The vacuum pump which uses
direct current to provide electric energy is called direct current oil-free
vacuum pump. DC vacuum pump has 5V, 12V, 24V power supply. The volume of 5V, 12V
vacuum pump or 24V DC vacuum pump is very small, so it is called micro vacuum
pump. The advantage of DC power supply is to avoid motor drive, so as to reduce
the power consumption. The power consumption is weak to MA (MA). The system in
the pump is integrated, and the weak current automatic control system is
adopted, so that the vacuum pump is completely free of manual control, achieving
more accurate and intelligent effect.
The micro DC vacuum pump mainly uses
the circular motion of the motor to make the diaphragm inside the pump do
reciprocating motion through the mechanical device, so as to compress and
stretch the air in the pump cavity with a fixed volume to form a vacuum
(negative pressure), which produces a pressure difference between the pump
suction port and the external atmospheric pressure. Under the effect of the
pressure difference, the gas is pressed (sucked) into the pump cavity, and then
discharged from the exhaust port.
Micro vacuum pump has high requirements for
air tightness, generally in 10 ^ - 7pam ^ 3 / S (10 minus 7 cubic meters per
second) can meet customer requirements for air tightness applications: such as
laboratory rare gas analysis, circulation, inspection, etc. The miniature vacuum
pump adopts brushless motor to adapt to alternating load, and its service life
can be up to thousands of hours (full load, 24-hour continuous test). If it is
used intermittently, its service life can be up to 5000-8000 hours.
Oil Booster vacuum system in massive centrifuge to accelerate rockets and send them into space
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