| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger for gas containing easy-to-polymerize substance provided with a gas diffuser between a heat exchanging gas introduction opening and a heat exchanging section. SOLUTION: The heat exchanger comprises a shell having a heat exchanging gas introduction opening and a heat exchanging gas delivery opening, and a heat exchanging section for circulating fluid introduced from the outside of the shell between the gas introduction opening and the gas delivery opening, wherein a gas diffuser is provided between the gas introduction opening and the heat exchanging section. Transverse sectional area of the gas diffuser is set equal to 1.0-10.0 times of the cross sectional area of the gas introduction opening. When gas containing easy-to-polymerize substance touches a structure, the gas condenses on the contact face to produce a polymer. The inventive heat exchanger dissipates heat uniformly by diffusing the gas uniformly to the heat exchanging section, thus retarding condensation of gas and preventing polarization of the easy-to-polymerize substance. |
