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1981年我们设计了一种供社员各户使用的(若集中供气,多户使用只需将沼气池容量加大。)小型太阳能反馈式加温沼气池,并附有温室和隔离保温层等设备。利用太阳能温室效应和太阳能热水器的作用,以及反馈式原理,给沼气池加温,从而达到中温发酵的目的。实践证明,这种沼气池冬季保温与增温效果较好。2月份沼气池内温度仍保持22℃,每日产生沼气为1.0
In 1981, we designed a type of supply for use by members of each household (if the gas supply is centralized, the capacity of the biogas digester should be increased for multi-user use.) A small solar feedback heating biogas digester with greenhouses, insulation and insulation layers, etc. equipment. The use of solar greenhouse effect and the role of solar water heaters, as well as the feedback principle, to warm up the biogas digester, so as to achieve the purpose of medium temperature fermentation. Practice has proved that this type of biogas digester has better insulation and warming effect in winter. In February, the temperature in the digester remains at 22°C, and the biogas produced daily is 1.0