The project is a multi-storey civil engineering cold storage designed by the Beijing Institute of Internal Trade,with a single floor area of 8000 square meters,a total of 4 floors,and a floor height of 5.6 meters.It uses Freon 507 refrigerant,8 York open type large screw units,4 barrel pump units,and a full system of hot fluorine defrosting.A single cold fan has more than 70 welds,186 cold fans,and a temperature of-20℃;This project is constructed in the rainy season.Due to the extremely high requirements for cleanliness and dryness of the Freon system,the company has overcome the frequent and rainy weather and delivered it for one-time commissioning and use.
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