Fusing valve for nuclear power

The fusing valve for nuclear power relates to the technical field of valves, and comprises a valve body and a stretching mechanism, a water inlet and a water outlet are formed in the two sides of the lower end of the valve body respectively, a pair of partition pieces are arranged between the water inlet and the water outlet, a pressing disc is horizontally and fixedly arranged in the valve body, and the pressing disc is provided with a pressure plate. The stretching mechanism is arranged in the valve body in a penetrating mode, an upper cavity is formed in the position, located at the upper end of the pressing disc, in the valve body, a flow guide pipe is arranged on the valve body, the two ends of the flow guide pipe are communicated with the water inlet and the interior of the upper cavity respectively, and meanwhile an opening and closing device for controlling the stretching mechanism is arranged on the valve body. According to the fusing valve, the self-starting opening and closing device is arranged, s