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Automatic gas extraction drilling basic parameter monitoring device

A basic parameter, automatic monitoring technology, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve problems such as reducing work efficiency

Inactive Publication Date: 2014-05-28
HENAN POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

For drainage boreholes, drainage negative pressure, gas concentration, flow rate and other parameters are the most direct indicators to measure the drainage effect of the borehole. However, due to the constraints of geological conditions, technical methods and other factors, the drainage boreholes are mainly arranged underground. In the actual production process, it takes more manpower, material resources and financial resources to measure the drilling parameters on site, which greatly reduces the work efficiency

Method used

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  • Automatic gas extraction drilling basic parameter monitoring device
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Embodiment Construction

[0009] exist figure 1 , the device is divided into two parts, the black dotted box marks the downhole part, and the rest are the uphole part. When the device started to work, the PLCCPU221 (29) was powered by a 220V AC power supply (32), wherein the neutral wire end of the power supply was connected to the N (36) live wire end and pressed to the L (35). Press the start button (42), and at the same time supply power to the 24V switching power supply (19), at this moment the gas concentration detector (14), the gas pressure detector (15), and the flow detector (16) start working, and the analog quantity is detected The data are sent to three ports IN1 (9), IN2 (10), and IN3 (11), integrated by a multiplexer (8), and the analog data is converted into digital data by an analog-to-digital converter (7). At this point, the embedded controller (2) will organize the received data. When the data is too large, the EEPROM (1) will perform a transfer cache, and the data integrated by the...

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Abstract

The invention provides an automatic gas extraction drilling basic parameter monitoring device, and belongs to the field of gas extraction safety. The device can continuously and automatically monitor gas extraction drilling basic parameters in real time. According to the device, PLCCPU221 serves as a master controller, the gas extraction drilling basic parameters can be measured through a gas concentration detector, a gas pressure detector and a flow detector, analog quantity is transmitted into the master controller after being simply processed by a data collection device, and an upper computer carries out real-time data interchange through configuration software by means of a Profibus communication mode and the PLCCPU221. By means of a display screen of the upper computer, the gas extraction drilling basic parameters can be observed every five seconds. The automatic gas extraction drilling basic parameter monitoring device saves a large number of labor and materials, improves the drilling extraction rate and the gas utilization rate, and plays an important role in evaluating a gas extraction effect timely.

Description

technical field [0001] The utility model relates to an automatic monitoring device for the basic parameters of gas drainage drilling, which belongs to the safety field of gas drainage. It is a device capable of real-time, continuous, accurate and automatic monitoring of the basic parameters of gas drainage boreholes, such as negative pressure, gas concentration and flow. Background technique [0002] As a catastrophic substance, gas has the characteristics of explosiveness, suffocation, and prominence, which seriously threatens the life safety of miners and the normal production of coal mines; as a high-quality, clean, and efficient energy source, it has important development and utilization values; As a kind of greenhouse gas, if it is not treated or discharged directly into the atmosphere, it will cause serious environmental pollution and waste of resources. Therefore, strengthening gas drainage is an important method to reduce gas disasters, reduce environmental pollutio...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 鲁忠良付腾苏伟伟张书军毋虎城鲁云鹤郅富标王洪丽
Owner HENAN POLYTECHNIC UNIV
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