Structural composition of the internal pressure straight pipe pressure balanced corrugated compensat

The internal pressure balancing corrugated compensator for overhead use is mainly used to absorb the displacement generated in the axial direction, but also a small amount of lateral displacement, or a combination of both. The structure and working principle of different corrugated compensators are different. Henan Huanzhong take you to understand about the internal pressure straight pipe pressure balance corrugated compensator composition structure.

On the basis of the straight pipe pressure balance corrugated compensator, it consists of two working bellows located at both ends and a balance bellows located in the middle and structural parts such as tie rods and end plates (guide bar, end plates). The structure composition is simple, when needing to compensate for combined axial and lateral displacement, the two ends of the tie rod should be equipped with additional spherical and tapered washers.

Subject to internal pressure, the wave number of the bellows is limited by the stability of the column, and its effective length is small to compensate only a small transverse displacement. Due to the binding force of the tie rod, the distance between one of its working bellows and the balance bellows is unchanged throughout the operation, the piping system thermal expansion of the two working bellows compression, balance bellows tie rod, absorb the axial deformation of the pipe system. The spherical and tapered washers and nuts at the end of the tie rod restrain the pressure thrust while allowing the tie rod to tilt, allowing the bellows to absorb the displacement generated laterally. Tie rod and end plate can withstand the force and moment caused by the pressure thrust; end plate not only needs to withstand the force and moment caused by the pressure thrust, but also should be able to withstand the internal pressure load acting on the ring surface between the inner diameter of the working bellows and the inner diameter of the balancing bellows.

Straight pipe pressure balance corrugated compensator can be divided into internal pressure, external pressure, external pressure bypass and internal and external pressure combination according to the structure. It can be used in high level straight pipeline or large diameter pipeline where fixed support is not suitable.