Research Progress of Distributed Clean Heating Technology in Cold Regions
Distributed clean energy has been applied in the heating of cold areas in the north.The advantages and disadvantages of the existing distributed clean heating technologies in the north of China,including solar heating,air source heat pump,sewage source heat pump,ground source heat pump,medium-deep non-interference geothermal,natural gas heating,etc.and the common problems in the clean heating are analyzed,and the solutions are discussed.The results show that,solar heating is mostly used as an auxiliary heat source for conventional heating;quasi-double-stage compression can solve the frosting problem of the outdoor unit of the air source heat pump;ground source heat pump can be the only heating source,and its application is limited by the heat source available around;the thermal guarantee rate of natural gas heating is good,and the cost is high.Influenced by the national incentive mechanism,multi-energy complementation and system integration will be the focus of the development of clean heating in the future.
Distributed clean energySolar heatingHeat pumpMedium and deep undisturbed geothermal system