FRP Blowers and Fans
The FRP blower and fan is a heavy-duty air-handling system fabricated using premium synthetic resin as the structural matrix and high-strength fiberglass as the reinforcing composite metallurgy. This corrosion-resistant fan is engineered to eliminate the severe rust, short lifespan, and mechanical fatigue problems common to conventional metal fans when exposed to aggressive manufacturing environments.
Driven by an industrial electric motor, the aerodynamically optimized impeller rotates at high velocities to create a strong pressure differential. Corrosive ambient air or chemical fumes are drawn into the housing via the suction inlet, accelerated smoothly through the impeller blades, and safely exhausted out of the facility or into abatement scrubbers. It serves as the primary engineering framework for chemical fume extraction, air purification, and active air circulation across electroplating, anodizing, pickling, electro-coagulation, and chemical etching lines.
Zhichengda offers a complete, fully customizable industrial power spectrum spanning from 1 kW to 100 kW:
Power Supply Input: Mainstream 3-phase AC 380V ±10% at 50Hz; Single-phase AC 220V available for low-power laboratory units (≤3 kW).
Ingress & Safety Protection: Motors are standard-rated at IP54 or IP55. Explosion-proof configurations (Exd II BT4) and severe-corrosion protection layers are available.
Thermodynamic Efficiency: Achieves ≥80%–85% aerodynamic efficiency, minimizing factory carbon footprints and lowering continuous operational energy costs.
Step 1: Determine the Fan Archetype
Centrifugal Fans (F4-72 / GF4-72 Series): Delivers high static pressure. Ideal for long, tortuous duct networks and acting as the main extraction engine for industrial wet spray scrubbers. Typically specified from 7.5 kW and above.
Axial Fans (BFT35 / GFT35 Series): Delivers high volumetric flow rate with low static pressure. Optimized for localized tank-side lip exhaust or direct workshop wall-flushed ventilation. Typically deployed within the 1–15 kW range.
Resin Adaptability: Standard applications utilize Orth phthalic or Isophthalic polyester resins; aggressive chemical streams with concentrated mineral acids require premium Vinyl Ester resins.
Step 2: Core Engineering Calculations
Volumetric Air Flow Rate (m³/h): Calculated based on total workshop cubic envelope, targeted air changes per hour (ACH), or tank lip face velocity.
- General Workshop ACH: 6 to 10 air changes per hour.
- Tank Lip Face Velocity: Regulated at 0.5 to 1.0 m/s across the solution surface.
- Scrubber Matching: Aligned with the scrubber's rated volumetric capacity (e.g., a 10,000 m³/h wet tower pairs with an 11–15 kW blower).
Static Pressure (Pa): Formulated by calculating the cumulative friction loss of the ductwork length, elbows, transitions, and the internal resistance of the wet scrubber.
- Short Direct Exhaust: 300 to 800 Pa.
- Long Ducting + Wet Tower: 1,500 to 3,000 Pa.
- Ultra-Long Centralized System: 3,000 to 5,000 Pa.
Gas Stream Temperature: Standard builds operate at ≤60°C; thermal gas streams up to ≤80°C require specialized Vinyl Ester formulations.
Step 3: Power Rating Verification
By cross-referencing calculated flow rates and static pressures with our standardized impeller performance curves, the optimal motor wattage is selected:
- 10,000 m³/h at 1,500 Pa →11 kW Centrifugal Blower
- 20,000 m³/h at 2,000 Pa →18.5 kW Centrifugal Blower
- 30,000 m³/h at 2,500 Pa →30 kW – 37 kW Centrifugal Blower
- 50,000 m³/h at 3,000 Pa →55 kW – 75 kW Centrifugal Blower
- 100,000 m³/h at 3,500 Pa →90 kW – 100 kW Custom Heavy-Duty Blower
Step 4: Structural Customization Options
Drive Arrangement Types: Available in Type A (Direct Drive via motor shaft), Type C (V-Belt & Pulley Drive for adjustable speeds), and Type D (Flexible Coupling Drive for decoupled vibration).
Advanced Tailoring: Includes Left-Hand/Right-Hand rotation orientations, multi-angle discharge casing rotations, Variable Frequency Drive (VFD) speed loops, PLC centralized automation linkage, heavy-gauge SUS316 structural fasteners, integrated housing liquid scroll drains, and hermetically sealed anti-corrosion bearing blocks.
