A cold room for food storage is a specialized facility designed to maintain specific temperature and humidity levels to preserve perishable food items. It is a controlled environment used to extend the shelf life of various food products, such as fruits, vegetables, meat, dairy, and seafood. Cold rooms are commonly used in restaurants, hotels, supermarkets, food processing plants, and other facilities where large quantities of perishable goods need to be stored.
How to make a cold room for food storage?
1. Determine Requirements:
Assess the amount and types of food you plan to store.
Calculate the required storage space.
Decide on the temperature range needed for your specific food items.
2. Choose the structure:
Samll cold room will be installed in an exsiting warehouse or factory. Large cold room will be installed on an empty land, there are several structures: Civil engineering cold room building; Steel structure cold room; Mixed structure
3. Cold room refrigerant:
Ammonia: the oldest in history, the best choice in the field of industrial refrigeration worldwide. Due to the characteristics of the ammonia system, it is generally used for centralized refrigeration, with a special machine room for large-scale refrigeration systems (more than 10,000 tons of cold storage). There is a trend toward miniaturization and modulation, with an emphasis on improving safety and reducing the amount of charging.
Freon: It is widely used in cold storage to disperse refrigeration. It is suitable for small and medium-sized cold storage and large-scale cold storage with limited ammonia. For environmental protection, large-scale cold storage The Freon system should be avoided as much as possible.
CO2: The cold storage application is mainly based on cascade system and loading system. The low-temperature field is more suitable for cascade. The high-temperature field is suitable for loading. The cascade system is more expensive than the traditional ammonia and Freon system.
4. Cold room temperature:
High temperature cold room design temperature (-2~8°C)
Medium temperature cold room design temperature (-10~-23°C)
Low temperature cold room design temperature (-23~-30°C)
Ultra-low temperature cold room design temperature (-30~-80°C)
5. Cold room refrigeration compressor unit:
In the cold room applications, we mainly use reciprocating compressors, screw compressors and scroll compressors.
Ammonia refrigeration systems generally use open-type compressors, mainly using open screw compressors. Freon refrigeration systems generally use scroll compressors and semi-hermetic or hermetic compressors. When the cooling capacity is small, semi hermetic reciprocating compressors are generally used. When the cooling capacity is large, open screw compressors are generally used. In order to meet the economic requirements of the refrigeration system under different load conditions, and to ensure the reliability of the operation of the refrigeration system, the compressor unit can be used in parallel with multiple compressors.
6. Professional Help: Consult with professionals, such as architects, refrigeration technicians, and contractors, to ensure a successful project.
Remember, building a cold room requires expertise, especially when it comes to refrigeration systems. Consult with professionals to ensure your cold room is efficient, reliable, and complies with all safety standards and regulations.