地下厂房通风竖井方案数值模拟分析  

Simulation analysis of underground plant shaft ventilation

作　　者：肖翌均 余澜轩 李汉臣[1] 王文俊 李沛 韩念宝 XIAO Yijun;YU Lanxuan;LI Hanchen;WANG Wenjun;LI Pei;HAN Nianbao(Sinohydro Bureau 7 Co.,Ltd.,Chengdu 610213,Sichuan,China;State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China)

机构地区：[1]中国水利水电第七工程局有限公司,四川成都610213 [2]天津大学水利工程仿真与安全国家重点实验室,天津300072

出　　处：《水利水电技术(中英文)》2024年第S2期397-401,共5页Water Resources and Hydropower Engineering

摘　　要：水电站地下厂房具有工程规模大、洞室结构复杂、钻爆产尘量大等特点,导致地下厂房的通风难度系数高、通风死角多,通风竖井布置方案的确定也更为复杂。针对我国中部某抽水蓄能电站工程地下厂房系统在初设通风方案下存在颗粒粉尘等污染物难以排除、通风效果不佳等问题,提出新增竖井通风方案;并基于计算流体力学理论和Euler-Lagrange两相流数值模拟方法,进行新增竖井方案下的通风数值模拟分析,获得风流场分布和粉尘运移规律。与初设通风方案相比,新增竖井通风方案能够充分利用新增厂房竖井的自然通风效果,通风达标时间大幅度降低,满足规范要求。研究成果对于类似工程建设具有重要的现实意义。The underground workshop of the hydropower station has the characteristics of large engineering scale,complex cave structure,and large dust production from drilling and explosion.As a result,the ventilation difficulty coefficient of the underground workshop is high,there are many ventilation dead angles,and the determination of the ventilation shaft layout scheme is more complicated.In view of the problems such as difficult removal of pollutants such as particulate dust and poor ventilation effect in the underground workshop system of a pumped storage power station project in central China,a new shaft ventilation scheme was proposed.Based on the computational fluid dynamics theory and the Euler-Lagrange two-phase flow numerical simulation method,the numerical simulation analysis of ventilation under the new shaft scheme was carried out to obtain the wind flow field distribution and dust transport law.Compared with the initial ventilation scheme,the new shaft ventilation scheme can make full use of the natural ventilation effect of the new plant shaft,and the ventilation compliance time is greatly reduced to meet the requirements of the specification.This study has important practical significance for similar engineering construction.

关 键 词：数值模拟 地下厂房 竖井布置方案 EULER-LAGRANGE 通风效果 

分 类 号：TV213.4[水利工程—水文学及水资源]