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Vertical ventilation differential pressure pre-cooling device for fruits and vegetables

A differential pressure pre-cooling and pre-cooling technology, which is applied to the preservation of fruits and vegetables, preservation of fruits/vegetables through freezing/refrigeration, food preservation, etc., can solve problems such as uneven pre-cooling, short-circuit of air supply, and low pre-cooling efficiency. Achieve the effect of improving the quality of pre-cooling, overcoming the short circuit of the air supply, and improving the effect of pre-cooling

Pending Publication Date: 2018-08-14
TIANJIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is to provide a vertical ventilation differential pressure precooling device for fruits and vegetables, which can overcome the problems of air supply short circuit, uneven precooling, and low precooling efficiency in the prior art.

Method used

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  • Vertical ventilation differential pressure pre-cooling device for fruits and vegetables
  • Vertical ventilation differential pressure pre-cooling device for fruits and vegetables

Examples

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Embodiment 1

[0023] see figure 1 , a vertical ventilation differential pressure precooling device for fruits and vegetables in the present invention, which effectively combines differential pressure precooling with cold chain logistics vehicles. Cold, reduce the cost of fruit and vegetable preservation. The unit includes:

[0024] The refrigeration unit module includes a frequency conversion compression condensing unit 301 and an evaporator 3; the evaporator 3 is located inside the pre-cooling container box 5; the frequency conversion compression condensing unit 301 is located outside the pre-cooling container box 5; the refrigeration unit The power source of the module can be the generator in the container transport vehicle or any external power supply that can provide voltage. The two power sources can be switched freely according to the actual situation; the refrigeration unit module can adjust the frequency conversion compression in real time according to the size of the pre-cooling ...

Embodiment 2

[0031] Such as figure 2 As shown, in order to further humidify the air in the precooling container body 5 to enhance the preservation effect of fruits and vegetables, the user can install a humidification system 16 on the basis of Embodiment 1 according to actual needs. The working principle of the device is the same as that of Embodiment 1. Humidification System 16 consists of a humidification pipeline, a humidifier, and a humidification nozzle. The humidification pipeline connects the humidifier with the humidification nozzle. In terms of specific implementation, it is recommended to use an ultrasonic humidifier.

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Abstract

The invention discloses a vertical ventilation differential pressure pre-cooling device for fruits and vegetables. The device comprises a refrigeration unit module and a fruit-vegetable pre-cooling module. The refrigeration system module is used for cooling air inside the fruit-vegetable pre-cooling module; and the fruit-vegetable pre-cooling module can perform batch pre-cooling operation on fruits and vegetables. The device can be conveniently installed on a container transportation vehicle and transported to farming area or near a refrigeration house for carrying out pre-cooling work on fruits and vegetables before warehousing, and can carry out movable pre-cooling in transit. With a split-level Z-shaped pre-cooling air channel with sending layers and returning layers, cold air can vertically pass through the fruits and vegetables in a pre-cooling turnover box so as to improve the pre-cooling uniformity, and to avoid the problems of short circuit of air supply and low pre-cooling efficiency. The device is beneficial to reducing the cost of fruit and vegetable fresh-keeping, is beneficial to the wide popularization and application, and has significant production practice significance.

Description

technical field [0001] The invention relates to the field of precooling storage of agricultural products, in particular to a vertical ventilation differential pressure precooling method and device for fruits and vegetables. Background technique [0002] For a long time, the post-production loss of agricultural products in our country has been serious, and the corrosion rate in the circulation process has reached 20-30%, resulting in an annual economic loss of up to 100 billion yuan. Pre-cooling can remove the seasonal heat brought by the fruit and vegetable picking season, effectively reduce the cooling load of refrigerated trucks, refrigerated ships, etc., and realize the energy-saving effect of refrigerated storage and transportation devices. At the same time, pre-cooling can reduce the respiration intensity of fruits and vegetables, inhibit the reproduction of microorganisms and the release of enzymes, and reduce the metabolism of fruits and vegetables, which is of great ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/04
CPCA23B7/0425
Inventor 申江贺红霞朱宗升
Owner TIANJIN UNIV OF COMMERCE
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