Method of clamping pipeline leaks

Square boxes cannot withstand pressure well mainly because stress concentration tends to occur at the corners, and under high pressure the structure of the box may deform, resulting in reduced sealing performance and stability. In contrast, a circular design can distribute pressure more evenly, enhancing the overall compressive strength and sealing performance. Therefore, in the design of leak-sealing fixtures, a circular or arc-shaped design is usually more reasonable. .

Thank you for sharing. The circulating water has white foam; the reason is unknown. https://bbs.hcbbs.com/thread-5669817-1-1.html (Source: Haichuan Chemical Industry Forum). The circulating water in the circulating water system is yellow, similar to the color of the Yellow River. https://bbs.hcbbs.com/thread-5667515-1-1.html (Source: Haichuan Chemical Industry Forum)

Square-shaped containers are usually more difficult to withstand internal pressure, for the following main reasons: First, structural shape factors – there is significant stress concentration at the corners of square-shaped containers. When pressure is applied inside the container, the stress level at the corners is much higher than in other areas. For example, in a cubic container, the four vertical walls meet at the corners to form connections that are nearly right angles. This right-angle connection prevents smooth pressure transmission at the corner, resulting in significant stress concentration. In contrast, containers with curved surface shapes such as circular or spherical ones have a relatively uniform stress distribution inside, with no distinct stress concentration points. Surfaces enable pressure to be evenly distributed across the entire container wall, allowing the container to better withstand internal pressure. II. Mechanical properties of materials 1. For the walls of rectangular containers, tensile stress is the primary force acting on them when subjected to internal pressure. Due to the relatively large planar walls of the square-shaped container, under pressure these walls are subjected to significant tensile forces. However, the performance of most materials under tensile stress is limited. Taking common metal materials as an example, although they possess a certain degree of strength, they are prone to plastic deformation or even fracture under continuous tensile stress. 2. Whereas in circular or spherical containers subjected to internal pressure, the material is primarily under a triaxial stress state. This triaxial stress state enables the strength of the material to be fully utilized, thereby improving the container’s capacity to withstand internal pressure. III. Influence of manufacturing processes: The manufacturing process for rectangular containers is relatively complex, especially when it comes to ensuring the sealing and strength at the corners. When welding the corners of square-shaped containers, the presence of the welding heat-affected zone can lead to a decline in the properties of the local material, thereby reducing the overall strength of the container. The manufacturing processes for circular or spherical containers are relatively mature; for example, containers with high strength and good sealing properties can be easily produced using techniques such as spinning or stamping. In summary, square-shaped containers are generally more difficult to withstand internal pressure due to factors such as their structural shape, the way stress is distributed in the materials, and the manufacturing processes used.