Cold storage

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      Intelligent energy-saving combined refrigerated and frozen storage

      The intelligent energy-saving combined refrigeration and freezing storage adopts a cold storage energy-saving intelligent defrosting control device, which can achieve the goal of good heat dissipation and rapid cooling of the cold storage energy-saving intelligent defrosting control device. This ensures that the control device itself will not be damaged by electronic components due to overheating during long-term operation, further meeting people's usage needs and making people safer, more reassuring, efficient, and energy-saving.

      Features of intelligent energy-saving combined refrigerated and refrigerated warehouses:

      The combined refrigeration and freezing warehouse can be built according to the terrain structure and adopts a series of configurations such as advanced intelligent energy-saving units. Under the same conditions of horsepower, cubic meter, empty storage, environmental temperature, and cooling, the power consumption of this cold storage unit is more than 30% -50% energy-saving compared to the power consumption of ordinary cold storage.

      Advantages of intelligent energy-saving combined refrigeration and freezing warehouses:

      (1) Improve the efficiency of cold storage refrigeration devices, reduce energy consumption and production costs for cold storage companies;

      (2) Optimize the structure of the integrated refrigerator and the refrigeration system process, and carry out Energy saving and intelligent defrost control technology;

      (3) Effectively reduces refrigerant flow loss and heat exchanger wind resistance loss;

      (4) Suitable for hot gas defrost and fuzzy adaptive defrost of refrigerators used in cold storage Control technology solves the problem of excessive defrosting of the refrigerator.

      Agricultural and sideline products fresh-keeping cold storage

      The most suitable temperature for preservation and storage of most agricultural products is around 0℃. The minimum temperature for keeping fruits and vegetables fresh is -2℃, which is a high-temperature warehouse; while the preservation temperature for aquatic products and meat is below -18℃, which is a low-temperature warehouse.

      Characteristics of agricultural and sideline products:

      For most fruits such as apples, pears, grapes, kiwis, apricots, plums, cherries, persimmons and other northern deciduous fruit trees, the ideal storage temperature is between -1°C and 1°C. The ideal temperature index is different for different varieties, site conditions, etc. There are also different requirements for long-term storage, short-term storage, early and late storage, and generally need to be finalized through preservation tests.

      Above temperature reference indicators all refer to the temperature of the product or close to the temperature of the product. Normally, the temperature of the product is between the upper and lower limits of the temperature in the warehouse.

      Advantages of agricultural and sideline products:

      (1) Small cold storage unit has small capacity, easy to control, and convenient entry and exit;

      (2) Rapid cooling, stable temperature, low power consumption, and high degree of automation;

      (3) Flexibility, operability, The energy saving effect and economic effect are good.

      ·The suitable temperature for winter dates and garlic moss is -2~0℃

      ·Citrus 3~6℃

      ·The suitable temperature for peach fruit is 0~4℃

      ·Tomatoes and green peppers 10℃

      ·Strawberry 0~1℃

      ·Carrots and cauliflower Around 0℃

      · Watermelon 4~6℃

      · Ginger around 12℃, grains and rice 0~10℃

      · Banana 13℃

      Quick frozen cold storage, ultra-low temperature cold storage

      Quick freezing cold storage refers to the method by which food quickly passes through its maximum ice crystal formation zone and freezes rapidly when the average temperature reaches -18 ℃. During the freezing process, food undergoes various changes, such as physical changes (volume, thermal conductivity, specific heat, dry loss, etc.), chemical changes (protein denaturation, color change, etc.), cellular tissue changes, and changes in organisms and microorganisms. The characteristic of fast freezing food is to maximize the preservation of its original nutritional value, color, aroma, and flavor. That is to say, during the freezing process, it is necessary to ensure the maximum reversibility of the various changes that occur in the food. Quick freezing warehouses are mainly used for low-temperature freezing of food, drugs, medicinal materials, chemical raw materials, and other items.

      Characteristics of Quick Frozen Cold Storage:

      Most foods begin to freeze when the temperature drops to -1 ℃, and most ice crystals are formed between -1 ℃ and -5 ℃. This stage is called the highest ice crystal formation stage. Rapid freezing can greatly shorten the freezing time at this stage and eliminate this portion of heat as quickly as possible, which is of great significance for improving the quality of frozen food.

      Advantages of Quick Frozen Cold Storage:

      (1) Inhibit respiration, reduce organic matter consumption, and maintain the excellent flavor and aroma of fruits and vegetables.

      (2) Suppress water evaporation and maintain freshness of fruits and vegetables.

      (3) Suppress the growth and reproduction of pathogenic bacteria, control the occurrence of certain physiological diseases, and reduce the rate of fruit decay.

      (4) Inhibiting the activity of certain post ripening enzymes, inhibiting ethylene production, delaying post ripening and aging processes, maintaining fruit hardness for a long time, and having a longer shelf life.

      Air conditioning cold storage

      Controlled Atmosphere Cold Storage, also known as Controlled Atmosphere Storage or Controlled Atmosphere Preservation Storage. Controlled atmosphere storage is currently the most advanced method for preserving fruits and vegetables. It is based on refrigeration and increases gas composition regulation. By controlling the temperature, humidity, carbon dioxide, oxygen concentration, and ethylene concentration in the storage environment, it inhibits the respiration of fruits and vegetables, delays their metabolic process, better maintains the freshness and commercial value of fruits and vegetables, and extends their storage and sales shelf life. Generally, controlled atmosphere storage can extend the storage period by 2-3 times compared to regular refrigeration.

      Characteristics of air-conditioned cold storage:

      (1) Inhibit photosynthesis, reduce the consumption of organic chemical components, and maintain the high-quality and fragrant taste of fruits and vegetables.

      (2) Suppress water evaporation and maintain the freshness of fruits and vegetables.

      (3) Suppress the growth and breeding of pathogens, manipulate the occurrence of some physiological diseases, and reduce the rate of fruit decay.

      (4) Inhibit the activity of some post ripening enzymes, inhibit the formation of butadiene, slow down the entire process of post ripening and aging, always maintain fruit strength, and have a longer shelf life.

      Advantages of air-conditioned cold storage:

      (1) Wide application range: suitable for storing and preserving various fruits, vegetables, flowers, seedlings, etc. in the north and south of China;

      (2) Long storage and preservation period, high economic benefits. After 7 months of preservation for grapes, 6 months for apples, and 7 months for garlic sprouts, the quality remains fresh and tender, with a total loss of less than 5%. Generally, the price of grapes produced in different regions is only 1.5 yuan/kg, while the price can reach 6 yuan/kg when stored around the Spring Festival. A one-time investment to build a cold storage, with a service life of up to 30 years and significant economic benefits. Invest in the same year and see results in the same year;

      (3) Simple operation technology and convenient maintenance. The temperature of the refrigeration equipment is controlled by a microcomputer, which automatically starts and stops without the need for dedicated personnel to monitor. The supporting technology is economical and practical.


      Medical refrigerated warehouses mainly store various types of medical products that cannot be preserved under normal temperature conditions. Under low temperature refrigeration conditions, drugs do not deteriorate or become ineffective, and the shelf life of drugs is extended. The warehouse temperature is generally+2 ℃ to+8 ℃.

      Characteristics of medical refrigerated storage:

      Vaccine bank: 0 ℃~8 ℃ can be used to store vaccines, medications, etc;

      Drug warehouse: 2 ℃ -8 ℃ for storing drugs and biological products, etc;

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