多人受限水下住室气流组织实验评价研究

发布时间：2018-05-05 01:17

本文选题：气流组织 + 空气质量　；参考：《环境科学与技术》2015年S2期

【摘要】：气流组织的任务是合理组织有限空间内空气的流动,使空气温度、湿度、流速、成分等能更好地符合人体的舒适感并满足卫生要求。水下密闭住室环境较常规民用建筑环境更为严酷,狭小受限空间内人员密度较大,因此非常有必要精细规划该类住室的气流组织。该文在建立的水下密闭住室实验平台上,采用基于绿激光的流场显示技术,开展2类送风模式下的多人受限住室气流组织实验评价研究。2类送风模式分别为圆形布风器送风模式和个体布风器送风模式。基于流动显示技术的气流组织实验评价结果表明:(1)圆形布风器送风送风模式,管道布置较为简单,但住室内3层床铺所得新风量的均匀性较差,上铺新风量较大,利于二氧化碳清除快速清除,但人体容易产生吹风感;下铺新风量极少,空气流动性差,人体呼出二氧化碳产生积聚,且易出现闷热感。(2)个体布风器送风模式,送风管道布置较复杂,住室内3层床铺所得新风量的均匀性好,人体呼出二氧化碳的扩散性好,由于送风口与人体距离较近,人体易产生内侧体的吹风感。由上述实验研究可知:如能合理规划管道布置及送风方案,个体布风器送风模式是一种高效的送风模式。该文研究对于该类多人受限水下住室气流组织设计具有指导意义。
[Abstract]:The task of airflow organization is to organize the flow of air in a limited space reasonably, so that the air temperature, humidity, velocity and composition can better meet the comfort of the human body and meet the health requirements. The environment of the underwater closed room is more severe than that of the conventional civil building, and the density of the persons in the confined space is large. Therefore, it is necessary to plan the airflow organization of this kind of living room. In this paper, the flow field display technology based on green laser is adopted on the experimental platform of underwater closed chamber. An experimental study on the airflow organization of a multi-person confined chamber under two types of air supply modes is carried out. The two types of air supply modes are circular air distributor supply mode and individual air distributor supply mode, respectively. The experimental results of airflow organization based on flow display technology show that the air distribution mode of circular air distributor is relatively simple, but the uniformity of fresh air flow from the bed on the third floor of the room is poor, and the fresh air volume of the upper bunk is relatively large. It is conducive to the rapid removal of carbon dioxide, but the human body is prone to develop a sense of blowing; the lower level of fresh air is very small, the air fluidity is poor, the body exhales carbon dioxide and accumulates carbon dioxide, and it is easy to appear a sultry sensation. The arrangement of air supply pipe is more complicated, the uniformity of fresh air volume is good, the diffusion of carbon dioxide out of human body is good, and the air blowing feeling of the inside body is easy to be produced because of the distance between the air outlet and the human body. The experimental results show that, if the pipeline layout and air supply scheme can be reasonably planned, the air supply mode of individual air distributor is an efficient air supply mode. This paper is of guiding significance for the design of airflow organization in this kind of multi-person confined underwater living room.
【作者单位】：海司军训部;中国舰船研究设计中心;北京航空航天大学航空科学与工程学院;
【分类号】：TU962

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