Definition and Understanding Boilers
What is Boiler? . A boiler is a closed vessel which is used to convert the water into high pressure steam. The high pressure steam so generated is used to generate power. The boiler works on the same principle as the water is heated in a closed vessel and due to heating, the water changes into steam. Due to heating of water, it gets converted into high pressure steam. . The superheated steam is then used for purpose of generation of electricity or commercial use according to the place where it has been installed.
Boiler System The boiler system is made up of basically 3 parts. Feed Water System . Steam System Fuel System
Feed Water System The feed water system provides water to the boiler and requlates it automatically to meet the steam demand. The sources of feed water are 1. Condensate or condensed steam returned from the processes. 2. Makeup water which is the raw water which must come from outside the boiler room and plant processes. Condensed Water Steam Return Water Make up Water
Feed Water System Specifications of Feed Water: 1. Hardness < o.2 ppm 2. o.15ppm< Caustic Alkanity< 0.45ppm 3. 0.45ppm< Soda Alkanity<1pprm Feed Water should be free from: a) Turbidity b) Sediments c) Organic Matter d) Oil and Grease
Steam System The steam system collects and controls the steam produced in the boiler. Steam is directed through a piping system to the point of use. Throughout the system, steam pressure is regulated using valves and checked with steam pressure gauges.
Fuel System The fuel system includes all equipment used to provide fuel to system depend on the type of fuel used in the system.
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