Crack Cause Analysis and Repair Methods for Heat Transfer Molten Salt Pipeline of Waste Sulfuric Acid Regeneration Unit
Molten salt has good thermal stability and high heat transfer coefficient,and is used as a high-temperature heat carrier in a waste sulfuric acid regeneration unit.During the operation of the molten salt system of a waste sulfuric acid regeneration unit,the heat transfer molten salt jacket pipeline carrying the molten salt medium leaked several times,affecting the normal operation of the unit.Physical and chemical inspection and testing of pipeline cracks in the leaking area of the heat transfer molten salt piping was carried out,and a repair plan was formulated with the replacement of piping material and improvement of heat tracing as the main contents,which was effective after the implementation of the plan,and the optimization and improvement of the remaining heat transfer molten salt piping was completed in the same way,which effectively ensured the safe and stable operation of the heat transfer molten salt pipeline.
pipelineheat transfer molten saltcrackingrepairmaterialtracing
NETL
NSTL
万方数据
维普
