CN216011353U

CN216011353U - Heat exchange gas-liquid separator

Info

Publication number: CN216011353U
Application number: CN202122134422.6U
Authority: CN
Inventors: 朱晓军; 戴鹏飞; 蒋建良; 张建华
Original assignee: Changzhou Tenglong Auto Parts Co ltd
Current assignee: Changzhou Tenglong Auto Parts Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-03-11
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to the technical field of air conditioning systems, in particular to a heat exchange gas-liquid separator, which comprises a cover body, a shell, a liquid dispersion cover, a built-in high pressure pipeline and a built-in low pressure pipeline, wherein the cover body covers the opening of the shell and forms a separation cavity inside, by the optimized internal gas circulation path, the deposition effect of the refrigerant liquid drops is improved, the outflow of the refrigerant liquid drops is reduced, the vaporization of the refrigerant liquid drops in the separation cavity is accelerated by the heat conduction heating of the high-temperature refrigerant in the built-in high-pressure pipeline, meanwhile, due to the optimized pipeline design, on one hand, the temperature of the built-in low-pressure pipeline through which refrigerant gas is discharged is improved to the maximum extent, on the other hand, the design and production of products with different specifications are facilitated, the production cost is reduced, the product competitiveness is improved, and the integral welding type structure is not only suitable for conventional refrigerants, but also can meet the application requirements of R134a type refrigerants.

Description

Heat exchange gas-liquid separator

Technical Field

The utility model belongs to the technical field of air conditioning system technique and specifically relates to a heat exchange vapour and liquid separator.

Background

The gas-liquid separator is one of the important components of air conditioning system and has the main function of storing partial refrigerant in the system and preventing the compressor oil from being diluted due to liquid impact of the compressor and excessive refrigerant. However, the existing gas-liquid separator cannot fully gasify refrigerant liquid drops due to structural limitation, and the refrigerant liquid drops or fog drops are easy to mix with gasified refrigerant and enter a compressor, so that the existing gas-liquid separator cannot perform a good separation function. Meanwhile, R134a is used as a more environment-friendly refrigerant, and because the R134a can dissolve existing sealing materials and is easily affected by moisture, the sealing is failed, the refrigerant leaks, or internal devices are corroded, a new structure which is suitable for the high-performance R134a heat exchange gas-liquid separator is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior problem, the utility model provides a heat exchange gas-liquid separator.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a heat-exchange vapour and liquid separator, includes lid, casing, scattered liquid lid, built-in high-pressure line way and built-in low-pressure line way, the lid closes the opening at the casing, and inside formation disengagement chamber, be equipped with low pressure import, low pressure export and two high pressure interfaces on the lid, built-in low-pressure line way just is equipped with nozzle stub and long tube for the U-shaped, the long tube is installed in the low pressure export below, scattered liquid lid is the decurrent cap form of opening, and adorns on the long tube through the low pressure through-hole cover, its circumference with be equipped with the interval between the shells inner wall, the drill way of nozzle stub is located scattered liquid lid below, the both ends mouth of pipe of built-in high-pressure line way is fixed respectively in high pressure interface below, and its below pipeline stretches into the disengagement chamber bottom.

Specifically, the low-pressure low-temperature gas-liquid two-phase fluid enters the separator from the low-pressure inlet, enters the lower part of the separation cavity through the periphery of the liquid dispersion cover, the liquid phase is condensed on the liquid dispersion cover or the inner wall of the shell, the separated gasified refrigerant enters from the short pipe of the built-in low-pressure pipeline and flows out from the low-pressure outlet, meanwhile, the built-in high-pressure pipeline flows through the high-pressure high-temperature refrigerant, the heat conduction heating is carried out on the inside of the separator, the temperature inside the separator is improved, particularly the temperature of the built-in low-pressure pipeline, the gasification speed of the refrigerant is greatly accelerated, and the refrigerant flowing out from the low-pressure outlet is gasified more fully.

According to the utility model discloses a further embodiment, further include, built-in high-pressure line includes two sections U-shaped pipes to form an organic whole through connecting portion, the U-shaped pipe is located built-in low-pressure line both sides, and passes the scattered liquid lid. The length of a built-in high-pressure pipeline in the separation cavity is increased through a special structural design, meanwhile, the space is reasonably utilized, the built-in high-pressure pipeline surrounds the periphery of the built-in low-pressure pipeline, the built-in low-pressure pipeline is best in heating effect by the built-in high-pressure pipeline, a small amount of refrigerant fog drops entering the built-in low-pressure pipeline are gasified, and the gas-liquid separation function is achieved to the maximum extent. Meanwhile, the standardization of parts of the gas-liquid separators with different specifications is facilitated, the number of special manufacturing equipment and special tools is reduced only by increasing the lengths of the built-in low-pressure pipeline, the built-in high-pressure pipeline and the straight section of the shell, the adjusting time of production switching of products with different specifications is shortened, the manufacturing cost of the gas-liquid separators is greatly reduced, and the market competitiveness of the products is improved.

According to the utility model discloses a further embodiment, further include, built-in low pressure pipeline's bottom is equipped with the hole of returning the liquid, and installs the filter, the filter is connected with the hole of returning the liquid.

According to another embodiment of the present invention, further comprising, a drying bag is fixed in the separation chamber. Through setting up built-in dry package, get rid of a small amount of moisture in the refrigerant, can reduce the desicator setting on the external pipeline, reduce air conditioning system cost.

According to the utility model discloses a further embodiment, further include, dry package ligature is fixed on built-in high-pressure line or built-in low-pressure line.

According to the utility model discloses a further embodiment, further include, long pipe and low pressure export welded fastening are connected, the both ends mouth of pipe and the high pressure interface welded fastening of built-in high pressure pipeline are connected, the lid also is welded fastening with the casing and is connected. Through the welding seam connection sealing, the gas-liquid separator can bear stronger pressure, and meanwhile, the gas-liquid separator is suitable for R134a type refrigerants, and the service life of the gas-liquid separator is prolonged.

The beneficial effects of the utility model are that, through the inside gas circulation route of optimizing, improve refrigerant liquid drop deposit effect, reduce the outflow of refrigerant liquid drop, heat-conduction heating through built-in high-pressure line interior high temperature refrigerant, accelerate the gasification of separation intracavity refrigerant liquid drop, the pipeline design of optimizing simultaneously, on the one hand furthest improves the temperature of the built-in low pressure pipeline that refrigerant gas outgoing flowed through, on the other hand makes things convenient for the design of different specification products, production, and the reduction in production cost, improve the product competitiveness, whole welded structure not only is suitable for conventional refrigerant, can also satisfy the application demand of R134a type refrigerant.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of the present invention with the housing removed;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a cross-sectional view taken at D-D of FIG. 2;

FIG. 4 is a cross-sectional view taken at E-E of FIG. 2;

FIG. 5 is a schematic top view of the dispensing cap;

FIG. 6 is a schematic diagram of the construction of the built-in high pressure line;

FIG. 7 is a schematic view of a desiccant packet;

fig. 8 is a schematic view of the internal gas flow during use of the present invention.

In the figure, a cover body 1, a low-pressure outlet 11, a low-pressure inlet 12, a high-pressure connector 13, a shell 2, a separation cavity 21, a liquid dispersion cover 3, a low-pressure through hole 31, a high-pressure through hole 32, a built-in high-pressure pipeline 4, a pipe opening 41, a connecting part 42, a U-shaped pipe 43, a drying bag 5, a built-in low-pressure pipeline 6, a short pipe 61, a long pipe 62, a liquid return hole 63 and a filter 7.

Detailed Description

As shown in fig. 1-7, which are schematic structural views of the present invention, a heat exchange gas-liquid separator comprises a cover body 1, a housing 2, a liquid dispersing cover 3, a built-in high pressure pipeline 4 and a built-in low pressure pipeline 6, wherein the cover body 1 covers an opening of the housing 2, a separation cavity 21 is formed inside, a low-pressure inlet 12, a low-pressure outlet 11 and two high-pressure connectors 13 are arranged on the cover body 1, the built-in low-pressure pipeline 6 is U-shaped and is provided with a short pipe 61 and a long pipe 62, the long pipe 62 is arranged below the low-pressure outlet 11, the liquid dispersion cover 3 is in a cover shape with a downward opening and is sleeved on the long pipe 62 through the low-pressure through hole 31, a distance is arranged between the circumference of the short pipe 61 and the inner wall of the shell 2, the orifice of the short pipe 61 is positioned below the liquid dispersion cover 3, the two end pipe orifices 41 of the built-in high-pressure pipeline 4 are respectively fixed below the high-pressure connector 13, and the lower pipeline thereof extends into the bottom of the separation cavity 21.

The nozzle of the short pipe 61 is positioned in the concave cavity of the liquid dispersion cover 3, but does not abut against the inner bottom surface of the liquid dispersion cover 3.

The liquid dispersing cover 3 is provided with a low-pressure through hole 31 and a high-pressure through hole 32 which respectively penetrate through the built-in high-pressure pipeline 4 and the built-in low-pressure pipeline 6, and the built-in high-pressure pipeline 4 and the built-in low-pressure pipeline 6 are in gapless fit with the liquid dispersing cover 3.

The cover body 1, the shell body 2, the liquid dispersing cover 3, the built-in high-pressure pipeline 4 and the built-in low-pressure pipeline 6 can be made of aluminum alloy materials.

The lower pipeline of the built-in high-pressure pipeline 4 can be closely arranged in parallel with the built-in low-pressure pipeline 6, and can also form a spiral shape to surround the outer side of the built-in low-pressure pipeline 6.

Preferably, the built-in high-pressure pipeline 4 comprises two U-shaped pipes 43 and is formed integrally through a connecting part 42, and the U-shaped pipes 43 are positioned at two sides of the built-in low-pressure pipeline 6 and penetrate through the liquid dispersion cover 3.

Preferably, the bottom of the built-in low-pressure pipeline 6 is provided with a liquid return hole 63, and a filter 7 is installed, wherein the filter 7 is connected with the liquid return hole 63. The filter 7 is a PA6+ PA66 filter.

Preferably, a drying bag 5 is fixed in the separation chamber 21. The desiccant packet 5 houses XH-9 desiccant or equivalent material.

Preferably, the drying bag 5 is bound and fixed on the built-in high-pressure pipeline 4 or the built-in low-pressure pipeline 6.

Preferably, the long pipe 62 is fixedly connected with the low pressure outlet 11 by welding, pipe orifices 41 at two ends of the built-in high pressure pipeline 4 are fixedly connected with the high pressure interface 13 by welding, and the cover body 1 is fixedly connected with the shell 2 by welding.

As shown in fig. 8, the inside gas flow is schematically shown, and the direction of the arrow indicates the gas flow direction inside the gas-liquid separator and inside the pipe.

The utility model discloses can be used for R134a heat pump air conditioning system specially, can bear the high-pressure fluid process more than R134a heat pump air conditioning system 8.9MPa, can not produce and leak and the risk of breaing. The refrigerant can also be used for the traditional refrigerant and also has the function of gas-liquid separation.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A heat exchange gas-liquid separator is characterized by comprising a cover body (1), a shell (2), a liquid dispersion cover (3), a built-in high-pressure pipeline (4) and a built-in low-pressure pipeline (6), wherein the cover body (1) covers an opening of the shell (2), a separation cavity (21) is formed inside the cover body, a low-pressure inlet (12), a low-pressure outlet (11) and two high-pressure interfaces (13) are arranged on the cover body (1), the built-in low-pressure pipeline (6) is U-shaped and provided with a short pipe (61) and a long pipe (62), the long pipe (62) is arranged below the low-pressure outlet (11), the liquid dispersion cover (3) is in a cover shape with a downward opening and is sleeved on the long pipe (62) through a low-pressure through hole (31), the circumference of the liquid dispersion cover and the inner wall of the shell (2) are provided with intervals, an orifice of the short pipe (61) is arranged below the liquid dispersion cover (3), two end orifices (41) of the built-in high-pressure pipeline (4) are respectively fixed below the high-pressure interfaces (13), and the lower pipeline thereof extends into the bottom of the separation cavity (21).

2. The gas-liquid separator according to claim 1, wherein said internal high-pressure pipe (4) comprises two U-shaped pipes (43) and is integrated by a connecting portion (42), said U-shaped pipes (43) being located on both sides of the internal low-pressure pipe (6) and passing through the liquid-dispersing cover (3).

3. The heat-exchange gas-liquid separator according to claim 1, wherein the bottom of the built-in low-pressure pipeline (6) is provided with a liquid return hole (63), and a filter (7) is installed, and the filter (7) is connected with the liquid return hole (63).

4. The gas-liquid separator according to claim 1, wherein a drying bag (5) is fixed in said separation chamber (21).

5. The heat exchange gas-liquid separator according to claim 4, wherein the drying bag (5) is bound and fixed on the built-in high-pressure pipeline (4) or the built-in low-pressure pipeline (6).

6. The gas-liquid separator according to claim 1, wherein the long pipe (62) is fixedly connected with the low-pressure outlet (11) by welding, the pipe orifices (41) at two ends of the built-in high-pressure pipeline (4) are fixedly connected with the high-pressure connector (13) by welding, and the cover body (1) is fixedly connected with the shell (2) by welding.