摘要
广州蓄能水电厂A厂调速器液压控制系统测压阀卡阻、电磁阀卡涩是其检修维护过程中的痼疾,通过分析和研究提出,将测压阀解体检查及清洗的周期由每年2次调整为5年1次,减少人为拆装对测压阀精密度的影响,并将调速器用油更换为广蓄B厂使用的Nuto H(力图)68号液压油,较好地解决了调速器这两种长期困扰电厂安全生产的故障难题,提高了机组运行可靠性,保证了电厂的安全生产。
The faults of pressure valve blockage and solenoid valve jamming of governor＇s hydraulic control system in the Plant A of Guangzhou Pumped Storage Power Station often occurred. Based on the analyses and studies, it is suggested that the disintegration inspection and cleaning cycle of pressure valve should be adjusted from 2 times per year to one time per 5 years to reduce the impact of disassembly on valve precision, and the hydraulic oil for governor should be replaced with No. 68 Nuto H hydraulic oil used in Plant B. These treatments have satisfactorily solved two faults of governor and improved the reliability of unit operation and ensured the operation safety of station.
出处
《水力发电》
北大核心
2014年第11期55-57,88,共4页
Water Power
关键词
调速器
液压控制系统
测压阀
电磁阀
缺陷处理
广州蓄能水电厂
governor, hydraulic control system
pressure valve
solenoid valve
defect treatment
Guangzhou Pumped StoragePower Station
