不同种类的油烟净化器的工作原理：

The working principle of different kinds of oil fume purifiers:

1.催化剂燃烧法

1. Catalyst combustion method

燃烧净化法的原理是利用高温燃烧所产生的热量进行氧化反应，把油烟废气中的污染物质转化为CO2和H2O等物质，从而达到净化目的。在燃烧过程中，让油烟废气通过自净化催化剂，催化剂的催化反应有利于污染物的转化。一般采用陶瓷或金属蜂窝进行载体进行氧化催化。这类油烟净化设备只适用油烟浓度很低的场合，如食物生吃或制作半成品。

The principle of combustion purification method is to use the heat generated by high temperature combustion to carry out oxidation reaction, and convert the pollutants in the exhaust gas of oil fume into such substances as CO2 and H2O, so as to achieve the purpose of purification. In the combustion process, the fume exhaust gas is allowed to pass through the self-purification catalyst, and the catalytic reaction of the catalyst is conducive to the conversion of pollutants. In general, ceramic or metal honeycomb carriers are used for oxidation catalysis. This kind of fume purification equipment is only suitable for low fume concentration occasions, such as raw food or semi-finished products.

2.活性炭吸附法

2. Activated Carbon Adsorption Method

用粒状活性炭或活性炭纤维毡吸附油烟中的污染物粒子。这种设备的特点与过滤净化设备相似，但去除油烟异味分子的效果较好。

Adsorption of pollutant particles in soot by granular activated carbon or activated carbon fiber felt. The characteristics of this equipment are similar to those of filtration and purification equipment, but the effect of removing odor molecules from oil fume is better.

3.静电处理法

3. Electrostatic treatment

电场在外加高压的作用下，负极的金属丝表面或附近放出电子迅速向正极运动，与气体分子碰撞并离子化。油烟废气通过这个高压电场时，油烟粒子在极短的时间内因碰撞俘获气体离子而导致荷电，受电场力作用向正极集尘板运动，从而达到分离效果。这种设备的投资少、占地小、无二次污染、运行费用低。由于易于捕捉粒径较小的粉尘，净化效率高，可达85~95%。它的净化机理与气体方法的区别在于：分离力是静电力，直接作用在粒子上，而不是作用在气流上，因此具有能耗低，阻力小的特点。

Under the action of applied high voltage, electrons emitted from the wire surface or near the negative electrode move rapidly to the positive electrode, collide with gas molecules and ionize. When the fume exhaust gas passes through the high voltage electric field, the particles of the fume are charged by colliding and capturing gas ions in a very short time, and move towards the positive dust collector plate under the action of electric field force, thus achieving the separation effect. This kind of equipment has the advantages of less investment, less land occupation, no secondary pollution and low operation cost. Because it is easy to capture the dust with smaller particle size, the purification efficiency is high, up to 85-95%. The difference between its purification mechanism and gas method is that the separation force is electrostatic force, which acts directly on particles rather than on airflow, so it has the characteristics of low energy consumption and low resistance.