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全聚德集团王府井烤鸭店1号锅炉是1台卧式内燃干背式燃气锅炉,是该单位唯一的生产中使用的蒸汽锅炉。2002年内部检验时,发现锅炉炉胆与后管板T形连接处有38条裂纹,其缺陷的数量和严重程度非常少见,被迫停炉并做修理。修理后仍有裂纹难以消除,锅炉不能使用,影响了烤鸭店正常经营。受使用单位委托,借鉴弹塑性断裂力学COD法在压力容器上的运用,用COD法对该锅炉进行了安全分析,提出了修理方案和监督使用的技术措施,指导了锅炉现场修理工作,并在保证安全的前提下,允许锅炉监督
Quanjude Wangfujing roast duck shop No. 1 boiler is a horizontal internal combustion dry-back gas boiler, the unit is the only production of steam boilers used. During the internal inspection in 2002, 38 cracks were found on the T-shaped connection between the boiler furnace and the rear tube sheet, and the number and severity of defects were very rare. They were forced to shutdown and repaired. After the repair is still difficult to eliminate cracks, the boiler can not be used, affecting the normal operation of roast duck restaurant. Commissioned by the user, the use of elastic-plastic fracture mechanics COD method in the pressure vessel on the use of the COD method of the boiler safety analysis, put forward the repair program and supervision of the use of technical measures to guide the boiler repair work at To ensure safety under the premise of allowing boiler supervision