Mining flame-proof and intrinsically safe display screen
An intrinsically safe, display technology, applied in the display field, can solve problems such as explosion pressure overlap, prevent missed detection, and improve detection accuracy.
Pending Publication Date: 2022-04-15
山西八方电气股份有限公司
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Problems solved by technology
[0003] Due to the risk of gas, mine dust and other explosions in the mine, the intrinsically safe display screens used in the mine must meet the explosion-proof standards before they can be used in the mine. The rear shell of the existing display screen will be equipped with an explosion-proof chamber. , to play the role of flameproof, but with long-term use, if there is air leakage or penetration between the flameproof chambers, a multi-cavity structure will be formed between the flameproof chambers, so that once an explosion occurs , there will be a phenomenon of overlapping explosion pressure
Method used
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Embodiment 1
[0029] Embodiment 1, when the display screen 3 is used under the mine, the display screen 3 can cool down by the cooling assembly, and the cooling of the cooling assembly will flow the coolant to form a circulating circuit flow, thereby The heat of the display screen 3 is taken away to achieve the purpose of cooling the display screen 3, and the cooling assembly is returned by one of the return tube 10, the corresponding interrupt chamber 21 is passed, due to the addition of a fluorescent agent in cooling water. And, the return pipe 10 uses a transparent material, so that the cooling water is exposed to the explosion chamber 21, it will be highlighted. At this time, the detection head 22 in the other interrupt chamber 21 will capture the light, and due to the interruption cavity 21 It should be a closed dark environment, so there is a little light, it will be more obvious. When the detection head 22 detects light, there is a slit between the two septum cavity 21 or penetration, so...
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The invention discloses a mining flame-proof and intrinsically safe display screen which comprises a machine shell, a bottom shell and a display screen body, the bottom shell and the display screen body are installed on the machine shell, two flame-proof cavities are formed in the bottom shell, and the mining flame-proof and intrinsically safe display screen further comprises a detection assembly used for detecting the position between the two flame-proof cavities; the detection assembly comprises two return pipes penetrating into the two explosion-proof cavities respectively, the two return pipes are communicated with a cooling assembly for performing liquid cooling on the display screen, the two return pipes are alternately communicated with the cooling assembly, and a fluorescent agent is added into cooling water of the cooling assembly. Detection heads capable of capturing light are mounted on the inner walls of the two explosion-proof cavities, and the return pipe is made of a transparent material. Through the liquid-cooled cooling assembly, on one hand, the display screen can be cooled, on the other hand, through backflow of the backflow pipe, the explosion-proof performance of the explosion-proof cavity can be subjected to dual detection, the phenomenon of missing detection is prevented, and the detection accuracy is improved.
Description
Technical field [0001] The present invention relates to the field of display, and is specifically a mining septum and an essential safety display screen. Background technique [0002] The display is a tool that displays a certain electronic file to display on the screen through a specific transmission device, and the mine display is applied to the mine or coal mining, which is a terminal device displayed in the downhole video, which is convenient for the well. Underground interworking information. [0003] Due to the risk of explosion of gas, mine, there is a risk of explosion, in the mine, the essential safety display in the mine must meet the explosion-proof criteria can be used under the well, and the existing display can be set in the rear shell. It is used to play an explosion, but with a long time, if there is a leakage between the interval blasting cavity or penetration, a multi-cavity structure is formed between the septum cavity, so once an explosion occurs. It will prod...
Claims
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Login to View More IPC IPC(8): G01N3/26G01N21/64G09F9/00
Inventor 刘向东郑文君庞栋巍
Owner 山西八方电气股份有限公司