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Freezers in international shipping: the key to ensuring the freshness of goods
Aug 15,2024
In the vast field of international shipping, the existence of special cabinets provides the possibility for the transportation of various special goods, in which the freezer plays an important role in ensuring the quality and freshness of the goods.
Freezer, as a kind of special cabinet, is specially designed for the transportation of goods that need to be preserved at low temperature in international shipping. Its main function is to provide a stable, low-temperature environment to ensure that the goods will not deteriorate or lose their due quality during long-distance transportation. From the appearance, the freezer is similar to the ordinary container, but the internal structure and function are quite different. It is equipped with a powerful refrigeration system, which can quickly reduce the temperature in the cabinet and accurately maintain it within a specific low temperature range, usually minus 18 degrees Celsius or even lower. This low temperature environment is essential for many goods, such as seafood, meat, ice cream, perishable foods such as frozen fruits and vegetables, and certain pharmaceutical and biological products that require low temperature storage.
In international shipping, the refrigeration system of the freezer is its core part. This system usually consists of components such as a compressor, a condenser, an evaporator, and an expansion valve. The compressor is like the heart, compressing the refrigerant into high-temperature and high-pressure gas; the condenser cools these gases and converts them into liquid; the evaporator absorbs heat in the cabinet to evaporate the refrigerant into low-temperature gas; the expansion valve controls the flow of the refrigerant And pressure to ensure the stable operation of the entire system. Through this series of cyclic operation, the freezer can continuously provide a low temperature environment. In order to maintain the low temperature effect in the cabinet, the cabinet body of the freezer is usually made of materials with good thermal insulation performance.
High-quality insulation materials can effectively reduce the introduction of external heat, reduce the workload of the refrigeration system, while saving energy and improving refrigeration efficiency. In addition, the freezer is also equipped with an advanced temperature control system, the owner or transporter can accurately set and adjust the temperature in the cabinet according to the requirements of the goods, and can monitor the temperature change in real time. Once an abnormality occurs, the system will issue an alarm in time. In actual international shipping operations, the use of freezers needs to follow strict specifications and procedures. Before loading, the freezer must be fully inspected and pre-cooled to ensure that the refrigeration system is operating normally and the temperature meets the requirements of the goods.
When loading, pay attention to the way the goods are placed to ensure that the cold air can circulate evenly and avoid the deterioration of the goods caused by the high local temperature. During transportation, it is also necessary to regularly monitor and record the temperature and operating status of the freezer to ensure that the goods are always in a suitable low temperature environment.
For example, when a batch of fresh Norwegian salmon is shipped around the world, the freezer becomes their "fresh compartment". From fishing ashore to entering the freezer, and then after a long sea journey to the destination market, the freezer has always maintained a stable low temperature, so that the freshness and taste of salmon can be perfectly preserved. For example, some special biopharmaceutical products are extremely demanding on temperature. In international shipping, only by relying on highly reliable freezers can we ensure that the efficacy and safety of these drugs are not affected, thus providing protection for the treatment of patients. In short, in international shipping, the freezer in the special cabinet is the key equipment to ensure the freshness and quality of the goods. With its advanced refrigeration technology, strict operating regulations and efficient transportation guarantee, it provides solid support for the transportation of perishable goods and temperature-sensitive goods in global trade, and promotes the prosperity and development of international trade.
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