The mini vacuum pump refers to one of the suction nozzle and the exhaust nozzle which are provided one by one, and can continuously form a vacuum or a negative pressure at the inlet; a micro positive pressure is formed at the exhaust nozzle; A compact instrument whose working medium is mainly gas.
The basic principle of the micro vacuum pump: the circular motion of the motor, the diaphragm inside the pump is reciprocated by mechanical means, so that the air in the pump chamber of the fixed volume is compressed and stretched to form a vacuum (negative pressure), at the pump suction port. At the atmospheric pressure, a pressure difference is generated. Under the action of the pressure difference, the gas is pressurized (sucked) into the pump chamber and discharged from the exhaust port.
A closed container (at the beginning, the internal pressure is 100KPa), connected to a mini vacuum pump, and continuously pumping it. Finally, the gas pressure in the closed container will be lower than atmospheric pressure and reach an absolute pressure of 60KPa. Not only that, but through special technical improvements, in addition to the single-extracting micro vacuum pump, it can also form a mini vacuum pump for pumping and air pumping (that is, the exhaust end can generate relatively large positive pressure) for pressurization, inflation, and Overcoming system resistance and so on, as well as a very unique dual-use micro-vacuum pump, it can be used for long-term idling, dry-running, etc., unlike the normal pump idling, or dry rotation will damage the pump.
Just because the suction port or the exhaust port can form a pressure difference with the outside atmosphere, and unlike the large vacuum pump, which requires lubricating oil and vacuum pump oil, it will not pollute the working medium, and has small size, low noise and maintenance-free. The advantages of hourly operation, so the micro vacuum pump is used as a power device, widely used in gas sampling, gas circulation, vacuum adsorption, accelerated filtration, automotive vacuum boosting, etc., and has been widely used in medical, health, scientific research, environmental protection and other fields.