熱re風feng幹gan燥zao是shi空kong氣qi導dao熱re為wei主zhu,傳chuan熱re較jiao快kuai,葉ye溫wen上shang升sheng較jiao炒chao幹gan緩huan和he。幹gan燥zao過guo程cheng中zhong,熱re風feng是shi傳chuan熱re和he傳chuan質zhi的de主zhu要yao媒mei體ti。使shi大da量liang被bei幹gan燥zao的de物wu料liao在zai幹gan燥zao全quan過guo程cheng中zhong按an需xu要yao和he具ju有you適shi宜yi溫wen度du、濕shi度du和he流liu速su的de均jun勻yun的de熱re風feng接jie觸chu,來lai滿man足zu幹gan燥zao曲qu線xian的de要yao求qiu,使shi幹gan燥zao全quan過guo程cheng中zhong熱re交jiao換huan和he濕shi交jiao換huan均jun勻yun協xie調tiao地di進jin行xing。幹gan燥zao過guo程cheng中zhong熱re風feng的de溫wen度du和he濕shi度du是shi決jue定ding幹gan燥zao效xiao果guo的de兩liang大da要yao素su。
紅外幹燥是以輻射的形式進行傳熱,紅外線烘幹機製花幹燥上選用的紅外線約在4-100μm範圍,所以稱為遠紅外幹燥。茶葉吸收紅外線後,引起內部分子發生振動,分子間的快速碰撞、摩擦迅速轉變為熱能,使茶葉內外均勻得到加熱,但紅外線的穿透能力較差。
微wei波bo幹gan燥zao的de原yuan理li是shi微wei波bo發fa生sheng器qi將jiang微wei波bo輻fu射she到dao幹gan燥zao的de茶cha葉ye上shang,誘you使shi茶cha葉ye水shui等deng極ji性xing分fen子zi隨sui微wei波bo的de頻pin率lv作zuo用yong同tong步bu高gao速su旋xuan轉zhuan,使shi茶cha葉ye瞬shun時shi產chan生sheng摩mo擦ca熱re,導dao致zhi茶cha葉ye表biao麵mian和he內nei部bu同tong時shi升sheng溫wen,使shi大da量liang的de水shui分fen子zi從cong茶cha葉ye中zhong溢yi出chu而er被bei蒸zheng發fa,達da到dao幹gan燥zao茶cha葉ye的de效xiao果guo。
熱re泵beng除chu濕shi烘hong幹gan采cai用yong組zu合he幹gan燥zao方fang式shi,在zai茶cha葉ye的de不bu同tong幹gan燥zao階jie段duan,采cai用yong不bu同tong的de幹gan燥zao參can數shu和he幹gan燥zao方fang式shi,可ke以yi實shi現xian對dui於yu幹gan燥zao過guo程cheng的de優you化hua控kong製zhi。對dui茶cha葉ye的de幹gan燥zao過guo程cheng進jin行xing智zhi能neng控kong製zhi,通tong過guo建jian立li一yi套tao準zhun確que較jiao高gao,適shi用yong性xing好hao,可ke操cao作zuo性xing強qiang的de控kong製zhi模mo型xing,提ti高gao了le幹gan燥zao的de生sheng產chan效xiao率lv,對dui茶cha葉ye含han水shui量liang的de自zi動dong控kong製zhi,能neng夠gou大da大da改gai善shan茶cha葉ye品pin質zhi和he實shi現xian幹gan燥zao過guo程cheng的de節jie能neng。
作為最新型的熱泵除濕烘幹方式,目前已廣泛應用於海產品、蔬菜脫水、瓜子、花生、果蔬、肉製品、腸衣、煙葉、皮革、香菇、枸杞、幹果、蚊香、貢香、布料、衣物、糧食穀物、掛麵、腐竹、肥料、藥品、中藥材、紙品、木材、種子等行業。
九(jiu)恒(heng),作(zuo)為(wei)國(guo)內(nei)一(yi)流(liu)的(de)綠(lv)色(se)熱(re)能(neng)解(jie)決(jue)方(fang)案(an)綜(zong)合(he)服(fu)務(wu)商(shang)和(he)國(guo)家(jia)高(gao)新(xin)技(ji)術(shu)企(qi)業(ye),所(suo)生(sheng)產(chan)的(de)熱(re)泵(beng)烘(hong)幹(gan)機(ji)廣(guang)泛(fan)應(ying)用(yong)於(yu)農(nong)業(ye)諸(zhu)多(duo)領(ling)域(yu),九(jiu)恒(heng)將(jiang)繼(ji)續(xu)專(zhuan)注(zhu)於(yu)高(gao)效(xiao)熱(re)泵(beng)技(ji)術(shu)的(de)研(yan)發(fa)和(he)綠(lv)色(se)熱(re)能(neng)技(ji)術(shu)推(tui)廣(guang),為(wei)廣(guang)大(da)用(yong)戶(hu)提(ti)供(gong)更(geng)好(hao)的(de)產(chan)品(pin)和(he)技(ji)術(shu)服(fu)務(wu)。
金(jin)屬(shu)傳(chuan)導(dao)幹(gan)燥(zao),熱(re)量(liang)主(zhu)要(yao)由(you)鐵(tie)鍋(guo)傳(chuan)導(dao),傳(chuan)熱(re)較(jiao)快(kuai),由(you)於(yu)不(bu)斷(duan)翻(fan)炒(chao),葉(ye)子(zi)動(dong)態(tai)著(zhe)熱(re),葉(ye)溫(wen)間(jian)斷(duan)變(bian)化(hua)而(er)不(bu)穩(wen)定(ding)。接(jie)觸(chu)鍋(guo)麵(mian)時(shi)葉(ye)溫(wen)高(gao),拋(pao)散(san)開(kai)時(shi)葉(ye)溫(wen)低(di),而(er)且(qie)是(shi)局(ju)部(bu)受(shou)熱(re),造(zao)成(cheng)受(shou)熱(re)不(bu)均(jun)勻(yun),化(hua)學(xue)成(cheng)分(fen)轉(zhuan)化(hua)不(bu)充(chong)分(fen),苦(ku)味(wei)的(de)花(hua)青(qing)素(su)也(ye)不(bu)能(neng)得(de)以(yi)適(shi)量(liang)轉(zhuan)化(hua);再則受熱強弱不勻,因而烘幹的味尚濃帶苦,不夠醇。
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