• 一般工业技术 •

### 板式换热器内两相流流量分配的模拟及实验验证

1. （1.上海电气电站工程公司， 上海 201199； 2.上海交通大学 制冷与低温工程研究所， 上海 200240；3.丹佛斯换热器中国研发中心， 浙江 嘉兴 314300）

• 收稿日期:2013-09-29 出版日期:2014-06-30 发布日期:2014-06-30

### Simulation and Experimental Validation of Two-Phase Flow Distribution in Plate Heat Exchanger

ZHANG Ruxu1，HU Haitao2，ZHUANG Dawei2，DING Guoliang2，XIANG Liang3，WEI Wenjian3

1. (1.Shanghai Electric Power Generation Engineering Company, Shanghai 201199， China;2.Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University, Shanghai 200240, China;3.Danfoss Heat Exchanger China Research and Dvelopment Center, Jiaxing 314300, Zhejiang, China)

• Received:2013-09-29 Online:2014-06-30 Published:2014-06-30

Abstract:

A mathematic model was developed in this paper to predict the two-phase flow distribution characteristics in a plate heat exchanger. The submodels of the pressure drops in both the channel and the distributor were established based on pressure balance equations. The submodels of both the phase split in distributor and the liquid film distribution in the inlet of distributor were established based on phase separation equations. The algorithm of the mathematical model was developed by interatively solving the pressure drop balance equations and the phase separation equations respectively. The predictions of the model were compared with the experimental data. The relative errors of pressure drop between mathematic model and experimental data are within ±20%. The relative errors of two-phase region height between mathematic model and experimental data are within ±13%.