CN211601221U - Gas-liquid separator and compression refrigeration system - Google Patents

Abstract

The utility model discloses a vapour and liquid separator and compression refrigerating system who claims, vapour and liquid separator includes separation cavity, intake pipe and outlet duct communicate respectively to inside the separation cavity; the part of the air outlet pipe, which is positioned in the separation cavity, is in a U shape with an upward opening; an oil return hole is formed in the bottom of the air outlet pipe, a first filter screen is arranged at the position of the oil return hole, and the first filter screen is close to the inlet side of the air outlet pipe relative to the oil return hole; the air outlet pipe is further provided with a filter, the filter is close to the outlet side of the air outlet pipe relative to the oil return hole, and the aperture of the filtering hole in the filter is smaller than that of the filtering hole in the first filter screen. The utility model discloses carry out the secondary filter with the filter to the outlet duct for the separation is outwards discharged by the outlet duct at the impurity granule of first filter screen, with this filter capacity that increases this vapour and liquid separator.

Description

Gas-liquid separator and compression refrigeration system

Technical Field

The utility model belongs to the technical field of refrigeration technology is relevant, especially relate to a vapour and liquid separator and compression refrigerating system.

Background

The gas-liquid separator is usually installed at the inlet and outlet of a gas compressor for gas-liquid separation, when the gas-liquid separator works, a saturated gas-liquid mixed refrigerant enters the gas-liquid separator through an air inlet pipe, liquid drops in a gas phase sink and are separated from gas in the steering process of a main fluid in a container suddenly expanded by utilizing different gas-liquid specific weights after the flow rate is reduced, or liquid drops in the gas phase are thrown to the wall of the container by high-speed airflow of an air inlet by utilizing a cyclone separator and lose kinetic energy after collision to be separated from the steering gas, the gas is collected by an inlet of an upper air outlet pipe, and the liquid phase is collected by the lower part of the container, so that the purpose of gas-.

At present, the existing gas-liquid separator is generally provided with a filter screen for filtering impurities and preventing large-particle impurities from blocking an oil return hole only at the oil return hole in a separation cavity; however, when the foreign particles are smaller than the diameter of the individual holes of the screen, they can still be carried through the screen into the compressor and the system circuit, with a certain risk.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a gas-liquid separator and a compression refrigeration system for solving the technical problems in the prior art.

The gas-liquid separator comprises a separation cavity, a gas inlet pipe and a gas outlet pipe, wherein the gas inlet pipe and the gas outlet pipe are respectively communicated to the inside of the separation cavity; the part of the air outlet pipe, which is positioned in the separation cavity, is in a U shape with an upward opening; an oil return hole is formed in the bottom of the air outlet pipe, a first filter screen is arranged at the position of the oil return hole, and the first filter screen is close to the inlet side of the air outlet pipe relative to the oil return hole; the air outlet pipe is further provided with a filter, the filter is close to the outlet side of the air outlet pipe relative to the oil return hole, and the aperture of the filtering hole in the filter is smaller than that of the filtering hole in the first filter screen.

As the preferred scheme of the utility model, the filter set up in the vertical part of outlet duct.

As the utility model discloses a preferred scheme, the filter includes the connecting tube box, and locates filter body in the connecting tube box, filter body include the rigid coupling in the fixed chamber shell of connecting tube box, and locate second filter screen in the fixed chamber shell.

As the preferred scheme of the utility model, the outlet duct is the sectional type structure, the both ends of connecting tube sleeve are fixed respectively two sections between the outlet duct.

As the utility model discloses an optimal scheme, be equipped with spacing protruding circle on the pipe wall of connecting tube sleeve, be equipped with on the fixed chamber shell corresponding to the spacing concave part of spacing protruding circle, fixed chamber shell passes through spacing protruding circle with cooperation between the spacing concave part is fixed on the connecting tube sleeve.

As the preferred scheme of the utility model, the second filter screen sets up fixedly fixed chamber shell is kept away from on a side end of spacing convex ring.

As a preferable aspect of the present invention, the filter is a copper filter.

As the utility model discloses a preferred scheme, the separation cavity include the barrel, and connect respectively in the upper end cover and the lower end cover at barrel both ends, the intake pipe with the outlet duct connect in the upper end cover.

As the preferred scheme of the utility model, vapour and liquid separator still includes mounting panel and support, the mounting panel is fixed in the lower extreme cover, the support is fixed in the barrel.

The utility model discloses still ask protection compression refrigerating system, including vapour and liquid separator, and with vapour and liquid separator complex compressor, vapour and liquid separator establishes to the aforesaid arbitrary vapour and liquid separator.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model provides a vapour and liquid separator and compression refrigerating system carries out the secondary with the filter to the outlet duct and filters for the separation is outwards discharged by the outlet duct through the foreign particle of first filter screen, with this filter capacity that increases this vapour and liquid separator, when making this vapour and liquid separator be applied to compression refrigerating system and go up the use, can prevent effectively that impurity from bringing into in the compressor that is connected with this vapour and liquid separator, and then play the guard action to compressor among the compression refrigerating system.

Drawings

Fig. 1 is a partial sectional view of a gas-liquid separator according to an embodiment of the present invention.

Fig. 2 is a sectional view of a filter in the gas-liquid separator of fig. 1.

10, separating the cavity; 11. a barrel; 12. an upper end cover; 13. a lower end cover; 14. mounting a plate; 15. a support; 20. an air inlet pipe; 30. an air outlet pipe; 40. a filter; 41. a connecting pipe sleeve; 411. a limit convex ring; 42. a filter body; 421. a fixed cavity housing; 422. and a second filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The utility model discloses a compression refrigerating system who claims, including vapour and liquid separator, and with gas-liquid separation chamber complex compressor, wherein vapour and liquid separator locates the import of compressor to the effect of protection is played in the work to the compressor.

Referring to fig. 1, a gas-liquid separator according to an embodiment of the present invention includes a separation chamber 10, an inlet pipe 20 and an outlet pipe 30, wherein the inlet pipe 20 and the outlet pipe 30 are respectively communicated to the inside of the separation chamber 10.

The part of the air outlet pipe 30 positioned in the separation chamber 10 is in a U shape with an upward opening; an oil return hole (not shown) is formed in the bottom of the air outlet pipe 30, and a first filter screen (not shown) is arranged at the position of the oil return hole, wherein the first filter screen is close to the inlet side of the air outlet pipe 30 relative to the oil return hole. It should be noted that an inlet (not shown) of the gas outlet pipe 30 is disposed at the top of the separation chamber 10, the separated gaseous refrigerant is guided into the gas outlet pipe 30 through the inlet of the gas outlet pipe 30, the oil return hole is disposed at the bottom of the gas outlet pipe 30, so that the lubricant oil deposited at the bottom of the separation chamber 10 is guided into the gas outlet pipe 30 through the oil return hole, and the first filter screen is disposed at the oil return hole, so as to filter the impurity particles mixed in the gas-liquid mixed refrigerant and the lubricant oil, and prevent the impurity particles together with the lubricant oil and the gaseous refrigerant from being guided into the compressor.

In this embodiment, the outlet pipe 30 is further provided with a filter 40, the filter 40 is close to the outlet side of the outlet pipe 30 relative to the oil return hole, and the pore diameter of the filtering pores on the filter 40 is smaller than that of the filtering pores on the first filter screen. The gas-liquid separator of the present embodiment can perform secondary filtration of the lubricant oil and the gaseous refrigerant introduced into the outlet pipe 30 by using the filter 40, and is used to prevent foreign particles passing through the first filter screen from being discharged from the outlet pipe 30, thereby increasing the filtering capability of the gas-liquid separator. It should be noted that the filter 40 is disposed on the air outlet pipe 30, and can block impurities with outer diameters smaller than the pore diameters of the filtering pores of the first filter screen and larger than the pore diameters of the filtering pores of the filter 40. Moreover, the number of the filters 40 is not limited to one, and those skilled in the art can set the number of the filters 40 to two or more according to the use requirement.

The filter 40 of the present embodiment is a copper filter.

Wherein the filter 40 of the present embodiment is provided to a vertical portion of the outlet duct 30. It should be noted that the installation position of the filter 40 on the outlet pipe 30 is not limited to that shown in the drawings, and a person skilled in the art may arrange the filter 40 at the position of the outlet on the outlet pipe 30 according to the use requirement.

Referring to fig. 2, the filter 40 of the present embodiment includes a connecting pipe sleeve 41, and a filter body 42 disposed in the connecting pipe sleeve 41, wherein the filter body 42 includes a fixed chamber shell 421 fixedly connected to the connecting pipe sleeve 41, and a second filter screen 422 disposed in the fixed chamber shell 421.

In the present embodiment, the outlet duct 30 has a sectional structure at a portion where the filter 40 is disposed, and both ends of the connection pipe sleeve 41 are respectively fixed between two sections of the outlet duct 30 by welding, and preferably, both ends of the connection pipe sleeve 41 are sleeved on both sectional ends of the outlet duct 30 on the outlet duct 30.

A limiting convex ring 411 is arranged on the pipe wall of the connecting pipe sleeve 41, a limiting concave part (not shown) corresponding to the limiting convex ring 411 is arranged on the fixed cavity shell 421, and the fixed cavity shell 421 is fixed on the connecting pipe sleeve 41 through the matching between the limiting convex ring 411 and the limiting concave part, so that the filter body 42 is assembled and fixed on the connecting pipe sleeve 41. And the second filter screen 422 is fixedly arranged on the end part of one side of the fixed cavity shell 421 far away from the limit convex ring 411. It should be noted that the connection manner between the fixed cavity shell 421 and the connection pipe sleeve 41 is not limited to that shown in the drawings, and a person skilled in the art can directly fix the fixed cavity shell 421 on the connection pipe sleeve 41 by welding according to the use requirement, or select a limit bump on the connection pipe sleeve 41 to implement the assembly connection between the connection pipe sleeve 41 and the fixed cavity shell 421.

It should be noted that the separation chamber 10 of the present embodiment includes a cylinder 11, and an upper end cap 12 and a lower end cap 13 respectively disposed at two sides of the cylinder 11, and the upper end cap 12, the cylinder 11, and the lower end cap 13 are sequentially connected and fixed in a welding manner, so as to facilitate the production and preparation of the whole separation chamber 10.

The gas-liquid separator further comprises an installation plate 14 and a support 15, wherein the installation plate 14 is fixed on the lower end cover 13 in a welding mode, and the support 15 is fixed on the barrel 11 in a welding mode, so that the gas-liquid separator is convenient to transport and install integrally.

To sum up, the utility model provides a vapour and liquid separator and compression refrigerating system carries out the secondary filter with the filter to the outlet duct for the separation is outwards discharged by the outlet duct through the foreign particle of first filter screen, with this filter capacity that increases this vapour and liquid separator, when making this vapour and liquid separator be applied to compression refrigerating system and go up the use, can prevent effectively that impurity from bringing into the compressor that is connected with this vapour and liquid separator in, and then play the guard action to compressor among the compression refrigerating system.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A gas-liquid separator comprises a separation cavity, a gas inlet pipe and a gas outlet pipe, wherein the gas inlet pipe and the gas outlet pipe are respectively communicated to the inside of the separation cavity; the part of the air outlet pipe, which is positioned in the separation cavity, is in a U shape with an upward opening; an oil return hole is formed in the bottom of the air outlet pipe, a first filter screen is arranged at the position of the oil return hole, and the first filter screen is close to the inlet side of the air outlet pipe relative to the oil return hole; the method is characterized in that: the air outlet pipe is further provided with a filter, the filter is close to the outlet side of the air outlet pipe relative to the oil return hole, and the aperture of the filtering hole in the filter is smaller than that of the filtering hole in the first filter screen.

2. The gas-liquid separator of claim 1, wherein: the filter is arranged in the vertical part of the air outlet pipe.

3. The gas-liquid separator of claim 1, wherein: the filter comprises a connecting pipe sleeve and a filter body arranged in the connecting pipe sleeve, wherein the filter body comprises a fixed cavity shell fixedly connected with the connecting pipe sleeve and a second filter screen arranged in the fixed cavity shell.

4. The gas-liquid separator of claim 3, wherein: the air outlet pipe is of a sectional type structure, and two ends of the connecting pipe sleeve are respectively fixed between the two sections of air outlet pipes.

5. The gas-liquid separator of claim 3, wherein: the pipe wall of the connecting pipe sleeve is provided with a limiting convex ring, the fixed cavity shell is provided with a limiting concave part corresponding to the limiting convex ring, and the fixed cavity shell is fixed on the connecting pipe sleeve through the matching between the limiting convex ring and the limiting concave part.

6. The gas-liquid separator of claim 5, wherein: the second filter screen is fixedly arranged on the end part, far away from the limiting convex ring, of one side of the fixed cavity shell.

7. The gas-liquid separator of claim 1, wherein: the filter is a copper filter.

8. The gas-liquid separator of claim 1, wherein: the separation cavity comprises a cylinder body, an upper end cover and a lower end cover, wherein the upper end cover and the lower end cover are respectively connected to the two ends of the cylinder body, and the air inlet pipe and the air outlet pipe are connected to the upper end cover.

9. The gas-liquid separator of claim 8, wherein: the gas-liquid separator further comprises a mounting plate and a support, the mounting plate is fixed on the lower end cover, and the support is fixed on the barrel.

10. A compression refrigeration system comprises a gas-liquid separator and a compressor matched with the gas-liquid separator, and is characterized in that: the gas-liquid separator is the gas-liquid separator according to any one of claims 1 to 9.

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