----中達電通股份有限公司 劉元剛
摘要: 臭(chou)氧(yang)是(shi)最(zui)佳(jia)的(de)消(xiao)毒(du)劑(ji)之(zhi)一(yi),臭(chou)氧(yang)發(fa)生(sheng)器(qi)在(zai)環(huan)境(jing)保(bao)護(hu)中(zhong)有(you)重(zhong)要(yao)的(de)應(ying)用(yong)。本(ben)文(wen)簡(jian)要(yao)討(tao)論(lun)了(le)產(chan)生(sheng)臭(chou)氧(yang)的(de)原(yuan)理(li)和(he)基(ji)於(yu)台(tai)達(da)變(bian)頻(pin)器(qi)構(gou)成(cheng)中(zhong)頻(pin)電(dian)源(yuan)的(de)臭(chou)氧(yang)發(fa)生(sheng)器(qi)的(de)係(xi)統(tong)結(jie)構(gou)等(deng)相(xiang)關(guan)技(ji)術(shu)問(wen)題(ti)。應(ying)用(yong)效(xiao)果(guo)表(biao)明(ming),利(li)用(yong)台(tai)達(da)變(bian)頻(pin)器(qi)實(shi)現(xian)的(de)中(zhong)頻(pin)電(dian)源(yuan)係(xi)統(tong),可(ke)以(yi)保(bao)證(zheng)臭(chou)氧(yang)發(fa)生(sheng)器(qi)係(xi)統(tong)的(de)可(ke)靠(kao)性(xing)和(he)穩(wen)定(ding)性(xing)。
關鍵詞: 變頻器 臭氧發生器 中頻電源 Abstract: The ozone is one of the best disinfector, the ozonizer has very important application in environment protection. This paper briefly discussed the related technique problems such as principle of producing ozone, syste structure of ozonizer constutited by mid-frequency power supply based on Delta inverter and so on. The application effect shows that it could be ensured to the reliability and stability of ozonizer constutited by dint of Delta inverter actualizing mid-frequency power supply. Key words: Inverter Ozonizer Mid-frequency power supply [中圖分類號] TP273 [文獻標識碼] B 文章編號
1 引 言 臭氧是一種強氧化劑,在給水工程中可用於消毒、除臭味、除色、除膠體;在工業廢水處理工程中可用於除酚、除表麵活性劑,此外還用於紙漿漂白等。如臭氧在飲用水、礦泉水、純水、遊泳池循環水及養殖水處理和工業、醫(yi)院(yuan)汙(wu)水(shui)處(chu)理(li)等(deng)方(fang)麵(mian)已(yi)有(you)廣(guang)泛(fan)的(de)應(ying)用(yong)。由(you)於(yu)臭(chou)氧(yang)在(zai)對(dui)微(wei)生(sheng)物(wu)起(qi)作(zuo)用(yong)之(zhi)後(hou),會(hui)裂(lie)變(bian)為(wei)完(wan)全(quan)無(wu)害(hai)的(de)氧(yang)原(yuan)子(zi),不(bu)會(hui)產(chan)生(sheng)任(ren)何(he)二(er)次(ci)汙(wu)染(ran),因(yin)此(ci)臭(chou)氧(yang)已(yi)越(yue)來(lai)越(yue)多(duo)地(di)用(yong)來(lai)代(dai)替(ti)氯(lv)及(ji)其(qi)化(hua)合(he)物(wu)的(de)消(xiao)毒(du)。隨(sui)著(zhe)人(ren)們(men)環(huan)保(bao)意(yi)識(shi)的(de)增(zeng)強(qiang),臭(chou)氧(yang)將(jiang)會(hui)成(cheng)為(wei)公(gong)認(ren)的(de)最(zui)佳(jia)消(xiao)毒(du)劑(ji)之(zhi)一(yi)。本(ben)文(wen)就(jiu)產(chan)生(sheng)臭(chou)氧(yang)的(de)中(zhong)頻(pin)臭(chou)氧(yang)發(fa)生(sheng)器(qi)的(de)相(xiang)關(guan)技(ji)術(shu)問(wen)題(ti)作(zuo)簡(jian)要(yao)討(tao)論(lun)。
2 臭氧的生成原理 臭氧的工業生產方法,通常應用高壓無聲放電原理:rangjinghuaganzaodekongqihuozheyangqiliuguogaoyadianjijianxi,zaitongguogaigaoyafangdianjianxishi,bufenyangfenzizhongdehuahejianduankaiershengchengyangyuanzi,zaiyidingtiaojianxiayangyuanziyuyangfenzijiehejiushengchengchouyang。zhezhongchouyangchanshengchouyangdefangfachengweidianyunfangdianfa,qigongzuoyuanliyejiushidangfangdianqijianliangdianjijiansuojiadegaopinzhengxianjiaoliudianyadayulinjieqiyundianyashi,zaifangdiandianjidebiaomianshangchanshengdianyunfangdian。
3 中頻臭氧發生器的係統結構 中頻臭氧發生器的由4個部分組成:(1)電源部分,由變頻器及變壓器組成,將工頻市電轉換為高頻高壓電源,一般為2000V至8000V,頻率為400至1000Hz,用以提供中頻高壓電源;(2)氣源部分,臭氧發生器可以利用2種氣源,一種為空氣由無油空壓機、幹(gan)燥(zao)器(qi)等(deng)提(ti)供(gong)。另(ling)一(yi)種(zhong)為(wei)純(chun)氧(yang)或(huo)者(zhe)富(fu)氧(yang)空(kong)氣(qi),由(you)氧(yang)氣(qi)瓶(ping)或(huo)者(zhe)製(zhi)氧(yang)機(ji)提(ti)供(gong)。空(kong)氣(qi)或(huo)者(zhe)氧(yang)氣(qi)進(jin)入(ru)發(fa)生(sheng)器(qi)之(zhi)後(hou)需(xu)要(yao)適(shi)度(du)的(de)幹(gan)燥(zao)和(he)減(jian)壓(ya),經(jing)計(ji)量(liang)後(hou)連(lian)續(xu)地(di)送(song)入(ru)臭(chou)氧(yang)發(fa)生(sheng)放(fang)電(dian)室(shi);(3)臭氧發生放電室,采用垂直管式單元氣室,由電極管、介jie電dian管guan或huo者zhe水shui管guan等deng組zu成cheng。放fang電dian室shi兩liang端duan連lian接jie不bu鏽xiu鋼gang管guan用yong於yu氣qi流liu通tong路lu,放fang電dian室shi的de二er個ge放fang電dian片pian背bei麵mian貼tie鋁lv質zhi散san熱re片pian進jin行xing風feng冷leng卻que或huo水shui冷leng卻que。氧yang氣qi或huo空kong氣qi進jin入ru放fang電dian室shi後hou被bei分fen為wei二er路lu,沿yan著zhe放fang電dian片pian的de表biao麵mian隙xi縫feng的de高gao頻pin高gao壓ya電dian場chang流liu過guo,部bu分fen氧yang分fen子zi中zhong的de化hua合he鍵jian斷duan開kai而er生sheng成cheng氧yang原yuan子zi,氧yang原yuan子zi與yu氧yang分fen子zi結jie合he生sheng成cheng臭chou氧yang分fen子zi,臭chou氧yang氣qi和he空kong氣qi的de混hun合he氣qi體ti沿yan管guan路lu泵beng出chu;(4)冷卻裝置,用軸流風扇對放電室進行風冷卻,當然也可以采用直流冷卻水,經計量後進入氣室水套。 zaishiyongguochengzhongyonghukeyitongguochouyangfashengqijitishangdekongzhimianbanduiqiliangjinxingtiaojie,yibiantiaojiechouyangdechanliang,yeketongguoqidiancishidianliubiaohedianyabiaolaiduiqijinxingjiankong。zhongpinchouyangfashengqidejibenjiegoukuangturutu1所示。 圖1 係統結構
4 相關技術說明 1)變頻器的高頻輸出響應 台達變頻器B係列是新一代高功能無感測向量控製型變頻器, 功能齊全、調速精度高、穩定性好,可應用範圍廣;V係列高性能無感測磁束矢量型變頻器是結合現代電力電子與微電腦控製技術所設計的一款高科技產品,具有響應速度快、精度高、輸出力矩大(最大200%轉矩電流)以及定位控製等特點,可廣泛應用於產業機械、工廠過程控製自動化、建築、石化、冶金、鋼鐵、能源、電力、樓宇、環保等國民經濟各行各業。台達B、V係(xi)列(lie)均(jun)具(ju)有(you)高(gao)頻(pin)輸(shu)出(chu)的(de)功(gong)能(neng),通(tong)過(guo)其(qi)高(gao)頻(pin)輸(shu)出(chu)直(zhi)接(jie)給(gei)變(bian)壓(ya)器(qi)供(gong)電(dian),簡(jian)化(hua)了(le)臭(chou)氧(yang)電(dian)源(yuan)電(dian)路(lu)的(de)設(she)計(ji),其(qi)完(wan)善(shan)的(de)保(bao)護(hu)措(cuo)施(shi)保(bao)證(zheng)了(le)該(gai)中(zhong)頻(pin)電(dian)源(yuan)係(xi)統(tong)的(de)可(ke)靠(kao)性(xing)和(he)穩(wen)定(ding)性(xing),完(wan)善(shan)的(de)控(kong)製(zhi)算(suan)法(fa),可(ke)保(bao)證(zheng)高(gao)頻(pin)輸(shu)出(chu)電(dian)流(liu)的(de)穩(wen)定(ding)。圖(tu)2是shi在zai變bian頻pin器qi的de輸shu出chu端duan無wu電dian抗kang器qi,變bian壓ya器qi工gong作zuo在zai額e定ding頻pin率lv之zhi上shang的de電dian流liu響xiang應ying波bo形xing,由you圖tu可ke以yi看kan出chu,台tai達da變bian頻pin器qi在zai負fu載zai衝chong擊ji比bi較jiao大da的de情qing況kuang下xia,仍reng然ran能neng夠gou保bao證zheng電dian流liu的de平ping滑hua性xing。 圖2 變頻器的輸出響應
2)變頻技術在臭氧發生器中的應用 電(dian)源(yuan)係(xi)統(tong)是(shi)臭(chou)氧(yang)產(chan)生(sheng)過(guo)程(cheng)中(zhong)的(de)關(guan)鍵(jian)部(bu)件(jian),它(ta)不(bu)僅(jin)影(ying)響(xiang)臭(chou)氧(yang)發(fa)生(sheng)係(xi)統(tong)的(de)穩(wen)定(ding)可(ke)靠(kao)性(xing),而(er)且(qie)也(ye)決(jue)定(ding)了(le)臭(chou)氧(yang)的(de)合(he)成(cheng)效(xiao)率(lv)。目(mu)前(qian)臭(chou)氧(yang)發(fa)生(sheng)器(qi)中(zhong)的(de)電(dian)源(yuan)係(xi)統(tong)可(ke)以(yi)根(gen)據(ju)頻(pin)率(lv)劃(hua)分(fen)為(wei):工頻電源、中頻電源、高頻電源。頻率在400-1000Hz的電源稱為中頻電源,1000Hzyishangdedianyuanchengweigaopindianyuan。dianjigongzuotexingyaoqiuyuqipipeidegongdiandianyuanbixujubeiwendingdeshuchupinlvheshidangdedianyafengzhi,zhiyaozheyangcainengbaozhengdianjigaoxiao、可靠地工作。為使臭氧產量穩定,供電電源的輸出功率應該保持足夠恒定。通常臭氧發生器中的電源采用電壓調節器,結構簡單、成本較低。但存在工作頻率不穩定、輸出電壓隨輸入交流電壓波動而變化。采用變頻器加變壓器的方式不但可產生需要的恒功率高壓電源而且操作方便、性能可靠,選用台達VFD-B或者VFD-V係列BH版本的變頻器高速功能,就可滿足臭氧發生器電源的要求。在現場應用中,變壓器輸入端電壓為單相105V, 頻率在800Hz的.參數如表1 所示。 表1 參數設定表
變bian頻pin器qi的de操cao作zuo麵mian板ban可ke以yi外wai接jie到dao機ji器qi的de外wai麵mian,以yi方fang便bian用yong戶hu的de控kong製zhi,但dan是shi設she定ding的de參can數shu必bi須xu是shi不bu可ke修xiu改gai的de,以yi免mian引yin起qi用yong戶hu的de錯cuo誤wu無wu操cao作zuo,導dao致zhi變bian壓ya器qi的de輸shu出chu電dian壓ya過guo高gao,輸shu出chu發fa生sheng畸ji變bian,影ying響xiang臭chou氧yang的de產chan能neng。中zhong頻pin高gao壓ya電dian源yuan的de結jie構gou如ru圖tu3所示。 圖3 中頻高壓電源結構圖
5 結束語 隨著人們對環保意識的加強,臭氧發生器的應用將越來越普遍。台達B、V係xi列lie變bian頻pin器qi是shi實shi現xian中zhong頻pin臭chou氧yang發fa生sheng器qi電dian源yuan係xi統tong的de關guan鍵jian部bu件jian,它ta能neng適shi應ying高gao壓ya變bian壓ya器qi的de負fu載zai波bo動dong工gong況kuang作zuo穩wen定ding的de輸shu出chu。采cai用yong上shang述shu方fang案an實shi現xian的de電dian源yuan係xi統tong,降jiang低di了le變bian壓ya器qi的de工gong作zuo電dian壓ya,提ti高gao了le係xi統tong的de可ke靠kao性xing和he穩wen定ding性xing,並bing可ke以yi保bao證zheng高gao效xiao率lv地di產chan生sheng臭chou氧yang。
參考文獻[略] 作者簡介 劉元剛 男 工程師 現任職於中達電通股份有限公司。