CN218955237U

CN218955237U - Oil separator and air conditioning unit

Info

Publication number: CN218955237U
Application number: CN202223431831.3U
Authority: CN
Inventors: 黄洪乐; 王朴忠; 王玉; 闫国杰; 杨佳伟
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-02
Anticipated expiration: 2032-12-21

Abstract

The utility model provides an oil separator and an air conditioning unit. The oil separator includes a housing; the inner shell is arranged in the shell, and a silencing cavity is formed between the inner shell and the shell; and the inner shell is provided with a silencing hole, and the silencing hole is communicated with the silencing cavity. According to the oil separator and the air conditioning unit, the inner shell is arranged in the shell, the silencing cavity is formed, gas enters or leaves the silencing cavity through the silencing hole in the inner shell, the silencing effect is achieved, meanwhile, air flow entering the inner shell firstly reflects and then enters the inner shell to be opposite to air flow entering the inner shell, energy consumption is formed, noise is further suppressed, noise decibels generated when the whole air conditioner operates are greatly reduced, and the noise reduction and silencing effects of engineering are achieved. The structure has the characteristics of high integration and small occupied area, and the functions of light weight and small engineering area occupied by the whole equipment are realized by utilizing the arrangement and matching of all components of the whole equipment, so that the production cost and the use input cost are reduced.

Description

Oil separator and air conditioning unit

Technical Field

The utility model relates to the technical field of oil content, in particular to an oil separator and an air conditioning unit.

Background

The large screw type heating and ventilation equipment has the characteristics that a compressor is in a double-screw male-female rotor meshing compression mode, compressed high-pressure medium is conveyed periodically and intermittently, and refrigerating oil is needed by an internal fluorine path system so as to ensure cooling, lubrication and sealing of the rotors when screws are meshed, and meanwhile, clean refrigerating oil without excessive particle impurities is also determined by linear compression. So in order to obtain reliable and clean feeding of the refrigerating oil in the whole refrigerant circulation system, the screw system is provided with an oil separator.

The problem of the existing screw compressor in engineering operation is that the noise of the screw compressor is the noise of the whole screw compressor, wherein the air flow pulse vibration conducted in oil is relatively large, so that the noise of the oil is large, and the user experience is seriously affected.

Disclosure of Invention

In order to solve the technical problem that the noise of the oil separator in the prior art is overlarge, the oil separator and the air conditioning unit with the noise reduction function are provided, wherein a noise reduction cavity is formed in the shell.

An oil separator comprising:

a housing;

the inner shell is arranged in the shell, and a silencing cavity is formed between the inner shell and the shell;

the inner shell is provided with a silencing hole which is communicated with the silencing cavity;

and one end of the air inlet pipe is communicated with the outside of the shell, and the other end of the air inlet pipe is communicated with the inside of the inner shell.

The oil separator further includes:

the separation barrel, the separation barrel set up in the inner shell, just the separation barrel with form the flow chamber between the inner shell, the intake pipe with the flow chamber intercommunication, be formed with the opening on the lower terminal surface of flow chamber.

The air inlet direction of the air inlet pipe is parallel to the tangential direction of the connection position of the flow cavity and the air inlet pipe.

The shell is provided with an upper cover plate, the inner shell and the separation cylinder body are both arranged on the upper cover plate, an exhaust port is arranged on the upper cover plate, and the exhaust port is communicated with the separation cylinder body.

The oil separator also comprises a filter screen structure, and the filter screen structure is arranged at the exhaust port.

The filter screen structure comprises a filter tube, the filter tube is arranged in the separating cylinder, one end of the filter tube is communicated with the exhaust port, a sealing plate is arranged at the other end of the filter tube, a filter hole is formed in the side wall of the filter tube, and the filter tube is internally communicated with the separating cylinder through the filter hole.

The length of the filter pipe is smaller than the length of the separation cylinder along the direction away from the upper cover plate; and/or the length of the separation cylinder is smaller than the length of the inner shell.

The oil separator also comprises a separation plate, wherein the separation plate is arranged in the silencing cavity, the separation plate divides the silencing cavity into at least two silencing areas, and each silencing area is communicated with the inner part of the inner shell through the silencing hole.

The shell is further provided with a lower cover plate, the inner shell is arranged on the lower cover plate, the inner shell and the lower cover plate jointly enclose an oil storage cavity, and the oil storage cavity is communicated with the flow cavity.

The oil separator also includes an oil baffle positioned between the oil storage cavity and the flow cavity.

The oil separator further comprises an oil filter, the oil filter is arranged on the shell, an inlet of the oil filter is communicated with the oil storage cavity, and an outlet of the oil filter is communicated with the outside of the shell.

The shell comprises an outer cylinder body and a middle cylinder body, wherein the middle cylinder body is arranged in the outer cylinder body, a filling cavity is formed between the middle cylinder body and the outer cylinder body, sound absorbing materials are filled in the filling cavity, the inner shell is arranged in the middle cylinder body, and a silencing cavity is formed between the inner shell and the middle cylinder body.

The sound absorbing material comprises one or more of polyurethane, sponge, cotton and felt.

An air conditioning unit comprises the oil separator.

According to the oil separator and the air conditioning unit, the inner shell is arranged in the shell, the silencing cavity is formed, gas enters or leaves the silencing cavity through the silencing hole in the inner shell, the silencing effect is achieved, meanwhile, air flow entering the inner shell firstly reflects and then enters the inner shell to be opposite to air flow entering the inner shell, energy consumption is formed, noise is further suppressed, noise decibels generated when the whole air conditioner operates are greatly reduced, and the noise reduction and silencing effects of engineering are achieved. The structure has the characteristics of high integration and small occupied area, and the functions of light weight and small engineering area occupied by the whole equipment are realized by utilizing the arrangement and matching of all components of the whole equipment, so that the production cost and the use input cost are reduced.

Drawings

Fig. 1 is a cross-sectional view of an oil separator provided by an embodiment of the present utility model;

FIG. 2 is another cross-sectional view of an oil separator provided by an embodiment of the present utility model;

in the figure:

1. an inner case; 101. a sound deadening chamber; 11. a sound deadening hole; 2. an air inlet pipe; 3. separating the cylinder; 102. a flow chamber; 4. an upper cover plate; 103. an exhaust port; 5. a filter screen structure; 6. a partition plate; 7. a lower cover plate; 104. an oil storage chamber; 8. an oil baffle plate; 9. an oil filter; 105. an outer cylinder; 106. a middle cylinder; 107. filling the cavity.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

An oil separator as shown in fig. 1 and 2, comprising: a housing; an inner case 1, wherein the inner case 1 is disposed in the case, and a sound deadening chamber 101 is formed between the inner case 1 and the case; a silencing hole 11 is formed in the inner shell 1, and the silencing hole 11 is communicated with the silencing cavity 101; and one end of the air inlet pipe 2 is communicated with the outside of the shell, and the other end of the air inlet pipe 2 is communicated with the inside of the inner shell 1. The inner shell 1 is arranged in the shell, the silencing cavity 101 is formed, gas enters or leaves the silencing cavity 101 through the silencing hole 11 in the inner shell 1, the silencing effect is achieved, meanwhile, air flow entering the inner shell 1 firstly reflects and then enters the air flow of the inner shell 1 to be opposite to each other, energy consumption is formed, noise is further suppressed, noise decibels generated during operation of the whole machine are greatly reduced, and the noise reduction and silencing effect of engineering is achieved. The structure has the characteristics of high integration and small occupied area, and the functions of light weight and small engineering area occupied by the whole equipment are realized by utilizing the arrangement and matching of all components of the whole equipment, so that the production cost and the use input cost are reduced.

The oil separator further includes: the separation barrel 3, separation barrel 3 set up in inner shell 1, just separation barrel 3 with form flow chamber 102 between inner shell 1, intake pipe 2 with flow chamber 102 intercommunication, be formed with the opening on the lower terminal surface of flow chamber 102. After flowing into the inner shell 1, the lubricating oil in the fluid can be separated out under the restriction of the structure in the flow cavity 102, and the separated oil can flow downwards under the action of gravity and is discharged out of the flow cavity 102 through the opening, so that the oil-gas separation is realized.

The air intake direction of the air intake pipe 2 is parallel to the tangential direction of the connection position of the flow chamber 102 and the air intake pipe 2. Fluid enters the flow chamber 102 along the tangential direction of the flow chamber 102, thereby increasing the spiral flow effect of the fluid and increasing the oil-gas separation effect.

The shell is provided with an upper cover plate 4, the inner shell 1 and the separation cylinder body 3 are both arranged on the upper cover plate 4, an exhaust port 103 is arranged on the upper cover plate 4, and the exhaust port 103 is communicated with the separation cylinder body 3. The fluid flowing in the flow chamber 102 is subjected to oil-gas separation, the separated lubricating oil flows downwards under the action of gravity, the separated refrigerant flows upwards, and only flows into the separation cylinder 3 under the limitation of the structure, and finally the exhaust port 103 is discharged.

The part of the separation cylinder 3, which is far away from the upper cover plate 4, is connected with the inner shell 1 through a reinforcing plate, so that the reliability of the fixation of the separation cylinder 3 is ensured.

In order to further enhance the separation effect, the oil separator further comprises a filter screen structure 5, and the filter screen structure 5 is arranged at the air outlet 103. The filter screen structure 5 is utilized to filter the refrigerant to be discharged again, so that lubricating oil possibly existing is filtered again, and the cleanliness of the refrigerant is ensured.

Specifically, filter screen structure 5 includes the filter tube, the filter tube set up in the separation barrel 3, just the one end of filter tube with gas vent 103 intercommunication, the other end is provided with the shrouding, be provided with the filtration pore on the lateral wall of filter tube, the inside of filter tube passes through the filtration pore with the inside intercommunication of separation barrel 3. Wherein the shrouding is towards the opening part of separation barrel 3 for the refrigerant after the separation can only enter into the filter tube inside through the filtration pore on the filter tube lateral wall, and this in-process needs the refrigerant to bend and flow, thereby improves the filter effect of filter tube.

The length of the filter tube is smaller than the length of the separation cylinder 3 in a direction away from the upper cover plate 4. The air flow in the flow cavity 102 can flow through the separation cylinder 3, then bend upwards, finally reach the filter pipe, and the oil-gas separation effect is improved by using the bending flow.

The length of the separation cylinder 3 is smaller than the length of the inner housing 1. The volume of the flow chamber 102 is increased as much as possible, thereby increasing the oil and gas separation effect.

The oil separator further comprises a separation plate 6, the separation plate 6 is arranged in the silencing cavity 101, the separation plate 6 divides the silencing cavity 101 into at least two silencing areas, and each silencing area is communicated with the inside of the inner shell 1 through a silencing hole 11. Through forming a plurality of amortization regions, increase noise reduction effect, the volume of amortization region is different simultaneously, can eliminate the noise of different frequencies, further improves noise reduction effect.

The shell is further provided with a lower cover plate 7, the inner shell 1 is arranged on the lower cover plate 7, the inner shell 1 and the lower cover plate 7 jointly enclose an oil storage cavity 104, and the oil storage cavity 104 is communicated with the flow cavity 102. The lubricating oil separated in the flow chamber 102 can drop into the oil storage chamber 104 under the action of gravity, so that the lubricating oil is collected.

The oil separator further comprises an oil baffle 8, the oil baffle 8 being located between the oil reservoir 104 and the flow chamber 102. The oil baffle 8 is utilized to prevent the lubricating oil from dripping on the oil surface of the oil storage cavity 104 to form sputtering, so that the liquid level is unstable and the detection of the liquid level switch is affected.

The oil separator further includes an oil filter 9, the oil filter 9 is disposed on the housing, an inlet of the oil filter 9 communicates with the oil storage chamber 104, and an outlet of the oil filter 9 communicates with an outside of the housing. The oil of oil baffle 8 gathers to oil storage chamber 104 to submerge oil filter 9, oil filter 9 cylinder outer wall is filter screen, carries out the screen cloth and filters, and oil passes through the oil return mouth and discharges, cools down lubrication and seal for the compressor again, has formed the circulation of oil like this, and impurity then remains in the bottom of oil storage chamber 104, has avoided the impurity to get into compressor rotor meshing department like this, avoids damaging the compressor.

The shell comprises an outer barrel 105 and a middle barrel 106, wherein the middle barrel 106 is arranged in the outer barrel 105, a filling cavity 107 is formed between the middle barrel 106 and the outer barrel 105, sound absorbing materials are filled in the filling cavity 107, the inner shell 1 is arranged in the middle barrel 106, and a silencing cavity 101 is formed between the inner shell 1 and the middle barrel 106. By filling the sound absorbing material in the filling cavity 107, the impact of the sound absorbing cavity 101 and the noise propagation of the residual air flow are isolated, and the noise reduction effect is improved.

An air conditioning unit comprises the oil separator.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. An oil separator, characterized in that: comprising the following steps:

a housing;

an inner shell (1), wherein the inner shell (1) is arranged in the shell, and a silencing cavity (101) is formed between the inner shell (1) and the shell;

a silencing hole (11) is formed in the inner shell (1), and the silencing hole (11) is communicated with the silencing cavity (101);

and one end of the air inlet pipe (2) is communicated with the outside of the shell, and the other end of the air inlet pipe (2) is communicated with the inside of the inner shell (1).

2. An oil separator as defined in claim 1 wherein: the oil separator further includes:

the separating cylinder body (3), separating cylinder body (3) set up in inner shell (1), just separating cylinder body (3) with form flow chamber (102) between inner shell (1), intake pipe (2) with flow chamber (102) intercommunication, be formed with the opening on the lower terminal surface of flow chamber (102).

3. An oil separator as defined in claim 2 wherein: the air inlet direction of the air inlet pipe (2) is parallel to the tangential direction of the connection position of the flow cavity (102) and the air inlet pipe (2).

4. An oil separator as defined in claim 2 wherein: the shell is provided with an upper cover plate (4), the inner shell (1) and the separation cylinder body (3) are both arranged on the upper cover plate (4), an exhaust port (103) is arranged on the upper cover plate (4), and the exhaust port (103) is communicated with the separation cylinder body (3).

5. An oil separator as defined in claim 4 wherein: the oil separator further comprises a filter screen structure (5), and the filter screen structure (5) is arranged at the exhaust port (103).

6. An oil separator as defined in claim 5 wherein: the filter screen structure (5) comprises a filter pipe, the filter pipe is arranged in the separation cylinder body (3), one end of the filter pipe is communicated with the exhaust port (103), a sealing plate is arranged at the other end of the filter pipe, a filter hole is formed in the side wall of the filter pipe, and the filter pipe is internally communicated with the separation cylinder body (3) through the filter hole.

7. An oil separator as defined in claim 6 wherein: the length of the filter tube is smaller than the length of the separation cylinder (3) along the direction away from the upper cover plate (4); and/or the length of the separation cylinder (3) is smaller than the length of the inner shell (1).

8. An oil separator as defined in claim 1 wherein: the oil separator further comprises a separation plate (6), the separation plate (6) is arranged in the silencing cavity (101), the separation plate (6) separates the silencing cavity (101) into at least two silencing areas, and each silencing area is communicated with the inside of the inner shell (1) through the silencing hole (11).

9. An oil separator as defined in claim 4 wherein: the shell is further provided with a lower cover plate (7), the inner shell (1) is arranged on the lower cover plate (7), the inner shell (1) and the lower cover plate (7) jointly enclose an oil storage cavity (104), and the oil storage cavity (104) is communicated with the flow cavity (102).

10. An oil separator as defined in claim 9 wherein: the oil separator also comprises an oil baffle (8), and the oil baffle (8) is positioned between the oil storage cavity (104) and the flow cavity (102).

11. An oil separator as defined in claim 9 wherein: the oil separator further comprises an oil filter (9), the oil filter (9) is arranged on the shell, an inlet of the oil filter (9) is communicated with the oil storage cavity (104), and an outlet of the oil filter (9) is communicated with the outside of the shell.

12. An oil separator as defined in claim 1 wherein: the shell comprises an outer barrel body (105) and an intermediate barrel body (106), the intermediate barrel body (106) is arranged in the outer barrel body (105), a filling cavity (107) is formed between the intermediate barrel body (106) and the outer barrel body (105), sound absorbing materials are filled in the filling cavity (107), the inner shell (1) is arranged in the intermediate barrel body (106), and the silencing cavity (101) is formed between the inner shell (1) and the intermediate barrel body (106).

13. An oil separator as defined in claim 12 wherein: the sound absorbing material comprises one or more of polyurethane, sponge, cotton and felt.

14. An air conditioning unit, characterized in that: comprising an oil separator as claimed in any one of claims 1 to 13.