Method and system for preventing tension fracture of ultra-supercritical boiler based on boiler inner wall temperature

• Main Authors: YAN XIAOHUA, LI WANG, CUI YIMIN, LOU YUMIN, BAO TING, WANG XIANMING, HUANG HUAJUN, ZHAO WEIWEI
• Format: Patent
• Language: Chinese; English
• Published: 08.08.2023
• Subjects: BLASTING; CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODS OF STEAM GENERATION; PHYSICS; STEAM BOILERS; STEAM GENERATION; WEAPONS

The invention discloses a method and a system for preventing tension cracking of an ultra-supercritical boiler based on furnace inner wall temperature, and the method comprises the steps: pre-selecting a boiler tension cracking risk position, simulating the real-time temperature field distribution of a boiler through a preset model, and obtaining the simulation temperature of the risk position; and real-time measured temperatures of part of the risk positions are obtained, real-time temperature field distribution is corrected through the real-time measured temperatures, and early warning regulation and control are conducted on boiler operation parameters according to the temperature boundary threshold value and the corrected simulation temperature. On the basis of an existing boiler temperature monitoring platform, a risk position wall temperature measuring point is added, then simulated boiler temperature distribution is corrected, the boiler operation temperature working condition can be monitored more accu