核电厂凝汽器立管式疏水热力计算方法  

Drain Thermodynamic Calculation Method for Vertical Drain Received Pipe of the Nuclear Power Condenser

作　　者：黄美华 刘星 HUANG Mei-hua;LIU Xing(Guangxi Fangchenggang Nuclear Power Company Limited, Fangchenggang 538001,China;China Nuclear Power Design Company Limited(shenzhen), shenzhen 518031,China)

机构地区：[1]广西防城港核电有限公司,防城港538001 [2]深圳中广核工程设计有限公司,深圳518031

出　　处：《汽轮机技术》2018年第1期19-22,68,共5页Turbine Technology

摘　　要：为了合理进行核电厂凝汽器立管式疏水扩容装置设计,提高二回路疏水可靠性和运行安全,提出了凝汽器立管扩容疏水闪蒸计算方法。通过建立数学模型,利用Excel VBA编程,编写了适用于工程应用的计算软件。以某滨河核电厂为例,针对两种工况精确计算出了疏水闪蒸蒸汽流量、压力、流速等热力参数值。并针对立管尺寸变化、再循环水喷淋变化进行分析计算,给出立管压力相应变化曲线。介绍的计算方法和软件,为核电厂疏水立管设计、问题分析提供了新思路和工具。In order to obtain optimum vertical drain received pipe design in nuclear power condenser,the writer raise the flashing calculation method for it.So,it can improve the oprating reliability and security of the drain in second circle for the nuclear power plant.After established mathematics model,the writer compiled the flashing-drain calculation software via EXCEL VBA programme.For example in two cases of one coastal nuclear power station,the write calculate out exactitudely the flashing steam flowrate,the operating pressure,the steam velocity etc.thermol paramater value of the drain flashing process in vertical type drain device.And,the writer calculate and generate two curves,one variation curve of vertical drain pipe pressure versus pipe cize and the other curve of vertical drain received pipe pressure versus condensate flowrate.The calculate mothed and software in this text provide a new way and tool which it can be used in design,questions analysis for nuclear power plant vertical drain pipe.

关 键 词：核电厂 凝汽器 疏水立管 闪蒸降压 计算 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]