When the water hits, the impact of the pipeline zigzag section is greater. Therefore, the user should follow the requirements of the operating procedures, such as slow heating, pressure stabilization, decreasing instantaneous flow and pressure change, to prevent water shock. Used at high temperature Sandblasting pipe The correction shall be carried out according to the correction coefficient of working pressure and temperature of sandblasting pipe under high temperature, and the additional working pressure shall be reduced below to ensure its application under safe conditions.
The material of sandblasting pipe is stainless steel. The reactive anions (such as sulfur and chloride ions) generally present in the medium are easy to passivate the stainless steel film. In small base metal corrosion holes, they are the active center where pitting occurs. The metal surface potential of the corrosion hole is negative, and the metal surface potential of the corrosion hole is external, external and internal holes. The active micro galvanic corrosion cell is formed under the passivation condition, and the cell with large cathode anode area is smaller than that with small anode current structure. NT density is very high, and corrosion holes are very fast.
Under the dynamic condition, the sand blasting pipe is often damaged by fatigue cracks under the effect of cyclic load. This kind of damage is a normal problem. In order to extend the service life, the hose shall be correctly planned and installed without deformation and other additional stresses.
Water hammer is a pressure transient process caused by the sudden change of medium activity and the change of fluid momentum in the pipeline. It is a special vibration phenomenon caused by the instability of pipe activities. The pressure wave passing through the pipeline rises and falls sharply, which is similar to the noise caused by hammering the pipeline with a hammer.
You are familiar with it, but you may not know its application environment. If it is not properly used, it will lead to material waste and serious risks. stay Sandblasting pipe In the application environment, the following five elements need to be considered.