单压吸收式Einstein循环制冷机中气泡泵的性能分析  

Performance of Bubble Pump in Single-pressure Einstein Absorption Refrigerator

作　　者：汤成伟[1] 刘道平[1] 祁影霞[1] 王汝金[1] 

机构地区：[1]上海理工大学制冷技术研究所,上海200093

出　　处：《制冷学报》2009年第3期35-39,共5页Journal of Refrigeration

基　　金：上海市重点学科建设项目(T0503)资助~~

摘　　要：单压吸收式Einstein循环制冷机中的细管径气泡泵是系统的主要驱动装置,作用在于提升发生器内的稀氨水工质至高位贮液器;气泡泵的最佳运行状态不是由提升管高度决定的,而是在很大程度上取决于沉浸比和泵管的内径尺寸参数。所以针对气泡泵的研究概况,工作原理以及在Einstein制冷循环中的运行机理做了简单的介绍,并根据气液两相流压降理论得出了固定提升效率下气泡泵内径、沉浸比和外部加热功率三者的性能关系曲线,为气泡泵的设计提供了数据参照。A small diameter bubble pump is the main driving device in a single-pressure Einstein absorption refrigerator and its function is to lift the weak ammonia solution to the high reservoir in the generator. The best operation performance of the bubble pump is not determined by the riser height and depends on the immersion ratio and the diameter of the pump pipe. In this paper, the research progress of the bubble pump, its working principle, and its operation mechanism in the Einstein refrigeration cycle are briefly described. The performance relations between the inner diameter of the bubble pump, immersion ratio and external heating power at a certain lifting efficiency are obtained on the basis of the theory of pressure drop for gas-liquid two-phase flow.

关 键 词：工程热物理 Einstein循环 吸收制冷 气泡泵:性能分析 

分 类 号：TB616[一般工业技术—制冷工程] TB712