摘 要
全氫罩式退火爐是冷軋帶鋼退火的一種主要設(shè)備,它對(duì)提高產(chǎn)品質(zhì)量起著十分重要的作用。目前該設(shè)備國(guó)內(nèi)依靠引進(jìn),特別是其控制系統(tǒng)完全由國(guó)外提供。本文對(duì)全氫罩式退火爐的退火工藝、設(shè)備組成、國(guó)內(nèi)外全氫罩式退火爐各種控制系統(tǒng)的特點(diǎn)進(jìn)行了深入的研究,針對(duì)全氫罩式退火爐的工藝流程,對(duì)基礎(chǔ)控制系統(tǒng)的控制范圍、硬件結(jié)構(gòu)、控制功能的軟件實(shí)現(xiàn)等進(jìn)行了詳細(xì)研究和設(shè)計(jì),開(kāi)發(fā)了一套全氫罩式退火爐的溫度控制系統(tǒng)。
全氫罩式退火爐控制系統(tǒng)分為流程控制和過(guò)程量監(jiān)測(cè)兩部分,由于其使用易爆的氫氣作為保護(hù)氣,因此對(duì)控制系統(tǒng)的要求是安全、可靠。本文在開(kāi)發(fā)該控制系統(tǒng)時(shí),硬件配置上充分考慮了系統(tǒng)的可靠性和經(jīng)濟(jì)性要求,軟件設(shè)計(jì)上采用模塊化設(shè)計(jì)思想,將程序按設(shè)備管理、過(guò)程管理和集中輸出分類(lèi),并在程序中設(shè)置了多重安全措施,保證了應(yīng)用程序的運(yùn)行安全和可靠性。
通過(guò)本研究,可以實(shí)現(xiàn)全氫罩式退火爐基礎(chǔ)控制統(tǒng)的國(guó)產(chǎn)化,這對(duì)于全氫罩式爐成套設(shè)備和技術(shù)的國(guó)產(chǎn)化具有重要的意義。
關(guān)鍵詞:全氫罩式退火爐 過(guò)程控制 溫度控制
ABSTRACT
Hydrogen annealing furnace is a type of equipment for cold rolling strip annealing,and this is very important for improving strip’s quality。In our country almost all of furnaces are imported at present,and its control system is offered wholly by foreigners。In this paper the technology and equipment of hydrogen annealing furnace as well as its control system in many domestic and foreign factories has been studied in deal。According to annealing furnace’s technological process,a base control system,including control content,hardware framework and control function software has been designed。
The hydrogen annealing furnace base control system consists of process control and process parameters monitoring。Because the furnace is full of explosive hydrogen,its control system should be very safe and reliable。During the study and developing of the control system,the whole system’s reliability and economy are considered fully on hardware disposition,and model block is used on software design。The client software consists of equipment management,process management and centralized output,and many kind of safety measure are set up in the software,which ensures the software running safely。
By means of this study,it is possible to develop hydrogen annealing furnace base control system by ourselves,which is very important for the equipment and technology of annealing furnace been made in china。
KEYWORDS:hydrogen annealing furnace,process control,temperature control