CN108434896B - Filtering structure - Google Patents

Filtering structure Download PDF

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Publication number
CN108434896B
CN108434896B CN201810496107.8A CN201810496107A CN108434896B CN 108434896 B CN108434896 B CN 108434896B CN 201810496107 A CN201810496107 A CN 201810496107A CN 108434896 B CN108434896 B CN 108434896B
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China
Prior art keywords
sheet
filter
corrugated
filtering
filter structure
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CN201810496107.8A
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Chinese (zh)
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CN108434896A (en
Inventor
王成基
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Jiaxing Youju Machinery Parts Co ltd
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Jiaxing Youju Machinery Parts Co ltd
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Priority to CN201810496107.8A priority Critical patent/CN108434896B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/40Particle separators, e.g. dust precipitators, using edge filters, i.e. using contiguous impervious surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/40Particle separators, e.g. dust precipitators, using edge filters, i.e. using contiguous impervious surfaces
    • B01D46/403Particle separators, e.g. dust precipitators, using edge filters, i.e. using contiguous impervious surfaces of helically or spirally wound bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/40Particle separators, e.g. dust precipitators, using edge filters, i.e. using contiguous impervious surfaces
    • B01D46/406Particle separators, e.g. dust precipitators, using edge filters, i.e. using contiguous impervious surfaces of stacked bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2275/00Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20Shape of filtering material

Abstract

The invention discloses a novel filtering structure, which consists of one or more filtering units, wherein each filtering unit comprises a flexible surface sheet with filtering capability and a flexible corrugated sheet with filtering capability, each surface sheet comprises an upper sheet and a lower sheet, the lower edge of the upper sheet is in sealing bonding with the upper edge of the lower sheet to form the surface sheet, the upper edge of the upper sheet is in sealing bonding with the upper edge of the corrugated sheet, the lower edge of the lower sheet is in sealing bonding with the lower edge of the corrugated sheet, the sealing bonding part of the upper sheet and the lower sheet forms a waist, and the filtering aperture of the upper sheet is larger than that of the lower sheet. The novel filtering structure can form a filtering effect with multistage filtering, has good filtering effect and high filtering efficiency, and the filter element manufactured by the novel filtering structure has longer service life and can be suitable for filtering substances in different forms such as gas, liquid and the like.

Description

Filtering structure
Technical Field
The invention belongs to the technical field of filtration, and particularly relates to a filtration structure.
Background
With the continuous acceleration of industrial development, the atmospheric environment of China is worse and worse, and the PM2.5 atmospheric index is always checked before going out, just like the weather condition is checked. Various indoor and vehicle filters are becoming increasingly popular. The air filter core structure used in the market at present generally adopts a honeycomb filter structure designed by Tangason corporation in the United states, and is formed by rolling and laminating corrugated filter paper and planar filter paper, wherein the bottoms of the corrugated filter paper and the planar filter paper are in sealed bonding, and the upper parts of the corrugated filter paper and the planar filter paper are in partial bonding, so that a bag-like filter structure is formed, air to be filtered enters the bag from a bag opening above, and passes through the corrugated filter paper and the planar filter paper after the bottom of the bag is blocked, so that the filtering is realized. The problems with this filter structure are: the filtering structure can only form one-time effective filtration on air, and cannot form multiple-time graded filtration on particles in the air.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the following technical scheme: a filter structure comprising one or more filter units, the filter units comprising a flexible and filterable facing sheet and a flexible and filterable corrugated sheet, the facing sheet comprising an upper sheet and a lower sheet, the lower edge of the upper sheet being sealingly bonded to the upper edge of the lower sheet to form the facing sheet, the upper edge of the upper sheet being sealingly bonded to the upper edge of the corrugated sheet, the lower edge of the lower sheet being sealingly bonded to the lower edge of the corrugated sheet, the sealingly bonded portions of the upper sheet and the lower sheet forming waists, the upper sheet having a filter aperture greater than the filter aperture of the lower sheet.
The filter structure is formed by stacking a plurality of filter units, and the waist of one filter unit in the filter structure is sealed and bonded with the corresponding position of the corrugated sheet in the next adjacent filter unit.
The waist of the last filter unit in the filter structure is sealed and bonded with the corresponding position of the corrugated sheet in the first filter unit.
The filter structure is a cylindrical filter structure, the cylindrical filter structure is formed by winding a filter unit for multiple times, the surface sheets on two sides of the filter unit and the corrugated sheets are respectively bonded in a sealing way, the filter unit after the winding for multiple times forms multiple circles of filter rings, the corrugated sheets in each circle of filter rings are all positioned on the outer side, the waist part in each circle of filter rings is bonded in a sealing way with the corresponding position of the corrugated sheets in the previous circle of filter rings, and the axial direction of the cylindrical filter structure is parallel to the length direction of the corrugations on the corrugated sheets.
The upper sheet is non-woven fabric, the lower sheet is planar filter paper, and the corrugated sheet is corrugated filter paper.
The area of the non-woven fabric is smaller than that of the planar filter paper.
The beneficial effects of the invention are as follows: the filtering structure of the invention can form a filtering effect with multistage filtration, has good filtering effect and high filtering efficiency, and the filter element manufactured by the structure has longer service life and can be suitable for filtering substances with different forms such as gas, liquid and the like.
Drawings
FIG. 1 is a schematic view of the structure of a single filter unit when deployed;
FIG. 2 is an overall schematic of the filter structure in the form of a ring;
FIG. 3 is a schematic illustration of the connection of a portion of a filtration unit in a filtration configuration;
FIG. 4 is a schematic view of the cylindrical filter structure when deployed;
fig. 5 is a schematic diagram showing the connection of a part of the filtration units in the 4-stage filtration.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, a filtering structure is formed by a plurality of filtering units, each filtering unit comprises a flexible surface sheet with filtering capability and a flexible corrugated sheet 1 with filtering capability, the surface sheet comprises an upper sheet 2 and a lower sheet 3, the lower edge of the upper sheet 2 is in sealing bonding with the upper edge of the lower sheet 3 to form the surface sheet, the upper edge of the upper sheet 2 is in sealing bonding with the upper edge of the corrugated sheet 1, the lower edge of the lower sheet 3 is in sealing bonding with the lower edge of the corrugated sheet 1, a waist 6 is formed at the sealing bonding position of the upper sheet 2 and the lower sheet 3, the filtering aperture of the upper sheet 2 is larger than that of the lower sheet 3, and the filtering aperture of the corrugated sheet 1 can be designed according to practical requirements. A plurality of the filter units are stacked to form the filter structure, and the waist 6 of one filter unit is sealed and bonded with the corresponding position of the corrugated sheet 1 in the next adjacent filter unit. When the filter structure is combined with a rigid piece such as a shell to form a filter element, filtered substances flow downwards from top to bottom, firstly enter an upper gap 7 between two adjacent filter units, continuously pass downwards through the filter holes of the upper sheet 2 to perform first-stage filtration, then enter a gap 8 between the surface sheet and the corrugated sheet 1 of the same filter unit, continuously pass downwards through the filter holes of the lower sheet 3 to perform finer second-stage filtration, and finally leave a lower gap 9 between the two adjacent filter units to finish filtration.
Example two
As shown in fig. 1, 2 and 3, a filter structure is formed by a plurality of filter units, each filter unit comprises a flexible surface sheet with filtering capability and a flexible corrugated sheet 1 with filtering capability, the surface sheet comprises an upper sheet 2 and a lower sheet 3, the lower edge of the upper sheet 2 is in sealing bonding with the upper edge of the lower sheet 3 to form the surface sheet, the upper edge of the upper sheet 2 is in sealing bonding with the upper edge of the corrugated sheet 1, the lower edge of the lower sheet 3 is in sealing bonding with the lower edge of the corrugated sheet 1, the sealing bonding position of the upper sheet 2 and the lower sheet 3 forms a waist 6, and the filtering pore diameter of the upper sheet 2 is larger than that of the lower sheet 3. A plurality of the filter units are stacked to form the filter structure, and the waist 6 of one filter unit is sealed and bonded with the corresponding position of the corrugated sheet 1 in the next adjacent filter unit. The waist 6 in the last filter unit is sealed and bonded with the corresponding position of the corrugated sheet 1 in the first filter unit after lamination to form an annular filter structure, as shown in fig. 3, the annular filter structure is placed in a corresponding shell, and the inner circumferential surface and the outer circumferential surface of the annular filter structure are respectively sealed and bonded by flexible paper to form an annular filter structure, and the principle of the filtering process is the same as that in the first embodiment.
Example III
As shown in fig. 1, 2 and 4, a filter structure is formed by a filter unit comprising a flexible and filtering face sheet and a flexible and filtering corrugated sheet 1, wherein the face sheet comprises an upper sheet 2 and a lower sheet 3, the lower edge of the upper sheet 2 is in sealing bonding with the upper edge of the lower sheet 3 to form the face sheet, the upper edge of the upper sheet 2 is in sealing bonding with the upper edge of the corrugated sheet 1, the lower edge of the lower sheet 3 is in sealing bonding with the lower edge of the corrugated sheet 1, the sealing bonding position of the upper sheet 2 and the lower sheet 3 forms a waist 6, and the filtering aperture of the upper sheet 2 is larger than that of the lower sheet 3. The filter unit is wound for multiple times to form a cylindrical filter structure, as shown in fig. 4, one side of the surface sheet in the filter unit is in sealing bonding with one side 15 corresponding to the corrugated sheet 1, the other side of the surface sheet is in sealing bonding with the other side 16 corresponding to the corrugated sheet, the filter unit wound for multiple times forms multiple circles of filter rings 17, the corrugated sheet 1 in each circle of filter rings 17 is positioned on the outer side, the waist 6 in each circle of filter rings 17 is in sealing bonding with the corresponding position of the corrugated sheet 1 in the previous circle of filter rings 17, and the axial direction of the cylindrical filter structure after the filter unit is wound is parallel to the length direction of the corrugations on the corrugated sheet 1. When the cylindrical filter structure is combined with a rigid piece such as a shell to form a filter element, the filtered substances flow downwards from top to bottom, firstly enter into the upper gaps 18 of two adjacent filter rings 17, continuously pass downwards through the filter holes of the upper sheet material 2 to perform first-stage filtration, then enter into the gaps 19 between the surface sheet material and the corrugated sheet material 1 of the same filter ring 17, continuously pass downwards through the filter holes of the lower sheet material 3 to perform finer second-stage filtration, and finally leave from the lower gaps 20 between the two adjacent filter rings to finish filtration.
Example IV
As shown in fig. 1, 2 and 5, a filtering structure is formed by tightly stacking a plurality of filtering units, each filtering unit comprises a flexible surface sheet with filtering capability and a flexible corrugated sheet 1 with filtering capability, the size of the surface sheet is equal to that of the corrugated sheet 1, the surface sheet comprises 4 small-part sheets from top to bottom, the 4 small-part sheets are sequentially sealed and bonded to form the surface sheet, the upper edge of a first small-part sheet 10 is sealed and bonded with the upper edge of the corrugated sheet 1, the lower edge of a last small-part sheet 13 is sealed and bonded with the lower edge of the corrugated sheet 1, the sealed and bonded position of the first small-part sheet 10 and a second small-part sheet 11 forms a waist 6, the sealed and bonded position of a third small-part sheet 12 and a fourth small-part sheet 13 forms another waist 6, and two waist 6 parts in one filtering unit are respectively sealed and bonded with corresponding positions of the corrugated sheets 1 in the next adjacent filtering units. The sealing bonding part of the second small part sheet 11 and the third small part sheet 12 forms a connecting part 14, the connecting part 14 is sealed and bonded with the corresponding position of the corrugated sheet 1 in the same filter unit, and the filter pore diameters of the 4 small part sheets are sequentially reduced from top to bottom, so that a filter structure with 4-level filter effect is formed. And so on, the filtering structure with more stages of 6 stages, 8 stages and the like can be formed.
While the preferred embodiments of the present invention have been described in detail, it should be appreciated that numerous modifications and variations may be made in accordance with the principles of the present invention by those skilled in the art without undue burden, and thus, all technical solutions which may be obtained by logic analysis, reasoning or limited experimentation based on the principles of the present invention as defined by the claims are within the scope of protection as defined by the present invention.

Claims (6)

1. The utility model provides a filter structure, its characterized in that, filter structure comprises one or more filter units, filter unit is including a flexible and have filtering capability's surface sheet and a flexible and have filtering capability's corrugated sheet, the size of surface sheet is equal with the size of corrugated sheet, the surface sheet is including upper portion sheet and lower sheet, the lower limb of upper portion sheet and the upper limb seal bond formation surface sheet of lower sheet, the upper limb of upper portion sheet and the upper limb seal bond of corrugated sheet, the lower limb of lower sheet and the lower limb seal bond of corrugated sheet, the seal bond department of upper portion sheet and lower sheet forms the waist, the filtration aperture of upper portion sheet is greater than the filtration aperture of lower part sheet.
2. The filter structure of claim 1, wherein the filter structure is formed by stacking a plurality of the filter units, and wherein the waist portion of one filter unit in the filter structure is sealed and bonded with the corresponding position of the corrugated sheet in the next adjacent filter unit.
3. A filter structure according to claim 2, wherein the waist of the last filter unit in the filter structure is sealingly bonded to the corresponding location of the corrugated sheet in the first filter unit.
4. The filter structure according to claim 1, wherein the filter structure is a cylindrical filter structure, the cylindrical filter structure is formed by winding a filter unit for a plurality of times, two sides of the filter unit are in sealing bonding, one side of a surface sheet in the filter unit is in sealing bonding with a corresponding side of a corrugated sheet, the other side of the surface sheet is in sealing bonding with a corresponding other side of the corrugated sheet, the filter unit after winding for a plurality of times forms a plurality of filter rings, the corrugated sheet in each filter ring is positioned on the outer side, the waist in each filter ring is in sealing bonding with a corresponding position of the corrugated sheet in the previous filter ring, and the axial direction of the cylindrical filter structure is parallel to the length direction of the corrugated sheet.
5. The filter structure of claim 1, 2, 3, or 4, wherein the upper sheet is a nonwoven fabric, the lower sheet is a planar filter paper, and the corrugated sheet is a corrugated filter paper.
6. The filter structure of claim 5, wherein the nonwoven fabric has an area smaller than an area of the planar filter paper.
CN201810496107.8A 2018-05-22 2018-05-22 Filtering structure Active CN108434896B (en)

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CN108434896B true CN108434896B (en) 2023-10-27

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101631601A (en) * 2007-03-16 2010-01-20 3M创新有限公司 Fluid filter
CN104088736A (en) * 2014-06-05 2014-10-08 浙江威泰汽配有限公司 Corrugated paper filter element and filter
CN205391966U (en) * 2016-02-22 2016-07-27 昆山王子过滤制品有限公司 Honeycomb filter screen
CN205569871U (en) * 2016-03-21 2016-09-14 西安天厚滤清技术有限责任公司 Range upon range of formula multiple stages of filtering core
CN107019977A (en) * 2017-05-26 2017-08-08 孙家驹 Dust removal unit
CN206604321U (en) * 2017-03-31 2017-11-03 盛春莉 A kind of filter medium bag and air cleaner
CN208482171U (en) * 2018-05-22 2019-02-12 嘉兴优聚机械配件有限公司 A kind of Novel filtration structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101631601A (en) * 2007-03-16 2010-01-20 3M创新有限公司 Fluid filter
CN104088736A (en) * 2014-06-05 2014-10-08 浙江威泰汽配有限公司 Corrugated paper filter element and filter
CN205391966U (en) * 2016-02-22 2016-07-27 昆山王子过滤制品有限公司 Honeycomb filter screen
CN205569871U (en) * 2016-03-21 2016-09-14 西安天厚滤清技术有限责任公司 Range upon range of formula multiple stages of filtering core
CN206604321U (en) * 2017-03-31 2017-11-03 盛春莉 A kind of filter medium bag and air cleaner
CN107019977A (en) * 2017-05-26 2017-08-08 孙家驹 Dust removal unit
CN208482171U (en) * 2018-05-22 2019-02-12 嘉兴优聚机械配件有限公司 A kind of Novel filtration structure

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