通风服通风组件流率分配的测量与估算  

Mcosurement and Estimation of Flow Distribution of Air Allocated Module in Air Ventilat-ed Suit

作　　者：虞学军[1] 武建民[1] 徐国林[1] 王宪章[1] 

机构地区：[1]北京航天医学工程研究所

出　　处：《航天医学与医学工程》1996年第5期369-372,共4页Space Medicine & Medical Engineering

摘　　要：为测量通风服通风组件的流率分配，结果显示：通风组件在常用的稳定流率（１００～１６０Ｌ／ｍｉｎ）工作状态下，头部、上肢、下肢的流率分配比均稳定在３５％，３５％，３０％左右．但流率波动较大或供气不足时，不具备这一稳定的流率分配比．实验使用的测量方法简单可靠，并建立了一种通过测量流阻估算各部分的流率及流率分配的简单方法，流率分配的测量结果与相应的计算结果相差不超过２％．Flow distribution(FD)of an air allocated module in air ventilated suit was mea-sured and calculated.The results indicate that the medule's FD to head,arms,and legs are 35%,35%,30% respectively under normally used steady air flow(100～160 L/min).There was no stable FD when the flow fluctuated or air supply to the module was insufficient.The method used in this work is simple and reliable and an algorithm for esti-mating the FD by measuring flow resistance was established.The error of calculated FD is less than 2% comparing with the measured FD.

关 键 词：通风服 流率分配 流动阻力 

分 类 号：R852.81[医药卫生—航空、航天与航海医学]