invention includes a housing 1, an inlet pipe 2 and an outlet pipe 3, an outlet of the inlet pipe 2 and an inlet of the outlet pipe 3 are both located in a chamber of the housing 1, a flow dividing joint 4 and a plurality of capillary tubes 5 are further disposed in the chamber of the housing 1, an outlet of the inlet pipe 2 is communicated with an inlet of the flow dividing joint 4, and each outlet of the flow dividing joint 4 is communicated with an inlet of one capillary tube 5.
As shown in fig. 2, each capillary 5 may be s-shaped, with the outlet of the capillary 5 facing the inner side wall of the chamber of the housing 1.
As shown in fig. 3, each capillary 5 may also be bent into a spiral shape.
Of course, as shown in fig. 4 and 5, each capillary 5 may also be bent into an L shape, that is, the L-shaped capillary 5 is composed of an upper vertical tube and a lower horizontal tube, the lower horizontal tubes of all the capillaries 5 are radially distributed, and the lower portion of the tap 4 is connected to a retainer ring 7 for blocking the refrigerant jetted from the outlet of the lower horizontal tube of the capillary 5 through a connecting rod 6.
Claims (1)
1. The utility model provides a vapour and liquid separator of air conditioner, it includes casing (1), advances pipe (2) and exit tube (3), advances the export of pipe (2) and the entry of exit tube (3) and all is located the cavity of casing (1), its characterized in that: a shunt joint (4) and a plurality of capillary tubes (5) are further arranged in the cavity of the shell (1), the outlets of the inlet tubes (2) are communicated with the inlets of the shunt joint (4), and each outlet of the shunt joint (4) is communicated with the inlet of one capillary tube (5); each capillary (5) is in an L shape with an outlet end horizontally facing the side wall of the shell; and all the capillary tubes (5) are distributed in a radial shape, and the lower part of the flow dividing joint (4) is connected with a check ring (7) used for blocking the refrigerant sprayed out from the lower outlet of the capillary tube (5) through a connecting rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189860.XA CN106766426B (en) | 2016-12-21 | 2016-12-21 | Gas-liquid separator of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189860.XA CN106766426B (en) | 2016-12-21 | 2016-12-21 | Gas-liquid separator of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106766426A CN106766426A (en) | 2017-05-31 |
| CN106766426B true CN106766426B (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611189860.XA Active CN106766426B (en) | 2016-12-21 | 2016-12-21 | Gas-liquid separator of air conditioner |
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| Country | Link |
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| CN (1) | CN106766426B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008241064A (en) * | 2007-03-26 | 2008-10-09 | Matsushita Electric Ind Co Ltd | Gas-liquid separator for air conditioner |
| CN203908140U (en) * | 2014-05-29 | 2014-10-29 | 广东美的集团芜湖制冷设备有限公司 | Flash evaporator and air conditioner system |
| CN104034098A (en) * | 2014-07-04 | 2014-09-10 | 珠海格力电器股份有限公司 | Air conditioner and liquid inlet and flow equalizing device thereof |
| CN105546892B (en) * | 2015-12-21 | 2018-11-30 | 珠海格力电器股份有限公司 | Flash vessel and air-conditioning system |
| CN205641702U (en) * | 2016-04-29 | 2016-10-12 | 广东美的制冷设备有限公司 | Throttle flash vessel and have its air conditioner |
| CN206281262U (en) * | 2016-12-21 | 2017-06-27 | 宁波奥克斯电气股份有限公司 | The gas-liquid separator of air-conditioning |
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2016
- 2016-12-21 CN CN201611189860.XA patent/CN106766426B/en active Active
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| CN106766426A (en) | 2017-05-31 |
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