銀川溴化鋰直燃機制冷原理
銀川溴化(hua)鋰(li)直燃(ran)機(ji)(ji)(ji)制(zhi)(zhi)(zhi)冷,又稱非電(dian)動空(kong)調制(zhi)(zhi)(zhi)冷機(ji)(ji)(ji),是(shi)利用燃(ran)料加熱(re)機(ji)(ji)(ji)組中(zhong)的(de)溴化(hua)鋰(li)溶液,通(tong)過水蒸氣的(de)一系列狀態變化(hua),與空(kong)調水和冷卻水進行冷熱(re)交換,從而達到制(zhi)(zhi)(zhi)冷和加熱(re)的(de)效果。溴化(hua)鋰(li)直燃(ran)制(zhi)(zhi)(zhi)冷機(ji)(ji)(ji)是(shi)一種大型(xing)集中(zhong)供熱(re)制(zhi)(zhi)(zhi)冷的(de)中(zhong)央(yang)空(kong)調設備,廣泛應用于(yu)大型(xing)商(shang)業建筑、辦公(gong)樓等公(gong)共場所。
銀川溴化鋰直燃機(ji)制(zhi)冷(leng)組主(zhu)要(yao)由高溫發(fa)(fa)生器(高發(fa)(fa))組成、冷(leng)凝器、蒸發(fa)(fa)器和吸收器,加(jia)(jia)上冷(leng)卻水和空(kong)調(diao)水系統,以及其他一些輔助模塊,如高交易(yi)和低(di)交易(yi)。加(jia)(jia)熱(re)原理相(xiang)對(dui)簡(jian)(jian)單。高發(fa)(fa)部分可直接與空(kong)調(diao)水進行熱(re)交換,以達到加(jia)(jia)熱(re)效果。與加(jia)(jia)熱(re)相(xiang)比,制(zhi)冷(leng)過(guo)程和原理更難理解(jie)。本(ben)文簡(jian)(jian)要(yao)介(jie)紹(shao)了其制(zhi)冷(leng)過(guo)程和原理。
銀川溴化鋰直燃機
無(wu)論是制冷(leng)還是加熱,它都(dou)是由高(gao)(gao)發病率開(kai)始的(de)。高(gao)(gao)發病率相(xiang)當于(yu)(yu)(yu)整個單元(yuan)的(de)心臟。溴化鋰溶(rong)(rong)液相(xiang)當于(yu)(yu)(yu)單元(yuan)的(de)血液,高(gao)(gao)壓水蒸(zheng)氣(qi)相(xiang)當于(yu)(yu)(yu)單元(yuan)的(de)骨髓。為了(le)了(le)解制冷(leng)原理和過(guo)程,有必要了(le)解溴化鋰溶(rong)(rong)液和高(gao)(gao)壓水蒸(zheng)氣(qi)在(zai)單元(yuan)中的(de)行走(zou)路線,并穿插相(xiang)關(guan)理論知識來解釋相(xiang)關(guan)過(guo)程和節點。
首先,我們從高(gao)(gao)發(fa)區(qu)(qu)開始(shi)。高(gao)(gao)發(fa)區(qu)(qu)溶液(ye)(ye)(ye)(ye)(ye)通(tong)過(guo)燃料加(jia)熱(re)至沸(fei)騰(teng)狀(zhuang)態(tai)(tai)(tai)。由于(yu)溴化(hua)鋰溶質(zhi)沸(fei)點(dian)高(gao)(gao),約(yue)1300度(du)(du)(du),水(shui)(shui)(shui)的沸(fei)點(dian)為(wei)100度(du)(du)(du),形成(cheng)(cheng)的高(gao)(gao)壓蒸(zheng)(zheng)(zheng)汽為(wei)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)。空腔中(zhong)的水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)通(tong)過(guo)管(guan)道(dao)進(jin)(jin)入(ru)(ru)低(di)(di)發(fa)區(qu)(qu),濃(nong)縮(suo)溴化(hua)鋰溶液(ye)(ye)(ye)(ye)(ye)通(tong)過(guo)溢液(ye)(ye)(ye)(ye)(ye)管(guan)道(dao)進(jin)(jin)入(ru)(ru)高(gao)(gao)交(jiao)換(huan)(huan)熱(re);管(guan)道(dao)中(zhong)的高(gao)(gao)溫水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)進(jin)(jin)入(ru)(ru)低(di)(di)發(fa)區(qu)(qu),低(di)(di)發(fa)區(qu)(qu)溶液(ye)(ye)(ye)(ye)(ye)加(jia)熱(re)至沸(fei)騰(teng),低(di)(di)發(fa)區(qu)(qu)溶液(ye)(ye)(ye)(ye)(ye)產生水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)和(he)濃(nong)縮(suo)液(ye)(ye)(ye)(ye)(ye)。管(guan)道(dao)中(zhong)的高(gao)(gao)溫水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)通(tong)過(guo)熱(re)交(jiao)換(huan)(huan)形成(cheng)(cheng)液(ye)(ye)(ye)(ye)(ye)態(tai)(tai)(tai)水(shui)(shui)(shui),液(ye)(ye)(ye)(ye)(ye)態(tai)(tai)(tai)水(shui)(shui)(shui)和(he)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)進(jin)(jin)入(ru)(ru)冷凝器(qi)(qi)(qi)(qi),低(di)(di)發(fa)區(qu)(qu)溶液(ye)(ye)(ye)(ye)(ye)進(jin)(jin)入(ru)(ru)低(di)(di)交(jiao)換(huan)(huan)熱(re);高(gao)(gao)交(jiao)換(huan)(huan)和(he)低(di)(di)交(jiao)換(huan)(huan)熱(re)完成(cheng)(cheng)后(hou),濃(nong)縮(suo)溶液(ye)(ye)(ye)(ye)(ye)沿管(guan)道(dao)進(jin)(jin)入(ru)(ru)吸收(shou)器(qi)(qi)(qi)(qi)從冷凝器(qi)(qi)(qi)(qi)端流(liu)出(chu),空調(diao)水(shui)(shui)(shui)通(tong)過(guo)銅管(guan)從蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)(qi)(qi)底部進(jin)(jin)入(ru)(ru),從蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)(qi)(qi)頂部流(liu)出(chu);在(zai)(zai)冷凝器(qi)(qi)(qi)(qi)中(zhong),冷卻水(shui)(shui)(shui)與液(ye)(ye)(ye)(ye)(ye)體水(shui)(shui)(shui)和(he)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)進(jin)(jin)行(xing)(xing)熱(re)交(jiao)換(huan)(huan)。液(ye)(ye)(ye)(ye)(ye)體水(shui)(shui)(shui)和(he)水(shui)(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)變形約(yue)39度(du)(du)(du)。溫水(shui)(shui)(shui)進(jin)(jin)入(ru)(ru)蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)(qi)(qi)。蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)(qi)(qi)是一個高(gao)(gao)真空環境。溫水(shui)(shui)(shui)進(jin)(jin)入(ru)(ru)蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)(qi)(qi)后(hou),體積迅速增加(jia)并(bing)蒸(zheng)(zheng)(zheng)發(fa),通(tong)常稱為(wei)閃(shan)發(fa)。根(gen)據理想的方(fang)程(cheng)式(shi),其溫度(du)(du)(du)迅速下(xia)(xia)降(jiang)到5度(du)(du)(du)左右;吸收(shou)器(qi)(qi)(qi)(qi)與蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)(qi)(qi)相連(lian),但兩(liang)者之間存(cun)在(zai)(zai)相對(dui)壓差。在(zai)(zai)蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)(qi)(qi)中(zhong),空調(diao)水(shui)(shui)(shui)與低(di)(di)溫蒸(zheng)(zheng)(zheng)汽進(jin)(jin)行(xing)(xing)熱(re)交(jiao)換(huan)(huan),空調(diao)水(shui)(shui)(shui)冷卻后(hou)送至客戶端冷卻,低(di)(di)溫蒸(zheng)(zheng)(zheng)汽凝結成(cheng)(cheng)帶走機組(zu)熱(re)量,濃(nong)溶液(ye)(ye)(ye)(ye)(ye)吸收(shou)水(shui)(shui)(shui),形成(cheng)(cheng)稀溶液(ye)(ye)(ye)(ye)(ye)到機組(zu)儲液(ye)(ye)(ye)(ye)(ye)罐。在(zai)(zai)泵力的作用下(xia)(xia),儲液(ye)(ye)(ye)(ye)(ye)罐中(zhong)的稀溶液(ye)(ye)(ye)(ye)(ye)分為(wei)兩(liang)種(zhong)方(fang)式(shi),一種(zhong)是從高(gao)(gao)到高(gao)(gao),另一種(zhong)是從低(di)(di)到低(di)(di),形成(cheng)(cheng)制冷循(xun)環。
連續制(zhi)冷(leng)是(shi)(shi)上述冷(leng)循環的重復,這是(shi)(shi)制(zhi)冷(leng)過程(cheng)中較(jiao)簡單的定性分析。如果需要(yao)定量分析,則需要(yao)查詢熱工(gong)程(cheng)相關(guan)數據并進一步學習理(li)論。
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