What issues should be considered when building large-scale cold storage facilities in Chongqing?

1、 Chongqing Large Cold Storage Design Knowledge Notice

1. Building structure type: Based on the positioning of the cold storage, whether it focuses on long-term storage or frequent turnover transactions. If the storage capacity is large, the storage time is long, the land usage is sufficient, and the land cost is economic, multi-layer civil engineering cold storage can be used. Multi story cold storage, with loading and unloading platforms on the first floor. After entering the enclosed platform, it is transported by elevator to the second and third floors, and then transported to the warehouse by forklift. If the storage cycle is short and daily transactions are frequent, in order to improve the efficiency of turnover and distribution, fast in and out, it is advisable to use a single-layer steel structure building structure with assembled warehouse board insulation structure for cold storage. The advantages of steel structure are fast construction period and easy construction. The cold storage body is rectangular, and multiple loading and unloading platforms can be set up on multiple sides.

2. Large cold storage facilities should use appropriate levels and types of shelves according to the storage of goods. For agricultural products, pallets, heavy-duty crossbeams, and drive-in shelves should be used. Standardized and automated loading pallets can be built as needed. Example of cold storage technology and engineering cost: We will construct a 3000 ton/15000 cubic meter cold storage (nonControlled Atmosphere Storage）Used for storing fruits, vegetables, poultry and meat agricultural products and food. According to the characteristics of the goods, the design and construction plan is based on the refrigeration of fruits and vegetables (0-10 ℃) accounting for 2000 tons/11000 cubic meters, and the refrigeration of poultry and meat (-18-25 ℃) accounting for 1000 tons/4000 cubic meters. The fruit and vegetable refrigerated storage is divided into 7 compartments: 1000 cubic meters for two compartments, 2000 cubic meters for two compartments, and 3000 cubic meters for three compartments, totaling 15000 cubic meters.

2、 Structure of Chongqing Cold Storage Building

Adopting a one-story steel structure building, it covers an area of 28 meters wide and 67 meters long, with a cold storage height of 8 meters and a steel structure top height of 10 meters. 5 meters below the outer edge of the steel structure, and 5 meters below the top are enclosed by the steel structure and EPS insulation board. The structural dimensions of the building are 67 meters long, the width of the warehouse is 28 meters, and the width of the unilateral platform is 7 meters. The elevation of the steel structure is 10 meters, and the net height of the cold storage is 8 meters. Cold storage covers an area of 1876 square meters, with a platform of 67 × 7=402 square meters. The height is 10 meters. The area of the refrigerated truck and surrounding flat land has not been calculated. Only the cold storage section is planned here.

3、 Cost of Steel Structure for Chongqing Large Aquatic Cold Storage Warehouse

The preliminary valuation is based on the Chongqing region, with an estimated cost of approximately (450 500) yuan per square meter × (28+7)=around 170000 yuan (including platform), approximately 1.1 million yuan Cold storage cost: 67 × twenty-eight × 8=15000 cubic meters, 15000 cubic meters * 220/cubic meter=330000 yuan (including cold storage insulation, refrigeration system, pipeline electrical control, construction costs, and all other costs). 1.2 million yuan for the building part+3.3 million yuan for the cold storage part=4.5 million yuan. (Actual prices vary) Peak electricity consumption of refrigerated storage: Based on calculations and practical experience, the daily electricity consumption of 1 ton of fruits and vegetables in a large refrigerated storage is about 0.64KW/ton, the low-temperature refrigerated storage is about 0.31KW/ton, and the 15000 cubic meter refrigerated storage has an approximate monthly electricity consumption of 0.64 × 3000 tons × 30 days=57600 kilowatt hours of electricity, with an annual start-up period from April to October in the Chongqing region, which requires approximately 576 kilowatt hours × 7=400000 kilowatt hours of electricity. In fact, the working hours and storage types of opening and closing warehouse doors vary among different operating enterprises.