The sleeve type compensator, also known as the tube type telescopic joint, is a compensating device for the hot fluid pipeline, and the sliding movement of the sliding sleeve to the outer sleeve achieves thermal expansion compensation.
We are professional in Sleeve compensator include Single flow sleeve compensator, Rotary compensator, Spherical compensator and Non thrust sleeve compensator.
Structure picture of single flow direction welding type sleeve compensatorNon thrust sleeve compensator
Non thrust sleeve compensator
Slip pipe: chromium plating in carbon steel/304
Sleeve compensator, called tubular expansion joint, is a compensation device of thermal fluid pipeline. It is mainly used for axial thermal expansion displacement absorption compensation after linear pipeline auxiliary installation. It is suitable for hot water, steam, oil and oil medium, and the slip movement of the sleeve through the sliding sleeve can achieve the compensation of thermal expansion.
Sleeve compensator suitable medium engineering pressure less than 2.5MPa, the medium temperature of -40 -600 deg.
The sleeve compensator adopts the new sealing material, flexible graphite ring, which has the characteristics of high strength, small friction coefficient (0.04-0.10), no aging, good effect and convenient maintenance.
The service life of the sleeve compensator is large, and the fatigue life is equal to that of the pipe. The corrosion resistance of sliding surface is better than that of austenitic stainless steel, which is more than 50 times higher than austenitic stainless steel in saltwater and salt solution. At the same time, many years later, because of the weakening of the sealing effect due to wear, it can re fasten the flange and enhance the sealing performance. It can also release the bolts, remove the pressure ring, then install one or two layers of seal rings, compress the pressure ring, and continue to use.
The sleeve compensator is not required for the content of chlorine ion, and is especially suitable for the system of superstandard chlorine ion in the medium or the surrounding environment.
The sleeve compensator is divided into one way and two way compensation structure. The two-way characteristic is whether the sliding sleeve on both ends of the compensator is always sliding freely, no matter where the medium flows from the end of the compensator, so as to achieve two-way compensation and increase the compensation amount.
The directly buried sleeve type compensator can be buried directly in the underground, and the maintenance well can not be set up when the installation is installed, and the cost of the project is low.
The sleeve compensator should be properly kept before installation to prevent the sun and rain and dust pollution.
When installing, check whether the specifications and design of the compensator are consistent with the design. There should be no impact on the product surface, such as bruise, pressing pits, serious rust, and other factors that affect the quality of products.
When the total length of the disposable compensator is identical with the sample, it is not necessary to stretch or compress again. For example, when the installation mark changes on the telescopic main pipe, it should be adjusted before installing.
The two-way non thrust compensator must be installed according to the medium injected in the sketch. When the medium is steam, the compensator will not form the gas plug. In order to ensure the equal compensation of the compensator in two directions, the two-way compensator must be arranged in the middle of the two fixed points in the design.
The pipe segments welded with the two ends of the compensator must be treated by grooves. After welding, water pressure test is required according to the requirements. When the test pressure is to be tightened, the bolts at both ends of the packing chamber must be tightened without leakage. After running for 24 hours, the bolts on both ends of the packing chamber must be tightened again.
In order to ensure that the pipe has no lateral displacement, only along the axial expansion, the guide support is installed on the side of the telescopic pipe. When both sides of the compensator have axial position, the guide support should be installed on both sides to ensure that the axial displacement is positive and negative to the eccentricity of the compensator (+) not more than 1 degrees.
The heat preservation and waterproof structure of the compensator is the same as that of the pipe, but it can not be binding on the expansion section.
The compensator has the amount of 60mm, can be installed according to the maximum installation length Lmax, without the need to pull or pressure. Other special circumstances to negotiate.
Single flow sleeve compensator
Slip pipe: chromium plating in carbon steel/304
Other: carbon steel
Features of Rotary Compensator:
Large compensation amount, set up according to the natural terrain and piping intensity, the largest group of compensator can beused in the compensation of 500m pipeline section;
- No blind force generated by medium pressure, mounting bracket can be not that large, even for large diameter pipes;
- Excellent sealing performance, long-term operation without maintenance;
- Less investment;
- Simple design calculation;
- This rotating compensator can be installed in underground pipelines for steam and hot water transmission, safe operation.
- Slip pipe: chromium plating in carbon steel/304
- Other: carbon steel
Rotary compensator
The sealing packing material of the rotary compensator can withstand temperature -60℃-800℃. Between the inner pipe and external pipe, there are two retaining rings, inside which there are lubricate beads for reducing friction, as well as reducing packing wear by the inner pipe.
The pushing power of the springs on the rotary compensator will keep the gland flanges always tight with the packing material, so that avoiding media leaks of the pipeline. If the packing wear is large, the spring compression force can be adjusted by external force without stopping pipeline operating.
Generally speaking, it needs a group of rotary compensator in the length of 150~500m pipeline(or in accordance with the natural terrain), and there are more than 10 kinds of installation form, choose different layout form according to the pipeline route. With this rotary compensation, the mounting bracket spacing increases, in order to avoid deflection of pipelines, guide brackets should be increased. In order to reduce the frictional resistance of pipe operation, rolling bearings shalled be installed on the slide brackets.
Features of Rotary Compensator:
Large compensation amount, set up according to the natural terrain and piping intensity, the largest group of compensator can beused in the compensation of 500m pipeline section;
- No blind force generated by medium pressure, mounting bracket can be not that large, even for large diameter pipes;
- Excellent sealing performance, long-term operation without maintenance;
- Less investment;
- Simple design calculation;
- This rotating compensator can be installed in underground pipelines for steam and hot water transmission, safe operation.
- Slip pipe: chromium plating in carbon steel/304
- Other: carbon steel
Spherical compensator
Spherical compensator is also called three-dimensional spherical compensator.
The three-dimensional spherical compensator is composed of two spherical structural elements and a sleeve structural element. The spherical structural element makes radial deflection angular displacement, and the sleeve structural element makes axial linear displacement.
When two spherical structural elements and one sleeve structural element are combined, a toggle structure that can simultaneously absorb three-dimensional expansion is formed.
The three-dimensional spherical compensator has a large deflection angle and a large axial displacement, which can effectively absorb the large downward displacement of the boiler.
When selecting the three-dimensional spherical compensator, such as horizontal installation, it mainly absorbs the downward displacement of the boiler, that is, the angular displacement of the three-dimensional spherical compensator. In this case, a three-dimensional spherical compensator with large angular compensation and small axial displacement should be selected. . On the contrary, the vertical installation mainly absorbs the downward displacement of the boiler; that is, the three-dimensional spherical compensates the axial displacement. At this time, a three-dimensional spherical compensator with small angular compensation and large axial displacement should be selected.
The compilation specifications of the three-dimensional spherical compensator are DN200 ~ DN600 in total 9 kinds according to the public; the compilation specifications according to the English are: 18", 20", 22", 24", 26", 28", 30"
There are 8 kinds of 32"; the length of the preparation specifications is set as 1200~3000, 5 kinds; the total specifications are 85 kinds.
The three-dimensional spherical compensator produced by our company is mainly used in urban central heating pipelines, steam pipelines in thermal power plants, powder and ash discharge pipelines for large power boilers, air (gas) pipelines and various cooling pipelines in the metallurgical industry, and other heat Various pipes that expand and contract, etc.
The sleeve type compensator/tube type expansion joint adopts a new type of sealing material flexible graphite ring, which has the characteristics of high strength, no aging, good effect and convenient maintenance. The tubular telescopic joint has a long service life and a fatigue life comparable to that of a pipe.
