CN115479419A - 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
CN115479419A
CN115479419A CN202210931316.7A CN202210931316A CN115479419A CN 115479419 A CN115479419 A CN 115479419A CN 202210931316 A CN202210931316 A CN 202210931316A CN 115479419 A CN115479419 A CN 115479419A
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China
Prior art keywords
gas
chamber
liquid
cavity
passing
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CN202210931316.7A
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Chinese (zh)
Inventor
吴炜
王萌萌
刘乾
潘孝勇
卢轩
贝嘉杰
高文信
余凯华
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Ningbo Tuopu Group Co Ltd
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Ningbo Tuopu Group Co Ltd
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Priority to CN202210931316.7A priority Critical patent/CN115479419A/en
Publication of CN115479419A publication Critical patent/CN115479419A/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)

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, and 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; the refrigerant compressor comprises a gas refrigerant cavity, a vertical first partition plate is arranged in the gas refrigerant cavity, the gas refrigerant cavity is divided into a first gas refrigerant cavity and a second gas refrigerant cavity which are independent by the first partition plate, and a communication opening used for communicating the first gas refrigerant cavity and the second gas refrigerant cavity is formed in the bottom of the first partition plate, so that the gas refrigerant cavity forms a U-shaped flow passage structure. The advantage is simple structure, easily makes, and manufacturing cost is also lower.

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 existing gas-liquid separators are of tank structures with U-shaped gas pipes arranged inside, two ends of each U-shaped gas pipe are fixed on a baffle plate and a top cover respectively, and the top cover and the tank bodies are assembled together through a welding process. The inlet and outlet of the gas-liquid separator are respectively connected with the outlet of the evaporator and the air suction port of the compressor through an air-conditioning connecting pipe. The gas-liquid separator with the structure needs to additionally use the U-shaped gas pipe, and the U-shaped gas pipe is troublesome to install in the tank body, so that the manufacturing cost is high.
Disclosure of Invention
The invention aims to provide a gas-liquid separator which is simple in structure and low in manufacturing cost.
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; a vertical first partition plate is arranged in the gaseous refrigerant cavity, the gaseous refrigerant cavity is divided into a first gaseous refrigerant cavity and a second gaseous refrigerant cavity which are independent by the first partition plate, and a communication port for communicating the first gaseous refrigerant cavity with the second gaseous refrigerant cavity is formed in the bottom of the first partition plate, so that the gaseous refrigerant cavity forms a U-shaped flow channel structure;
the shell is provided with a gas-liquid separator inlet and a gas-liquid separator outlet, the gas-liquid separator inlet is used for being connected with an outlet of the evaporator, the gas-liquid separator outlet is used for being connected with a gas suction end of the compressor, the gas-liquid separator inlet is communicated with the front gas-liquid separation chamber, the front gas-liquid separation chamber is communicated with the refrigerant drying chamber through a first gas port, the refrigerant drying chamber is communicated with the first gaseous refrigerant chamber through a second gas port, and the gas-liquid separator outlet is communicated with the second gaseous refrigerant chamber.
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 inlet of the gas-liquid separator and the outlet of the gas-liquid separator 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 first 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 front gas-liquid separation chamber is provided with a vertical second partition plate, and the second 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 each other up and down, 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 in a penetrating manner up and down;
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 second 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 second partition plate is provided with a plurality of first liquid passing holes used 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 used 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 cavity is separated into a plurality of different cavities through the partition plate and the partition plate, a gas-liquid separation flow channel is formed, effective gas-liquid separation is achieved, gas-liquid separation of a gas-liquid two-phase refrigerant can be effectively achieved, meanwhile, the strength of the shell of the gas-liquid separator can be enhanced through the partition plate and the partition plate, and the compression strength of the shell of the gas-liquid separator is improved.
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 second baffle plate is provided with a vertical first spoiler which is vertical to the second baffle plate, the first spoiler is positioned in the first air passing chamber and 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. 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.
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 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.
The first partition plate is provided with a balance hole which is communicated from left to right and used for balancing the pressure of the gaseous refrigerant. The balancing hole is arranged near the outlet of the gas-liquid separator, which can prevent the liquid refrigerant from being sucked into the suction port of the compressor.
The shell is provided with a lubricating oil outlet and a lubricating oil return port, the lubricating oil outlet is communicated with the front gas-liquid separation chamber and is located at the lower part of the front gas-liquid separation chamber, the lubricating oil return port is communicated with the second gaseous refrigerant chamber and is located at the lower part of the second gaseous refrigerant chamber, and the lubricating oil outlet is connected with the lubricating oil return port through an external flow channel. The compressor lubricating oil return hole has the function of ensuring that the compressor lubricating oil returns to the compressor from the oil return hole, so that the damage to the compressor caused by excessive dilution of the compressor lubricating oil by the liquid refrigerant is prevented.
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 path, 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 with the U-shaped flow channel structure, and finally the gaseous refrigerant flows into the air suction port of the compressor through the outlet of the gas-liquid separator; the three cavities are formed by only separating plates arranged in the cavities, and the U-shaped flow passage structure in the gaseous refrigerant is obtained by only separating one first separating plate, so that the gas-liquid separator for the automobile air conditioner heat management system with the structure is easy to manufacture, and the manufacturing cost is low.
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 schematic 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 schematic cross-sectional structure 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 vehicle air conditioner heat management system 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; a vertical first partition plate G2 is arranged in the gaseous refrigerant cavity, the gaseous refrigerant cavity is divided into a first gaseous refrigerant cavity Q1 and a second gaseous refrigerant cavity Q2 by the first partition plate G2, and a communication port Q3 for communicating the first gaseous refrigerant cavity Q1 with the second gaseous refrigerant cavity Q2 is formed in the bottom of the first partition plate G2, so that the gaseous refrigerant cavity forms a U-shaped flow passage structure;
the shell 1 is provided with a gas-liquid separator inlet 101 used for being connected with an outlet of the evaporator and a gas-liquid separator outlet 102 used for being connected with a suction end of the compressor, the gas-liquid separator inlet 101 is communicated with a front gas-liquid separation chamber, the front gas-liquid separation chamber is communicated with a refrigerant drying chamber 2 through a first air port K1, the refrigerant drying chamber 2 is communicated with a first gaseous refrigerant chamber Q1 through a second air port K2, and the gas-liquid separator outlet 102 is communicated with a second gaseous refrigerant chamber Q2.
In this embodiment, the front gas-liquid separation chamber and the gaseous refrigerant chamber are arranged adjacently in front and back, 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 housing 1, and the second air passing opening K2 is arranged on the upper portion of the wall face of the refrigerant drying chamber 2 opposite to the first gaseous refrigerant chamber Q1. 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, the front gas-liquid separation chamber is provided with a vertical second partition plate G3, and the second 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 partition plate G5 is arranged in the second front gas-liquid separation chamber, the second partition 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 partition plate G5 in a vertically through mode;
a third air passing port K5 for realizing communication between the first air passing chamber Q4 and the second air passing chamber Q6 is arranged at the upper part of the second 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 second 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. The front gas-liquid separation chamber is divided into a plurality of different cavities through the partition plate and the partition plate to form a gas-liquid separation flow channel, effective gas-liquid separation is achieved, gas-liquid separation of a gas-liquid two-phase refrigerant can be effectively achieved, meanwhile, the strength of the gas-liquid separator shell 1 can be enhanced through the partition plate and the partition plate, and the compression strength of the gas-liquid separator shell is improved.
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 second partition plate G3 is disposed on the second 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 the first cambered 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 guiding and 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 first separator G2 is provided with a balance hole P1 penetrating in the left and right direction to balance the pressure of the gaseous refrigerant. The balance hole P1 is provided near the gas-liquid separator outlet 102, which prevents liquid refrigerant from being drawn into the compressor suction port.
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 C1 is communicated with the front gas-liquid separation chamber and is located at the lower portion of the front gas-liquid separation chamber, the lubricating oil return port C2 is communicated with the second gaseous refrigerant chamber Q2 and is located at the lower portion of the second gaseous refrigerant chamber Q2, and the lubricating oil outlet C1 is connected with the lubricating oil return port C2 through an external flow passage (not shown in the figure). The function of the lubricating oil return port C2 is to ensure that the compressor lubricating oil returns to the compressor from the lubricating oil return port C2, thereby preventing the compressor from being damaged due to excessive dilution of the compressor lubricating oil by the liquid refrigerant.
In this embodiment, the lubricating oil outlet C1 communicates with the first passing liquid chamber Q5 and is located at a lower portion of the first passing liquid chamber Q5.
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 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.
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 speed of the gas flow is reduced, the gas can easily change the flow direction to flow continuously downstream due to different gas-liquid inertia, 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; the 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 G8 through the second through cavity K10, at the moment, part of liquid refrigerant is impacted and adsorbed on the fourth baffle 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 manner, 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 (10)

1. A vapour-liquid separator for the heat management system of air conditioner of car is composed of a casing with a cavity in it, and multiple partitions in said cavity for dividing said cavity into a front vapour-liquid separating cavity, a drying cavity for refrigerant and a gas-state refrigerant cavity; a vertical first partition plate is arranged in the gaseous refrigerant cavity, the gaseous refrigerant cavity is divided into a first gaseous refrigerant cavity and a second gaseous refrigerant cavity which are independent by the first partition plate, and a communication port for communicating the first gaseous refrigerant cavity with the second gaseous refrigerant cavity is formed in the bottom of the first partition plate, so that the gaseous refrigerant cavity forms a U-shaped flow channel structure;
the shell is provided with a gas-liquid separator inlet and a gas-liquid separator outlet, the gas-liquid separator inlet is used for being connected with an outlet of the evaporator, the gas-liquid separator outlet is used for being connected with a gas suction end of the compressor, the gas-liquid separator inlet is communicated with the front gas-liquid separation chamber, the front gas-liquid separation chamber is communicated with the refrigerant drying chamber through a first gas port, the refrigerant drying chamber is communicated with the first gaseous refrigerant chamber through a second gas port, and the gas-liquid separator outlet is communicated with the second gaseous refrigerant chamber.
2. A gas-liquid separator for a vehicle air conditioner heat management system as claimed in claim 1, wherein said front gas-liquid separation chamber and said gaseous refrigerant chamber are disposed adjacent to each other 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 first gaseous refrigerant chamber.
3. The gas-liquid separator for the heat management system of the automotive air conditioner according to claim 2, wherein the front gas-liquid separation chamber is provided with a vertical second partition plate, and the second 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 each other up and down, 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 in a penetrating manner up and down;
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 second 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 second partition plate is provided with a plurality of first liquid passing holes used 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 used 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.
4. The air-liquid separator for an automotive air conditioning heat management system according to claim 3, characterized in that a third baffle is arranged at an interval below the first baffle, a first baffle block is arranged between the first baffle and the third baffle, the upper end surface of the first baffle block is attached to the lower end surface of the first baffle block, the lower end surface of the first baffle block is attached to the upper end surface of the third baffle block, the first baffle block is provided with a first through cavity which penetrates up and down, a third through hole which penetrates up and down is arranged at a position of the third baffle block corresponding to the first through cavity, and the first through holes are all positioned in the first through cavity and are partially positioned in the third through hole.
5. The air-liquid separator for an automotive air conditioning heat management system as defined in claim 4, wherein a fourth baffle is disposed at an interval below said second baffle, a second baffle block is disposed between said second baffle block and said fourth baffle block, the upper end surface of said second baffle block is in contact with the lower end surface of said second baffle block, the lower end surface of said second baffle block is in contact with the upper end surface of said fourth baffle block, said second baffle block has a second through cavity passing vertically therethrough, said fourth baffle block has a fourth through hole passing vertically therethrough at a position corresponding to said second through cavity, said second through holes are all disposed in said second through cavity and a portion thereof is disposed in said fourth through hole.
6. A gas-liquid separator for a vehicle air conditioner heat management system as claimed in claim 3, wherein a first spoiler is provided vertically to the second partition plate on the second partition plate, the first spoiler is located in the first air passing chamber, the first spoiler is located between the inlet of the gas-liquid separator and the third air passing port, the bottom of the first spoiler contacts the upper end surface of the first partition plate, the first through-hole is located below the first spoiler, the first spoiler divides the first through-hole into two parts, and the tip of the first spoiler is bent forward to form a first curved blade.
7. A gas-liquid separator for a vehicle air conditioner heat management system as claimed in claim 6, wherein a vertical second spoiler is provided on a wall surface of the second air passing chamber opposite to the refrigerant drying chamber, the second spoiler is positioned in the second air passing chamber, the second spoiler is positioned between the third air passing port and the first air passing port, a bottom of the second spoiler contacts with an upper end surface of the second barrier, the second through hole is positioned below the second spoiler, the second spoiler divides the second through hole into two, and an end of the second spoiler is bent backward to form a second arc vane.
8. The air-liquid separator for an air-conditioning heat management system of an automobile according to claim 1, wherein the first partition plate is provided with a balance hole for balancing the pressure of the gaseous refrigerant, which penetrates from left to right.
9. The gas-liquid separator for the vehicle air conditioner heat management system according to claim 1, wherein said housing is provided with a lubricant outlet and a lubricant return, said lubricant outlet is in communication with said front gas-liquid separation chamber and located at a lower portion of said front gas-liquid separation chamber, said lubricant return is in communication with said second gaseous refrigerant chamber and located at a lower portion of said second gaseous refrigerant chamber, and said lubricant outlet is connected to said lubricant return through an external flow passage.
10. The air-liquid separator for an automotive air-conditioning heat management system as defined in claim 9, wherein said lubricating oil outlet is provided with a filter screen.
CN202210931316.7A 2022-08-04 2022-08-04 Gas-liquid separator for automobile air conditioner heat management system Pending CN115479419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210931316.7A CN115479419A (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
CN202210931316.7A CN115479419A (en) 2022-08-04 2022-08-04 Gas-liquid separator for automobile air conditioner heat management system

Publications (1)

Publication Number Publication Date
CN115479419A true CN115479419A (en) 2022-12-16

Family

ID=84421348

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210931316.7A Pending CN115479419A (en) 2022-08-04 2022-08-04 Gas-liquid separator for automobile air conditioner heat management system

Country Status (1)

Country Link
CN (1) CN115479419A (en)

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