| 循环冷却水旋转滤网控制系统改造 |
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| 引用本文： | 杨勇. 循环冷却水旋转滤网控制系统改造[J]. 热力发电, 2007, 36(9): 66-68 |
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| 作者姓名： | 杨勇 |
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| 作者单位： | 国华北京热电分公司,北京,100025 |
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| 摘 要： | 结合循环冷却水旋转滤网控制系统改造,介绍了循环水旋转滤网系统的组成及其控制系统的硬件结构、设备选型和控制功能。针对其在安装调试及使用过程中出现的旋转滤网后水位测量值波动问题,分析认为由电噪声干扰引起。经将所有信号电缆更换为屏蔽电缆后,水位测量值稳定,波动消失。
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| 关 键 词： | 火电厂 循环冷却水 旋转滤网 程序控制系统 |
| 文章编号： | 1002-3364（2007）09-0066-03 |
| 修稿时间： | 2006-10-08 |
IMPROVING MEASURES FOR SEQUENCE CONTROL SYSTEM OF THE ROTARY STRAINER FOR CIRCULATORY COOLING WATER |
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| YANG Yong. IMPROVING MEASURES FOR SEQUENCE CONTROL SYSTEM OF THE ROTARY STRAINER FOR CIRCULATORY COOLING WATER[J]. Thermal Power Generation, 2007, 36(9): 66-68 |
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| Authors: | YANG Yong |
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| Affiliation: | Guohua Beijing Thermal Power Branch Company, Beijing 100025, PRC |
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| Abstract: | The components in rotary strainer system of the circulatory water,as well as the hardware structure,type selection of e- quipment,and control function of the control system have been presented.Directing against the problem concerning measured value fluctuation of the water-level after rotary strainer,which occurred in process of installation,debugging,and application,it is be- lieved from analysis that the flucturation of measured value is resulted from interference of the electric noise,after all the signal cables being replaced by using shielded cables,the fluctuation of water-level has disappeared. |
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| Keywords: | thermal power plant circulatory cooling-water rotary strainer sequence control system |
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