我国北方地区沼气工程冬季增温保温技术研究进展与展望

Research Progress and Prospect on Heat Insulation and Temperature Increasing Technology for Biogas Project in Winter of Northern China

冬季增温保温技术对于保障寒冷地区沼气工程高效运行至关重要。我国沼气工程冬季增温保温技术研发和应用取得了大量成果,文章主要从加热方式、增温热源、工程运行措施3个方面,评述我国北方地区沼气工程增温技术的研究进展,从保温材料、太阳能温室大棚、其他保温技术3个方面,梳理了我国北方寒冷地区冬季保温技术的研究和应用进展。最后提出未来我国北方地区沼气工程在增温保温技术方面,应重点开展能源投入产出边际效率、低能耗型增温保温工艺、煤炭加热电加热等传统工艺、多能互补加热模式等方面的研发。

The temperature raising and maintaining technologies in winter play a vital part in biogas project. This paper, from the aspects of temperature raising approach, source of heat and project operation measures, reviewed the developments attained in the technology research for winter time of northern China, and discussed the insulation material, solar greenhouse, and other thermal insulation technologies. In the final part, the paper proposed that, in the field of temperature raising and maintaining, the emphasis should be put on the research of the marginal efficiency of energy input-output, low energy consumption technology, traditional technology utilizing electric and coal, multi-energy supplementary technology, etc.