一九八五年卢龙县新能源办公室研制成功一种新型水泥浇注单口水压式沼气池。新型水压式沼气池是在三开口沼气池的基础上研制而成,它的优点是:①建池占地面积小,施工简单,水压箱设在池子筑顶上面,约占筑顶五分之一,水压箱和池子形成一体,不易出毛病;②池子线,进出料方便,但池温较高,发酵充分,产气足,利用率高; In 1985 Lulong County New Energy Office successfully developed a new type of cement pouring single-port hydraulic biogas digesters. The new hydraulic biogas digester is developed on the basis of three open biogas digesters. Its advantages are as follows: ① The construction area of ​​the digester is small and the construction is simple. The hydraulic pressure tank is located above the top of the digester, accounting for about 5% One of the pressure tank and the pond form one, not easy to get out of trouble; Pool line, easy access to materials, but the higher the pool temperature, full fermentation, sufficient gas production, high utilization rate;