霍尼韦尔 51304362250 串行设备接口处理机 MC-PSDX02

霍尼韦尔 51304362250 串行设备接口处理机 MC-PSDX02

霍尼韦尔 51304362250 串行设备接口处理机 MC-PSDX02

自动控制系统

化工生产过程是连续的生产过程，各种过程变量都是连续变化的模拟量。在化工生产中，常常要求通过操作使得某些表征化工生产过程状况的、重要的过程变量，相对地稳定在生产工艺要求的数值上。

例如:在精馏塔的操作中，提馏段的温度是否稳定在某个量值上，将直接影响到精馏塔工作状况的好坏和产品质量的优劣，通常设置一个自动控制系统对提馏段温度进行自动操作。

这种操纵某种物料量或能量的大小，使得某个过程变量保持在生产工艺要求的给定值上的自动化系统，叫自动控制系统。

霍尼韦尔 51304362250 串行设备接口处理机 MC-PSDX02

Automatic control system

Chemical production process is a continuous production process, and various process variables are continuously changing analog quantities. In chemical production, it is often required to make some important process variables that characterize the state of the chemical production process relatively stable at the value required by the production process through operation.

For example, in the operation of the distillation column, whether the temperature of the distillation section is stable at a certain value will directly affect the working condition of the distillation column and the quality of the product. Usually, an automatic control system is set up to automatically operate the temperature of the distillation section.

This kind of automatic system that manipulates the amount of a certain material or the size of energy to keep a certain process variable at a given value required by the production process is called an automatic control system.