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主要有(you)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(heng)溫(wen)恒(heng)濕(shi)空(kong)調(diao)機(ji)(ji)組(zu)宜用(yong)(yong)在精度(du)(du)Δt=±1℃,Δφ=10%的(de)空(kong)調(diao)房間內。在夏季,機(ji)(ji)組(zu)對濕(shi)度(du)(du)的(de)控(kong)(kong)制能力(li)較(jiao)低,因此機(ji)(ji)組(zu)冷量的(de)調(diao)節一(yi)般只有兩檔(dang)或三(san)檔(dang)。因此只適(shi)用(yong)(yong)于濕(shi)負荷(he)變化比較(jiao)小的(de)空(kong)調(diao)房間。如果(guo)空(kong)調(diao)房間對濕(shi)度(du)(du)控(kong)(kong)制要求(qiu)不(bu)高,這種機(ji)(ji)組(zu)可(ke)用(yong)(yong)于溫(wen)度(du)(du)控(kong)(kong)制要求(qiu)較(jiao)高(如±0.5℃)的(de)場合。但如果(guo)恒(heng)溫(wen)恒(heng)濕(shi)空(kong)調(diao)機(ji)(ji)組(zu)采(cai)用(yong)(yong)變頻控(kong)(kong)制壓縮機(ji)(ji)的(de)轉速(su),則(ze)濕(shi)度(du)(du)的(de)控(kong)(kong)制精度(du)(du)可(ke)達到±2%。
2、以冷凍水作介質的全空氣系統
以(yi)冷(leng)(leng)凍(dong)(dong)水(shui)(shui)(shui)(shui)(shui)作冷(leng)(leng)卻(que)介質(zhi)的(de)(de)(de)(de)定風(feng)量(liang)(liang)全(quan)空氣系統(tong)的(de)(de)(de)(de)恒溫(wen)恒濕空調(diao)系統(tong)都(dou)采(cai)用(yong)再熱(re)式(shi)系統(tong)。在夏(xia)季,通過調(diao)節再加熱(re)量(liang)(liang)以(yi)控(kong)制溫(wen)度(du)(du),調(diao)節空氣冷(leng)(leng)卻(que)設備(bei)的(de)(de)(de)(de)冷(leng)(leng)量(liang)(liang)以(yi)控(kong)制濕度(du)(du)。空氣冷(leng)(leng)卻(que)設備(bei)如(ru)采(cai)用(yong)表冷(leng)(leng)器的(de)(de)(de)(de)系統(tong),適宜(yi)用(yong)于(yu)濕度(du)(du)變化(hua)不大的(de)(de)(de)(de)場合。全(quan)年濕度(du)(du)變化(hua)較大或濕度(du)(du)控(kong)制精度(du)(du)較高的(de)(de)(de)(de)場所(suo),熱(re)濕處(chu)理設備(bei)宜(yi)采(cai)用(yong)噴(pen)水(shui)(shui)(shui)(shui)(shui)室(shi)。噴(pen)水(shui)(shui)(shui)(shui)(shui)室(shi)都(dou)是開(kai)(kai)式(shi)的(de)(de)(de)(de),當冷(leng)(leng)凍(dong)(dong)水(shui)(shui)(shui)(shui)(shui)系統(tong)主要用(yong)于(yu)噴(pen)水(shui)(shui)(shui)(shui)(shui)室(shi)設備(bei),冷(leng)(leng)凍(dong)(dong)水(shui)(shui)(shui)(shui)(shui)系統(tong)可以(yi)是開(kai)(kai)式(shi)的(de)(de)(de)(de);當系統(tong)中(zhong)既有(you)噴(pen)水(shui)(shui)(shui)(shui)(shui)室(shi)又有(you)表冷(leng)(leng)器、風(feng)機盤管等(deng)設備(bei),冷(leng)(leng)凍(dong)(dong)水(shui)(shui)(shui)(shui)(shui)系統(tong)應當優先采(cai)用(yong)閉式(shi)系統(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(xi)(xi)統常用的形(xing)式,它自帶制(zhi)冷機,由(you)制(zhi)冷系(xi)(xi)統、電加熱器、加濕器及溫濕度自動(dong)控制(zhi)元件等幾部分組成,其具(ju)體結構包括:
干濕球溫(wen)度控(kong)制器(qi)、電加熱器(qi)、通(tong)(tong)風(feng)機(ji)、電極加濕器(qi)、蒸發器(qi)、壓(ya)縮機(ji)、冷(leng)凝器(qi)、貯液器(qi)、壓(ya)力控(kong)制器(qi)、過濾器(qi)、節流機(ji)構;如果是(shi)熱泵式恒溫(wen)恒濕空調(diao)機(ji)組(zu),其(qi)制冷(leng)系統中還會加一個(ge)四通(tong)(tong)轉(zhuan)向閥(fa),使冷(leng)凝器(qi)與蒸發器(qi)互相轉(zhuan)換。