小型变压吸附制氧与压氧一体机研究

发布时间：2018-05-16 01:25

本文选题：变压吸附 + 制氧机　；参考：《天津理工大学》2012年硕士论文

【摘要】：氧气是维持人类生命活动不可缺少的条件，然而在某些特殊情况下人们不得不面对缺少氧气的环境，或者需要高浓度氧气的情况，这时就需要考虑通过一定的工艺方法来制备和储存氧气。现有的制氧设备往往和压氧设备分体设计，便携性和可操作性较小。本文的主要目的就是要设计一种既可以以日常生活中的空气为原料制备高浓度氧气，又可以将高浓度氧气加压并灌装入氧气储存装置的小型智能一体设备。氧气的制备可以通过多种方法来实现，本文在介绍和比较了多种氧气制备方法的基础上对变压吸附制氧工艺进行了深入的探讨，详述了变压吸附原理，常用吸附剂的性能比较，吸附过程的数学模型等，并以此工艺为基础进行了小型变压吸附制氧系统和压氧系统的设计。主要工作包括气源系统的设计、空气压缩系统的设计、吸附分离系统的设计。此后对压缩机的设计选型进行了介绍，参考多种国家标准对本课题所用压缩机进行了选型。由于本课题设计过程中对体积和重量有较高要求，在完成整机零部件的设计选型后，对整机进行了结构设计和优化，在实际操作过程中进行了多套方案的比较分析，，并最终采用了本文所述的结构方案。在一体机结构设计之后本文对一体机的控制系统进行了研究设计。本文以C8051f单片机为核心进行了控制系统相关电路的软硬件设计，包括电源电路、信号采集电路、接口输出电路、人机交互电路等。并对相关软件系统，进行程序编写。最后，对样机进行了性能和可靠性测试，测试结果表明本课题研制的样机各项性能指标均达到了设计要求，且通过了机器可靠性测试。
[Abstract]:Oxygen is an indispensable condition for the maintenance of human life. However, in some special cases, people have to face the condition of lack of oxygen or the need for high concentration of oxygen. At this time, it is necessary to consider the preparation and storage of oxygen through a certain process. The existing oxygen making equipment is often designed in a separate body with the oxygen pressure equipment. The main purpose of this article is to design a small and intelligent equipment which can make high concentration of oxygen from the air in daily life, and can also pressurize the high concentration oxygen and fill in the oxygen storage device.
The preparation of oxygen can be achieved by a variety of methods. In this paper, based on the introduction and comparison of various oxygen preparation methods, the PSA process is deeply discussed. The principle of pressure swing adsorption, the performance comparison of the adsorbents and the mathematical model of the adsorption process are described in detail, and a small pressure variable pressure is carried out on the basis of this process. The design of the adsorption oxygen making system and the oxygen pressure system. The main work includes the design of the gas source system, the design of the air compression system and the design of the adsorption separation system. After that, the design and selection of the compressor are introduced, and the compressor is selected with reference to a variety of national standards. The weight has a high requirement. After completing the design and selection of the whole machine parts, the structural design and optimization of the whole machine are carried out. The comparison and analysis of multiple sets of schemes are carried out in the actual operation process, and the structural scheme described in this paper is finally adopted.
After the design of one machine structure, this paper studies and designs the control system of the integrated machine. In this paper, the hardware and software design of the related circuit of the control system is carried out with C8051f single chip computer as the core, including the power circuit, the signal acquisition circuit, the interface output circuit, the human-computer interaction circuit and so on. And the program is written for the related software system.
Finally, the performance and reliability of the prototype are tested. The test results show that all the performance indexes of the prototype have reached the design requirements, and the reliability test of the machine has been passed.

【学位授予单位】：天津理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH122

【参考文献】