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设计保证流量是确定无调节水库的小型水电站装机容量的依据.本文结合《汉中地区实用水文手册》的编制,提出了推算保证流量的简捷方法及经验公式,供本区和其它地区小型水电站设计参考试用.现将分析结果简述于后:一、有实测日平均流量时保证流量的确定在水文计算中,一般用日平均流量历时曲线来反映日平均流量的统计规律.本次对我区江西营、铁锁关、酉水街……等8个水文站的实测日平均流量,分别用长系列Q_(日均长)和丰、平、枯三个典型年的Q_(日均典)及中水年的Q_(日均中)一年,三种不同年数资料绘制成的三条日平均流量历时曲线,比较接近(见图1).
The design assurance of flow rate is the basis for determining the installed capacity of a small hydropower station without regulation reservoirs.This paper presents a simple method and empirical formula for predicting the flow rate in connection with the preparation of “Handbook of Practical Hydrology in Hanzhong Region” for the design reference of small hydropower stations in this area and other regions Trial analysis. Now the analysis of the results outlined in the following: First, there is a measured daily average flow to ensure that the flow is determined in the hydrological calculation, the average daily flow over time curve to reflect the average daily flow statistics. Camp, Tiegosuan, and Yushui Street, etc. The measured daily average daily flow rates of eight hydrological stations are respectively calculated by using long series of Q_ (average daily length) and Q_ (average daily average) of three typical years of abundance, flatness and dryness, and Mid-water year Q_ (average daily) a year, three different years of data drawn three daily average flow duration curve, closer (see Figure 1).