农村沼气近几年一直发展缓慢,为什么?从我们江苏情况来看,既不是过去所认为的“农民手中没钱,办不起”,也不是农村能源已不紧缺,用不着搞了。而是因为:①普遍存在投料不足和“老三低”(发酵原料利用率低、产气率低、灶具热效率低),使沼气的经济放益未能发挥出来;②沼气不像农机具那样达到商品化,建池质量不稳定,使用寿命较短,维修费用大;也不像省柴灶那样结构比较简单,使用操作方便,易于制作。可见农村沼气的发展,必须在“好、方便、实用”几个方面,有所突破。现对今后技术研究的方向,提几点肤浅看法1.沼气科研要紧紧环绕提高经济技术效益组织攻关。当前提高沼气池发酵原料消化率、产气率、年利 In recent years, the rural biogas has been developing slowly. Why? From our point of view of Jiangsu, it is neither the “past peasants’ money nor the management of peasants” nor the shortage of energy in rural areas and the unnecessary use of fuels. But because: ① generally inadequate feeding and “third low” (low utilization of fermented raw materials, low gas production, low thermal efficiency cooker), so that the economic benefits of biogas failed to play out; To achieve commercialization, the construction of unstable pool quality, shorter life expectancy, maintenance costs are large; nor as the provincial firewood structure is relatively simple, easy to use and easy to manufacture. Shows the development of rural biogas, must be “good, convenient and practical” several breakthroughs. Now the future direction of technology research, make a few superficial views 1. Biogas research should focus on improving economic and technological benefits organizations. At present, biogas digesters, gas production rates and annual profits are increased