Inlet gas filtering device of gas compressor

Abstract

The invention discloses a gas compressor inlet air filtering device, and relates to the technical field of compressor inlet air filtering, the gas compressor inlet air filtering device comprises a base, a support frame, a fixed sleeve, a rotating sleeve, a filter screen, a partition plate, an air inlet pipe and a backflushing pipe, one side of the fixed sleeve is provided with a vent hole and an ash discharge hole, and the other side of the fixed sleeve is provided with an air inlet hole and a backflushing hole; the rotating sleeve is rotatably arranged in the fixed sleeve, the filter screen is fixedly arranged at one end of the rotating sleeve, the partition plates are fixedly arranged in the rotating sleeve and divide the rotating sleeve into a plurality of independent cavities, and one end of the air inlet pipe and one end of the backflushing pipe are slidably arranged in the air inlet hole and the backflushing hole respectively. And the other ends of the air inlet pipe and the back-flushing pipe are propped against the filter screen. The back-flushing cleaning process of the air inlet filtering device does not need to stop the operation of the compressor, so that the production continuity is ensured, the production efficiency is improved, the production stagnation time caused by shutdown is reduced, the overall production efficiency is improved, and the economic loss caused by shutdown is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of compressor intake filtering, and in particular to an intake filtering device for a gas compressor. Background Art

[0002] Gas compressors are widely used in industrial production, and the quality of their intake air has a crucial impact on the performance and service life of the compressor. If the intake air contains a large amount of dust, impurities and other particles, it will cause increased wear of the internal components of the compressor, such as the cylinder, piston, and valve, etc., reducing the efficiency of the compressor and increasing equipment maintenance costs and downtime.

[0003] The air intake filter usually adopts a simple filter structure, which often faces the problem of filter hole clogging after long-term use. As impurities in the air are constantly adsorbed on the surface of the filter hole, the permeability of the filter hole will gradually decrease over time, which will affect the gas circulation efficiency and may even cause the compressor performance to decline or malfunction.

[0004] The traditional practice is to shut down the machine regularly, remove and clean the filter element. Stopping the machine for cleaning will affect the continuity and efficiency of the production line, causing unnecessary losses to production. Secondly, the process of removing and cleaning the filter element is cumbersome and time-consuming, which increases maintenance costs. In addition, the dust and impurities generated during the cleaning process are difficult to collect effectively, which can easily pose a potential threat to the environment and the health of operators. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a gas compressor air intake filter device, which solves the problem of regular shutdown, removal and cleaning of the filter core.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present invention, a gas compressor air intake filter device is proposed, including a base, a support frame, a fixed sleeve, a rotating sleeve, a filter, a partition plate, an intake pipe and a recoil pipe, the base is fixedly connected to the compressor body, the support frame is fixedly connected to the base, the fixed sleeve is fixedly connected to the support frame, one side of the fixed sleeve is provided with an air vent and an ash discharge hole, the other side of the fixed sleeve is provided with an intake hole and a recoil hole, the rotating sleeve is rotatably set in the fixed sleeve, the filter is fixedly set at one end of the rotating sleeve, the partition plate is fixedly set in the rotating sleeve, and the partition plate divides the rotating sleeve into a plurality of independent chambers, one end of the intake pipe and the recoil pipe are respectively slidably set in the intake hole and the recoil hole, and the other ends of the intake pipe and the recoil pipe are abutted against the filter.

[0007] As a further solution of the present invention: a rotating hole is provided on the top of the support frame, a rotating shaft is rotatably arranged in the rotating hole, the rotating shaft passes through the fixed sleeve and the rotating sleeve, the rotating shaft is rotatably connected with the fixed sleeve, and the rotating shaft is coaxially fixedly connected with the rotating sleeve. A rotating motor is fixedly arranged on the side of the support frame, and the output end of the rotating motor is coaxially fixedly connected with the rotating shaft.

[0008] As a further solution of the present invention: a first slide groove is provided in the air inlet, the air inlet pipe is slidably arranged in the first slide groove, a first elastic member is arranged in the first slide groove, and two ends of the first elastic member are respectively connected to the air inlet and the air inlet pipe. The first elastic member includes a first spring, one end of the first spring is connected to the air inlet, and the other end of the first spring is connected to the air inlet pipe.

[0009] As a further solution of the present invention: a second slide groove is provided in the recoil hole, the recoil tube is slidably arranged in the second slide groove, a second elastic member is arranged in the second slide groove, and both ends of the second elastic member are respectively connected to the recoil hole and the recoil tube. The second elastic member includes a second spring, one end of the second spring is connected to the recoil hole, and the other end of the second spring is connected to the recoil tube.

[0010] As a further solution of the present invention: a dust box is fixedly arranged on the top of the base, the top of the dust box is connected to the dust discharge hole, the dust box is provided with an exhaust slot, and a filter plate is arranged inside the dust box. A slot is arranged on the side of the dust box, an insert frame is arranged in the slot, and the filter plate is fixedly arranged at the bottom of the insert frame. A handle is fixedly arranged on the side of the insert frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The backwash cleaning process of the air intake filter device does not require stopping the operation of the compressor, avoiding the cumbersome process of stopping the traditional filter device to disassemble and clean the filter element. The compressor can complete the cleaning and maintenance of the filter without interrupting operation, ensuring the continuity of production, greatly improving production efficiency, greatly reducing the production downtime caused by downtime, improving overall production efficiency, and reducing economic losses caused by downtime.

[0013] 2. The partition plate divides the rotating sleeve into several independent chambers. By rotating the sleeve, a single or multiple chambers that need to be cleaned can be backwashed in a targeted manner, while other uncleaned chambers can still perform air intake filtration work normally, ensuring that the air intake volume of the compressor will not fluctuate greatly and maintaining the stability of the production process. At the same time, the independent chamber makes the cleaning of the filter more thorough and uniform, which can effectively avoid the problem of the overall filtration performance of the filter being reduced due to incomplete local cleaning, improve the cleaning effect and service life of the filter, and also reduce the energy consumption and the use of high-pressure gas during the cleaning process, further optimizing the operating cost and maintenance cost of the device.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 The present invention is a three-dimensional structural schematic diagram of an air intake filter device for a gas compressor.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the dust collecting box in the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixed sleeve in the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the rotating sleeve in the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the partition plate in the present invention.

[0021] Figure 6 It is a three-dimensional structural cross-sectional view of the air inlet in the present invention.

[0022] Figure 7 It is a three-dimensional structural cross-sectional view of the back punch hole in the present invention.

[0023] Reference numerals include:

[0024] 1. Base; 2. Support frame; 3. Fixed sleeve; 4. Rotating sleeve; 5. Filter; 6. Partition plate; 7. Inlet pipe; 8. Recoil pipe; 9. Vent hole; 10. Ash discharge hole; 11. Inlet hole; 12. Recoil hole; 13. Rotating shaft; 14. Rotating motor; 15. First slide slot; 16. First elastic member; 17. First spring; 18. Second slide slot; 19. Second elastic member; 20. Second spring; 21. Dust box; 22. Exhaust slot; 23. Filter plate; 24. Insert frame; 25. Slot; 26. Handle; 27. Compressor body. DETAILED DESCRIPTION

[0025] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 7 As shown, a gas compressor intake filter device includes a base 1, a support frame 2, a fixed sleeve 3, a rotating sleeve 4, a filter 5, a partition plate 6, an intake pipe 7 and a recoil pipe 8. The base 1 is fixedly connected to the compressor body 27, the support frame 2 is fixedly connected to the base 1, the fixed sleeve 3 is fixedly connected to the support frame 2, a vent hole 9 and an ash discharge hole 10 are opened on one side of the fixed sleeve 3, and an intake hole 11 and a recoil hole 12 are opened on the other side of the fixed sleeve 3. The rotating sleeve 4 is rotatably set in the fixed sleeve 3, the filter 5 is fixedly set at one end of the rotating sleeve 4, the partition plate 6 is fixedly set in the rotating sleeve 4, and the partition plate 6 divides the rotating sleeve 4 into a plurality of independent chambers, one end of the intake pipe 7 and the recoil pipe 8 are slidably set in the intake hole 11 and the recoil hole 12 respectively, and the other ends of the intake pipe 7 and the recoil pipe 8 are abutted against the filter screen 5.

[0027] The gas flows in from the vent hole 9 of the fixed sleeve 3. Since the rotating sleeve 4 can rotate freely in the fixed sleeve 3, the gas enters a specific chamber connected to the air inlet hole 11. In this chamber, dust and impurities are intercepted by the physical structure of the filter 5 and cannot pass through the filter 5, thus being blocked in the chamber of the rotating sleeve 4, while the clean gas can pass through the tiny pores of the filter 5 into the air inlet pipe 7 and be transported to the compressor along the air inlet pipe 7, ensuring that the purity of the gas inhaled by the compressor meets the requirements, reducing the wear and damage of the internal components of the compressor by impurities, and maintaining the normal working performance and efficiency of the compressor.

[0028] After the filter 5 has been used for a period of time, a lot of dust and impurities will accumulate on its surface, resulting in a decrease in the filtering effect. At this time, the filter 5 needs to be cleaned. By rotating the sleeve 4, the chamber that needs to be cleaned is connected to the recoil hole 12, and at the same time, the chamber that does not need to be cleaned is connected to the air inlet 11, thereby ensuring that the air intake of the compressor will not be completely interrupted during the cleaning process, and maintaining a certain air intake volume to ensure basic operation.

[0029] Next, the high-pressure gas is introduced into the recoil pipe 8, one end of which is tightly against the filter 5, and the high-pressure gas is ejected from the recoil pipe 8 at a high speed, rushing toward the surface of the filter 5. Since the high-pressure gas has a large impact force and energy, it can blow the dust impurities attached to the filter 5 away from the pores of the filter 5, so that they are separated from the surface of the filter 5. Driven by the airflow, these blown-off dust impurities are discharged to the outside of the device through the ash discharge holes 10 on the fixed sleeve 3, thereby completing the cleaning process of the filter 5, restoring the filter 5 to a better filtering state, and preparing for the next round of air intake filtration work. In addition, the entire recoil cleaning process does not require stopping the operation of the compressor, thereby ensuring the continuity of production.

[0030] The backwash cleaning process of the air intake filter device does not require stopping the operation of the compressor, thus avoiding the cumbersome process of stopping the traditional filter device to disassemble and clean the filter element. The compressor can complete the cleaning and maintenance of the filter 5 without interrupting operation, ensuring the continuity of production, greatly improving production efficiency, greatly reducing the production downtime caused by downtime, improving overall production efficiency, and reducing economic losses caused by downtime.

[0031] The partition plate 6 divides the rotating sleeve 4 into several independent chambers. By rotating the sleeve, a single or multiple chambers that need to be cleaned can be backwashed in a targeted manner, while other uncleaned chambers can still perform air intake filtration work normally, ensuring that the air intake volume of the compressor will not fluctuate greatly and maintaining the stability of the production process. At the same time, the independent chamber makes the cleaning of the filter 5 more thorough and uniform, which can effectively avoid the problem of the overall filtration performance of the filter 5 being reduced due to incomplete local cleaning, improve the cleaning effect and service life of the filter 5, and also reduce the energy consumption and the use of high-pressure gas during the cleaning process, further optimizing the operation cost and maintenance cost of the device.

[0032] refer to Figure 6 As shown, in some specific embodiments, a rotating hole is opened at the top of the support frame 2, and a rotating shaft 13 is rotatably arranged in the rotating hole. The rotating shaft 13 passes through the fixed sleeve 3 and the rotating sleeve 4. The rotating shaft 13 is rotatably connected with the fixed sleeve 3, and the rotating shaft 13 is coaxially fixedly connected with the rotating sleeve 4. A rotating motor 14 is fixedly arranged on the side of the support frame 2, and the output end of the rotating motor 14 is coaxially fixedly connected with the rotating shaft 13.

[0033] When the rotating motor 14 is started, the output shaft of the rotating motor 14 drives the rotating shaft 13 to rotate. Since the rotating shaft 13 and the rotating sleeve 4 are coaxially fixedly connected, the rotation of the rotating shaft 13 directly drives the rotating sleeve 4 to rotate synchronously in the fixed sleeve 3. This allows the specific chambers in the rotating sleeve 4 that need to be cleaned to be accurately connected to the recoil hole 12 on the fixed sleeve 3, while ensuring that the other chambers that do not need to be cleaned are still connected to the air inlet 11, preparing for the subsequent recoil cleaning process.

[0034] During the whole process, the fixed sleeve 3 remains relatively still, while the rotating sleeve 4 rotates smoothly and accurately driven by the rotating shaft 13, ensuring that the air intake filtration and backwash cleaning work can be carried out alternately in an orderly and efficient manner, and the various components of the whole device cooperate with each other to ensure that the gas compressor can continuously and stably obtain filtered pure intake air, or maintain basic intake requirements when cleaning the filter 5, without affecting the normal operation of the compressor.

[0035] refer to Figure 6 As shown, in some specific embodiments, a first slide groove 15 is provided in the air inlet hole 11, and the air inlet pipe 7 is slidably disposed in the first slide groove 15. A first elastic member 16 is disposed in the first slide groove 15, and both ends of the first elastic member 16 are respectively connected to the air inlet hole 11 and the air inlet pipe 7. The first elastic member 16 includes a first spring 17, one end of the first spring 17 is connected to the air inlet hole 11, and the other end of the first spring 17 is connected to the air inlet pipe 7.

[0036] When the gas enters the air inlet hole 11 through the air inlet pipe 7, certain forces will be generated, such as the impact force during the gas flow, the pressure change caused by the compressor suction, etc., which may cause the air inlet pipe 7 to have a slight displacement tendency.

[0037] At this time, the first spring 17 exerts its elasticity and can be stretched and deformed accordingly according to the magnitude and direction of the external force applied to the intake pipe 7. If the intake pipe 7 is subjected to an outward pulling force, the first spring 17 will be stretched, and the elastic force generated by itself will counteract the pulling force, thereby preventing the intake pipe 7 from excessively moving outward and departing from the normal working position; on the contrary, if the intake pipe 7 is subjected to an inward squeezing force, the spring will be compressed, and its elastic force will also be used to buffer the pressure.

[0038] The setting of the first spring 17 effectively buffers the external force influence on the intake pipe 7 caused by various unstable factors during the gas flow process, so that the intake pipe 7 can maintain a relatively stable position and good connectivity, ensuring the continuity and stability of the intake, while maintaining a stable abutment relationship between the intake pipe 7 and the filter 5.

[0039] refer to Figure 7As shown, in some specific embodiments, a second slide groove 18 is provided in the recoil hole 12, and the recoil tube 8 is slidably disposed in the second slide groove 18. A second elastic member 19 is disposed in the second slide groove 18, and both ends of the second elastic member 19 are respectively connected to the recoil hole 12 and the recoil tube 8. The second elastic member 19 includes a second spring 20, one end of the second spring 20 is connected to the recoil hole 12, and the other end of the second spring 20 is connected to the recoil tube 8.

[0040] When the filter 5 is backwashed, the high pressure gas rushes toward the filter 5 through the backwash pipe 8. Due to the impact of the backwash gas and the vibration of the device, the backwash pipe 8 is subjected to a certain force. At this time, the second spring 20 is elastically deformed according to the magnitude and direction of the force on the backwash pipe 8.

[0041] When the recoil tube 8 is subjected to an outward impact force, the second spring 20 will be stretched to generate an inward elastic force, which will buffer and limit the displacement of the recoil tube 8, prevent the recoil tube 8 from excessively moving outward, and avoid problems such as recoil gas leakage or failure to accurately act on the filter 5 due to excessive displacement of the recoil tube 8. Conversely, when the recoil tube 8 is subjected to an inward extrusion force, the second spring 20 will be compressed, and the outward elastic force generated by it will prevent the recoil tube 8 from excessively moving inward, avoid the recoil tube 8 from colliding with other components or causing structural damage, and maintain a stable abutment relationship between the recoil tube 8 and the filter 5.

[0042] refer to Figure 7 As shown, in some specific embodiments, a dust box 21 is fixedly arranged on the top of the base 1, the top of the dust box 21 is connected to the dust discharge hole 10, an exhaust slot 22 is provided on the dust box 21, and a filter plate 23 is arranged inside the dust box 21. A slot 25 is provided on the side of the dust box 21, an insert frame 24 is provided in the slot 25, and the filter plate 23 is fixedly arranged at the bottom of the insert frame 24. A handle 26 is fixedly arranged on the side of the insert frame 24.

[0043] When the filter screen 5 is backwashed, the high-pressure gas ejected from the backwash pipe 8 blows off the dust impurities attached to the filter screen 5. The blown-off dust impurities are discharged through the dust discharge hole 10 of the fixed sleeve 3 under the action of gravity and the airflow in the fixed sleeve 3.

[0044] Since the top of the dust box 21 is connected to the dust discharge hole 10, the dust impurities discharged from the dust discharge hole 10 will enter the dust box 21. The dust box 21 is a container specially used to collect dust impurities, providing a temporary storage space for the dust removed from the device to prevent the dust from dispersing in the surrounding environment and causing secondary pollution.

[0045] When the filter plate 23 needs to be cleaned or replaced after being used for a long time, the operator can pull the handle 26 to remove the insertion frame 24 from the slot 25, so as to conveniently clean or replace the filter plate 23.

[0046] In order to facilitate the understanding of the embodiments of the present invention by those skilled in the art, the working principle of the embodiments of the present invention is now described in combination with specific application scenarios:

[0047] After the gas compressor is started, the external gas first flows into the fixed sleeve 3 from the vent hole 9. Since the rotating sleeve 4 can rotate freely in the fixed sleeve 3, the gas will enter a specific chamber connected to the air inlet 11. The gas entering the chamber contains dust and impurities. When the gas hits the filter 5, the filter 5 uses the characteristics of its physical structure, such as fine pores, to intercept the dust and impurities and keep them inside the chamber of the rotating sleeve 4.

[0048] The clean gas is finally transported into the compressor along the intake pipe 7, providing the compressor with pure intake air, thereby reducing the wear and damage of impurities to the internal components of the compressor such as the cylinder, piston, and air valve, ensuring that the compressor operates at normal working performance and efficiency.

[0049] As the filter 5 is used for a longer time, more dust and impurities will gradually accumulate on its surface, resulting in a decrease in filtering effect. At this time, in order to clean the filter 5 without affecting the normal operation of the compressor, the output shaft of the rotating motor 14 drives the rotating shaft 13 to rotate. Since the rotating shaft 13 is coaxially fixedly connected with the rotating sleeve 4, the rotating sleeve 4 will rotate in the fixed sleeve 3 accordingly.

[0050] By rotating the rotary motor 14, the chamber that needs to be cleaned can be connected to the recoil hole 12, while the chamber that does not need to be cleaned can still maintain communication with the air inlet 11, ensuring that during the cleaning process, the compressor can still obtain filtered gas from other chambers to maintain a basic air intake volume.

[0051] The blown dust impurities are discharged through the dust discharge hole 10 of the fixed sleeve 3 under the drive of the airflow. Since the top of the dust box 21 is connected to the dust discharge hole 10, the dust impurities will enter the dust box 21. The dust box 21 plays a role in collecting dust impurities to prevent the dust impurities from spreading in the environment and causing secondary pollution. At the same time, the filter plate 23 is fixed to the bottom of the insertion frame 24. The insertion frame 24 is convenient for operators to replace and clean it through the setting of the slot 25 and the handle 26, ensuring that the filtering function of the dust box 21 is continuously effective.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A gas compressor air intake filter device, comprising a base (1), wherein the base (1) is fixedly connected to a compressor body (27), and characterized in that: The invention also comprises a support frame (2), a fixed sleeve (3), a rotating sleeve (4), a filter screen (5), a partition plate (6), an air inlet pipe (7) and a recoil pipe (8); the support frame (2) is fixedly connected to the base (1); the fixed sleeve (3) is fixedly connected to the support frame (2); one side of the fixed sleeve (3) is provided with an air vent (9) and an ash discharge hole (10); the other side of the fixed sleeve (3) is provided with an air inlet hole (11) and a recoil hole (12); the rotating sleeve (4) is fixedly connected to the base (1); the fixed sleeve (3) is fixedly connected to the support frame (2); a vent hole (9) and an ash discharge hole (10) are provided on one side of the fixed sleeve (3); an air inlet hole (11) and a recoil hole (12) are provided on the other side of the fixed sleeve (3); (4) is rotatably arranged in the fixed sleeve (3), the filter screen (5) is fixedly arranged at one end of the rotating sleeve (4), the partition plate (6) is fixedly arranged in the rotating sleeve (4), and the partition plate (6) divides the rotating sleeve (4) into a plurality of independent chambers, one end of the air intake pipe (7) and the recoil pipe (8) are slidably arranged in the air intake hole (11) and the recoil hole (12) respectively, and the other ends of the air intake pipe (7) and the recoil pipe (8) are in contact with the filter screen (5).

2. A gas compressor intake filter device according to claim 1, characterized in that: A rotating hole is provided at the top of the support frame (2), a rotating shaft (13) is rotatably arranged in the rotating hole, the rotating shaft (13) passes through the fixed sleeve (3) and the rotating sleeve (4), the rotating shaft (13) is rotatably connected to the fixed sleeve (3), and the rotating shaft (13) is coaxially fixedly connected to the rotating sleeve (4).

3. A gas compressor intake filter device according to claim 2, characterized in that: A rotating motor (14) is fixedly arranged on the side of the support frame (2), and the output end of the rotating motor (14) is coaxially fixedly connected to the rotating shaft (13).

4. The gas compressor intake filter device according to claim 1, characterized in that: A first slide groove (15) is provided in the air inlet hole (11), the air inlet pipe (7) is slidably arranged in the first slide groove (15), a first elastic member (16) is arranged in the first slide groove (15), and two ends of the first elastic member (16) are respectively connected to the air inlet hole (11) and the air inlet pipe (7).

5. A gas compressor intake filter device according to claim 4, characterized in that: The first elastic member (16) comprises a first spring (17), one end of the first spring (17) is connected to the air inlet hole (11), and the other end of the first spring (17) is connected to the air inlet pipe (7).

6. The gas compressor intake filter device according to claim 1, characterized in that: A second slide groove (18) is provided in the recoil hole (12), the recoil tube (8) is slidably arranged in the second slide groove (18), a second elastic member (19) is arranged in the second slide groove (18), and two ends of the second elastic member (19) are respectively connected to the recoil hole (12) and the recoil tube (8).

7. A gas compressor intake filter device according to claim 6, characterized in that: The second elastic member (19) comprises a second spring (20), one end of the second spring (20) is connected to the recoil hole (12), and the other end of the second spring (20) is connected to the recoil tube (8).

8. The gas compressor intake filter device according to claim 1, characterized in that: A dust box (21) is fixedly arranged on the top of the base (1); the top of the dust box (21) is connected to the dust discharge hole (10); an exhaust groove (22) is opened on the dust box (21); and a filter plate (23) is arranged inside the dust box (21).

9. The gas compressor intake filter device according to claim 8, characterized in that: A slot (25) is provided on the side of the dust collecting box (21), an insert frame (24) is arranged in the slot (25), and the filter plate (23) is fixedly arranged at the bottom of the insert frame (24).

10. The gas compressor intake filter device according to claim 9, characterized in that: A handle (26) is fixedly provided on the side of the insertion frame (24).

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