Abstract:

This article systematically explains the technical sources and key clauses regarding support span in GB/T 17116, GB/T 20801 and SH/T 3073 commonly used for calculating the span of pipe supports and hangers in refining and petrochemical units, analyzes the differences between them and their respective application boundaries, points out the problems in the current version, and introduces the specific requirements for the support span of special types of pipelines such as flow-induced vibration pipelines, providing engineering reference for the selection of pipe support span in refining and petrochemical units.

Key words: support, strength conditions, stiffness condition