汽轮机定滑压曲线简化计算方法
发布时间：2019-04-21 12:12
【摘要】：为了简捷获得较精确的汽轮机定滑压曲线,分析了主汽压力变化时机组热力系统变工况实际特性,基于高压缸效率实际变化非线性假设,在忽略随主汽压力和热耗率线性变化的其它热力参数前提下,结合调门流量特性曲线,提出了汽轮机定滑压曲线简化计算方法,以某350MW和某600MW机组的性能试验数据为例进行验证,结果表明,简化计算获得的定滑压曲线斜率与试验结果偏差在3%以内。
[Abstract]:In order to obtain the accurate constant slip pressure curve of steam turbine, the actual characteristics of the thermal system of the unit under variable working conditions are analyzed when the main steam pressure changes, and based on the nonlinear assumption of the actual variation of the efficiency of the high pressure cylinder. On the premise of neglecting other thermodynamic parameters, which vary linearly with the main steam pressure and heat consumption rate, a simplified calculation method of constant slip pressure curve of steam turbine is put forward based on the characteristic curve of regulating gate flow. Taking the performance test data of a certain 350MW and a 600MW unit as an example, the results show that the slope of the constant slip pressure curve obtained by the simplified calculation is less than 3% from the test results.
【作者单位】： 西安热工研究院有限公司;
【分类号】：TM621.3
，
本文编号：2462195
[Abstract]:In order to obtain the accurate constant slip pressure curve of steam turbine, the actual characteristics of the thermal system of the unit under variable working conditions are analyzed when the main steam pressure changes, and based on the nonlinear assumption of the actual variation of the efficiency of the high pressure cylinder. On the premise of neglecting other thermodynamic parameters, which vary linearly with the main steam pressure and heat consumption rate, a simplified calculation method of constant slip pressure curve of steam turbine is put forward based on the characteristic curve of regulating gate flow. Taking the performance test data of a certain 350MW and a 600MW unit as an example, the results show that the slope of the constant slip pressure curve obtained by the simplified calculation is less than 3% from the test results.
【作者单位】： 西安热工研究院有限公司;
【分类号】：TM621.3
，
本文编号：2462195
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