Design and Research on the Distributor of Air Conditioner by Forming Annular Flow

Zhao Dingqian; Wu Guoming; Ren Tao; Ding Guoliang; Song Ji; Wu Junhong

doi:10.3969/j.issn.0253-4339.2019.04.153

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Design and Research on the Distributor of Air Conditioner by Forming Annular Flow

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- Design and Research on the Distributor of Air Conditioner by Forming Annular Flow
- Journal of Refrigeration Vol. 40, Issue 4, (2019)
- 作者机构：
  
  1. 上海交通大学制冷与低温工程研究所
  2. 国际铜业协会,中国
  3. 空调设备及系统运行节能国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2019.04.153
  CLC：
- Published：2019
- 稿件说明：
移动端阅览
Zhao Dingqian, Wu Guoming, Ren Tao, et al. Design and Research on the Distributor of Air Conditioner by Forming Annular Flow[J]. Journal of refrigeration, 2019, 40(4).
DOI：

Zhao Dingqian, Wu Guoming, Ren Tao, et al. Design and Research on the Distributor of Air Conditioner by Forming Annular Flow[J]. Journal of refrigeration, 2019, 40(4). DOI： 10.3969/j.issn.0253-4339.2019.04.153.

摘要

为解决空调器中多流路换热器内制冷剂分配不均的问题，本文设计了一种能够均匀分配两相制冷剂的新型分流器样件并进行了可视化实验。设计均匀分流器的基本思路是构建环状流并均匀分配环状流

具体设计方法是提出分流器进口管结构的计算方法实现环状流的构建，并通过设计新型进、出口管的连接结构实现环状流的均匀分配。实验表明：制冷剂的质量流量为14~22 g/s时，水平、倾斜和竖直安装的新型分流器的质量流量不均匀度比传统圆锥式分流器分别下降10%~24%、14%~27%和24%~47%。基于环状流整流的新型分流器的分配性能优于目前最常用的圆锥式分流器。

Abstract

To address the wrong distribution of refrigerants in multi-path heat exchangers in air conditioners

a distributor

which is capable of evenly dividing a two-phase refrigerant

is proposed and tested using a visual experiment. The principle of the distributor design is to form an annular flow and then evenly allocate it. The detailed development method includes a calculation model for inlet tube geometries of the distributor to form an annular flow and a design method for the connection structure between the inlet and outlet tubes to uniformly distribute the annular flow. The experimental results show that when the mass flow rate is between 14 and 22 g/s

the distribution unevenness values of the novel distributor at the horizontal

sloped

and vertical installations are 10%–24%

14%–27%

and 24%–47%

respectively

which are lower than those of the conventional cone-type distributor

indicating much better performance of the proposed distributor.

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Xia Yujuan

Yang Jie

Related Institution

School of Mechanical Engineering, Shanghai Jiao Tong University

Chinese National Institute of Standardization

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China National Institute Of Standardization

School of Energy & Power Engineering, Zhengzhou University of Light Industry

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