某300MW机组供热改造轴向推力计算模型  

Introduction of Axial Thrust Calculation Model for a 300 MW Unit Heating Transformation

作　　者：管伟诗 梁志伟 党丽丽[2] GUAN Weishi;LIANG Zhiwei;DANG Lili(Power Station Services Division of Harbin Electric Corporation,Harbin 150040,China;Harbin Turbine Works Co.,Ltd.,Harbin 150040,China)

机构地区：[1]哈尔滨电气集团电站服务事业部,哈尔滨150028 [2]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《机械工程师》2021年第6期155-157,共3页Mechanical Engineer

摘　　要：300 MW等级火电机组实施供热改造后,汽轮机部分通流级数承受压差改变,因此会对汽轮机转子的推力产生较大影响。为保证机组的安全,在改造前建立正确的力学模型,进行分析核算。文中以国内某300 MW机组由纯凝机组改造为回转隔板供热抽汽为例,介绍了供热改造后汽轮机推力计算分析模型。After the implementation of heat supply reform for 300 MW Thermal power units,the pressure difference of some flow passage stages of steam turbine changes,which will have a great impact on the thrust of steam turbine rotor.In order to ensure the safety of the unit,this paper establishes the correct mechanical model and carried out analysis and calculation before the transformation.Taking a 300 MW unit transformed from a pure condensing unit into a rotary diaphragm heating and extraction unit as an example,the calculation and analysis model of steam turbine thrust after heat supply transformation is introduced.

关 键 词：汽轮机 通流 供热 推力计算 

分 类 号：TK263.1[动力工程及工程热物理—动力机械及工程]