Circulating filtering device for air purification of clean workshop

Abstract

The invention provides a circulating filtering device for air purification of a clean workshop, and relates to the technical field of air purification. The circulating filtering device for air purification of the clean workshop comprises a fixed mounting seat, two ash discharging main pipelines are fixedly connected to the upper surface of the fixed mounting seat, and an air filtering pipeline is arranged above each ash discharging main pipeline. According to the invention, part of dust-filtered air enters a second back-flushing pipe through a first back-flushing pipe and then enters an air outlet branch pipe at the front side through the second back-flushing pipe, and meanwhile, a second valve on a first ash discharging branch pipe at the left side is firstly opened, so that the air performs back-flushing on a first circular filter plate; and then the first valve on the first U-shaped filter pipe and the second valve on the second ash discharge branch pipe are opened, the second circular filter plate is subjected to back flushing, according to the mode, back flushing of all the circular filter plates is completed, the cleaning mode is convenient, the cleaning effect is good, and the air purification quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, in particular to a circulating filtering device for purifying air in a clean workshop. Background Art

[0002] Air purification has a great effect on improving people's living environment. Air purification refers to providing overall solutions such as sterilization and disinfection, dust reduction and haze removal, removal of harmful decoration residues and odors for various indoor environmental problems, improving living and office conditions, and enhancing physical and mental health. At present, clean workshops must ensure that bacteria, dust, etc. in the space are controlled within a certain range, so the requirements for purification devices are relatively high.

[0003] Patent announcement number CN222165078U relates to an air purification device for a clean workshop, including a device body, the device body includes a purification box and a motor, upper air inlet and upper air outlet are respectively provided on both sides of the upper end of the purification box, lower air inlet and lower air outlet are respectively provided on both sides of the lower end of the purification box, an upper fan is provided at the upper end of the purification box, and a heater is provided on one side of the upper fan, a lower fan is provided at the lower end of the purification box, and a humidifier is provided on one side of the lower fan, filters are provided on the inner sides of the upper air inlet and the lower air inlet, a threaded rod is provided at the lower end of the motor, and a scraper is screwed on the threaded rod, thereby, automatic cleaning of the outer surface of the filter can be achieved, without manual regular cleaning or replacement of the filter, and two-way air purification of the workshop and heating and humidification adjustment of the air can be achieved, the structure is simple and the operation is convenient, and the practicality and work efficiency of the device are improved.

[0004] In the above patent, the surface of the filter is cleaned by a scraper. The defects of this method are: 1. It is difficult for all the dust scraped off by the scraper to fall into the collection box. Some dust falls inside the device. Once wind blows in, the dust will fly everywhere; 2. When the scraper is scraping off the dust, some dust will enter the filter holes of the filter and even pass through the filter, affecting the cleaning effect of the filter. Summary of the invention

[0006] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a circulating filtration device for clean workshop air purification, which solves the problem in the prior art that the dust scraped off by the scraper is difficult to fall into the collection box, and some dust falls inside the equipment. Once wind blows in, the dust will fly everywhere; when the scraper scrapes the dust, some dust will enter the filter holes of the filter net, and even pass through the filter net, affecting the cleaning effect of the filter net.

[0007] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical scheme: a circulating filtration device for clean workshop air purification, comprising a fixed mounting seat, the upper surface of the fixed mounting seat is fixedly connected to two ash removal main pipes, an air filter pipe is arranged above each of the ash removal main pipes, one end of the air filter pipe is fixedly connected to an air intake branch pipe, the other end of the air filter pipe is fixedly connected to an air outlet branch pipe, the ends of the two air intake branches are commonly fixedly connected to an air intake main pipe, an air supply assembly connected to the air intake main pipe is installed on the upper surface of the fixed mounting seat, the ends of the two air outlet branches are commonly fixedly connected to the air outlet main pipe, one end of the air outlet main pipe is connected to an adsorption assembly, a recoil assembly is connected between the air outlet main pipe and the two air outlet branches, and the end of the ash removal main pipe is connected to an ash receiving assembly.

[0008] Preferably, the air filtration duct is composed of a plurality of U-shaped filter tubes, and the plurality of U-shaped filter tubes are arranged linearly and connected to each other, and the two U-shaped filter tubes located at the head and the tail are respectively fixedly connected to the air inlet branch pipe and the air outlet branch pipe, and a first valve is installed on the U-shaped filter tube, and an ash discharge branch pipe is fixedly connected to the bottom of the U-shaped filter tube, and the bottom end of the ash discharge branch pipe is fixedly connected to the ash discharge main pipe, and a second valve is installed on the ash discharge branch pipe, and the plurality of U-shaped filter tubes complete multi-stage filtration.

[0009] Preferably, the U-shaped filter tube consists of a first arc tube, a second arc tube and a vertical tube, the vertical tube is located in the middle of the first arc tube and the second arc tube, the outer surfaces of the first arc tube and the vertical tube are commonly threadedly connected with a first threaded ring, the outer surfaces of the second arc tube and the vertical tube are commonly threadedly connected with a second threaded ring, the inner wall of the vertical tube is threadedly connected with an internally threaded tube, the bottom of the internally threaded tube is fixedly connected with a circular filter plate, the first valve is installed on the second arc tube, the first threaded ring is rotated to disengage the first threaded ring from the outer surface of the vertical tube, and then the second threaded ring is rotated to disengage the second threaded ring from the outer surface of the vertical tube, at this time the vertical tube can be removed, and then the internally threaded tube inside the vertical tube is rotated and removed, and the internally threaded tube and the circular filter plate can be replaced.

[0010] Preferably, the air supply assembly includes an air pump body fixedly connected to the upper surface of the fixed mounting base, the inlet of the air pump body is fixedly connected to a first air pump pipe, the outlet of the air pump body is fixedly connected to a second air pump pipe, and one end of the second air pump pipe away from the air pump body is fixedly connected to an air intake main pipe. When the air pump body is started, the air to be filtered enters through the first air pump pipe, then enters the interior of the air intake main pipe through the second air pump pipe, and enters the two air intake branches through the air intake main pipe.

[0011] Preferably, the adsorption assembly includes a connecting rectangular seat fixedly connected to the side wall of the fixed mounting seat, the upper surface of the connecting rectangular seat is fixedly connected to an adsorption box, one side of the adsorption box is fixedly connected to a first air outlet pipe, one end of the first air outlet pipe away from the adsorption box is fixedly connected to one end of an air outlet main pipe, the other side of the adsorption box is fixedly connected to a second air outlet pipe, and a plurality of activated carbon adsorption plates are movably inserted inside the adsorption box, and harmful substances are adsorbed by the plurality of activated carbon adsorption plates.

[0012] Preferably, the recoil assembly includes a first recoil pipe fixedly connected to the middle part of the lower surface of the air outlet main pipe, the first recoil pipe is fixedly connected to a second recoil pipe at one end away from the air outlet main pipe, the two ends of the second recoil pipe are respectively fixedly connected to the two air outlet branch pipes, and the second recoil pipe is connected to two third valves, which are respectively located on both sides of the first recoil pipe. The ash enters the ash receiving barrel through the ash outlet connecting pipe for collection, and then the first valve on the first U-shaped filter pipe and the second valve on the second ash outlet branch pipe are opened to recoil the second circular filter plate. In this way, the recoil of all circular filter plates is completed, the cleaning method is convenient, the cleaning effect is good, and no excessive manual intervention is required.

[0013] Preferably, the ash receiving assembly includes an ash receiving barrel body, one side of the ash receiving barrel body is fixedly connected with a threaded connector, the end of the ash discharge main pipeline is fixedly connected with an ash discharge connecting pipe, the threaded connector is threadedly connected to the outer surface of the ash discharge connecting pipe, and a plurality of micro ventilation holes are provided on the side of the ash receiving barrel body away from the ash discharge connecting pipe, the plurality of micro ventilation holes are used to exhaust air and intercept dust and debris, and the threaded connector is threadedly connected to the ash discharge connecting pipe, so that the ash receiving barrel body can be removed and the dust and debris inside the ash receiving barrel body can be poured out.

[0014] Preferably, a fourth valve is installed on each of the two air inlet branch pipes, and a fifth valve is installed on each of the two air outlet branch pipes.

[0015] (III) Beneficial effects The present invention provides a circulating filter device for clean room air purification, which has the following beneficial effects: 1. In the present invention, the air that has partially filtered out dust enters the second recoil pipe through the first recoil pipe, and then enters the interior of the front air outlet branch pipe through the second recoil pipe. At the same time, the second valve on the first ash discharge branch pipe on the left is opened first, and the air enters the first circular filter plate for recoil, so that the dust and debris on the surface of the circular filter plate enters the interior of the ash discharge main pipeline through the ash discharge branch pipe, and then enters the interior of the ash receiving barrel through the ash discharge connecting pipe for collection, and then the first valve on the first U-shaped filter pipe and the second valve on the second ash discharge branch pipe are opened to enter the second circular filter plate for recoil. In this way, the recoil of all circular filter plates is completed, the cleaning method is convenient, the cleaning effect is good, and there is no need for excessive manual intervention.

[0016] 2. In the present invention, the first threaded ring is rotated to disengage the first threaded ring from the outer surface of the vertical tube, and then the second threaded ring is rotated to disengage the second threaded ring from the outer surface of the vertical tube. At this time, the vertical tube can be removed, and then the internal threaded tube inside the vertical tube is rotated and removed. The internal threaded tube and the circular filter plate can be replaced, and the replacement is convenient.

[0017] 3. In the present invention, a plurality of micro vents are used to exhaust air and intercept dust and debris, and the threaded connector is threadedly connected to the ash outlet connecting pipe, so that the ash receiving barrel can be removed and the dust and debris inside the ash receiving barrel can be poured out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a circulation filter device for clean room air purification provided by the present invention from a first perspective; Figure 2 A schematic diagram of the third perspective structure of a circulating filter device for clean room air purification provided by the present invention; Figure 3 A top view of a circulating filter device for clean room air purification provided by the present invention; Figure 4 A schematic diagram of the air filtration pipeline structure of a circulation filtration device for clean room air purification provided by the present invention; Figure 5 A schematic diagram of the structure of a U-shaped filter tube of a circulating filter device for clean room air purification provided by the present invention; Figure 6 A circulating filter device for clean workshop air purification provided by the present invention Figure 5 Enlarged view of point A in the middle.

[0019] Among them, 1. fixed mounting seat; 2. main ash discharge pipe; 3. air filter pipe; 4. air inlet branch pipe; 5. air outlet branch pipe; 6. U-shaped filter pipe; 7. ash discharge branch pipe; 8. ash outlet connecting pipe; 9. ash connecting barrel; 10. threaded connector; 11. main air inlet pipe; 12. main air outlet pipe; 13. vacuum pump body; 14. second vacuum pipe; 15. first recoil pipe; 16. second recoil pipe; 17. first air outlet pipe; 18. connecting rectangular seat; 19. adsorption box; 20. activated carbon adsorption plate; 61. first arc tube; 62. second arc tube; 63. vertical tube; 64. first threaded ring; 65. second threaded ring; 66. internal threaded pipe; 67. circular filter plate; 68. first valve. DETAILED DESCRIPTION

[0020] 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.

[0021] Example: like Figure 1-Figure 6As shown, an embodiment of the present invention provides a circulating filtration device for air purification in a clean workshop, comprising a fixed mounting seat 1, the upper surface of the fixed mounting seat 1 is fixedly connected to two ash discharge main pipes 2, an air filter pipe 3 is arranged above each ash discharge main pipe 2, one end of the air filter pipe 3 is fixedly connected to an air intake branch pipe 4, the other end of the air filter pipe 3 is fixedly connected to an air outlet branch pipe 5, the ends of the two air intake branch pipes 4 are commonly fixedly connected to an air intake main pipe 11, the air filter pipe 3 is composed of a plurality of U-shaped filter tubes 6, the plurality of U-shaped filter tubes 6 are linearly arranged and connected to each other, the two U-shaped filter tubes 6 located at the head and tail are respectively fixedly connected to the air intake branch pipe 4 and the air outlet branch pipe 5, the two air intake branch pipes 4 are both installed with a fourth valve, the two air outlet branch pipes 5 are both installed with a fifth valve, the U-shaped filter tube 6 is installed with a first valve 68, the bottom of the U-shaped filter tube 6 is fixedly connected to an ash discharge branch pipe 7, the bottom end of the ash discharge branch pipe 7 is fixedly connected to the ash discharge main pipe 2, and the exhaust A second valve is installed on the ash pipe 7. The U-shaped filter pipe 6 consists of a first arc pipe 61, a second arc pipe 62 and a vertical pipe 63. The vertical pipe 63 is located in the middle of the first arc pipe 61 and the second arc pipe 62. The outer surfaces of the first arc pipe 61 and the vertical pipe 63 are commonly threadedly connected with a first threaded ring 64. The outer surfaces of the second arc pipe 62 and the vertical pipe 63 are commonly threadedly connected with a second threaded ring 65. The inner wall of the vertical pipe 63 is threadedly connected with an internal threaded pipe 66. The bottom of the internal threaded pipe 66 is fixedly connected with a circular filter plate 67. The first valve 68 is installed on the second arc pipe 62. The first threaded ring 64 is rotated to disengage the first threaded ring 64 from the outer surface of the vertical pipe 63. The second threaded ring 65 is then rotated to disengage the second threaded ring 65 from the outer surface of the vertical pipe 63. At this time, the vertical pipe 63 can be removed, and then the internal threaded pipe 66 inside the vertical pipe 63 is rotated and removed. The internal threaded pipe 66 and the circular filter plate 67 can be replaced. An air supply assembly connected to the air intake manifold 11 is installed on the upper surface of the fixed mounting seat 1. The air supply assembly includes an air pump body 13 fixedly connected to the upper surface of the fixed mounting seat 1. The inlet of the air pump body 13 is fixedly connected to a first air extraction pipe. The outlet of the air pump body 13 is fixedly connected to a second air extraction pipe 14. One end of the second air extraction pipe 14 away from the air pump body 13 is fixedly connected to the air intake manifold 11. When the air pump body 13 is started, the air to be filtered enters through the first air extraction pipe, then enters the interior of the air intake manifold 11 through the second air extraction pipe 14, enters the two air intake branches 4 through the air intake manifold 11, and is filtered in sequence through a plurality of circular filter plates 67 when entering the respective air filter pipes 3. The ends of the two outlet branches 5 are fixedly connected to the outlet main pipe 12, one end of the outlet main pipe 12 is connected to the adsorption assembly, the adsorption assembly includes a connecting rectangular seat 18 fixedly connected to the side wall of the fixed mounting seat 1, the upper surface of the connecting rectangular seat 18 is fixedly connected to the adsorption box 19, one side of the adsorption box 19 is fixedly connected to the first outlet pipe 17, one end of the first outlet pipe 17 away from the adsorption box 19 is fixedly connected to one end of the outlet main pipe 12, the other side of the adsorption box 19 is fixedly connected to the second outlet pipe, and the adsorption box 19 is internally provided with a movable plug Multiple activated carbon adsorption plates 20, start the air extraction pump body 13, the air to be filtered enters through the first air extraction pipe, then enters the interior of the air intake manifold 11 through the second air extraction pipe 14, enters the two air intake branches 4 through the air intake manifold 11, and when entering the respective air filter pipes 3, it is filtered in turn through multiple circular filter plates 67, and then enters the interior of the air outlet manifold 12 through the air outlet branch pipe 5, and then enters the interior of the air outlet manifold 12 through the first air outlet pipe 17, and then passes through the multiple activated carbon adsorption plates 20 to adsorb harmful substances before being discharged; A recoil assembly is connected between the main air outlet pipe 12 and the two air outlet branch pipes 5, and the recoil assembly includes a first recoil pipe 15 fixedly connected to the middle part of the lower surface of the main air outlet pipe 12, and one end of the first recoil pipe 15 away from the main air outlet pipe 12 is fixedly connected to the second recoil pipe 16, and the two ends of the second recoil pipe 16 are respectively fixedly connected to the two air outlet branch pipes 5, and the second recoil pipe 16 is connected to two third valves, and the two third valves are respectively located on both sides of the first recoil pipe 15. The other part of the air that has filtered out dust enters the second recoil pipe 16 through the first recoil pipe 15, and then enters the interior of the front air outlet branch pipe 5 through the second recoil pipe 16. At the same time, the left side is opened first The second valve on the first ash discharge branch pipe 7 (counting from left to right) allows air to backwash the first circular filter plate 67, so that the dust and debris on the surface of the circular filter plate 67 enter the interior of the ash discharge main pipeline 2 through the ash discharge branch pipe 7, and then enter the interior of the ash receiving barrel 9 through the ash discharge connecting pipe 8 for collection, and then open the first valve 68 on the first U-shaped filter pipe 6 and the second valve on the second ash discharge branch pipe 7 (counting from left to right) to backwash the second circular filter plate 67. In this way, backwashing of all circular filter plates 67 is completed (counting from right to left, the spaces of the filter holes of multiple circular filter plates 67 are reduced in sequence, completing multi-stage filtration, so that Figure 1 perspective as an example); The end of the ash discharge main pipeline 2 is connected to an ash receiving assembly, and the ash receiving assembly includes an ash receiving barrel body 9, and a threaded connector 10 is fixedly connected to one side of the ash receiving barrel body 9. The end of the ash discharge main pipeline 2 is fixedly connected to an ash outlet connecting pipe 8, and the threaded connector 10 is threadedly connected to the outer surface of the ash outlet connecting pipe 8. A plurality of micro ventilation holes are provided on the side of the ash receiving barrel body 9 away from the ash outlet connecting pipe 8. The plurality of micro ventilation holes are used to exhaust air and intercept dust and debris, and the threaded connector 10 is threadedly connected to the ash outlet connecting pipe 8, so that the ash receiving barrel body 9 can be removed and the dust and debris inside the ash receiving barrel body 9 can be poured out.

[0022] Working principle: When the two air filter pipes 3 are working normally, the two fourth valves and the two fifth valves and all the first valves 68 are opened, and the vacuum pump body 13 is started. The air to be filtered enters through the first vacuum pipe, and then enters the interior of the air intake main pipe 11 through the second vacuum pipe 14, and enters the two air intake branches 4 through the air intake main pipe 11. When entering the respective air filter pipes 3, the air is filtered in turn through the multiple circular filter plates 67, and then enters the interior of the air outlet main pipe 12 through the air outlet branch pipe 5. The air then enters the interior of the adsorption box 19 through the first air outlet pipe 17, and is discharged after being adsorbed by harmful substances through the multiple activated carbon adsorption plates 20; When the front air filter duct 3 is closed for cleaning (with Figure 1 Taking the perspective as an example), close the fourth valve and the fifth valve on the front side and all the first valves 68 on the front air filter duct 3, open the third valve on the front side of the second recoil pipe 16, start the vacuum pump body 13, and the air to be filtered enters through the first vacuum pipe, and then enters the interior of the air intake main pipe 11 through the second vacuum pipe 14, enters the interior of the air intake branch pipe 4 on the rear side through the air intake main pipe 11, and then enters the air filter duct 3 on the rear side, is filtered in turn through multiple circular filter plates 67, and then enters the interior of the air outlet main pipe 12 through the air outlet branch pipe 5. At this time, a part of the air that has been filtered out of dust enters the interior of the adsorption box 19 through the first air outlet pipe 17, and is discharged after being adsorbed by harmful substances through multiple activated carbon adsorption plates 20. , the other part of the air that has filtered out dust enters the second recoil pipe 16 through the first recoil pipe 15, and then enters the front air outlet branch pipe 5 through the second recoil pipe 16. At the same time, the second valve on the first ash discharge branch pipe 7 on the left is opened first (counted from left to right), and the air enters the first circular filter plate 67 for recoil, so that the dust and debris on the surface of the circular filter plate 67 enter the interior of the ash discharge main pipeline 2 through the ash discharge branch pipe 7, and then enter the interior of the ash receiving barrel 9 for collection through the ash discharge connecting pipe 8, and then open the first valve 68 on the first U-shaped filter pipe 6 and the second valve on the second ash discharge branch pipe 7 (counted from left to right), and enter the second circular filter plate 67 for recoil. In this way, the recoil of all circular filter plates 67 is completed; Similarly, the circular filter plate 67 inside the rear air filter duct 3 can also be backwashed; Rotate the first threaded ring 64 to disengage the first threaded ring 64 from the outer surface of the vertical tube 63, and then rotate the second threaded ring 65 to disengage the second threaded ring 65 from the outer surface of the vertical tube 63. At this time, the vertical tube 63 can be removed, and then the internal threaded tube 66 inside the vertical tube 63 can be rotated and removed, and the internal threaded tube 66 and the circular filter plate 67 can be replaced.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising a reference structure" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulating filter device for purifying clean room air, comprising a fixed mounting seat (1), characterized in that: Two ash discharge main pipes (2) are fixedly connected to the upper surface of the fixed mounting seat (1), and an air filter pipe (3) is arranged above each of the ash discharge main pipes (2). One end of the air filter pipe (3) is fixedly connected to an air intake branch pipe (4), and the other end of the air filter pipe (3) is fixedly connected to an air outlet branch pipe (5). The ends of the two air intake branch pipes (4) are fixedly connected to an air intake main pipe (11). An air supply component connected to the air intake main pipe (11) is installed on the upper surface of the fixed mounting seat (1), and the ends of the two air outlet branch pipes (5) are fixedly connected to an air outlet main pipe (12). One end of the air outlet main pipe (12) is connected to an adsorption component. A recoil component is connected between the air outlet main pipe (12) and the two air outlet branch pipes (5). The ends of the ash discharge main pipes (2) are connected to an ash receiving component.

2. A circulating filter device for clean room air purification according to claim 1, characterized in that: The air filter duct (3) is composed of a plurality of U-shaped filter tubes (6), the plurality of U-shaped filter tubes (6) are arranged linearly and connected to each other, the two U-shaped filter tubes (6) located at the head and tail are respectively fixedly connected to the air inlet branch pipe (4) and the air outlet branch pipe (5), a first valve (68) is installed on the U-shaped filter tube (6), the bottom of the U-shaped filter tube (6) is fixedly connected to an ash discharge branch pipe (7), the bottom end of the ash discharge branch pipe (7) is fixedly connected to the ash discharge main pipe (2), and a second valve is installed on the ash discharge branch pipe (7).

3. A circulating filter device for clean room air purification according to claim 2, characterized in that: The U-shaped filter tube (6) is composed of a first arc-shaped tube (61), a second arc-shaped tube (62) and a vertical tube (63); the vertical tube (63) is located between the first arc-shaped tube (61) and the second arc-shaped tube (62); the outer surfaces of the first arc-shaped tube (61) and the vertical tube (63) are threadedly connected to a first threaded ring (64); the outer surfaces of the second arc-shaped tube (62) and the vertical tube (63) are threadedly connected to a second threaded ring (65); the inner wall of the vertical tube (63) is threadedly connected to an internal threaded tube (66); the bottom of the internal threaded tube (66) is fixedly connected to a circular filter plate (67); and the first valve (68) is mounted on the second arc-shaped tube (62).

4. A circulating filter device for clean room air purification according to claim 1, characterized in that: The air supply assembly comprises an air pump body (13) fixedly connected to the upper surface of a fixed mounting seat (1); an inlet of the air pump body (13) is fixedly connected to a first air pump pipe; an outlet of the air pump body (13) is fixedly connected to a second air pump pipe (14); an end of the second air pump pipe (14) away from the air pump body (13) is fixedly connected to an air intake manifold (11).

5. A circulating filter device for clean room air purification according to claim 1, characterized in that: The adsorption assembly comprises a connecting rectangular seat (18) fixedly connected to the side wall of the fixed mounting seat (1); an adsorption box (19) is fixedly connected to the upper surface of the connecting rectangular seat (18); a first air outlet pipe (17) is fixedly connected to one side of the adsorption box (19); an end of the first air outlet pipe (17) away from the adsorption box (19) is fixedly connected to one end of an air outlet main pipe (12); a second air outlet pipe is fixedly connected to the other side of the adsorption box (19); and a plurality of activated carbon adsorption plates (20) are movably inserted inside the adsorption box (19).

6. A circulating filter device for clean room air purification according to claim 1, characterized in that: The recoil assembly comprises a first recoil pipe (15) fixedly connected to the middle part of the lower surface of the gas outlet main pipe (12); one end of the first recoil pipe (15) away from the gas outlet main pipe (12) is fixedly connected to a second recoil pipe (16); two ends of the second recoil pipe (16) are respectively fixedly connected to two gas outlet branch pipes (5); the second recoil pipe (16) is connected to two third valves, and the two third valves are respectively located on both sides of the first recoil pipe (15).

7. A circulating filter device for clean room air purification according to claim 1, characterized in that: The ash receiving assembly comprises an ash receiving barrel body (9), one side of the ash receiving barrel body (9) is fixedly connected to a threaded connector (10), the end of the ash discharge main pipeline (2) is fixedly connected to an ash discharge connection pipe (8), the threaded connector (10) is threadedly connected to the outer surface of the ash discharge connection pipe (8), and a plurality of micro ventilation holes are provided on a side of the ash receiving barrel body (9) away from the ash discharge connection pipe (8).

8. The circulating filter device for clean room air purification according to claim 1, characterized in that: The two air inlet branch pipes (4) are both installed with a fourth valve, and the two air outlet branch pipes (5) are both installed with a fifth valve.

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