大型地下洞室群通风实时解算联调方法  

Ventilation real-time calculation and coordinated adjustment method for large underground powerhouse

作　　者：安瑞楠 林鹏[1,3] 王鑫 李子昌 刘元广 何品杰 AN Ruinan;LIN Peng;WANG Xin;LI Zichang;LIU Yuanguang;HE Pinjie(Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China;Rocket Force Academy,Beijing 100120,China;Sichuan Engineering Internet Research Institute Tsinghua University,Chengdu 610213,China;Sinohydro Bureau 11 Co.,Ltd.,Sanmenxia 472001,China;Sinohydro Bureau 14 Co.,Ltd.,Kunming 650041,China)

机构地区：[1]清华大学水利水电工程系,北京100084 [2]火箭军研究院,北京100120 [3]清华四川能源互联网研究院,成都610213 [4]中国水利水电第十一工程局有限公司,三门峡472001 [5]中国水利水电第十四工程局有限公司,昆明650041

出　　处：《清华大学学报(自然科学版)》2025年第3期446-454,共9页Journal of Tsinghua University(Science and Technology)

基　　金：中国水利水电第十一工程局有限公司技术开发项目(KKM-SUB-2024-008,SH-KGL-SUB-2021003);中国水利水电第十四工程局有限公司研究项目(XL-YSFD-FW-2023-006)。

摘　　要：大型地下洞室群施工期通风系统具有立体交叉复杂、多区域用风负荷存在差异和多工况调控需求动态变化等特点。为解决复杂流场空间节点提取、分支关联解耦和联调稳定等问题,该文首先提出了针对一维管束流体和三维空间流场单元结构的节点提取原则和方法,并通过虚拟分支场网耦合了求解方法;其次,节点-特性-边三元组有效反映了节点的结构、性能和行为特性,建立了以边为分析对象的通风联调超图结构,揭示了通风分支与回路的耦合联动机制,并提出了基于联调灵敏度的调阻控风优化调节方法;最后,研发了智能通风联调平台,以关联响应增阻调节为关键技术,搭配在线环境监测装置自动采集通风环境关键参数,实现通风系统的实时解算及联调功能。该文研究结果可为同类工程通风系统解算提供参考。[Objective]Intelligent ventilation on demand is crucial for ensuring environmental safety in underground caving groups and for the high-quality construction and development of hydropower projects.Ventilation systems for large underground caving groups during construction frequently exhibit complex three-dimensional layouts,different air loads across regions,and dynamic demand under varying regulation conditions.[Methods]To achieve spatial node extraction,branch correlation decoupling,and stable joint adjustment of complex flow fields,this paper examines the development characteristics of fluids under construction ventilation in extensive spatial structures.It demonstrates the necessity of constructing a graph structure based on the ventilation flow characteristics for analyzing and adjusting ventilation system parameters.The regional modeling theory is discussed,detailing the principles and methods of node extraction for one-dimensional tube bundle fluids(network)and three-dimensional spatial flow field elements(field).Among these,the area where fluid parameter information changes along the main airflow direction employs network node extraction,while the regions with multi-directional complex flow paths utilize the three-dimensional field node extraction method.Virtual branches address the network-field coupling problem,utilizing the nodal pressure approach.This method treats the nodal pressure as the unknown variable and airflow deviation as the assessment criterion.Nodes with known pressure values serve as reference nodes for solving the pressure at all network nodes,and are further assigned to field simulation boundaries.By numerically simulating the three-dimensional spatial flow field,the virtual branch air flow rates are iteratively fed back into the air network calculation for a coupled solution.This paper also introduces the node-property-edge triplet,which effectively reflects the structure,performance,and behavioral characteristics of nodes.Furthermore,to optimize the ventilation coordination efficiency

关 键 词：地下洞室群 超图结构 实时解算 联调方法 智能通风 

分 类 号：TD724[矿业工程—矿井通风与安全]