QBLT type air heat exchanger is a new product developed by our company, which is made of all stainless steel. This product has high-quality characteristics such as pressure resistance, high temperature resistance, corrosion resistance, high strength, and long service life., the heat transfer performance and air flow performance are good, and its performance reaches the domestic advanced level, which is suitable for steam and high-temperature water heating system (also can be water-cooled,cooling system) is suit- able for centralized heating air heat exchange devices,cooling air conditioning, washing and drying machines, dehumidification projects.