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冷水機四大部件之蒸發器的選購方法

2023-10-13

1. 水(shui)(shui)(shui)(shui)箱浸式蒸(zheng)發(fa)器(qi)是一種(zhong)用于(yu)(yu)(yu)開(kai)式循(xun)環(huan)系(xi)統的非揮發(fa)性(xing)(xing)制(zhi)(zhi)冷(leng)(leng)(leng)劑。在(zai)鹵水(shui)(shui)(shui)(shui)制(zhi)(zhi)冰(bing)(bing)罐的生(sheng)產過程(cheng)中(zhong)(zhong),不能(neng)采用閉(bi)式循(xun)環(huan)系(xi)統,因此該蒸(zheng)發(fa)器(qi)是**理想的制(zhi)(zhi)冰(bing)(bing)罐。水(shui)(shui)(shui)(shui)箱浸式蒸(zheng)發(fa)器(qi)也可用于(yu)(yu)(yu)在(zai)鹽(yan)水(shui)(shui)(shui)(shui)中(zhong)(zhong)冷(leng)(leng)(leng)卻或冷(leng)(leng)(leng)凍袋裝(zhuang)食品,或用于(yu)(yu)(yu)集(ji)中(zhong)(zhong)噴(pen)霧空(kong)調制(zhi)(zhi)冷(leng)(leng)(leng)系(xi)統。2. 鹽(yan)水(shui)(shui)(shui)(shui)對(dui)黑色金屬有(you)很強的腐蝕(shi)性(xing)(xing)。當它與空(kong)氣接觸時(shi),它的腐蝕(shi)更(geng)加嚴重(zhong)。因此,如果生(sheng)產工藝允許,盡(jin)量使用閉(bi)合循(xun)環(huan)。對(dui)于(yu)(yu)(yu)揮發(fa)性(xing)(xing)制(zhi)(zhi)冷(leng)(leng)(leng)劑循(xun)環(huan)系(xi)統,必須采用閉(bi)式循(xun)環(huan)。在(zai)這(zhe)兩種(zhong)情況(kuang)下,臥式殼管(guan)蒸(zheng)發(fa)器(qi)是制(zhi)(zhi)冷(leng)(leng)(leng)機(ji)組的**選擇。

3.工業制(zhi)(zhi)冷機組采用水(shui)箱浸(jin)(jin)沒式(shi)或殼(ke)管式(shi)蒸(zheng)發器(qi)(qi)(qi)時,制(zhi)(zhi)冷劑(ji)工作(zuo)溫(wen)度應(ying)比(bi)(bi)制(zhi)(zhi)冷劑(ji)蒸(zheng)發器(qi)(qi)(qi)工作(zuo)溫(wen)度高5℃左右(you),制(zhi)(zhi)冷劑(ji)凝固點應(ying)比(bi)(bi)制(zhi)(zhi)冷劑(ji)蒸(zheng)發溫(wen)度低5~8℃(水(shui)箱浸(jin)(jin)沒式(shi)蒸(zheng)發器(qi)(qi)(qi)為5~6℃,殼(ke)管式(shi)蒸(zheng)發器(qi)(qi)(qi)為6~8℃)。

4. 冷(leng)(leng)卻(que)排氣管(guan)(guan)(guan)(guan)和冷(leng)(leng)卻(que)風(feng)扇(shan)的(de)選擇(ze):冷(leng)(leng)庫(ku)(ku)(ku)中,通(tong)常使用(yong)冷(leng)(leng)卻(que)風(feng)扇(shan)來提高冷(leng)(leng)卻(que)溫度(du)。對于安裝在小型冷(leng)(leng)庫(ku)(ku)(ku)的(de)冰箱,可采用(yong)彎管(guan)(guan)(guan)(guan)或(huo)壁(bi)(bi)管(guan)(guan)(guan)(guan)加頂管(guan)(guan)(guan)(guan)。冷(leng)(leng)庫(ku)(ku)(ku)通(tong)常采用(yong)壁(bi)(bi)管(guan)(guan)(guan)(guan)或(huo)頂管(guan)(guan)(guan)(guan),防止貨物干(gan)燥。如果(guo)在冷(leng)(leng)庫(ku)(ku)(ku)中沒(mei)有干(gan)燥問題,一般采用(yong)冷(leng)(leng)卻(que)風(feng)機。

5. 對于蒸(zheng)(zheng)(zheng)發(fa)溫(wen)度(du)較低(di)的工(gong)業制冷(leng)機組蒸(zheng)(zheng)(zheng)發(fa)器,要注(zhu)意制冷(leng)劑液柱(zhu)高度(du)對制冷(leng)機組蒸(zheng)(zheng)(zheng)發(fa)溫(wen)度(du)的影響。蒸(zheng)(zheng)(zheng)發(fa)溫(wen)度(du)越(yue)低(di),液柱(zhu)的影響越(yue)大。因此,應采取措施,降低(di)蒸(zheng)(zheng)(zheng)發(fa)器內液柱(zhu)的高度(du)。