一、恒溫恒濕空調系統的形式有哪兩種
恒溫恒濕空調可以對室內溫、濕度波動和區域偏差進行嚴格的控制,在很多領域都有應用,恒溫恒濕空調系統的形式(shi)主要有兩種:
1、采用恒溫恒濕空調機組(自帶制冷機)的全空氣系統
恒溫恒濕空(kong)(kong)(kong)調(diao)機(ji)(ji)組(zu)宜(yi)用在(zai)精(jing)度Δt=±1℃,Δφ=10%的(de)空(kong)(kong)(kong)調(diao)房間(jian)(jian)內。在(zai)夏季,機(ji)(ji)組(zu)對濕度的(de)控(kong)(kong)制(zhi)能力較低,因(yin)此(ci)機(ji)(ji)組(zu)冷量(liang)的(de)調(diao)節(jie)一(yi)般(ban)只(zhi)有兩檔或三檔。因(yin)此(ci)只(zhi)適用于濕負荷變化比較小的(de)空(kong)(kong)(kong)調(diao)房間(jian)(jian)。如(ru)果(guo)空(kong)(kong)(kong)調(diao)房間(jian)(jian)對濕度控(kong)(kong)制(zhi)要求不高,這種機(ji)(ji)組(zu)可用于溫度控(kong)(kong)制(zhi)要求較高(如(ru)±0.5℃)的(de)場合。但如(ru)果(guo)恒溫恒濕空(kong)(kong)(kong)調(diao)機(ji)(ji)組(zu)采用變頻(pin)控(kong)(kong)制(zhi)壓縮機(ji)(ji)的(de)轉速,則濕度的(de)控(kong)(kong)制(zhi)精(jing)度可達到±2%。
2、以冷凍水作介質的全空氣系統
以(yi)(yi)冷(leng)凍(dong)水(shui)(shui)作(zuo)冷(leng)卻(que)(que)介(jie)質的(de)(de)定風(feng)量(liang)(liang)(liang)全空氣系(xi)(xi)(xi)統(tong)的(de)(de)恒溫恒濕(shi)(shi)(shi)(shi)空調(diao)系(xi)(xi)(xi)統(tong)都(dou)采(cai)用(yong)(yong)再(zai)熱式(shi)(shi)系(xi)(xi)(xi)統(tong)。在夏(xia)季(ji),通過(guo)調(diao)節(jie)再(zai)加熱量(liang)(liang)(liang)以(yi)(yi)控制(zhi)溫度(du)(du),調(diao)節(jie)空氣冷(leng)卻(que)(que)設(she)備(bei)(bei)的(de)(de)冷(leng)量(liang)(liang)(liang)以(yi)(yi)控制(zhi)濕(shi)(shi)(shi)(shi)度(du)(du)。空氣冷(leng)卻(que)(que)設(she)備(bei)(bei)如采(cai)用(yong)(yong)表冷(leng)器的(de)(de)系(xi)(xi)(xi)統(tong),適宜用(yong)(yong)于濕(shi)(shi)(shi)(shi)度(du)(du)變化(hua)不大的(de)(de)場(chang)合。全年濕(shi)(shi)(shi)(shi)度(du)(du)變化(hua)較(jiao)大或濕(shi)(shi)(shi)(shi)度(du)(du)控制(zhi)精度(du)(du)較(jiao)高的(de)(de)場(chang)所(suo),熱濕(shi)(shi)(shi)(shi)處理設(she)備(bei)(bei)宜采(cai)用(yong)(yong)噴(pen)(pen)水(shui)(shui)室。噴(pen)(pen)水(shui)(shui)室都(dou)是開式(shi)(shi)的(de)(de),當(dang)(dang)冷(leng)凍(dong)水(shui)(shui)系(xi)(xi)(xi)統(tong)主要用(yong)(yong)于噴(pen)(pen)水(shui)(shui)室設(she)備(bei)(bei),冷(leng)凍(dong)水(shui)(shui)系(xi)(xi)(xi)統(tong)可以(yi)(yi)是開式(shi)(shi)的(de)(de);當(dang)(dang)系(xi)(xi)(xi)統(tong)中既有噴(pen)(pen)水(shui)(shui)室又有表冷(leng)器、風(feng)機(ji)盤管等(deng)設(she)備(bei)(bei),冷(leng)凍(dong)水(shui)(shui)系(xi)(xi)(xi)統(tong)應當(dang)(dang)優(you)先采(cai)用(yong)(yong)閉(bi)式(shi)(shi)系(xi)(xi)(xi)統(tong)。
二、恒溫恒濕空調機組分幾部分
恒溫恒濕空調機組是恒溫恒濕空調系統(tong)常(chang)用的形式,它自(zi)帶制(zhi)(zhi)冷機,由制(zhi)(zhi)冷系統(tong)、電(dian)加熱器、加濕(shi)器及溫濕(shi)度自(zi)動控制(zhi)(zhi)元件等(deng)幾部分組成(cheng),其(qi)具體結(jie)構(gou)包括:
干濕球溫度控制(zhi)器(qi)(qi)、電加(jia)熱(re)器(qi)(qi)、通風機、電極加(jia)濕器(qi)(qi)、蒸(zheng)發器(qi)(qi)、壓縮機、冷(leng)凝器(qi)(qi)、貯液器(qi)(qi)、壓力控制(zhi)器(qi)(qi)、過濾器(qi)(qi)、節流機構;如果是(shi)熱(re)泵式(shi)恒溫恒濕空調(diao)機組(zu),其制(zhi)冷(leng)系統中還會加(jia)一個四(si)通轉向閥,使冷(leng)凝器(qi)(qi)與蒸(zheng)發器(qi)(qi)互相轉換(huan)。