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Multi-Span Film Greenhouse

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Optimized Multi-Span Film Greenhouse Solution: Precision Agriculture with Cost-Efficiency
(Designed for Crop Cultivation, Seedling Production, and Eco-Tourism)

 


Structural Design & Material Innovation

  1. High-Strength Framework

    • Modular Architecture: Standardized 8m span × 4m bay design with adjustable eave height (3-5m) and ridge height (5.2-5.7m), achieving 90%+ spatial efficiency.
    • Anti-Corrosion Steel: Hot-dip galvanized Q235 rectangular steel (main columns: 100×50×2.0mm; arches: φ32×2.0mm) with ≥80μm zinc coating, supporting wind/snow loads up to 0.5kN/m² and 0.35kN/m².
    • Dual-Layer Drainage: Curved roof design enhances rainwater runoff, paired with 2.0mm cold-bent galvanized gutters (140mm/hr drainage capacity).
  2. Advanced Cladding Materials

    • Top Cover: Optional 12-15μm PO film (85%+ light transmission, anti-condensation) or 8mm polycarbonate (PC) hollow sheets (89% transparency, 200x impact resistance of glass).
    • Sidewalls: Customizable with double-layer inflatable film (40% better insulation) or PC panels for northern climates.

 

Smart Environmental Control Systems

  1. Climate Management

    • Cooling: Cross-ventilation via east-side exhaust fans + west-side wet pads (5-8°C temperature drop).
    • Heating: Integrated gas/electric systems with natural ventilation through roll-up side films.
    • Light Optimization: Adjustable 65-85% shading nets + inner thermal screens; optional LED grow lights (PAR ≥200μmol/m²/s).
  2. IoT-Driven Automation

    • Real-Time Monitoring: Sensors track air/soil temperature, humidity, CO₂, and light intensity, syncing with actuators (shading, irrigation, ventilation).
    • Remote Control: Mobile app access for data analytics, crop growth modeling, and disease alerts.

 

Key Applications & Flexibility

  1. Agricultural Production

    • High-Yield Farming: Ideal for tomatoes (20,000 kg/acre), dwarf fruit trees, and mushrooms via movable tidal seedling beds (50kg/m² load capacity).
    • Seedling Cultivation: 20% higher germination rates with precise microclimate control.
  2. Multi-Functional Expansion

    • Eco-Tourism: Adaptable for agritourism (e.g., educational centers, farm-to-table restaurants).
    • Research & Breeding: Supports hydroponics, tissue culture labs, and variable isolation trials.

Cost-Effectiveness & ROI

  • Budget-Friendly: Construction costs 220-300 RMB/m² (1/3 of glass greenhouses) with 40-57% energy savings.
  • Durability: 25+ year lifespan; annual maintenance <5 RMB/m².
  • Scalability: Modular design allows rapid expansion; ROI within 3-5 years
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