Explosion door structure for flue of organic heat carrier heating furnace

The utility model belongs to the technical field of organic heat carrier heating furnaces, and particularly relates to an organic heat carrier heating furnace flue explosion door structure which comprises an outer barrel and an inner barrel, and the inner wall of the outer barrel is connected with the inner barrel in a sliding mode. A circular ring is fixedly connected to the top end of the outer cylinder, a vertical rod is slidably connected to the inner wall of the circular ring, a shock pad is mounted on the circular ring, and the outer cylinder is of a hollow cylindrical structure with two open ends. The top end of the inner barrel body is fixedly connected with a plugging disc, and the bottom end of the plugging disc is fixedly connected with the vertical rod. The pressure relief device has the beneficial effects that the pressure relief threshold value can be adjusted by setting the number of the balancing weights, the adjustment is convenient, and more furnace gas cannot be released and cannot be waste