高强. Realization and Perfect of 350 MW Units Heating Water Collecting Tank Liquid Level Automatic Control[J]. 2015, (1): 109-111. DOI: 10.16056/j.1005-7676.2015.01.031.
Realization and Perfect of 350 MW Units Heating Water Collecting Tank Liquid Level Automatic Control
摘要
辽宁东方350 MW机组采暖集水箱液位自动控制
投产时设计是采用磁翻板就地液位显示加液位接点输出液位高低等信号
配合电气疏水控制系统实现水位自动控制回收系统。运行8年来
该系统经常发生由于液位接点动作故障致使液位自动控制不正常
只能靠人工定期就地控制。为了解决这个问题
从根源上进行了分析
温度是影响原磁翻板液位控制系统正常运行的主要原因
结合原设备的实际状况
在不投入大量改造的基础上又能够解决问题的前提下
利用压力液位的关系特性
提出了相应的改造方案
在实施中得到了非常好的效果
不但设备运行良好同时带来了不菲的经济效益。
Abstract
The production design of Liaoning Oriental 350 MW unit heating water collecting tank liquid level automatic control system is the use of magnetic flap liquid level display and liquid contact output liquid level signal
with electrical hydrophobic control system to realize the water level automatic control recovery system. Having used by 8 years
the system often occurs fault and causes the liquid level automatic control of liquid level is unormal. In order to solve this problem
this article has carried on the analysis from the source
the temperature is the main reason affecting the normal operation of the original magnetic turning plate liquid level control system. Combined with the actual condition of the original equipment
the premise based on not invest a lot of transformation to resolve the problem
using the relationship characteristics of pressure level
put forward the corresponding reform scheme
obtained the very good effect in the application
not only the equipment running well at the same time bring high economic benefits.