Dry Ice Ice Machine Hydraulic Control System Design And Research

Dry ice machine is a kind of device which makes the CO₂ form chemical plant to block or grain. In this paper a dry ice machine fluid driver and control system is designed to work automatically and steadily.After analyzing of the working technique procedure of dry ice machine, a fluid drive system is designed based on relay, and the servo system used in the domain of aviation and space is used. After analyzing and improvement of hydraulic pressure system a servo and control dry ice machine system is gained based on servo and control system; On the request of control of hydraulic system, the right PLC controller is used as well as the soft and hard ware are designed, and a integrated scheme to make the dry ice machine perform well: firstly an advanced software named Automation Studio is used to design the primary system, and it turn out to be have large inertia and wallop which has a bad effect on the dry ice machine; To improve the performance of hydraulic pressure system, the software Matlab is used into it to analyze the static and dynamic capacity, it finds out to be that the system is stable and has large overshooting number. To make the system stable and have no overshooting number, a proper PID controller is designed; Finally the hardware and software of the control system is finished using PLC of Simens.In this thesis, by using the technique of machine, electron and hydraulic control, a high-powered hydraulic dry ice machine is finished. The method will be have large directive meaning, on the side, the method of design will have large reference to other compress machine.