Due to the wide variety of pressure pipes, it is impossible to determine a unified span specification. Today, I will take you to learn about its types and let's take a look together. Catalytic Cracking Unit

Usually, the span bracket and suspension hanger of the pipeline can be divided into two categories. Outdoor mounts are different from indoor mounts. Outdoor pipe supports are mainly freestanding, derived and suspended. Indoor pipeline supports are single-column, frame, cantilever, clamp-column and support type. Pipe supports are usually used for fixing between pipes and supports. There are three types of commonly used tube brackets, fixed tube brackets, sliding tube brackets and rolling tube brackets. Sliding pipe supports and rolling pipe supports are used for pipes with large temperature changes. Large diameter single reporting pipes can be composed of single universal frames or extension spring hangers. In the case of a row of pipes, a composite hanger can be used. Each reporting pipe is secured to the composite hanger with individual pipe clamps or pipe brackets. Low-strength pipes such as lead pipes should be installed in wooden grooves or angle iron grooves. Thermal compensation is often required for pipes with higher or lower temperatures. Theoretically, as long as the temperature difference exceeds the limit temperature change, thermal deformation compensation should be considered. There are two common compensation methods.

The active compensation method uses the elastic deformation of a section of the pipeline itself to absorb the cold and hot deformation of the other section of the pipeline. For example, a straight pipe with both ends connected at any angle has the effect of active compensation. The most common situation is when two sections of pipe intersect at least perpendicularly. There are no two straight line segments that directly intersect, the ends are rigid partitions. When the temperature increases, the actual elongations of the two sections are all and al2, respectively. Since the two sections are connected to each other, the bending deformation of one section is caused by the extension of the other section. From the deformation of the two sections, in order to absorb the thermal elongation of the long section, the short section must have a large bending deformation, so the bending stress of the fixed end of the short tube is greater than that of the fixed end of the long tube. According to the general knowledge of mechanics, only if the maximum bending stress is less than the allowable bending stress of the pipeline data, the pipeline will not be damaged, that is, it can actively compensate. In addition to the two pipes connected at a right angle, Shangyin has several other active compensation methods. When the cold and hot deformation of the pipes cannot be actively compensated, the compensation method must be selected for compensation. Commonly used compensation devices can be divided into three categories: telescopic tube compensation devices, convex compensation devices and filler through-channel compensation devices. The straight tube in the kink compensation device is twisted into a certain shape. The principle of action of the commonly used bow-shaped and bag-shaped compensating tubes is to use the elastic deformation of the smaller rigid folded tubes to compensate for the cold and hot elongation of the straight tube sections at both ends. The return pipe is made of specially welded steel pipe and is connected to the pipe by welding or flange. Bag-shaped folded tube compensators can be divided into three types: lubricated, wrinkled and wavy; generally lubricated folded tubes with diameters less than 250 mm and wrinkled or corrugated folded tubes with diameters greater than 250 mm.