CN100427183C - Air purification assembly filled with nano TiO2-carried ball - Google Patents
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Abstract
本发明提供的是一种填充式球载纳米TiO2气体净化组合装置。它包括壳体，在壳体侧壁上开有进气孔，壳体的中间设置有紫外灯管，壳体底部开有洁净空气出口，在壳体与紫外灯管之间填充有披覆有纳米级二氧化钛光触媒的玻璃珠。本发明利用光催化氧化技术与吸附、过滤技术相结合对室内空气污染物进行去除，使用方便、经济，可将其应用于室内空气净化器中，提高室内空气净化器对室内空气污染物的去除效率，主要应用于室内空气污染物的去除，尤其对室内因装修引起的有机化学污染物有较好的去除效果，且可对室内空气有机污染物进行比较彻底的分解，避免了二次污染的发生。
The invention provides a packed ball-carried nano TiO 2 gas purification combined device. It includes a shell, with an air inlet hole on the side wall of the shell, an ultraviolet lamp tube in the middle of the shell, a clean air outlet at the bottom of the shell, and a coating coated between the shell and the ultraviolet lamp tube. Nanoscale TiO2 photocatalyst glass beads. The invention combines photocatalytic oxidation technology with adsorption and filtration technology to remove indoor air pollutants, which is convenient and economical, and can be applied to indoor air purifiers to improve the removal of indoor air pollutants by indoor air purifiers Efficiency, mainly used in the removal of indoor air pollutants, especially for the removal of organic chemical pollutants caused by indoor decoration, and can thoroughly decompose indoor air organic pollutants, avoiding secondary pollution occur.
Description
(一)技术领域 (1) Technical field
本发明涉及的是一种空气净化装置，具体地说是一种应用光催化氧化技术和吸附、过滤技术相结合处理室内空气中污染物质的装置。The invention relates to an air purification device, in particular to a device for treating pollutants in indoor air by combining photocatalytic oxidation technology with adsorption and filtration technology.
(二)背景技术 (2) Background technology
室内空气净化器是近年来室内空气污染净化的主要方法之一。随着人民生活水平的提高，其应用更为普遍。我国国产的室内空气净化器多采用滤网负离子、静电集尘以及臭氧发生等传统净化方式，普遍存在处理效率较低、易造成二次污染等不足。而进口产品虽采用较先进的技术，但是售价昂贵，且大部分体积较大。以现在家庭中应用较多，用户反应较好的臭氧空气净化器为例，其通过向室内释放臭氧以达到氧化室内污染物，将污染物降解的目的。但实验研究结果表明，该设备存在氧化效率较低、室内臭氧含量过高等弊病，易对人体造成危害。另一种普遍应用的是采用过滤方式的室内空气净化器，它虽可有效的净化室内空气中的悬浮物和少部分有害物质，但是对装饰装修造成的化学污染无法消除，同时存在着滤网需定期更换且使用周期不确定的问题，并且被吸附在滤网表面的室内空气污染物并未被彻底去除，因而使用过的滤网需要后期处理。因此，市售的空气净化器有待进一步的改进，以提高其去除效率，同时减少二次污染的发生。Indoor air purifiers are one of the main methods for purifying indoor air pollution in recent years. With the improvement of people's living standards, its application is more common. Domestically produced indoor air purifiers mostly use traditional purification methods such as filter negative ions, electrostatic dust collection, and ozone generation, which generally have disadvantages such as low processing efficiency and easy to cause secondary pollution. Although imported products adopt more advanced technology, they are expensive and most of them are relatively large in size. Take the ozone air purifier, which is widely used in households and has good user response, as an example. It releases ozone into the room to achieve the purpose of oxidizing indoor pollutants and degrading pollutants. However, the experimental research results show that the equipment has disadvantages such as low oxidation efficiency and high indoor ozone content, which is easy to cause harm to the human body. Another commonly used indoor air purifier is the filter method. Although it can effectively purify suspended solids and a small number of harmful substances in the indoor air, the chemical pollution caused by decoration cannot be eliminated. It needs to be replaced regularly and the service life is uncertain, and the indoor air pollutants adsorbed on the surface of the filter screen have not been completely removed, so the used filter screen needs post-processing. Therefore, commercially available air purifiers need to be further improved to increase their removal efficiency and reduce the occurrence of secondary pollution.
(三)发明内容 (3) Contents of the invention
本发明目的在于提供一种净化效果好、无二次污染、成本低的填充式球载纳米TiO2气体净化组合装置。The purpose of the present invention is to provide a packed ball-mounted nano- TiO2 gas purification combined device with good purification effect, no secondary pollution and low cost.
本发明的目的是这样实现的：它包括壳体，在壳体侧壁上开有进气孔，所述的壳体侧壁上的进气孔从上至下进气孔面积逐渐减少，壳体的中间设置有紫外灯管，壳体底部开有洁净空气出口，在壳体与紫外灯管之间填充有披覆有纳米级二氧化钛光触媒的玻璃珠，在壳体外包覆有纤维织物层，壳体底部与披覆有纳米级二氧化钛光触媒的玻璃珠之间设置有纤维活性炭滤网。The object of the present invention is achieved as follows: it comprises a housing, and an air inlet is opened on the side wall of the housing, and the area of the air inlet on the side wall of the housing decreases gradually from top to bottom, and the housing There is an ultraviolet lamp tube in the middle of the body, a clean air outlet is opened at the bottom of the shell, glass beads coated with nano-scale titanium dioxide photocatalyst are filled between the shell and the ultraviolet lamp tube, and a fiber fabric layer is covered outside the shell. A fibrous activated carbon filter is arranged between the bottom of the shell and the glass beads covered with nano-scale titanium dioxide photocatalyst.
本发明是采用填充式球载纳米二氧化钛光催化氧化技术与吸附、过滤技术相结合的气体净化处理装置。The invention is a gas purification treatment device which adopts the combination of filled ball-supported nano-titanium dioxide photocatalytic oxidation technology and adsorption and filtration technology.
室内空气在常规的气体动力源作用下，由净化组合装置的侧面进入。首先经过纤维织物，室内空气中的颗粒物被截留去除，然后气体进入光催化氧化反应阶段，气体与填充在装置内的披覆有纳米级二氧化钛光触媒的玻璃珠接触，室内空气中的有机污染物在与披覆有纳米级二氧化钛光触媒的玻璃珠接触时为光触媒所吸附，并进一步在紫外灯的照射下，利用近紫外光提供的能量，被光触媒催化氧化分解为小分子的污染物。此中间产物在还没来得及从光触媒表面脱附的情况下，进一步为光触媒催化氧化，最终被分解为水和二氧化碳。然后从光触媒表面脱附，流经纤维活性炭滤网，进行再次净化，以防止有少量未被完全分解的小分子有机物质进入空气，最后洁净安全的空气流出净化组合装置。内部光催化反应装置的壳体为圆柱形，不锈钢材质，侧面开有进气孔，并且从上至下进气孔面积逐渐减少，这样可以使整个光催化反应过程温度分布均匀，且气流稳定，从而达到较稳定的去除效果。Indoor air enters from the side of the purification combination device under the action of a conventional gas power source. First pass through the fiber fabric, the particles in the indoor air are trapped and removed, and then the gas enters the photocatalytic oxidation reaction stage, the gas contacts the glass beads filled with nano-scale titanium dioxide photocatalysts in the device, and the organic pollutants in the indoor air When in contact with the glass beads coated with nano-scale titanium dioxide photocatalyst, it is adsorbed by the photocatalyst, and further irradiated by the ultraviolet lamp, using the energy provided by the near ultraviolet light, it is catalyzed and oxidized by the photocatalyst to decompose into small molecule pollutants. Before the intermediate product has time to desorb from the surface of the photocatalyst, it is further catalyzed and oxidized by the photocatalyst, and finally decomposed into water and carbon dioxide. Then desorb from the surface of the photocatalyst, flow through the fiber activated carbon filter, and purify again to prevent a small amount of small molecule organic substances that have not been completely decomposed from entering the air, and finally the clean and safe air flows out of the purification combination device. The housing of the internal photocatalytic reaction device is cylindrical, made of stainless steel, with air inlet holes on the side, and the area of the air inlet holes gradually decreases from top to bottom, so that the temperature distribution of the entire photocatalytic reaction process can be uniform, and the airflow is stable. So as to achieve a more stable removal effect.
本发明利用光催化氧化技术与吸附、过滤技术相结合对室内空气污染物进行去除，使用方便、经济，可将其应用于室内空气净化器中，提高室内空气净化器对室内空气污染物的去除效率，主要应用于室内空气污染物的去除，尤其对室内因装修引起的有机化学污染物有较好的去除效果，且可对室内空气有机污染物进行比较彻底的分解，避免了二次污染的发生。The invention combines photocatalytic oxidation technology with adsorption and filtration technology to remove indoor air pollutants, which is convenient and economical, and can be applied to indoor air purifiers to improve the removal of indoor air pollutants by indoor air purifiers Efficiency, mainly used in the removal of indoor air pollutants, especially for the removal of organic chemical pollutants caused by indoor decoration, and can thoroughly decompose indoor air organic pollutants, avoiding secondary pollution occur.
(四)附图说明 (4) Description of drawings
附图是本发明的结构示意图。Accompanying drawing is the structural representation of the present invention.
(五)具体实施方式 (5) Specific implementation methods
下面结合附图举例对本发明作更详细的描述：The present invention is described in more detail below in conjunction with accompanying drawing example:
填充式球载纳米TiO2气体净化组合装置的组成包括壳体5，在壳体侧壁上开有进气孔6，壳体的中间设置有紫外灯管4，壳体底部开有洁净空气出口2，在壳体与紫外灯管之间填充有披覆有纳米级二氧化钛光触媒的玻璃珠7。在壳体外包覆有纤维织物层3。壳体底部与披覆有纳米级二氧化钛光触媒的玻璃珠之间设置有纤维活性炭滤网8。The composition of the filled spherical nano-TiO 2 gas purification combination device includes a
含有有机污染物的室内空气1，在外置的常规气体动力源作用下经纤维织物过滤后进入光催化氧化室内空气处理装置，与装置中披覆有纳米级二氧化钛光触媒的玻璃珠相接触。气体中的有机污染物为玻璃珠表面的光触媒所吸附，并在紫外灯的照射下发生降解反应，从而得以从室内空气中去除。为防止有少量污染物残留在气体中，反应器的出口安装有纤维活性炭滤网，对未被完全降解的小分子有机污染物进行吸附去除。光催化反应降解有机物的最终产物二氧化碳和水则随洁净的空气流出净化组合装置。
光催化技术处理污染物是近年来国内外的一个热门研究课题。在众多种类的光触媒中二氧化钛光触媒以其特殊的物化特性，例如：热性质稳定、成本低、分解效率高等优点，在众多领域得到了极为广泛的应用。目前，光催化研究方向，包括有机物分解反应、无机物氧化还原反应等。Photocatalytic treatment of pollutants is a hot research topic at home and abroad in recent years. Among many types of photocatalysts, titanium dioxide photocatalyst has been widely used in many fields due to its special physical and chemical characteristics, such as stable thermal properties, low cost, and high decomposition efficiency. At present, the research direction of photocatalysis includes organic decomposition reaction and inorganic redox reaction.
光催化反应发生在二氧化钛触媒颗粒表面，当光子(photon)照射于二氧化钛触媒表面且其能量(hv)大于或等于二氧化钛触媒的能隙值时，将会有电子-空穴对(electron-electron hole pair)产生。当某种污染物被吸附于光触媒表面时，则导电带(conduction band；CB)上的电子将与其进行还原反应，而价电带(valence band；VB)上的空穴则与其进行氧化反应。一般认为，此电子-空穴对若与水分子反应即会形成具有活性的氢氧自由基(OH·)，此活性OH·具有极强的氧化还原能力，可有效分解污染物。Al-Ekabi等曾于1998年提出氢氧自由基可经由电洞与吸附于二氧化钛表面的H2O或OH-的反应而生成，其反应如下：The photocatalytic reaction occurs on the surface of the titanium dioxide catalyst particles. When the photon (photon) irradiates the surface of the titanium dioxide catalyst and its energy (hv) is greater than or equal to the energy gap value of the titanium dioxide catalyst, there will be electron-hole pairs (electron-electron hole pair) generated. When a certain pollutant is adsorbed on the surface of the photocatalyst, the electrons on the conduction band (CB) will undergo a reduction reaction with it, while the holes on the valence band (VB) will undergo an oxidation reaction with it. It is generally believed that if the electron- hole pair reacts with water molecules, it will form an active hydroxyl radical (OH · ), which has a strong redox ability and can effectively decompose pollutants. Al-Ekabi et al. proposed in 1998 that hydroxyl radicals can be generated through the reaction of holes and H 2 O or OH - adsorbed on the surface of titanium dioxide. The reaction is as follows:
hvb++H2O→OH·+H+ hvb + +H2O→OH · +H +
hvb++OH-→OH· hvb + +OH - →OH ·
光催化氧化法去除有机污染物的反应效率，受很多因素影响。其反应效率除与光触媒的种类、光强、光利用率、操作条件、温度、湿度等密切相关外，反应器的设计亦为光催化氧化反应效率的重要影响因素。本装置提高了光能的利用效率，使空气中污染物与光触媒接触更加充分，因而提高了光催化氧化法对有机污染物的去除效率。The reaction efficiency of photocatalytic oxidation to remove organic pollutants is affected by many factors. The reaction efficiency is not only closely related to the type of photocatalyst, light intensity, light utilization rate, operating conditions, temperature, humidity, etc., but also the design of the reactor is an important factor affecting the efficiency of the photocatalytic oxidation reaction. The device improves the utilization efficiency of light energy, makes the pollutants in the air more fully contact with the photocatalyst, and thus improves the removal efficiency of the organic pollutants by the photocatalytic oxidation method.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388129A (en) * | 2017-07-31 | 2017-11-24 | 中山乐宜嘉家居设备有限公司 | A kind of fan lamp with air-cleaning function |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101823778B (en) * | 2010-05-24 | 2012-02-01 | 哈尔滨工程大学 | Continuous photocatalytic reaction device |
| CN101912729B (en) * | 2010-07-30 | 2012-12-05 | 华南理工大学 | Method for purifying organic polluted gas by utilizing glass ring covered with nanometer titanium dioxide thin film |
| EP2651536B1 (en) * | 2010-12-17 | 2016-07-13 | Nano And Advanced Materials Institute Limited | System and method for air purification using enhanced multi-functional coating based on in-situ photocatalytic oxidation and ozonation |
| CN102886205A (en) * | 2012-08-16 | 2013-01-23 | 韩汶冀 | Photolysis purifying device for poisonous waste gas |
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| CN107905472A (en) * | 2017-10-31 | 2018-04-13 | 苏州巴洛特新材料有限公司 | There is the printing ornament plate of purification and airing function |
| CN109200814B (en) * | 2018-11-26 | 2020-08-07 | 重庆市农业科学院 | Method and device for purifying malodorous gas with low energy consumption and high efficiency |
| CN111811069A (en) * | 2020-06-10 | 2020-10-23 | 陆则龙 | Formaldehyde removal ceramic tile based on photocatalyst technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486778A (en) * | 2003-06-19 | 2004-04-07 | 上海交通大学 | Photocatalytic Air Purifier |
| CN2619632Y (en) * | 2003-05-15 | 2004-06-09 | 南海市华星光电实业有限公司 | Indoor air purifier |
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| CN2619632Y (en) * | 2003-05-15 | 2004-06-09 | 南海市华星光电实业有限公司 | Indoor air purifier |
| CN1486778A (en) * | 2003-06-19 | 2004-04-07 | 上海交通大学 | Photocatalytic Air Purifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388129A (en) * | 2017-07-31 | 2017-11-24 | 中山乐宜嘉家居设备有限公司 | A kind of fan lamp with air-cleaning function |
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