| 双区加热型汽轮机排汽湿度探针测量方法探讨 |
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| 引用本文： | 章健,庞智,杨善让.双区加热型汽轮机排汽湿度探针测量方法探讨[J].发电设备,2008,22(5). |
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| 作者姓名： | 章健 庞智 杨善让 |
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| 作者单位： | 1. 广西电力工业勘察设计研究院火电部,广西南宁,530023
2. 东北电力大学节能与测控技术研究中心,吉林吉林,132012 |
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| 摘 要： | 介绍了双区加热法测量蒸汽湿度的热力学基本原理,并对探针汽液两相区流动压降进行了计算,得出了判定探针蒸发段管长大于水滴汽化长度的热力学检测标准,为保证探针在测量汽轮机排汽湿度时的准确性提供了理论依据。
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| 关 键 词： | 能源与动力工程 汽轮机 排汽湿度 双区加热法 汽液两相流 水滴汽化长度 |
Turbine Exhaust Wetness Measurement Based on Double-Region-Heating Probe Method |
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| ZHANG Jian,PANG Zhi,YANG Shan-rang.Turbine Exhaust Wetness Measurement Based on Double-Region-Heating Probe Method[J].Power Equipment,2008,22(5). |
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| Authors: | ZHANG Jian PANG Zhi YANG Shan-rang |
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| Abstract: | The basic thermodynamic principle of double-region-heating probe method for steam wetness measurement is being presented,while the pressure drop of steam-liquid two-phase flow in the probe calculated and thus a thermodynamic judgment criteria obtained for determining whether the length of the probe tube's evaporating section is larger than that of the water drop vaporization.This may serve as a theoretical basis for improving the precision of turbine exhaust wetness measurement by probe method. |
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| Keywords: | energy and power engineering steam turbine exhaust wetness doubleregion-heating steam-liquid two-phase flow water drop vaporization length |
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