【摘要】：井下直接測定煤層瓦斯含量時,常出現(xiàn)煤樣溫度過高、瓦斯放散量過多導致?lián)p失量的推算不準確,使煤層瓦斯含量的測值出現(xiàn)偏差�；�0℃以上的常溫時煤對瓦斯的吸附能力隨溫度降低而增強的性質,提出冷凍取煤樣方法,減少吸附瓦斯的損失量,使瓦斯含量的測值更準確。通過實驗探究了低溫下溫度對煤的瓦斯吸附能力的影響,從理論上證明該方法可行。
[Abstract]:When directly measuring the gas content in coal seam, the temperature of coal sample is too high, and the calculation of loss amount is inaccurate, which leads to the deviation of the measurement value of gas content in coal seam. Based on the property that the adsorption ability of coal to gas increases with the decrease of temperature at room temperature above 0 鈩，

本文編號：2200167