Combustible gas leakage alarm

A gas leakage and alarm technology, applied in the direction of alarms, instruments, material resistance, etc., can solve the problems of narrow adaptability, inability to adjust, increased failure rate, etc., to avoid false alarms and failures, good alarm effect, and avoid false alarms. police effect

Inactive Publication Date: 2009-12-09
BEIJING UNION UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the gas leakage alarm device came into being, but some of the current gas leakage alarms can only alarm for one or two types of gas, and cannot be adjusted, so the scope of application is narrow; some are affected by the interference of smoke and various miscellaneous gases in the kitchen. Misoperation or gas-sensing detection components are polluted by oil fumes and fail to operate; some have anti-interference temperature compensation circuits, but the circuits are complicated, which increases the failure rate. In fact, the purpose of reducing misoperations cannot be achieved, and the cost is relatively high. ; Some are integrated with stoves, which are expensive, and the replacement cost for users is too high, so it is not easy to promote

Method used

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  • Combustible gas leakage alarm

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Embodiment approach

[0036] All components are assembled on a printed circuit, fixed in a plastic case. Make a round hole on the side of the plastic box, and lead the gas detector out from the round hole. When debugging, connect the plug to the 220V mains, put it near the gas stove, turn on the gas stove, and let the gas burn fully. At this time, the green light of the two-color LED is lit, and the speaker does not make a sound. Then, turn on the gas stove so that it does not burn. After a few seconds, the red light of the two-color LED is lit, and at the same time, the speaker emits a "beep...beep" alarm sound. If the above situation does not appear, adjust W1 and W2 to make the circuit work normally.

[0037] Make a barrel-shaped buckle cover according to the shape of the probe head of the gas sensor, with a hollow in the middle of the buckle cover, and cover the cavity with filter paper inside the buckle cover. The filter paper can be qualitative filter paper or anti-sludge non-woven fabric u...

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Abstract

The invention relates to a combustible gas leakage alarm, belonging to the field of combustible gas safety detection. A combustible gas sensor can be used for detecting the gas leakage, and the detection results are converted into the change of voltage. Then, an acoustic, optical and electric warning circuit can be controlled by a comparison circuit, an amplitude limiting circuit, etc. When gas leakage occurs, the user is prompted by the combustible gas leakage alarm to take measures, so that accident is prevented. According to the service condition, threshold can be flexibly set and adjusted, thus being higher in accuracy.

Description

technical field [0001] The invention relates to a combustible gas leakage alarm and belongs to the field of combustible gas safety detection. Background technique [0002] With the continuous improvement of people's living standards, gas, natural gas, petroleum gas, etc. have been widely used in households. Due to factors such as intermittent gas supply, improper use and storage, and leakage of pipelines and gas appliances, fires, explosions, poisoning, etc. Accidents such as deaths continue to occur. Therefore, the gas leakage alarm device came into being, but some of the current gas leakage alarms can only alarm for one or two types of gas, and cannot be adjusted, so the scope of application is narrow; some are affected by the interference of smoke and various miscellaneous gases in the kitchen. Misoperation or gas-sensing detection components are polluted by oil fumes and fail to operate; some have anti-interference temperature compensation circuits, but the circuits are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/16G01N27/04
Inventor 寇玉民赵飞袁峥
Owner BEIJING UNION UNIVERSITY
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