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Re: LOW WATER CONDITION


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Posted by Mike on April 28, 2002 at 15:13:51:

In Reply to: Re: LOW WATER CONDITION posted by Mike on April 28, 2002 at 15:08:53:

: : You seem to be following sensible and published procedure. My greatest concern is if a feedwater valve pops open to feed water while a surface is red; so I would be inclined to turn off the water source immediately and the fuel. If they are off within a second or two, then the procedure is within real time limits; but dropping pressure from open process lines may allow the feed to pop open. I would not turn off the induced draft fan before a cautious purge timing is complete. I wonder why the fuel does not shut down automatically from low water.

All of the controls on these machines are working correctly. I am in the process of writing & posting procedures and I want to make sure that I am correct before I post them. The reason for shutting off the blower fan after I secure the fuel, feedwater, and close teh main steam stop vlv. is so that the boiler will cool slowly.


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