生态机组不同布置形式过渡过程研究  

Study on transient process of different arrangement forms of ecological unit

作　　者：赵修龙[1] 张健[1] 何露[1] 

机构地区：[1]河海大学水利水电学院,南京210098

出　　处：《南水北调与水利科技》2014年第5期11-13,共3页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金(51379064);国家重点实验室开放基金(2013B116);江苏省自然科学基金(BK20130839)

摘　　要：在一些已建的大中型水电站中,为了保护水电站下游生态环境,需要在原引水管道中通过岔管分出一条引水管道以保证下游所需生态流量。可通过在引水管道中安装生态机组,来利用生态流量发电。生态机组的布置可分为两种形式:室后分叉、室前分叉。前一种布置形式中,由于两台机组的引水管道共用调压室,使得生态机组与原系统大机组之间相互的水力干扰较大,原机组负荷变化对生态机组的影响大于生态机组对原机组的影响;后一种布置形式中,两台机组拥有独立调压室,各自独立运行,相互之间水力干扰很小。In some constructed large and medium hydropower stations, in order to protect the ecological environment of downstream, a new water pipeline is usually developed through the fork tube to ensure the downstream ecological flow. An ecological unit can be installed in the new water pipeline to generate electricity. There are two arrangement forms for the ecological unit： fork tube located behind the surge tank and in front of the surge tank. For the first arrangement form, the two units share the same surge tank, resulting in large hydraulic disturbance between the ecological unit and original unit. The load change of the original unit can have greater impact on the ecological unit than that of the ecological one on the original one. For the latter arrangement form, each unit has its own surge tank, resulting in insignificant hydraulic disturbance between the two units. The two units can operate independently.

关 键 词：生态机组 生态流量 布置形式 过渡过程 水力干扰 岔管 调压室 

分 类 号：TV732.4[水利工程—水利水电工程]