Gas probe protection structure
A technology for protecting structures and gas probes, which is applied in the analysis of gas mixtures, air quality improvement, instruments, etc. It can solve the problems of affecting calibration efficiency, long zeroing time, and poor gas permeability of sensors, so as to speed up response time and strengthen gas exchange. , the effect of shortening the zeroing time
Active Publication Date: 2022-05-27
TIANDI CHANGZHOU AUTOMATION +1
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Problems solved by technology
The zero return speed of the gas sensor is mainly affected by the air permeability and cavity structure. The existing sensor has poor air permeability, which leads to a long time for zero return, which increases the waiting time of the calibration staff and affects the calibration efficiency. In addition, due to the coal mine The environmental conditions in the environment are relatively poor, and the existing coal mine gas detection devices have poor waterproof performance. The common scheme of using the casing waterproof and seal waterproof will affect the air permeability of the gas detection device, resulting in poor air permeability. Therefore, the common use of the cover Case and seal waterproofing schemes are not applicable
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[0046] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.
[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are...
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The invention relates to the technical field of gas probes, in particular to a gas probe protection structure which comprises a single seat, a probe body, an inner connecting seat and a cover plate, a cavity is formed in the single seat, a gas cavity is formed in the probe body, a sensor probe is mounted in the gas cavity, and the probe body is sleeved with the inner connecting seat; the cover plate is fixedly connected with the inner connecting seat; an air inlet channel is arranged at the lower end of the inner connecting seat; an air outlet channel is arranged in the single seat; the air inlet channel and the air outlet channel are communicated and form a multi-labyrinth waterproof channel, and the multi-labyrinth waterproof channel weakens kinetic energy of water flow and water drops in a multi-layer mode so as to block the water flow and the water drops. According to the gas probe protection structure, the gas inlet channel and the gas outlet channel can accelerate the response time of the gas sensor and shorten the zeroing time of the gas sensor, and the multiple labyrinth waterproof channel can block water flow and water drops and protect the sensor probe in the gas cavity.
Description
technical field [0001] The invention belongs to the technical field of gas probes, in particular to a gas probe protection structure. Background technique [0002] At present, gas detection devices generally use electrochemistry, carrier catalytic elements, and optical elements as measurement units. The measurement unit (sensor probe), as the most critical precision component in the gas detection device, is easily affected by vibration, which leads to the degradation of the detection sensitivity, measurement error, response time and other performance of the sensor. Therefore, new requirements are put forward for the anti-vibration design of the air chamber. [0003] In typical application scenarios of underground coal mines, due to natural water hazards, hydraulic flushing equipment is more common. The industry standard of coal mine gas detection device usually requires that the protection level of the product is not lower than IP65 (protection against low pressure water j...
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IPC IPC(8): G01N33/00
CPCG01N33/0004Y02A50/20
Inventor 顾仁勇蒋泽顾巧明郝叶军王璐武福生纪亚强吴浩然高文平席宇轩程一峰吴文辉
Owner TIANDI CHANGZHOU AUTOMATION