Gas leakage alarm device for industrial waste gas treatment

A gas leakage and alarm device technology, applied in the direction of alarms, instruments, etc., can solve the problems of restricting the automatic control of harmful gases, unable to automatically control an external exhaust fan, and low trigger sensitivity, and achieves a high degree of automation, trigger sensitivity, and circuit simple structure

Inactive Publication Date: 2015-05-13
CHENGDU ZHONGKUO SCI & TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

The detectors in the prior art have many disadvantages, such as many components used, high production cost, low trigger sensitivity, bulky, not easy to carry, etc., especially the inability to automatically control the external exhaust fan, which limits the harmful Automatic control function of gas discharge

Method used

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  • Gas leakage alarm device for industrial waste gas treatment

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] Such as figure 1 Shown: the present invention includes AC power supply AC, transformer T, first diode VD1, second diode VD2, third diode VD3, fuse FU, first capacitor C1, second capacitor C2, third Capacitor C3, first resistor R1, second resistor R2, third resistor R3, fourth resistor R4, fifth resistor R5, sixth resistor R6, seventh resistor R7, eighth resistor R8, ninth resistor R9, tenth resistor Resistor R10, eleventh resistor R11, first light-emitting diode LED1, second light-emitting diode LED2, voltage regulator IC1, gas sensor QM, potentiometer RP, relay J1, first operational amplifier A1, second operational amplifier A2, second Three operational amplifiers A3, the first triode VT1, the second triode VT2 and the speaker BL, the live wire of the AC power supply AC is connected to the first end of the first winding of the transformer T, the neutral wire of the...

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Abstract

The invention discloses a gas leakage alarm device for industrial waste gas treatment, comprising an alternating-current power supply, a transformer, a first diode, a second diode, a third diode, a fuse, a first capacitor, a second capacitor, a third capacitor, first to eleventh resistors, a first light-emitting diode, a second light-emitting diode, a voltage regulator, a gas sensor, a potentiometer, a relay, a first operational amplifier, a second operational amplifier, a three operational amplifier, a first triode, a second triode, and a loudspeaker. The gas leakage alarm device for industrial waste gas treatment of the invention has the advantages of simple circuit structure, sensitive triggering, fewer elements, small size, low cost, easy manufacture, convenient carrying, high degree of automation and timely alarm, and can effectively control the opening of an external exhaust fan to achieve the purpose of exhausting harmful gases.

Description

technical field [0001] The invention relates to an alarm device, in particular to a gas leakage alarm device for industrial waste gas treatment. Background technique [0002] In the industrial waste gas treatment process, some equipment has poor airtightness due to long-term use, and the valves and flange connections on the equipment and pipelines are not well sealed, and gas leakage is prone to occur. Gas leakage may easily cause fire and explosion, seriously endangering the lives of workers. Therefore, in the industrial waste gas treatment process, the detection of leaked gas is particularly important. The detectors in the prior art have many disadvantages, such as many components used, high production cost, low trigger sensitivity, bulky, not easy to carry, etc., especially the inability to automatically control the external exhaust fan, which limits the harmful Automatic control function of gas discharge. Contents of the invention [0003] The object of the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/12
CPCG08B21/12
Inventor 张春
Owner CHENGDU ZHONGKUO SCI & TECH
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