Single screw water vapor compressor is applied in the mechanical vapor recompression heat pump (MVR) system. Analysis of the working process of the compressor is carried out. Experiments for the MVR systems with closed cycle and open cycle are performed under different evaporation temperature conditions. The results show that the volume efficiency of the compressor is larger than 0.73 and the adiabatic efficiency is larger than 0.5 when the evaporation temperature is higher than 80 ℃. The largest practical COP of the system reaches 12.5 and the highest actual SMER reaches 20 kg/(kW·h) in the present experiments. The high efficiency and energy-saving features of the MVR system driven by single screw water vapor compressor are fully shown in this study.

將單螺桿水蒸汽壓縮機(jī)應(yīng)用于機(jī)械蒸汽再壓縮熱泵(MVR)系統(tǒng),并對該壓縮機(jī)的工作過程進(jìn)行分析;在不同蒸發(fā)溫度的工況下,對采用閉式和開式循環(huán)的MVR系統(tǒng)進(jìn)行實(shí)驗(yàn)研究.實(shí)驗(yàn)結(jié)果表明,當(dāng)蒸發(fā)溫度高于80 ℃時,壓縮機(jī)的容積效率超過0.73,絕熱內(nèi)效率大于0.5;系統(tǒng)的實(shí)際COP高達(dá)12.5,實(shí)際單位能耗蒸發(fā)水量高可達(dá)20 kg/(kW·h);充分顯示了單螺桿水蒸汽壓縮機(jī)驅(qū)動MVR系統(tǒng)的高效節(jié)能特性.  服務(wù) 

關(guān)鍵詞 ： 單螺桿水蒸汽壓縮機(jī), MVR, 壓縮機(jī)效率, COP, SMER