鹽(yan)水(shui)制(zhi)(zhi)冰(bing)(bing)是應用較(jiao)廣泛、歷史悠久的(de)(de)(de)一種間接冷卻(que)制(zhi)(zhi)冰(bing)(bing)方法。制(zhi)(zhi)出的(de)(de)(de)冰(bing)(bing)堅實(shi)、不(bu)易(yi)融化,便于(yu)貯藏和搬運,在(zai)國內漁業(ye)(ye)、食品業(ye)(ye)、運輸(shu)業(ye)(ye)及醫療機構等(deng)行業(ye)(ye)中使用的(de)(de)(de)比(bi)較(jiao)普遍。下面給大家(jia)介紹(shao)關于(yu)鹽(yan)水(shui)制(zhi)(zhi)冰(bing)(bing)機的(de)(de)(de)制(zhi)(zhi)冰(bing)(bing)流(liu)程以(yi)及溫(wen)度如何測定?的(de)(de)(de)內容(rong),歡迎大家(jia)閱讀!
鹽水制冰機的制冰流程:
鹽水(shui)(shui)(shui)(shui)制(zhi)(zhi)冰(bing)(bing)(bing)(bing)是一(yi)種間接冷(leng)卻(que)(que)系統。在(zai)(zai)(zai)(zai)(zai)傳統的(de)咸水(shui)(shui)(shui)(shui)制(zhi)(zhi)冰(bing)(bing)(bing)(bing)池(chi)中,蒸(zheng)(zheng)發(fa)器(qi)(qi)鹽水(shui)(shui)(shui)(shui)池(chi)和鹽水(shui)(shui)(shui)(shui)制(zhi)(zhi)冰(bing)(bing)(bing)(bing)池(chi)組合成一(yi)個(ge)制(zhi)(zhi)冰(bing)(bing)(bing)(bing)池(chi),由隔(ge)板隔(ge)開。在(zai)(zai)(zai)(zai)(zai)鹽水(shui)(shui)(shui)(shui)在(zai)(zai)(zai)(zai)(zai)蒸(zheng)(zheng)發(fa)器(qi)(qi)鹽水(shui)(shui)(shui)(shui)池(chi)中冷(leng)卻(que)(que)后,它在(zai)(zai)(zai)(zai)(zai)攪拌器(qi)(qi)的(de)作用下進入(ru)制(zhi)(zhi)冰(bing)(bing)(bing)(bing)鹽水(shui)(shui)(shui)(shui)池(chi)以(yi)(yi)冷(leng)卻(que)(que)冰(bing)(bing)(bing)(bing)桶(tong)(tong)。在(zai)(zai)(zai)(zai)(zai)溫(wen)度升高(gao)之后,鹽水(shui)(shui)(shui)(shui)從另(ling)一(yi)側流入(ru)蒸(zheng)(zheng)發(fa)器(qi)(qi)鹽水(shui)(shui)(shui)(shui)池(chi)以(yi)(yi)進一(yi)步冷(leng)卻(que)(que)。在(zai)(zai)(zai)(zai)(zai)鹽水(shui)(shui)(shui)(shui)制(zhi)(zhi)冰(bing)(bing)(bing)(bing)設(she)備中,蒸(zheng)(zheng)發(fa)器(qi)(qi)中制(zhi)(zhi)冷(leng)劑(ji)的(de)熱量吸收鹽水(shui)(shui)(shui)(shui),保持鹽水(shui)(shui)(shui)(shui)冷(leng)卻(que)(que)在(zai)(zai)(zai)(zai)(zai)-10~14℃左右。當冰(bing)(bing)(bing)(bing)桶(tong)(tong)中的(de)水(shui)(shui)(shui)(shui)被(bei)凍結時(shi),冰(bing)(bing)(bing)(bing)桶(tong)(tong)組將由起重機連續地從制(zhi)(zhi)冰(bing)(bing)(bing)(bing)罐中提起并放入(ru)冰(bing)(bing)(bing)(bing)融化(hua)罐中以(yi)(yi)融化(hua)冰(bing)(bing)(bing)(bing),然(ran)后將冰(bing)(bing)(bing)(bing)架用于脫水(shui)(shui)(shui)(shui),并且(qie)冰(bing)(bing)(bing)(bing)將被(bei)儲存或直接通過滑行路徑運輸到冰(bing)(bing)(bing)(bing)儲存器(qi)(qi)中。脫水(shui)(shui)(shui)(shui)后,將空冰(bing)(bing)(bing)(bing)桶(tong)(tong)裝滿水(shui)(shui)(shui)(shui),然(ran)后放入(ru)制(zhi)(zhi)冰(bing)(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(yan)水(shui)溫度t1 t1直接影響冷(leng)凍速(su)度和(he)冰塊質量。 T1降低(di),冷(leng)凍速(su)度增加,但蒸發(fa)溫度要(yao)求降低(di),因此制冷(leng)系數降低(di)。 T1增加,這不利于鹽(yan)水(shui)和(he)冰桶之間的(de)熱(re)傳遞,并減慢冷(leng)凍速(su)度。一(yi)般(ban)t1-10℃。
2)鹽(yan)(yan)水溫度(du)與(yu)蒸(zheng)發(fa)溫度(du)t2之間的(de)(de)溫差(cha)較大,可加速鹽(yan)(yan)水與(yu)制冷(leng)(leng)劑(ji)之間的(de)(de)傳熱,有利于鹽(yan)(yan)水的(de)(de)冷(leng)(leng)卻(que),但隨(sui)著t2的(de)(de)增加,蒸(zheng)發(fa)溫度(du)降低將需要,這(zhe)將導致壓縮機的(de)(de)單位功耗(hao)增加。因(yin)此,蒸(zheng)發(fa)溫度(du)與(yu)鹽(yan)(yan)水溫差(cha)在(zai)5℃之間。
3)鹽(yan)(yan)(yan)(yan)(yan)水(shui)的(de)(de)凝固(gu)(gu)溫(wen)度必須確保(bao)它(ta)不(bu)會在低溫(wen)下凍(dong)(dong)結,以保(bao)持鹽(yan)(yan)(yan)(yan)(yan)水(shui)在制冰池(chi)中循環。如(ru)果(guo)鹽(yan)(yan)(yan)(yan)(yan)水(shui)的(de)(de)冷凍(dong)(dong)溫(wen)度接近蒸(zheng)發(fa)溫(wen)度,則鹽(yan)(yan)(yan)(yan)(yan)水(shui)有凍(dong)(dong)結的(de)(de)風險。但(dan)是,如(ru)果(guo)要求鹽(yan)(yan)(yan)(yan)(yan)水(shui)的(de)(de)凝固(gu)(gu)溫(wen)度太低,則由于鹽(yan)(yan)(yan)(yan)(yan)水(shui)濃度的(de)(de)增(zeng)加,攪拌器的(de)(de)功率消耗將(jiang)增(zeng)加。因此,鹽(yan)(yan)(yan)(yan)(yan)水(shui)冷凍(dong)(dong)溫(wen)度比蒸(zheng)發(fa)溫(wen)度低6~8℃。
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