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公开(公告)号：EP1068502A4
公开(公告)日：2003-04-02
申请号：EP99906902
申请日：1999-02-10
申请人： BETZDEARBORN INC
发明人： CHEN HAIWEN , HONG KE , GUNTHER JOHN C
CPC分类号： F22B37/421 , G01M3/228
摘要： Methods and apparatus are provided for detection of leaks in boilers (10) containing a temperature control liquid (12) which is supplemented with feedwater and removed as blowdown. The methods include measuring rates associated with the feedwater supplementation and blowdown (18), adding a tracer to the temperature control liquid, determining the change in rate of the feedwater supplementation, determining the mass of the temperature control liquid, deriving the change in concentration of the chemical tracer in the temperature control liquid, calculating the unaccounted for water rate and comparing this rate with zero to determine if a leak condition is present.
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公开(公告)号：EP1017977A4
公开(公告)日：2003-04-02
申请号：EP98935826
申请日：1998-07-21
申请人： BETZDEARBORN INC
发明人： CHEN HAIWEN , BURGMAYER PAUL R , HONG KE
CPC分类号： G01M3/32 , F22B37/421 , G01M3/3227
摘要： Methods and apparatus are provided for detection of leaks in boilers (14) containing temperature control liquid which is supplemented with feedwater (36) and removed as blowdown (26), main steam and sootblower steam. In a preferred embodiment, the boiler has an automatic liquid level control mechanism. The methods include measuring rates associated with feedwater supplementation and removal rates, correcting the offsets between the supplementation and removal rates, determining the unaccounted for water rate, and comparing the unaccounted for water rate with zero to determine if a leak condition is present.
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