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空氣能熱泵系統的水系統穩定性設計

發(fa)布者(zhe): 奧伯特烘干  時間:2021-3-25 14:01:14

     在(zai)配(pei)置定速壓(ya)(ya)縮機(ji)(ji)(ji)(ji)(ji)的(de)空(kong)(kong)(kong)氣(qi)源熱(re)泵(beng)冷熱(re)水(shui)空(kong)(kong)(kong)調(diao)(diao)(diao)系(xi)統(tong)(tong)中,如果空(kong)(kong)(kong)調(diao)(diao)(diao)系(xi)統(tong)(tong)的(de)水(shui)容量(liang)較(jiao)小,就(jiu)會出(chu)現空(kong)(kong)(kong)調(diao)(diao)(diao)水(shui)系(xi)統(tong)(tong)的(de)熱(re)穩定性問(wen)題。熱(re)泵(beng)機(ji)(ji)(ji)(ji)(ji)組的(de)能量(liang)調(diao)(diao)(diao)節一般是(shi)根據室內溫(wen)度的(de)變化,通過起(qi)停壓(ya)(ya)縮機(ji)(ji)(ji)(ji)(ji)來(lai)實現的(de)。在(zai)部分負荷下,壓(ya)(ya)縮機(ji)(ji)(ji)(ji)(ji)運行很短時間空(kong)(kong)(kong)調(diao)(diao)(diao)系(xi)統(tong)(tong)水(shui)溫(wen)就(jiu)會達到設定溫(wen)度,此(ci)時壓(ya)(ya)縮機(ji)(ji)(ji)(ji)(ji)停機(ji)(ji)(ji)(ji)(ji);當(dang)水系(xi)(xi)統(tong)容(rong)(rong)量較小時(shi),在很短時(shi)間(jian)內空調系(xi)(xi)統(tong)水溫(wen)就會超出設定(ding)溫(wen)度(du),壓(ya)(ya)縮機(ji)(ji)又必須起(qi)(qi)動(dong)。從而造成壓(ya)(ya)縮機(ji)(ji)頻(pin)繁起(qi)(qi)停(ting),既增加了(le)系(xi)(xi)統(tong)功(gong)耗又降低了(le)主(zhu)機(ji)(ji)使用壽(shou)命。水系(xi)(xi)統(tong)容(rong)(rong)量較小還會造成冬季(ji)除霜時(shi)系(xi)(xi)統(tong)水溫(wen)下降過(guo)(guo)大,形成吹冷風的(de)現象。雖(sui)然(ran)由變容(rong)(rong)量壓(ya)(ya)縮機(ji)(ji)和(he)定(ding)速壓(ya)(ya)縮機(ji)(ji)組合的(de)熱泵機(ji)(ji)組能自(zi)動(dong)與室內負荷相匹配(pei),但(dan)如果水系(xi)(xi)統(tong)容(rong)(rong)量過(guo)(guo)小,在變容(rong)(rong)壓(ya)(ya)縮機(ji)(ji)和(he)定(ding)速壓(ya)(ya)縮機(ji)(ji)銜接的(de)負荷盲區也會造成定(ding)速壓(ya)(ya)縮機(ji)(ji)的(de)頻(pin)繁起(qi)(qi)停(ting)。




水系(xi)統(tong)(tong)的容量(liang)越(yue)小(xiao),則系(xi)統(tong)(tong)的熱(re)穩(wen)定性越(yue)差(cha),反之,系(xi)統(tong)(tong)的熱(re)穩(wen)定性越(yue)好。因此,水系(xi)統(tong)(tong)設計(ji)時(shi)(shi)(shi),應(ying)該校對計(ji)算(suan)系(xi)統(tong)(tong)水容量(liang)是(shi)否滿(man)足系(xi)統(tong)(tong)熱(re)穩(wen)定性要求。當系(xi)統(tong)(tong)水容量(liang)不能滿(man)足要求時(shi)(shi)(shi),應(ying)增設蓄能循環水箱,或加(jia)大供、回(hui)水溫(wen)差(cha)的設定值。蓄能循環水箱不能過(guo)于龐大,系(xi)統(tong)(tong)水容量(liang)過(guo)大會影響開機時(shi)(shi)(shi)的空調效果(guo)。

冬季進、出熱泵的熱水參數(shu)宜設為40C459C,以(yi)保證較高(gao)的能效比。水系統的輔助(zhu)熱源應設置在熱泵機組的出(chu)水口,以(yi)此來提高(gao)循環(huan)水溫度。


文章整理(li); 空氣熱(re)泵烘(hong)干機(ji)    rtdjtsr.cn






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