We are a manufacturer, exporter and supplier of Boiler Feed Pumps in Bangalore, India. Boiler Feed Water pumps is used to clean fresh water or steam condensate into a steam boiler. The function of boiler feed pump is delivery water from feed water tank to steam drum , supplies spray water that controls the temperature of super-heater, re-heater and auxiliary steam. Boiler feed water pumps includes high head, low flow pumps. Therefore, multistage pumps is a common choice when you really need boiler feed pumps.
Boiler feed pumps can be designed with 2-stages of pressure.
Booster Pump: Booster Pump is one of the best pump and it is very cheap. Booster Pump can be located at the up stream side. It is very risky to get water cavitation when feed water tank get lost of pressure. If the feed water pump can not be located high enough above boiler feed pump to develop a high enough above boiler feed pump to develop a high enough NPSH.
Main Pump: It is very expensive and used to injecting cold water into the pump.
Boiler feed pumps controls the steam drum level by using a single element and three elements.
Single Element: Single element controls the steam drum level only when reading changed by discharging control valve. Due to drum pressure or main steam pressure, the rotating speed will not change. Rotating speed of the pump maintains the pump discharge pressure 10 bar above than steam drum pressure.
Three Elements: Three elements controls the level by reading feed water flow, main steam flow and level of steam drum by speed of pump and it adjusted by fluid coupling.Drum pressure and main steam pressure will be increase proportional with the load only when power station is synchronized. This is the right time to change single element control to three element controls by open main discharge and shut discharge control valve. By speed, adjust the flow of the pump and maintains the pump discharge pressure 10 bar above steam drum pressure.
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Phone: +91 98453 24047