Xin Feng Mini-Classroom---Application and Selection of Stainless Steel Fans in Different Settings

The selection of stainless steel fan types should be based on the specific conditions of the industrial building, prioritizing models that align with the original dialogue box restrictions.

Stainless steel fans and cooling water curtains should maintain consistent distances whenever possible (ideally installed on both sides of the industrial building's gable walls) to achieve optimal natural ventilation. The exhaust system side should be positioned as far as feasible from adjacent structures to prevent harm to nearby residents.

Stainless steel fan pressure: This refers to the pressure increase achieved by overcoming friction resistance throughout the entire airflow delivery process. However, domestic fan models are typically rated based on the motor's rated power. while international standards allow slight increases. The residual pressure of the main unit equals the fan motor's rated power minus the friction resistance of each sedimentation section in the box-type fan. When delivered to ventilation ducts, the pressure is typically 7–8 Pa/m, and 10 Pa/piece at 90-degree bends.

When heating, cooling, or fresh air supply systems are required, the flow of heated or cooled air should be directed toward workers whenever possible. Therefore, stainless steel fans or sidewall fans are frequently used.

For fire safety smoke exhaust systems, roof ventilators or elevated ductwork should be the primary choice. Consequently, duct fans are often employed.

Note: Utilize natural airflow whenever feasible (fan direction and configuration must be effectively set).

When inspecting warehouse logistics for flammable or explosive goods (e.g., paint storage), explosion-proof series fans must be selected. For noise requirements, choose roof ventilators or eco-friendly centrifugal fans. For gas ventilation in warehouses, international axial fans SF or exhaust fans FA are suitable.

Restaurant Kitchen Exhaust Systems: For kitchens directly venting cooking fumes indoors (i.e., exhaust outlets within room walls), select SF axial fans or French exhaust fans based on fume intensity.

For restaurants and kitchens with heavy fumes requiring long ductwork with bends, centrifugal fans are strongly recommended (4-72 centrifugal fans offer broader applicability, while 11-62 low-noise energy-efficient centrifugal fans also perform exceptionally well). Centrifugal fans generate higher operating pressure than axial fans, and since kitchen fumes bypass the motor, they facilitate easier maintenance and reduce frequent motor replacements. Kitchens with particularly intense fumes should consider dual-fan configurations for optimal efficiency.

Natural Ventilation for Advanced Venues

For natural ventilation in high-rise venues like hotel restaurants, teahouses, cafes, entertainment rooms, and karaoke lounges, conventional fans are not recommended.

For small room ventilation, where ducts connect to central ventilation systems, lightweight, aesthetically designed plastic or aluminum, low-noise, high-airflow small-to-medium axial fans are generally suitable.

For applications with stricter requirements for airflow and noise levels, fan enclosures are a viable option. These enclosures contain sound-absorbing cotton within the housing. When externally connected to the central ventilation ductwork, they achieve significant sound insulation and noise reduction effects.

For blowers in fitness club rooms, prioritize industrial electric fans with high airflow capacity. Avoid SF-type rear-mounted axial fans. This decision is based on considerations of external appearance and safety factors.