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FOCUS ON EC FAN ONLY
FOCUS ON EC FAN ONLY
The rail transit system (including subway, light rail, high-speed rail, etc.) has put forward strict technical requirements for ventilation equipment, which are mainly reflected in the following aspects:
It is required to meet the requirements of 24 hours uninterrupted operation and long maintenance cycle. The PBM fan adopts S1 working system design, which has stable performance and can adapt to continuous high intensity operation.
Through the application of EC outer rotor brushless motor, PBM fan is 20%~30% more energy saving than traditional fan, significantly reducing energy consumption and carbon emissions, in line with the development trend of green transportation.
In view of the limited installation space of rail transit, PBM fan realizes miniaturization by optimizing the structure layout and maintaining efficient ventilation performance.
The fan protection grade is IP55 and above, with waterproof, salt spray and corrosion resistance, and can adapt to the harsh environment such as high humidity and dust in the tunnel.
Based on RadiCal centrifugal fan technology, PBM provides the following core solutions:
-Efficient centrifugal impeller design
Using a backward centrifugal impeller, the operating efficiency is over 75%, taking into account low noise and high wind pressure output.
-Integrated drive system
Integrated EC motor, compact structure, protection level up to IP55, and through anti-vibration design (in line with EN61373 standards), to ensure long-term stable operation.
-Typical application scenarios
-Subway platform exhaust system: quickly remove smoke and ensure the safe evacuation of personnel in emergency situations.
-Longitudinal ventilation system of the tunnel: optimize the airflow organization and maintain the balance of air quality, temperature and humidity in the tunnel.
The core requirement of the project is to improve the anti-corrosion performance and protection level of the fan. PBM has achieved a technological breakthrough through the following measures:
-Material selection and optimization: use high weather resistance coating and anti-corrosion materials, customized protection scheme for different environments.
-Strict process control: from substrate surface treatment, coating ratio to construction method, the whole process of standardized operation to ensure the anti-corrosion effect.
-Full life cycle maintenance: combine regular inspection and coating renewal to extend the service life of equipment.
The project needs to adapt to extreme temperature conditions of-50℃ to 60℃. The PBM targeted optimization scheme includes:
-Low temperature adaptability design: select low temperature resistant bearings, magnetic tiles and cables to ensure the stable operation of the equipment in ultra-low temperature.
-Electronic component reinforcement: Control board components are tested for EMC and parameters are re-matched for low temperature environments.
-Verification and delivery: After two years of development cycle, through multiple rounds of environmental simulation tests and customer communication, the final batch supply was realized.
For specific customer needs, PBM provides customized design, including structural optimization, energy efficiency improvement and intelligent control module integration, to meet the requirements of efficient ventilation under complex working conditions.
PBM fans have become the preferred solution for rail transit ventilation systems due to their high reliability, energy saving and environmental adaptability. Through continuous technological innovation and customized capabilities, PBM has successfully solved technical challenges in extreme environments in many projects around the world, providing a solid guarantee for the sustainable development of the rail transit industry.
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