Modern Multi-Temperature Cold Storage Layout & Workflow
To ensure that vegetables remain under strict temperature protection throughout receiving, pre-cooling, sorted storage, and dispatch-completely avoiding temperature fluctuations that cause cold-chain breaks-the overall process flow is meticulously planned:
As shown above, upon arrival, vegetables enter the Receiving Area for unloading; they are immediately transferred to the Pre-cooling Room to remove field heat. Once cooled, they are distributed to specialized Chiller Rooms based on their variety. Finally, they are dispatched through a temperature-controlled Dispatch Area directly into refrigerated trucks, preventing any secondary warming.
SECTION 2: Technical Specifications & Performance Metrics
The following data is calculated based on a vegetable wholesale center with a daily turnover of 100 tons and an annual storage capacity of 20,000 tons.
| Core Metrics | CBFI® Intelligent Cold Storage | Traditional Cold Storage | Wholesale Operational Benefits |
| Effective Storage Capacity | 6,000 to 15,000 $m^3$ per chamber (5m ceiling height). Seamlessly expandable up to 30,000 $m^3$. | Low space utilization in brick-and-concrete warehouses; expansions require demolition. | Space utilization increased by 25%. Supports modular, step-by-step expansion as your business grows. |
| Zoned Temperature & Humidity Control |
Leafy Vegetables: 0°C to 4°C | 90% - 95% RH Root/Stem Crops: 4°C to 10°C | 85% - 90% RH Melons/Fruits: 5°C to 12°C | 80% - 85% RH |
Single temperature zone for mixed items; causes freezing damage or early ripening. | Air-tight physical barriers between zones completely prevent cross-contamination of odors and ethylene-driven ripening. |
| Pre-Cooling Efficiency | Core temperature drops to target range within 3 hours; average decay rate < 1.5%. | Cooling takes 12–24 hours; average decay rate reaches 4% to 6%. | Saves dozens of tons of vegetable waste annually, dramatically improving outbound produce appearance and wholesale premium. |
| Comprehensive Energy Consumption | Daily energy consumption is as low as 0.38 kWh/ton; features a waste heat recovery system, saving ~180,000 kWh/year. | Energy consumption reaches 0.8–1.2 kWh/ton; zero thermal heat recovery. | Cuts electricity operating costs by over 40%. Recovered heat is redirected for sub-floor heating (anti-heaving) and hot water. |
SECTION 3: Resolving Wholesalers' Core Concerns
1. Extreme Freshness & Dynamic Loss Control
Modified Atmosphere Preservation (MAP):
The system continuously monitors and fine-tunes the ratio of $O_2$ and $CO_2$ in the room (e.g., maintaining $O_2$ at 2% - 5% and $CO_2$ at $\le$ 3% for leafy greens). This low-oxygen environment slows down cellular respiration and metabolic processes, preventing nutrient loss.
Proven Results: Extends the shelf life of spinach from 3 days to 7 days, and slashes the moisture/weight loss rate of broccoli from 5% to just 0.8%.
Precision Dynamic Humidity Management:
Equipped with high-frequency industrial ultrasonic humidifiers and heavy-duty dehumidifiers, the system maintains humidity fluctuations within a tight margin of $\pm$ 3%. This keeps leafy greens crisp and hydrated without encouraging mold growth or sprouting in root vegetables.
Stereo Airflow & Thermal Isolation:
Customized air ducts and return paths prevent the "hot top, cold bottom" phenomenon common in high-ceiling (5-meter) storage rooms. Heavy-duty sliding doors with premium seals completely isolate the environments between adjacent storage chambers.
2. Rapid Processing & Seamless Cold-Chain Integration
Forced Convection Pre-Cooling System:
Freshly harvested vegetables carry intense "field heat." If stacked directly, localized heat accumulation causes rapid rot. Our forced-convection pre-cooling system uses high-pressure fans to pull cold air through the packaging ventilation holes, dropping 20°C crops to their target storage temperature within 20 minutes.
RFID Smart Inventory Management:
Cold storage racks and pallets are integrated with RFID tags. The system registers goods by entry time, origin, and ripeness, suggesting optimal "First-In, First-Out" (FIFO) forklift picking routes to improve overall logistics efficiency by 35%.
Zero-Break Sealed Loading Bays:
The dispatch area connects directly to a 0°C to 5°C closed, low-temperature loading dock equipped with inflatable dock seals. Refrigerated trucks seal tightly against the dock door before opening their cargo hold, maintaining a temperature difference of < 2°C during loading.
SECTION 4: Frequently Asked Questions (FAQ)
Q1: Our wholesale vegetable varieties change seasonally. How fast can we adjust storage parameters?
A: Our control system features one-touch scenario presets. Operators can simply tap "Leafy Greens Mode", "Root & Stem Mode", or "Melon & Fruit Mode" on the central touchscreen or mobile app. The system automatically loads the ideal temperature, humidity, fan speed, and gas composition parameters. You can also customize and save your own temperature profile curves.
Q2: How does the cold storage prevent ground condensation, which leads to rotting at the bottom of pallets?
A: Ground condensation occurs when the surface temperature falls below the dew point of the warm air entering the room. CBFI integrates an intelligent floor heating system (sub-floor ventilation and heating) below the moisture-proof aluminum foil layer. The control system monitors the dew point in real-time, keeping the ground surface temperature 1°C above the dew point and ensuring dry floors year-round.
Q3: How do you prevent temperature spikes inside the main cold storage when large volumes of warm, fresh-procured goods are loaded at once?
A: This is a major issue with traditional cold storages. To solve this, CBFI incorporates a 500 $m^3$ high-efficiency buffer pre-cooling chamber. All incoming warm shipments undergo "first-stage rapid heat extraction" in the buffer chamber. Once their temperature drops close to the safe storage threshold, they are moved to the main storage. This gradient cooling design shields your existing inventory from heat shocks and prevents compressor overload.
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