— 技術文章 —
NEWS CENTRES作者:中(zhong)輝(hui)電(dian)器 來源:www.shenzhentuliao.cn 發布(bu)時間:2019/4/30 16:29:41
電(dian)(dian)(dian)(dian)磁(ci)加(jia)熱(re)器的(de)(de)溫度(du)(du)調(diao)節不準是(shi)怎么回事? 電(dian)(dian)(dian)(dian)磁(ci)加(jia)熱(re)器系統包括電(dian)(dian)(dian)(dian)磁(ci)加(jia)熱(re)控制(zhi)器和電(dian)(dian)(dian)(dian)磁(ci)加(jia)熱(re)圈這(zhe)兩部分,每個行業中對于(yu)溫控的(de)(de)要(yao)(yao)求都不樣,下面(mian)就來介紹電(dian)(dian)(dian)(dian)磁(ci)加(jia)熱(re)器如何達到精(jing)確(que)是(shi)溫控效果?塑料行業中加(jia)熱(re)器,重要(yao)(yao)指標就是(shi)保證機器各溫區的(de)(de)溫度(du)(du)精(jing)確(que)性,各種塑料原料對于(yu)溫度(du)(du)的(de)(de)敏感性雖然不樣,但在生產過程中對于(yu)溫度(du)(du)精(jing)確(que)性的(de)(de)要(yao)(yao)求都比較高(gao),很(hen)多塑料產品要(yao)(yao)求溫度(du)(du)不能超過±5℃,因此,很(hen)多種類(lei)的(de)(de)塑料機有采用風冷或水冷進(jin)行降(jiang)溫控制(zhi),否則,加(jia)工出(chu)來的(de)(de)東西可(ke)能不是(shi)廢品就是(shi)次品。電(dian)(dian)(dian)(dian)磁(ci)加(jia)熱(re)器利用電(dian)(dian)(dian)(dian)磁(ci)加(jia)熱(re)控制(zhi)板,再配以必要(yao)(yao)的(de)(de)風冷、水冷裝置,溫度(du)(du)控制(zhi)可(ke)以精(jing)確(que)到±1℃。當然同時(shi)也要(yao)(yao)對塑料機性能及(ji)塑料原料有全面(mian)了解及(ji)進(jin)行必要(yao)(yao)合理配置。這(zhe)樣可(ke)以降(jiang)低企業損耗、提高(gao)企業效益。產品性能穩定(ding)、節能、環保,產出(chu)的(de)(de)顆粒品質好。
電磁加熱器應用范圍:
1、塑(su)料橡膠行業,如(ru):塑(su)料用吹膜機(ji)、拉絲機(ji)、注塑(su)機(ji),造粒機(ji),橡膠用擠出(chu)機(ji)、硫化機(ji)、電纜(lan)生產擠出(chu)機(ji)等。
2、醫藥化工行業,如:醫藥專(zhuan)用輸液(ye)袋、塑料器材(cai)生(sheng)產線(xian),化工行業液(ye)體(ti)加熱輸送管道等等。
3、能(neng)源、食品行業,如:原油輸(shu)送管(guan)道的加熱(re);食品機械,如:超貨機等需要(yao)電(dian)加熱(re)的設備。
4、大功(gong)率商用電(dian)磁灶機(ji)芯。
5、建(jian)材(cai)行業,如:燃氣管生(sheng)產線、塑料管材(cai)生(sheng)產線、PE塑料硬質平網、土工網機組(zu)(zu)、自動中空成型(xing)機、PE蜂(feng)窩板生(sheng)產線、單雙壁波紋管擠(ji)出(chu)生(sheng)產線、復(fu)合氣墊膜(mo)機組(zu)(zu)、PVC硬管、芯層發(fa)泡管生(sheng)產線、PP擠(ji)出(chu)透明片材(cai)生(sheng)產線、擠(ji)出(chu)聚苯乙烯發(fa)泡管材(cai)、PE纏(chan)繞膜(mo)機組(zu)(zu)。
6、印刷設備(bei)里的干燥加(jia)熱。
7、其它類(lei)似行業加(jia)熱。
電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)的(de)(de)(de)(de)耗電(dian)(dian)(dian)(dian)(dian)情(qing)況是(shi)(shi)(shi)怎樣的(de)(de)(de)(de)?工(gong)作(zuo)原理(li)是(shi)(shi)(shi)把220V或者(zhe)380V交(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian),整(zheng)流(liu)(liu)(liu)后轉換成(cheng)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian),再(zai)將直(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)進行濾波,利用IGBT或者(zhe)可(ke)控硅再(zai)將直(zhi)(zhi)(zhi)流(liu)(liu)(liu)變(bian)成(cheng)交(jiao)流(liu)(liu)(liu),在感應線(xian)圈(quan)(quan)內產生高頻磁(ci)(ci)(ci)(ci)力線(xian),是(shi)(shi)(shi)感應線(xian)圈(quan)(quan)內導體(ti)(ti)工(gong)件表面產生渦流(liu)(liu)(liu)依靠(kao)自生內阻(zu)發熱(re)(re)(re)(re)。電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)工(gong)作(zuo)中當(dang)溫(wen)(wen)(wen)(wen)(wen)度(du)沒達(da)到設(she)置(zhi)的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)時(shi),電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)就(jiu)會直(zhi)(zhi)(zhi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re),當(dang)達(da)到了(le)預(yu)設(she)的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)以(yi)后電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)就(jiu)停止(zhi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)了(le),也就(jiu)不再(zai)耗電(dian)(dian)(dian)(dian)(dian)了(le)。電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)每個(ge)小時(shi)的(de)(de)(de)(de)耗電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)多(duo)少與電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)(de)(de)時(shi)間(jian)(jian)(jian)長(chang)(chang)短有(you)關。電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)剛工(gong)作(zuo)是(shi)(shi)(shi)滿功(gong)率(lv),加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)溫(wen)(wen)(wen)(wen)(wen)度(du)了(le),就(jiu)是(shi)(shi)(shi)工(gong)作(zuo)會,停會。總體(ti)(ti)上(shang)來說(shuo),電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)耗電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)是(shi)(shi)(shi)很小的(de)(de)(de)(de),因(yin)為(wei)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)不是(shi)(shi)(shi)直(zhi)(zhi)(zhi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)工(gong)作(zuo)的(de)(de)(de)(de),而是(shi)(shi)(shi)有(you)間(jian)(jian)(jian)隙的(de)(de)(de)(de)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)(de)(de),先是(shi)(shi)(shi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re),然后達(da)到溫(wen)(wen)(wen)(wen)(wen)度(du)后就(jiu)停止(zhi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re),之后就(jiu)開始(shi)保溫(wen)(wen)(wen)(wen)(wen)工(gong)作(zuo),直(zhi)(zhi)(zhi)到溫(wen)(wen)(wen)(wen)(wen)度(du)沒達(da)到預(yu)設(she)的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)后再(zai)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)下,整(zheng)體(ti)(ti)上(shang)來講,電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)并不是(shi)(shi)(shi)直(zhi)(zhi)(zhi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)耗電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de),所(suo)以(yi)也是(shi)(shi)(shi)比較省電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)個(ge)原因(yin)。同時(shi)因(yin)為(wei)料筒上(shang)還包有(you)層保溫(wen)(wen)(wen)(wen)(wen)棉(mian),能起(qi)到保溫(wen)(wen)(wen)(wen)(wen)和隔熱(re)(re)(re)(re)的(de)(de)(de)(de)效果,那(nei)么熱(re)(re)(re)(re)量(liang)(liang)就(jiu)不會損失掉了(le),那(nei)么能夠持續(xu)恒(heng)溫(wen)(wen)(wen)(wen)(wen)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)(de)(de)時(shi)間(jian)(jian)(jian)就(jiu)越長(chang)(chang)了(le)。耗電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)也就(jiu)越小了(le)。通(tong)過(guo)上(shang)述對電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)感應加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)改造(zao)時(shi)所(suo)配功(gong)率(lv)的(de)(de)(de)(de)介(jie)紹,我們可(ke)以(yi)了(le)解電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)(de)(de)時(shi)間(jian)(jian)(jian)越短那(nei)么耗電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)就(jiu)越小,反(fan)之電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)器(qi)(qi)(qi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)(de)(de)時(shi)間(jian)(jian)(jian)越長(chang)(chang),耗電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)就(jiu)越大(da)。
電磁加(jia)熱(re)技術(shu)原理:
1、電(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)(re)器:電(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)(re)器是種利用電(dian)(dian)磁(ci)感應原理(li)將電(dian)(dian)能轉(zhuan)化成(cheng)熱(re)(re)能的(de)(de)(de)(de)裝置,電(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)(re)控(kong)制器將220V,50/60HZ的(de)(de)(de)(de)交流(liu)電(dian)(dian)整流(liu)變成(cheng)直流(liu)電(dian)(dian),再將直流(liu)電(dian)(dian)轉(zhuan)成(cheng)頻(pin)率為20-40KHZ的(de)(de)(de)(de)高(gao)頻(pin)高(gao)壓電(dian)(dian),或者是380v 50/60HZ的(de)(de)(de)(de)三相(xiang)交流(liu)電(dian)(dian)轉(zhuan)換(huan)成(cheng)直流(liu)電(dian)(dian)再將直流(liu)電(dian)(dian)轉(zhuan)換(huan)成(cheng)10~30KHZ的(de)(de)(de)(de)高(gao)頻(pin)低(di)壓大(da)電(dian)(dian)流(liu)電(dian)(dian),用來工業產品加(jia)(jia)(jia)熱(re)(re)。
2、電(dian)(dian)磁加(jia)(jia)(jia)熱(re)(re)圈:高(gao)速變化(hua)(hua)的高(gao)頻高(gao)壓電(dian)(dian)流(liu)流(liu)過線圈會(hui)產生高(gao)速變化(hua)(hua)的交變磁場,當(dang)用含鐵(tie)質(zhi)容(rong)器(qi)放(fang)置上面時,容(rong)器(qi)表面即具(ju)切(qie)割(ge)交變磁力線而(er)(er)在容(rong)器(qi)底部(bu)金屬部(bu)分產生交變的電(dian)(dian)流(liu)(即渦(wo)流(liu)),渦(wo)流(liu)使容(rong)器(qi)底部(bu)的載(zai)流(liu)子(zi)高(gao)速無規則(ze)運動,載(zai)流(liu)子(zi)互(hu)相碰撞(zhuang)、摩擦而(er)(er)產生熱(re)(re)能。從(cong)而(er)(er)起(qi)到加(jia)(jia)(jia)熱(re)(re)物(wu)品的效(xiao)果。即是通(tong)過把電(dian)(dian)能轉化(hua)(hua)為磁能,使被加(jia)(jia)(jia)熱(re)(re)鋼(gang)體表面產生感應渦(wo)流(liu)種加(jia)(jia)(jia)熱(re)(re)方式(shi)(shi)。這種方式(shi)(shi)從(cong)根本上解決(jue)了電(dian)(dian)熱(re)(re)片(pian)、電(dian)(dian)熱(re)(re)圈等電(dian)(dian)阻式(shi)(shi)的,通(tong)過熱(re)(re)傳導方式(shi)(shi)加(jia)(jia)(jia)熱(re)(re)產生的熱(re)(re)效(xiao)率低下的問題。
電磁加(jia)熱器的(de)使用壽命卻和以下幾個點(dian)有著密不可分的(de)關系:
1、產(chan)品定要保證產(chan)品正確的(de)(de)(de)安裝(zhuang)。每款電(dian)磁(ci)加熱器(qi)及(ji)電(dian)磁(ci)加熱圈(quan)所要求的(de)(de)(de)保溫棉的(de)(de)(de)厚道(dao),繞線的(de)(de)(de)粗細(xi)長度,電(dian)感值,輸(shu)入電(dian)流(liu)值都是(shi)不(bu)同的(de)(de)(de),要嚴格(ge)按照(zhao)廠家出(chu)廠時安裝(zhuang)說明(ming)書為標準(zhun)。
2、使(shi)用壽命與(yu)環(huan)境(jing)分不開關系,諸如粉塵,灰塵,潮濕度等(deng)等(deng)因素(su)。如果空(kong)氣中的(de)粉塵灰塵超過定比(bi)例,就會對電磁(ci)加(jia)(jia)熱控(kong)制主板造成較大的(de)影響。使(shi)用者需(xu)要定期專(zhuan)門企業(ye)清理維護電磁(ci)加(jia)(jia)熱器,室內的(de)通風要好,良好的(de)環(huan)境(jing)會大幅提升電磁(ci)加(jia)(jia)熱器的(de)壽命。
3、不(bu)得(de)不(bu)說(shuo)的(de)是(shi),使用(yong)壽(shou)命與產(chan)(chan)品(pin)的(de)質(zhi)量也分不(bu)開。機器所采用(yong)的(de)原器件,電路板設計合理與否會導致終的(de)產(chan)(chan)品(pin)質(zhi)量會有很大(da)出(chu)入,如何選擇(ze)專業的(de)電磁加熱器品(pin)是(shi)重中之重。
4、使用壽命與對產品的(de)愛護程度(du)關系也(ye)密不(bu)可分。個被好好愛護使用的(de)機(ji)器對要比個從(cong)不(bu)愛護保養的(de)機(ji)器壽命要長。
電磁加熱器的(de)(de)全橋和半(ban)橋的(de)(de)工作(zuo)原理的(de)(de)同(tong)異:
、相(xiang)同(tong):均(jun)是通過(guo)系列電(dian)路處(chu)理技術將普通交(jiao)流(liu)(liu)電(dian)(220V、380V)轉化成高(gao)頻直流(liu)(liu)電(dian)流(liu)(liu),通過(guo)做功線盤產生(sheng)(sheng)強烈(lie)(lie)電(dian)渦流(liu)(liu),并(bing)與相(xiang)應專用(yong)金(jin)屬(shu)材質(zhi)感應產生(sheng)(sheng)激烈(lie)(lie)電(dian)磁(ci)場(chang),直接促使相(xiang)應金(jin)屬(shu)材質(zhi)內部原(yuan)子速激蕩碰撞(zhuang),從而使得相(xiang)應金(jin)屬(shu)材質(zhi)自身快速發熱產生(sheng)(sheng)高(gao)溫,普遍用(yong)于工(gong)業(ye)塑膠機(ji)械(xie)料筒上加熱,如拉絲機(ji)、吹(chui)膜機(ji),造(zao)粒機(ji),注塑機(ji),擠出機(ji)等等!
二、不同對交流(liu)電的承接轉(zhuan)化處(chu)理技術上(shang):
1、全橋:采(cai)用(yong)雙(shuang)路驅動技(ji)術(shu),利(li)用(yong)雙(shuang)IGBT逆變(bian)模塊分(fen)別承接(jie)轉化交流(liu)電(dian)的上(shang)玄波和下(xia)玄波電(dian)流(liu),產生的高頻(pin)電(dian)流(liu)波形完整、清晰、穩定。
2、半橋:采用單(dan)路(lu)驅動技術(shu),利用單(dan)IGBT逆變模(mo)塊分別承接(jie)轉化交流(liu)電的(de)(de)上玄波,結合相(xiang)應附加電路(lu)配(pei)置吸收下玄波電流(liu)進行放電補充,產生的(de)(de)高(gao)頻電流(liu)波形相(xiang)對完整。
三(san)、對相應專用鍋具的負載(zai)感應上:
1、全橋:因電(dian)(dian)流轉(zhuan)化技(ji)術配置效率(lv)高,可負載較高電(dian)(dian)感負荷,電(dian)(dian)轉(zhuan)熱效率(lv)相應(ying)較高。
2、半橋:因電(dian)(dian)流轉(zhuan)化技術(shu)配置效率稍低(di),可負(fu)載較低(di)電(dian)(dian)感負(fu)荷(he),電(dian)(dian)轉(zhuan)熱效率相應(ying)較低(di)。
電(dian)磁加熱調節溫度控制方式:
1、臺(tai)電(dian)磁加熱器控制段(duan)溫度。
2、多(duo)臺電磁加熱器(qi)(qi)用個(ge)溫控器(qi)(qi)開(kai)關控制。
3、繼電器控制。
4、如果加(jia)熱水(shui)的話還(huan)可以用(yong)流速控制溫度。
5、分時間控制。
電磁加熱(re)器操作(zuo)步驟簡介:
1、顯(xian)示界面:手動操作的情(qing)況(kuang):啟(qi)動時(shi)(shi):先啟(qi)動水泵,再(zai)(zai)啟(qi)動加熱;停(ting)止時(shi)(shi):停(ting)止加熱,再(zai)(zai)停(ting)止水泵。
2、操作(zuo)畫面:自動(dong)和手動(dong)兩(liang)個模式(shi),可以根據實(shi)際(ji)情況(kuang)切換;6個溫度區可以根據實(shi)際(ji)情況(kuang)設(she)定溫度。當前值(zhi)為(wei)傳感(gan)器側出(chu)的實(shi)時值(zhi)。
3、運行(xing)設(she)置:此(ci)(ci)界面是(shi)在自動模式下(xia)的工作狀態(tai)。每(mei)(mei)周7天(tian),每(mei)(mei)天(tian)4個時(shi)間段,根據實(shi)際情(qing)況設(she)定(設(she)置此(ci)(ci)界面,運行(xing)界面需調為手動模式)。
4、電磁加熱(re)器:該(gai)界(jie)面可“運(yun)行”和“停止”電磁加熱(re)器,同(tong)(tong)時可以觀(guan)察(cha)加熱(re)器的(de)(de)實時參數(shu)6曲線。該(gai)界(jie)面主要觀(guan)察(cha)6個溫度的(de)(de)曲線圖,同(tong)(tong)時也可以插上U盤導出各個溫度段(duan)的(de)(de)參數(shu),放于電腦上打印或是觀(guan)看。
5、儀(yi)表(biao)配置(zhi):主要是觀(guan)看(kan)本屏的(de)些數據,未經設備廠(chang)的(de)協助(zhu)下(xia)不可隨意更改參數。
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