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The rotary compensator is composed of variable diameter pipe, inner sleeve, sealing seat jacket, flexible graphite filler, nut bolt spring combination and packing cover, and is equipped with corresponding balls. Rotary compensator is made by pressing the sealing material with a press first, which requires not too dense density and maintains plasticity. Then the N-ring of the packing ring is put into the packing chamber to add some ingredients to retard oxidation. Then the packing ring is formed twice under a certain pressure (the strength and uniformity of the hydraulic press are better than the manual wrenching process), so that the packing rings can be merged into one, so as to improve the density of the packing. The sealing performance of the filler is better and the product is guaranteed not to leak in 15-20 years.
With the development of urban industry, thermal pipelines and petrochemical pipelines have been updated day by day. Especially in recent years, there are many long-distance compensation pipelines, three-dimensional pipelines and so on. These pipelines need a lot of fixed brackets in the erection, and the erection cost is very high. Especially in the space pipeline network, it is very difficult to install fixed brackets, or even impossible to install them at all, which seriously affects the design and development of the pipeline network. The company develops rotary compensator according to market demand.
Use and Installation of Rotary Compensator
1. This compensator is specially used for pumping vessel pipelines. When welding, grooves should be made at the pipeline joints. After welding, pressure vessels should be inspected, and hydraulic tests should be carried out. Sealing and pressing components should be adjusted to be leak-free during the tests. The forces of each component should be the same, and the spacing wrench is the best choice.
2. The suspension bridge bracket is designed and installed. In order to ensure the lateral displacement of pipeline, the compensator is generally installed near the suspension bridge bracket. The guide bracket should be installed on the movable side. Fixed bracket must be installed at the pipeline turning.
3. The insulation and waterproof structure of the compensator can be the same as that of the pipeline, but it can not bind the expansion pipe.
4. The compensator can be installed at any temperature. Without pre-tension or pre-pressing, the casing will not loosen, such as loosening the compression bolt.
Structure and Characteristics of Rotary Compensator
The company adopts the most advanced and reliable sealing technology and double combination sealing structure. The product has reasonable design, unique structure, no thrust, good sealing and large compensation. It has all the characteristics of various types of compensators and is widely used in reservoir water intake, water supply, petrochemical, electric power, metallurgy, textile, construction and other fields.
Rotary compensator: It consists of rotating inner cylinder, packing cap, fastening flange, guiding centering ring, forming flexible graphite sealing filler, sealing ring, sealing seat shell, terminal pipe, bolt and nut. The product features no thrust, large compensation and no leakage.
It should be noted that in order to save cost and facilitate the processing of conventional rotary compensators, variable diameter tube is used as the interface. The variable diameter pipe will produce eddy current and flow resistance in the heat network pipeline, which will affect the flow rate, flow rate and pressure of the pipeline, and the error of the size and shape tolerance of the interface is large, so it is difficult to guarantee the welding quality of the pipeline. Therefore, the series of products of the company's non-thrust rotary compensator have changed the interface of the variable diameter pipe to be in line with the pipeline formula diameter. Direct management interface, fundamentally eliminating the generation of such problems, has been well received by users.
Scope of use of rotary compensator:
Rotary compensator is suitable for all kinds of pipelines (such as straight line, corner, parallel and ground over to overhead, etc.). Its function is to compensate the displacement of pipeline caused by thermal expansion and cold contraction.
1. Provide nominal diameter, working pressure, working temperature, compensation amount, fluid medium and required product type and quantity;
2. Provide material requirements for takeover: According to the use and design parameters, the material is generally the same as that of pipeline (20 # or Q235B), which can be customized if users have special requirements;
3. Interface connection form The company's conventional products are welding type. If flange connection is needed, please provide flange standard.
4. High or low temperature, high pressure or negative pressure or complex pipelines, and products with special requirements can be specially designed and supplied by our company.
