With the continuous advancement and development of technology, people have also become proficient in many technological fields. Therefore, in order to better conserve resources and contribute to long-term development, we have also seen more innovation and discoveries in food storage methods. Modified Atmosphere Storage is one storage method that boasts distinct advantages in storage effects. Below, let's learn how to judge its engineering quality.
1. Requirements for refrigeration equipment in controlled atmosphere storage facilities
Its stringent sealing is different from that of general cold storage facilities, hence the criticality of achieving proper sealing for refrigeration equipment. Specifically, all wall-penetrating pipelines must be sheathed, defrosting water return pipelines must include U-bend water seals, and the main defrosting return pipelines outside the storage must be equipped with air-supply ports to prevent the internal storage gas from being suctioned outwards due to negative pressure. Other controlled atmosphere storages, due to their good sealing properties, should not have excessively wide temperature setting fluctuations to prevent damage to the storage body from excessive positive and negative pressures.
2. The controlled atmosphere storage maintains relative humidity levels.
Humidity control in a controlled atmosphere storage is crucial, evolving from initial centrifugal humidifiers to high-pressure micro-fog humidifiers, dense gas-water mist humidifiers, and now to ultrasonic humidifiers. Its benefits include fine particles for even distribution, no freezing or clogging, and no contamination. The structural design features are as follows:
1) Full closed-loop system, where the gas within the storage is extracted, humidified, and returned to the storage, completely isolated from external air.
2) Temperature compensation is in place, actively scheduling and controlling water temperature.
3) The water tank is designed independently, separate from the body, featuring a double-layer structure that prevents condensation and dripping due to temperature differences inside and out.
4) Interlocks with the refrigeration system, preventing humidity addition during cooling to avoid severe frosting on the fans.
5) Ultrasonic atomization technology with an energy concentrator, the effective output will decrease per hour. At 5 degrees, the humidity addition will lose 70%. The humidity addition can be increased by 50-70%.
3. Vaccum Storage Warehouse Airtight Construction
The controlled atmosphere warehouse is an innovation over traditional high-temperature cold storage facilities, combining the "cooling" function of a cold storage with the "gas control" function that is not present in a standard cold storage. However, it is not just a simple addition of a high-temperature warehouse and a controlled atmosphere equipment. To ensure rapid adjustment of the gas composition inside, it is crucial to have excellent airtightness.
This detailed introduction covers three aspects to assess the engineering quality of controlled atmosphere storage facilities. These facilities represent a highly advanced technique for preserving fruits and vegetables. Not only do they maintain the quality, taste, and nutrition of the produce over extended periods, but they also double the storage duration and extend the shelf life by 21-28 days. As a result, they are highly sought after.
