人民黄河
人民黃河
인민황하
Yellow River
2013年
12期
122-124
,共3页
水轮机参数%抗磨蚀措施%多泥沙%高水头%泾河东庄水库
水輪機參數%抗磨蝕措施%多泥沙%高水頭%涇河東莊水庫
수륜궤삼수%항마식조시%다니사%고수두%경하동장수고
turbine parameter%anti abrasion measures%more sediment%high head%Jinghe Dongzhuang Reservoir
东庄水库电站运行水头高、变幅宽，过机泥沙含量大，水轮机过流部件将遭到磨蚀破坏。借鉴已运行的黄河小浪底、西霞院、万家寨等多泥沙电站水轮机参数选择和抗磨措施，分析电站主要参数，从保障安全运行、减轻磨蚀破坏的角度初步选定东庄电站发电机组的额定比转速、比速系数、单位转速、单位流量等参数。原型水轮机参数如下：型号HL
東莊水庫電站運行水頭高、變幅寬，過機泥沙含量大，水輪機過流部件將遭到磨蝕破壞。藉鑒已運行的黃河小浪底、西霞院、萬傢寨等多泥沙電站水輪機參數選擇和抗磨措施，分析電站主要參數，從保障安全運行、減輕磨蝕破壞的角度初步選定東莊電站髮電機組的額定比轉速、比速繫數、單位轉速、單位流量等參數。原型水輪機參數如下：型號HL
동장수고전참운행수두고、변폭관，과궤니사함량대，수륜궤과류부건장조도마식파배。차감이운행적황하소랑저、서하원、만가채등다니사전참수륜궤삼수선택화항마조시，분석전참주요삼수，종보장안전운행、감경마식파배적각도초보선정동장전참발전궤조적액정비전속、비속계수、단위전속、단위류량등삼수。원형수륜궤삼수여하：형호HL
Dongzhuang Reservoir Power Station operates with high water head and wide amplitude. The sediment concentration passing through the turbines is high and the wet components of the turbines will be suffered abrasion damage. Learning from the Yellow River Xiaolangdi,Xixiayuan, Wanjiazhai Hydropower Station and other heavy sediment turbine parameters,it selected and adopted the anti abrasion measures. It analyzed the main parameters of power station,from the guaranteeing safe operation and reducing abrasion damage point of view and initially selected Dong-zhuang Power Station turbines rated than speed,coefficient of speed ratio,unit speed,unit flow and other parameters. Prototype turbine parameters are as follows:Model:HL(114)-LJ-230;Rated output Nr =41. 1 MW;rated head Hr =181 m;runner diameter D1 =2. 3 m;rated flow Qr =25. 25 m3/ s;rated efficiency ηr =91. 5%;rated speed nr =375 r/min;suction height Hs = -5. 88 m;apparatus cavitation coefficient σZ =0. 083 3;specific speed ns =114 m·kW;Coefficient of speed ratio k=1 539.
