CN206334444U - Filtration and filter element - Google Patents
Filtration and filter element Download PDFInfo
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- CN206334444U CN206334444U CN201621312785.7U CN201621312785U CN206334444U CN 206334444 U CN206334444 U CN 206334444U CN 201621312785 U CN201621312785 U CN 201621312785U CN 206334444 U CN206334444 U CN 206334444U
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Abstract
The utility model discloses a kind of filtration, including porous material base material and filter layer, the porous filter material substrate includes the fiber spreading layer of loose structure main body and loose structure body surfaces, and the filter layer includes being attached to the first filter layer of the pore surface of loose structure main body, the second filter layer of articulamentum combined to form with fiber spreading layer and positioned at the 3rd filter layer for being connected layer surface.Because the fiber spreading layer of porous material substrate surface contains the fiber with superhigh specific surface area of a large amount of unordered diverging distributions, the surface roughness of porous material base material can largely be improved, and contain fiber much in a certain angle with loose structure body surfaces, therefore it has been significantly expanded the contact area of filter layer and porous material substrate surface, so that the adhesion of filter layer and porous material base material is significantly increased, filter layer is difficult for drop-off, and the service life of filtration significantly extends.
Description
Technical field
The utility model belongs to filtration technical field.
Background technology
Chinese invention patent CN104959611A discloses the preparation method of a kind of porous membrane and porous membrane, preparation side
Method mainly includes step：Using the mesh grid of metal or stainless steel as substrate, by the way of cold spraying, by raw material powder with
The slurry that PVB solution is mixed to get then in turn through drying, prepares green compact and vacuum is burnt by spray gun spraying to matrix surface
Knot technique, that is, prepare porous membrane product.There is problems with, 1 when being applied in filtering in gained porous membrane)
Because the porosity of metal or the substrate of stainless steel mesh grid material is relatively low, therefore the air permeability of gained porous membrane is low, filtering
Resistance is larger；2) because the surface of metal or the substrate of stainless steel establishment web material matter is smooth, therefore substrate in gained porous membrane
Adhesion with filter layer is weaker, and bending resistance is poor, and service life is shorter；3) due to metal or stainless steel establishment web material matter
Substrate aperture it is generally larger, ensure filter layer it is difficult for drop-off in the case of can not prepare thicker filter layer, therefore institute
The aperture for obtaining porous membrane is larger, and filtering accuracy is relatively low.
Utility model content
Based on above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of new filtering
Structure, the aperture of the filtration is small, porosity is high, long service life.The utility model is also provided using the filtration
Filter element.
The utility model solves the technical scheme that is used of above-mentioned technical problem for, filtration, including porous material base
Material and filter layer, the porous material base material include the fiber spreading layer of loose structure main body and loose structure body surfaces, institute
Stating filter layer includes being attached to the first filter layer of the pore surface of loose structure main body, combines to form and be connected with fiber spreading layer
Second filter layer of layer and the 3rd filter layer positioned at connection layer surface.Because the fiber spreading layer of porous material substrate surface contains
There is the fiber with superhigh specific surface area of a large amount of unordered diverging distributions, can largely improve porous material base material
Surface roughness, and containing fiber much in a certain angle with loose structure body surfaces, therefore it has been significantly expanded filter layer
With the contact area of porous material substrate surface so that the adhesion of filter layer and porous material base material is significantly increased, filter layer
Difficult for drop-off, the service life of filtration significantly extends.
As the further improvement of above-mentioned filtration, the porous material base material includes being formed through nonwoven is paved by fiber
Loose structure main body and dissipated by the loose structure body surfaces in the fiber that constitutes of fiber of unordered shape stacked arrangement
Layer.The paved nonwoven is to instigate fiber in unordered shape stacked arrangement, using the paved obtained loose structure body surfaces of nonwoven
The fiber of unordered diverging distribution is easily formed, and metal net or stainless steel mesh grid are to be woven to form in order by fiber, because
The surface of this mesh grid is smooth.High by the porosity of the paved loose structure main body formed of fiber non-woven, aperture is small,
The air permeability and filtering accuracy of final filtration structure can be obviously improved.Further, the aperture of the loose structure main body is in gradient
Distribution, the gradient distribution arrangement refers to along perpendicular to the direction of loose structure body surfaces, now, the loose structure main body with
The adhesion of first filter layer is stronger, further prevents that filter layer from coming off.
As the further improvement of above-mentioned filtration, the porosity of the porous material base material is 75-95%.Traditional
The porosity of the mesh grid of metal or stainless steel is generally below 60%, and the porosity of the filtration of gained can only be more
Low, therefore, porous material base material of the present utility model has obvious advantage.
As the further improvement of above-mentioned filtration, the material of the porous material base material is metal simple-substance or alloy.
As the further improvement of above-mentioned filtration, the filter layer is by solid solution alloy, the gold of face-centred cubic structure
Belong to the metal simple-substance of simple substance or body-centered cubic structure to constitute for the metal polyporous material of matrix phase.
As the further improvement of above-mentioned filtration, the solid solution is Ni-Cr solid solution, Ag-Au solid solution, Ti-
Zr solid solution, Fe-Cr solid solution, Ni-Cu solid solution, Cu-Al solid solution, Cu-Zn solid solution, Ni-Al solid solution, Ni-Cr-Fe
Solid solution or Fe-Ce-Al solid solution.
As the further improvement of above-mentioned filtration, the thickness of the filtration is 0.1-1mm；The filtration
Porosity be 70-90%；The air flux of the filtration is 2500-5500m3/m2·h·kpa；The filtration
Average pore size is 0.05-50 μm.When using porous material base material of the present utility model to replace metal or stainless steel mesh grid,
Compared with the porous membrane disclosed in CN104959611A, under the premise of the identical of aperture, filtering knot of the present utility model
The porosity of structure is about 1.5-2 times of the porous membrane porosity, and the air flux of filtration of the present utility model is about that this is more
2-5 times of hole film air flux.
As the further improvement of above-mentioned filtration, the thickness of the 3rd filter layer is 0.02-0.3mm.Due to even
The presence of layer is connect so that the adhesion of porous material base material and filter layer is strong in filtration, therefore the 3rd filter layer is difficult to take off
Fall, the Selective long-range DEPT of its thickness, the intensity of the filtration of the 3rd filter layer with above-mentioned thickness is high, and filtering accuracy is high.
As the further improvement of above-mentioned filtration, the thickness of the articulamentum is 0.01-0.05mm.With the thickness
Porous material base material is strong in the adhesion of filter layer in the filtration of articulamentum.
The porous material base material and the adhesion of filter layer used by the utility model is stronger, therefore filtration
Formability is more preferable, intensity is higher, therefore corresponding filtration can be made to the filter element of various complicated shapes.Or root
According to the shape of existing filter element, using the porous material base material of correspondingly-shaped.The filtration of different pore size can be further
Constitute multistage filtering element.The filter element be applied to gas purification, with higher filtering accuracy, smaller filtration resistance and
Longer service life, can meet indoor air purification quality requirement.
Brief description of the drawings
Fig. 1 is the structural representation of porous material base material.
Fig. 2 is the structural representation of the filtration of embodiment 1.
Fig. 3 is the structural representation of the filtration of embodiment 2.
Embodiment
Embodiment 1
Porous material base material 1 as shown in Figure 1 includes the fiber hair on loose structure main body 1 and the surface of loose structure main body 1
Layer 2 is dissipated, the thickness of the porous material base material 1 is 0.2mm, and porosity is 80%.Filtration as shown in Figure 2, including it is above-mentioned
Porous material base material 1 and filter layer 2, the filter layer 2 include being attached to the first mistake of the pore surface of loose structure main body 11
Filtering layer 21 and fiber spreading layer 12 combine to form the second filter layer 22 of articulamentum 3 and the 3rd filtering positioned at the surface of articulamentum 3
Layer 23.Wherein, only the filter layer 23 of articulamentum 3 and the 3rd is formed in a side of porous material base material 1.The thickness of the articulamentum
Spend for 0.03mm, the thickness of the 3rd filter layer is 0.1mm.
The thickness for the porous membrane that 304 stainless steel mesh are prepared for matrix is used in embodiment 7 in CN104959611A
For 0.3mm, average pore size is 21 μm, and porosity is 44%, and air permeability is 650m3/m2HkPa, filter layer is Ni-Cu solid solutions
Body.Be matrix with the above-mentioned porous material base material 1 of 304 stainless steels using the preparation method of the embodiment, prepare with it is above-mentioned
The porosity of the filtration of the filter layer of porous membrane, thickness and aperture all same is 75%, and air permeability is 3250m3/m2·
h·kPa.Empirical tests, in addition to excellent hole and air permeability, the filtration of the present embodiment is also with more porous than this
The more preferable bending resistance of film and anti-seismic performance, service life are longer.
Embodiment 2
Porous material base material 1 as shown in Figure 1 includes the fiber hair on loose structure main body 1 and the surface of loose structure main body 1
Layer 2 is dissipated, the thickness of the porous material base material 1 is 0.08mm, and porosity is 86%.Filtration as shown in Figure 3, including it is above-mentioned
Porous material base material 1 and filter layer 2, the filter layer 2 include being attached to the first mistake of the pore surface of loose structure main body 11
Filtering layer 21 and fiber spreading layer 12 combine to form the second filter layer 22 of articulamentum 3 and the 3rd filtering positioned at the surface of articulamentum 3
Layer 23.Wherein, it is respectively formed the filter layer 23 of articulamentum 3 and the 3rd in two sides of porous material base material 1.Wherein, in porous material
The thickness of the articulamentum of material base material 1 both sides is 0.04mm, and the 3rd filter layer thickness is 0.02mm.
The thickness that the porous membrane that red copper screen cloth prepared for matrix is used in embodiment 1 in CN104959611A is
0.12mm, average pore size is 15 μm, and porosity is 54%, and air permeability is 1500m3/m2HkPa, filter layer is Ni-Cu solid solutions
Body.Be matrix with the above-mentioned porous material base material 1 of red copper material using the preparation method of the embodiment, prepare with it is above-mentioned porous
The porosity of the filtration of the filter layer of film, thickness and aperture all same is 81%, and air permeability is 4500m3/m2·h·
kPa.Empirical tests, in addition to excellent hole and air permeability, the filtration of the present embodiment is also with porous thinner than this
The more preferable bending resistance of film and anti-seismic performance, service life are longer.
Filtration obtained by embodiment 1-2 is cut, plate, cylinder type or the filter element of other shapes is folded into,
Can with but be not limited only to use following two modes.A kind of is that the filtration of two different pore sizes is made into double-filtration member
Part, the larger first order filtration of average pore size is first contacted with thing to be filtered, retains larger particulate matter, then less
Particulate matter is retained by second level filtration.Another is to roll the porous material base material superposition of two kinds of different pore sizes for one
Body, then prepares filter layer again, and filter element is then made, and the larger side of average pore size first contacts with thing to be filtered, retained
Firmly larger particulate matter, then less particulate matter retained by opposite side.
Claims (10)
1. filtration, including porous material base material and filter layer, it is characterised in that：The porous material base material includes porous knot
The fiber spreading layer of structure main body and loose structure body surfaces, the filter layer includes the hole table for being attached to loose structure main body
First filter layer in face, combine to form with fiber spreading layer the second filter layer of articulamentum and positioned at the 3rd mistake for being connected layer surface
Filtering layer.
2. filtration as claimed in claim 1, it is characterised in that：The porous material base material includes being spread through nonwoven by fiber
Make the loose structure main body formed and the fibre being made up of the loose structure body surfaces in the fiber of unordered shape stacked arrangement
Tie up spreading layer.
3. filtration as claimed in claim 1, it is characterised in that：The porosity of the porous material base material is 75-95%.
4. filtration as claimed in claim 1, it is characterised in that：The material of the porous material base material be metal simple-substance or
Alloy.
5. filtration as claimed in claim 1, it is characterised in that：The filter layer is by solid solution alloy, face-centered cubic knot
The metal simple-substance of structure or the metal simple-substance of body-centered cubic structure are constituted for the metal polyporous material of matrix phase.
6. filtration as claimed in claim 5, it is characterised in that：The solid solution is Ni-Cr solid solution, Ag-Au solid solutions
Body, Ti-Zr solid solution, Fe-Cr solid solution, Ni-Cu solid solution, Cu-Al solid solution, Cu-Zn solid solution, Ni-Al solid solution,
Ni-Cr-Fe solid solution or Fe-Ce-Al solid solution.
7. filtration as claimed in claim 1, it is characterised in that：The thickness of the filtration is 0.1-1mm；The mistake
The porosity for filtering structure is 70-90%；The air flux of the filtration is 2500-5500m3/m2·h·kpa；The filtering
The average pore size of structure is 0.05-50 μm.
8. filtration as claimed in claim 1, it is characterised in that：The thickness of 3rd filter layer is 0.02-0.3mm.
9. filtration as claimed in claim 1, it is characterised in that：The thickness of the articulamentum is 0.01-0.05mm.
10. filter element, it is characterised in that：Including the filtration described in one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312785.7U CN206334444U (en) | 2016-12-02 | 2016-12-02 | Filtration and filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312785.7U CN206334444U (en) | 2016-12-02 | 2016-12-02 | Filtration and filter element |
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| Publication Number | Publication Date |
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| CN206334444U true CN206334444U (en) | 2017-07-18 |
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| CN201621312785.7U Active CN206334444U (en) | 2016-12-02 | 2016-12-02 | Filtration and filter element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107838427A (en) * | 2017-10-31 | 2018-03-27 | 成都易态科技有限公司 | Porous sintered metal laminated film and preparation method thereof |
-
2016
- 2016-12-02 CN CN201621312785.7U patent/CN206334444U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107838427A (en) * | 2017-10-31 | 2018-03-27 | 成都易态科技有限公司 | Porous sintered metal laminated film and preparation method thereof |
| CN107838427B (en) * | 2017-10-31 | 2024-05-14 | 成都易态科技有限公司 | Porous sintered metal composite film and preparation method thereof |
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