发明名称 |
BURNER FLASHBACK DETECTION AND SYSTEM SHUTDOWN APPARATUS |
摘要 |
A fuel-fired water heater is provided with a premixing type main burner and an associated pilot burner for igniting it. A specially designed protective system is operative to detect a flame flashback burning condition in the main burner and responsively shut down the water heater. In one embodiment thereof, the protective system uses main burner body heat to melt a portion of a fuel supply line connected to the pilot burner during a flame flashback condition in the main burner. Such melting responsively causes an associated fuel supply valve to close and terminate water heater operation. In a second protective system embodiment a normally closed pressure switch is opened, thereby shutting down the water heater, when the switch detects a pressure indicative of a flame flashback condition in the main burner.
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申请公布号 |
CA2628762(A1) |
申请公布日期 |
2008.10.12 |
申请号 |
CA20082628762 |
申请日期 |
2008.04.04 |
申请人 |
RHEEM MANUFACTURING COMPANY |
发明人 |
HARRIGILL, WILLIAM T.;PEART, JACOB A.;ELDER, GARY A.;HALL, WILLIAM J. |
分类号 |
F23K5/16;F23N5/24 |
主分类号 |
F23K5/16 |
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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