Function of anti-seismic spring supports and hangers
The subdivision of spring supports and hangers can be divided into spring hangers and spring supports. It is believed that everyone is familiar with spring supports and hangers, but in what state can spring supports and hangers function?
How does it resolve such contradictions? Spring hanger is a mechanical installation designed according to the principle of moment balance. It can be used to suspend and support the pipeline and equipment. At this time, when the pipeline or equipment has displacement, it only needs to be within the pre selected load displacement.
Spring hanger is a mechanical installation designed according to the principle of moment balance. The pipeline and equipment can be suspended and supported through it. At this time, when the pipeline or equipment has displacement, it only needs to be within the pre selected load displacement. No matter how large the displacement changes, they can always obtain a constant support force through the spring support. Thus, new additional pressure will not be brought to the pipeline or equipment, so that serious equipment and safety accidents can be prevented.
In general, spring supports and hangers should be considered for important parts with large thermal displacement. Because of this characteristic of constant force spring supports and hangers, they are more and more widely used in thermal power installation of ordinary thermal power plants, nuclear power plants, petroleum and chemical industries.

Type of thrust free sleeve compensator and sleeve compensator
With the continuous progress of science and technology, power pipeline plays an increasingly important role in iron and steel enterprises. However, the thermal compensation of the pipeline is always a problem that disturbs the pipeline engineering. Although the existing corrugated compensator and square compensator can deal with the compensation problem of the pipeline, their elastic force and the internal pressure of the pipeline make the fixed support of the pipeline more expensive. This paper introduces a thrust free sleeve compensator, which eliminates the pressure in the pipeline and changes the fixed support of the pipeline from a load-bearing support to a load reducing support, thus greatly reducing the cost of the pipeline support. 2. Operating principle of thrust free sleeve compensator The thrust free sleeve compensator is a smart use of a closed annular air chamber in structural design by applying Pascal theory in fluid mechanics. The two ends of the air chamber are respectively provided with two annular pressure surfaces, one is fixed, and the other is movable with the extension tube. The movable annular compression surface is exactly the same area as the reverse compression surface of the inner section of the pipe, and the pressure counteracts each other. In this way, only the friction thrust of the compensator is considered in the design or construction process. In the thrust calculation of the fixed support, the thrust load on the fixed support caused by the force of the medium blind plate pushing compensator is no longer calculated. Therefore, the fixed support is a load reducing support, which can save a lot of support information. 3. Generally speaking, the support arrangement of the pipeline can be simplified into the following three types: according to the Pascal hydrodynamic theory, the pressure generated by liquid (or gas) in all directions of the closed container is equal.
The first is the directly buried sleeve compensator: it adopts the sealing structure and data, and is suitable for hot water, steam, grease and other media. Through the sliding movement of the sliding sleeve to the outer sleeve, it can achieve the compensation of thermal shrinkage. It has the characteristics of reasonable structure, safe and reliable, long service life, no leakage, convenient device maintenance, wide application range, etc.
The second is two-way sleeve compensator: there are telescopic core tubes in both directions of the outer sleeve, which has good compensation performance and can be used for two-way compensation, reducing unnecessary costs.
Three double seal bellows compensator: the bellows compensator is integrated, which is equivalent to adding a mechanical seal outside the bellows compensator. Once the bellows has problems, the compensator can still work normally. Reliable performance and improved bending ability.