| 摘要 |
A fire tube heat exchanger with a plurality of heat exchanging tubes (3,4), wherein the heat exchanging tubes (3,4) are in form of a double tube with an outer tube (3) closed at outlet side and an open ended inner tube (4) spaced apart from the outer tube (3), adapted to exchange heat between a hot gas on tube side of the outer tube and a fluid on shell side of the tube. <IMAGE> |
