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公开(公告)号：EP1611454B1
公开(公告)日：2010-10-06
申请号：EP04757545.1
申请日：2004-03-16
发明人： HALLA, Don , DOLSON, Richard , HART, Robert, P. , LUCAS, Richard , HUTCHINSON, Ray , REID, Kent
IPC分类号： G01S1/00
CPC分类号： B67D7/3209 , B65D90/503
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公开(公告)号：EP1611454A2
公开(公告)日：2006-01-04
申请号：EP04757545.1
申请日：2004-03-16
发明人： HALLA, Don , DOLSON, Richard , HART, Robert, P. , LUCAS, Richard , HUTCHINSON, Ray , REID, Kent
IPC分类号： G01S1/00
CPC分类号： B67D7/3209 , B65D90/503
摘要： A storage tank leak detection and prevention system that detects a breach or leak in the interstitial space of a double-walled fuel storage tank (101) in a service station environment. The interstitial space is placed under a vacuum using a submersible turbine pump (15) that is also used to pump fuel to the fuel dispensers in the service station and therefore a separate vacuum generating source is not required. A sensing (46) unit and/or tank monitor (42) monitors the vacuum level in the interstitial space over time. If a significant vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum level, a catastrophic leak detection alarm is generated. If a minor vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum, a precision leak detection alarm is generated. Functional tests also ensure that the leak detection system is functioning properly.
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