Fruit and vegetable preservation cold storage equipment selection - dry goods, uniform temperature control. Core indicators for unit selection

Fruit and vegetable storage requires extremely high requirements for temperature and humidity balance. If the temperature difference in the internal part of the cold storage is too large, it will cause premature fruit decay, water loss and wrinkling, and uneven ripening speed, directly reducing the commercial value of agricultural products. Many fruit and vegetable storage bases purchase ordinary cold storage units, ignoring the uniformity of air distribution and humidity regulation capabilities. Each year, a large amount of product loss occurs. This article sorts out the core indicators for the selection of fruit and vegetable cold storage equipment.
1. Two core performance indicators for fruit and vegetable preservation-specific equipment
First, uniform air distribution throughout the area. The cold fan is reasonably arranged and combined with a large diffusion air duct to avoid low temperatures in the corners of the cold storage and high temperatures in the middle; second, stable humidity regulation function. The unit can be combined with humidifying and dehumidifying components to maintain an appropriate humidity range according to the type of fruit and vegetables, preventing fruit from losing water and cracking on the surface.
Meat quick-freezing cold storage focuses on ultra-low temperature rapid cooling. Fruit and vegetable preservation does not require extremely low temperatures, but the balance of temperature and humidity is the core. The two types of scenarios cannot be used interchangeably, and direct mixed use will significantly increase product loss.
2. Different types of fruit and vegetable differentiated equipment configuration logic
Leafy vegetables need a high-humidity environment. The fan blades of the cold fan are made larger to reduce frosting and blockage of the air duct, and are combined with an independent humidity regulation module; apples, oranges, etc., which are resistant to storage, can moderately reduce the environmental humidity. The unit operates at variable frequency and low power, slowly maintaining a constant temperature; tropical fruit storage has a higher temperature range, and the temperature control upper limit of the unit can be adjusted to avoid freezing the fruit flesh due to low temperatures.
Large-scale composite fruit and vegetable storage bases divide multiple independent temperature-controlled zones internally, requiring multiple small cold fans to distribute air, replacing a single large-power unit, reducing the temperature difference between zones, and ensuring the simultaneous preservation of various fruits and vegetables.
3. Key points for optimizing the durability of equipment suitable for agricultural storage
Fruit and vegetable cold storages are mostly located in suburban fields, with large diurnal temperature differences and high air humidity. The equipment shell and heat exchanger need to be treated with anti-corrosion and rust-proof spraying; the agricultural power grid voltage fluctuates frequently, and the electrical control system is equipped with a voltage stabilizing module to prevent voltage instability from causing the unit to stop; the operation panel of the equipment is simplified, adapted to the basic operation level of farmers, and equipped with simple graphic operation instructions.
Shaoxing Xueying Refrigeration has developed dedicated refrigeration equipment for fruit and vegetable preservation and constant temperature storage of medicinal herbs. The cold fan optimizes the air duct structure to improve the uniformity of air distribution and can be combined with humidity regulation components. The entire machine is upgraded for anti-corrosion to adapt to the high-humidity environment of the field. The enterprise supports customizing the power and arrangement scheme of the unit according to the size of the cold storage zone, and domestic agricultural cooperatives and overseas fruit planting bases can purchase it. At the same time, a low-cost complete set of small cold storage matching solution is provided.
4. Tips for reducing loss in daily operation of fruit and vegetable cold storages
Regularly clean the frost on the fan blades to ensure the air duct is unobstructed; adjust the temperature and humidity parameters of the cold storage according to the current type of fruit and vegetables; quickly open and close the insulation door of the cold storage for goods entry and exit to reduce the sudden increase in load caused by the influx of external hot air; during the off-season, do a good job in protecting the equipment from moisture and dust to delay rusting and aging of components. Summary
The core evaluation criteria for fruit and vegetable preservation cold storage equipment are the uniformity of air supply and the ability to control temperature and humidity. It is not advisable to simply copy the configuration of quick-freezing cold storage units. Based on the type of crops and the scale of storage, custom-fit air conditioners and condensing units should be selected, and combined with standardized daily maintenance, this can effectively reduce the loss of fruit and vegetable storage, and increase the storage period and value of agricultural products.