熱(re)(re)風(feng)(feng)(feng)(feng)循環(huan)(huan)(huan)(huan)烘(hong)箱(xiang)空(kong)氣(qi)循環(huan)(huan)(huan)(huan)系統(tong)采用(yong)(yong)風(feng)(feng)(feng)(feng)機循環(huan)(huan)(huan)(huan)送(song)風(feng)(feng)(feng)(feng)方式(shi)，基本(ben)分水(shui)平循環(huan)(huan)(huan)(huan)送(song)風(feng)(feng)(feng)(feng)及強(qiang)壓(ya)式(shi)循環(huan)(huan)(huan)(huan)送(song)風(feng)(feng)(feng)(feng)兩種，熱(re)(re)風(feng)(feng)(feng)(feng)循環(huan)(huan)(huan)(huan)均勻(yun)(yun)高效。風(feng)(feng)(feng)(feng)源由(you)(you)循環(huan)(huan)(huan)(huan)送(song)風(feng)(feng)(feng)(feng)電機帶(dai)動(dong)風(feng)(feng)(feng)(feng)輪經由(you)(you)加熱(re)(re)器，而(er)將(jiang)熱(re)(re)風(feng)(feng)(feng)(feng)送(song)出，再經由(you)(you)風(feng)(feng)(feng)(feng)道至烘(hong)箱(xiang)工作(zuo)室內，再將(jiang)使(shi)用(yong)(yong)后的空(kong)氣(qi)吸(xi)入風(feng)(feng)(feng)(feng)道成(cheng)為風(feng)(feng)(feng)(feng)源再度(du)循環(huan)(huan)(huan)(huan)，加熱(re)(re)使(shi)用(yong)(yong)。確保室內溫(wen)(wen)度(du)均勻(yun)(yun)性。當因開關(guan)門動(dong)作(zuo)引(yin)起溫(wen)(wen)度(du)值(zhi)發生擺動(dong)時，送(song)風(feng)(feng)(feng)(feng)循環(huan)(huan)(huan)(huan)系統(tong)迅速恢復操作(zuo)狀態，直(zhi)至達到設定溫(wen)(wen)度(du)值(zhi)。該型熱(re)(re)風(feng)(feng)(feng)(feng)循環(huan)(huan)(huan)(huan)烘(hong)箱(xiang)熱(re)(re)使(shi)用(yong)(yong)效率高，能耗較(jiao)小，溫(wen)(wen)度(du)使(shi)用(yong)(yong)更均勻(yun)(yun)。