The spiral plate heat exchanger is a high-efficiency heat exchange device suitable for steam-vapor, vapor-liquid, liquid-liquid, convection heat transfer. It is suitable for chemical, petroleum, solvent, pharmaceutical, food, light industry, textile, metallurgy, Rolling steel, coking and other industries. According to the structure, it can be divided into non-removable (i type) and detachable (ii type, iii type) spiral plate heat exchangers. The tube-type condenser produced by our company is divided into carbon steel tube type condenser, stainless steel tube type condenser and carbon steel and stainless steel mixed tube type condenser according to the material, which are divided into fixed tube plate type according to the form. Floating head type, U-tube heat exchanger, divided into single tube, double tube and multi tube according to structure. The heat transfer area is 0.5~500 square meters, which can be customized according to user needs.