高压静电除尘控制系统的研究

发布时间：2018-05-22 15:39

本文选题：高压静电除尘器 + 除尘效率　；参考：《西安工业大学》2015年硕士论文

【摘要】：在如今的社会中,由于生产规模的不断扩大化,致使环境污染越来越严重,这里面工业粉尘的排放量是对环境造成污染的主要因素之一,所以如何从这方面出发来进行环保是个很重要的话题。除尘器作为治理粉尘污染的主要环保器械因此而不断被研发出与进化,本论文就是针对高压静电除尘器进行的研究与设计,以课题背景、电除尘控制技术以及国内外的发展状况为依据,将提高除尘效率视为主要目的,设计出高压静电除尘器的电气控制系统。首先本文从理论上分析高压静电除尘器的基本工作原理和工作流程,总结高压静电除尘器的主要性能参数,设计高压静电除尘器的主要构件与装置,并从提高除尘效率角度出发分析并总结对高压静电除尘器产生影响的因素并找到解决此类问题、提高除尘效率的措施。其次本系统整体采用高、低压两部分分别进行控制,也就是将高压静电除尘器的电气控制系统分为高压供电控制系统和低压控制系统两部分。利用高压供电设备对除尘器供给高电压,高电压就会形成高强度的电场,一般高压静电除尘器都会设有不同级别的电场,在相同电场中的高电压保持一致；对低压控制系统从三部分进行设计,分别是：振打控制系统、温度控制系统和卸输灰控制系统。两个控制系统基本上独自工作,不互相影响。本系统以西门子S7-300 PLC作为核心控制器,通过对模块、接线端子和外接设备的选用,主要设计了包括高压电源开关、振打系统、温度检测与加热系统和卸输灰系统在内的工艺流程,并利用AutoCAD画出了PLC控制框图,完成了对控制系统的硬件设计。最后对系统整体软件部分进行了设计,包括振打系统的时序控制、卸输灰系统的控制流程以及对温度进行变速积分PID控制的控制流程,并通过软件实现与系统调试,使各系统更加合理有效地工作,使除尘效率达到设计要求。
[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.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X701.2;TP273

【引证文献】