CN110631298B

CN110631298B - Gas-liquid separator

Info

Publication number: CN110631298B
Application number: CN201810645961.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2018-06-21
Filing date: 2018-06-21
Publication date: 2022-04-05
Anticipated expiration: 2038-06-21
Also published as: CN110631298A

Abstract

The utility model provides a vapour and liquid separator includes the heat exchange assembly, the heat exchange assembly includes the main part, first pipe portion and second pipe portion, the second chamber is arranged in to the main part, first main part includes first interface and second interface, the pore intercommunication of first interface and first pipe portion, the pore intercommunication of second interface and second pipe portion, the main part includes first end and second end, still be equipped with in the main part and hold the chamber, the pore of first pipe portion with hold the chamber and be linked together, the pore of second pipe portion with hold the chamber and be linked together, the main part still includes a plurality of perforating holes that run through the main part, the perforating hole extends to the second end from first end, and the perforating hole is linked together with the second chamber, the perforating hole is not linked together with holding the chamber, because the main part is not the spiral tube structure, first pipe portion is difficult crooked with second pipe portion, the installation of the heat exchange assembly of being convenient for.

Description

Gas-liquid separator

Technical Field

The invention relates to the technical field of air conditioners, in particular to a gas-liquid separator.

Background

In the air conditioning system, the gas-liquid separator with internal heat exchange comprises a heat exchange assembly, the internal heat exchange assembly is mostly of a spiral pipe structure, high-temperature and high-pressure refrigerant circulates inside the spiral pipe, low-temperature and low-pressure refrigerant flows through the outer side of the spiral pipe, and the high-temperature and high-pressure refrigerant and the low-temperature and low-pressure refrigerant exchange heat through the spiral pipe.

Disclosure of Invention

The invention provides a gas-liquid separator with a new structure, which comprises a first main body and a second main body, wherein the first main body comprises a first shell and a first seal head, the first shell and the first seal head are fixedly arranged, the second main body comprises a second shell and a second seal head, the second shell and the second seal head are fixedly arranged, at least part of the second main body is arranged in the first main body, the first seal head comprises a first hole, the second seal head comprises a second hole and a third hole, the first hole is communicated with the second hole, a first cavity is arranged in the second main body, a second cavity is arranged in the first main body, the first hole is communicated with the first cavity through the second hole, and the second cavity is communicated with the first cavity through the third hole;

the gas-liquid separator also comprises a heat exchange assembly, the heat exchange assembly comprises a main body part, a first pipe part and a second pipe part, the main body part is arranged in the second cavity, the first interface is communicated with the pore passage of the first pipe part, and the second interface is communicated with the pore passage of the second pipe part;

the main body part comprises a first end part and a second end part, an accommodating cavity is further arranged in the main body part, a pore passage of the first pipe part is communicated with the accommodating cavity, a pore passage of the second pipe part is communicated with the accommodating cavity, and the pore passage of the first pipe part is communicated with the pore passage of the second pipe part through the accommodating cavity; the main body further includes a plurality of through holes penetrating the main body, the through holes extending from the first end to the second end and communicating with the second cavity, the through holes not communicating with the accommodating cavity.

The heat exchange assembly in the technical scheme comprises a main body part, a first pipe part and a second pipe part, wherein the main body part is arranged in the second cavity and comprises a plurality of through holes, and the heat exchange assembly is simple to mount.

Drawings

FIG. 1 is a schematic cross-sectional view of a gas-liquid separator according to an embodiment of the invention;

FIG. 2 is a schematic cross-sectional view of another aspect of a gas-liquid separator according to an embodiment of the invention;

fig. 3 is a schematic perspective view of the second head shown in fig. 1;

FIG. 4 is a schematic perspective view of the first head, the second head, the inner tube, the outer tube, the drying bag, and the filter shown in FIG. 1;

FIG. 5 is a schematic three-dimensional exploded view of the first head, the second head, the inner tube, the outer tube, the drying bag and the filter shown in FIG. 4;

FIG. 6 is a perspective view of the heat exchange assembly of FIG. 1;

FIG. 7 is a schematic perspective view of the heat exchange assembly of FIG. 1 in another orientation;

FIG. 8 is a schematic cross-sectional view of a gas-liquid separator according to a second embodiment;

FIG. 9 is a schematic cross-sectional view of a gas-liquid separator according to a third embodiment;

FIG. 10 is a schematic sectional view of a gas-liquid separator according to a fourth embodiment.

Detailed Description

Referring to fig. 1, fig. 1 is a schematic cross-sectional view of a gas-liquid separator according to an embodiment. In the present embodiment, the gas-liquid separator 100 includes a first body 1 and a second body 2. The second body 2 is at least partially disposed within the first body 1. In this embodiment, the second body 2 is located within the first body 1 in a manner that facilitates manufacture and installation.

Wherein first main part 1 includes first casing 11 and first head 12, and first casing 11 and first head 12 are fixed to be set up, and the junction can be sealed through welding, spiro union etc.. The second body 2 comprises a second shell 21 and a second seal head 22, the second shell 21 and the second seal head 22 are fixedly arranged, and the joint can be sealed through welding, screwing and the like. In this embodiment, the first housing 11, the first sealing head 12, the second housing 21, and the second sealing head 22 are made of metal, the first housing 11 and the first sealing head 12 can be fixed by welding, the second housing 21 and the second sealing head 22 can also be fixed by welding, and of course, the first housing, the first sealing head, the second housing, and the second sealing head can also be made of other materials, such as plastics.

The gas-liquid separator 100 includes a third pipe portion 3, a first hole 121 and a second hole 221, the first hole 121 is located at the first head 12, the second hole 221 is located at the second head 22, one end of the third pipe portion 3 is fixed to the inner side wall of the first hole 121, so that one end of the third pipe portion 3 is fixed to the first head 12, and the first body is fixed to the second body through the third pipe portion. It should be noted here that in the present embodiment, the third pipe portion 3 is a part of the second sealing head 22, but in other embodiments, the third pipe portion 3 may be a part of the first sealing head 12, and one end of the third pipe portion 3 is fixed to the inner side wall of the second hole 221, or the third pipe portion 3 may be a separate component, and one end is fixed to the first sealing head 12 and the other end is fixed to the second sealing head 22.

By providing the third pipe portion 3, the outer bottom wall of the second casing 21 can be brought into contact with the inner bottom wall of the first casing 11, so that the second body can be placed more stably in the first body, facilitating the fixation of the second casing 21 and the first casing 11 by welding.

A hole is arranged in the third pipe part 3, the first hole 121 is communicated with the hole in the third pipe part 3, the second hole 221 is communicated with the hole in the third pipe part 3, and the first hole 121 can be communicated with the second hole 221 through the hole in the third pipe part 3.

The second body 2 is provided with a first chamber 23, and the second hole 221 communicates with the first chamber 23, so that the low-temperature and low-pressure refrigerant can enter the first chamber 23 through the first hole 121, the hole passage in the third pipe portion 3, and the second hole 221.

Referring to fig. 1-7, the gas-liquid separator 100 further includes an inner tube 4 and an outer tube 5, wherein at least a portion of the inner tube 4 extends into the outer tube 5, and one end of the outer tube 5 is fixed to the inner tube 4, and the end of the outer tube 5 is sealed by the inner tube 4. The second sealing head 22 further comprises a third hole 222, the inner tube 4 at least partially extends into the third hole 222, the outer wall of the inner tube 4 and the inner wall corresponding to the third hole 222 can be fixed and sealed, and the inner tube 4 and the second sealing head 22 can be fixed through welding. The outer side wall of the inner tube 4 and the inner side wall of the outer tube 5 form a first flow passage 53, while the inner tube 4 forms a second flow passage 43, and the third hole 222 communicates with the second flow passage 43. The outer tube 5 comprises at least one flow hole 51, in this embodiment, the outer tube 5 comprises two flow holes 51, the flow hole 51 penetrates through the sidewall of the outer tube 5, and the flow hole 51 is relatively close to the end of the outer tube 5 sealed by the inner tube 4, so that the refrigerant in the first chamber can enter the first flow channel 53 through the flow hole, then flow into the second flow channel 43 through the bottom of the outer tube 5, and then flow out of the second body 2 through the third hole 222. This arrangement facilitates the processing of the flow hole, and reduces the possibility that the liquid-phase refrigerant enters the first flow passage through the flow hole. It should be noted here that the inner pipe 4 is not entirely located within the outer pipe 5 and is referred to as an inner pipe, and a part of the inner pipe 4 is located outside the outer pipe 5.

It should be noted here that the gas-liquid separation function may be achieved by replacing the inner and outer tubes with the U-shaped tube structure or by removing the inner and outer tubes. The inner pipe and the outer pipe adopted by the embodiment occupy small space and are compact in structure.

The gas-liquid separator 100 further includes a filter 6, the other end of the outer tube 5 is fixedly connected to the filter 6, the end of the outer tube 5 closest to the bottom of the second housing 21 is defined as a first end 52, the end of the inner tube 4 closest to the bottom of the second housing 21 is defined as a second end 42, and the distance between the first end 52 and the bottom of the second housing 21 is smaller than the distance between the second end 42 and the bottom of the second housing 21, so that the first flow passage communicates with the second flow passage.

The first body 1 is provided with a second cavity 9, specifically, the inner wall of the first body 1 and the outer wall of the second body 2 form the second cavity 9, because the first seal head and the second seal head are kept at a distance, the first end portion 713 and one end of the first seal head 12 facing the second cavity 9 are at a distance, and the space between the first seal head 12 and the second seal head 22 is a part of the second cavity 9, so that the third hole 222 is communicated with the second cavity 9, and the refrigerant in the first cavity 23 can flow to the second cavity 9 through the circulation hole 51, the first flow channel 53, the second flow channel 43 and the third hole 222.

The gas-liquid separator 100 further comprises a drying bag 8, the drying bag 8 is located in the first cavity 23, the drying bag 8 is of a cylindrical structure, the outer pipe 5 is sleeved with the drying bag 8, the drying bag can absorb moisture in the refrigerant, and the space of the shell can be saved.

The gas-liquid separator 100 further comprises a heat exchange assembly 7, the heat exchange assembly 7 being at least partially disposed in the second chamber 9. The heat exchange assembly 7 comprises a main body portion 71, a first pipe portion 104 and a second pipe portion 105, the main body portion 71 being disposed in the second chamber 9. The body portion 71 comprises a first wall portion 711, a second wall portion 712, a first end portion 713, and a second end portion 714, wherein the first end portion 713 faces the first end socket 12, and the second end portion 714 faces the bottom of the second cavity 9. The main body portion 71 is fitted to the second casing 21, the first wall portion 711 is in clearance fit or interference fit with the inner wall of the first casing 11, and the second wall portion 712 is in clearance fit or interference fit with the outer wall of the second casing 12, so that the possibility that the low-temperature and low-pressure refrigerant flows out from the clearance between the main body portion and the first and second casings can be reduced.

The first body 1 comprises a first connector 13 and a second connector 14, the hole of the first pipe part 104 is communicated with the first connector 13, the hole of the second pipe part 105 is communicated with the second connector 14, and the first pipe part 104 and the second pipe part 105 are fixed with the first seal head 12. The body portion 71 includes a third port 715 and a fourth port 716, with the bore of the first tube portion 104 communicating with the third port 715 and the bore of the second tube portion 105 communicating with the fourth port 716. The main body part 71 is also internally provided with an accommodating cavity 717, the pore passage of the first pipe part 104 is communicated with the accommodating cavity 717, the pore passage of the second pipe part 105 is also communicated with the accommodating cavity 717, the pore passage of the first pipe part 104 is communicated with the pore passage of the second pipe part 105 through the accommodating cavity 717, so that high-temperature and high-pressure refrigerant can enter the pore passage of the first pipe part through the first interface, then enter the third interface through the pore passage of the first pipe part, then enter the accommodating cavity from the third interface, then enter the fourth interface and the pore passage of the second pipe part from the accommodating cavity, and then flow out of the gas-liquid separator from the second interface. Because the main part is not the spiral pipe structure, the crooked problem of first pipe portion and second pipe portion that leads to in not having the spiral pipe course of working, the installation of the first pipe portion of being convenient for and second pipe portion.

The body portion 71 further includes a plurality of through holes 7131 penetrating through the body portion 71, the through holes 7131 extend from the first end portion 713 to the second end portion 714, the through holes 7131 are communicated with the second cavity, the through holes 7131 are not communicated with the accommodating cavity 717, the outer wall of the accommodating cavity 717 is composed of the first end portion 713, the second end portion 714, the first wall portion 711, the second wall portion 712 and the outer wall of the through holes 7131, the accommodating cavity 717 does not include the space in the through holes 7131, and the through holes 7131 are uniformly distributed. In this way, the low-temperature low-pressure refrigerant can pass through the main body portion 71 through the through holes 7131, and in this process, the low-temperature low-pressure refrigerant in the through holes 7131 does not enter the accommodating chamber 717, the high-temperature high-pressure refrigerant in the accommodating chamber 717 does not enter the through holes 7131, and the low-temperature low-pressure refrigerant in the through holes 7131 can exchange heat with the high-temperature high-pressure refrigerant in the accommodating chamber 717. The gas-liquid separator 100 further includes a fourth hole 111, the fourth hole 111 being located at the bottom of the second chamber 9, the third hole 222 communicating with the fourth hole 111 through a penetration hole 7131, so that the low-temperature and low-pressure refrigerant coming out of the third hole 222 can be discharged out of the gas-liquid separator 100 from the fourth hole 111 through the penetration hole 7131. The second end 714 is spaced from the bottom of the second chamber 9 by a distance such that the low-temperature and low-pressure refrigerant coming out of the through hole can flow out of the fourth hole.

In this embodiment, the first pipe 104 of the heat exchange assembly 7 protrudes from the first end 713 in the direction of the first head 12, the first port 13 is located at the first head 12, the third port 715 is located at the first end 713, the first pipe 104 is at least partially disposed in the first port 13, at least a portion of the outer periphery of the first pipe 104 is fixed and sealed to the inner periphery of the first port 13, the second pipe 105 of the heat exchange assembly 7 protrudes from the first end 713 in the direction of the first head 12, the second port 14 is located at the first head 12, the fourth port 716 is located at the first end 713, the second pipe 105 is at least partially disposed in the second port 14, at least a portion of the outer periphery of the second pipe 105 is fixed and sealed to the inner periphery of the second port 14, and the first pipe and the second pipe are integrally formed with the main body, so that the number of parts can be reduced, and the heat exchange assembly can be fixed to the first body.

Referring to fig. 8, in another embodiment, the first port 13 is located at the first end enclosure 12 ', the second port 14' is located at the bottom of the first cavity 9, the first pipe 104 is at least partially disposed in the first port 13, at least a portion of an outer peripheral side of the first pipe 104 is fixed to an inner peripheral side of the first port 13 and is hermetically connected to the inner peripheral side, the second pipe 105 is at least partially disposed in the second port 14 ', and at least a portion of an outer peripheral side of the second pipe 104 is fixed to an inner peripheral side of the second port 14' and is hermetically connected to the inner peripheral side.

Referring to fig. 9, in the third embodiment, compared to the first embodiment, the first port 13 is located on the first sealing head 12 ", the second port 14 is located on the first sealing head 12", and the first pipe portion 104 and the second pipe portion 105 are part of the first sealing head 12 ".

Referring to fig. 10, in the fourth embodiment, compared to the second embodiment, the first port 13 is located on the first sealing head 12 '″, the second port 14' is located at the bottom of the first cavity 9, the first pipe portion 104 is a portion of the first sealing head 12 '″, and the second pipe portion 105 is a portion of the first housing 11'.

Of course, the first pipe portion and the second pipe portion may be separate components, one end of the duct of the first pipe portion is communicated with the first port, the other end of the duct is communicated with the third port, one end of the duct of the second pipe portion is communicated with the second port, and the other end of the duct is communicated with the fourth port.

In operation, a low-temperature and low-pressure gas-liquid two-phase refrigerant enters the first cavity 23 from the first hole 121, the third pipe portion 3 and the second hole 221, under the action of gravity, a liquid-phase refrigerant enters the bottom of the first body 1, a gas-phase refrigerant enters the first flow channel 53 from the circulation hole 51, then the gas-phase refrigerant enters the second flow channel 43 from the first flow channel 53, oil is filtered by the filter 6 and enters the second flow channel 43, the gas-phase refrigerant, a very small amount of liquid-phase refrigerant and oil flow out of the first body 1 from the third hole 222, the gas-phase refrigerant, a very small amount of liquid-phase refrigerant and oil flow into the second cavity 9, and the gas-phase refrigerant, a very small amount of liquid-phase refrigerant and oil flow into the through hole 7131. The high-temperature and high-pressure refrigerant enters the hole passage of the first pipe portion 104 through the first port 13, then enters the third port 715 through the hole passage of the first pipe portion 104, then enters the accommodating chamber from the third port 715, then enters the fourth port 716, the hole passage of the second pipe portion 105 from the accommodating chamber 717, and then exits the gas-liquid separator 100 from the second port 14. The high-temperature and high-pressure refrigerant heats the gas-phase refrigerant, the extremely small amount of liquid-phase refrigerant, and the oil in the through hole 7131 to change the extremely small amount of liquid-phase refrigerant into the gas-phase refrigerant, and then the gas-phase refrigerant and the oil flow out of the body portion 71 through the through hole 7131 and then flow out of the gas-liquid separator 100 through the fourth hole 111.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention.

Claims

1. A gas-liquid separator is characterized by comprising a first main body and a second main body, wherein the first main body comprises a first shell and a first seal head, the first shell and the first seal head are fixedly arranged, the second main body comprises a second shell and a second seal head, the second shell and the second seal head are fixedly arranged, at least part of the second main body is arranged in the first main body, the first seal head comprises a first hole, the second seal head comprises a second hole and a third hole, the first hole is communicated with the second hole, a first cavity is arranged in the second main body, a second cavity is arranged in the first main body, the first hole is communicated with the first cavity through the second hole, the second cavity is communicated with the first cavity through the third hole, and the first main body further comprises a first connector and a second connector;

the first pipe part is at least partially arranged in the first interface, at least part of the outer periphery of the first pipe part is fixed with the inner periphery of the first interface and the joint of the first pipe part is in sealing arrangement, at least part of the second pipe part is arranged in the second interface, and at least part of the outer periphery of the second pipe part is fixed with the inner periphery of the second interface and the joint of the second pipe part is in sealing arrangement;

2. The gas-liquid separator of claim 1, wherein the body portion further comprises a first wall portion and a second wall portion, the body portion is sleeved on the second housing, the first wall portion is in clearance fit or interference fit with an inner wall of the first housing, and the second wall portion is in clearance fit or interference fit with an outer wall of the second housing.

3. The gas-liquid separator according to claim 2, wherein the first port and the second port are located in the first head, the first tube portion is at least partially disposed in the first port, at least a portion of an outer peripheral side of the first tube portion is fixed to an inner peripheral side of the first port and a joint of the first tube portion and the second tube portion is hermetically disposed in the second port, and at least a portion of an outer peripheral side of the second tube portion is fixed to an inner peripheral side of the second port and a joint of the second tube portion and the second port is hermetically disposed;

the gas-liquid separator further includes a fourth hole located at the bottom of the second chamber, the third hole communicating with the fourth hole through the through hole.

4. The gas-liquid separator according to claim 2, wherein the first port is located at the first head, the second port is located at a bottom of the second chamber, the first tube portion is at least partially disposed in the first port, at least a portion of an outer peripheral side of the first tube portion is fixed to and sealingly joined to an inner peripheral side of the first port, the second tube portion is at least partially disposed in the second port, and at least a portion of an outer peripheral side of the second tube portion is fixed to and sealingly joined to an inner peripheral side of the second port;

5. The gas-liquid separator of any one of claims 3-4, wherein the first end is oriented toward the first head and the second end is oriented toward the bottom of the second chamber, the first end is spaced a distance from an end of the first head oriented toward the second chamber, the second end is spaced a distance from the bottom of the second chamber, and the first head is spaced a distance from the second head.

6. The gas-liquid separator according to claim 5, wherein the second head comprises a third tube portion, one end of the third tube portion is fixed to an inner side wall of the first hole, a hole passage is formed in the third tube portion, the first hole is communicated with the hole passage in the third tube portion, and the second hole is communicated with the hole passage in the third tube portion.

7. The gas-liquid separator according to claim 5, wherein the first head comprises a third tube portion, one end of the third tube portion is fixed to an inner side wall of the second hole, a hole passage is formed in the third tube portion, the first hole is communicated with the hole passage in the third tube portion, and the second hole is communicated with the hole passage in the third tube portion.

8. The gas-liquid separator according to claim 5, wherein the gas-liquid separator comprises a third pipe portion, one end of the third pipe portion is fixed to the first head, the other end of the third pipe portion is fixed to the second head, a hole is formed in the third pipe portion, the first hole is communicated with the hole in the third pipe portion, and the second hole is communicated with the hole in the third pipe portion.

9. The gas-liquid separator of any one of claims 6-8, comprising an inner tube and an outer tube, wherein at least a portion of the inner tube extends into the outer tube, an end of the outer tube is secured to the inner tube, the inner tube extends at least partially into the third bore, an outer wall of the inner tube is secured to and sealed against an inner wall corresponding to the third aperture, an outer sidewall of the inner tube forms a first flow path with an inner sidewall of the outer tube, a second flow path is formed in the inner tube, the third aperture is in communication with the second flow path, the outer tube comprises at least one flow aperture extending through a sidewall of the outer tube, and the flow aperture is relatively close to an end of the outer tube that is sealed by the inner tube.

10. The gas-liquid separator of claim 9, further comprising a filter, the other end of the outer tube fixedly attached to the filter, the end of the outer tube nearest the bottom of the second housing defined as a first end, the end of the inner tube nearest the bottom of the second housing defined as a second end, the first end being closer to the bottom of the second housing than the second end.