Prefabricated steel sleeve, steel direct buried fixed bracket, insulation fixed joint support, call for customization

Description :

　　Steel sleeve steel fixed bracket is a load-bearing bracket that has a comprehensive limiting effect on the load-bearing point pipeline and is a fixed point on the three-dimensional coordinate of the pipeline. It is used in areas of the pipeline where no displacement is allowed. In addition to bearing weight, the fixed bracket also needs to withstand the thermal displacement thrust and moment of the pipeline in all directions, which requires the fixed bracket itself to be a structure with sufficient strength and rigidity. The rooting part of the fixed bracket should be firm and reliable. The fixed bracket is the origin of the pipeline thermal expansion compensation design calculation, and is the part where the internal pressure and external force of the pipeline generate stacking stress. During installation, non fixed and non fixed bracket fixation are not allowed. The steel sleeve steel fixed joint (reinforced fixation) utilizes the high strength and good sealing characteristics of the steel sleeve to successfully solve the difficulties of waterproofing and leakage resistance. Using steel pipes as the outer protective layer has the characteristics of high strength, resistance to damage, and ability to withstand the load on the upper part of the trap. In order to achieve long service life, anti-corrosion treatment is required for the steel outer casing to ensure the performance of the heating pipeline. The pipeline stress decreases to zero with the increase of temperature. When the temperature rises, the compressive stress on the pipeline increases. When the temperature rises to the working temperature, the compressive stress (thermal stress) of the pipeline is still less than the allowable value. emphasize. In this way, the pipeline can operate without compensation devices. Another non compensatory method is the calculation method and stress classification proposed by Beijing Gas Thermal Design Institute in China in recent years. Apply stability analysis and apply the third strength theory. This method fully utilizes the plasticity potential of steel, and is easy to construct without the need for preheating. (1) When determining the use of compensation direct burial method for steel sleeve steel steam insulation steel pipes, only the burial depth is considered because the ground load will not damage the stability of the pipeline, and economic and economic considerations are taken into account. Convenient construction. When using compensatory direct burial method, burial should be done as much as possible. Usually, the thickness of the soil covering is greater than 0.6m and is independent of the diameter of the pipe. (2) When using uncompensated direct burial method.

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• fixed bracket