Long little shallow two strips encircle formula household biogas

The utility model discloses a long little shallow two strips encircle formula household biogas, including the fermentation vat, the fermentation vat comprises bottom of the pool and the chi gai of setting on the bottom of the pool, the bottom of the pool is the concrete, chi gai is glass steel or stainless steel, the bottom of the pool is the whole banding circular arc cell type of length that is, the whole banding circular arch type of length that is of chi gai, bottom of the pool and the transition of chi gai both ends arcwall face, the fermentation vat is covered and is provided with the feed inlet, the air duct, the discharging pipe, go out the dense fertile pipe and the pipe that reloads greatly, the feed inlet sets up the one end at chi gai, the discharging pipe sets up the other end at chi gai, the pond side of covering of ejection of compact pipe end sets up between water pressure, the air duct sets up the top at chi gai, it stretches into the bottom of the pool bottom with the side of the guan congch