電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱簡介：電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱也稱電(dian)(dian)(dian)(dian)磁(ci)(ci)感應加(jia)(jia)(jia)(jia)熱，即(ji)電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱(外(wai)文:Electromagnetic heating縮寫：EH)技(ji)術(shu)，電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱的原理是(shi)(shi)通(tong)過(guo)電(dian)(dian)(dian)(dian)子線(xian)路板組成部(bu)分產(chan)生(sheng)交變(bian)磁(ci)(ci)場、當用(yong)含鐵質容(rong)器(qi)放置上(shang)面時(shi)，容(rong)器(qi)表面即(ji)切割(ge)交變(bian)磁(ci)(ci)力線(xian)而(er)(er)在容(rong)器(qi)底部(bu)金屬部(bu)分產(chan)生(sheng)交變(bian)的電(dian)(dian)(dian)(dian)流(liu)（即(ji)渦流(liu)），渦流(liu)使容(rong)器(qi)底部(bu)的載(zai)流(liu)子高(gao)(gao)速無(wu)規則運動，載(zai)流(liu)子與原子互相碰撞、摩擦而(er)(er)產(chan)生(sheng)熱能。從而(er)(er)起到(dao)加(jia)(jia)(jia)(jia)熱物(wu)品(pin)的效果(guo)。因為(wei)是(shi)(shi)鐵制容(rong)器(qi)自(zi)身發熱，所(suo)以熱轉(zhuan)化率特(te)別高(gao)(gao)，高(gao)(gao)可達到(dao)95%是(shi)(shi)種(zhong)直接(jie)加(jia)(jia)(jia)(jia)熱的方(fang)式。電(dian)(dian)(dian)(dian)磁(ci)(ci)爐，電(dian)(dian)(dian)(dian)磁(ci)(ci)灶 電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱電(dian)(dian)(dian)(dian)飯鍋都是(shi)(shi)采用(yong)的電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱技(ji)術(shu)。

電磁加熱器線圈(quan)(quan)(quan)短(duan)路(lu)，本控制器具有線圈(quan)(quan)(quan)短(duan)路(lu)檢測功(gong)能，通過對IGBT模塊UCE飽合壓(ya)降檢測來保護因線圈(quan)(quan)(quan)短(duan)路(lu)引起的(de)IGBT損(sun)壞。本控制器連續三次檢測UCE超過設定值(zhi)，則會(hui)(hui)關閉(bi)輸出。顯示(shi)窗1會(hui)(hui)顯示(shi)“E4”并閃爍，“短(duan)路(lu)”指示(shi)燈會(hui)(hui)閃爍提示(shi)，蜂鳴音每5秒短(duan)響4次。解決方法：

1、檢查線圈是是否有漏電(dian)、短路或電(dian)感(gan)量太小。

2、檢測(ce)主板與(yu)IGBT連(lian)線是否(fou)開路。

3、檢(jian)測D10、D11、D12、D13、ZD1、ZD2、ZD3、ZD4、R29、R26、R27、R28等元件(jian)是(shi)否開路或變。

4、檢測(ce)光耦U1、U2、U3、U4是否損壞。

5、檢測U5第19腳是否為高電平，否則U5已損(sun)壞。

電(dian)(dian)磁加(jia)熱(re)(re)(re)器(qi)的(de)溫(wen)度調(diao)節不(bu)準是(shi)(shi)(shi)怎么回事？ 電(dian)(dian)磁加(jia)熱(re)(re)(re)器(qi)系統包括電(dian)(dian)磁加(jia)熱(re)(re)(re)控(kong)(kong)制(zhi)(zhi)(zhi)器(qi)和電(dian)(dian)磁加(jia)熱(re)(re)(re)圈這(zhe)兩部分，每個(ge)行(xing)業中(zhong)對(dui)于溫(wen)控(kong)(kong)的(de)要(yao)求(qiu)(qiu)都不(bu)樣(yang)，下面就來介紹電(dian)(dian)磁加(jia)熱(re)(re)(re)器(qi)如(ru)何達到(dao)精(jing)確是(shi)(shi)(shi)溫(wen)控(kong)(kong)效(xiao)果?塑(su)料(liao)(liao)(liao)行(xing)業中(zhong)加(jia)熱(re)(re)(re)器(qi)，重(zhong)要(yao)指標就是(shi)(shi)(shi)保(bao)證機器(qi)各溫(wen)區的(de)溫(wen)度精(jing)確性(xing)，各種(zhong)塑(su)料(liao)(liao)(liao)原料(liao)(liao)(liao)對(dui)于溫(wen)度的(de)敏感(gan)性(xing)雖然不(bu)樣(yang)，但在生產過程中(zhong)對(dui)于溫(wen)度精(jing)確性(xing)的(de)要(yao)求(qiu)(qiu)都比較高，很(hen)多塑(su)料(liao)(liao)(liao)產品(pin)要(yao)求(qiu)(qiu)溫(wen)度不(bu)能超過±5℃，因(yin)此，很(hen)多種(zhong)類的(de)塑(su)料(liao)(liao)(liao)機有采用風(feng)冷或水冷進行(xing)降(jiang)溫(wen)控(kong)(kong)制(zhi)(zhi)(zhi)，否則，加(jia)工出(chu)(chu)來的(de)東西可能不(bu)是(shi)(shi)(shi)廢品(pin)就是(shi)(shi)(shi)次品(pin)。電(dian)(dian)磁加(jia)熱(re)(re)(re)器(qi)利用電(dian)(dian)磁加(jia)熱(re)(re)(re)控(kong)(kong)制(zhi)(zhi)(zhi)板，再(zai)配以(yi)必要(yao)的(de)風(feng)冷、水冷裝置(zhi)(zhi)，溫(wen)度控(kong)(kong)制(zhi)(zhi)(zhi)可以(yi)精(jing)確到(dao)±1℃。當(dang)然同(tong)時(shi)也要(yao)對(dui)塑(su)料(liao)(liao)(liao)機性(xing)能及塑(su)料(liao)(liao)(liao)原料(liao)(liao)(liao)有全面了(le)解及進行(xing)必要(yao)合理配置(zhi)(zhi)。這(zhe)樣(yang)可以(yi)降(jiang)低企業損耗、提(ti)高企業效(xiao)益。產品(pin)性(xing)能穩(wen)定(ding)、節能、環保(bao)，產出(chu)(chu)的(de)顆(ke)粒(li)品(pin)質好。

電磁加熱器的(de)六種調(diao)節功(gong)率方(fang)式：

1、調頻法。

2、間隙加熱法。

3、移相脈(mo)寬調制(zhi)法(fa)（全橋移相PWM控(kong)制(zhi)）。

4、改變(bian)整流電(dian)壓法。

5、脈沖功率輸出變壓器初抽(chou)頭切(qie)換法。

6、變壓器初(chu)抽頭切換、調(diao)頻(pin)、調(diao)壓法。

電磁(ci)加熱器用薄膜電容的要求和注(zhu)意事項：

1、耐壓選擇不當(dang)：例(li)如,交(jiao)流(liu)輸入端,380V的(de)線(xian)電壓,EMI電路(lu)用的(de)電容(rong)器(qi)(qi),三角形接法,部分工程師選擇MKP-X2 275V.AC (這會導致電容(rong)擊穿)。例(li)如,LC諧(xie)(xie)(xie)振(zhen)回路(lu),很多(duo)工程師以為半橋諧(xie)(xie)(xie)振(zhen)電容(rong),耐壓只是直流(liu)母(mu)線(xian)537V的(de)半即可(實(shi)際(ji)上這是嚴重錯誤的(de))。國內的(de)機(ji)芯(xin),有使用的(de)薄膜(mo)電容(rong)器(qi)(qi)耐壓等1200V 1600V 2000V 2500V 3000V 4000V 需要根據自己的(de)實(shi)際(ji)電路(lu)來選擇。正確(que)的(de)方式(shi)是用示波(bo)器(qi)(qi)加高壓探(tan)頭,實(shi)際(ji)測量下機(ji)芯(xin)在大功率(lv)的(de)時候,諧(xie)(xie)(xie)振(zhen)電壓的(de)波(bo)形。

2、電(dian)流(liu)(liu)選擇不當：很多企(qi)業的(de)工(gong)程師,研發人(ren)員,對于(yu)直流(liu)(liu)母線(xian)支撐電(dian)容器,LC諧振(zhen)電(dian)容器,電(dian)容器的(de)電(dian)流(liu)(liu)方面根(gen)本就(jiu)沒經(jing)過(guo)具體計算和實(shi)際測(ce)(ce)量,造成電(dian)容器工(gong)作溫度(du)非常(chang)高,大(da)大(da)縮短薄膜電(dian)容器的(de)使(shi)用(yong)(yong)壽命,嚴重的(de)出(chu)現短時間就(jiu)炸掉電(dian)容器了(le)。正(zheng)確的(de)方式,就(jiu)是用(yong)(yong)電(dian)流(liu)(liu)互感器測(ce)(ce)量下諧振(zhen)回(hui)路的(de)電(dian)流(liu)(liu)值,還有通過(guo)機(ji)子在老化的(de)時候測(ce)(ce)測(ce)(ce)電(dian)容器的(de)溫升是否正(zheng)常(chang)。

3、接線(xian)方式不當(dang)：在設計電(dian)磁(ci)加熱機芯的(de)時候,很(hen)多情況(kuang)下需要多個(ge)薄膜電(dian)容(rong)器并(bing)聯(lian)使用.并(bing)聯(lian)的(de)好處(chu)就是(shi)可以增加過流(liu)(liu)能力,降低溫升(sheng).但(dan)是(shi)并(bing)聯(lian)電(dian)路,大的(de)問題是(shi)過流(liu)(liu)不均.由(you)于接線(xian)方式的(de)不當(dang),往往造成并(bing)聯(lian)的(de)幾只電(dian)容(rong)器,某個(ge)位(wei)置(zhi)的(de)電(dian)容(rong)器溫度高(gao),容(rong)易(yi)先壞掉(diao)。

電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)高溫線(xian)能(neng)不(bu)能(neng)繞(rao)兩層？大家都(dou)知(zhi)道電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)組成是(shi)由(you)電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)控制器(qi)(qi)(qi)(qi)以及電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)線(xian)圈兩個部分組合(he)才(cai)(cai)是(shi)個加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)系統，兩者之間缺不(bu)可(ke)。目前使用(yong)電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)客(ke)戶(hu)(hu)越來越多(duo)(duo)，很多(duo)(duo)客(ke)戶(hu)(hu)都(dou)是(shi)外地的(de)(de)(de)(de)(de)，這(zhe)些地區如果要(yao)上門安裝的(de)(de)(de)(de)(de)話(hua)客(ke)戶(hu)(hu)所需要(yao)承擔(dan)的(de)(de)(de)(de)(de)成本就比(bi)較(jiao)高，所以很多(duo)(duo)客(ke)戶(hu)(hu)為了(le)節省這(zhe)筆安裝費用(yong)都(dou)選著(zhu)自己來安裝電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)系統。在安裝的(de)(de)(de)(de)(de)時(shi)(shi)候(hou)有(you)客(ke)戶(hu)(hu)會(hui)疑(yi)惑電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)線(xian)圈太多(duo)(duo)了(le)能(neng)不(bu)能(neng)繞(rao)兩層。安裝電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)線(xian)圈的(de)(de)(de)(de)(de)時(shi)(shi)候(hou)如果被加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)體(ti)直徑或者長度比(bi)較(jiao)小，線(xian)圈又太多(duo)(duo)了(le)，線(xian)圈繞(rao)少了(le)電(dian)(dian)感量達不(bu)到(dao)就會(hui)工作不(bu)了(le)。這(zhe)個時(shi)(shi)候(hou)是(shi)可(ke)以采取(qu)電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)線(xian)圈繞(rao)雙層的(de)(de)(de)(de)(de)。線(xian)圈的(de)(de)(de)(de)(de)電(dian)(dian)感要(yao)達到(dao)80kw電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)控制器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)合(he)適值(zhi)才(cai)(cai)行。也(ye)不(bu)要(yao)擔(dan)心繞(rao)雙層對(dui)電(dian)(dian)磁(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)壽(shou)命會(hui)不(bu)會(hui)有(you)影響，只(zhi)要(yao)電(dian)(dian)感量值(zhi)達到(dao)合(he)適值(zhi)才(cai)(cai)真正的(de)(de)(de)(de)(de)對(dui)控制器(qi)(qi)(qi)(qi)不(bu)會(hui)有(you)損壞。

電壓340--350，電流65--68，加熱作用太慢(man)。有什(shen)么好辦(ban)法(fa)提高電壓嗎？

1、160KW的(de)(de)變壓(ya)器(qi)用(yong)了(le)125A的(de)(de)電流，那么也(ye)就是(shi)(shi)只用(yong)了(le)近1半的(de)(de)負載罷了(le)，這(zhe)個情況電壓(ya)由410V～415V降到340V～350V這(zhe)是(shi)(shi)不正常(chang)的(de)(de)，從數據上看您這(zhe)邊的(de)(de)供電網還是(shi)(shi)非(fei)常(chang)不錯的(de)(de)，這(zhe)里要(yao)是(shi)(shi)線路太長，線損太大引起。

2、可以(yi)用(yong)(yong)電(dian)容補(bu)償(chang)(chang)(chang)嗎?工業上高壓電(dian)容補(bu)償(chang)(chang)(chang)，這要(yao)是(shi)針對變(bian)壓器功率(lv)(lv)因(yin)數太低（補(bu)償(chang)(chang)(chang)前只有(you)0.8左右），如果您的變(bian)壓器之前沒有(you)做(zuo)無功補(bu)償(chang)(chang)(chang)，那么這還是(shi)有(you)作用(yong)(yong)的，并且也定(ding)要(yao)補(bu)償(chang)(chang)(chang)，不然電(dian)力公司檢測出來(lai)會被罰款的，但(dan)如1剖析(xi)，您這邊要(yao)不是(shi)功率(lv)(lv)因(yin)數低造成，所以(yi)對于電(dian)壓的上升作用(yong)(yong)不大(da)。

3、50kw電(dian)磁(ci)加熱(re)器(qi)(qi)電(dian)流卻(que)只有65A～68A，依照(zhao)這個參(can)數(shu)核算這臺控制器(qi)(qi)連50KW都達不到，或許您被(bei)騙了，隨著電(dian)磁(ci)加熱(re)器(qi)(qi)行業的(de)競(jing)爭劇烈(lie)，有非常多不法的(de)商(shang)(shang)家經(jing)常用(yong)小(xiao)功率(lv)(lv)產品假充(chong)大(da)功率(lv)(lv)產品再(zai)以相(xiang)對較低的(de)價格進(jin)行販賣(mai)，如用(yong)40KW超載運用(yong)假充(chong)50KW甚至60KW再(zai)以比商(shang)(shang)場正常50KW或許60KW的(de)價了解到的(de)數(shu)據(ju)。

電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)熱(re)器(qi)(qi)(qi)(qi)工(gong)(gong)作原(yuan)理：電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)熱(re)是(shi)利(li)用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)磁(ci)(ci)感(gan)應(ying)原(yuan)理將電(dian)(dian)(dian)(dian)能(neng)(neng)轉(zhuan)換(huan)為(wei)熱(re)能(neng)(neng)的(de)(de)(de)能(neng)(neng)量(liang)轉(zhuan)換(huan)過(guo)程，由整(zheng)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)路將50/60Hz的(de)(de)(de)交(jiao)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)轉(zhuan)變(bian)成(cheng)(cheng)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，再(zai)經過(guo)功率(lv)(lv)控(kong)(kong)制電(dian)(dian)(dian)(dian)路將直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)轉(zhuan)換(huan)成(cheng)(cheng)頻(pin)(pin)率(lv)(lv)為(wei)20～40kHz的(de)(de)(de)高頻(pin)(pin)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，當(dang)高速變(bian)化的(de)(de)(de)交(jiao)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)通過(guo)線(xian)圈時，線(xian)圈會產生(sheng)高速變(bian)化的(de)(de)(de)磁(ci)(ci)場，磁(ci)(ci)場內的(de)(de)(de)交(jiao)變(bian)磁(ci)(ci)力(li)線(xian)通過(guo)金(jin)屬管道(dao)時（導磁(ci)(ci)、導電(dian)(dian)(dian)(dian)材料），管壁體(ti)內產生(sheng)無數的(de)(de)(de)小渦(wo)流(liu)(liu)(liu)(liu)(liu)，使輸油管道(dao)的(de)(de)(de)管壁本身自行(xing)發熱(re)與原(yuan)油進行(xing)熱(re)交(jiao)換(huan)，達到加(jia)(jia)熱(re)原(yuan)油的(de)(de)(de)目(mu)的(de)(de)(de)。變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)是(shi)高頻(pin)(pin)電(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)熱(re)器(qi)(qi)(qi)(qi)的(de)(de)(de)核心部件，是(shi)利(li)用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)力(li)半(ban)導體(ti)器(qi)(qi)(qi)(qi)件的(de)(de)(de)通斷(duan)作用(yong)(yong)(yong)(yong)將工(gong)(gong)頻(pin)(pin)電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)換(huan)為(wei)另(ling)頻(pin)(pin)率(lv)(lv)的(de)(de)(de)電(dian)(dian)(dian)(dian)能(neng)(neng)控(kong)(kong)制裝(zhuang)置。目(mu)前使用(yong)(yong)(yong)(yong)的(de)(de)(de)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)主(zhu)要(yao)采用(yong)(yong)(yong)(yong)交(jiao)流(liu)(liu)(liu)(liu)(liu)—直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)—交(jiao)流(liu)(liu)(liu)(liu)(liu)方式(shi)，先把工(gong)(gong)頻(pin)(pin)交(jiao)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)通過(guo)整(zheng)流(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)轉(zhuan)換(huan)成(cheng)(cheng)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，然(ran)后再(zai)把直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)轉(zhuan)換(huan)成(cheng)(cheng)頻(pin)(pin)率(lv)(lv)、電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)均可控(kong)(kong)制的(de)(de)(de)交(jiao)流(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)供給電(dian)(dian)(dian)(dian)動機。變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)的(de)(de)(de)電(dian)(dian)(dian)(dian)路般由整(zheng)流(liu)(liu)(liu)(liu)(liu)、中間(jian)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)環節、逆(ni)變(bian)和控(kong)(kong)制4個(ge)部分組成(cheng)(cheng)。整(zheng)流(liu)(liu)(liu)(liu)(liu)部分為(wei)三相(xiang)橋式(shi)不可控(kong)(kong)整(zheng)流(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)，逆(ni)變(bian)部分為(wei)IGBT三相(xiang)橋式(shi)逆(ni)變(bian)器(qi)(qi)(qi)(qi)且(qie)輸出為(wei)PWM波形，中間(jian)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)環節為(wei)濾(lv)波、直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)儲能(neng)(neng)和緩沖無功功率(lv)(lv)。