Intelligent Constant-Impurity Gas Purification Equipment and Method

Abstract

The present invention discloses an intelligent constant-impurity gas purification device and method, belonging to the field of gas filtration. It includes a base, on the upper surface of which two support columns are fixed. At the top of the two support columns, a filtration mechanism is fixedly provided together. A positioning mechanism is arranged on the outer surface of the filtration mechanism. On the upper surface of the right side of the base, a first support plate is fixed. On the left side of the first support plate, a first motor is fixed. At the left end of the output shaft of the first motor, a first gear is fixed. The front and rear ends of the first gear are both meshed with a second gear. On the right side of the rear second gear and on the left side of the front second gear, a second support plate is rotatably connected. Through the design of using a filter cloth spirally wound around the outer surface of the filter cylinder, combined with the spiral grooves and air channels on the filter cylinder, the present invention greatly increases the filtration area and the contact time between air and the filter cloth, effectively improving the filtration efficiency; by controlling the operating power of the fan, the constant purification effect can be accurately achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas filtration, and particularly to an intelligent constant-impurity gas purification device and method. Background Art

[0002] With the rapid development of modern industry and the continuous improvement of people's requirements for the quality of the living environment, the problem of impurity pollution in the air has attracted increasing attention. In the process of industrial production, such as in industries like chemical engineering, pharmaceuticals, and electronics manufacturing, a large amount of waste gas containing various harmful impurities (such as dust, smoke, harmful gases, etc.) is generated. If directly discharged without effective treatment, it will not only cause serious pollution to the surrounding environment but also endanger human health. In the civilian field, indoor air pollution has also become an important issue. For example, harmful substances such as formaldehyde and benzene released by decoration materials, as well as the intrusion of polluted outdoor air, all require efficient air purification equipment to ensure indoor air quality. Traditional air purification equipment has many deficiencies in terms of filtration efficiency, purification stability, and filter cloth replacement and maintenance, and it is difficult to meet the increasingly strict air quality standards and diverse usage requirements.

[0003] Traditional equipment often requires complex disassembly procedures for filter cloth replacement, which is time-consuming and laborious. Moreover, during the use of the filter cloth, problems such as insecure fixation and uneven stress are likely to occur, resulting in filter cloth damage or a decline in the filtration effect. At the same time, due to the lack of an effective filter cloth winding and sorting mechanism, the replaced filter cloth is difficult to be reused, increasing the operating cost. For example, the filter cloth replacement of some large industrial air purifiers requires professional technicians to operate with special tools, not only resulting in a long downtime but also a high cost for filter cloth replacement.

[0004] Therefore, there is a need for an intelligent constant-impurity gas purification device and method to solve the problems mentioned above. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an intelligent constant-impurity gas purification device and method, which solve the problems raised in the above background art.

[0006] Technical solution: To solve the above technical problems, according to one aspect of the present invention, more specifically, an intelligent constant impurity gas purification device, including a base, two pillars are fixed on the upper surface of the base, and a filtering mechanism is jointly fixed on the tops of the two pillars. A positioning mechanism is arranged on the outer surface of the filtering mechanism. A first support plate is fixed on the upper surface of the right side of the base. A first motor is fixed on the left side of the first support plate. The left end of the output shaft of the first motor is fixed with a first gear. The front and rear ends of the first gear are both meshed with a second gear. A second support plate is rotatably connected to the right side of the rear second gear and the left side of the front second gear. The bottoms of the two second support plates are both fixed to the base. A first rectangular rod is fixed in the middle of the second gear. A reel is slidably connected to the outer surface of the first rectangular rod;

[0007] The filtering mechanism includes a filter cylinder. A spiral groove is opened on the outer surface of the filter cylinder. A number of air channels are penetrated through the inner surface of the spiral groove. The inside of the air channels is communicated with the inside of the filter cylinder. Support cylinders are rotatably connected to the left and right ends of the filter cylinder respectively. A filter cloth is jointly wound on the outer surfaces of the two reels. The outer surface of the filter cloth is located inside the spiral groove. A fan is rotatably connected to the inside of the support cylinder. A second motor is fixed above the outer surface of the support cylinder. The bottom end of the output shaft of the second motor penetrates to the inside of the support cylinder and is fixed to the fan. A fixing ring is fixed on the outer surface of the support cylinder.

[0008] Furthermore, the positioning mechanism includes a sliding ring. The sliding ring is located on the outer surface of the support cylinder. A plurality of electric push rods are jointly fixed between the sliding ring and the fixing ring. A number of fixing blocks are fixed on the outer surface of the sliding ring. A connecting rod is rotatably connected to the outer surface of the fixing block. The opposite ends of the two symmetrically arranged connecting rods on the left and right are jointly rotatably connected to a cross bar. A roller is rotatably connected to the outer surface of the cross bar.

[0009] Furthermore, a toothed ring is fixed on the outer surface of the right end of the filter cylinder. The right end of the output shaft of the first motor penetrates to the right side of the first support plate and is fixed with a third gear. The top of the third gear is meshed with a fourth gear. The fourth gear is rotatably connected to the first support plate. The fourth gear is meshed with the toothed ring.

[0010] Furthermore, two chutes are penetratingly formed on the upper surface of the base. A through groove is formed at the left end of the rear chute and the right end of the front chute. A sliding frame is slidably connected inside the chute. A first limiting plate is integrally formed at the top of the sliding frame. The two first limiting plates are respectively located on the opposite sides of the two drums. Convex rods are fixed on the opposite sides of the two sliding frames. A second limiting plate and a fifth gear are fixed on the outer surface of the convex rod. The second limiting plate is fixedly connected to the fifth gear. The bottom end of the fifth gear is meshed with a sixth gear. The sixth gear is located inside the through groove. A rotating cylinder is fixed at the left end of the sixth gear. The rotating cylinder is rotatably connected to the inside of the sliding frame. A second rectangular rod is slidably connected inside the rotating cylinder. Two fourth support plates and two fifth support plates are fixed on the lower surface of the base. The fourth support plate is close to the chute. One end of the second rectangular rod away from the sixth gear penetrates to the other side of the fourth support plate and is fixed with a worm gear. A screw rod is threadedly connected above the inside of the sliding frame. Support plates three are fixed on the upper surface of the base on the opposite sides of the two sliding frames. One end of the screw rod away from the sliding frame penetrates to the other side of the support plate three and is fixed with a seventh gear. The seventh gear is meshed with the second gear. The seventh gear is rotatably connected to the support plate three. Worms are meshed with the bottoms of the two worm gears. The opposite ends of the two worms penetrate between the two fifth support plates and are jointly fixed with a rotating wheel.

[0011] Furthermore, the first limiting plate and the second limiting plate are respectively located on both sides of the drum, and the opposite sides of the first limiting plate and the second limiting plate are respectively attached to the left and right sides of the drum.

[0012] Furthermore, the outer surface of the roller is attached to the outer surface of the filter cylinder and the filter cloth.

[0013] Furthermore, four universal wheels are provided on the lower surface of the base.

[0014] According to another aspect of the present invention, more specifically, it is an intelligent constant impurity gas purification method. Using the intelligent constant impurity gas purification equipment, the following steps are included:

[0015] S1. Move the purification equipment to the area to be purified through the universal wheels;

[0016] S2. The operator controls the electric push rod to contract, so that the sliding ring slides, and through the connecting rod, the cross bar and the roller move away from the filter cylinder to create a space for the operator to place the telescopic filter cloth inside the spiral groove. The spiral groove blocks the air passage, and the cross bar and the roller are controlled to reset and fit the surface of the filter cloth;

[0017] S3. The two fans operate to exhaust air outward, creating a negative pressure state inside the filter cartridge. The outside air is attracted by the negative pressure, passes through the filter cloth, enters the air duct and then the inside of the filter cartridge in sequence, and is finally discharged by the fan, completing the gas circulation filtration;

[0018] S4. Through a set program, the first motor operates regularly and intermittently. When the first motor operates, the first gear and the third gear rotate through single-axis double output. The first gear drives the two second gears to rotate, and the two winding drums rotate driven by the first rectangular rod. One of the winding drums extends the filter cloth to supply the filter cloth that has not been used for filtration, and the other winding drum winds up the filter cloth that has been used for filtration; at the same time, driven by the third gear, the fourth gear and the toothed ring, the filter cartridge rotates, enabling the filter cloth on its outer side to move better, so as to continuously replace the used filter cloth and maintain an efficient filtration and purification effect.

[0019] The beneficial effects of the intelligent constant-impurity gas purification equipment and method of the present invention are as follows:

[0020] (1). By setting the design of winding the filter cloth spirally on the outer surface of the filter cartridge and combining the spiral grooves and the air duct on the filter cartridge, the present invention greatly increases the filtration area and the contact time between air and the filter cloth, effectively improving the filtration efficiency; by controlling the operating power of the fan, the constant purification effect can be accurately achieved, ensuring a stable output of the purified air volume that meets the requirements under different working conditions and meeting the application scenarios with strict requirements for air quality and flow rate.

[0021] (2). During the process of winding up the filter cloth, the first motor drives the gear transmission, causing the winding drum to rotate and wind up the used filter cloth. At the same time, through the linkage of a series of gears and screws, the carriage drives the winding drum to slide along the rectangular rod, enabling the filter cloth to be wound up on the winding drum in a spiral form evenly, avoiding problems such as filter cloth folding, uneven tightness, friction with the carriage, and excessive pulling caused by changes in the winding thickness. This not only facilitates the reuse of the filter cloth after cleaning but also reduces the damage of the filter cloth caused by improper winding, reducing the operating cost;

[0022] When disassembling the winding drum, the fixing of the winding drum by the limiting plate can be easily released by rotating the runner, facilitating the replacement of a new winding drum. The entire filter cloth replacement and maintenance setting can greatly improve the operability and maintenance convenience of the equipment.

[0023] (2) By setting the first motor as the power source, the present invention realizes the precise drive and coordinated operation of multiple components such as the winding drum and the filter drum through a combination of multiple gears; effectively avoiding equipment failures caused by uneven force or uncoordinated movement of a single component. When the filter cloth is wound up, the synchronous rotation of the filter drum effectively prevents the filter cloth from being deformed and damaged due to excessive pulling force, improving the stability and reliability of the equipment operation, and reducing the maintenance frequency and repair cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below with reference to the drawings and specific implementation methods.

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a schematic sectional view of the structure of the present invention;

[0027] Figure 3 is a schematic structural diagram of the filtering mechanism and the positioning mechanism in the present invention;

[0028] Figure 4 is a schematic structural diagram of the filtering mechanism and the winding drum in the present invention;

[0029] Figure 5 for the present invention Figure 4 is a schematic left view of the structure;

[0030] Figure 6 is a schematic structural diagram of the positioning mechanism in the present invention;

[0031] Figure 7 is a schematic structural diagram of the winding drum and the carriage in the present invention;

[0032] Figure 8 is a schematic sectional view of the structure of the winding drum and the carriage in the present invention;

[0033] Figure 9 is a schematic structural diagram of the base in the present invention;

[0034] Figure 10 is a schematic bottom view of the base in the present invention;

[0035] Figure 11 is a schematic structural diagram of the winding drum and the filter cloth in the present invention.

[0036] In the figure: 1, base; 2, support column; 3, filtering mechanism; 4, positioning mechanism; 5, first support plate; 6, first motor; 7, first gear; 8, second gear; 9, second support plate; 10, first rectangular rod; 11, winding drum; 12, filter cartridge; 13, spiral groove; 14, air duct; 15, support cylinder; 16, filter cloth; 17, fan; 18, second motor; 19, fixing ring; 20, slip ring; 21, electric push rod; 22, fixing block; 23, connecting rod; 24, cross bar; 25, roller; 26, third gear; 27, fourth gear; 28, toothed ring; 29, chute; 30, through groove; 31, sliding frame; 32, first limiting plate; 33, convex rod; 34, second limiting plate; 35, fifth gear; 36, sixth gear; 37, rotating cylinder; 38, second rectangular rod; 39, third support plate; 40, seventh gear; 41, screw; 42, fourth support plate; 43, worm gear; 44, worm; 45, fifth support plate; 46, runner; 47, universal wheel. Detailed implementation mode

[0037] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0038] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0039] Refer to Figures 1-11 , an intelligent constant-impurity gas purification device, including a base 1, two support columns 2 are fixed on the upper surface of the base 1, a filtering mechanism 3 is fixedly arranged on the tops of the two support columns 2, a positioning mechanism 4 is arranged on the outer surface of the filtering mechanism 3, a first support plate 5 is fixed on the right side of the upper surface of the base 1, a first motor 6 is fixed on the left side of the first support plate 5, a first gear 7 is fixed on the left end of the output shaft of the first motor 6, the front and rear ends of the first gear 7 are both meshed with a second gear 8, the right side of the rear second gear 8 and the left side of the front second gear 8 are both rotatably connected with a second support plate 9, the bottoms of the two second support plates 9 are both fixedly connected with the base 1, a first rectangular rod 10 is fixed in the middle of the second gear 8, and a winding drum 11 is slidably connected to the outer surface of the first rectangular rod 10;

[0040] The filtering mechanism 3 includes a filter cartridge 12. A spiral groove 13 is formed on the outer surface of the filter cartridge 12. A plurality of air channels 14 are formed through the inner surface of the spiral groove 13. The inside of the air channels 14 is communicated with the inside of the filter cartridge 12. Support cylinders 15 are rotatably connected to the left and right ends of the filter cartridge 12. A filter cloth 16 is wound around the outer surfaces of the two winding drums 11. The outer surface of the filter cloth 16 is located inside the spiral groove 13. A blower 17 is rotatably connected to the inside of the support cylinder 15. By controlling the operating power of the blower 17, a constant purification effect is achieved. Above the outer surface of the support cylinder 15, a second motor 18 is fixed. The bottom end of the output shaft of the second motor 18 penetrates into the support cylinder 15 and is fixedly connected to the blower 17. A fixing ring 19 is fixed to the outer surface of the support cylinder 15. According to needs, the second motor 18 is controlled to operate to rotate the blower 17, thereby controlling the blowing direction of the blower 17. When the two blowers 17 simultaneously input external gas into the filter cartridge 12, the gas will pass through the filter cloth 16 from the inside to the outside, leaving impurities inside the filter cartridge 12 and on the inner side of the filter cloth 16. When the two blowers 17 blow air outwards, the inside of the filter cartridge 12 is under negative pressure, and external gas will be attracted through the filter cloth 16 into the filter cartridge 12 through the air channels 14 and then discharged, enabling the blower 17 to output filtered air. The two filtering modes can be adjusted and used according to requirements;

[0041] The equipment has the filter cloth 16 spirally wound around the outside of the filter cartridge 12. When the blower 17 generates an air flow to drive the gas to pass through the filter cloth 16 spirally wound around the surface of the filter cartridge 12, the air flow will contact the filter cloth 16. Larger particles of impurities, due to greater inertia, are likely to collide with the fibers of the filter cloth 16 and be intercepted when the air flow changes direction. Smaller particles may diffuse to the fibers of the filter cloth 16 and be adsorbed due to Brownian motion or other reasons, thereby achieving the filtration of air impurities;

[0042] By changing parameters such as the material and pore size of different filter cloths 16, it is possible to adapt to different air flow rates, impurity concentrations and other conditions, and it has strong applicability.

[0043] Refer to Figures 2-6 As shown in [reference figure], the positioning mechanism 4 includes a slip ring 20. The slip ring 20 is located on the outer surface of the support cylinder 15. A plurality of electric push rods 21 are fixedly connected between the slip ring 20 and the fixing ring 19. A number of fixing blocks 22 are fixed to the outer surface of the slip ring 20. A connecting rod 23 is rotatably connected to the outer surface of the fixing block 22. The opposite ends of the two symmetrically arranged connecting rods 23 on the left and right are rotatably connected to a cross bar 24. A roller 25 is rotatably connected to the outer surface of the cross bar 24. The outer surface of the roller 25 is in contact with the outer surface of the filter cartridge 12 and the filter cloth 16. Under the limitation of the plurality of rollers 25, it is avoided that the filter cloth 16 is not firmly fixed and loosens, warps, displaces, etc. under the action of air flow, affecting the filtration effect. When the electric push rod 21 contracts, pulling the slip ring 20 to slide close to the filter cartridge 12, it will push against the connecting rod 23. The two sides of the connecting rod 23 rotate and the cross bar 24 and the roller 25 move outwards, away from the surface of the filter cartridge 12, thereby creating a certain space to facilitate personnel to thread a new filter cloth 16.

[0044] Refer to Figures 2-4 Figures 2-4 , on the outer surface of the right end of the filter cartridge 12, a toothed ring 28 is fixed. The right end of the output shaft of the first motor 6 penetrates to the right side of the first support plate 5 and is fixed with a third gear 26. The top of the third gear 26 is meshed and connected with a fourth gear 27. The fourth gear 27 is rotatably connected to the first support plate 5, and the fourth gear 27 is meshed and connected with the toothed ring 28. When the first motor 6 operates, through the sequential transmission of the third gear 26 and the fourth gear 27, the toothed ring 28 and the filter cartridge 12 will rotate, so as to cooperate with a winding drum 11 to pull the filter cloth 16 for winding operation, and also avoid the situation that the filter cloth 16 is over-pulled by the winding drum 11 to cause deformation. If the filter cartridge 12 is not driven to rotate by the toothed ring 28, when the winding drum 11 winds the filter cloth 16, it will drive the filter cartridge 12 to rotate. And the rotation of the filter cartridge 12 under the pulling force of the filter cloth 16 will generate a certain resistance, causing the filter cloth 16 to be stressed, which may cause damage to the filter cloth 16.

[0045] Refer to Figures 7-11 Figures 7-11 , on the upper surface of the base 1, two sliding grooves 29 are penetrated and opened. At the left end of the rear sliding groove 29 and the right end of the front sliding groove 29, through grooves 30 are opened. Inside the sliding grooves 29, a sliding frame 31 is slidably connected. On the top of the sliding frame 31, a first limiting plate 32 is integrally formed. The two first limiting plates 32 are respectively located on the opposite sides of the two winding drums 11. On the opposite sides of the two sliding frames 31, a convex rod 33 is fixed. On the outer surface of the convex rod 33, a second limiting plate 34 and a fifth gear 35 are fixed. The second limiting plate 34 is fixedly connected with the fifth gear 35. The bottom of the fifth gear 35 is meshed and connected with a sixth gear 36. The sixth gear 36 is located inside the through groove 30. The left end of the sixth gear 36 is fixed with a rotating cylinder 37. The rotating cylinder 37 is rotatably connected to the inside of the sliding frame 31. Inside the rotating cylinder 37, a second rectangular rod 38 is slidably connected. On the lower surface of the base 1, two fourth support plates 42 and two fifth support plates 45 are fixed. The fourth support plate 42 is close to the sliding groove 29. The end of the second rectangular rod 38 away from the sixth gear 36 penetrates to the other side of the fourth support plate 42 and is fixed with a worm gear 43. Above the inside of the sliding frame 31, a screw rod 41 is threadedly connected. On the upper surface of the base 1, on the opposite sides of the two sliding frames 31, third support plates 39 are fixed. The end of the screw rod 41 away from the sliding frame 31 penetrates to the other side of the third support plate 39 and is fixed with a seventh gear 40. The seventh gear 40 is meshed and connected with the second gear 8. The seventh gear 40 is rotatably connected to the third support plate 39. The bottoms of the two worm gears 43 are both meshed and connected with a worm 44. The opposite ends of the two worms 44 penetrate between the two fifth support plates 45 and are jointly fixed with a rotating wheel 46. The first limiting plate 32 and the second limiting plate 34 are respectively located on both sides of the winding drum 11, and the opposite sides of the first limiting plate 32 and the second limiting plate 34 are respectively in contact with the left and right sides of the winding drum 11;

[0046] When the motor 6 drives the gear 7 to rotate, and drives the two drums 11 to rotate through the two gears 8, when the unused section of the filter cloth 16 is lengthened and the used section of the filter cloth 16 is wound up respectively, the gear 40 is driven by the gear 8 to drive the screw 41 to rotate. The rotating screw 41 makes structures such as the carriage 31, the rotating cylinder 37, and the second limiting plate 34 slide along the chute 29 through the thread, and through the pushing of the first limiting plate 32, the drum 11 slides along the surface of the first rectangular rod 10, so that when the used filter cloth 16 is wound up, it can be evenly wrapped around the surface of the drum 11 in a spiral form, avoiding uneven winding, resulting in folding of the filter cloth 16, overfeeding or over-tightening, or the diameter of the cylindrical body formed after winding being too thick, resulting in contact friction with the carriage 31, and the thickness being too thick causing the circumference to change when rotating one circle, resulting in excessive pulling of the filter cloth 16 and other situations. Uniform winding is convenient for subsequent cleaning and reuse; when the drum 11 after winding or discharging the filter cloth 16 is disassembled, the operator can rotate the runner 46 to make the two worm gears 44 rotate, and under the drive of the worm wheel 43, the second rectangular rod 38 drives the rotating cylinder 37 and the gear 6 to rotate. Under the drive of the gear 5, the second limiting plate 34 rotates and no longer contacts the drum 11, and does not limit and fix it. The operator can then disassemble the drum 11 from the first rectangular rod 10 and replace it with a new drum 11 for use; when the carriage 31 drives the drum 11 to slide, the second rectangular rod 38 does not move, so that no matter what position the carriage 31 moves to, the second limiting plate 34 can be rotated through the rotation of the second rectangular rod 38 to release the limit of the drum 11; the limiting function of the second limiting plate 34 is to prevent the drum 11 from shaking when rotating; a magic tape can be set on the surface of the drum 11 as needed for the adhesion and fixation of the filter cloth 16.

[0047] Refer to Figures 1-2 , four universal wheels 47 are arranged on the lower surface of the base 1 for the movement of the equipment. The universal wheels 47 are driven by a motor and can be adapted to an external air detection system control device for movement.

[0048] Refer to Figures 1-11 , an intelligent constant impurity gas purification method, using an intelligent constant impurity gas purification device, including the following steps:

[0049] S1. Move the purification device to the area to be purified through the universal wheels 47;

[0050] S2. The operator controls the electric push rod 21 to contract, so that the slip ring 20 slides, and through the connecting rod 23, the cross bar 24 and the roller 25 are moved away from the filter cartridge 12 to create space for the operator to place the telescopic filter cloth 16 inside the spiral groove 13. The spiral groove 13 blocks the air passage 14, and controls the cross bar 24 and the roller 25 to reset and fit the surface of the filter cloth 16;

[0051] S3. The two fans 17 operate to exhaust air outward, creating a negative pressure state inside the filter cartridge 12. The external gas is attracted by the negative pressure, passes through the filter cloth 16, enters the air duct 14 and then the inside of the filter cartridge 12 in sequence, and is finally discharged by the fan 17 to complete the gas circulation filtration.

[0052] S4. Through a set program, the first motor 6 runs regularly and intermittently. When the first motor 6 runs, the first gear 7 and the third gear 26 rotate through single-axis double output. The first gear 7 drives the two second gears 8 to rotate, and the two winding drums 11 rotate driven by the first rectangular rod 10. One of the winding drums 11 extends the filter cloth 16 to supply the filter cloth 16 that has not been used for filtration, and the other winding drum 11 winds up the filter cloth 16 that has been used for filtration. At the same time, driven by the third gear 26, the fourth gear 27 and the toothed ring 28, the filter cartridge 12 rotates, enabling the filter cloth 16 on its outer side to move better, so as to continuously replace the used filter cloth 16 and maintain an efficient filtration and purification effect.

[0053] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. An intelligent constant amount impurity gas purification device, comprising a base (1), characterized in that: Two pillars (2) are fixed on the upper surface of the base (1), and a filtering mechanism (3) is fixed on the top of the two pillars (2). A positioning mechanism (4) is arranged on the outer surface of the filtering mechanism (3). A support plate (5) is fixed on the right side of the upper surface of the base (1), and a motor (6) is fixed on the left side of the support plate (5). A gear (7) is fixed on the left end of the output shaft of the motor (6). The front and rear ends of the gear (7) are meshedly connected with a gear (8). The right side of the rear gear (8) and the left side of the front gear (8) are both rotatably connected with a support plate (9). The bottom ends of the two support plates (9) are fixedly connected with the base (1). A rectangular rod (10) is fixed on the middle of the gear (8), and a reel (11) is slidably connected to the outer surface of the rectangular rod (10). The filtering mechanism (3) comprises a filter cartridge (12), the outer surface of the filter cartridge (12) is provided with a spiral groove (13), the inner surface of the spiral groove (13) is penetrated by a plurality of air passages (14), the interior of the air passages (14) is connected with the interior of the filter cartridge (12), the left and right ends of the filter cartridge (12) are rotatably connected with support cylinders (15), the outer surfaces of the two winding cylinders (11) are jointly rolled with filter cloth (16), the outer surface of the filter cloth (16) is located inside the spiral groove (13), the interior of the support cylinder (15) is rotatably connected with a fan (17), a second motor (18) is fixed above the outer surface of the support cylinder (15), the bottom end of the output shaft of the second motor (18) penetrates into the interior of the support cylinder (15) and is fixedly connected to the fan (17), and a fixing ring (19) is fixed to the outer surface of the support cylinder (15); Two slide grooves (29) are formed through the upper surface of the base (1), and a through-type through groove (30) is formed at the left end of the rear slide groove (29) and the right end of the front slide groove (29). A slide rack (31) is slidably connected inside the slide groove (29), and a limiting plate (32) is integrally formed on the top of the slide rack (31). The two limiting plates (32) are respectively located on opposite sides of the two reels (11). The two slide racks (31) are fixed with convex rods (33) on the opposite sides. The outer surface of the rod (33) is fixed with a second limiting plate (34) and a fifth gear (35), the second limiting plate (34) is fixedly connected to the fifth gear (35), the bottom end of the fifth gear (35) is meshingly connected with a sixth gear (36), the sixth gear (36) is located inside the through slot (30), a rotating drum (37) is fixed to the left end of the sixth gear (36), the rotating drum (37) is rotatably connected to the inside of the slide (31), and a rectangular rod (38) is slidably connected inside the rotating drum (37). ), two support plates four (42) and two support plates five (45) are fixed on the lower surface of the base (1), the support plate four (42) is close to the slide groove (29), the end of the rectangular rod two (38) away from the gear six (36) passes through the other side of the support plate four (42) and is fixed with a worm gear (43), the upper part of the slide (31) is threadedly connected with a screw rod (41), and the upper surface of the base (1) is located on the opposite sides of the two slides (31) and is fixed with support plates three (39) The end of the screw rod (41) away from the slide (31) passes through the other side of the support plate three (39) and is fixed with a gear seven (40), the gear seven (40) is meshed and connected with the gear two (8), the gear seven (40) is rotationally connected with the support plate three (39), the bottoms of the two worm wheels (43) are meshed and connected with a worm (44), the opposite ends of the two worm gears (44) pass through between the two support plates five (45), and are commonly fixed with a rotating wheel (46).

2. The intelligent constant impurity gas purification equipment according to claim 1 is characterized by: The positioning mechanism (4) comprises a slip ring (20), the slip ring (20) being located on the outer surface of the support tube (15), a plurality of electric push rods (21) being fixed between the slip ring (20) and the fixed ring (19), a plurality of fixed blocks (22) being fixed on the outer surface of the slip ring (20), the outer surface of the fixed block (22) being rotatably connected to a connecting rod (23), the opposite ends of two symmetrical connecting rods (23) being rotatably connected to a cross bar (24), the outer surface of the cross bar (24) being rotatably connected to a roller (25).

3. The intelligent constant impurity gas purification equipment according to claim 2 is characterized by: A gear ring (28) is fixed on the outer surface of the right end of the filter cartridge (12); the right end of the output shaft of the motor (6) passes through the right side of the support plate (5) and is fixed with a gear three (26); the top end of the gear three (26) is meshingly connected with a gear four (27); the gear four (27) is rotationally connected to the support plate (5); and the gear four (27) is meshingly connected to the gear ring (28).

4. The intelligent constant impurity gas purification equipment according to claim 3 is characterized by: The first limiting plate (32) and the second limiting plate (34) are respectively located on both sides of the reel (11), and the opposite sides of the first limiting plate (32) and the second limiting plate (34) are respectively in contact with the left and right sides of the reel (11).

5. The intelligent constant impurity gas purification equipment according to claim 4 is characterized by: The outer surface of the drum (25) is in contact with the outer surface of the filter cartridge (12) and the filter cloth (16).

6. The intelligent constant impurity gas purification equipment according to claim 5 is characterized by: The lower surface of the base (1) is provided with four universal wheels (47).

7. An intelligent constant impurity gas purification method, using the intelligent constant impurity gas purification device as claimed in claim 6, characterized in that: The steps include: S1, moving the purification device to the area to be purified by means of the universal wheel (47); S2, a person controls the electric push rod (21) to retract, so that the slip ring (20) slides, and uses the connecting rod (23) to move the cross bar (24) and the roller (25) away from the filter cartridge (12), thereby creating space for the person to place the telescopic filter cloth (16) inside the spiral groove (13), so that the spiral groove (13) shields the airway (14), and controls the cross bar (24) and the roller (25) to reset and fit the surface of the filter cloth (16); S3, the two fans (17) operate to exhaust air to the outside, so that the inside of the filter cartridge (12) is in a negative pressure state, and the external air is attracted by the negative pressure, filtered by the filter cloth (16), and then enters the air duct (14), the inside of the filter cartridge (12) in sequence, and is finally discharged by the fans (17), thereby completing the gas circulation filtration; S4, and by setting a program, the motor 1 (6) is made to run regularly and intermittently. When the motor 1 (6) is running, the gear 1 (7) and the gear 3 (26) are rotated through the single-shaft dual output. The gear 1 (7) drives the two gear 2 (8) to rotate, and then the two reels (11) are rotated under the drive of the rectangular rod 1 (10). One of the reels (11) extends the filter cloth (16) to supply the filter cloth (16) that has not been filtered, and the other reel (11) reels the filter cloth (16) to collect the filter cloth (16) after filtering. At the same time, under the transmission of the gear 3 (26), the gear 4 (27) and the gear ring (28), the filter cartridge (12) is rotated so that the filter cloth (16) on the outside can be moved better, thereby realizing the continuous replacement of the filter cloth (16) after use and maintaining a high-efficiency filtering and purification effect.

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