When the cooling capacity is small, semi hermetic reciprocating compressors are generally used. Freon refrigeration systems generally use scroll compressors and semi-hermetic or hermetic compressors. In the cold room applications, we mainly use reciprocating compressors, screw compressors and scroll compressors.Īmmonia refrigeration systems generally use open-type compressors, mainly using open screw compressors. According to the scale of the cold room and the design temperature, the rational selection of the refrigeration compressor unit is the key to the design of the refrigeration system. The compressor is the heart of the refrigeration system. The most important in purchasing cold room panels is the density and air tightness of the panels.Ģ, Refrigeration system compressor unit choice: The quality of cold room panels is also an important reason to affect the cold room temperature. The surface materials has galvanized color steel, stainless steel, and aluminum sheet.
Jointing type is Cam lock, tongue and groove, hook and pin. There are Pu panels, PUR panels and PIR panels. The polyurethane cold room panels is made of lightweight polyurethane as the inner material of the cold room panels. Medium-sized cold storage 1000-10,000 tons Ultra-low temperature cold room design temperature (-30~-80☌) Low temperature cold room design temperature (-23~-30☌) Medium temperature cold room design temperature (-10~-23☌) High temperature cold room design temperature (-2~8☌) The cascade system is more expensive than the traditional ammonia and Freon system. The high-temperature field is suitable for loading. The low-temperature field is more suitable for cascade. For environmental protection, large-scale cold storage The Freon system should be avoided as much as possible.ĬO2: The cold storage application is mainly based on cascade system and loading system. It is suitable for small and medium-sized cold storage and large-scale cold storage with limited ammonia. There is a trend toward miniaturization and modulation, with an emphasis on improving safety and reducing the amount of charging.įreon: It is widely used in cold storage to disperse refrigeration. 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). The refrigeration system of the cold room is still a core component of the construction of the entire cold storage room.ġ, Cold room refrigeration system refrigerant:Īmmonia: the oldest in history, the best choice in the field of industrial refrigeration worldwide.
It is also a constant temperature and humidity storage room for foods, liquid, chemical, pharmaceutical, vaccine, scientific experiments and other items. Cold room is a building warehouse using refrigeration machine to reach a certain temperature and has insulation to hold the temperature.