CN112344487A

CN112344487A - Air filter and clean room temperature and humidity debugging method

Info

Publication number: CN112344487A
Application number: CN202011152662.2A
Authority: CN
Inventors: 李国帅; 刘许凯; 佟明建; 吴勍侠; 陈寿高
Original assignee: China Railway Construction Engineering Group Co Ltd; Construction and Installation Co Ltd of China Railway Construction Engineering Group Co Ltd
Current assignee: China Railway Construction Engineering Group Co Ltd; Construction and Installation Co Ltd of China Railway Construction Engineering Group Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-02-09
Anticipated expiration: 2040-10-26
Also published as: CN112344487B

Abstract

The invention relates to an air filter and a clean room temperature and humidity debugging method, aiming at the air filter, the air filter comprises a box body (1) and an unreeling cylinder (2); the filter material filtering device comprises a winding drum (3), a ventilation channel (9), a filter material (4), a first rotating shaft (5), a second rotating shaft (6) and an electric shaft (8) of a motor (7) which are coaxially and fixedly connected, and a rotating roller (10), wherein the filter material (4) is in a V-shaped trend. Aiming at the clean room temperature and humidity debugging method, the clean air conditioning unit which comprises the air filter and is used for adjusting the temperature and the humidity is arranged below the first ventilation pipe galleries at the two ends of the ceiling of the clean room, and then the clean air conditioning unit is controlled to debug the temperature and the humidity. The invention can automatically replace the filter material, ensure the filtering quality, ensure the ventilation quantity because the area of the filter material is far larger than that of the windward side, increase the air passage, fully utilize the filter material, reduce the waste, collect impurities and prevent the impurities from flying.

Description

Air filter and clean room temperature and humidity debugging method

Technical Field

The present invention relates to an air filter.

The invention also relates to a clean room temperature and humidity debugging method.

Background

Chinese utility model patent publication CN2149581 discloses a multipurpose clean air supply screen, comprises power air supply arrangement, air cleaner, support, characterized by: two sides of the two sub-high-efficiency tubular air filters are provided with power air supply devices, and the two sub-high-efficiency tubular air filters are arranged at the two sides and are respectively connected with one power air supply device; the sub-high efficiency tubular air filter is internally filled with a middle-efficiency filter material which is rolled into a cylinder shape; under the tubular air filter, a multi-valley bracket folded by thin metal wires is arranged to lead the filter tubes to be arranged in a staggered way.

Chinese utility model patent publication CN211451191U discloses a precision temperature and humidity air conditioning system for toilet, which comprises a precision fresh air conditioning system, a precision cold and hot load adjusting system, a low heat conduction enclosure structure and a microporous airflow distribution system.

Chinese patent application publication CN101476763 discloses an energy-saving control method for a clean room and a clean room thereof, the energy-saving control method comprising the steps of: (1) arranging a plurality of oxygen sensors and temperature and humidity sensors in the clean space; (2) a through hole is formed between the negative pressure space and the air return channel, and a heat exchanger is arranged in the through hole, so that the negative pressure space is communicated with the air return channel through the heat exchanger; (3) presetting a high limit value and a low limit value of oxygen content in the clean space, and controlling the air inlet flow rate of the combined purification air conditioner by the oxygen sensor through a control circuit; the temperature and humidity sensor is connected with the combined purification air conditioner and the control device of the heat exchanger through the control circuit, so that the temperature and humidity of the clean room reach the corresponding set standards.

The invention can not automatically replace the filter material in the filtering process, ensures the filtering quality, can not increase the air passage, leads the air to be shunted, reduces the influence of the wind pressure on the filter material, and ensures the integrity of the filter material.

Disclosure of Invention

The invention aims to provide an air filter, which can automatically replace filter materials and ensure the filtering quality, the area of the filter materials is far larger than that of the windward side, the ventilation quantity can be ensured, air passages can be increased, the filter materials are fully utilized, the waste is reduced, impurities can be collected, and the impurities are prevented from floating.

Another object of the present invention is to provide a clean air conditioning unit for adjusting temperature and humidity, which can ensure the filtering effect and ventilation volume.

The invention further aims to provide a temperature and humidity debugging method for the clean room, which can give consideration to air filtering quantity and air filtering effect in the clean room.

Aiming at the air filter, the air filter comprises a box body, a winding drum arranged at the upper end in the box body; install the receipts reel at the inside lower extreme of box, be the ventilation passageway between the inside upper end of box and the lower extreme, it has a long banding filter material to roll up on the unreeling reel, long banding filter material one end of reel rigid coupling, unreel the first pivot of reel axial rigid coupling, first pivot rotatable coupling is in the box, the axial rigid coupling second pivot of reel, the second pivot is by the coaxial rigid coupling of electronic axle of a motor, long banding filter material is supported into the wave by a plurality of live-rollers to be "V" shape trend in the ventilation passageway.

Put and to place a roll of filter material on the reel, the reel is convoluteed, the filter material that the rolling has used up, can keep having new filter material to be used for straining the wind, motor control electric shaft, thereby control second pivot rotation reel is with the rolling filter material, wavy filter material can have more filtration areas, the volume of straining is guaranteed as far as possible, the V-arrangement trend, single straight line type wind flow path, change into two wind flow path through the V-arrangement passageway, the windward side has been increased simultaneously, the wind pressure on the filter material unit area has been reduced, avoid the wind speed too big, the integrality of filter material is destroyed to wind-force is too strong. When the fluid divides into upper and lower two ways and passes through the V-arrangement passageway, the thrust direction to the filter material production each other can be different, there will be the balancing force that can offset, thereby reduce wind-force on the whole, the filter material that V-arrangement and wave were arranged has a plurality of contained angles and is convenient for store impurity, V-arrangement transversely extends, impurity in making the air as far as possible keeps in the V-arrangement, prevent to scatter on other equipment and part, influence the device operation, when the filter time-out uses, impurity can remain in the filter material of V-arrangement trend, play and prevent the pollution, collect the effect of impurity or dust.

As a further improvement of the air filter, the ventilation channel is obliquely arranged in the box body, and the long strip-shaped filter material in the V-shaped trend is distributed from one end of the ventilation channel to the other end of the ventilation channel.

The obliquely arranged filter material is capable of prolonging the ventilation channel, further prolonging the air filtering length of the filter material, increasing the windward area and further ensuring the air filtering amount.

As a further improvement of the air filter, the box body comprises an inner box body and an outer box body, a roller and a sliding rail matched with the roller are arranged between the inner box body and the outer box body, a handle is arranged on the side face of a top plate of the inner box body, a first bolt hole is formed in the handle, a base plate is arranged on one side, close to the handle, of the top plate of the outer box body, a second bolt hole is formed in the base plate, and the first bolt hole and the second bolt hole are penetrated through by a bolt.

The gyro wheel and slide rail can make outer box of interior box roll-off, are convenient for change the filter material, and handle person of facilitating the use operates, and when preventing the filter normal use, interior box roll-off sets up first bolt hole and second bolt hole and passes the bolt of the two, makes normal use state make, and interior box keeps in outer box, and the slippage does not.

As a further improvement of the air filter, one side of the outer box body, which is far away from the handle, is provided with a sealing ring, the sealing ring has a concave section, and the sealing ring is sleeved on one side of the inner box body.

The inner box body is provided with a concave section, and the concave section is used for preventing unfiltered air from passing between the inner box body and the outer box body.

The clean air conditioning unit for adjusting the temperature and the humidity comprises the air filter; an air return opening which can be provided with an air filter, a heat exchanger which heats the filtered air and a heater; a humidifier for humidifying the filtered air and a water mist spray head; a motor and a fan for blowing the filtered air; the air-cooled condenser comprises a condenser and a compressor for cooling filtered air, wherein the fan blows the filtered air into a box body, the box body is communicated with a secondary filter, the secondary filter is communicated with an air outlet, and a return air inlet and the air outlet are both provided with a pressure difference switch; the heat exchanger, the heater, the humidifier, the water mist sprayer, the motor, the fan, the condenser and the compressor are all controlled by the controller; the controller receives a touch liquid crystal screen input signal.

Air enters the air conditioning unit through an air filter in the air return port, can be heated by the heat exchanger and the heater to increase the temperature of the air, can be humidified by the humidifier and the water mist spray head to increase the humidity of the air, and can be processed by the motor and the fan to increase the air speed, and can be cooled by the condenser and the compressor to reduce the temperature of the air.

As a further improvement of the clean air conditioning unit, the inner box body is internally provided with a sterilizing lamp, the inner wall of the inner box body is provided with an aluminum foil surface, and the aluminum foil surface is in a continuous wave shape.

The disinfection lamp is an ultraviolet lamp and can emit ultraviolet rays to disinfect gas, the aluminum foil surface can strengthen the reflection of the ultraviolet rays, the disinfection effect is improved, and the gas is discharged after being disinfected by the ultraviolet rays.

Aiming at the clean room temperature and humidity debugging method, the clean air conditioning unit for adjusting the temperature and humidity is arranged below the first ventilation pipe galleries at the two ends of the ceiling of the clean room, one surface of the ventilation pipe galleries facing the indoor is communicated with the air return opening of the clean air conditioning unit, and then the clean air conditioning unit is controlled to debug the temperature and humidity.

Clean air conditioning unit will follow the air purification back row of first ventilation piping lane extraction indoor, improves indoor air quality, adjusts the humiture of indoor air etc..

The clean room temperature and humidity debugging method is further improved, an air outlet of a clean air conditioning unit faces the top surface of a workbench, the workbench is transversely and fixedly connected onto a side wall, an air outlet is formed at the junction of the workbench and the side wall and is positioned below the workbench and arranged on the side wall, a vent hole is formed at the junction of the side surface of the workbench and the side wall, the air outlet is communicated with an air exhaust channel, the air exhaust channel is communicated to an air exhaust pipe gallery, a second air exhaust pipe gallery is arranged in the middle of a ceiling, a second air filter is arranged on one surface of the second air exhaust pipe gallery facing the indoor, the second air filter is communicated with an air feeder, the air feeder feeds air of the second air exhaust pipe gallery into the indoor, and outside air flows to the indoor floor from the second air exhaust pipe gallery through the second air filter, then flows to the side wall, climbs to the air; the outside air is filtered by the first ventilation pipe gallery through the clean air conditioning unit, enters the room, flows to the top surface of the workbench, and one part of the outside air flows to the indoor center along the top surface of the workbench, is driven by the air passing through the second air filter, flows to the indoor floor, flows to the side wall, and climbs to the air outlet along the side wall to be discharged; the other part flows to the ventilation hole between the workbench and the side wall along the top surface of the workbench and then flows to the air outlet below the ventilation hole to be discharged.

Can ensure the humiture of workstation department gas, be convenient for handle corresponding work on the workstation, the air exit is located the workstation, during the air exit return air, the gas of air exit can not reverse climb to the workstation on, thereby pollute the workstation, indoor wind gets into exhaust passage row to exhaust pipe gallery by the air exit, the mobile direction of indoor gas can be strengthened to the forced draught blower, play the effect of the whole flow direction of conditioning gas, make gas flow toward subaerial, and the inflow air exit, it is detained to reduce waste gas, strengthen fresh air's circulation, in addition also can drive the clean gas flow on the workstation, the vent, make clean gas can pass through between side wall and the workstation, thereby the inflow air exit.

As a further improvement of the clean room temperature and humidity debugging method, the section of the exhaust channel communicated with the exhaust outlet is inclined downwards.

When the exhaust channel is ensured to return air, the return air flows towards the ground and cannot reversely flow to the workbench.

As a further improvement of the clean room temperature and humidity debugging method, the top edge of the air outlet extends out of a guide plate which is inclined downwards.

The guide plate further ensures that the return air flowing out of the air outlet can not flow onto the workbench through the guide plate.

The air filter can automatically replace the filter material to ensure the filtering quality, the area of the filter material is far larger than that of the windward side, the ventilation quantity can be ensured, the air passage can be increased, the filter material is fully utilized, and the waste is reduced.

The clean air conditioning unit for adjusting the temperature and the humidity can ensure the filtering effect and the ventilation quantity.

The temperature and humidity debugging method for the clean room can give consideration to air filtering quantity and air filtering effect in the clean room.

Drawings

Fig. 1 is a schematic structural view of an air filter.

Fig. 2 is a schematic structural view of a clean air conditioning unit for adjusting temperature and humidity.

Fig. 3 is a schematic structural diagram of a clean room.

Reference numerals: 1. a box body; 2. placing the winding drum; 3. winding the roll; 4. filtering the material; 5. a first rotating shaft; 6. a second rotating shaft; 7. a motor; 8. an electric shaft; 9. a ventilation channel; 10. a rotating roller; 11. an inner box body; 12. an outer case; 13. a roller; 14. a slide rail; 15. a handle; 16. a first bolt hole; 17. a second bolt hole; 18. a bolt; 19. a seal ring; 20. an air return opening; 21. a heat exchanger; 22. a heater; 23. a humidifier; 24. a water mist spray head; 25. an electric motor; 26. a fan; 27. a condenser; 28. a compressor; 29. an inner box body; 30. a secondary filter; 31. an air outlet; 32. a differential pressure switch; 33. a controller; 34. a substrate; 35. maintaining the clamping channel; 36. an air conditioning unit; 37. an air conditioner mounting frame; 38. touching the liquid crystal screen; 39. a sterilizing lamp; 40. aluminum foil surface; 41. a clean room; 42. a ceiling; 43. a first vent pipe gallery; 44. a work table; 45. a side wall; 46. an air outlet; 47. a second air duct lane; 48. a second air filter; 49. an air exhaust channel; 50. a vent hole; 51. an indoor floor; 52. a blower; 53. a baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Fig. 1 shows the structure of an air cleaner of the present invention, which comprises a case 1, a roll-releasing reel 2 installed at the upper end of the inside of the case 1; install the receipts reel 3 at the inside lower extreme of box 2, be ventilation passageway 9 between the inside upper end of box 1 and the lower extreme, it has a long banding filter material 4 to coil on the section of thick bamboo of unreeling 2, 3 long banding filter material 4 one ends of the rigid coupling of a reel, put the first pivot 5 of 2 axial rigid couplings of reel, first pivot 5 rotatable coupling is in

box

1, 3 axial rigid coupling second pivots 6 of a reel, second pivot 6 is by the coaxial rigid coupling of 8 electronic axles of a motor 7, long banding filter material 4 is supported into the wave by a plurality of live-rollers 10, and be "V" shape trend in ventilation passageway 9.

Put and to place a roll of filter material 4 on the reel 2, the reel 3 is convoluted, the rolling has used up filter material 4, can keep having new filter material 4 to be used for straining the wind, motor 7 control electric shaft 8, thereby control second pivot 6 and rotate reel 3 with rolling filter material 4, wavy filter material 4 can have more filtration areas, guarantee the filtration amount of wind as far as possible, the V-arrangement trend, single straight-line type wind flow path, change into two wind flow path through the V-arrangement passageway, the windward side has been increased simultaneously, the wind pressure on the filter material 4 unit area has been reduced, avoid the wind speed too big, wind-force destroys the integrality of filter material 4 too strongly.

In the present embodiment, the ventilation channel 9 is obliquely arranged in the box body 1, and the long filter material 4 in the shape of a V is distributed from one end of the ventilation channel 9 to the other end of the ventilation channel 9.

Set up aslope, can prolong ventilation channel 9, and then the length of straining of extension filter material 4, increase windward area can further ensure the volume of straining wind.

In this embodiment, the box 1 is an inner box 11 and an outer box 12, a roller 13 and a slide rail 14 adapted to the roller 13 are disposed between the inner box 11 and the outer box 12, a handle 15 is disposed on a side surface of a top plate of the inner box 11, a first bolt hole 16 is disposed on the handle 15, a base plate 34 is disposed on a side of the top plate of the outer box 12 close to the handle 15, a second bolt hole 17 is disposed on the base plate 34, and the first bolt hole 16 and the second bolt hole 17 are penetrated by a bolt 18.

The gyro wheel 13 and slide rail 14 can make interior box 11 roll-off outer box 12, are convenient for change filter material 4, and handle 15 person of facilitating the use operates, and in order to prevent that the filter from normally using, interior box 11 roll-off sets up first bolt hole 16 and second bolt hole 17 and passes the bolt 18 of the two, makes normal use state make, and interior box 11 keeps in outer box 12, and the slippage does not.

In this embodiment, the outer case 12 is provided with a sealing ring 19 at a side thereof remote from the handle 15, and the sealing ring 19 has a concave cross-section and is fitted around the inner case 11.

The concave cross-section facilitates the fastening of the inner housing 11 by preventing unfiltered air from passing between the inner housing 11 and the outer housing 12.

Example 2

FIG. 2 shows a clean air conditioning unit for adjusting temperature and humidity according to the present invention, which includes the air filter; an air return port 20 for installing an air filter, a heat exchanger 21 for heating the filtered air, and a heater 22; a humidifier 23 and a water mist nozzle 24 for humidifying the filtered air; a motor 25 and a fan 26 that blow filtered air; a condenser 27 and a compressor 28 for cooling the filtered air, wherein the fan 26 blows the filtered air into a box body 29, the box body 29 is communicated with a secondary filter 30, the secondary filter 30 is communicated with an air outlet 31, and a differential pressure switch 32 is arranged on the air return opening 20 and the air outlet 31; the heat exchanger 21, the heater 22, the humidifier 23, the water mist head 24, the motor 25, the fan 26, the condenser 27 and the compressor 28 are all operated by the controller 33; the controller 33 receives a touch liquid crystal screen 38 input signal.

The secondary filter 30 may be a medium efficiency filter.

Air enters the air conditioning unit through an air filter in the return air inlet 20, can be heated by the heat exchanger 21 and the heater 22 to increase the temperature of the air, can be humidified by the humidifier 23 and the water mist spray head 24 to increase the humidity of the air, can be processed by the motor 25 and the fan 26 to increase the air speed, can be cooled by the condenser 27 and the compressor 28 to reduce the temperature of the air, and can be manually controlled by a user to touch the liquid crystal screen 38 to input signals for adjusting the temperature, the humidity, the air speed and the like, and the controller 33 receives the signals, so that the corresponding heat exchanger 21, the heater 22, the humidifier 23, the water mist spray head 24, the motor 25, the fan 26, the condenser 27 and the compressor 28 are controlled to realize corresponding functions.

In this embodiment, the inner case 29 is provided with a sterilizing lamp 39 therein, and the inner wall of the inner case 29 is provided with an aluminum foil surface 40, and the aluminum foil surface 40 is formed in a continuous wave shape.

The disinfection lamp is an ultraviolet lamp and can emit ultraviolet rays to disinfect gas, the aluminum foil surface 40 can enhance the reflection of the ultraviolet rays, the disinfection effect is improved, and the gas is discharged after being disinfected by the ultraviolet rays.

Example 3

Fig. 3 shows a clean room, which can implement the temperature and humidity adjustment method of the clean room of the present invention, the clean air conditioning unit 36 for adjusting temperature and humidity is installed below the first ventilation pipe gallery 43 at two ends of the ceiling 42 of the clean room 41, one surface of the ventilation pipe gallery 43 facing the room is communicated with the air return opening 20 of the clean air conditioning unit, and then the clean air conditioning unit is controlled to adjust temperature and humidity.

Installing an air conditioner mounting rack 37 on the first air pipe gallery 43, and installing an air conditioner unit 36 in the air conditioner mounting rack 37;

clean air conditioning unit will follow the air purification back row of first ventilation piping lane 43 extraction indoor, improves indoor air quality, adjusts the humiture of indoor air etc..

In this embodiment, the air outlet 31 of the clean air-conditioning unit faces the top surface of the workbench 44, the workbench 44 is transversely and fixedly connected to the side wall 45, an air outlet 46 is arranged at the junction between the workbench 44 and the side wall 45, the air outlet 46 is positioned below the workbench and arranged on the side wall 45, a vent hole 50 is formed at the junction between the side surface of the workbench 44 and the side wall 45, the air outlet 46 is communicated with an air outlet channel 49, the air outlet channel 49 is communicated with an air outlet duct 51, a second air outlet duct 47 is arranged in the middle of the ceiling 42, a second air filter 48 is arranged on the indoor side of the second air outlet duct 47, the second air filter 48 is communicated with a blower 52, the blower 52 delivers air from the second air outlet duct 47 to the indoor, the outside air flows from the second air outlet duct 47 to the indoor floor 51 through the second air filter 48 and then flows to the side wall 45, climbs to the air outlet 46 along the side wall 45; the outside air is filtered by the clean air-conditioning unit through the first ventilation pipe gallery 43, enters the room, flows to the top surface of the workbench 44, and one part of the outside air flows to the indoor center along the top surface of the workbench 44, is driven by the air passing through the second air filter 48, flows to the indoor floor 51, flows to the side wall 45, and climbs to the air outlet 46 along the side wall 45 to be discharged; the other part flows along the top surface of the worktable 44 to the vent holes 50 between the worktable 44 and the side walls 45, and then flows to the exhaust outlet 46 below the vent holes 50 to be exhausted. The second air filter 48 may be a high efficiency air filter.

The exhaust channel 49 is installed in the maintenance channel 35, which facilitates the maintenance of the exhaust channel 49.

This scheme can ensure the humiture of workstation 44 department gas, be convenient for handle corresponding work on workstation 44, air exit 46 is located the workstation, during the air exit 46 return air, air exit 46's gas can not reverse climb to workstation 44 on, thereby pollute workstation 44, indoor wind gets into exhaust passage 49 by air exit 46 and arranges to exhaust pipe gallery 51, the direction of flow of indoor gas can be strengthened to forced draught blower 52, play the effect of the whole flow direction of regulated gas, make gas flow toward subaerial, and flow in air exit 46, it is detained to reduce waste gas, strengthen fresh air's circulation, clean gas that also can drive on the workstation 44 in addition flows, vent 50, make clean gas can pass through between 45 and the workstation 44, thereby flow in air exit 46.

In the present embodiment, a section of the air discharge passage 49 communicating with the air discharge port 46 is inclined downward.

When the air return of the air exhaust passage 49 is ensured, the return air flows toward the ground without flowing reversely to the work table 44.

In this embodiment, the top edge of the exhaust outlet 46 extends out of an obliquely downward baffle 53.

The baffle 53 further ensures that the return air from the air outlet 46 does not flow over the baffle 47 to the work table 44.

Example 4

Clean rooms require air humidity below 30% and are rated for ten thousand levels of cleanliness.

When drying, the air humidity is required to be lower than 1 percent (namely the dew point is lower than the temperature of minus 36 ℃) at 23 ℃, and the standard is ten thousand-grade cleanliness.

When the cleanliness is controlled: the cleanliness in a workshop needs to be maintained, indoor return air and outdoor fresh air are filtered or part of the indoor return air and the outdoor fresh air are subjected to internal or additional primary and secondary high-filtration materials such as BFU (blower filtration unit)/HFU equipment, an air conditioning unit and a dehumidifier are subjected to internal or additional internal circulation filtration so as to achieve the purification grade required by production, meanwhile, the sealing property of decoration and the positive pressure in a room are ensured, and most of the exchange path of the indoor air and the outside is ensured to be manually and accurately controlled. The method mainly comprises two schemes in different rooms, namely that a fresh air handling unit is provided with a primary and middle efficient filter section without an auxiliary Blower filter unit/high efficient air supply outlet (hepa filter Box) device and is maintained by means of high positive pressure; and the rotary wheel type dehumidifier is provided with a primary-middle efficient filter, the air supply outlet is an efficient filter air inlet, and the blower filter unit is internally circulated.

When temperature and humidity are controlled, the temperature and humidity of a clean room need to be controlled mainly By a dehumidifier and a bypass cooling device (By-Pass cooler). The dehumidifier has the working principle that the humidity is absorbed by the rotating wheel, the dry air is exhausted to the outside through high-temperature treatment and exhaust, the temperature of an indoor area is mainly controlled by a BCU (indoor temperature and humidity controller), and the temperature control is in a required range when the dehumidifier is used in combination with an air conditioning unit

The air pipe installed outside the dehumidifier in a linked mode has high sealing requirements, the air pipe is generally welded by stainless steel, leakage risks can be reduced, the air pipe is installed indoors and generally uses a common plate flange or an angle steel flange, and the leakage requirements are not high.

The dry clean room has high sealing performance, all facilities connected to the room from the outside must be tightly sealed, and the used decoration materials also meet the use requirements of low-humidity environment

The temperature and humidity detection and adjustment of the clean drying chamber are matched with an automatic control system of a manufacturer.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the spirit of the invention, and all the properties or uses are considered to be within the scope of the invention.

Claims

1. An air filter comprises a box body (1), a winding drum (2) arranged at the upper end in the box body (1); install receipts reel (3) at the inside lower extreme of casing (2), be ventilation passageway (9) between the inside upper end of box (1) and the lower extreme, its characterized in that, it has a long banding filter material (4) to coil on putting reel (2), receipts reel (3) rigid coupling long banding filter material (4) one end, put reel (2) first pivot (5) of axial rigid coupling, first pivot (5) rotatable coupling in box (1), receipts reel (3) axial rigid coupling second pivot (6), second pivot (6) are by the coaxial rigid coupling of electronic axle (8) of a motor (7), long banding filter material (4) are supported into the wave by a plurality of rotor rolls (10) to be "V" shape and move towards in ventilation passageway (9).

2. An air filter according to claim 1, wherein the ventilation channel (9) is arranged obliquely in the housing (1), and the V-shaped elongated filter media (4) run from one end of the ventilation channel (9) to the other end of the ventilation channel (9).

3. An air filter according to claim 1, wherein the box body (1) comprises an inner box body (11) and an outer box body (12), rollers (13) and sliding rails (14) matched with the rollers (13) are arranged between the inner box body (11) and the outer box body (12), a handle (15) is arranged on the side surface of the top plate of the inner box body (11), a first bolt hole (16) is formed in the handle (15), a base plate (34) is arranged on the side, close to the handle (15), of the top plate of the outer box body (12), a second bolt hole (17) is formed in the base plate (34), and the first bolt hole (16) and the second bolt hole (17) are penetrated by a bolt (18).

4. An air filter according to claim 3, wherein the side of the outer housing (12) remote from the handle (15) is provided with a sealing ring (19), the sealing ring (19) having a concave cross-section and encircling the side of the inner housing (11).

5. A clean room temperature and humidity debugging method is characterized in that an air filter according to any one of claims 1 to 4 is installed in a return air inlet (20) of a clean air conditioning unit (36) for adjusting temperature and humidity, the air conditioning unit (36) is installed below first ventilation pipe galleries (43) at two ends of a ceiling (42) of a clean room (41), one surface, facing indoors, of each ventilation pipe gallery (43) is communicated with the return air inlet (20) of the clean air conditioning unit (36), and then the clean air conditioning unit (36) is controlled to debug the temperature and humidity.

6. The clean room temperature and humidity adjusting method according to claim 5, wherein an air outlet (31) of the clean air conditioning unit (36) faces the top surface of the workbench (44), the workbench (44) is transversely and fixedly connected to the side wall (45), an air outlet (46) is arranged at the junction of the workbench (44) and the side wall (45), the air outlet (46) is positioned below the workbench and arranged on the side wall (45), a vent hole (50) is formed at the junction of the side surface of the workbench (44) and the side wall (45), the air outlet (46) is communicated with an air exhaust channel (49), the air exhaust channel (49) is communicated with an air exhaust pipe gallery (51), a second air pipe gallery (47) is arranged in the middle of the ceiling (42), a second air filter (48) is arranged on one surface of the second air pipe gallery (47) facing the room, the second air filter (48) is communicated with an air blower (52), and the air blower (52) delivers air of the second air pipe gallery (, the outside air flows to the indoor floor (51) from the second ventilation pipe gallery (47) through the second air filter (48), then flows to the side wall (45), climbs to the air outlet (46) along the side wall (45), and flows into the exhaust pipe gallery (51) through the exhaust channel (49) to be exhausted; the outside air is filtered by the first ventilation pipe gallery (43) through the clean air conditioning unit, enters the room, flows to the top surface of the workbench (44), and one part of the outside air flows to the indoor center along the top surface of the workbench (44), is driven by the air passing through the second air filter (48), flows to the indoor floor (51), flows to the side wall (45), and climbs to the air outlet (46) along the side wall (45) to be discharged; the other part flows to the vent hole (50) between the workbench (44) and the side wall (45) along the top surface of the workbench (44), and then flows to the air outlet (46) below the vent hole (50) to be discharged.

7. A clean room temperature and humidity adjustment method according to claim 6, wherein a section of said exhaust passage (49) communicating with said exhaust port (46) is inclined downward.

8. The clean room temperature and humidity debugging method according to claim 6, wherein said air outlet (46) has a guide plate (53) extending from a top edge thereof and inclining downward.