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Calibration device for gas alarm

A technology for gas alarms and calibration devices, which is applied in the direction of alarms, sampling devices, instruments, etc., can solve the problems of inability to accurately determine the target gas concentration, damage the operator's personal health, and reduce the accuracy of the alarm, so as to protect personal health, Effects of preventing environmental pollution and improving safety

Inactive Publication Date: 2009-08-19
镇江英沙电器有限公司
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AI Technical Summary

Problems solved by technology

This method cannot accurately determine the target gas concentration at the time of the alarm, which reduces the accuracy of the alarm; in addition, the calibration process not only wastes a lot of target gas, pollutes the production environment, but also causes damage to the operator's personal health

Method used

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  • Calibration device for gas alarm

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Embodiment Construction

[0008] As shown in the figure, a detection box 1 is included, and the detection box is provided with a closable gas inlet 11 that can introduce target gas into the detection box and a closable exhaust port 12 that can discharge the gas in the detection box At least one gas sensor 2 for calibration with the same type and specification as the gas sensor of the gas alarm to be tested is arranged in the detection box, and the signal line of the gas sensor 2 for calibration is drawn out of the detection box. During the calibration process, the detection box is filled with a specific concentration of target gas, and the signal line of the calibration gas sensor 2 is connected to the signal input terminal of the burner alarm 3 to be calibrated, and the alarm start value of the gas alarm can be adjusted. Make it alarm the target gas higher than a specific concentration, and achieve the purpose of high-precision calibration. If multiple calibration gas sensors 2 are arranged in the det...

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Abstract

The invention relates to a detecting and debugging system of a gas alarm device, particularly to a gas alarm calibration device used for calibrating a critical value of the gas when the gas alarm starts alarming. The device comprises a detection box, wherein a closeable gas inlet which can introduce target gas into the detection box and a closeable exhaust port which can exhaust out the gas in the detection box are arranged on the detection box; and at least one gas sensor used for calibration which has the identical size and specification of the gas sensor of a gas alarm to be detected is arranged inside the detection box, and a signal wire of the gas sensor used for calibration is led outside the detection box. The gas alarm calibration device can accurately determine a concentration value of the target gas when the gas alarm starts alarming, and wastes no target gas in the process of calibration, thereby being pollution-free.

Description

technical field [0001] The invention relates to a detection and debugging system of a gas alarm device, in particular to a gas alarm calibration device used to calibrate the gas critical value when the gas alarm starts to alarm. Background technique [0002] Most of the existing gas alarms, including those used in coal mines, are calibrated by using a lighter in the air directly against the sensor part of the alarm, or applying target gas to the gas supply pipeline, and adjusting the potentiometer to the sound and light level at the same time. until the police. This method cannot accurately determine the target gas concentration at the time of the alarm, which reduces the accuracy of the alarm; in addition, the calibration process not only wastes a large amount of target gas, pollutes the production environment, but also causes damage to the personal health of the operator. Contents of the invention [0003] The technical problem to be solved by the present invention is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/16G01N1/24
Inventor 王超英
Owner 镇江英沙电器有限公司
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