CNC impeller and energy efficiency

Reducing Carbon Emissions, energy efficiency for greater savings and environmental protection are the main topics in the world now.

As important energy-saving equipment, the blower is used in many fields, including the sewage treatment industry, textile, food& beverage, medical, transportation, petrochemical industry, packaging, paper &printing, pharmaceutical, power industry,

mining industry, coal industry, and steel industry. Since the energy requirement for the aeration of aeration tanks in wastewater treatment plants reaches 70 %, energy efficiency is still the decisive indicator for a healthy energy balance.

The new generation of energy-saving fan products include:

Air suspension centrifugal blower, Magnetic suspension High-Speed turbo blower.

Maglev Centrifugal Blower, turbocompressor and Turbopump, etc.

In the past ten years, the fan products have been upgraded from product design to operation

The most significant features of the new generation of energy-saving fan products are:

●Compact size, simplifying both transport and installation

●High efficiency, with energy savings up to 45%

●Low noise, low vibration

●Maintenance-free, lubricating oil-free.

Firstly, in the aspect of design, through the wide application of scientific research achievements of the impeller, volute, and other components, the manufacturing accuracy is further improved. The efficiency of various fans is increased by 5%-10% on average. At present, the most advanced centrifugal fans have adopted a three-dimensional flow impeller, the maximum efficiency can reach 87%, and the maximum efficiency of axial fan has reached 92%.

Air is drawn axially into the center of the impeller with radial blades and is pushed radially by means of centrifugal force. The rotation of the impeller accelerates the speed of air (kinetic energy) and forces it to pass through the downstream diffusers and volute. Here, the high kinetic energy is converted into potential energy (pressure) slowing down the speed of the air through expansion. According to Bernoulli’s principle, the velocity energy is converted into pressure energy (pressure is inversely proportional to velocity squared).

This principle becomes clear when one considers the basic formula of an impeller. Here, the torque acting on the shaft is considered to be equal to the mass flow multiplied by the ratio of the speed of the inlet impeller to the outlet impeller, that is, the air quantity/mass and the isentropic conveyor height quantified by the system, or the pressure increase. These fundamental parameters define the optimal basic geometry of the impeller and the housing.

That is the reason why the impeller plays the most vital role in this process. Its geometry can take a number of forms and can be decisive for the flow pattern in the whole blower stage. As the turbo blower is a turbomachine with extremely high flow speeds within the stage, a flow that is free of turbulence, and thus losses, becomes a vital parameter for attaining high isentropic stage efficiency levels. The specific work of a radial compressor stage is established by its enforced conveyed-air mass flow and the contribution of the supplied energy, the supplemental effect responsible for increasing speed.

Impellers are mill with the 5-axis machining to precisely duplicate the design and realize the intended design efficiency.

Using high strength forging aluminum alloy AL7075 or Titanium as the impeller material to gain the material strength while no cracks or porosities are found in castings.

The anodized coating ensures surface hardness.

Tik precision manufacturing co. Limited specializes in precision 5 axis CNC machining metal and plastic parts. (Tolerance within ±0.01mm), MOQ: 1pcs.

We have years of work experience in custom impellers machining.

Max diameter reaches 800mm, Rotation Speed up to 100,000 rpm, we support the steel and aluminum, titanium.

The customers we cooperate with are mainly from the aerospace industry, automotive industry, Marine industry, and environmental protection equipment industry