本文關(guān)鍵詞： 高頻除塵器 閃絡(luò)捕捉 梯度調(diào)壓 高頻變壓器　出處：《杭州電子科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：工業(yè)文明和城市高度發(fā)展的今天,空氣污染已然成為了一個(gè)無法逃避的現(xiàn)實(shí)。電除塵器因其凈化效率高、煙氣處理量大、維護(hù)方便等優(yōu)勢,在空氣治理領(lǐng)域發(fā)揮了巨大的作用。隨著我國排放標(biāo)準(zhǔn)的提升,對電除塵器的除塵效率和節(jié)能方面提出了更高的要求,致使其核心組件電源部分的設(shè)計(jì)得到了廣泛的關(guān)注。在這種背景下,本文對電除塵器電源的硬件設(shè)計(jì)及控制系統(tǒng)的實(shí)現(xiàn)進(jìn)行了深入研究,優(yōu)化了電除塵器工況的監(jiān)控與控制方式,研制了一種適用于小型工廠尾氣處理、餐飲業(yè)油煙凈化的高壓電除塵電源。本文設(shè)計(jì)的電除塵電源以STC單片機(jī)為控制核心,通過捕捉火花閃絡(luò)信號,實(shí)時(shí)分析電除塵器運(yùn)行工況,自適應(yīng)調(diào)節(jié)電源輸出,使電除塵器運(yùn)行于最佳工作電壓下,始終保持高效的除塵效率。文中詳細(xì)介紹了交流輸入回路、輔助電源電路、功率轉(zhuǎn)換電路、火花閃絡(luò)檢測電路、脈寬調(diào)制電路以及電壓采樣反饋回路。通過對各部分電路的分析,計(jì)算了關(guān)鍵器件的詳細(xì)參數(shù)并確定了器件的選型。輔助電源采用反激式拓?fù)浣Y(jié)構(gòu),為系統(tǒng)內(nèi)部控制芯片提供穩(wěn)定的工作電壓,相比直接采用工頻變壓器降壓,能耗較低。根據(jù)電源設(shè)計(jì)指標(biāo),功率轉(zhuǎn)換電路最終采用半橋拓?fù)浣Y(jié)構(gòu)作為主電路,結(jié)合火花閃絡(luò)檢測電路和電壓采樣反饋回路信號,通過脈寬調(diào)制電路調(diào)節(jié)電源輸出,為電除塵器提供穩(wěn)定的合適的工作電壓。本設(shè)計(jì)創(chuàng)新點(diǎn)有兩個(gè):一、根據(jù)閃絡(luò)發(fā)生的機(jī)理,設(shè)計(jì)了火花閃絡(luò)檢測電路,降低了火花閃絡(luò)的漏檢率和誤檢率,為調(diào)整電源輸出提供有力依據(jù)。同時(shí)針對不同強(qiáng)度的閃絡(luò),系統(tǒng)采取了不同的處理措施,確保了電除塵高效的除塵效率。二、針對重火花放電現(xiàn)象,電源采用梯度調(diào)壓機(jī)制,不僅有效保護(hù)電除塵器機(jī)體本身,還解決了因電除塵器工作電壓驟然下降而導(dǎo)致二次揚(yáng)塵問題。本文第六章對電源系統(tǒng)進(jìn)行了相關(guān)測試。實(shí)驗(yàn)結(jié)果表明,各電路能夠正常工作。針對電除塵器不同工況,電源系統(tǒng)能夠自適應(yīng)調(diào)節(jié)輸出電壓。電除塵器的除塵效率得到了進(jìn)一步提升,全面提高了電除塵電源的運(yùn)行維護(hù)和管理水平,達(dá)到了預(yù)期的效果。
[Abstract]:The height of the development of industrial civilization and the city today, air pollution has become an inescapable reality. Esp because of its high purification efficiency, flue gas treatment capacity, convenient maintenance and other advantages, has played a huge role in the field of air control. Along with our country to enhance the emission standards, put forward higher requirements energy saving and dust removal efficiency of electrostatic precipitator, resulting in the design of the core components of the power supply has been widely concerned. In this context, the implementation of electric precipitator power supply hardware design and control system to conduct in-depth research, to optimize the monitoring and control mode condition of electric dust collector was developed. Suitable for small plant tail gas treatment, high voltage electrostatic precipitator power supply cooking oil fume purification. The design of the ESP power supply to STC microcontroller as control core, by capturing the flash signal, real-time analysis Operation of electrostatic precipitator, adaptive power output, so that the operation of the electrostatic precipitator in the best working voltage, always maintain high efficiency. The dust removal efficiency is introduced in detail in the paper the AC input circuit, auxiliary power supply circuit, power conversion circuit, flash detection circuit, pulse width modulation circuit and a voltage feedback loop. Based on the analysis of sampling each part of the circuit, calculate the detailed parameters of key components and determine the selection of the devices. The auxiliary power supply with flyback topology, provide stable operating voltage for the system of internal control chip, compared directly with a frequency transformer step-down, low energy consumption. According to the design of the power supply indicator, power conversion circuit with half bridge topology as the main circuit, detection circuit and the combination of spark flashover voltage sampling feedback loop signal, adjust the power output by a pulse width modulation circuit for electrostatic precipitator The stability of appropriate working voltage. The design has two innovations: first, according to the mechanism of flashover, flashover spark detection circuit design, reduces the spark flashover detection rate and false detection rate, and provide a strong basis for the adjustment of the power output. At the same time for different flashover strength. The system adopts different treatment measures and to ensure the dust removing efficiency of the electric dust removal efficiency. Two, according to the weight of the spark discharge, the power supply voltage gradient mechanism, can effectively protect the ESP body itself, but also solves the working voltage of electric precipitator for sudden drop caused by two times the dust problem. In the sixth chapter, the related test on the power system. The experimental results show that the circuit can work properly. The electric precipitator under different working conditions, the power system can adaptively adjust the output voltage. The electric dust efficiency has been further improved, and comprehensively improve The operation and maintenance and management level of the electric dust removal power supply have reached the expected effect.

【學(xué)位授予單位】：杭州電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN86

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 劉禹佳;;大數(shù)據(jù)驅(qū)動的全球環(huán)境治理路徑創(chuàng)新研究[J];河南工業(yè)大學(xué)學(xué)報(bào)(社會科學(xué)版);2017年01期

2 祁建民;楊志超;陳強(qiáng);;靜電除塵和電袋除塵技術(shù)研究對比分析[J];環(huán)境研究與監(jiān)測;2015年01期

3 胡小吐;;氨法煙氣脫硫濕式電除塵技術(shù)的工業(yè)應(yīng)用[J];環(huán)境工程;2015年02期

4 趙晨龍;周志成;高嵩;朱明曦;王黎明;;基于閃絡(luò)電壓預(yù)測的污閃預(yù)警系統(tǒng)[J];高電壓技術(shù);2014年11期

5 張瑩;邵毅;王式功;尚可政;王金艷;李旭;康延臻;;北京市空氣污染物對呼吸系統(tǒng)疾病門診人數(shù)的影響[J];中國環(huán)境科學(xué);2014年09期

6 夏進(jìn)文;;電除塵技術(shù)的發(fā)展與研究現(xiàn)狀[J];科技創(chuàng)新與應(yīng)用;2014年25期

7 阮羚;謝齊家;高勝友;聶德鑫;盧文華;張海龍;;人工神經(jīng)網(wǎng)絡(luò)和信息融合技術(shù)在變壓器狀態(tài)評估中的應(yīng)用[J];高電壓技術(shù);2014年03期

8 酈建國;酈祝海;何毓忠;趙海寶;余順利;;低低溫電除塵技術(shù)的研究及應(yīng)用[J];中國環(huán)保產(chǎn)業(yè);2014年03期

9 舒英鋼;;燃煤電廠電除塵技術(shù)綜述[J];中國環(huán)保產(chǎn)業(yè);2013年12期

10 李亞維;丁明軍;馬成剛;劉云濤;謝敏;;80kV可調(diào)節(jié)高壓脈沖方波脈沖電源的研制[J];強(qiáng)激光與粒子束;2013年10期

相關(guān)碩士學(xué)位論文 前1條

1 張玉林;電除塵性能優(yōu)化和節(jié)能改造[D];華南理工大學(xué);2014年

，

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