1) perforated panels
孔板风口
1.
The airflow pattern inside a "laminar flow" clean room with ventilation through perforated panels was analyzed numerically, using a specially developed inlet boundary condition for the flow through the perforated inlet panels.
为准确快速模拟孔板型风口洁净室的室内气流组织,采用既能够准确表述送风口入流质量流量、动量流量,又不改变风口外形和位置的N点风口模型来描述孔板风口的入流边界条件。
2) perforated panel air outlet
穿孔板送风口
3) vent
[英][vent] [美][vɛnt]
孔,通风口
4) small apeture orifice plate
小孔口孔板
5) perforated ceiling air supply
孔板送风
1.
The paper reports the design principle of air-conditioning of the physical testing room, mainly discusses the lab s air-conditioning load analysis having temprature and moisture pricision requirements and low speed of working zone, air treatment process, air conditioner unit selection, system facilities automatic control and describes the design principle of perforated ceiling air supply.
介绍了天津石化聚酯工程中物检室的空调设计原理 ,主要讨论了具有温度、湿度精度要求及低工作区流速 ,物检室空调负荷的分析、空气处理过程、空调机组的选型、系统设置及自动控制以及系统的气流组织形式 ,并阐述了孔板送风的设计原
补充资料:孔板
安装在封闭管道中,按节流装置的原理,测量液体、气体和蒸汽流量的检出元件。标准孔板是一块具有圆形开孔的金属薄板,圆孔壁与孔板前端面成直角,安装时孔板轴心与管道轴线同心。孔板已有国际标准(ISO 5167)。测出孔板两端压差,按此标准即可算出具有一定精确度的流量值。孔板取压方式在国际标准中规定为径距取压、法兰取压和角接取压(取压孔紧靠孔板)3种(图1)。当测量含有少量固体的液体或含有少量液体的气体时,为便于少量固体或液体通过,孔板的开孔可制成扇形的,或制成与管道的轴线是偏心的(图2)。
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参考词条