Search

CN-224216675-U - Carbon monoxide concentration detection sensor for mining drainage pipeline

CN224216675UCN 224216675 UCN224216675 UCN 224216675UCN-224216675-U

Abstract

The utility model discloses a carbon monoxide concentration detection sensor of a mining extraction pipeline, which comprises an outer shell of a carbon monoxide concentration detection device, wherein the input end of the outer shell is connected with the extraction pipeline through an air inlet pipe, a detection air chamber is arranged between the input end of the outer shell and the air inlet pipe, and a steam-water separation assembly is arranged below the detection air chamber in the air inlet pipe, so that the outer shell carries out steam-water separation treatment on gas extracted from the extraction pipeline through the steam-water separation assembly and sends the gas to the detection air chamber. According to the utility model, the steam-water separation assembly is arranged in the air inlet pipe, so that the water vapor in the pumping pipeline is effectively separated, the air entering the detection air chamber is ensured to be clean and dry, the defect of the traditional diffusion air chamber sampling mode in a humid environment is overcome, and the stability and reliability of air sampling are improved.

Inventors

  • CHEN DAIWEI
  • LIU YONGBIN
  • Teng Libao
  • QIAN ZHENGFENG
  • TAO JIAJUN

Assignees

  • 镇江中煤电子有限公司

Dates

Publication Date
20260508
Application Date
20250514

Claims (8)

  1. 1. The carbon monoxide concentration detection sensor for the mining extraction pipeline is characterized by comprising an outer shell (1) of a carbon monoxide concentration detection device, wherein the input end of the outer shell (1) is connected with the extraction pipeline through an air inlet pipe (2); A detection air chamber (3) is arranged between the input end of the outer shell (1) and the air inlet pipe (2), and a steam-water separation component (4) is arranged below the detection air chamber (3) in the air inlet pipe (2), so that the outer shell (1) carries out steam-water separation treatment on gas which is sampled and inspected from the pumping pipeline through the steam-water separation component (4) and is led to the detection air chamber (3).
  2. 2. The mining extraction pipeline carbon monoxide concentration detection sensor according to claim 1, wherein the steam-water separation assembly (4) comprises an upper end cover (41) arranged on the upper portion of the air inlet pipe (2) and a lower end cover (42) arranged on the lower portion of the air inlet pipe (2), an air outlet pipe (43) is arranged between the upper end cover (41) and the lower end cover (42), an air inlet pipe joint (44) and an air outlet pipe joint (45) are arranged at the upper end cover (41), and the output end of the air outlet pipe joint (45) is connected with the input end of the air outlet pipe (43).
  3. 3. The mining extraction pipeline carbon monoxide concentration detection sensor according to claim 2, wherein an air inlet (21) is formed in the lower portion of the air inlet pipe (2), an air outlet (22) is formed in one side, away from the air inlet (21), of the air inlet pipe (2), and the air outlet (22) is communicated with the end portion of the air outlet pipe (43) so that air in the air outlet pipe (43) is discharged through the air outlet (22).
  4. 4. The sensor for detecting carbon monoxide concentration of mining drainage pipeline according to claim 3, wherein the inside of the air inlet pipe joint (44) and the inside of the air outlet pipe joint (45) are respectively provided with a filter body, the filter bodies are powder metallurgy sheets, the air inlet pipe joint (44) and the air outlet pipe joint (45) are respectively positioned inside the detection air chamber (3), and the air inlet pipe joint (44) and the air outlet pipe joint (45) are mutually communicated.
  5. 5. The mining extraction pipeline carbon monoxide concentration detection sensor according to claim 4, wherein a control circuit board (5) is arranged in the outer shell (1), the control circuit board (5) comprises a controller, a detection module, a communication module, a display module and an alarm module, and the detection module, the communication module, the display module and the alarm module are all connected with the controller; The detection module comprises a carbon monoxide sensing element (6) arranged in the detection air chamber (3), the carbon monoxide sensing element (6) is electrically connected with the controller through a signal acquisition and amplification circuit, and the signal acquisition and amplification circuit comprises an amplifier and a filter and is used for amplifying and filtering signals output by the carbon monoxide sensing element (6); And the negative end of the signal acquisition and amplification circuit is provided with a temperature and pressure compensation circuit, and the temperature and pressure compensation circuit comprises a temperature sensor and is used for measuring the temperature of the detection air chamber (3) and correcting the output of the carbon monoxide sensing element (6).
  6. 6. The mining extraction pipeline carbon monoxide concentration detection sensor according to claim 5, wherein the communication module comprises an RS485 communication unit and a CAN communication unit, and an intrinsic safety communication interface (7) connected with the communication module is arranged on the peripheral side of the outer shell (1) so that the RS485 communication unit and the CAN communication unit are externally connected through the intrinsic safety communication interface (7).
  7. 7. The sensor for detecting carbon monoxide concentration in a mining drainage pipeline according to claim 6, wherein a display window (8) is formed in the side of the outer shell (1), the display module comprises a display screen (9) connected with the control circuit board (5), and the display screen (9) is located in the display window (8).
  8. 8. The sensor for detecting carbon monoxide concentration in a mining drainage pipeline according to claim 7, wherein the alarm module comprises a buzzer (10) and an alarm lamp (11) which are arranged at the lower part of the shell, wherein the buzzer (10) and the alarm lamp (11) are electrically connected with the control circuit board (5), so that when the detected carbon monoxide concentration exceeds a preset threshold value, the control circuit board (5) controls the buzzer (10) to give out an audible alarm, and simultaneously controls the alarm lamp (11) to give out an optical alarm.

Description

Carbon monoxide concentration detection sensor for mining drainage pipeline Technical Field The utility model relates to a carbon monoxide concentration detection sensor for a mining drainage pipeline. Background In the safety production system of the coal mine, the method has 12 guidelines of 'first pumping and then sampling, monitoring and controlling and wind fixed production' for the treatment of toxic, harmful, inflammable and explosive gas. Carbon monoxide is one of the products of gas combustion or explosion and is also a marker gas for spontaneous combustion of coal. The concentration of carbon monoxide is monitored in the gas drainage pipeline, so that whether abnormal conditions exist in the gas drainage process or not can be known in time, and if the abnormal conditions exist, the gas leakage and the combustion occur or not. Carbon monoxide is toxic and when it accumulates to a certain concentration in the pipeline, it may have an effect on the operation of the extraction equipment and even cause damage to the equipment. By monitoring the concentration of carbon monoxide, measures can be taken in time to prevent equipment from being damaged due to carbon monoxide poisoning. With the continuous development of sensor technology, the performance of the carbon monoxide sensor is greatly improved. The carbon monoxide sensor based on the electrochemical principle has the advantages of high sensitivity, simple structure, low power consumption and the like, and can accurately detect low-concentration carbon monoxide gas in the gas drainage pipeline. Meanwhile, the stability and the reliability of the sensor are also improved continuously, the sensor can adapt to complex working environments in coal mines, and technical support is provided for real-time monitoring of carbon monoxide. The traditional carbon monoxide concentration detection mostly adopts a diffusion air chamber sampling mode to detect the carbon monoxide concentration, but the traditional carbon monoxide concentration detection is only suitable for roadway environments with low wind speed, and cannot meet the sampling requirements of humid and wind speed atmosphere, so that the carbon monoxide concentration detection sensor for the mining drainage pipeline is provided. Disclosure of utility model The utility model aims to provide a carbon monoxide concentration detection sensor for a mining drainage pipeline, which aims to solve the problems that in the background technology, diffusion air chamber sampling is only suitable for roadway environments with low wind speed and cannot meet the requirements of humidity and wind speed and atmosphere sampling. In order to solve the technical problems, the utility model provides the technical scheme that the carbon monoxide concentration detection sensor of the mining extraction pipeline comprises an outer shell of a carbon monoxide concentration detection device, wherein the input end of the outer shell is connected with the extraction pipeline through an air inlet pipe; A detection air chamber is arranged between the input end of the outer shell and the air inlet pipe, and a steam-water separation component is arranged below the detection air chamber in the air inlet pipe, so that the outer shell carries out steam-water separation treatment on gas sampled from the pumping pipeline through the steam-water separation component and guides the gas to the detection air chamber. Preferably, the steam-water separation assembly comprises an upper end cover arranged on the upper portion of the air inlet pipe and a lower end cover arranged on the lower portion of the air inlet pipe, an air outlet pipe is arranged between the upper end cover and the lower end cover, an air inlet pipe joint and an air outlet pipe joint are arranged at the upper end cover, and the output end of the air outlet pipe joint is connected with the input end of the air outlet pipe. Preferably, the lower part of the air inlet pipe is provided with an air inlet, one side of the air inlet pipe, which is away from the air inlet, is provided with an air outlet, and the air outlet is communicated with the end part of the air outlet pipe, so that the air in the air outlet pipe is discharged through the air outlet. Preferably, the inside of the inlet pipe joint and the outlet pipe joint is provided with a filter body, the filter body is a powder metallurgy sheet, the inlet pipe joint and the outlet pipe joint are both positioned inside the detection air chamber, and the inlet pipe joint and the outlet pipe joint are mutually communicated. Preferably, a control circuit board is arranged in the outer shell, the control circuit board comprises a controller, a detection module, a communication module, a display module and an alarm module, and the detection module, the communication module, the display module and the alarm module are all connected with the controller; The detection module comprises a carbon monoxide sensing element arranged in the