As for the water ring vacuum pump, to
ensure its safe and stable operation, it is for power and stability. If it
operates near the limit vacuum degree and Zui high exhaust pressure, the power
of the vacuum pump is very low, and the operation is very unstable, so it is
easy to have vibration and noise. And the water ring vacuum pump is easy to have
cavitation phenomenon, resulting in damage to pump body, impeller and other
parts, and even unable to work.
After having basic parameters, in the
process of pump selection: if the vacuum degree or exhaust pressure required by
the pump is not high, the single-stage pump can be selected preferentially; if
the vacuum degree or exhaust pressure is high, the single-stage pump is often
not satisfied, and it may be required that the pump still has large air
extraction capacity and safe air extraction function under the condition of high
vacuum degree, the double-stage pump can be selected.
If the vacuum
degree is required to be more than - 710mmhg, the water ring pump unit of gas
injector can be selected as the vacuum pumping equipment to improve the pumping
speed of the equipment under low pressure and prevent the cavitation phenomenon
of the water ring vacuum pump together. If it is only used for vacuum pump, it
is better to choose single effect pump, with simple structure, easy protection
and good cavitation resistance under high vacuum.
If still be used as
compressor perhaps, choose double effect pump more appropriate. The double
effect pump has the advantages of large air volume, small volume, active balance
of radial force, less fatigue cracking of shaft and long service life.
Direct Coupled Water Liquid Ring Vacuum Pump
Water Ring Pump
Water Ring Vacuum Pump
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