Temperature compensated combustible gas detecting and alarming system based on alarming protection

A gas detection alarm, temperature compensation technology, applied in alarms, emergency protection circuit devices for limiting overcurrent/overvoltage, emergency protection circuit devices, etc., can solve the problem of high malfunction rate and eliminate surge voltage , the effect of high sensitivity
CN107742402AInactive Publication Date: 2018-02-27CHENGDU CHUANGTU TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU CHUANGTU TECH
Publication Date
2018-02-27
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a temperature-compensated combustible gas detection and alarm system based on alarm protection, which is characterized in that it is mainly composed of a control chip U3, a triode VT1, a gas sensor Q, and a P pole connected to the 2Y pin of the control chip U3, The N pole is composed of a diode D7 connected to the base of the triode VT1, etc. The present invention sends out an alarm sound when the concentration of combustible gas is too high, its sensitivity is high, and it can effectively play a warning role; meanwhile, the present invention can adjust the alarm threshold value according to different environments, so as to meet the needs of use in different environments.
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Description

technical field

[0001] The invention relates to an alarm system, in particular to a temperature compensation combustible gas detection and alarm system based on alarm protection. Background technique

[0002] The popularization of gas has improved people's production efficiency and quality of life. However, in the process of using gas, accidents such as gas explosions and poisonings caused by gas leakage, exhaust gas and other reasons occur from time to time, which have brought serious threats to people's lives and property safety. Therefore, the safe use of gas has always been the top priority of the gas authority. The gas sensor can effectively detect the presence of the gas to be detected in the environment. It forms a detection and alarm system through an interface circuit. When a gas leak occurs, it can alarm in time to avoid accidents. However, the sensitivity of the existing gas alarm system is low, and it cannot play a good warning role. SUMMARY OF THE INVENTION ...

Claims

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