我县农村办沼气,目前普遍存在产气率低,建池成本高等问题,分析其主要原因:现有的沼气池由于地面结构是裸露的三开口,无保温性能,在夏季高温期有一定的增温作用,春秋季节不保温,气温变化直接影响池温高低。所以现有的池型不适于北方寒冷地区应用。因此,探讨适应当地自然条件的新池型是个急待解决的课题。为此我们设 Currently, there are many problems such as low gas production rate and high cost in constructing the pond. The main reason for the analysis is that the existing biogas digesters have three bare openings because of the ground structure, and have no thermal insulation property. In the summer high temperature period, there is a certain amount of methane The role of warming, spring and autumn does not heat, the temperature changes directly affect the pool temperature level. Therefore, the existing pool is not suitable for cold northern applications. Therefore, to explore the new pool to adapt to the local natural conditions is an urgent issue to be solved. For this we set