均流式多管导流型气泡泵提升性能实验研究  

Experimental Research on Improving Performance of Guided Bubble Pump with Multiple Tubes with Current Equalizer

作　　者：朱发明 刘道平[2] 杨亮[2] 马汉 Zhu Faming;Liu Daoping;Yang Liang;Ma Han(Enn Energy Services（Shanghai）Co.Ltd.,Shanghai,200433,China;School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai,200093,China)

机构地区：[1]新奥能源服务(上海)有限公司,上海200433 [2]上海理工大学能源与动力工程学院,上海200093

出　　处：《制冷学报》2018年第6期84-90,共7页Journal of Refrigeration

基　　金：国家自然科学基金(51606125)资助项目;上海市教育委员会科研创新项目(13ZZ117)~~

摘　　要：本文为改善多管导流型气泡泵工作过程中气泡分配不均,提高Einstern制冷循环的性能,在大气压下以饱和水为工质,通过改变提升管数量,对比研究了普通多管导流型气泡泵及均流式多管导流型气泡泵的提升性能。结果表明:在气泡泵提升过程中,低功率下气泡泵液体总提升量增加幅度在较大和平缓现象之间不停的交替出现,但在高功率下气泡泵液体总提升量增加幅度较缓的过程所持续的时间越来越短。如管数量为3根,管径为10 mm,沉浸比为0.5,加热功率为450 W时,运行75.2 min时出水管开始有水流出,在75.2～100.1 min时,液体总提升量增加幅度在较大和平缓现象之间不停的交替出现。在添加均流器工况下,随着管数量倍增,气泡分配不均问题得以改善,如管径为10 mm,沉浸比为0.4,管数量为1根时,普通多管导流型气泡泵最大提升速率为15.00 g/s;管数量为3根时,最大提升速率为26.50 g/s;有均流器下,管数量为3根时,最大提升速率为36.50 g/s。因此,均流器网孔的孔径和安装位置对气泡泵的提升性能有一定影响。In order to improve uneven distribution of the bubbles in the guided bubble pump with multiple tubes in a working process, and enhance the performance of Einstein refrigeration, the performance of an ordinary guided bubble pump with multiple tubes and guided bubble pump with multiple tubes with current equalizer is compared. The experiment is conducted at atmospheric pressure with water as the working fluid, and the number of tubes in guided bubble pump is varied. Experimental results shout that in the lifting process of the bubble pump the total liquid lifting capacity increases in amplitude tor lwo kinds of bubble pumps, and large improvement and little im- provement appear alternately under lout pouter. However, the elapsed time tor little improvement of total liquid lifting capacity is decreased tor a bubble pump under high pouter. When tube number is 3, the diameter is 10 mm with an immersion ratio of 0. 5, and a heating power of 450 W, water begins to exit from the outlet tube after 75.2 min. The total lifting capacity between large and little improvement appear alternately from 75.2 rain to 100. 1 rain. In addition, the problem of uneven distribution of the bubbles is improved by the tube number multiplication with a cun＇ent equalizer, such as a diameter of 10 mm and immersion ratio of 0.4. When tube number is 1, the maximmn liquid lifting capacity rate is 15.00 g/s in an ordinary guided bubble pump with multiple tubes ; when the tube number is 3, maximum liq- uid lifting capacity rate is 26. 50 g/s tor the ordinau, but 36. 50 g/s tor that with current equalizer. Finally, mesh aperlure and installa- lion position of current equalizer are found to have a certain influence on the improvement of bubble pump performance.

关 键 词：Einstein制冷 气泡泵 均流器 实验研究 

分 类 号：TB616[一般工业技术—制冷工程] TB657.5