CJC4A methane measuring device
A measuring device and methane sensor technology, applied in the field of gas measuring devices, can solve the problems of poor sensitivity and stability, reduced safety performance, short working time, etc., and achieve the effects of good stability, convenient use and high sensitivity
Inactive Publication Date: 2015-12-09
YANGZHONG SOUTH MINE ELECTRICAL
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Problems solved by technology
Most of the carbon monoxide detection and alarm devices currently used have the disadvantages of poor sensitivity and stability, and short working hours. They are not suitable for mining in underground mines. At the same time, the detection range of dangerous gases is too small, which reduces the safety performance to a certain extent.
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[0021] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0022] The CJC4A methane detector includes a casing 3, which is provided with several screw holes 9, and the casing 3 is made of antistatic ABS engineering plastic material, and the length, width and height of the casing 3 are respectively L, D, H, the L=286.5mm, the D=218mm, the H=160.3mm, the casing 3 includes the casing cover 2 and the casing box 1, the casing cover 2 and the casing The housing box 1 is used in conjunction with a sealing gasket 14 between the housing cover 2 and the housing box 1. The surface of the housing cover 2 is provided with a warning light hole 5, a sound window 6, a display observation window 7 and a lighting lamp. Hole 8, describes that the surface of casing box 1 is provided with methane air inlet 4, power switch 15, fixing hole 12 and light switch 13, and described methane air inlet 4 is provided with methane ...
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The invention relates to a CJC4A methane measuring device which comprises a machine shell. The machine shell is provided with a plurality of screw holes. An alarm lamp hole, a sound window, a displayer observation window and an illumination lamp hole are formed in the surface of a machine shell cover. The surface of a machine shell box is provided with a methane inlet, a power supply switch, a fixing hole and an illumination lamp switch. The machine shell box is internally provided with a methane sensor, a digital-analog converter, a signal amplifier, a circuit main board, an alarm device, a power supply, an illumination lamp and an illumination lamp power supply. The circuit main board is provided with a digital displayer, an infrared receiving head, a microprocessor, a data storage chip and a wireless receiving and transmitting module. The alarm device comprises a sound alarm device body, a light alarm device body and a vibration alarm device body. The CJC4A methane measuring device has the advantages of being high in sensitivity and good in stability, and can achieve measuring and alarming of the concentration of methane under a coal mine in the range of (0.00-4.00)% CH4.
Description
technical field [0001] The invention relates to a CJC4A methane detector, which belongs to the technical field of gas measuring devices. Background technique [0002] The methane detector is an intrinsically safe instrument that can continuously detect the concentration of toxic, harmful, flammable and explosive gases in the working environment. It is suitable for explosion-proof, poisonous gas leakage rescue, underground pipelines or mines, etc. It can effectively guarantee the life safety of the staff from infringement and the production equipment from loss. Suitable for detecting the concentration of methane in ambient air. Most of the carbon monoxide detection and alarm devices currently used have the disadvantages of poor sensitivity and stability, and short working hours. They are not suitable for mining in underground mines. At the same time, the detection range of dangerous gases is relatively small, which reduces the safety performance to a certain extent. Conten...
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IPC IPC(8): G01N33/22
Inventor 袁立清
Owner YANGZHONG SOUTH MINE ELECTRICAL