電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)熱器(qi)(qi)工作原(yuan)理：電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)熱是利(li)用電(dian)(dian)(dian)(dian)磁(ci)(ci)感應原(yuan)理將(jiang)電(dian)(dian)(dian)(dian)能轉(zhuan)(zhuan)換為(wei)(wei)(wei)熱能的(de)(de)能量轉(zhuan)(zhuan)換過(guo)(guo)(guo)程，由整(zheng)流(liu)(liu)電(dian)(dian)(dian)(dian)路(lu)將(jiang)50/60Hz的(de)(de)交流(liu)(liu)電(dian)(dian)(dian)(dian)壓轉(zhuan)(zhuan)變(bian)(bian)成(cheng)(cheng)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)壓，再(zai)經過(guo)(guo)(guo)功率控(kong)制電(dian)(dian)(dian)(dian)路(lu)將(jiang)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)壓轉(zhuan)(zhuan)換成(cheng)(cheng)頻(pin)(pin)率為(wei)(wei)(wei)20～40kHz的(de)(de)高(gao)頻(pin)(pin)電(dian)(dian)(dian)(dian)壓，當高(gao)速變(bian)(bian)化的(de)(de)交流(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)通(tong)過(guo)(guo)(guo)線(xian)圈時，線(xian)圈會(hui)產生高(gao)速變(bian)(bian)化的(de)(de)磁(ci)(ci)場(chang)(chang)，磁(ci)(ci)場(chang)(chang)內(nei)的(de)(de)交變(bian)(bian)磁(ci)(ci)力(li)線(xian)通(tong)過(guo)(guo)(guo)金屬(shu)管道時（導磁(ci)(ci)、導電(dian)(dian)(dian)(dian)材(cai)料），管壁體(ti)內(nei)產生無(wu)數的(de)(de)小渦流(liu)(liu)，使(shi)輸油(you)管道的(de)(de)管壁本身自行發熱與原(yuan)油(you)進(jin)行熱交換，達到加(jia)熱原(yuan)油(you)的(de)(de)目(mu)的(de)(de)。變(bian)(bian)頻(pin)(pin)器(qi)(qi)是高(gao)頻(pin)(pin)電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)熱器(qi)(qi)的(de)(de)核心部件(jian)，是利(li)用電(dian)(dian)(dian)(dian)力(li)半導體(ti)器(qi)(qi)件(jian)的(de)(de)通(tong)斷作用將(jiang)工頻(pin)(pin)電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)換為(wei)(wei)(wei)另頻(pin)(pin)率的(de)(de)電(dian)(dian)(dian)(dian)能控(kong)制裝(zhuang)置。目(mu)前使(shi)用的(de)(de)變(bian)(bian)頻(pin)(pin)器(qi)(qi)主要采用交流(liu)(liu)—直(zhi)(zhi)流(liu)(liu)—交流(liu)(liu)方式，先(xian)把(ba)工頻(pin)(pin)交流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)通(tong)過(guo)(guo)(guo)整(zheng)流(liu)(liu)器(qi)(qi)轉(zhuan)(zhuan)換成(cheng)(cheng)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，然后再(zai)把(ba)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)轉(zhuan)(zhuan)換成(cheng)(cheng)頻(pin)(pin)率、電(dian)(dian)(dian)(dian)壓均(jun)可控(kong)制的(de)(de)交流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)供給電(dian)(dian)(dian)(dian)動(dong)機。變(bian)(bian)頻(pin)(pin)器(qi)(qi)的(de)(de)電(dian)(dian)(dian)(dian)路(lu)般由整(zheng)流(liu)(liu)、中間直(zhi)(zhi)流(liu)(liu)環(huan)節、逆變(bian)(bian)和控(kong)制4個部分組成(cheng)(cheng)。整(zheng)流(liu)(liu)部分為(wei)(wei)(wei)三相橋式不可控(kong)整(zheng)流(liu)(liu)器(qi)(qi)，逆變(bian)(bian)部分為(wei)(wei)(wei)IGBT三相橋式逆變(bian)(bian)器(qi)(qi)且輸出為(wei)(wei)(wei)PWM波形，中間直(zhi)(zhi)流(liu)(liu)環(huan)節為(wei)(wei)(wei)濾波、直(zhi)(zhi)流(liu)(liu)儲(chu)能和緩(huan)沖無(wu)功功率。

電磁加(jia)熱器注意(yi)事項(xiang)：

1、主(zhu)機要定(ding)期除塵，般1個(ge)月除次，可用軟毛刷(shua)或(huo)高(gao)壓氣槍除塵，以保(bao)證(zheng)儀器內部(bu)良好的通風環境。

2、如使(shi)用環境是(shi)帶有腐蝕性氣體的地方須噴上緣清漆(qi)。或者用其它的緣防腐材料。

3、空氣溫度不能高于(yu)50℃。

4、電感量(liang)只是應用(yong)的其中(zhong)個參數而已，具(ju)體要(yao)實(shi)測工作頻率(lv)(lv)和電流，通過(guo)增減(jian)線圈匝數來匹(pi)配功率(lv)(lv)。

電磁加熱器經常(chang)燒壞的幾個(ge)原因：

1、與工作(zuo)環境(jing)有關：正常來說電(dian)磁加熱控制器(qi)工作(zuo)環境(jing)般灰塵較多，灰塵多了之后，對(dui)電(dian)磁加熱控制主(zhu)板就(jiu)非常不利。這(zhe)就(jiu)需要我們要定期清理電(dian)磁加熱器(qi)上(shang)灰塵。其次(ci)就(jiu)是室內通風(feng)要做好，避(bi)免風(feng)扇被(bei)卡住而起(qi)不到主(zhu)板散熱效(xiao)果(guo)從(cong)而使得(de)元器(qi)件過(guo)熱而燒(shao)壞。

2、與工作(zuo)時(shi)長有關(guan)：般(ban)像(xiang)家(jia)用的(de)(de)電(dian)(dian)磁爐每天(tian)真正工作(zuo)時(shi)間(jian)只有幾個(ge)小(xiao)時(shi)，而諸如(ru)塑料機(ji)之類的(de)(de)行(xing)業每天(tian)天(tian)的(de)(de)工作(zuo)時(shi)間(jian)平(ping)均超過10小(xiao)時(shi)，許多廠家(jia)機(ji)器(qi)的(de)(de)運作(zuo)時(shi)間(jian)甚(shen)至更長，因此，我(wo)們企業在選(xuan)購(gou)時(shi)定要看準電(dian)(dian)磁加熱控(kong)制器(qi)的(de)(de)質量，購(gou)買(mai)高質量的(de)(de)電(dian)(dian)磁加熱控(kong)制器(qi)，或(huo)者合理安排(pai)機(ji)器(qi)運作(zuo)時(shi)間(jian)。

3、與(yu)電(dian)磁(ci)加熱線(xian)圈(quan)(quan)有(you)關：電(dian)磁(ci)加熱圈(quan)(quan)著(zhu)水濕了或者破(po)皮以及(ji)兩線(xian)之(zhi)間短(duan)路(lu)等都是會造成(cheng)電(dian)磁(ci)加熱控制器燒壞(huai)。

4、出現(xian)間題不(bu)要擅(shan)自(zi)處(chu)理：整流橋堆損壞導致跳(tiao)閘(zha)，從(cong)而導致電(dian)磁(ci)(ci)加(jia)熱(re)控制(zhi)器(qi)燒壞，因(yin)此，在遇到(dao)電(dian)磁(ci)(ci)加(jia)熱(re)設備在工(gong)作時間突(tu)然(ran)跳(tiao)閘(zha)不(bu)要擅(shan)自(zi)處(chu)理，定要聯系我們技(ji)術人員(yuan)來為您解決故障，以避免(mian)過度損壞。

普及(ji)下電(dian)磁(ci)(ci)(ci)加熱器(qi)的(de)應(ying)用原理(li)，電(dian)磁(ci)(ci)(ci)加熱是將380V50Hz交流(liu)(liu)電(dian)變成530VDC-560VDC50HZ直流(liu)(liu)電(dian)，再(zai)經過(guo)變頻控制技術(shu)逆變成5KHZ-30Hz的(de)高頻交流(liu)(liu)電(dian)流(liu)(liu)，通(tong)過(guo)電(dian)磁(ci)(ci)(ci)加熱感應(ying)器(qi)與電(dian)磁(ci)(ci)(ci)線(xian)圈(quan)組合轉換為高頻交變磁(ci)(ci)(ci)場，交變磁(ci)(ci)(ci)場的(de)磁(ci)(ci)(ci)力線(xian)作用到金屬(shu)管(guan)道上(shang)產生鍋流(liu)(liu)，從而快速加熱金屬(shu)管(guan)道。

磁加熱器(qi)安(an)裝的要求(qiu)有什么?

1、電(dian)磁加熱器(qi)要安裝在不進水或水霧、不潮(chao)濕、干凈的工作環境。

2、電磁加熱(re)器如果安裝在電柜中，定要做好通風，保證設(she)備散熱(re)良(liang)好。

3、電磁(ci)加(jia)(jia)熱器的風扇(shan)和進風口很(hen)容易堆積灰塵，平常需要檢(jian)查(cha)和清理灰塵，以防風扇(shan)燒(shao)壞或者(zhe)進風口處堵塞，防止加(jia)(jia)熱器過熱導致(zhi)機器故(gu)障。

4、對于功率大的(de)電磁(ci)加熱器，380V接線(xian)應(ying)按(an)4～6A/mm2安(an)(an)裝(zhuang)，零線(xian)接大于1mm2就可以(yi)。對于220V電磁(ci)加熱器，火線(xian)和零線(xian)同時應(ying)按(an)4～6A/mm2安(an)(an)裝(zhuang)，以(yi)保證使用(yong)安(an)(an)全。

電磁(ci)(ci)加熱(re)控制器(qi)的兩(liang)種啟動(dong)方式(shi)(shi)：般(ban)電磁(ci)(ci)加熱(re)器(qi)可以有兩(liang)種啟動(dong)方式(shi)(shi)，

種是(shi)軟(ruan)(ruan)啟動(dong)方(fang)式，另(ling)種是(shi)硬啟動(dong)方(fang)法(fa)(fa)。軟(ruan)(ruan)啟動(dong)方(fang)法(fa)(fa)是(shi)用信(xin)號(hao)(hao)(hao)(hao)線端接(jie)(jie)(jie)(jie)(jie)入+號(hao)(hao)(hao)(hao)，另(ling)端接(jie)(jie)(jie)(jie)(jie)入號(hao)(hao)(hao)(hao)，當接(jie)(jie)(jie)(jie)(jie)通后功(gong)率(lv)(lv)則輸出，電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)就(jiu)正(zheng)常工(gong)作加(jia)(jia)(jia)熱(re)(re)(re)。當斷(duan)開信(xin)號(hao)(hao)(hao)(hao)線后則功(gong)率(lv)(lv)就(jiu)不(bu)輸出，電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)就(jiu)停(ting)止加(jia)(jia)(jia)熱(re)(re)(re)。這種叫(jiao)做軟(ruan)(ruan)啟動(dong)方(fang)式，使用軟(ruan)(ruan)啟動(dong)方(fang)式控制(zhi)電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)的(de)優勢是(shi)控制(zhi)電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)方(fang)便(bian)，可(ke)以(yi)自由(you)接(jie)(jie)(jie)(jie)(jie)入或斷(duan)開來控制(zhi)電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)工(gong)作或停(ting)止。軟(ruan)(ruan)啟動(dong)的(de)另(ling)外頭接(jie)(jie)(jie)(jie)(jie)的(de)是(shi)溫(wen)(wen)控器(qi)(qi)(qi)或繼電(dian)(dian)器(qi)(qi)(qi)，使用溫(wen)(wen)控器(qi)(qi)(qi)可(ke)以(yi)利于控制(zhi)電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)加(jia)(jia)(jia)熱(re)(re)(re)的(de)溫(wen)(wen)度(du)，和(he)調節溫(wen)(wen)度(du)的(de)大小(xiao)。當個(ge)溫(wen)(wen)區(qu)只(zhi)有組(zu)電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)的(de)時(shi)候，軟(ruan)(ruan)啟動(dong)方(fang)法(fa)(fa)只(zhi)要要信(xin)號(hao)(hao)(hao)(hao)線接(jie)(jie)(jie)(jie)(jie)通+號(hao)(hao)(hao)(hao)和(he)號(hao)(hao)(hao)(hao)就(jiu)可(ke)以(yi)了，當個(ge)溫(wen)(wen)區(qu)有兩個(ge)電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)的(de)時(shi)候，就(jiu)要把這兩個(ge)控制(zhi)主板的(de)+號(hao)(hao)(hao)(hao)信(xin)號(hao)(hao)(hao)(hao)線并聯(lian)(lian)，軟(ruan)(ruan)啟動(dong)信(xin)號(hao)(hao)(hao)(hao)線號(hao)(hao)(hao)(hao)并聯(lian)(lian)，當控制(zhi)+接(jie)(jie)(jie)(jie)(jie)通的(de)時(shi)候功(gong)率(lv)(lv)就(jiu)輸出，電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)就(jiu)會正(zheng)常加(jia)(jia)(jia)熱(re)(re)(re)工(gong)作，當斷(duan)開十(shi)接(jie)(jie)(jie)(jie)(jie)通，電(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)控制(zhi)器(qi)(qi)(qi)就(jiu)停(ting)止加(jia)(jia)(jia)熱(re)(re)(re)。

另種(zhong)啟(qi)(qi)動方(fang)(fang)式(shi)(shi)就(jiu)是(shi)(shi)硬啟(qi)(qi)動方(fang)(fang)式(shi)(shi)，就(jiu)是(shi)(shi)將+號信線固定(ding)。但這種(zhong)方(fang)(fang)式(shi)(shi)不能靈活控制(zhi)電(dian)磁(ci)(ci)加(jia)熱器。相對比于硬啟(qi)(qi)動方(fang)(fang)式(shi)(shi)來說，軟啟(qi)(qi)動方(fang)(fang)式(shi)(shi)更具有優勢(shi)，軟啟(qi)(qi)動電(dian)磁(ci)(ci)加(jia)熱器因使(shi)用(yong)方(fang)(fang)便，利于控制(zhi)，所以大多數都(dou)是(shi)(shi)使(shi)用(yong)軟啟(qi)(qi)動來控制(zhi)電(dian)磁(ci)(ci)加(jia)熱器的。

使用電磁加熱(re)器時這(zhe)幾點不可忽視：

1、電磁加熱器主機的安(an)頓環境不(bu)能在-20℃以下，高也(ye)不(bu)能超過50℃，且要(yao)枯燥、通風。

2、接入電(dian)(dian)(dian)(dian)源前：清(qing)楚電(dian)(dian)(dian)(dian)器作業需要(yao)的(de)總(zong)電(dian)(dian)(dian)(dian)量和供(gong)電(dian)(dian)(dian)(dian)變壓器的(de)總(zong)容量，不能(neng)超過(guo)供(gong)電(dian)(dian)(dian)(dian)的(de)總(zong)容量，也盡可能(neng)不要(yao)去(qu)糟蹋。別的(de)要(yao)辨(bian)明單相220v、三(san)相380v電(dian)(dian)(dian)(dian)壓，不能(neng)接錯。終要(yao)留(liu)意的(de)就(jiu)是，當電(dian)(dian)(dian)(dian)網的(de)電(dian)(dian)(dian)(dian)壓在規則電(dian)(dian)(dian)(dian)壓規模的(de)上下10%起浮時(shi)，制(zhi)止運用大功率(lv)電(dian)(dian)(dian)(dian)磁加熱設備。

3、變頻電(dian)磁(ci)加(jia)熱(re)器是怕水(shui)(shui)的，因而、總歸，電(dian)磁(ci)加(jia)熱(re)器不(bu)能有水(shui)(shui)進入(ru)，任何狀(zhuang)況下都要防止這(zhe)狀(zhuang)況，水(shui)(shui)蒸汽(qi)、濕氣過重也(ye)不(bu)可，電(dian)磁(ci)加(jia)熱(re)線(xian)也(ye)相同怕水(shui)(shui)，切忌用濕潤(run)的手去(qu)觸摸或是在電(dian)磁(ci)加(jia)熱(re)線(xian)上搭(da)曬(shai)濕潤(run)的衣物等(deng)等(deng)。

4、電(dian)磁(ci)加熱器生產廠(chang)家印刷電(dian)路板(ban)(ban)周圍不(bu)能有塑(su)料(liao)、乙(yi)烯基和聚苯乙(yi)烯泡沫塑(su)料(liao)(抗靜電(dian)類(lei)型在外)，靜電(dian)很(hen)可能會損壞(huai)這些電(dian)路。不(bu)要觸摸操控接口板(ban)(ban)或操控板(ban)(ban)的IC電(dian)路。

5、電(dian)磁(ci)(ci)加熱線(xian)外表是(shi)石棉(mian)原料，怕磨(mo)，因而電(dian)磁(ci)(ci)加熱線(xian)應防止轟動兇(xiong)猛的(de)(de)設(she)備(bei)，防止磨(mo)損的(de)(de)電(dian)磁(ci)(ci)加熱線(xian)呈現漏電(dian)現象，觸(chu)摸接地的(de)(de)金屬物體，用手觸(chu)摸這些操(cao)控(kong)器之前消除身體上的(de)(de)靜電(dian)(封閉操(cao)控(kong)器的(de)(de)電(dian)源。并且在觸(chu)摸操(cao)控(kong)器時堅持接地)。

6、任(ren)何替(ti)換設備、檢修(xiu)設備環(huan)節定要(yao)斷電今后才干進行，不要(yao)用手或導體(ti)(ti)觸摸印刷電路(lu)板上的元件(jian)或導體(ti)(ti)。

7、任(ren)何(he)替換設(she)備(bei)、檢修設(she)備(bei)環(huan)節定要斷電今后才(cai)干進行(xing)。

電磁(ci)加熱器(qi)線(xian)圈(quan)(quan)短路(lu)(lu)，本(ben)控制器(qi)具有線(xian)圈(quan)(quan)短路(lu)(lu)檢(jian)測功能，通過(guo)對IGBT模(mo)塊UCE飽合壓降(jiang)檢(jian)測來(lai)保(bao)護因線(xian)圈(quan)(quan)短路(lu)(lu)引起的IGBT損壞(huai)。本(ben)控制器(qi)連續三次(ci)檢(jian)測UCE超過(guo)設定值，則會關閉輸(shu)出。顯(xian)(xian)示(shi)窗1會顯(xian)(xian)示(shi)“E4”并閃爍，“短路(lu)(lu)”指示(shi)燈會閃爍提示(shi)，蜂鳴音每5秒(miao)短響4次(ci)。解決方(fang)法：

1、檢(jian)查(cha)線圈(quan)是是否(fou)有漏(lou)電(dian)、短(duan)路或電(dian)感(gan)量(liang)太小(xiao)。

2、檢測主板與IGBT連線是否開路。

3、檢測D10、D11、D12、D13、ZD1、ZD2、ZD3、ZD4、R29、R26、R27、R28等元件是否開路(lu)或變。

4、檢(jian)測光耦U1、U2、U3、U4是否(fou)損壞。

5、檢測(ce)U5第19腳是否為高電平(ping)，否則U5已損(sun)壞。