CN115406142A - Gas-liquid separator for automobile air conditioner heat management system - Google Patents

Gas-liquid separator for automobile air conditioner heat management system Download PDF

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Publication number
CN115406142A
CN115406142A CN202210931791.4A CN202210931791A CN115406142A CN 115406142 A CN115406142 A CN 115406142A CN 202210931791 A CN202210931791 A CN 202210931791A CN 115406142 A CN115406142 A CN 115406142A
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China
Prior art keywords
chamber
gas
liquid
baffle
passing
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CN202210931791.4A
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Chinese (zh)
Inventor
卢轩
余凯华
吴炜
贝嘉杰
高文信
刘乾
潘孝勇
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Ningbo Tuopu Group Co Ltd
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Ningbo Tuopu Group Co Ltd
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Priority to CN202210931791.4A priority Critical patent/CN115406142A/en
Publication of CN115406142A publication Critical patent/CN115406142A/en
Pending legal-status Critical Current

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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
    • F25B43/003—Filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • 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
    • F25B43/02—Arrangements 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

The invention discloses a gas-liquid separator for an automobile air conditioner heat management system, which comprises a shell with a cavity inside, and is characterized in that a plurality of partition plates are arranged in the cavity, the cavity is divided into a front gas-liquid separation chamber, a refrigerant drying chamber and a gaseous refrigerant chamber which are mutually independent by the plurality of partition plates, and the front gas-liquid separation chamber is divided into a plurality of separation chambers by the combination of a plurality of partition plates and partition plates. The advantage is simple structure, can effectively improve gas-liquid separation efficiency.

Description

Gas-liquid separator for automobile air conditioner heat management system
Technical Field
The invention relates to the technical field of automobile air conditioners, in particular to a gas-liquid separator for an automobile air conditioner heat management system.
Background
The gas-liquid separator is one of the important components in the automobile air conditioning system, is generally arranged between the outlet of an evaporator and the suction port of a compressor, and has the main functions of: (1) Storing liquid refrigerant in an air conditioning system, and adjusting the circulation amount of the system refrigerant under different working conditions; (2) The gas-liquid separation is carried out on the refrigerant mixed by the gas phase and the liquid phase, so that the liquid refrigerant is prevented from flowing into the compressor to cause liquid impact on the compressor, and the running reliability of the compressor is ensured.
Most of the existing gas-liquid separators are tank structures with baffle plates arranged inside, and the baffle plates are used for separating gas and liquid of refrigerant mixed with gas and liquid phases. The gas-liquid separator with the structure has higher design requirement on the distance between the baffle plates, if the distance between the baffle plates is too large, the flow cross section area in the separator is increased, the change of the airflow direction is very relaxed, and the following performance of the liquid refrigerant to the airflow flowing direction is enhanced, so that the liquid refrigerant is not easy to separate from the airflow, and the separation efficiency is reduced; and if the baffle spacing is too small, the separation pressure drop will increase. The inclination angle of the baffle plate is too large, the change of the channel direction of the baffle plate is more violent, and the airflow can change the flow direction rapidly, so that the gas-liquid separation efficiency can be improved to a certain degree, but the pressure drop can be increased, the energy consumption of a system is increased, the secondary entrainment phenomenon is easy to cause, and finally the separation efficiency is also influenced. The pressure drop of gas-liquid separation is large, so that the non-reversible flow resistance loss of a low-pressure side loop of the automobile air-conditioning heat management system is increased, and the suction pressure relativity of the compressor is reduced; the low gas-liquid separation efficiency can cause the liquid refrigerant to flow into the compressor, resulting in the liquid hammering of the compressor. Based on the above, how to effectively improve the gas-liquid separation efficiency of the gas-liquid separator used for the heat management system of the automobile air conditioner becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problem of providing the gas-liquid separator for the heat management system of the automobile air conditioner, which has simple structure and higher gas-liquid separation efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a gas-liquid separator for an automobile air conditioner heat management system comprises a shell with a cavity inside, wherein a plurality of partition plates are arranged in the cavity, and divide the cavity into a front gas-liquid separation chamber, a refrigerant drying chamber and a gaseous refrigerant chamber which are mutually independent;
the shell is provided with a gas-liquid separator inlet connected with an outlet of the evaporator and a gas-liquid separator outlet connected with a suction end of the compressor, the front gas-liquid separation chamber is communicated with the refrigerant drying chamber through a first air passing port, the refrigerant drying chamber is communicated with the gaseous refrigerant chamber through a second air passing port, and the gas-liquid separator outlet is communicated with the gaseous refrigerant chamber;
the front gas-liquid separation chamber is provided with a vertical first partition plate, and the first partition plate divides the front gas-liquid separation chamber into a first front gas-liquid separation chamber and a second front gas-liquid separation chamber which are independent;
a horizontal first baffle plate is arranged in the first front gas-liquid separation chamber, the first baffle plate divides the first front gas-liquid separation chamber into a first gas passing chamber and a first liquid passing chamber which are independent from top to bottom, and a first through hole which is communicated with the first gas passing chamber and the first liquid passing chamber is formed in the first baffle plate;
a horizontal second baffle plate is arranged in the second front gas-liquid separation chamber, the second baffle plate divides the second front gas-liquid separation chamber into a second gas passing chamber and a second liquid passing chamber which are independent from top to bottom, and a second through hole which is communicated with the second gas passing chamber and the second liquid passing chamber is formed in the second baffle plate in a vertically through mode;
the upper part of the first partition plate is provided with a third air passing port for realizing the communication between the first air passing chamber and the second air passing chamber, the inlet of the gas-liquid separator is communicated with the first air passing chamber and positioned in front of the third air passing port, the first air passing port is arranged at the upper part of the wall surface of the second air passing chamber opposite to the refrigerant drying chamber, and the first air passing port is positioned in front of the third air passing port;
the first partition plate is provided with a plurality of first liquid passing holes for realizing the communication between the first liquid passing chambers and the second liquid passing chambers, the first liquid passing holes are arranged at intervals from top to bottom, the wall surface of the second liquid passing chambers opposite to the refrigerant drying chamber is provided with a plurality of second liquid passing holes for realizing the communication between the second liquid passing chambers and the refrigerant drying chamber, and the second liquid passing holes are arranged at intervals from top to bottom.
The front gas-liquid separation chamber and the gaseous refrigerant chamber are arranged in a front-back adjacent mode, the refrigerant drying chamber is located on the right side of the front gas-liquid separation chamber and the gaseous refrigerant chamber, the gas-liquid separator inlet and the gas-liquid separator outlet are arranged on the upper portion of the left end face of the shell, and the second air passing port is arranged on the upper portion of the wall face, opposite to the gaseous refrigerant chamber, of the refrigerant drying chamber. The front gas-liquid separation chamber, the refrigerant drying chamber and the gaseous refrigerant chamber are compact in structural layout, and the cavity volumes of the three chambers can be adjusted according to the filling amount of the refrigerant of the automobile air conditioning system.
The first baffle plate is provided with third baffle plates at intervals below the first baffle plate, a first baffle block is arranged between the first baffle plate and the third baffle plate, the upper end face of the first baffle block is attached to the lower end face of the first baffle plate, the lower end face of the first baffle block is attached to the upper end face of the third baffle plate, the first baffle block is provided with a first through cavity which is through up and down, a third through hole which is through up and down is arranged at the position, corresponding to the first through cavity, of the third baffle plate, all the first through holes are positioned in the first through cavity, and part of the first through holes are positioned in the third through hole. The structure can effectively improve the gas-liquid separation efficiency of the gas-liquid two-phase refrigerant.
The second baffle is provided with fourth baffle plates at intervals below the second baffle plate, a second baffle block is arranged between the second baffle plate and the fourth baffle plate, the upper end face of the second baffle block is attached to the lower end face of the second baffle plate, the lower end face of the second baffle block is attached to the upper end face of the fourth baffle plate, the second baffle block is provided with a second through cavity which is communicated up and down, a fourth through hole which is communicated up and down is arranged at the position of the fourth baffle plate corresponding to the second through cavity, and all the second through holes are positioned in the second through cavity and part of the second through holes are positioned in the fourth through hole. The structure can effectively improve the gas-liquid separation efficiency of the gas-liquid two-phase refrigerant.
The first baffle plate is provided with a vertical first spoiler which is vertical to the first baffle plate, the first spoiler is positioned in the first air passing chamber and is positioned between the inlet of the gas-liquid separator and the third air passing port, the bottom of the first spoiler is contacted with the upper end surface of the first partition plate, the first through hole is positioned below the first spoiler, the first through hole is divided into two parts by the first spoiler, and the end head of the first spoiler is bent forwards to form a first arc-shaped blade. The structure design can form the functions of diversion and turbulence on the refrigerant airflow, the pressure drop of gas-liquid separation is lower, and the gas-liquid separation efficiency can be obviously improved.
The wall surface of the second air passing chamber opposite to the refrigerant drying chamber is provided with a vertical second spoiler, the second spoiler is positioned in the second air passing chamber and positioned between the third air passing port and the first air passing port, the bottom of the second spoiler is contacted with the upper end surface of the second baffle plate, the second through hole is positioned below the second spoiler, the second through hole is divided into two parts by the second spoiler, and the end of the second spoiler is bent backwards to form a second arc-shaped blade. Through the structural design, the refrigerant airflow can be guided and disturbed, the pressure drop of gas-liquid separation is low, and the gas-liquid separation efficiency can be obviously improved.
The shell is provided with a lubricating oil outlet and a lubricating oil return opening, the lubricating oil outlet is communicated with the first liquid passing chamber and is positioned at the lower part of the first liquid passing chamber, the lubricating oil return opening is communicated with the gaseous refrigerant chamber and is positioned at the lower part of the gaseous refrigerant chamber, and the lubricating oil outlet is connected with the lubricating oil return opening through an external flow channel. The function of the compressor lubricating oil return hole is to ensure that the compressor lubricating oil returns to the compressor from the oil return hole, thereby preventing the compressor from being damaged due to excessive dilution of the compressor lubricating oil by the liquid refrigerant.
And a filter screen is arranged on the lubricating oil outlet. The lubricating oil of the compressor is filtered by the filter screen, and the purpose of the lubricating oil filter is to prevent impurities from entering the compressor through the oil return hole, wherein the impurities comprise metal powder generated by mechanical abrasion of the compressor and particles such as oxide skin or welding slag remaining in a system due to poor welding. The lubricating oil of the compressor is filtered by the filter screen, flows to the U-shaped flow channel of the gaseous refrigerant cavity through the external flow channel and the oil return hole, and flows to the air suction port of the compressor from the outlet of the gas-liquid separator together with the gaseous refrigerant.
Compared with the prior art, the invention has the advantages that: the structure is simple, after the gas-liquid two-phase refrigerant flowing out of the outlet of the automobile air conditioner evaporator flows through the inlet of the gas-liquid separator, the gas-liquid separation of the gas-liquid two-phase refrigerant is carried out through the gas-liquid separation chamber in the front, the refrigerant enters the refrigerant drying chamber to be dried, the moisture in the refrigerant is absorbed, then the gaseous refrigerant enters the gaseous refrigerant chamber, and finally the gaseous refrigerant flows into the air suction port of the compressor through the outlet of the gas-liquid separator; the front gas-liquid separation chamber is divided into a plurality of different cavities by the partition plates and the baffle plates to form a gas-liquid separation flow channel, so that effective gas-liquid separation is realized, the gas-liquid two-phase refrigerant can be effectively subjected to gas-liquid separation, the gas-liquid separation pressure is reduced, and the gas-liquid separation efficiency is improved; in addition, the partition plate and the baffle plate can also enhance the strength of the shell of the gas-liquid separator and improve the pressure resistance of the shell.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic view of a three-dimensional structure of the first baffle, the second baffle, the third baffle, the fourth baffle, the first baffle and the second baffle in the invention;
FIG. 3 is a first cross-sectional view of the present invention with a portion of the housing removed;
FIG. 4 is an exploded view of a first baffle, a second baffle, a third baffle, a fourth baffle, a first baffle and a second baffle of the present invention;
FIG. 5 is a first cross-sectional structural view of the present invention
Fig. 6 is a second cross-sectional structural diagram of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in the figure, the gas-liquid separator for the heat management system of the automobile air conditioner comprises a shell 1 with a cavity inside, wherein a plurality of partition plates G1 are arranged in the cavity, and the cavity is divided into a front gas-liquid separation chamber, a refrigerant drying chamber 2 and a gaseous refrigerant chamber which are mutually independent by the plurality of partition plates G1;
the shell 1 is provided with a gas-liquid separator inlet 101 connected with an outlet of the evaporator and a gas-liquid separator outlet 102 connected with a suction end of the compressor, the front gas-liquid separation chamber is communicated with the refrigerant drying chamber 2 through a first air port K1, the refrigerant drying chamber 2 is communicated with the gaseous refrigerant chamber through a second air port K2, and the gas-liquid separator outlet 102 is communicated with the gaseous refrigerant chamber;
the front gas-liquid separation chamber is provided with a vertical first partition plate G3, and the first partition plate G3 divides the front gas-liquid separation chamber into a first front gas-liquid separation chamber and a second front gas-liquid separation chamber which are independent;
a horizontal first baffle plate G4 is arranged in the first front gas-liquid separation chamber, the first baffle plate G4 divides the first front gas-liquid separation chamber into a first gas passing chamber Q4 and a first liquid passing chamber Q5 which are independent from top to bottom, and a first through hole K3 which is communicated with the first gas passing chamber Q4 and the first liquid passing chamber Q5 from top to bottom is arranged on the first baffle plate G4;
a horizontal second baffle plate G5 is arranged in the second front gas-liquid separation chamber, the second baffle plate G5 divides the second front gas-liquid separation chamber into a second gas passing chamber Q6 and a second liquid passing chamber Q7 which are independent from top to bottom, and a second through hole K4 which is communicated with the second gas passing chamber Q6 and the second liquid passing chamber Q7 is formed in the second baffle plate G5;
a third air passing port K5 used for realizing the communication between the first air passing chamber Q4 and the second air passing chamber Q6 is arranged at the upper part of the first partition plate G3, an inlet 101 of the gas-liquid separator is communicated with the first air passing chamber Q4 and is positioned in front of the third air passing port K5, the first air passing port K1 is arranged at the upper part of the wall surface of the second air passing chamber Q6 opposite to the refrigerant drying chamber 2, and the first air passing port K1 is positioned in front of the third air passing port K5;
the first partition plate G3 is provided with a plurality of first liquid passing holes K6 used for achieving communication between the first liquid passing chambers Q5 and the second liquid passing chambers Q7, the first liquid passing holes K6 are arranged from top to bottom at intervals, the wall face, opposite to the refrigerant drying chamber 2, of the second liquid passing chambers Q7 is provided with a plurality of second liquid passing holes K7 used for achieving communication between the second liquid passing chambers Q7 and the refrigerant drying chamber 2, and the second liquid passing holes K7 are arranged from top to bottom at intervals.
In this embodiment, the front gas-liquid separation chamber and the gaseous refrigerant chamber are arranged adjacent to each other in the front-rear direction, the refrigerant drying chamber 2 is located on the right side of the front gas-liquid separation chamber and the gaseous refrigerant chamber, the gas-liquid separator inlet 101 and the gas-liquid separator outlet 102 are arranged on the upper portion of the left end face of the casing 1, and the second air passing port K2 is arranged on the upper portion of the wall face of the refrigerant drying chamber 2 opposite to the gaseous refrigerant chamber. The front gas-liquid separation chamber, the refrigerant drying chamber 2 and the gaseous refrigerant chamber are compact in structural layout, and the cavity volumes of the three chambers can be adjusted according to the filling amount of the refrigerant of the automobile air conditioning system.
In this embodiment, a third baffle G6 is disposed below the first baffle G4 at an interval, a first baffle G7 is disposed between the first baffle G4 and the third baffle G6, an upper end surface of the first baffle G7 is attached to a lower end surface of the first baffle G4, the lower end surface of the first baffle G7 is attached to an upper end surface of the third baffle G6, the first baffle G7 has a first through cavity K8 penetrating vertically, a third through hole K9 penetrating vertically is disposed at a position of the third baffle G6 corresponding to the first through cavity K8, all of the first through holes K3 are disposed in the first through cavity K8, and a part of the first through holes K3 are disposed in the third through hole K9. The structure can effectively improve the gas-liquid separation efficiency of the gas-liquid two-phase refrigerant.
In this embodiment, a fourth baffle G8 is disposed below the second baffle G5 at an interval, a second baffle G9 is disposed between the second baffle G5 and the fourth baffle G8, an upper end surface of the second baffle G9 is attached to a lower end surface of the second baffle G5, a lower end surface of the second baffle G9 is attached to an upper end surface of the fourth baffle G8, the second baffle G9 has a second through cavity K10 penetrating vertically, and the fourth baffle G8 has a fourth through hole K11 penetrating vertically, which is disposed at a position corresponding to the second through cavity K10, and the second through hole K4 is entirely disposed in the second through cavity K10 and partially disposed in the fourth through hole K11. The structure can effectively improve the gas-liquid separation efficiency of the gas-liquid two-phase refrigerant.
In this embodiment, a vertical first spoiler R1 perpendicular to the first partition plate G3 is disposed on the first partition plate G3, the first spoiler R1 is located in the first air passing chamber Q4, the first spoiler R1 is located between the inlet 101 of the gas-liquid separator and the third air passing port K5, the bottom of the first spoiler R1 contacts with the upper end surface of the first partition plate G4, the first through hole K3 is located below the first spoiler R1, the first spoiler R1 divides the first through hole K3 into two parts, and the end of the first spoiler R1 is bent forward to form a first arc-shaped blade R11. Through the structural design, the flow guide and flow disturbing effects can be formed on the refrigerant airflow, the gas-liquid separation efficiency of the gas-liquid two-phase refrigerant can be effectively improved, and the gas-liquid separation is more sufficient.
In this embodiment, a vertical and perpendicular second spoiler R2 is disposed on a wall surface of the second air passing chamber Q6 opposite to the refrigerant drying chamber 2, the second spoiler R2 is located inside the second air passing chamber Q6, the second spoiler R2 is located between the third air passing port K5 and the first air passing port K1, a bottom of the second spoiler R2 contacts with an upper end surface of the second partition plate G5, the second through port K4 is located below the second spoiler R2, the second spoiler R2 divides the second through port K4 into two parts, and an end of the second spoiler R2 is bent backward to form a second arc-shaped blade R21. Through the structural design, the flow guide and flow disturbing effects can be formed on the refrigerant airflow, the gas-liquid separation efficiency of the gas-liquid two-phase refrigerant can be effectively improved, and the gas-liquid separation is more sufficient.
In this embodiment, the housing 1 is provided with a lubricating oil outlet C1 and a lubricating oil return port C2, the lubricating oil outlet C2 is communicated with the first liquid passing chamber Q5 and is located at the lower portion of the first liquid passing chamber Q5, the lubricating oil return port C2 is communicated with the gaseous refrigerant chamber and is located at the lower portion of the gaseous refrigerant chamber, and the lubricating oil outlet C1 is connected with the lubricating oil return port C2 through an external flow passage (not shown). The lubricating oil return opening C2 has the function of ensuring that the lubricating oil of the compressor returns to the compressor from the lubricating oil return opening C2, so that the damage to the compressor caused by excessive dilution of the lubricating oil of the compressor by the liquid refrigerant is prevented.
In this embodiment, a filter screen W1 is disposed on the lubricating oil outlet C1. The lubricating oil of the compressor is filtered by the filter screen W1, and the purpose of the filtering is to prevent impurities from entering the compressor through the lubricating oil return opening C2, wherein the impurities comprise metal powder generated by mechanical abrasion of the compressor and particles such as oxide skin or welding slag and the like remained in the system due to poor welding. The compressor lubricant is filtered by the filter screen W1, then flows into the gaseous refrigerant chamber through the external flow passage via the lubricant oil return port C2, and flows together with the gaseous refrigerant from the gas-liquid separator outlet 102 to the compressor suction port.
In this embodiment, a vertical second partition plate G2 is disposed in the gaseous refrigerant chamber, the gaseous refrigerant chamber is divided into a first gaseous refrigerant chamber Q1 and a second gaseous refrigerant chamber Q2 by the second partition plate G2, and a communication port Q3 for communicating the first gaseous refrigerant chamber Q1 with the second gaseous refrigerant chamber Q2 is formed in the bottom of the second partition plate G2, so that the gaseous refrigerant chamber forms a U-shaped flow channel structure.
The specific working process is as follows: the gas-liquid two-phase refrigerant gas flow flowing out of the outlet of the evaporator firstly enters the first gas passing chamber Q4 through the inlet 101 of the gas-liquid separator, the flow area of the gas flow is enlarged, the flow rate of the gas flow is reduced, the gas flow is easy to change the flow direction to flow downstream, the refrigerant gas flow touches the second partition plate G3 and the first spoiler R1, the liquid in the refrigerant gas flow is adsorbed on the second partition plate G3 and the first spoiler R1 and is converged into a liquid film, and the liquid film flows downwards under the action of gravity, so that the first gas-liquid separation is realized; most of the refrigerant airflow subjected to the first gas-liquid separation enters the second gas passing chamber Q6 through the third gas passing port K5, the refrigerant airflow entering the second gas passing chamber Q6 touches the wall surface of the second gas passing chamber Q6 opposite to the refrigerant drying chamber 2 and the second spoiler R2, small liquid droplets in the refrigerant airflow are adsorbed on the wall surface and the second spoiler R2 and are converged into a liquid film, and the liquid film flows downwards under the action of gravity, so that the second gas-liquid separation is realized; most of the refrigerant gas flow subjected to the second gas-liquid separation enters the refrigerant drying chamber 2 through the first gas passing hole K1; the liquid and part of the gas which are impacted and adsorbed on the second partition plate G3 and the first spoiler R1 downwards pass through the first through hole K3 and contact with the third baffle plate G6 through the first through cavity K8, at the moment, part of the liquid is impacted and adsorbed on the third baffle plate G6, secondary gas-liquid separation is realized, and the refrigerant gas flow enters the second liquid passing chamber Q7 from the first liquid passing hole K6 positioned at the upper part; liquid and part of gas which are impacted and adsorbed on the wall surface of the second air passing chamber Q6 opposite to the refrigerant drying chamber 2 and on the second spoiler R2 downwards pass through the second through hole K4 and contact with the fourth baffle plate G8 through the second through cavity K10, at the moment, part of liquid refrigerant is impacted and adsorbed on the fourth baffle plate G8, secondary gas-liquid separation is realized, and refrigerant airflow enters the refrigerant drying chamber 2 from the second liquid passing K7 positioned at the upper part; after the refrigerant entering the refrigerant drying chamber 2 is dried in the refrigerant drying chamber 2, the refrigerant enters the first gaseous refrigerant chamber Q1 from the second air passing port K2, and under the suction effect of the suction end of the compressor, the gaseous refrigerant enters the second gaseous refrigerant chamber Q2 through the communication port Q3 and then enters the compressor from the outlet 102 of the gas-liquid separator from the second gaseous refrigerant chamber Q2; in addition, the separated liquid refrigerant and the separated compressor lubricating oil are deposited in the cavities of the first liquid passing chamber Q5 and the second liquid passing chamber Q7, the liquid refrigerant and the compressor lubricating oil are dissolved in a limited way, and the mixture is obviously layered; the compressor lubricant oil is filtered by the filter screen W1, then flows through the external flow passage, flows to the U-shaped flow passage of the gaseous refrigerant chamber through the lubricant oil return port C2, and flows to the compressor suction port from the gas-liquid separator outlet 102 together with the gaseous refrigerant.

Claims (8)

1. A gas-liquid separator for an automobile air conditioner heat management system comprises a shell with a cavity inside, and is characterized in that a plurality of partition plates are arranged in the cavity, and divide the cavity into a front gas-liquid separation chamber, a refrigerant drying chamber and a gaseous refrigerant chamber which are mutually independent;
the shell is provided with a gas-liquid separator inlet connected with an outlet of the evaporator and a gas-liquid separator outlet connected with a suction end of the compressor, the front gas-liquid separation chamber is communicated with the refrigerant drying chamber through a first air passing port, the refrigerant drying chamber is communicated with the gaseous refrigerant chamber through a second air passing port, and the gas-liquid separator outlet is communicated with the gaseous refrigerant chamber;
the front gas-liquid separation chamber is provided with a vertical first partition plate, and the first partition plate divides the front gas-liquid separation chamber into a first front gas-liquid separation chamber and a second front gas-liquid separation chamber which are independent;
a horizontal first baffle plate is arranged in the first front gas-liquid separation chamber, the first baffle plate divides the first front gas-liquid separation chamber into a first gas passing chamber and a first liquid passing chamber which are independent from top to bottom, and a first through hole which is communicated with the first gas passing chamber and the first liquid passing chamber is formed in the first baffle plate;
a horizontal second baffle plate is arranged in the second front gas-liquid separation chamber, the second baffle plate divides the second front gas-liquid separation chamber into a second gas passing chamber and a second liquid passing chamber which are independent from top to bottom, and a second through hole which is communicated with the second gas passing chamber and the second liquid passing chamber is formed in the second baffle plate;
the upper part of the first partition plate is provided with a third air passing port for realizing the communication between the first air passing chamber and the second air passing chamber, the inlet of the gas-liquid separator is communicated with the first air passing chamber and positioned in front of the third air passing port, the first air passing port is arranged at the upper part of the wall surface of the second air passing chamber opposite to the refrigerant drying chamber, and the first air passing port is positioned in front of the third air passing port;
the first partition plate is provided with a plurality of first liquid passing holes for realizing the communication between the first liquid passing chambers and the second liquid passing chambers, the first liquid passing holes are arranged at intervals from top to bottom, the wall surface of the second liquid passing chambers opposite to the refrigerant drying chamber is provided with a plurality of second liquid passing holes for realizing the communication between the second liquid passing chambers and the refrigerant drying chamber, and the second liquid passing holes are arranged at intervals from top to bottom.
2. A gas-liquid separator for a vehicle air conditioner heat management system as set forth in claim 1, wherein said front gas-liquid separation chamber and said gaseous refrigerant chamber are disposed adjacently in the front-rear direction, said refrigerant drying chamber is disposed at the right side of said front gas-liquid separation chamber and said gaseous refrigerant chamber, said gas-liquid separator inlet and said gas-liquid separator outlet are disposed at the upper portion of the left end surface of said case, and said second air passing opening is disposed at the upper portion of the wall surface of said refrigerant drying chamber opposite to said gaseous refrigerant chamber.
3. A gas-liquid separator for a vehicle air conditioner heat management system as claimed in claim 1, wherein a third baffle is disposed below the first baffle at an interval, a first baffle block is disposed between the first baffle and the third baffle, an upper end surface of the first baffle block is attached to a lower end surface of the first baffle block, a lower end surface of the first baffle block is attached to an upper end surface of the third baffle block, the first baffle block has a first through cavity passing through vertically, a third through hole passing through vertically is disposed at a position of the third baffle block corresponding to the first through cavity, and the first through holes are all disposed in the first through cavity and partially disposed in the third through hole.
4. A gas-liquid separator for a vehicle air conditioner heat management system as claimed in claim 3, wherein a fourth baffle is disposed under the second baffle at an interval, a second baffle block is disposed between the second baffle and the fourth baffle, an upper end surface of the second baffle block is attached to a lower end surface of the second baffle block, a lower end surface of the second baffle block is attached to an upper end surface of the fourth baffle block, the second baffle block has a second through cavity passing through from top to bottom, a fourth through hole passing through from top to bottom is disposed at a position of the fourth baffle block corresponding to the second through cavity, and the second through hole is disposed in the second through cavity and partially disposed in the fourth through hole.
5. A gas-liquid separator for a vehicle air conditioner heat management system according to claim 1, wherein a first baffle plate is provided on the first baffle plate in a vertical direction perpendicular to the first baffle plate, the first baffle plate is located in the first air passing chamber, the first baffle plate is located between the inlet of the gas-liquid separator and the third air passing port, the bottom of the first baffle plate contacts the upper end surface of the first baffle plate, the first through-hole is located below the first baffle plate, the first baffle plate divides the first through-hole into two parts, and the tip of the first baffle plate is bent forward to form a first curved blade.
6. A gas-liquid separator for a vehicle air conditioner heat management system as set forth in claim 5, wherein a vertical second spoiler is provided on a wall surface of said second air passing chamber opposite to said refrigerant drying chamber, said second spoiler being positioned in said second air passing chamber, said second spoiler being positioned between said third air passing port and said first air passing port, a bottom of said second spoiler being in contact with an upper end surface of said second barrier, said second opening being positioned under said second through-flow spoiler, said second spoiler dividing said second through-opening in two, an end of said second spoiler being bent backward to form a second arc vane.
7. The gas-liquid separator for a vehicle air conditioner heat management system according to claim 1, wherein said housing is provided with a lubricant oil outlet and a lubricant oil return port, said lubricant oil outlet is communicated with said first liquid passing chamber and located at a lower portion of said first liquid passing chamber, said lubricant oil return port is communicated with said gaseous refrigerant chamber and located at a lower portion of said gaseous refrigerant chamber, and said lubricant oil outlet is connected with said lubricant oil return port through an external flow passage.
8. A gas-liquid separator for a vehicle air conditioner heat management system as set forth in claim 7 wherein said lubricant oil outlet is provided with a filter screen.
CN202210931791.4A 2022-08-04 2022-08-04 Gas-liquid separator for automobile air conditioner heat management system Pending CN115406142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210931791.4A CN115406142A (en) 2022-08-04 2022-08-04 Gas-liquid separator for automobile air conditioner heat management system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210931791.4A CN115406142A (en) 2022-08-04 2022-08-04 Gas-liquid separator for automobile air conditioner heat management system

Publications (1)

Publication Number Publication Date
CN115406142A true CN115406142A (en) 2022-11-29

Family

ID=84159003

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210931791.4A Pending CN115406142A (en) 2022-08-04 2022-08-04 Gas-liquid separator for automobile air conditioner heat management system

Country Status (1)

Country Link
CN (1) CN115406142A (en)

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