Stainless Steel braided sleeve compensators are widely used in gas pipelines, so what are the basis for the design and selection of metal Stainless Steel Braided Sleeve?
In the application of stainless steel braided casing, the given conditions of the system (complete machine) or subsystem (component) are the main basis for the design and shape selection of stainless steel braided casing. Generally given design conditions are as follows:
(1) Maximum space size or diameter
(2) The nature and size of the workload
(3) Working displacement
(4) Operating temperature range
(5) The nature of the working medium
(6) Accuracy requirements
(7) Service life
The main content of the design and selection of the Stainless Steel
Braided Sleeve is: to select the material, structure, geometric size parameters and performance parameters of the Stainless Steel Braided Sleeve according to the given known conditions of the system. In the selection process, the system's requirements for the use of stainless steel braided casings should be fully met, and the structure should be advanced and reasonable. It is best to carry out optimal design when conditions permit. Practice has proved that the design and selection of Stainless Steel Braided Sleeve is very important. If the design and selection are unreasonable, the quality of Stainless Steel Braided Sleeve cannot meet the requirements of use.
1. material selection
According to the use of stainless steel braided casing, the load type and size, precision requirements, working medium, working temperature and service life and other known conditions, and consider the forming and welding process of the material. Choose an appropriate material. Material selection should also consider its market source.
2. Determine the structure type
(1) Select the corrugated shape
Choose a more reasonable corrugated shape according to the use, performance, use requirements of the Stainless Steel Braided Sleeve, as well as the performance and manufacturing characteristics of various waveforms. In general, most choose U-shaped corrugation and so on.
(2) Determine the number of layers of stainless steel braided casing
The number of layers of stainless steel braided casing is determined according to the use of stainless steel braided casing, working pressure, stiffness, working medium and other factors. In the case of high working pressure, the stainless steel braided casing with multi-layer structure is generally used. For the multi-layer stainless steel braided casing, the number of layers and the wall thickness of the single layer should be reasonably selected.
(3) Preliminary assessment of whether it should be used in conjunction with other elastic components
In some cases, the Stainless Steel Braided Sleeve is used in parallel with the coil spring. These cases are: in order to improve the measurement accuracy; in the case of relatively high working pressure; in the case of shock load.
(4) Select the structural type of both ends of the Stainless Steel Braided Sleeve
To select the structural type of the two ends of the Stainless Steel Braided Sleeve, the forming process of the two ends, the welding process and the structural limitations of the whole system should be considered.
(5) Consider whether a guide device is required
When the effective length of the stainless steel braided casing is relatively long, in order to avoid columnar instability during the working process, it should be considered to increase the guide device. For example, Stainless Steel Braided Sleeve for valves are generally provided with guides.
(6) Consider whether to use a reinforcing ring
In order to meet the requirements of higher working pressure, the Stainless Steel Braided Sleeve can be reinforced with a reinforcing ring, or adopt a multi-layer structure, or a combination of these two structures can also be applied. The reinforcement ring is a local reinforcement, and the multi-layer structure is an overall reinforcement.
3. Design Calculation and Selection of Structural Parameters of Stainless Steel Braided Sleeve
The performance of the stainless steel braided casing depends on the structure of the stainless steel braided casing. The main structural parameters of the stainless steel braided casing include inner diameter, outer diameter, wall thickness, wave pitch, wave thickness, number of corrugations, number of layers, size of matching parts at both ends and Effective length, total length, etc. In general, users of Stainless Steel Braided Sleeve should choose Stainless Steel Braided Sleeve from relevant standards and product samples of manufacturing units, rather than designing new products. This minimizes problems in development, while reducing manufacturing costs and shortening the manufacturing cycle.
4. Design and calculation of performance parameters of stainless steel braided casing
After the main structural size parameters of the stainless steel braided casing are initially determined through design calculation or type selection, the performance parameters of the stainless steel braided casing are designed and calculated.
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