制氧机PLC控制系统的设计和组态仿真  

The Design and Configuration Simulation of the PLC Control System of the Oxygen Generator

作　　者：胡峻硕 董海兵 曾德宝 王秋燕 HU Junshuo;DONG Haibing;ZENG Debao;WANG Qiuyan(School of Electrical and Information Engineering,Hunan Institute of Technology,Hengyang Hunan 421002)

机构地区：[1]湖南工学院电气与信息工程学院,湖南衡阳421002

出　　处：《河南科技》2021年第9期18-20,共3页Henan Science and Technology

基　　金：2020年国家级大学生创新创业训练计划项目(教高司函〔2020〕13号,S202011528003);2018年国家级大学生创新创业训练计划项目(教高司函〔2018〕14号,201811528081);2018年度湖南省教育厅科学研究项目(湘教通〔2018〕519号,18C0898)。

摘　　要：变压吸附制氧是指采用沸石分子作为吸附剂,利用加压吸附、降压解吸的原理来获取氧气。在一定压力下,空气的氧、氮在分子筛空隙中具有不同的扩散速率,人们可以利用这一现象达到分离空气的目的。本文研究了采用变压吸附方法制备高纯氧的制氧机工艺,并对其自动控制系统进行设计。通过分析自动控制系统的控制逻辑可知,制氧机可以通过西门子公司的可编程逻辑控制器S7300来控制多个阀门,以实现循环制氧。本文对控制系统进行硬件和软件设计,并通过编程软件STEP7的PLCSIM仿真模块与组态软件WINCC6.0进行离线模拟仿真和组态监控。实践证明,该控制方案良好,能达到实际要求。Pressure swing adsorption oxygen production refers to the use of zeolite molecules as adsorbents,using the principle of pressure adsorption and decompression desorption to obtain oxygen.Under a certain pressure,the oxygen and nitrogen of the air have different diffusion rates in the molecular sieve voids,people can use this phenomenon to achieve the purpose of separating air.In this paper,the technology of oxygen generator for preparing high-purity oxy⁃gen by pressure swing adsorption method was studied,and its automatic control system was designed.By analyzing the control logic of the automatic control system,it can be known that the oxygen generator can control multiple valves through the programmable logic controller S7300 of SIEMENS to realize circulating oxygen.This paper carried on the hardware and software design to the control system,and carried on off-line simulation simulation and configu⁃ration monitoring through the PLCSIM simulation module of the programming software STEP7 and the configuration software WINCC6.0.Practice has proved that the control scheme is good and can meet actual requirements.

关 键 词：制氧机 可编程逻辑控制器 PLCSIM WINCC6.0 仿真 监控 

分 类 号：TF345.05[冶金工程—冶金机械及自动化]