CN219388247U

CN219388247U - Exhaust structure of air cooling system of air compressor and air compressor

Info

Publication number: CN219388247U
Application number: CN202320121876.6U
Authority: CN
Inventors: 王红; 牛丹丹; 杨登峰; 牛树谭; 张玉松; 周敏; 关占帅; 谷勇梅; 李子豪
Original assignee: Hebei Kingston Technology Co ltd
Current assignee: Hebei Kingston Technology Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-07-21
Anticipated expiration: 2033-01-30

Abstract

The utility model provides an exhaust structure of an air cooling system of an air compressor and the air compressor, which belong to the technical field of manufacturing of air compressors and comprise a conformal air passage and a connecting air passage, wherein the conformal air passage is arranged in the side wall of a first-stage volute, an air inlet communicated with the first-stage volute is arranged on the side wall of an air compressor shell, the connecting air passage is positioned at one end close to the first-stage volute, and the connecting air passage is integrally cast and molded and communicated with an inner cavity of the air compressor and the conformal air passage. According to the exhaust structure of the air cooling system of the air compressor, the connecting air passage is arranged in the side wall of the shell of the air compressor, so that the connecting air passage is positioned at one end close to the first-stage volute, the whole length of the connecting air passage is short, and the connecting air passage can be integrally formed in a casting processing mode, so that a plug in the prior art is eliminated, and leakage of cooling gas during transmission in the exhaust structure is avoided.

Description

Exhaust structure of air cooling system of air compressor and air compressor

Technical Field

The utility model belongs to the technical field of air compressor manufacturing, and particularly relates to an air compressor and an exhaust structure of an air cooling system of the air compressor.

Background

The two-stage centrifugal air compressor for the fuel cell is provided with an air cooling system for cooling the internal bearing and the motor. The exhaust mode of the air cooling system of the air compressor is generally divided into external exhaust and internal exhaust, the external exhaust is communicated with the motor chamber through a peripheral pipeline to realize exhaust, the internal exhaust is communicated with the air inlet of the first-stage volute through an internal exhaust structure arranged on the air compressor, cooling gas is led to be discharged into the air inlet of the first-stage volute through the inner cavity of the air compressor, the internal exhaust is realized, the external exhaust pipeline is omitted by the air compressor due to the internal exhaust, the design space and the cost are saved, and the air cooling system has important application significance.

The internal exhaust structure commonly used at present, as shown in fig. 1, including radial air flue 41, axial air flue 42 and shape air flue 3 that communicate in proper order, wherein, radial air flue 41 is for setting up first exhaust hole in the lateral wall of air compressor housing 1, be located the one end and the air compressor inner chamber 6 intercommunication of keeping away from one-level spiral case 2, shape air flue 3 is the shape hole along with setting up in the inside of lateral wall of one-level spiral case 2, communicate with the air inlet 7 of one-level spiral case 2, axial air flue 42 is for setting up the second exhaust hole in the lateral wall of air compressor housing 1 along the axial, communicate first exhaust hole and shape hole along with shape hole, in the manufacturing process, because second exhaust hole length is longer, normally use the drilling machine to process first exhaust hole and second exhaust hole, in order to reduce the processing degree of difficulty, make first exhaust hole run through air compressor housing 1 lateral wall in the processing, the end cap 5 is kept away from the port of air compressor inner chamber 6 with first exhaust hole to shutoff after the processing is accomplished, however, in practical application, plug 5 receives the influence of air compressor vibration, easily become flexible, thereby lead to cooling gas to leakage.

Disclosure of Invention

The utility model aims to provide an exhaust structure of an air cooling system of an air compressor, and aims to solve the problem that cooling gas is easy to leak in the exhaust structure in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an air compressor machine forced air cooling system exhaust structure and air compressor machine, include shape air flue and connection air flue along with shape air flue locates inside the lateral wall of one-level spiral case, the air inlet of intercommunication one-level spiral case, connect the air flue to locate on the lateral wall of air compressor machine casing, be located the one end that is close to one-level spiral case, connect the integrative casting shaping of air flue, intercommunication air compressor machine inner chamber and shape air flue along with.

In one possible implementation manner, a thickening block is arranged on the side wall of the air compressor shell, the thickening block is located at one end close to the first-stage volute, and the connecting air passage penetrates through the thickening block to communicate the inner cavity of the air compressor with the conformal air passage.

In one possible implementation manner, the end face, close to the first volute, of the thickening block is provided with a gas collecting channel, and the connecting air channel is communicated with the conformal air channel through the gas collecting channel.

In one possible implementation, the cross-sectional area of the connecting air passage and the conformal air passage are smaller than the cross-sectional area of the gas collecting channel.

In one possible implementation manner, the connecting air passage comprises a first section of hole and a second section of hole which are connected with each other, the first section of hole penetrates through the side wall of the air compressor shell to be communicated with the inner cavity of the air compressor, and the second section of hole penetrates through the thickening block to be communicated with the air collecting tank.

In one possible implementation, the first section of holes is arranged along a radial direction of the air compressor housing.

In one possible implementation, the second section of hole is a curved hole located in the middle of the thickened block.

In one possible implementation, the angle between the centerline of the curved bore intake port and the centerline of the curved Kong Chuqi port is 90 °.

The exhaust structure of the air cooling system of the air compressor has the beneficial effects that: compared with the prior art, the air cooling system exhaust structure of the air compressor has the advantages that the connecting air passage is arranged in the side wall of the air compressor shell, so that the connecting air passage is positioned at one end close to the first-stage volute, the whole length of the connecting air passage is shorter, and the connecting air passage can be integrally formed in a casting processing mode, so that a plug in the prior art is eliminated, and further leakage of cooling gas during transmission in the exhaust structure is avoided.

The utility model also provides an air compressor, which comprises the air compressor air cooling system exhaust structure.

Compared with the prior art, the air compressor provided by the utility model has the advantages that the exhaust structure of the air compressor air cooling system has all the beneficial effects of the exhaust structure of the air compressor air cooling system, the connecting air passage is arranged in the side wall of the air compressor shell and is positioned at one end close to the first-stage volute, the whole length of the connecting air passage is shorter, and the connecting air passage can be integrally formed in a casting processing mode, so that a plug in the prior art is eliminated, and the leakage of cooling gas in the exhaust structure is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an exhaust structure of an air cooling system in the prior art;

fig. 2 is a schematic structural diagram of an exhaust structure of an air cooling system of an air compressor according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of an air compressor housing according to an embodiment of the present utility model.

Reference numerals illustrate:

1. an air compressor housing; 2. a first-order volute; 3. a conformal airway; 41. a radial airway; 42. an axial airway; 5. a plug; 6. an inner cavity of the air compressor; 7. an air inlet; 8. thickening blocks; 81. connecting an air passage; 811. a first section of aperture; 812. a second section of hole; 9. and a gas collecting tank.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. 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.

Referring to fig. 1 to 3, an exhaust structure of an air cooling system of an air compressor and the air compressor provided by the utility model will now be described. An air compressor machine forced air cooling system exhaust structure includes along with shape air flue 3 and connection air flue 81, along with shape air flue 3 locates inside the lateral wall of one-level spiral case 2, and the air inlet 7 of intercommunication one-level spiral case 2 is located on the lateral wall of air compressor machine casing 1, is located the one end that is close to one-level spiral case 2, connects the integrative casting machine shaping of air flue 81, intercommunication air compressor machine inner chamber 6 and along with shape air flue 3.

Compared with the prior art, the air cooling system exhaust structure of the air compressor has the advantages that the connecting air passage 81 is arranged in the side wall of the air compressor shell 1 and is positioned at one end close to the first-stage volute 2, the whole length of the connecting air passage 81 is short, and the connecting air passage 81 can be integrally formed in a casting processing mode, so that the plug 5 in the prior art is omitted, and leakage of cooling gas during transmission in the exhaust structure is avoided.

In some embodiments, referring to fig. 2 and 3, a thickening block 8 is disposed on a side wall of the air compressor housing 1, the thickening block 8 is located at one end close to the first-stage volute 2, an end surface of the thickening block 8 close to one end of the first-stage volute 2 is a connection end surface, in this embodiment, the connection end surface is attached to an installation end surface of the first-stage volute 2, an air collecting groove 9 is disposed on the connection end surface, the air collecting groove 9 corresponds to and is communicated with a conformal air channel 3 disposed in a side wall of the first-stage volute 2, and the connection air channel 81 is communicated with the conformal air channel 3 through the air collecting groove 9. In this embodiment, the air collecting channel 9 is rectangular, the shape-following air channel 3 is a shape-following hole arranged in the side wall of the first-stage volute 2, the connecting air channel 81 comprises a first section hole 811 and a second section hole 812 which are connected with each other, the first section hole 811 is arranged in the side wall of the air compressor housing 1, the second section hole 812 is arranged in the thickening block 8, the first section hole 811 is communicated with the inner cavity 6 of the air compressor, the second section hole 812 is communicated with the air collecting channel 9, in this embodiment, the cross-sectional area of the second section hole 812 and the cross-sectional area of the shape-following hole are smaller than the cross-sectional area of the air collecting channel 9, and through the connecting effect of the air collecting channel 9, the flow of cooling air flowing into the shape-following hole from the second section hole 812 is the largest.

Further, referring to fig. 2, the first hole 811 is a straight hole radially arranged along the air compressor housing 1, the second hole 812 is a curved hole arranged in the middle of the thickening block 8, the first hole 811 penetrates through the side wall of the air compressor housing 1 to communicate the second hole 812 with the air compressor inner cavity 6, the second hole 812 penetrates through the thickening block 8 to communicate the air collecting groove 9 with the first hole 811, in this embodiment, the curved hole is curved by 90 °, that is, an included angle between the center line of the air inlet port of the curved hole and the center line of the air inlet port of the curved hole Kong Chuqi is 90 °, by arranging the curved hole, the curved hole is easy to be connected with the shape following hole, the flow direction of the cooling gas is guided to change to facilitate the discharge of the cooling gas, and by arranging the curved hole in the middle of the thickening block 8, the wall thickness of the side wall around the curved hole on the thickening block 8 is uniform to facilitate casting, and the casting defect is reduced.

The utility model also provides an air compressor, and an exhaust structure of the air cooling system of the air compressor is used.

Compared with the prior art, the air compressor provided by the utility model has the advantages that the air compressor air cooling system exhaust structure has all the beneficial effects, the connecting air passage 81 is arranged in the side wall of the air compressor shell 1 and is positioned at one end close to the first-stage volute 2, the whole length of the connecting air passage 81 is shorter, and the connecting air passage 81 can be integrally formed in a casting processing mode, so that the plug 5 in the prior art is eliminated, and the leakage of cooling gas in the exhaust structure during transmission is avoided.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides an air compressor machine forced air cooling system exhaust structure, its characterized in that includes shape air flue (3) and connects air flue (81), shape air flue (3) along with the inside of lateral wall of locating one-level spiral case (2), air inlet (7) of intercommunication one-level spiral case (2), connect air flue (81) to locate on the lateral wall of air compressor machine casing (1), lie in the one end that is close to one-level spiral case (2), connect air flue (81) integrative casting machine shaping, intercommunication air compressor machine inner chamber (6) and shape air flue (3) along with.

2. The air cooling system exhaust structure of the air compressor according to claim 1, wherein a thickening block (8) is arranged on the side wall of the air compressor shell (1), the thickening block (8) is positioned at one end close to the first-stage volute (2), and the connecting air passage (81) penetrates through the thickening block (8) to be communicated with the inner cavity (6) of the air compressor and the conformal air passage (3).

3. The air cooling system exhaust structure of the air compressor according to claim 2, wherein the end surface of the thickening block (8) close to the first volute is provided with an air collecting groove (9), and the connecting air passage (81) is communicated with the conformal air passage (3) through the air collecting groove (9).

4. A compressor air cooling system exhaust structure according to claim 3, wherein the cross-sectional areas of the connecting air passage (81) and the conformal air passage (3) are smaller than the cross-sectional area of the air collecting channel (9).

5. A compressor air cooling system exhaust structure according to claim 3, wherein the connecting air passage (81) comprises a first section hole (811) and a second section hole (812) which are connected with each other, the first section hole (811) penetrates through the side wall of the compressor housing (1) to be communicated with the compressor inner cavity (6), and the second section hole (812) penetrates through the thickening block (8) to be communicated with the air collecting tank (9).

6. An air cooling system exhaust structure of an air compressor according to claim 5, wherein the first section hole (811) is arranged along a radial direction of the air compressor housing (1).

7. The exhaust structure of the air cooling system of the air compressor according to claim 6, wherein the second section hole (812) is a curved hole, and the curved hole is located in the middle of the thickening block (8).

8. The air compressor air cooling system exhaust structure of claim 7, wherein an included angle between a center line of the curved hole air inlet port and a center line of the curved Kong Chuqi port is 90 °.

9. An air compressor, characterized by comprising the air compressor air cooling system exhaust structure as claimed in any one of claims 1-8.