公开(公告)号：US20200333272A1

公开(公告)日：2020-10-22

申请号：US16958753

申请日：2018-10-25

Applicant: NANJING TECH UNIVERSITY

Inventor： ZHIRONG WANG ,  SHUOXUN SHEN ,  SHENGPING ZHAO ,  JUNCHENG JIANG ,  XUE'E ZHAO ,  ZHAN DOU

IPC: G01N25/02 ,  G01N17/04

Abstract: Disclosed is a method for predicting corrosion and spontaneous combustion of sulfur-related petrochemical equipment. The method solves the issues in the existing techniques that includes narrow predicting range, high workload in installation and maintenance, and time lag in predicting corrosion and spontaneous combustion inside equipment. The method comprises a step of a dual index system prediction, which includes a step of monitoring a temperature and a step of detecting SO2 gas generated by spontaneous combustion. The time when spontaneous combustion occurs can be accurately calculated by using a fitted quantitative relationship formula generated by the spontaneous combustion of corrosion products. The method has a low Labor cost. The method has a low labor cost and, does not require on-site gas detection to be carried out by means of manual detection, which both reduces the cost and ensures the detection accuracy.