Ternary evaporator non-frost cold storage

Abstract

The invention relates to a frostless refrigerated storage of a ternary evaporator for preservation of agricultural products, which comprises a compressive condensing refrigerating unit (1) outside the storage and an air cooler (2) inside the storage, a wall evaporation exhaust tube (3) on the storage wall, a terrace shallow pool (7), an evaporation exhaust tube (4) in the terrace shallow pool (7), and the like. A refrigerating medium is placed in the terrace shallow pool (7); and the compressive condensing refrigerating unit (1), the air cooler (2), the wall evaporation exhaust tube (3), the evaporation exhaust tube (4) and the compressive condensing refrigerating unit (1) are communicated in turn to form a refrigeration and heat exchange cycle. The wall evaporation exhaust tube (3) can arranged on any one wall or multiple walls except the wall provided with the air cooler (2). The frostless refrigerated storage can also be provided with a spray device consisting of a spray pipe (5), a pump (6), and the like. The frostless refrigerated storage has the characteristics of reducing frosting of the air cooler, reducing defrosting operation, and reducing energy consumption, keeping high humidity and comparatively constant temperature of the refrigerated storage, and improving preservation effect of the agricultural products greatly.

Description

1. Technical field: [0001] The invention is a three-element evaporator frost-free cold storage for fresh-keeping agricultural products. 2. Background technology: [0002] At present, in the small and medium-sized cold storages used for the storage and preservation of agricultural and sideline products, the evaporative refrigeration equipment in the cold room mostly uses air coolers and various forms of pipes. The air coolers mainly exchange heat through air convection, which is easy to frost, and the cooling effect decreases after frosting. In severe cases, the cold storage will not cool down. At the same time, the frosting of the air cooler will also cause the humidity of the cold storage to drop, which will increase the dry consumption of fresh-keeping products and greatly affect the fresh-keeping effect. Therefore, the existing conventional air coolers need to defrost in time, and defrosting is a process that consumes a lot of energy, and causes a high rise in storage te...

AI Technical Summary

Problems solved by technology

[0002] At present, in the small and medium-sized cold storages used for the storage and preservation of agricultural and sideline products, the evaporative refrigeration equipment in the cold room mostly uses air coolers and various forms of pipes. The air coolers mainly exchange heat through air convection, which is easy to frost. In severe cases, the cold storage does not cool down

At the same time, the frosting of the air cooler will also cause the humidity of the cold storage to drop, which will increase the dry consumption of fresh-keeping products and greatly affect the fresh-keeping effect.

Therefore, the existing conventional air coolers need to defrost in time, and defrosting is a process that consumes a lot of energy, and causes a high rise in storage temperature, which is not conducive to the preservation of agricultural products

The cold storage installed with a row-pipe evaporator has poor air natural convection heat transfer performance and uneven distribution of cooling capacity, resulting in uneven storage temperature. When there is a lot of frost accumulation, the cooling effect cannot be achieved.

Products that are close to the discharge pipe are prone to freezing damage, while products that are far away from the pipe have a higher product temperature, which affects the storage effect of the product

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