项目来源
国家重点研发计划(NKRD)
项目主持人
李会雄
项目受资助机构
西安交通大学
立项年度
2018
立项时间
未公开
项目编号
2018YFB0604403
研究期限
未知 / 未知
项目级别
国家级
受资助金额
725.00万元
学科
煤炭清洁高效利用和新型节能技术
学科代码
未公开
基金类别
未公开
关键词
超临界锅炉 ; 水动力 ; 传热 ; Supercritical boiler ; Hydrodynamic ; Heat transfer
参与者
雷贤良；张一帆；王婷；张翱；殷亚宁
参与机构
西安热工研究院有限公司；东方电气集团东方锅炉股份有限公司；上海锅炉厂有限公司；哈尔滨锅炉厂有限责任公司
项目标书摘要：本年度建立了超高参数运行条件下工质流动与传热数据库框架，参数范围：压力10-35 MPa,温度100-600℃,采用查询表方法可准确预测不同工况条件下的壁面温度。完成实验平台中设备的购置，初步完成实验平台的搭建;开发了基于流动网络系统方法的700℃超超临界锅炉水冷壁设计及水动力特性集成计算技术，并进行水动力安全特性校核，程序计算的壁温分布与电厂数据变化趋势相同，且吻合良好，实现管屏出口温度偏差的计算精度≤10%;针对提出的700℃卧式锅炉，建立水动力与壁温计算模型，对该参数下的锅炉展开炉膛燃烧数值模拟与水动力计算与分析，分析结果表明锅炉设计中受热面和阻力件布置合理。进一步对700℃参数超超临界型对冲燃烧锅炉布置方案进行了优化计算；结合700℃超超临界参数情况及塔式锅炉特点，确定了水冷系统布置规格及材料的选择；完成适合700℃超超临界燃煤锅炉汽水循环系统设计和系统选型研究，先进的水冷壁中间混合系统，提高管间壁温均匀性，提高水冷壁的运行安全性。
Application Abstract: In this year,a database framework for working fluid flow and heat transfer under ultra-high operating conditions has been established.The parameters range from 10 to 35 MPa and 100 to 600 ℃.The wall temperature under different working conditions can be accurately predicted by the look-up table method.The purchase of equipment for the experimental platform is completed and the construction of the experimental platform is basically completed.Based on the flow network system method,the water wall design and integrated calculation technology for hydrodynamic characteristics of 700 ℃ ultra-supercritical boiler has been developed,and the verification of hydrodynamic safety characteristics was carried out.The trend of wall temperature distribution calculated by the program is almost the same as that of the power plant data,and it was in good agreement.The calculation accuracy of the tube panels outlet temperature deviation is less than 10 percent.A calculation model of hydrodynamics and wall temperature is established for 700 ℃ horizontal boiler,and the numerical simulation,hydrodynamic calculation and analysis are carried out.The analysis results show that the heating surface and the resistance part are well arranged in the boiler design.Furthermore,the layout scheme of 700 ℃ ultra-supercritical PI-type counter-fired boiler is optimized.According to the characteristics of Tower Boiler and the condition of 700℃ ultra-supercritical parameters,the water cooling system layout and material are determined.The design and selection of the steam-water circulation system for 700°C ultra-supercritical coal-fired boilers are completed.An advanced water-cooled wall mixing system is designed to improve the uniformity of wall temperature between the tubes and the operational safety of the water wall.
项目受资助省
陕西省
联系人信息
李会雄：huixiong@mail.xjtu.edu.cn
