Classification of static eliminator
The static eliminator refers to a device that ionizes gas molecules to generate ions (generally positive and negative ion pairs) necessary to eliminate static electricity. The ions of the opposite polarity to the charged object move to the charged object and are in charge with the charged object. And, to achieve the purpose of eliminating static electricity. It has been widely used in the production of film, paper, cloth, powder and other industries. However, improper use or mistakes will weaken the static elimination effect or even cause disasters, so it is necessary to master the characteristics and usage of static eliminators. There are the following static eliminators. ① Self-induction static eliminator; The performance of self-induction static eliminator is usually measured by two indicators. One is corona current. The larger the corona current, the greater the number of static charges eliminated per unit time, and the better the effect of the eliminator. The other is the critical voltage. The so-called threshold voltage refers to the lowest voltage that can cause the tip of the eliminator to corona. The smaller the value, the smaller the remaining static voltage. ② External power supply static eliminator; The external power supply static eliminator is divided into AC type static eliminator and DC type static eliminator according to the type of high-voltage power supply. There are two types of static eliminators, power frequency and high frequency. If according to whether it has explosion-proof performance, it can be divided into explosion-proof static eliminator and non-explosion-proof static eliminator.