CN102489404B - Electret polypropylene thermoplastic bar electrostatic precipitation filter - Google Patents
Electret polypropylene thermoplastic bar electrostatic precipitation filter Download PDFInfo
- Publication number
- CN102489404B CN102489404B CN201110417353.8A CN201110417353A CN102489404B CN 102489404 B CN102489404 B CN 102489404B CN 201110417353 A CN201110417353 A CN 201110417353A CN 102489404 B CN102489404 B CN 102489404B
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- electrostatic
- polypropylene
- polypropylene thermoplastic
- electret
- thermoplastic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Filtering Materials (AREA)
Abstract
The invention provides an electret polypropylene thermoplastic bar electrostatic precipitation filter, which comprises a frame and a metal grid protecting layer, a grid positive and negative polypropylene thermoplastic bar electrostatic generator, a polyurethane foamed plastic layer, another grid positive and negative polypropylene thermoplastic bar electrostatic generator and another metal grid protecting layer which are arranged in the frame sequentially, wherein the polyurethane foamed plastic layers have negative electrostatic property and are provided with holes. The filter is capable of purifying suspension particles and dust in air without generation of ozone or other secondary harmful pollutants, is capable of solving the problems of cost economization and environmental protection, which are caused due to the fact that filters of existing cleaning air conditioners and civil air conditioners are required to be changed frequently.
Description
Technical field
The present invention relates to a kind of electret polypropylene thermoplastic bar electrostatic precipitation filter, particularly a kind of air cleaning unit electret polypropylene thermoplastic bar electrostatic precipitation filtering technique being applied to civilian ventilating system for central air-conditioner and clean air-conditioning system.
Background technology
The air-conditioning system of clean industry and civil buildings needs because of purity requirements in air handling process dust contained in air, fine particles, the pollutants such as bacterium carry out purified treatment, at present, many air-conditioning systems are all adopt common non-woven fabric, electrostatic non-woven cloth, the materials such as glass fibre are as air filting material, but due to common non-woven fabric, glass fibre to clean, substantially be single use, and though electrostatic class non-woven fabrics is severe with electrostatic electricity, but it in use also produces the severe abatement of electrostatic because of the impact of working environment, also just must change after can only carrying out 2 to 3 cleanings service life, put aside as useless, the dust containing capacity of above-mentioned three kinds of filtering materials is limited simultaneously, it is general when dust containing capacity reaches the twice of its initial resistance, just must change, can not re-use.This requires higher factory for lustration class, is great cost consumption as the clean air-conditioning systems such as food manufacturer, bio-pharmaceuticals factory, high-end electronic manufacturer, hospital operating room, ICU region.
In recent years, the research and development of effective air filting material is rapid.Air filting material tends to pursue high filter efficiency, but with regard to prior art level, air filter efficiency is higher, and the pressure drop of air filting material is larger, and the loss of pressure drop does not have effective solution.So, how effectively solve in prior art and need the technical problem changing filter to be in a large number that the technological innovation of domestic and international clean industry field Gonna breakthrough is pursued.
At present, the optimal material of melt-blowing nonwoven (electrostatic non-woven cloth) as air cleaner electret is first elected in the world.The production technology of melt-blowing nonwoven is exactly that fluoropolymer resin raw material enters extruder, the polymer that extruding obtains after dissolving, diameter 2-5mm fiber is formed through spinneret ejection, by the stretching of two strands of high-speed air flows, the polymer fiber of ejection falls and forms fleece on the collector, melt-blowing nonwoven due to fiber very thin, surface area is very big.Therefore, be used as outstanding air cleaner material always.The melt-blowing nonwoven of current domestic main employing is polypropylene fibre.
Allowing melt-blowing nonwoven become electret is generally adopt electrostatic charging method.The electrostatic charging technology that each manufacturing firm adopts is not quite similar.The corona discharge method of what current employing was more is biased high current charges method, low-voltage, makes the electric charge of ionization be embedded in fiber under aerodynamic effect, forms the severe electret of electrostatic.
Research shows, adopt Meltblown nonwoven fibrous electret air filtering material material, its electrostatic effect is most important, when the increase of specific filtration resistance speed, particle movement speed is accelerated, and the attraction that the electric charge on fabric strip produces or induction force weaken relatively, and namely electric-field intensity dies down relatively, the effect of Coulomb force to particulate diminishes particle movement track close to air-flow streamline, causes the severe precipitation of its electrostatic to decline.Therefrom be not difficult to find out, because they rely on more electrostatic charge, thus make the synthetic filter mechanism of air filting material very complicated, research also shows, the filter efficiency of fabric filter with dust is risen gradually, and electrostatic non-woven cloth electret filter is along with the sedimentation and filtration efficiency of dust declines gradually.
Summary of the invention
Object of the present invention is exactly to overcome the technological deficiency that existing air filter filtration mechanism is complicated, filter efficiency is poor, filtering material loss is high, providing a kind of air cleaning unit electret polypropylene thermoplastic bar electrostatic precipitation filter being applied to ventilating system for central air-conditioner and clean air-conditioning system.
The present invention is achieved in that
The invention provides a kind of electret polypropylene thermoplastic bar electrostatic precipitation filter, comprise the metal grill protective layer be arranged in order in a framework and framework, latticed both positive and negative polarity polypropylene thermoplastic rod electrostatic generator, the polyurethane foam layer being provided with perforate of band negative pole electrostatic property, latticed both positive and negative polarity polypropylene thermoplastic rod electrostatic generator, metal grill protective layer.Filter course can be limited within external frame by metal grill protective layer, can provide a plane that can increase electrostatic efficiency simultaneously.
Technical scheme of the present invention can do following optimization:
Described latticed both positive and negative polarity polypropylene thermoplastic rod electrostatic generator comprises latticed positive pole polypropylene electrostatic and amasss nitride layer and latticed negative pole polypropylene electrostatic amasss nitride layer.Wherein, latticed positive pole polypropylene electrostatic amass nitride layer air-flow by time produce positive electricity electric charge by friction, latticed negative pole polypropylene electrostatic amass nitride layer air-flow by time produce negative electricity electric charge by friction.
Described latticed positive and negative electrode polypropylene electrostatic amasss the polypropylene thermoplastic bar construction having positive and negative electrode stationed that nitride layer interweaves by longitude and latitude, wherein, the polypropylene thermoplastic rod multiply electret capacitance polypropylene thermoplastic bar construction of warp direction, the polypropylene thermoplastic torch of weft direction is then formed with sub-thread electret capacitance polypropylene thermoplastic torch.
The sub-thread diameter of described electret capacitance polypropylene thermoplastic rod is 0.2mm.
The excellent sub-thread thermoplastic torch by more than 3 strands of thermoplastic of described warp direction is formed side by side, and with distance within 10mm separately, weft direction is then formed with sub-thread sub-thread thermoplastic torch, and to be not more than 0.2mm distance separately.
The thickness of described polyurethane foam layer is 15mm-20mm.This open-cell material air-flow by time produce electrostatic, and this electrostatic can improve latticed positive and negative electrode polypropylene electrostatic amasss positive-negative polarity between nitride layer, and by the isolation of relative thickness, there is dust accretions the charging zone that foam layer can prevent latticed positive and negative electrode polypropylene electrostatic from amassing between nitride layer, thus promotes the ability of filter accommodation dust.Except electro static filtering character, the foam layer of perforate also can use as filter during traditional shock, and, the dust in air-flow can be broken up, make it make level and move both vertically, thus improve the efficiency of electrode layer.
The diameter of the metal wire of described metal grill protective layer is 0.8-1mm.
15mm is spaced apart between described metal wire.
The present invention has following beneficial effect:
(1) the present invention utilizes electret polypropylene thermoplastic bar electrostatic precipitation filtering technique to carry out purified treatment to the suspended particulate substance in air, dust, pollen, and electret capacitance modified polypropene thermoplastic rod electrostatic precipitation filter does not produce ozone and other secondary noxious pollutant in running simultaneously.
(2) after testing, the present invention is when initial resistance is 50Pa, and the filter efficiency of 2 micro particles reaches 64%, and the particulate filter being low to moderate 0.1 micron (ten million/a meter) can be fallen, filter efficiency is high, good filtration effect.
(3) the present invention adopts modified polypropene thermoplastic rod electrostatic field filter core, cleaning agent or clear water can be utilized regularly to clean, do not need special maintenance, the original high-effective dust-removing of filter, low windage characteristic can be recovered after each cleaning, guaranteeing that filter can be reused in 5 years, clean air conditioner being solved well every year because changing several ten million non-woven fabrics, glass fibre, electrostatic non-woven cloth filter and the cost that causes increases and the discarded environmental issue that they bring.
(4) the present invention has high efficiency filter ability and larger dust capaciting ability; therefore better protective effect is also played to the surface cooler clean surface of clean air conditioner process unit; allow surface cooler can give play to larger caloic when carrying out the work of air hot and humid area and exchange usefulness; lower refrigeration (heat) energy loss, thus for user saving, lower more electric power energy consumption.Meanwhile, the present invention also plays a very good protection to cleaning in air supply duct, user can be helped to reduce the clearing times of air conditioner system air blast pipeline, thus alleviate cost of business operation.
(5) assembly and disassembly of the present invention easy and simple to handle, spend cheap.
Accompanying drawing explanation
Embodiments of the present invention are described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is cut away left side view of the present invention.
Fig. 2 is top view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1:
See Fig. 1 and Fig. 2, the present invention includes the metal grill protective layer 2 be arranged in order in aluminum alloy frame 1 and framework, latticed positive pole polypropylene electrostatic amasss nitride layer 3 and latticed negative pole polypropylene electrostatic amasss nitride layer 4, be with the polyurethane foam layer 5 being provided with perforate of negative pole electrostatic property, latticed positive pole polypropylene electrostatic amasss nitride layer 3 and latticed negative pole polypropylene electrostatic amasss nitride layer 4, metal grill protective layer 2.
Latticed positive pole polypropylene electrostatic amasss nitride layer 3 and latticed negative pole polypropylene electrostatic and amasss the polypropylene thermoplastic bar construction having positive and negative electrode stationed that nitride layer 4 interweaves by longitude and latitude, wherein, the polypropylene thermoplastic rod of warp direction is formed side by side with 3 strands of electret capacitance polypropylene thermoplastic rods, and with distance within 10mm separately, weft direction is then formed with sub-thread sub-thread thermoplastic torch, and to be not more than 0.2mm distance separately.The sub-thread diameter of electret capacitance polypropylene thermoplastic torch is 0.2mm.
The thickness of polyurethane foam layer can select a value at 15mm-20mm.
The diameter of the metal wire of metal grill protective layer can select a value at 0.8-1mm.15mm is spaced apart between metal wire.
The present invention is not limited to above-mentioned detailed description of the invention; when reaching the middle and high effect filtering requirement of air as needed it because of filtering requirement; its by adjust electrostatic fabric graticule spacing, quantity and increase multiple parts composition come; the change of all arrangements, position, shape and structure all can change as required; as long as and the change that function is identical, all fall into protection scope of the present invention.The present invention can design other embodiments according to described technical scheme in conjunction with concrete applicable cases.
Claims (6)
1. an electret polypropylene thermoplastic bar electrostatic precipitation filter, comprise: a framework, and the metal grill protective layer be arranged in order in framework, latticed both positive and negative polarity polypropylene thermoplastic rod electrostatic generator, with the polyurethane foam layer being provided with perforate of negative pole electrostatic property, latticed both positive and negative polarity polypropylene thermoplastic rod electrostatic generator, metal grill protective layer, described latticed both positive and negative polarity polypropylene thermoplastic rod electrostatic generator comprises latticed positive pole polypropylene electrostatic and amasss nitride layer and latticed negative pole polypropylene electrostatic amasss nitride layer, it is characterized in that, described just latticed, what negative pole polypropylene electrostatic amassed that nitride layer interweaves by longitude and latitude just has stationed, the polypropylene thermoplastic bar construction of negative electrode, wherein, the polypropylene thermoplastic rod multiply electret capacitance polypropylene thermoplastic bar construction of warp direction, the polypropylene thermoplastic torch of weft direction is then formed with sub-thread electret capacitance polypropylene thermoplastic torch.
2. electret polypropylene thermoplastic bar electrostatic precipitation filter according to claim 1, is characterized in that, the sub-thread diameter of described electret capacitance polypropylene thermoplastic rod is 0.2mm.
3. electret polypropylene thermoplastic bar electrostatic precipitation filter according to claim 1, it is characterized in that, the excellent sub-thread thermoplastic torch by more than 3 strands of thermoplastic of described warp direction is formed side by side, and with distance within 10mm separately, weft direction is then formed with sub-thread sub-thread thermoplastic torch, and to be not more than 0.2mm distance separately.
4. electret polypropylene thermoplastic bar electrostatic precipitation filter according to claim 1, is characterized in that, the thickness of described polyurethane foam layer is 15mm-20mm.
5. electret polypropylene thermoplastic bar electrostatic precipitation filter according to claim 1, is characterized in that, the diameter of the metal wire of described metal grill protective layer is 0.8-1mm.
6. electret polypropylene thermoplastic bar electrostatic precipitation filter according to claim 5, is characterized in that, is spaced apart 15mm between described metal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110417353.8A CN102489404B (en) | 2011-12-13 | 2011-12-13 | Electret polypropylene thermoplastic bar electrostatic precipitation filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110417353.8A CN102489404B (en) | 2011-12-13 | 2011-12-13 | Electret polypropylene thermoplastic bar electrostatic precipitation filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102489404A CN102489404A (en) | 2012-06-13 |
| CN102489404B true CN102489404B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110417353.8A Expired - Fee Related CN102489404B (en) | 2011-12-13 | 2011-12-13 | Electret polypropylene thermoplastic bar electrostatic precipitation filter |
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| CN (1) | CN102489404B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801454A (en) * | 2014-02-18 | 2014-05-21 | 诸葛小春 | Air purifier |
| CN105665135B (en) * | 2014-11-18 | 2019-01-08 | 华为技术有限公司 | Dust-extraction unit |
| US10168059B2 (en) * | 2015-09-11 | 2019-01-01 | Panasonic Intellectual Property Management Co., Ltd. | Filtering medium and air purifier |
| CN105690844B (en) * | 2016-02-04 | 2018-04-10 | 白雪 | One kind combination filter screen |
| CN106839293A (en) * | 2017-01-20 | 2017-06-13 | 冯耀忠 | A kind of brand-new energy-saving intelligentized sterilizing and purifying air system |
| CN108722670A (en) * | 2017-04-14 | 2018-11-02 | 浙江菲达环保科技股份有限公司 | A kind of screening electric precipitator |
| CN107626450A (en) * | 2017-10-19 | 2018-01-26 | 宁波科美环境科技有限公司 | A kind of electrostatic filter of air cleaning facility |
| EP4157483A4 (en) | 2020-05-27 | 2023-11-29 | Shaarabany, Effy | An improved mechanical electrostatic filter assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188879A (en) * | 1996-11-11 | 1998-07-29 | 三洋电机株式会社 | Air-conditioning device |
| CN101365542A (en) * | 2005-12-29 | 2009-02-11 | 环境管理联合公司 | Improved filter media for active field polarized media air cleaner |
| CN101905101A (en) * | 2010-07-30 | 2010-12-08 | 杭州电子科技大学 | Method for preparing melt-blown polypropylene electret filter material |
| CN202427553U (en) * | 2011-12-13 | 2012-09-12 | 冯耀忠 | Electret-type polypropylene thermoplastic rod electrostatic cleaning filter |
-
2011
- 2011-12-13 CN CN201110417353.8A patent/CN102489404B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188879A (en) * | 1996-11-11 | 1998-07-29 | 三洋电机株式会社 | Air-conditioning device |
| CN101365542A (en) * | 2005-12-29 | 2009-02-11 | 环境管理联合公司 | Improved filter media for active field polarized media air cleaner |
| CN101905101A (en) * | 2010-07-30 | 2010-12-08 | 杭州电子科技大学 | Method for preparing melt-blown polypropylene electret filter material |
| CN202427553U (en) * | 2011-12-13 | 2012-09-12 | 冯耀忠 | Electret-type polypropylene thermoplastic rod electrostatic cleaning filter |
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| CN102489404A (en) | 2012-06-13 |
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Effective date of registration: 20170803 Address after: Huadu District, Guangdong city of Guangzhou Province, 510000 Flower Town No. 34 North East Valley 101 Patentee after: Guangxi Qihong Environment Science and Technology Co., Ltd. Address before: 2201 room 16, building A10, No. two, 510663 street, Haizhuqu District, Guangdong, Guangzhou Patentee before: Feng Yaozhong |
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Granted publication date: 20150114 Termination date: 20201213 |
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