Vacuum pump unit is a kind of high efficiency equipment, so it is widely used, but there are also some problems in use, such as low pressure, resulting in the unit can not achieve the expected use effect, affecting the normal use, so what is the cause of low pressure, how to solve it?
The main reasons for the low pressure of vacuum pump unit are as follows:
1. If the vacuum pump unit is not filled with water or properly vented, it can be checked whether the pump casing and inlet pipeline are all filled with liquid.
2. Suction head is too high, check the existing clean head.
3. The water head of the system is too high, check the water head of the system (especially the friction loss).
4. If the speed is too low, check whether the wiring of the motor is correct, whether the voltage is normal or whether the steam pressure of the turbine is normal.
5. The impeller diameter of vacuum pump unit is too small. Consult the manufacturer for the correct impeller diameter.
6. If the submergence depth of bottom valve or inlet pipe is not enough, consult the manufacturer for correct submergence depth or use baffle to eliminate eddy current.
7. The position of pressure gauge is not correct. Check whether the position is correct. Check the outlet nozzle or pipe.
8. If there is leakage in the air or inlet pipeline, check whether there is cavitation or air leakage in the inlet pipeline.
The problem of low pressure of vacuum pump unit may be the result of one or more reasons. If this problem occurs during the operation of the unit, stop the work in time for inspection, find out the cause of the problem, and then formulate a solution for the cause of the problem.
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