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隧道建设(中英文) ›› 2019, Vol. 39 ›› Issue (9): 1423-1430.DOI: 10.3973/j.issn.2096-4498.2019.09.005

• 研究与探索 • 上一篇    下一篇

管线敷设与风机室布置对综合管廊通风阻力影响研究

闵绚1, 张正维2, *, 邹建明3, 万磊1, HATAYSAL Ertan4, 赵丽博5   

  1. (1. 中国电力科学研究院有限公司, 湖北武汉 430074; 2. 奥雅纳工程咨询(上海)有限公司, 上海 200031; 3. 国家电网公司华中分部, 湖北武汉 430077; 4. Ove Arup & Partners International Limited, 伦敦 B908AE;5. 中国电力工程顾问集团中南电力设计院有限公司, 湖北武汉 430000)
  • 收稿日期:2018-10-24 出版日期:2019-09-20 发布日期:2019-09-25
  • 作者简介:闵绚(1984—) ,女,湖北武汉人,2010年毕业于武汉理工大学,控制理论与工程专业,硕士,高级工程师,现从事输变电运行维护技术研究工作。Email: minxuan@epri.sgcc.com.cn。* 通信作者: 张正维, Email: zhengwei.zhang@arup.com。

Influence of Pipeline Laying and Fan Room Arrangement on Ventilation Resistance of Utility Tunnel

MIN Xuan1, ZHANG Zhengwei2, *, ZOU Jianming3, WAN Lei1, HATAYSAL Ertan4, ZHAO Libo5   

  1. (1. China Electric Power Research Institute Co., Ltd., Wuhan 430074, Hubei, China; 2. Arup International Consultants (Shanghai) Co., Ltd., Shanghai 200031, China; 3. Central China Power Grid Corp. Branch, Wuhan 430077, Hubei, China; 4. Ove Arup & Partners International Limited, London B908AE, UK; 5. Central Southern China ElectricPower Design Institute Co., Ltd. of China Power Engineering Consulting Group, Wuhan 430000, Hubei, China)
  • Received:2018-10-24 Online:2019-09-20 Published:2019-09-25

摘要:

为准确估算管线敷设与风机室内气流相互作用对压降损失的影响,基于武汉市江夏区谭鑫培路地下综合管廊项目建立典型数值分析模型与分析流程。通过建立典型管线布置的GIL舱、高压舱与综合舱的计算流体动力学三维模型,分别对入口段与稳定段进行分析,并使用循环边界条件来考虑稳定段流体的充分发展,得到阻力系数随流量的变化规律;通过建立GIL舱典型排风口三维模型,分析风机室中不同风机的压降损失,并与规范估算值进行比较。研究结果表明: 管线敷设对压降损失的影响不可忽视;风机室风机相互作用显著,规范不能准确估算该相互作用导致的压降损失。

关键词: 综合管廊, GIL舱, 高压舱, 综合舱, 阻力系数, 计算流体动力学, 三维模型

Abstract:

In order to accurately estimate the influence of the interaction between pipeline laying and indoor air flow of the fan on the pressure drop loss, typical numerical analysis models and analysis workflow are established based on the underground utility tunnel project of Tanxinpei Road in Jiangxia District of Wuhan City. The inlet section and the stable section are analyzed respectively by establishing the 3D computational fluid dynamics(CFD) models of GIL cabin, highvoltage cabin and integrated cabin with typical pipeline layout, and the cyclic boundary conditions are used to consider the full development of the fluid in the stable section. The variation law of the resistance coefficient with different flow rates is obtained. The 3D model of typical exhaust vent of the GIL cabin is established, and the pressure drop losses of different fans in the fan chamber are analyzed and compared with the main normative estimates. The results show that: (1) The influence of pipeline layout on the pressure drop loss cannot be ignored. (2) The interaction of fans in the chamber is significant, and based on which the standards cannot accurately estimate the pressure drop loss.

Key words: unity tunnel, GIL cabin, highvoltage cabin, integrated cabin, resistance coefficient, computational fluid dynamics(CFD), 3D model

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