Vacuum unit tail gas purification device

Abstract

The utility model discloses a vacuum unit tail gas purification device which comprises an upper shell, a filter element and a lower shell, a gas inlet pipe is arranged on the side portion of the upper shell, a gas exhaust pipe is arranged at the top of the upper shell, an assembly base is arranged at the lower end of the gas exhaust pipe, a limiting ring is arranged at the lower end of the assembly base, a support is installed in the limiting ring, and the filter element is arranged on the support. The utility model relates to the technical field of tail gas treatment of a vacuum pump unit, a filter element and an upper shell are assembled through a long-rod bolt and an annular groove plate, so that the convenience of mounting and dismounting the filter element can be greatly improved; the rotary blockage clearing assembly is arranged in the lower shell and can be driven by the driving assembly, oil attached to the outer wall of the filter element is scraped and cleared by the rotary blockage clearing assembly, the oil mist separation efficiency is greatly improved, and the service life of the filter element is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pump unit tail gas treatment, in particular to a vacuum unit tail gas purification device. Background Art

[0002] An oil diffusion pump is a precision device used to create a vacuum environment. With the increasing prevalence of vacuum processes across various industries, vacuum pumps have become a common fixture in many factories. Vacuum diffusion pump units are widely used in the electronics, chemical, metallurgical, mechanical, petroleum, and atomic energy sectors, including high-vacuum sintering, heat treatment, and coating. Some users of oil-sealed vacuum pumps have reported that the oil mist contamination from the pump's exhaust is highly hazardous. If discharged directly without filtration, the oil mist not only harms the health of workers but also pollutes the atmosphere. Therefore, oil-sealed vacuum pumps must be equipped with an oil mist filter to filter the exhaust. However, after a period of use, the filter elements in these filters can become clogged, necessitating frequent replacement, significantly increasing operational costs. Furthermore, traditional oil mist filters only remove oil from the exhaust gas, but are difficult to remove odors, which can negatively impact the quality of the workspace environment. In light of these issues, in-depth research has been conducted, leading to the present case. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a vacuum unit tail gas purification device, which solves the problems raised in the background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vacuum unit exhaust gas purification device, comprising an upper shell, a filter element and a lower shell, the side of the upper shell is provided with an intake pipe, the top of the upper shell is provided with an exhaust pipe, the lower end of the exhaust pipe is provided with an assembly seat, the lower end of the assembly seat is provided with a limiting ring, a bracket is installed in the limiting ring, and a threaded seat is installed at the lower end of the bracket, the upper end of the filter element is clamped in the position of the limiting ring, the lower end of the filter element is provided with an annular groove plate, the annular groove plate is assembled and fixed with the threaded seat by a long rod bolt, the lower shell is buckled on the outside of the filter element and assembled with the upper shell, a rotary clearing assembly is provided in the lower shell, the lower end of the rotary clearing assembly passes through the bottom plate of the lower shell and is connected to the drive assembly, and the upper end of the exhaust pipe is connected

[0005] The above-mentioned rotary blockage clearing assembly includes a fixed seat, a rotating shaft, a U-shaped frame and a brush. The fixed seat is arranged on the inner end surface of the lower shell body, the rotating shaft rotates and seals with the fixed seat and the lower end extends to the outside of the lower shell body, the U-shaped frame is welded on the rotating shaft, and the brush is symmetrically arranged on the inner wall surface of the U-shaped frame and the bristles are in contact with the outer wall of the filter element.

[0006] The above-mentioned driving assembly includes a mounting frame, a servo motor and a reducer. The mounting frame is arranged on the lower end of the lower shell, the servo motor is arranged on the mounting frame, the input end of the reducer is connected to the driving end of the servo motor, and the output end is connected to the exposed end of the rotating shaft.

[0007] A conical oil guide plate is sleeved on the outer side of the fixing seat.

[0008] An oil drain hole is provided on the bottom surface of the lower shell, and an oil drain valve is installed at the position of the oil drain hole.

[0009] The above-mentioned adsorption filter assembly includes a filter cartridge, a grid plate and activated carbon adsorbent particles. The filter cartridge is installed on one end of the exhaust pipe, the grid plate is arranged at both ends of the filter cartridge, and the activated carbon adsorbent particles are filled in the filter cartridge.

[0010] The utility model provides a vacuum unit exhaust gas purification device with the following beneficial effects: it is connected to the exhaust end of the vacuum unit, and the upper and lower shells are split into a design, which is convenient for disassembly and replacement of the filter element; the filter element and the upper shell are assembled by long-rod bolts and annular groove plates, which greatly improves the convenience of installing and removing the filter element; a rotary clearing assembly is provided in the lower shell, which can be driven by a driving assembly, and the rotary clearing assembly is used to scrape and clean the oil attached to the outer wall of the filter element, and under the action of the rotating centrifugal force, the oil droplets are thrown onto the side wall of the lower shell, and the oil droplets are further collected to the bottom of the lower shell under the action of gravity, which greatly improves the oil mist separation efficiency and extends the service life of the filter element; in addition, the provision of the adsorption filter assembly can effectively reduce the odor in the exhaust gas and further improve the air environment quality of the working space. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of a vacuum unit exhaust gas purification device described in the present invention.

[0012] Figure 2 For this utility model Figure 1 Schematic diagram of the locally enlarged structure at position a.

[0013] Figure 3 This is a schematic diagram of the axonometric structure of the rotary blockage clearing assembly of the present invention.

[0014] Figure 4 This is a schematic diagram of the axonometric structure of the assembly seat of the utility model.

[0015] In the figure: 1. Upper shell; 2. Filter element; 3. Lower shell; 4. Inlet pipe; 5. Exhaust pipe; 6. Assembly seat; 7. Limiting ring; 8. Bracket; 9. Threaded seat; 10. Annular groove plate; 11. Long rod bolt; 12. Fixed seat; 13. Rotating shaft; 14. U-shaped frame; 15. Brush; 16. Mounting frame; 17. Servo motor; 18. Reducer; 19. Conical oil guide plate; 20. Oil drain valve; 21. Filter cartridge; 22. Grid plate; 23. Activated carbon adsorbent particles. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example: In conjunction with the instructions attached Figure 1-4 It can be seen that the present application specifically designs a vacuum unit exhaust gas purification device, including an upper shell 1, a filter element 2 and a lower shell 3. An air inlet pipe 4 is provided on the side of the upper shell 1, an exhaust pipe 5 is provided on the top of the upper shell 1, an assembly seat 6 is provided at the lower end of the exhaust pipe 5, a limiting ring 7 is provided at the lower end of the assembly seat 6, a bracket 8 is installed in the limiting ring 7, a threaded seat 9 is installed at the lower end of the bracket 8, the upper end of the filter element 2 is clamped on the position of the limiting ring 7, and an annular groove plate 10 is provided at the lower end of the filter element 2. The annular groove plate 10 is assembled and fixed with the threaded seat 9 by a long rod bolt 11. The lower shell 3 is buckled on the outside of the filter element 2 and assembled with the upper shell 1. A rotary clearing assembly is provided in the lower shell 3. The lower end of the rotary clearing assembly passes through the bottom plate of the lower shell 3 and is connected to the drive assembly. The upper end of the exhaust pipe 5 is connected with an adsorption filter assembly. When in use, the inlet of this device is The air pipe 4 is connected to the exhaust end of the vacuum unit, and the upper shell 1 and the lower shell 3 adopt a split design, which is convenient for disassembly and replacement of the filter element 2; the filter element 2 and the upper shell 1 are assembled by long rod bolts 11 and annular groove plates 10, which can greatly improve the convenience of installation and disassembly of the filter element 2; a rotary clearing assembly is provided in the lower shell 3, which can be driven by a driving assembly, and the rotary clearing assembly is used to scrape and clean the oil attached to the outer wall of the filter element 2, and under the action of the rotating centrifugal force, the oil droplets are thrown onto the side wall of the lower shell 3, and the oil droplets are further gathered to the bottom of the lower shell 3 under the action of gravity, which greatly improves the oil mist separation efficiency and extends the service life of the filter element 2; in addition, the setting of the adsorption filter assembly can effectively reduce the odor in the exhaust gas and further improve the air environment quality of the working space.

[0018] In the specific implementation process, as a preferred setting, the above-mentioned rotary plugging removal component includes a fixed seat 12, a rotating shaft 13, a U-shaped frame 14 and a brush 15. The fixed seat 12 is arranged on the inner end surface of the lower shell 3, and a conical oil guide plate 19 is set on the outside of the fixed seat 12. The rotating shaft 13 rotates and seals with the fixed seat 12 and the lower end extends to the outside of the lower shell 3. The U-shaped frame 14 is welded on the rotating shaft 13. The brush 15 is symmetrically arranged on the inner wall of the U-shaped frame 14 and the bristles are attached to the outer wall of the filter element 2. The driving assembly includes a mounting frame 16, a servo motor 17 and a reducer 18. The mounting frame 16 is arranged on the lower end of the lower shell 3, and the servo motor 17 is provided. It is placed on the mounting frame 16, the input end of the reducer 18 is connected to the driving end of the servo motor 17, and the output end is connected to the exposed end of the rotating shaft 13. When in use, the servo motor 17 is started, and the cooperation between the servo motor 17 and the reducer 18 is used to realize the rotation control of the rotating shaft 13, so that the U-shaped frame 14 rotates. During the rotation of the U-shaped frame 14, the brush 15 scrapes and cleans the oil attached to the outer wall of the filter element 2, and under the action of the centrifugal force of the rotation, the oil droplets are thrown onto the side wall of the lower shell 3. The oil droplets are further gathered to the bottom of the lower shell 3 under the action of gravity, which greatly improves the oil mist separation efficiency and extends the service life of the filter element 2.

[0019] In the specific implementation process, as a preferred setting, the bottom surface of the above-mentioned lower shell 3 is opened with an oil drain hole, and an oil drain valve 20 is installed at the position of the oil drain hole. The oil drain valve 20 can be opened regularly to discharge the intercepted oil.

[0020] During the specific implementation process, as a preferred setting, the above-mentioned adsorption and filtration assembly includes a filter cartridge 21, a grid mesh plate 22 and activated carbon adsorbent particles 23. The filter cartridge 21 is installed on one end of the exhaust pipe 5, and the grid mesh plate 22 is arranged at both ends of the filter cartridge 21. The activated carbon adsorbent particles 23 are filled in the filter cartridge 21. The activated carbon adsorbent particles 23 are used to adsorb and filter the odor in the exhaust gas, thereby effectively improving the air environment quality in the working area. The grid mesh plate 22 is a detachable structure, which is convenient for replacing the activated carbon adsorbent particles 23.

[0021] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum unit exhaust gas purification device, comprising an upper shell, a filter element and a lower shell, characterized in that: An air inlet pipe is provided on the side of the upper shell body, an exhaust pipe is provided on the top of the upper shell body, an assembly seat is provided at the lower end of the exhaust pipe, a limiting ring is provided at the lower end of the assembly seat, a bracket is installed in the limiting ring, a threaded seat is installed at the lower end of the bracket, the upper end of the filter element is clamped in the position of the limiting ring, and an annular groove plate is provided at the lower end of the filter element, and the annular groove plate is assembled and fixed with the threaded seat by a long rod bolt. The lower shell body is buckled on the outside of the filter element and assembled with the upper shell body, a rotary clearing assembly is provided in the lower shell body, the lower end of the rotary clearing assembly passes through the bottom plate of the lower shell body and is connected to the driving assembly, and the upper end of the exhaust pipe is connected with an adsorption filter assembly.

2. A vacuum unit tail gas purification device according to claim 1, characterized in that: The rotary blockage removal assembly includes a fixed seat, a rotating shaft, a U-shaped frame and a brush. The fixed seat is arranged on the inner end surface of the lower shell body. The rotating shaft rotates and seals with the fixed seat and the lower end extends to the outside of the lower shell body. The U-shaped frame is welded to the rotating shaft. The brush is symmetrically arranged on the inner side wall of the U-shaped frame and the bristles are in contact with the outer wall of the filter element.

3. A vacuum unit tail gas purification device according to claim 2, characterized in that: The drive assembly includes a mounting frame, a servo motor and a reducer. The mounting frame is arranged on the lower end of the lower shell, the servo motor is arranged on the mounting frame, the input end of the reducer is connected to the driving end of the servo motor, and the output end is connected to the exposed end of the rotating shaft.

4. A vacuum unit tail gas purification device according to claim 2, characterized in that: A conical oil guide plate is sleeved on the outer side of the fixing seat.

5. The tail gas purification device of a vacuum unit according to claim 1, characterized in that: An oil drain hole is provided on the bottom surface of the lower shell body, and an oil drain valve is installed at the position of the oil drain hole.

6. The tail gas purification device of a vacuum unit according to claim 1, characterized in that: The adsorption filter assembly includes a filter cartridge, a grid plate and activated carbon adsorbent particles. The filter cartridge is installed on one end of the exhaust pipe, the grid plate is arranged at both ends of the filter cartridge, and the activated carbon adsorbent particles are filled in the filter cartridge.

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