本文選題：空氣源熱泵 + 補(bǔ)氣�。� 參考：《化工學(xué)報》2017年09期

【摘要】：利用中間補(bǔ)氣技術(shù)將單缸滾動轉(zhuǎn)子式壓縮機(jī)應(yīng)用于空氣源熱泵系統(tǒng)中,系統(tǒng)地研究以R410A為冷媒的熱泵系統(tǒng)在變頻、變補(bǔ)氣壓力工況下制熱性能的變化規(guī)律。實驗結(jié)果表明:中間補(bǔ)氣系統(tǒng)的制熱量及系統(tǒng)功率均隨著壓縮機(jī)頻率f、中間補(bǔ)氣壓力pinj的增加呈上升趨勢,同頻率下系統(tǒng)功率則以線性方式增長,而系統(tǒng)制熱量隨著補(bǔ)氣壓力及頻率的增大,其相對增長率逐漸減小。因此COPh在低頻時存在最佳補(bǔ)氣壓力,而在高頻時無極值點;與單級壓縮系統(tǒng)相比,在800~1200 k Pa、50~80 Hz范圍內(nèi),中間補(bǔ)氣系統(tǒng)的制熱量、功率、COPh最大提升分別為27.55%、30.75%、7.1%。隨著頻率及補(bǔ)氣壓力的增加,系統(tǒng)COPh下降,因此中間補(bǔ)氣技術(shù)應(yīng)與合理的控制策略相結(jié)合,可使中間補(bǔ)氣系統(tǒng)達(dá)到節(jié)能高效的目的。
[Abstract]:The single cylinder rolling rotor compressor is applied to the air source heat pump system by using the intermediate gas supply technology. The variation of the heating performance of the heat pump system with R410A as the refrigerant under the condition of variable frequency and variable supply pressure is systematically studied. The experimental results show that the heating capacity and system power of the intermediate gas supply system increase with the compressor frequency f, and the pinj of the intermediate air supply pressure increases linearly at the same frequency, and the system power increases linearly at the same frequency. With the increase of gas supply pressure and frequency, the relative growth rate of the heating capacity of the system decreases gradually. Compared with the single-stage compression system, the heating capacity and power of the intermediate gas supply system are 27.55 and 30.75 / 7.1in the range of 800 ~ 1200kPa ~ (5080) Hz, respectively, and the maximum increase of the heating capacity of the system is 27.55 ~ (30. 75) ~ (7. 1) in comparison with the single stage compression system, the maximum heating capacity and the maximum power of the gas supply system are 27. 55% and 30. 75% and 7. 1 Hz, respectively. With the increase of frequency and gas supply pressure, the COPh of the system decreases. Therefore, the intermediate gas supply technology should be combined with reasonable control strategy to achieve the purpose of energy saving and high efficiency.
【作者單位】： 中國科學(xué)院廣州能源研究所;中國科學(xué)院可再生能源重點實驗室;廣東省新能源和可再生能源研究開發(fā)與應(yīng)用重點實驗室;中國科學(xué)院大學(xué);
【基金】：中國南方智谷引進(jìn)創(chuàng)新團(tuán)隊(順府辦函[2014]365號) 廣東省中國科學(xué)院全面戰(zhàn)略合作專項項目(2013B091500042) 2017年廣州市產(chǎn)學(xué)研協(xié)同創(chuàng)新重大專項項目(201604016048,201604016069)~~
【分類號】：TU83

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本文編號：1975362