Tel: 86-769-33829612 E-mail: info@scbvacuum.com
- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
Views: 248 Author: Lydia Publish Time: 2023-12-26 Origin: Site
Important considerations include the components that are used in the production of the centrifugal fan that you have selected. Most of the time, they will be determined by the working environment, which may be thought of as the quality of the air that is moving through the fan.
Centrifugal fans can be constructed using a variety of materials and techniques, depending on the type of unit that is specified, which can be either forward curved, backward curved, or radial. When evaluating the fan, it is essential to examine the casing, the motor, and the impeller, with the impeller being of special importance because of its role in the movement of air.
INTRODUCE YOURSELF TO YOUR CENTRIFUGAL FAN
A screenshot of the ACI fan selector machine
Application for Selecting Fans
THE DIRECTIONS FOR USING THE FAN SELECTOR TOOL
Watch the Video Here
The majority of fan casings are composed of aluminum, and this is true regardless of the type of fan being used. For the following reasons, LM6 is the most popular grade of aluminum among professionals and enthusiasts:
Because of its high thermal conductivity, it is able to assist in the dissipation of heat that is produced by the operation of the fan. In this way, the fan is kept cool and its internal components are shielded from the harm that might be caused by excessive heat.
LM6 is a material that is both lightweight and strong for the casing. This is due to the fact that it has a high strength-to-weight ratio. This helps to reduce the overall weight of the fan, which in turn makes it simpler to install and even more convenient to move.
The fact that it is resistant to corrosion to a high degree makes it suitable for use in harsh environments, such as chemical manufacturing facilities. The longevity of the fan is increased by this function, which also reduces the amount of money spent on maintenance.
The fact that the LM6 is easy to cast and process helps to cut down on the amount of time and money required to manufacture the fan.
a fan housing made of stainless steel
An excellent illustration of this is the VBL6, which is a well-known forward-curved centrifugal fan. This compact yet powerful fan is manufactured in large quantities for use in numerous applications, including fume cabinets and clean rooms. To provide an additional layer of defense, the LM6 case on the VBL6 has been finished with a powder coating in black.
Due to the fact that aluminum has a low melting point, stainless steel is the material of choice for more demanding industrial applications. Instead of being cast, the casing needs to be fabricated (welded) in this particular scenario.
When compared to the processes of sand casting or gravity casting an aluminum case, this approach takes a significant amount of time. Fabrication, on the other hand, rather than casting, makes it possible to incorporate unique elements in a more expedient and straightforward manner.
Stainless steel of grade 304 is recommended for use in everyday applications where diecast aluminum is not an acceptable construction material. Flatware is one of the most common applications for grade 304 stainless steel, which is also the most extensively used type of stainless steel in the world. Grade 316, on the other hand, would be necessary for applications in the food processing industry, the pharmaceutical industry, or the petrochemical industry. Higher corrosion resistance is provided by grade 316L, which has a lower carbon percentage than other grades.
The use of diecast aluminum is also widespread in the construction of fan motors. Almost all of the housings are of the "squirrel cage" form, which is characterized by the presence of fins that facilitate cooling.
Aluminum is often the material of choice for motor housings for all of the reasons that were indicated for the previous paragraphs. It is recommended, however, that cast iron be used for applications in which toughness is of the utmost importance, particularly in areas where there is a possibility of explosion.
Cast iron is a material that is both highly durable and long-lasting. It has a high resistance to wear and strain, as well as a high mechanical strength. When compared to aluminum, however, it is significantly heavier and more prone to corrosion. By applying a protective covering to the cast iron, such as paint or enamel, it is possible to prevent the cast iron from being exposed to air and moisture.
A Motorized Fan Made of Cast Iron
Impellers are constructed with blades, a shroud plate (also known as the front plate), and a rear plate.
Impellers for forward-curved centrifugal fans are constructed from mild steel that has been zinc-coated to help prevent corrosion. In order to apply the zinc layer, one can either employ galvanization, which involves dipping in molten zinc, or plating, which involves electrolysis.
It is well knowledge that the impellers of radial centrifugal fans and backward-curved fans are significantly larger and heavier than those of forward-curved fans. To differentiate themselves from forward-curved fans, which have 'hamster wheel' impellers, radial and backward-curved fans have impeller blades that are larger and spaced further apart.
It is common practice to construct radial and backward-curved impellers out of thicker, heavier steel that, if necessary, can be coated with a wet coating. Although blade size and spacing are not a concern with forward-curved impellers, they are not a problem.
In contrast to forward-curved impellers, which are nearly always manufactured by machine, heavier impellers are almost always made by hand. This is due to the fact that the steel is thinner and more malleable. In the event that it is required, however, forward-curved impellers can be constructed by hand.
Impellers with a curved shape that revolve both forward and backward
ACI's fan engineers are available to provide you with knowledgeable guidance regarding the type of fan that is most suitable for your application. In order to overcome the issues you are having with air supply, we are able to assist you in specifying strong fans that are also efficient in their use of energy.
We are able to provide you with a quicker return on investment by working with our experts to build a customized solution that is based on common components while maintaining a reasonable price point.
