| 摘要 |
<p>A gas monitoring system for a kitchen environment in a house and the like which is supplied with gas from a pressurized gas container (3) or from a public gas supply to sense a possibly occurring gas leakage. The system comprises a valve (9) controlling the flow of gas from the container (3) to a cooking range. Leaked gas is detected by a sensor (5) which activates a visual (16,17) and an audible alarm (19) and which operates said valve (9) to terminate gas flow. The electronic alarm circuit is an integrated circuit, so that it can be located in a small hermetically sealed container (7), together with the power supply (12). The alarms stay on even after the gas leaked has been removed, until the system is reset by a manual switch (15). A manual override is provided to allow gas flow in the event of power failure or system failure in areas where service may be delayed. <IMAGE></p> |
