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毕 业 设 计
锅炉出水温度控制系统的研究与设计
总计 毕业设计(论文) 页 表格 表 插图 幅 摘 要PLC的锅炉温度控制系统,该系统包括下位机控制和上位机控制两部分。文中给出了通过时间和室外温度相结合的控制策略对系统温度进行调节控制。
关键字:锅炉;计算机控制; PLC
Abstract
With China’s economic development,resources and the environment has become increasingly acute contradictions,so that the modernization of our country is facing a formidable challenge.As an important energy source conversion equipment,heating system of the industrial boiler consumes about one-third of China’s coal.However,the majority of China’s current operating boiler system’s security and efficiency is generally lower than the national standard.So it's great significance to achieve automatic control for boiler with computer.
Along with science technical develop continuously people start making use of every kind of advanced instrument constituting the calculator control system with the technique to the control operation that replace the artificial complicacy, direct arithmetic figure control DDC system( Direct Control), just one of them Direct arithmetic figure control DDC system, it is an industry to produce convenient and the most extensive a kind of system in system of control of calculator application form, in addition to through importation passage to several industries process parameter proceeding cruising to return to examination to collect, it returned to replace the emulation regulates the emulation in the system regulates the spirit, at the set regulate rule proceed the intermediation carries to calculate, then will carry to calculate result pass process output passage output combine function in carry out the organization, to realize many the purpose that back track regulate.
the paper presents a overall control thinking,the system designed to heating in winter includes superordinate computer control system and the subordinate system.To meet all the campus’s winter heating,it gives a complete control strategy which combined with t
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