鹽水制(zhi)(zhi)冰是應用較(jiao)廣泛(fan)、歷史悠久的(de)一種(zhong)間接冷卻制(zhi)(zhi)冰方法。制(zhi)(zhi)出的(de)冰堅實、不易融化,便于貯藏和搬(ban)運,在國內(nei)漁業、食品業、運輸業及醫療機(ji)構等行業中使用的(de)比(bi)較(jiao)普遍。下面(mian)給大家介紹關于鹽水制(zhi)(zhi)冰機(ji)的(de)制(zhi)(zhi)冰流程有哪些?以及溫(wen)度如何測(ce)定(ding)?的(de)內(nei)容,歡迎大家閱(yue)讀!
鹽水制冰機的制冰流程:
鹽(yan)(yan)水(shui)(shui)(shui)制(zhi)(zhi)(zhi)冰(bing)(bing)(bing)是一種間接冷(leng)(leng)卻(que)(que)(que)系統(tong)(tong)。在(zai)傳統(tong)(tong)的(de)(de)(de)咸水(shui)(shui)(shui)制(zhi)(zhi)(zhi)冰(bing)(bing)(bing)池(chi)(chi)(chi)(chi)中,蒸發器(qi)鹽(yan)(yan)水(shui)(shui)(shui)池(chi)(chi)(chi)(chi)和鹽(yan)(yan)水(shui)(shui)(shui)制(zhi)(zhi)(zhi)冰(bing)(bing)(bing)池(chi)(chi)(chi)(chi)組(zu)(zu)合(he)成一個(ge)制(zhi)(zhi)(zhi)冰(bing)(bing)(bing)池(chi)(chi)(chi)(chi),由隔(ge)板隔(ge)開。在(zai)鹽(yan)(yan)水(shui)(shui)(shui)在(zai)蒸發器(qi)鹽(yan)(yan)水(shui)(shui)(shui)池(chi)(chi)(chi)(chi)中冷(leng)(leng)卻(que)(que)(que)后(hou),它在(zai)攪拌器(qi)的(de)(de)(de)作用下進入(ru)制(zhi)(zhi)(zhi)冰(bing)(bing)(bing)鹽(yan)(yan)水(shui)(shui)(shui)池(chi)(chi)(chi)(chi)以冷(leng)(leng)卻(que)(que)(que)冰(bing)(bing)(bing)桶。在(zai)溫度升高之后(hou),鹽(yan)(yan)水(shui)(shui)(shui)從另一側流(liu)入(ru)蒸發器(qi)鹽(yan)(yan)水(shui)(shui)(shui)池(chi)(chi)(chi)(chi)以進一步冷(leng)(leng)卻(que)(que)(que)。在(zai)鹽(yan)(yan)水(shui)(shui)(shui)制(zhi)(zhi)(zhi)冰(bing)(bing)(bing)設備中,蒸發器(qi)中制(zhi)(zhi)(zhi)冷(leng)(leng)劑的(de)(de)(de)熱量吸收鹽(yan)(yan)水(shui)(shui)(shui),保持(chi)鹽(yan)(yan)水(shui)(shui)(shui)冷(leng)(leng)卻(que)(que)(que)在(zai)-10~14℃左(zuo)右。當冰(bing)(bing)(bing)桶中的(de)(de)(de)水(shui)(shui)(shui)被凍結時,冰(bing)(bing)(bing)桶組(zu)(zu)將由起重(zhong)機(ji)連(lian)續地從制(zhi)(zhi)(zhi)冰(bing)(bing)(bing)罐中提起并(bing)放入(ru)冰(bing)(bing)(bing)融化罐中以融化冰(bing)(bing)(bing),然后(hou)將冰(bing)(bing)(bing)架用于脫水(shui)(shui)(shui),并(bing)且冰(bing)(bing)(bing)將被儲存(cun)或直接通過滑行路(lu)徑運輸到冰(bing)(bing)(bing)儲存(cun)器(qi)中。脫水(shui)(shui)(shui)后(hou),將空冰(bing)(bing)(bing)桶裝(zhuang)滿(man)水(shui)(shui)(shui),然后(hou)放入(ru)制(zhi)(zhi)(zhi)冰(bing)(bing)(bing)罐中繼續生產,等(deng)等(deng)。

鹽水制冰機的溫度的測定:
1)鹽水溫度(du)t1 t1直接影響(xiang)冷(leng)(leng)凍(dong)速(su)度(du)和冰塊質量(liang)。 T1降(jiang)低,冷(leng)(leng)凍(dong)速(su)度(du)增(zeng)加(jia),但蒸發(fa)溫度(du)要求降(jiang)低,因(yin)此制(zhi)冷(leng)(leng)系數降(jiang)低。 T1增(zeng)加(jia),這不利于鹽水和冰桶之間的(de)熱傳遞,并減(jian)慢冷(leng)(leng)凍(dong)速(su)度(du)。一般(ban)t1-10℃。
2)鹽水(shui)溫度與(yu)蒸(zheng)發溫度t2之間的(de)溫差較大(da),可加(jia)(jia)速(su)鹽水(shui)與(yu)制冷(leng)劑之間的(de)傳熱,有(you)利于鹽水(shui)的(de)冷(leng)卻,但隨著t2的(de)增(zeng)加(jia)(jia),蒸(zheng)發溫度降低(di)將需(xu)要,這將導致壓縮機的(de)單位功耗增(zeng)加(jia)(jia)。因(yin)此,蒸(zheng)發溫度與(yu)鹽水(shui)溫差在(zai)5℃之間。
3)鹽(yan)(yan)水的(de)(de)凝(ning)固溫(wen)(wen)度(du)必須確保(bao)它不會在低溫(wen)(wen)下凍結,以保(bao)持鹽(yan)(yan)水在制冰池中循環(huan)。如果鹽(yan)(yan)水的(de)(de)冷(leng)凍溫(wen)(wen)度(du)接(jie)近蒸發溫(wen)(wen)度(du),則鹽(yan)(yan)水有凍結的(de)(de)風(feng)險。但是,如果要求(qiu)鹽(yan)(yan)水的(de)(de)凝(ning)固溫(wen)(wen)度(du)太低,則由于鹽(yan)(yan)水濃(nong)度(du)的(de)(de)增(zeng)加,攪拌器的(de)(de)功率消耗將增(zeng)加。因此(ci),鹽(yan)(yan)水冷(leng)凍溫(wen)(wen)度(du)比蒸發溫(wen)(wen)度(du)低6~8℃。
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