Installation requirements of cold storage project

1. The refrigerated transport means shall meet the requirements of relevant standards. 2. The warehouse should be reasonably partitioned and set up with relevant signs to facilitate the storage, transportation and management of goods in the warehouse. 3. The warehouse should be equipped with emergency lighting, door lock opening and alarm devices, which can save themselves or call for help. 4. The shelves in the warehouse should have sufficient strength and rigidity. 5. The fence around the freezer door should be fortified with eye-catching signs. 6. The assembled cold storage should have a balance window. 7. The engine room should be equipped with oxygen respirator, gas mask, protective clothing, rubber gloves, cork, pipe clamps, acid drinks and other necessary protective articles and rescue drugs, and placed in an easily accessible position, managed by special personnel, and checked regularly to ensure use. Relevant personnel should be familiar with the use of oxygen breathing apparatus and other appliances and personnel rescue methods. 8. Refrigeration rooms with high-voltage control cabinets and power distribution cabinets should be equipped with special tools and protective articles for high-voltage electric operation. The design safety requirement of cold storage is 1. The cold storage of refrigeration system with ammonia as refrigerant should be built in the surrounding areas with low population density. 2. A master switch to cut off the power supply of the refrigeration compressor should be set outside the refrigerator door, which can stop the operation of all refrigeration compressors and set relevant signs. If the machine control panel is located in main control room, a button switch should be added next to each refrigeration compressor. 3. The room of ammonia refrigeration system should be equipped with emergency exhaust device; Accident exhaust fan should use explosion-proof motor. When the refrigeration system is cut off due to an accident, the reliable power supply of the accident exhaust fan should be ensured. The overload protection of the accident exhaust fan should be applied to the signal alarm system instead of stopping the exhaust fan directly. The control button box of the emergency exhaust fan should be hidden in the wall outside the ammonia compressor door. 4. Outdoor condensers, oil separators and other equipment should be fenced, and non-operating personnel are prohibited from entering, and signs should be set. When the high-voltage accumulator is located outdoors, there should be a sunshade. 5. The cold storage must be equipped with a transformer room and should be as close as possible to the compressor room. 6. The ammonia compressor room and high and low voltage power distribution room shall be provided with emergency lighting, and the lighting time shall not be less than 30 minutes. Explosion-proof lamps are used for the lighting of the machine room, and the illumination is 50-70Lx. 7. The ammonia compressor room should be equipped with an automatic measuring device for ammonia concentration, and when the ammonia concentration is close to 10% of the lower explosion limit, it should be able to send an alarm signal. 8. The ammonia compressor room should be equipped with a control room at one side of the room, and the temperature telemetering and recording instruments of the startup control equipment and power equipment that will generate sparks during startup and normal operation should be arranged in the control room. 9. Each refrigeration compressor, pump, cooling tower and other equipment motors shall be equipped with ammeters; When several motors are installed in the same air cooler and evaporative condenser, an ammeter can be used, and a set of control appliances and short-circuit protection appliances can be used, but each motor should be provided with overload protection separately. 10. The machine room door should be opened to the outside. The number of doors should ensure that people can leave quickly in an emergency. 1 1. Each refrigeration compressor shall be equipped with an emergency stop button on the unit console. 12. Where ammonia is easy to leak and ammonia liquid is concentrated, an ammonia dilution spray device should be set at the top. 13. A safe passage for maintenance and operation should be set in the machine room. 14. The illumination of the cold storage room, freezing room, cold storage room, freezing room and hall should not be less than 20Lx；; The illumination between the processing room and the packaging room should not be less than 50Lx. 15. The lighting lamps and lanterns in the cold storage should be arranged away from the ceiling air cooler and the top exhaust pipe, and the lamps and lanterns should be mainly distributed in the working passages in the warehouse and evenly arranged in the cargo hold. 16. The lighting switches in the warehouse should be moisture-proof switches or air-tight switches, and the lighting switches in each warehouse should be centrally installed outside the warehouse door and should be arranged far away from the door. 17. When the installation height of lamps in the warehouse is equal to or less than 2.2m, AC24V safe voltage should be used for power supply. The metal shell of lamps and lanterns should be connected with the protection line (PE line). The power and lighting lines in the cold storage below 18.0℃ shall be copper-core low-temperature resistant rubber insulated cables, with surface mounting. 19. Reliable fire prevention and cold bridge prevention measures must be taken for the electrical lines passing through the thermal insulation layer of the warehouse. 20. Electrical equipment and wiring shall not be installed in the attic of the warehouse. 2 1. The elevators in the cold storage should be distributed by the low-voltage distribution room with dedicated lines. 22. When mechanical ventilation is used as the cold storage for freezing prevention of underground soil, the ventilator should be able to run automatically according to the temperature of underground heating layer. 23. Cold storage design should comply with the relevant provisions of the fire.