CN116123765A

CN116123765A - Gas-liquid separator

Info

Publication number: CN116123765A
Application number: CN202310018274.2A
Authority: CN
Inventors: 余挺; 覃小军
Original assignee: Zhejiang Yinlun Machinery Co Ltd
Current assignee: Zhejiang Yinlun Machinery Co Ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-16

Abstract

The application relates to a gas-liquid separator, which comprises a gas-liquid separation cylinder, an air outlet pipe, an air inlet end cover and a drying pipe assembly, wherein the gas-liquid separation cylinder is provided with a containing cavity, the air inlet end cover is arranged at an opening of the containing cavity, and an air inlet gap communicated with the containing cavity is arranged between the air inlet end cover and the inner wall of the gas-liquid separation cylinder; one end of the air outlet pipe is connected with the air inlet end cover, and the other end of the air outlet pipe extends into the accommodating cavity, so that the air inlet gap can be communicated with the air outlet pipe through the accommodating cavity; the drying pipe assembly is detachably arranged between the bottom wall of the gas-liquid separation barrel far away from the opening of the accommodating cavity and the air inlet end cover, and the projection of the drying pipe assembly on the air inlet end cover along the center line direction of the gas-liquid separation barrel and the air inlet gap are arranged at intervals. The application provides a gas-liquid separator has solved the maintenance cost height and the poor problem of drying effect of current gas-liquid separator.

Description

Gas-liquid separator

Technical Field

The application relates to the technical field of gas-liquid separation devices, in particular to a gas-liquid separator.

Background

In the air conditioning system of the new energy automobile, on the closed loop of the refrigerant of the system, a gas-liquid separator is generally arranged between an evaporator and a compressor, so that the refrigerant passes through the gas-liquid separator before entering the compressor. And the gas-liquid separator is internally provided with a drying agent to remove water vapor in the refrigerant, so as to avoid liquid impact of the compressor. However, with the use of a vapor-liquid separator, the desiccant within the vapor-liquid separator fails, and the entire vapor-liquid separator typically needs to be replaced, thus resulting in a very high maintenance cost for the vapor-liquid separator. In addition, the existing drying agent is usually placed in a corner of the gas-liquid separator, so that the drying agent has poor absorption effect on water vapor in the gas-liquid separator.

Disclosure of Invention

Based on this, it is necessary to provide a gas-liquid separator to solve the problems of high maintenance cost and poor drying effect of the existing gas-liquid separator.

The gas-liquid separator comprises a gas-liquid separation cylinder, an air outlet pipe, an air inlet end cover and a drying pipe assembly, wherein the gas-liquid separation cylinder is provided with a containing cavity, the air inlet end cover is arranged at an opening of the containing cavity, and an air inlet gap communicated with the containing cavity is formed between the air inlet end cover and the inner wall of the gas-liquid separation cylinder; one end of the air outlet pipe is connected with the air inlet end cover, and the other end of the air outlet pipe extends into the accommodating cavity, so that the air inlet gap can be communicated with the air outlet pipe through the accommodating cavity; the drying pipe assembly is detachably arranged between the bottom wall of the gas-liquid separation barrel far away from the opening of the accommodating cavity and the air inlet end cover, and the projection of the drying pipe assembly on the air inlet end cover along the center line direction of the gas-liquid separation barrel and the air inlet gap are arranged at intervals.

In one embodiment, the gas-liquid separator further comprises a heat return pipe, wherein the heat return pipe is sleeved on the outer side of the air outlet pipe from one end, away from the air inlet end cover, of the air outlet pipe, one end, close to the air inlet end cover, of the heat return pipe is communicated with the accommodating cavity, one end, away from the air inlet end cover, of the heat return pipe is communicated with the air outlet pipe, and the air inlet gap is communicated with the air outlet pipe sequentially through the accommodating cavity and the heat return pipe.

In one embodiment, the plurality of drying tube assemblies are uniformly distributed outside the regenerator tube.

In one embodiment, the gas-liquid separator further comprises a sealing cover, the sealing cover is arranged at the opening of the gas-liquid separation cylinder and matched with the gas-liquid separation cylinder to form a containing cavity, and the air inlet end cover is arranged in the containing cavity; the sealing cover is provided with an air inlet and an air outlet which are respectively communicated with the accommodating cavity, and the air outlet pipe is in sealing connection with the air outlet, so that the accommodating cavity is communicated with the air outlet through the air outlet pipe.

In one embodiment, the edge of the sealing cover is provided with a first stop pin, the gas-liquid separation cylinder is provided with a first matching groove corresponding to the first stop pin, and the first stop pin can be clamped into the first matching groove so as to prevent the sealing cover from rotating relative to the gas-liquid separation cylinder.

In one embodiment, the sealing cover is provided with a second stop pin, the air inlet end cover is provided with a second matching groove corresponding to the second stop pin, and the second stop pin can be clamped into the second matching groove so as to prevent the air inlet end cover from rotating relative to the sealing cover.

In one embodiment, the air inlet end cover is provided with a positioning protrusion, the bottom wall of the air-liquid separation barrel, which is far away from the opening of the accommodating cavity, is provided with a guide sleeve coaxially arranged with the positioning protrusion, one end of the drying pipe assembly is sleeved with the positioning protrusion, and the other end of the drying pipe assembly penetrates through the guide sleeve and is detachably connected with the guide sleeve.

In one embodiment, the gas-liquid separator further comprises a clamp spring, the inner wall of the guide sleeve is provided with an annular clamping groove, the outer ring of the clamp spring is clamped in the clamping groove, and the inner ring of the clamp spring protrudes out of the inner wall of the guide sleeve along the radial direction of the guide sleeve, so that one end, far away from the air inlet end cover, of the drying pipe assembly is stopped at the inner ring of the clamp spring.

In one embodiment, the gas-liquid separator further comprises a screw cap disposed at an opening in the end of the guide sleeve distal from the inlet end cap and in threaded engagement with the drying tube assembly.

In one embodiment, the drying tube assembly comprises a drying agent, a main body part and a cover body part, wherein the main body part is provided with an inner cavity and a plurality of communication holes for communicating the inner cavity with the accommodating cavity, the drying agent is arranged in the inner cavity, and the cover body part is covered at an opening of the inner cavity; the outside of lid portion is equipped with the joint arch, and the inner wall of main part corresponds the joint arch and is equipped with annular assembly groove, and joint protruding and assembly groove joint cooperation to make lid portion joint in the inner wall of main part.

Compared with the prior art, the gas-liquid separator that this application provided, because drying tube subassembly demountable installation keeps away from in the gas-liquid separation section of thick bamboo and holds between diapire and the air inlet end cover of chamber opening part, consequently, use after a period and take place to become invalid when the drier in the drying tube subassembly, directly dismantle and change new drying tube subassembly can, so, greatly reduced gas-liquid separator's maintenance cost.

Further, since the air inlet gap is communicated with the air outlet pipe through the accommodating cavity, the refrigerant can gather from the air inlet gap around the air inlet end cover to the air outlet pipe in the middle. Because the projection of the drying pipe assembly on the air inlet end cover along the center line direction of the air-liquid separation cylinder and the interval of the air inlet gap are arranged, the cooling medium can be contacted with the drying pipe assembly arranged between the bottom wall of the air-liquid separation cylinder and the air inlet end cover in the process of entering the air outlet pipe from the air inlet gap, and the drying pipe assembly can dry the cooling medium. And the drying pipe assembly has a certain turbulence effect on the refrigerant entering the accommodating cavity, so that the refrigerant can fully contact with the drying pipe assembly in the accommodating cavity, and water vapor in the refrigerant is fully absorbed by the drying pipe assembly.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of a gas-liquid separator according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of a gas-liquid separator according to an embodiment provided herein;

FIG. 3 is a cross-sectional view of a gas-liquid separator according to an embodiment provided herein;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a partially exploded view of a gas-liquid separator at a dry tube assembly according to one embodiment provided herein;

FIG. 6 is an exploded view of a seal cap and an air intake end cap according to an embodiment provided herein.

Reference numerals: 100. a gas-liquid separation cylinder; 110. a receiving chamber; 120. an air intake gap; 130. a guide sleeve; 131. a clamping groove; 140. a first mating groove; 200. an air outlet pipe; 300. an air inlet end cover; 310. positioning the bulge; 320. a second mating groove; 400. a drying tube assembly; 410. a main body portion; 411. an inner cavity; 412. a communication hole; 413. an assembly groove; 420. a cover body; 421. the clamping bulge; 430. clamping springs; 440. a screw cap; 450. a seal ring; 500. a heat return pipe; 510. a tube body; 520. a tube cover; 521. an oil suction hole; 600. a filter cover; 700. sealing cover; 710. an air inlet; 720. an air outlet; 730. a first rotation stop pin; 740. and a second rotation stop pin.

Detailed Description

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-6, in order to solve the problems of high maintenance cost and poor drying effect of the existing gas-liquid separator, the present application provides a gas-liquid separator, which includes a gas-liquid separation cylinder 100, a gas outlet pipe 200, a gas inlet end cover 300 and a drying pipe assembly 400, wherein the gas-liquid separation cylinder 100 is provided with a containing cavity 110, the gas inlet end cover 300 is arranged at an opening of the containing cavity 110, and a gas inlet gap 120 communicating with the containing cavity 110 is arranged between the gas inlet end cover 300 and an inner wall of the gas-liquid separation cylinder 100. One end of the air outlet pipe 200 is connected to the air inlet end cover 300, and the other end extends into the accommodating cavity 110, so that the air inlet gap 120 can be communicated with the air outlet pipe 200 through the accommodating cavity 110. The drying pipe assembly 400 is detachably installed between the bottom wall of the gas-liquid separation cylinder 100, which is far away from the opening of the accommodating cavity 110, and the air inlet end cover 300, and the projection of the drying pipe assembly 400 on the air inlet end cover 300 along the central line direction of the gas-liquid separation cylinder 100 and the air inlet gap 120 are arranged at intervals.

Because the drying pipe assembly 400 is detachably installed between the bottom wall of the gas-liquid separation cylinder 100, which is far away from the opening of the accommodating cavity 110, and the air inlet end cover 300, when the drying agent in the drying pipe assembly 400 is used for a period of time and fails, the drying pipe assembly 400 is directly detached and replaced, so that the maintenance cost of the gas-liquid separator is greatly reduced.

Further, since the air inlet gap 120 communicates with the air outlet pipe 200 through the accommodating chamber 110, the refrigerant can gather from the air inlet gap 120 around the air inlet end cap 300 toward the air outlet pipe 200 in the middle. Because the drying tube assembly 400 is disposed on the air inlet end cover 300 along the projection of the center line direction of the air-liquid separation cylinder 100 and the air inlet gap 120 at intervals, the cooling medium can contact the drying tube assembly 400 disposed between the bottom wall of the air-liquid separation cylinder 100 and the air inlet end cover 300 during the process of entering the air outlet pipe 200 from the air inlet gap 120, and thus the drying tube assembly 400 can dry the cooling medium. In addition, the drying tube assembly 400 has a certain turbulence effect on the refrigerant entering the accommodating cavity 110, so that the refrigerant can fully contact the drying tube assembly 400 in the accommodating cavity 110, and the water vapor in the refrigerant is fully absorbed by the drying tube assembly 400.

In an embodiment, as shown in fig. 2-5, the drying tube assembly 400 includes a drying agent (not shown), a main body 410 and a cover 420, the main body 410 is provided with an inner cavity 411 and a plurality of communication holes 412 for communicating the inner cavity 411 with the accommodating cavity 110, the drying agent is disposed in the inner cavity 411, and the cover 420 is covered at an opening of the inner cavity 411. The outer side of the cover body 420 is provided with a clamping protrusion 421, the inner wall of the main body 410 is provided with an annular assembly groove 413 corresponding to the clamping protrusion 421, and the clamping protrusion 421 is matched with the assembly groove 413 in a clamping manner, so that the cover body 420 is clamped on the inner wall of the main body 410.

In an embodiment, as shown in fig. 3 and 4, the air inlet end cover 300 is provided with a positioning protrusion 310, the bottom wall of the air-liquid separation barrel 100, which is far away from the opening of the accommodating cavity 110, is provided with a guide sleeve 130 coaxially arranged with the positioning protrusion 310, one end of the drying pipe assembly 400 is sleeved on the positioning protrusion 310, and the other end of the drying pipe assembly 400 is penetrated through the guide sleeve 130 and is detachably connected with the guide sleeve 130.

Thus, the installation accuracy of the drying duct assembly 400 is greatly improved, and the drying duct assembly 400 is prevented from being eccentric in the installation process.

Further, in an embodiment, as shown in fig. 3-5, the gas-liquid separator further includes a clamp spring 430, an annular clamping groove 131 is provided on an inner wall of the guide sleeve 130, an outer ring of the clamp spring 430 is clamped to the clamping groove 131, and an inner ring of the clamp spring 430 protrudes from the inner wall of the guide sleeve 130 along a radial direction of the guide sleeve 130, so that an end of the drying tube assembly 400, which is far away from the air inlet end cover 300, is stopped at the inner ring of the clamp spring 430.

Generally, the clamp spring 430 has a notch, and by enlarging or reducing the notch of the clamp spring 430, the diameter of the clamp spring 430 can be increased or reduced, so that the clamp spring 430 can be clamped or separated from the clamping groove 131. When assembling the drying duct assembly 400, the drying duct assembly 400 may be inserted into the guide sleeve 130, and then the clip spring 430 is clipped into the clipping slot 131 to prevent the drying duct assembly 400 from sliding out of the guide sleeve 130. In the process of disassembling the drying pipe assembly 400, the snap spring 430 can be first shifted to disengage from the clamping groove 131, and then the drying pipe assembly 400 is taken out. In this manner, the disassembly and assembly of the drying duct assembly 400 is greatly facilitated.

In one embodiment, as shown in fig. 3-5, the gas-liquid separator further includes a screw cap 440, and the screw cap 440 covers an opening of the guide sleeve 130 at an end remote from the gas inlet end cap 300 and is screw-engaged with the drying pipe assembly 400.

Thus, a certain sealing effect can be achieved on the drying duct assembly 400, and dust and water vapor are prevented from entering the drying duct assembly 400.

To enhance the sealing effect, in one embodiment, as shown in fig. 4 and 5, the gas-liquid separator further includes a sealing ring 450, and the sealing ring 450 is sleeved on the outer side of the drying pipe assembly 400 and is tightly matched with the inner wall of the guide sleeve 130.

In order to further reduce the water vapor in the refrigerant, in an embodiment, as shown in fig. 2 and 3, the gas-liquid separator further includes a heat recovery tube 500, wherein the heat recovery tube 500 is sleeved on the outer side of the gas outlet tube 200 from the end of the gas outlet tube 200 away from the gas inlet end cover 300, and one end of the heat recovery tube 500 close to the gas inlet end cover 300 is communicated with the accommodating cavity 110, one end of the heat recovery tube 500 away from the gas inlet end cover 300 is communicated with the gas outlet tube 200, and the gas inlet gap 120 is sequentially communicated with the gas outlet tube 200 through the accommodating cavity 110 and the heat recovery tube 500.

Since the air inlet gap 120 is sequentially communicated with the air outlet pipe 200 through the accommodating cavity 110 and the heat recovery pipe 500, and one end of the heat recovery pipe 500 close to the air inlet end cover 300 is communicated with the accommodating cavity 110 and one end of the heat recovery pipe 500 far from the air inlet end cover 300 is communicated with the air outlet pipe 200. Therefore, the refrigerant of the gas-liquid two phases firstly enters the accommodating cavity 110 through the air inlet gap 120, then the refrigerant of the gas rises and enters the heat return pipe 500 through one end of the heat return pipe 500 close to the air inlet end cover 300, and then the refrigerant of the gas enters the air outlet pipe 200 from one end of the heat return pipe 500 far from the air outlet pipe 200 and leaves the gas-liquid separator. As can be seen from the above, the refrigerant entering the accommodating chamber 110 enters the heat recovery tube 500 and then enters the air outlet tube 200, and it can be understood that the temperature of the refrigerant decreases with the increase of the refrigerant stroke, so that the temperature of the refrigerant in the heat recovery tube 500 is higher than the temperature of the refrigerant in the air outlet tube 200. Because the heat return pipe 500 is sleeved outside the air outlet pipe 200 from the end, away from the air inlet end cover 300, of the air outlet pipe 200, the refrigerant in the heat return pipe 500 can heat the refrigerant in the air outlet pipe 200, so that the temperature of the refrigerant in the air outlet pipe 200 is increased, the refrigerant in the air outlet pipe 200 is prevented from being liquefied due to the fact that the temperature of the refrigerant in the air outlet pipe 200 is reduced, water vapor in the refrigerant is reduced, and the gas-liquid separation effect of the gas-liquid separator is improved.

In one embodiment, as shown in fig. 3, the heat-return pipe 500 includes a pipe body 510 and a pipe cover 520, the pipe body 510 is sleeved outside the air outlet pipe 200, and the pipe cover 520 is installed at one end of the pipe body 510 far away from the air inlet end cover 300.

In this manner, machining and assembly of the heat pipe 500 is facilitated.

In an embodiment, the tube 510 and the tube cap 520 are of a split design, and in particular, the tube 510 and the tube cap 520 may be fastened, welded, or screwed. However, in other embodiments, the tube 510 and the tube cover 520 may be integrally formed, and in particular, the tube 510 and the tube cover 520 may be integrally injection molded, or may be integrally formed by 3D printing.

Further, in one embodiment, the cross section of the tube 510 is square, and in another embodiment, the cross section of the tube 510 is elliptical.

But is not limited thereto, the cross section of the tube body 510 may be circular or other polygonal shape.

Still further, the regenerator tube 500 further includes a connecting rib (not shown) extending along the axial direction of the tube body 510, one end of the connecting rib is connected to the outer wall of the outlet tube 200, and the other end is connected to the inner wall of the regenerator tube 500.

Thus, the connection strength of the heat recovery pipe 500 and the air outlet pipe 200 is greatly enhanced, and the installation difficulty of the heat recovery pipe 500 is reduced.

Further, in one embodiment, as shown in fig. 3, the pipe cover 520 is provided with an oil suction hole 521 capable of communicating with the accommodating chamber 110, and a filter cover 600 is disposed between the oil suction hole 521 and the accommodating chamber 110, and the filter cover 600 is covered at an end of the heat return pipe 500 away from the air inlet end cover 300.

In this way, oily substances such as lubricating oil in the accommodating cavity 110 can be sucked into the compressor through the oil suction hole 521 by the air suction pipe, and the filter cover 600 can filter out some impurities in the accommodating cavity 110, so that the impurities are prevented from entering the compressor.

In one embodiment, the plurality of drying tube assemblies 400 are uniformly distributed outside of the regenerator tube 500.

In this manner, the drying efficiency of the drying duct assembly 400 is greatly improved.

In an embodiment, as shown in fig. 2 and 3, the gas-liquid separator further includes a sealing cover 700, the sealing cover 700 is covered at the opening of the gas-liquid separation cylinder 100 and cooperates with the gas-liquid separation cylinder 100 to form a containing cavity 110, and the gas inlet end cover 300 is disposed in the containing cavity 110. The sealing cover 700 is provided with an air inlet 710 and an air outlet 720 which are respectively communicated with the accommodating cavity 110, and the air outlet pipe 200 is in sealing connection with the air outlet 720, so that the accommodating cavity 110 is communicated with the air outlet 720 through the air outlet pipe 200.

It will be appreciated that the gas inlet 710 and the gas outlet 720 are generally connected to pipes (not shown), and thus, when the gas inlet 710 and the gas outlet 720 are disposed on the side wall of the gas-liquid separation barrel 100, the side wall of the gas-liquid separation barrel 100 is curved, and therefore, the pipe is difficult to be assembled on the gas-liquid separation barrel 100. Therefore, the air inlet 710 and the air outlet 720 are arranged on the sealing cover 700, which is beneficial to reducing the installation difficulty of the pipeline and the gas-liquid separation cylinder 100.

In an embodiment, the air inlet end cap 300 is disposed between the heat-return pipe 500 and the air outlet 720, and the air inlet end cap 300 is sleeved outside one end of the air outlet pipe 200 near the air outlet 720.

In this way, the difficulty of installing the air inlet end cap 300 is greatly reduced.

Further, in an embodiment, as shown in fig. 2 and 6, a first stop pin 730 is provided at an edge of the sealing cover 700, and a first engagement groove 140 is provided corresponding to the first stop pin 730 in the gas-liquid separation cylinder 100, and the first stop pin 730 can be snapped into the first engagement groove 140 to prevent the sealing cover 700 from rotating relative to the gas-liquid separation cylinder 100.

In this way, the assembly accuracy of the seal cover 700 and the gas-liquid separation cartridge 100 can be improved.

Similarly, in one embodiment, as shown in fig. 6, the sealing cover 700 is provided with a second stop pin 740, and the air inlet end cover 300 is provided with a second matching groove 320 corresponding to the second stop pin 740, and the second stop pin 740 can be snapped into the second matching groove 320 to prevent the air inlet end cover 300 from rotating relative to the sealing cover 700.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims

1. The gas-liquid separator is characterized by comprising a gas-liquid separation cylinder (100), an air outlet pipe (200), an air inlet end cover (300) and a drying pipe assembly (400), wherein the gas-liquid separation cylinder (100) is provided with a containing cavity (110), the air inlet end cover (300) is arranged at the opening of the containing cavity (110), and an air inlet gap (120) communicated with the containing cavity (110) is arranged between the air inlet end cover (300) and the inner wall of the gas-liquid separation cylinder (100); one end of the air outlet pipe (200) is connected with the air inlet end cover (300), and the other end of the air outlet pipe extends into the accommodating cavity (110) so that the air inlet gap (120) can be communicated with the air outlet pipe (200) through the accommodating cavity (110); the drying pipe assembly (400) is detachably arranged between the bottom wall of the gas-liquid separation barrel (100) far away from the opening of the accommodating cavity (110) and the air inlet end cover (300), and the projection of the drying pipe assembly (400) on the air inlet end cover (300) along the central line direction of the gas-liquid separation barrel (100) and the air inlet gap (120) are arranged at intervals.

2. The gas-liquid separator according to claim 1, further comprising a heat recovery tube (500), wherein the heat recovery tube (500) is sleeved on the outer side of the air outlet tube (200) from one end of the air outlet tube (200) away from the air inlet end cover (300), one end of the heat recovery tube (500) close to the air inlet end cover (300) is communicated with the accommodating cavity (110), one end of the heat recovery tube (500) away from the air inlet end cover (300) is communicated with the air outlet tube (200), and the air inlet gap (120) is sequentially communicated with the air outlet tube (200) through the accommodating cavity (110) and the heat recovery tube (500).

3. The gas-liquid separator according to claim 2, wherein a plurality of the drying tube assemblies (400) are uniformly distributed outside the regenerator tube (500).

4. The gas-liquid separator according to claim 1, further comprising a sealing cover (700), wherein the sealing cover (700) covers the opening of the gas-liquid separation cylinder (100) and cooperates with the gas-liquid separation cylinder (100) to form the accommodating cavity (110), and the gas inlet end cover (300) is arranged in the accommodating cavity (110); the sealing cover (700) is provided with an air inlet (710) and an air outlet (720) which are respectively communicated with the accommodating cavity (110), and the air outlet pipe (200) is in sealing connection with the air outlet (720), so that the accommodating cavity (110) is communicated with the air outlet (720) through the air outlet pipe (200).

5. The gas-liquid separator according to claim 4, wherein a first stop pin (730) is provided at an edge of the sealing cover (700), the gas-liquid separation cylinder (100) is provided with a first fitting groove (140) corresponding to the first stop pin (730), and the first stop pin (730) can be clamped into the first fitting groove (140) to prevent the sealing cover (700) from rotating relative to the gas-liquid separation cylinder (100).

6. The gas-liquid separator according to claim 4, wherein the sealing cover (700) is provided with a second stop pin (740), the gas inlet end cover (300) is provided with a second matching groove (320) corresponding to the second stop pin (740), and the second stop pin (740) can be clamped into the second matching groove (320) so as to prevent the gas inlet end cover (300) from rotating relative to the sealing cover (700).

7. The gas-liquid separator according to claim 1, wherein the gas inlet end cover (300) is provided with a positioning protrusion (310), the bottom wall of the gas-liquid separation barrel (100) far away from the opening of the accommodating cavity (110) is provided with a guide sleeve (130) coaxially arranged with the positioning protrusion (310), one end of the drying pipe assembly (400) is sleeved on the positioning protrusion (310), and the other end of the drying pipe assembly (400) is penetrated through the guide sleeve (130) and detachably connected with the guide sleeve (130).

8. The gas-liquid separator according to claim 7, further comprising a clamp spring (430), wherein an annular clamping groove (131) is formed in the inner wall of the guide sleeve (130), an outer ring of the clamp spring (430) is clamped in the clamping groove (131), and an inner ring of the clamp spring (430) protrudes out of the inner wall of the guide sleeve (130) along the radial direction of the guide sleeve (130), so that one end, away from the air inlet end cover (300), of the drying pipe assembly (400) is stopped at the inner ring of the clamp spring (430).

9. The gas-liquid separator of claim 7, further comprising a screw cap (440), the screw cap (440) covering an opening in the guide sleeve (130) at an end remote from the gas inlet end cap (300) and threadably engaging the drying tube assembly (400).

10. The gas-liquid separator according to claim 1, wherein the drying pipe assembly (400) comprises a drying agent, a main body portion (410) and a cover body portion (420), the main body portion (410) is provided with an inner cavity (411) and a plurality of communication holes (412) communicating the inner cavity (411) with the accommodating cavity (110), the drying agent is provided in the inner cavity (411), and the cover body portion (420) is covered at an opening of the inner cavity (411); the outside of lid portion (420) is equipped with joint protruding (421), the inner wall of main part (410) corresponds joint protruding (421) is equipped with annular assembly groove (413), joint protruding (421) with assembly groove (413) joint cooperation, so that lid portion (420) joint in the inner wall of main part (410).