CN218672725U - Gas-liquid separator with heat exchange function for carbon dioxide refrigerant - Google Patents
Gas-liquid separator with heat exchange function for carbon dioxide refrigerant Download PDFInfo
- Publication number
- CN218672725U CN218672725U CN202222437987.6U CN202222437987U CN218672725U CN 218672725 U CN218672725 U CN 218672725U CN 202222437987 U CN202222437987 U CN 202222437987U CN 218672725 U CN218672725 U CN 218672725U
- Authority
- CN
- China
- Prior art keywords
- pressure
- low
- heat exchange
- gas
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a gas-liquid separator with heat exchange function for carbon dioxide refrigerant, which comprises a shell, wherein one end of the shell is provided with a high-pressure refrigerant inlet, and the other end of the shell is provided with a high-pressure refrigerant outlet; the high-pressure heat exchange inner pipe is arranged in the shell and is communicated with the high-pressure refrigerant inlet and the high-pressure refrigerant outlet; the low-pressure heat exchange tube is sleeved on the outer side of the high-pressure heat exchange inner tube, a low-pressure flow channel is formed between the low-pressure heat exchange tube and the high-pressure heat exchange inner tube, and a low-pressure inlet and a low-pressure outlet which are communicated are arranged at any end of the shell; the low-pressure outer pipe is sleeved on the outer side of the low-pressure heat exchange pipe, and the gaseous refrigerant flow channel is communicated with the low-pressure flow channel at one end far away from the low-pressure inlet; and the oil return hole is arranged on the side wall of one end of the low-pressure outer pipe, which is far away from the low-pressure inlet. The utility model discloses can realize the high-efficient heat transfer of high pressure high temperature refrigerant and low pressure low temperature refrigerant, solve among the prior art heat transfer resistance too big, the refrigerant circulation in-process pressure loss big problem.
Description
Technical Field
The utility model relates to a vapour and liquid separator field specifically is a vapour and liquid separator who is used for carbon dioxide refrigerant's area heat transfer function.
Background
The gas-liquid separator is a part matched with an automobile compressor and used for separating compressed oil in the compressor from gaseous refrigerant, wherein the refrigerant generally adopts carbon dioxide refrigerant, the existing gas-liquid separator generally has no heat exchange function, even if the gas-liquid separator with the heat exchange function is provided, the gas-liquid separator also adopts a spiral pipe form for heat exchange, in order to ensure that high-pressure high-temperature gas and low-pressure low-temperature gas exchange heat fully, the path of the high-pressure high-temperature gas spiral pipe needs to be as long as possible, and thus the low-pressure low-temperature refrigerant can be ensured to exchange heat fully in the circulation process of the whole container. This results in a very long path of the spiral pipe, which results in a large refrigerant flow resistance, and the system has a clear requirement for the refrigerant flow resistance, and an excessive resistance causes a large pressure loss during the refrigerant flow process, and finally the refrigerant pressure cannot meet the requirement of the system. In addition, the gas-liquid separator has the function of a liquid storage device, and the existing gas-liquid separator with the heat exchange function for the carbon dioxide refrigerant is small in liquid storage volume due to the fact that a cavity formed by the upper inner cylinder and the lower inner cylinder is closed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a take vapour and liquid separator of heat transfer function for carbon dioxide refrigerant can realize the high-efficient heat transfer of high pressure high temperature refrigerant and low pressure low temperature refrigerant, solves among the prior art problem that heat transfer resistance is too big, the refrigerant circulation in-process pressure loss is big.
In order to achieve the above object, the utility model provides a following technical scheme: a gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant comprises a shell, wherein one end of the shell is provided with a high-pressure refrigerant inlet, and the other end of the shell is provided with a high-pressure refrigerant outlet; the high-pressure heat exchange inner pipe is arranged in the shell and is used for communicating the high-pressure refrigerant inlet with the high-pressure refrigerant outlet; the low-pressure heat exchange tube is sleeved outside the high-pressure heat exchange inner tube, a low-pressure flow channel is formed between the low-pressure heat exchange tube and the high-pressure heat exchange inner tube, a low-pressure inlet and a low-pressure outlet are formed at any end of the shell, and the low-pressure flow channel is communicated with the low-pressure outlet; the low-pressure outer pipe is sleeved on the outer side of the low-pressure heat exchange pipe, a gaseous refrigerant flow channel is arranged between the low-pressure outer pipe and the low-pressure heat exchange pipe, and the gaseous refrigerant flow channel is communicated with the low-pressure flow channel at one end far away from a low-pressure inlet; the oil return hole is formed in the side wall of one end, far away from the low-pressure inlet, of the low-pressure outer pipe; the gas-liquid separation part is arranged at the position corresponding to the low-pressure inlet inside the shell, and through the arrangement of the high-pressure heat exchange inner pipe and the low-pressure heat exchange pipe, a low-temperature low-pressure refrigerant can enter a low-pressure flow channel between the high-pressure heat exchange inner pipe and the low-pressure heat exchange pipe and can perform countercurrent heat exchange with high-pressure high-temperature gas inside the high-pressure heat exchange inner pipe, the heat exchange efficiency is high, the whole inner cavity space of the shell is large, and the liquid storage capacity of the gas-liquid separator can be increased.
Preferably, the filter screen is installed in the position that corresponds with the oil gallery in the outside of low pressure outer tube, the filter screen can filter the compressor oil that enters into low pressure outer tube, prevents that debris from plugging up the oil gallery and influencing the recovery of compressor oil.
Preferably, the gas-liquid separation part is in an umbrella cover shape, the gas-liquid separation part is sleeved at one end, close to the low-pressure inlet, of the low-pressure heat exchange tube, a mixture of the low-temperature low-pressure refrigerant and the compressor oil entering the shell from the low-pressure inlet collides with the umbrella cover-shaped gas-liquid separation part, so that the gas-state low-temperature low-pressure refrigerant and the liquid-state compressor oil can be separated, and the gas-liquid separation effect is good.
Preferably, the high-pressure heat exchange inner pipe and the low-pressure outer pipe are both corrugated heat exchange pipes, and the corrugated heat exchange pipes have large contact surface areas, so that the heat exchange area is large, and the heat exchange efficiency can be improved for the flow speed of a gaseous refrigerant and high-temperature high-pressure gas.
Preferably, one of the high-pressure heat exchange inner tube and the low-pressure outer tube is a corrugated heat exchange tube, heat exchange protrusions are uniformly distributed on the inner side wall of the other one, and the heat exchange protrusions can also play a role in increasing the heat exchange contact area and improving the heat exchange efficiency.
Preferably, heat exchange bulges are uniformly distributed on the inner side walls of the high-pressure heat exchange inner pipe and the low-pressure outer pipe.
Preferably, the heat exchange protrusions are elongated ribs, square protrusions or dot protrusions, and the elongated ribs, the square protrusions or the dot protrusions can increase the heat exchange contact area and improve the heat exchange efficiency.
Preferably, the surface of the high-pressure heat exchange inner pipe and/or the surface of the low-pressure outer pipe are/is provided with a micro-channel structure.
Preferably, the shell comprises a first end seat, a second end seat and a cylinder wall connected between the first end seat and the second end seat, the high-pressure refrigerant inlet, the low-pressure inlet and the low-pressure outlet are arranged on the first end seat, the high-pressure refrigerant outlet is arranged on the second end seat, the shell is of an assembled structure, all the interfaces are arranged in a centralized mode, and the gas-liquid separator is convenient to install and connect.
Preferably, the housing is internally provided with a drying agent covering a cross-sectional area between the low-pressure outer pipe and the side wall of the housing, and the drying agent can sufficiently absorb moisture in the compressor oil.
Compared with the prior art, the beneficial effects of the utility model are that:
the structure is simple, the low-temperature and low-pressure refrigerant can enter a low-pressure flow channel between the high-pressure heat exchange inner pipe and the low-pressure heat exchange pipe by arranging the high-pressure heat exchange inner pipe and the low-pressure heat exchange pipe, and performs countercurrent heat exchange with high-pressure and high-temperature gas in the high-pressure heat exchange inner pipe, so that the heat exchange efficiency is high; the heat exchange surface area between the high-pressure heat exchange inner pipe and the low-pressure heat exchange pipe is large, so that the requirement of high-efficiency heat exchange can be met; the space of the whole inner cavity of the shell is large, and the liquid storage capacity of the gas-liquid separator can be improved.
Drawings
FIG. 1 is a front sectional view of a first embodiment of the present invention;
FIG. 2 is a front sectional view of a second embodiment of the present invention;
FIG. 3 isbase:Sub>A sectional view showing the structure of the section A-A of FIG. 2;
FIG. 4 is a partial view of the structure of the present invention;
fig. 5 is a schematic view of the external structure of the present invention.
Reference numerals:
1. the high-pressure heat exchange device comprises a first end seat, 11, a filter screen, 12, a high-pressure refrigerant inlet, 13, a high-pressure refrigerant outlet, 14, a communication channel, 15, an oil return hole, 16, a heat exchange bulge, 17, a low-pressure flow channel, 18, a low-pressure outlet, 19, a gaseous refrigerant flow channel, 2, a second end seat, 3, a cylinder wall, 4, a gas-liquid separation component, 5, an embedded bottom plate, 6, a low-pressure inlet, 7, a high-pressure heat exchange inner pipe, 8, a low-pressure heat exchange pipe, 9, a desiccant support, 10 and a low-pressure outer pipe.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-5, the utility model discloses a solve among the prior art too big, the big problem of refrigerant circulation in-process pressure loss of heat transfer resistance, provide following technical scheme: a gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant comprises a shell, wherein one end of the shell is provided with a high-pressure refrigerant inlet 12, and the other end of the shell is provided with a high-pressure refrigerant outlet 13; the high-pressure heat exchange inner pipe 7 is arranged in the shell and is used for communicating the high-pressure refrigerant inlet 12 with the high-pressure refrigerant outlet 13; the low-pressure heat exchange tube 8 is sleeved on the outer side of the high-pressure heat exchange inner tube 7, a low-pressure flow channel 17 is formed between the low-pressure heat exchange tube 8 and the high-pressure heat exchange inner tube 7, a low-pressure inlet 6 and a low-pressure outlet 18 are arranged at any end of the shell, and the low-pressure flow channel 17 is communicated with the low-pressure outlet 18; the low-pressure outer pipe 10 is sleeved on the outer side of the low-pressure heat exchange pipe 8, a gaseous refrigerant flow channel 19 is arranged between the low-pressure outer pipe 10 and the low-pressure heat exchange pipe 8, and the gaseous refrigerant flow channel 19 is communicated with the low-pressure flow channel 17 at one end far away from the low-pressure inlet 6; the oil return hole 15 is arranged on the side wall of one end of the low-pressure outer pipe 10 far away from the low-pressure inlet 6; the gas-liquid separation part 4 is arranged in the position corresponding to the low-pressure inlet 6 in the shell, and through the arrangement of the high-pressure heat exchange inner tube 7 and the low-pressure heat exchange tube 8, a low-temperature low-pressure refrigerant can enter a low-pressure flow channel 17 between the high-pressure heat exchange inner tube 7 and the low-pressure heat exchange tube 8 and perform countercurrent heat exchange with high-pressure high-temperature gas in the high-pressure heat exchange inner tube 7, so that the heat exchange efficiency is high, the whole inner cavity space of the shell is large, and the liquid storage capacity of the gas-liquid separator can be improved.
Specifically, a mixture of a low-temperature low-pressure refrigerant and compressor oil enters the housing from the low-pressure inlet 6 after coming out of the compressor, and is subjected to gas-liquid separation after passing through the gas-liquid separation part 4, wherein the compressor oil sinks and gathers at the bottom of the housing, the gaseous low-temperature low-pressure refrigerant enters the gaseous refrigerant flow channel 19 from the end of the low-pressure outer tube 10, the compressor oil enters the inside of the low-pressure outer tube 10 through the oil return hole 15 (the oil return hole 15 is a hole through which only oil can pass, and the structure of the hole belongs to the prior art, which is not described herein), the compressor oil entering the inside of the low-pressure outer tube 10 and the gaseous low-pressure low-temperature refrigerant in the gaseous refrigerant flow channel 19 are merged together, the compressor oil enters the low-pressure flow channel 17 through the communication channel 14 on the side wall of the low-pressure heat exchange tube 8 under the drive of the gaseous low-pressure low-temperature refrigerant, and is subjected to countercurrent heat exchange with the high-pressure high-temperature gas in the high-pressure heat exchange tube 7, and then discharged from the low-pressure outlet 18, and continuously flows back into the compressor.
In this embodiment, the outside of low pressure outer tube 10 and the position that oil gallery 15 corresponds install filter screen 11, filter screen 11 can filter the inside compressor oil that enters into low pressure outer tube 10, prevents that debris from plugging up oil gallery 15 and influencing compressor oil and retrieve, filter screen 11 can make things convenient for filter screen 11's installation including filtering the support and setting up the filter layer on filtering the support.
In this embodiment, the gas-liquid separation part 4 is in an umbrella cover shape, the gas-liquid separation part 4 is sleeved at one end of the low-pressure heat exchange tube 8 close to the low-pressure inlet 6, a mixture of the low-temperature low-pressure refrigerant and the compressor oil entering the shell from the low-pressure inlet 6 collides with the umbrella cover-shaped gas-liquid separation part 4 to separate the gaseous low-temperature low-pressure refrigerant from the liquid compressor oil, the gas-liquid separation effect is good, and the umbrella cover-shaped gas-liquid separation part 4 can abut against the end of the low-pressure heat exchange tube 8 to limit the low-pressure heat exchange tube 8.
As a first embodiment of the high-pressure heat exchange inner tube 7 and the low-pressure outer tube 10, the high-pressure heat exchange inner tube 7 and the low-pressure outer tube 10 are both corrugated heat exchange tubes, and the corrugated heat exchange tubes have a relatively large contact surface area, so that not only is the heat exchange area large, but also the heat exchange efficiency can be improved for the flow speed of a gaseous refrigerant and high-temperature and high-pressure gas.
As a second embodiment of the high-pressure heat exchange inner tube 7 and the low-pressure outer tube 10, one of the high-pressure heat exchange inner tube 7 and the low-pressure outer tube 10 is a corrugated heat exchange tube, heat exchange protrusions 16 are uniformly distributed on the inner side wall of the other one, and the heat exchange protrusions 16 can also play a role in increasing the heat exchange contact area and improving the heat exchange efficiency.
As a third embodiment of the high-pressure heat exchange inner tube 7 and the low-pressure outer tube 10, heat exchange protrusions 16 are uniformly distributed on the inner side walls of the high-pressure heat exchange inner tube 7 and the low-pressure outer tube 10. In the second and third embodiments, the heat exchanging protrusions 16 are elongated fins, square protrusions, or dot protrusions, and the elongated fins, the square protrusions, or the dot protrusions can increase the heat exchanging contact area and improve the heat exchanging efficiency. Meanwhile, as a variation, the surface of the high-pressure heat exchange inner pipe 7 and/or the low-pressure outer pipe 10 is provided with a micro-channel structure.
In this embodiment, the housing includes a first end seat 1, a second end seat 2 and a cylinder wall 3 connected between the first end seat 1 and the second end seat 2, the high-pressure refrigerant inlet 12, the low-pressure inlet 6 and the low-pressure outlet 18 are all disposed on the first end seat 1, the high-pressure refrigerant outlet 13 is disposed on the second end seat 2, the housing adopts an assembled structure, and the interfaces are collectively disposed, so that the installation and connection of the gas-liquid separator are facilitated. Specifically, the bottom of the inner side of the first end seat 1 is provided with an embedded bottom plate 5, the embedded bottom plate 5 is provided with a through hole corresponding to the low-pressure inlet 6, the embedded bottom plate 5 also seals an inner cavity communicated with the low-pressure outlet 18 in the first end seat 1, and only the low-pressure flow channel 17 can penetrate through the embedded bottom plate 5 to be communicated with the low-pressure outlet 18.
In this embodiment, a desiccant covering a cross-sectional area between the low-pressure outer pipe 10 and the side wall of the casing is disposed inside the casing, the desiccant can sufficiently absorb moisture in compressor oil, the desiccant can be mounted and fixed in many ways, the desiccant can be fixed in a binding manner, or the desiccant can be fixed by a desiccant support 9, the desiccant support 9 can be in a disc-shaped frame structure, and the desiccant is disposed inside the disc-shaped frame structure.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless expressly specified otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Claims (10)
1. A gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant, comprising:
the refrigerant compressor comprises a shell, wherein one end of the shell is provided with a high-pressure refrigerant inlet (12), and the other end of the shell is provided with a high-pressure refrigerant outlet (13);
the high-pressure heat exchange inner pipe (7) is arranged in the shell and is used for communicating the high-pressure refrigerant inlet (12) with the high-pressure refrigerant outlet (13);
the low-pressure heat exchange tube (8) is sleeved on the outer side of the high-pressure heat exchange inner tube (7), a low-pressure flow channel (17) is formed between the low-pressure heat exchange tube (8) and the high-pressure heat exchange inner tube (7), a low-pressure inlet (6) and a low-pressure outlet (18) are arranged at any one end of the shell, and the low-pressure flow channel (17) is communicated with the low-pressure outlet (18);
the low-pressure heat exchange tube comprises a low-pressure outer tube (10) which is sleeved on the outer side of a low-pressure heat exchange tube (8), a gaseous refrigerant flow channel (19) is arranged between the low-pressure outer tube (10) and the low-pressure heat exchange tube (8), and the gaseous refrigerant flow channel (19) is communicated with a low-pressure flow channel (17) at one end far away from a low-pressure inlet (6);
the oil return hole (15) is formed in the side wall of one end, far away from the low-pressure inlet (6), of the low-pressure outer pipe (10);
and a gas-liquid separation member (4) provided in the casing at a position corresponding to the low-pressure inlet (6).
2. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 1, characterized in that: and a filter screen (11) is arranged at the position, corresponding to the oil return hole (15), of the outer side of the low-pressure outer pipe (10).
3. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 1, characterized in that: the gas-liquid separation component (4) is in an umbrella cover shape, and the gas-liquid separation component (4) is sleeved on one end of the low-pressure heat exchange pipe (8) close to the low-pressure inlet (6).
4. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 1, characterized in that: the high-pressure heat exchange inner tube (7) and the low-pressure outer tube (10) are both corrugated heat exchange tubes.
5. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 1, characterized in that: one of the high-pressure heat exchange inner pipe (7) and the low-pressure outer pipe (10) is a corrugated heat exchange pipe, and heat exchange bulges (16) are uniformly distributed on the inner side wall of the other.
6. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 1, characterized in that: and heat exchange bulges (16) are uniformly distributed on the inner side walls of the high-pressure heat exchange inner pipe (7) and the low-pressure outer pipe (10).
7. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 5 or 6, characterized in that: the heat exchange bulges (16) are elongated ribs, square bulges or round point bulges.
8. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 1, characterized in that: and the surfaces of the high-pressure heat exchange inner pipe (7) and/or the low-pressure outer pipe (10) are/is provided with a micro-channel structure.
9. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 1, characterized in that: the shell comprises a first end seat (1), a second end seat (2) and a cylinder wall (3) connected between the first end seat (1) and the second end seat (2); the high-pressure refrigerant inlet (12), the low-pressure inlet (6) and the low-pressure outlet (18) are arranged on the first end seat (1), and the high-pressure refrigerant outlet (13) is arranged on the second end seat (2).
10. The gas-liquid separator with a heat exchange function for a carbon dioxide refrigerant according to claim 1, characterized in that: the drying agent which covers the section area between the low-pressure outer pipe (10) and the side wall of the shell is arranged in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222437987.6U CN218672725U (en) | 2022-09-15 | 2022-09-15 | Gas-liquid separator with heat exchange function for carbon dioxide refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222437987.6U CN218672725U (en) | 2022-09-15 | 2022-09-15 | Gas-liquid separator with heat exchange function for carbon dioxide refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218672725U true CN218672725U (en) | 2023-03-21 |
Family
ID=85557532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222437987.6U Active CN218672725U (en) | 2022-09-15 | 2022-09-15 | Gas-liquid separator with heat exchange function for carbon dioxide refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218672725U (en) |
-
2022
- 2022-09-15 CN CN202222437987.6U patent/CN218672725U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111442581A (en) | Automobile air conditioner gas-liquid separator with waste heat recovery function | |
| CN201973964U (en) | Vertical evaporator with gas-liquid separation function | |
| CN112432402B (en) | Gas-liquid separator and thermal management system | |
| CN218672725U (en) | Gas-liquid separator with heat exchange function for carbon dioxide refrigerant | |
| CN209155376U (en) | Filter device | |
| CN205227950U (en) | Oil separator and including this oil separator's condenser | |
| CN216953643U (en) | Liquid accumulator and refrigeration air conditioner thereof | |
| CN212029940U (en) | Automobile air conditioner gas-liquid separator with waste heat recovery function | |
| CN217876563U (en) | Refrigerating system and refrigerating equipment | |
| JP3583595B2 (en) | Gas-liquid separator for refrigeration cycle equipment | |
| CN205037631U (en) | Condenser with oil separator internally arranged | |
| CN113739458A (en) | Gas-liquid separator and air conditioning system for vehicle | |
| CN216033608U (en) | Drainage system for parking air conditioner | |
| CN215571407U (en) | Reservoir and car | |
| CN217541157U (en) | High-efficient stable vapour and liquid separator | |
| CN215765891U (en) | Liquid storage drying filter of automobile air conditioner | |
| CN215176190U (en) | Micro-channel heat exchanger | |
| CN214620188U (en) | Condensing device and vehicle | |
| CN216924841U (en) | Liquid storage device and refrigeration air conditioner thereof | |
| CN215962357U (en) | Filter assembly and cold station comprising same | |
| CN217058013U (en) | Oil separator, compressor unit spare and refrigerating system | |
| CN215490459U (en) | Dryer cylinder assembly for refrigeration air-conditioning equipment | |
| CN218722429U (en) | Efficient oil-gas-liquid return separator with inner cavity center heat exchange function | |
| CN211041496U (en) | Carbon dioxide gas-liquid separator and carbon dioxide heat pump air conditioner refrigeration cycle system | |
| CN116379651B (en) | Gas-liquid separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |