兰州第二热电厂循环水泵技术改造

μU 33 34fμU 3 EU)D10ugAVol.33，No.32000Ae30AEL ECTRIC POWER 'Mar .，2000AV0YμUTpEE μc3SN_》-国AV4E6. A0iRetrofit of Circulating W ater Pumps in Lanzhou No.2 Cogeneration Power PlantE i-0o't6T 1"Ezμ/2 t6'2%O/hoEU2EAl A!2EA1 iu0N2f"1.ANOYμUMpEEμc3SEzEEa ANOY 730020*2.0D1uE@A0E@μc iENSNOWiO≌t址30 1000382@0@0aq∞°0μc∞≤∈μxEE1 OACeiδi”2∈E0U8圾1CE@Ai2> xa&6+ ;U0 °6£EqON->- EBAb0DDWNE A0i PH< DAO0A09E-0E0-AμA 4 AE-0δ0A 6 AE-£Hho iUB T> 0AO≈∈∈μt IOC°NOEi 91AO%o ε0OHMEEμ+A◎6if 0。A0i oμADS 10ε EnUtNAUxa 1⑥E@AμA0@C6%-NADSOaTaμt 100o0 if10/40 ^E29)-》- EA010OOENWMNEO A0iAbstract: The water supply of circulating water pumps2 CWP£@n Lanzhou No.2 Cogeneration Power Plant was by far in-sufficient.Through rfitingfthe vanes of wheel were increased from the original four to the present sixfthe suction edgewas properly extended forward too and the inlet diameter of wheel was properly enlarged. 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