排风罩

采用CFD技术分析了等温情况下环形风口排风罩和传统伞形排风罩排气气流特性。

With the CFD technology , the airflow characteristic on loop outlet exhaust hood and the traditional canopy exhaust hood was analyzed under the isothermal condition .

运用GAMBIT建立侧吸式及射流作用排风罩的数学模型，并应用FLUENT软件对排风罩的速度分布进行数值模拟。

Using GAMBIT to establish the role of lateral suction and jet exhaust hood of the mathematical model and FLUENT software to simulate the velocity distribution of the application of the exhaust hood .

本文针对某实际工程，通过理论分析、实验与CFD模拟仿真，寻找控制酸雾污染的最佳技术，经过研究分析可知吹吸排风罩是很合适的。

Based on practical engineering , we can seek for the best technology to control acid mist pollution , through theoretical analysis , experimental and CFD simulation .

利用Fluent软件对气幕旋风排风罩流场进行了模拟，采用标准k-ε紊流模型，以同一速度不同角度进行送风，得到各自流场的速度矢量和压力值。

This paper stimulates the air-curtain exhaust hood of cyclone by using Fluent , and obtains the speed vector and pressure value of each flow field by adopting the standard k - ε turbulence model and supplying air from the different angles at the same speed .

气幕旋风排风罩流场的数值模拟

The Numerical Simulation of Flow Field of Air-curtain Exhaust Hood of Cyclone

旋转气幕式排风罩数值模拟及实验研究

Numerical Simulation and Experimental Research of the Rotary Air Curtain Exhaust Hood

考虑法兰影响的排风罩理论计算方法

Theoretical calculation formula for the exhaust hood with flanges

环形风口排风罩气流特性的数值模拟

Numerical Simulation on Airflow Characteristic of Loop Outlet Exhaust Hood Ring Shaped Oscillator

一种吹吸式排风罩流场的数值计算

Numerical value calculating on flow space of a blowing and drawing exhaust cover

研究了商用厨房环境的空气品质，阐明了补风对排风罩性能的影响。

The report illustrates the influence of makeup air on exhaust hood performance .

回归分析得出了该气幕式排风罩有效控制距离的计算式。

Obtains a regression formula for predicting the effective control distance of the hood .

一种新型旋风气幕式排风罩数值模拟研究

Study on Numerical Simulation of a new type of rotary air curtain exhaust hood

局部排风罩的优化设计方法

Design optimization of local air-exhaust hoods

炉盖排风罩在精炼炉除尘系统中的应用

The application of furnace cover with exhaust hood in the dust collection system of the refining furnace

实验室排气系统包括排气管路、气风机、验室通风柜管道、验室排风罩和特殊存储柜的排气管道。

The laboratory exhaust system includes exhaust duct works , exhaust fan , laboratory fume hood exhaust , laboratory canopy hood and cabinets needed venting .

新方案中的吹吸排风罩系统都采用均匀送吸风，以期达到好的控制效果。

To achieve a good control effect , in the new plan blows attracts the row of wind sail system all use delivers the inflow evenly .

在送风比例相同的条件下，局部排风罩向下送风方式的排风效率最高，天花板顶送风方式次之，局部排风罩后送风方式最低；

Under the condition of the same supply air ratio , the exhaust efficiency of air-curtain supply types is highest , that of ceilings supply is higher , and that of rear supply is lowest .

对复合式和普通式排风罩，在不同罩口高度和风机转速条件下，分别测定了液面控制速度、罩口吸气速度和排雾效率。

The control velocity over liquid level , face velocity and vapour extraction efficiency have been measured respectively in condition of different hood heights and fan speeds for both the complex and ordinary vapour hoods .

由于对这种排风罩缺乏系统理论研究，至今处于尝试阶段。

Because of the lack of the system theory research , the use are still at attempt stage . In order to disseminate and apply the new technology much better , In this paper , the rotated air curtain exhaust hood is object of study .

综合比较两种补风方式，天花板顶部补风方式比气幕式补风对排风罩捕获能力的影响较小，这有助于实现商用厨房建筑的最优化通风设计。

In general , the influence of ceiling makeup air supply style on the capture and contain capability of the wall-mounted oil fume hood is less than the air curtain makeup supply style . The report helps engineers to achieve the optimization of kitchen ventilation system design .

此外，借鉴用于工业通风的吹吸式排风罩，分析了二维吹吸气流特性和流场数值模拟，比较等速度线图，指出了二维吹吸气流在厨房通风中的可行性。

In addition , by contrast to the exhaust hood for industrial ventilation , this paper analyze the characteristic of two-dimension puff and suck airflow and the flow-field simulation of numerical value , compare the constant-speed line chart , and indicate the available two-dimension airflow in kitchen ventilation .

现代实验室变风量排风柜罩面风速的控制

The Control of Face Velocity of VAV Fume Hood in Modern Laboratory