高壓靜電除塵控制系統(tǒng)的研究
發(fā)布時(shí)間:2018-05-22 15:39
本文選題:高壓靜電除塵器 + 除塵效率; 參考:《西安工業(yè)大學(xué)》2015年碩士論文
【摘要】:在如今的社會中,由于生產(chǎn)規(guī)模的不斷擴(kuò)大化,致使環(huán)境污染越來越嚴(yán)重,這里面工業(yè)粉塵的排放量是對環(huán)境造成污染的主要因素之一,所以如何從這方面出發(fā)來進(jìn)行環(huán)保是個(gè)很重要的話題。除塵器作為治理粉塵污染的主要環(huán)保器械因此而不斷被研發(fā)出與進(jìn)化,本論文就是針對高壓靜電除塵器進(jìn)行的研究與設(shè)計(jì),以課題背景、電除塵控制技術(shù)以及國內(nèi)外的發(fā)展?fàn)顩r為依據(jù),將提高除塵效率視為主要目的,設(shè)計(jì)出高壓靜電除塵器的電氣控制系統(tǒng)。首先本文從理論上分析高壓靜電除塵器的基本工作原理和工作流程,總結(jié)高壓靜電除塵器的主要性能參數(shù),設(shè)計(jì)高壓靜電除塵器的主要構(gòu)件與裝置,并從提高除塵效率角度出發(fā)分析并總結(jié)對高壓靜電除塵器產(chǎn)生影響的因素并找到解決此類問題、提高除塵效率的措施。其次本系統(tǒng)整體采用高、低壓兩部分分別進(jìn)行控制,也就是將高壓靜電除塵器的電氣控制系統(tǒng)分為高壓供電控制系統(tǒng)和低壓控制系統(tǒng)兩部分。利用高壓供電設(shè)備對除塵器供給高電壓,高電壓就會形成高強(qiáng)度的電場,一般高壓靜電除塵器都會設(shè)有不同級別的電場,在相同電場中的高電壓保持一致;對低壓控制系統(tǒng)從三部分進(jìn)行設(shè)計(jì),分別是:振打控制系統(tǒng)、溫度控制系統(tǒng)和卸輸灰控制系統(tǒng)。兩個(gè)控制系統(tǒng)基本上獨(dú)自工作,不互相影響。本系統(tǒng)以西門子S7-300 PLC作為核心控制器,通過對模塊、接線端子和外接設(shè)備的選用,主要設(shè)計(jì)了包括高壓電源開關(guān)、振打系統(tǒng)、溫度檢測與加熱系統(tǒng)和卸輸灰系統(tǒng)在內(nèi)的工藝流程,并利用AutoCAD畫出了PLC控制框圖,完成了對控制系統(tǒng)的硬件設(shè)計(jì)。最后對系統(tǒng)整體軟件部分進(jìn)行了設(shè)計(jì),包括振打系統(tǒng)的時(shí)序控制、卸輸灰系統(tǒng)的控制流程以及對溫度進(jìn)行變速積分PID控制的控制流程,并通過軟件實(shí)現(xiàn)與系統(tǒng)調(diào)試,使各系統(tǒng)更加合理有效地工作,使除塵效率達(dá)到設(shè)計(jì)要求。
[Abstract]:In today's society, due to the continuous expansion of the scale of production, environmental pollution is becoming more and more serious. The discharge of industrial dust is one of the main factors that cause pollution to the environment. So how to proceed from this aspect to carry on the environmental protection is a very important topic. As the main environmental protection device for dust pollution control, the dust collector has been continuously developed and evolved. This paper is aimed at the research and design of high voltage electrostatic precipitator, with the background of the subject. Based on the control technology of electrostatic precipitator and the development situation at home and abroad, the electric control system of high voltage electrostatic precipitator is designed by considering the improvement of dust removal efficiency as the main purpose. First of all, this paper theoretically analyzes the basic working principle and working flow of HESP, summarizes the main performance parameters of HESP, and designs the main components and devices of HESP. From the point of view of improving the dust removal efficiency, the paper analyzes and summarizes the factors that affect the high voltage electrostatic precipitator, and finds out the measures to solve this kind of problems and to improve the dust removal efficiency. Secondly, the whole system is controlled by high and low voltage, that is, the electrical control system of high voltage electrostatic precipitator is divided into two parts: high voltage power supply control system and low voltage control system. Using high voltage power supply equipment to supply high voltage, high voltage will form a high strength electric field, generally high voltage electrostatic precipitator will have different levels of electric field, the high voltage in the same electric field remains the same; The low voltage control system is designed from three parts: vibration control system, temperature control system and ash unloading control system. The two control systems basically work alone and do not affect each other. In this system, Siemens S7-300 PLC is used as the core controller. Through the selection of modules, wiring terminals and external equipment, the system is mainly designed to include a high-voltage power switch and a vibrating system. The process flow of temperature detection and heating system and ash unloading system is introduced, and the PLC control block diagram is drawn by using AutoCAD, and the hardware design of the control system is completed. Finally, the whole software part of the system is designed, including the timing control of the vibrating system, the control flow of the ash unloading system and the control flow of the temperature variable speed integral PID control, and the debugging of the system through the software. The system can work more reasonably and effectively, and the dust removal efficiency can meet the design requirements.
【學(xué)位授予單位】:西安工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:X701.2;TP273
【引證文獻(xiàn)】
相關(guān)會議論文 前3條
1 陳鵬;胡紹偉;王永;徐偉;;淺談靜電除塵技術(shù)的發(fā)展現(xiàn)狀及前景[A];2010年全國能源環(huán)保生產(chǎn)技術(shù)會議文集[C];2010年
2 陳麗艷;謝小杰;廖增安;鐘志良;鄭國強(qiáng);郭俊;;電除塵器如何滿足低排放研究報(bào)告[A];第十四屆中國電除塵學(xué)術(shù)會議論文集[C];2011年
3 吳葆京;;高壓硅整流設(shè)備若干電氣問題探討[A];第十一屆全國電除塵學(xué)術(shù)會議論文集[C];2005年
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