沉浸比对均流式多管导流型气泡泵性能的影响  

Influence of Different Immersion Ratios on the Performance of Guided Bubble Pump with Current Equalizer and Multiple Tubes

作　　者：杨林强 刘道平 杨亮 朱发明 Yang Linqiang;Liu Daoping;Yang Liang;Zhu Faming(Institute of New Energy Science and Engineering,School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai,200093,China)

机构地区：[1]上海理工大学能源与动力工程学院新能源科学与工程研究所,上海200093

出　　处：《制冷学报》2019年第1期51-57,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)资助~~

摘　　要：气泡泵液体提升性能直接影响单压吸收式制冷系统的制冷性能。本文以带均流器的多管导流型气泡泵为研究对象,以水为工质,研究了不同加热功率下提升管沉浸比变化对气泡泵提升性能的影响。结果表明:在气泡泵开机运行较短时间内,随着沉浸比的提高,气泡泵总液体提升量逐渐减小,与加热功率为1 450 W、沉浸比为0.5时相比,当加热功率为1 250 W、沉浸比为0.3时,气泡泵总液体提升量提高3.04 kg;在长时间运行工况下,增加沉浸比能显著提高气泡泵提升性能。对于多管导流式气泡泵,增加均流器能有效优化气泡泵运行状况,提高气泡泵总液体提升量,并增大气泡泵提升效率。The performance of a bubble pump directly influences the performance of a single-pressure absorption refrigeration cycle.On the basis of a guided bubble pump with a current equalizer and multiple tubes,this research was focused on analyzing the influence of different immersion ratios on the bubble pump performance under different heating power,which used water as a working fluid.According to the experimental results,when the bubble pump operated for a short time from starting,the total lifting capacity decreased with the increase in the immersion ratio.For example,when the heating power and immersion ratio were 1 250 W and 0.5,respectively,the total lifting capacity was 3.04 kg heavier than that under the heating power and immersion ratio of 1 450 W and 0.5,respectively.However,the bubble pump performance under a long term working condition can be significantly improved by increasing the immersion ratio.In addition,the performance of the guided bubble pump can be effectively optimized by adding a current equalizer.The total lifting capacity and efficiency of the bubble pump can also be increased.

关 键 词：单压吸收式制冷 气泡泵 沉浸比 两相流 

分 类 号：TB616[一般工业技术—制冷工程] TB657.5