| 摘要 |
<p>PROBLEM TO BE SOLVED: To make this pipe-shaped structure resistant to a harmful fluid flowing in the inside, so as to prevent an influence of high heat in the outside from being given to the inside. SOLUTION: This structure is constituted by an inner pipe part 2 of metal- made helical pipe structure, outer pipe-shaped cover part 1 covering an outer side of this inner pipe part and a part of a chemical resistant anticorrosive coating layer 5 covering an inner side of the inner pipe part 2. Here, the outer pipe-shaped coating part 1 in an outer side of the inner pipe part 2 is formed out of a heat resistant and heat insulating material, even high heat by a fire in the outside is interrupted, giving an influence is prevented to an inner side of the inner pipe part 2, by the chemical resistant anticorrosive coating layer 5 in an inner side of the inner pipe part 2, a fluid of harmful gas and corrosive gas in the inside of a pipe can be interrupted.</p> |
