Modified atmosphere fresh-keeping device and fresh-keeping process for multi-variety and small-batch fruits and vegetables

Abstract

The invention discloses a multi-variety and small-batch fruit and vegetable modified atmosphere packaging device and a multi-variety and small-batch fruit and vegetable modified atmosphere packaging technology. The modified atmosphere packaging device comprises an air compressor, a nitrogen making machine and a humidity control device which are connected in series, wherein the humidity control device is connected with a plurality of small air conditioning cabinets which are arranged in parallel; gas production detection holes, refrigerant inlets and refrigerant outlets of the plurality of small air conditioning cabinets are respectively connected with a gas detection device and a refrigerating unit; cable output holes of a temperature and humidity sensor are respectively connected with the input end of a control system; the control system is connected with the gas detection device, the air compressor, the nitrogen making machine and the humidity control device. The modified atmosphere packaging technology comprises the steps of confirming the air conditioning parameters of the small air conditioning cabinets; controlling the fresh-keeping temperature; controlling the nitrogen and the humidity of the air conditioning cabinets as well as the gas detection; detecting the gas content and the humidity in the air conditioning cabinets regularly. The device and the technology have the beneficial effects that the plurality of small air conditioning cabinets can be respectively used for carrying out preservation on the different fruits and vegetables in a classifying way, and the control system is used for respectively controlling the air conditioning parameters of the small air conditioning cabinets to be within the best range all the time, so that the aim of keeping the fruits and vegetables to be fresh for a long time can be achieved.

Description

technical field [0001] The invention relates to a controlled-atmosphere fresh-keeping device and a fresh-keeping process for fruits and vegetables, in particular to a controllable multi-variety and small-batch controlled-atmosphere fresh-keeping device and a fresh-keeping process for fruits and vegetables. Background technique [0002] Controlled atmosphere fresh-keeping storage is a fresh-keeping process with a long preservation time and good quality assurance. It can greatly reduce the respiration intensity of fruit and vegetable products and prolong storage by controlling the temperature, humidity, oxygen concentration, carbon dioxide and ethylene concentration of the storage environment of fruit and vegetable products. time, reduce the loss of nutrients in fruit and vegetable products during storage, and keep the original color, flavor and nutrition. [0003] At present, the known controlled atmosphere storage technology is to store a large number of single-variety fruit...

AI Technical Summary

Problems solved by technology

[0003] At present, the known controlled atmosphere storage technology is to store large quantities of single-variety fruits and vegetables for a long time under the same controlled atmosphere parameters.

However, when used in environments such as land and ships, there are often problems such as many types of fruit and vegetable products and small quantities.

[0004] In this case, if a variety of fruits and vegetables are stored in the same warehouse, it is easy to cause conflicts in the atmosphere parameters in the fruit and vegetable storage space, which will affect the storage effect of fruits and vegetables.

In addition, the use of large warehouses for storage requires frequent lifting and lowering of oxygen when picking and placing vegetables, which not only consumes a lot of power, but is also not conducive to the safety of staff

Especially when used in a ship environment, the swaying of the hull will lead to the destruction of the airtightness of the entire controlled atmosphere storage, which will have adverse consequences for the safety of personnel and the long-term storage of fruit and vegetable products

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