外文翻译-Z3050摇臂钻床电气控制系统的PLC改造设计.doc

本科毕业设计(论文) 外文翻译（附外文原文） 学 院： 机械与控制工程学院 课题名称： Z3050摇臂钻床电气控制 系统的PLC改造设计 专业(方向)： 机械设计制造及其自动化 （机械装备） 班 级： 机械11-2 学 生： 杨洪源 指导教师： 邹自明 日 期： 2015年3月12日 The design of water supply automatic control system of ship based on PLC Wang Rui Zheng Weigang School of energy and power engineering School of energy and power engineering Wuhan University of Technology Wuhan University of Technology Wuhan China Wuhan China e-mail:163.com e-mail: zfeidiao@163.com Abstract—the design of vessel centralized water supply system which can use diesel exhaust heat and solar energy hybrid, the system is better than the traditional water supply system and it can make full use of waste heat and solar energy,so the design will save the energy and protect environment .PLC centralized control system can realize the purpose of energy saving and intelligent control. Keywords: vessel centralized water supply system; solar energy; the exhaust heat; environmental protection; PLC centralized control system I. INTRODUCTION According to statistics, the energy consumption of Shipping industry accounts for 1/10 of the total energy consumption. The operation cost of 40%~60% is fuel consumption. [1] the reduction of ship fuel consumption is the key to protect environment and improve ship earnings. Most ship`s heat of water is provided by the auxiliary boiler. A large part of the ship energy consumption is in the auxiliary boiler . Reduction of the fuel consumption in auxiliary boiler and the recovery of the exhaust heat is an effective way to save energy .[2]To save energy, in addition to improve equipment utilization, reducing the energy loss in the process need to take appropriate technical measures to reduce energy consumption[3] Accord