Jacketed type corrugated pipe compensator
A technology of compensator and bellows, which is applied in expansion compensating devices for pipelines, pipe components, pipeline heating/cooling, etc. It can solve problems such as medium flow solidification, pipeline blockage, and influence on normal production, and achieve flexible compensation and linkage The effect of simple structure
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[0015] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.
[0016] figure 1 The jacketed bellows compensator shown includes inner and outer compensators coaxially fitted together, as well as ring plate 3 , pull rod 4 and lug plate 7 for positioning and connecting the inner and outer compensators. The inner compensator is located in the middle, and it includes an inner bellows 9 and an inner nozzle 1 that are coaxially and sequentially sealed at both ends of the inner connecting pipe 8 . This embodiment is applied to steam pipelines in the petrochemical industry, with a diameter of CN1300mm and a nominal pressure of 0.6MPa. In order to further improve the flexibility of the compensation action of the inner compensator, the corrugated inner bellows 9 is U-shaped, and multi-layer thin plates are jointly rolled and formed. The inner bellows 9 with such a thin-walled multi-layer structure has good f...
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