The Reed Grain Cooling Unit is a mobile device specifically designed through comprehensive analysis of China's grain storage environment characteristics and climate features. It serves as a crucial means for grain reserve depots to achieve green grain storage and scientific grain preservation goals. Its function is to cool and humidity-regulate air, then blow air of suitable temperature and humidity for the stored grain characteristics into the warehouse.

I. Application Scenarios

Grain cooling and dehumidification operations in flat warehouses

Grain cooling and dehumidification operations in shallow circular silos

Grain cooling and dehumidification operations in vertical silos

II. Scope of Application

Emergency handling of heated grain storage High moisture grain storage

Low-temperature storage of high-quality rice

III. Working Principle

The Reed Grain Cooling Unit utilizes an air circulation treatment method to draw untreated air into the unit's air treatment section. After cooling and dehumidification treatment, the air enters through the grain warehouse air inlet into the underground air duct system, where it is delivered from the bottom to the base of the grain pile. Due to negative pressure, the cool air gradually flows upward and diffuses, reducing the grain temperature. Finally, the air passes through a certain thickness of the grain layer and returns from the warehouse exhaust outlet back to the unit's air inlet. Through this cyclic process, the grain layer gradually reaches the predetermined temperature after a certain period. The air circulation principle is detailed in the following diagram:

IV. Technical Advantages

1. Stable and reliable performance, high energy efficiency utilization rate

All unit components use world-renowned brands that comply with EU standards. Combined with self-developed high-efficiency heat exchangers and unique air duct design, the overall unit performance exceeds national standards by 2%.

2. Multiple cooling forms to meet requirements of different regions

Depending on regional usage conditions, we can provide various types of grain cooling units including evaporative cooling, geothermal cooling, natural air cooling, and water cooling. These fully meet the needs of special regions such as arid water-scarce areas, high-temperature high-humidity regions, extremely cold low-temperature zones, high-altitude sandy areas, and coastal salt fog corrosion regions.

3. Significant low-temperature grain storage effects, adaptable to various environmental conditions

Various functional sections can be selected to complete air purification and temperature-humidity regulation to meet environmental requirements. Can introduce 0-100% fresh air to maintain indoor air freshness, achieving indoor regulation and ventilation even during transitional seasons; Through supporting automatic control functions, independent regulation of small spaces can be achieved with energy efficiency, and equipment exhausts hot air upward without interference from environmental wind directions.

4. Frequency conversion control

Automatically adjusts air supply volume through fan frequency conversion technology based on temperature changes inside the grain warehouse, thereby improving unit efficiency and achieving optimal warehouse temperature and humidity conditions.

5. Easy equipment mobility

The unit chassis features movable pulley design allowing rotation between multiple grain warehouses, resulting in high equipment utilization rate.

6. Automatic control system

Utilizes PLC and touch screen full automatic control, making operation simple and convenient.

7. Remote control

Field equipment has remote communication functionality using Modbus RTU communication protocol, equipped with RS 485 communication interface, enabling remote monitoring and operation of equipment.

Air-cooled Mobile Grain Cooling Unit

Unit Model GCA55
GCA85 GCA100
Standard Condition Cooling Capacity (KW) 55 85 100
Outlet Air Temperature (°C) 5~15
Outlet Air Relative Humidity (%) 65~90
Power (KW) 29.8 42.3 55.9
Power Supply 3N~380V 50HZ
Refrigerant
R410A, R407C or R22

Dimensions (L*W*H) mm 2800*2000*2200 3200*2000*2400 3400*2000*2750
Weight (kg) 2700
3150 3890
Safety Measures
High pressure, low pressure, overload, overcurrent, phase loss safety protections and alarm measures



Water-cooled Grain Cooling Unit

Unit Model GCW55 GCW85 GCW100
Standard Condition Cooling Capacity (KW) 55
100
Outlet Air Temperature (°C) 5~15
Power Supply 14 20 27
Refrigerant 18.5 28.5 42
Dimensions (L*W*H) mm R410A, R407C or R22

Weight (kg)

Safety Measures High pressure, low pressure, overload, overcurrent, phase loss safety protections and alarm measures
Note:

1. Nominal conditions: Inlet air 30°C, RH81%, Outlet air 12°C, RH75%.

2. The above parameters are for reference only. Changes in working conditions may result in different cooling capacities. For specific data, please contact Reed. 3. Products can be customized according to customer requirements, such as non-standard power supplies.


VII. Economic Benefit Analysis (Based on 35,000 tons of rice in fixed reserve at a test storage site)

1. Reduced storage costs

Using conventional storage methods such as ventilation, warehouse transfer, and fumigation, the annual direct storage costs total 195,000 yuan; Using the Reed Grain Cooling Unit storage method saves conventional operation expenses like fumigation and warehouse transfer, with total direct storage costs amounting to 91,000 yuan, saving 104,000 yuan.

2. Avoided grain loss

Using Reed Grain Cooling Unit storage reduces grain respiration dry matter loss, moisture reduction loss, and transfer loss, totaling about 1.08% of total stored grain. This avoids grain shortage of approximately 378 tons. Calculated at rice price of 1,200 yuan/ton, this prevents economic loss of about 450,000 yuan.

3. Increased sales price

The refined rice processed from rice stored with Reed Grain Cooling Unit closely resembles refined rice processed from fresh rice in both sensory quality and edible quality. When sold out of storage, the price per ton increases by 60 yuan, generating profit of 2.1 million yuan.

4. Saved rotation costs

Based on its quality change rate, the storage period can be extended by 2-3 years compared to conventional storage conditions. If extended by one rotation cycle, with rice rotation cost calculated at 70 yuan/ton, rotation costs can be saved by 2.45 million yuan.