Heating medium utilizing apparatus

摘要

In a heating medium utilizing apparatus utilizing heating medium heated by a heating device, it is aimed to provide a pipe which achieves both of the strength of a connection part to an external pipe and the ease of pipe layout without increasing a manufacturing time. On a tip portion of an internal pipe through which the heating medium or fluid to be heat-exchanged with the heating medium flows, a pipe expanding process to expand a pipe diameter and a pipe shrinking process to shrink the pipe diameter are carried out, thereby forming the connection part to be connected to the external pipe connected to external equipment by work hardening.

主权项

1. A heating medium utilizing apparatus utilizing heating medium heated by a heating device, the heating medium utilizing apparatus comprising:
an internal pipe through which the heating medium or fluid that has been heat-exchanged with the heating medium flows; and a connection part provided at a tip portion of the internal pipe to be connected to an external pipe connected to the heating device or another external equipment, the connection part formed by carrying out, on the tip portion, a pipe expanding process to expand a pipe diameter and a pipe shrinking process to shrink the pipe diameter.