1) fire pressure
火风压
1.
Research on fire pressure in fire district in road tunnel fire;
公路隧道火灾中火区火风压研究
2.
The scopes of the research involve: a) the behaviors of the air pressure field in tunnel fire,b) the mechanism of fire pressure,c) the influences of longitudinal forced ventilation velocity,fire load,slope gradient of tunnel and the length of smoke propagation on fire pressure,and d) the impact of fire pressure on tunnel ventilation.
借助大比例火灾模型试验,研究了火灾工况下隧道内压力场的发展变化状态及火风压产生的机理,分析了通风速度、火灾规模、隧道坡度和烟流蔓延长度等对火风压的影响规律,以及火灾对隧道通风系统的影响。
3.
In this paper, a set of mathematical formulae for calculation of fire pressure and smog velocity (critical velocity) in highway tunnels has been developed, which is deduced from fluid dynamics and thermodynamics.
根据流体力学和热力学原理,提出了公路隧道火风压及烟流速度(临界速度)的数学计算模型。
2) fire ventilation pressure
火风压
1.
The reasons of the fire ventilation pressure causation,the degree of the harmness and the approximate calculation of the fire ventilation pressure when fire disaster happened in coal mine are exp ounded so as to get forecast result and deal fire disaster in step.
阐述了在矿井发生火灾时 ,对火风压产生的原因、危害程度以及对火风压的近似性计算 ,使之得到可预测性的结果 ,从而使人们有步骤地进行火灾的事故处
3) banked fire
压火
1.
Characteristic analysis of banked fire for 300 MW CFB boilers;
300MW循环流化床锅炉机组压火的特性分析
2.
The operating methods of banked fire and hot start-up for 300 MW CFB boiler was introduced,and the points for attention during the operating process were indicated.
介绍300 MW循环流化床锅炉压火、热启动过程的操作方法,指出操作过程中应注意的事项。
4) banked fire
闷火，压火
5) blast pressure
风压
1.
The variation laws of blast volume,blast pressure,recarburizing rate and silicon loss were studied during the melting process of 5 t cold blast cupola.
研究了5t冷风冲天炉熔炼过程中,风量、风压、增碳率和硅烧损率随熔炼时间的变化规律。
6) air pressure
风压
1.
On principle of coal powder conveying system, the amount of carried gas and the duct configuration parameters and its optimization were analyzed on emphasis as well as the coal conveying ratio,air speed,air pressure etc.
在介绍了煤粉输送系统的原理的基础上,重点分析了输送用气量和管道配置参数及其优化;煤粉输送率、风速、风压等基本参数及其优化。
2.
The spring couplings are reformed and the air quantity are increased from 350～370m\+3/min to 385～405m\+3/min,exit air pressure is increased from 0.
为此 ,对风机进行了改造 ,采取了更换风机转子 ,提高主风量 ;重新设计轴瓦补偿圈 ,调整叶轮与隔板之间的间隙 ;改造弹性联轴器等措施 ,使风量由 3 5 0～ 3 70 m3/min提高到3 85～ 40 5 m3/m in,出口风压由 0 。
3.
Bases on the study of experts and scholars,this paper puts forward the path method of cross-section optimization and the optimization forecasting method of air pressure of new roads.
本文在总结了前人工作的基础上,提出了井巷断面优化的通路法及新井总风压最优化的预测方法。
补充资料：风压
风压
wind pressure
蒲福风力等级表牛 注:13~17级风力是当风速可以仪器测定时用之。fengya风压(windp找，sure)风吹过障碍物时，在垂直于风速方向上单位面积上所受到的压力。对于障碍物来说，风压是两部分作用之和:一是迎风面的“动压强”(告，2)，二是背风侧的“吸压强”(告、”。将这两部分综合起来，可求得风压的公式: ，二合‘l+c，，’式中p为风压;P为空气密度;。为风速;c为结构系数。结构系数因障碍物形状而异，平板的C值为l，圆柱形障碍物为一0.3。上式中(l+C)plZ通常称为风速系数，主要取决于结构系数和空气密度。常用的风压系数通常不考虑结构系数的作用，即为阿2，在标准大气条件下，它等于1/16。由于空气密度是气温、气压和湿度的函数，各地的风压系数变化较大。在中国，沿海地区大致为1117，内陆为ljl6，青藏高原1118~1/26。对于迎风侧不是平面的障碍物而言，因为有复杂的流体动力因素参与，实际风压与上式算出的风压有较大出人。(李世奎)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条