虹吸式出水流道真空破坏阀的联动控制分析

发布时间：2018-03-29 09:41

本文选题：南水北调工程　切入点：真空破坏阀　出处：《水利水电技术》2017年02期

【摘要】：为防止泵站系统管路局部位置真空破坏,以虹吸式出水流道真空破坏阀的联动控制为研究对象,分析现地手动控制、现地PLC自动控制、现地硬接线自动控制、远程控制等控制方式的可靠性,研究真空破坏阀的联动工作机制。以南水北调来水调入密云水库调蓄工程为例,研究结果表明:通过增加软启柜硬接线、配置电磁阀按钮箱,在正常运行及事故停机时能够有效实现对水泵机组的保护;在停泵运行时,真空破坏阀打开关闭时间确定为10 s。水泵机组启动及事故停机时真空破坏阀的联动控制方案对同类虹吸式工程的设计运行及控制具有参考价值。
[Abstract]:In order to prevent the vacuum damage in the local position of the pumping station system, this paper takes the linkage control of the vacuum damage valve of the siphon outlet passage as the research object, analyzes the manual control in the field, the automatic control of the PLC in the field, and the automatic control of the hard connection in the field. Based on the reliability of remote control and other control methods, the linkage working mechanism of vacuum damage valve is studied. Taking the project of regulating and storing water from South-to-North Water transfer into Miyun Reservoir as an example, the research results show that the solenoid valve button box can be arranged by increasing the hard connection of soft opening cabinet. In normal operation and accident shutdown can effectively achieve the protection of the pump unit; when the pump operation, The opening and closing time of the vacuum damage valve is determined to be 10 s. The combined control scheme of the vacuum damage valve during the start-up and failure shutdown of the pump unit has reference value for the design, operation and control of the similar siphon engineering.
【作者单位】：北京市水利规划设计研究院;
【分类号】：TV675

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