Reasonably select the appropriate air filter machine based on the specific situation, and the selection principles are as follows:
1. Determine the efficiency of the final air filter machine according to the indoor cleanliness and purification standards, and reasonably select the combination stage and efficiency of each stage of the air filter machine. If general purification is required indoors, a primary filter can be used; If moderate purification is required indoors, two-stage filters of primary and medium efficiency should be used; If ultra clean purification is required indoors, three levels of purification filtration, namely primary, medium, and high efficiency, should be used, and the efficiency of each level of filter should be matched reasonably and properly. If the efficiency difference between adjacent levels of filters is too large, the previous level of filter cannot protect the next level of filter.
2. Accurately measure the dust content and particle characteristics of outdoor air. Because the filter filters and purifies outdoor air before sending it indoors, the dust content of outdoor air is an important data. Especially in multi-stage purification and filtration treatment, when choosing a pre filter, factors such as usage environment, spare parts costs, operating energy consumption, maintenance, and supply should be comprehensively considered before making a decision.
3. Correctly determine the filter characteristics. The characteristics of a filter mainly include filtration efficiency, resistance, penetration rate, dust holding capacity, filtration wind speed, and processing air volume. When conditions permit, filters with high efficiency, low resistance, large dust holding capacity, moderate filtering air speed, large processing air volume, easy manufacturing and installation, and low price should be selected as much as possible. This is an economic analysis that takes into account both one-time and secondary investments, as well as energy efficiency ratio, when selecting air filter machine.
4. Analyze the properties of dusty gases. The properties of dusty gases related to the selection of air filter machine mainly include temperature, humidity, acidity and alkalinity, and the amount of organic solvents. Because some filters allow for use at high temperatures, while others can only operate at room temperature and humidity, and the acidity, alkalinity, and organic solvent content of dusty gases have an impact on the performance and efficiency of air filter machine.
