【摘要】 介绍了配置喷口的地铁区间隧道事故通风系统模型试验方案 ,详细说明了该试验系统的设计 ,试验方案的制订。对不同类型喷口的通风系统性能进行了试验 ,提出在相同的风量和风压下 ,椭圆喷口的通风功能和防灾能力最强 ,喷口出口风速提高有利于提高其风量效率等结论 ,为隧道事故通风系统提供了设计依据更多还原

【Abstract】 With an introduction of the model test on the nozzle-equipped emergency ventilation system for subway tunnel,this paper discusses the test system design in detail and the process of making the test program.Through tests of different nozzle-equipped emergency ventilation systems,the authors hold that,under the same condition of air volume and air pressure,the round mouth nozzle and its parameters is the best,thus provides reference for the design of emergency ventilation system.更多还原