Underground coal seam gas content rapid measuring instrument

  The underground coal seam gas content rapid measuring instrument is designed according to the principle that the change of gas desorption speed of coal sample conforms to the power function relationship and uses the value of gas desorption characteristic index V1 to calculate the coal seam gas content and coal seam gas pressure
In the design, single chip microcomputer control technology and gas flow sensing technology are adopted
Wp-1 coal seam gas content rapid measuring instrument adopts the principle of non resistance trace gas flow measurement, so that the desorption process of coal sample is closer to the natural desorption state of coal
In order to obtain accurate measurement results, the collected data are averaged in the software, which makes the instrument have the characteristics of simple circuit, small volume, light weight, convenient carrying and simple operation
Wp-1 coal seam gas content rapid measuring instrument features the coal seam gas content measuring instrument is suitable for underground mining or heading face of coal mine to quickly measure the gas desorption amount in the coal body
It can timely grasp the distribution of gas content (W), gas pressure (P) in front of the work and the changes of important gas parameters such as outburst prevention prediction indexes K1 and K2, forming a relatively complete set of technology
Its characteristics: short determination time (the whole process is 7 minutes, 2 minutes and desorption for 5 minutes), It does not affect the work of the normal working face, and automatically completes the measurement, acquisition, calculation, storage, display, printing and other work
It is easy to operate, time-saving, labor-saving, fast and accurate
A variety of important gas parameters can be predicted by one measurement
It provides a rapid and concise measurement means and scientific basis for high production, safe production, prediction of gas emission and rational development and utilization of gas resources
Similarly, the coal seam gas content tester is also suitable for laboratory research and test
Performance index K1 & mdash; of wp-1 coal seam gas content rapid measuring instrument& mdash; Attenuation coefficient of gas desorption rate of coal sample, KT & mdash; one of the important indicators of coal seam gas risk& mdash; One of the important indicators of coal seam gas risk, ml / g
minv1 & mdash& mdash; The minute gas desorption rate of unit weight coal sample is directly related to coal seam gas content and coal seam gas pressure, ml / g
minq2 & mdash& mdash; Attenuation coefficient of gas desorption rate P & mdash& mdash; Predicted value of coal seam gas content, ml / GW & mdash& mdash; Predicted value of coal seam gas pressure, mpar & mdash& mdash; Correlation coefficient, reflecting the measurement results, technical parameters of wp-1 coal seam gas content rapid measuring instrument, gas desorption capacity: 0 ~ 6 ml / min, gas content: 2 ~ 30ml / g, gas pressure: 0
1 ~ 6
0MPa, measurement accuracy: & plusmn; 2% display mode: 8-bit liquid crystal (LCD) display, continuous working time: more than 8h, working ambient temperature: 0 ~ 40 ℃, working ambient humidity: ≤ 95% working environment pressure: 85 ~ 110kpa size and weight: 250 & times; 145× 67mm; Zhengzhou Aidi production and supply coal drilling cuttings desorption instrument Underground coal seam gas content rapid measuring instrument Deep hole sampling device, pressure measuring instrument, geological exploration desorption instrument, borehole flowmeter, mine drainage and outburst prevention equipment, coal true apparent density measuring instrument, gas content measuring instrument, automatic measuring instrument of initial gas dispersion velocity, diffusion velocity measuring instrument, gas parameter instrument of coal drainage pipeline