地下水电站通风网络设计与风机匹配
Ventilation network design and fan matching in underground hydropower stations
摘要：
以某巨型地下水电站为例，分析了水电站的工艺流程、设备布置及其发热量的分布情况、各部位的空气设计参数等，总结了通风网络流程设计的特点。根据通风流程，绘制了主要洞室的通风网络图，对网络结构进行了分析。依据网络回路压力平衡原理，提出了基于设置零压力节点匹配洞室群各类风机的方法，并明确了厂内可设置为零压力节点的空间场所。
Abstract：
Taking a giant underground hydropower station as an example, analyses the process-flow, equipments arrangement and heat distribution, air design parameters in each part, and summarizes the process design characteristics of ventilation network. According to the ventilation process, draws out the ventilation network diagram of the main underground excavation and analyses the structure of the network. Proposes methods of matching all kinds of fans in underground caverns based on setting nodes with zero pressure on the basis of the principle of pressure equilibrium in reticular loop, and presents those spaces which can be set as the nodes with zero pressure in the power plant.
Keywords:underground hydropower station, ventilation network, node with zero pressure, fan matching, pressure balance