上游串联双调压室系统稳定断面面积设计

发布时间：2018-06-07 20:07

本文选题：水电站 + 串联双调压室　；参考：《水电能源科学》2016年04期

【摘要】：为解决上游串联双调压室系统中调压室稳定断面面积设计的问题,基于托马假定,推导了串联双调压室系统的特征方程,根据霍尔维茨稳定判据得出了上游串联双调压室系统调压室临界断面面积的稳定域,并分析了串联双调压室系统稳定域的变化规律。结果表明,串联双调压室系统稳定域边界线由两条交于一个拐点的曲线组成,在拐点处靠近机组的调压室有最小临界稳定断面面积。最后,推导得出了串联双调压室系统稳定域边界线拐点的解析计算公式,提出了串联双调压室系统调压室临界断面面积的设计原则,为串联双调压室系统调压室临界断面面积的计算提供了理论依据。
[Abstract]:In order to solve the problem of the design of the stable section area of the surge chamber in the upstream series double surge chamber system, the characteristic equation of the series double surge chamber system is derived based on the Thomas assumption. According to Holwitz stability criterion, the stability region of critical cross section area of upstream double surge chamber system is obtained, and the variation of stability region of series double surge chamber system is analyzed. The results show that the boundary of the stability region of the series double surge chamber system is composed of two curves intersecting at one inflection point, and the minimum critical stable section area of the surge chamber near the unit is found at the inflection point. Finally, the analytical calculation formula of the inflection point of the boundary line of the stability region of the series double surge chamber system is derived, and the design principle of the critical section area of the pressure regulating chamber of the series double surge chamber system is put forward. It provides a theoretical basis for the calculation of critical cross section area of the surge chamber in series double surge chamber system.
【作者单位】：武汉大学水资源与水电工程科学国家重点实验室;
【基金】：国家自然科学基金项目(51379159)
【分类号】：TV732.5

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