快速调峰锅炉汽包寿命的断裂力学方法  

Fracture mechanics applied in service life analysis of the fast peak shaving boiler drum

作　　者：杨星 刘扬[1] 韩春旭[1] 杨洁[1] 

机构地区：[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2011年第6期6-11,共6页Applied Science and Technology

摘　　要：在锅炉的安全性评定和寿命分析时,从锅炉设备构件存在缺陷这一实际情况出发,以断裂力学的观点和方法建立适用于快速调峰锅炉汽包的安全性评定和缺陷疲劳扩展寿命估算的方法,并应用这些规律对裂纹体进行实例断裂分析和缺陷评定,以确保设备构件在使用期间的安全可靠性.In the safety evaluation and service life analysis of a boiler,the actual conditions of defects existed in the boiler equipment parts have been considered.Thus,in order to ensure the safety and reliability of the boiler equipment parts,suitable methods for safety evaluation of the fast peak shaving boiler drum and defect fatigue extended life estimation are established based on fracture mechanics,and then applied to analyze the crack body and evaluate the defect occurred in practice.

关 键 词：锅炉汽包 快速调峰 缺陷 断裂力学理论 

分 类 号：TK225[动力工程及工程热物理—动力机械及工程]