Alarm for detecting combustible gas

Abstract

The invention discloses an alarm for detecting combustible gas, and relates to the technical field of combustible gas detection equipment. The alarm comprises a shell, a catalytic rod is arranged in the shell, a first cavity is formed in the shell, an alarm mechanism for detecting the combustible gas is arranged in the first cavity, a warning lamp is fixedly installed on the shell, a linkage mechanism used for controlling the fan to work is arranged in the shell, a fan is fixedly installed on the shell, a heat conduction mechanism used for conducting heat is arranged in the shell, and the heatconduction mechanism is fixedly connected with the output end of the linkage mechanism. The alarm is provided with the catalytic rod, a thermistor, an electromagnet, a conductive block, a magnet anda second wire, combustible gas is subjected to flameless combustion through the catalytic rod, the resistance of the thermistor is changed through generated heat to change the size of electromagnet magnetism so as to achieve communication of different warning lamps, the device is more accurate and convenient compared with direct detection through a gas sensor, and meanwhile, residue of combustiblegas is avoided.

Description

technical field [0001] The invention relates to the technical field of combustible gas detection equipment, in particular to an alarm for detecting combustible gas. Background technique [0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere (including oil field gas, gas field gas, mud volcano gas, coal bed methane, and biologically generated gas, etc.). The definition of "natural gas" that people have used for a long time is a narrow definition from the perspective of energy, which refers to the mixture of hydrocarbon and non-hydrocarbon gases naturally stored in the formation. In petroleum geology, it usually refers to oil field gas and gas field gas. Its composition is dominated by hydrocarbons and contains non-hydrocarbon gases. Natural gas is stored in underground porous rock formations, including oil field gas, gas field gas, coal bed methane, mud volc...

AI Technical Summary

Problems solved by technology

At present, most areas in my country use combustible gases such as liquefied petroleum gas and natural gas as the main energy source. However, combustible gases are flammable and explosive. Once leaked, it will not only cause damage to the human body, but also cause explosion hazards when encountering an open flame. , so it is necessary to detect the combustible gas in the room

[0003] Existing indoor combustible gas detection devices use gas-sensitive probes, which are unstable and prone to deviations, and after combustible gas detection, windows need to be manually opened for ventilation. When there is no one in the room or sleeping soundly, it is easy to fail to detect it in time Harm to the personal safety and property safety of users

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