摘要
Abstract
In order to improve the process environment of underground WWTP,which is more energy saving and reasonable,and help to reduce the pipeline and space occupying,a new design method combining ventilation system and deodorization system is adopted in an underground WWTP project in Gansu Province.According to the main and secondary sources of odor,air supply and odor absorption points are designed to achieve different negative pressure levels in the region and prevent odor spillovers,including the calculation of deodorizing air volume,the determination of air supply and exhaust volume,the reasonable value of air exchange times,the design of air flow organization form,etc.,to achieve the coordination of ventilation and deodorizing two sets of systems,so as to ensure the comfortable environment of each underground space.The ventilation system also considers special rooms,such as dosing rooms,etc.,according to the gas characteristics of special gases produced in the process reaction,sets different high and low air supply and exhaust levels,and selects the corresponding number of air exchanges to determine the air volume.Ventilation is provided in rooms designed to extinguish gas fires,such as power distribution rooms,for normal ventilation and ventilation after accidents.关键词
地下式污水处理厂/除臭收集系统/通风系统/换气次数/气流组织形式Key words
underground WWTP/deodorant collection system/ventilation system/determination of air change frequency/air distribution form分类
建筑与水利
