CI858以太网接口模块,CI858使用指导
主风机组根据总管流量关小防喘阀,备风机组自动逐渐根据总管流量打开防喘阀。
5、直至备风机组出口单向阀关闭或者程序自动指示备机切出装置。
6、HMI自动弹出主备机切机完成指示,操作工首先点击取消切机,然后操作工需要到现场把备风机组出口电动阀手动关闭,最后手动可以把备风机切入安全运行状态。
5.切机运行效果分析CI858以太网接口模块
图5-1主风机组切入系统工艺趋势
由图5-1所示,各曲线含义分析如下:
白色曲线是主风机组防喘阀的输出曲线,在缓慢关闭;
蓝色曲线是备风机组防喘阀的输出曲线,在缓慢打开;
黄色曲线是总管流量的设定值;
绿色曲线是总管流量的实测值;
红色曲线是总管压力的实测值;
紫色曲线是主风机组出口排气压力值;
浅蓝色曲线是备风机组出口排气压力值;
粉色曲线是开始切机标志。
通过以上曲线的走势可以看出,机组在切机过程中,实际总管压力及流量均在设定值附近稳定运行,表明切机过程平稳无波动。
6.两器压差控制过程
图4-1两器压差控制画面
由图4-1所示,分析如下:CI858以太网接口模块
增设了调节偏差死区功能,减少了烟机蝶阀、大小旁通阀频繁调节;
取消了原先设置的爬坡功能,调节更及时有效; PID controller with this. The so-called control can be divided into feedback control and no feedback control. Of course, the PID we discuss has feedback control. The so-called feedback control is nothing more than to participate in the operation to determine the size or direction of the control quantity according to the situation of the controlled quantity. So how to determine the size of the control quantity according to the two controlled quantities? Alas, there are many classifications. The so-called advanced control mode is "advanced" at this point, There are "adaptive control, fuzzy control, predictive control, neural network control, expert intelligent control" and so on (as for the advantages of these control methods, alas, I only used PID, and I can't say anything else. If I go to copy books, it's not convincing, and the key is to be lazy to copy them. If the old brother wants to write a paper, he can give play