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Initiative absorbing type flammable and explosive gas detection alarm

A technology for flammable and explosive gas and gas detection, applied in the direction of alarms, instruments, etc., can solve the problems of delayed alarm and no alarm, and achieve the effect of strong suction ability, easy detection, and increased detection range and sensitivity.

Inactive Publication Date: 2014-02-12
FUJIAN MEIYING AUTOMATION TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The invention proposes an active absorption type flammable and explosive gas detection alarm, which solves the defect of passively waiting for flammable and explosive gas to enter the sensor in the prior art, resulting in delayed alarm or no alarm

Method used

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  • Initiative absorbing type flammable and explosive gas detection alarm

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] refer to figure 1 , an active absorption type flammable and explosive gas detection alarm, comprising a frame 1, an active suction device 2, an air intake pipe 3, a gas detection device 4, a control device 5 and an alarm device 6, and the air intake pipe 3 is fixed on the frame 1, the air inlet of the air inlet pipe 3 is larger than the air outlet, the active suction device 2 is arranged on the air inlet of the air inlet pipe 3, the gas detection device...

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Abstract

The invention provides an initiative absorbing type flammable and explosive gas detection alarm. The alarm comprises a machine frame, an initiative gas absorbing device, a gas inlet pipe, a gas detection device, a control device and a warning device, wherein the gas inlet pipe is fixed on the machine frame, a gas inlet of the gas inlet pipe is larger than a gas outlet of the gas inlet pipe, the initiative gas absorbing device is arranged on the gas inlet of the gas inlet pipe, the gas detection device is arranged on the gas outlet of the gas inlet pipe, the gas detection device is electrically connected with the control device, and the control device is electrically connected with the warning device. The initiative absorbing type flammable and explosive gas detection alarm can absorb gas initiatively, and therefore the problems that gas molecule diffusion is low in speed and random in direction during flammable and explosive gas detection are solved; due to the fact that a semiconductor gas sensitive device is adopted to serve as the gas detection device, sensitivity is high; due to the fact that an automatic amplifying circuit is added to amplify signals of the semiconductor gas sensitive device, the sensitivity of the instrument is greatly improved; furthermore, a thermostat is adopted to overcome the influence of temperature on the semiconductor gas sensitive device.

Description

technical field [0001] The invention relates to a gas detection and alarm device, in particular to an active absorption type flammable and explosive gas detection and alarm device. Background technique [0002] With the development of society, people pay more and more attention to public safety issues. For example, in the BRT incident in Xiamen, Chen Shui always brought gasoline on the bus and ignited it, causing 47 deaths and 34 injuries. Install a flammable and explosive gas detection alarm on the car, once someone carries flammable and explosive liquid and gas on the car, the alarm will alarm, which can prevent this type of accident from happening. [0003] The currently used flammable and explosive gas detection alarm is mainly composed of a sensor and an alarm. The sensor detects the flammable and explosive gas, and then sends an alarm through the alarm, which has the disadvantage of low detection sensitivity. At the same time, the passive absorption method is adopted,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/16
Inventor 董斌林燕金刘林
Owner FUJIAN MEIYING AUTOMATION TECH
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