Classification of sleeve compensators

Sleeve compensators are divided into ordinary sleeve compensators, injection-type sleeve compensators, direct-buried sleeve compensators, DC medium non-thrust compensators, elastic sleeve compensators, dual-flow sleeve compensators, and balance type thrust sleeveless compensator etc.

Ordinary sleeve compensator

The sleeve compensator is called a tubular expansion joint. It is a compensation device for hot fluid pipelines. It is mainly used for axial thermal expansion displacement absorption compensation after the auxiliary installation of linear pipelines. It is a type of one-way or multi-directional compensator in the pipeline to the fluid. Sleeve compensators are widely used in transportation pipelines in urban heating, metallurgy, mining, petrochemical, and construction industries. It is mainly composed of sleeve, shell, sealing material and so on.

Filling sleeve compensator

It is designed and manufactured according to CJ / T3016.2. It is mainly used for axial compensation of overhead pipelines. It can also be used for directly buried pipelines and to absorb pipelines caused by temperature differences. Axial telescopic, widely used in urban heating, metallurgy, mining, power generation, petroleum, chemical, construction and other industries. This type of compensator adopts the composite sealing structure of high-quality molded packing and semi-solid sealing oil, which has the advantages of good sealing performance, high temperature resistance, corrosion resistance, and plugging under pressure, which can ensure long-term stable operation of the pipeline.

Directly buried sleeve compensator

This type of product adopts a composite sealing structure of high-quality molding filler and semi-solid oil seal, which has the advantages of good sealing performance, high temperature resistance, corrosion resistance, and plugging under pressure, which can ensure the long-term stable operation of the pipeline. In addition, this type of compensator has a smaller outer diameter, which can reduce the distance between adjacent pipes and facilitate the arrangement and installation of pipes.

DC medium without thrust compensator

The thrust-free compensator is based on Pascal theory in fluidics, and uses a dense annular steam chamber in the design structure. There are two annular pressure surfaces in the steam chamber, one is a fixed end face of the steam chamber, and the other is the annular surface of the shoulder of the telescopic tube enclosed in the steam room, which is movable with the telescopic tube. The area of this movable annular pressure surface is exactly equal to the cross-sectional area of the telescopic tube. When the compensator works, the pressure on the annular surface is equal to the pressure of the cross-sectional area of the telescopic tube under the action of the medium pressure. Instead, the two pressures cancel each other out. In this way, only the frictional force of the compensator pressing the packing is considered in the design of the bracket, and the thrust on the fixed bracket is no longer calculated in the thrust calculation of the fixed bracket due to the pressure of the working medium.Therefore,the fixed bracket is a load-reducing bracket, which can save a lot of bracket materials, and also save manpower and financial resources.

Elastic sleeve compensator

The elastic sleeve compensator is a product invented on the basis of a common sleeve compensator. Under the force of a spring, the sealing packing is always in a compressed state, and it automatically compensates for the wear of the packing. The structure is reasonable and durable.

Double flow sleeve compensator

The SLT type double-flow sleeve compensator absorbs the advantages of the ordinary sleeve compensator, which increases the compensation energy, reduces the number of inspection rooms, reduces infrastructure costs, and facilitates maintenance. Adopt high-quality shaped packing and semi-solid sealing oil compound sealing structure, high temperature resistance, corrosion resistance, durable.

Balanced thrust-free sleeve compensator

Ordinary compensation joints are socket-type, and the axial expansion joint itself cannot withstand the blind plate force caused by the internal pressure of the medium, so the fixing of the pipeline that is the bracket must be considered. In addition to the necessary fixing and support, the bracket mainly bears the thrust generated by thermal expansion and contraction the internal pressure of the medium, especially the position of the pipe bends and tees and crosses. The cost of the stent is very high. In order to reduce the cost of the stent and meet the requirements for use, it is mainly used for compensating joints that can balance the internal pressure and thrust while absorbing axial displacement.