A high-efficiency vacuum pump unit

Abstract

This invention relates to a high-efficiency vacuum pump unit, comprising: a unit platform, a motor and a pump platform mounted on the top of the unit platform, a pump body connected to the motor mounted on the top of the pump platform, and vertical plates mounted on both sides of the pump body on the pump platform. A second vertical plate is mounted on the top of the unit platform. A cylindrical box is provided on one side of the unit platform. The cylindrical box is connected to the air outlet of the pump body via an air-cooling section, and the cylindrical box is connected to the motor via a water-cooling section. This invention utilizes the air-cooling section's design, employing the airflow drawn by the vacuum pump itself for convective heat dissipation, avoiding the energy consumption and losses associated with using an additional motor fan. Its operation is closely linked to the working state of the pump body; the airflow pressure generated during pump operation automatically drives the mechanical structure of the air-cooling section, achieving intelligent control of heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of vacuum pump unit design technology, and more specifically, to a high-efficiency vacuum pump unit. Background Technology

[0002] With the development of modern industry, vacuum pump units are playing an increasingly important role in many fields. However, many applications require vacuum pumps to operate continuously for extended periods, posing a significant challenge to the heat dissipation of the pump body and motor. Currently, the most common type is the screw vacuum pump, which consists of two screw-shaped rotors rotating within a cylindrical pump body. The process gas passes axially through the pump chamber, with no contact between the screws or between the pump body and the screws. The cylindrical pump body accommodates the rotation of the two screw rotors. However, vacuum pumps generate significant energy during operation, and during prolonged operation, the pump body and motor produce a large amount of heat. If this heat cannot be dissipated in time, the temperature of the pump body and motor will rise, affecting the performance and lifespan of the vacuum pump. Specifically, high temperatures reduce the pumping capacity, increase gas pressure, making it more difficult for the pump to extract gas, thus affecting the overall vacuum level of the system. Furthermore, high temperatures can accelerate the wear and aging of internal components in the pump body and motor, shortening the pump's lifespan.

[0003] Currently, many vacuum pump units use water pumps and motor-driven fan cooling for heat dissipation, which is a common method. However, these methods have some significant drawbacks. They all rely on additional electricity for operation. Water pump cooling requires extra power to drive the pump and circulate water to remove heat. This not only increases power consumption but may also lead to increased energy costs. Motor-driven fan cooling relies on airflow generated by a fan to remove heat; however, the fan's operation also consumes electricity, further increasing the overall power consumption of the vacuum pump unit.

[0004] Therefore, it is particularly necessary to design a high-efficiency vacuum pump unit to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a high-efficiency vacuum pump unit. By designing air-cooled and water-cooled sections, it achieves multiple beneficial effects such as high-efficiency heat dissipation, intelligent control, compact structure, easy maintenance, and resource saving, bringing new technological breakthroughs and innovations to the field of vacuum pump units, and solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides a high-efficiency vacuum pump unit, comprising: a unit platform, a motor and a pump platform installed on the top of the unit platform, a pump body connected to the motor installed on the top of the pump platform, and vertical plates one on both sides of the pump body installed on the pump platform, a second vertical plate installed on the top of the unit platform, a cylindrical box provided on one side of the unit platform, an air-cooling section connected between the cylindrical box and the air outlet of the pump body, and a water-cooling section connected between the cylindrical box and the motor;

[0007] The air-cooling section includes a circular plate that slides up and down inside a cylindrical box. Two sealed elastic telescopic air cylinders are connected between the bottom of the circular plate and the bottom of the cylindrical box. A fixed cylinder is connected to the top of the circular plate. An air outlet pipe that is connected to the air outlet of the pump body is slidably inserted into the top opening of the fixed cylinder.

[0008] The fixed cylinder has a first air guide pipe at the lower end of one side. The first air guide pipe passes through the top of the cylindrical box and slides outside the second air guide pipe. One end of the second air guide pipe is fixedly connected to one side of the third air guide pipe. The third air guide pipe is fixed to one side of the second vertical plate and passes through the first vertical plate. At the same time, a fourth air guide pipe is sealed and slides on one side of the third air guide pipe. Both cooling arc plates have multiple curved pipes inside. When the two cooling arc plates are spliced ​​together to form a cylinder, the outlets of all the curved pipes are connected to form a spiral pipe. The fourth air guide pipe is connected to one end of the spiral pipe, and the other end of the spiral pipe is connected to the exhaust pipe.

[0009] One side of the elastic telescopic air cylinder is connected to an air supply pipe that passes through the cylindrical box. The other end of the air supply pipe is connected to an elastic telescopic air cylinder. The elastic telescopic air cylinder is fixedly installed on the vertical plate 1 and the vertical plate 2 and is connected to the cooling arc plate. The two cooling arc plates can be clamped to the outside of the pump body and fit together.

[0010] Two guide rods are also fixed to the back of the cooling arc plate, and the guide rods slide through vertical plate one and vertical plate two.

[0011] Optionally, the water-cooled section includes an annular heat exchange aluminum cylinder block wrapped around the outer wall of the motor. The outer wall of the aluminum cylinder block is connected to the top surface of the unit platform through a row of heat exchange aluminum fins. The heat exchange tube passes through the heat exchange aluminum fins. One end of the heat exchange tube is connected to the upper part of the recovery tank, and the other end of the heat exchange tube passes through the support plate of the pump platform, connects to the side end of the cylindrical box, and is inserted into the interior.

[0012] Optionally, when the pump body is in operation, the circular plate is located below the inlet of the heat exchange tube.

[0013] Optionally, the portion of the heat exchange tube that passes through the heat exchange aluminum fin has a serpentine design and repeatedly passes through the tube holes of the heat exchange aluminum fin.

[0014] Optionally, a ring plate is fixed to the inner wall of the cylindrical box, and the bottom surface of the ring plate is in contact with the top surface of the circular plate when the pump body is not working.

[0015] Optionally, two arc-shaped seats are installed on the top of the pump platform, and corresponding arc-shaped clamping blocks are fixedly installed on the top of the arc-shaped seats by bolts. The pump body is fixed between the top of the arc-shaped seats and the corresponding arc-shaped clamping blocks.

[0016] Optionally, a sealing gasket is provided on the splicing surface of one of the cooling arc plates to improve the sealing performance after the two cooling arc plates are spliced ​​together.

[0017] Optionally, the inner wall of the first air guide tube is connected to the sealing column by four uniform thin rods. The sealing column can be inserted from the bottom of the second air guide tube, and the sealing column is detached from the second air guide tube and located below it when the two cooling arc plates are displaced and attached.

[0018] The beneficial effects of this invention are:

[0019] 1. The present invention utilizes the air-cooling section to perform convective heat dissipation by drawing airflow from the vacuum pump itself, thus avoiding the energy consumption and losses caused by using an additional motor fan. Its operation is closely linked to the working state of the pump body. The airflow pressure generated when the pump body is working automatically drives the mechanical structure of the air-cooling section, thereby realizing intelligent control of heat dissipation.

[0020] 2. The water-cooling section of the present invention greatly increases the contact area of ​​heat exchange and improves the heat exchange efficiency through the design of the annular heat exchange aluminum cylinder block and heat exchange aluminum fins. In addition, the water-cooling section operates by being driven by the air-cooling section, without using an additional water pump power supply, and has the advantages of efficient heat dissipation, quiet operation and stability.

[0021] 3. The present invention also facilitates the installation of the pump body through the splicing design of the cooling arc plates. During installation, the pump body is placed in the arc seat through the space between the two cooling arc plates, then fixed with clamp blocks, and finally the motor is installed and connected, which is very convenient.

[0022] 4. This invention, through the design of the sealing column, ensures that under normal conditions, the sealing column is firmly supported on the inner wall of the first gas guide pipe by four evenly spaced thin rods. At this time, the bottom of the sealing column extends into the opening of the second gas guide pipe, forming an effective sealing barrier that prevents gas from flowing from the first gas guide pipe into the second gas guide pipe. When the two cooling arc plates begin to shift and gradually come together, the sealing column detaches from the second gas guide pipe, allowing gas to enter. This provides an efficient and reliable gas flow control mechanism for vacuum pump units or other related equipment. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This invention provides an integrated three-dimensional high-efficiency vacuum pump unit. Figure 1 ;

[0025] Figure 2This invention provides an integrated three-dimensional high-efficiency vacuum pump unit. Figure 2 ;

[0026] Figure 3 This is a partial three-dimensional representation of a high-efficiency vacuum pump unit according to the present invention. Figure 1 ;

[0027] Figure 4 This is a partial three-dimensional representation of a high-efficiency vacuum pump unit according to the present invention. Figure 2 ;

[0028] Figure 5 This is a partial three-dimensional representation of a high-efficiency vacuum pump unit according to the present invention. Figure 3 ;

[0029] Figure 6 This is a perspective view of the bent tube of a high-efficiency vacuum pump unit according to the present invention;

[0030] Figure 7 This is a perspective view of the air-cooled section of a high-efficiency vacuum pump unit according to the present invention;

[0031] Figure 8 This invention relates to a high-efficiency vacuum pump unit. Figure 7 Enlarged view of point A in the middle;

[0032] Figure 9 This is a perspective view of the unit platform of a high-efficiency vacuum pump unit according to the present invention;

[0033] Figure 10 This is a sectional perspective view of the cooling arc plate of a high-efficiency vacuum pump unit according to the present invention;

[0034] Figure 11 This is a front sectional view of the connection between the first and second air guide pipes of a high-efficiency vacuum pump unit according to the present invention.

[0035] In the picture:

[0036] 1. Unit platform; 11. Pump platform; 12. Vertical plate II; 13. Vertical plate I; 14. Motor; 15. Pump body; 16. Cylindrical box; 17. Arc seat; 18. Clamp block; 19. Ring plate; 2. Air-cooled section; 21. Air outlet pipe; 22. Fixed cylinder; 23. Circular plate; 24. Elastic telescopic air cylinder I; 25. Air delivery pipe; 26. Elastic telescopic air cylinder II; 27. Cooling arc plate; 28. Guide rod; 29. ​​Air guide pipe I; 210. Air guide pipe II; 211. Air guide pipe III; 212. Air guide pipe IV; 213. Bend pipe; 214. Exhaust pipe; 215. Thin rod; 216. Sealing column; 3. Water-cooled section; 31. Aluminum cylinder block; 32. Heat exchange aluminum plate; 33. Heat exchange tube; 34. Recovery box. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0038] like Figures 1-11 As shown, a high-efficiency vacuum pump unit of the present invention includes: a unit platform 1, a motor 14 and a pump platform 11 mounted on the top of the unit platform 1, a pump body 15 connected to the motor 14 mounted on the top of the pump platform 11, and vertical plates 13 mounted on both sides of the pump body 15 on the pump platform 11. A second vertical plate 12 is mounted on one side of the vertical plate 13 on the top of the unit platform 1. A cylindrical box 16 is provided on one side of the unit platform 1. An air-cooling section 2 is connected between the cylindrical box 16 and the air outlet of the pump body 15, and a water-cooling section 3 is connected between the cylindrical box 16 and the motor 14.

[0039] The air-cooled section 2 includes a sealed, sliding circular plate 23 inside a cylindrical box 16. Cooling water is installed above the circular plate 23. Two sealed, elastic telescopic air cylinders 24 are connected between the bottom of the circular plate 23 and the bottom of the cylindrical box 16. Note that the telescopic end of the elastic telescopic air cylinder 24 is connected to the circular plate 23, while the fixed end, i.e., the air cylinder, is connected to the bottom of the cylindrical box 16. A fixed cylinder 22 is connected to the top of the circular plate 23. An air outlet pipe 21 is slidably inserted into the top opening of the fixed cylinder 22. The air outlet pipe 21 is connected to the air outlet of the pump body 15. One side of the cylinder of the elastic telescopic air cylinder 24 is connected to an air supply pipe 25 that passes through the cylindrical box 16. The other end of the air supply pipe 25 is connected to an elastic telescopic air cylinder 26. The elastic telescopic air cylinder 26 is fixedly installed on the vertical plate 13 and the vertical plate 22 and is connected to the cooling arc plate 27. The two cooling arc plates 27 can be clamped and fitted to the outside of the pump body 15. The cooling arc plate 27 is used. Note that the telescopic end of the elastic telescopic air cylinder 26 is connected to the cooling arc plate 27, while the fixed end, i.e., the air cylinder, is fixed in the corresponding circular openings of the vertical plate 13 and the vertical plate 22. Two guide rods 28 are also fixed on the back of the cooling arc plate 27. The guide rods 28 slide through the vertical plate 13 and the vertical plate 22. Note that the elastic telescopic air cylinder 1 24 and the elastic telescopic air cylinder 26 are existing designs, mainly composed of a cylinder body, elastic elements and telescopic ends. The cylinder body is the main structure of the air cylinder, usually made of materials such as metal or high-strength plastic, and has sufficient strength and rigidity to withstand the pressure of the internal gas and the load of the external environment. The elastic element, such as a spring, works with the telescopic end to provide the telescopic function. When the internal gas pressure of the air cylinder changes, the elastic element can deform, thereby driving the telescopic end to telescopically move within the internal cylinder body. This will not be elaborated here.

[0040] A first air guide pipe 29 is provided at the lower end of one side of the fixed cylinder 22. The first air guide pipe 29 passes through the top of the cylindrical box 16 and slides sealed outside the second air guide pipe 210. One end of the second air guide pipe 210 is fixedly connected to the third air guide pipe 211. The third air guide pipe 211 is fixed to one side of the second vertical plate 12 and passes through the first vertical plate 13. At the same time, a fourth air guide pipe 212 slides sealed on one side of the third air guide pipe 211. Both cooling arc plates 27 have multiple curved pipes 213 inside. When the two cooling arc plates 27 are spliced ​​together to form a cylinder, the outlets of all the curved pipes 213 are connected to form a spiral tube inside this cylinder. This is a conventional design and will not be described in detail. For details, please refer to [link to relevant documentation]. Figure 6 The air guide pipe 212 is connected to a cooling arc plate 27 and connected to a bend pipe 213 to form one end of a spiral pipe. The cooling arc plate 27 has an exhaust pipe 214 on one side, which is connected to the other end of the spiral pipe. It should be noted that both the cooling arc plate 27 and the bend pipe 213 are made of aluminum, which has high heat exchange efficiency.

[0041] Through the design of the air-cooling section 2, during operation, the cylindrical box 16 is filled with clean water. Note that the circular plate 23 will not descend at this time. The air inlet at the top of the pump body 15 is used to draw gas for operation, while the gas is discharged from the air outlet on one side of the pump body 15 and enters the air outlet pipe 21, and then enters the fixed cylinder 22. The fixed cylinder 22 receives gas pressure, forcing the circular plate 23 to overcome the elastic element of the elastic telescopic cylinder 1 24, causing its telescopic end to contract, and the circular plate 23 descends. This allows the gas in the cylinder of the elastic telescopic cylinder 1 24 to enter the cylinder of the elastic telescopic cylinder 26 through the air supply pipe 25, forcing its telescopic end to extend. This causes the two cooling arc plates 27 to shift and fit together, ultimately clamping the pump body 15. During this process, the air guide pipe 1 29 slides down outside the air guide pipe 2 210, and the air guide pipe 4 212 slides horizontally on one side of the air guide pipe 3 211, cooperating with each other. When the two cooling arc plates... After the arc plate 27 is displaced and fitted, the first air pipe 29 can be vented through the second air pipe 210, continuously venting the gas inside the fixed cylinder 22. However, the gas output remains sufficient, and the circular plate 23 will not move upward. That is, the increase in air pressure and the mechanical characteristics of the circular plate 23 and the elastic telescopic air cylinder 24 are kept in balance. At this time, the gas discharged has a very fast airflow speed due to the smaller diameter. It enters the spiral tube formed by the curved pipe 213 through the four conduits, namely the first air pipe 29, the second air pipe 210, the third air pipe 211, and the fourth air pipe 212, for efficient convection cooling. The cooling arc plate 27 can absorb the heat of the pump body 15, while the curved pipe 213 absorbs the heat of the cooling arc plate 27. Finally, it is discharged through the exhaust pipe 214, realizing the use of the airflow absorbed by the vacuum pump to perform wind convection cooling on the pump body 15, avoiding the additional losses caused by using a motor fan.

[0042] The exhaust duct 214 is designed as a diffuser, and the exhaust duct 214 is located on one side of vertical plate 13 and vertical plate 22 to avoid obstruction of airflow.

[0043] By incorporating the diffuser design of the exhaust duct 214, the gas velocity increases as it passes through a narrow pipe, such as the spiral tube formed by the bend duct 213, which generates noise. The diffuser design allows the airflow to gradually diffuse and the velocity to decrease during exhaust, thereby effectively reducing noise generation and making the vacuum pump unit quieter during operation.

[0044] The water-cooled section 3 includes an annular heat exchange aluminum cylinder 31 wrapped around the outer wall of the motor 14. The outer wall of the aluminum cylinder 31 is connected to the top surface of the unit platform 1 through a row of heat exchange aluminum fins 32. The heat exchange tube 33 passes through the heat exchange aluminum fins 32. One end of the heat exchange tube 33 is connected to the upper part of the recovery box 34, and the other end of the heat exchange tube 33 passes through the support plate of the pump platform 11, connects to the side end of the cylindrical box 16 and is inserted into the interior. When the pump body 15 is working, the circular plate 23 is located below the inlet of the heat exchange tube 33, which facilitates the water to flow away from the heat exchange tube 33 and enter the recovery box 34.

[0045] With the design of the water-cooling section 3, the water-cooling system is in its initial state before the vacuum pump unit starts working. At this time, the circular plate 23 is located above the inlet of the heat exchange tube 33. This means that if water wants to flow into the heat exchange tube 33 at this time, it will be blocked by the circular plate 23 and will not be able to flow smoothly into the cylindrical box 16 or out to the recovery box 34. This design ensures that water will not flow or leak meaninglessly when the water-cooling system is not started.

[0046] Subsequently, due to the operation of the pump body 15, the circular plate 23 descends below the inlet of the heat exchange tube 33 under the action of the air-cooling section 2. This change in position allows cold water to flow in from the inlet of the heat exchange tube 33 and flow along the pipe. During the flow, the cold water exchanges heat with the heat exchange aluminum fins 32, absorbing the heat generated by the motor 14. After the heat exchange, the warm water flows out from the other end of the heat exchange tube 33 and is guided back to the recovery box 34 for recycling. The heat generated by the motor 14 is effectively transferred to the water cooling system and carried away through water circulation and heat exchange. This not only ensures the stable operation of the motor but also improves the efficiency and reliability of the entire vacuum pump unit. At the same time, because the water cooling system uses aluminum materials and high-efficiency heat exchange elements such as the heat exchange tube 33, the heat transfer is faster and more efficient.

[0047] The portion of the heat exchange tube 33 that passes through the heat exchange aluminum fin 32 has a serpentine design and repeatedly passes through the tube holes of the heat exchange aluminum fin 32.

[0048] By employing a serpentine design for the heat exchange tube 33 and repeatedly passing through the tube holes of the heat exchange aluminum fin 32, this layout greatly increases the contact area for heat exchange. When water flows through the heat exchange tube 33, it can more fully exchange heat with the heat exchange aluminum fin 32, thereby more effectively absorbing and carrying away the heat generated by the motor 14.

[0049] A ring plate 19 is fixed to the inner wall of the cylindrical box 16, and the bottom surface of the ring plate 19 is in contact with the top surface of the circular plate 23 when the pump body 15 is not working.

[0050] When the pump body 15 is not working, the bottom surface of the ring plate 19 and the top surface of the circular plate 23 are tightly fitted together, forming an effective sealing barrier, which helps to prevent water from leaking out from the gap between the heat exchange tube 33 and the cylindrical box 16.

[0051] Two arc-shaped seats 17 are installed on the top of the pump platform 11. The pump body 15 is placed and fitted into the arc-shaped opening at the top of the arc-shaped seat 17. Corresponding arc-shaped clamping blocks 18 are fixed to the top of the arc-shaped seat 17 by bolts. The pump body 15 is fixed between the top of the arc-shaped seat 17 and the corresponding arc-shaped clamping block 18. Note that there are insert rods at the upper and lower ends of the pump body 15 that are inserted into the arc-shaped seat 17 and the clamping block 18 to prevent it from rotating on its own. See details. Figure 5 .

[0052] The splicing design of the cooling arc plates 27 facilitates the installation of the pump body 15. During installation, the pump body 15 is placed in the arc seat 17 through the space between the two cooling arc plates 27, and then fixed with the clamp block 18. Finally, the motor 14 is installed and connected. It is very convenient. Note that when not in operation, the space between the two cooling arc plates 27 is sufficient for the pump body 15 to be installed.

[0053] A sealing gasket may be provided on the splicing surface of a cooling arc plate 27, without limitation, to improve the sealing performance after the two cooling arc plates 27 are spliced. The sealing gasket has a round opening corresponding to the outlet of the bent pipe 213. The splicing surface of the cooling arc plate 27 has an arc-shaped opening for engaging the gas inlet of the pump body 15. Note that the spiral tube formed by the docking of the outlet of the bent pipe 213 is located on one side of the arc-shaped opening. The air inlet of the pump body 15 is not necessarily limited to the top. The structural design of the cooling arc plate 27 can be adjusted according to the position of the air inlet without affecting the setting of the present invention. The same applies to the air outlet.

[0054] The inner wall of the first air duct 29 is connected to the sealing column 216 by four evenly spaced thin rods 215. The sealing column 216 can be inserted from the bottom of the second air duct 210, and the sealing column 216 is disengaged from the second air duct 210 and located below it when the two cooling arc plates 27 are displaced and attached.

[0055] See details Figure 11Through the design of the sealing column 216, under normal conditions, the sealing column 216 is firmly supported on the inner wall of the first gas guide tube 29 by four evenly spaced thin rods 215. At this time, the bottom of the sealing column 216 extends into the opening of the second gas guide tube 210, forming an effective sealing barrier that prevents gas from flowing from the first gas guide tube 29 into the second gas guide tube 210. When the two cooling arc plates 27 begin to shift and gradually come together, the sealing column 216 disengages from the second gas guide tube 210, allowing gas to enter. This provides an efficient and reliable gas flow control mechanism for vacuum pump units or other related equipment.

[0056] In summary, this invention uses air cooling for the pump body 15, which generates less heat, and water cooling for the motor 14, which generates more heat. This effectively reduces equipment wear, meets the equipment's operational requirements, and makes the vacuum pump unit operate more efficiently.

[0057] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-efficiency vacuum pump unit, characterized in that, include: A unit platform (1) is provided, on the top of which a motor (14) and a pump platform (11) are installed. A pump body (15) that is connected to the motor (14) is installed on the top of the pump platform (11), and vertical plates (13) are installed on both sides of the pump body (15) on the pump platform (11). A second vertical plate (12) is installed on the top of the unit platform (1). A cylindrical box (16) is provided on one side of the unit platform (1). An air-cooling section (2) is connected between the cylindrical box (16) and the air outlet of the pump body (15), and a water-cooling section (3) is connected between the cylindrical box (16) and the motor (14). The air-cooling unit (2) includes a circular plate (23) that slides up and down inside a cylindrical box (16). Two sealed elastic telescopic air cylinders (24) are connected between the bottom of the circular plate (23) and the bottom of the cylindrical box (16). A fixed cylinder (22) is connected to the top of the circular plate (23). The top opening of the fixed cylinder (22) is sealed and slidably inserted into the air outlet pipe (21) of the pump body (15). The fixed cylinder (22) has a first air guide pipe (29) at the lower end of one side. The first air guide pipe (29) passes through the top of the cylindrical box (16) and slides in a sealed manner outside the second air guide pipe (210). One end of the second air guide pipe (210) is fixedly connected to one side of the third air guide pipe (211). The third air guide pipe (211) is fixed to one side of the second vertical plate (12) and passes through the first vertical plate (13). At the same time, the third air guide pipe (211) is sealed and slides in a sealed manner on one side. Both cooling arc plates (27) have multiple curved pipes (213) inside. When the two cooling arc plates (27) are spliced ​​together to form a cylinder, the outlets of all the curved pipes (213) are connected to form a spiral pipe. The fourth air guide pipe (212) is connected to one end of the spiral pipe, and the other end of the spiral pipe is connected to the exhaust pipe (214). The first elastic telescopic air cylinder (24) has an air supply pipe (25) connected to one side of its cylinder body, which passes through the cylindrical box (16). The other end of the air supply pipe (25) is connected to the second elastic telescopic air cylinder (26). The second elastic telescopic air cylinder (26) is fixedly installed on the first vertical plate (13) and the second vertical plate (12) and is connected to the cooling arc plate (27). The two cooling arc plates (27) can be clamped on the outside of the pump body (15) and fit together. Two guide rods (28) are also fixed on the back of the cooling arc plate (27). The guide rods (28) slide through the vertical plate one (13) and the vertical plate two (12).

2. The high-efficiency vacuum pump unit as described in claim 1, characterized in that, The water-cooled section (3) includes an annular heat exchange aluminum cylinder block (31) wrapped around the outer wall of the motor (14). The outer wall of the annular heat exchange aluminum cylinder block (31) is connected to the top surface of the unit platform (1) through a row of heat exchange aluminum plates (32). The heat exchange tube (33) passes through the heat exchange aluminum plates (32). One end of the heat exchange tube (33) is connected to the upper part of the recovery box (34). The other end of the heat exchange tube (33) passes through the support plate of the pump platform (11) and is connected to the side end of the cylindrical box (16) and inserted into the interior.

3. The high-efficiency vacuum pump unit as described in claim 2, characterized in that, When the pump body (15) is in operation, the circular plate (23) is located below the inlet of the heat exchange tube (33).

4. The high-efficiency vacuum pump unit as described in claim 3, characterized in that, The portion of the heat exchange tube (33) that passes through the heat exchange aluminum plate (32) has a serpentine design and repeatedly passes through the tube holes of the heat exchange aluminum plate (32).

5. The high-efficiency vacuum pump unit as described in claim 2, characterized in that, The inner wall of the cylindrical box (16) is fixed with a ring plate (19), and the bottom surface of the ring plate (19) is in contact with the top surface of the circular plate (23) when the pump body (15) is not working.

6. The high-efficiency vacuum pump unit as described in claim 1, characterized in that, Two arc-shaped seats (17) are installed on the top of the pump platform (11). The pump body (15) is placed and fitted in the arc-shaped opening at the top of the arc-shaped seat (17). A corresponding arc-shaped clamp block (18) is fixedly installed on the top of the arc-shaped seat (17) by bolts. The pump body (15) is fixed between the top of the arc-shaped seat (17) and the corresponding arc-shaped clamp block (18).

7. The high-efficiency vacuum pump unit as described in claim 1, characterized in that, A sealing gasket is provided on the splicing surface of one of the cooling arc plates (27) to improve the sealing performance of the two cooling arc plates (27) after splicing.

8. The high-efficiency vacuum pump unit as described in claim 1, characterized in that, The inner wall of the first air duct (29) is connected to the sealing column (216) by four uniform thin rods (215). The sealing column (216) can be inserted from the bottom of the second air duct (210), and the sealing column (216) is separated from the second air duct (210) and located below it when the two cooling arc plates (27) are displaced and attached.

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