No.1 coke oven of west branch of Hangang coking plant, with rising pipe inner diameter 560 mm, height 2 950 mm, the average temperature of coke-oven gas is about 766 ℃ and the flow rate is 492.7 Nm3/h. According to the characteristics of the ascension pipe, based on the structure of the original coke oven, the new spiral coil type riser heat exchanger was designed. The heat exchanger can effectively recover the high temperature sensible heat of the coke-oven gas. It effectively solved the safety problems of traditional heat exchangers such as water leakage, unstable thermal stress, easy internal clogging, tar condensation and graphite knots.