化工冷凍機供應

工作原理(li)

將空(kong)氣冷(leng)卻至露點(dian)溫度以下，空(kong)氣中(zhong)的水(shui)氣即凝(ning)結成水(shui)。將凝(ning)結水(shui)排除(chu)(chu)再(zai)加(jia)熱即可(ke)獲得低濕度的空氣。空氣的冷(leng)(leng)(leng)(leng)(leng)卻(que)來源可(ke)使用(yong)冷(leng)(leng)(leng)(leng)(leng)凍(dong)(dong)(dong)機的冷(leng)(leng)(leng)(leng)(leng)媒(mei)、冰水(shui)或鹵水(shui)，現代(dai)冷(leng)(leng)(leng)(leng)(leng)凍(dong)(dong)(dong)除(chu)(chu)濕機通(tong)常采用(yong)冷(leng)(leng)(leng)(leng)(leng)凍(dong)(dong)(dong)除(chu)(chu)濕機專用(yong)壓縮機制冷(leng)(leng)(leng)(leng)(leng)。高標(biao)冷(leng)(leng)(leng)(leng)(leng)凍(dong)(dong)(dong)除(chu)(chu)濕機原理濕度概念。

單級制冷循環系統(tong)

單級制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)機(ji)是應(ying)用比(bi)較廣(guang)泛的(de)(de)(de)(de)(de)一(yi)類制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)機(ji)，它可以應(ying)用于制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冰、空調、食品冷(leng)(leng)(leng)(leng)藏及工業(ye)生產過程等方面。單級制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)循(xun)環是指制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑在制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)系(xi)(xi)統(tong)(tong)(tong)內相(xiang)繼(ji)經過壓(ya)(ya)(ya)縮(suo)(suo)、冷(leng)(leng)(leng)(leng)凝(ning)(ning)、節流(liu)、蒸發(fa)四個過程，便完(wan)成了(le)單級制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)機(ji)的(de)(de)(de)(de)(de)循(xun)環，即(ji)達(da)到(dao)了(le)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)。 制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)系(xi)(xi)統(tong)(tong)(tong)由蒸發(fa)器(qi)(qi)(qi)(qi)、單級壓(ya)(ya)(ya)縮(suo)(suo)機(ji)、油分(fen)(fen)離器(qi)(qi)(qi)(qi)、冷(leng)(leng)(leng)(leng)凝(ning)(ning)器(qi)(qi)(qi)(qi)、貯(zhu)氨器(qi)(qi)(qi)(qi)、氨液(ye)(ye)分(fen)(fen)離器(qi)(qi)(qi)(qi)、節流(liu)閥(fa)(fa)及其(qi)它附屬設備(bei)等組成，相(xiang)互間(jian)通過管子聯接成一(yi)個封閉(bi)系(xi)(xi)統(tong)(tong)(tong)。其(qi)中(zhong)，蒸發(fa)器(qi)(qi)(qi)(qi)是輸送冷(leng)(leng)(leng)(leng)量的(de)(de)(de)(de)(de)設備(bei)，液(ye)(ye)態(tai)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑蒸發(fa)后(hou)吸(xi)收被冷(leng)(leng)(leng)(leng)卻物(wu)體的(de)(de)(de)(de)(de)熱量實現制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)；壓(ya)(ya)(ya)縮(suo)(suo)機(ji)是系(xi)(xi)統(tong)(tong)(tong)的(de)(de)(de)(de)(de)心臟，起(qi)著吸(xi)入、壓(ya)(ya)(ya)縮(suo)(suo)、輸送制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑蒸汽(qi)的(de)(de)(de)(de)(de)作(zuo)(zuo)用；油分(fen)(fen)離器(qi)(qi)(qi)(qi)用于沉降(jiang)分(fen)(fen)離壓(ya)(ya)(ya)縮(suo)(suo)后(hou)的(de)(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑蒸汽(qi)中(zhong)的(de)(de)(de)(de)(de)油；冷(leng)(leng)(leng)(leng)凝(ning)(ning)器(qi)(qi)(qi)(qi)將壓(ya)(ya)(ya)縮(suo)(suo)機(ji)排出的(de)(de)(de)(de)(de)高(gao)溫制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑蒸汽(qi)冷(leng)(leng)(leng)(leng)凝(ning)(ning)成為(wei)飽和(he)(he)液(ye)(ye)體；貯(zhu)氨器(qi)(qi)(qi)(qi)用來貯(zhu)存冷(leng)(leng)(leng)(leng)凝(ning)(ning)器(qi)(qi)(qi)(qi)里(li)冷(leng)(leng)(leng)(leng)凝(ning)(ning)的(de)(de)(de)(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑氨液(ye)(ye)，調節冷(leng)(leng)(leng)(leng)凝(ning)(ning)器(qi)(qi)(qi)(qi)和(he)(he)蒸發(fa)器(qi)(qi)(qi)(qi)之間(jian)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑氨液(ye)(ye)的(de)(de)(de)(de)(de)供(gong)需關系(xi)(xi)；氨液(ye)(ye)分(fen)(fen)離器(qi)(qi)(qi)(qi)是氨重力供(gong)液(ye)(ye)系(xi)(xi)統(tong)(tong)(tong)中(zhong)的(de)(de)(de)(de)(de)重要附屬設備(bei)；節流(liu)閥(fa)(fa)對制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑起(qi)節流(liu)降(jiang)壓(ya)(ya)(ya)作(zuo)(zuo)用同(tong)時(shi)控制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)和(he)(he)調節流(liu)入蒸發(fa)器(qi)(qi)(qi)(qi)中(zhong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)(leng)(leng)劑液(ye)(ye)體的(de)(de)(de)(de)(de)流(liu)量，并將系(xi)(xi)統(tong)(tong)(tong)分(fen)(fen)為(wei)高(gao)壓(ya)(ya)(ya)側和(he)(he)低壓(ya)(ya)(ya)側兩部(bu)分(fen)(fen)。

雙級制冷循(xun)環系統

雙(shuang)級制冷(leng)(leng)(leng)(leng)循環(huan)是在(zai)單級制冷(leng)(leng)(leng)(leng)循環(huan)的(de)基(ji)礎上發(fa)(fa)(fa)展起來的(de)，其(qi)壓(ya)(ya)(ya)縮(suo)過程分兩(liang)個階段進(jin)(jin)行，來自蒸(zheng)發(fa)(fa)(fa)器(qi)(qi)的(de)制冷(leng)(leng)(leng)(leng)劑蒸(zheng)汽(qi)先進(jin)(jin)入(ru)低(di)壓(ya)(ya)(ya)級汽(qi)缸壓(ya)(ya)(ya)縮(suo)到(dao)中(zhong)間(jian)壓(ya)(ya)(ya)力，經(jing)過中(zhong)間(jian)冷(leng)(leng)(leng)(leng)卻后再(zai)進(jin)(jin)入(ru)高壓(ya)(ya)(ya)級汽(qi)缸，壓(ya)(ya)(ya)縮(suo)到(dao)冷(leng)(leng)(leng)(leng)凝壓(ya)(ya)(ya)力進(jin)(jin)入(ru)冷(leng)(leng)(leng)(leng)凝器(qi)(qi)中(zhong)。一般蒸(zheng)發(fa)(fa)(fa)溫度在(zai)-25℃~-50℃時，應采(cai)用(yong)雙(shuang)級壓(ya)(ya)(ya)縮(suo)機進(jin)(jin)行制冷(leng)(leng)(leng)(leng)。 制冷(leng)(leng)(leng)(leng)系(xi)(xi)統由蒸(zheng)發(fa)(fa)(fa)器(qi)(qi)、雙(shuang)級壓(ya)(ya)(ya)縮(suo)機、油分離器(qi)(qi)、冷(leng)(leng)(leng)(leng)凝器(qi)(qi)、中(zhong)間(jian)冷(leng)(leng)(leng)(leng)卻器(qi)(qi)、貯氨器(qi)(qi)、氨液(ye)分離器(qi)(qi)、節(jie)流(liu)閥及其(qi)它附屬設備等組成(cheng)，相互(hu)間(jian)通過管子(zi)聯(lian)接成(cheng)一個封閉(bi)系(xi)(xi)統。其(qi)中(zhong)，中(zhong)間(jian)冷(leng)(leng)(leng)(leng)卻器(qi)(qi)利(li)用(yong)少量液(ye)態制冷(leng)(leng)(leng)(leng)工(gong)質在(zai)中(zhong)間(jian)壓(ya)(ya)(ya)力下汽(qi)化吸熱(re)，使低(di)壓(ya)(ya)(ya)級排(pai)出(chu)的(de)過熱(re)蒸(zheng)汽(qi)得(de)到(dao)冷(leng)(leng)(leng)(leng)卻，降低(di)高壓(ya)(ya)(ya)級的(de)吸氣(qi)溫度，同時還使高壓(ya)(ya)(ya)液(ye)態制冷(leng)(leng)(leng)(leng)工(gong)質得(de)到(dao)冷(leng)(leng)(leng)(leng)卻。

制冷劑運(yun)行原理

進(jin)入冷(leng)凝(ning)盤(pan)(pan)(pan)管的(de)高(gao)溫氣(qi)(qi)態制(zhi)冷(leng)劑通(tong)過(guo)盤(pan)(pan)(pan)管壁(bi)與(yu)盤(pan)(pan)(pan)管外側(ce)噴淋水(shui)和空(kong)(kong)氣(qi)(qi)進(jin)行熱(re)交換(huan)，制(zhi)冷(leng)劑氣(qi)(qi)體的(de)溫度隨著在管內的(de)時間(jian)加長而下降(jiang)，由氣(qi)(qi)態逐漸變成液(ye)態。用風機*風力，使噴淋水(shui)充分覆蓋在盤(pan)(pan)(pan)管外表面(mian)上，從而提高(gao)了換(huan)熱(re)效(xiao)率。噴淋水(shui)和空(kong)(kong)氣(qi)(qi)吸收盤(pan)(pan)(pan)管壁(bi)的(de)熱(re)量后溫度升高(gao)，部分水(shui)由液(ye)態變成氣(qi)(qi)態，帶走管壁(bi)上大量熱(re)量，濕熱(re)空(kong)(kong)氣(qi)(qi)中(zhong)的(de)水(shui)份被(bei)擋水(shui)板截住引入PVC熱(re)交換(huan)層中(zhong)，熱(re)空(kong)(kong)氣(qi)(qi)排出。PVC熱(re)交換(huan)層中(zhong)的(de)水(shui)被(bei)流(liu)過(guo)的(de)新風冷(leng)卻，溫度降(jiang)低，流(liu)入集水(shui)槽中(zhong)，再由水(shui)泵(beng)送(song)入噴淋系統(tong)中(zhong)，繼續(xu)循(xun)環。散失(shi)到空(kong)(kong)氣(qi)(qi)中(zhong)的(de)水(shui)份由水(shui)位(wei)控制(zhi)裝(zhuang)置(zhi)自(zi)動調節補充

化工冷凍機供應