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煤层注热是近几年提出的一种新型的瓦斯强化抽采方法,在煤层注热过程中,水蒸气湿度的增加会影响煤层瓦斯的抽采效果。为了了解水蒸气的湿度效应对煤层注热过程的影响,在前人研究成果的基础上,运用传热学、渗流力学、弹性力学等相关理论,加入了水蒸气湿度的影响并建立了含湿度效应的煤层注热多物理场耦合模型。模型的建立有助于今后进行数值分析及相关实验室实验。
Coal seam heat injection is a new type of gas enhanced extraction method proposed in recent years. During the process of coal seam heat injection, the increase of moisture vapor will affect the gas drainage effect of coal seam. In order to understand the influence of water vapor on the injection process of coal seam, based on the research results of previous researchers, the influence of water vapor and humidity on the basis of related theories such as heat transfer, seepage mechanics, elasticity and so on, Effect multi-physics coupled model of coal seam injection. The establishment of the model is helpful for the future numerical analysis and related laboratory experiments.