What is an air pump and a vacuum pump? The difference between the two

Vacuum pumps are widely classified, mainly including WLW series vertical oil-free vacuum pumps, W-type reciprocating vacuum pumps, 2X, 2XZ rotary vane vacuum pumps, ZJ and ZJH Roots vacuum pumps (ZJH vacuum pumps have been patented).

Products), 2SK, SK water ring vacuum pump, 2BV, 2BA water ring vacuum pump, H, 2H slide valve vacuum pump, TLZ vacuum pump, SL roots blower, JZJHX roots rotary vane vacuum unit, JZJHS roots water ring vacuum unit, JZJHWLW vertical oil-free vacuum unit, JZJP roots water jet vacuum unit, JZJHBA roots water ring vacuum unit, RPP.

There are many kinds of air compression pumps, which can be divided into positive displacement compression pumps and speed compression pumps according to their working principles. The working principle of positive displacement compression pump is to compress the volume of gas, so as to increase the density of gas molecules in unit volume and increase the pressure of compressed air. The working principle of speed compression pump is to improve the moving speed of gas molecules, so that the kinetic energy of gas molecules can be converted into pressure energy of gas, thus increasing the pressure of compressed air.