Application and working principle of air purification engineering

The air purification project has the most obvious effect in improving product quality. According to reports in foreign documents, products manufactured in the 10000 and 100 clean rooms of semiconductors have passed the pressure test in the 100 clean room and the outside atmosphere. Transistor coating and diffusion are carried out in the middle, and the performance distribution of the products in the class 100 clean room is concentrated, and the peak appears in the place of higher performance. The performance of the product in the atmosphere is extremely dispersed and the performance is extremely unstable. It can be seen that (1) whether there is air purification or not, the product yield is very different. (2) In order to improve product quality, not only the environment where the product is produced needs to be clean, but the production of its key raw materials and ingredients should also be carried out in a clean environment.

　　 However, just like treating everything cannot be absolute, the role of air cleaning technology cannot be absolute, and the effect of improving product quality cannot be completely attributed to it. According to the analysis of survey materials, for the semiconductor component sector, for example, the role of air cleaning technology in improving product quality accounts for approximately 20% of the entire production, while the automation of the production process accounts for 60%, and other factors account for 20%. Of course, after the problem of the production process has been solved, air purification is the main contradiction. For example, very large scale integrated circuits can hardly be produced without a clean environment.

　　 For industries and sectors that require air purification: electronics, precision machinery, aerospace, chemical industry, printing industry, atomic energy industry, food industry, pharmaceutical industry, hospitals, animal experiments, injection molding industry, etc.

working principle:

　　 Classification of working principle of air purifier Active purification type Filterless type According to the active sterilization principle of these products, it can be divided into silver ion technology, negative ion technology, low temperature plasma technology, photocatalyst technology and plasmatic group ion technology.

　　The working principle of the air purification project is: using a fan to draw air into the machine, and filter the air through the built-in filter, which can filter dust, odors, toxic gases and kill some bacteria. The filter is divided into: dust collection filter, formaldehyde removal filter, deodorization filter, HEPA filter, etc. Among them, the higher cost is the HEPA filter, which can decompose toxic gases and sterilize, especially to inhibit secondary pollution. The feature of this type of product is that the fan function and the quality of the filter determine the purification effect, the placement of the machine and the indoor layout affect whether the purification is complete, the indoor purification effect is uneven, and it is difficult to complete, and the filter replacement cost is also high.