The three-way bypass damper valve includes two valve body, two valve disc, two valve seat,one tee, and 4 cylinder. The valve body is divided into three cavities A, B, and C that are connected to the outside by the valve plate seat. A sealing material is installed between the valve body and the valve plate seat. The air damper plate in the cavity is connected to the cylinder through a connecting shaft. By changing the position of the valve plate, the flow direction of gas in the pipeline can be changed; Due to the heat exchange through the thermal storage body, the working temperature of the reversing valve is relatively low, and there are no special requirements for the material of the reversing valve.

However, due to the requirements of continuous production, the reversing valve needs to overcome the wear and tear caused by dust in the flue gas and the corrosive effects. The mechanical parts need to ensure the wear and tear caused by frequent switching of components, which has required high reliability and working life.