超厚管板深孔加工工艺的研究及应用  

Research and application of deep hole machining technology for ultra-thick tube sheet

作　　者：廉松松 关庆鹤[1,2] 王立昆 李国骥[1] LIAN Songsong;GUAN Qinghe;WANG Likun;LI Guoji(Harbin Boiler Co.,Ltd.,Harbin 150046,China;State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers,Harbin 150046,China)

机构地区：[1]哈尔滨锅炉厂有限责任公司,哈尔滨150046 [2]高效清洁燃煤电站锅炉国家重点实验室,哈尔滨150046

出　　处：《压力容器》2021年第11期82-86,共5页Pressure Vessel Technology

摘　　要：高压加热器是电站辅机的重要设备,体积大,结构复杂,设计温度和压力高,介质为高温高压蒸汽和水。介绍了超厚管板深孔加工工艺,针对蒸汽冷却器管板的结构特点和孔群分布型式进行识别和分析,总结了大长径比、密集孔群深孔加工的难点和控制要点,并通过加工试验对工装夹具、数控程序、加工参数进行了优化和改进,从而完成该管板的生产制造。High pressure heater is an important equipment of power station auxiliary equipment.It has a large volume,complicated structure and high design temperature and pressure.The medium is high temperature and high pressure steam and water.In this paper,the research on deep hole processing technology of ultra-thick tubesheet was introduced,the difficulties and control points of deep hole machining with large aspect ratio and dense hole group were summarized according to the structural characteristics and hole group distribution of tubesheet in steam cooler,and the tooling,NC program and processing parameters were optimized and improved through processing test,so as to complete the production and manufacturing of the tubesheet.

关 键 词：蒸汽冷却器 超厚管板 长径比 深孔加工 

分 类 号：TH162.1[机械工程—机械制造及自动化] TH136