Document of boiler commissioning

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Objective Of Boiler Commissioning

• It is a systematic procedure used after completion of erection in making the Boiler and its auxiliaries available for safe, smooth and reliable Operation.

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AIR LEAK TEST

• Air leak test is an erection activity and is conducted before conducting the Hydro test of boiler. The aim of air leak test is to ensure that erection of pressure parts is completed.

• Air leak test is conducted by introducing air into the boiler pressure parts at a pressure of approximately 8 ksc and the entire boiler pressure parts are checked manually for any leakage.

Major events in Boiler Commissioning

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01.Air leakage test.

02.Hydro testing of boiler.

03.Readiness of Boiler auxiliaries.

04.Gas distribution test.

05.Boiler light up

06.Alkali boil-out and first stage passivation.

07.Acid cleaning and second stage passivation.

08.Steam blowing of critical piping.

09.Safety valve floating.

10.Coal firing

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