Dry gas and measuring method, a vacuum pump

understand the dry vacuum pump vacuum is defined, it would be easier application. Then the smoke gas and calculation method for simple explanation.

1, the smoke gas: smoke gas is dry vacuum pump pump efficiency of a factor. General company with L/S and m3 / h to express. Is a basic parameter make up for the steam leakage rate. To take one as it is easy to understand, under the basic knowledge of the capacity of container, why is it easy to smoke gas big dry vacuum water pump must be in vacuum values, while pumping gas small slow can't even smoke in everybody to vacuum value? Because the pipeline or container from beginning to end is unlikely to make sure there is no doubt that don't leak water vapor, and smoke gas big compensates for the leakage is caused by a decrease in vacuum value, therefore, the amount of air is easy to draw rational vacuum values in the values. Suggestions here, under the condition of the basic knowledge to predict smoke gas, we try to choose high level of mechanical pump pumping gas.

2, production process requirement of smoke gas ( Vacuum rate)

mechanical pump for vacuum rate ( Which would require mechanical pump under pressure from their work, out of gas, liquid, solid professional ability) , general company: m3 / h, L/S, m3 / min. Specific measure can refer to the following formula:

S = ( V / t) ×ln( P1/P2)

in it: S for mechanical pump vacuum rate ( L/s)

V for vacuum chamber volume ( L)

t in order to ensure the time needed for the vacuum value ( s)

(P1 for the initial gas pressure Pa)

P2 for gas pressure ( Pa)

clear dry vacuum pump after this kind of professional skills, will know how to choose the appropriate specifications according to the work situation, this kind of basic parameters are some evaluation methods.