Movimento HF 
The Role of Industrial Exhaust Fans
Industrial exhaust fans are widely used in factories and workshops and are of irreplaceable importance. These devices can be used for a variety of critical purposes, including temperature control, harmful gas removal, and ventilation. Since the spaces of industrial and commercial buildings are usually huge and require a large amount of air exchange to ensure the quality of the indoor environment, industrial exhaust fans with high power and large air volume have become one of the common equipment in these buildings.
They can efficiently regulate indoor temperatures, ensure the normal operation of equipment, and maintain stable working conditions during the production process, play a key role in removing harmful gases and exhaust to protect the health and safety of workers, creating a more comfortable and safer working environment. Perciò, industrial exhaust fans are not only essential in modern industrial and commercial buildings, but also play an indispensable role in maintaining production efficiency, protecting employee health and ensuring environmental quality.
Ventilation Costs
The power of industrial exhaust fans is generally 0.1~1.5KW. According to relevant environmental protection standards, the air exchange standard in the workshop is 10~20 times per hour. Taking a 2,000 square meter workshop with a ceiling height of 6 meters as an example, the annual electricity cost for ventilation is as follows:
For equipment that needs to run for a long time, such as industrial exhaust fans, energy consumption often accounts for the majority of operating costs. When air quality is poor, more fans usually need to be configured to run simultaneously, further increasing energy costs. In the field of industrial and commercial electricity consumption, electricity costs have a very significant impact on business operations. To reduce electricity costs and energy consumption, many businesses are looking to alternative energy solutions.
Solar energy systems are an attractive alternative energy option that can effectively reduce electricity costs. Tuttavia, traditional solar energy systems have some shortcomings, such as high investment costs, complex equipment and difficult control problems, as well as low utilization rates of photovoltaic systems. These issues can put businesses off.
HF Motion has been working hard to solve the problems of traditional solar systems and has already tested it in the ventilation equipment industry and achieved very satisfactory results. E-Hybrid solar technology is suitable for various ventilation or fan products. It can be plug-and-play or deeply integrated, and is suitable for different application scenarios.
Its main feature is that it can form a parallel input of solar energy, mains power, and battery to the fans. With solar energy output as the priority, according to changes in real-time solar power generation, mains power and battery output automatically adjust and complement each other steplessly.
The specific form of the system is as follows. The solar panel, mains power, and backup battery (opzionale) are output to the E-Hybrid power supply, and then the DC output is to the industrial exhaust fan (EC fan), and can be used to drive multiple fan units.
It has the following operating modes according to changes in sunlight throughout the day and mains power conditions:
For situations where many fans are running at the same time and the total power consumption is relatively large, two or more E-Hybrid power supply can be connected in parallel to increase the output power:
The application of E-Hybrid power supply brings the following benefits to the application of EC fans:
- Stable power output in the morning, sera, and on cloudy days.
- Saving electricity bills
- No inverter lose of solar power
- Less investment
- Long battery life
- Solar power utilization rate 30% higher than normal solar power system.
In addition to high efficiency solar technology, we also provide BLDC motors and controllers for industrial exhaust fans to better match the E-Hybrid power supply and achieve maximum efficiency. The main form is an integrated design of motor and controller, which can replace the existing AC induction motor and has the following features and advantages:
- The structure and principle of the motor determine that the energy efficiency of the BLDC motor is 18% higher than that of the AC induction motor.
- The starting current is low, reducing the impact on the power grid and eliminating the need for large-capacity transformers.
- Free speed adjustment to meet different air volume requirements.
- The motor speed matches the fan speed range, without the need for a belt or gearbox, reduce power losses.
- Use variable speed and low speed operation instead of full speed/stop to reduce energy consumption.
- Support Modbus/CAN connection for external control to achieve remote and intelligent control.
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