Vacuum pump preposed direct cooling type gas pretreatment filter

Abstract

The utility model discloses a vacuum pump front-mounted direct cooling type gas pretreatment filter, and belongs to the technical field of filters, the vacuum pump front-mounted direct cooling type gas pretreatment filter comprises a diversion trench, a cooling tank, an exhaust pipe and a screen, the diversion trench is mounted outside a centrifugal tank, the bottom of the centrifugal tank is connected with a collecting tank through bolts, and an air groove is mounted at the top of the centrifugal tank; one end of the air groove communicates with the outside of the centrifugal tank, and the other end of the air groove communicates with the outside of the centrifugal tank. The centrifugal tank has the beneficial effects that the exhaust port communicates with the input end of the vacuum pump, external air can enter the air groove under the action of suction force of the vacuum pump, airflow in the air groove enters the centrifugal tank at a tangent angle, and the airflow spirally flows downwards; and dust particles fall down along the inner wall of the conical centrifugal tank under the action of gravity and then fall into the collecting tank, air with the dust particles removed through pretreatment enters the vacuum pump, then abrasion to the interior of the vacuum pump can be reduced, and the service life of the vacuum pump is greatly prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to a direct-cooling gas pretreatment filter placed before a vacuum pump. Background Art

[0002] A vacuum pump is a device used to extract gas from a closed container to create and maintain a vacuum. However, existing vacuum pumps used in the chemical industry are often not equipped with a gas pretreatment filter, which results in untreated gas containing dust and impurities directly entering the vacuum pump. Impurities in the air, such as dust and particulate impurities, can damage the vacuum pump, such as corroding the internal components of the pump or increasing wear, resulting in a decrease in vacuum pump performance and a shortened lifespan. For this reason, this solution proposes a vacuum pump pre-direct cooling gas pretreatment filter that can pre-treat the air entering the vacuum pump. Utility Model Content

[0003] One of the purposes of the present application is to solve the problem that untreated gas containing dust and impurities directly enters the interior of a vacuum pump, which leads to a decrease in vacuum pump performance and a shortened lifespan, and to provide a direct-cooling gas pretreatment filter for the vacuum pump.

[0004] To achieve the above objectives, the technical solution adopted in the present application is: a direct-cooling gas pretreatment filter before a vacuum pump, comprising: a guide groove, a cooling groove, an exhaust pipe and a screen, the guide groove is installed on the outside of the centrifugal tank, the bottom of the centrifugal tank is connected to a collecting groove by bolts, the top of the centrifugal tank is installed with an air groove, one end of the air groove is connected to the outside of the centrifugal tank, and the other end of the air groove is connected to the outside of the centrifugal tank, the top of the air groove is installed with an exhaust port, the top of the exhaust port is connected to the vacuum pump, and the bottom of the exhaust port is connected to the top of the exhaust pipe, the exhaust pipe is located inside the centrifugal tank, one end of the guide groove is provided with a cooling groove, and a fan is installed inside the cooling groove.

[0005] Preferably, the guide groove and the internal connecting channel of the centrifugal tank are at a tangential angle along the inner wall of the centrifugal tank, and one end of the bottom of the centrifugal tank is a conical structure. By connecting the exhaust port with the input end of the vacuum pump, the external air will enter the interior of the wind groove under the action of the suction force of the vacuum pump, and the airflow inside the wind groove enters the interior of the centrifugal tank at a tangential angle and flows downward in a spiral. The dust particles fall downward along the conical inner wall of the centrifugal tank under the action of gravity, and then fall into the collection tank.

[0006] Preferably, a guide plate is welded to the outer wall of the exhaust pipe, the guide plate has a spiral structure, and there is a gap between the outer side of the guide plate and the inner wall of the centrifugal tank. The guide plate can ensure that the air entering the centrifugal tank circulates in a spiral shape.

[0007] Preferably, one end of the interior of the cooling trough is contracted, and one end of the cooling trough is connected to the interior of the guide trough, and the other end of the guide trough is connected to the outside, and there is a gap between the inner wall of the guide trough and the outer wall of the centrifugal tank, and the inner wall of the guide trough and the outer wall surface of the centrifugal tube are parallel to each other. Under the action of the fan, external air will enter the interior of the cooling trough, and through the contraction structure of one end of the interior of the cooling trough, the airflow can be compressed when passing through the cooling trough, and then the airflow velocity can be accelerated when the airflow circulates between the inner wall of the cooling trough and the outer wall of the centrifugal tank, thereby improving the heat exchange rate between the airflow and the centrifugal tank, and achieving a better air-cooling effect on the outer wall of the centrifugal tank.

[0008] Preferably, an atomizing nozzle is installed inside one end of the cooling trough, the top of the atomizing nozzle is connected to a water pump, the other end of the water pump is connected to the inside of the water tank, and a water inlet is installed on one side of the top of the water tank. When passing through the cooling trough, the water inside the water tank can be pumped into the atomizing nozzle under the action of the water pump. The water mist sprayed by the atomizing nozzle can adhere to the outer wall of the centrifugal tank under the drive of the airflow, and the water on the outer wall of the centrifugal tank is driven by the airflow to evaporate quickly, so that the cooling effect of the centrifugal tank can be further improved.

[0009] Preferably, a screen is connected to the bottom of the exhaust pipe by bolts, the screen is a cup-shaped structure, and the outer surface of the screen is in contact with the brush, the bottom of the brush is an L-shaped structure, and one end of the bottom of the brush is connected to the impeller through a shaft, the impeller is located on the inner side of one end of the top of the screen, and the brushes are distributed in a circular shape with equal intervals. When the air passes through the screen inside the centrifuge tank and enters the exhaust pipe, the centrifuged air can be filtered again through the screen, so that smaller dust particles can be further filtered on the outer wall of the screen, and when the airflow passes through the screen and enters the outside of the exhaust pipe, it drives the impeller to rotate, and while the impeller rotates, it can drive the brush to rotate through the rotating shaft, and then the brush makes a circular motion along the outer wall of the screen, and at the same time the brush will clean the dust attached to the outer wall of the screen.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] (1) The vacuum pump is pre-installed with a direct-cooling gas pretreatment filter. By connecting the exhaust port with the vacuum pump input end, the external air will enter the air trough under the action of the vacuum pump suction force. The airflow inside the air trough enters the centrifugal tank at a tangential angle and flows downward in a spiral, and then enters the exhaust pipe from the bottom of the exhaust pipe. The air inside the exhaust pipe will flow to the exhaust port and finally enter the vacuum pump through the exhaust port. When the airflow flows in a spiral shape inside the centrifugal tank, the dust particles in the air move toward the inner wall of the centrifugal tank under the action of centrifugal force, and then the dust particles fall down along the conical inner wall of the centrifugal tank under the action of gravity, and then fall into the collection tank. After the air is pre-treated and the dust particles are removed, it can reduce the wear on the inside of the vacuum pump and greatly extend the service life of the vacuum pump.

[0012] (2) The vacuum pump is equipped with a direct-cooling gas pre-treatment filter. When the air passes through the screen inside the centrifugal tank and enters the exhaust pipe, the centrifuged air can be filtered again through the screen, so that smaller dust particles can be further filtered on the outer wall of the screen. When the air flow passes through the screen and enters the outside of the exhaust pipe, it will drive the impeller to rotate. At the same time, the impeller can drive the brush to rotate through the rotating shaft, and then the brush will make a circular motion along the outer wall of the screen. At the same time, the brush will clean the dust attached to the outer wall of the screen, which is helpful to prevent dust from adhering to the outer wall of the screen and affecting the filtering effect of the screen.

[0013] (3) The vacuum pump is provided with a direct cooling gas pretreatment filter. Under the action of the fan, the external air will enter the cooling tank. The cooling tank has a contraction structure at one end, so that the airflow can be compressed when passing through the cooling tank, and the airflow velocity can be accelerated when the airflow circulates between the inner wall of the cooling tank and the outer wall of the centrifugal tank, thereby improving the heat exchange rate between the airflow and the centrifugal tank, and achieving a better air cooling effect on the outer wall of the centrifugal tank. Moreover, when the airflow passes through the cooling tank, the water inside the water tank can be pumped into the atomizing nozzle under the action of the water pump. The water mist sprayed by the atomizing nozzle can adhere to the outer wall of the centrifugal tank under the drive of the airflow. The water on the outer wall of the centrifugal tank is quickly evaporated by the airflow, so that the cooling effect of the centrifugal tank can be further improved, so that the centrifugal tank can better cool the internal air. The cooled air can cool down the heat generated by the vacuum pump during operation, which is beneficial to protecting the vacuum pump through the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of the guide trough of the utility model.

[0016] Figure 3This is a schematic diagram of the internal structure of the centrifugal tank of the utility model.

[0017] Figure 4 This is a schematic diagram of the screen structure of the utility model.

[0018] Figure 5 This is a schematic diagram of the cooling tank structure of the utility model.

[0019] In the figure: 1. guide trough; 2. air trough; 3. exhaust port; 4. cooling trough; 5. fan; 6. centrifugal tank; 7. water tank; 8. water inlet; 9. water pump; 10. atomizing nozzle; 11. guide plate; 12. exhaust pipe; 13. screen; 14. brush; 15. impeller; 16. collection tank. DETAILED DESCRIPTION

[0020] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating the orientation and position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0022] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0023] One of the preferred embodiments of this application is as follows: Figures 1 to 3As shown, the vacuum pump front direct cooling gas pretreatment filter includes: a guide groove 1, a cooling groove 4, an exhaust pipe 12 and a screen 13, the guide groove 1 is installed on the outside of the centrifugal tank 6, the bottom of the centrifugal tank 6 is connected to a collecting groove 16 by bolts, the top of the centrifugal tank 6 is installed with an air groove 2, one end of the air groove 2 is connected to the outside of the centrifugal tank 6, and the other end of the air groove 2 is connected to the outside of the centrifugal tank 6, an exhaust port 3 is installed on the top of the air groove 2, the top of the exhaust port 3 is connected to the vacuum pump, and the bottom of the exhaust port 3 is connected to the top of the exhaust pipe 12, the exhaust pipe 12 is located inside the centrifugal tank 6, a cooling groove 4 is provided at one end of the guide groove 1, a fan 5 is installed inside the cooling groove 4, the guide groove 1 and the internal connecting channel of the centrifugal tank 6 are at a tangent angle along the inner wall of the centrifugal tank 6, one end of the bottom of the centrifugal tank 6 is a cone-shaped structure, a guide plate 11 is welded to the outer wall of the exhaust pipe 12, the guide plate 11 is a spiral structure, and the guide plate 11 There is a gap between the outside and the inner wall of the centrifugal tank 6. By connecting the exhaust port 3 with the vacuum pump input end, the external air will enter the wind trough 2 under the action of the vacuum pump suction, and the airflow inside the wind trough 2 enters the centrifugal tank 6 at a tangential angle, circulates downward in a spiral, and then enters the exhaust pipe 12 from the bottom of the exhaust pipe 12. The air inside the exhaust pipe 12 will circulate to the exhaust port 3 and finally enter the vacuum pump through the exhaust port 3. When the airflow circulates in a spiral shape inside the centrifugal tank 6, the dust particles in the air move toward the inner wall of the centrifugal tank 6 under the action of centrifugal force, and then the dust particles fall downward along the conical inner wall of the centrifugal tank 6 under the action of gravity, and then fall into the collecting tank 16. The air after pre-treatment to remove dust particles can reduce the wear on the inside of the vacuum pump after entering the vacuum pump, thereby greatly extending the service life of the vacuum pump.

[0024] One of the preferred embodiments of this application is as follows: Figures 1 to 3As shown, one end of the interior of the cooling trough 4 is in a contraction shape, and one end of the cooling trough 4 is connected to the interior of the guide trough 1, and the other end of the guide trough 1 is connected to the outside, and there is a gap between the inner wall of the guide trough 1 and the outer wall of the centrifugal tank 6, and the inner wall of the guide trough 1 and the outer wall surface of the centrifugal tube are parallel to each other, an atomizing nozzle 10 is installed inside one end of the cooling trough 4, the top of the atomizing nozzle 10 is connected to the water pump 9, the other end of the water pump 9 is connected to the interior of the water tank 7, and a water inlet 8 is installed on one side of the top of the water tank 7. Under the action of the fan 5, external air will enter the interior of the cooling trough 4, and pass through the contraction structure of one end of the interior of the cooling trough 4, so that the airflow can be compressed when passing through the cooling trough 4, thereby causing the airflow to be compressed between the inner wall of the cooling trough 4 and the centrifugal tank 6. When the outer wall is circulated, the air flow rate can be accelerated, thereby improving the heat exchange rate between the air flow and the centrifugal tank 6, and achieving a better air-cooling effect on the outer wall of the centrifugal tank 6. Moreover, when the air flow passes through the cooling groove 4, under the action of the water pump 9, the water inside the water tank 7 can be pumped into the atomizing nozzle 10. The water mist sprayed by the atomizing nozzle 10 can adhere to the outer wall of the centrifugal tank 6 under the drive of the air flow. The water on the outer wall of the centrifugal tank 6 is quickly evaporated by the air flow, so that the cooling effect of the centrifugal tank 6 can be further improved, and the centrifugal tank 6 can better cool the internal air. The cooled air can cool down the heat generated by the vacuum pump during operation, which is beneficial to protecting the vacuum pump through the filter.

[0025] One of the preferred embodiments of this application is as follows: Figures 1 to 4 As shown, a screen 13 is connected to the bottom of the exhaust pipe 12 by bolts. The screen 13 is a cup-shaped structure, and the outer surface of the screen 13 is in contact with the brush 14. The bottom of the brush 14 is an L-shaped structure, and one end of the bottom of the brush 14 is connected to the impeller 15 through an axis. The impeller 15 is located on the inner side of one end of the top of the screen 13, and the brushes 14 are distributed in a circular shape with equal intervals. When air passes through the screen 13 inside the centrifugal tank 6 and enters the exhaust pipe 12, the centrifuged air can be filtered again through the screen 13, so that smaller dust particles can be further filtered on the outer wall of the screen 13. When the air flow passes through the screen 13 and enters the outside of the exhaust pipe 12, it will drive the impeller 15 to rotate. When the impeller 15 rotates, it can drive the brush 14 to rotate through the rotating shaft, and then the brush 14 makes a circular motion along the outer wall of the screen 13. At the same time, the brush 14 will clean the dust attached to the outer wall of the screen 13, which is beneficial to prevent dust from adhering to the outer wall of the screen 13 and affecting the filtering effect of the screen 13.

[0026] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. Vacuum pump front direct cooling gas pretreatment filter, characterized by: include: A guide trough (1), a cooling trough (4), an exhaust pipe (12) and a screen (13), wherein the guide trough (1) is installed outside the centrifugal tank (6), the bottom of the centrifugal tank (6) is connected to a collecting trough (16) by bolts, the top of the centrifugal tank (6) is installed with an air trough (2), one end of the air trough (2) is connected to the outside of the centrifugal tank (6), and the other end of the air trough (2) is connected to the outside of the centrifugal tank (6), an exhaust port (3) is installed on the top of the air trough (2), the top of the exhaust port (3) is connected to a vacuum pump, and the bottom of the exhaust port (3) is connected to the top of the exhaust pipe (12), the exhaust pipe (12) is located inside the centrifugal tank (6), one end of the guide trough (1) is provided with a cooling trough (4), and a fan (5) is installed inside the cooling trough (4).

2. The vacuum pump pre-direct cooling gas pretreatment filter according to claim 1, characterized in that: The guide groove (1) and the internal connecting channel of the centrifugal tank (6) are arranged at a tangent angle along the inner wall of the centrifugal tank (6), and one end of the bottom of the centrifugal tank (6) is in a conical structure.

3. The vacuum pump pre-direct cooling gas pretreatment filter according to claim 1, characterized in that: A guide plate (11) is welded to the outer wall of the exhaust pipe (12), the guide plate (11) has a spiral structure, and a gap exists between the outer side of the guide plate (11) and the inner wall of the centrifugal tank (6).

4. The vacuum pump pre-direct cooling gas pretreatment filter according to claim 1, characterized in that: One end of the interior of the cooling groove (4) is contracted, and one end of the cooling groove (4) is connected to the interior of the guide groove (1), and the other end of the guide groove (1) is connected to the outside, and there is a gap between the inner wall of the guide groove (1) and the outer wall of the centrifuge tank (6), and the inner wall of the guide groove (1) and the outer wall surface of the centrifuge tube are parallel to each other.

5. The vacuum pump pre-direct cooling gas pretreatment filter according to claim 1, characterized in that: An atomizing nozzle (10) is installed inside one end of the cooling tank (4), the top of the atomizing nozzle (10) is connected to a water pump (9), the other end of the water pump (9) is connected to the inside of the water tank (7), and a water inlet (8) is installed on one side of the top of the water tank (7).

6. The vacuum pump pre-direct cooling gas pretreatment filter according to claim 1, characterized in that: The bottom of the exhaust pipe (12) is connected to a screen (13) by bolts. The screen (13) is in a cup-shaped structure, and the outer surface of the screen (13) contacts the brush (14). The bottom of the brush (14) is in an L-shaped structure, and one end of the bottom of the brush (14) is connected to the impeller (15) through a shaft. The impeller (15) is located on the inner side of one end of the top of the screen (13). The brushes (14) are distributed in a circular shape with equal spacing.

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