company news about How to calculate the exhaust air volume of the painting room

The exhaust gas of the paint shop is a kind of poisonous gas which is harmful to human health. How to calculate the air volume of the spray painting room? Different spray paint room size and different number of pressure fans, the selected spray paint room exhaust gas treatment equipment of the air volume is different. For example, the air volume calculation method of the spray line is different from that of the ordinary spray booth, some need to consider the number of air changes, and some need to be calculated according to the cross-sectional area. The calculation method and formula of exhaust gas treatment air volume of spray painting room are as follows:
Calculation of exhaust gas treatment air volume in spray painting room
1, spray painting room exhaust gas treatment equipment air volume calculation method: equipment air volume = spray painting room volume (length x width x height) m3 x constant (60~100);

Explanation: The constant 60~100 in the formula is the experience value, if the spray booth working time is very short, the spray painting amount is very small, then the constant can choose 60; If the working time of the spray booth is short and the amount of spray painting is small, the constant can be selected 70-80; If the working time of the spray painting room and the amount of spray painting are large, the constant can be selected from 90-100;

2, exhaust gas capture rate evaluation air volume calculation method: according to the workshop space volume and the number of 60 / hour air changes to calculate the new air volume, with the ratio of the actual air volume of organized emission and the new air volume required by the workshop as the exhaust gas capture rate;

Explanation: workshop required fresh air volume =60* workshop area * workshop height; Exhaust gas capture rate = actual organized exhaust volume of the workshop/new air volume required by the workshop;

3, spray painting line exhaust gas treatment equipment air volume calculation method: equipment air volume = area of collection exhaust gas smoke hood (length * width) m2 x constant (2000~4000);

Explanation: The constant in the formula 2000~4000 is the experience value, if the painting room working time is very short, the spray painting amount is very small, then the constant can choose 2000; If the working time of the spray booth is short and the amount of spray painting is small, the constant can be selected 3000; If the working time of the spray painting room and the amount of spray painting are large, the constant can be selected 4000.