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Detailed explanation of working principle of micro diaphragm vacuum pump

日期:2021-11-19   来源:时光电子

Micro diaphragm pump refers to the micro vacuum pump, with an in and out of the exhaust nozzle, exhaust nozzle each one, through the internal mechanical device to make the diaphragm inside the vacuum pump reciprocating movement, and can continue to form a vacuum or negative pressure at the entrance, the formation of micro positive pressure at the exhaust nozzle; The working medium is mainly gas, a compact instrument. Micro diaphragm pump has two ways of working, the following details for you to introduce the working principle of micro diaphragm vacuum pump.

Micro electric diaphragm pump is a micro DC motor (general voltage is 5V, 12V, 24V motor) do power drive device, drive the internal mechanical eccentric device to do eccentric movement, driven by eccentric movement internal diaphragm reciprocating motion. To fixed volume of air compressing pump cavity (compression bleeding point shut, vent opening form micro positive pressure), tensile, compression vent closed, when bleeding point on the formation of negative pressure), atmospheric pressure with the outside world in vacuum pump intake pressure difference, under the action of pressure difference, the gas pressure (suction) into the pump chamber, then discharge from the vent.



Micro diaphragm pump is the use of screw rotation to suction and discharge liquid. Micro diaphragm pump middle screw for the active screw, driven by the prime mover rotation, the screw on both sides of the driven screw, with the active screw reverse rotation. Main and driven screw threads are double thread. As a result of the screw meshing each other and the screw and lining wall closely match, in the micro diaphragm pump between the inlet and outlet, will be separated into one or more sealed space. As the rotation of the screw and meshing, the sealed space formed in the vacuum pump suction side constantly, 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 liquid discharge, each space is like a nut in screw rotation being constantly move forward, this is the basic working principle of the micro diaphragm pump.


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