Axial flow fans can be said to be the most common fans in daily life. Axial flow fans can be seen from personal PCs to factory exhaust outlets. So how to purchase a suitable axial fan? This article will provide some information to help you.
What is an Axial Fan?
As the name implies, when the axial fan is working, the blades push the air to flow in the same direction as the shaft, so it is called axial fan, tubular axial fan or axial fan. Axial fans are very different from centrifugal fans in design and function. Therefore, the differences make each of them suitable for different applications. Axial flow fans are mainly used for ventilation and heat dissipation of mechanical equipment.
How does an Axial Fan Work?
An axial fan is called "axial" because it has sharp edges that turn around a fixed hub. Fans are named for the orientation of the airflow they create as they move air. This means that air enters from the front of the fan and exits from the rear, flowing in a straight line through the fan's cylindrical housing. The speed of the fan can be adjusted by varying the voltage or frequency of the power supplied to the motor. Axial fans don't require a lot of force to operate. They move air at high flow rates, which means they can move a ton of air. Still, air currents are a low-stress factor. They are generally more efficient than other types of fans, such as centrifugal fans, because the airflow is directed in a straight line, reducing turbulence and improving airflow efficiency.
What are the advantages and disadvantages of axial fans?
No matter how high the speed of the axial flow fan is, there will be no air flow under the axis. However, below the fan shaft is the main source of heat. This situation makes the airflow unable to reach the central area smoothly, forming a "blind zone". The existence of the dead zone affects the overall heat dissipation effect. But the advantages are obvious. The axial flow type has a simple structure, the price is more acceptable to users, and the air volume is large. It is widely used as an industrial exhaust fan. Low-pressure, high-volume airflow is ideal for cooling spaces such as a home or office. It's also great for cooling hardware, like the PC you currently use.
How to choose a right axial flow fan?
Choosing the right axial flow fan for your application requires consideration of several key factors, including:
- Flow rate
- Pressure
- Diameter
- RPM
- Noise level
- Material
- Cost
How to choose the bearing arrangement of the fan?
Axial fan bearings are an important part of evaluating the performance of axial fans. Mostly used for sleeve bearings and ball bearings. According to the needs of customers, customers should choose suitable fans and various bearings. In addition to the special variables above, customers also need to be aware of axial fan engines. When purchasing an axial fan, concomitant commercial factors should be considered. Price: The price of the axial flow fan directly affects the purchase expenditure plan of the task. Manufacturer: Select the original manufacturer of the axial fan.
How to design the airflow system?
Axial fan forced ventilation is an important measure to take away the heat generated by the working equipment system. We should mention the application climate, operating conditions, temperature, humidity, erosion, quality of fan control, noise, airflow pressure, etc. during the cooling system planning phase.
Axial fan calculation:
Q=2.99W/Tc W: heat dissipation in watts Tc: allowable temperature in °C
How to choose fan pressure?
The equipment is designed according to the AMCA210 standard, which can accurately measure the air volume, static pressure and resistance system.
Test for maximum air flow (0 pressure) and maximum static pressure (0 flow)
Adjust the fan speed, test the air pressure and air volume, and draw the PQ curve.
How to determine the working point of the fan?
When the airflow system design meets the requirements of the fan, the next step is to select the fan characteristic curve and the airflow system characteristic curve. how to choose? Designers need to test the wind resistance characteristic curve, resistance curve and fan characteristic curve of the intersection graph. The air volume and air pressure at the intersection point meet the air volume and air pressure requirements of the fan cooling system. The cross mark between the fan execution curve and the airflow frame confrontation curve is the airflow system. Best job tag. This is the deciding factor when you choose a fan.
Choosing the Best Axial Fan Manufacturer
It is very important to choose an axial fan manufacturer. The manufacturing and supply chain of axial flow fans is very mature in China, and it is usually a wise choice to choose a Chinese axial flow fan manufacturer. Langdi is a well-known axial fan manufacturer in China. We have been working in the HVAC and air-conditioning cooling system industry for many years and have rich experience in research and development. Welcome to contact us for more information about axial fans.
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