Self-air-cooling structure of dry vacuum pump

Abstract

The utility model discloses a dry vacuum pump self-air-cooling structure which comprises a base, a vacuum pump body is fixedly connected to the top of the base, an air inlet pipe and an air exhaust pipe are arranged at one end of the vacuum pump body, an air cooling mechanism corresponding to the air exhaust pipe is arranged outside the vacuum pump body, and the air cooling mechanism comprises a connecting pipe. Branch pipes are fixedly connected to the two sides of the connecting pipe, a flow channel is arranged between the connecting pipe and the branch pipes, an exhaust outlet is formed in the middle of the connecting pipe, air channels are arranged on the two sides of the exhaust outlet, and heat dissipation frames are fixedly connected to the tail ends of the branch pipes. According to the utility model, through mutual cooperation among the exhaust pipe, the heat dissipation frame, the heat dissipation sheet and the refrigeration sheet, when the vacuum pump works, the refrigeration sheet is synchronously started, heat in the vacuum pump shell is transferred out, and meanwhile, a part of airflow exhausted from the exhaust end of the vacuum pump is introduced into the heat dissipation frame, so that the heat on the heat dissipation sheet is accelerated to be discharged; the heat dissipation efficiency of the vacuum pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dry vacuum pumps, in particular to a dry vacuum pump self-air cooling structure. Background Art

[0002] A dry vacuum pump is a mechanical vacuum pump that can pump air from atmospheric pressure and discharge it directly into the atmosphere. The pump chamber is free of oil or other working media, and its ultimate pressure is comparable to or similar to that of an oil-sealed vacuum pump. The main advantage of a dry vacuum pump is its improved performance and reliability, making it suitable for applications requiring high purity and an oil-free environment.

[0003] When a dry vacuum pump is working, its internal components will generate a lot of heat. In order to make the vacuum pump run stably for a long time and avoid the related components being in a high temperature environment for a long time, it is necessary to dissipate heat from the pump body.

[0004] The traditional heat dissipation method is to install air cooling or water cooling equipment outside the vacuum pump. Both equipment need to be started at the same time as the vacuum pump, and energy will continue to be consumed as the pump body continues to run.

[0005] For this purpose, we propose to design a dry vacuum pump self-air cooling structure. Utility Model Content

[0006] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A dry vacuum pump self-cooling structure includes a base, a vacuum pump body is fixedly connected to the top of the base, an air inlet pipe and an exhaust pipe are provided at one end of the vacuum pump body, and an air cooling mechanism corresponding to the exhaust pipe is provided on the outside of the vacuum pump body;

[0009] The air cooling mechanism includes a connecting pipe, both sides of which are fixedly connected to branch pipes, a flow channel is provided between the connecting pipe and the branch pipes, an exhaust port is provided in the middle of the connecting pipe, and air channels are provided on both sides of the exhaust port;

[0010] The end of the branch pipe is fixedly connected to a heat dissipation frame, a plurality of heat dissipation fins are fixedly connected inside the heat dissipation frame, a heat dissipation groove is provided between two adjacent heat dissipation fins, and a cooling fin is embedded and fixedly connected on the side of the heat dissipation frame close to the vacuum pump body.

[0011] As an optimal solution for the self-air cooling structure of a dry vacuum pump described in the utility model, a positioning ring is fixedly connected to the edge of one side of the connecting pipe close to the exhaust pipe, and the inner wall of the positioning ring is fixedly connected to the outer wall of the exhaust pipe, so as to facilitate the corresponding connection of the connecting pipe and the branch pipe with the exhaust end of the vacuum pump.

[0012] As a preferred solution of the self-air cooling structure of a dry vacuum pump described in the utility model, the air duct is correspondingly connected to the flow channel, and an arc-shaped guide block is fixedly connected to one end of the flow channel close to the air duct, so that a part of the air flow discharged from the pump body can be better diverted into the flow channel along the guide block.

[0013] As a preferred solution of the self-air cooling structure of a dry vacuum pump described in the utility model, the two heat dissipation racks are respectively fixedly connected to the two sides of the outer wall of the vacuum pump body, one side of the cooling fin is tightly fitted with the outer wall of the vacuum pump body, and the other side of the cooling fin is fixedly connected to the heat dissipation fin. By arranging cooling fins on both sides of the vacuum pump body, the heat inside the vacuum pump can be directly transferred to the outside of the pump body, thereby facilitating heat dissipation.

[0014] As a preferred solution of the self-air cooling structure of a dry vacuum pump described in the utility model, the heat sink is arranged in an open shape at one end away from the branch pipe, and the exhaust port and the air duct are both connected to the exhaust pipe accordingly. A part of the gas discharged from the exhaust pipe is directly discharged from the exhaust port, while the other part enters the air duct and then enters the branch pipe, and continues to flow through the heat sink in the heat sink and is discharged from the opening of the heat sink, so as to facilitate the heat dissipation of the outer wall of the vacuum pump body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model realizes the mutual cooperation among the exhaust pipe, the heat dissipation frame, the heat sink and the refrigeration fin. When the vacuum pump is working, the refrigeration fin is started synchronously to transfer the heat inside the vacuum pump casing. At the same time, a part of the air flow discharged from the exhaust end of the vacuum pump is introduced into the heat dissipation frame, thereby accelerating the discharge of heat from the heat sink and improving the heat dissipation efficiency of the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0018] Figure 1This is a schematic diagram of the installation of a dry vacuum pump self-air cooling structure of the utility model;

[0019] Figure 2 This is a structural diagram of a dry vacuum pump self-air cooling structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the air cooling mechanism of a dry vacuum pump self-air cooling structure of the present utility model.

[0021] Legend: 1. Base; 2. Vacuum pump body; 3. Air inlet pipe; 4. Exhaust pipe; 5. Air cooling mechanism; 501. Connecting pipe; 502. Branch pipe; 503. Heat sink; 504. Heat sink; 505. Heat sink; 6. Flow channel; 7. Exhaust port; 8. Air duct; 9. Positioning ring; 10. Refrigeration plate; 11. Guide block. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0025] See also Figure 1-3 The utility model provides a dry vacuum pump self-cooling structure, including a base 1, a vacuum pump body 2 is fixedly connected to the top of the base 1, an air inlet pipe 3 and an exhaust pipe 4 are provided at one end of the vacuum pump body 2, and an air cooling mechanism 5 corresponding to the exhaust pipe 4 is provided on the outside of the vacuum pump body 2.

[0026] The air cooling mechanism 5 includes a connecting pipe 501 , both sides of which are fixedly connected to branch pipes 502 , and a positioning ring 9 is fixedly connected to the edge of one side of the connecting pipe 501 close to the exhaust pipe 4 , and the inner wall of the positioning ring 9 is fixedly connected to the outer wall of the exhaust pipe 4 .

[0027] A flow channel 6 is provided between the connecting pipe 501 and the branch pipe 502 . An air outlet 7 is provided in the middle of the connecting pipe 501 , and air channels 8 are provided on both sides of the air outlet 7 .

[0028] Among them, the air duct 8 is connected to the flow channel 6 accordingly, and the flow channel 6 is fixedly connected to an arc-shaped guide block 11 at one end close to the air duct 8, so that part of the air flow discharged from the pump body can be better diverted into the flow channel 6 along the guide block 11.

[0029] The end of the branch pipe 502 is fixedly connected to a heat sink 503, and a plurality of heat sinks 504 are fixedly connected inside the heat sink 503. A heat sink slot 505 is provided between two adjacent heat sinks 504. A cooling fin 10 is embedded and fixedly connected to the side of the heat sink 503 close to the vacuum pump body 2.

[0030] The end of the heat dissipation frame 503 away from the branch pipe 502 is open, and the exhaust port 7 and the air duct 8 are connected to the exhaust pipe 4. Part of the gas discharged from the exhaust pipe 4 is directly discharged from the exhaust port 7, while the other part enters the air duct 8, and then enters the branch pipe 502, and continues to flow through the heat sink 504 in the heat dissipation frame 503, and is discharged from the opening of the heat dissipation frame 503, so as to dissipate heat to the outer wall of the vacuum pump.

[0031] The two heat dissipation frames 503 are respectively fixedly connected to the two sides of the outer wall of the vacuum pump body 2, one side of the cooling fin 10 is tightly fitted with the outer wall of the vacuum pump body 2, and the other side of the cooling fin 10 is fixedly connected to the heat dissipation 504. By arranging the cooling fins 10 on both sides of the vacuum pump body 2, the heat inside the vacuum pump can be directly transferred to the outside of the pump body, thereby facilitating heat dissipation.

[0032] When in use, the cooling fin 10 is connected to the power supply of the vacuum pump body 2. When the vacuum pump body 2 is working, the cooling fin 10 starts to transfer the heat of the inner shell of the vacuum pump body 2 to the external heat sinks 504, so that the heat can be better dissipated.

[0033] When the vacuum pump body 2 is working, the air flow is discharged from the exhaust pipe 4, enters the exhaust port 7 and is directly discharged, and the other part enters the air duct 8, then flows through the guide block 11 and enters the flow channel 6, and finally flows into the heat sink 503 through the branch pipe 502, flows through several heat dissipation slots 505, takes away the heat on the heat sink 504, and is finally discharged from the end of the heat sink 503, thereby improving the heat dissipation efficiency of the vacuum pump.

[0034] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A dry vacuum pump self-cooling structure, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a vacuum pump body (2), one end of the vacuum pump body (2) is provided with an air inlet pipe (3) and an air exhaust pipe (4), and the outside of the vacuum pump body (2) is provided with an air cooling mechanism (5) corresponding to the air exhaust pipe (4); The air cooling mechanism (5) comprises a connecting pipe (501), both sides of the connecting pipe (501) are fixedly connected to branch pipes (502), a flow channel (6) is provided between the connecting pipe (501) and the branch pipes (502), an exhaust port (7) is provided in the middle of the connecting pipe (501), and air ducts (8) are provided on both sides of the exhaust port (7); The end of the branch pipe (502) is fixedly connected to a heat dissipation frame (503), a plurality of heat dissipation fins (504) are fixedly connected inside the heat dissipation frame (503), a heat dissipation groove (505) is provided between two adjacent heat dissipation fins (504), and a cooling fin (10) is embedded and fixedly connected on a side of the heat dissipation frame (503) close to the vacuum pump body (2).

2. The dry vacuum pump self-air cooling structure according to claim 1, characterized in that: A positioning ring (9) is fixedly connected to the edge of one side of the connecting pipe (501) close to the exhaust pipe (4), and the inner wall of the positioning ring (9) is fixedly connected to the outer wall of the exhaust pipe (4).

3. The dry vacuum pump self-air cooling structure according to claim 1, characterized in that: The air duct (8) is connected to the flow duct (6) in correspondence, and an arc-shaped guide block (11) is fixedly connected to one end of the flow duct (6) close to the air duct (8).

4. The dry vacuum pump self-air cooling structure according to claim 1, characterized in that: The two heat dissipation frames (503) are respectively fixedly connected to the two sides of the outer wall of the vacuum pump body (2); one side of the refrigeration fin (10) is tightly fitted to the outer wall of the vacuum pump body (2); and the other side of the refrigeration fin (10) is fixedly connected to the heat dissipation fin (504).

5. The dry vacuum pump self-air cooling structure according to claim 1, characterized in that: One end of the heat dissipation rack (503) away from the branch pipe (502) is arranged in an open shape, and the exhaust port (7) and the air duct (8) are both connected to the exhaust pipe (4) accordingly.

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