When installing industrial fans in concrete structure factories equipped with overhead cranes (e.g., bridge or single-beam cranes), special attention must be given to the spatial layout, safety distances, and practical performance between the fans and the cranes. Here’s a detailed analysis and recommendations:

1. Compatibility Between Fans and Overhead Cranes

Crane Operation Path:

• Crane Movement: Cranes typically operate horizontally along tracks, and the hooks may move up and down. Ensure there is no interference between the hooks, cargo, and fan blades.
• Fan Installation Height: The industrial fan’s lowest installation point must be higher than the crane’s track or the highest position of the crane hook to prevent interference.
• Factory Ceiling Height:
• If the factory's clear height is relatively low, it may limit the fan diameter. Smaller fans (e.g., 12 feet or 15 feet) should be considered.
• If the clear height is sufficient, large-diameter fans (e.g., 20 feet or 24 feet) can be installed.

2. Key Considerations Before Installation

Distance Between Fan and Crane Tracks:

• The fan blades should maintain at least 3.3 feet of clearance from the horizontal plane of the crane tracks to avoid interference caused by vibrations or unexpected situations.
• Precise measurements are required to ensure a safe distance between the fan blades and the crane hook at its highest point.

Airflow Interference by Crane Movement:

• Crane movement may temporarily alter the fan’s airflow distribution, but it won’t significantly impact overall ventilation.
• Reasonably position fans to avoid placing them directly above the crane tracks.

Fan Mounting on Beams:

• Concrete structure factories typically have beam structures. Fans must be mounted on beams capable of supporting the required load (recommended load-bearing capacity ≥ 330 lbs).
• If the factory beams are too close to the crane tracks, a customized installation solution may be necessary.

3. Solutions and Optimization Recommendations

• Strategic Positioning: Install industrial fans outside the crane’s operational range to avoid direct interference while ensuring overall ventilation for the factory.
• Select the Right Diameter: Choose fan specifications based on the factory’s clear height and area (e.g., 18 feet or 20 feet diameter).
• Custom Fans: Opt for fans with adjustable suspension heights or customized low-height models to maximize clearance between the fans and the cranes.
• Professional Design Support: Work with suppliers like DHOO Technology for on-site assessments and design solutions to ensure compatibility and operational safety between the fans and cranes.

4. Important Notes

• Safety Measures: Place safety warnings or restrictions in areas where fans and cranes interact to prevent accidental operations.
• Routine Maintenance: Regularly inspect both the fans and cranes to ensure there are no loose components or wear and tear issues.
• Electrical Controls: Keep fan and crane controls separate to avoid accidental interference during operations.

For further design plans or technical support, DHOO Technology offers professional advice and customized solutions!