Thread Tube Heat ExchangerThread tube is a forced conductive heat component, which can be integrated into all sizes of tubular shell heat exchanger instead of normal tubes. It is also a product of saving energy which is combined to all sizes of condensers, coolers and horizontal reboilers. The overall coefficient of thermal conductivity can be improved 50%-70% and the ability against corrosion is higher than normal tube. It can prolong the operating term and using life. 2 times difference of feedhot coefficient between the inner tube and the outer is the ideal using condition.