How much is the low-temperature quick-freezing warehouse design?
2023-03-03
Cold storage types are divided into structural forms:
- Civil engineering cold storage
- Prefabricated cold storage.
According to the nature of use:
- Production cold storage
- Distributed cold storage
According to the scale, it is divided into:
- Large-scale refrigeration
- Medium-scale refrigeration
- Small-scale refrigeration
According to the refrigeration equipment, the selection of work quality is divided into: ammonia refrigeration, Freon refrigeration. According to the use temperature requirements: high temperature refrigeration, low temperature refrigeration, refrigeration refrigeration. Refrigerated cooking ingredients and foods contain a certain amount of fat, protein and starch. The presence of these nutrients allows mold to multiply and grow. In order to do a good job in cold storage sanitation management and ensure the cold storage quality of food and cooking ingredients, it is necessary to carry out regular cold storage sanitation and disinfection. Acid disinfectants can be used for mildew removal and disinfection of cold storage.
How to maintain routine maintenance and operation of refrigeration system.
1. Initial operation unit: often observe the oil surface of the compressor, the oil return situation and oil quality, timely solve the oil dirty or oil surface decline, and avoid poor lubrication.
2. For the air-cooled unit: clean the air-cooled unit frequently to keep it in a good heat exchange state.
For water-cooled units: check the turbidity of the cooling water frequently, if the cooling water is too dirty, it should be replaced. Check the water system for running, popping, dripping, leaking. Whether the pump is working normally, whether the valve switch is effective, and whether the cooling tower. Whether the fan is normal. For the cooling unit: check the scaling problem of the condenser frequently, and deal with the scaling in time.
3. Air-cooled evaporator: Check the defrosting situation frequently. Whether the defrosting is timely and effective will affect the cooling effect and cause the refrigeration system to flow back.
3. Air-cooled evaporator: Check the defrosting situation frequently. Whether the defrosting is timely and effective will affect the cooling effect and cause the refrigeration system to flow back.
4. Always observe the operating status of the compressor, check its exhaust temperature, pay special attention to the operating status of the system, and adjust the supply and condensing temperature of the system in time.
5 Listen carefully to the running sound of the compressor, cooling tower, water pump or condenser fan, deal with abnormal situations in time, and check the vibration of the compressor, exhaust pipe and foundation.
6 Compressor maintenance: The internal cleanliness of the initial system is poor. Replace the refrigeration oil and dry filter after 30 days of operation, and replace it after half a year of operation (according to the actual situation). For a system with a high degree of cleanliness, the refrigeration oil and dry filter should also be replaced after half a year of operation, depending on the future situation.
Cold storage: maintenance of warehouse body.
After A is newly installed or long-term out of service, the A cold storage is used again, and the cooling speed should be reasonable: control it at 8-100C every day, and keep it at 00C for a period of time.
B Library board protection: Pay attention to the collision and scratches of hard objects on the library body during use. Because it will cause the sag and corrosion of the storage board, it will reduce the local thermal insulation performance of the storage body in severe cases.
C Sealing protection, since the pre-refrigerated storage is composed of several insulation boards, there is a certain gap between the boards, and the sealant is used to seal during construction to prevent air and water from entering. Therefore, repair some sealing failure parts in time during use.
D Floor protection, generally small prefabricated refrigeration floors use insulation boards. When using refrigeration, prevent the ground from having a lot of ice and water. If there is ice, do not use hard knocks for cleaning, which will damage the ground.
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