| 摘要 |
PURPOSE:To easily mount even in an existing facility by an inexpensive structure and to efficiently heat particularly in a system having a small necessary heating amount. CONSTITUTION:A plug body 21 and vapor tubes 31, 32 are provided, both ends of the tubes 31, 32 are connected to a vapor input passage 23 and a vapor discharge passage 24 provided through the body 21, and the body 21 is mounted on a sidewall 44 of a heat exchanging housing 40. |
