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1号机31—25—7型,制造厂编号第17台。1969年10月投产。2号机N25—35—1型,制造厂编号第3台。1970年8月投产。两台机末三级叶片历次测频表明:投产初期切向Ao型振动频率略有下降.运行1～2年后趋于稳定。1号机第10压力级切向Ao型振动频率低于244周/秒的2片进行了调频处理。机内疏水:1号机1969年12月,2号机安装时均按制造厂来文作了改进。1号机在1970年12月,2号机安装时,先后拆除第12压力级集水环。一、事故及处理1、1、2号机在试运转及投产初期发生过第12压力级叶片水击弯扭,经热校直后运
No. 1 machine 31-25-7 type, manufacturer number 17th. Put into operation in October 1969. No. 2 machine N25-35-1 type, the third factory number. August 1970 put into operation. The frequency measurements of the last three leaves of the two machines showed that the vibration frequency of the tangential Ao type decreased slightly during the initial operation, and stabilized after 1-2 years of operation. Unit 1, No. 10 pressure level tangential Ao-type vibration frequency of less than 244 weeks / sec 2 were FM processing. Machine Hydrophobic: Unit 1 December 1969, Unit 2 installed according to the factory made an improvement. Unit 1 In December 1970, Unit 2 was installed, the No.12 pressure-level water-collecting ring was successively dismantled. First, the accident and treatment 1,1,2 in the early commissioning and commissioning of the first 12-pressure blade water hammer bending, straightening after the heat transport