1) natural ventilation pressure
自然风压
1.
Study on influence of mine natural ventilation pressure to stability of mine ventilation network;
自然风压对矿井通风网络稳定性影响的研究
2.
Natural Ventilation pressure of underground working is counted with changeful process of gas,it is accurate over traditional methods,based on shaft of entry and shaft mouth be same height,new method of according with the actual situation is raised to natual ventilation pressure problem measuring natural ventilation pressure is raised according to network theroy.
按气体多变过程计算地下工程自然风压的方法 ,较按等容过程及等温过程计算的传统方法简便精确 ,对于平巷和井口在同一标高的井筒的自然通风问题 ,提出了较为符合实际的新见解 ,给出了依据网络理论测定自然风压的方
3.
At the same time,four ventilation plans are brought forward according practical situations of this project and simulated considering such two situations as air natural distribution and control air distribution,then the effects of natural ventilation pressure on operating ventilation of tunnel are studied.
运用通风网络理论对317国道鹧鸪山隧道的运营通风方案进行了优化研究,根据工程实际情况,提出四种运营通风方案,按自然分风和控制分风两种情况进行模拟分析,并研究了自然风压对隧道运营通风的影响。
2) Natural wind pressure
自然风压
1.
Changing regulation and influence of natural wind pressure on ventilation system of mine;
自然风压变化规律及其对矿井通风系统的影响
2.
Influence of natural wind pressure on mine ventilation system;
自然风压对矿井通风系统的影响
3.
Through determining natural ventilation quantity,calcelating natural wind pressure and wind resistnace value the ventilation with natural wind has been used in Dongzhaokou field of Zhaokou branch mine of Jinling iron mine.
对金岭铁矿召口分矿东召口矿区的自然通风量进行测定 ,计算自然风压及风阻值 ,从而利用自然风进行通风 ,不仅保证了井下作业所需风量 ,而且节约主扇用电费用 3。
3) spontaneous ventilation pressure
自然风压
1.
It has been carried out survey and measurement on the current ventilation system, by using MVSS to profoundly analyse XingHua mine ventilation system, which included the analysis of scatter of blowing rate and windage at maximal resistance route branch and the scatter of blowing rate and windage under spontaneous ventilation pressure as well as the effects of the windage’s alter to .
本文简述了对杏花煤矿通风系统进行分析和改造的意义,对现有通风系统进行了现场调查和较全面的测定,利用矿井通风仿真系统(MVSS)对杏花煤矿通风系统进行全面的分析,包括最大阻力路线分支的风量及风阻分布分析、自然风压作用下最大阻力路线分支风量分布分析、风阻变化对总阻力及风量影响分析等多个方面。
4) natural ventilating pressure
自然风压
1.
Based on data measured in mine,studied the relation between natural ventilating pressure and average atmospheric temperature difference in the path of inlet air flow and return air flow,founded the formula on how to calculate natural ventilating pressure.
以矿井实测数据为基础，研究了自然风压与入、回风流平均气温差的关系，建立了新的自然风压计算公式。
2.
It is necessory to take into account the effect of natural ventilating pressure whether for the resolution of ventilation network or the stability analy-sis of ventilation svstem.
无论是解算通风网路还是进行通风系统稳定性分析，都必须考虑自然风压的影响。
5) tunnel natural wind pressure
巷道自然风压
6) thermal natural ventilation
热压自然通风
1.
In this paper,for civil buildings with double heating sources and invariable indoor remaining heat,flow field of thermal natural ventilation was simulated under the conditions of different distances between two sources with the technique of CFD.
本文首先对具有双热源的民用建筑采用CFD技术,在室内余热量不变的条件下,改变双热源间距对热压自然通风流场进行了数值模拟。
2.
In thermal natural ventilation,buoyancy plumes derived from heating source make the thermal stratification indoors.
热压自然通风中,热源产生的浮力羽流使得室内存在热分层现象。
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