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The Design and Implementation of the New Type CO2 Elimination Device Control System

Author: LuoSha
Tutor: CheMing；NieYaJie
School: Tianjin University
Course: Computer technology
Keywords: CO2 removal Process Control HMI PLC
CLC: TP273
Type: Master's thesis
Year: 2008
Downloads: 58
Quote: 1
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Abstract


CO 2 removal technology is widely used in agriculture air-conditioned library, controlling carbon dioxide concentration, preservation of fruits and vegetables to improve the quality, extend the preservation storage time. Fruits and vegetables can significantly improve the economic value added, with a wide range of social and economic benefits. With CO 2 removal technology in-depth study, combined application feedback, the use of solid amine polymer resin absorbent material, new CO 2 removal machine design and development . New carbon dioxide removal machine has a simple process, environmental pollution control and low concentration. In this thesis, a full analysis of new CO 2 removal machine working principle and process, based on the proposed control simple, reliable operation, the concentration of adjustable control requirements. The author adopts advanced PLC HMI control system for a complete computer control system design, implementation process of automatic control and personnel to operate the intervention function. Hardware configuration type using the Siemens S7-300 PLC and MP370 touch screen, the use of powerful software development platform for Siemens Step7 software design package and touch screen configuration software Protool, development and monitoring of the PLC control program interface. Through the new CO 2 removal machine applications actually showed that: device is stable, reliable, and simple manipulation. Improved control strategies, control logic is correct. Process control using a structured design approach has better scalability and maintainability. Device can be achieved manually run single tower manually cycle operation, automatically adjust the concentration of carbon dioxide and other work to run in three modes bumpless switching between meet commissioning, operation and maintenance of a variety of application requirements. Touch screen for on-site operation provides a convenient interactive interface, can carry out the necessary human intervention. Monitoring program constituted by a plurality of configuration interface, you can display status information for all processes and parameters, to facilitate a comprehensive understanding of the operator device running. Both run data archiving, historical data query functions to meet management needs. Atmosphere different case, since the storage capacity and the different types of fruit, the control requirements of different concentrations of carbon dioxide. New carbon dioxide removal machine via the touch screen real-time adjustments CO 2 concentration and the control of the respective control parameters, the device has a good environmental adaptability and versatility to meet different market needs.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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