离心风机

Centrifugal fan

依靠输入的机械能，提高气体压力并排送气体的机械，它是一种从动的流体机械。

Relying on the input mechanical energy, it is a driven fluid machinery that increases the gas pressure and discharges the gas.

离心风机广泛用于：

Centrifugal fans are widely used in:

①工厂、矿井、隧道、冷却塔、车辆、船舶和建筑物的通风、排尘和冷却；

① Ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings;

②锅炉和工业炉窑的通风和引风；

② Ventilation and induced draft of boilers and industrial furnaces;

③空气调节设备和家用电器设备中的冷却和通风；

③ Cooling and ventilation in air conditioning equipment and household electrical appliances;

④谷物的烘干和选送；

④ Drying and selection of grain;

⑤风洞风源和气垫船的充气和推进等。

⑤ Wind tunnel wind source and inflation and propulsion of hovercraft.

2、轴流风机

2. Axial flow fan

就是与风叶的轴同方向的气流，如电风扇，空调外机风扇就是轴流方式运行风机。之所以称为“轴流式”，是因为气体平行于风机轴流动。

It is the air flow in the same direction as the axis of the fan blade, such as the electric fan. The fan of the external unit of the air conditioner is the fan operating in the axial flow mode. It is called "axial flow type" because the gas flows parallel to the fan axis.

轴流式风机通常用在流量要求较高而压力要求较低的场合。

Axial flow fans are usually used in occasions with high flow requirements and low pressure requirements.

轴流式风机固定位置并使空气移动。

The axial flow fan is fixed in position and moves the air.

特点：

characteristic:

小型轴流风机：功耗低、散热快、噪音低、节能环保等。由于体积小用途比较广泛。

Small axial fan: low power consumption, fast heat dissipation, low noise, energy conservation and environmental protection. Because of its small size, it is widely used.

大型轴流风机：具有结构简单、稳固可靠、噪声小、风量大、功能选择范围广等特点。

Large axial flow fan: it has the characteristics of simple structure, stability and reliability, low noise, large air volume and wide range of function selection.

3、斜流风机/混流风机

3. Diagonal flow fan / mixed flow fan

介于轴流风机和离心风机之间的风机，斜流风机的叶轮让空气既做离心运动又做轴向运动，壳内空气的运动混合了轴流与离心两种运动形式。

For the fan between axial flow fan and centrifugal fan, the impeller of diagonal flow fan makes the air do both centrifugal and axial movement. The movement of air in the shell is a mixture of axial flow and centrifugal movement.

结合了轴流式和离心式风机的特征，尽管它看起来更像传统的轴流式风机。将弯曲板形叶片焊接在圆锥形钢轮毂上。通过改变叶轮上游入口外壳中的叶片角度来改变流量。机壳可具有敞开的入口，但更常见的情况是，它具有直角弯曲形状，使电机可以放在管道外部。排泄壳缓慢膨胀，以放慢空气或气体流的速度，并将动能转换为有用的静态压力。

It combines the characteristics of axial and centrifugal fans, although it looks more like a traditional axial fan. The curved plate blade is welded to the conical steel hub. The flow is changed by changing the blade angle in the inlet housing upstream of the impeller. The casing can have an open inlet, but more often it has a right angle bending shape so that the motor can be placed outside the pipe. The discharge shell expands slowly to slow down the flow of air or gas and convert kinetic energy into useful static pressure.

主要用于矿井通风和隧道通风。

It is mainly used for mine ventilation and tunnel ventilation.

两者的区别：

The difference between the two:

1、离心风机改变了风管内介质的流向，而轴流风机不改变风管内介质的流向；

1. The centrifugal fan changes the flow direction of the medium in the air duct, while the axial fan does not change the flow direction of the medium in the air duct;

2、前者安装较复杂。

2. The installation of the former is more complex.

3、前者电机与风机一般是通过皮带带动转动轮连接的，后者电机一般在风机内；

3. The motor of the former is generally connected with the fan through the belt to drive the rotating wheel, while the motor of the latter is generally in the fan;

4、前者常安装在空调机组进、出口处，锅炉鼓、引风机，等等。后者常安装在风管当中、或风管出口前端。

4. The former is often installed at the inlet and outlet of the air conditioning unit, boiler drum, induced draft fan, etc. The latter is often installed in the middle of the air duct or at the front end of the air duct outlet.

5、前者是空气收入后加压，后者是正压驱动。

5. The former is pressurized after air income, and the latter is driven by positive pressure.

斜流(混流)风机:

Diagonal flow (mixed flow) fan:

1、风压系数比轴流风机高，流量系数比离心风机大。

1. The wind pressure coefficient is higher than that of axial flow fan, and the flow coefficient is greater than that of centrifugal fan.

2、填补了轴流风机和离心风机之间的空白。

2. It fills the gap between axial flow fan and centrifugal fan.

3、安装简单方便。

3. The installation is simple and convenient.

离心风机 跟 轴流风机 在启动时的差别：

Difference between centrifugal fan and axial flow fan at startup:

离心风机的运转功率随着风量的增加而增加，所以离心风机在启动时风门要全关，然后再逐渐打开，避免风机电流过大而烧毁电机。

The operating power of the centrifugal fan increases with the increase of air volume, so the air door of the centrifugal fan should be fully closed when starting, and then gradually opened to avoid burning the motor due to excessive fan current.

轴流风机的运转功率随着风量的增加而减少，所以轴流风机在启动时，风门要全开，然后再逐步关闭到所需的风量值。

The operating power of the axial flow fan decreases with the increase of air volume, so when the axial flow fan is started, the damper shall be fully opened, and then gradually closed to the required air volume value.

以上就是为大家介绍的有关陕西离心式风机厂家的详细介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以专业的态度,为您提供服务http://www.sdyqtc.com

The above is the detailed introduction of Shaanxi centrifugal fan manufacturers. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.sdyqtc.com

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