CN111265942B

CN111265942B - Large central efficient air filter

Info

Publication number: CN111265942B
Application number: CN202010156277.9A
Authority: CN
Inventors: 黄清豹; 黄霈淇
Original assignee: Foshan Fudan Occupational Safety And Health Equipment Co ltd; Foshan Human Habitat Environmental Protection Engineering Co ltd
Current assignee: Foshan Fudan Occupational Safety And Health Equipment Co ltd; Foshan Human Habitat Environmental Protection Engineering Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2021-12-21
Anticipated expiration: 2040-03-09
Also published as: CN111265942A

Abstract

The invention belongs to the field of dust removal of clean workshops, and particularly relates to a large-scale central efficient air filter which comprises a conical air inlet, a rectangular shell and a conical purified air outlet, wherein at least 2 filter sections are arranged in the rectangular shell, the upper end and the lower end of each filter section are respectively and fixedly connected with the rectangular shell, an air inlet channel is arranged between the left end of a first filter section and the rectangular shell, the right end of the first filter section is fixedly connected with the rectangular shell, the left end of a second filter section is fixedly connected with the rectangular shell, and a clean channel is arranged between the right end of the second filter section and the rectangular shell; first filter stage separates through S type baffle mutually with the second filter stage, and inlet channel and toper air inlet intercommunication, clean passageway with toper net gas export intercommunication sets up 8 at least filter cores in every filter stage. The process pollution caused by disassembly, disassembly and assembly during filter element replacement can be easily and effectively controlled, pipelines and cleaning workshops can not be polluted, a large amount of consumables are saved, and the occupied space is small.

Description

Large central efficient air filter

Technical Field

The invention belongs to the field of dust removal of clean workshops, and particularly relates to a large-scale central efficient air filter.

Background

Traditional high-efficient air cleaner generally is located clean workshop air conditioner terminal supply-air outlet, air conditioner terminal supply-air outlet generally is located the workshop ceiling, every workshop can dispose a plurality of air conditioner terminal supply-air outlets according to the area size, 1 air filter of general configuration of every air conditioner terminal supply-air outlet and fixing device thereof, 2 to 4 filtration core and fixing device of the parallelly connected combination of extremely individual terminal supply-air outlet configuration, a unit high-efficient air cleaner is constituteed to every air filter and fixing device thereof, a plurality of unit high-efficient air cleaner form a large-scale traditional high-efficient air cleaner through the parallelly connected combination of air supply pipeline.

The problems of the traditional high-efficiency air filter are as follows: 1. the high-efficiency air filter is positioned at the end of the air supply outlet of the pipeline, no isolation measure is provided between the high-efficiency air filter and a clean workshop, and the pollution in the process of disassembling, assembling and disassembling the filter element during replacement cannot be controlled absolutely, so that the clean workshop is always polluted. 2. The high-efficiency air filter is positioned at the end of the air supply outlet of the pipeline, and the air supply pipeline cannot reach the level of a clean level and always has secondary pollution. 3. In a small and dispersed unit filtering mode, the negative pressure value of the high-efficiency air filter of each unit cannot be ensured to be balanced, so that air supply at an air supply outlet is unbalanced, and the air supply balance of a workshop is influenced. 4. In a small and dispersed filtering mode, the negative pressure value of each unit efficient air filter is difficult to detect, and the use condition cannot be controlled, so that the whole service life of the filter element can only be calculated by adopting a shortest service life method, namely the service life of the filter element individual body of the plurality of unit efficient air filters, wherein the negative pressure value of which reaches the saturation value at the earliest, is used as the service life of all the filter elements, namely the traditional method for regularly replacing the service life of the filter element, and therefore, huge waste of consumables is often caused. 5. The small and scattered unit filtering modes cannot be controlled by using working conditions, the management is inconvenient, and the occupied space is large.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the large-scale central efficient air filter, the process pollution generated by the disassembly, disassembly and assembly of the filter element during replacement can be easily and effectively controlled, and pipelines and clean workshops can not be polluted; in the centralized filtering mode, when the negative pressure value of each filter element is unbalanced, the high-efficiency air filter can automatically balance to ensure that the air supply of each air supply outlet is balanced; the occupied space is small. The technical problem to be solved by the invention is realized by the following technical scheme:

a large-scale central high-efficient air cleaner, including the toper air inlet, the rectangular outer cover, toper net gas outlet, set up 2 at least filter segments in the rectangular outer cover, including first filter segment, second filter segment, the upper and lower ends of each filter segment are fixedly connected with rectangular outer cover respectively, set up the admission passage between left end and rectangular outer cover of the first filter segment, the right-hand member and rectangular outer cover of the first filter segment are fixedly connected, the left end and rectangular outer cover of the second filter segment are fixedly connected, set up the clean channel between right-hand member and rectangular outer cover of the second filter segment; first filter stage separates through S type baffle mutually with the second filter stage, and inlet channel and toper air inlet intercommunication, clean passageway with toper net gas export intercommunication sets up 8 at least filter cores in every filter stage.

Furthermore, m filter sections are arranged in the rectangular shell, and comprise a first filter section, a second filter section … …, a m-1 filter section and a m filter section, wherein m is more than 2 and less than or equal to 10, the upper end and the lower end of each filter section are respectively fixedly connected with the rectangular shell, an air inlet channel is arranged between the left end of the first filter section and the rectangular shell, the right end of the first filter section is fixedly connected with the rectangular shell, an air inlet channel is arranged between the left end of the m-1 filter section and the rectangular shell, a clean channel is arranged between the right end of the m-1 filter section and the rectangular shell, the left end of the m filter section is fixedly connected with the rectangular shell, and a clean channel is arranged between the right end of the m filter section and the rectangular shell; the adjacent filtering sections are separated by S-shaped clapboards respectively, the air inlet channel is communicated with the conical air inlet, the clean channel is communicated with the conical clean air outlet, and n filtering cores are arranged in each filtering section, wherein n is more than or equal to 8 and less than or equal to 160.

Furthermore, the filter section consists of a first single-layer set vertical surface, the first single-layer set vertical surface comprises x rows and y columns of square fixing frames, wherein 24 is more than or equal to x and is more than or equal to 2, 24 is more than or equal to y and is more than or equal to 2, when x is equal to 2 or 3, y is more than or equal to 4, and when y is equal to 2 or 3, x is more than or equal to 4.

Furthermore, the filter section is composed of w isosceles trapezoid vertical faces, the isosceles trapezoid vertical faces are composed of 2 second single-layer aggregate vertical faces which are arranged in an isosceles trapezoid shape, a first sealing plate is arranged on the top edge of the isosceles trapezoid, the first sealing plate is respectively and fixedly connected with the 2 second single-layer aggregate vertical faces, the bottom edge of the isosceles trapezoid is an air inlet, the air inlet is communicated with a conical air inlet, every two isosceles trapezoid vertical faces are fixedly connected through a second sealing plate, each second single-layer aggregate vertical face comprises x rows and z columns of square fixing frames, the number of the square fixing frames of each isosceles trapezoid vertical face is x rows and z x 2 columns, the number of the square fixing frames of the w isosceles trapezoid vertical faces is x rows and z x 2 x w columns, wherein 24 is not less than x 2, 10 is not less than z not less than 2, and w is not less than 2.

Specifically, the square fixing frame is formed by cross welding channel steel according to the inner width specification of the filter element by 90 degrees, the front face of the channel steel is a windward face, the groove face of the channel steel is a leeward face, four corners of the windward face of the square fixing frame are respectively provided with a fixing angle steel and a guide angle steel according to the outer width specification of the filter element for placing the filter element, and a fastening device is respectively arranged between every two guide angle steels for locking the filter element; the fixed angle steel is arranged on the outer side of the guide angle steel, the length of the fixed angle steel is smaller than that of the guide angle steel, the guide angle steel is fixedly welded with the fixed angle steel, the fixed angle steel is fixedly welded with the front face of the channel steel, and a gap of 2mm-5mm is reserved between the guide angle steel and the channel steel.

The fastening device comprises a positioning plate, a fixing screw and a central asymmetric plate, wherein the left end and the right end of the positioning plate are respectively fixedly connected with a guide angle steel, the fixing screw is arranged at any end of the upper end surface of the positioning plate, the upper end surface of the positioning plate is fixedly connected with the fixing screw, the central asymmetric plate is provided with a screw hole matched with the fixing screw, and the central asymmetric plate and the fixing screw are matched to play a role in locking the filter element; when the fastening device is arranged at the position close to the edge, one end of the positioning plate is fixedly connected with the guide angle steel, the other end of the positioning plate is fixedly connected with the support angle steel, and the support angle steel is fixedly welded with the front face of the channel steel.

Specifically, the square fixing frame is formed by cross welding of a flat through according to the outer width specification of the filter element by 90 degrees, an angle steel frame is arranged on the inner side of the flat through, one right-angle side of the angle steel frame is fixedly connected with the inner side of the flat through, and the other right-angle side of the angle steel frame forms a filter element base for placing the filter element; and fastening devices are respectively arranged at four corners of the windward side close to the square fixing frame.

Specifically, the fastening device comprises a fixing screw and a central asymmetric plate, the fixing screw is welded on the central line of the windward side of the flat-through, the central asymmetric plate is provided with a screw hole matched with the fixing screw, and the central asymmetric plate and the fixing screw are matched to play a role in locking the filter element; when the fastening device is arranged at the position close to the edge, the wind-resistant flat-through structure further comprises a support angle steel, and the support angle steel is fixed on the windward side of the flat-through structure.

Particularly, a filter element is arranged in each square fixing frame, an outer frame on the back of the filter element is in sealing connection with the square fixing frame through a sealing strip, and the front of the filter element is locked and fixed through four fastening devices; the filter element front faces the windward side, and the filter element windward side faces the direction of the conical air inlet.

Preferably, the S-shaped partition plates are respectively formed by fixedly connecting three partition plates.

The invention has the following advantages:

(1) the invention is positioned at the front end of the air supply pipeline, and the pollution in the process of disassembling, disassembling and assembling the filter element during replacement can be easily and effectively controlled, and the pipeline and a clean workshop can not be polluted.

(2) The air supply pipeline is always kept clean, and secondary pollution is avoided.

(3) And in a centralized filtering mode, when the negative pressure value of each filter element is unbalanced, the high-efficiency air filter can automatically balance to ensure that air supply of each air supply outlet is balanced.

(4) The negative pressure value of the high-efficiency air filter is extremely easy to detect, the using working condition is clear at a glance, and the management is convenient and efficient; the service life of the filter element can completely adopt a longest service life calculation method, namely, the whole negative pressure value of the large-scale central efficient air filter reaches a saturation value, the replacement time of the filter element is determined, and a large amount of consumables are saved.

(5) The occupied space is small.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural diagram according to a second embodiment of the present invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a schematic structural view of a single-layer aggregate facade;

FIG. 8 is an enlarged view of portion A of FIG. 7;

FIG. 9 is a top view of FIG. 8;

FIG. 10 is a schematic view of the cartridge of FIG. 8 with the cartridge removed;

FIG. 11 is a top view of FIG. 10;

FIG. 12 is a schematic view of the structure of the fastening device disposed alongside;

FIG. 13 is a top view of FIG. 12;

FIG. 14 is a schematic structural view of an S-shaped separator;

FIG. 15 is a schematic view of an isosceles trapezoid in elevation;

FIG. 16 is another structural view of the square fixing frame;

fig. 17 is a top view of fig. 16.

Detailed Description

Example one

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention; fig. 2 is a top view of fig. 1. As shown in fig. 1 and 2, the large central high-efficiency air filter includes a conical air inlet 1, a rectangular housing 2, and a conical purified air outlet 3, at least 2 filter segments are arranged in the rectangular housing 2, including a first filter segment and a second filter segment, the upper end and the lower end of each filter segment are respectively fixedly connected with the rectangular housing 2, an air inlet channel 6 is arranged between the left end of the first filter segment 4 and the rectangular housing 2, the right end of the first filter segment 4 is fixedly connected with the rectangular housing 2, the left end of the second filter segment 5 is fixedly connected with the rectangular housing 2, and a clean channel 7 is arranged between the right end of the second filter segment 5 and the rectangular housing 2; the first filtering section 4 and the second filtering section 5 are separated by an S-shaped clapboard 8, an air inlet channel 6 is communicated with the conical air inlet 1, and a clean channel 7 is communicated with the conical clean air outlet 3; fig. 14 is a schematic structural view of the S-shaped partition, and as shown in fig. 14, the S-shaped partition 8 is formed by fixedly connecting a first partition 8.1, a second partition 8.2, and a third partition 8.3, and access doors 9 are respectively disposed on the left and right sides of the rectangular housing 2.

FIG. 7 is a schematic structural diagram of a single-layer set vertical surface, and as shown in FIG. 7, the first filtering section 4 and the second filtering section 5 of the first embodiment are respectively composed of a first single-layer set vertical surface 10, the first single-layer set vertical surface 10 includes x rows and y columns of square fixing frames 11, wherein 24 is greater than or equal to x greater than or equal to 2, 24 is greater than or equal to y greater than or equal to 2, when x is equal to 2 or 3, y is greater than or equal to 4, and when y is equal to 2 or 3, x is greater than or equal to 4.

Fig. 8 is an enlarged view of a portion a of fig. 7, fig. 9 is a top view of fig. 8, fig. 10 is a schematic structural view of fig. 8 with a filter element removed, fig. 11 is a top view of fig. 10, in combination with fig. 8 to 11, a square fixing frame 11 is formed by cross-welding 8# channel steel 11.1 at 90 ° according to an inner width specification of the filter element 12, a front surface of the 8# channel steel 11.1 is a windward surface, a groove surface is a leeward surface, fixing angle steel 11.2 and guide angle steel 11.3 are respectively arranged at inner sides of four corners of the windward surface of the square fixing frame 11 according to an outer width specification of the filter element 12, the windward surface of the square fixing frame 11 is the front surface of the 8# channel steel 11.1, the fixing angle steel 11.2 and the guide angle steel 11.3 form a filter element fixing frame for mounting the filter element 12, the front surfaces of the 8# 11.1 surrounded by the four guide angle steels 11.3 form a filter element base, fastening devices are respectively arranged between every two guide angle steels 11.3 for locking the filter element 12, and fastening devices are also arranged at positions close to each other, namely, fastening devices are respectively arranged at the leftmost guide angle steel and the rightmost guide angle steel; the fixed angle steel 11.2 is arranged on the outer side of the guide angle steel 11.3, the length of the fixed angle steel 11.2 is smaller than that of the guide angle steel 11.3, the guide angle steel 11.3 is fixedly welded with the fixed angle steel 11.2, the fixed angle steel 11.2 is fixedly welded with the front face of the 8# channel steel 11.1, and a gap of 2mm-5mm is reserved between the guide angle steel 11.3 and the 8# channel steel 11.1; the filter element 12 of the present embodiment has an inner width of 614 mm × 614 mm × 80mm, and the fixed angle steel 11.2 is outside the guide angle steel 11.3, and is short, and is perpendicular to the 8# channel steel 11.1 and welded and fixed, and the guide angle steel 11.3 is inside the fixed angle steel 11.2, and is long, and is welded and fixed with the fixed angle steel 11.2.

Referring to fig. 10, the fastening device includes a positioning plate 11.4, a fixing screw 11.5, and a central asymmetric plate 11.6, the left and right ends of the positioning plate 11.4 are respectively fixedly connected with guide angle steels 11.3, that is, the positioning plate 11.4 is supported and fixed by two guide angle steels 11.3, the fixing screw 11.5 is arranged at any end of the upper end surface of the positioning plate 11.4, the upper end surface of the positioning plate 11.4 is fixedly connected with the fixing screw 11.5, the central asymmetric plate 11.6 is provided with a screw hole matched with the fixing screw 11.5, and the central asymmetric plate and the fixing screw are matched to lock the filter element; the screw hole is located the non-centre of gravity department of central asymmetric board 11.6, the purpose that sets up like this makes central asymmetric board 11.6 not by under the fixed state of nut, remains vertically downwards all the time under the effect of gravity, makes things convenient for filter core 12 to impel direction angle steel 11.3, and can not blockked by central asymmetric board 11.6, after filter core 12 impeld direction angle steel 11.3, place central asymmetric board 11.6 rotation for the level, tighten up the nut, central asymmetric board 11.6 just compresses tightly the surface of filter core 12, makes it fixed.

Fig. 12 is a schematic structural diagram of a fastening device arranged close to the edge, fig. 13 is a top view of fig. 12, and as shown in fig. 12 and fig. 13, when the fastening device is arranged close to the edge, that is, when the fastening device is arranged at the leftmost side or the rightmost side, one end of the positioning plate 11.4 is fixedly connected with the guide angle steel 11.3, and the other end of the positioning plate 11.4 is fixedly connected with the support angle steel 11.7, that is, the positioning plate 11.4 is fixed by the guide angle steel 11.3 and the support angle steel 11.7; support angle steel 11.7 of here has two effects, first is fixed positioning plate 11.4, second is the central asymmetric board 11.6 when being used for supporting the locking, because central asymmetric board 11.6 one end compresses tightly filter core 12 when being in the edge, the other end just can be unsettled, just can not realize locking, consequently, support angle steel 11.7 plays the effect of the central asymmetric board 11.6 other end of support, and support angle steel 11.7 sets up on the same horizontal plane with filter core 12, thereby guarantee that the both ends of central asymmetric board 11.6 can steadily lock, support angle steel 11.7 and 8# channel-section steel 11.1's front welded fastening.

A filter element 12 is correspondingly arranged in each square fixing frame 11, four corners of the filter element 12 are matched with four guide angle steels 11.3 of the square fixing frame 11, an outer frame on the back of the filter element 12 is in sealing connection with the windward side of the square fixing frame 11 through a sealing strip 12.1, namely, the outer frame on the back of the filter element 12 is in sealing connection with a filter element base formed on the front of an 8# channel steel 11.1 enclosed by the four guide angle steels 11.3 through the sealing strip 12.1, and the front of the filter element 12 is locked and fixed through four fastening devices; the front surface of the filter element 12 faces the windward side, and the windward side of the filter element 12 faces the direction of the conical air inlet 1.

The outer frame of the filter element 12 of this embodiment is 610 × 610 × 292mm, wherein the frame is 18mm wide, the sealing strip 12.1 is a 18 × 3mm sealing cushion, the middle of the frame is the folding high-efficiency filter paper, and the filter paper and the frame are fixed by gluing. The filter element 12 can be a square body or a rectangular body, the thickness can be different, and when the filter element 12 is rectangular, the corresponding square fixing frame 11 is also rectangular; each side between the filter element 12 and the inner frame of the guide angle steel 11.3 is kept with an adjusting gap of 2mm, so that the filter element 12 can be easily pushed inwards from the four guide angle steel 11.3, the thickness of the guide angle steel 11.3 is enough to avoid a welding protruded line of the positioning angle steel, and the filter element 12 and the inner surface of the 8# channel steel 11.1 are ensured to be flat, inosculated and sealed.

When the filter element 12 needs to be replaced, the side of the vertical plane close to the conical purified gas outlet 3 is sealed by using the fixing plate and the sealant, each square fixing frame 11 of the vertical plane is cleaned before the old filter element is taken down and a new filter element is installed, the fixing plate and the sealant are removed after the new filter element is installed, and the problems of leakage and pollution can be strictly controlled in the whole filter element replacing process.

In the first embodiment, x =4 and y =8, therefore, the number of the filter elements 12 in the first filter segment 4 and the second filter segment 5 is 4 × 8=32, and the number of the filter elements 12 in the whole large central efficient air filter is 32+32= 64.

Example two

Fig. 3 is a schematic structural diagram of a second embodiment of the present invention, fig. 4 is a top view of fig. 3, and fig. 15 is a schematic structural diagram of an isosceles trapezoid facade. Referring to fig. 3, 4 and 15, the filtering section of the large-scale central efficient air filter is composed of w isosceles trapezoid vertical faces 20, each isosceles trapezoid vertical face 20 is composed of 2 second single-layer aggregate vertical faces 21 arranged in an isosceles trapezoid, each isosceles trapezoid vertical face 20 has a certain longitudinal depth, a first sealing plate 22 is arranged on the top edge of each isosceles trapezoid, each first sealing plate 22 is fixedly connected with 2 second single-layer aggregate vertical faces 21, the bottom edge of each isosceles trapezoid is an air inlet 23, each air inlet 23 is communicated with the tapered air inlet 1, every two isosceles trapezoid vertical faces 20 are fixedly connected through a second sealing plate 24, each second single-layer aggregate vertical face 21 comprises x rows and z columns of square fixing frames 11, each square fixing frame of each isosceles trapezoid vertical face 20 is x rows and z x 2 columns, each square fixing frame of w isosceles trapezoid vertical faces 20 is x rows and z x 2 x columns, wherein 24 x is not less than 2, z is more than or equal to 10 and more than or equal to 2, and w is more than or equal to 2.

The second embodiment x =4 and z =2, so that the number of the filter elements 12 of one isosceles trapezoid facade 20 is 4 × 2+4 × 2=16, and the first filter segment 4 and the second filter segment 5 respectively include five isosceles trapezoid facades 20, so that the number of the filter elements 12 of the first filter segment 4 and the second filter segment 5 is 16 × 5=80, and the number of the filter elements 12 of the whole large central efficient air filter is 80+80= 160; the first filtering section 4 and the second filtering section 5 are separated by an S-shaped partition plate 8, and the isosceles trapezoid vertical surface 20 is fixedly connected with the S-shaped partition plate 8 and the rectangular shell 2 through a second sealing plate 24 respectively.

Fig. 16 is another schematic structural diagram of the square fixing frame, fig. 17 is a top view of fig. 16, as shown in fig. 16 and fig. 17, the square fixing frame 11 of the third embodiment is formed by cross-welding flat tubes 11.10 according to the outer width specification of the filter element 12 by 90 °, narrow sides of the flat tubes 11.10 are windward sides and leeward sides, wide sides of the flat tubes 11.10 are in the depth direction, an angle steel frame 11.11 is arranged inside the flat tubes 11.10, a right-angle side of the angle steel frame 11.11 is fixedly connected with the inside of the flat tubes 11.10, and the other right-angle side of the angle steel frame 11.11 forms a filter element base 11.12 for placing the filter element; fastening devices are respectively arranged at four corners of the windward side close to the square fixing frame 11, the windward side of the square fixing frame 11 is a narrow side of the flat tube 11.10, and the filter element base 11.12 is arranged on the leeward side of the square fixing frame 11.

The fastening device of the third embodiment comprises a fixing screw rod 11.5 and a central asymmetric plate 11.6, the fixing screw rod 11.5 is welded on the middle line of the windward side of the flat tube 11.10, a screw hole matched with the fixing screw rod 11.5 is formed in the central asymmetric plate 11.6, and the central asymmetric plate 11.6 is matched with the fixing screw rod 11.5 to play a role in locking the filter element 12; the screw hole is located the non-centre of gravity department of central asymmetric board 11.6, and the purpose that sets up like this makes central asymmetric board 11.6 not under the fixed state of nut, remains vertically downwards all the time under the effect of gravity, makes things convenient for filter core 12 to impel flat expert 11.10 inboard, and can not blockked by central asymmetric board 11.6, after filter core 12 impeld flat expert 11.10 inboard, places central asymmetric board 11.6 rotation for the level, tightens up the nut, just can fix filter core 12.

When the fastening device is arranged at the position close to the side, namely the fastening device is arranged at the leftmost side or the rightmost side, the wind-proof structure further comprises support angle steel 11.7, the support angle steel 11.7 is fixed on the windward side of the flat through 11.10, the support angle steel 11.7 plays a role of supporting the other end of the central asymmetric plate 11.6, and the support angle steel 11.7 is arranged on the same horizontal plane with the filter element 12, so that the two ends of the central asymmetric plate 11.6 can be stably locked.

Correspond in every square mount 11 and set up a filter core 12, the four corners of filter core 12 coincide with flat expert 11.10 inboard four corners, the frame at the back of filter core 12 passes through sealing strip 12.1 and another right-angle side sealing connection of angle steel frame 11.11, promptly with the filter core base 11.12 sealing connection who forms, the front of filter core 12 is fixed through four fastener locking. The other configurations of the second embodiment are the same as those of the first embodiment, and are not described herein again.

Compared with the first embodiment, the second embodiment has the same volume, but can be provided with more filter elements; compared with the third embodiment, the second embodiment has the advantages of more filter elements in dense arrangement and more space saving.

EXAMPLE III

FIG. 5 is a schematic structural diagram of a third embodiment of the present invention; FIG. 6 is a top view of FIG. 5; FIG. 7 is a schematic structural diagram of a single-layer assembly vertical surface, as shown in FIGS. 5 to 7, a large-scale central efficient air filter comprises a tapered air inlet 1, a rectangular housing 2, and a tapered purified air outlet 3, wherein m filter segments are arranged in the rectangular housing 2, and comprise a first filter segment, a second filter segment … …, a m-1 filter segment and a m-th filter segment, wherein m is more than 2 and less than or equal to 10, the upper end and the lower end of each filter segment are respectively fixedly connected with the rectangular housing 2, an air inlet channel is arranged between the left end of the first filter segment and the rectangular housing, the right end of the first filter segment is fixedly connected with the rectangular housing, an air inlet channel is arranged between the left end of the m-1 filter segment and the rectangular housing, a purified channel is arranged between the right end of the m-1 filter segment and the rectangular housing, and the left end of the m-th filter segment is fixedly connected with the rectangular housing, a clean channel is arranged between the right end of the m-th filtering section and the rectangular shell; the adjacent filtering sections are respectively separated by an S-shaped partition plate 8, an air inlet channel is communicated with a conical air inlet 1, a clean channel is communicated with a conical clean air outlet 3, and n filtering cores are arranged in each filtering section, wherein n is more than or equal to 8 and less than or equal to 160.

In the third embodiment, m =4, that is, one end of the first filter segment 30 is fixedly connected to the rectangular housing 2, the other end of the first filter segment 30 is provided with the first air inlet channel 34, one end of the second filter segment 31 is provided with the first clean channel 37, the other end of the second filter segment 31 is provided with the second air inlet channel 35, one end of the third filter segment 32 is provided with the second clean channel 38, the other end of the third filter segment 32 is provided with the third air inlet channel 36, one end of the fourth filter segment 34 is provided with the third clean channel 39, and the other end of the fourth filter segment 34 is fixedly connected to the rectangular housing 2.

The width of the first air inlet channel 34 is larger than that of the second air inlet channel 35 and larger than that of the third air inlet channel 36, and the width of the first cleaning channel 37 is smaller than that of the second cleaning channel 38 and smaller than that of the third cleaning channel 39, so that ventilation balance is achieved.

The filter segment of the third embodiment is composed of the first single-layer assembly vertical face 10, the assembly vertical face of the first filter segment 30 and the fourth filter segment 34 includes x rows and y columns of square holders 11, the assembly vertical face of the second filter segment 31 and the third filter segment 32 includes x rows and y-1 columns of square holders 11, x =4 and y =8 of the third embodiment, that is, the assembly vertical face of the first filter segment 30 and the fourth filter segment 34 includes 4 rows and 8 columns of square holders 11, the assembly vertical face of the second filter segment 31 and the third filter segment 32 includes 4 rows and 7 columns of square holders 11, so that the number of filter elements 12 of the first filter segment 30 is n1=4 × 8=32, the number of filter elements 12 of the second filter segment 31 is n2=4 × 7=28, the number of filter elements 12 of the third filter segment 32 is n3=4 × 7=28, the number of filter elements 12 of the fourth filter segment 34 is n4=4 × 8=32, the whole large-scale central efficient air filter comprises 32+28+28+32=120 filter elements.

The other configurations of the third embodiment are the same as those of the first embodiment, and are not described herein again.

In summary, the present invention has the following advantages:

(5) The occupied space is small.

Claims

1. A large-scale central high-efficiency air filter is characterized by comprising a conical air inlet, a rectangular shell and a conical purified air outlet, wherein at least 2 filter sections are arranged in the rectangular shell and comprise a first filter section and a second filter section, the upper end and the lower end of each filter section are respectively fixedly connected with the rectangular shell, an air inlet channel is arranged between the left end of the first filter section and the rectangular shell, the right end of the first filter section is fixedly connected with the rectangular shell, the left end of the second filter section is fixedly connected with the rectangular shell, and a clean channel is arranged between the right end of the second filter section and the rectangular shell; the first filtering section and the second filtering section are separated by an S-shaped partition plate, the air inlet channel is communicated with the conical air inlet, the clean channel is communicated with the conical clean air outlet, and at least 8 filter elements are arranged in each filtering section.

2. The large central air cleaner according to claim 1, wherein m filter segments are provided in said rectangular housing, including a first filter segment, a second filter segment … …, an m-1 filter segment, and an m-th filter segment, wherein m is more than 2 and less than or equal to 10, the upper end and the lower end of each filtering section are respectively and fixedly connected with the rectangular shell, an air inlet channel is arranged between the left end of the first filtering section and the rectangular shell, the right end of the first filtering section is fixedly connected with the rectangular shell, an air inlet channel is arranged between the left end of the m-1 filtering section and the rectangular shell, a clean channel is arranged between the right end of the m-1 filtering section and the rectangular shell, the left end of the mth filtering section is fixedly connected with the rectangular shell, and a clean channel is arranged between the right end of the mth filtering section and the rectangular shell; the adjacent filtering sections are separated by S-shaped clapboards respectively, the air inlet channel is communicated with the conical air inlet, the clean channel is communicated with the conical clean air outlet, n filtering cores are arranged in each filtering section, wherein n is more than or equal to 8 and less than or equal to 160.

3. The large central air cleaner according to claim 1 or 2, wherein the filter segments are comprised of a first single-layer aggregate facade comprising x rows and y columns of square mounts, wherein 24 ≧ x ≧ 2, 24 ≧ y ≧ 2, y ≧ 4 when x equals 2 or 3, and x ≧ 4 when y equals 2 or 3.

4. The large central high-efficiency air filter according to claim 1 or 2, wherein the filtering section is composed of w isosceles trapezoid vertical faces, the isosceles trapezoid vertical faces are composed of 2 second single-layer collective vertical faces arranged in an isosceles trapezoid, a first sealing plate is arranged on the top edge of the isosceles trapezoid, the first sealing plate is respectively fixedly connected with the 2 second single-layer collective vertical faces, the bottom edge of the isosceles trapezoid is an air inlet, the air inlet is communicated with the conical air inlet, every two isosceles trapezoid vertical faces are fixedly connected through the second sealing plate, the second single-layer collective vertical faces comprise x rows and z columns of square fixing frames, the number of the square fixing frames of a single isosceles trapezoid vertical face is x rows and z x 2 columns, the number of the square fixing frames of w isosceles trapezoid vertical faces is x rows and z x 2 x w columns, wherein 24 x is not less than 2, and 10 is not less than z is not less than 2, w is more than or equal to 2.

5. The large-scale central high-efficiency air filter as claimed in claim 3, wherein the square fixing frame is formed by cross welding channel steel according to the inner width specification of the filter element by 90 degrees, the front surface of the channel steel is a windward surface, the groove surface of the channel steel is a leeward surface, and fixing angle steel and guide angle steel are respectively arranged at four corners of the windward surface of the square fixing frame according to the outer width specification of the filter element for placing the filter element; the fixed angle steel is arranged on the outer side of the guide angle steel, the length of the fixed angle steel is smaller than that of the guide angle steel, the guide angle steel is fixedly welded with the fixed angle steel, the fixed angle steel is fixedly welded with the front face of the channel steel, and a gap of 2mm-5mm is reserved between the guide angle steel and the channel steel.

6. The large-scale central high-efficiency air filter as claimed in claim 4, wherein the square fixing frame is formed by cross welding channel steel according to the inner width specification of the filter element by 90 degrees, the front surface of the channel steel is a windward surface, the groove surface of the channel steel is a leeward surface, and fixing angle steel and guide angle steel are respectively arranged at four corners of the windward surface of the square fixing frame according to the outer width specification of the filter element for placing the filter element; the fixed angle steel is arranged on the outer side of the guide angle steel, the length of the fixed angle steel is smaller than that of the guide angle steel, the guide angle steel is fixedly welded with the fixed angle steel, the fixed angle steel is fixedly welded with the front face of the channel steel, and a gap of 2mm-5mm is reserved between the guide angle steel and the channel steel.

7. The large central high-efficiency air filter according to claim 5, wherein the fastening device comprises a positioning plate, a fixing screw and a central asymmetric plate, the left end and the right end of the positioning plate are fixedly connected with the guide angle steel respectively, the fixing screw is arranged at any end of the upper end surface of the positioning plate, the upper end surface of the positioning plate is fixedly connected with the fixing screw, the central asymmetric plate is provided with a screw hole matched with the fixing screw, and the central asymmetric plate and the fixing screw are matched to play a role in locking the filter element; when the fastening device is arranged at the position close to the edge, one end of the positioning plate is fixedly connected with the guide angle steel, the other end of the positioning plate is fixedly connected with the support angle steel, and the support angle steel is fixedly welded with the front face of the channel steel.

8. The large central high-efficiency air filter according to claim 6, wherein the fastening device comprises a positioning plate, a fixing screw and a central asymmetric plate, the left end and the right end of the positioning plate are fixedly connected with the guide angle steel respectively, the fixing screw is arranged at any end of the upper end surface of the positioning plate, the upper end surface of the positioning plate is fixedly connected with the fixing screw, the central asymmetric plate is provided with a screw hole matched with the fixing screw, and the central asymmetric plate and the fixing screw are matched to play a role in locking the filter element; when the fastening device is arranged at the position close to the edge, one end of the positioning plate is fixedly connected with the guide angle steel, the other end of the positioning plate is fixedly connected with the support angle steel, and the support angle steel is fixedly welded with the front face of the channel steel.

9. The large central high-efficiency air filter as claimed in claim 3, wherein the square fixing frame is formed by cross welding of a flat through according to the outer width specification of the filter element by 90 degrees, an angle steel frame is arranged at the inner side of the flat through, one right-angle side of the angle steel frame is fixedly connected with the inner side of the flat through, and the other right-angle side of the angle steel frame forms a filter element base for placing the filter element; and fastening devices are respectively arranged at four corners close to the windward side of the square fixing frame.

10. The large central high-efficiency air filter as claimed in claim 4, wherein the square fixing frame is formed by cross welding of a flat through according to the outer width specification of the filter element by 90 degrees, an angle steel frame is arranged at the inner side of the flat through, one right-angle side of the angle steel frame is fixedly connected with the inner side of the flat through, and the other right-angle side of the angle steel frame forms a filter element base for placing the filter element; and fastening devices are respectively arranged at four corners close to the windward side of the square fixing frame.

11. The large central high-efficiency air filter according to claim 9, wherein the fastening device comprises a fixing screw rod and a central asymmetric plate, the fixing screw rod is welded on the windward side of the flat-through, the central asymmetric plate is provided with a screw hole matched with the fixing screw rod, and the central asymmetric plate and the fixing screw rod are matched to play a role in locking the filter element; when the fastening device is arranged at the position close to the side, the wind-resistant flat-through wind-facing device further comprises a support angle steel, and the support angle steel is fixed on the flat-through wind-facing surface.

12. The large central high-efficiency air filter according to claim 10, wherein the fastening device comprises a fixing screw rod and a central asymmetric plate, the fixing screw rod is welded on the windward side of the flat-through, the central asymmetric plate is provided with a screw hole matched with the fixing screw rod, and the central asymmetric plate and the fixing screw rod are matched to play a role in locking the filter element; when the fastening device is arranged at the position close to the side, the wind-resistant flat-through wind-facing device further comprises a support angle steel, and the support angle steel is fixed on the flat-through wind-facing surface.

13. The large-scale central high-efficiency air filter according to claim 5, wherein a filter element is arranged in each square fixing frame, an outer frame on the back of the filter element is in sealing connection with the square fixing frame through a sealing strip, and the front of the filter element is locked and fixed through four fastening devices; the filter element is arranged on the air inlet side of the air inlet, and the filter element is arranged on the air inlet side of the air inlet.

14. The large-scale central high-efficiency air filter according to claim 6, wherein a filter element is arranged in each square fixing frame, an outer frame on the back of the filter element is hermetically connected with the square fixing frame through a sealing strip, and the front of the filter element is locked and fixed through four fastening devices; the filter element is arranged on the air inlet side of the air inlet, and the filter element is arranged on the air inlet side of the air inlet.

15. The large-scale central high-efficiency air filter according to claim 9, wherein a filter element is arranged in each square fixing frame, an outer frame on the back of the filter element is hermetically connected with the square fixing frame through a sealing strip, and the front of the filter element is locked and fixed through four fastening devices; the filter element is arranged on the air inlet side of the air inlet, and the filter element is arranged on the air inlet side of the air inlet.

16. The large-scale central high-efficiency air filter according to claim 10, wherein a filter element is arranged in each square fixing frame, an outer frame on the back of the filter element is hermetically connected with the square fixing frame through a sealing strip, and the front of the filter element is locked and fixed through four fastening devices; the filter element is arranged on the air inlet side of the air inlet, and the filter element is arranged on the air inlet side of the air inlet.

17. The large central air cleaner according to claim 1, wherein the S-shaped partition plates are each formed by fixedly connecting three partition plates.