Understanding Industrial Fans

Industrial Fan Types: Choosing the Right Solution

Beyond the core selection factors, understanding different industrial fan types will empower you to make informed decisions:

• High-Velocity Cooling Fans: These fans generate a focused stream of high-speed air, ideal for spot cooling workstations, machinery, or processes that generate concentrated heat.
• Industrial Circulation Fans: Designed to maximize airflow throughout a large area, these industrial floor fans are perfect for general ventilation in warehouses, factories, or loading docks. They come in various sizes and configurations, including:

Q: What to Look for in an Industrial Fan

A: Here are key considerations when choosing an industrial fan:

• Airflow Capacity: Select a fan that can deliver the required airflow volume for your specific application.
• Noise Level: Consider noise output, especially in settings where noise reduction is crucial.
• Durability and Reliability: Industrial fans operate continuously, so choose one built for long-lasting performance.
• Energy Efficiency: Look for energy-efficient models to minimize operational costs.
• Control Options: Some fans offer variable speed control or oscillation features for optimized performance.

Q: How to Cool a Warehouse with Fans

A: Strategic fan placement is key to effectively cooling a warehouse:

1. Identify Heat Sources: Locate areas with high heat generation from machinery, processes, or sunlight penetration.
2. Maximize Air Circulation: Position fans to create a cross-flow pattern, pushing cool air across the warehouse and displacing hot air.
3. Utilize High-Velocity Fans: Direct high-velocity fans towards specific heat sources for concentrated cooling.
4. Pair with Ventilation: Combine fans with natural ventilation strategies like opening dock doors or installing roof vents for optimal results.

Understanding BLDC Motors for Industrial Fans

Industrial fan motors are the driving force behind various industrial applications, ensuring proper ventilation and air circulation within factories, warehouses, and other large-scale shops. Choosing the right commercial electric fan motor is vital for achieving efficient operation and a comfortable working environment.

Basic parameters for large industrial fan motor selection:

Normally, aerodynamic features and noise level determines how good one commercial electric fan motor is. Before selecting a suitable model, there are some information needing to be known, involving construction and type, working environment, rated static pressure, flow rate, rated power, energy efficiency and lifetime requirement, etc. In addition, to have best plan, limitation on motor dimension and requirement on certification, as well as special requirement on parts shall be also understood.

Basic introduction on the method of industrial fan testing

Refer to GB/T1236-2017 Industrial fan—Performance testing using standardized airways, there are four methods of measurement listed:

1.Multiple nozzles.

2.Cone-shaped or arc-shaped inlet.

3.Orifice plates.

4.Pitot-static tube.

Here below is a description for testing method “multiple nozzles”:

1.Test setup (refer to GB/T1236-2017, chapter 22, figure-41)

2.Test equipment (test photo):

2.1 Fan

2.2 Steady flow system

2.3 Variable Exhaust system

3.Test process:

3.1 Attach fan to the chamber.

3.2 Select one particular nozzle and block the others.

3.3 Adjust static pressure in chamber, simulating working condition of fan.

3.4 Record test data, required parameters as below:

3.4.1 Rotational speed N

3.4.2 Input power Pa

3.4.3 Differential pressure △P

3.4.4 Upstream pressure Pe6

3.4.5 Pressure at chamber Pe4

3.4.6 Temperature at chamber T4

3.4.7 Pressure at the area of fan Pa

3.4.8 Room temperature at inlet area Ta

3.4.9 Dry-bulb and wet-bulb temperature Td,Tw

3.5 Calculate the value of flow rate with formula below:

CJC available motor models for industrial floor fans:

1.BL5540

2.BL5830

3.BL7813

4.BL8220

5.BL8390