可编程逻辑控制器在血液透析机供水处理系统中的节水设计与应用.pdf

学术论著 中国医学装备2016年9月第13卷第9期 China Medical Equipment 2016 September Vol.13 No.9 可编程逻辑控制器 在血液透析机供水处理系统中的节水设计与应用 池妍妍① 刘 杨② 张永寿③* 刘海量④ 赵晓辰③ [文章编号] 1672-8270(2016)09-0022-03 [中图分类号] R197.324 [文献标识码] A [摘要] 目的： 设计将可编程逻辑控制器(PLC)用于血液透析用水处理系统，进行数字闭环流量实 时控制，实现血液透析用水处理系统节水节能。方法：通过数字电子流量传感器对产水、反水和 排水3个不同部分的水流速进行测量，将实时监测到的测量值反馈给PLC，后者根据系统负载的不 同用水量，通过调节电动流量调节阀控制废水的排放量。结果：PLC利用数字电子流量传感器实 时监测水系统不同部分水流速的测量值，可实现对系统废水排放量的自动化调节。结论：PLC技 术建立的数字闭环流量实时控制系统，能够保证最大的水利用率，同时可延缓反渗透膜的使用寿 命，实现系统产水、反水和排水3部分智能配比，达到了血液透析用水处理系统节水和节能目的。 [关键词] 水处理系统；可编程逻辑控制器；数字闭环流量实时控制系统；血液透析 DOI: 10.3969/J.ISSN.1672-8270.2016.09.007 Design and application of programmable logic controller in water saving of water processing 作者简介 system of hemodialysis machine/CHI Yan-yan, LIU Yang, ZHANG Yong-shou, et al// China Medical Equipment,2016,13(9):22-24. 池妍妍,女,(1992- ), [Abstract] Objective: To explore the water saving application of programmable logic controller 硕士研究生。山东中医 (PLC) in the water treatment system for hemodialysis, to achieve the purpose of saving water. 药大学理工学院，研究 Methods: The flow velocity of water production, water returning and drainage was measured by 方向：医疗设备工程。 the digital electronic flow sensor and the real-time monitoring value was give feedback to the PLC system. According to different water emission, the wastewater emission was controlled through adjusting electric flow control valve. Results: PLC system monitored the water flow velocity value of different parts using digital electronic flow sensor in real-time and realized the automation system for wastewater discharge regulation. Conclusion: The real-time control system of digital closed-loop flow depending on PLC technology can ensure the highest utilization efficiency of water, delay the service li