Cold storage door sealing and heat load control are the keys to cold storage insulation and refrigeration. Frequent opening of the cold storage door and excessive heat load will damage the temperature and humidity balance inside the cold storage, becoming a common hidden danger affecting the stable operation of the system, and increasing energy consumption and equipment burden.

         Frequent opening of the cold storage door will cause a large amount of external hot air to pour in, break the internal low-temperature environment, force the refrigeration system to operate under overload, and intensify compressor wear; excessive heat load will reduce refrigeration efficiency, lead to difficulty in cooling, and may even cause unit failures and shorten the service life of equipment.

         It is necessary to standardize the use of the cold storage door, reduce unnecessary opening frequency, check and maintain the sealing performance of the cold storage door, reasonably control the heat load, ensure the stability of temperature and humidity inside the cold storage, guarantee the efficient operation of the refrigeration system, and reduce operation and maintenance costs.