等离子废气处理设备
等离子废气处理设备中等离子体是一种聚集态物质，它有别于常识中的“固”、“液”、“气”三态物质，是物质的第四态，其所拥有的高能电子同空气中的分子碰撞时会发生一系列基元物化反应，并在反应过程中产生多种活性自由基和生态氧，即臭氧分解而产生的原子氧。
等离子废气处理设备去除污染物的原理：
在外加电场的作用下，介质放电产生的大量携能电子轰击污染物分子，使其电离、解离和激发，然后便引发了一系列复杂的物理、化学反应，使复杂大分子污染物转变为简单小分子安全物质，或使有毒有害物质转变成无毒无害或低毒低害的物质，从而使污染物得以降解去除。因其电离后产生的电子平均能量在10ev ，适当控制反应条件可以实现一般情况下难以实现或速度很慢的化学反应变得十分快速。
等离子废气处理设备适用范围：
等离子空气净化器在居家、医疗、工业领域均有应用，居家领域以单机类的家用空气净化器为市场的主流产品。等离子废气处理设备最主要的功能是去除空气中的颗粒物，包括过敏原、室内的PM2.5等，同时还可以解决由于装修或者其他原因导致的室内、地下空间、车内挥发性有机物空气污染问题。由于相对封闭的空间中空气污染物的释放有持久性和不确定性的特点，因此使用空气净化器净化室内空气是国际公认的改善室内空气质量的方法之一。
等离子废气处理设备的技术特点：
1、过滤技术
颗粒污染物过滤技术主要是HEPA滤网，HEPA滤网质量参差不齐，一些小品牌的滤网虽然具有较高的过滤效率，但是阻力大，能效比比较低，而且很容易堵塞，寿命较短，一般建议选用带有静电驻极的深度容尘HEPA滤网，静电驻极技术使得无纺布纤维带有正负电，有效捕捉空气中的颗粒物，很多HEPA滤网都号称具有静电驻极技术，但是由于技术原因很多滤网的驻极电荷在较短的时间内会衰减的很快，导致过滤效率降低。
可以选择市面上的如3M静电驻极的HEPA滤网，与3M口罩采用同样静电驻极技术，永久保证驻极效率不衰减。
2、能效比和能效等级
等离子废气处理设备通常是长期连续使用的，能效比作为衡量空气净化器净化能力与电力消耗的重要指标，值得大家关注。能效比和能效等级越高，代表空气净化器越节能，使用成本越低。
3、臭氧释放量
臭氧作为强氧化剂具有一定的净化能力，但对人体是有伤害的。国家对空气净化器臭氧释放量有强制性安全要求，限定在≤5×10-6%（臭氧具有鱼腥味）。
Plasma in plasma exhaust gas treatment equipment is a kind of aggregate material, it is different from the common sense of " solid"," liquid", " gas" three-state material, is the fourth state of material, its own high energy electrons collide with molecules in the air will occur a series of elementary physical and chemical reactions, and in the process of reaction produce a variety of active radicals and ecological oxygen, namely ozone decomposition of atomic oxygen.
Principle of removing pollutants by plasma exhaust gas treatment equipment;
Under the action of an external electric field, a large number of energetic electrons generated by dielectric discharge bombard pollutant molecules to ionize, dissociate and excite the pollutants, and then a series of complex physical and chemical reactions are triggered, so that the complex macromolecular pollutants are converted into simple small molecule safety substances or toxic and harmful substances are converted into non-toxic harmless substances or low-toxicity and low-harm substances, thereby degrading and removing the pollutants. Because the average energy of electrons generated after ionization is 10ev, the chemical reaction which is difficult to realize or slow in general can be realized by properly controlling the reaction conditions.
Scope of application of plasma exhaust gas treatment equipment:
Plasma air purifier has been applied in the fields of home, medical treatment and industry. the main products in the field of home are household air purifiers of single machine type. The main function of plasma exhaust gas treatment equipment is to remove particulate matter in the air, including allergens, indoor PM2.5, etc., but also can solve the indoor, underground space, indoor volatile organic matter air pollution caused by decoration or other reasons. As the release of air pollutants in relatively closed space is characterized by persistence and uncertainty, the use of air purifier to purify indoor air is one of the internationally recognized methods to improve indoor air quality.
Technical characteristics of plasma exhaust gas treatment equipment;
1. filtration technology
Particle filter technology is mainly hepa filter screen, hepa filter screen quality is uneven, although some small brands of filter screen has high filtration efficiency, but the resistance is big, energy efficiency is relatively low, and it is easy to block, life is short, it is generally recommended to choose a deep dust-containing hepa filter screen with electrostatic electret, electrostatic electret technology makes the non-woven fabric with positive and negative electricity, effectively capture the air
A commercially available hepa screen such as 3m electrostatic electret can be selected, using the same electrostatic electret technology as 3m masks to permanently ensure that electret efficiency does not decay.
2. energy efficiency ratio and energy efficiency grade
Plasma exhaust gas treatment equipment is usually used continuously for a long time. energy efficiency ratio is an important index to measure the purification capacity and power consumption of air purifier. The higher the energy efficiency ratio and energy efficiency level, the more energy-efficient the air cleaner is, the lower the cost of use.
3. ozone release
Ozone as a strong oxidant has certain purification ability, but it is harmful to human body. The state has mandatory safety requirements for air cleaner ozone emissions, limited to 5 x 10 - 6 % ( ozone fishy smell ). |
