Inspection well gas safety alarm

The utility model provides an inspection well gas safety alarm. The inspection well gas safety alarm comprises a detection circuit, a judgement circuit, an alarm indication circuit, and a power supply. The power supply is used for supplying work power for the detection circuit, the judgement circuit...

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Bibliographic Details
Main Authors LING YUN, KONG LINGSHUANG, CHEN LINLONG, ZENG HONGBING
Format Patent
LanguageChinese
English
Published 21.05.2014
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The utility model provides an inspection well gas safety alarm. The inspection well gas safety alarm comprises a detection circuit, a judgement circuit, an alarm indication circuit, and a power supply. The power supply is used for supplying work power for the detection circuit, the judgement circuit and the alarm indication circuit. The detection circuit converts the concentration of a flammable gas into a voltage and outputs the voltage to the judgement circuit; and the judgement circuit drives the alarm indication circuit to send a sound and light alarm signal when the concentration of the flammable gas exceeds a safety concentration value or the concentration of oxygen is lower than a safety concentration value. The inspection well gas safety alarm is simple in circuit, high in reliability, low in cost, and capable of being used in safety detection and alarm for inspection well gas.
Bibliography:Application Number: CN20132738025U