Refrigerating system for fruit and vegetable refrigeration house

Abstract

The invention relates to the technical field of refrigerating of refrigeration houses, and discloses a refrigerating system for a fruit and vegetable refrigeration house. The refrigerating system comprises an air-conditioning refrigerating device and a cold transfer pipeline used for transferring cold generated by the air-conditioning refrigerating device into the refrigeration house, refrigerant fluid is arranged in the cold transfer pipeline, the cold transfer pipeline comprises a cold absorption pipe and a cold discharge pipe which communicate with each other, the cold absorption pipe communicates with a cold exchange cavity, and a cooling grid of an evaporator of the air-conditioning refrigerating device is arranged in the cold exchange cavity. A first circulating pump is arranged between the cold absorption pipe and the cold discharge pipe, and the first circulating pump conveys the refrigerant fluid absorbing cold into the cold discharge pipe arranged in the refrigeration house. According to the target temperature of the refrigeration house, the temperature of the refrigerant fluid in the cold discharge pipe is adjusted to be slightly lower than the target temperature of the refrigeration house, so that the temperature difference between the cold discharge pipe and air in the refrigeration house is small, and therefore a large amount of steam in the air in the refrigeration house is prevented from being cooled and becoming liquid water, the uniformity and stability of air humidity of all parts in the refrigeration house are guaranteed, and therefore surface humidity changes of fruits and vegetables are reduced, and the fruit and vegetable fresh-keeping effect is improved.

Description

technical field [0001] The invention relates to the technical field of cold storage refrigeration, in particular to a refrigeration system for fruit and vegetable cold storage. Background technique [0002] The fruit and vegetable cold storage is a fresh-keeping cold storage that uses refrigeration equipment to create suitable temperature and humidity for cold storage of fruits and vegetables. It is a place for processing and storing agricultural products. The fruit and vegetable cold storage can extend the storage period of fruits and vegetables and keep vegetables fresh and crisp. The moisture, vitamin C content, hardness, color and weight of the vegetables after leaving the fresh-keeping cold storage can meet the storage requirements. Vegetables are tender green, almost the same as freshly picked, and can provide high-quality fruits and vegetables to the market. The installation of fruit and vegetable cold storage frees agricultural and sideline products from the influen...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the existing fruit and vegetable cold storage adopts adding a humidifier in the storage to control the indoor air humidity. Uniform and consistent, prone to low humidity near the air outlet of the refrigeration system, resulting in poor preservation of fruits and vegetables stored at the air outlet of the refrigeration system

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