Composite multi-gas detector for electric power deep foundation pit operation
A detector and deep foundation pit technology, applied in the direction of air quality improvement, electrochemical variables of materials, chemical analysis by combustion, etc., can solve unreasonable and imperfect problems, achieve convenient transportation, stable performance, and high detection accuracy Effect
Pending Publication Date: 2022-08-09
STATE GRID E COMMERCE CO LTD +1
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Problems solved by technology
This kind of protection mechanism that relies on the construction personnel to detect, warn and take measures has been tested in practice and is not perfect, and there are unreasonable situations. When the construction personnel discover the danger, it may be too late.
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[0026] Please see attached Figure 1-8 As shown in the figure, this embodiment provides a composite multi-gas detector for electric deep foundation pit operations, including a detector body 1 and a retractable lifting bracket. The detector body 1 includes a casing 101, a lead wire harness 4 and An oxygen sensor 106, a methane sensor 107, a carbon monoxide sensor 108, a hydrogen sulfide sensor 109, an amplifying circuit board 110 are provided in the housing 101, and a buzzer 103, an oxygen sensor 106, and a methane sensor 107 are embedded on one side of the housing 101. , the carbon monoxide sensor 108, the hydrogen sulfide sensor 109, and the buzzer 103 are respectively electrically connected to the amplifier circuit board 110. The amplifier circuit board 110 is provided with a waterproof PG head 102 in the middle of the top of the casing 101, and one end of the lead wire harness 4 penetrates the waterproof PG head 102. After that, it is electrically connected to the amplifier...
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The invention provides a combined type multi-gas detector for electric power deep foundation pit operation, and relates to the field of electric power deep foundation pit gas detection equipment. The device comprises a detector body and further comprises a telescopic lifting support, the detector body comprises a shell, a leading-out wire harness, an oxygen sensor, a methane sensor, a carbon monoxide sensor, a hydrogen sulfide sensor and an amplification circuit board, the oxygen sensor, the methane sensor, the carbon monoxide sensor, the hydrogen sulfide sensor and the amplification circuit board are arranged in the shell, a buzzer is embedded in one side face of the shell, and a waterproof PG head is arranged in the middle of the top of the shell. One end of the leading-out wire harness penetrates into the waterproof PG head and then is electrically connected with the amplification circuit board, a hanging lug is further arranged at the top of the shell, the telescopic lifting support hangs and pulls the hanging lug through a hanging rope, and the detector body changes the spatial position along with telescopic movement and lifting movement of the telescopic lifting support. The device can replace constructors to detect the gas content in the foundation pit in real time, and when the gas content is not within a specified value range, sound-light alarm is triggered to warn operators at the bottom of the pit, so that the effect of nipping in the bud is achieved.
Description
technical field [0001] The invention relates to the field of electric power deep foundation pit gas detection equipment, in particular to a composite multi-gas detector for electric power deep foundation pit operations. Background technique [0002] In power infrastructure projects, many foundation pits have a depth of more than 6m, which are deep foundation pits, and the geology is relatively complex. Efficiency and quality safety. [0003] In the construction of deep foundation pits, due to the complex and varied geological foundation structure, it is difficult to observe and identify. Generally, the construction personnel carry gas detection and alarm devices with them and evacuate immediately after detecting insufficient oxygen or excessive harmful gases. This protection mechanism, which relies on the construction personnel to detect, give early warning and take measures, has been tested by practice and is not perfect, and there are unreasonable situations. When the con...
Claims
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IPC IPC(8): G01N27/26G01N31/12
CPCG01N27/26G01N31/12Y02A50/20
Inventor 罗鹏翟宗亮王雨辰赵凌霄
Owner STATE GRID E COMMERCE CO LTD