GAS COOLER

摘要

The heat-transfer capability of a gas cooler equipped with a fin tube heat exchanger is improved. The gas cooler (10) is equipped with a fin tube heat exchanger (6), heat is exchanged between a heated gas to be cooled that is introduced from the outside and the heat exchanger (6), and the gas to be cooled is cooled and discharged to the outside. The heat exchanger (6) is provided with multiple heat-transfer fins (8) installed side by side with a prescribed space between them such that a gas to be cooled flows in the spaces, and multiple heat-transfer tubes (7) that pass through the heat-transfer fins (8) and are provided in rows in the direction the gas to be cooled flows. The outer diameter (d0) of the heat-transfer tubes (7) is 20-30 mm.