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CN-121986837-A - Hydroxyl active oxygen molecule fresh-keeping device

CN121986837ACN 121986837 ACN121986837 ACN 121986837ACN-121986837-A

Abstract

The invention provides a hydroxyl active oxygen molecule fresh-keeping device which comprises an environment sensing unit, a control unit and an execution control unit. The hydroxyl active oxygen molecule fresh-keeping equipment generates and maintains a dynamic molecule synergistic active gas environment taking hydroxyl free radicals and ozone as cores in situ and on demand in a fruit and vegetable storage space through a special pulse device, and follows a typical Criegee mechanism reaction, the hydroxyl active oxygen (OH+O 3 ) and olefin double bond undergo a selective oxidation cracking process, so that molecular-level targeted removal of ethylene is realized, the hydroxyl free radicals (OH) are used as safe 'excitons', secondary metabolism is promoted for fruits and vegetables, PAL enzymes are activated, antioxidation is activated, and a fresh-keeping action mechanism of SOD/CAT activity is induced. The deep linkage of triple mechanisms of physical elimination of ethylene, biological sterilization, germ inhibition and physiological regulation and activation of stress resistance is realized, and the transition from passive corrosion prevention to active stress resistance is realized.

Inventors

  • ZHONG JINGRONG
  • YU XIAOJIA

Assignees

  • 博邦环控(广东)科技有限公司
  • 沐鲜制造(广州)有限公司

Dates

Publication Date
20260508
Application Date
20260213

Claims (10)

  1. 1. The hydroxyl active oxygen molecule fresh-keeping device is characterized by comprising the following parts: the device comprises an environment sensing unit, a control unit and an execution control unit; the environment sensing unit comprises an intelligent environment sensing module, the control unit comprises a control module, and the execution control unit comprises an active gas generation module and a gas phase diffusion module; The intelligent environment sensing module comprises at least one of an ethylene concentration sensor, a carbon dioxide concentration sensor, a temperature sensor, a humidity sensor and a hydroxyl active oxygen concentration sensor; the active gas generation module comprises a hydroxyl activated oxygen generator; The gas phase diffusion module is used for diffusing active gas into a fresh-keeping space through a circulating fan and a wind channel system; The control module generates dynamic adjusting signals according to the sensing data of the intelligent environment sensing module, and sends the dynamic adjusting signals to the active gas generating module and/or the gas phase diffusion module respectively to dynamically adjust the generation amount of hydroxyl active oxygen and the air supply quantity of the gas phase diffusion module.
  2. 2. The hydroxyl activated oxygen molecule preserving device according to claim 1, wherein the hydroxyl activated oxygen generator converts the humid air introduced from the warehouse into a mixed gas containing hydroxyl and ozone by a high-voltage corona discharge unit.
  3. 3. The hydroxyl activated oxygen molecule fresh-keeping device according to claim 1, wherein the hydroxyl activated oxygen generator is a heterogeneous catalytic generator for generating hydroxyl radicals, a solid catalyst is filled in the catalytic generator, when air containing ozone and moisture flows through the surface of the catalyst, the ozone is converted into hydroxyl, and the solid catalyst is honeycomb ceramics loaded with MnO 2 、TiO 2 .
  4. 4. The hydroxyl radical reactive oxygen species fresh-keeping device according to claim 1 wherein the hydroxyl radical generator generates hydroxyl radicals by ultraviolet radiation using UVC ultraviolet light of a specific wavelength as an excitation source to photolyze air to generate ozone and cleave water molecules to generate hydroxyl radicals, preferably 185nm and/or 254nm.
  5. 5. The hydroxyl activated oxygen molecule preserving device according to claim 1, wherein the intelligent environment sensing module comprises a sensor group comprising an ethylene concentration sensor, a carbon dioxide concentration sensor, a temperature sensor, a humidity sensor and a hydroxyl activated oxygen concentration sensor arranged in different areas of the fruit and vegetable preserving warehouse area.
  6. 6. The hydroxyl activated oxygen molecule preserving apparatus according to claim 1, wherein the active gas generating module comprises a plurality of active gas generating modules arranged in different areas of the fruit and vegetable preserving warehouse area.
  7. 7. The hydroxyl active oxygen molecule fresh-keeping device according to claim 1, wherein the control unit generates dynamic adjusting signals according to the data of the sensor groups in different areas of the fruit and vegetable fresh-keeping warehouse area, wherein the dynamic signals are used for adjusting the active gas supply amounts of the air duct systems in different areas corresponding to the different sensor groups or adjusting the active gas generation amounts of the active gas generation modules in different areas corresponding to the different sensor groups to realize the partition adjustment of the fruit and vegetable fresh-keeping warehouse area.
  8. 8. The hydroxyl activated oxygen molecule preserving device according to claim 1, wherein the gas phase diffusion module comprises a circulating fan, a humidifier, a refrigerating system and a ventilation system.
  9. 9. The hydroxyl oxygen molecule fresh-keeping device according to claim 1, wherein the control unit further comprises a remote data transmission module for receiving the control signal sent by the remote terminal and sending the control signal to the control module, and the remote data transmission module further comprises a function state parameter of the fresh-keeping device and a sensor parameter of the environment sensing unit are transmitted to the remote terminal for remote monitoring and management.
  10. 10. The hydroxyl activated oxygen molecule preserving device according to claim 1, wherein the preserving device comprises a double-station mode through the control unit, wherein the double-station mode is a preserving mode and a sterilizing mode, wherein in the preserving mode, the control unit controls the plurality of hydroxyl activated oxygen generators to run alternately, and in the sterilizing mode, the control unit controls the plurality of hydroxyl activated oxygen generators to run simultaneously.

Description

Hydroxyl active oxygen molecule fresh-keeping device Technical Field The invention relates to the field of post-harvest processing technology and physical preservation equipment of agricultural products, in particular to a hydroxyl active oxygen molecule preservation device. Background China is the biggest fruit and vegetable production country and consumer country worldwide, but the loss rate after picking is far higher than that in developed countries (about 20% -30% of China and less than 5% of developed countries), the application level of the preservation technology is uneven, and the preservation technology has a multi-element pattern from traditional to modern and from single to compound. At present, the agricultural product preservation is mainly based on the basic application of a low-temperature cold chain technology, and is effective but insufficient. The low temperature can obviously inhibit respiration and microbial activity of fruits and vegetables, but cannot eliminate ethylene and kill the existing bacteria. The air-conditioning fresh-keeping technology is partially adopted, and a dormant state for inhibiting the respiration of fruits and vegetables is created by precisely controlling the proportion of oxygen, carbon dioxide and nitrogen in a storage environment. The method is divided into controllable air Conditioning (CA) and spontaneous air conditioning (MA). The shelf life of the apple and pear can be greatly prolonged by applying maturity in long-term storage of high-end apples and pears. However, the CA technology has high investment and running cost, extremely strict requirement on air tightness and complex management, and has the problems of anaerobic respiration and the like caused by 'low oxygen' regulation on the storage and fresh-keeping of high-sugar fruits pursued by Chinese consumers, and the application effect is relatively limited. In terms of microbial spoilage control, it is common to use conventional chemical preservatives that are treated with chemical fungicides (e.g., imazalil, prochloraz), ethylene absorbers (potassium permanganate oxidation), or plant growth regulators (e.g., 1-MCP). 1-MCP is clearly effective and a revolutionary technique, but its main role is to "block" the maturation process, with limited effectiveness against non-ethylene-dominant senescence and microbial spoilage. However, the traditional chemical bactericide is subjected to huge pressures such as exceeding of pesticide residues, enhancement of pathogen resistance, worry of consumers on food safety and environmental protection and the like. The physical fresh-keeping technology is an application technology which is emerging in the future and has huge potential for fruits and vegetables, and ozone and ultraviolet rays are used for space disinfection in partial refrigerators and workshops. Irradiation technology is limited by cost and consumer acceptance. The molecular and plasma technology (including hydroxyl active oxygen technology) is in the market introduction period, and has the common advantages of no chemical residue or extremely low residue, and accords with the green safety trend. However, most of the technologies have single action (such as UV surface sterilization), limited treatment capacity or high initial equipment investment, and have not been the mainstream. Disclosure of Invention In order to solve the technical problems, the invention provides the following technical scheme. The invention provides a hydroxyl active oxygen molecule fresh-keeping device which comprises an environment sensing unit, a control unit and an execution control unit, wherein the environment sensing unit comprises an intelligent environment sensing module, the control unit comprises a control module, and the execution control unit comprises an active gas generation module and a gas phase diffusion module. The intelligent environment sensing module comprises at least one of an ethylene concentration sensor, a carbon dioxide concentration sensor, a temperature sensor, a humidity sensor and a hydroxyl active oxygen concentration sensor; The active gas generation module comprises a hydroxyl active oxygen generator, the gas phase diffusion module is used for diffusing active gas into a fresh-keeping space through a circulating fan and a wind channel system, the control module generates dynamic adjustment signals according to sensing data of the intelligent environment sensing module and sends the dynamic adjustment signals to the active gas generation module and the gas phase diffusion module respectively, and the generation amount of the hydroxyl active oxygen and the air supply amount of the gas phase diffusion module are dynamically adjusted. In an alternative specific embodiment of the invention, the hydroxyl radical generator is used for converting the humid air led out of the warehouse into mixed gas containing hydroxyl radical and ozone through a high-voltage corona discharge unit. In another embodiment