1734-IA2

1734-IA2

1734-IA2

1734-IA2

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福建光沃自动化设备有限公司       
联系人    ：欧工（销售经理）                                         
手机      ：18030229053
电话      ：0592-5709825
QQ        ：2479261344                       
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信用=财富  诚信=财富  共赢=财富

当生产过程处在稳定工况时,被加热物料的流量、压力和温度保持不变，炉出口温度和炉膛温度均处于相对平衡状态，调节阀也保持一定的开度，此时炉出口保持在给定值上。当扰动或工艺波动时，破坏了平衡工况时，串级控制系统便开始了其控制过程，通过简单的 CSC 模块编程就可以实现复杂的串级控制过程。加热炉模块组态图如下：


控制系统的实现
系统共配备了 1 个控制站， 2 个操作站。控制采用冗余方式，提高了系统的可靠性。控制站负责数据的采集和处理，并进行控制算法的运算输出，操作站负责提供人机操作界面，同时也作为工程师站进行组态。
系统输入输出点数如下：

1、模拟量输入：温度 63 点
标准信号 4-20mV95点
2、模拟量输出：标准信号 4-20 mA46 点
3、软件开发： 利用 JX-300 X 提供的资料，开发了友好，易用的全汉字界面，包括工艺流程图，控制分组图，趋势曲线图,参数修改图等页面，容易掌握和操作。利用系统提供的自定义语言程序来实现某些复杂的控制方案。
应用中的一些问题解决办法
1、操作优化问题：
提高精度及稳定性：对某些流量 (如原料气、燃料油、蒸汽等) 、液位、压力等进行温度、压力、密度、组分补偿，提高了测量信号的灵敏度。同时采用限制变化率的滤波方法，消除测量信号中的幅度大，频率高的噪声，例如对炉膛负压等作滤波处理后，测量信号的平稳性得到极大的改善。

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