一、風冷式冷水機組與水冷式冷水機組的區別在哪里
對于行業內的朋友來說,在遇到選用冷水機組的時候不(bu)知道(dao)有(you)(you)風(feng)冷和(he)水冷之(zhi)說,更不(bu)知道(dao)這兩者之(zhi)間的區別在(zai)哪(na),今天從以下幾個(ge)(ge)方面來(lai)給(gei)大(da)家聊聊這個(ge)(ge)話(hua)題(ti),希望能對(dui)各(ge)位有(you)(you)所幫助(zhu)。
1、性能比較:
水(shui)冷式(shi)機(ji)組冷凝器的傳(chuan)熱溫(wen)(wen)(wen)差(cha)一般(ban)(ban)為4~8℃,而(er)風(feng)冷式(shi)機(ji)組的傳(chuan)熱溫(wen)(wen)(wen)差(cha)一般(ban)(ban)為8~15℃,在相(xiang)同的室(shi)(shi)外環境溫(wen)(wen)(wen)度(du)下(xia),冷卻循(xun)環水(shui)的水(shui)溫(wen)(wen)(wen)要(yao)比室(shi)(shi)外空氣溫(wen)(wen)(wen)度(du)低,因此風(feng)冷式(shi)機(ji)組正常(chang)運轉的冷凝溫(wen)(wen)(wen)度(du)要(yao)比水(shui)冷機(ji)組的冷凝溫(wen)(wen)(wen)度(du)高得多,從(cong)而(er)使(shi)風(feng)冷式(shi)機(ji)組在相(xiang)同的制冷量情況下(xia),其耗電量比水(shui)冷式(shi)機(ji)組大。
2、設備初投資比較:
由于(yu)水的(de)(de)(de)換(huan)熱效率(lv)遠遠大于(yu)空氣(qi)的(de)(de)(de)換(huan)熱效率(lv),風(feng)(feng)(feng)冷(leng)(leng)式(shi)(shi)冷(leng)(leng)凝器與相(xiang)同換(huan)熱量的(de)(de)(de)水冷(leng)(leng)式(shi)(shi)冷(leng)(leng)凝器相(xiang)比,設備(bei)體積大,所用(yong)材料(liao)多,制(zhi)造(zao)成(cheng)本較高。水冷(leng)(leng)式(shi)(shi)冷(leng)(leng)水機(ji)(ji)組(zu)即(ji)使加上冷(leng)(leng)卻水系統的(de)(de)(de)設備(bei)費用(yong),其總費用(yong)仍要比風(feng)(feng)(feng)冷(leng)(leng)式(shi)(shi)機(ji)(ji)組(zu)低20%左右。另外,由于(yu)風(feng)(feng)(feng)冷(leng)(leng)機(ji)(ji)組(zu)的(de)(de)(de)設備(bei)名義(yi)功(gong)率(lv)比水冷(leng)(leng)機(ji)(ji)組(zu)的(de)(de)(de)名義(yi)功(gong)率(lv)大,在(zai)電(dian)力增(zeng)容、電(dian)控(kong)設備(bei)等方面的(de)(de)(de)費用(yong)也較高。
3、設備機房比較:
風冷(leng)(leng)式冷(leng)(leng)水(shui)(shui)(shui)機組是(shi)戶外型機器,可以(yi)(yi)放在(zai)建(jian)筑物的屋(wu)面或室外地(di)坪(ping)上,其冷(leng)(leng)凍水(shui)(shui)(shui)循(xun)環(huan)泵(beng)亦可與機組放在(zai)一(yi)起,不需占用機房(fang)。對于水(shui)(shui)(shui)冷(leng)(leng)式冷(leng)(leng)水(shui)(shui)(shui)機組則應該提(ti)供(gong)機房(fang),以(yi)(yi)確保設(she)(she)備包括冷(leng)(leng)水(shui)(shui)(shui)機組、冷(leng)(leng)凍水(shui)(shui)(shui)循(xun)環(huan)泵(beng)、冷(leng)(leng)卻(que)水(shui)(shui)(shui)循(xun)環(huan)泵(beng)正常運行和使用壽命,同(tong)時在(zai)建(jian)筑物地(di)屋(wu)面或室外地(di)坪(ping)上放有(you)冷(leng)(leng)卻(que)塔(ta)設(she)(she)備。由此可見,在(zai)建(jian)筑物無(wu)法提(ti)供(gong)機房(fang)的情況下(xia),選(xuan)用風冷(leng)(leng)式冷(leng)(leng)水(shui)(shui)(shui)機組,應該是(shi)一(yi)個比較可行的方式。
4、運行成本比較:
由于水(shui)冷(leng)(leng)(leng)(leng)機(ji)組(zu)運(yun)轉在較(jiao)低的(de)冷(leng)(leng)(leng)(leng)凝溫度下,制(zhi)冷(leng)(leng)(leng)(leng)效率高,機(ji)組(zu)運(yun)轉的(de)耗電(dian)(dian)量較(jiao)小。一(yi)般(ban)來說,相同制(zhi)冷(leng)(leng)(leng)(leng)量的(de)水(shui)冷(leng)(leng)(leng)(leng)式冷(leng)(leng)(leng)(leng)水(shui)機(ji)組(zu)與風(feng)冷(leng)(leng)(leng)(leng)機(ji)組(zu)比較(jiao),水(shui)冷(leng)(leng)(leng)(leng)式機(ji)組(zu)的(de)總體耗電(dian)(dian)量(包(bao)括冷(leng)(leng)(leng)(leng)卻水(shui)泵及冷(leng)(leng)(leng)(leng)卻塔風(feng)機(ji)的(de)電(dian)(dian)耗量)僅為風(feng)冷(leng)(leng)(leng)(leng)式機(ji)組(zu)耗電(dian)(dian)量的(de)70%。
5、維護性比較:
水(shui)冷式(shi)(shi)機(ji)組所使用(yong)的(de)殼管(guan)式(shi)(shi)冷凝器在(zai)污垢(gou)積聚(ju)一定范圍(wei)內,對換熱效率的(de)影響較(jiao)(jiao)小,因此機(ji)組性(xing)能(neng)隨污垢(gou)產(chan)生(sheng)而下降的(de)幅度較(jiao)(jiao)小,清(qing)洗周期較(jiao)(jiao)長(chang),相對維護(hu)費用(yong)會低。而風冷式(shi)(shi)機(ji)組使用(yong)的(de)翅片式(shi)(shi)冷凝器的(de)換熱效率受(shou)灰垢(gou)積聚(ju)的(de)影響較(jiao)(jiao)大,散熱翅片管(guan)前必須設置濾塵(chen)柵網(wang),并且需要頻繁清(qing)洗。由于(yu)風冷式(shi)(shi)機(ji)組運(yun)(yun)轉壓力較(jiao)(jiao)高,一般安裝(zhuang)在(zai)室外,運(yun)(yun)行環境相對較(jiao)(jiao)為(wei)惡劣(lie),在(zai)維護(hu)性(xing)及(ji)可靠性(xing)方面均不如水(shui)冷式(shi)(shi)冷水(shui)機(ji)組。
二、風冷式冷水機組由哪些構造組成
風(feng)冷(leng)(leng)(leng)(leng)(leng)式(shi)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)組是冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)型號之一,將(jiang)常溫的(de)水(shui)通(tong)過(guo)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)的(de)壓(ya)縮機(ji)制冷(leng)(leng)(leng)(leng)(leng)到一定的(de)溫度以強(qiang)化冷(leng)(leng)(leng)(leng)(leng)卻模具或(huo)機(ji)器(qi)(qi),作(zuo)為單機(ji)使用(yong),散(san)熱裝置為內(nei)置之風(feng)扇,風(feng)冷(leng)(leng)(leng)(leng)(leng)式(shi)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)組主要有三個相(xiang)互聯系(xi)(xi)的(de)系(xi)(xi)統(tong):制冷(leng)(leng)(leng)(leng)(leng)劑(ji)循環系(xi)(xi)統(tong)、水(shui)循環系(xi)(xi)統(tong)、電(dian)器(qi)(qi)自(zi)控系(xi)(xi)統(tong)。風(feng)冷(leng)(leng)(leng)(leng)(leng)式(shi)冷(leng)(leng)(leng)(leng)(leng)水(shui)機(ji)組的(de)構造主要有:冷(leng)(leng)(leng)(leng)(leng)凝器(qi)(qi)、貯(zhu)液器(qi)(qi)、干燥過(guo)濾器(qi)(qi)、蒸發器(qi)(qi)、熱力膨脹(zhang)閥(fa)、制冷(leng)(leng)(leng)(leng)(leng)劑(ji)。