High Speed Turbo Blower: Wastewater Treatment Facilities Needs One

Turbo Blowers - Why Your Wastewater Treatment Plant Needs One

The most recent blower technology is highly efficient, compact, and low-maintenance turbo machines. The skills and experience of companies in the industry date back to the early 1900s, when they started constructing and distributing turbo blowers. This concept is used based on the principle of radial compressors.

It is essentially identical to modern blowers, aside from some changes in the drive technology and size over time. Considering these changes, modern speed-regulated devices are more efficient, almost maintenance-free, and more compact.

Blower manufacturers have developed a new generation AT turbo blowers that have been developed to fulfill the demand of biological, communal, and industrial wastewater treatment facilities. These devices operate with a permanent-magnet and high-speed motors. It can be easily adapted to shifting flow demands of between forty percent and one hundred percent without needing mechanical adjusters.

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Advantages

High durability and reliability

Excellent energy efficiency

Minimized life cycle costs

Low maintenance

Applications

Ventilation of rivers or lakes

Wastewater cleaning

Versatility in numbers

Intake volume flows from 110 meters squared per hour to 9,000 meters squared per hour

Regulation range from forty percent to 100 percent

Overpressures up to 1,000 millibar

Nominal sizes of 100 nominal diameters to 300 nominal diameters

Frequency converters, as well as line reactors, are integrated into systems that are ready for connection. These high-speed motors are more efficient compared to standard motors. An oil-free, vibration-free, and contact-free, airfoil bearing is used to drive and speed regulate the compact and air-cooled engine. The outcome is reduced wear and tear, less maintenance cost and effort, as well as excellent efficiency.

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Technology

These high-speed blowers are radial compressors. These things are classed as turbo-powered machines, and they differ principally from displacement devices, for instance, screw compressors and positive displacement devices. Compression is a pulsation-free turbo machine because it is constant.

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Conventionally, ambient air is sucked into the impeller through the axial direction. It is redirected through the impeller and housing constructions at a ninety-degree angle. Since the air exits in radial directions, it is reflected in its name: the radial compressor.

Rotating at a higher speed, impellers charge the suction air using kinetic energy through the motor’s speed. It is because of the rotation of impellers. In this case, the flow is continuously moved outwards. High-speed air escaping from impellers is slowed down by downstream diffusers and collected in spiral housings surrounding impellers.

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When air is slowed down, high kinetic energy levels are converted to potential energy, creating pressures. When the accelerated air in diffusers is slowed down, congestion happens, and the ensuing air molecules collide at a pretty high speed with molecules that slowing down in the process.

It will compress the flow and generate a static pressure in the system. After the flow has been collected in spiral housings, the air in downstream cone diffusers is slowed down to ensure that the remainder of the remaining kinetic energy is turned into potential energy with no significant losses.

Bernoulli’s Law significantly explains the operating principle. It explains that when the mass flows through the system constantly, the energy of the system remains constant. That is why, if there’s an increase in the flow speed of air in systems, there will be a constant decrease in static pressures of airflows.

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Not only that, but this thing also applies in reverse if the system’s energy doesn’t change. The principle applies to the diffusion of blower stages. Energy is introduced into the system of radial compressors through impellers in the form of kinetic energies.

This thing becomes evident when considering the basic formula of impellers. In this case, the torque acting on the shafts is determined to be the same with the mass flow multiplied by the speed ratio of inlet impellers to their outlet counterparts. 

The mass or quantity, as well as the isentropic conveyor height, is measured by the system, or pressures increase. It is the common parameters that define ideal basic geometries of housing and impellers. That is why this thing has the most vital role to play in the process.

The geometry can take different forms and can be conclusive for flow patterns in the entire stage. Since high speed turbo blower are turbo machines with high flow speeds in the stage, turbulent-free flows, as well as free of losses, become an essential parameter for achieving high-efficiency levels. The particular work of radial compressor stages is determined by the imposed conveyed-air mass flow and the contribution of supplied energies, that is, if the supplemental effect that accounts for increased speed.

Features of high-speed turbo blowers

A vital feature map recognizes every turbo device. This map shows operating ranges within and beyond operating limits. In most cases, different efficiency fields are included. Illustrating the operating points of the device within the feature map makes sure that it instantly shows whether the device is operated within its physical limits, as well as within the economically advantageous point.

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Efficiency levels vary and are in correlation with given, conveyed volume flows, as well as the pressure increase. Depending on the operating range of systems used, the exact layout of the device is assumed to be the deciding factor for profitability and reliability.

Devices can’t be operated outside the feature map as they can damage the device. If it is appropriately designed, the device can achieve high levels of effectiveness and efficiency, especially for high and medium volume flows, as well as relatively comprehensive control, ranges between maximum drive performance or choke limit and pump limit. A constant compression and conveying of the process air without proper pulsation shows that it provides a significant strain on vibration-sensitive parts and increased noise levels, as well as a decrease in locations.