CN201500486U - Shape memory non-woven filter material - Google Patents
Shape memory non-woven filter material Download PDFInfo
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- CN201500486U CN201500486U CN2009202085992U CN200920208599U CN201500486U CN 201500486 U CN201500486 U CN 201500486U CN 2009202085992 U CN2009202085992 U CN 2009202085992U CN 200920208599 U CN200920208599 U CN 200920208599U CN 201500486 U CN201500486 U CN 201500486U
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Abstract
The utility model discloses a shape memory non-woven filter material, which comprises a fiber filter layer, wherein shape memory alloy wires are evenly inserted into the fiber filter layer. The shapes of the shape memory alloy wires can be changed when the temperature thereof is lower than that of a shape memory transformation temperature, the shapes of the shape memory alloy wires can be restored into the original sizing shapes when the temperature thereof is higher than that of the shape memory transformation temperature, the shape memory alloy wires are inserted into the fiber filter layer, and the thickness and the density of the filter material can be changed along with the shrink or the extension of the shape memory alloy wires, so that the size and the air permeability, and the like of the gap of the filter material are changed. Therefore, the self size and the density of the gap of the shape memory non-woven filter material can be changed along with the change of the temperature of filter liquor or filter dusts, and the size and the flow of the captured grains can be intelligently controlled, so as to realize the continuity of filtrating production.
Description
Technical field
The utility model relates to a kind of non-woven filter material, specifically, relates to a kind of non-woven filter material with shape memory function.
Background technology
Filtration is widely used in every profession and trades such as industry, agricultural, national defence, environmental protection, food, and what have directly enters high-tech sector, shows status day important.Filtering material matches with the various types of filtration machine equipment or the deduster equipment of each industrial circle, makes filter medium and uses, and plays the assurance product quality; improve the product technology precision; reclaim valuable raw material, reduce the control of industrial cost and environmental protection aspect and pollute, purify air and important function such as water quality.Along with the industrial continuous development of China, filtering material has formed an important class in fabrics for industrial use.Filtration is meant the process that a kind of decentralized photo is separated from a kind of continuous phase, continuous phase is the current-carrying phase, and decentralized photo is emboliform dispersion, just separates, captures the particulate material that is scattered in gas, liquid or the larger particles shape material or a kind of method or the technology of particle.Filtering material is a kind of material with big inner surface and suitable hole that is used to filter, and it can be caught effectively and adsorb solid particle or liquid particle, makes it to separate from compounding substances.Filtration theory thinks that capturing than the filter material hole big particle of order is the sieving actoion of leaning on filter material, and capturing smaller particles then is the self-filtering effect of leaning on filter material.The self-filtering effect is to capture particle by the fiber in the filter material, and the filtration that the stratum granulosum (being called filter cake usually) that the surface filtration effect is meant in filter material or the surface of filter medium accumulation forms is produced.
Mid-term 20th century of non-woven filter material is along with the development of nonwoven techniques grows up.Non-woven filter material is as a kind of novel filter material, have that filtering efficiency is good, output is high, cost is low, easily with advantages such as other filtrates are compound, and on production line, carry out kilting easily, fold, deep processing such as compression molding.Therefore non-woven filter material development has replaced a large amount of traditional woven, knitting filtrates rapidly very soon, is applied to all trades and professions.The process technology of non-woven filter material mainly contains needle point method, spun-bond process, meltblown, wet method etc.Non-woven filter material has six big markets at present: filter core, automobile filtration, air filtration, membrane filtration, liquid filtering and filter bag air filtration, wherein filter bag air filtration is with the fastest developing speed, secondly is membrane filtration.Though present non-woven filter material has progressively satisfied acidproof because of the variation of fiber species; alkaline-resisting; resistance to chemical attack; high temperature resistant; the filtration needs of different condition such as high-strength; but in existing industrial production; when the temperature of filtrate or filter dirt along with produce produce certain variation the time; particulate in filtrate or the filter material can change thereupon; at this moment need to change the pore size of filtering material to satisfy the requirement of filtering accuracy; and prior art is to adopt the method for changing filter medium to realize this purpose; this method exists time-consuming, can influence the defective of production efficiency.If can allow filtering material itself change pore size and density along with the change of temperature, then can realize Based Intelligent Control, continuous production purpose, but do not see the report of correlation technique at present.
The utility model content
The purpose of this utility model provides a kind of non-woven filter material with temperature sense shape memory function, make filtering material can change self pore size and density thereupon, thereby realize filtering the Based Intelligent Control and the continuity of producing along with variation of temperature.
In order to realize the foregoing invention purpose, the technical solution adopted in the utility model is as follows:
Shape memory non-woven filter material provided by the utility model comprises fibrous filter layer, it is characterized in that: be interspersed with shape-memory alloy wire in the described fibrous filter layer uniformly.
The modular shapes of shape-memory alloy wire can be fixed to waveform or linear as required, and the big I of distance between its crest and trough size and the complete waveform changes according to the space of filtering material and the change in size of institute's trap particles.
The fiber of described fibrous filter layer can be natural fiber, chemical fibre or both fiber combinations.
Described natural fiber can be in cotton fiber, wool fibre, flaxen fiber and the silk any one, two or more fiber combinations.
Described chemical fibre can be in polypropylene fiber, nylon fibre, polyster fibre, acrylic fiber, polytetrafluoroethylene fibre, aromatic polyamide fibre, glass fibre, ceramic fibre, metallic fiber and the basalt fibre any one, two or more fiber combinations.
Compared with prior art, because the shape-memory alloy wire changeable shape when being lower than the shape memory transition temperature in the utility model, when being higher than the shape memory transition temperature, can reply original modular shapes, and shape-memory alloy wire interts in fibrous filter layer, filtering material can change thickness and density with the contraction or the stretching, extension of shape memory alloy wire, thereby change the pore size of filtering material, gas permeability etc., therefore, shape memory non-woven filter material described in the utility model can be along with filtrate or filter dirt variation of temperature and change self pore size and density thereupon, can carry out Based Intelligent Control to particle size and the flow that is captured, realize filtering the continuity of producing.
Description of drawings
The structural representation of the shape memory non-woven filter material that Fig. 1 is provided for embodiment 1;
The structural representation of the shape memory non-woven filter material that Fig. 2 is provided for embodiment 2;
The structural representation of the shape memory non-woven filter material that Fig. 3 is provided for embodiment 3.
Among the figure: 1, fibrous filter layer; 2, shape-memory alloy wire; 3, the space of filtering material.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail:
Embodiment 1
The shape memory non-woven filter material that present embodiment provided, intert uniformly by shape-memory alloy wire and to constitute at the stainless steel fibre filter course, shape-memory alloy wire is fixed to the bigger waveform of flexing amplitude (seeing shown in Figure 1), and the excitation temperature of used shape-memory alloy wire is 120 ℃.
When the temperature of filtrate in the work or filter dirt is lower than 120 ℃, the shape of shape-memory alloy wire in filtering material can reduce crooked amplitude as required, when the temperature of filtrate reached 120 ℃ of excitation temperatures, shape-memory alloy wire was returned to original wave-like immediately.Therefore, the filtering material of present embodiment can be elevated to more than 120 ℃ along with temperature, shape-memory alloy wire is shunk and become fluffy, thickness increases, increase in the space, so that changes self pore size, gas permeability etc., realizes the Based Intelligent Control to strainability.
The shape memory non-woven filter material that present embodiment provided, intert uniformly by shape-memory alloy wire and to constitute at the polyster fibre filter course, shape-memory alloy wire is fixed to the less waveform of flexing amplitude (seeing shown in Figure 2), and the excitation temperature of used shape-memory alloy wire is 45 ℃.
The temperature of filtrate or filter dirt is when being lower than 45 ℃ in work, and the shape of shape-memory alloy wire in filtering material can increase crooked amplitude as required, and when the temperature of filtrate reached 45 ℃ of excitation temperatures, shape-memory alloy wire was returned to original wave-like immediately.Therefore, the filtering material of present embodiment can be elevated to more than 45 ℃ along with temperature, shape-memory alloy wire is stretched and reduce in tightr, thinner, the space of becoming, so that changes self pore size, gas permeability etc., realizes the Based Intelligent Control to strainability.
The shape memory non-woven filter material that present embodiment provided, intert uniformly by shape-memory alloy wire and to constitute at the polysulphonamide fiber filter course, shape-memory alloy wire is fixed to linear (seeing shown in Figure 3), and the excitation temperature of used shape-memory alloy wire is 180 ℃.
When the temperature of filtrate in the work or filter dirt is lower than 180 ℃, the shape of shape-memory alloy wire in filtering material can be carried out bending change as required, when the temperature of filtrate reached 180 ℃ of excitation temperatures, shape-memory alloy wire was returned to original rectilinear form immediately.Therefore, the filtering material of present embodiment can become thin along with the contraction of shape-memory alloy wire and consolidation, thereby the space of filtering material is diminished, gas permeability reduction etc., realizes the Based Intelligent Control to strainability.
Claims (4)
1. a shape memory non-woven filter material comprises fibrous filter layer, it is characterized in that: be interspersed with shape-memory alloy wire in the described fibrous filter layer uniformly.
2. shape memory non-woven filter material according to claim 1 is characterized in that: the fiber of fibrous filter layer is natural fiber, chemical fibre or both fiber combinations.
3. shape memory non-woven filter material according to claim 2 is characterized in that: described natural fiber be in cotton fiber, wool fibre, flaxen fiber and the silk any one, two or more fiber combinations.
4. shape memory non-woven filter material according to claim 2 is characterized in that: described chemical fibre be in polypropylene fiber, nylon fibre, polyster fibre, acrylic fiber, polytetrafluoroethylene fibre, aromatic polyamide fibre, glass fibre, ceramic fibre, metallic fiber and the basalt fibre any one, two or more fiber combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202085992U CN201500486U (en) | 2009-08-28 | 2009-08-28 | Shape memory non-woven filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202085992U CN201500486U (en) | 2009-08-28 | 2009-08-28 | Shape memory non-woven filter material |
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| CN201500486U true CN201500486U (en) | 2010-06-09 |
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| CN2009202085992U Expired - Fee Related CN201500486U (en) | 2009-08-28 | 2009-08-28 | Shape memory non-woven filter material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979125A (en) * | 2010-09-26 | 2011-02-23 | 靳双林 | Composite needled filter felt |
| CN103370116A (en) * | 2011-02-17 | 2013-10-23 | 贝克休斯公司 | Sand screen, expandable screen and method of making |
| CN109647053A (en) * | 2018-12-06 | 2019-04-19 | 曹德财 | A kind of environmentally friendly filter cloth with self-repair function |
| CN110115885A (en) * | 2019-05-14 | 2019-08-13 | 东南大学 | A kind of intelligence based on shape-memory polymer adjusts the filter device and adjusting method of percent opening |
| CN112123626A (en) * | 2020-08-04 | 2020-12-25 | 南通瑞诚高分子材料有限公司 | Plastic particle diameter-variable self-screening method |
| CN114164636A (en) * | 2021-11-17 | 2022-03-11 | 中核同辐（长春）辐射技术有限公司 | Irradiation-resistant melt-blown fabric forming post-treatment process |
| CN114432784A (en) * | 2020-11-03 | 2022-05-06 | 中国石油化工股份有限公司 | Oil field produced liquid pre-separation equipment with bidirectional cleaning function and control method thereof |
| CN114712916A (en) * | 2020-12-22 | 2022-07-08 | 中国石油化工股份有限公司 | Oilfield produced water filter and manufacturing method thereof |
| CN116177767A (en) * | 2021-11-26 | 2023-05-30 | 中国石油化工股份有限公司 | Oilfield produced fluid pre-water separation equipment and method and filter manufacturing method |
-
2009
- 2009-08-28 CN CN2009202085992U patent/CN201500486U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979125A (en) * | 2010-09-26 | 2011-02-23 | 靳双林 | Composite needled filter felt |
| CN103370116A (en) * | 2011-02-17 | 2013-10-23 | 贝克休斯公司 | Sand screen, expandable screen and method of making |
| CN103370116B (en) * | 2011-02-17 | 2016-01-20 | 贝克休斯公司 | Sand screen, expandable screen and manufacture method thereof |
| CN109647053A (en) * | 2018-12-06 | 2019-04-19 | 曹德财 | A kind of environmentally friendly filter cloth with self-repair function |
| CN110115885A (en) * | 2019-05-14 | 2019-08-13 | 东南大学 | A kind of intelligence based on shape-memory polymer adjusts the filter device and adjusting method of percent opening |
| CN112123626A (en) * | 2020-08-04 | 2020-12-25 | 南通瑞诚高分子材料有限公司 | Plastic particle diameter-variable self-screening method |
| CN112123626B (en) * | 2020-08-04 | 2022-04-01 | 上海金浦塑料包装材料有限公司 | Plastic particle diameter-variable self-screening method |
| CN114432784B (en) * | 2020-11-03 | 2023-07-28 | 中国石油化工股份有限公司 | Oilfield produced fluid pre-separation equipment with bidirectional cleaning function and control method thereof |
| CN114432784A (en) * | 2020-11-03 | 2022-05-06 | 中国石油化工股份有限公司 | Oil field produced liquid pre-separation equipment with bidirectional cleaning function and control method thereof |
| CN114712916A (en) * | 2020-12-22 | 2022-07-08 | 中国石油化工股份有限公司 | Oilfield produced water filter and manufacturing method thereof |
| CN114712916B (en) * | 2020-12-22 | 2024-04-23 | 中国石油化工股份有限公司 | Oilfield produced water filter and manufacturing method thereof |
| CN114164636A (en) * | 2021-11-17 | 2022-03-11 | 中核同辐（长春）辐射技术有限公司 | Irradiation-resistant melt-blown fabric forming post-treatment process |
| CN116177767A (en) * | 2021-11-26 | 2023-05-30 | 中国石油化工股份有限公司 | Oilfield produced fluid pre-water separation equipment and method and filter manufacturing method |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20100828 |