在(zai)大陸性氣候或沙漠(mo)地(di)區，氣溫(wen)較高而(er)且比較干(gan)燥，干(gan)球(qiu)溫(wen)度與(yu)濕球(qiu)溫(wen)度之差大于30度(du)，若能采用對空(kong)(kong)氣(qi)(qi)增(zeng)(zeng)濕(shi)的(de)辦法，將空(kong)(kong)氣(qi)(qi)的(de)干(gan)球(qiu)(qiu)溫度(du)降低(di)到(dao)(dao)接(jie)近濕(shi)球(qiu)(qiu)溫度(du)，則可使(shi)傳熱溫差增(zeng)(zeng)加(jia)，冷(leng)(leng)(leng)卻(que)能力提高，增(zeng)(zeng)濕(shi)型空(kong)(kong)氣(qi)(qi)冷(leng)(leng)(leng)卻(que)器(qi)(qi)由增(zeng)(zeng)濕(shi)室，水(shui)(shui)(shui)分離(li)器(qi)(qi)，循(xun)環水(shui)(shui)(shui)泵和空(kong)(kong)氣(qi)(qi)冷(leng)(leng)(leng)卻(que)器(qi)(qi)組(zu)成，水(shui)(shui)(shui)由循(xun)環水(shui)(shui)(shui)泵連(lian)續不(bu)斷的(de)從水(shui)(shui)(shui)池送(song)到(dao)(dao)水(shui)(shui)(shui)分布板(ban)上，噴入(ru)增(zeng)(zeng)濕(shi)室中，空(kong)(kong)氣(qi)(qi)通(tong)過增(zeng)(zeng)濕(shi)室時(shi)，由于水(shui)(shui)(shui)分的(de)蒸發汽化(hua)，被冷(leng)(leng)(leng)卻(que)到(dao)(dao)接(jie)近濕(shi)球(qiu)(qiu)溫度(du)，然后經過水(shui)(shui)(shui)分離(li)器(qi)(qi)除(chu)去(qu)水(shui)(shui)(shui)分后進(jin)入(ru)空(kong)(kong)氣(qi)(qi)冷(leng)(leng)(leng)卻(que)器(qi)(qi)，當大(da)氣(qi)(qi)溫度(du)高于設(she)計值時(shi)，通(tong)風(feng)室中的(de)風(feng)門(men)關閉，當大(da)氣(qi)(qi)溫度(du)低(di)于設(she)計值時(shi)，風(feng)門(men)自動打開，水(shui)(shui)(shui)也(ye)就自動切斷，使(shi)空(kong)(kong)氣(qi)(qi)直接(jie)通(tong)過翅片管束，這樣在夏(xia)季的(de)夜晚(wan)及冬秋季，循(xun)環水(shui)(shui)(shui)泵可以不(bu)啟動，空(kong)(kong)氣(qi)(qi)冷(leng)(leng)(leng)卻(que)器(qi)(qi)按干(gan)式運行，增(zeng)(zeng)濕(shi)型空(kong)(kong)氣(qi)(qi)冷(leng)(leng)(leng)卻(que)器(qi)(qi)在一(yi)些國(guo)家，主要是中東地(di)區(qu)(qu)得到(dao)(dao)應用，我國(guo)大(da)部分地(di)區(qu)(qu)相對濕(shi)度(du)偏(pian)高，除(chu)西部地(di)區(qu)(qu)外，較少選(xuan)用增(zeng)(zeng)濕(shi)型空(kong)(kong)氣(qi)(qi)冷(leng)(leng)(leng)卻(que)器(qi)(qi)