Common knowledge points of transverse ripple compensator

Common knowledge points of transverse ripple compensator

There are several types of transverse corrugated expansion joints currently popular, such as: large tie rod corrugated compensator, small tie rod corrugated compensator, three-way corrugated expansion joint three-dimensional corrugated compensator for pulverized coal, etc. The main movement structure is composed of two bellows and intermediate pipe It is composed of tie rods and other parts, which can absorb the lateral displacement in any plane of the pipe system. When a lateral displacement occurs, the spherical nut spherical washer on the tie rod rotates, and the tie rod also has the ability to withstand internal pressure and thrust.

Mainly used in the pipeline L and Z pipeline positions. Special attention is to install the corresponding compensation axial type compensator on the branch pipeline where the large tie rod transverse type corrugated compensator is installed (a fixed bracket should be added in front of the axial type compensator). In order to reduce the transverse deformation of the transverse corrugated compensator.

1. The large tie rod transverse corrugated expansion joint is a universal transverse type. In addition to withstanding large transverse deformation, it can also absorb the thermal deformation of the middle long pipe. If there is no need to balance the thrust of the internal pressure with a tie rod, it can also compensate for the axial deformation from the pipeline, the so-called "universal expansion joint". Since bending and axial deformation occur at the same time and the axial deformation is shared by the two bellows, their deformation is just required to be limited on the expansion joint structure, so as to evenly distribute the deformation of the bellows to make them separate The amount of deformation does not exceed the rated value.

2. When other horizontal corrugated expansion joints need to balance the internal pressure and thrust by the tie rods, it can compensate for the lateral and thermal deformation of itself. If the tie rod is not required to balance the internal pressure thrust, it can withstand axial compensation, which is also a kind of universal expansion joint.

Lateral expansion joints have the following advantages: (1) Large displacement compensation; (2) The axial force caused by internal pressure is balanced by its own tie rods and hinges, making its bracket a secondary fixed bracket, reducing the cost of the bracket; (3) ) The tie rod transverse type also has the ability to absorb axial deformation, and can play its role in pipelines with more complex deformations; (4) Its greater advantage is that it is protected by tie rods and hinges in the structure, and is installed on the pipeline. Errors or even accidents are not as sensitive as axial expansion joints, and sometimes even pipeline accidents will not damage the expansion joints.