The Advances in Positive Displacement Turbo Blowers

自1868年以来，Aerzen一直根据根部原理发展阳性的吹风机。然后，在1987年，Aerzen将三型鼓风机引入了市场，同时为工艺技术申请了专利。该公司在这么多年的经验上继续发展，并将积极的排量打击器建立在高级高科技产品中

Functionality of the Positive Displacement Blower

输送方向基于转子的转弯方向以及舞台的安装位置。根据正常安装位置提供垂直输送的假设，并且旋转方向使从上到下运输变得容易，基本原理如下：如下所示，空气从上入口端口流向舞台。

In combination with the exterior wall and the lobes of the pistons, the rotation of the rotors creates so-called “conveying chambers”, where there is still ambient pressure. The system pressure is adjusted as soon as the first lobe passes the opening to the pressure side. This is known as isochoric compression. The rotors seal off each other to the inside, and this prevents a change of pressure.

Technology

Compression Principle

等速压缩原理，也称为外部压缩，用于操作积极的位移鼓风机。通过间歇性将气态介质（例如，大气空气）传输到系统中，可以实现压力增加。相关压力增加是通过将介质从大气条件迫使具有指定电阻的系统（例如水柱）来实现的。鼓风机应在特定的输出水平上运行，以克服这种电阻。Aerzen称此“耦合性能”（PK）。

三角洲吹风机

versatility in Numbers

三角洲吹风机are solid all-rounders: the largest machines are used to operate lifting systems, while the smallest packaged units are mounted to silo trucks. They can be employed to unload transport ships, and have hourly performance of up to 1,000 tons.

• Control range from 25 to 100%
• pressures up to 1,000 mbar
• 从DN 50到DN 400的名义尺寸
• Intake volume flows in negative pressure up to 500 mbar
• Intake volume flows from 30 m³/h至15,000 m³/H

Applications

• 水和废水处理
• ventilation
• Backwash of filters and much more

Advantages

• Extremely reliable and robust
• 基本支持中没有吸收材料
• Oil-free as per Class 0 according to ISO 8573-1
• Sustainable energy efficiency
• 最小化的维护时间和成本

积极位移鼓风机的功耗

垂直轴对应于“压力” P

p₁：在鼓风机入口处的压力
p₂: Pressure at the blower outlet
p_v：在入口和出口处进行吸力和压力损失（也取决于外围）
∆p: Difference between intake and discharge pressure

水平轴对应于“音量流” Q

问₀：由鼓风机中的输送室中的体积定义的理论体积流
问_v: Volume flow loss which is produced by the medium flowing back in the clearances of the conveying chamber (between housing and rotor lobe)
问₁：可用量流

结果区域对应于功率要求。从技术上讲，这可以从以下公式从数学上推导：

p= Q* ∆p

The following can be deduced from the main formula.

p_Th：理论权力要求p_Th由差分ΔP和理论体积流的乘积确定。

p_Th= q₀*∆p

In the above illustration, the power requirement corresponds to the area a-b-c-d.

p_k：对于理论权力要求p_Th, the coupling performance P_k还认为绩效损失p_v。

p_k= p_Th+ P_v= q₀*（∆P+P_v）

在上面的图中，耦合性能对应于A-B-E-F区域。

正位移的特性

Currently, positive displacement blowers of the Delta Blower Generation 5 serve as the driving force behind various processes, and are the core of a strong machine combination. Many innovations with this young range have been introduced by Aerzen. They represent outstanding blower power for oil-free conveyance of neutral gases and air, without the requirement for absorbing media. Positive displacement blowers provide a large volume of flow range from 30 to 15,000 m³/小时更简单的交接；降低生命周期成本，甚至更安静的操作。

However, one thing remains the same: the blower class remains extremely robust, thoroughly reliable and has a very long service life. So, it is not surprising that customers choose for uninterrupted, long-term applications - over years and decades.

This information has been sourced, reviewed and adapted from materials provided by Aerzen Machines Ltd.

For more information on this source, please visitAerzen Machines Ltd。