摘要
针对液压机构液压系统气体污染的危害问题,介绍了高压断路器液压机构的工作原理,分析了液压系统气体污染产生的途径,重点论述了气体污染对系统运行的危害——造成渗漏油、动作时间不稳定、气蚀等现象,最后提出了防范气体污染的措施,主要从结构设计和整体布置上避免气体的存留,并采取抽真空或加装排气阀的方法进行排气处理,有效控制液压系统的气体污染。
The working pr/nciple of hydraulic mechanism for high voltage circuit breaker is introduced, and the source of air contamination in hydraulic system is analyzed. The harms of the air contamination to the circuit breaker are emphatically discussed, including oil leakage, unstable action time, and cavitation. Moreover, the methods for preventing air contamination are proposed, such as avoiding the air retention through improvement of structure design and whole layout and exhausting the air by vacuum exhaust valve, for the purpose of controlling air contamination effectively.
出处
《高压电器》
CAS
CSCD
北大核心
2011年第9期84-87,共4页
High Voltage Apparatus
关键词
高压断路器
液压系统
空气污染
气蚀
排气阀
high voltage circuit breaker
hydraulic system
air contamination
cavitation
exhaust valve
