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随县地处鄂北,年降雨量800～1,000毫米,主要集中在5～9月。涢水流域面积1,OOO余公里~2,平均年来水量3亿米~3左右。目前建有梯级电站9处,装机3,625千瓦(见附图)。由于地形条件的限制,只在涢水之首建了一座调节水库(大洪山电站),承雨面积157公里~2,有效库容6,000万米~3,下游为避免淹没损失,都是修建的低水头溢流式电站。因此,大洪山电站水库的蓄水保水,不仅关系到本站的发电效益,还关系到下游梯级电站能否充分得到利用。为了提高梯级电站的经济效益,1982年,我们在梯级电站的运行管理中作了以下工作:
Suizhou County is located in northern Hubei, the annual rainfall of 800 to 1,000 mm, mainly concentrated in May to September. Lushui drainage area of 1, OOO km ~ 2, the average annual water volume of 300 million meters to 3 or so. Currently there are 9 cascade hydropower stations, installed 3,625 kilowatts (see photo). Due to the restriction of topographical conditions, only a regulation reservoir (Dahongshan Power Station) was built at the head of Lishui River, bearing rain area of 157 km ~ 2 and effective storage capacity of 60 million m ~ 3. In order to avoid submergence losses, Head overflow type power station. Therefore, the storage and water conservation of the Dahongshan Power Station Reservoir not only relate to the power generation efficiency of this station, but also whether the downstream cascade hydropower stations can be fully utilized. In order to improve the economic benefits of cascade hydropower stations, we made the following work in the operation and management of cascaded hydropower stations in 1982: