作(zuo)者:中輝電器 來(lai)源(yuan):www.shenzhentuliao.cn 發布時(shi)間:2019/4/30 11:55:39
電磁加熱器應用范圍:
1、塑(su)(su)料橡膠行(xing)業,如(ru):塑(su)(su)料用吹膜機、拉絲機、注(zhu)塑(su)(su)機,造粒機,橡膠用擠出機、硫化機、電纜(lan)生產(chan)擠出機等(deng)。
2、醫藥化(hua)(hua)工行業,如:醫藥專用輸液袋、塑料器材(cai)生產線,化(hua)(hua)工行業液體加熱輸送管道(dao)等等。
3、能源、食品行(xing)業,如:原油輸送(song)管道的(de)加(jia)(jia)熱(re);食品機(ji)械,如:超貨機(ji)等需要電(dian)加(jia)(jia)熱(re)的(de)設備。
4、大功率商用電(dian)磁灶機(ji)芯。
5、建(jian)材行業,如:燃(ran)氣管生產線、塑(su)料管材生產線、PE塑(su)料硬質平網、土工網機(ji)(ji)(ji)組(zu)、自動(dong)中空成型機(ji)(ji)(ji)、PE蜂窩板生產線、單(dan)雙(shuang)壁波紋管擠(ji)出(chu)生產線、復合氣墊膜機(ji)(ji)(ji)組(zu)、PVC硬管、芯層發泡(pao)管生產線、PP擠(ji)出(chu)透明片(pian)材生產線、擠(ji)出(chu)聚(ju)苯乙(yi)烯發泡(pao)管材、PE纏繞膜機(ji)(ji)(ji)組(zu)。
6、印刷設備里的干(gan)燥加熱。
7、其它類似行(xing)業加熱。
下(xia)電(dian)磁加熱器耗(hao)電(dian)與什么有關:
1、電磁(ci)加熱(re)器在工作中會(hui)直加熱(re)到設置的(de)溫(wen)度(du),當溫(wen)度(du)沒達到設置的(de)溫(wen)度(du)時,電磁(ci)加熱(re)器就會(hui)直加熱(re),當達到了預設的(de)溫(wen)度(du)以后電磁(ci)加熱(re)器就停(ting)止加熱(re)了,也就不再耗電了。
2、電(dian)(dian)磁加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)器(qi)每個(ge)小時的(de)耗電(dian)(dian)量多少與電(dian)(dian)磁加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)器(qi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)的(de)時間長短(duan)有關。電(dian)(dian)磁加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)器(qi)剛工作是(shi)滿功(gong)率,加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)溫(wen)度到溫(wen)度以后(hou)(hou)會停止然后(hou)(hou)再加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)。總體上(shang)來(lai)說,電(dian)(dian)磁加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)器(qi)耗電(dian)(dian)量是(shi)很小的(de),因為電(dian)(dian)磁加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)器(qi)不是(shi)直(zhi)(zhi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)工作的(de),而(er)是(shi)有間隙的(de)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)的(de),達(da)到溫(wen)度后(hou)(hou)就停止加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re),之后(hou)(hou)就開(kai)始保(bao)溫(wen)工作,直(zhi)(zhi)到溫(wen)度沒達(da)到預設的(de)溫(wen)度后(hou)(hou)再加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)下(xia),整體上(shang)來(lai)講,電(dian)(dian)磁加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)器(qi)并不是(shi)直(zhi)(zhi)加(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)耗電(dian)(dian)的(de),這也是(shi)它比較(jiao)省電(dian)(dian)的(de)個(ge)原因。
3、料筒上還包有層(ceng)保(bao)(bao)溫(wen)棉也能(neng)起到保(bao)(bao)溫(wen)和隔熱的效果,那(nei)么(me)熱量(liang)(liang)就不會(hui)損失掉(diao)了(le)(le),那(nei)么(me)能(neng)夠(gou)持續恒溫(wen)加熱的時間就越長了(le)(le)。耗電量(liang)(liang)也就越小了(le)(le)。
電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱器(qi)(qi)(qi)(qi)工作(zuo)原理(li):電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱是利用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)感應原理(li)將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)轉換(huan)(huan)(huan)為(wei)(wei)熱能(neng)(neng)(neng)的(de)(de)能(neng)(neng)(neng)量轉換(huan)(huan)(huan)過(guo)程,由(you)整(zheng)(zheng)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)將(jiang)50/60Hz的(de)(de)交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)轉變(bian)成直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),再(zai)經過(guo)功率控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)將(jiang)直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)轉換(huan)(huan)(huan)成頻(pin)率為(wei)(wei)20~40kHz的(de)(de)高頻(pin)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),當高速變(bian)化的(de)(de)交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)流(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)磁(ci)(ci)(ci)場,磁(ci)(ci)(ci)場內(nei)的(de)(de)交變(bian)磁(ci)(ci)(ci)力(li)線(xian)通過(guo)金屬管(guan)道(dao)時(導磁(ci)(ci)(ci)、導電(dian)(dian)(dian)(dian)(dian)(dian)材(cai)料),管(guan)壁體內(nei)產生(sheng)無數的(de)(de)小渦(wo)流(liu)(liu)(liu),使輸油(you)(you)管(guan)道(dao)的(de)(de)管(guan)壁本(ben)身自行發熱與原油(you)(you)進行熱交換(huan)(huan)(huan),達到加(jia)(jia)熱原油(you)(you)的(de)(de)目的(de)(de)。變(bian)頻(pin)器(qi)(qi)(qi)(qi)是高頻(pin)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱器(qi)(qi)(qi)(qi)的(de)(de)核(he)心部(bu)(bu)件(jian)(jian),是利用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)半(ban)導體器(qi)(qi)(qi)(qi)件(jian)(jian)的(de)(de)通斷作(zuo)用(yong)將(jiang)工頻(pin)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)變(bian)換(huan)(huan)(huan)為(wei)(wei)另頻(pin)率的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)控制(zhi)裝置(zhi)。目前使用(yong)的(de)(de)變(bian)頻(pin)器(qi)(qi)(qi)(qi)主要采(cai)用(yong)交流(liu)(liu)(liu)—直流(liu)(liu)(liu)—交流(liu)(liu)(liu)方式,先把工頻(pin)交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)通過(guo)整(zheng)(zheng)流(liu)(liu)(liu)器(qi)(qi)(qi)(qi)轉換(huan)(huan)(huan)成直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan),然后再(zai)把直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)轉換(huan)(huan)(huan)成頻(pin)率、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)均可(ke)控制(zhi)的(de)(de)交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)供(gong)給電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機。變(bian)頻(pin)器(qi)(qi)(qi)(qi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)般(ban)由(you)整(zheng)(zheng)流(liu)(liu)(liu)、中(zhong)間直流(liu)(liu)(liu)環(huan)節(jie)、逆變(bian)和(he)控制(zhi)4個部(bu)(bu)分組(zu)成。整(zheng)(zheng)流(liu)(liu)(liu)部(bu)(bu)分為(wei)(wei)三(san)相橋式不可(ke)控整(zheng)(zheng)流(liu)(liu)(liu)器(qi)(qi)(qi)(qi),逆變(bian)部(bu)(bu)分為(wei)(wei)IGBT三(san)相橋式逆變(bian)器(qi)(qi)(qi)(qi)且輸出為(wei)(wei)PWM波形,中(zhong)間直流(liu)(liu)(liu)環(huan)節(jie)為(wei)(wei)濾波、直流(liu)(liu)(liu)儲能(neng)(neng)(neng)和(he)緩沖無功功率。
電磁加(jia)熱器的(de)(de)全橋(qiao)和(he)半(ban)橋(qiao)的(de)(de)工作原理(li)的(de)(de)同異:
、相同(tong):均是通(tong)過系列電路處(chu)理技術(shu)將普通(tong)交流電(220V、380V)轉(zhuan)化成高頻直(zhi)流電流,通(tong)過做功(gong)線盤產生強烈(lie)(lie)電渦(wo)流,并與相應專(zhuan)用金(jin)屬(shu)材質(zhi)感(gan)應產生激烈(lie)(lie)電磁場,直(zhi)接促(cu)使相應金(jin)屬(shu)材質(zhi)內部原子速激蕩碰撞,從而使得相應金(jin)屬(shu)材質(zhi)自身快速發熱(re)產生高溫,普遍(bian)用于工(gong)業塑膠機(ji)械料(liao)筒(tong)上(shang)加熱(re),如拉絲機(ji)、吹膜機(ji),造粒(li)機(ji),注塑機(ji),擠出機(ji)等等!
二、不(bu)同對交(jiao)流電(dian)的承接(jie)轉化處理技術上(shang):
1、全橋:采用雙路驅動技術,利用雙IGBT逆變模塊分別承接轉化交流電的(de)上玄(xuan)波和(he)下玄(xuan)波電流,產生的(de)高頻電流波形完整(zheng)、清晰、穩(wen)定(ding)。
2、半橋:采用(yong)單路驅動技(ji)術(shu),利用(yong)單IGBT逆變模塊分別承接轉化交流電(dian)(dian)的(de)上玄(xuan)波,結合(he)相(xiang)應附加電(dian)(dian)路配置吸收下玄(xuan)波電(dian)(dian)流進(jin)行放電(dian)(dian)補充(chong),產生的(de)高(gao)頻電(dian)(dian)流波形相(xiang)對完整。
三、對相應專用鍋具的負載感(gan)應上:
1、全橋:因電流轉化技(ji)術配(pei)置(zhi)效(xiao)率高(gao),可負(fu)載較高(gao)電感負(fu)荷,電轉熱效(xiao)率相應(ying)較高(gao)。
2、半橋(qiao):因電(dian)流轉化(hua)技術配置效(xiao)(xiao)率稍低(di),可(ke)負(fu)載(zai)較(jiao)低(di)電(dian)感負(fu)荷(he),電(dian)轉熱效(xiao)(xiao)率相應較(jiao)低(di)。
電(dian)磁加(jia)熱技術原理(li):
1、電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)器(qi):電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)器(qi)是(shi)種利用(yong)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)感應原理(li)將(jiang)(jiang)電(dian)(dian)(dian)(dian)(dian)能轉(zhuan)化成熱(re)能的(de)(de)裝置(zhi),電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)(jia)熱(re)控制器(qi)將(jiang)(jiang)220V,50/60HZ的(de)(de)交流(liu)電(dian)(dian)(dian)(dian)(dian)整流(liu)變(bian)成直流(liu)電(dian)(dian)(dian)(dian)(dian),再(zai)將(jiang)(jiang)直流(liu)電(dian)(dian)(dian)(dian)(dian)轉(zhuan)成頻(pin)(pin)率為20-40KHZ的(de)(de)高頻(pin)(pin)高壓電(dian)(dian)(dian)(dian)(dian),或者是(shi)380v 50/60HZ的(de)(de)三(san)相交流(liu)電(dian)(dian)(dian)(dian)(dian)轉(zhuan)換成直流(liu)電(dian)(dian)(dian)(dian)(dian)再(zai)將(jiang)(jiang)直流(liu)電(dian)(dian)(dian)(dian)(dian)轉(zhuan)換成10~30KHZ的(de)(de)高頻(pin)(pin)低壓大電(dian)(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)(dian),用(yong)來工業(ye)產品(pin)加(jia)(jia)(jia)(jia)熱(re)。
2、電(dian)(dian)磁(ci)加(jia)(jia)熱(re)(re)(re)圈(quan):高(gao)速(su)變(bian)(bian)化的(de)高(gao)頻高(gao)壓電(dian)(dian)流(liu)流(liu)過(guo)線圈(quan)會產(chan)生(sheng)高(gao)速(su)變(bian)(bian)化的(de)交變(bian)(bian)磁(ci)場(chang),當用含(han)鐵質容(rong)器放置上(shang)面(mian)時(shi),容(rong)器表面(mian)即(ji)具(ju)切割交變(bian)(bian)磁(ci)力線而在容(rong)器底(di)部金屬部分產(chan)生(sheng)交變(bian)(bian)的(de)電(dian)(dian)流(liu)(即(ji)渦流(liu)),渦流(liu)使容(rong)器底(di)部的(de)載(zai)流(liu)子高(gao)速(su)無規(gui)則運動,載(zai)流(liu)子互相(xiang)碰(peng)撞、摩擦而產(chan)生(sheng)熱(re)(re)(re)能(neng)。從(cong)而起到加(jia)(jia)熱(re)(re)(re)物(wu)品的(de)效(xiao)果。即(ji)是通過(guo)把電(dian)(dian)能(neng)轉(zhuan)化為磁(ci)能(neng),使被加(jia)(jia)熱(re)(re)(re)鋼(gang)體表面(mian)產(chan)生(sheng)感應渦流(liu)種加(jia)(jia)熱(re)(re)(re)方式(shi)(shi)(shi)。這種方式(shi)(shi)(shi)從(cong)根本上(shang)解決(jue)了電(dian)(dian)熱(re)(re)(re)片、電(dian)(dian)熱(re)(re)(re)圈(quan)等電(dian)(dian)阻(zu)式(shi)(shi)(shi)的(de),通過(guo)熱(re)(re)(re)傳導方式(shi)(shi)(shi)加(jia)(jia)熱(re)(re)(re)產(chan)生(sheng)的(de)熱(re)(re)(re)效(xiao)率低下(xia)的(de)問題。
使用電磁加熱器時這幾點不可忽視:
1、電磁加熱器主機的安頓環境(jing)不能在(zai)-20℃以下,高也不能超過50℃,且要(yao)枯(ku)燥、通風。
2、接入電(dian)源前:清楚(chu)電(dian)器作業需(xu)要的(de)(de)(de)總(zong)電(dian)量和供電(dian)變壓(ya)器的(de)(de)(de)總(zong)容量,不能(neng)超過供電(dian)的(de)(de)(de)總(zong)容量,也盡可能(neng)不要去糟蹋。別(bie)的(de)(de)(de)要辨明單相220v、三相380v電(dian)壓(ya),不能(neng)接錯(cuo)。終要留意(yi)的(de)(de)(de)就是,當電(dian)網的(de)(de)(de)電(dian)壓(ya)在規則(ze)電(dian)壓(ya)規模的(de)(de)(de)上下10%起浮(fu)時,制止運用大(da)功率(lv)電(dian)磁加熱設備。
3、變頻電(dian)(dian)磁加熱(re)(re)器(qi)是怕水(shui)(shui)的(de)(de),因而、總(zong)歸,電(dian)(dian)磁加熱(re)(re)器(qi)不能(neng)有水(shui)(shui)進入,任何狀(zhuang)況下都要防止這狀(zhuang)況,水(shui)(shui)蒸汽(qi)、濕(shi)氣過重也不可(ke),電(dian)(dian)磁加熱(re)(re)線(xian)也相同怕水(shui)(shui),切忌(ji)用濕(shi)潤的(de)(de)手(shou)去觸摸(mo)或是在電(dian)(dian)磁加熱(re)(re)線(xian)上搭曬濕(shi)潤的(de)(de)衣物等等。
4、電磁加熱器生產廠家印(yin)刷電路板(ban)周圍不能有(you)塑(su)料、乙(yi)烯基(ji)和聚(ju)苯乙(yi)烯泡沫塑(su)料(抗靜電類型在(zai)外),靜電很可能會損壞這些電路。不要觸摸操控(kong)接(jie)口板(ban)或(huo)操控(kong)板(ban)的IC電路。
5、電磁加熱線外表是石棉原料,怕磨,因而(er)電磁加熱線應(ying)防止轟動兇(xiong)猛的(de)設備,防止磨損的(de)電磁加熱線呈現(xian)漏電現(xian)象,觸摸接地的(de)金屬物體,用手(shou)觸摸這些操(cao)控器之前消(xiao)除身體上的(de)靜電(封閉(bi)操(cao)控器的(de)電源。并且在觸摸操(cao)控器時堅持接地)。
6、任何(he)替換設備、檢修(xiu)設備環(huan)節定要斷電今后才(cai)干(gan)進(jin)行,不(bu)要用手或(huo)導體觸摸印刷電路(lu)板上的元件或(huo)導體。
7、任(ren)何替換設備、檢修設備環節定要(yao)斷(duan)電今后才(cai)干進(jin)行(xing)。
電磁(ci)加熱(re)器的全橋和半橋的投資成本與產品配(pei)置的異同:
、相(xiang)同:在普通用途(tu)上,均可(ke)全系(xi)列配置(zhi)各種(zhong)產品。
二、投(tou)資(zi)成(cheng)本上不同:
1、全橋:因其設計配置較高,無可避免生產(chan)成本較高。
2、半(ban)橋:因其設(she)計配置較(jiao)低,生產成(cheng)本較(jiao)低。
三、產品配置上:
1、全橋:成本合理和負(fu)載耐(nai)用上,配置(zhi)30KW以上產(chan)品較宜。
2、半(ban)橋(qiao):成本合理上,配置30KW以下(xia)產品較宜。
電(dian)(dian)磁加熱(re)器裝置后(hou)溫(wen)度(du)不(bu)達標處理方法,當(dang)造粒機類似大(da)(da)功(gong)率(lv)時(shi),安裝電(dian)(dian)磁加熱(re)器后(hou),溫(wen)度(du)總達不(bu)到。電(dian)(dian)磁加熱(re)器也(ye)(ye)直工作,電(dian)(dian)流也(ye)(ye)正常,但溫(wen)度(du)總上不(bu)去。般情(qing)況(kuang)是功(gong)率(lv)不(bu)夠大(da)(da)。可以加大(da)(da)實際(ji)功(gong)率(lv)來(lai)實現。要是確(que)定實際(ji)功(gong)率(lv)不(bu)小了,這是由(you)炮(pao)(pao)筒(tong)的(de)(de)(de)材料引起的(de)(de)(de),不(bu)同(tong)材質(zhi)的(de)(de)(de)在不(bu)同(tong)的(de)(de)(de)工作頻(pin)(pin)率(lv)時(shi)吸收熱(re)量也(ye)(ye)不(bu)同(tong)。應該(gai)嘗(chang)試(shi)(shi)增(zeng)加諧振電(dian)(dian)容容量,讓Q值(zhi)增(zeng)加,提高(gao)線圈(quan)高(gao)頻(pin)(pin)電(dian)(dian)流。可以使(shi)炮(pao)(pao)筒(tong)內(nei)外溫(wen)度(du)均勻(yun)來(lai)達到提高(gao)炮(pao)(pao)筒(tong)的(de)(de)(de)溫(wen)度(du)。條件允(yun)話(hua)的(de)(de)(de)話(hua),可以換掉炮(pao)(pao)筒(tong)試(shi)(shi)試(shi)(shi)。
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