Power Plant Boiler Feed Water Pump

Boiler feed pump for power plant operation.

Power plant boiler feed water pump.

Boiler feed water pump pumps the water at high pressure into the boiler from the feed water tank. Boiler feed pump take the suction from the deaerator and send the water to the boiler in starting of the boiler light up we take the boiler feed pump. It impels the fw with requisite pressure that dictates the working or operating point of steam generation. The double casing is also called barrel type.

We can say it is a heart of boiler. Today we discuss about the boiler feed pump it s a very critical component each and every power plant industry. Swapan basu ajay kumar debnath in power plant instrumentation and control handbook 2015. Among various boiler feed water pumps this pump is adopted for high pressure and high temperature application as in the subcritial steam power generation.

Pre heating feed water heaters using extracted steam from the turbine adds a part of the sensible heat even before the water enters the boiler. The pump is akin to the heart in the human body. These pumps are normally high pressure units that take suction from a condensate return system and can be of the centrifugal pump type or positive displacement type. Often two steam turbine driven turbo pump and two electric feedwater pumps are used.

To ensure a high enough head and pressure boiler feed pumps have been arranged in series multistage pumps. This is the multi stage pump having the double casing the inner casing contained in the outer casing. The outlet of a deaerator is connected to the boiler feed pump bfp suction and from there to the popular term of the working fluid feedwater to reach the boiler proper. Boiler feed water pumps are commonly centrifugal pumps.