大电机技术
大電機技術
대전궤기술
LARGE ELECTRIC MACHINE AND HYDRAULIC TURBINE
2013年
6期
49-51
,共3页
空蚀%水轮机%吸出高度%数值模拟
空蝕%水輪機%吸齣高度%數值模擬
공식%수륜궤%흡출고도%수치모의
cavitation%turbine%suction height%numerical simulation
水轮机空蚀与运行工况密切联系，其影响因素较多。为此针对国内某电站，采用cordon法预估电站空蚀破坏，并与电站实际空蚀破坏比较，进而分解cordon法，从水轮机转轮材料、吸出高度以及负荷利用系数等三方面，分析诱发水轮机空蚀的关键因素，提出相应抗空蚀措施，总结水轮机空蚀研究思路，为水电站设计、安全经济运行及技术改造提供具有实用价值的借鉴意见。
水輪機空蝕與運行工況密切聯繫，其影響因素較多。為此針對國內某電站，採用cordon法預估電站空蝕破壞，併與電站實際空蝕破壞比較，進而分解cordon法，從水輪機轉輪材料、吸齣高度以及負荷利用繫數等三方麵，分析誘髮水輪機空蝕的關鍵因素，提齣相應抗空蝕措施，總結水輪機空蝕研究思路，為水電站設計、安全經濟運行及技術改造提供具有實用價值的藉鑒意見。
수륜궤공식여운행공황밀절련계，기영향인소교다。위차침대국내모전참，채용cordon법예고전참공식파배，병여전참실제공식파배비교，진이분해cordon법，종수륜궤전륜재료、흡출고도이급부하이용계수등삼방면，분석유발수륜궤공식적관건인소，제출상응항공식조시，총결수륜궤공식연구사로，위수전참설계、안전경제운행급기술개조제공구유실용개치적차감의견。
The hydraulic turbine cavitation is related with power station operation, and it is influenced by much reasons. Therefore, by comparison with actual cavitation damage, the estimate value which calculated by the cordon method is precise. Based on the cordon method, the cause of hydraulic turbine cavitation are analyzed from the aspects of runner material, suction height and load utilization coefficient, and the anti-measures of hydraulic turbine cavitation is researched. It is valuable for the safe and economic operation, and also useful for technical reformation in hydroelectric power station.
