人民长江
人民長江
인민장강
Yangtze River
2015年
21期
80-83,109
,共5页
纯机械过速保护装置%事故配压阀%水轮发电机组
純機械過速保護裝置%事故配壓閥%水輪髮電機組
순궤계과속보호장치%사고배압벌%수륜발전궤조
purely mechanical overspeed protector%emergency distributing valve%hydro-generator unit
水轮发电机组过速保护系统主要是由事故配压阀和纯机械过速保护装置组成. 在机组发生过速时,机组的过速保护系统会按照设计流程准确动作、及时关闭导叶接力器,以使机组停机,避免水轮发电机组发生飞逸现象. 因此,过速保护系统设计方案质量的优劣,直接关系到机组运行的安全. 结合瀑布沟和深溪沟2座水电站水轮发电机组过速保护系统的实际应用情况,以及过速保护系统的设计原理,推荐了一种能适合大中型水轮发电机组过速保护系统的设计方案,以便为大中型水电站机组过速保护系统的设计或升级改造提供参考与借鉴.
水輪髮電機組過速保護繫統主要是由事故配壓閥和純機械過速保護裝置組成. 在機組髮生過速時,機組的過速保護繫統會按照設計流程準確動作、及時關閉導葉接力器,以使機組停機,避免水輪髮電機組髮生飛逸現象. 因此,過速保護繫統設計方案質量的優劣,直接關繫到機組運行的安全. 結閤瀑佈溝和深溪溝2座水電站水輪髮電機組過速保護繫統的實際應用情況,以及過速保護繫統的設計原理,推薦瞭一種能適閤大中型水輪髮電機組過速保護繫統的設計方案,以便為大中型水電站機組過速保護繫統的設計或升級改造提供參攷與藉鑒.
수륜발전궤조과속보호계통주요시유사고배압벌화순궤계과속보호장치조성. 재궤조발생과속시,궤조적과속보호계통회안조설계류정준학동작、급시관폐도협접력기,이사궤조정궤,피면수륜발전궤조발생비일현상. 인차,과속보호계통설계방안질량적우렬,직접관계도궤조운행적안전. 결합폭포구화심계구2좌수전참수륜발전궤조과속보호계통적실제응용정황,이급과속보호계통적설계원리,추천료일충능괄합대중형수륜발전궤조과속보호계통적설계방안,이편위대중형수전참궤조과속보호계통적설계혹승급개조제공삼고여차감.
The overspeed protection system of hydro-generator unit is mainly composed of emergency distributing valve and purely mechanical overspeed protector. When the generator unit runs over the speed limit, the overspeed protection system will operate accurately according to the designed procedures, close the guide vane servomotor immediately, and shut down the unit to avoid runaway of the unit. Therefore, the quality of the design schemes of overspeed protection system is directly related to the safe operation of the unit. In combination of the application of the overspeed protection system of hydro-generator units in Pub-ugou Hydropower Station and Shenxigou Hydropower Station, a design scheme of overspeed protection system suitable for medium and large hydro-generator units is recommended according to related design principles of overspeed protection system to provide reference for the design and improvement of the overspeed protection system of medium and large hydro-generator units.
