| 二次再热超临界机组热力系统循环吸热量计算 |
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| 引用本文： | 李建刚,阮涛,李丽萍,石孝民. 二次再热超临界机组热力系统循环吸热量计算[J]. 武汉大学学报(工学版), 2006, 39(1): 80-84 |
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| 作者姓名： | 李建刚 阮涛 李丽萍 石孝民 |
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| 作者单位： | 1. 郑州电力高等专科学校,河南,郑州,450004
2. 三门峡华阳发电有限责任公司,河南,三门峡,472143 |
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| 摘 要： | 以常规热平衡方法和等效热降理论为基础,针对二次再热超临界机组热力系统高低压加热器均设置外置式蒸汽冷却器的特点,经过严格的数学推导,将等效热降理论应用于二次再热超临界机组热力系统循环吸热量计算的研究,并提出了适用于不同类型凝汽式机组的通用数学计算模型.经实例验证,该数学模型简捷、准确,为二次再热超临界机组和其他不同类型凝汽式机组热力系统热经济性的定量计算奠定了基础.
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| 关 键 词： | 二次再热超临界 热力系统 循环吸热量 计算模型 |
| 文章编号： | 1671-8844（2006）01-080-05 |
| 收稿时间： | 2005-05-11 |
| 修稿时间： | 2005-05-11 |
Study of circulation heat calculating model for thermal system in supercritical pressure power unit with second reheat cycles |
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| LI Jiangang,RUAN Tao,LI Liping,SHI Xiaomin. Study of circulation heat calculating model for thermal system in supercritical pressure power unit with second reheat cycles[J]. Engineering Journal of Wuhan University, 2006, 39(1): 80-84 |
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| Authors: | LI Jiangang RUAN Tao LI Liping SHI Xiaomin |
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| Affiliation: | 1. Zhengzhou Electric Power College,Zhengzhou 450004,China; 2. Sanmenxia Huayang Power Company Limited, Sanmenxia 472143, China |
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| Abstract: | The authors first apply basic theory of equivalent heat drop on the common circulation heat calculating model for thermal system in supercritical pressure power unit with second reheat cycles and other kind of condensing steam turbine by mathematical derivation strictly,based on the normal energy balance and theory of equivalent heat drop,aiming at characteristics of thermal system in which there are outer steam coolers that high pressure heater and low pressure heater carry.The calculating results of some actual examples show that the present method is simple and accurate;and it offers a foundation for the quantitative calculation of all kind of condensing steam turbine thermal system. |
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| Keywords: | supercritical pressure power unit with second reheat thermal system circulation heat calculating model |
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