CN201399313Y - An indoor air purification device - Google Patents

An indoor air purification device Download PDF

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CN201399313Y
CN201399313Y CN2009201718771U CN200920171877U CN201399313Y CN 201399313 Y CN201399313 Y CN 201399313Y CN 2009201718771 U CN2009201718771 U CN 2009201718771U CN 200920171877 U CN200920171877 U CN 200920171877U CN 201399313 Y CN201399313 Y CN 201399313Y
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activated carbon
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air purification
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张国栋
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Abstract

本实用新型公开了一种室内空气净化装置,属于空气净化技术领域。该装置由一层滤布,两层活性炭纤维毡,一层颗粒活性炭平铺层及紫外灯组成。活性炭纤维毡表面沉积具有光催化活性的TiO2,紫外灯置于两层活性炭纤维毡之间,空气由装置下部流入,空气中的有害物质经过滤、吸附和光催化分解后,由装置上部流出。本实用新型所提供的室内空气净化装置结构简单、操作方便、能持续高效地去除空气中的有害物质。

Figure 200920171877

The utility model discloses an indoor air purification device, which belongs to the technical field of air purification. The device consists of one layer of filter cloth, two layers of activated carbon fiber felt, one layer of granular activated carbon flat layer and ultraviolet lamp. TiO 2 with photocatalytic activity is deposited on the surface of the activated carbon fiber felt, and the ultraviolet lamp is placed between two layers of activated carbon fiber felt. The air flows in from the lower part of the device, and the harmful substances in the air flow out from the upper part of the device after being filtered, adsorbed and photocatalytically decomposed. The indoor air purification device provided by the utility model has simple structure, convenient operation, and can continuously and efficiently remove harmful substances in the air.

Figure 200920171877

Description

一种室内空气净化装置 An indoor air purification device

技术领域 technical field

本实用新型属于空气净化技术领域,具体涉及一种室内空气净化装置。The utility model belongs to the technical field of air purification, in particular to an indoor air purification device.

背景技术 Background technique

人们大部分时间是在室内度过的,室内空气质量对人的健康有着重要影响。由于房屋装修,电器使用及人的活动等原因,使室内空气污染物浓度远高于室外,室内空气净化越来越受到重视。传统的空气净化技术为纤维过滤和活性炭吸附。纤维过滤只能去除空气中的悬浮物及其所附着的细菌,不能去除空气中挥发性有机物,如甲醛、苯系物等。活性炭吸附可以除去有机物,但随着净化过程的进行,吸附逐渐趋于饱和而失去净化功能。新的技术如等离子体技术,臭氧技术等已用于空气净化,这两种技术均需复杂的设备,且臭氧本身以及等离子体在净化过程中产生某些中间体对人有害,因而难以在室内空气净化中推广应用。TiO2光催化用于空气净化是近年发展起来的新技术,具有设备简单、在常温常压下操作、无二次污染等优点,适用于室内空气净化处理,目前已有产品面市,但普遍存在有机物去除效率不高的缺点。People spend most of their time indoors, and indoor air quality has an important impact on people's health. Due to house decoration, use of electrical appliances, and human activities, the concentration of indoor air pollutants is much higher than outdoors, and indoor air purification has received more and more attention. Traditional air purification technologies are fiber filtration and activated carbon adsorption. Fiber filtration can only remove suspended solids in the air and the bacteria attached to them, but cannot remove volatile organic compounds in the air, such as formaldehyde and benzene series. Activated carbon adsorption can remove organic matter, but as the purification process progresses, the adsorption gradually becomes saturated and the purification function is lost. New technologies such as plasma technology and ozone technology have been used for air purification. Both of these technologies require complex equipment, and ozone itself and some intermediates produced by plasma in the purification process are harmful to humans, so it is difficult to clean them indoors. Popularize and apply in air purification. The use of TiO 2 photocatalysis for air purification is a new technology developed in recent years. It has the advantages of simple equipment, operation under normal temperature and pressure, and no secondary pollution. It is suitable for indoor air purification. Products are currently on the market, but they are widespread The disadvantage of low organic matter removal efficiency.

发明内容 Contents of the invention

为了克服现有技术的不足,本实用新型提供一种新的室内空气净化装置,旨在持续高效地净化空气中污染物。本实用新型通过下述技术方案予以实现:In order to overcome the deficiencies of the prior art, the utility model provides a new indoor air purification device, which aims to continuously and efficiently purify pollutants in the air. The utility model is realized through the following technical solutions:

该装置由一层滤布,两层活性炭纤维毡,一层颗粒活性炭平铺层以及紫外灯组成,所述滤布与空气进气处相连,其各组成按照以下方式顺序连接:滤布、活性炭纤维毡、紫外灯、活性炭纤维毡以及颗粒活性炭平铺层;空气活性炭纤维毡表面沉积具有光催化活性的TiO2,紫外灯置于两层活性炭纤维毡之间。The device consists of one layer of filter cloth, two layers of activated carbon fiber felt, one layer of granular activated carbon flat layer and an ultraviolet lamp. The filter cloth is connected to the air intake, and its components are connected in sequence in the following way: Fiber felt, ultraviolet lamp, activated carbon fiber felt and granular activated carbon flat layer; TiO 2 with photocatalytic activity is deposited on the surface of the air activated carbon fiber felt, and the ultraviolet lamp is placed between two layers of activated carbon fiber felt.

TiO2与活性炭纤维毡的质量比为0.01-0.10,两层活性炭纤维毡之间放置2-6支紫外灯,每支功率为4-20W,颗粒活性炭层厚度为1-3cm,进风口位于装置下部,出风口位于上部。The mass ratio of TiO 2 to activated carbon fiber felt is 0.01-0.10, 2-6 UV lamps are placed between the two layers of activated carbon fiber felt, each with a power of 4-20W, the thickness of the granular activated carbon layer is 1-3cm, and the air inlet is located in the device. In the lower part, the air outlet is located in the upper part.

与现有的产品相比,本实用新型提供的室内空气净化装置的优点表现在:Compared with existing products, the advantages of the indoor air purification device provided by the utility model are as follows:

1、能够持续高效地清除空气中的微量有机物。活性炭纤维毡是新一代吸附材料,吸附速度和吸附容量比活性炭大得多,当空气通过活性炭纤维毡时,空气中微量有机物被快速吸附并加以富集,然后被TiO2表面的光生空穴氧化分解,活性炭纤维毡吸附性能得以恢复,空气净化过程可以持续高效进行。1. It can continuously and efficiently remove trace organic matter in the air. Activated carbon fiber felt is a new generation of adsorption material. The adsorption speed and adsorption capacity are much larger than activated carbon. When the air passes through the activated carbon fiber felt, the trace organic matter in the air is quickly adsorbed and enriched, and then oxidized by the photogenerated holes on the surface of TiO 2 Decomposed, the adsorption performance of activated carbon fiber felt is restored, and the air purification process can be continuously and efficiently carried out.

2、能够彻底分解空气中的有害物质而不会产生新的污染。空气中细菌等有害微生物不仅能被紫外线杀死,其尸体也能通过TiO2光催化作用而分解。空气中的有机物能被TiO2表面的光生空穴分解为对人体无害的水、二氧化碳及其它无机物。活性炭纤维毡由于受到TiO2膜的保护,在净化过程中不会粉碎而被空气带出。2. It can completely decompose harmful substances in the air without generating new pollution. Harmful microorganisms such as bacteria in the air can not only be killed by ultraviolet rays, but their corpses can also be decomposed by TiO2 photocatalysis. The organic substances in the air can be decomposed into water, carbon dioxide and other inorganic substances harmless to the human body by the photogenerated holes on the surface of TiO 2 . Because the activated carbon fiber felt is protected by the TiO2 film, it will not be crushed and taken out by the air during the purification process.

3、空气中的氧气在紫外线的作用下会产生少量臭氧,如果来不及和空气中的有机物反应而消耗,装置上部所设置的颗粒活性炭层可以将其吸附并使其分解为氧气,避免绐净化后的空气带来新的污染。3. Oxygen in the air will produce a small amount of ozone under the action of ultraviolet rays. If it is too late to react with organic matter in the air and consume it, the granular activated carbon layer set on the upper part of the device can absorb it and decompose it into oxygen, avoiding after purification. The air brings new pollution.

附图说明 Description of drawings

图为室内空气净化装置示意图。The figure is a schematic diagram of an indoor air purification device.

图中:1:滤布;2:活性炭纤维毡;3:紫外灯;4:活性炭纤维毡;5:颗粒活性炭层。In the figure: 1: filter cloth; 2: activated carbon fiber felt; 3: ultraviolet lamp; 4: activated carbon fiber felt; 5: granular activated carbon layer.

具体实施方式 Detailed ways

本实用新型所提供的室内空气净化装置如图1所示。装置由滤布1,活性炭纤维毡2、4,紫外灯3,颗粒活性炭层5构成。活性炭纤维毡2、4表面沉积具有光催化性能的TiO2,TiO2与活性炭纤维毡质量之比为0.01-0.10。紫外灯置于活性炭纤维毡2、4之间,紫外灯额定波长为254nm,功率为4-30W,数目为2-6支。颗粒活性炭层厚度为1-3cm。空气由装置下部进入,经滤布粗滤除去空气中悬浮物后流经活性纤维毡2,空气中有机物被吸附并扩散至靠近紫外灯的表面,被TiO2表面的光生空穴氧化分解,剩余有机物在活性炭纤维毡4上被继续吸附并被4表面的TiO2光催化分解。空气中细菌、病毒等除被紫外线直接照射而杀死外,其尸体还能在TiO2表面被光催化作用而分解。空气中氧气在本装置所用紫外灯的照射下能产生少量臭氧,臭氧可与空气中有机物反应而消耗,如果来不及和有机物反应而留在净化后的空气中,则对人体有害。由于本装置设置了颗粒活性炭层5,空气流经5时其中所含臭氧被活性炭吸附并被分解为氧气。The indoor air purification device provided by the utility model is shown in Fig. 1 . The device is composed of a filter cloth 1, activated carbon fiber felts 2 and 4, an ultraviolet lamp 3, and a granular activated carbon layer 5. TiO 2 with photocatalytic performance is deposited on the surface of activated carbon fiber felts 2 and 4 , and the mass ratio of TiO 2 to activated carbon fiber felts is 0.01-0.10. The ultraviolet lamp is placed between the active carbon fiber felts 2 and 4, the rated wavelength of the ultraviolet lamp is 254nm, the power is 4-30W, and the number is 2-6. The thickness of the granular activated carbon layer is 1-3cm. The air enters from the lower part of the device, is coarsely filtered through the filter cloth to remove suspended matter in the air, and then flows through the active fiber felt 2. The organic matter in the air is absorbed and diffused to the surface near the ultraviolet lamp, and is oxidized and decomposed by the photogenerated holes on the surface of TiO 2 . The organic matter is continuously adsorbed on the activated carbon fiber felt 4 and decomposed photocatalytically by the TiO 2 on the surface of the 4 . In addition to killing bacteria and viruses in the air by direct ultraviolet radiation, their corpses can also be decomposed by photocatalysis on the surface of TiO 2 . Oxygen in the air can produce a small amount of ozone under the irradiation of the ultraviolet lamp used in this device. Ozone can react with organic matter in the air and be consumed. If it is left in the purified air without reacting with organic matter in time, it will be harmful to the human body. Since the device is provided with a granular activated carbon layer 5, the ozone contained therein is absorbed by the activated carbon and decomposed into oxygen when the air flows through the layer 5.

为了评价空气净化效果,将净化后的空气和未经净化的空气分别流经吸收装置,用蒸馏水吸收空气中的甲醛,氨和细菌。采用分光光度法测量甲醛和氨的浓度;采用细菌培养法测量细菌数;以气相色谱法测量空气中苯含量。控制空气流量为10立方米/小时,使用4支8W紫外灯,TiO2和活性炭纤维毡的质量比为0.05,颗粒活性炭层厚度为2cm,净化后的空气和未净化空气相比,细菌数下降95%,甲醛下率99%,氨下降98%,苯下降96%。In order to evaluate the air purification effect, the purified air and unpurified air flow through the absorption device respectively, and distilled water is used to absorb formaldehyde, ammonia and bacteria in the air. The concentration of formaldehyde and ammonia is measured by spectrophotometry; the number of bacteria is measured by bacterial culture method; the benzene content in the air is measured by gas chromatography. Control the air flow rate to 10 cubic meters per hour, use 4 8W UV lamps, the mass ratio of TiO 2 and activated carbon fiber felt is 0.05, and the thickness of the granular activated carbon layer is 2cm. Compared with the unpurified air, the number of bacteria in the purified air decreases. 95%, formaldehyde reduction rate 99%, ammonia reduction 98%, benzene reduction 96%.

Claims (1)

1, a kind of indoor air-purification device, it is characterized in that: this device is made up of one deck filter cloth, two-layer NACF felt, one deck granular activated carbon tiling layer and uviol lamp, described filter cloth links to each other with the air inlet place, and its each composition is linked in sequence in such a way: filter cloth, NACF felt, uviol lamp, NACF felt and granular activated carbon tiling layer; Air NACF felt surface deposition has the TiO of photocatalytic activity 2, uviol lamp places between the two-layer NACF felt.
CN2009201718771U 2009-04-21 2009-04-21 An indoor air purification device Expired - Fee Related CN201399313Y (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797396A (en) * 2010-04-30 2010-08-11 上海绿伞环保科技发展有限公司 Functional active carbon odor absorber
CN102423631A (en) * 2011-08-28 2012-04-25 常州浩瀚新材料科技有限公司 Technology and device for treating toxic and harmful organic waste gas
CN103990349A (en) * 2013-02-18 2014-08-20 侯梦斌 Active-carbon fiber-felt-cloth mobile-curtain type filtering equipment and technology
WO2017192057A1 (en) 2016-05-05 2017-11-09 Phu Dytrych Sp. Z O. O. Modified porous coatings and a modular device for air treatment containing modified porous coatings.
CN109012160A (en) * 2018-08-24 2018-12-18 中国石油天然气股份有限公司 Device and method for treating volatile organic compounds in oilfield chamber and application of device and method
CN111420521A (en) * 2020-04-26 2020-07-17 上海中澄环保工程科技有限公司 Sewage pump station peculiar smell circulation emission reduction and clean emission system and process
WO2021224358A1 (en) 2020-05-05 2021-11-11 Witkowski Hubert A filter and a method for manufacturing thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797396A (en) * 2010-04-30 2010-08-11 上海绿伞环保科技发展有限公司 Functional active carbon odor absorber
CN102423631A (en) * 2011-08-28 2012-04-25 常州浩瀚新材料科技有限公司 Technology and device for treating toxic and harmful organic waste gas
CN103990349A (en) * 2013-02-18 2014-08-20 侯梦斌 Active-carbon fiber-felt-cloth mobile-curtain type filtering equipment and technology
CN103990349B (en) * 2013-02-18 2016-05-25 侯梦斌 The moving curtain formula filter plant of a kind of NACF felt-cloth and technique
WO2017192057A1 (en) 2016-05-05 2017-11-09 Phu Dytrych Sp. Z O. O. Modified porous coatings and a modular device for air treatment containing modified porous coatings.
CN109012160A (en) * 2018-08-24 2018-12-18 中国石油天然气股份有限公司 Device and method for treating volatile organic compounds in oilfield chamber and application of device and method
CN111420521A (en) * 2020-04-26 2020-07-17 上海中澄环保工程科技有限公司 Sewage pump station peculiar smell circulation emission reduction and clean emission system and process
WO2021224358A1 (en) 2020-05-05 2021-11-11 Witkowski Hubert A filter and a method for manufacturing thereof

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