淺析糯扎渡電廠機組運行區(qū)域
發(fā)布時間:2018-12-15 23:05
【摘要】:水輪發(fā)電機組運行穩(wěn)定性是目前國內(nèi)外大中型水輪發(fā)電機組普遍存在而且尚未解決的難題。由于水輪機固有的結(jié)構(gòu)特性,其在某一特定水頭下和負荷運行時蝸殼來流沖角加大,轉(zhuǎn)輪出口會產(chǎn)生或正或負的環(huán)量,導致出現(xiàn)轉(zhuǎn)輪水邊脫流、葉道渦和尾水管渦帶等現(xiàn)象,進而影響機組安全穩(wěn)定運行。分析水輪機組運行穩(wěn)定性,提出水輪機機組運行區(qū)域,優(yōu)化機組運行方式,對于水輪機組長周期安全穩(wěn)定運行有重要意義。
[Abstract]:At present, the operation stability of hydroelectric generating sets is a common and unsolved problem at home and abroad. Due to the inherent structural characteristics of the turbine, the flow angle of the volute increases under a certain water head and load, and the runner outlet will produce either positive or negative annulus, resulting in the phenomena of runner water edge deflow, blade vortex and draft tube vortex, etc. And then affect the safe and stable operation of the unit. It is of great significance for the safe and stable operation of the turbine group to analyze the operation stability of the turbine unit, to put forward the operation area of the turbine unit and to optimize the operation mode of the turbine unit.
【作者單位】: 華能瀾滄江水電股份有限公司糯扎渡水電廠;
【分類號】:TV737
本文編號:2381429
[Abstract]:At present, the operation stability of hydroelectric generating sets is a common and unsolved problem at home and abroad. Due to the inherent structural characteristics of the turbine, the flow angle of the volute increases under a certain water head and load, and the runner outlet will produce either positive or negative annulus, resulting in the phenomena of runner water edge deflow, blade vortex and draft tube vortex, etc. And then affect the safe and stable operation of the unit. It is of great significance for the safe and stable operation of the turbine group to analyze the operation stability of the turbine unit, to put forward the operation area of the turbine unit and to optimize the operation mode of the turbine unit.
【作者單位】: 華能瀾滄江水電股份有限公司糯扎渡水電廠;
【分類號】:TV737
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