Vehicular micro-vacuum fruit-vegetable picking field cooling device and pre-cooling method thereof

A cooling device, fruit and vegetable technology, applied in fruit and vegetable preservation, food preservation, food science and other directions, to achieve the effect of short pre-cooling time, excellent comprehensive performance, and overcoming no electricity and no power

Pending Publication Date: 2016-12-14
SUZHOU BTBS ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem mainly solved by the present invention is to provide a vehicle-mounted micro-vacuum fruit and vegetable picking on-site cooling device and its pre-cooling method, which can solve the above-mentioned shortcomings existing in the existing pre-cooling methods

Method used

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  • Vehicular micro-vacuum fruit-vegetable picking field cooling device and pre-cooling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A vehicle-mounted micro-vacuum fruit and vegetable picking on-site cooling device, the pre-cooling effect is between differential pressure pre-cooling and vacuum pre-cooling, including a micro-vacuum box 1 and a liquid nitrogen cylinder 2 connected in sequence through a gas pipe, a vaporization decompression device, a vacuum Generator 3, gas storage tank 4 and exhaust pipe 5.

[0033] Wherein, the opposite sides of the inside of the micro-vacuum box 1 are respectively provided with an air extraction pipe 6 and an air return pipe 7, the vacuum generator 3 communicates with the air extraction pipe 6 through a gas pipe equipped with a check valve 8, and the gas storage tank 4 is installed with a The air pipe of the first electromagnetic valve 9 communicates with the air return pipe 7 . Arranging the exhaust pipe and the air return pipe on both sides of the micro-vacuum box indirectly achieves the effect of differential pressure pre-cooling. In addition, vacuuming the micro...

Embodiment 2

[0042] The difference from Embodiment 1 is that one side of the micro-vacuum box 1 is also connected with a constant temperature air duct 15 and a constant humidity air duct 16, and the refrigeration system 17 and the humidification system are respectively connected through the constant temperature air duct 15 and the constant humidity air duct 16 18, so as to record the pre-cooling data of different kinds of fruits to provide customers with experimental data of different kinds of fruits.

[0043] The advantages of the vehicle-mounted micro-vacuum picking site precooling device of the present invention are as follows:

[0044] 1. No power supply is needed, which solves the problem of no power supply at some picking sites.

[0045] 2. There are no special requirements for packaging and stacking, effectively improving stacking efficiency and reducing transportation costs.

[0046] 3. The cooling time is short and the speed is fast, only 20-30 minutes.

[0047] 4. Make full use...

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Abstract

The invention discloses a vehicular micro-vacuum fruit-vegetable picking field cooling device and a pre-cooling method thereof. The device comprises a micro-vacuum container and further comprises a liquid nitrogen steel cylinder, a vaporization pressure reducing device, a vacuum generator, an air storage tank and an evacuation pipe in sequential communication through an air pipe. An air suction pipe and an air return pipe are arranged on two opposite inner sides of the micro-vacuum container respectively, and the vacuum generator and the air storage tank are communicated with the air suction pipe and the air return pipe through the air pipe with a check valve and a first electromagnetic valve respectively. A second electromagnetic valve is mounted on the air pipe between the air storage tank and the evacuation pipe. The vehicular micro-vacuum fruit-vegetable picking field cooling device has advantages that short pre-cooling time and low temperature fluctuation and uniform internal temperature difference of the micro-vacuum container are realized, and instant cooling after picking can be guaranteed; safety and reliability are achieved due to adoption of nitrogen as a gas source for the cooling device, and by sensible heat and latent heat of vaporization of liquid nitrogen, unpowered power source cooling is realized, the problem of lack of electricity and power in a picking field is solved, flexibility in use of a pre-cooling device is improved, and excellent comprehensive performances and promising market prospect are realized.

Description

technical field [0001] The invention relates to the field of fruit and vegetable cooling devices, in particular to a vehicle-mounted micro-vacuum fruit and vegetable picking on-site cooling device and a precooling method thereof. Background technique [0002] With the improvement of people's living standards and changes in living habits, the share of fruits and vegetables sold in supermarkets is constantly increasing. At the same time, with the intervention of e-commerce, improving the freshness and storage time of fruits can effectively reduce losses and win time for sales companies. , bringing in profits. [0003] Practice has proved that on-site cooling of fruits and vegetables is the most important part of the entire cold chain. Temperature intervention for various fruits in the south can eliminate field heat and inhibit respiratory growth after picking, thereby effectively improving the freshness and storage time of fruits. Reduce fruit consumption during storage and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/055A23B7/148
CPCA23B7/055A23B7/148
Inventor 王行
Owner SUZHOU BTBS ENERGY TECH
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