| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an expansion joint to solve a problem of causing breakage and deterioration of an expansion heat insulating material in the case when self-exciting oscillation is generated on a baffle due to a flow of working liquid. SOLUTION: This expansion joint is constituted of an upstream side flange 6 of an upstream side duct 1, a downstream side flange 7 provided facing against this upstream side flange 6, a bellows 8 to connect the upstream side flange 6 and the downstream side flange 7 to each other, the expansion heat insulating material 10 set on inner peripheral surfaces of step differences 6a, 7a provided on the upstream side flange 6 and the downstream side flange 7, fixing pins 22 provided on the inner peripheral surface of the step difference 6a, a heat insulating material presser plate 20 to hold the expansion heat insulating material fixed on the fixing pin 22 from inside and the baffle 24 separately provided inside of the heat insulating material presser plate 20.</p> |
