CN1058440A - Oil filter paper - Google Patents
Oil filter paper Download PDFInfo
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- CN1058440A CN1058440A CN 91105482 CN91105482A CN1058440A CN 1058440 A CN1058440 A CN 1058440A CN 91105482 CN91105482 CN 91105482 CN 91105482 A CN91105482 A CN 91105482A CN 1058440 A CN1058440 A CN 1058440A
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- filter paper
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- fibre
- wood pulp
- glass fibre
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Abstract
The present invention relates to a kind of oil filter paper; particularly relate to a kind of filtering accuracy height, aviation fuel filter paper that contamination capacity is big; it is formed by receiving pollution layer, filter bed of essence and protective layer; the pollution layer of wherein receiving is made up of wood pulp and glass fibre or wood pulp, cotton pulp, synthetic fiber; filter bed of essence is made up of ceramic fibre or glass fibre, and protective layer is made up of cellulose fibre.
Description
The present invention relates to a kind of oil filter paper, particularly relate to a kind of filtering accuracy height, aviation fuel filter paper that contamination capacity is big.It belongs to the novel filter medium that the oil material contamination Control Engineering is used.International Patent classificating number is D21H.
People know that the solid particle in the aviation fuels brings bad influence can for the work of aircraft, the serious serious accident that also can cause the fatal crass, thereby, must be before aircraft utilization is given in filling through strict filtration.Filter paper is domestic and international widely used filter medium.But the filter paper of existing homogeneous single layer structure is only paid attention to the effect of the surperficial interception mechanism of performance, and has ignored the effect of deep layer interception and absorption mechanism, and its comprehensive serviceability is undesirable, or the filtering accuracy deficiency, the as above HM-530 filter paper of marine products, P220 filter paper.Though the filtering accuracy that has is high, contamination capacity is low, as the pure glass filter paper of Tianjin product.Therefore, the contradiction between filter paper filtering precision and the contamination capacity is very outstanding.
Russian Patent SU594229 discloses double-deck filter paper, and filter bed of essence is made up of xylon, asbestos and filler; The coarse filtration layer is made up of xylon and cotton fiber, can partly solve the defective of homogeneous single layer structure like this, not only improves filtering accuracy but also pollutant holding capability is increased.But do not handle because two filtering layers all carry out impregnation, on the one hand, may reduce filtering accuracy and filtration capacity, on the other hand, also may be owing to coming off of fiber influences filter effect.
The object of the present invention is to provide a kind of oil filter paper novel, that have good comprehensive serviceability, a kind of multilayer filter paper of taking into account filtering accuracy and pollutant holding capability particularly is provided.That the present invention adopts is heterogeneous, the composite construction of multilayer, has given full play to the effect of deep layer interception and absorption mechanism, thereby has successfully solved high accuracy and the contradiction between the contamination capacity greatly.
Filter paper of the present invention is divided into:
(1) receives pollution layer: form by wood pulp, cotton pulp and synthetic fiber.Preferably by softwood pulp and glass fibre; Perhaps wood pulp, cotton pulp and synthetic fiber, this layer has bigger aperture and air permeability, and thickness is 0.5mm.
(2) filter bed of essence: be made up of ceramic fibre or glass fibre, have comparatively suitable aperture and air permeability, thickness is 0.4mm.
(3) protective layer: form by cellulose fibre, preferably form by wood pulp and cotton pulp.Aperture and air permeability are bigger, and thickness is 0.4mm.
In order to make filter paper have certain mechanical strength and structural stability; make simultaneously that fiber is unlikely to come off and strengthen filter effect, will receive pollution layer and protective layer carries out impregnation and handles, and its impregnating resin is identical; be 203 phenolic resins (Tianjin resin processing plant product), and add an amount of curing agent.
Filter paper of the present invention has favorable mechanical performance and strainability, and absolute filtering accuracy can reach 5 μ m or 3 μ m, and contamination capacity can reach 60g/m
2More than, and the fibre shedding amount is little, and electrostatic electrification is low, has good compatibility with fuel oil, lubricating oil and hydraulic oil.Filter paper of the present invention is specially adapted to aviation fuel oil, and lubricating oil and hydraulic pressure oil filtration also are applicable to the filtration, purification of the oil plant that other cleanliness factor is had relatively high expectations.
The applicant finds, if filter paper density is even, particulate pollutant is not equally distributed on whole thickness direction, but the deposit on upper strata is many, and the deposit of lower floor is few, and the deposit of upper epidermis is too much, form surperficial filter cake easily, thereby pressure reduction is risen rapidly, and this is a kind of highly undesirable filtration situation, because all holes that it does not make full use of on the whole thickness direction hold pollutant.
For improving the contamination capacity of filter paper, prolong the service life of filter paper, and improve filtering accuracy simultaneously, reduce initial pressure difference, filter paper of the present invention is composited by the three layer filtration medium.
Receive pollution layer: form by a certain proportion of wood pulp and glass fibre or wood pulp, cotton pulp and synthetic fiber, its ratio can change to some extent according to the difference that is filtered oil plant, this is conspicuous to this professional domain those of ordinary skill, these change all within the scope of the invention, preferentially select 52% softwood pulp for use, 8% glass fibre, 40% through the light wood pulp, its thickness is generally 0.5mm.Be 110-120g/m quantitatively
2, aperture 10-60 μ m, average pore size 40 μ m, air permeability 50-60L/min.cm
2
Filter bed of essence: be made up of glass fibre or ceramic fibre and dispensable cotton fiber, its ratio can change according to the difference that is filtered oil plant, and this is conspicuous to those skilled in the art, and these variations all comprise within the scope of the invention.Its thickness is generally 0.4 ± 0.02mm, quantitatively 120g/m
2, aperture 1-15 μ m, average pore size 8 μ m, air permeability 30-40L/min.cm
2, preferentially select for use and allocate 2% cotton fiber into.
Protective layer: be made up of wood pulp and cotton pulp, its ratio can change according to the difference that is filtered oil plant, and this is conspicuous to those skilled in the art, and these variations all comprise within the scope of the invention.Preferentially select 50% softwood pulp and 50% cotton pulp for use, its thickness is generally 0.4 ± 0.02mm, quantitatively 100-110g/m
2, aperture 15-80 μ m, average pore size 50 μ m, air permeability 70-80L/min.cm
2
In order to prevent that filter paper from falling fiber, cause the secondary pollution of oil plant, and the pressure reduction of the mechanical strength that improves filter paper when bearing work, and improve filter effect, will receive pollution layer and protective layer carries out impregnation and handles.Glue is made up of 203 phenolic resins, polyvinyl butyral resin, hexamethylenetetramine, industrial alcohol.The prescription of preferentially selecting for use is:
203 phenolic resins 20%
Polyvinyl butyral resin 2%
Hexamethylenetetramine 2%
Industrial alcohol 76%
The gel content that impregnation is handled back filter paper is 20-23%.
The compound order of filter paper of the present invention is: receive pollution layer, filter bed of essence and protective layer behind the impregnation.Three layers are heating and curing after folding together, and the condition of preferentially selecting for use is: 160 ℃, and 25 minutes.It is stand-by that filter paper after the curing can directly be processed into the filter paper of various sizes.
Performance of filter paper sees the following form:
Contamination capacity (g/m
2) filtering accuracy (μ m) specific filtration resistance (β
x) initial pressure difference (mPa)
U.S. Velcon paper 36.78 3 173 0.055
Shanghai 530 paper 16.12 15 190 0.06
Shanghai 220 paper 40.74 25 118 0.005
Tianjin glass paper 6.79 3 268 0.05
YLZ-5(paper 1 of the present invention) 63.66 5 413 0.02
YLZ-3(paper 2 of the present invention) 62.25 3 490 0.045
Claims (2)
1, a kind of oil plant filter paper is characterized in that being composited by three layers,
A, receive pollution layer: make by wood pulp and glass fibre or wood pulp, cotton pulp and synthetic fiber,
B, filter bed of essence: make by ceramic fibre or glass fibre,
C, protective layer: make by cellulose fibre.
2, according to the filter paper of claim 1, wherein:
A, receive pollution layer: make by softwood pulp and glass fibre or wood pulp, cotton pulp and synthetic fiber,
B, filter bed of essence: form by ceramic fibre or glass fibre and dispensable cotton fiber,
C, protective layer: make by wood pulp and cotton pulp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91105482 CN1018941B (en) | 1991-08-14 | 1991-08-14 | Oil filter paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91105482 CN1018941B (en) | 1991-08-14 | 1991-08-14 | Oil filter paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1058440A true CN1058440A (en) | 1992-02-05 |
| CN1018941B CN1018941B (en) | 1992-11-04 |
Family
ID=4907177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91105482 Expired CN1018941B (en) | 1991-08-14 | 1991-08-14 | Oil filter paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018941B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619131A (en) * | 2012-03-14 | 2012-08-01 | 杭州新华集团有限公司 | Colloidal gold immune matched water absorbent material and preparation method thereof |
| CN102872652A (en) * | 2012-09-25 | 2013-01-16 | 蚌埠凤凰滤清器有限责任公司 | Filter paper containing modified dickite powder |
| CN102877368A (en) * | 2012-09-20 | 2013-01-16 | 蚌埠凤凰滤清器有限责任公司 | High temperature resistant flame retardant filter paper used for diesel filter and preparation method thereof |
| CN105986526A (en) * | 2016-01-29 | 2016-10-05 | 蚌埠首创滤清器有限公司 | Carbon nano-tube enhancement type hydraulic filter paper for filters |
| CN105986510A (en) * | 2016-01-29 | 2016-10-05 | 蚌埠首创滤清器有限公司 | High-temperature-resistant hydraulic oil filter paper for filter elements |
| CN106368073A (en) * | 2016-08-30 | 2017-02-01 | 苏州华泰空气过滤器有限公司 | Composite reinforced filter paper |
| CN106368072A (en) * | 2016-08-30 | 2017-02-01 | 苏州华泰空气过滤器有限公司 | Production method of composite enhanced filter paper |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172206B (en) * | 2006-11-01 | 2011-06-22 | 王金夫 | Filter-oil paper |
| CN105498550A (en) * | 2015-12-10 | 2016-04-20 | 华南理工大学 | Nonwoven cloth composite nanofiltration membrane and preparation method and application thereof |
-
1991
- 1991-08-14 CN CN 91105482 patent/CN1018941B/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619131A (en) * | 2012-03-14 | 2012-08-01 | 杭州新华集团有限公司 | Colloidal gold immune matched water absorbent material and preparation method thereof |
| CN102619131B (en) * | 2012-03-14 | 2016-08-10 | 杭州新华集团有限公司 | Supporting absorbent material of colloid gold immune and preparation method thereof |
| CN102877368A (en) * | 2012-09-20 | 2013-01-16 | 蚌埠凤凰滤清器有限责任公司 | High temperature resistant flame retardant filter paper used for diesel filter and preparation method thereof |
| CN102877368B (en) * | 2012-09-20 | 2014-10-29 | 蚌埠凤凰滤清器有限责任公司 | High temperature resistant flame retardant filter paper used for diesel filter and preparation method thereof |
| CN102872652A (en) * | 2012-09-25 | 2013-01-16 | 蚌埠凤凰滤清器有限责任公司 | Filter paper containing modified dickite powder |
| CN102872652B (en) * | 2012-09-25 | 2014-08-27 | 蚌埠凤凰滤清器有限责任公司 | Filter paper containing modified dickite powder |
| CN105986526A (en) * | 2016-01-29 | 2016-10-05 | 蚌埠首创滤清器有限公司 | Carbon nano-tube enhancement type hydraulic filter paper for filters |
| CN105986510A (en) * | 2016-01-29 | 2016-10-05 | 蚌埠首创滤清器有限公司 | High-temperature-resistant hydraulic oil filter paper for filter elements |
| CN106368073A (en) * | 2016-08-30 | 2017-02-01 | 苏州华泰空气过滤器有限公司 | Composite reinforced filter paper |
| CN106368072A (en) * | 2016-08-30 | 2017-02-01 | 苏州华泰空气过滤器有限公司 | Production method of composite enhanced filter paper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1018941B (en) | 1992-11-04 |
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