The working principle of micro diaphragm pump
Keyword：pump, diaphragm pump
The first mode of operation: the circular motion of the motor makes the diaphragm inside the pump make reciprocating motion through the mechanical device, so that the air in the pump cavity is compressed and stretched to form negative pressure. The pressure difference between the air at the pump mouth and the external air pressure is generated. Under the action of pressure difference, the gas is drawn into the pump cavity and then expelled from the vent.
Second mode of operation: the micro diaphragm pump uses the rotation of the screw to absorb and discharge the liquid.The middle screw of the micro diaphragm pump is the active screw, which is driven by the prime motor, and the screw on both sides is driven by the driven screw, which rotates in reverse with the active screw.The main and driven screw threads are two - headed threads.Because of the intermeshing of each screw and the close coordination of the screw with the inner wall of the liner, the suction inlet and outlet of the micro diaphragm pump will be separated into one or more sealing Spaces.With the rotation of the screw and meshing, the sealed space in pump suction side form unceasingly, the liquid from the suction chamber seal in among them, and since the suction chamber along the screw axial continuously goes on to the discharge end, will be closed in the space of the liquid discharge, like a nut in screw rotation being constantly move forward, this is the basic working principle of the micro diaphragm pump.