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Key points of structural design and key technical control of fruiting room

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• New fixed - bed fruiting rooms are large warehouse - style structures, usually 20 - 36m long, 7 - 10m wide, 7.5 - 9m high, with 10 - 13 - layer bed frames. Core designs cover bed frames, automatic loading/unloading machines, fresh air treatment, ventilation, lighting, refrigeration, humidification, and an integrated environmental control system. Below is a summary using an example: 28 fruiting rooms, each holding 49,920 mushroom bags.  

• 1. Warehouse Basics  - Size: 25m (L) × 7m (W) × 7.5m (H)   - Layout: 2 working passages, each with a door

•   2. Bed Frame Design  - Material: Galvanized steel (welded or screwed)   - Structure: 4 rows/room, 13 sets/row, 10 layers/set (52 sets total/room); each set is 1.75m × 11m × 0.55m, bottom layer 30cm above ground   - Clearances: 0.85m passages between rows; ~0.3m convection gaps between frames; ~1m from frames (door/back) to wall   - Capacity: 960 bags/set (80 baskets), 49,920 bags/room  

• 3. Automatic Loading & Unloading  - Loading: RSJ - 913 - 3 machine + 50m mobile telescopic conveyor; ~50,000 bags loaded in 4 - 5 hours/room   - Unloading: Semi - automatic (lifting vehicle + conveyor) now; fully automatic machines (developed, under improvement) to be widely used later  

• 4. Fresh Air Treatment System  - Setup: 2 units (30,000 m³ air volume each) for 30 rooms; each has 360kW cooling evaporator (chilled water from main refrigeration room) and heating coil (recovered hot water from main room)   - Temp control: Set by mushroom species’ fruiting temp, generally ±2°C of the room’s max required temp  

• 5. Refrigeration System   - Equipment: 4 air coolers/room (25kW cooling each), can blow air both ways (middle - to - ends/ends - to - middle)   - Control: Linked to main chilled water pipe; branch pipes have proportional valves (auto adjust water flow); coolers have frequency converters   - Adjustment: Parameters (valve opening, converter speed, fan circulation time) tuned by mushroom species, growth stages, seasons

•  6. Ventilation System   - Fans: 2 intake (3,000 m³ each), 4 exhaust (1,500 m³ each, 2 front/2 back)   - Linkage: Low CO₂ stage → intake/exhaust fans linked with coolers (coolers start with fresh air for uniform ventilation); high CO₂ stage → no need for integrated system switching  

• 7.Humidification System  - Equipment: 1 mobile humidifying blower/aisle (42kg capacity each), connected to integrated system   - Adjustment:    - Total humidity: By humidifier operation cycles    - Shelf humidity: By port size    - Location humidity: Auto start/stop (e.g., stop under cooler return air outlets (high humidity), resume after)   - Dual use: Blower for drying when not humidifying

•  8. Lighting System   - Equipment: LED strips (blue/white switchable)   - Control: 12 - way independent control (per bed row, per row’s top/middle/bottom) via integrated system   - Application: Light source/timing set by growth conditions; adjust timing for uneven growth to ensure uniformity  

• 9. Integrated Environmental Control System   - Components: PLC, touch screen, inverter, sine wave filter, plus controllers for refrigeration, lighting, fresh air, exhaust, humidification   - Functions: Auto control equipment, adjust env params (temp, humidity, light, ventilation) for optimal growth; save/transmit data   - Future: More accurate/intelligent via IoT + AI large models (real - time growth monitoring, auto param adjustment) to boost efficiency and mushroom quality/yield