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<blockquote data-quote="dennishoddy" data-source="post: 4279672" data-attributes="member: 5412"><p>The boiler is 12 stories tall. The induced draft fans were powered by 9000 horsepower electric motors that create a negative pressure in the boiler so the fire didn't come out and burn your face off. It's actually very little negative pressure but keeps it inside the boiler and moving through the superheaters and into the Fly ash collection system. </p><p>There are forced draft fans that are 8000 horsepower to start the movement of air through the boiler with the ID fans moving slightly faster to create the vacuum. Very sensitive electronics monitored that vacuum level with triple redundancy to make sure it was correct, but there were fawk ups in the old electrical system that has been corrected by the new electronic computer driven system that 4 of us installed in both units after major overhauls after a couple years of prep work to make it seamless. </p><p>Under the old system, I was back at the plant after a 10 hour shift to troubleshoot a problem on the boiler at 2am or so. </p><p>The ID fan that controls the vacuum tripped offline and flames shot out 20' from every orifice on the boiler. We were on the 10th or something floor, way up and had to run to get away. The system shut down the unit but it took a minute or two before the fans could spool down and the fire go back into the boiler. No way to get to the stairways to get down. </p><p>I have so many freeking stories about that power plant. We were like the basturd stepchild of OG&E without their corporate bullshat because we were so far away from OKC Corporate. </p><p>We did things that would probably get people fired in other businesses with the bosses patting us on the back. Almost perfect safety record.</p><p>Been gone for many years and met a young man that I mentored that is still there today. He said I would not like it there and likely not make it as they have gone full safety to the point one can't do their job anymore. What took an hour to do in the past takes two days now.</p></blockquote><p></p>
[QUOTE="dennishoddy, post: 4279672, member: 5412"] The boiler is 12 stories tall. The induced draft fans were powered by 9000 horsepower electric motors that create a negative pressure in the boiler so the fire didn't come out and burn your face off. It's actually very little negative pressure but keeps it inside the boiler and moving through the superheaters and into the Fly ash collection system. There are forced draft fans that are 8000 horsepower to start the movement of air through the boiler with the ID fans moving slightly faster to create the vacuum. Very sensitive electronics monitored that vacuum level with triple redundancy to make sure it was correct, but there were fawk ups in the old electrical system that has been corrected by the new electronic computer driven system that 4 of us installed in both units after major overhauls after a couple years of prep work to make it seamless. Under the old system, I was back at the plant after a 10 hour shift to troubleshoot a problem on the boiler at 2am or so. The ID fan that controls the vacuum tripped offline and flames shot out 20' from every orifice on the boiler. We were on the 10th or something floor, way up and had to run to get away. The system shut down the unit but it took a minute or two before the fans could spool down and the fire go back into the boiler. No way to get to the stairways to get down. I have so many freeking stories about that power plant. We were like the basturd stepchild of OG&E without their corporate bullshat because we were so far away from OKC Corporate. We did things that would probably get people fired in other businesses with the bosses patting us on the back. Almost perfect safety record. Been gone for many years and met a young man that I mentored that is still there today. He said I would not like it there and likely not make it as they have gone full safety to the point one can't do their job anymore. What took an hour to do in the past takes two days now. [/QUOTE]
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