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一、沼气导管的选择(一)在选择沼气导管时应购买材质较好,气密性强,抗老化、耐腐蚀、内外表面光滑且弹性较强的透明或半透明的聚氯乙烯软塑料管。当用手将其压扁时可感觉到有极强的反弹力,松开手后它能迅速恢复原状。但是有两种塑料导管不宜选用,一种是再生塑料管,它内外表面粗糙,气密性差,易老化易破裂;另一种是聚乙烯塑料管,其柔性差,内外表面粗糙,易破裂,且接头处极易漏气。这两种塑料管弹性极差,用手极易将其压扁,且松开手后很难恢复原状。(二)根据沼气池与炉具的距离确定选择内
First, the choice of biogas duct (A) In the choice of biogas duct should buy better material, tightness, anti-aging, corrosion resistance, the inner and outer surfaces are smooth and flexible transparent or translucent PVC soft plastic tube . When you crush it by hand you can feel a very strong rebound, it can quickly restore the status quo after loosening the hand. However, there are two kinds of plastic pipe should not be used, one is recycled plastic pipe, which has rough internal and external surfaces, poor air tightness, easy to aging easily broken; the other is polyethylene plastic pipe, its flexibility is poor, rough surface and easy to crack, And joints easily leak. Both plastic tubes are extremely flexible and easily crushed by their hands, making it harder to restore their original shape after releasing their hands. (B) According to the digester and stove to determine the choice of the distance