Vacuum pump exhaust port filter

Abstract

The utility model provides a vacuum pump exhaust port filter core, including setting on the exhaust pipe of vacuum pump, set up in the filter core subassembly of exhaust pipe inside, set up the connecting assembly of exhaust pipe outside. Through the filter core subassembly that sets up, can to the big granule solid impurity, oil mist, particulate matter and small oil droplet in gas step by step filtration, effectively prevented the pollutant in the air of exhaust diffusion and formed oil mist, thereby avoid the pollution to air, through the connecting assembly that sets up, can form the connection of filter cylinder and exhaust pipe, further strengthened the stability of filter cylinder in the inside of exhaust pipe, prevents the displacement or loosening of filter cylinder because of the impact of airflow.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump technology, and in particular to a vacuum pump exhaust port filter element. Background Technology

[0002] A vacuum pump is a mechanical device used to remove gas molecules from a closed space to create a vacuum environment. During operation, the exhaust port of a vacuum pump discharges gas containing oil mist, dust, or other impurities. These impurities not only pollute the environment but may also damage downstream equipment of the vacuum pump. Therefore, the gas discharged from the exhaust port is filtered.

[0003] Current vacuum pump exhaust ports typically use simple filters that can only intercept large solid particles. When the vacuum pump is in continuous operation, the lubricating oil inside will gradually vaporize due to prolonged mechanical friction and high temperature, forming micron-sized oil droplets. A single-layer filter structure is insufficient to effectively intercept these micron-sized oil droplets, and a large number of oil droplets will be discharged along with the vacuum pump exhaust, which will then rapidly diffuse in the air to form oil mist, causing air pollution. To address this, we provide a vacuum pump exhaust port filter element. Utility Model Content

[0004] This invention provides a vacuum pump exhaust port filter element that can intercept oil mist in the exhaust gas, thereby preventing pollution of the air environment.

[0005] The purpose and effect of this utility model, a vacuum pump exhaust port filter element, are achieved by the following specific technical means: A vacuum pump exhaust port filter element includes an exhaust pipe disposed on a vacuum pump:

[0006] The filter element assembly is disposed inside the exhaust pipe, including a filter cartridge disposed inside the exhaust pipe and an upper filter layer, a middle filter layer and a coarse filter layer disposed inside the filter cartridge;

[0007] A connecting component, located outside the exhaust pipe, is used to connect the filter cartridge to the exhaust pipe.

[0008] Preferably, the upper filter layer is a multi-layer composite filter paper, the middle filter layer is polyester fiber cotton, and the coarse filter layer is a metal filter screen with a pore size of 50 to 100 μm.

[0009] Preferably, a sealing cap is detachably installed at the top of the filter cartridge, and an activated carbon plate is detachably installed on the sealing cap.

[0010] Preferably, an annular stabilizing plate is fixedly connected to the outer surface of the filter cartridge, and the outer surface of the annular stabilizing plate is in contact with the inner wall of the exhaust pipe.

[0011] Preferably, the bottom end of the filter cartridge is provided with a collection cover, and the top end of the collection cover extends into the bottom end of the filter cartridge.

[0012] Preferably, the inner side of the collection cover is fixedly connected with a ring of hanging rods, and the bottom end of a group of hanging rods is fixedly connected with a ring scraper.

[0013] Preferably, the connecting assembly includes a connecting shell disposed outside the top of the exhaust pipe, the inner side of the top of the connecting shell being connected to the outer surface of the filter cartridge, and the outer surface of the connecting shell being threaded.

[0014] Preferably, a fixing shell is provided below the connecting shell, and the inner side of the fixing shell is connected to the outer surface of the exhaust pipe. The outer surface of the fixing shell is threaded, and the outer surface of the connecting shell and the outer surface of the fixing shell are threaded together to form a fixing cylinder.

[0015] Preferably, the inner side of the connecting shell is provided with a ring of positioning grooves, and each positioning groove is provided with a positioning block inside. The side of each group of positioning blocks that is close to each other is connected to the outer surface of the exhaust pipe.

[0016] Preferably, the exterior of the exhaust pipe is provided with sound-absorbing cotton.

[0017] Beneficial effects:

[0018] 1. The filter cartridge assembly can filter large solid impurities, oil mist, particulate matter and fine oil droplets in the gas step by step, effectively preventing pollutants in the exhaust from spreading in the air and forming oil mist, thus avoiding air pollution. The connecting assembly can connect the filter cartridge to the exhaust pipe, further enhancing the stability of the filter cartridge inside the exhaust pipe and preventing the filter cartridge from shifting or loosening due to airflow impact.

[0019] 2. The activated carbon plate further adsorbs odors from the gas, ensuring the cleanliness of the discharged gas. The connecting shell, fixed shell, and fixed cylinder work together, and the fixed cylinder connects the connecting shell and the fixed shell, thus fixing the connecting shell and ensuring the stability of the connecting shell's support for the filter cartridge. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the filter element assembly of this utility model.

[0022] Figure 3 This is a three-dimensional structural schematic diagram of the filter cartridge of this utility model, shown in a cross-sectional view.

[0023] Figure 4 This is a three-dimensional structural diagram of the annular scraper of this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the connecting component of this utility model.

[0025] Figure 6 This is an exploded structural diagram of the connecting component of this utility model.

[0026] Figure 1-6 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0027] 1. Exhaust pipe; 2. Filter element assembly; 201. Filter cartridge; 202. Upper filter layer; 203. Middle filter layer; 204. Coarse filter layer; 205. Sealing cover; 206. Activated carbon plate; 207. Annular stabilizing plate; 208. Collection cover; 209. Hanger rod; 210. Annular scraper; 3. Connecting assembly; 301. Connecting shell; 302. Fixing shell; 303. Fixing cylinder; 304. Positioning groove; 305. Positioning block; 4. Sound-absorbing cotton. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] First Embodiment

[0030] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 To be continued Figure 4 As shown: A vacuum pump exhaust port filter element includes an exhaust pipe 1 disposed on the vacuum pump, and a filter element assembly 2 disposed inside the exhaust pipe 1. The filter element assembly 2 includes a filter cartridge 201 disposed inside the exhaust pipe 1 and an upper filter layer 202, a middle filter layer 203, and a coarse filter layer 204 disposed inside the filter cartridge 201. By utilizing the cooperation of the upper filter layer 202, the middle filter layer 203, and the coarse filter layer 204, large particulate solid impurities, oil mist, particulate matter, and fine oil droplets in the gas can be filtered step by step, effectively preventing pollutants in the exhaust from diffusing into the air and forming oil mist, thereby avoiding air pollution.

[0031] The upper filter layer 202 is a multi-layer composite filter paper, which can effectively remove tiny particles. The middle filter layer 203 is made of polyester fiber cotton, which can intercept some oil mist and medium-sized particles. The coarse filter layer 204 is a metal filter screen with a pore size of 50 to 100 μm. The metal filter screen can prevent large particles of impurities from entering the subsequent filter layers and extend the service life of the middle filter layer 203 and the upper filter layer 202.

[0032] A sealing cover 205 is detachably installed at the top of the filter cartridge 201. An activated carbon plate 206 is detachably installed on the sealing cover 205. The activated carbon plate 206 can further filter the treated gas and adsorb odors in the gas, thereby preventing air pollution.

[0033] An annular stabilizing plate 207 is fixedly connected to the outer surface of the filter cartridge 201. The outer surface of the annular stabilizing plate 207 is in contact with the inner wall of the exhaust pipe 1. The annular stabilizing plate 207 can fill the gap between the filter cartridge 201 and the exhaust pipe 1, thereby ensuring the stability of the filter cartridge 201 inside the exhaust pipe 1.

[0034] A collection cover 208 is provided at the bottom of the filter cartridge 201, and the top of the collection cover 208 extends into the bottom of the filter cartridge 201. The collection cover 208 can guide the gas inside the exhaust pipe 1, thereby ensuring that the gas passes through the filter cartridge 201 and further ensuring the gas filtration effect.

[0035] The inner side of the collection cover 208 is fixedly connected with a ring of hanging rods 209. The bottom of a group of hanging rods 209 is fixedly connected to a ring scraper 210. The hanging rods 209 can stabilize the ring scraper 210 inside the exhaust pipe 1. When the operator disassembles the filter cartridge 201, the ring scraper 210 will move synchronously to scrape off the residue on the inner wall of the filter cartridge 201, making it easier for the staff to clean the exhaust pipe 1.

[0036] Second Embodiment

[0037] As attached Figure 1 Appendix Figure 5 To be continued Figure 6 As shown: Connecting component 3 is disposed outside the exhaust pipe 1 and is used to connect the filter cartridge 201 to the exhaust pipe 1. Connecting component 3 includes a connecting shell 301 disposed outside the top of the exhaust pipe 1. The inner side of the top of the connecting shell 301 is connected to the outer surface of the filter cartridge 201. The outer surface of the connecting shell 301 is threaded. The connecting shell 301 can be used to hold the filter cartridge 201 on the top of the exhaust pipe 1, so that the filter cartridge 201 can be suspended inside the exhaust pipe 1.

[0038] A fixing shell 302 is provided below the connecting shell 301, and the inner side of the fixing shell 302 is connected to the outer surface of the exhaust pipe 1. The outer surface of the fixing shell 302 is threaded. The outer surface of the connecting shell 301 and the outer surface of the fixing shell 302 are threaded together to form a fixing cylinder 303. The fixing cylinder 303 can be used to connect the fixing shell 302 and the connecting shell 301, thereby fixing the connecting shell 301 to the exhaust pipe 1 and ensuring the firmness of the filter cartridge 201.

[0039] The inner side of the connecting shell 301 is provided with a ring of positioning grooves 304. Each positioning groove 304 is provided with a positioning block 305. The side of each group of positioning blocks 305 that is close to each other is connected to the outer surface of the exhaust pipe 1. By using the cooperation of the positioning grooves 304 and the positioning blocks 305, the connecting shell 301 can be positioned, which can prevent the connecting shell 301 from rotating when the fixed cylinder 303 is rotated.

[0040] Third Embodiment

[0041] As attached Figure 1 The exterior of the exhaust pipe 1 is equipped with sound-absorbing cotton 4. The sound-absorbing cotton 4 is made of porous sound-absorbing material, which can absorb the noise generated when the gas passes through the filter cartridge 201, thereby significantly reducing the noise pollution generated during the exhaust process.

[0042] Working principle: When in use, insert the filter cartridge 201 into the exhaust pipe 1 and insert the positioning groove 304 on the filter cartridge 201 into the outside of the positioning block 305. Then rotate the fixed cylinder 303 to form a connection with the fixed shell 302. When the exhaust pipe 1 discharges gas, the gas first passes through the coarse filter layer 204. Large solid impurities are intercepted on the surface of the coarse filter layer 204. The gas passing through the coarse filter layer 204 enters the middle filter layer 203. When the gas passes through the middle filter layer 203, oil mist and particulate matter are captured by the fibers. Then the gas continues to pass through the upper filter layer 202. Fine oil droplets are intercepted by the upper filter layer 202. Finally, the gas is discharged into the air through the activated carbon plate 206, which can prevent air pollution.

Claims

1. A vacuum pump exhaust port filter element, characterized in that, Including the exhaust pipe (1) installed on the vacuum pump: The filter element assembly (2) is disposed inside the exhaust pipe (1) and includes a filter cartridge (201) disposed inside the exhaust pipe (1) and an upper filter layer (202), a middle filter layer (203) and a coarse filter layer (204) disposed inside the filter cartridge (201); The connecting component (3) is located outside the exhaust pipe (1) and is used to connect the filter cartridge (201) to the exhaust pipe (1).

2. The vacuum pump exhaust port filter element according to claim 1, characterized in that: The upper filter layer (202) is a multi-layer composite filter paper, the middle filter layer (203) is polyester fiber cotton, and the coarse filter layer (204) is a metal filter screen with a pore size of 50 to 100 μm.

3. The vacuum pump exhaust port filter element according to claim 1, characterized in that: The top of the filter cartridge (201) is detachably fitted with a sealing cap (205), and an activated carbon plate (206) is detachably fitted on the sealing cap (205).

4. The vacuum pump exhaust port filter element according to claim 1, characterized in that: An annular stabilizing plate (207) is fixedly connected to the outer surface of the filter cartridge (201), and the outer surface of the annular stabilizing plate (207) is in contact with the inner wall of the exhaust pipe (1).

5. The vacuum pump exhaust port filter element according to claim 1, characterized in that: The bottom end of the filter cartridge (201) is provided with a collection cover (208), and the top end of the collection cover (208) extends into the bottom end of the filter cartridge (201).

6. The vacuum pump exhaust port filter element according to claim 5, characterized in that: The inner side of the collection cover (208) is fixedly connected with a ring-shaped arrangement of hanging rods (209), and the bottom ends of a group of hanging rods (209) are fixedly connected with a ring-shaped scraper (210).

7. The vacuum pump exhaust port filter element according to claim 1, characterized in that: The connecting assembly (3) includes a connecting shell (301) disposed outside the top of the exhaust pipe (1). The inner side of the top of the connecting shell (301) is connected to the outer surface of the filter cartridge (201). The outer surface of the connecting shell (301) is threaded.

8. The vacuum pump exhaust port filter element according to claim 7, characterized in that: A fixing shell (302) is provided below the connecting shell (301), and the inner side of the fixing shell (302) is connected to the outer surface of the exhaust pipe (1). The outer surface of the fixing shell (302) is threaded, and the outer surface of the connecting shell (301) and the outer surface of the fixing shell (302) are threaded together to form a fixing cylinder (303).

9. The vacuum pump exhaust port filter element according to claim 7, characterized in that: The inner side of the connecting shell (301) is provided with a ring-shaped arrangement of positioning grooves (304), and each positioning groove (304) is provided with a positioning block (305). The side of each group of positioning blocks (305) that is close to each other is connected to the outer surface of the exhaust pipe (1).

10. The vacuum pump exhaust port filter element according to claim 1, characterized in that: The exterior of the exhaust pipe (1) is provided with sound-absorbing cotton (4).

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