Efficient vacuum pump unit

Abstract

The invention relates to an efficient vacuum pump unit which comprises a unit table, a motor and a pump table are installed on the top of the unit table, a pump body in butt joint with the motor is installed on the top of the pump table, first vertical plates are installed on the portions, on the two sides of the pump body, of the pump table, a second vertical plate is installed on the top of the unit table, and a cylindrical box is arranged on one side of the unit table. The cylinder box and the air outlet of the pump body are connected with an air cooling part, and the cylinder box and the motor are connected with a water cooling part. Through the design of the air cooling part, the air cooling part carries out convection heat dissipation through air flow pumped by the vacuum pump, energy consumption and loss caused by using an extra motor fan are avoided, operation of the air cooling part is tightly connected with the working state of the pump body, and the air flow pressure generated when the pump body works automatically drives a mechanical structure of the air cooling part; and intelligent control of heat dissipation is realized.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum pump unit design, and in particular to a high-efficiency vacuum pump unit. Background Art

[0002] With the development of modern industry, vacuum pump units play an increasingly important role in many fields. However, many application scenarios require vacuum pumps to work continuously for a long time, which poses a severe challenge to the heat dissipation of the pump body and the motor. The most common one at present is the screw vacuum pump, which consists of two screw-shaped rotors rotating in a cylindrical pump body. The process gas passes through the pump chamber axially. There is no contact between the screws and between the pump body and the screws. The pump body is cylindrical to accommodate the rotation of the two screw-shaped rotors. However, the vacuum pump generates a lot of energy when it is in operation. When the vacuum pump runs for a long time, the pump body and the motor will generate a lot of heat. If this heat cannot be dissipated in time, it will cause the temperature of the pump body and the motor to rise, thereby affecting the performance and life of the vacuum pump. Specifically, high temperature will reduce the vacuum pump's suction capacity, increase the gas pressure, make it more difficult for the vacuum pump to extract the gas, and then affect the vacuum degree of the entire system. At the same time, high temperature may also accelerate the wear and aging of the internal parts of the pump body and the motor, shortening the service life of the vacuum pump.

[0003] At present, many vacuum pump units use water pumps and motor wind cooling to dissipate heat, which is also a common cooling method. However, these cooling methods have some obvious disadvantages. They all rely on additional electricity to drive. Water pump cooling requires additional electricity to drive the water pump to circulate water to remove heat. This not only increases additional power consumption, but may also lead to increased energy costs. Motor wind cooling relies on the airflow generated by the fan to remove heat. However, the operation of the fan also consumes electricity, which also increases the overall power loss 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 the present invention is to provide a high-efficiency vacuum pump unit, which achieves multiple beneficial effects such as efficient heat dissipation, intelligent control, compact structure, easy maintenance, and resource saving by designing an air-cooling part and a water-cooling part, bringing new technological breakthroughs and innovations to the field of vacuum pump units to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides a high-efficiency vacuum pump unit, comprising: a unit platform, a motor and a pump platform are installed on the top of the unit platform, a pump body connected to the motor is installed on the top of the pump platform, and the pump platform is installed with a vertical plate 1 on both sides of the pump body, and a vertical plate 2 is installed on the top of the unit platform, a cylindrical box is provided on one side of the unit platform, and the cylindrical box and the air outlet of the pump body are connected to an air cooling part, and the cylindrical box and the motor are connected to a water cooling part;

[0007] The air cooling part comprises a circular plate which is sealed and slides up and down inside the cylindrical box, the bottom of the circular plate and the bottom end of the cylindrical box are connected with two sealed elastic telescopic air cylinders, the top of the circular plate is connected with a fixed cylinder, and the top opening of the fixed cylinder is sealed and slidably inserted with an outlet pipe which is docked with the air outlet of the pump body;

[0008] An air guide pipe 1 is provided at the lower end of one side of the fixed cylinder, and the air guide pipe 1 passes through the top of the cylindrical box and seals and slides outside the air guide pipe 2. One end of the air guide pipe 2 is fixedly connected to the air guide pipe 3. The air guide pipe 3 is fixed to one side of the vertical plate 2 and passes through the vertical plate 1. At the same time, an air guide pipe 4 is sealed and slidably provided on one side of the air guide pipe 3. A plurality of bent pipes are provided inside the two cooling arc plates. When the two cooling arc plates are spliced ​​together to form a cylinder, the bent pipe outlets are butt-jointed to form a spiral pipe. The air guide pipe 4 is connected to one end of the spiral pipe, and the other end of the spiral pipe is connected to the exhaust pipe.

[0009] Optionally, one side of the cylinder of the elastic telescopic gas cylinder 1 is connected to an air pipe passing through the cylindrical box, and the other end of the air pipe is connected to the elastic telescopic gas cylinder 2. The elastic telescopic gas cylinder 2 is fixedly penetrated on the vertical plate 1 and the vertical plate 2 and connected to the cooling arc plate, and the two cooling arc plates can be clamped on the outside of the pump body and fit together, and the two cooling arc plates.

[0010] Optionally, two guide rods are fixed on the back of the cooling arc plate, and the guide rods slide through the vertical plate 1 and the vertical plate 2.

[0011] Optionally, the water cooling part 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 sheets, the heat exchange aluminum sheets pass through heat exchange tubes, one end of the heat exchange tube is connected to the upper part of the recovery box, and the other end is connected to the support plate passing through the pump platform, connected to the side end of the cylinder box and inserted into the interior.

[0012] Optionally, when the pump body is working, 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 plate is designed in a serpentine shape and repeatedly passes through the tube holes of the heat exchange aluminum plate.

[0014] Optionally, a ring plate is fixed on the inner wall of the cylindrical box, and the bottom surface of the ring plate fits 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 the pump body is placed and fits in the arc-shaped opening on the top of the arc-shaped seat, and the pump body and the top of the arc-shaped seat are fixed with corresponding arc-shaped clamp blocks by bolts for fixing.

[0016] Optionally, a sealing gasket is provided on the joint surface of one cooling arc plate to ensure the sealing of the joint of two cooling arc plates.

[0017] Optionally, an arc-shaped opening is provided on the joint surface of the cooling arc plate for clamping the gas inlet of the pump body.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention adopts the design of the air cooling part, which uses the air flow extracted by the vacuum pump itself for convection heat dissipation, avoiding the energy consumption and loss caused by the use of an additional motor fan. Its operation is closely linked to the working state of the pump body. The air flow pressure generated when the pump body is working automatically drives the mechanical structure of the air cooling part, realizing intelligent control of heat dissipation;

[0020] 2. The water-cooling part 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 the heat exchange aluminum plate. Secondly, the water-cooling part is driven by the air-cooling part to operate without using an additional water pump power supply, and has the advantages of efficient heat dissipation, quietness and stability.

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

[0022] 4. The present invention adopts a blocking column design. Under normal conditions, the blocking column is firmly supported on the inner wall of air duct one by four uniform thin rods. At this time, the bottom of the blocking column extends into the opening of air duct two, forming an effective blocking barrier, preventing the gas from flowing from air duct one into air duct two. When the two cooling arc plates begin to shift and gradually fit together, the blocking column detaches from air duct two to allow the gas to enter, thereby providing a high-efficiency and reliable gas flow control mechanism for the vacuum pump unit or other related equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 The present invention is a high-efficiency vacuum pump unit of the overall three-dimensional Figure 1 ;

[0025] Figure 2 The present invention is a high-efficiency vacuum pump unit of the overall three-dimensional Figure 2 ;

[0026] Figure 3 A partial three-dimensional diagram of a high-efficiency vacuum pump unit of the present invention Figure 1 ;

[0027] Figure 4 A partial three-dimensional diagram of a high-efficiency vacuum pump unit of the present invention Figure 2 ;

[0028] Figure 5 A partial three-dimensional diagram of a high-efficiency vacuum pump unit of the present invention Figure 3 ;

[0029] Figure 6 A three-dimensional diagram of a bent pipe of a high-efficiency vacuum pump unit of the present invention;

[0030] Figure 7 A three-dimensional diagram of the air cooling part of a high-efficiency vacuum pump unit of the present invention;

[0031] Figure 8 A high-efficiency vacuum pump unit of the present invention Figure 7 Enlarged view of point A in the middle;

[0032] Fig. 9 A three-dimensional diagram of a high-efficiency vacuum pump unit of the present invention;

[0033] Fig.10 A cross-sectional perspective view of a cooling arc plate of a high-efficiency vacuum pump unit of the present invention;

[0034] Fig.11 This is a front cross-sectional view of the connection between air duct one and air duct two of a high-efficiency vacuum pump unit of the present invention.

[0035] In the figure:

[0036] 1. Unit table; 11. Pump table; 12. Vertical plate 2; 13. Vertical plate 1; 14. Motor; 15. Pump body; 16. Cylinder box; 17. Arc seat; 18. Clamp block; 19. Ring plate; 2. Air cooling unit; 21. Air outlet pipe; 22. Fixed cylinder; 23. Round plate; 24. Elastic telescopic air cylinder 1; 25. Air supply pipe; 26. Elastic telescopic air cylinder 2; 27. Cooling arc plate; 28. Guide rod; 29. ​​Air guide pipe 1; 210. Air guide pipe 2; 211. Air guide pipe 3; 212. Air guide pipe 4; 213. Bending pipe; 214. Exhaust pipe; 215. Thin rod; 216. Blocking column; 3. Water cooling unit; 31. Aluminum cylinder block; 32. Heat exchange aluminum sheet; 33. Heat exchange pipe; 34. Recovery box. DETAILED DESCRIPTION

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

[0038] like Figure 1-Figure 11 As shown, a high-efficiency vacuum pump unit of the present invention comprises: a unit table 1, a motor 14 and a pump table 11 are installed on the top of the unit table 1, a pump body 15 connected to the motor 14 is installed on the top of the pump table 11, and vertical plates 13 are installed on both sides of the pump body 15 of the pump table 11, and vertical plates 12 are installed on one side of the vertical plates 13 on the top of the unit table 1, and a cylindrical box 16 is provided on one side of the unit table 1, and the cylindrical box 16 and the air outlet of the pump body 15 are connected to the air cooling part 2, and the cylindrical box 16 and the motor 14 are connected to the water cooling part 3.

[0039] The air cooling part 2 includes a circular plate 23 which is sealed and slides up and down inside the cylindrical box 16, cooling water is installed above the circular plate 23, and the bottom of the circular plate 23 is connected to the bottom end of the cylindrical box 16 with two sealed elastic telescopic air cylinders 24. It should be noted that the telescopic end of the elastic telescopic air cylinder 24 is connected to the circular plate 23, and the fixed end, that is, the air cylinder is docked at the bottom end of the cylindrical box 16. The top of the circular plate 23 is connected to a fixed cylinder 22, and an air outlet pipe 21 is inserted into the top opening of the fixed cylinder 22 in a sealed and sliding manner. The air outlet pipe 21 is docked with 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 which passes through the cylindrical box 16, and the other end of the air supply pipe 25 is docked with an elastic telescopic air cylinder 26. The elastic telescopic air cylinder 26 is fixedly penetrated on the vertical plate 13 and the vertical plate 2 12 and docked with the cooling arc plate 27, and the two cooling arc plates 27 can be clamped on the outside of the pump body 15 and fit together, and the two Cooling arc plate 27, note that the telescopic end of the elastic telescopic gas cylinder 26 is connected to the cooling arc plate 27, and the fixed end, that is, the gas cylinder is fixed in the corresponding circular openings of the vertical plate 13 and the vertical plate 2 12. 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 2 12. Note that the elastic telescopic gas cylinder 1 24 and the elastic telescopic gas cylinder 2 26 are both existing designs, mainly composed of a cylinder body, an elastic element and a telescopic end. The cylinder body is the main structure of the gas cylinder, usually made of metal or high-strength plastic and other materials, 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, cooperates with the telescopic end to provide a telescopic function. When the gas pressure inside the gas cylinder changes, the elastic element can be deformed, thereby driving the telescopic end to perform telescopic movement in the internal cylinder, which will not be described in detail here;

[0040] An air guide pipe 29 is provided at the lower end of one side of the fixed cylinder 22. The air guide pipe 29 passes through the top of the cylindrical box 16 and slides on the outside of the air guide pipe 2 210 in a sealed manner. One end of the air guide pipe 210 is fixedly connected to the air guide pipe 3 211. The air guide pipe 3 211 is fixed to one side of the vertical plate 2 12 and passes through the vertical plate 1 13. At the same time, an air guide pipe 4 212 is sealed and slidably provided on one side of the air guide pipe 3 211. A plurality of curved pipes 213 are provided inside the two cooling arc plates 27. 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 located inside the cylinder. This is an existing conventional design and will not be described in detail. For details, see Figure 6 The air guide pipe 212 is connected to a cooling arc plate 27 and connected to a bent pipe 213 to form one end of a spiral tube. An exhaust pipe 214 is provided on one side of the cooling arc plate 27 and connected to the other end of the spiral tube. It should be noted that the cooling arc plate 27 and the bent pipe 213 are both made of aluminum and have high heat exchange efficiency.

[0041] Through the design of the air cooling part 2, when working, the cylindrical box 16 is filled with clean water. It should be noted that the circular plate 23 will not drop at this time. The air inlet on the top of the pump body 15 is used to extract gas for working, and 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 the gas pressure, forcing the circular plate 23 to overcome the elastic element of the elastic telescopic air cylinder 1 24 to shrink its telescopic end, and the circular plate 23 drops, so that the cylinder gas in the elastic telescopic air cylinder 1 24 enters the cylinder of the elastic telescopic air cylinder 2 26 through the air delivery pipe 25, forcing its telescopic end to stretch, so that the two cooling arc plates 27 are displaced and fitted to finally clamp the pump body 15, and in this process, the air guide pipe 1 29 slides down the outside of the air guide pipe 210, and the air guide pipe 4 212 slides horizontally on the side of the air guide pipe 3 211, cooperating with each other. When the two cooling arc plates 27 are displaced and fitted, the pump body 15 is finally clamped. In this process, the air guide pipe 1 29 slides down on the outside of the air guide pipe 210, and the air guide pipe 4 212 slides horizontally on the side of the air guide pipe 3 211, cooperating with each other. After the arc plate 27 is displaced and fitted, the air guide tube 1 29 can be ventilated in the air guide tube 2 210, and the gas inside the fixed cylinder 22 will be discharged continuously, but the gas output remains sufficient, and the circular plate 23 will not move up, that is, the increase in air pressure is balanced with the mechanical properties of the circular plate 23 and the elastic telescopic air cylinder 1 24. At this time, the discharged gas has a smaller caliber and a very fast air flow speed. It enters the spiral tube formed by the curved tube 213 through four ducts, namely, the air guide tube 1 29, the air guide tube 210, the air guide tube 3 211 and the air guide tube 4 212, for efficient convection heat dissipation. The cooling arc plate 27 can absorb the heat of the pump body 15, and the curved tube 213 absorbs the heat of the cooling arc plate 27, and finally it is discharged through the exhaust pipe 214, thereby realizing the use of the airflow absorbed by the vacuum pump to perform wind convection heat dissipation on the pump body 15, avoiding the extra loss caused by the use of the motor fan.

[0042] The exhaust duct 214 is designed as a diffuser, and is located on one side of the vertical plate 13 and the vertical plate 2 12 to prevent the air from being blocked.

[0043] Through the diffuser design of the exhaust pipe 214, when the gas passes through a narrow pipe such as the spiral tube formed by the curved pipe 213, its flow rate will increase, thereby generating noise. The design of the diffuser allows the airflow to gradually diffuse when discharged, and the flow rate is reduced, thereby effectively reducing the generation of noise and making the vacuum pump unit quieter when working.

[0044] The water cooling part 3 includes an annular heat exchange aluminum cylinder block 31 wrapped around the outer wall of the motor 14. The outer wall of the aluminum cylinder block 31 is connected to the top surface of the unit platform 1 through a row of heat exchange aluminum sheets 32. The heat exchange aluminum sheets 32 pass through the heat exchange tubes 33. One end of the heat exchange tubes 33 is connected to the upper end of the recovery box 34, and the other end 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 water to flow away from the heat exchange tube 33 and enter the recovery box 34.

[0045] Through the design of the water cooling part 3, before the vacuum pump unit starts working, the water cooling system is in the initial state. At this time, the circular plate 23 is located above the inlet of the heat exchange tube 33, which 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 cannot smoothly flow into the cylinder box 16 or flow out to the recovery box 34. This design ensures that when the water cooling system is not started, water will not flow or leak meaninglessly;

[0046] Then, due to the operation of the pump body 15, the circular plate 23 drops to below the inlet of the heat exchange tube 33 under the action of the air cooling part 2. This position change 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 sheet 32 ​​and absorbs 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 taken away through water circulation and heat exchange, which 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, since the water cooling system uses high-efficiency heat exchange elements such as aluminum materials and heat exchange tubes 33, heat transfer is faster and more efficient.

[0047] The portion of the heat exchange tube 33 that passes through the heat exchange aluminum sheet 32 ​​is designed in a serpentine shape and repeatedly passes through the tube holes of the heat exchange aluminum sheet 32 ​​.

[0048] The heat exchange tube 33 adopts a serpentine design and repeatedly passes through the tube holes of the heat exchange aluminum plate 32. This layout greatly increases the contact area of ​​heat exchange. When water flows through the heat exchange tube 33, it can more fully exchange heat with the heat exchange aluminum plate 32, thereby more effectively absorbing and taking away the heat generated by the motor 14.

[0049] 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.

[0050] When the pump body 15 is not working, the bottom surface of the ring plate 19 fits tightly against the top surface of the circular plate 23 to form an effective sealing barrier, which helps prevent water from leaking out of 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 on the arc-shaped opening on the top of the arc-shaped seat 17 and fits in. The pump body 15 and the top of the arc-shaped seat 17 are fixed by bolts and corresponding arc-shaped clamp blocks 18 are installed for fixing. It should be noted that the upper and lower ends of the pump body 15 have rods inserted into the arc-shaped seat 17 and the clamp block 18 to prevent it from rotating itself. For details, see Figure 5 .

[0052] In this way, the splicing design of the cooling arc plate 27 can facilitate the installation of the pump body 15. During installation, it is passed through the space between the two cooling arc plates 27 and placed on the arc seat 17, and then fixed with the clamp block 18. Finally, the motor 14 is installed and connected. It is very convenient. Note that when not working, the spacing between the two cooling arc plates 27 is sufficient for the installation of the pump body 15.

[0053] A sealing gasket may be provided on the joint surface of a cooling arc plate 27 without limitation, which is used for sealing after the two cooling arc plates 27 are spliced ​​together, and the sealing gasket is provided with a circular opening corresponding to the outlet of the bent tube 213, and an arc-shaped opening is provided on the joint surface of the cooling arc plate 27, which is used to clamp the gas inlet of the pump body 15. It should be noted that the spiral tube formed by the docking of the outlet of the bent tube 213 is located on one side of the arc-shaped opening, and the air inlet of the pump body 15 does not have to be 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, and the same is true for the air outlet.

[0054] The inner wall of the air duct 1 29 is connected to the blocking column 216 through four uniform thin rods 215. The blocking column 216 can be inserted from the bottom of the air duct 210, and the blocking column 216 is separated from the air duct 210 and located below it when the two cooling arc plates 27 are displaced and fitted.

[0055] See Fig.11 Through the design of the blocking column 216, under normal conditions, the blocking column 216 is firmly supported on the inner wall of the air duct 1 29 by four uniform thin rods 215. At this time, the bottom of the blocking column 216 extends into the opening of the air duct 210, forming an effective blocking barrier, preventing the gas from flowing from the air duct 1 29 into the air duct 210. When the two cooling arc plates 27 begin to move and gradually fit together, the blocking column 216 detaches from the air duct 210 to allow the gas to enter, providing a high-efficiency and reliable gas flow control mechanism for the vacuum pump unit or other related equipment.

[0056] In summary, the present invention implements air cooling for the pump body 15 with less heat and water cooling for the motor 14 with more heat, thereby effectively reducing equipment loss, meeting equipment working requirements, and making the vacuum pump unit operate more efficiently.

[0057] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A high-efficiency vacuum pump unit, characterized in that: include: A machine platform (1), wherein a motor (14) and a pump platform (11) are installed on the top of the machine platform (1), a pump body (15) connected to the motor (14) is installed on the top of the pump platform (11), and a vertical plate (13) is installed on both sides of the pump body (15) of the pump platform (11), and a vertical plate (2) is installed on the top of the machine platform (1), and a cylindrical box (16) is provided on one side of the machine platform (1), and an air cooling part (2) is connected to the air outlet of the cylindrical box (16) and the pump body (15), and a water cooling part (3) is connected to the cylindrical box (16) and the motor (14); The air cooling part (2) comprises a circular plate (23) which is sealed and slides up and down inside the cylindrical box (16); the bottom of the circular plate (23) is connected to the bottom end of the cylindrical box (16) with two sealed elastic telescopic air cylinders (24); the top of the circular plate (23) is connected to a fixed cylinder (22); the top opening of the fixed cylinder (22) is sealed and slidably inserted with an air outlet pipe (21) which is connected to the air outlet of the pump body (15); An air guide pipe 1 (29) is provided at the lower end of one side of the fixed cylinder (22). The air guide pipe 1 (29) passes through the top of the cylindrical box (16) and slides sealably on the outside of the air guide pipe 2 (210). One end of the air guide pipe 2 (210) is fixedly connected to one side of the air guide pipe 3 (211). The air guide pipe 3 (211) is fixed to one side of the vertical plate 2 (12) and passes through the vertical plate 1 (13). At the same time, an air guide pipe 4 (212) is sealed and slidably provided on one side of the air guide pipe 3 (211). A plurality of curved pipes (213) are provided inside the two cooling arc plates (27). When the two cooling arc plates (27) are spliced ​​together to form a cylinder, the outlets of all the curved pipes (213) are butt-jointed to form a spiral pipe. The air guide pipe 4 (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).

2. A high-efficiency vacuum pump unit as claimed in claim 1, characterized in that: One side of the cylinder body of the elastic telescopic gas cylinder 1 (24) is connected to an air delivery pipe (25) passing through the cylindrical box (16), and the other end of the air delivery pipe (25) is connected to the elastic telescopic gas cylinder 2 (26). The elastic telescopic gas cylinder 2 (26) is fixedly installed on the vertical plate 1 (13) and the vertical plate 2 (12) and connected to the cooling arc plate (27), and the two cooling arc plates (27) can be clamped on the outside of the pump body (15) and fit together.

3. A high-efficiency vacuum pump unit as claimed in claim 2, characterized in that: Two guide rods (28) are also fixed on the back of the cooling arc plate (27), and the guide rods (28) pass through the vertical plate 1 (13) and the vertical plate 2 (12) to slide.

4. A high-efficiency vacuum pump unit as claimed in claim 1, characterized in that: The water cooling part (3) includes an annular heat exchange aluminum cylinder block (31) wrapped around the outer wall of the motor (14); the outer wall of the aluminum cylinder block (31) is connected to the top surface of the unit platform (1) through a row of heat exchange aluminum sheets (32); the heat exchange aluminum sheets (32) pass through the heat exchange tubes (33); one end of the heat exchange tubes (33) is connected to the upper end of the recovery box (34); the other end 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.

5. A high-efficiency vacuum pump unit as claimed in claim 4, 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).

6. A high-efficiency vacuum pump unit as claimed in claim 4, characterized in that: The portion of the heat exchange tube (33) passing through the heat exchange aluminum sheet (32) is designed in a serpentine shape and repeatedly passes through the tube holes of the heat exchange aluminum sheet (32).

7. A high-efficiency vacuum pump unit as claimed in claim 1, 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.

8. A high-efficiency vacuum pump unit as claimed in claim 7, characterized in that: Two arc-shaped seats (17) are installed on the top of the pump platform (11), and the pump body (15) is placed and fits in the arc-shaped opening on the top of the arc-shaped seat (17). The pump body (15) and the top of the arc-shaped seat (17) are fixed with corresponding arc-shaped clamp blocks (18) by bolts for fixing.

9. A high-efficiency vacuum pump unit as claimed in claim 7, characterized in that: A sealing gasket is provided on the joint surface of one cooling arc plate (27) to ensure the sealing of the two cooling arc plates (27) after being joined.

10. A high-efficiency vacuum pump unit as claimed in claim 1, characterized in that: The inner wall of the air guide tube 1 (29) is connected to the blocking column (216) through four uniform thin rods (215). The blocking column (216) can be inserted from the bottom of the air guide tube 2 (210), and the blocking column (216) is separated from the air guide tube 2 (210) and located below it when the two cooling arc plates (27) are displaced and fitted.

Images