| 汽轮机背压变化对机组功率增量的影响 |
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| 引用本文： | 董丽娟,张春发,张燕,张润盘.汽轮机背压变化对机组功率增量的影响[J].电力科学与工程,2006(1):37-40. |
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| 作者姓名： | 董丽娟 张春发 张燕 张润盘 |
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| 作者单位： | 华北电力大学,动力工程系,河北,保定,071003;华北电力大学,动力工程系,河北,保定,071003;华北电力大学,动力工程系,河北,保定,071003;华北电力大学,动力工程系,河北,保定,071003 |
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| 摘 要： | 汽轮机末级通常处在超临界状态。不考虑末级的某些变工况特性,在确定背压变化对机组功率增量影响时,以汽轮机功率方程为基础,对超临界工况下机组功率增量进行分析计算,推导出理想状态的功率增量计算公式;考虑到影响末级的某些变工况特性后,对机组功率增量进行了修正计算,提高了计算的实用性和精确度。
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| 关 键 词： | 背压 功率增量 超临界 修正计算 |
| 文章编号： | 1672-0792(2006)01-0037-04 |
| 修稿时间： | 2005年12月15 |
Effect of Back Pressure Variation of Steam Turbine on Unit Power Increment |
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| DONG Li-juan,ZHANG Chun-fa,ZHANG Yan,ZHANG Run-pan.Effect of Back Pressure Variation of Steam Turbine on Unit Power Increment[J].Power Science and Engineering,2006(1):37-40. |
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| Authors: | DONG Li-juan ZHANG Chun-fa ZHANG Yan ZHANG Run-pan |
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| Abstract: | The final stage is often in supercritical state. When variable conditions are not considered and the effect of back pressure on unit power increment is determined, the effect of supercritical condition on the power increment is investigated based on the turbine power equation. The formulation of power variation with perfect state is established. Considering the effects of variable conditions on final stage, the unit power is corrected, the practicability and accuracy of the calculation is further improved. |
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| Keywords: | back pressure power increment supercritical correction computation |
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