Multistage boiler feed pump is a common water supply equipment used in conjunction with the boiler. The maintenance and operation personnel of the equipment should know the relevant basic operation technology, such as how to start up, check during operation to ensure normal operation, how to stop, etc. The Zoomlian Pump has explained this one by one:
Start of multistage boiler feed water pump
1, the multi-stage boiler feed water pump when starting matters
a, the pump transmission medium temperature is higher (common configuration temperature <150℃);
b. Observe the indicator of pressure gauge and switch when starting, so as to adjust;
c. After the pump starts, do not make the spit valve close or close for a long time, otherwise the liquid in the pump will overheat.
2. Starting steps of multi-stage boiler feed water pump
A. Before starting (according to the preceding steps);
b. Open the suction valve of the pump and the valve of the water seal pipe;
c. Close the spit pipe so that the pump is filled with liquid;
D. Starting motor, and then open the valve of the pipe. Multistage boiler feed water pump operation check pump operation, according to the multistage boiler feed water pump starting procedure at regular intervals to check the instrument, in order to determine whether the pump work is normal, but also to check the pump speed, in addition, monitor the pump flow, head, temperature and lubrication. Pump in the event of failure, should stop the pump, and refer to the troubleshooting table for maintenance. Multi-stage boiler feed water shutdown
First the pump out of the valve fire to the minimum flow, but never allowed to close the pump suction valve; Then turn off the motor; Finally close the pump spit valve.