A device and method for efficiently cleaning filter cartridges

Abstract

The application relates to the technical field of filter cleaning, in particular to a device and method for cleaning filter cartridges with high efficiency, which comprises a lower fixed base plate, an upper fixed base plate, an air inlet pipeline, a fixed rod, a sealing plate, a handle, a fixed assembly and a limiting assembly; the lower fixed base plate and the upper fixed base plate are arranged in an upper-lower interval, and the fixed rod is connected between the lower fixed base plate and the upper fixed base plate to form a fixed space for placing filter cartridges between the lower fixed base plate and the upper fixed base plate. The filter cartridge mounting space is formed by the lower fixed base plate, the upper fixed base plate and the fixed rod, high-temperature compressed air and water vapor are sent into the filter cartridge by the air inlet pipeline, the cleaning medium passes through the filter cartridge hole from inside to outside, and can directly act on the deep residues in the filter cartridge; meanwhile, the sealing plate seals the upper end exhaust space, reduces the steam upward leakage pressure, and makes the steam more discharged through the filter cartridge wall surface, so that the cleaning pressure and the hole regeneration effect are improved.

Description

Technical Field

[0001] This invention relates to the field of filter cleaning technology, and specifically to a device and method for high-efficiency cleaning of filter elements. Background Technology

[0002] Filter cartridges are commonly used in the filtration process of polycarbonate, chemical fiber and other polymer melts. After long-term use, polymer residues, gel particles, coking products and other impurities are easily attached to the internal channels and outer walls of the filter cartridge. When the above residues continue to accumulate, the permeability of the filter cartridge will decrease and the filtration resistance will increase. In severe cases, it will also affect the filtration quality of the subsequent melt. Therefore, the filter cartridge needs to be cleaned and regenerated regularly.

[0003] Current cleaning methods mostly involve placing the disassembled filter element into a pyrolysis furnace or cleaning furnace, where high-temperature compressed air, steam, or hot air are used to heat, decompose, and flush the filter element, causing the residue on the filter element to hydrolyze, oxidize, or peel off. However, in actual cleaning, the high-temperature cleaning medium mostly flows in the external space of the filter element and is difficult to stably penetrate into the deep pores inside the filter element. As a result, the outer surface of the filter element can be cleaned to a certain extent, but polymer residues, gel particles, and coking products in the internal pores of the filter element are still difficult to be discharged, and the flow rate recovery effect of the filter element after cleaning is limited. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device and method for cleaning filter elements with high efficiency, which can effectively solve the problem that polymer residues, gel particles and coking products in the internal pores of filter elements are still difficult to be discharged in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a device for high-efficiency cleaning of filter elements, comprising:

[0007] The system includes a lower fixed chassis, an upper fixed chassis, an air intake pipe, a fixing rod, a sealing plate, a handle, a fixing assembly, and a limiting assembly. The lower and upper fixed chassis are spaced apart vertically, and the fixing rod connects the lower and upper fixed chassis to form a fixed space between them for placing the filter element. The air intake pipe communicates with the lower fixed chassis and is used to introduce high-temperature compressed air and water vapor into the filter element, allowing the high-temperature cleaning medium to pass through the filter element's channels from the inside to the outside. The sealing plate is located at the upper end of the upper fixed chassis, and the handle is symmetrically installed at the upper end of the upper fixed chassis to seal the upper exhaust space of the upper fixed chassis. The fixing assembly surrounds the outer periphery of the filter element to protect the outside of the filter element. The limiting assembly is located on the fixing assembly and can slide relative to the fixing assembly to form a shielding state or an exhaust gap state on the outside of the filter element, allowing the high-temperature cleaning medium passing through the outer wall of the filter element to be discharged outward through the exhaust gap.

[0008] Preferably, the lower fixed chassis and the upper fixed chassis are provided with air outlets, and the air inlet pipe is connected to the air outlet. High-temperature compressed air and water vapor enter through the air inlet pipe and then enter the filter element through the air outlet.

[0009] Preferably, the fixing assembly includes a rotating seat, a rotating ring, a connecting seat, and an arc-shaped cover. The rotating seat is disposed on the lower fixed base and the upper fixed base. The rotating ring is rotatably disposed on the rotating seat. The connecting seat is connected to the rotating ring. The arc-shaped cover is connected to the connecting seat and surrounds the outer periphery of the filter element.

[0010] Preferably, the arc-shaped cover is arranged circumferentially along the filter element, and a gap area is formed between the arc-shaped cover and the filter element for the discharge of high-temperature cleaning medium.

[0011] Preferably, the limiting component includes an inner groove and an arc-shaped plate. The inner groove is disposed on the arc-shaped cover, and the arc-shaped plate is slidably disposed in the inner groove. When the arc-shaped plate slides out of the inner groove, it can block the gap area between adjacent arc-shaped covers. When the arc-shaped plate slides into the inner groove, it can open the gap area between adjacent arc-shaped covers and form an exhaust gap.

[0012] Preferably, after the sealing plate seals the upper end of the fixed chassis, the high-temperature cleaning medium entering the filter element is blocked by the sealing plate, reducing direct leakage from the upper end of the fixed chassis. Under pressure, the medium passes through the filter element channel inside the filter element and is discharged through the exhaust gap, thereby increasing the exhaust pressure and the scouring intensity of the outer wall at the exhaust gap.

[0013] Preferably, the limiting assembly further includes a rotary joint, a rotary plate, and a limiting plate. The rotary plate is connected to the arc-shaped plate through the rotary joint, and the limiting plate is slidably disposed inside the rotary plate. The limiting plate can slide near or away from the outer periphery of the filter element on the rotary plate to limit the position of the outer periphery of the filter element.

[0014] Preferably, the fixing assembly further includes a toothed ring, an outer block, a rotary drive component, and a toothed head. The toothed ring is connected to the rotating ring, the outer block is disposed on the outside of the lower fixed chassis, the rotary drive component is disposed on the outer block, and the toothed head is connected to the output end of the rotary drive component and meshes with the toothed ring. The rotary drive component is used to drive the rotating ring to rotate through the toothed head and the toothed ring, so that the arc-shaped cover and the exhaust gap formed by the opening of the arc-shaped plate move along the outer periphery of the filter element.

[0015] A method for efficiently cleaning filter cartridges includes the following steps:

[0016] Place the filter element between the lower and upper fixed bases, maintaining the distance between them using a fixing rod. Adjust the fixing and limiting components so that the arc-shaped cover and limiting plate are located outside the filter element. Connect the air inlet pipe to the high-temperature compressed air and steam supply end, allowing the high-temperature cleaning medium to enter the filter element through the air inlet pipe and outlet. Under pressure, the high-temperature cleaning medium passes through the filter element channels from the inside to the outside, causing the polymer residues, gel particles, and coking products inside the filter element to undergo hydrolysis and oxidation and be discharged with the airflow. After cleaning, stop the air supply, wait for the filter element to cool down, remove it, and then perform subsequent water washing and drying.

[0017] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0018] First, the filter element installation space is formed by the lower fixed chassis, the upper fixed chassis, and the fixed rod. High-temperature compressed air and water vapor are sent into the filter element through the air intake pipe, so that the cleaning medium passes through the filter element pores from the inside to the outside and can directly act on the deep residues inside the filter element. At the same time, the sealing plate seals the upper exhaust space, reduces the upward leakage of steam, and allows more steam to be discharged through the filter element wall, thereby improving the cleaning pressure and pore regeneration effect.

[0019] Secondly, the high-temperature cleaning medium is guided into the filter element through the vent hole. The arc-shaped cover surrounds the outer perimeter of the filter element. After the arc plate slides in the inner groove, it can switch between the shielding state and the exhaust gap state, so that the steam passing through the outer wall of the filter element can be discharged in a concentrated manner. With the help of the rotating ring, toothed ring and toothed head, the exhaust gap moves along the outer perimeter of the filter element, which can circumferentially flush the residue on the outer wall and pores of the filter element, reducing secondary adhesion on the outer wall. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the fixed chassis of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the fixing component of the present invention;

[0024] Figure 4 This is a schematic diagram of the limiting component of the present invention.

[0025] Reference numerals: 1. Lower fixed chassis; 101. Upper fixed chassis; 102. Air inlet pipe; 103. Fixed rod; 104. Air outlet; 105. Handle; 106. Sealing plate; 2. Fixed assembly; 201. Rotating seat; 202. Rotating ring; 203. Connecting seat; 204. Arc-shaped cover; 3. Limiting assembly; 301. Inner groove; 302. Arc-shaped plate; 303. Rotary joint; 304. Rotating plate; 305. Limiting plate; 306. Gear ring; 307. External connecting block; 308. Rotation drive component; 309. Gear head. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] The present invention will be further described below with reference to embodiments.

[0028] Example: Refer to Figures 1 to 4 A device for high-efficiency cleaning of filter cartridges, comprising:

[0029] The system includes a lower fixed base 1, an upper fixed base 101, an air inlet pipe 102, a fixing rod 103, a sealing plate 106, a handle 105, a fixing assembly 2, and a limiting assembly 3. The lower fixed base 1 and the upper fixed base 101 are spaced apart vertically. The fixing rod 103 connects the lower fixed base 1 and the upper fixed base 101 to form a fixed space between them for placing the filter element. The air inlet pipe 102 is connected to the lower fixed base 1 and is used to introduce high-temperature compressed air and water vapor into the filter element, allowing the high-temperature cleaning medium to pass through the filter. The filter element has outward-permeable pores; a sealing plate 106 is disposed on the upper end of the upper fixed base 101, and the handle 105 is symmetrically installed on the upper end of the upper fixed base 101 to seal the upper exhaust space of the upper fixed base 101; a fixing component 2 is disposed around the outer periphery of the filter element to block the outer side of the filter element; a limiting component 3 is disposed on the fixing component 2 and can slide relative to the fixing component 2 to form a shielding state or an exhaust gap state on the outer side of the filter element, so that the high-temperature cleaning medium penetrating the outer wall of the filter element can be concentrated and discharged outward through the exhaust gap.

[0030] Reference Figures 1 to 2 The lower fixed chassis 1 and the upper fixed chassis 101 are provided with air outlets 104. The air inlet pipe 102 is connected to the air outlets 104. High-temperature compressed air and water vapor enter through the air inlet pipe 102 and then enter the filter element through the air outlets 104.

[0031] Reference Figure 3 The fixing component 2 includes a rotating seat 201, a rotating ring 202, a connecting seat 203, and an arc-shaped cover 204. The rotating seat 201 is disposed on the lower fixed base 1 and the upper fixed base 101. The rotating ring 202 is rotatably disposed on the rotating seat 201. The connecting seat 203 is connected to the rotating ring 202. The arc-shaped cover 204 is connected to the connecting seat 203 and surrounds the outer periphery of the filter element.

[0032] Reference Figure 3 The arc-shaped cover 204 is arranged around the filter element, and the arc-shaped cover 204 and the filter element form an interval area for the high-temperature cleaning medium to be discharged.

[0033] Reference Figures 2 to 3 The limiting component 3 includes an inner groove 301 and an arc-shaped plate 302. The inner groove 301 is disposed on the arc-shaped cover 204, and the arc-shaped plate 302 is slidably disposed in the inner groove 301. When the arc-shaped plate 302 slides out of the inner groove 301, it can block the gap area between adjacent arc-shaped covers 204. When the arc-shaped plate 302 slides into the inner groove 301, it can open the gap area between adjacent arc-shaped covers 204 and form an exhaust gap.

[0034] Reference Figures 1 to 2After the sealing plate 106 seals the upper end of the upper fixed base 101, the high-temperature cleaning medium entering the filter element is blocked by the sealing plate 106, reducing direct leakage from the upper end of the upper fixed base 101. Under pressure, it passes through the filter element channel inside the filter element and is discharged through the exhaust gap, thereby increasing the exhaust pressure and the scouring intensity of the outer wall at the exhaust gap. By sealing the upper end of the upper fixed base 101 with the sealing plate 106, the high-temperature cleaning medium entering the filter element is not easily leaked directly from the top. The cleaning medium can pass through the filter element channel inside the filter element and be discharged outward, thereby reducing the cleaning pressure loss caused by the pressure relief at the top.

[0035] Reference Figures 3 to 4 The limiting component 3 also includes a rotating joint 303, a rotating plate 304, and a limiting plate 305. The rotating plate 304 is connected to the arc-shaped plate 302 through the rotating joint 303. The limiting plate 305 is slidably disposed within the rotating plate 304. The limiting plate 305 can slide near or away from the outer periphery of the filter element on the rotating plate 304 to limit the position of the outer periphery of the filter element. The arc-shaped cover 204 surrounds the outer periphery of the filter element. The arc-shaped plate 302 can slide within the inner groove 301. By opening or blocking the arc-shaped plate 302, the size of the exhaust channel is changed, so that the discharged high-temperature steam forms a more concentrated scouring airflow in the local gap. This is beneficial for removing the coking matter, gel residue, and peeled impurities attached to the pores on the outer wall of the filter element, reducing the possibility of residues re-attaching to the outer surface of the filter element.

[0036] The fixing assembly 2 also includes a gear ring 306, an outer block 307, a rotary drive 308, and a gear head 309. The gear ring 306 is connected to the rotating ring 202. The outer block 307 is located on the outside of the lower fixed chassis 1. The rotary drive 308 is located on the outer block 307. The gear head 309 is connected to the output end of the rotary drive 308 and meshes with the gear ring 306. The rotary drive 308 is used to drive the rotating ring 202 to rotate through the gear head 309 and the gear ring 306, so that the arc-shaped cover 204 and the exhaust gap formed by the opening of the arc-shaped plate 302 move along the outer periphery of the filter element. The rotary drive 308 uses an existing motor. It should be noted that... During the cleaning of the filter element, the high-temperature compressed air or water vapor has a relatively high temperature, which will affect the operation of the motor. Therefore, the rotary drive 308 needs to be used with an external transmission rod. The rotary drive 308 drives the transmission rod to make the moving tooth head 309 drive the tooth ring 306 to rotate. This allows the rotary drive 308 to be kept away from the high-temperature area, so that the limiting component 3 and the fixed component 2 can rotate. In addition, the external transmission rod has a handle that can be manually cranked to drive the transmission, so that the limiting component 3 and the fixed component 2 can be driven to rotate in different ways under different conditions.

[0037] The working principle of this invention is as follows:

[0038] In use, the filter element to be cleaned is first placed between the lower fixed base 1 and the upper fixed base 101. The installation distance between the lower fixed base 1 and the upper fixed base 101 is maintained by the fixing rod 103, so that the filter element can be stably installed in the fixed space. Then, the air inlet pipe 102 is connected to the high-temperature compressed air or water vapor supply end. The high-temperature cleaning medium enters the lower fixed base 1 through the air inlet pipe 102 and enters the filter element through the air outlet 104. Under the action of pressure, the high-temperature cleaning medium enters the filter element and passes through the filter element pores from the inside to the outside. The polymer residues, gel particles and coking products attached to the deep pores inside the filter element are hydrolyzed, oxidized and peeled off after being heated, thereby completing the cleaning of the internal pores of the filter element.

[0039] After the filter element is installed in place, the fixing component 2 is located on the outer periphery of the filter element. The rotating seat 201 provides rotational support for the rotating ring 202. The rotating ring 202 drives the arc-shaped cover 204 to surround the outside of the filter element through the connecting seat 203. The arc-shaped cover 204 can shield and limit the outer periphery of the filter element, reducing the problem of the filter element shaking, tilting or colliding when high-temperature steam washes from the inside to the outside. An area is reserved between the arc-shaped cover 204 and the filter element to allow steam to be discharged, providing a channel for subsequent centralized exhaust cleaning.

[0040] The limiting component 3 is used to adjust the shielding state of the outer side of the arc-shaped cover 204. The inner groove 301 is set on the arc-shaped cover 204, and the arc-shaped plate 302 is slidably set in the inner groove 301. When it is necessary to shield a large area of ​​the outer periphery of the filter element, the arc-shaped plate 302 slides out from the inner groove 301 to shield the area between adjacent arc-shaped covers 204, so that the outer periphery of the filter element is in a relatively complete shielding state. When it is necessary to further flush and clean the outer wall of the filter element, the arc-shaped plate 302 slides into the inner groove 301, and an exhaust gap is formed between adjacent arc-shaped covers 204.

[0041] After the exhaust gap is formed, the sealing plate 106 seals the upper end of the upper fixed base 101, so that the high-temperature steam entering the filter element is not easy to be directly discharged from the upper end of the upper fixed base 101. Instead, it is forced to pass through the filter element channel from the inside of the filter element to the outside, and then be discharged in a concentrated manner through the exhaust gap formed by the arc cover 204 and the arc plate 302. Since the exhaust channel is restricted to a small gap position, the discharged high-temperature steam forms a high local flow velocity and scouring pressure at this position, which can further clean the coking residue, attached impurities and residues that have been peeled off from the channel on the outer wall of the filter element, and prevent the residues from remaining on the outer surface of the filter element.

[0042] When circumferential cleaning is required, the rotary drive 308 installed on the outer block 307 drives the toothed head 309 to rotate. After the toothed head 309 meshes with the toothed ring 306, it drives the rotating ring 202 to rotate relative to the rotating seat 201. The rotating ring 202 synchronously drives the connecting seat 203, the arc-shaped cover 204 and the exhaust gap formed by the opening of the arc-shaped plate 302 to rotate along the outer circumference of the filter element. As the exhaust gap moves circumferentially, the position where the high-temperature steam is concentrated and discharged also moves along the outer wall of the filter element, thereby sequentially flushing different positions on the outer circumference of the filter element, forming a circumferential array cleaning effect, and improving the cleanliness of the outer wall and orifice of the filter element.

[0043] The rotary joint 303, the rotating plate 304, and the limiting plate 305 are used to assist in limiting the outer periphery of the filter element. When the arc plate 302 moves or is adjusted, the rotating plate 304 can swing through the rotary joint 303, and the limiting plate 305 slides within the rotating plate 304 to approach the outer periphery of the filter element, thus limiting the position of the filter element. When it is necessary to remove the filter element, the limiting plate 305 moves away from the outer periphery of the filter element, and the arc plate 302 resets. The operator can use the handle 105 to assist in picking up or placing the device or to adjust the position of the device.

[0044] After cleaning, stop supplying high-temperature compressed air or water vapor to the air intake pipe 102. After the filter element and device have cooled down, open the sealing plate 106 to release the restrictions of the arc cover 204, arc plate 302 and limiting plate 305 on the outside of the filter element. Then remove the filter element from between the lower fixed base 1 and the upper fixed base 101. The removed filter element can continue to be ultrasonically washed and dried at high temperature to remove residual ash and attached impurities. Finally, it is placed for later use.

[0045] Overall, this device can not only achieve directional cleaning of the filter element from the inside out through the air inlet pipe 102 and the air outlet 104, but also form a rotatable centralized exhaust gap through the sealing plate 106, the arc-shaped cover 204 and the sliding arc-shaped plate 302 to further circumferentially flush and clean the outer wall of the filter element.

[0046] A method for efficiently cleaning filter cartridges includes the following steps:

[0047] Place the filter element between the lower fixed base 1 and the upper fixed base 101, and maintain the distance between the lower fixed base 1 and the upper fixed base 101 by the fixing rod 103; adjust the fixing component 2 and the limiting component 3 so that the arc-shaped cover 204 and the limiting plate 305 are located outside the filter element; connect the air inlet pipe 102 to the high-temperature compressed air and water vapor supply end, so that the high-temperature cleaning medium enters the filter element through the air inlet pipe 102 and the air outlet 104; under pressure, the high-temperature cleaning medium passes through the filter element pores from the inside of the filter element to the outside, so that the polymer residues, gel particles and coking products inside the filter element are hydrolyzed and oxidized and discharged with the airflow; after cleaning, stop the air supply, wait for the filter element to cool down, take it out, and perform subsequent water washing and drying treatment.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for high-efficiency cleaning of filter elements, characterized in that, include: The system includes a lower fixed chassis (1), an upper fixed chassis (101), an air intake pipe (102), a fixing rod (103), a sealing plate (106), a handle (105), a fixing component (2), and a limiting component (3). The lower fixed chassis (1) and the upper fixed chassis (101) are spaced apart vertically. The fixing rod (103) connects the lower fixed chassis (1) and the upper fixed chassis (101) to form a fixed space for placing the filter element between the lower fixed chassis (1) and the upper fixed chassis (101). The air intake pipe (102) is connected to the lower fixed chassis (1) and is used to introduce high-temperature compressed air and water vapor into the filter element for high-temperature cleaning. The medium passes through the filter element pores from the inside to the outside of the filter element; the sealing plate (106) is set at the upper end of the upper fixed base (101), and the handle (105) is symmetrically installed at the upper end of the upper fixed base (101) to close the upper exhaust space of the upper fixed base (101); the fixing component (2) is surrounded on the outer periphery of the filter element to block the outside of the filter element; the limiting component (3) is set on the fixing component (2), and the limiting component (3) can slide relative to the fixing component (2) to form a shielding state or an exhaust gap state on the outside of the filter element, so that the high-temperature cleaning medium passing through the outer wall of the filter element can be concentrated and discharged outward through the exhaust gap.

2. The apparatus for high-efficiency cleaning of filter elements according to claim 1, characterized in that, The lower fixed chassis (1) and the upper fixed chassis (101) are provided with air outlets (104). The air inlet pipe (102) is connected to the air outlet (104). High-temperature compressed air and water vapor enter through the air inlet pipe (102) and then enter the filter element through the air outlet (104).

3. The apparatus for high-efficiency cleaning of filter elements according to claim 1, characterized in that, The fixing component (2) includes a rotating seat (201), a rotating ring (202), a connecting seat (203), and an arc-shaped cover (204). The rotating seat (201) is disposed on the lower fixed base (1) and the upper fixed base (101). The rotating ring (202) is rotatably disposed on the rotating seat (201). The connecting seat (203) is connected to the rotating ring (202). The arc-shaped cover (204) is connected to the connecting seat (203) and surrounds the outer periphery of the filter element.

4. The apparatus for high-efficiency cleaning of filter elements according to claim 1, characterized in that, The arc-shaped cover (204) is arranged circumferentially along the filter element, and an interval area is formed between the arc-shaped cover (204) and the filter element for the discharge of high-temperature cleaning medium.

5. The apparatus for high-efficiency cleaning of filter elements according to claim 1, characterized in that, The limiting component (3) includes an inner groove (301) and an arc plate (302). The inner groove (301) is disposed on the arc cover (204), and the arc plate (302) is slidably disposed in the inner groove (301). When the arc plate (302) slides out of the inner groove (301), it can block the interval area between adjacent arc covers (204). When the arc plate (302) slides into the inner groove (301), it can open the interval area between adjacent arc covers (204) and form an exhaust gap.

6. The apparatus for high-efficiency cleaning of filter elements according to claim 1, characterized in that, After the sealing plate (106) seals the upper end of the upper fixed chassis (101), the high-temperature cleaning medium entering the filter element is blocked by the sealing plate (106) and its direct leakage from the upper end of the upper fixed chassis (101) is reduced. Under pressure, it passes through the filter element channel inside the filter element and is discharged through the exhaust gap, thereby increasing the exhaust pressure and the scouring strength of the outer wall at the exhaust gap.

7. The apparatus for high-efficiency cleaning of filter elements according to claim 1, characterized in that, The limiting component (3) further includes a rotating joint (303), a rotating plate (304), and a limiting plate (305). The rotating plate (304) is connected to the arc plate (302) through the rotating joint (303). The limiting plate (305) is slidably disposed inside the rotating plate (304). The limiting plate (305) can slide on the rotating plate (304) near or away from the outer periphery of the filter element to limit the position of the outer periphery of the filter element.

8. The apparatus for high-efficiency cleaning of filter elements according to claim 3, characterized in that, The fixing component (2) further includes a toothed ring (306), an outer block (307), a rotary drive (308), and a toothed head (309). The toothed ring (306) is connected to the rotating ring (202). The outer block (307) is located on the outside of the lower fixed chassis (1). The rotary drive (308) is located on the outer block (307). The toothed head (309) is connected to the output end of the rotary drive (308) and meshes with the toothed ring (306). The rotary drive (308) is used to drive the rotating ring (202) to rotate through the toothed head (309) and the toothed ring (306), so that the arc-shaped cover (204) and the exhaust gap formed by the opening of the arc-shaped plate (302) move along the outer periphery of the filter element.

9. A method for high-efficiency cleaning of a filter element using the apparatus according to any one of claims 1 to 8, characterized in that, Includes the following steps: Place the filter element between the lower fixed base (1) and the upper fixed base (101), and maintain the distance between the lower fixed base (1) and the upper fixed base (101) by the fixing rod (103); adjust the fixing component (2) and the limiting component (3) so that the arc cover (204) and the limiting plate (305) are located outside the filter element; connect the air inlet pipe (102) to the high temperature compressed air and water vapor supply end so that the high temperature cleaning medium enters the filter element through the air inlet pipe (102) and the air outlet (104); Under pressure, the high-temperature cleaning medium penetrates the filter element from the inside to the outside through the filter element pores, causing the polymer residues, gel particles and coking products inside the filter element to undergo hydrolysis and oxidation and be discharged with the airflow. After cleaning, the air supply is stopped, and the filter element is removed after cooling, followed by subsequent water washing and drying.

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