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Abstract

This paper mainly aims at the waste heat recovery of marine diesel engine cylinder liner water£¬designing a simulation device for a control system is designed.The emphasis of this paper is the design of PID control for the water temperature of the whole simulation device.In order to make the temperature control more accurate, this system uses the result feedback control idea.That is, the temperature of the target to give us feedback to the set temperature and Through the comparison of the two to control the ratio of controlled objects that the valve opening, the target temperature control.Firstly, the project background and research status of temperature control are reviewed, and the target parameters of system design are defined.And then according to the requirements of the control and parameters, the use of PLC programming for control and implementation, and to write the control part of the program.In addition, we also on the host computer design, build the physical platform and the key parameters of the acquisition and debugging to make an understanding and introduction.

Key words: waste heat recovery£»PID control£»temperature control£»PLC

programming

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