Vacuum pump circulating water recycling device on production line

Abstract

The utility model discloses a vacuum pump circulating water recycling device on a production line, which relates to the technical field of vacuum pump circulating water recycling devices and comprises a vacuum pump main body, a cooling component, a water tank and a filtering component. According to the cooling device, the cooling assembly is arranged, the cooling pipe is arranged to be in a wave shape and has a longer pipeline length, so that the cooling efficiency is improved, in addition, due to the arrangement of the water tank, cooled water enters the water tank, the cooled water is further stored and stood, the water tank can store the cooled water, and the cooling efficiency is improved. In addition, through the arrangement of ventilation boxes, the two ventilation boxes guide air to flow, rotation of fan blades generates air flow, the air flow enters the cooling box through openings of the ventilation boxes, the cooling pipe conducts heat exchange more quickly, hot water in the cooling pipe is cooled, and the cooling effect is improved. And heat in the box body can be taken away and dissipated to the external environment.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pump circulating water reuse devices, in particular to a vacuum pump circulating water reuse device on a production line. Background Art

[0002] A vacuum pump is a key piece of industrial equipment that uses mechanical, physical, chemical, or physicochemical methods to evacuate a container, thereby creating, improving, and maintaining a vacuum state within it. The operating principles of vacuum pumps can be broadly categorized into two types: gas capture pumps and gas transfer pumps. The former primarily captures gas molecules through various methods to reduce the pressure within the container, while the latter focuses on transferring gas from one point to another to establish or maintain a vacuum. Vacuum pumps come in a variety of structures and types, including water ring pumps, reciprocating pumps, sliding valve pumps, rotary vane pumps, Roots pumps, and diffusion pumps. These different types of vacuum pumps play a vital role in industrial production and are widely used in a variety of fields, including metallurgy, chemicals, food processing, and electronic coating. For example, in the metallurgical industry, vacuum pumps are used in key processes such as vacuum melting and vacuum degassing, ensuring smooth production and consistent product quality. In recent years, with the continuous advancement of science and technology and the rapid development of industry, vacuum pump technology has continued to innovate and improve.

[0003] The traditional vacuum pump circulating water reuse device is an industrial equipment designed to improve water resource utilization efficiency and reduce wastewater discharge. Through a series of treatment and circulation processes, the device collects, purifies, cools and processes the working water generated during the operation of the vacuum pump, and then reuses it in the working process of the vacuum pump, thereby realizing the recycling of working water.

[0004] Although the traditional vacuum pump circulating water system has achieved the recycling of water resources to a certain extent, its cooling efficiency often becomes a key factor restricting the improvement of system performance when faced with the needs of efficient and continuous production.

[0005] Traditional vacuum pump circulating water reuse devices usually rely on natural convection or simple mechanical circulation to achieve water cooling. This cooling method can meet the needs when the vacuum pump load is low and the ambient temperature is suitable. However, with the expansion of production scale and the increase of vacuum pump working intensity, the temperature of the circulating water tends to rise rapidly, resulting in a decrease in cooling effect. Utility Model Content

[0006] The purpose of the utility model is to provide a vacuum pump circulating water reuse device on a production line to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] The cooling unit is connected to the cooling water tank, and the cooling water tank is connected to the cooling water tank by the cooling water supply pipe.

[0009] The above technical solution is adopted. In the device of this solution, during the operation, the filter component in the device filters inward and adds water through the water inlet pipe to add water to the vacuum pump body 1. Due to factors such as mechanical friction and gas compression, a certain amount of heat will be generated, which will cause the circulating water temperature in the device to become high. The heated water enters the cooling box through the outlet pipe and is sent to the cooling box. The heated water is cooled by the cooling pipe. The cooled water flows into the water tank through the return pipe and is then discharged into the water inlet pipe through the circulation pipe, thereby being repeatedly recycled. Through the setting of the cooling component, the cooling pipe is set to a wavy shape, so that the cooling pipe has a longer pipe length and a larger surface area than the straight type, which means that the heated water can exchange heat with the pipe wall more fully, thereby improving the cooling efficiency. In addition, through the setting of the water tank, the cooled water enters the water tank, and the cooled water is further stored and allowed to stand, so that the water tank can store the cooled water and further stand it. During the standing process, suspended matter and impurities in the water are precipitated.

[0010] A further improvement of the technical solution of the present utility model is that: two ventilation boxes are fixedly installed on both sides of the cooling box, motors are fixedly installed on the sides of the two ventilation boxes, cross bars are fixedly installed inside the two ventilation boxes, and a number of gears are rotatably installed on the end of the cross bar away from the cooling box. The output end of the motor is meshed with the several gears through a conveyor belt, and fan blades are fixedly installed on the end of the gear away from the cooling box.

[0011] The above-mentioned technical solution is adopted. In this solution, the two ventilation boxes guide the air flow through the setting of ventilation boxes. A cross bar is fixedly installed inside each ventilation box. This cross bar not only plays a supporting role, but also serves as the installation base of the fan blades. Several gears are rotatably installed on the end of the cross bar away from the cooling box. These gears are engaged with the output end of the motor through a conveyor belt. When the motor starts, it will drive the gears to rotate through the conveyor belt. The rotation of the gears further drives the fan blades fixed on the end away from the cooling box to rotate. The rotation of the fan blades generates a strong airflow. These airflows enter the cooling box through the opening of the ventilation box, allowing the cooling pipe to exchange heat more quickly to cool the hot water inside the cooling pipe, helping the heat in the box to be taken away and dissipated to the external environment.

[0012] A further improvement of the technical solution of the present invention is that an air guide plate is fixedly mounted on the inner side wall of the cooling box, and a certain distance is set between the bottom surface of the air guide plate and the bottom surface of the cooling box.

[0013] The above technical solution is adopted, in which the air flow generated in the ventilation box is guided by the provision of an air guide plate, so that the air flow can cool the cooling pipe more effectively.

[0014] A further improvement of the technical solution of the present utility model is that: a water suction pipe is fixedly installed on the filter component, a water pump is fixedly installed on the upper end of the base, the end of the water suction pipe away from the filter component is fixedly connected to the input end of the water pump, and a water spray pipe is fixedly installed on the output end of the water pump. The water spray pipe passes through the side wall of the cooling box and extends to the cooling box where a plurality of atomizing nozzles are fixedly installed.

[0015] The above technical solution is adopted, in which the cooling pipe is sprayed with an atomizing nozzle, and the wind force of the ventilation box is used to distribute the atomized water more evenly around the cooling pipe, thereby cooling the cooling pipe more effectively.

[0016] A further improvement of the technical solution of the present invention is that a water collecting pipe is provided at the bottom of the cooling box, a one-way valve is provided inside the water collecting pipe, and the bottom surface of the cooling box is provided with a slope, with the water collecting pipe being the lowest point.

[0017] The above-mentioned technical solution is adopted. In this solution, the water collecting pipe is set up so that the residual water flowing down or evaporating after the atomizing nozzle is sprayed is discharged. In order to ensure that the water can flow smoothly into the water collecting pipe, the bottom surface of the cooling box is set to have a certain slope, and the position of the water collecting pipe is set at the lowest point of the cooling box. Therefore, the setting of the water collecting pipe prevents the residual water flowing down or evaporating after the atomizing nozzle from accumulating in the cooling box, and finally flows into the output pipe and enters the cooling pipe along the outlet pipe for cooling. The setting of the one-way valve prevents the water in the outlet pipe connected to the lower end of the water collecting pipe from flowing into the cooling box.

[0018] A further improvement of the technical solution of the utility model is that a water temperature meter is provided on the return water pipe.

[0019] By adopting the above technical solution, the water temperature meter in the solution can monitor the water temperature in the return pipe in real time, which is crucial for understanding the operating status of the cooling component. By monitoring the water temperature, possible problems in the cooling component can be discovered in time, so that corresponding measures can be taken to make adjustments.

[0020] A further improvement of the technical solution of the utility model is that: a plurality of connecting pipes are staggered.

[0021] The above technical solution is adopted, in which the connecting pipes are staggered to slow down the flow of water in the cooling pipe. Slowing down the flow rate can extend the residence time of the fluid in the cooling pipe, allowing it to more fully absorb heat and transfer it to the cooling pipe. At the same time, the space in the cooling box can be fully utilized.

[0022] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0023] 1. The utility model provides a vacuum pump circulating water recycling device on a production line. Through the setting of the cooling component, the cooling pipe is set to a wave shape, so that the cooling pipe has a longer pipe length and a larger surface area than the straight type. This means that the heated water can exchange heat with the pipe wall more fully, thereby improving the cooling efficiency. In addition, through the setting of the water tank, the cooled water enters the water tank, and the cooled water is further stored and allowed to stand, so that the water tank can store the cooled water and further stand it for treatment. During the standing process, suspended matter and impurities in the water are precipitated. In addition, through the setting of the ventilation box, the two ventilation boxes guide the air Air flow, inside each ventilation box, a cross bar is fixedly installed, this cross bar not only plays a supporting role, but also serves as the installation base of the fan blades. A number of gears are rotatably installed on the end of the cross bar away from the cooling box, and these gears are meshed with the output end of the motor through a conveyor belt. When the motor starts, it will drive the gears to rotate through the conveyor belt. The rotation of the gears further drives the fan blades fixed on the end away from the cooling box to rotate. The rotation of the fan blades generates a strong airflow, which enters the cooling box through the opening of the ventilation box, allowing the cooling pipe to exchange heat more quickly to cool the hot water inside the cooling pipe, helping the heat in the box to be taken away and dissipated to the external environment.

[0024] 2. The utility model provides a vacuum pump circulating water recycling device on a production line. Through the setting of an air guide plate, the airflow generated in the ventilation box is guided, so that the airflow can cool the cooling pipe more effectively. In addition, through the setting of an atomizing nozzle, the cooling pipe is atomized and sprayed, and the atomized water is distributed more evenly around the cooling pipe in conjunction with the wind force of the ventilation box, so that the cooling pipe is cooled more effectively.

[0025] 3. The utility model provides a vacuum pump circulating water reuse device on a production line. Through the setting of a water collecting pipe, the residual water that flows down or evaporates after spraying by the atomizing nozzle is discharged. In order to ensure that the water can flow smoothly into the water collecting pipe, the bottom surface of the cooling box is set to have a certain slope, and the position of the water collecting pipe is set at the lowest point of the cooling box. Therefore, the setting of the water collecting pipe prevents the residual water that flows down or evaporates after spraying by the atomizing nozzle from accumulating in the cooling box, and finally flows into the output pipe and enters the cooling pipe along the outlet pipe for cooling. The setting of the one-way valve prevents the water in the outlet pipe connected to the lower end of the water collecting pipe from flowing into the interior of the cooling box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the first overall structure of the utility model;

[0028] Figure 2 This is a second overall structural diagram of the present utility model;

[0029] Figure 3 This is a schematic diagram of the cooling box structure of the present utility model;

[0030] Figure 4 This is a schematic structural diagram of the filter component and vacuum pump body 1 of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the cooling box of the present utility model;

[0032] Figure 6 This is a schematic diagram of the cross-sectional structure of the cooling pipe of the present invention;

[0033] Figure 7 This is a schematic diagram of the fan blades, gears and transmission belt structure of the utility model.

[0034] In the figure: 1. Vacuum pump body; 2. Placement tray; 3. Water inlet pipe; 4. Water outlet pipe; 5. Cooling box; 6. Cooling pipe; 7. Connecting pipe; 8. Return pipe; 9. Water tank; 10. Waste water pipe; 11. Circulation pipe; 12. First adjustable one-way valve; 13. Filter element; 14. Second adjustable one-way valve; 15. Ventilation box; 16. Motor; 17. Cross bar; 18. Gear; 19. Conveyor belt; 20. Fan blade; 21. Wind guide plate; 22. Water collecting pipe; 23. Suction pipe; 24. Water spray pipe; 25. Atomizing nozzle; 26. Water thermometer. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the embodiments:

[0036] Example 1

[0037] like Figure 1-Figure 7 As shown, the utility model provides a vacuum pump circulating water reuse device on a production line, comprising a vacuum pump body 1, a cooling assembly, a water tank 9 and a filter member 13. A placement tray 2 is fixedly installed at the lower end of the vacuum pump body 1; the cooling assembly comprises a water inlet pipe 3 and a water outlet pipe 4. A cooling box 5 is fixedly installed at the upper end of the water outlet pipe 4. The water outlet pipe 4 passes through the cooling box 5 and is fixedly installed with a plurality of cooling pipes 6. The plurality of cooling pipes 6 are arranged in a wavy shape. A plurality of connecting pipes 7 are fixedly installed between the plurality of cooling pipes 6. The end of the cooling pipe 6 away from the water outlet pipe 4 passes through the cooling box 5 and is fixedly installed with a return pipe 8. The lower end of the cooling assembly Several support columns are fixedly installed; the water tank 9 is fixedly connected to the end of the return pipe 8 away from the cooling box 5, the waste water pipe 10 is fixedly installed at the bottom of the water tank 9, and the circulation pipe 11 is fixedly installed on the side end of the water tank 9. The output end of the circulation pipe 11 is fixedly connected to the water inlet pipe 3, and the end of the water inlet pipe 3 close to the circulation pipe 11 is fixedly installed with a first adjustable one-way valve 12; the filter component 13 is fixedly installed at the end of the water inlet pipe 3 away from the vacuum pump body 1, and the filter component 13 is connected to the water inlet pipe 3 through an adapter, and a second adjustable one-way valve 14 is provided on the adapter. The filter component 13 is fixedly installed on the upper end of the base.

[0038] In this embodiment, during the operation of the device, the filter assembly in the device filters inward and adds water through the water inlet pipe 3 to add water to the vacuum pump body 1. Due to factors such as mechanical friction and gas compression, a certain amount of heat is generated, which will cause the circulating water temperature in the device to rise. The heated water enters the cooling box 5 through the outlet pipe 4 and is sent to the cooling box 5. The heated water is cooled by the cooling pipe 6. The cooled water flows into the water tank 9 through the return pipe 8 and is then discharged into the water inlet pipe 3 through the circulation pipe 11, thereby being repeatedly recycled. Through the setting of the cooling assembly, the cooling pipe 6 is set to a wavy shape, so that the cooling pipe 6 has a longer pipe length and a larger surface area than a straight type. This means that the heated water can exchange heat with the pipe wall more fully, thereby improving the cooling efficiency. In addition, through the setting of the water tank 9, the cooled water enters the water tank 9 and is further stored and allowed to stand, so that the water tank 9 can store the cooled water and further stand it. During the standing process, suspended matter and impurities in the water are precipitated.

[0039] like Figure 5 and Figure 6 As shown, in this embodiment, preferably, two ventilation boxes 15 are fixedly installed on both sides of the cooling box 5, motors 16 are fixedly installed on the sides of the two ventilation boxes 15, and cross bars 17 are fixedly installed inside the two ventilation boxes 15. A plurality of gears 18 are rotatably installed on the end of the cross bar 17 away from the cooling box 5, and the output end of the motor 16 is meshed with the plurality of gears 18 through a conveyor belt 19, and a fan blade 20 is fixedly installed on the end of the gear 18 away from the cooling box 5.

[0040] In this embodiment, through the setting of the ventilation box 15, the two ventilation boxes 15 guide the air flow. Inside each ventilation box 15, a cross bar 17 is fixedly installed. This cross bar 17 not only plays a supporting role, but also serves as the installation base of the fan blades 20. A number of gears 18 are rotatably installed on the end of the cross bar 17 away from the cooling box 5. These gears 18 are engaged with the output end of the motor 16 through a conveyor belt 19. When the motor 16 is started, it will drive the gears 18 to rotate through the conveyor belt 19. The rotation of the gears 18 further drives the fan blades 20 fixed at the end away from the cooling box 5 to rotate. The rotation of the fan blades 20 generates a strong airflow. These airflows enter the cooling box 5 through the opening of the ventilation box 15, so that the cooling pipe 6 can perform heat exchange more quickly to cool the hot water inside the cooling pipe 6, helping the heat in the box to be taken away and dissipated to the external environment.

[0041] like Figure 5 As shown, preferably, an air guide plate 21 is fixedly mounted on the inner side wall of the cooling box 5 , and a certain distance is set between the bottom surface of the air guide plate 21 and the bottom surface of the cooling box 5 .

[0042] In this embodiment, the air guide plate 21 is provided to guide the airflow generated in the ventilation box 15 so that the airflow can cool the cooling pipe 6 more effectively.

[0043] Example 2

[0044] like Figure 1 and Figure 4 As shown, based on Example 1, the utility model provides a technical solution: preferably, a water suction pipe 23 is fixedly installed on the filter component 13, a water pump is fixedly installed on the upper end of the base, the end of the water suction pipe 23 away from the filter component 13 is fixedly connected to the input end of the water pump, and a water spray pipe 24 is fixedly installed at the output end of the water pump. The water spray pipe 24 passes through the side wall of the cooling box 5 and extends to the cooling box 5 where a plurality of atomizing nozzles 25 are fixedly installed.

[0045] In this embodiment, the cooling pipe 6 is sprayed with an atomizing nozzle 25, and the wind force of the ventilation box 15 is used to distribute the atomized water more evenly around the cooling pipe 6, thereby cooling the cooling pipe 6 more effectively.

[0046] like Figure 1-5 As shown, preferably, a water collecting pipe 22 is provided at the bottom of the cooling box 5, a one-way valve is provided inside the water collecting pipe 22, and the bottom surface of the cooling box 5 is provided with a slope, and the water collecting pipe 22 is the lowest point.

[0047] In this embodiment, the water collecting pipe 22 is provided so that the residual water flowing down or evaporating after the atomizing nozzle 25 is sprayed is discharged. In order to ensure that the water can flow smoothly into the water collecting pipe 22, the bottom surface of the cooling box 5 is set to have a certain slope, and the position of the water collecting pipe 22 is set at the lowest point of the cooling box 5. Therefore, the setting of the water collecting pipe 22 prevents the residual water flowing down or evaporating after the atomizing nozzle 25 is sprayed from accumulating in the cooling box 5, and finally flows into the output pipe, and enters the cooling pipe 6 along the outlet pipe 4 for cooling. The setting of the one-way valve prevents the water in the outlet pipe 4 connected to the lower end of the water collecting pipe 22 from flowing into the cooling box 5.

[0048] Example 3

[0049] like Figure 1 and Figure 2 As shown, based on Example 1, the present utility model provides a technical solution: preferably, a water temperature meter 26 is provided on the return pipe 8.

[0050] In this embodiment, the water temperature meter 26 can monitor the water temperature in the return pipe 8 in real time, which is crucial for understanding the operating status of the cooling component. By monitoring the water temperature, possible problems in the cooling component can be discovered in time, and corresponding measures can be taken to make adjustments.

[0051] Example 4

[0052] like Figure 3 and Figure 6 As shown, based on Example 1, the present invention provides a technical solution: preferably, a plurality of connecting pipes 7 are staggered.

[0053] In this embodiment, by staggering the connecting pipe 7, the flow of water in the cooling pipe 6 is slowed down. Slowing down the flow rate can extend the residence time of the fluid in the cooling pipe 6, so that it can more fully absorb heat and transfer it to the cooling pipe 6. At the same time, the space in the cooling box 5 can be fully utilized.

[0054] The following is a detailed description of the working principle of the vacuum pump circulating water reuse device on this production line.

[0055] like Figure 1-Figure 7 As shown, during the operation of the device, the filter component in the device filters inward and adds water through the water inlet pipe 3 to add water to the vacuum pump body 1. Due to factors such as mechanical friction and gas compression, a certain amount of heat will be generated, which will make the circulating water temperature in the device higher. The heated water enters the cooling box 5 through the outlet pipe 4 and is sent to the cooling box 5. The two ventilation boxes 15 guide the air to flow in the same direction. Inside the two ventilation boxes 15, a cross bar 17 is fixedly installed. This cross bar 17 not only plays a supporting role, but also serves as the installation base of the fan blades 20. A number of gears 18 are rotatably installed on the end of the cross bar 17 away from the cooling box 5. These gears 18 are meshed with the output end of the motor 16 through a conveyor belt 19. When the motor 16 starts, it will drive the gear 18 to rotate through the conveyor belt 19. The rotation of the gear 18 further drives the gear fixed on the side away from the cooling box 5. The fan blades 20 at the end rotate, and the rotation of the fan blades 20 generates a strong airflow. These airflows enter the cooling box 5 through the opening of the ventilation box 15, and cool the heated water through the cooling pipe 6. The cooled water flows into the water tank 9 through the return pipe 8, and then the water is discharged into the water inlet pipe 3 through the circulation pipe 11, thereby being repeatedly recycled. Through the setting of the cooling component, the cooling pipe 6 is set to a wavy shape, so that the cooling pipe 6 has a longer pipe length and a larger surface area than the straight type, which means that the heated water can more fully exchange heat with the pipe wall, thereby improving the cooling efficiency. In addition, through the setting of the water tank 9, the cooled water enters the water tank 9, and the cooled water is further stored and allowed to stand, so that the water tank 9 can store the cooled water and further stand it. During the standing process, suspended matter and impurities in the water are precipitated.

[0056] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A vacuum pump circulating water recycling device on a production line, characterized in that: It comprises: a vacuum pump main body (1), a placement plate (2) being fixedly mounted on the lower end of the vacuum pump main body (1); A cooling assembly, wherein the cooling assembly is fixedly mounted above the vacuum pump body (1), and the cooling assembly comprises a water inlet pipe (3) and a water outlet pipe (4), a cooling box (5) is fixedly mounted on the upper end of the water outlet pipe (4), the water outlet pipe (4) passes through the cooling box (5) and is fixedly mounted with a plurality of cooling pipes (6), the plurality of cooling pipes (6) are arranged in a wavy shape, a plurality of connecting pipes (7) are fixedly mounted between the plurality of cooling pipes (6), an end of the cooling pipe (6) away from the water outlet pipe (4) passes through the cooling box (5) and is fixedly mounted with a return pipe (8), and a plurality of support columns are fixedly mounted at the four corners of the lower end of the cooling box (5); A water tank (9), wherein the water tank (9) is fixedly connected to one end of the return water pipe (8) away from the cooling box (5), a waste water pipe (10) is fixedly installed at the bottom end of the water tank (9), a circulation pipe (11) is fixedly installed at the side end of the water tank (9), the output end of the circulation pipe (11) is fixedly connected to the water inlet pipe (3), and a first adjustable one-way valve (12) is fixedly installed at one end of the water inlet pipe (3) close to the circulation pipe (11); A filter component (13) is fixedly mounted on an end of the water inlet pipe (3) away from the vacuum pump body (1); the filter component (13) and the water inlet pipe (3) are connected via an adapter; a second adjustable one-way valve (14) is provided on the adapter; and the filter component (13) is fixedly mounted on the upper end of the base.

2. The vacuum pump circulating water recycling device on a production line according to claim 1, characterized in that: Two ventilation boxes (15) are fixedly installed on both sides of the cooling box (5), and motors (16) are fixedly installed on the sides of the two ventilation boxes (15). A cross bar (17) is fixedly installed inside the two ventilation boxes (15). A plurality of gears (18) are rotatably installed on one end of the cross bar (17) away from the cooling box (5). The output end of the motor (16) and the plurality of gears (18) are meshed and connected via a conveyor belt (19), and a fan blade (20) is fixedly installed on one end of the gear (18) away from the cooling box (5).

3. The vacuum pump circulating water recycling device on a production line according to claim 1, characterized in that: An air guide plate (21) is fixedly mounted on the inner side wall of the cooling box (5), and a certain distance is set between the bottom surface of the air guide plate (21) and the bottom surface of the cooling box (5).

4. The vacuum pump circulating water recycling device on a production line according to claim 1, characterized in that: A water pump (23) is fixedly mounted on the filter element (13), a water pump is fixedly mounted on the upper end of the base, one end of the water pump (23) away from the filter element (13) is fixedly connected to the input end of the water pump, a water spray pipe (24) is fixedly mounted on the output end of the water pump, and the water spray pipe (24) extends into the cooling box (5) and is fixedly mounted with a plurality of atomizing nozzles (25).

5. The vacuum pump circulating water recycling device on a production line according to claim 1, characterized in that: A water collecting pipe (22) is provided at the bottom end of the cooling box (5), a one-way valve is provided inside the water collecting pipe (22), and the bottom surface of the cooling box (5) is provided with a slope, and the water collecting pipe (22) is the lowest point.

6. The vacuum pump circulating water recycling device on a production line according to claim 1, characterized in that: The return water pipe (8) is provided with a water temperature meter (26).

7. The vacuum pump circulating water recycling device on a production line according to claim 1, characterized in that: Several of the connecting pipes (7) are arranged in a staggered manner.

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