Filtration of boiler feed water
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| Filtration of boiler feed water |
Filtration of boiler feed water
Boilers are used in power plants to generate steam which is in turn used to generate power. The water supplied to the boiler which is converted into steam is called boiler feed water. The steam produced in a boiler is condensed after use and is returned to the boiler as recovered condensate and made-up with additional fresh water or makeup water.
Boilers require high quality water to operate efficiently. The presence of impurities in feed water makes it unfit for use in the boilers. When steam is produced, the solid becomes concentrated and forms deposit at the bottom of the boiler. This leads to poor heat transfers and reduces the efficiency of the boiler. Moreover the emitted gas such as oxygen and carbon dioxide react with the metal and the boiler system which leads to boiler corrosion. Thus, to protect the boiler from such contamination, the boiler feed water should be conditioned or treated properly.
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| Filtration of boiler feed water |
Automatic Strainer Filter " IWAKO" as protection of boiler feed water pump and condenser circulating pump
Besides a defined hardness, caustic and soda alkalinity, the boiler feed water should be free from suspended solids, sediments and organic matter.
As obstruction can cause premature wear of the pumps, the Automatic Strainer Filter " IWAKO" placed upstream of the boiler feed water pump removes impurities from the boiler feed water and as such protect the pump.
After being used in the turbine, the steam is cooled down and condensed before being returned to the boiler from the hot well. As a large supply of cold water is required for the condense process, river water is often used. The Automatic Strainer Filter " IWAKO" removes the impurities of this water to protect the condenser and ancillary equipment such as circulating pump integral to the boiler feed water process and condensate recovery system.
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| self cleaning screen filter |
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| basket strainer |
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