摘要
本文针对医用富氧空气供应问题,阐述了三种常见的富氧空气供应源:医用液氧贮罐、医用分子筛制氧机以及医用富氧空气钢瓶汇流排,并重点分析了医用分子筛制氧机的工作原理、设计流程及其主要设备组件。分子筛制氧机基于变压吸附原理,利用沸石分子筛作为吸附剂,通过加压吸附降压解吸过程从空气中分离富氧空气。设计过程中,首先根据医疗机构床位数计算富氧空气需求量,然后配置相应产气量的制氧机,最后完成设计方案并考虑机房面积等因素。在设备介绍部分,详细描述了空气压缩机、冷冻式干燥机、各级过滤器、分子筛吸附塔(主机)、富氧空气罐、富氧空气增压机、富氧空气纯度监测仪、富氧空气流量计、智能化控制系统以及备用氧源等组成部分的作用和工作要求。特别强调了空气压缩机应选用低压、全无油涡旋压缩机保障空气洁净度,以及智能化控制系统对设备运行监控的重要性。此外,文中还给出了具体的设计流程示例,按照相关国家规范对医用分子筛制氧站的站房布局和安全防护提出了明确要求,包括耐火等级、门窗材质、防火墙设置以及备用电源配备等。总的来说,医用分子筛制氧机因其便捷的就地制氧能力和适应偏远地区的特点,在解决医疗机构富氧空气供应问题上发挥了重要作用,尤其对于远离大型富氧空气生产单位的医疗机构而言,是一种理想的富氧空气供应解决方案。
Aiming at the problem of medical oxygen-enriched air supply,this paper describes three common oxygen-enriched air supply sources:medical liquid oxygen storage tanks,medical molecular sieve oxygen generators,and medical oxygen-enriched air cylinder busbars,and emphatically analyzes the working principle,design process,and main equipment components of medical molecular sieve oxygen generators.Based on the principle of pressure swing adsorption,zeolite molecular sieves are used as adsorbents to separate oxygen-enriched air from air through the processes of pressurized adsorption and depressurized desorption.In the design process,the oxygen-enriched air demand is first calculated according to the number of beds in medical institutions.Then,the corresponding oxygen generator is configured.Finally,the design scheme is completed and factors such as machine room area are considered.The paper provides detailed descriptions of the functions and working requirements of key apparatuses including air compressors,refrigerated dryers,multi-stage filters,molecular sieve adsorption tower(main unit),oxygen-enriched air tanks,oxygen-enriched air boosters,oxygen-enriched air purity monitors,oxygen-enriched air flowmeters,intelligent control systems,and backup oxygen sources.It is especially emphasized that low-pressure and fully oil-free scroll compressors should be selected to ensure air cleanliness,and the importance of intelligent control systems to monitor equipment operation.Moreover,the paper presents a specific design flow example.In compliance with relevant national standards,the paper outlines clear requirements for the layout and safety protection of a medical molecular sieve oxygen generation station,including fire resistance ratings,door and window materials,firewall settings,and backup power supplies.In summary,medical molecular sieve oxygen generator plays an important role in solving the problem of oxygen-enriched air supply in medical institutions due to its convenient on-site oxygen production capabilities and suitability for remote areas.It is an ideal oxygen-enriched air supply solution,especially for medical institutions far away from large oxygen-enriched air production units.
作者
周琴
ZHOU Qin(Sichuan Air Separation Medical Equipment Engineering Co.,Ltd.,Jianyang 641400,China)
出处
《医用气体工程》
2024年第2期43-46,共4页
Medical Gases Engineering
关键词
医用制氧机
变压吸附
设计
分析
medical oxygen generator
pressure swing adsorption
design
analysis
