CN216922513U

CN216922513U - Compressor exhaust structure and compressor

Info

Publication number: CN216922513U
Application number: CN202123344890.2U
Authority: CN
Inventors: 陈辰
Original assignee: Shanghai Highly Electrical Appliances Co Ltd
Current assignee: Shanghai Highly Electrical Appliances Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-08
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to an exhaust structure of a compressor and the compressor, and relates to the field of compressors, wherein the compressor comprises an upper cylinder cover, a lower cylinder cover, a cylinder and a sliding sheet, the cylinder is hollow, and is matched with the upper cylinder cover and the lower cylinder cover to form a compression cavity of the compressor; the compressor exhaust structure comprises a Tesla valve cavity, and the Tesla valve cavity is arranged on the air cylinder or the lower cylinder cover; the Tesla valve cavity comprises a main flow cavity, a first shunt cavity, a second shunt cavity, an inlet and an outlet; the inlet and the outlet are respectively arranged at two ends of the main flow cavity, the inlet is positioned at the inner side of the cylinder and correspondingly communicated with the exhaust side of the compression cavity, and the outlet is positioned at the outer side of the cylinder; the first shunting cavity and the second shunting cavity are respectively arranged at two sides of the main flow cavity and respectively form a closed loop with the main flow cavity. The utility model can increase one path of exhaust channel, reduce exhaust loss at high rotating speed and avoid leakage.

Description

Compressor exhaust structure and compressor

Technical Field

The utility model relates to the field of compressors, in particular to a compressor exhaust structure and a compressor.

Background

The existing compressor adopts an exhaust seat ring and an exhaust valve plate as an exhaust structure, and has high reliability.

But it is a moving part with a risk of riveting poorly or in extreme cases breaking. And for the double-rotor compressor, the structure can not be arranged on the side of the cylinder close to the middle plate generally, and the cylinder can only be arranged on the upper cylinder cover and the lower cylinder cover, so that the exhaust resistance is increased under the conditions of high rotating speed and high flow rate.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: compared with the original scheme, the compressor exhaust structure and the compressor can increase one path of exhaust channel, reduce exhaust loss at high rotating speed and avoid leakage.

In order to achieve the aim, the technical scheme of the utility model provides a compressor exhaust structure; the compressor comprises an upper cylinder cover, a lower cylinder cover, a cylinder and a slip sheet, wherein the cylinder is hollow and is matched with the upper cylinder cover and the lower cylinder cover to form a compression cavity of the compressor; a sliding vane groove is formed in the cylinder, a sliding vane reciprocates in the cylinder, and the compression cavity is divided into a suction side and an exhaust side;

the compressor exhaust structure comprises a Tesla valve cavity, and the Tesla valve cavity is arranged on the air cylinder or the lower cylinder cover;

the Tesla valve cavity comprises a main flow cavity, a first branch flow cavity, a second branch flow cavity, an inlet and an outlet; the inlet and the outlet are respectively arranged at two ends of the main flow cavity, the inlet is positioned at the inner side of the cylinder and correspondingly communicated with the exhaust side of the compression cavity, and the outlet is positioned at the outer side of the cylinder; the first shunt cavity and the second shunt cavity are respectively arranged on two sides of the main flow cavity and respectively form a closed loop with the main flow cavity.

Preferably, the tesla valve cavity is arranged on the end face, facing the lower cylinder cover, of the cylinder.

Preferably, the tesla valve cavity is arranged on the end face, facing the cylinder, of the lower cylinder cover.

A kind of compressor exhaust structure; the compressor comprises an upper cylinder cover, a lower cylinder cover, a first cylinder, a second cylinder and a middle plate, wherein the middle plate is arranged between the first cylinder and the second cylinder, the first cylinder and the second cylinder are hollow, and are matched with the upper cylinder cover, the lower cylinder cover and the middle plate to respectively form a first compression cavity and a second compression cavity of the compressor;

the compressor exhaust structure comprises a Tesla valve cavity body which is arranged on the end face of the middle plate facing the first compression cavity and/or the second compression cavity respectively;

the Tesla valve cavity comprises a main flow cavity, a first branch flow cavity, a second branch flow cavity, an inlet and an outlet; the inlet and the outlet are respectively arranged at two ends of the main flow cavity, the inlet is positioned at the inner side of the cylinder and correspondingly communicated with the exhaust side of the first compression cavity or the second compression cavity, and the outlet is positioned at the outer side of the cylinder; the first shunt cavity and the second shunt cavity are respectively arranged on two sides of the main flow cavity and respectively form a closed loop with the main flow cavity.

Preferably, the first diversion cavity and the second diversion cavity are both provided with a linear cavity and a semicircular cavity which are connected with each other; the linear cavity is arranged at one side close to the outlet; the semicircular cavity is arranged at one side close to the inlet.

Preferably, the first branch chamber and the second branch chamber are provided in plurality and equal in number.

Preferably, the first branch chambers and the second branch chambers are alternately arranged along the main flow chamber in sequence.

A compressor is provided with the compressor exhaust structure.

In summary, the utility model has the following beneficial technical effects:

the design utilizes the Tesla valve principle, namely, exhaust from the inside of the cylinder to the outside is conducted in the positive direction, and leakage from the outside of the cylinder to the inside of the cylinder is stopped in the reverse direction.

Compared with the original scheme, the exhaust passage can be added, the exhaust loss under high rotating speed is reduced, and leakage cannot be caused.

The utility model has simple structure and no movable part, can effectively increase the exhaust flow area and avoid refrigerant leakage.

Drawings

Fig. 1 is a schematic structural view of a compressor provided with embodiment 1 of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a front view of a first cylinder and intermediate plate combination for showing the position of a Tesla valve cavity in example 1;

FIG. 4 is the schematic view of FIG. 3 after separation of the intermediate plate and the first cylinder;

FIG. 5 is a top view of the first cylinder and intermediate plate combination for showing the position of the Tesla valve cavity in example 1;

FIG. 6 is a schematic view of gas in a forward direction within a Tesla valve chamber;

FIG. 7 is a schematic representation of the gas in reverse phase cut-off within the Tesla valve cavity.

Reference numerals: 1. a Tesla valve cavity; 11. a main flow chamber; 12. a first diversion chamber; 13. a second diversion cavity; 14. an inlet; 15. an outlet; 2. a middle plate; 3. a cylinder; 31. a first cylinder; 32. a second cylinder.

Detailed Description

The present invention is described in further detail below with reference to figures 1-7.

Example 1:

the embodiment discloses a compressor exhaust structure; the compressor is a parallel-bar compressor and comprises an upper cylinder cover, a lower cylinder cover, a first cylinder 31, a second cylinder 32 and a middle plate 2; the middle plate 2 is arranged between the first cylinder 31 and the second cylinder 32, the first cylinder 31 and the second cylinder 32 are hollow, and are matched with the upper cylinder cover, the lower cylinder cover and the middle plate 2 to respectively form a first compression cavity and a second compression cavity of the compressor; the first cylinder 31 and the second cylinder 32 are both provided with slide sheet grooves, the interior of the first cylinder is provided with slide sheets for reciprocating motion, and the first compression cavity and the second compression cavity are divided into a suction side and an exhaust side.

The end faces of the middle plate 2 facing the first cylinder 31 and the second cylinder 32 are both provided with a Tesla valve cavity 1; the tesla valve chamber body 1 includes a main flow chamber 11, a first split chamber 12, a second split chamber 13, an inlet 14, and an outlet 15. One end of the main flow cavity 11 is an inlet 14, and the other end is an outlet 15; the inlets of the two tesla valve cavities 1 are respectively positioned at the inner sides of the first cylinder 31 and the second cylinder 32 and correspondingly communicated with the exhaust sides of the first compression cavity and the second compression cavity, the two outlets are respectively positioned at the outer sides of the first cylinder 31 or the second cylinder 32, and gas flows from the inlet 14 to the outlet 15; the first branch chamber 12 and the second branch chamber 13 are respectively arranged at two sides of the main flow chamber 11 where the gas flows in the forward direction, and respectively form a closed loop with the main flow chamber 11.

Referring to fig. 2, the right side of fig. 2 is a blade side, and the four arrows on the right side are exhaust directions, wherein the two horizontal arrows are exhaust directions passing through the two tesla valve cavities 1 respectively. The position and connection mode of the Tesla valve cavity 1 can refer to the attached figures 3 and 4, and the position can also refer to the shaded part in the attached figure 5.

The first diversion cavity 12 comprises a linear cavity and a semicircular cavity which are connected with each other, the linear cavity is arranged at one end of the first diversion cavity 12 close to the outlet 15, and the semicircular cavity is arranged at one side of the first diversion cavity 12 close to the inlet 14; one end of the linear cavity far away from the semi-circular cavity and one end of the semi-circular cavity far away from the linear cavity are both connected with the main flow cavity 11 and form a closed loop with the main flow cavity 11. The second shunting cavity 13 and the first shunting cavity 12 are symmetrically arranged, and the size and the structure of the second shunting cavity 13 are the same as those of the first shunting cavity 12.

In the present embodiment, there are two tesla valve cavities 1, and the two tesla valve cavities are respectively disposed on the end surfaces of the middle plate 22 facing the first cylinder 31 and the second cylinder 32; the first branch cavities 12 and the second branch cavities 13 are arranged in two, and are arranged alternately along the main flow cavity 11 in sequence.

Compared with the scheme in the background technology, the Tesla valve cavity 1 of the utility model utilizes the Tesla valve principle, namely, the exhaust from the inside of the cylinder 3 to the outside is forward conduction, and the exhaust leaked from the outside of the cylinder 3 to the inside of the cylinder 3 is reverse cut-off, so that one path of exhaust channel can be added, the exhaust loss at high rotating speed is effectively reduced, and the leakage is not caused.

Example 2:

the present embodiment discloses a compressor exhaust structure, most of the structure is the same as embodiment 1, except that: the compressor is a single-cylinder compressor, the middle plate 2, the first cylinder 31 and the second cylinder 32 are not arranged, and only one cylinder 3 is arranged between the upper cylinder cover and the lower cylinder cover; only one Tesla valve cavity 1 is arranged and is positioned on the end face of the cylinder 3 facing the lower cylinder cover.

Example 3:

the present embodiment discloses a compressor exhaust structure, most of the structure is the same as embodiment 2, except that: only one Tesla valve cavity 1 is arranged and is positioned on the end surface of the lower cylinder cover facing the cylinder 3.

Example 4:

the embodiment discloses a compressor, which is a parallel-bar compressor and is provided with the compressor exhaust structure described in the embodiment 1.

Example 5:

the embodiment discloses a compressor, which is a single-cylinder compressor and is provided with the exhaust structure of the compressor described in embodiment 2 or embodiment 3.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: equivalent changes made according to the structure, shape and principle of the application are all covered by the protection scope of the utility model.

Claims

1. The utility model provides a compressor exhaust structure, the compressor includes cylinder cap, lower cylinder cap, cylinder and gleitbretter, the inside cavity of cylinder, with go up the cylinder cap the cooperation of lower cylinder cap forms the compression chamber of compressor, set up the gleitbretter groove on the cylinder, inside sets up gleitbretter reciprocating motion, will the compression chamber is divided into suction side and exhaust side, its characterized in that:

the compressor exhaust structure comprises a Tesla valve cavity (1), and the Tesla valve cavity (1) is arranged on the cylinder (3) or the lower cylinder cover;

the Tesla valve cavity body (1) comprises a main flow cavity (11), a first branch flow cavity (12), a second branch flow cavity (13), an inlet (14) and an outlet (15); the inlet (14) and the outlet (15) are respectively arranged at two ends of the main flow cavity (11), the inlet (14) is positioned at the inner side of the cylinder (3) and correspondingly communicated with the exhaust side of the compression cavity, and the outlet (15) is positioned at the outer side of the cylinder (3); the first diversion cavity (12) and the second diversion cavity (13) are respectively arranged on two sides of the main flow cavity (11) and respectively form a closed loop with the main flow cavity (11).

2. A compressor discharge structure according to claim 1, wherein: the Tesla valve cavity (1) is arranged on the end face, facing the lower cylinder cover, of the cylinder (3).

3. A compressor discharge structure according to claim 1, wherein: the Tesla valve cavity (1) is arranged on the end face, facing the air cylinder (3), of the lower cylinder cover.

4. The utility model provides a compressor exhaust structure, the compressor includes cylinder cap, lower cylinder cap, first cylinder (31), second cylinder (32) and intermediate plate (2), intermediate plate (2) are located first cylinder (31) with between second cylinder (32), first cylinder (31) second cylinder (32) inside cavity, with go up the cylinder cap down the cylinder cap with intermediate plate (2) cooperation forms respectively the first compression chamber and the second compression chamber of compressor, first cylinder (31) with all set up the gleitbretter groove on second cylinder (32), inside sets up gleitbretter reciprocating motion, will first compression chamber with the second compression chamber all divides suction side and exhaust side, its characterized in that:

the compressor exhaust structure comprises a Tesla valve cavity (1), and the Tesla valve cavity (1) is arranged on the end face of the middle plate (2) facing the first compression cavity and/or the second compression cavity respectively;

the Tesla valve cavity body (1) comprises a main flow cavity (11), a first branch flow cavity (12), a second branch flow cavity (13), an inlet (14) and an outlet (15); the inlet (14) and the outlet (15) are respectively arranged at two ends of the main flow cavity (11), the inlet (14) is positioned at the inner side of the cylinder (3) and correspondingly communicated with the exhaust side of the first compression cavity or the second compression cavity, and the outlet (15) is positioned at the outer side of the cylinder (3); the first diversion cavity (12) and the second diversion cavity (13) are respectively arranged on two sides of the main flow cavity (11) and respectively form a closed loop with the main flow cavity (11).

5. A compressor discharge structure according to any one of claims 1 to 4, wherein: the first diversion cavity (12) and the second diversion cavity (13) are respectively provided with a linear cavity and a semicircular cavity which are connected with each other; the linear cavity is arranged at one side close to the outlet (15); the semicircular cavity is arranged at one side close to the inlet (14).

6. A compressor discharge structure in accordance with claim 5, wherein: the first shunting cavity (12) and the second shunting cavity (13) are arranged in a plurality and are the same in number.

7. A compressor discharge structure according to claim 6, wherein: the first branch cavities (12) and the second branch cavities (13) are sequentially and alternately arranged along the main flow cavity (11).

8. A compressor, characterized by: there is provided the compressor discharge structure as recited in any one of claims 1 to 4.