熱風(feng)循環烘箱一般有(you)(you)加(jia)熱(re)(re)(re)管，有(you)(you)循(xun)環(huan)風(feng)機的(de)(de)烘(hong)(hong)(hong)箱(xiang)(xiang)都可稱(cheng)為熱(re)(re)(re)風(feng)循(xun)環(huan)烘(hong)(hong)(hong)箱(xiang)(xiang)，因為不管烘(hong)(hong)(hong)箱(xiang)(xiang)什么結構(gou)，風(feng)向水平還是(shi)垂直，歸根(gen)到底都是(shi)熱(re)(re)(re)風(feng)在(zai)里面循(xun)環(huan)，所(suo)以都可通(tong)稱(cheng)為熱(re)(re)(re)風(feng)循(xun)環(huan)烘(hong)(hong)(hong)箱(xiang)(xiang)，如電熱(re)(re)(re)鼓風(feng)烘(hong)(hong)(hong)箱(xiang)(xiang)，對(dui)開(kai)門(men)(men)(men)高(gao)溫(wen)滅(mie)菌(jun)烘(hong)(hong)(hong)箱(xiang)(xiang)等(deng)。但(dan)是(shi)一般行業中所(suo)稱(cheng)熱(re)(re)(re)風(feng)循(xun)環(huan)烘(hong)(hong)(hong)箱(xiang)(xiang)大多數還是(shi)特(te)指如上圖(tu)所(suo)示的(de)(de)烘(hong)(hong)(hong)箱(xiang)(xiang)，其它烘(hong)(hong)(hong)箱(xiang)(xiang)都是(shi)由上圖(tu)烘(hong)(hong)(hong)箱(xiang)(xiang)演變而來(lai)，比如有(you)(you)了高(gao)溫(wen)滅(mie)菌(jun)的(de)(de)要求，風(feng)機改成風(feng)冷規范化的(de)(de)環(huan)風(feng)機，前(qian)后開(kai)門(men)(men)(men)，風(feng)道也作出了改變，就(jiu)變成對(dui)開(kai)門(men)(men)(men)高(gao)溫(wen)滅(mie)菌(jun)烘(hong)(hong)(hong)箱(xiang)(xiang)。上圖(tu)所(suo)示熱(re)(re)(re)風(feng)循(xun)環(huan)分為五(wu)種標準型(xing)號(hao)。分別是(shi)單門(men)(men)(men)單車，兩(liang)門(men)(men)(men)兩(liang)車，兩(liang)門(men)(men)(men)四車，三門(men)(men)(men)六(liu)車，四門(men)(men)(men)八(ba)車。

熱風(feng)循(xun)(xun)環(huan)(huan)烘(hong)箱空氣循(xun)(xun)環(huan)(huan)系統采用(yong)(yong)風(feng)機循(xun)(xun)環(huan)(huan)送風(feng)方式(shi)，風(feng)循(xun)(xun)環(huan)(huan)均勻高效。風(feng)源由(you)循(xun)(xun)環(huan)(huan)送風(feng)電機（采用(yong)(yong)無觸點開關）帶動(dong)風(feng)輪經由(you)加熱器，而將熱風(feng)送出(chu)，再(zai)經由(you)風(feng)道至烘(hong)箱內(nei)室，再(zai)將使用(yong)(yong)后的空氣吸入風(feng)道成為風(feng)源再(zai)度循(xun)(xun)環(huan)(huan)，加熱使用(yong)(yong)。確保室內(nei)溫度均勻性(xing)。當因開關門動(dong)作引起溫度值(zhi)發生(sheng)擺動(dong)時，送風(feng)循(xun)(xun)環(huan)(huan)系統迅速(su)恢復操作狀態，直(zhi)至達(da)到設定溫度值(zhi)。

熱風循環烘箱(xiang)用于醫藥(yao)、化(hua)工、食(shi)品、農副產(chan)(chan)品、水(shui)產(chan)(chan)品、輕(qing)工等行業(ye)物料(liao)的加熱固化(hua)、干燥脫水(shui)。如原(yuan)料(liao)、中藥(yao)飲片、浸膏、粉劑、顆粒、脫(tuo)水蔬菜(cai)等。

熱風烤(kao)箱適用于(yu)烘(hong)(hong)烤(kao)有化(hua)學(xue)性氣(qi)體(ti)及(ji)食(shi)品(pin)加(jia)工待烘(hong)(hong)烤(kao)物(wu)品(pin)，油墨的(de)固化(hua)、漆膜的(de)烘(hong)(hong)干(gan)(gan)等，廣泛使用于(yu)電(dian)(dian)子、電(dian)(dian)機、通訊、電(dian)(dian)鍍、塑料、五金化(hua)工、儀器、印刷、制藥(yao)、PC板、粉(fen)體(ti)、含浸(jin)、噴涂、玻璃(li)、木器建材等等的(de)精密烘(hong)(hong)烤(kao)、烘(hong)(hong)干(gan)(gan)、回火、預熱、定型(xing)、加(jia)工等；內熱循(xun)環，烘(hong)(hong)烤(kao)物(wu)件受熱均(jun)勻。