Hydraulic stirring heat exchange system in anaerobic fermentation tank

The hydraulic stirring heat exchange system in the anaerobic fermentation tank provided by the utility model not only solves the problems that the temperature rise in the fermentation tank is slow and the temperature in the tank cannot reach a design index, but also can monitor the temperature of each part in the tank body in real time; according to the technical scheme, the fermentation tank comprises a tank body, a cover is arranged on the tank body, and the fermentation tank is characterized in that a heating coil surrounds the lower end of the inner side face of the tank body, a plurality of side stirrers extending into the tank body are arranged at the lower end of the tank body, and the side stirrers are arranged in the tank body. Stirring fan blades are fixedly connected to the ends of the side stirrers, the side stirrers are obliquely arranged and uniformly distributed along the circumference of the tank body, a backflow heating pipe connected with the upper end and the lower end of the tank body is a