By research of axial-flow fan characteristic distribution in high efficiency operating range,a distribution rule is discovered on the definite rotating speed and hub ratio condition,consequently condition of high efficiency operating point is easy to be found when axial-flow fan operating course is changed.
通过对轴流式通风机高效区分布特性的研究,找出了在转数和轮毂比一定的条件下其高效区域分布的规律,从而发现了通风机运行工况发生变化时高效工况点的情况,为通风机的运行平稳、安全可靠、工作效率的提高提供了理论依据。
Numerical simulation of the tri-dimensional steady turbulent flow in bi-stage axial-flow fan is performed.
将SIMPLE算法与Realizablek-ε湍流模型相结合,通过求解Navvier-Stokes方程,对两级轴流式通风机的三维定常流动进行数值模拟。
The N-S equation and Realizable κ-ε turbulent models are solved with SIMPLE method based on Fluent software for the axial-flow fan of OB-84 type.
利用Fluent软件,以OB-84型轴流通风机为对象,采用SIMPLE方法求解了N-S方程和Realizablek-ε湍流模型,对轴流式通风机的内部三维粘性流场进行了数值模拟研究,获得了设计工况下风机内部许多流动细节、规律及性能参数,并得出了结论。
According to the inlet and outlet velocity triangle of cascade,the paper approaches the reason that the bearing of two-grade fan for contra-rotating axial fan is more vulnerable than one-grade fan.
利用叶栅进口及出口速度三角形探讨了对旋轴流式通风机二级风机轴承较一级风机轴承易损的原因,并经实验和流场数值模拟得到证实,据此提出了解决的方案。
And a method is obtained in selection of an axial fan with minimum power from various type of axial fans.
在选取轴流式通风机的叶轮直径和转速时，为保证风机消耗的轴功率最小，分析了轴功率的各种影响因素，依据最小轴功率原则和风机经济工作条件，总结出从同类型轴流式通风机中，选择所耗轴功率最小的风机叶轮直径和转速的方法，即首先计算必需的叶轮直径和转速，实际选择时，再取大于必需值的标准叶轮直径和转速。
Experimental study at the exit flow field of an axial flow fan with variable setting angle;
动叶可调轴流式通风机出口流场的实验研究
By means of fluent software numerical simulations about three-dimensional interior steady flow field of axial flow fan and the separately calculations to four flow states have be done.
利用FLUENT流体计算软件对一轴流式通风机的内部流场进行了数值模拟研究,分别对风机的4种流量工况进行了单独的计算。
This thesis aims at the saving energy problem for the axial flow fan with speed regulation,it begins with all air pressure equation of the axial flow fan,and derives the condition of the minimum energy consumption from the optimum control principle.
针对轴流式通风机调速节能的问题 ,从通风机全压方程入手 ,利用最优控制原理 ,推导出了调速控制的轴流式通风机最小能耗运行条件 ,为此类通风机调速节能运行提供了理论依
Study on pressure head characteristic of axial flow fan combined water jet dust-extraction fan;
轴流通风机与水射流除尘风机联合工作压头特性研究
The article introduces the working mode and principle of axial flow fans used in coal mines,and explains in detail the influence of the S-curves of the air-tunnel on air loss and design of the S-curves.
文章介绍了煤矿用轴流通风机的工作方式和原理,并详细论述了通风道"S"弯处对风量损失的影响,以及通风道"S"弯处合理的设计方法。
Carries out numerical simulation of the whole flow field,it is from the inlet of the collector to the outlet of the diffuser,in counter-rotating axial flow fan with the realizable turbulent model and the pressure boundary conditions.
采用Realizablek-ε湍流模型和压力边界条件对对旋式轴流通风机从集流器到扩散器出口的内部流场进行了数值模拟。
The normal condition of air flow through axial flow fans outlet was studied based on the phenomenon of air flow away from solid boundary.
从气流离开固体壁面的射流现象 ,研究了电动机直接驱动或带内筒体的轴流通风机出口气流的一般情况 ,指出了GB12 36— 2 0 0 0标准中对轴流通风机的出口面积的确定不尽合理之处 ,并提出了两点改进意
Analysis on and Treatment of Oil Leakage of Bearing Box in ACF Axial Mine Ventilating Fan
AGF轴流式通风机轴承箱漏油的分析与处理
Numerical Simulation of the Inner Flow Characteristics of an Axial Fan with Rear Guide Vanes
带后导叶轴流式通风机内流特征的数值模拟
The Development and Study on the Aerodynamic Design Program for the Axial Flow Fan
轴流式通风机气动设计程序的开发与研究
The Gasp Vibration of Mine Axial-flow Fan and Its Prevention
矿用轴流式通风机的‘喘振’及防护检测研究
Study of the Whole Flow Field in the Axial Fan Based on the Numerical Simulation of Unsteady Turbulent Flow;
基于非定常湍流数值模拟的轴流式通风机全流场的研究
Numerical Simulation and Performance Prediction for Flow Field under Off-design Operation
轴流式通风机非设计工况下流场的数值研究及性能预测
Aerodynamics of Adjustable Blade Axial Fan Under Abnormal Installation Angles
动叶可调轴流式通风机叶片安装角异常工况下的气动特性
Application and Analysis of Frequency Control Technology in Contra-rotating Axial Fan
变频调速技术在矿用对旋轴流式通风机上的节能应用与分析
Marine axial flow fans
GB/T11864-1989船用轴流通风机
marine flame proof axial flow ventilator
船用防爆轴流式扇风机
Readjustment and handling on top chink of blade of axial flow fan using in well
矿井轴流式主通风机叶片顶隙的调整与处理
The Experimental Study of Contra-rotating Axial Local Fan with Low Noise;
低噪音对旋式轴流局部通风机的实验研究
Determination on Blades Installation Size of Axial Fan for Mine Ventilation
矿用轴流式主通风机叶片安装尺寸的确定
Development on FBC Mining Flameproof Axial Flow Draw-out Booster Fan
FBC矿用防爆轴流抽出式局部通风机的试制
Numerical Simulation and Performance Prediction of lnner Flow Field in Axial Fan with Post-guide Vane
后置导叶式轴流通风机内部流场数值模拟及性能预测
AN APPROACH TO PROBLEM OF SCRAMBLING FOR AIR OF AXIAL I. D. FANS WITH STATIONARY BLADE ADJUSTMENT
静叶调节轴流式引风机抢风问题探讨
The Main Mine Fan Axial-Flow Parameters of the Dynamic Regulation of Working Conditions System
矿用轴流式主通风机工况参数动态调节系统的研究
The Design Method and Selection of Structure Type of Large-type Heat Rejection Axial-flow Fan for Subway
地铁用大型排热轴流通风机设计方法与结构型式的选择