Simulation and Optimization of Outdoor RMU Ventilation Effect

WANG Qing; ZHU Zhengguo; JIA Zhidong; SHEN Zikui; XU Xiaoran

doi:10.13296/j.1001-1609.hva.2019.03.009

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Simulation and Optimization of Outdoor RMU Ventilation Effect

更新时间：2025-04-26

- Simulation and Optimization of Outdoor RMU Ventilation Effect
- High VoltageApparatus Vol. 55, Issue 3, Pages: 59-64(2019)
- 作者机构：
  
  1. 深圳供电局有限公司
  2. 清华大学深圳研究生院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.03.009
  CLC： TM643
- Published：2019
- 稿件说明：
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[1]汪清,朱正国,贾志东,申子魁,徐笑然.户外单元式环网柜的通风效果仿真与优化措施[J].高压电器,2019,55(03):59-64.

WANG Qing, ZHU Zhengguo, JIA Zhidong, et al. Simulation and Optimization of Outdoor RMU Ventilation Effect[J]. High voltageapparatus, 2019, 55(3): 59-64.
[1]汪清,朱正国,贾志东,申子魁,徐笑然.户外单元式环网柜的通风效果仿真与优化措施[J].高压电器,2019,55(03):59-64. DOI： 10.13296/j.1001-1609.hva.2019.03.009.

WANG Qing, ZHU Zhengguo, JIA Zhidong, et al. Simulation and Optimization of Outdoor RMU Ventilation Effect[J]. High voltageapparatus, 2019, 55(3): 59-64. DOI： 10.13296/j.1001-1609.hva.2019.03.009.

摘要

城市配电系统广泛应用的户外环网柜在湿热的南方地区易产生凝露

因凝露引发的环网柜故障时常发生。文中提出通过加强自然通风散热阻碍凝露形成

首先对现有两种共箱方式的环网柜三维建模

然后利用Ansys CFX软件对不同通风设计的环网柜内部流域进行仿真

考虑百叶窗式通风口的横向位置、纵向间距以及顶部空间高度对内部通风散热效果的影响。最后讨论了在凝露发生后

通过在顶盖下表面涂覆亲水性涂料并设计合适的倾角避免凝露坠落至电气设备

最终得出最优设计。

Abstract

The outdoor RMU

which is widely used in urban distribution system

always encounters condensation problem in hot and humid southern region. In this paper

it is proposed to prevent condensation formation by strengthening natural ventilation and heat dissipation. First

make 3 D models for RMU with two different structures.Then

use Ansys CFX to simulate the internal basin with different design in lateral and vertical spacing of vents and height of top space. A discussion is also made on how to reduce potential hazards by choosing coating and roof incli-nation when condensation has occurred inevitably in extreme weather. An optimized design is put forward finally.

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Related Institution

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