Device for reducing efficiency loss of PTFE sandwich membrane filter material and use method

Abstract

The invention discloses a device for reducing the efficiency loss of a PTFE sandwich membrane filter material and a use method, and belongs to the technical field of PTFE composite filter materials. Comprising a rack, an ultrasonic atomizer, a sterilization device, two groups of circulating fans and a diffusion cover, an ultrasonic atomizer and a sterilization device are arranged at the lower end of the rack, and the sterilization device is located on one side of the ultrasonic atomizer; the lower end of the diffusion cover is connected with the ultrasonic atomizer; the circulating fan is adjustably arranged at the rear end of the rack and located on the rear side of the diffusion cover, and a shell is arranged outside the circulating fan. The device is simple and reliable, the efficiency loss in the production process of the composite membrane filter material can be greatly reduced, and the enterprise revenue is remarkably improved; the device is high in automation degree, the filter material can be humidified and cooled only by penetrating the PTFE composite filter material through the diffusion cover, and convenience and rapidness are achieved; according to the device, cold air of an air conditioner is not needed in the cooling process, the good cooling and humidifying effect is achieved under the extremely low energy consumption, and the static electricity elimination rate is high.

Description

Technical Field

[0001] The invention belongs to the technical field of PTFE composite filter materials, and in particular relates to a device for reducing the efficiency loss of PTFE sandwich membrane filter materials and a use method thereof. Background Art

[0002] With the development of the economy and society, people pay more and more attention to the quality of life and put forward higher requirements for the working and living environment. Therefore, how to purify the air has become the focus of research for scientific researchers.

[0003] There are many kinds of air filter materials at present, and common filter materials include glass fiber, melt-blown, filter paper, etc. However, glass fiber cannot fully meet the filtering needs due to boron pollution, and melt-blown cannot fully meet the filtering needs due to weather resistance, and the filter materials need to be replaced frequently. PTFE composite materials can be washed and reused many times, which greatly reduces the cost of use and is deeply loved by consumers. However, PTFE composite filter elements, especially sandwich membrane filter materials, have serious efficiency losses during the production process, making it difficult to produce high-grade filter materials of U15 and above. The reason is that they are rolled up before being completely cooled after hot compressing, resulting in slippage and membrane breakage between the membrane and the substrate; on the other hand, PTFE composite filter materials have poor conductivity, and the subsequent slitting process will also cause efficiency loss due to electrostatic breakdown.

[0004] Therefore, there is an urgent need for a device and a method for reducing the efficiency loss of PTFE sandwich membrane filter materials to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a device and a method for reducing the efficiency loss of PTFE sandwich membrane filter material to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for reducing the efficiency loss of PTFE sandwich membrane filter material, comprising a frame, an ultrasonic atomizer, a sterilization device, two sets of circulation fans and a diffusion cover; the lower end of the frame is provided with an ultrasonic atomizer and a sterilization device, and the sterilization device is located on one side of the ultrasonic atomizer; the lower end of the diffusion cover is connected to the ultrasonic atomizer; the circulation fan is adjustably arranged at the rear end of the frame, the circulation fan is located on the rear side of the diffusion cover, and a shell is arranged outside the circulation fan.

[0007] The bottom of the frame is provided with a universal roller, a supporting plate is welded below the frame, and slide rails are arranged on both sides of the supporting plate; straight slot parts are arranged on both sides of the ultrasonic atomizer, and the slide rails are arranged in the straight slot parts through bolts.

[0008] The straight slot piece is an L-shaped structure, one end of the straight slot piece is fixed to the side of the ultrasonic atomizer, and the other end of the straight slot piece is provided with a straight slot one; the slide rails are located on both sides of the bottom of the ultrasonic atomizer, and the slide rails and the straight slot one are adapted to each other.

[0009] The sterilization device is arranged on the right side of the ultrasonic atomizer through a fixing part, and the sterilization device includes a water inlet pipe, a sterilant storage tank, a mixing tank, an adjusting device and a mixing tube; a sterilant storage tank is arranged at the upper end of the mixing tank, and the mixing tank is connected to the ultrasonic atomizer through the mixing tube; the water inlet pipe is arranged on the side of the mixing tank opposite to the mixing tube; an adjusting device is arranged between the sterilant storage tank and the mixing tank.

[0010] The diffusion cover includes a mist channel, a top outlet and an air guide plate assembly; the top end of the air guide plate assembly is provided with a top outlet, the bottom end of the air guide plate assembly is provided with a mist channel, and the mist channel, the top outlet and the air guide plate assembly are connected.

[0011] The air guide plate assembly comprises an air guide plate and an air guide plate shell. The air guide plate gap is arranged in the air guide plate shell, and two ends of the air guide plate are respectively located near the mist channel and the two ends of the top outlet.

[0012] An assembly plate is welded above both sides of the rear end of the frame, and a segmented slot and two straight slots are opened on the assembly plate, and the segmented slot is located on the side close to the diffusion cover; the circulation fan is set in the segmented slot by bolts; a guide shaft is set between the two straight slots; both ends of the guide shaft are set in the two straight slots by bolts, and the angle of the PTFE composite filter material is adjusted by adjusting the height of the guide shaft.

[0013] A power adjustment knob is arranged above the ultrasonic atomizer.

[0014] A method for using a device for reducing the efficiency loss of a PTFE sandwich membrane filter material, characterized in that it comprises the following steps: S1, configuring the cooling device for reducing the efficiency loss of the PTFE sandwich membrane filter material, that is, the device described in the present invention; S2. Push the cooling device to the front of the external hot compress machine rewinding rack. After confirming the position, lock the universal roller under the rack. S3, leading the PTFE composite filter material from the hot compress machine to the guide shaft, and then passing through the external guide roller to the external winding mechanism; S4. Push the ultrasonic atomizer and adjust the height of the guide shaft to make the PTFE composite filter material fit the diffusion cover; adjust the shell angle outside the circulation fan to make it parallel to the filter material; S5. Turn on the ultrasonic atomizer, sterilization device, circulation fan, and external winding mechanism, and set the corresponding working parameters according to the vehicle speed.

[0015] The working current adjustment range of the ultrasonic atomizer is 1.0-2.0A; the spraying amount of the ultrasonic atomizer is 1.0-8.0 g / s; the wind speed adjustment range of the circulating fan is 1-5 gears, and the vehicle speed setting range is 2.0-10.0 m / min.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The device of the present invention is simple and reliable, and can greatly reduce the efficiency loss in the production process of composite membrane filter materials, thus significantly improving the benefits of enterprises. The device of the present invention has a high degree of automation, and the filter material humidification and cooling can be achieved by only passing the PTFE composite filter material through the diffusion cover, which is convenient and quick; The device of the present invention does not require cold air from an air conditioner during the cooling process, achieves better cooling and humidification effects at extremely low energy consumption, and has a high static electricity elimination rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a device for reducing the efficiency loss of PTFE sandwich membrane filter material Figure 1 ; Figure 2 Schematic diagram of a device for reducing the efficiency loss of PTFE sandwich membrane filter material Figure 2 ; Figure 3 is a schematic diagram of a sterilization device; Figure 4 A diagram of a diffuser Figure 1 ; Figure 5 A diagram of a diffuser Figure 2 ; In the figure: 1. shell; 2. segmented notch; 3. circulation fan; 4. fixing part; 5. guide shaft; 6. frame; 7. ultrasonic atomizer; 71. power adjustment knob; 8. sterilization device; 81. water inlet pipe; 82. sterilant storage tank; 83. mixing tank; 84. adjustment device; 85. mixing tube; 9. universal roller; 10. assembly plate; 11. straight notch; 12. diffusion cover; 121. mist channel; 122. top outlet; 123. air guide plate assembly; 1231. air guide plate; 1232. air guide plate shell; 13. supporting plate; 14. straight notch member; 141. straight notch; 15. slide rail; 16 external guide roller; 17. external winding mechanism. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-5The present invention provides a technical solution: a device for reducing the efficiency loss of PTFE sandwich membrane filter material, comprising a frame 6, an ultrasonic atomizer 7, a sterilization device 8, two sets of circulation fans 3 and a diffusion cover 12; the lower end of the frame 6 is provided with an ultrasonic atomizer 7 and a sterilization device 8, and the sterilization device 8 is located on one side of the ultrasonic atomizer 7; the lower end of the diffusion cover 12 is connected to the ultrasonic atomizer 7; the circulation fan 3 is adjustably arranged at the rear end of the frame 6, and the circulation fan 3 is located on the rear side of the diffusion cover 12.

[0020] A universal roller 9 is provided at the bottom of the frame 6, a supporting plate 13 is welded below the frame 6, and slide rails 15 are provided on both sides of the supporting plate 13; straight groove pieces 14 are provided on both sides of the ultrasonic atomizer 7, and the slide rails 15 are provided in the straight groove pieces 14 by bolts.

[0021] Furthermore, the straight slot member 14 is an L-shaped structure, one end of the straight slot member 14 is fixed to the side of the ultrasonic atomizer 7, and the other end of the straight slot member 14 is provided with a straight slot 141.

[0022] Furthermore, the slide rails 15 are located on both sides of the bottom of the ultrasonic atomizer 7 , and the slide rails 15 are matched with the straight slot 141 .

[0023] When in use, the straight slot 141 slides on the slide rail 15, so that the ultrasonic atomizer 7 slides back and forth relative to the frame 6.

[0024] Furthermore, the universal roller 9 has a locking mechanism, and a shock-absorbing spring is connected between the locking mechanism and the frame 6, so that the device of the present invention can be fixed in a suitable position when in use, and the stability of the device is ensured, thereby increasing the quality of the device when in operation.

[0025] The sterilization device 8 is arranged on the right side of the ultrasonic atomizer 7 via the fixing member 4 .

[0026] Furthermore, the fixing member 4 includes a rectangular member arranged at the bottom end of the sterilization device 8 and a connecting member fixed to one side of the rectangular member, and the other end of the connecting member is fixed to the side of the ultrasonic atomizer 7 .

[0027] The sterilization device 8 includes a water inlet pipe 81, a sterilant storage tank 82, a mixing tank 83, an adjusting device 84 and a mixing tube 85; the sterilant storage tank 82 is arranged at the upper end of the mixing tank 83, and the mixing tank 83 is connected to the ultrasonic atomizer 7 via the mixing tube 85; the water inlet pipe 81 is arranged on one side of the mixing tank 83 relative to the mixing tube 85; and the adjusting device 84 is arranged between the sterilant storage tank 82 and the mixing tank 83.

[0028] Furthermore, a bactericide nozzle is provided at the bottom of the bactericide storage tank 82, which can spray the bactericide into the mixing tank 83 inside the sterilization device 8. The spraying amount can be adjusted by the adjusting device 84. Water enters the sterilization device 8 through the water inlet pipe 81 and adds the bactericide, and then flows into the ultrasonic atomization device 7 through the mixing pipe 85. The amount of bactericide added is 1.0-8.0 g / s.

[0029] The diffusion cover 12 includes a mist channel 121, a top outlet 122 and an air guide plate assembly 123; the top end of the air guide plate assembly 123 is provided with a top outlet 122, and the bottom end of the air guide plate assembly 123 is provided with a mist channel 121, and the mist channel 121, the top outlet 122 and the air guide plate assembly 123 are arranged in a through manner.

[0030] The ultrasonic atomizer 7 is provided with a mist outlet, and the mist channel 121 matches the mist outlet of the ultrasonic atomizer 7. During installation, the mist channel 121 is connected to the mist outlet of the ultrasonic atomizer 7, and the top outlet 122 fits the composite filter material to prevent mist leakage.

[0031] The air deflector assembly 123 includes an air deflector 1231 and an air deflector housing 1232 . The gap of the air deflector 1231 is set in the air deflector housing 1232 , and the two ends of the air deflector 1231 are respectively located near the mist channel 121 and the two ends of the top outlet 122 .

[0032] The air guide plate 123 can evenly distribute the ultrasonic mist to the surface of the substrate, thereby achieving a uniform cooling and humidifying effect on the substrate in the axial direction.

[0033] An assembly plate 10 is welded above both sides of the rear end of the frame 6, and a segmented slot 2 and a second straight slot 11 are opened on the assembly plate 10. The segmented slot 2 is located on the side close to the diffusion cover 12; the circulation fan 3 is set in the segmented slot 2 by bolts; and a guide shaft 5 is set between the second straight slots 11.

[0034] Furthermore, the segmented notch 2 and the straight notch 11 are vertically arranged strip structures.

[0035] Furthermore, the present invention is provided with two sets of circulating fans 3 arranged in opposite directions, with a gap between the circulating fans 3, and the two sets of circulating fans 3 are arranged in parallel. During installation, the air outlets of the circulating fans 3 are arranged in opposite directions, and the circulating fans 3 and the sandwich film aluminum material are made parallel by adjusting the angles of the two sets of circulating fans 3, so as to achieve the best cooling effect.

[0036] Furthermore, a shell 1 is disposed outside the circulation fan 3, and the circulation fan 3 can disperse water droplets suspended on the surface of the substrate to prevent excessive humidity of the substrate and also can take away heat through water evaporation to accelerate cooling.

[0037] The circulating fan 3 is parallel to the sandwich membrane aluminum material, that is, the angle of the shell 1 is adjusted. The angle of the shell 1 can be adjusted by the nut in the segmented notch 2. During the production process, the angle of the shell 1 needs to be parallel to the angle of the filter material to achieve the best cooling effect. The circulating fan 3 can adjust the gear to meet the production needs, and the wind speed adjustment range is 1-5 gears.

[0038] Furthermore, both ends of the guide shaft 5 are set in the straight slot 11 through bolts, and the height can be adjusted by nuts in the straight slot 11. By adjusting the height of the guide shaft 5, the angle of the PTFE composite filter material can be adjusted.

[0039] A power adjustment knob 71 is provided above the ultrasonic atomizer 7, and the power can be adjusted according to factors such as vehicle speed and substrate thickness. The power can be adjusted by controlling the current, and the power adjustment range is 1.0-2.0A, which is based on meeting production needs.

[0040] When the device of the present invention is in use, the front end of the guide shaft 5 is provided with an external guide roller 16 and an external winding mechanism 17 . The PTFE composite filter material is led out from the guide shaft 5 , passed through the external guide roller 16 , and then to the external winding mechanism 17 .

[0041] A method for using a device for reducing the efficiency loss of a PTFE sandwich membrane filter material, characterized in that it comprises the following steps: S1, configuring the cooling device for reducing the efficiency loss of the PTFE sandwich membrane filter material, that is, the device described in the present invention; S2. Push the cooling device to the front of the external hot compress machine winding rack. After confirming the position, lock the universal roller 9 under the rack 6. S3, leading the PTFE composite filter material from the hot compress machine to the guide shaft 5, and then passing through the external guide roller 16 to the external winding mechanism 17; S4, push the ultrasonic atomizer 7 and adjust the height of the guide shaft 5 to make the PTFE composite filter material fit with the diffusion cover 12; adjust the angle of the housing 1 outside the circulation fan 3 to make it parallel to the filter material; S5, turn on the ultrasonic atomizer 7, the sterilizing device 8, the circulating fan 3, turn on the external winding mechanism 17, and set corresponding working parameters according to the vehicle speed.

[0042] The working current adjustment range of the ultrasonic atomizer 7 is 1.0-2.0A; the spraying amount of the ultrasonic atomizer 7 is 1.0-8.0 g / s; the wind speed adjustment range of the circulating fan 3 is 1-5 gears, and the vehicle speed setting range is 2.0-10.0 m / min.

[0043] Furthermore, the hot compress machine is an external device, and the device of the present invention is used in a process after the hot compress machine and is placed behind the hot compress machine when in use.

[0044] The winding mechanism 17 is started, driving the PTFE composite filter material to move forward, so that the PTFE composite filter material is wound up.

[0045] During operation, water enters the mixing tank 83 through the water inlet pipe 81, and the bactericide storage tank 82 adds bactericide to the mixing tank 83 after the spraying amount is adjusted by the regulating device 84, and flows into the ultrasonic atomization device 7 through the mixing pipe 85. The mist passes through the diffusion cover 12 to the top outlet 122 to the surface of the PTFE composite filter material for cooling and humidification.

[0046] Embodiment 1: The present embodiment discloses a method for using the device for reducing the efficiency of PTFE sandwich membrane filter material to reduce the efficiency loss of 35g two-component + U16 grade PTFE membrane + 35g two-component sandwich membrane filter material, which specifically includes the following steps: pushing the device of the present invention to the front of the winding frame of the external hot compress machine, locking the universal roller 9 under the frame 6 after the position is confirmed; leading the 35g two-component + U16 grade PTFE membrane + 35g two-component sandwich membrane filter material from the hot compress machine to the guide shaft 5, and then passing it through the external guide roller 16 to the external winding mechanism 17; pushing the ultrasonic atomizer 7 and adjusting the height of the guide roller 5 to make the 35g two-component + U16 grade PTFE membrane + 35g two-component sandwich membrane filter material fit with the top outlet 122 of the diffusion cover 12; adjusting the angle of the shell 1 of the circulation fan 3 so that it is parallel to the filter material; setting the power of the ultrasonic atomizer 7 to 1.2A and the addition amount of the sterilization device 8 to 2.0 g / s, circulating fan 3 wind speed 2, open the external winding mechanism 17, and set the vehicle speed to 3.0 m / min; The efficiency of the original membrane was 99.99995%, and the final measured efficiency of the rolled-up sandwich membrane was 99.99995%. After the filter material was cut, it was 99.99995%, and was judged to be U16 level with no efficiency loss.

[0047] Embodiment 2: The present embodiment discloses a method for using the device for reducing the efficiency of PTFE sandwich membrane filter material to reduce the efficiency loss of 55g two-component + U15 grade PTFE membrane + 55g two-component sandwich membrane filter material, which specifically includes the following steps: pushing the device of the present invention to the front of the winding rack of the external hot compress machine, locking the universal roller 9 under the rack 6 after the position is confirmed; leading the 55g two-component + U16 grade PTFE membrane + 55g two-component sandwich membrane filter material from the external hot compress machine to the guide shaft 5, and then passing it through the external guide roller 16 to the external winding mechanism 17; pushing the ultrasonic atomizer 7 and adjusting the height of the guide roller 5 to make the 35g two-component + U16 grade PTFE membrane + 35g two-component sandwich membrane filter material fit with the top outlet 122 of the diffusion cover 12; adjusting the angle of the shell 1 of the circulation fan 3 to make it parallel to the filter material; setting the power of the ultrasonic atomizer 7 to 1.4A and the addition amount of the sterilization device 8 to 2.5 g / s, the circulating fan 3 wind speed 3 gear, open the external winding mechanism 17, and set the vehicle speed to 4.0 m / min; The efficiency of the original membrane was 99.9995%, and the final measured efficiency of the rolled-up sandwich membrane was 99.9995%. After the filter material was cut, it was 99.9995%, and was judged to be U16 level with no efficiency loss.

[0048] Comparative Example 1: This comparative example discloses the efficiency of a sandwich membrane composite filter material that is not produced by the device, and the composite filter material is selected from 55g of two components + U15 grade PTFE membrane + 55g of two components, and specifically includes the following steps: the filter material is directly introduced into the winding mechanism after being hot pressed by a hot compress machine; The efficiency of the original membrane was 99.9995%, and the final measured efficiency of the rolled-up sandwich membrane was 99.995%. After the filter material was cut, it was 99.98%, and was judged to be H13 level, with an efficiency loss of 2 levels.

[0049] By comparing the examples 1 and 2 with the comparative example 1, it can be seen that the efficiency loss of the PTFE sandwich membrane filter material can be reduced by using the device of the present invention.

[0050] 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 device for reducing the efficiency loss of PTFE sandwich membrane filter material, characterized in that: The invention comprises a frame (6), an ultrasonic atomizer (7), a sterilizing device (8), two sets of circulating fans (3) and a diffusion cover (12); the ultrasonic atomizer (7) and the sterilizing device (8) are arranged at the lower end of the frame (6), and the sterilizing device (8) is located on one side of the ultrasonic atomizer (7); the lower end of the diffusion cover (12) is connected to the ultrasonic atomizer (7); the circulating fan (3) is adjustably arranged at the rear end of the frame (6), the circulating fan (3) is located on the rear side of the diffusion cover (12), and a shell (1) is arranged outside the circulating fan (3).

2. A device for reducing the efficiency loss of PTFE sandwich membrane filter material according to claim 1, characterized in that: A universal roller (9) is arranged at the bottom of the frame (6); a support plate (13) is welded below the frame (6); and slide rails (15) are arranged on both sides of the support plate (13); and straight notch members (14) are arranged on both sides of the ultrasonic atomizer (7); and the slide rails (15) are arranged in the straight notch members (14) by means of bolts.

3. A device for reducing the efficiency loss of PTFE sandwich membrane filter material according to claim 2, characterized in that: The straight slot member (14) is an L-shaped structure, one end of the straight slot member (14) is fixed to the side of the ultrasonic atomizer (7), and the other end of the straight slot member (14) is provided with a straight slot one (141); the slide rail (15) is located on both sides of the bottom of the ultrasonic atomizer (7), and the slide rail (15) and the straight slot one (141) are matched.

4. A device for reducing the efficiency loss of PTFE sandwich membrane filter material according to claim 1, characterized in that: The sterilizing device (8) is arranged on the right side of the ultrasonic atomizer (7) via a fixing member (4), and comprises a water inlet pipe (81), a sterilizing agent storage tank (82), a mixing tank (83), a regulating device (84) and a mixing tube (85); a sterilizing agent storage tank (82) is arranged at the upper end of the mixing tank (83), and the mixing tank (83) is connected to the ultrasonic atomizer (7) via the mixing tube (85); the water inlet pipe (81) is arranged on one side of the mixing tank (83) opposite to the mixing tube (85); and a regulating device (84) is arranged between the sterilizing agent storage tank (82) and the mixing tank (83).

5. A device for reducing the efficiency loss of PTFE sandwich membrane filter material according to claim 1, characterized in that: The diffusion cover (12) comprises a mist passage (121), a top outlet (122) and an air guide plate assembly (123); the top end of the air guide plate assembly (123) is provided with a top outlet (122), the bottom end of the air guide plate assembly (123) is provided with a mist passage (121), and the mist passage (121), the top outlet (122) and the air guide plate assembly (123) are arranged in a continuous manner.

6. A device for reducing the efficiency loss of PTFE sandwich membrane filter material according to claim 5, characterized in that: The air deflector assembly (123) comprises an air deflector (1231) and an air deflector housing (1232); a gap of the air deflector (1231) is arranged in the air deflector housing (1232), and two ends of the air deflector (1231) are respectively located close to the mist channel (121) and the two ends of the top outlet (122).

7. A device for reducing the efficiency loss of PTFE sandwich membrane filter material according to claim 1, characterized in that: Mounting plates (10) are welded on both sides above the rear end of the frame (6); the mounting plates (10) are provided with segmented slots (2) and two straight slots (11); the segmented slots (2) are located on a side close to the diffusion cover (12); the circulation fan (3) is arranged in the segmented slots (2) by means of bolts; a guide shaft (5) is arranged between the two straight slots (11); both ends of the guide shaft (5) are arranged in the two straight slots (11) by means of bolts; and the angle of the PTFE composite filter material is adjusted by adjusting the height of the guide shaft (5).

8. The device for reducing the efficiency loss of PTFE sandwich membrane filter material according to claim 1, characterized in that: A power adjustment knob (71) is provided above the ultrasonic atomizer (7).

9. A method for using a device for reducing the efficiency loss of PTFE sandwich membrane filter material according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, configuring the cooling device for reducing the efficiency loss of the PTFE sandwich membrane filter material, that is, the device described in the present invention; S2, push the cooling device to the front of the external hot compress machine rewinding frame, and after confirming the position, lock the universal roller (9) under the frame (6); S3, leading the PTFE composite filter material from the hot compress machine to the guide shaft (5), and then passing through the external guide roller (16) to the external winding mechanism (17); S4, pushing the ultrasonic atomizer (7) and adjusting the height of the guide shaft (5) so that the PTFE composite filter material fits the diffusion cover (12); adjusting the angle of the housing (1) outside the circulation fan (3) so that it is parallel to the filter material; S5. Turn on the ultrasonic atomizer (7), the sterilizing device (8), the circulating fan (3), turn on the external winding mechanism (17), and set corresponding working parameters according to the vehicle speed.

10. The method for using the device for reducing the efficiency loss of PTFE sandwich membrane filter material according to claim 9, characterized in that: The working current adjustment range of the ultrasonic atomizer (7) is 1.0-2.0A; the spraying amount of the ultrasonic atomizer (7) is 1.0-8.0 g / s; the wind speed adjustment range of the circulation fan (3) is 1-5 gears, and the vehicle speed setting range is 2.0-10.0 m / min.

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