CN102824788A - High-efficiency and long-service life compound filter material structure used for car engine and preparation method for compound filter material structure - Google Patents
High-efficiency and long-service life compound filter material structure used for car engine and preparation method for compound filter material structure Download PDFInfo
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- CN102824788A CN102824788A CN2012103279173A CN201210327917A CN102824788A CN 102824788 A CN102824788 A CN 102824788A CN 2012103279173 A CN2012103279173 A CN 2012103279173A CN 201210327917 A CN201210327917 A CN 201210327917A CN 102824788 A CN102824788 A CN 102824788A
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Abstract
The invention relates to a high-efficiency and long-service life compound filter material structure used for a car engine and a preparation method for the compound filter material structure. A main body of the compound filter material structure consists of N+1 filter layer structures. A first to N<th> fiber filter layers which are different in thickness, fiber diameter and porosity and a N+1<th> polytetrafluoroethylene (PTFE) dipped plating film are arranged in sequence from a windward side inwards. The preparation method for the compound filter material structure comprises the following steps of: preparing all fiber filter layer structures in sequence from the windward side inwards, and finally, plating a PTFE film on an innermost filter layer in the manner of dipping. The design of the compound filter material structure is mainly characterized in that the thickness, the fiber diameter and the porosity of each fiber filter layer are determined through the particulate matter filter theory and the computational fluid mechanics technology, and while the clogging capacity and the filter efficiency are optimal, the filter material structure is small in resistance change, long in service life and small in thickness but high in efficiency of dust collection. The compound filter material structure is compact in design structure, is specially suitable for being used by a filter material which is used for providing clean air to the car engine and is of a filter structure, and also can be directly used as filter material structures of other air filters.
Description
Technical field
The invention belongs to air ambient purification techniques field, be specifically related to a kind of car engine with efficient and long life composite filtering material structure and preparation method thereof.
Background technology
The air cleaner cartridge that car engine is used divides by filtering material, has experienced oil wet, oil-bath type and has arrived papery filter core three phases again.Metal net shaped filter core has been tending towards superseded in the automobile air filtration system because filter efficiency is too low.Begin from the fifties, new material papery filter core occurred, technical process is constantly perfect, has the filter efficiency height, is 95% ~ 99%, and cost is low, and is easy to maintenance, and physical dimension is little, thereby obtains to be widely used.But because particle is seriously polluted in the road environment of vehicle ', be prone to cause plugged filter, the life-span is short, and it is too frequent to make filter change.For high capacity waggon, respectively change frequency in addition up to per 600 kilometers 1 time.Simultaneously, existing filter intensity is low damaged easily, loses the filtering effect.
The air filting material that car engine is used need comprise following several respects performance: (1) filter efficiency is high; (2) gas-flow resistance is little; (3) mechanical strength is big; (4) good uniformity; (5) satisfy requirements such as long service life.The following shortcoming of filter structure ubiquity of the filter that engine uses yet get on the car in present domestic market: the one, filter structure is single, and filter efficiency is lower; The 2nd, in the filtrate use, hold the dirt irrational distribution, outer few in many, form surface filtration at filter material surface, resistance increases than very fast, has reduced filtrate service life.
Summary of the invention
The present invention is directed to car engine and have above technical problem with filtrate in the air cleaner; Through particle filtration theory and Fluid Mechanics Computation technology filter structure and function have been carried out scientific and reasonable design, provide a kind of car engine with efficient and long life composite filtering material structure and preparation method thereof.
A kind of car engine provided by the invention is used in the air cleaner of car engine with efficient and long life composite filtering material structure specially, and to reach the air filter efficiency height, change in resistance is little in the use, and mechanical strength is high, characteristics such as long service life.
The present invention is for reaching above specification requirement, and the technical scheme of being taked is:
A kind of car engine that the present invention proposes is with efficient and long life composite filtering material structure; Said filter structure is formed by stacking by N+1 layer filter course, inwardly is followed successively by ground floor by the windward side and is formed by stacking to the fibrous filter layer of N layer different-thickness, different fibre diameter and porosity and N+1 layer PTFE dipping coatings; From the windward side inwardly, ground floor reduces to thickness, fibre diameter and the porosity of the fibrous filter layer of N layer successively; Wherein N is more than or equal to 2.
Among the present invention, each fibrolaminar number of plies, thickness, fibre diameter and porosity confirm that through the method for particle filtration theory and Fluid Mechanics Computation the first fibrage diameter is the 10-20 micron, and the second fibrage diameter is the 1-8 micron.
Among the present invention, said fibrous filter layer adopts glass fibre.
A kind of car engine that the present invention proposes is with the preparation method of efficient and long life composite filtering material structure, and concrete steps are following:
According to preparing each fibrous filter layer structure successively by the inside order in windward side; Behind one deck fibrous filter layer dehydration 60-70% that its one-tenth gauze that is positioned over paper machine is surperficial before treating; One deck fibrous filter layer under its surface spraying is made; The rest may be inferred, at last dipping plating N+1 layer filtration PTFE film on N layer fibrous filter layer.
Among the present invention; The efficient and long life composite filtering material structure that described a kind of car engine is used; Each fibrolaminar thickness, fibre diameter and porosity confirm that through the method for particle filtration theory and Fluid Mechanics Computation inwardly thickness, fibre diameter and the porosity of each layer reduce successively by the windward side; Dust is descending in the filtrate course of work rationally is deposited in each fibrous filter layer successively, and last one deck PTFE film guarantees high filtration efficiency; Filter structure of the present invention has been taken into account the optimization of dust containing capacity and filter efficiency, has reduced the thickness and the resistance of filter structure, makes 3 times that rise to existing level in filter efficiency and service life.
Among the present invention; Said filter structure level can be according to the different fibre diameter and the porositys that change level quantity, thickness and each layer of fiber of the quality of dissimilar vehicle drive environment air, thereby reach the optimization of dust containing capacity and filter efficiency in different air ambients.
Among the present invention, the efficient and long life composite filtering material structure that described a kind of car engine is used is suitable for overcoming existing filter cartridge construction inefficiency, the shortcoming that service life is short for car engine provides clean air specially.
The present invention relates to the efficient and long life composite filtering material structure that a kind of car engine is used, compare, it is advantageous that with the filter structure in the air cleaner that the car engine of selling on the market is used:
(1) the present invention changes the space state of one-component fibrous paper in order to improve the strainability of filtering material, adopts the filter course of the fiber collocation preparation different porosities of different fibre diameters, is formed by stacking by a graded.
Deficiencies such as (2) the present invention has remedied general filtration function singleness, gas-flow resistance is big, the life-span is low; Owing to adopted multicomponent fibre, the filtration of preparation not only porosity is high, and has rational geometry and pore-size distribution; Can bring into play the structure effect and the screen effect of filtering material; Thereby filter efficiency is high, and gas-flow resistance is low, and tensile strength also is greatly improved.
(3) the present invention adopts particle filtration theory and Fluid Mechanics Computation technology; Diameter and porosity according to fiber filtering in the particulate pollutant characteristics design fibrous filter layer of car steering environment; And the fibrolaminar thickness and the number of plies etc., make performance such as filter structure efficiency of dust collection according to the invention can both reach optimum.
Description of drawings
Fig. 1 filter structure sketch map of the present invention.
The double-deck fiber filtering structural representation of Fig. 2 the present invention.
Three layers of fiber filtering structural representation of Fig. 3 the present invention
Label among the figure: 1 is first fibrous filter layer, and 2 is second fibrous filter layer, and 3 is the 3rd fibrous filter layer, and N is the N fibrous filter layer, and 4 is N+1N layer PTFE dipping coatings.
The specific embodiment
Comply with the concrete example that technical scheme of the present invention is accomplished below in conjunction with accompanying drawing 1-3 and inventor, the present invention is made further detailed description.
Embodiment 1:
As shown in Figure 1; The efficient and long life composite filtering material structure that a kind of car engine is used; Its main structure body is made up of N+1 layer filtering layer structure, inwardly is followed successively by first fibrous filter layer and the N+1 layer PTFE dipping coatings to N layer different-thickness, different fibre diameter and porosity by the windward side.
The preparation method of composite filtering material structure of the present invention is: at first utilize particle filtration theory and Fluid Mechanics Computation technology to confirm the number of plies, each layer thickness and the fibre diameter and the porosity of fiber filtering under the specified conditions requirement; According to preparing each layer fiber filtering structure successively by the inside order in windward side, dipping plates one deck PTFE film on innermost layer fiber filtering layer at last.
Inwardly thickness, fibre diameter and the porosity of each layer reduce composite filtering material structure according to the invention successively by the windward side; Dust is descending in the filtrate course of work rationally is deposited in each glass filter course successively, and last one deck PTFE film guarantees high filtration efficiency.
Embodiment 2:
As shown in Figure 2; The efficient and long life composite filtering material structure that a kind of car engine is used; Its main structure body is made up of 3 layers of filtering layer structure; Inwardly being followed successively by 0.3mm thick fiber diameter by the windward side is 10 microns first fibrous filter layer 1, and 0.2mm thick fiber diameter is 2 micron second fibrous filter layer 2 and PTFE dipping coatings 4.
The preparation method of composite filtering material structure of the present invention is at first to utilize particle filtration theory and Fluid Mechanics Computation technology to confirm to satisfy the fibre diameter and the porosity of two fibrous filter layers under filtration velocity distribution and the filtration resistance optimal condition; Make the first thick fibrous filter layer 1 of 0.3mm earlier according to fibre diameter of confirming and the required filtrate proportioning of porosity; Treat behind its dehydration 60%-70% it to be positioned over the one-tenth gauze surface of paper machine; Lay the second thick fibrous filter layer 2 of 0.2mm, treat after its oven dry surface impregnation plating one deck PTFE dipping plated film 4 second fibrous filter layer 2.
Inwardly thickness, fibre diameter and the porosity of each layer reduce composite filtering material structure according to the invention successively by the windward side; Dust is descending in the filtrate course of work rationally is deposited in each glass filter course successively, and last one deck PTFE film guarantees high filtration efficiency; The two-layer glass filtering layer structure of the present invention is compared with existing individual layer glass filtration, improves under the identical situation in filtration resistance, and be 2 times of existing individual layer glass filtration service life.
Embodiment 3:
As shown in Figure 3; The efficient and long life composite filtering material structure that a kind of car engine is used; Its main structure body is made up of 4 layers of filtering layer structure; Inwardly be followed successively by the first thick fibrous filter layer 1 of 0.25mm by the windward side, second fibrous filter layer 2 that 0.15mm is thick, the 3rd fibrous filter layer 3 and PTFE dipping coatings 4 that 0.1mm is thick.
The preparation method of composite filtering material structure of the present invention is at first to utilize particle filtration theory and Fluid Mechanics Computation technology to confirm the fibre diameter and the porosity of three layers of glass filter course; Make thick first fibrous filter layer 1 of 0.25mm earlier according to fibre diameter of confirming and the required filtrate proportioning of porosity; Treat behind its dehydration 60%-70% it to be positioned over the one-tenth gauze surface of paper machine; Lay the second thick fibrous filter layer 2 of 0.15mm; Treat behind its dehydration 60%-70% it to be positioned over one-tenth gauze surface of paper machine, lay the 3rd thick fibrous filter layer 3 of 0.1mm, treat after its oven dry surface impregnation plating one deck PTFE film the 3rd fibrous filter layer 3.
Inwardly thickness, fibre diameter and the porosity of each layer reduce composite filtering material structure according to the invention successively by the windward side; Dust is descending in the filtrate course of work rationally is deposited in each glass filter course successively, and last one deck PTFE film guarantees high filtration efficiency.Three layers of glass filtering layer structure of the present invention are compared with existing individual layer glass filtration, improve under the identical situation in filtration resistance, and be 2.5-3 times of existing individual layer glass filtration service life.
Claims (4)
1. a car engine is with efficient and long life composite filtering material structure; It is characterized in that said filter structure is formed by stacking by N+1 layer filter course, inwardly be followed successively by ground floor by the windward side and be formed by stacking to the fibrous filter layer of N layer different-thickness, different fibre diameter and porosity and N+1 layer PTFE dipping coatings; From the windward side inwardly, ground floor reduces to thickness, fibre diameter and the porosity of the fibrous filter layer of N layer successively; Wherein N is more than or equal to 2.
2. car engine according to claim 1 is with efficient and long life composite filtering material structure; It is characterized in that each fibrolaminar number of plies, thickness, fibre diameter and porosity are definite through the method for particle filtration theory and Fluid Mechanics Computation; The first fibrage diameter is the 10-20 micron, and the second fibrage diameter is the 1-8 micron.
3. car engine according to claim 1 is characterized in that with efficient and long life composite filtering material structure said fibrous filter layer adopts glass fibre.
4. a car engine as claimed in claim 1 is characterized in that with the preparation method of efficient and long life composite filtering material structure concrete steps are following:
According to preparing each fibrous filter layer structure successively by the inside order in windward side; Behind one deck fibrous filter layer dehydration 60-70% that its one-tenth gauze that is positioned over paper machine is surperficial before treating; One deck fibrous filter layer under its surface spraying is made; The rest may be inferred, at last dipping plating N+1 layer filtration PTFE film on N layer fibrous filter layer.
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| CN2012103279173A CN102824788A (en) | 2012-09-07 | 2012-09-07 | High-efficiency and long-service life compound filter material structure used for car engine and preparation method for compound filter material structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964891A (en) * | 2015-07-10 | 2015-10-07 | 北京市环境保护监测中心 | Detection method of no-clean particulate matter concentration as well as sampling apparatus and sampling device |
| CN116392895A (en) * | 2023-03-22 | 2023-07-07 | 江苏绿地环保滤材有限公司 | Nonwoven filter material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1795321A (en) * | 2003-05-23 | 2006-06-28 | 贝克特股份有限公司 | Diesel soot particulate filter medium |
| CN101530699A (en) * | 2009-03-16 | 2009-09-16 | 安徽工业大学 | Non-woven filter material in ventilation dust-filtering system and preparation method thereof |
| CN101927110A (en) * | 2010-08-27 | 2010-12-29 | 宋朋泽 | Anti-static glass fiber composite echelon filter material and preparation method thereof |
| CN201871283U (en) * | 2010-08-27 | 2011-06-22 | 宋朋泽 | Basalt fiber compound echeloned filter material for waste incineration |
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2012
- 2012-09-07 CN CN2012103279173A patent/CN102824788A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1795321A (en) * | 2003-05-23 | 2006-06-28 | 贝克特股份有限公司 | Diesel soot particulate filter medium |
| CN101530699A (en) * | 2009-03-16 | 2009-09-16 | 安徽工业大学 | Non-woven filter material in ventilation dust-filtering system and preparation method thereof |
| CN101927110A (en) * | 2010-08-27 | 2010-12-29 | 宋朋泽 | Anti-static glass fiber composite echelon filter material and preparation method thereof |
| CN201871283U (en) * | 2010-08-27 | 2011-06-22 | 宋朋泽 | Basalt fiber compound echeloned filter material for waste incineration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964891A (en) * | 2015-07-10 | 2015-10-07 | 北京市环境保护监测中心 | Detection method of no-clean particulate matter concentration as well as sampling apparatus and sampling device |
| CN116392895A (en) * | 2023-03-22 | 2023-07-07 | 江苏绿地环保滤材有限公司 | Nonwoven filter material and preparation method thereof |
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Application publication date: 20121219 |