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为了拓宽气泡泵研究领域和应用范围,解决气泡泵效率低,未有效利用低品位能源等问题,提出了一种新型的连续渐缩式变截面管(内径从11 mm渐变至8 mm)气泡泵装置,并对其提升性能进行实验分析。以常压100℃水为工质,研究不同加热功率,浸没比对液体提升率的影响,并与内径为10、9 mm的直管气泡泵提升性能进行对比分析。结果表明:在加热功率为200-650 W,沉浸比为0.4时,变截面管气泡泵提升率最高可提高8.2%,说明变截面管气泡泵具有较高提升优势,且该加热功率相对较低,可充分与低品位热源衔接,对扩大能源的利用范围及单压制冷机性能的提高具有重要意义。
In order to broaden the research field and application range of bubble pumps, and to solve the problems of low efficiency of bubble pumps and inefficient use of low-grade energy sources, a new type of continuous tapered tapered pipe (gradual change of diameter from 11 mm to 8 mm) Device, and to enhance its performance for experimental analysis. The effects of different heating power and immersion ratio on the rate of liquid lift were studied with normal pressure 100 ℃ water as working fluid, and compared with that of straight tube bubble pump with inner diameter of 10,9 mm. The results show that when the heating power is 200-650 W and the immersion ratio is 0.4, the improvement rate of the variable section tube bubble pump can be increased by 8.2%, which shows that the variable section tube bubble pump has a higher promotion advantage and the heating power is relatively lower , Which can be fully connected with the low-grade heat source. It is of great significance to expand the utilization of energy and improve the performance of the single-pressure refrigerator.