Core Functions

1. Air flow Rectification: Delivers uniform smooth incoming airflow into tower housing, minimizing turbulence and flow maldistribution, improving thermal performance and lowering fan power consumption.

2. Debris Protection: Blocks leaves, plastic litter, birds and foreign debris, safeguarding fill, fans and spray nozzles from clogging or mechanical impact damage.

3. Splash Water Retention: Reduces outward water splashing, limits water loss and prevents ground water pooling around tower unit.

4. Personnel Safety Barrier: Separates operators from rotating fan assemblies to avoid accidental contact with moving internal components.

Structural Form

1. Fixed Grille (Standard): Integral frame with multiple angled parallel slats, bolted directly onto tower air intake face; full disassembly required for access and maintenance.

2. Modular Removable Grille: Segmented modular panels for individual removal, convenient for cleaning fouling and internal inspection; preferred for large cooling towers.

3. Louver Type Movable Grille: Pivotable slats for adjustable air intake volume in selected operating conditions; higher procurement cost.

Commonly Used Materials

1. FRP (Fiberglass Reinforced Plastic): Industry standard for open cooling towers; water resistant, corrosion resistant, lightweight, UV aging resistant with moderate cost.

2. PVC / PP Plastic: Injection molded low cost alternative; prone to embrittlement under prolonged outdoor solar exposure; mainly deployed on small cooling towers.