CN204663358U - A kind of efficient anti-micronic dust window screening capable of releasing negative ion - Google Patents
A kind of efficient anti-micronic dust window screening capable of releasing negative ion Download PDFInfo
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- CN204663358U CN204663358U CN201520052878.XU CN201520052878U CN204663358U CN 204663358 U CN204663358 U CN 204663358U CN 201520052878 U CN201520052878 U CN 201520052878U CN 204663358 U CN204663358 U CN 204663358U
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- negative ion
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Abstract
A kind of efficient anti-micronic dust window screening capable of releasing negative ion, window screening adheres to anion function rete, anion function rete is by negative ion powder and the rete capable of releasing negative ion having the macromolecular material of adhesive function to spray to be formed, this function with regard to making window screening possess anion releasing while filter dust, the content of anion in the air by window screening can be increased, improve the quality entering indoor air, reduce outside atmosphere and pollute the adverse effect brought work and the life of people indoor, defendance people's is healthy.In addition, special coalescence effect is had to micronic dust based on anion, because dust is with positive charge, so it can sedimentation be the oarse-grained particle that window screening filtration beds is more easily tackled that the anion in air can make these micronic dust coalescences become, the intercepting efficiency of window screening filtration beds to micronic dust can be improved.
Description
Technical field
The utility model belongs to the building materials technology field with specific function, relates to a kind of window screening, particularly a kind of efficient anti-micronic dust window screening capable of releasing negative ion.
Background technology
, ecological environment fast-developing at current modern industry constantly worsens, for the at full speed increase of power source to the heavy dependence of coal, oil and automobile pollution, the pollution of air is also more and more serious, haze weather has almost become normalization, defines huge threat already to the health of the mankind.The quality of air quality generally depends on two leading indicators, i.e. the concentration of anion in the concentration of pollutants in air and air, and wherein pollutant levels are higher, the lower then air quality of negative ion concentration is poorer; Otherwise pollutant levels are lower and negative ion concentration is higher, air quality is better.Pollutant in air comprises the dust such as flue dust, overall suspended pellet, fine particle (PM10), pellet (PM2.5), and the harmful components such as nitrogen dioxide, carbon dioxide, carbon monoxide, ozone, VOC, air pollution index API, AQI etc. are the evaluations to pollutant in air.
According to the design of current routine building, window is the principal functional structure of indoor natural ventilating, when window ventilate window screening become unique must through barrier, for improving IAQ (indoor air quality), resist the outdoor atmosphere pollution be on the rise, also in succession there is the design of some strengthening window screening functions, be called that the Chinese patent of static dust-proof window screen relates to the air quality be hoisted through by intensive filtration as the patent No. is 200520106751.8; The patent No. is 200520010876.0 and is called that the Chinese patent of light catalyst screen window relates to and removes the harmful organic gas of a part by composite photo catalyst, and the Core Feature of these technology is exactly reduce the pollutant levels in air.But evaluation air quality also has the anion concentration in a prior index and air.According to the theory that geodesy and air joint committee of geographic physical League of Nations adopt, the molecular formula of negative aeroion is O
2-(H
2o) n, or OH-(H
2o) n, briefly refers to electronegative oxonium ion, colorless and odorless.Negative aeroion has effect of sterilization, depositing dust, clean air, raising immunity, regulative mechanism balance, thus " air vitamin " (bibliography: Ni Jun is described as, Xu Qiong, Shi Dengrong, Deng, urban green space negative aeroion research: for park, Shanghai [J]. urban forestry, 2004,2 (3): 30-33.).In air, negative ion concentration is higher, and air is more clean, feels more comfortable; Negative aeroion content is few, and negative ion concentrations ratio is large, air poorer (bibliography: Huang Yanliu, Chen Donghui, Lu Dan, etc., negative aeroion and urban environment drought environment are monitored, 2004,4 (18): 208-211.).The existence in the township of Bama of Guangxi world longevity allows the beneficial effect of anion to human body obtain preferably to be proved, research finds, why high population rate at the age of one hundred years old in Bama area is, and a very important reason is exactly that local negative ion concentration is high, can reach 30,000/cm
3.Bar horse, almost can not find diabetes, hypertension even cancer patient, most of old man dies without known cause.Thus, in environmental evaluation, air-anion concentration is listed in the important parameter (bibliography: Shao Hairong weighing air quality quality, Du Jianjun, Dan Hongchen, etc., with air-anion concentration, preliminary assessment [J] is carried out to Beijing area air cleanliness. Beijing Forestry University's journal: natural science edition, 2005,27 (4): 56-59.).
Japanese scholars peace is doubly by the research to life of urban resident district air ion, set up peace times air ion evaluation number (bibliography: Yu Zhuan. utilize distinct Chinese characteristics zero energy consumption of the renewable energy resource build: Central China University of Science and Technology's teaching building improvement project [J]. build journal, 2010 (S1): 124-126.) CI=(n
-/ 1000) x (l/q), q=n
+/ n
-, wherein, CI is Air Quality Evaluation index, n
+for cation concentration (cm in air
-3), n
-for negative ion concentration (cm in air
-3), q is single-stage coefficient, and 1000 for meeting the air-anion concentration (cm of Human biology effect Minimum requirements
-3).Air Quality Evaluation index as index, considers again the constituent ratio of negative ions using negative aeroion simultaneously, comparatively comprehensively with objective, therefore, be widely used in city air quality assessment abroad (bibliography: Qin Yuqiao, Liu Xuefeng, Liang Huining, etc.Negative aeroion is to the observation [J] of waiter's neurobehavioral and physical effects. environment and health magazine, 1993,10 (3): 114-116.).
Show according to research, when anion at least reaches more than 400 ~ 1000 in air, be just of value to health, but detect through multiple repairing weld, multilayer residential community, city anion number 158/cm
3, high level is lower, is only 139/cm
3(bibliography: Wang Wei, Yu Zhuan, Ji Fengquan. the urban air cleannes based on air-anion concentration evaluate [J]. ecological environment journal, 2013,22 (2): 298-303.), and indoor are lower.
Following table is the corresponding effect table of negative ion concentration that Taiwan University of Science and Technology professor Ye Zhengtao compiles, Biao Zhong negative ion concentration unit: cm
-3.
In addition, the floating dust in the particle in air usually below 10 μm is the suspension micronic dust that can float for a long time in an atmosphere, and they can be taken directly respiratory tract usually, and cause the harm to human body.State Environmental Protection Administration promulgates in " ambient air quality (GB3095-1996) " of revision and floating dust is renamed as pellet (PM10) for 1996, and formal as standard for atmosphere environment quality.And more tiny PM2.5 (also referred to as entering lung particle), because it directly can enter bronchus after being inhaled into human body, the gas exchanges of interference lung, cause the disease comprising the aspects such as asthma, bronchitis and cardiovascular disease, more receive much attention, and according to the monitored data on domestic many ground, if with PM2.5 as the standard weighing air quality, that city of 80% will be defective.For dedusting window screening, because of PM2.5 and less micronic dust particle diameter small, removing difficulty when filtering, carrying out the decline of tackling and can bring window screening air penetrability by the aperture reducing filter medium, existing do not have realize reaching air penetrability and the two high product of micronic dust interception rate in the art simultaneously yet.And negative aeroion has special effect to micronic dust, because dust is with positive charge, anion in air can make these micronic dust coalescences become can the oarse-grained particle of sedimentation, if window screening has possessed the function of anion releasing, then the anion of its release is to the coalescence effect of the micronic dust in air, little micronic dust can be become large micronic dust, the intercepting efficiency of window screening filter medium to micronic dust can be improved, while imparting window screening height air penetrability, realize efficient micronic dust interception result.
So in order to improve IAQ (indoor air quality), except the strainability improving screen window makes it retain a part of dust, or eliminate outside a part of organic exhaust gas by photocatalyst, supplementary anion is more indispensable.And in current prior art, not yet have the window screening having simultaneously and increase anion and efficiently can reduce pollutant function.
Summary of the invention
The utility model is in order to overcome the defect of prior art, devise a kind of efficient anti-micronic dust window screening capable of releasing negative ion, this window screening possesses the function of anion releasing, window in natural ventilation process at building, the anion of window screening release can produce coalescence effect to the micronic dust in air, little micronic dust can be become large micronic dust, the intercepting efficiency of window screening filtration beds to micronic dust can be improved, while imparting window screening height air penetrability, realize efficient micronic dust interception result.
The concrete technical scheme that the utility model is taked is: a kind of efficient anti-micronic dust window screening capable of releasing negative ion, comprise supporting layer, key is: described window screening also comprises anion function rete, anion function rete is arranged on the surface support layer of window screening, and anion function rete is by negative ion powder and the rete capable of releasing negative ion having the macromolecular material of adhesive function to spray to be formed.
Described window screening also comprises single filter layer, and the lower surface of single filter layer is fixedly connected with the upper surface of supporting layer, and anion function rete is arranged on single filter layer.
Described window screening also comprises cascade filtration layer, the lower surface of cascade filtration layer is fixedly connected with the upper surface of single filter layer, anion function rete is arranged on the upper surface of cascade filtration layer, the thickness of anion function rete is 5 ~ 100 μm, negative ion powder is the nano powder of the natural mineral matter possessing negative ion-releasing function, the particle diameter of negative ion powder is 10 ~ 300nm, have the macromolecular material of adhesive function to be any one in silicone adhesive agent, adhesive for polyurethane or acrylic acid adhesive, particle diameter is 20 ~ 1000nm.
Described supporting layer is the net structure be compiled into by any one filament in stainless steel, nylon, glass fiber, polyethylene or polyester material, and the diameter of filament is 0.02 ~ 0.1mm, and cancellated aperture is 10 ~ 100 orders.
Described single filter layer is the hot-melt adhesive film formed in support layer surface by PUR fiber, and the thickness of single filter layer is 5 ~ 20 μm, and the aperture of single filter layer is 10 ~ 50 μm.
The thickness of described cascade filtration layer is 5 ~ 20 μm, to be the aperture of being made up of high polymer polypropylene PP material the be penetrating microporous barrier of 2 ~ 20 μm, or the aperture of being made up of hydrophobic polymer film polytetrafluoroethylene PTFE or Kynoar PVDF is the microporous barrier of 0.01 ~ 5 μm.
The beneficial effects of the utility model are: on window screening, adhere to anion function rete, anion function rete is by negative ion powder and the rete capable of releasing negative ion having the macromolecular material of adhesive function to spray to be formed, composition in these negative ion powders has pyroelectricity and piezoelectricity, therefore when temperature and pressure changes, even if the change that similar air flowing etc. are small, also the electrical potential difference between composition crystal can be caused, this electrostatic can up to 1,000,000 electron-volts, thus air is ionized, the water closed on by the electron attachment hit and oxygen molecule also make it be converted into negative aeroion, this function with regard to making window screening possess anion releasing while filter dust, the content of anion in the air by window screening can be increased, improve the quality entering indoor air, reduce outside atmosphere and pollute the adverse effect that work and the life of people indoor are brought, defendance people's is healthy.
In addition, special coalescence effect is had to micronic dust based on anion, because dust is with positive charge, so it can sedimentation be the oarse-grained particle that window screening filtration beds is more easily tackled that the anion in air can make these micronic dust coalescences become, the intercepting efficiency of window screening filtration beds to micronic dust can be improved.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In accompanying drawing, 1 represents supporting layer, and 2 represent single filter layer, and 3 represent cascade filtration layer, and 4 represent anion function rete.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1, a kind of efficient anti-micronic dust window screening capable of releasing negative ion, supporting layer 1 is the net structure be compiled into by any one filament in stainless steel, nylon, glass fiber, polyethylene or polyester material, because glass fiber material fireproof performance is good, corrosion resistance is good, mechanical strength is high, so preferred glass fibers material when making supporting layer 1, the diameter of filament is 0.02 ~ 0.1mm, and cancellated aperture is 10 ~ 100 orders.Single filter layer 2 is the hot-melt adhesive films formed on supporting layer 1 surface by PUR fiber, the thickness of single filter layer 2 is 5 ~ 20 μm, the aperture of single filter layer 2 is 10 ~ 50 μm, single filter layer 2 both used as filtration beds, simultaneously also as the adhesive layer of supporting layer 1 and cascade filtration layer 3, the filtering accuracy of single filter layer 2 is realized by the filametntary quantity for spray of adjustment PUR according to demand.Cascade filtration layer 3 to be the apertures of being made up of high polymer polypropylene PP material the be penetrating microporous barrier of 2 ~ 20 μm, the thickness of cascade filtration layer 3 is 5 ~ 20 μm; Or, cascade filtration layer 3 to be the apertures of being made up of hydrophobic polymer film polytetrafluoroethylene PTFE or Kynoar PVDF the be microporous barrier of 0.01 ~ 5 μm, the thickness of cascade filtration layer 3 is 5 ~ 20 μm, and wherein the filtering accuracy of the latter is higher, and filter effect is better.
Set up anion function rete 4, anion function rete 4 is by negative ion powder and the rete capable of releasing negative ion having the macromolecular material of adhesive function to spray to be formed.The thickness of anion function rete 4 is 5 ~ 100 μm, negative ion powder is the nano powder of the natural mineral matter possessing negative ion-releasing function, the particle diameter of negative ion powder is 10 ~ 300nm, have the macromolecular material of adhesive function to be any one in silicone adhesive agent, adhesive for polyurethane or acrylic acid adhesive, particle diameter is 20 ~ 1000nm.
A preparation method for efficient anti-micronic dust window screening capable of releasing negative ion, comprises the following steps:
A, making supporting layer: utilize the filament of stainless steel, nylon, glass fiber, polyethylene or polyester material to be compiled into cancellated supporting layer 1 for subsequent use;
B, spraying anion function rete: utilize automatic reciprocating sprayer coating thickness on the surface support layer 1 of window screening to be the anion function rete 4 of 5 ~ 100 μm.
Described method also comprises:
A1, make single filter layer: PUR selects TPUE rubber TPU, polyethersulfone resin PES, polyamide PA, or any one in ethylene-vinyl acetate copolymer EVA, utilize PUR fibre spray machine by the ejection of the PUR of molten condition threadiness high pressure, supporting layer 1 is formed single filter layer 2, wherein, the melt temperature of fiber is 160 ~ 200 DEG C, auxiliary air temperature is normal temperature 25 DEG C, air pressure is 0.3 ~ 0.6MPa, receiving range is 2 ~ 20cm, the flow of PUR is 50 ~ 500ml/min, , step B now sprays anion function rete 4 on single filter layer 2.
Described method also comprises:
A2, making cascade filtration layer: on single filter layer 2, make cascade filtration layer 3;
A3, hot-forming: to utilize hot press by supporting layer 1, single filter layer 2, cascade filtration layer 3 in the environment of 160 ~ 200 DEG C, utilize the pressure compacting 1 ~ 5min of 0.1 ~ 1MPa, hot pressing is fixed together, and step B now sprays anion function rete 4 on cascade filtration layer 3.
Steps A 2 adopts high polymer polypropylene PP material melt-blown process to make the penetrating microporous barrier that aperture is 2 ~ 20 μm, wherein, the melt temperature of high polymer polypropylene PP is 280 ~ 320 DEG C, hot air temperature is 200 ~ 300 DEG C, air pressure is 0.6 ~ 1.0MPa, receiving range is 15 ~ 25cm, and the flow of high polymer polypropylene PP is 200 ~ 1000ml/min; Or steps A 2 prepares through chemical etching process the microporous barrier that aperture is 0.01 ~ 5 μm with hydrophobic polymer film polytetrafluoroethylene PTFE or Kynoar PVDF again after accelerator heavy ion beam current irradiation.
Embodiment 1, supporting layer 1 select string diameter to be 0.02mm, 80 object glass fiber silk screens, at supporting layer 1 upper surface spraying to take tourmaline powder as thickness that main material adds adhesive for polyurethane the be anion function rete 4 of 50 μm, this window screening gentlier, thinner, in the good environment of air quality.
The window screening made of the present embodiment is replaced the original window screening of building and is carried out experiment of ventilating of windowing for 1 hour, and data are as follows:
Before carrying out windowing for 1 hour before replacing window screening and ventilating, outdoor PM2.5 concentration is 120 μ g/m
3, PM10 concentration is 308 μ g/m
3, negative ion concentration is 256/cm
3; Within 1 hour, window after ventilating, indoor PM2.5 concentration is 110 μ g/m
3, PM10 concentration is 280 μ g/m
3, negative ion concentration is 238/cm
3;
The window screening using the present embodiment instead substitutes former window screening, and after ventilation of windowing in 1 hour, indoor PM2.5 concentration is down to 80 μ g/m
3, PM10 concentration is down to 60 μ g/m
3, negative ion concentration rises to 860/cm
3.
Embodiment 2, supporting layer 1 select string diameter to be 0.05mm, 30 object 304 stainless steel cloths, and spraying single square meter grammes per square metre in supporting layer 1 upper surface is 15g/m
2, aperture be the polyethersulfone resin retardation PES hot melt adhesive nethike embrane of 10 μm as single filter layer 2, at single filter layer 2 upper surface spraying to take tourmaline powder as thickness that main material adds adhesive for polyurethane the be anion function rete 4 of 20 μm.
The window screening made of the present embodiment is replaced the original window screening of building and is carried out experiment of ventilating of windowing for 1 hour, and data are as follows:
Before carrying out windowing for 1 hour before replacing window screening and ventilating, outdoor PM2.5 concentration is 368 μ g/m
3, negative ion concentration is 156/cm
3; Within 1 hour, window after ventilating, indoor PM2.5 concentration is 333 μ g/m
3, negative ion concentration is 121/cm
3;
The window screening using the present embodiment instead substitutes former window screening, and after ventilation of windowing in 1 hour, indoor PM2.5 concentration is down to 150 μ g/m
3, negative ion concentration rises to 790/cm
3.
Embodiment 3, supporting layer 1 select string diameter to be 0.05mm, 30 object polythene PE silk screens, and spraying single square meter grammes per square metre in supporting layer 1 upper surface is 9g/m
2, aperture is that the polyethersulfone resin retardation PES hot melt adhesive nethike embrane of 20 μm is as single filter layer 2, then on single filter layer 2, adopting melt-blown process to prepare aperture with high polymer polypropylene PP material is that the microporous barrier of 2 μm is as cascade filtration layer 3, supporting layer 1, single filter layer 2, cascade filtration layer 3 hot pressing on hot press are integrated, afterwards at cascade filtration layer 3 upper surface spraying to take tourmaline powder as thickness that main material adds adhesive for polyurethane the be anion function rete 4 of 10 μm.
The window screening made of the present embodiment is replaced the original window screening of building and is carried out experiment of ventilating of windowing for 1 hour, and data are as follows:
Before carrying out windowing for 1 hour before replacing window screening and ventilating, outdoor PM2.5 concentration is 368 μ g/m
3, negative ion concentration is 156/cm
3; Within 1 hour, window after ventilating, indoor PM2.5 concentration is 333 μ g/m
3, negative ion concentration is 121/cm
3;
The window screening using the present embodiment instead substitutes former window screening, and after ventilation of windowing in 1 hour, indoor PM2.5 concentration is down to 103 μ g/m
3, negative ion concentration rises to 685/cm
3.
Embodiment 4, supporting layer 1 select string diameter to be 0.06mm, 25 object 304 stainless steel cloths, and spraying single square meter grammes per square metre in supporting layer 1 upper surface is 18g/m
2, aperture is that the hot-melt adhesive film of 5 μm is as single filter layer 2, then on single filter layer 2, preparing aperture again with hydrophobic polymer film polytetrafluoroethylene PTFE after accelerator heavy ion beam current irradiation through chemical etching process is that the microporous barrier of 0.5 μm is as cascade filtration layer 3, supporting layer 1, single filter layer 2, cascade filtration layer 3 hot pressing on hot press are integrated, afterwards at cascade filtration layer 3 upper surface spraying to take tourmaline powder as thickness that main material adds adhesive for polyurethane the be anion function rete 4 of 15 μm.
The window screening made of the present embodiment is replaced the original window screening of building and is carried out experiment of ventilating of windowing for 1 hour, and data are as follows:
Before carrying out windowing for 1 hour before replacing window screening and ventilating, outdoor PM2.5 concentration is 368 μ g/m
3, negative ion concentration is 156/cm
3; Within 1 hour, window after ventilating, indoor PM2.5 concentration is 333 μ g/m
3, negative ion concentration is 121/cm
3;
The window screening using the present embodiment instead substitutes former window screening, and after ventilation of windowing in 1 hour, indoor PM2.5 concentration is down to 50 μ g/m
3, negative ion concentration rises to 780/cm
3.
In sum, window screening in the utility model has the function increasing anion and efficiently can reduce pollutant simultaneously, window in natural ventilation process at building, the anion of window screening release can produce coalescence effect to the micronic dust in air, little micronic dust can be become large micronic dust, the intercepting efficiency of window screening filtration beds to micronic dust can be improved, while imparting window screening height air penetrability, realize efficient micronic dust interception result.
Claims (5)
1. an efficient anti-micronic dust window screening capable of releasing negative ion, comprise supporting layer (1), it is characterized in that: described window screening also comprises anion function rete (4), anion function rete (4) is arranged on the surface support layer (1) of window screening, window screening also comprises single filter layer (2), the lower surface of single filter layer (2) is fixedly connected with the upper surface of supporting layer (1), and anion function rete (4) is arranged on single filter layer (2).
2. a kind of efficient anti-micronic dust window screening capable of releasing negative ion according to claim 1, it is characterized in that: described window screening also comprises cascade filtration layer (3), the lower surface of cascade filtration layer (3) is fixedly connected with the upper surface of single filter layer (2), anion function rete (4) is arranged on the upper surface of cascade filtration layer (3), and the thickness of anion function rete (4) is 5 ~ 100 μm.
3. a kind of efficient anti-micronic dust window screening capable of releasing negative ion according to claim 1, it is characterized in that: described supporting layer (1) is the net structure be compiled into by any one filament in stainless steel, nylon, glass fiber, polyethylene or polyester material, the diameter of filament is 0.02 ~ 0.1mm, and cancellated aperture is 10 ~ 100 orders.
4. a kind of efficient anti-micronic dust window screening capable of releasing negative ion according to claim 1, it is characterized in that: described single filter layer (2) is the hot-melt adhesive film formed on supporting layer (1) surface by PUR fiber, the thickness of single filter layer (2) is 5 ~ 20 μm, and the aperture of single filter layer (2) is 10 ~ 50 μm.
5. a kind of efficient anti-micronic dust window screening capable of releasing negative ion according to claim 2, it is characterized in that: the thickness of described cascade filtration layer (3) is 5 ~ 20 μm, to be the aperture of being made up of high polymer polypropylene PP material the be penetrating microporous barrier of 2 ~ 20 μm, or the aperture of being made up of hydrophobic polymer film polytetrafluoroethylene PTFE or Kynoar PVDF is the microporous barrier of 0.01 ~ 5 μm.
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612572A (en) * | 2015-01-26 | 2015-05-13 | 方存仁 | Efficient tiny-dust-proof window gauze capable of releasing negative ions and manufacturing method thereof |
| CN106884609A (en) * | 2017-02-23 | 2017-06-23 | 浙江理工大学 | High efficiency filter PM2.5 transparent nano window screenings of low pressure drop and preparation method thereof |
| CN109499184A (en) * | 2018-10-30 | 2019-03-22 | 浙江理工大学 | A kind of filtering material and preparation method thereof of releasable ecological anion |
-
2015
- 2015-01-26 CN CN201520052878.XU patent/CN204663358U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612572A (en) * | 2015-01-26 | 2015-05-13 | 方存仁 | Efficient tiny-dust-proof window gauze capable of releasing negative ions and manufacturing method thereof |
| CN104612572B (en) * | 2015-01-26 | 2016-06-01 | 方存仁 | A kind of efficient anti-micronic dust window screening capable of releasing negative ion and making method thereof |
| CN106884609A (en) * | 2017-02-23 | 2017-06-23 | 浙江理工大学 | High efficiency filter PM2.5 transparent nano window screenings of low pressure drop and preparation method thereof |
| CN109499184A (en) * | 2018-10-30 | 2019-03-22 | 浙江理工大学 | A kind of filtering material and preparation method thereof of releasable ecological anion |
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