| 导流片的导流角度对其性能的影响 |
| |
| 引用本文： | 焦安军,厉彦忠,张瑞,王忠建,陈纯正. 导流片的导流角度对其性能的影响[J]. 化工学报, 2001, 52(9): 761-765 |
| |
| 作者姓名： | 焦安军 厉彦忠 张瑞 王忠建 陈纯正 |
| |
| 作者单位： | 西安交通大学低温技术研究所; 开封空分集团有限公司 |
| |
| 基金项目： | 全国首届优秀博士学位论文作者专项基金资助项目(No .199933) |
| |
| 摘 要： | 引起板翅式换热器内部物流分配不均匀的因素是多方面的 ,针对不同导流角度对导流片性能的影响进行了研究 .发现板翅式换热器内部存在着物流分配的不均匀 ,其中横向物流分配的不均匀性大于纵向物流分配的不均匀性 ;影响导流片性能的主要因素包括导流片的导流角度、Reynolds数等 ;当导流角为 45°时 ,其导流性能达到最佳 ,而总管流动阻力没有大的变化 .研究结论对板翅式换热器的优化设计具有重要意义
|
| 关 键 词： | 板翅式换热器 物流分配 导流片 优化设计 性能 导流角度 物流分配 |
| 文章编号： | 0438-1157(2001)09-0761-05 |
| 修稿时间： | 2001-02-14 |
EFFECTS OF DIFFERENT INLET ANGLES ON DISTRIBUTOR PERFORMANCE |
| |
| JIAO Anjun,LI Yanzhong,ZHANG Rui,WANG Zhongjian,CHEN Chunzheng. EFFECTS OF DIFFERENT INLET ANGLES ON DISTRIBUTOR PERFORMANCE[J]. Journal of Chemical Industry and Engineering(China), 2001, 52(9): 761-765 |
| |
| Authors: | JIAO Anjun LI Yanzhong ZHANG Rui WANG Zhongjian CHEN Chunzheng |
| |
| Abstract: | The plate-fin heat exchanger is normally designed with the assumption that the fluid is uniformly divided among all the core passages.However,the fluid flow maldistribution in plate-fin heat exchanger may be caused by many factors,such as improper entrance configuration,poor header design,manufacturing tolerance of passages and the heat transfer process itself.The objective of this paper is to study the effects of different inlet angles on the distribution performance of distributor.It is found that there is fluid flow maldistribution in plate-fin heat exchanger and the flow maldistribution in crosswise direction is more serious than that in ordinate direction.The experimental results also show that inlet angle and Reynolds number are the main factors affecting distributor performance and the distributor reaches the best performance when its inlet angle equals 45° under the experiment.The conclusions of this paper are of great significance for the optimum design of plate-fin heat exchanger. |
| |
| Keywords: | plate-fin heat exchanger flow distribution distributor optimum design |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载免费的PDF全文 |
