摘要
根据控制目标、对象和要求，应用可编程控制(PLC)技术，采用顺序控制结构，建立控制模型，试制出一种适用于PSA系列医用制氧设备的控制系统。根据GJB 2799-96《医用分子筛制氧机通用规范》要求，进行了基本参数测试、性能及功能试验和48h连续运行试验，结果表明：本控制系统实现了制氧设备运行过程自动化、故障自诊断与自校正，提高了设备可靠性，同时实现了流程的在线优化。流程优化实验表明：四塔结构制氧设备氧收率可达50%。
The control system fit for PSA series of medical oxygen generator introduced in this paper is trial－produced with the controlled goal， object and requirement as warrants， application of the programmable control technology， adoption of the sequential control structure and establishment of the control model． According to the GJB 2799－96 “General criterion of the medical molecular－sieve oxygen generator”， tests for basic parameter ， performance， function and continuous operation for 48 hours have been carried out． The results show that the control system realizes the following: automatization during the operation of the oxygen generator， self diagnosis and correction of failures， high reliability of devices and on－line optimization of flows． It is indicated that the extraction ratio of the oxygen for the oxygen generator with a 4－towers structure can reach 50 percent by experiments of flow optimization．
出处
《医疗卫生装备》
CAS
2001年第4期20-22,共3页
Chinese Medical Equipment Journal
关键词
医用制氧设备
控制系统
设计
可编程控制
medical oxygen generator； control system； design； PLC technology
