Двунаправленная Обратимость: Струйные Вентиляторы от Китайских Поставщиков и Заводов для Вентиляции Туннелей
Product Description
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High Efficiency & Energy Saving
- Generates significantly greater thrust per unit of energy than conventional axial fans, substantially reducing operating costs.
- Noticeably higher efficiency compared to standard axial fans at lower A-weighted noise levels.
- Optional two-speed motor reduces rotation speed under favorable natural ventilation conditions for additional energy savings.
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Superior Bidirectional Performance
- Forward/reverse switching completed in just 30 seconds.
- Meets urgent smoke extraction requirements during tunnel fires and similar emergency situations.
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Exceptional Reliability
- Housing manufactured using imported specialized turning and flanging machines for high strength and excellent concentricity.
- Blades die-cast from aluminum alloy, precisely balanced using German Schenck dynamic balancing equipment.
- Fully enclosed squirrel-cage motor, Class H insulation, IP55 protection, service life > 20,000 hours.
- Specially designed to withstand elevated temperatures during tunnel fires, meeting fire smoke extraction requirements.
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Low-Noise Design
- Standard configuration includes 1D or 2D silencers (1 or 2 times the duct diameter) for effective noise control.
- Specially designed impeller and guide vanes minimize vortex noise through aerodynamic optimization.
Application Scenarios
Detailed Photos
Frequently Asked Questions
How quickly can the tunnel jet fan reverse its airflow direction?
The fan completes forward/reverse switching in just 30 seconds, making it ideal for urgent smoke extraction requirements during tunnel fires or other emergency ventilation situations.
What is the motor's protection rating and expected service life?
The fan is equipped with a fully enclosed squirrel-cage motor featuring Class H insulation and IP55 protection, making it suitable for humid and dusty tunnel environments. The expected service life exceeds 20,000 hours.
What noise reduction measures are included in the fan design?
The fan includes standard 1D or 2D silencers (one or two times the duct diameter) for effective noise control. Additionally, the specially designed impeller and guide vanes minimize vortex noise through aerodynamic optimization.
Is the fan suitable for high-temperature environments such as tunnel fires?
Yes. The fan is specially designed to withstand elevated temperatures during tunnel fires and fully meets fire smoke extraction requirements, ensuring reliable operation in critical emergency scenarios.
How are the fan blades manufactured and balanced?
The blades are die-cast from high-quality aluminum alloy and precisely balanced using German Schenck dynamic balancing equipment, ensuring smooth operation and minimal vibration throughout the fan's service life.
Does the fan support energy-saving operation modes?
Yes. An optional two-speed motor is available, which reduces the rotation speed under favorable natural ventilation conditions, providing additional energy savings and significantly lowering long-term operating costs compared to conventional axial fans.