Gas combustion device with safety device
First Claim
1. A gas combustion device with a safety device characterized by the provision of(a) a combustible gas sensor comprising a calcined body made of a solid ion conductive, electrolyte material, and porous electrodes attached to both surfaces of said calcined body,(b) a pilot burner sensor including a thermocouple which creates an electromotive force (e.m.f.) in response to the detection of heat of combustion flames of said gas combustion device, and(c) a safety valve connected in a gas supply line for said gas combustion device and operable in response to both the outputs from said combustible gas sensor and said pilot burner sensor.
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Abstract
The present invention discloses a gas combustion device with a safety device including a combustible gas sensor which consists of an oxygen concentration cell comprising a calcined solid ion conductive electrolyte material and porous electrodes attached to both the major surfaces of the electrolyte material. The safety valve is operated in response to both outputs from the combustible gas sensor and from a pilot burner sensor including a thermocouple or the like. When the carbon monoxide content is increased, the safety valve is automatically closed, thereby interrupting the supply of gas and consequently preventing carbon monoxide poisoning and/or gas explosion.
32 Citations
6 Claims
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1. A gas combustion device with a safety device characterized by the provision of
(a) a combustible gas sensor comprising a calcined body made of a solid ion conductive, electrolyte material, and porous electrodes attached to both surfaces of said calcined body, (b) a pilot burner sensor including a thermocouple which creates an electromotive force (e.m.f.) in response to the detection of heat of combustion flames of said gas combustion device, and (c) a safety valve connected in a gas supply line for said gas combustion device and operable in response to both the outputs from said combustible gas sensor and said pilot burner sensor.
Specification