water ring vacuum pump unit of isolation treatment

When using the water ring vacuum pump unit, we have different treatment measures according to each different operation method, and these treatments need to pay attention to the ways and methods, which are not applicable in all cases, but we should consider the actual situation. Then let’s analyze its isolation treatment.

We should first see whether the work is normal; Whether the vacuum system has leakage points, and at the same time, check whether the vacuum system pipeline and the continuous vent pipeline of low-pressure heater are damaged, whether the vacuum destruction valve is tightly closed, whether the sealing water is normal, and whether the shaft seal steam supply pressure is normal; Check whether the shaft seal steam inlet valve, shunt valve and load relief valve are normal, whether the shaft water seal is normal, if the shaft heater fan fails or the shaft heater negative pressure is low, start the standby fan, check whether the small turbine exhaust system is normal, and if necessary, start the electric pump, stop the small turbine, and close the exhaust butterfly valve.

Check whether the sealing water of the condensate pump is normal and whether the condensate pump leaks empty; Whether the water level of condenser is too high; When the condenser vacuum drops to -87kpa, the standby water ring vacuum pump unit starts automatically, otherwise it is manually put into operation. If the vacuum continues to drop, the load should be reduced; The vacuum drops to -84kpa and the load is reduced to zero; If the vacuum drops to -81kpa, the tripping protection should act, otherwise, manually switch off and shut down.

If we want the water ring vacuum pump unit to play a greater advantage in use, we need to be patient in dealing with some operations before we can make these steps more detailed, which is also what experience says.