发明名称 |
Black plant steam furnace injection |
摘要 |
A system and method for quickly cooling and de-pressurizing a boiler arrangement in the event of a plant power loss, a.k.a. a black plant condition. A steam discharge system injects steam from the steam/water circuit into the furnace, thereby both cooling components of the boiler arrangement and reducing pressure in the steam/water circuit. This reduces or eliminates the additional cost associated with providing extra capacity in a steam drum and/or an independently powered boiler water pump. The system and method is particularly useful for quickly cooling the U-beams of a circulating fluidized bed (CFB) boiler during a black plant condition. In application to boiler arrangements with a selective non-catalytic reduction (SNCR) system employing steam as a carrier for a NOx reducing agent, the steam discharge system advantageously uses the discharge nozzles of the SNCR system to inject the steam into the furnace.
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申请公布号 |
US8047162(B2) |
申请公布日期 |
2011.11.01 |
申请号 |
US20080175102 |
申请日期 |
2008.07.17 |
申请人 |
BABCOCK & WILCOX POWER GENERATION GROUP, INC. |
发明人 |
MARYAMCHIK MIKHAIL;SZMANIA MICHAEL J.;WALKER DAVID J.;WIETZKE DONALD L. |
分类号 |
B01D45/00 |
主分类号 |
B01D45/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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