CN110887281A - Gas-liquid separator and air conditioning system adopting same - Google Patents
Gas-liquid separator and air conditioning system adopting same Download PDFInfo
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- CN110887281A CN110887281A CN201911081776.XA CN201911081776A CN110887281A CN 110887281 A CN110887281 A CN 110887281A CN 201911081776 A CN201911081776 A CN 201911081776A CN 110887281 A CN110887281 A CN 110887281A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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Abstract
The invention discloses a gas-liquid separator, wherein a gas-liquid separation pipe is positioned in an outer barrel, the gas-liquid separation pipe comprises an inner pipe body and an outer pipe body sleeved outside the inner pipe body, a low-pressure channel is formed in the inner pipe body, a liquid discharge hole is formed in the side wall of the low-pressure channel, two ends of the low-pressure channel are respectively communicated with a low-pressure inlet and a low-pressure outlet, a high-pressure channel is formed between the outer pipe body and the inner pipe body, and two ends of the high-pressure channel are respectively communicated with a high-pressure. Through above-mentioned optimal design's vapour and liquid separator, compact structure, the gas-liquid separation pipe is formed by interior body and outer body jointly, and low-pressure gas passes through the low pressure passageway in the inner tube body and passes through the in-process of outage discharge liquid, carries out the heat exchange through interior body side wall and the interior high-pressure gas of high pressure channel, reduces the gas temperature difference. The invention also discloses an air conditioning system.
Description
Technical Field
The invention relates to the technical field of heat exchange, in particular to a gas-liquid separator and an air conditioning system adopting the same.
Background
As the air conditioner is used more and more widely, the outdoor environment temperature is varied, and the environment temperature exceeds the operation range of the common air conditioner, for example, the air conditioner needs to refrigerate (low temperature refrigeration) when the outdoor temperature is very low, or the outdoor ultra-low temperature needs to heat (low temperature heating), etc. When the air conditioner operates under the conditions, the refrigerant exchanges heat in the outdoor unit, a large amount of refrigerant needs to be stored in the gas-liquid separator and does not participate in the heat exchange, and when the amount of the refrigerant in the gas-liquid separator is excessive, liquid refrigerant can be generated in a gas return pipe of the compressor, so that liquid impact is caused, and the compressor is damaged.
Therefore, the gas-liquid separator is an important part in the air conditioner, and prevents damage to the compressor by removing the liquid refrigerant. However, the refrigerant temperature at each part inside the air conditioner is not uniform, which affects the working effect of the air conditioner.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a gas-liquid separator and an air conditioning system adopting the gas-liquid separator.
The invention provides a gas-liquid separator, comprising: an outer cylinder and a gas-liquid separation pipe;
the outer cylinder comprises a cylinder body and a cylinder cover, and the cylinder cover is provided with a high-pressure inlet, a high-pressure outlet, a low-pressure inlet and a low-pressure outlet;
the gas-liquid separation pipe is positioned in the outer barrel and comprises an inner pipe body and an outer pipe body sleeved outside the inner pipe body, a low-pressure channel is formed in the inner pipe body, a liquid discharge hole is formed in the side wall of the low-pressure channel, two ends of the low-pressure channel are respectively communicated with a low-pressure inlet and a low-pressure outlet, a high-pressure channel is formed between the outer pipe body and the inner pipe body, and two ends of the high-pressure channel are respectively communicated with the high-pressure inlet and the high-pressure outlet.
Preferably, a preheating chamber is formed between the inner wall of the outer barrel and the outer pipe body, and the low-pressure passage is communicated with the low-pressure inlet through the preheating chamber.
Preferably, the preheating chamber further comprises a gas distribution member, wherein the gas distribution member is positioned in the preheating chamber and is positioned between the low-pressure channel and the low-pressure inlet;
preferably, one end of the low-pressure channel, which is far away from the low-pressure outlet, is positioned on one side of the gas distribution piece, which is far away from the low-pressure inlet.
Preferably, the air distributing member has a cup-shaped structure with a middle part protruding towards the cylinder cover.
Preferably, the end of the low pressure passage remote from the low pressure outlet projects into the cup-shaped structure.
Preferably, the inner pipe body comprises a heat exchange section and a preheating section which are sequentially communicated, the preheating section is located at one end, far away from the low-pressure outlet, of the heat exchange section, the liquid discharge hole is located in the side wall of the heat exchange section, and the outer pipe body is sleeved outside the heat exchange section.
Preferably, the liquid discharge hole is provided with an oil filter nozzle;
preferably, the inner pipe body is fixedly connected with the inner wall of the outer barrel through a filtering oil nozzle.
Preferably, the high pressure passage comprises a plurality of high pressure flow paths extending from the high pressure inlet to the high pressure outlet, the plurality of high pressure flow paths being distributed around the inner body.
Preferably, the inner wall of the outer pipe body is provided with a plurality of ribs extending from the high-pressure inlet to the high-pressure outlet, the plurality of ribs are distributed around the inner pipe body, and one high-pressure circulation path is formed between two adjacent ribs.
Preferably, the high pressure passage extends helically around the low pressure passage;
preferably, the outer portion of the inner tube body is provided with an outer spiral groove extending around the outer wall thereof, the outer spiral groove forming the high pressure channel between the inner tube body and the outer tube body.
Preferably, the inner wall of the inner pipe body is provided with an inner spiral groove which is arranged corresponding to the outer spiral groove.
Preferably, the flow direction in the high pressure passage and the low pressure passage is opposite.
According to the gas-liquid separator, the gas-liquid separation pipe is located inside the outer barrel, the gas-liquid separation pipe comprises an inner pipe body and an outer pipe body sleeved outside the inner pipe body, a low-pressure channel is formed inside the inner pipe body, the side wall of the low-pressure channel is provided with a liquid discharge hole, two ends of the low-pressure channel are respectively communicated with the low-pressure inlet and the low-pressure outlet, a high-pressure channel is formed between the outer pipe body and the inner pipe body, and two ends of the high-pressure channel are respectively communicated with the. Through above-mentioned optimal design's vapour and liquid separator, compact structure, the gas-liquid separation pipe is formed by interior body and outer body jointly, and low-pressure gas passes through the low pressure passageway in the inner tube body and passes through the in-process of outage discharge liquid, carries out the heat exchange through interior body side wall and the interior high-pressure gas of high pressure channel, reduces the gas temperature difference.
The invention also provides an air conditioning system, which comprises the gas-liquid separator;
preferably, the system also comprises an evaporator, a compressor and a condenser;
the evaporator is provided with a first outer high-pressure inlet and an outer low-pressure outlet, the compressor is provided with an outer low-pressure inlet and a first outer high-pressure outlet, and the condenser is provided with a second outer high-pressure inlet and a second outer high-pressure outlet;
the outer low pressure outlet is communicated with the low pressure inlet, the low pressure outlet is communicated with the outer low pressure inlet, the first outer high pressure outlet is communicated with the second outer high pressure inlet, the second outer high pressure outlet is communicated with the high pressure inlet, and the high pressure outlet is communicated with the first outer high pressure inlet.
According to the air conditioning system, the gas-liquid separator of the low-pressure channel is of the double-layer sleeve structure, so that gas and liquid of low-pressure gas are separated before entering the compressor, liquid impact of the compressor is effectively prevented, and meanwhile heat exchange is carried out between the low-pressure gas and high-pressure gas, so that heat regeneration and heat exchange are realized, and the refrigerating capacity and the refrigerating efficiency of the system are improved.
Drawings
Fig. 1 is a schematic structural diagram of a gas-liquid separator according to the present invention.
Fig. 2 is a schematic structural diagram of a cylinder cover of a gas-liquid separator according to the present invention.
Fig. 3 is a schematic structural diagram of a gas-liquid separation pipe and a gas distribution member of a gas-liquid separator according to the present invention.
Fig. 4 is a partial structural schematic diagram of the gas-liquid separation pipe, the gas distribution member and the cylinder cover of the gas-liquid separator according to the present invention.
Fig. 5 is a schematic structural diagram of a gas-liquid separator according to the present invention, in which an inner tube and an outer tube are engaged with each other.
Fig. 6 is another schematic structural diagram of the gas-liquid separator according to the present invention, in which the inner tube and the outer tube are engaged with each other.
Fig. 7 is a schematic structural diagram of an inner tube of a gas-liquid separator according to the present invention.
Fig. 8 is a schematic structural diagram of a flow path of an air conditioning system according to the present invention.
Detailed Description
As shown in fig. 1 to 8, fig. 1 is a schematic structural diagram of a gas-liquid separator according to the present invention, FIG. 2 is a schematic structural diagram of a cover of a gas-liquid separator according to the present invention, FIG. 3 is a schematic structural diagram of a gas-liquid separation tube of a gas-liquid separator according to the present invention in cooperation with a gas distribution member, FIG. 4 is a schematic view of a partial structure of a gas-liquid separator according to the present invention in which a gas-liquid separation tube, a gas distribution member and a cover are engaged, FIG. 5 is a schematic view of a structure of a gas-liquid separator according to the present invention in which an inner tube and an outer tube are engaged, FIG. 6 is a schematic view of another structure of a gas-liquid separator according to the present invention in which an inner tube and an outer tube are engaged, fig. 7 is a schematic structural diagram of an inner tube of a gas-liquid separator according to the present invention, and fig. 8 is a schematic structural diagram of a flow path of an air conditioning system according to the present invention.
Referring to fig. 1 and 2, the present invention provides a gas-liquid separator including: an outer cylinder 1 and a gas-liquid separation pipe;
the outer cylinder 1 comprises a cylinder body and a cylinder cover 10, wherein the cylinder cover 10 is provided with a high-pressure inlet 11, a high-pressure outlet 12, a low-pressure inlet 13 and a low-pressure outlet 14;
the gas-liquid separation pipe is positioned inside the outer barrel 1 and comprises an inner pipe body 2 and an outer pipe body 3 sleeved outside the inner pipe body 2, a low-pressure channel is formed inside the inner pipe body 2, a liquid discharge hole is formed in the side wall of the low-pressure channel, two ends of the low-pressure channel are respectively communicated with a low-pressure inlet 13 and a low-pressure outlet 14, a high-pressure channel is formed between the outer pipe body 3 and the inner pipe body 2, and two ends of the high-pressure channel are respectively communicated with a high-pressure inlet 11 and a high-pressure.
In the gas-liquid separator's of this embodiment specific working process, low-pressure gas gets into in the inside low pressure passageway of interior body through the low pressure import in, liquid discharge that has through the outage with low-pressure gas, high-pressure liquid gets into the high pressure passageway between interior body and the outer body through the high pressure import simultaneously, the two carries out the heat exchange through the pipe wall, after the heat exchange, low-pressure gas flows through the low pressure export, high-pressure liquid flows through the high pressure export simultaneously, carry out the heat exchange through high-pressure gas and low-pressure gas in this in-process, reduce the refrigerant difference in temperature of different positions.
In this embodiment, in the proposed gas-liquid separator, the gas-liquid separation tube is located inside the outer tube, the gas-liquid separation tube includes an inner tube and an outer tube sleeved outside the inner tube, a low-pressure channel is formed inside the inner tube, a liquid discharge hole is formed in a side wall of the low-pressure channel, two ends of the low-pressure channel are respectively communicated with the low-pressure inlet and the low-pressure outlet, a high-pressure channel is formed between the outer tube and the inner tube, and two ends of the high-pressure channel are respectively communicated with the high-pressure inlet and the high-pressure. Through the gas-liquid separator of above-mentioned optimal design, the gas-liquid separation pipe is formed by interior body and outer body jointly, and low-pressure gas passes through the low pressure passageway in the inner tube body and passes through the in-process of outage discharge liquid, carries out the heat exchange through interior body lateral wall and the interior high-pressure gas of high pressure channel, reduces the gaseous difference in temperature.
In order to describe the working environment of the gas-liquid separator in the embodiment in detail, the embodiment also provides an air conditioning system, which comprises the gas-liquid separator.
In the specific design of the air conditioning system, the air conditioning system further comprises an evaporator 200, a compressor 300 and a condenser 400.
In a specific pipeline connection manner, the evaporator 200 is provided with a first outer high-pressure inlet and an outer low-pressure outlet, the compressor 300 is provided with an outer low-pressure inlet and a first outer high-pressure outlet, and the condenser 400 is provided with a second outer high-pressure inlet and a second outer high-pressure outlet;
the outer low pressure outlet is communicated with the low pressure inlet, the low pressure outlet is communicated with the outer low pressure inlet, the first outer high pressure outlet is communicated with the second outer high pressure inlet, the second outer high pressure outlet is communicated with the high pressure inlet, and the high pressure outlet is communicated with the first outer high pressure inlet.
Referring to fig. 8, in the coolant flow path, the coolant flows out of the outer low pressure outlet of the evaporator into the low pressure passage of the gas-liquid separator to remove liquid, then flows into the compressor through the outer low pressure inlet, forms a high pressure fluid in the compressor, flows out of the first outer high pressure outlet, enters the second outer high pressure inlet of the condenser, flows out of the second outer high pressure outlet after being condensed in the condenser, enters the high pressure passage of the gas-liquid separator, exchanges heat with the coolant in the low pressure passage, then flows out of the high pressure outlet, and finally returns to the evaporator through the first outer high pressure inlet; the high pressure fluid and the low pressure fluid exchange heat in the gas-liquid separator throughout the flow path.
In this embodiment, the air conditioning system that provides sets up the vapour and liquid separator of low pressure passageway into double-deck sleeve structure for low-pressure gas-liquid separation before getting into the compressor, thereby effectively prevent that the compressor from taking place the liquid and hit, low-pressure gas carries out the heat exchange with high-pressure gas simultaneously, thereby realizes backheating heat transfer, improves system refrigerating output and refrigeration efficiency.
In the specific embodiment of the gas-liquid separator, a preheating chamber is formed between the inner wall of the outer barrel 1 and the outer pipe body 3, and the low-pressure channel is communicated with the low-pressure inlet 13 through the preheating chamber; after low-pressure gas enters the outer barrel through the low-pressure inlet, the low-pressure gas is preheated through the outer wall of the outer barrel in the preheating cavity between the outer barrel and then enters the low-pressure channel from one end of the low-pressure channel, so that the heat exchange efficiency and the heat utilization rate are improved.
Referring to fig. 3 and 4, in order to sufficiently preheat the low-pressure gas before entering the low-pressure passage, the embodiment further includes a gas distribution member 4, the gas distribution member 4 is located in the preheating chamber and between the low-pressure passage and the low-pressure inlet 13, and after the low-pressure gas enters the low-pressure inlet, the low-pressure gas is distributed in the preheating chamber under the action of the gas distribution member, so that the low-pressure gas which is not preheated is prevented from directly entering the low-pressure passage.
In the specific design mode of the gas distribution piece, the gas distribution piece 4 is provided with a cup-shaped structure with the middle part protruding towards the cylinder cover, so that the low-pressure gas entering the preheating chamber can be distributed conveniently.
In a further specific design mode, one end of the low-pressure channel, which is far away from the low-pressure outlet 14, extends into the cup-shaped structure, so that low-pressure gas entering the preheating chamber is further prevented from directly entering the low-pressure channel, and the gas distribution piece covers the outside of the gas inlet end of the low-pressure channel, so that the entering low-pressure gas enters the preheating channel after filling the preheating chamber.
In certain other specific embodiments of the gas separation tube, the high pressure channel comprises a plurality of high pressure flow paths extending from the high pressure inlet to the high pressure outlet, the plurality of high pressure flow paths being distributed around the inner body; the high-pressure circulation paths are distributed in the circumferential direction of the low-pressure channel, and the circumferential heat exchange effect is guaranteed.
Referring to fig. 5, in order to prevent the high pressure channel from deforming to cause a position deviation around the low pressure channel when the inner pipe and the outer pipe are bent together, in a specific arrangement mode, the inner wall of the outer pipe 3 is provided with a plurality of convex ribs 31 extending from the high pressure inlet to the high pressure outlet, the plurality of convex ribs 31 are distributed around the inner pipe 2, and a high pressure circulation path is formed between two adjacent convex ribs 31, and when the inner pipe and the outer pipe are bent, the convex ribs play a supporting role to ensure a circumferential gap between the inner pipe and the outer pipe.
Referring to fig. 6 and 7, in another specific design mode, the high-pressure channel extends spirally around the low-pressure channel, and the arrangement mode can also increase the heat exchange area and the heat exchange time of the low-pressure gas and the high-pressure gas; preferably, the outer portion of the inner tube 2 is provided with outer spiral grooves extending around the outer wall thereof, the outer spiral grooves forming the high pressure channel between the inner tube 2 and the outer tube 3, increasing the heat exchange area between the low pressure channel and the high pressure channel, thereby increasing the heat exchange efficiency.
In order to further improve the heat exchange efficiency between the low pressure channel and the high pressure channel, the inner wall of the inner tube body 2 is provided with inner spiral grooves corresponding to the outer spiral grooves, and the low pressure gas forms a flow path flowing along the inner spiral on the inner wall of the inner tube body.
In other specific design modes of the inner pipe body, the inner pipe body 2 comprises a heat exchange section and a preheating section which are sequentially communicated, the preheating section is positioned at one end, far away from the low-pressure outlet 14, of the heat exchange section, and the outer pipe body 3 is sleeved outside the heat exchange section; the outer pipe body and the inner pipe body are conveniently matched and sleeved, and meanwhile, the inner pipe body is further preheated before low-pressure gas and high-pressure gas exchange heat.
In other specific embodiments, the liquid discharge hole is provided with an oil filter nozzle 5, and liquid in the low-pressure channel is sucked out through the oil filter nozzle, so that the gas-liquid separation efficiency is improved; furthermore, the oil filter nozzle is fixed on the inner wall of the outer barrel, and the gas-liquid separation pipe is fixed on the outer barrel, so that the gas-liquid separation pipe is prevented from shaking along with the gas flow
In the heat exchange process, the flow directions in the high-pressure channel and the low-pressure channel are opposite, so that the temperature gradient of the high-pressure flow path and the temperature gradient of the low-pressure flow path are distributed correspondingly, and the heat exchange efficiency of the high-pressure flow path and the low-pressure flow path is improved.
In addition, in the concrete design of cover, can be as an organic whole structure with the cover design according to the use needs, four exit all set up on same lid, also can be with the cover design for two lid structures, and the overall arrangement high pressure import and the low pressure export are covered to A, and overall arrangement high pressure export and low pressure import are covered to B.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A gas-liquid separator, comprising: an outer cylinder (1), a gas-liquid separation pipe;
the outer cylinder (1) comprises a cylinder body and a cylinder cover (10), wherein the cylinder cover (10) is provided with a high-pressure inlet (11), a high-pressure outlet (12), a low-pressure inlet (13) and a low-pressure outlet (14);
the gas-liquid separation pipe is positioned inside the outer barrel (1), the gas-liquid separation pipe comprises an inner pipe body (2) and an outer pipe body (3) sleeved outside the inner pipe body (2), a low-pressure channel is formed inside the inner pipe body (2), a liquid discharge hole is formed in the side wall of the low-pressure channel, two ends of the low-pressure channel are respectively communicated with a low-pressure inlet (13) and a low-pressure outlet (14), a high-pressure channel is formed between the outer pipe body (3) and the inner pipe body (2), and two ends of the high-pressure channel are respectively communicated with a high-pressure inlet (11) and a high-pressure outlet.
2. The gas-liquid separator according to claim 1, wherein a pre-heating chamber is formed between the inner wall of the outer barrel (1) and the outer body (3), and the low pressure passage communicates with the low pressure inlet (13) through the pre-heating chamber.
3. The gas-liquid separator according to claim 2, further comprising a gas distribution member (4), the gas distribution member (4) being located within the preheating chamber and between the low pressure passage and the low pressure inlet (13);
preferably, one end of the low-pressure channel, which is far away from the low-pressure outlet (14), is positioned on one side of the air distribution piece (4), which is far away from the low-pressure inlet (13).
4. The gas-liquid separator according to claim 3, wherein the gas distributing member (4) has a cup-like structure with a middle portion projecting toward the cylinder cover (10);
preferably, the end of the low pressure passage remote from the low pressure outlet (14) projects into the cup-shaped structure.
5. The gas-liquid separator according to claim 1, wherein the inner tube (2) comprises a heat exchange section and a preheating section which are sequentially communicated, the preheating section is located at one end of the heat exchange section, which is far away from the low-pressure outlet (14), the liquid drainage hole is located in a side wall of the heat exchange section, and the outer tube (3) is sleeved outside the heat exchange section.
6. The gas-liquid separator according to claim 1 or 5, characterized in that the drain hole is provided with an oil filter nipple (5);
preferably, the inner tube body (2) is fixedly connected with the inner wall of the outer tube (1) through a filtering oil nozzle (5).
7. The gas-liquid separator of claim 1, wherein the high-pressure passage comprises a plurality of high-pressure flow paths extending from the high-pressure inlet to the high-pressure outlet, the plurality of high-pressure flow paths being distributed around an inner tube body.
8. Gas-liquid separator according to claim 7, characterized in that the inner wall of the outer body (3) is provided with a plurality of ribs (31) extending from the high pressure inlet to the high pressure outlet, the plurality of ribs (31) being distributed around the inner body (2) and forming one of said high pressure flow paths between two adjacent ribs (31).
9. The gas-liquid separator according to claim 1 or 7, wherein the high-pressure passage extends spirally around the low-pressure passage;
preferably, the inner tube (2) is externally provided with an external helical groove extending around its outer wall, said external helical groove forming said high pressure channel between the inner tube (2) and the outer tube (3).
More preferably, the inner wall of the inner pipe body (2) is provided with an inner spiral groove which is arranged corresponding to the outer spiral groove.
10. An air conditioning system, characterized by comprising a gas-liquid separator (100) according to any one of claims 1-9;
preferably, the system also comprises an evaporator (200), a compressor (300) and a condenser (400);
a first outer high-pressure inlet and an outer low-pressure outlet are arranged on the evaporator (200), an outer low-pressure inlet and a first outer high-pressure outlet are arranged on the compressor (300), and a second outer high-pressure inlet and a second outer high-pressure outlet are arranged on the condenser (400);
the outer low pressure outlet is communicated with the low pressure inlet, the low pressure outlet is communicated with the outer low pressure inlet, the first outer high pressure outlet is communicated with the second outer high pressure inlet, the second outer high pressure outlet is communicated with the high pressure inlet, and the high pressure outlet is communicated with the first outer high pressure inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911081776.XA CN110887281A (en) | 2019-11-07 | 2019-11-07 | Gas-liquid separator and air conditioning system adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911081776.XA CN110887281A (en) | 2019-11-07 | 2019-11-07 | Gas-liquid separator and air conditioning system adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110887281A true CN110887281A (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911081776.XA Pending CN110887281A (en) | 2019-11-07 | 2019-11-07 | Gas-liquid separator and air conditioning system adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110887281A (en) |
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2019
- 2019-11-07 CN CN201911081776.XA patent/CN110887281A/en active Pending
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