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Posted by Vern on March 27, 2002 at 07:23:48:
In Reply to: How fast can we get our boiler started? posted by Gary Grimes on March 26, 2002 at 17:42:31:
: I am working with a small oil refinery in the LA area that is installing a cogeneration system. The local air quality agency will not let us fire the cogen system concurrent with our backup boilers. Therefore, if the cogen system trips offline, we need to start up our Cleaver Brooks watertube backup boiler as quickly as possible to minimize problems in the refinery. Some of our people think it will take 3-4 hours to bring the backup boiler up to speed. Is this realistic? Is there any way to get us up in 15 minutes? I have heard that steam coils in the mud drum will help. Thanks for your thoughts.
In order to get your backup boiler up quickly, you need to keep it in hot standby. Don't try to get steam up in 15 minutes from a cold boiler or you can cause severe damage.
Some ways to keep in hot standby are heat it with steam from the other boiler, or maybe run the surface blowdown from the running boiler thru the standby boiler.
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