CN1594999A - Combined type air purification and sterilization device - Google Patents

Combined type air purification and sterilization device Download PDF

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CN1594999A
CN1594999A CNA2004100252085A CN200410025208A CN1594999A CN 1594999 A CN1594999 A CN 1594999A CN A2004100252085 A CNA2004100252085 A CN A2004100252085A CN 200410025208 A CN200410025208 A CN 200410025208A CN 1594999 A CN1594999 A CN 1594999A
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air
water
ozone
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water mist
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CN1252423C (en
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施建伟
上官文峰
刘震炎
张运乾
陈铭夏
袁坚
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Shanghai Jiao Tong University
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    • YGENERAL 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
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Abstract

一种组合式空气净化杀菌装置,用于环境净化领域。本发明包括:微粒捕集组件、臭氧-光催化组件、水雾喷淋-气水分离组件,按气流方向,微粒捕集组件设置在最前面,微粒捕集组件后面设置臭氧-光催化组件,臭氧-光催化组件后面设置水雾喷淋-气水分离组件,三个组件互为独立且平行,四周与风管紧密连接,所有气流依次穿过微粒捕集组件,臭氧-光催化组件和水雾喷淋-气水分离组件。本发明将水雾吸收技术与光催化和臭氧技术相结合,利用水雾将剩余的有机污染物和臭氧气体吸收,排出清洁气体。本发明杀灭细菌能力强、去除有机污染物效果好,特别适用于中央空调系统的室内空气净化,能有效地解决由于中央空调系统的使用引起传染病的交叉感染,也可用于室内空气加湿净化装置。

Figure 200410025208

A combined air purification and sterilization device is used in the field of environmental purification. The present invention includes: particulate trapping assembly, ozone-photocatalytic assembly, water mist spraying-air-water separation assembly, according to the airflow direction, the particulate trapping assembly is arranged at the front, and the ozone-photocatalytic assembly is arranged behind the particulate trapping assembly, The water mist spray-gas-water separation component is set behind the ozone-photocatalytic component. The three components are independent and parallel to each other, and are closely connected with the air duct around them. Mist Spray - Air-Water Separation Assembly. The invention combines water mist absorption technology with photocatalysis and ozone technology, uses water mist to absorb remaining organic pollutants and ozone gas, and discharges clean gas. The invention has strong ability to kill bacteria and good effect of removing organic pollutants, is especially suitable for indoor air purification of central air-conditioning system, can effectively solve the cross-infection of infectious diseases caused by the use of central air-conditioning system, and can also be used for indoor air humidification and purification device.

Figure 200410025208

Description

组合式空气净化杀菌装置Combined air purification and sterilization device

技术领域technical field

本发明涉及一种空气净化装置,具体是一种组合式空气净化杀菌装置。用于居室电器技术领域。The invention relates to an air purification device, in particular to a combined air purification and sterilization device. It is used in the technical field of living room electrical appliances.

背景技术Background technique

由于现代居住环境和室内装修等引起的城市建筑物综合症、室内空调病、有机污染等直接影响到人们的健康和生命安全。因中央空调系统不能经常性的清洗和消毒,其系统内部成为细菌滋生处而带来的环境污染,已日益引起人们的重视。特别是由于中央空调系统的使用引起传染病的交叉感染问题倍受关注。目前的空气净化器主要采用活性炭吸附技术、臭氧净化技术、负离子除尘技术和高压静电技术。活性炭吸附技术只能将有害物吸附储存,而不能将其分解或去除,只是将污染源转移。臭氧技术具有杀菌、除臭作用,但对有机污染物的去除效率低,且臭氧本身对人体和环境有害。负离子和高压静电技术是一种物理作用过程,能去除空气中的烟尘,但对化学、生物和微生物等造成的污染无法去除净化。Urban building syndrome, indoor air-conditioning disease, and organic pollution caused by modern living environment and interior decoration directly affect people's health and life safety. Because the central air-conditioning system cannot be cleaned and disinfected frequently, the environment pollution caused by the inside of the system becoming a breeding place for bacteria has increasingly attracted people's attention. Especially due to the use of the central air-conditioning system, the problem of cross-infection of infectious diseases has attracted much attention. Current air purifiers mainly use activated carbon adsorption technology, ozone purification technology, negative ion dust removal technology and high-voltage electrostatic technology. Activated carbon adsorption technology can only absorb and store harmful substances, but cannot decompose or remove them, but only transfer the pollution source. Ozone technology has the function of sterilization and deodorization, but the removal efficiency of organic pollutants is low, and ozone itself is harmful to human body and environment. Negative ion and high-voltage electrostatic technology is a physical process that can remove smoke and dust in the air, but it cannot remove and purify the pollution caused by chemicals, biology and microorganisms.

光催化是一种新兴的环境净化技术。纳米TiO2光催化剂可有效地氧化或还原吸附在其表面上的有害气体分子,杀灭细菌,抑制病毒,并能将有害有机物、细菌等转化为水和二氧化碳等无害物质,且没有任何二次污染。因此,近几年来成为应用于室内空气净化的研究热点。Photocatalysis is an emerging technology for environmental purification. Nano- TiO2 photocatalyst can effectively oxidize or reduce harmful gas molecules adsorbed on its surface, kill bacteria, inhibit viruses, and convert harmful organic matter, bacteria, etc. into harmless substances such as water and carbon dioxide, without any secondary secondary pollution. Therefore, it has become a research hotspot for indoor air purification in recent years.

经文献检索发现,发明专利名称为:一种室内空气的净化方法及装置,专利申请号为:03126563.4,该专利公布了一种活性炭过滤、紫外灯和纳米TiO2光催化相结合的空气净化手段。然而,由于中央空调气体流量大,光催化对空气的一次净化率往往较低,通过多次循环虽然可以达到使空气中污染物浓度达到室内空气质量标准,但不能有效解决由于中央空调系统的使用而引起的传染病交叉感染问题。同时,利用活性炭只能吸附而不能去除有害气体,最终将导致二次污染。另一方面,光催化所用的紫外光源可以产生臭氧,虽然臭氧具有杀菌消毒功能,而且能与光催化产生耦合作用,显著提高光催化的活性。但若控制不当,往往对环境产生污染,对人体健康产生危害。After literature search, it was found that the name of the invention patent is: a method and device for purifying indoor air, and the patent application number is: 03126563.4. This patent discloses an air purification method that combines activated carbon filtration, ultraviolet lamps and nano-TiO 2 photocatalysis . However, due to the large gas flow rate of central air-conditioning, the primary purification rate of photocatalysis to air is often low. Although the concentration of pollutants in the air can reach the indoor air quality standard through multiple cycles, it cannot effectively solve the problem of air pollution due to the use of central air-conditioning systems. The problem of cross-infection of infectious diseases caused. At the same time, the use of activated carbon can only absorb but not remove harmful gases, which will eventually lead to secondary pollution. On the other hand, the ultraviolet light source used in photocatalysis can generate ozone, although ozone has the function of sterilization and disinfection, and can be coupled with photocatalysis to significantly improve the activity of photocatalysis. However, if it is not properly controlled, it will often pollute the environment and cause harm to human health.

发明内容Contents of the invention

本发明的目的在于克服现有技术中的不足,提供一种具有高效去除室内空气有机污染物和杀菌的组合式空气净化杀菌装置,使其通过初效过滤网和高压静电捕集微粒和尘埃后,在臭氧-纳米光催化耦合作用下,能高效地降解有机污染物和杀菌,过量的臭氧和残留的有机污染物通过水雾吸收,从而能使污染物一次性通过去除率达到较高。经多重处理,安全可靠。The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a combined air purification and sterilization device with efficient removal of indoor air organic pollutants and sterilization, so that after the primary effect filter and high-voltage electrostatic capture particles and dust , under the coupling action of ozone-nano photocatalysis, it can efficiently degrade organic pollutants and sterilize bacteria, and excess ozone and residual organic pollutants can be absorbed by water mist, so that the removal rate of pollutants can be achieved in one pass. After multiple processing, it is safe and reliable.

本发明是通过以下技术方案来实现的,本发明包括:微粒捕集组件、臭氧-光催化组件、水雾喷淋-气水分离组件。其连接关系为:按气流方向,微粒捕集组件设置在最前面,微粒捕集组件后面设置臭氧-光催化组件,臭氧-光催化组件后面设置水雾喷淋-气水分离组件,三个组件互为独立且平行,四周与风管紧密连接,所有气流依次穿过微粒捕集组件,臭氧-光催化组件和水雾喷淋-气水分离组件。The present invention is realized through the following technical proposals, and the present invention includes: particle trapping assembly, ozone-photocatalytic assembly, water mist spraying-air-water separation assembly. The connection relationship is as follows: according to the airflow direction, the particle capture component is set at the front, the ozone-photocatalytic component is set behind the particle capture component, and the water mist spray-gas-water separation component is set behind the ozone-photocatalytic component. Three components They are independent and parallel to each other, and are closely connected with the air duct around them. All the airflows pass through the particle capture component, the ozone-photocatalytic component and the water mist spray-air-water separation component in sequence.

微粒捕集组件由初效过滤网和高压静电除尘部件组成。这两个部件相互平行,且平行面垂直于气流方向,平行面尺寸与管道内截面一致。The particle collection component is composed of a primary filter and a high-voltage electrostatic precipitator. These two components are parallel to each other, and the parallel plane is perpendicular to the airflow direction, and the size of the parallel plane is consistent with the internal section of the pipeline.

臭氧-光催化组件中包含有纳米光催化反应片和紫外灯光源。纳米光催化反应片可以是泡沫金属负载纳米光催化网,或是复合纳米光催化颗粒制成的过滤网,为降低气流垂直穿过网流速,该过滤网为波浪状为好。紫外灯光源是能产生一定臭氧的冷阴极紫外灯管或普通紫外灯管。复合纳米光催化颗粒制成的过滤网为两层以上,各层之间相互平行,且垂直于气流方向;紫外灯管位于复合纳米光催化颗粒制成的过滤网的每两层之间,且平行于该过滤网。The ozone-photocatalytic component contains a nano-photocatalytic reaction sheet and an ultraviolet light source. The nano-photocatalytic reaction sheet can be a nano-photocatalytic mesh supported by metal foam, or a filter made of composite nano-photocatalytic particles. In order to reduce the velocity of the airflow passing through the mesh vertically, the filter is preferably wave-shaped. The ultraviolet light source is a cold cathode ultraviolet lamp or an ordinary ultraviolet lamp that can generate a certain amount of ozone. The filter screen made of composite nano-photocatalytic particles has more than two layers, and the layers are parallel to each other and perpendicular to the airflow direction; the ultraviolet lamp is located between every two layers of the filter screen made of composite nano-photocatalytic particles, and parallel to the filter.

水雾喷淋-气水分离组件中设有喷嘴、水雾拦截网、拐形气水分离器、蓄水箱、调节阀、水泵或气泵和连接管道。喷嘴的前方依次是水雾拦截网和拐形气水分离器,蓄水箱位于水雾拦截网和拐形气水分离器的底部;蓄水箱、调节阀、水泵(或气泵)和喷嘴之间用连接管道连接。The water mist spraying-air-water separation assembly is provided with nozzles, water mist interception nets, curved air-water separators, water storage tanks, regulating valves, water pumps or air pumps and connecting pipes. In front of the nozzle are the water mist interception net and the curved air-water separator in turn, and the water storage tank is located at the bottom of the water mist interception net and the curved air-water separator; between the water storage tank, the regulating valve, the water pump (or air pump) and the nozzle Connected with connecting pipes.

当空气进入该系统后,经由初效过滤网和高压静电除尘部件,微小颗粒去除后进入臭氧-光催化组件。在臭氧的氧化作用、光催化降解作用、紫外灯照射以及三者的协同作用下,空气中的有机污染物和细菌等被氧化分解和杀灭。残留的臭氧气体和有机污染物在大量微小水雾作用下被吸收,同时水雾被水雾拦截网和拐形气水分离器拦截,最后排出的是清洁空气。When the air enters the system, it passes through the primary filter and the high-voltage electrostatic precipitator, and after the tiny particles are removed, it enters the ozone-photocatalytic component. Under the oxidation of ozone, photocatalytic degradation, ultraviolet lamp irradiation and the synergistic effect of the three, organic pollutants and bacteria in the air are oxidatively decomposed and killed. Residual ozone gas and organic pollutants are absorbed under the action of a large amount of tiny water mist, while the water mist is intercepted by the water mist interception net and the curved air-water separator, and finally the clean air is discharged.

本发明选择能产生臭氧的紫外(UV)灯管作为光催化的光源。这样有两方面的作用:第一,臭氧与UV的相互作用,第二,光催化(如TiO2)与臭氧的相互作用。通过以上的协同作用,产生大量具有高氧化能力的·OH,从而有效地去除有机污染物和杀灭细菌。可以简要地用下述化学反应方程来表示:The present invention selects an ultraviolet (UV) lamp tube capable of generating ozone as a light source for photocatalysis. This has two effects: first, the interaction between ozone and UV, and second, the interaction between photocatalysis (such as TiO 2 ) and ozone. Through the above synergistic effect, a large amount of OH with high oxidizing ability is produced, thereby effectively removing organic pollutants and killing bacteria. It can be briefly represented by the following chemical reaction equation:

        (1) (1)

            (2) (2)

         (3) (3)

     (4) (4)

    (5) (5)

               (6) (6)

              (7) (7)

           (8) (8)

           (9) (9)

式(9)中M代表空气中的有机物。TiO2在紫外光的照射下形成了电子-空穴对,由于臭氧具有很强的亲电性,结果使电子与空穴的复合机率降解,从而实现降解有机物的目的。另外,臭氧捕捉了电子后,并与氢离子结合产生高活性的羟基自由基,从而更好地降解空气中的有机物。M in formula (9) represents the organic matter in the air. TiO 2 forms electron-hole pairs under the irradiation of ultraviolet light. Ozone has a strong electrophilicity, which degrades the recombination probability of electrons and holes, thereby achieving the purpose of degrading organic matter. In addition, after ozone captures electrons, it combines with hydrogen ions to generate highly active hydroxyl radicals, thereby better degrading organic matter in the air.

本发明还同时利用水雾喷淋形成从数十微米到数百微米大小不等的雾状水微粒,大大提高了水与气体的接触面积,从而使得残留的臭氧、有机物气体等快速被水微粒吸收;水雾被水雾拦截网和拐形气水分离器拦截并与气体分离。拐形气水分离器由拐形状叶片组成,间距为10mm-100mm,其长度和拐角个数可以2-8个不等,根据气流阻力和分离效果情况确定。臭氧在水中的溶解度为空气的数十倍,同时在水溶液中臭氧还会同被捕捉的有机气体继续发生氧化还原反应,得到进一步的净化。水雾喷淋用水循环使用的同时,应进行定期添加或更换。The present invention also uses water mist spraying to form mist-like water particles ranging in size from tens of microns to hundreds of microns, which greatly increases the contact area between water and gas, so that residual ozone, organic gas, etc. are quickly absorbed by water particles. Absorption; the water mist is intercepted by the water mist interception net and the curved gas-water separator and separated from the gas. The curved air-water separator is composed of curved blades with a spacing of 10mm-100mm. Its length and number of corners can vary from 2 to 8, which are determined according to the airflow resistance and separation effect. The solubility of ozone in water is dozens of times that of air, and at the same time in the aqueous solution, ozone will continue to undergo oxidation-reduction reactions with captured organic gases to obtain further purification. While the water for water mist spraying is recycled, it should be added or replaced regularly.

与现有技术相比,本发明利用微粒捕集组件、臭氧-光催化组件和水雾喷淋-气水分离组件,既能利用臭氧辅助达到高效去除有气污染物和杀灭细菌的同时,又能消除因臭氧的残留而导致对环境的污染,从而实现高效去除气体中的有机污染物和杀灭细菌之目的。该发明技术特别适用于中央空调系统的室内空气净化,能有效地解决由于中央空调系统的使用引起传染病的交叉感染;也可用于室内空气加湿净化装置。Compared with the prior art, the present invention utilizes particle trapping components, ozone-photocatalytic components, and water mist spraying-air-water separation components, which can not only use ozone to assist in efficiently removing gaseous pollutants and killing bacteria, but also It can also eliminate the pollution to the environment caused by the residual ozone, so as to achieve the purpose of efficiently removing organic pollutants in the gas and killing bacteria. The inventive technology is especially suitable for the indoor air purification of the central air-conditioning system, and can effectively solve the cross-infection of infectious diseases caused by the use of the central air-conditioning system; it can also be used for indoor air humidification and purification devices.

附图说明Description of drawings

图1本发明结构示意图Fig. 1 structural representation of the present invention

具体实施方式Detailed ways

如图1所示,本发明包括:微粒捕集组件1、臭氧-光催化组件2、水雾喷淋-气水分离组件3,其连接关系为:按气流方向,微粒捕集组件1设置在最前面,微粒捕集组件1后面设置臭氧-光催化组件2,臭氧-光催化组件2后面设置水雾喷淋-气水分离组件3,三个组件互为独立且平行,四周与风管紧密连接,所有气流依次穿过微粒捕集组件1,臭氧-光催化组件2和水雾喷淋-气水分离组件3。As shown in Fig. 1, the present invention includes: particle trap assembly 1, ozone-photocatalysis assembly 2, water mist spray-air-water separation assembly 3, and its connection relationship is: according to the airflow direction, particle trap assembly 1 is arranged on At the front, the ozone-photocatalytic component 2 is set behind the particulate capture component 1, and the water mist spray-gas-water separation component 3 is set behind the ozone-photocatalytic component 2. The three components are independent and parallel to each other, and are closely connected with the air duct around them. connected, all airflows pass through the particle trapping assembly 1, the ozone-photocatalytic assembly 2 and the water mist spraying-gas-water separation assembly 3 in sequence.

微粒捕集组件1设有初效过滤网4和高压静电除尘部件5,这两个部件相互平行,且平行面垂直于气流方向,平行面尺寸与管道内截面一致。The particle collection assembly 1 is provided with an initial effect filter 4 and a high-voltage electrostatic precipitator 5, the two components are parallel to each other, and the parallel plane is perpendicular to the airflow direction, and the size of the parallel plane is consistent with the inner section of the pipeline.

臭氧-光催化组件2中包含有纳米光催化反应片6和紫外灯光源7,纳米光催化反应片6由泡沫金属负载纳米光催化剂制成,或是复合纳米光催化颗粒制成的过滤网,该过滤网为波浪状;紫外灯光源7是能产生臭氧的冷阴极紫外灯管或普通紫外灯管。复合纳米光催化颗粒制成的过滤网为两层以上,各层之间相互平行,间距为10-100cm,且垂直于气流方向;紫外灯管位于复合纳米光催化颗粒制成的过滤网的每两层之间,且平行于该过滤网。The ozone-photocatalytic component 2 includes a nano-photocatalytic reaction sheet 6 and an ultraviolet light source 7. The nano-photocatalytic reaction sheet 6 is made of foamed metal-supported nano-photocatalyst, or a filter made of composite nano-photocatalytic particles. The filter screen is wavy; the ultraviolet light source 7 is a cold-cathode ultraviolet lamp tube or an ordinary ultraviolet lamp tube capable of generating ozone. The filter screen made of composite nano-photocatalytic particles has more than two layers, each layer is parallel to each other, the distance is 10-100cm, and perpendicular to the airflow direction; the ultraviolet lamp is located in each filter screen made of composite nano-photocatalytic particles Between the two layers, and parallel to the filter.

水雾喷淋-气水分离组件3中设有喷嘴8、水雾拦截网9、拐形气水分离器10、蓄水箱11、调节阀12、水泵或气泵13和连接管道14,喷嘴8的前方依次是水雾拦截网9和拐形气水分离器10,蓄水箱11位于水雾拦截网9和拐形气水分离器10的底部,蓄水箱11、调节阀12、水泵或气泵13和喷嘴8之间用连接管道14连接。The water mist spray-air-water separation assembly 3 is provided with nozzles 8, water mist interception nets 9, curved air-water separators 10, water storage tanks 11, regulating valves 12, water pumps or air pumps 13, connecting pipes 14, and nozzles 8 The front of the water mist intercepting net 9 and the curved air-water separator 10 are successively, the water storage tank 11 is positioned at the bottom of the water mist intercepting net 9 and the curved air-water separator 10, the water storage tank 11, the regulating valve 12, the water pump or Connect with connecting pipe 14 between air pump 13 and nozzle 8.

当空气进入该系统后,经由初效过滤网4和高压静电除尘部件5,微小颗粒去除后进入臭氧-光催化组件2。在臭氧的氧化作用、光催化降解作用、紫外灯照射以及三者的协同作用下,空气中的有机污染物和细菌等被氧化分解和杀灭。残留的臭氧气体和有机污染物在大量微小水雾作用下被吸收,同时水雾被水雾拦截网9和拐形气水分离器10拦截,最后排出的是清洁空气。When the air enters the system, it passes through the primary filter 4 and the high-voltage electrostatic precipitator 5 , and enters the ozone-photocatalytic component 2 after the tiny particles are removed. Under the oxidation of ozone, photocatalytic degradation, ultraviolet lamp irradiation and the synergistic effect of the three, organic pollutants and bacteria in the air are oxidatively decomposed and killed. Residual ozone gas and organic pollutants are absorbed under the action of a large amount of tiny water mist, and the water mist is intercepted by the water mist interception net 9 and the curved air-water separator 10 at the same time, and finally the clean air is discharged.

Claims (4)

1. A combined air purification and sterilization device comprises: particle entrapment subassembly (1), ozone-photocatalysis subassembly (2), characterized by still includes: the water mist spraying-gas-water separation component (3) is characterized in that the particle trapping component (1) is arranged at the forefront according to the direction of air flow, the ozone-photocatalysis component (2) is arranged behind the particle trapping component (1), the water mist spraying-gas-water separation component (3) is arranged behind the ozone-photocatalysis component (2), the three components are independent and parallel to each other and are closely connected with an air pipe at the periphery, and all air flow sequentially penetrates through the particle trapping component (1), the ozone-photocatalysis component (2) and the water mist spraying-gas-water separation component (3).
2. The combined air purification and sterilization device as claimed in claim 1, wherein the particle collection module (1) is provided with a primary filter screen (4) and a high-voltage electrostatic dust removal component (5), the primary filter screen and the high-voltage electrostatic dust removal component are parallel to each other, the parallel surfaces of the primary filter screen and the high-voltage electrostatic dust removal component are perpendicular to the direction of the air flow, and the size of the parallel surfaces is consistent with the inner cross section of the pipeline.
3. The combined air purifying and sterilizing device of claim 1, wherein the ozone-photocatalytic component (2) comprises a nano-photocatalytic reaction sheet (6) and an ultraviolet lamp light source (7), the nano-photocatalytic reaction sheet (6) is made of foam metal loaded nano-photocatalyst or is a filter screen made of composite nano-photocatalytic particles, the filter screen is wavy, the ultraviolet lamp light source (7) is a cold cathode ultraviolet lamp tube or a common ultraviolet lamp tube capable of generating ozone, the filter screen made of the composite nano-photocatalytic particles is more than two layers, the layers are parallel to each other, the distance is 10-100cm and is perpendicular to the air flow direction, and the ultraviolet lamp tube is positioned between each two layers of the filter screen made of the composite nano-photocatalytic particles and is parallel to the filter screen.
4. The combined air purification and sterilization device according to claim 1, wherein the water mist spray-air-water separation assembly (3) is provided with a nozzle (8), a water mist interception net (9), a crank-shaped air-water separator (10), a water storage tank (11), a regulating valve (12), a water pump or air pump (13) and a connecting pipeline (14), the water mist interception net (9) and the crank-shaped air-water separator (10) are sequentially arranged in front of the nozzle (8), the water storage tank (11) is positioned at the bottoms of the water mist interception net (9) and the crank-shaped air-water separator (10), and the water storage tank (11), the regulating valve (12), the water pump or air pump (13) and the nozzle (8) are connected through the connecting pipeline (14).
CNB2004100252085A 2004-06-17 2004-06-17 Combined type air purification and sterilization device Expired - Fee Related CN1252423C (en)

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