CN107441879B

CN107441879B - Air filtering equipment and filtering piece thereof

Info

Publication number: CN107441879B
Application number: CN201610378471.5A
Authority: CN
Inventors: 吴晏城; 林永宸; 陈正伦
Original assignee: C Sun Manufacturing Ltd
Current assignee: C Sun Manufacturing Ltd
Priority date: 2016-05-31
Filing date: 2016-05-31
Publication date: 2020-07-03
Anticipated expiration: 2036-05-31
Also published as: CN107441879A

Abstract

An air filtering device and a filtering piece thereof are provided, the air filtering device comprises an adsorption chamber and a desorption chamber which are mutually communicated through at least two communication ports, an air inlet channel and an air outlet channel which are communicated with the adsorption chamber, and the filtering piece. The adsorption chamber and the desorption chamber jointly define a circulating action path along and through the communication port, and the filter member is movably arranged in the circulating action path. The filter member has an intake filter section and an exhaust filter section at a portion inside the adsorption chamber, the intake filter section being positioned between the intake passage and the adsorption chamber, the exhaust filter section being positioned between the adsorption chamber and the exhaust passage. The filtering piece comprises a filtering net with a plurality of accommodating spaces and a plurality of filtering materials which are respectively arranged in the accommodating spaces. Therefore, the air filtering equipment is different from the prior air filtering equipment.

Description

Air filtering equipment and filtering piece thereof

Technical Field

The invention relates to a filter device, and also relates to an air filter device and a filter piece thereof.

Background

The filtration methods used today for air pollution are numerous, for example: direct combustion, catalytic combustion, or adsorption. Wherein, it is comparatively safe also to adopt and filter the air filter equipment that the piece mode carried out dirty absorption. However, the filter elements used in the present air filter devices are mostly of a single-piece type, that is, the filter elements are disposed in a single frame or a single space, which limits the development of the air filter devices.

The present inventors have considered that the above-mentioned drawbacks can be improved, and have conducted intensive studies in conjunction with the application of scientific principles, and finally have proposed an invention that is reasonably designed and effectively improves the above-mentioned drawbacks.

Disclosure of Invention

Embodiments of the present invention provide an air filtering apparatus and a filter member thereof, which can effectively solve the problems of the existing air filtering apparatus.

The embodiment of the invention discloses an air filtering device, which comprises: an adsorption chamber and a desorption chamber which are communicated with each other through at least two communication ports, and the adsorption chamber and the desorption chamber jointly define a circulating action path along and through the at least two communication ports; an air inlet channel and an air outlet channel which are respectively communicated with the adsorption chamber; and a filter element movably arranged in the circulating action path; wherein the filter element has an intake filter section and an exhaust filter section at a location within the adsorption chamber, the intake filter section being positioned between the intake passage and the adsorption chamber, the exhaust filter section being positioned between the adsorption chamber and the exhaust passage; wherein, filter includes: a filter screen with a plurality of accommodating spaces; and the plurality of filtering materials are respectively arranged in the plurality of accommodating spaces.

Preferably, the filter elements are elongated and are connected end to end.

Preferably, the filter screen is formed with a plurality of bag-shaped structures, and one accommodating space is formed in each bag-shaped structure, and the plurality of filter materials are respectively and replaceably arranged in the plurality of bag-shaped structures.

Preferably, the air filter device further comprises a conveyor disposed in the adsorption chamber and the desorption chamber, the conveyor being capable of driving the filter element to move stepwise on the cyclical movement path so that the filter element can be in a moving state and a stop state.

Preferably, each moving distance of the filter element is the width of N bag-like structures, and N is a positive integer; when the filter element is in the stop state, the adsorption chamber and the exhaust passage are separated by N bag-shaped structures.

Preferably, each of the bag-like structures has a rim portion and a bag portion positioned inwardly of the rim portion, each bag portion being adapted to receive at least one of the filter materials.

Preferably, the air filtering device further comprises a carrying fence disposed between the adsorption chamber and the exhaust passage, and when the filter element is in the stop state, the N bag-like structures between the adsorption chamber and the exhaust passage are pressed against the carrying fence.

Preferably, the air filter device further comprises a conveyor disposed in the adsorption chamber and the desorption chamber, the conveyor being capable of driving the filter member to move continuously and uninterruptedly on the circulating motion path.

Preferably, the desorption chamber is capable of forming a desorption gas flow which penetrates the filter member non-perpendicularly so as to desorb the volatile substance adsorbed by the filter member.

Preferably, the air filter device further includes a discharge fan disposed corresponding to the discharge passage to increase a wind pressure circulating from the adsorption chamber toward the discharge passage.

Preferably, the air filter device further includes an exhaust duct and a buffer tank, opposite ends of the exhaust duct are connected to the exhaust passage and the buffer tank, respectively, and the air exhausted from the exhaust duct is exhausted from the air filter device after the volume and temperature are reduced via the buffer tank.

Preferably, the air filtering device further comprises at least one concentration detector disposed in the adsorption chamber, and each concentration detector is configured to detect a concentration of a substance to be detected at the position.

The embodiment of the invention also discloses a filter element of the air filtering equipment, which comprises: a filter screen with a plurality of accommodating spaces; and the filtering materials are respectively arranged in the accommodating spaces.

Preferably, each of the bag-like structures has an edge portion and a bag portion positioned inwardly of the edge portion, each bag portion containing one of the filter materials.

Preferably, the filter elements are elongated and are connected end to end.

Preferably, each of said filter materials is further defined as an activated carbon fiber cloth.

The embodiment of the invention also discloses a filter element of the air filtering equipment, which comprises: the filter screen is provided with an elongated carrier and at least one sheet body, and one part of the sheet body is jointed with the carrier so that the sheet body and the carrier form an accommodating space; and the filtering materials are respectively arranged in the accommodating spaces.

Preferably, the periphery of each sheet body joined to the carrier is U-shaped to form an opening, and each filter material is removably disposed in the corresponding accommodation space through the opening of the corresponding sheet body.

In summary, the air filtering device and the filtering member thereof disclosed in the embodiments of the present invention have a plurality of accommodating spaces through the filtering member and the filtering material is disposed in the accommodating spaces, so as to break through the old frame and further expand the development space of the air filtering device and the filtering member thereof.

For a better understanding of the nature and technical content of the present invention, reference should be made to the following detailed description of the invention and to the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the invention in any way.

Drawings

FIG. 1 is a perspective view of an air filtration device of the present invention.

Fig. 2 is a perspective view of fig. 1 from another angle.

FIG. 3 is a schematic perspective cross-sectional view of an air filtration apparatus of the present invention.

FIG. 4 is a schematic perspective cross-sectional view of an alternative perspective of an air filtration apparatus of the present invention.

Fig. 5 is a partial schematic view of a filter element according to the invention.

Fig. 6 is a perspective view of the pressing mechanism and the carrying fence in fig. 3.

Fig. 7 is a perspective view of the pressing mechanism and the load-bearing fence in fig. 4.

Fig. 8 is an exploded view of fig. 6.

Fig. 9 is a schematic view of the filter element of the present invention pressed against by the pressing mechanism.

Fig. 10 is a schematic view of the filter element of the present invention not pressed by the pressing mechanism.

Fig. 11 is a schematic view of the filter element of the present invention pressed against by the airtight mechanism.

Fig. 12 is a schematic view of the filter of the present invention not being pressed against by the airtight mechanism.

FIG. 13 is a schematic cross-sectional view of FIG. 1 taken along section lines XIII-XIII.

FIG. 14 is a schematic cross-sectional view of FIG. 1 taken along line XIV-XIV.

Detailed Description

Referring to fig. 1 to 14, it should be noted that, in the embodiment of the present invention, relevant numbers and shapes mentioned in the corresponding drawings are only used for describing the embodiments of the present invention in detail, so as to facilitate understanding of the content of the present invention, and are not used for limiting the scope of the present invention.

As shown in fig. 1 to 3, this embodiment discloses an air filter device 100, particularly an air filter device 100 capable of filtering Volatile Organic Compounds (VOCs), but the use of the air filter device 100 of the present invention is not limited thereto. The air filtering device 100 comprises a filtering device 1, a desorption device 2 arranged beside the filtering device 1, a conveyor 3 arranged in the filtering device 1 and the desorption device 2, a filtering piece 4, a bearing fence 6, a pressing mechanism 5, an air sealing mechanism 7, and an air suction device 8 and an air exhaust device 9 connected to the filtering device 1.

It should be noted that the practical application of the filter member 4, the pressing mechanism 5, or the air-tight mechanism 7 is not limited to the embodiment, that is, the filter member 4, the pressing mechanism 5, or the air-tight mechanism 7 may be sold separately or applied to an air filter device different from the drawings. The following describes the structure of each component included in the air filter device 100, and then describes the connection relationship between each component, and finally explains the operation flow of the air filter device 100.

As shown in fig. 3 and 4, the filter device 1 is internally formed with an adsorption chamber 11, and an air inlet passage 12, an air outlet passage 13, and two communication ports 14 which communicate with the adsorption chamber 11. In the present embodiment, the air inlet channel 12 is located below the adsorption chamber 11, the air outlet channel 13 is located above the adsorption chamber 11, and the two communication ports 14 are respectively adjacent to the air inlet channel 12 and the air outlet channel 13. In more detail, the filter device 1 in the present embodiment is divided into the adsorption chamber 11, the air inlet channel 12, and the air outlet channel 13 by a partition plate (not labeled), and two communication ports 14 are formed on the partition plate (not labeled) adjacent to the adsorption chamber 11.

The desorption device 2 is illustrated as a baking oven in this embodiment, but is not limited thereto. The desorption device 2 is formed with a desorption chamber 21 and two communication ports 22 communicating with the desorption chamber 21, and the two communication ports 14 of the adsorption chamber 11 correspond in position to the two communication ports 22 of the desorption chamber 21, respectively, so that the adsorption chamber 11 and the desorption chamber 21 can communicate with each other through the communication ports 14 and 22. The adsorption chamber 11 and the desorption chamber 21 define a circulation-type operation path along and through the communication ports 14 and 22.

In addition, the air filter device 100 may be sealed with a film (not shown) on each of the communication ports 14, 22, and each film is provided with a slit through which the circulating-type operation path (or the filter member 4) passes. Wherein, the film can be a high temperature resistant film, such as: a PI film (or Kapton film), and the film can also be regarded as a component of the airtight mechanism 7.

In an embodiment not shown, the adsorption chamber 11 of the filtering device 1 and the desorption chamber 21 of the desorption device 2 may be separated by only one partition plate, so that only two communication ports 14 formed on the partition plate are provided between the adsorption chamber 11 of the filtering device 1 and the desorption chamber 21 of the desorption device 2. In addition, the air filtering apparatus 100 may further include a heat insulation plate (not shown) disposed between the adsorption chamber 11 and the desorption chamber 21, so as to reduce the heat energy transfer and mutual interference between the adsorption chamber 11 and the desorption chamber 21 through the heat insulation plate, thereby enabling the air filtering apparatus 100 of the present invention to have a higher desorption performance.

The conveyor 3 can drive the filter elements 4 to move step by step on the circulating motion path, so that the filter elements 4 can be in a moving state and a stopping state. In another aspect, the conveyor 3 is located beside the circular motion path, or the conveyor 3 defines the circular motion path. In the embodiment, the conveyor 3 is illustrated by a plurality of rollers 31 disposed in the desorption chamber 21 and the adsorption chamber 11 and a motor unit 32 (as shown in fig. 1) for driving at least one of the rollers 31, but the conveyor 3 is not limited thereto. In addition, the filtering element 4 of the present embodiment is described as moving step by step, but the present invention does not exclude the conveyor 3 driving the filtering element 4 to move continuously and uninterruptedly on the circulating motion path.

As shown in fig. 3 to 5, the filter member 4 is movably disposed in the circulating motion path, that is, the filter member 4 moves along the circulating motion path. The filter element 4 has an inlet filter section 4a and an outlet filter section 4b in the region of the adsorption chamber 11. The intake filter segment 4a is positioned between the intake passage 12 and the adsorption chamber 11, and the exhaust filter segment 4b is positioned between the adsorption chamber 11 and the exhaust passage 13. The filter element 4 includes a filter screen 41 and a plurality of filter materials 42, the filter screen 41 has a plurality of accommodating spaces S, and the plurality of filter materials 42 are respectively disposed in the accommodating spaces S of the filter screen 41. That is, each receiving space S of the filter 41 can receive at least one filter material 42.

Therefore, the filter element 4 has a plurality of receiving spaces S, and the filter material 42 is disposed in the receiving spaces S, so as to burst the old frame, thereby expanding the development space of the air filter device 100 and the filter element 4.

The filter member 4 is preferably made of a high temperature resistant material so as to maintain the original material characteristics of the desorption apparatus 2 in the high temperature environment formed in the desorption chamber 21. In the embodiment, each of the filtering materials 42 is illustrated as an activated carbon fiber cloth, but not limited thereto. For example, the filter material 42 may be a variety of filter materials manufactured by using functional powders such as activated carbon, zeolite, titanium dioxide, etc. in combination with a reactive agent, or by adding a highly reactive additive mainly composed of an Amine (Amine) compound to activated carbon, and the like, such as plant fibers (e.g., cotton, hemp), wool fibers, asbestos fibers, glass fibers, synthetic fibers (e.g., polyester fibers, polyacrylic fibers, polypropylene fibers, etc.), electrostatic non-woven fabrics.

Further, the filter elements 4 are in the form of long sheets and are connected end to end in the present embodiment, and the intake filter segment 4a and the exhaust filter segment 4b are substantially parallel to the horizontal plane, but not limited thereto. The filter screen 41 is formed with a plurality of bag-shaped structures 411, and an accommodating space S is formed in each of the bag-shaped structures 411, and the filter materials 42 are respectively and replaceably disposed in the corresponding bag-shaped structures 411. Also, each of the bag-like structures 411 has a rim portion 412 and a bag portion 413 positioned inside the rim portion 412, and each bag portion 413 can contain at least one filtering material 42. Accordingly, each movement distance of the filter element 4 is preferably the width of N pockets 411, and the adsorption chamber 11 and the exhaust passage 13 are separated by N pockets 411 when the filter element 4 is in the stopped state. N is a positive integer and N ═ 2 is illustrated in this embodiment, but not limited thereto.

Therefore, the filter materials 42 are respectively and replaceably disposed in the corresponding bag-shaped structures 411, so that the filter materials 42 can be rapidly replaced when the filter efficiency of the filter materials 42 does not meet the expected target, thereby improving the operation efficiency of the air filter device 100 and effectively reducing the replacement cost of the filter elements 4.

In other words, the filter 41 of the filter element 4 has an elongated carrier 43 and a plurality of sheets 44, a portion of each sheet 44 is joined to the carrier 43, so that the sheet 44 and the carrier 43 form a receiving space S, and the plurality of sheets 44 are arranged in a row along the length direction of the carrier 43. The periphery of each sheet 44 joined to the carrier 43 is substantially U-shaped to form an opening O, and each filter material 42 can be removably disposed in the corresponding receiving space S through the opening O of the corresponding sheet 44. In addition, although the number of the sheets 44 of the screen 41 is described as a plurality, the screen 41 may be implemented by at least one sheet 44 when the number of the sheets 44 of the screen 41 is actually applied.

More specifically, the connection between each sheet 44 and the carrier 43 can be changed according to the material used for the sheet 44 and the carrier 43. For example, when the sheet 44 and the carrier 43 are made of plastic, the sheet 44 is joined to the carrier 43 by welding; when the sheet 44 and the supporting body 43 are made of non-plastic material (such as cotton, hemp), the sheet 44 can be joined to the supporting body 43 by sewing.

Referring to fig. 6 to 8 and fig. 4, the pressing mechanism 5 is disposed in the adsorption chamber 11 (e.g., the pressing mechanism 5 is mounted on an inner surface of a partition plate of the filter device 1), and the pressing mechanism 5 can repeatedly press against the exhaust filtering segment 4b of the filter element 4, so that the exhaust filtering segment 4b of the filter element 4 pressed by the pressing mechanism 5 can isolate the adsorption chamber 11 from the exhaust channel 13. The above-mentioned "repeatedly pressing" means in this embodiment: when the filter element 4 is in the moving state, the pressing mechanism 5 is separated from the exhaust gas filtering section 4b of the filter element 4; when the filter element 4 is in the stop state, the pressing mechanism 5 presses against the exhaust filter segment 4b of the filter element 4. Further, the pressing mechanism 5 presses against the edges (e.g., the edge portion 412) of the N pockets 411 between the adsorption chamber 11 and the exhaust channel 13, so that the N pockets 411 pressed by the pressing mechanism 5 isolate the adsorption chamber 11 from the exhaust channel 13.

Therefore, the air filter device 100 presses against the filter element 4 through the pressing mechanism 5, so that when the filter element 4 performs a filtering operation, the gas in the desorption chamber 21 can be prevented from flowing into the exhaust passage 13 from the region outside the filter element 4, thereby effectively reducing the wind loss of the filter element 4 during filtering, and further significantly improving the filtering effect of the filter element 4.

The pressing mechanism 5 corresponds to two bag-shaped structures 411 in the present embodiment, and for the convenience of understanding the specific structure of the pressing mechanism 5 in the present embodiment, only the portion of the pressing mechanism 5 corresponding to a single bag-shaped structure 411 will be described below. Specifically, the pressing mechanism 5 includes two pressing drivers 51, an annular frame 52 connected to the pressing drivers 51, and four linear slide rails 53. The two pressing drivers 51 are respectively connected to two opposite side portions of the annular frame 52, and two linear sliding rails 53 are respectively arranged on two sides of each pressing driver 51. One end of each linear slide 53 is connected to the annular frame 52, and the other end of each linear slide 53 is fixed to the adsorption chamber 11 (e.g., to the inner surface of the partition plate of the filter device 1). The pressing driver 51 can drive the annular frame 52 to move reciprocally (see fig. 9 and 10) so that the annular frame 52 can press against the edge of the exhaust filter segment 4b (e.g., the corresponding edge portion 412 of the bag-like structure 411).

In more detail, the annular frame 52 is rectangular in the present embodiment, two of the pressing drivers 51 are respectively positioned on two short sides of the annular frame 52, and four of the linear sliding rails 53 are respectively connected to the two short sides of the annular frame 52 and are respectively adjacent to four corners of the annular frame 52. Each of the pressing actuators 51 may be a pneumatic cylinder or a hydraulic cylinder, but not limited thereto. Also, the annular frame 52 is preferably provided with a cushion (not shown) at the top surface in this embodiment, and is pressed against the filter member 4 by the cushion.

In addition, the pressing mechanism 5 corresponding to the single bag-like structure 411 of the present embodiment is described with two pressing actuators 51, but when the pressing mechanism 5 corresponding to the single bag-like structure 411 is actually used, the pressing mechanism 5 may be implemented with at least one pressing actuator 51. Also, the pressing mechanism 5 does not exclude omitting the linear guide 53 or replacing it with another member. In addition, when the filter members 4 of the present invention operate in a continuous movement, the air filter device 100 may omit the pressing mechanism 5.

The bearing fence 6 is arranged between the adsorption chamber 11 and the exhaust passage 13, and the bearing fence 6 is positioned at the side of the exhaust filtering section 4b far away from the pressing mechanism 5 (for example, the bearing fence 6 is positioned above the exhaust filtering section 4 b). When the filter element 4 is in the stop state, the exhaust filter segment 4b presses against the carrying fence 6, that is, the bag portions 413 of the N bag-shaped structures 411 between the adsorption chamber 11 and the exhaust passage 13 press against the carrying fence 6.

Therefore, the filtering element 4 can be attached to the bearing fence 6 when bearing wind pressure, so that the bearing fence 6 of the air filtering device 100 can be effectively matched with the pressing mechanism 5 for use, and further the wind loss reducing effect of the filtering element 4 during filtering can be jointly realized and the filtering effect can be effectively achieved.

In addition, the carrying fence 6 can also be used alone without being matched with the pressing mechanism 5. When the carrying fence 6 is used alone, the filtering element 4 will be completely attached to the carrying fence 6 due to the wind pressure, so that the gas to be filtered can force to pass through the filtering element 4 into the exhaust passage 13, and will not pass through the exhaust passage 13 from the gap beside the carrying fence 6. In other words, when the filter element 4 of the present invention operates in a continuous movement without the pressing mechanism 5, the supporting fence 6 alone can also achieve the wind damage reduction effect of the filter element 4 during filtering and achieve the filtering effect.

Referring to fig. 11 and 12 and fig. 4 as appropriate, the two airtight mechanisms 7 are disposed in the adsorption chamber 11 and respectively adjacent to the two communication ports 14 of the adsorption chamber 11, and the two airtight mechanisms 7 can repeatedly press against the filter element 4, so that the two airtight mechanisms 7 and the pressed filter element 4 close the two communication ports 14 of the adsorption chamber 11. The above-mentioned "repeatedly pressing" means in this embodiment: when the filter element 4 is in the moving state, the two airtight mechanisms 7 are separated from the filter element 4; when the filter element 4 is in the stop state, the two airtight mechanisms 7 are respectively pressed against the filter element 4. Further, two of the air-tight mechanisms 7 are pressed against the edges (e.g., the edge portions 412) of two corresponding bag-like structures 411 in the filter member 4.

Therefore, the air filtering device 100 presses against the filtering piece 4 through the airtight mechanism 7, so as to avoid the mutual circulation of the gas in the adsorption chamber 11 and the desorption chamber 21, and further improve the operating efficiency of the air filtering device 100.

Each of the airtight mechanisms 7 in this embodiment includes two airtight drivers 71, a gasket 72 connected to the two airtight drivers 71, a positioning member 73, and a cushion pad 74 connected to the positioning member 73. In each of the airtight mechanisms 7, the two airtight drivers 71 and gaskets 72 are positioned on one side of the filter member 4 (e.g., below the filter member 4), the positioning member 73 and the cushion 74 are positioned on the other side of the filter member 4 (e.g., above the filter member 4), and the position of the gaskets 72 corresponds to the cushion 74.

Furthermore, the two airtight drivers 71 of each airtight mechanism 7 can drive the connected gaskets 72 to move reciprocally, so that the connected gaskets 72 can be pressed against the edge portions 412 of the filter elements 4 substantially without gaps, and the gaskets 72 can clamp the edge portions 412 of the filter elements 4 together with the corresponding cushion pads 74. Each airtight actuator 71 may be a pneumatic cylinder or a hydraulic cylinder, and each sealing pad 72 and each cushion pad 74 may be a silicone pad, but the invention is not limited thereto.

In addition, although two airtight drivers 71 are explained as each airtight mechanism 7 of the present embodiment, each airtight mechanism 7 may be implemented by at least one airtight driver 71 in practical use. Also, the pressing mechanism 5 does not exclude omitting the positioning member 73 and the cushion pad 74 or replacing them with other members. The airtight mechanism 7 of the present invention may be provided with a movable metal member (not shown), so that the communication port 14 is movably shielded by the metal member to achieve airtight effect. When the filter element 4 of the present invention operates in a continuous movement, the gas-tight mechanism 7 is preferably kept in contact with the filter element 4, thereby preventing the gas flow in the adsorption chamber 11 and the desorption chamber 21 from interfering with each other.

Referring to fig. 1 to 3, the air suction device 8 is connected to an air inlet passage 12 of the filter device 1, and the air discharge device 9 is connected to an air discharge passage 13 of the filter device 1. In the present embodiment, the air suction device 8 includes two delivery pipes 81 and two suction fans 82 respectively corresponding to the two delivery pipes 81, and one end of each delivery pipe 81 is connected to the air inlet channel 12. The exhaust device 9 includes two exhaust fans 91, two exhaust pipes 92, and two buffer boxes 93, the two exhaust fans 91 are respectively disposed corresponding to the two exhaust pipes 92, and opposite ends of each exhaust pipe 92 are respectively connected to the exhaust passage 13 and the corresponding buffer box 93. Each of the exhaust fans 91 serves to increase the wind pressure circulating from the adsorption chamber 11 toward the exhaust passage 13, and the air exhausted from the exhaust duct 92 is exhausted from the air filtering apparatus 100 after the volume and temperature thereof are reduced by the buffer case 93.

In addition, the number of components included in each of the suction device 8 and the exhaust device 9 can be adjusted according to the needs of the designer, and is not limited herein. For example: the suction device 8 may include an exhaust pipe 92 and a suction fan 82, and the exhaust device 9 may include an exhaust fan 91, an exhaust pipe 92, and a buffer tank 93.

In addition, the air filtering apparatus 100 may further include at least one concentration detector C (fig. 13) disposed in the adsorption chamber 11, and each of the concentration detectors C is configured to detect a concentration of a substance (e.g., a volatile organic solvent) to be detected at a position. For example: the gas inlet channel 12, the adsorption chamber 11, the gas outlet channel 13 and the desorption chamber 21 can be respectively provided with a concentration detector C so as to obtain the concentration of a substance to be detected contained in the gas at each position; alternatively, in another embodiment (not shown), the air filtering apparatus 100 may be provided with a single concentration detector C (for example, PU/space tube is connected in parallel), and the concentration detector C is electrically connected to each electromagnetic valve of the air filtering apparatus 100, so as to obtain the resistance change through the electromagnetic valve and further detect the concentration of the substance to be detected in each area.

The above is a description of the structure of each component of the air filtering apparatus 100 of the present embodiment, but the specific implementation of each component is not limited to the above description, and the following generally describes the operation mode of the air filtering apparatus 100.

Referring to fig. 13 and 14 and to fig. 1, the air suction device 8 sucks air from the air filter apparatus 100 through the suction fan 82, so that the air enters the air inlet channel 12 along and through the delivery pipe 81, and the air penetrates the air inlet filtering section 4a of the filtering element 4 into the air exhaust device 9 by the wind pressure given by the suction fan 82, and then the air flows toward the air exhaust filtering section 4b and is influenced by the exhaust fan 91 of the air exhaust device 9, so that the air passes through the air exhaust filtering section 4b and exits the air filter apparatus 100 along and through the air exhaust channel 13, the exhaust pipe 92 and the buffer box 93.

During the filtering operation of the intake filtering segment 4a and the exhaust filtering segment 4b, the filtering element 4 is preferably in a stop state, so that the pressing mechanism 5 and the air-tight mechanism 7 are respectively pressed against the filtering element 4, thereby improving the operation efficiency (e.g., the filtering effect of the filtering element 4) of the air filtering apparatus 100.

When the air inlet filtering section 4a carries out the adsorption operation of specific time, will remove and get into desorption cavity 21, desorption cavity 21 of desorption device 2 can be formed with a desorption air current that non-perpendicular pierces through filtering piece 4 for the messenger filter the volatile substance that piece 4 was adsorbed and carry out the desorption through above-mentioned desorption air current in desorption cavity 21. Thereafter, the desorption device 2 can concentrate and discharge the volatile substances desorbed from the filter element 4 for subsequent burning operation. The filter element 4 having undergone the desorption is moved between the adsorption chamber 11 and the exhaust passage 13 and used as an exhaust filter stage 4 b.

[ technical effects of the embodiments of the present invention ]

In summary, the air filtering device and the filtering member thereof disclosed in the embodiments of the present invention have a plurality of accommodating spaces through the filtering member and the filtering material is disposed in the accommodating spaces, so as to break through the old frame and further expand the development space of the air filtering device and the filtering member thereof. Wherein, through filtering material removable ground sets up in corresponding bag-like structure respectively to make filtering material's filtration efficiency not reach when the anticipated target, can change rapidly, and then promote air filtration equipment's operating efficiency and reduce effectively and filter a piece replacement cost.

In addition, the air filtering device is pressed against the filtering piece through the pressing mechanism, so that when the filtering piece is used for filtering, the air in the desorption cavity can be prevented from flowing into the exhaust passage from the region outside the filtering piece, the air loss of the filtering piece during filtering is effectively reduced, and the filtering effect of the filtering piece is further remarkably improved. Wherein, filter can be when bearing the wind pressure, attached to bear on the fence, so that air filtration equipment's the fence that bears can match each other with above-mentioned pressing mechanism effectively and use, and then realize jointly that filter the wind loss when filtering reduces the effect.

In addition, the air filtering equipment is pressed against the filtering piece through the airtight mechanism so as to achieve the effect of avoiding mutual circulation of gas in the adsorption cavity and the desorption cavity and further improve the operation efficiency of the air filtering equipment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the present invention, which is defined by the appended claims.

Claims

1. An air filtration device, comprising:

an adsorption chamber and a desorption chamber which are communicated with each other through at least two communication ports, and the adsorption chamber and the desorption chamber jointly define a circulating action path along and through the at least two communication ports;

an air inlet channel and an air outlet channel which are respectively communicated with the adsorption chamber;

a bearing fence arranged between the adsorption chamber and the exhaust channel,

a filter element movably arranged in the circulating action path; wherein the filter element has an intake filter section and an exhaust filter section at a location within the adsorption chamber, the intake filter section being positioned between the intake passage and the adsorption chamber, the exhaust filter section being positioned between the adsorption chamber and the exhaust passage; wherein, filter includes:

a filter screen with a plurality of accommodating spaces; and

the plurality of filter materials are respectively arranged in the plurality of accommodating spaces; and

the conveyor is arranged in the adsorption chamber and the desorption chamber and can drive the filter element to move step by step on the circulating action path so as to enable the filter element to be in a moving state and a stopping state;

when the filter element is in the stop state, the part of the filter element between the adsorption chamber and the exhaust channel is pressed against the bearing fence.

2. An air filtration device according to claim 1 wherein said filter element is elongated and joined end to end.

3. The air filtering apparatus according to claim 1, wherein the filter screen is formed with a plurality of bag-like structures, and one of the receiving spaces is formed in each of the bag-like structures, and a plurality of the filter materials are replaceably provided in the plurality of bag-like structures, respectively.

4. An air filtration device according to claim 3 wherein each travel distance of said filter element is the width of N of said pockets, N being a positive integer; when the filter element is in the stop state, the adsorption chamber and the exhaust passage are separated by N bag-shaped structures.

5. An air filtration device according to claim 3 wherein each of said bag-like structures has a rim portion and a bag portion positioned inwardly of said rim portion, each of said bag portions being capable of containing at least one of said filter materials.

6. An air filtration device according to claim 4 wherein the N pockets between the adsorption chambers and the air discharge passage are pressed against the load-bearing fence when the filter element is in the deactivated condition.

7. An air filtration device according to claim 1, wherein the desorption chamber is configured to provide a desorption flow that does not vertically penetrate the filter element for desorbing the volatile substance adsorbed by the filter element.

8. The air filtering device according to claim 1, further comprising an exhaust fan disposed corresponding to the exhaust passage for increasing a wind pressure circulating from the adsorption chamber toward the exhaust passage.

9. The air filtering device according to claim 1, further comprising an exhaust duct and a buffer tank, opposite ends of the exhaust duct being connected to the exhaust passage and the buffer tank, respectively, and wherein the air exhausted from the exhaust duct is exhausted from the air filtering device after the volume and temperature are reduced through the buffer tank.

10. The air filtration apparatus of claim 1 further comprising at least one concentration detector disposed within the adsorption chamber, and wherein each concentration detector is configured to detect a concentration of a substance to be detected at the location.