1, Solar energy thermal-control system The special used solar energy thermal-control system of Huayuan marsh gas project has several types including eletrical thermal conduction pipe and PVC pipe(conduct heat by water or other medium flowing through) and other types. And the special used solar energy heat-collector of Huayuan includes low temperature system and mid-high temperature system. The principle is translating the solar energy into thermal energy, which is transferred through PVC pipe or eletrical thermal conduction pipe into FRP(glass fiber reinforced plastics) marsh gas jar or pool to improve the temperature and realize constant temperature,which reaches the best effect and can be used in all seasons of a year. 2,marsh gas reactor jar/pool FRP marsh gas generator This generator has the advantages of lightweight,high strength,anti-aging,corrosion resistant,acid and base proof,and noleakage with both output,input holes and feeding,discharging holes. The thickness of the jar is 2-8cm, tensile-strength is 93.5 pg,and bending strength is 100mpg, with high mechanical strength and elongation. The type of jar has 2m3 , 3m3 , 4m3 , 6 m3 , 8 m3 , 10 m3 , 12 m3 , 16m3 , 20m3, of various specific types respectively, can adapt different individual demands. The product is filled with crop straws and manures with special addtives and can run continuously for 5-6 months at one charge. The advantages of Huayuan portable FRP marsh gas generator: (1) The intellective control of constant temperature, and guarantee of solar energy absorbing , storing ,transferring, and transportation has effectively removed the adverse effect of different temperature (because of different latitude , season , landform ,and location)to the marsh gas produce. (2) This equipment can produce marsh gas efficiently, and the equipment for solar energy absorbing , storing ,transfering, and transportation are advanced. According to the reality needs ,we choose and put into use of the domestic advanced technology like solar energy low temperature tech and mid-high temperature system.or other equipment like heat-collector,and so on. (3) By using dry fermentation tech,it can be installed on/ under the ground,without the restriction of geographical conditions and can be easily mov