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Atmosphere-controlling freshness retaining control device and technology for retaining freshness of fruits and vegetables in storage bag

A fruit and vegetable fresh-keeping and control device technology, which can be used in packaging under vacuum/special atmosphere, packaging objects under special gas conditions, transportation and packaging, etc., can solve the problem of inapplicability of the modified atmosphere preservation technology for fruits and vegetables, and achieve the purpose of increasing the number of ocean-going ships Ability, strong environmental adaptability, convenient and safe access to fruits and vegetables

Active Publication Date: 2015-03-25
TIANJIN CNRO SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the restrictions on the above-mentioned three gas sources on board, the modified atmosphere preservation technology of fruits and vegetables is not suitable for ships sailing in the ocean

Method used

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  • Atmosphere-controlling freshness retaining control device and technology for retaining freshness of fruits and vegetables in storage bag
  • Atmosphere-controlling freshness retaining control device and technology for retaining freshness of fruits and vegetables in storage bag

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Embodiment Construction

[0016] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] The invention provides a controlled atmosphere fresh-keeping control device for fresh-keeping fruits and vegetables in a fresh-keeping bag. The controlled atmosphere fresh-keeping control device includes: a fresh-keeping bag 17 containing fruits and vegetables, a gas mixer 6, a gas detection device 7 and a circuit control device with a touch screen device9.

[0018] Between the air inlet and outlet of the fresh-keeping bag 17 and the mixed gas outlet 6d of the gas mixer 6, the vacuum pump 8 and the gas detection device inlet 7a of the gas detection device 7, the fifth electromagnetic valve 15, the sixth electromagnetic valve 16 and the fifth electromagnetic valve 15 are connected respectively. The fourth solenoid valve 14.

[0019] A second electromagnetic valve 12 is connected between the nitrogen inlet 6 b of the gas mixer 6 and the gas outlet ...

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Abstract

The invention discloses an atmosphere-controlling freshness retaining control device and technology for retaining the freshness of fruits and vegetables in a storage bag. The device comprises the storage bag, a gas mixer, a gas detection device and a circuit control device with a touch screen, wherein an air inlet / outlet of the storage bag is connected with the gas mixer, a vacuum pump and the gas detection device, a nitrogen inlet of the gas mixer is connected with a nitrogen source, an air inlet of the gas mixer is connected with a gas storage tank and an air compressor in series, a gas mixture detection port is connected with the gas detection device, and the signal output end of the circuit control device with the touch screen is connected with the air compressor, the gas detection device, the vacuum pump and an electromagnetic valve. The technique comprises the steps that the nitrogen source is turned on, fruits and vegetables are placed in the storage bag, parameters are set, the storage bag is vacuumized, the storage bag is filled with a gas mixture and detection is conducted. The atmosphere-controlling freshness retaining control device and technology for retaining the freshness of fruits and vegetables in the storage bag have the advantages that atmosphere-controlling parameters of the interior of the storage bag reach the fruit and vegetable freshness-retaining range rapidly, and the freshness of fruits and vegetables can be retained for a long time; equipment is simple, operation is easy and convenient, the occupied space is small, power consumption is low, and the device and technique are particularly suitable for ships on which refrigeration chambers are established.

Description

technical field [0001] The invention relates to a fresh-keeping device for modified-atmosphere packaging of fruits and vegetables, in particular to a modified-atmosphere fresh-keeping control device and process for keeping fruits and vegetables in fresh-keeping bags suitable for use on ships. Background technique [0002] In the existing technology, most of the ships use controlled atmosphere storage or refrigeration equipment to keep fruits and vegetables fresh, but the controlled atmosphere storage is suitable for long-term storage of large quantities of single-variety fruits and vegetables. Varieties of fruits and vegetables are kept fresh; while refrigeration equipment keeps fruits and vegetables fresh through refrigeration and low temperature, which also has a short shelf life and poor fresh-keeping effect, and is not suitable for ocean-going use on ships. [0003] Composite modified atmosphere packaging is collectively referred to as "MAP" packaging (Modified Atmospher...

Claims

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Application Information

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IPC IPC(8): B65D81/20
Inventor 郭晓光刘智君周华华程步军晋朝张建梅刘晶
Owner TIANJIN CNRO SCI TECH
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