| 单元机组启动工况下再热器壁温的计算模型及影响因素 |
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| 引用本文： | 孙奉仲,雷声辉,史月涛,王乃华,黄新元.单元机组启动工况下再热器壁温的计算模型及影响因素[J].动力工程,2004,24(5):721-724,710. |
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| 作者姓名： | 孙奉仲 雷声辉 史月涛 王乃华 黄新元 |
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| 作者单位： | 山东大学,济南,250061 |
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| 摘 要： | 在借鉴稳定工况再热器壁温计算模型的基础上，针对单元机组启动阶段特点推导出适用于该工况下壁温的计算模型，通过模拟计算讨论了启动阶段影响各段再热器壁温的因素，获得了这些因素与壁温间的关系曲线及变化规律，提出了相应阶段预防超温的一些有效措施。图6参7
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| 关 键 词： | 动力机械工程 单元机组 计算模型 启动 再热器壁温 |
| 文章编号： | 1000-6761(2004)05-0721-04 |
Calculation Model of the Reheater's Temperature and Influencing Factors Under the Start-Up of the Unit Plant |
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| SUN Feng-zhong,LEI Sheng-hui,SHI Yue-tao,WANG Nai-hua,HUANG Xin-yuan.Calculation Model of the Reheater''''s Temperature and Influencing Factors Under the Start-Up of the Unit Plant[J].Power Engineering,2004,24(5):721-724,710. |
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| Authors: | SUN Feng-zhong LEI Sheng-hui SHI Yue-tao WANG Nai-hua HUANG Xin-yuan |
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| Abstract: | Based on the establishment of the temperature calculation model of the steady working condition, and according to the characteristics of the phrase of the block unit's start-up, this paper emphasizes on the derivation and presents the new temperature calculation model that can be applied to this phrase. By the analogy calculation, the factors that result in the change of temperature during the phrase are analyzed, and the dependence and the law between these factors and the tube wall temperature of reheater are summarized, and some advice that can be used to this phrase is put forward in this paper. Figs 6 and refs 7. |
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| Keywords: | power and mechanical engineering block unit calculating model start-up tube wall temperature of reheater |
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