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CN111374167A - Ultra-long-effect sterilization vacuum moisturizing and fresh-keeping method and device - Google Patents

Ultra-long-effect sterilization vacuum moisturizing and fresh-keeping method and device Download PDF

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Publication number
CN111374167A
CN111374167A CN202010093090.9A CN202010093090A CN111374167A CN 111374167 A CN111374167 A CN 111374167A CN 202010093090 A CN202010093090 A CN 202010093090A CN 111374167 A CN111374167 A CN 111374167A
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China
Prior art keywords
heat
fresh
airtight cavity
module
insulating airtight
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CN202010093090.9A
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Chinese (zh)
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胡勤恒
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Individual
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B7/152—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O ; Elimination of such other gases
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G5/00—Floral handling
    • A01G5/06—Devices for preserving flowers
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/06—Freezing; Subsequent thawing; Cooling
    • A23B4/066—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes
    • A23B4/068—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes with packages or with shaping in the form of blocks or portions
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/16—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/18—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of liquids or solids
    • A23B4/24—Inorganic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/04—Freezing; Subsequent thawing; Cooling
    • A23B7/0425—Freezing; Subsequent thawing; Cooling the material not being transported through or in the apparatus, with or without shaping, e.g. in the form of powder, granules or flakes
    • A23B7/0433—Freezing; Subsequent thawing; Cooling the material not being transported through or in the apparatus, with or without shaping, e.g. in the form of powder, granules or flakes with packages or with shaping in the form of blocks or portions
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B7/148—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
    • A23B7/157—Inorganic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/015—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation
    • A23L3/0155—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation using sub- or super-atmospheric pressures, or pressure variations transmitted by a liquid or gas
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3445—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/358—Inorganic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/363—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in form of powder, granules, or flakes
    • A23L3/364—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in form of powder, granules, or flakes with packages or with shaping in form of blocks or portions
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85—Food storage or conservation, e.g. cooling or drying

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental Sciences (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention discloses an ultra-long-acting sterilization vacuum moisturizing and fresh-keeping method and a fresh-keeping device, and mainly relates to the technical field of fresh keeping. Firstly, putting fresh goods into a heat-insulating airtight cavity; after sealing, sterilizing the heat-insulating airtight cavity; meanwhile, refrigerating the heat-insulating airtight cavity, and controlling the temperature to be kept at 2-5 ℃; then, the heat-insulating airtight cavity is vacuumized, and the pressure is controlled to be maintained at 400-500 Pa (note: 1Pa ═ 10 Dyne/cm)2) (ii) a And simultaneously, humidifying the heat-insulating airtight cavity, and controlling the humidity to be 90-saturated. The invention has the beneficial effects that: it creates a local sterile low-temperature water saturated vacuum environment; the fresh goods are placed in the fresh-keeping box, so that the effect of keeping the fresh goods fresh for a long time is achieved, and the fresh-keeping box is environment-friendly and low in consumption; compared with the conventional normal-pressure low-humidity cold storage and preservation method with extremely short preservation period, the method has remarkable economic benefit and social public value.

Description

Ultra-long-effect sterilization vacuum moisturizing and fresh-keeping method and device
Technical Field
The invention relates to the technical field of preservation, in particular to an ultra-long-effect sterilization vacuum moisturizing preservation method and a preservation device.
Background
According to the report of the free time of taiwan in china in 6 and 18 months in 2018: the total weight of expired food in a whole Taiwan mass vendor, convenience store, supermarket and the like in one year is more than thirty-six thousand metric tons, and the quantity is remarkable, so that great economic loss is caused. According to the investigation, the Taiwan 15-family members are investigated, and according to the annual business volume estimation, the food of 30.8 million yuan (new Taiwan currency) is discarded by volume dealer one year, the food of 7.3 million yuan is discarded by super business, the total amount is up to 38.1 million yuan, and if the food is converted into the nutrient lunch meal, 34 million weak schoolchildren can eat the food for one year.
According to statistics, most of the discarded foods are vegetables, fruits, meat or seafood, and the reasons for discarding include temporary use, breakage of external packages, or pure poor sale and over-ripening. Taking fruits as an example, bananas with black spots and guava with slightly damaged surfaces can be the target of being discarded, and as high as 57% of the people indicate, the fresh food materials have short storage life and are most easily discarded. Therefore, how to keep fresh of fresh food is a fundamental measure for solving the problem of waste.
Because the current environmental protection idea is more and more attentive, the use of Freon refrigerant is forbidden from the sustainable development perspective, which increases the difficulty of fresh-keeping means and equipment and provides higher and more severe technical requirements for food fresh-keeping.
Disclosure of Invention
The invention aims to provide an ultra-long-term sterilization vacuum moisturizing and fresh-keeping method and a fresh-keeping device, which achieve the ultra-long-term fresh-keeping effect of fresh goods by sterilizing a low-temperature vacuum saturated steam environment, are environment-friendly and low in consumption, and have remarkable economic benefit and social value compared with the traditional fresh-keeping means.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an ultra-long-acting sterilization vacuum moisturizing and fresh-keeping method comprises the following steps:
firstly, putting fresh articles into a heat-insulating airtight cavity;
closing the heat-insulating airtight door to seal, and then sterilizing the heat-insulating airtight cavity;
meanwhile, refrigerating the heat-insulating airtight cavity, and controlling the temperature in the heat-insulating airtight cavity to be kept at 2-5 ℃;
then, carrying out vacuum pumping treatment on the heat-insulating airtight cavity, and controlling the pressure intensity in the heat-insulating airtight cavity to be kept at 400-500 Pa;
and meanwhile, humidifying the heat-insulating airtight cavity, and controlling the humidity in the heat-insulating airtight cavity to be 90% -saturated humidity:
according to the steps and procedures, fresh vegetables, flowers, carcasses, meat or various cooked foods are treated, the preservation period can be prolonged by 5-10 times, and the phenomena of quality change or appearance deterioration and the like are avoided.
Preferably, the sterilization treatment includes any one or both of ozone sterilization and titanium dioxide photocatalyst sterilization.
Preferably, the humidification treatment includes humidification treatment using atomization of liquid water.
As another aspect of the present invention, a freshness keeping device includes:
a preservation module having a thermally insulated, air-tight cavity for storing fresh items;
the sterilization module is used for performing sterilization treatment on the heat-insulating airtight cavity;
the refrigeration module is used for refrigerating the heat-insulating airtight cavity;
the vacuumizing module is used for vacuumizing the heat-insulating airtight cavity;
the humidifying module is used for humidifying the heat-insulating airtight cavity;
and the control module is used for controlling the sterilization module to sterilize the put fresh goods, controlling the temperature to be kept at 2-5 ℃, controlling the pressure to be kept at 400-500 Pa (note: 1Pa ═ 10Dyne/cm2), and controlling the humidity to be 90-saturated humidity.
Preferably, the storage module has an openable heat-insulating airtight door, the opening at the opened position of the heat-insulating airtight door is used as a passage for fresh food to enter and exit the heat-insulating airtight cavity when the heat-insulating airtight door is opened, and the heat-insulating airtight door is closed to maintain the airtight state in the heat-insulating airtight cavity.
Preferably, a manual vacuum pressure release valve is arranged on the heat-insulation airtight door, and the inside and the outside of the sealed cavity can be in an isobaric state by starting the vacuum pressure release valve so as to facilitate the opening and closing of the heat-insulation airtight door;
and/or
A microswitch is arranged at the opening and closing position of the door frame of the heat-insulation airtight door and is in signal connection with the control module and used for controlling the opening and closing of the vacuumizing module in a linkage manner, so that when the heat-insulation airtight door is opened, the vacuumizing module is not started, and when the heat-insulation airtight door is closed, the vacuumizing module is started;
and/or
The periphery of the heat-insulation airtight door is provided with an airtight seal strip, and the heat-insulation airtight door is in pivot joint with the heat-insulation airtight cavity.
Preferably, the heat-insulating airtight cavity comprises any one of a warehouse, a storage container, a logistics container, a refrigerated cabinet and a refrigerator in specific application.
Preferably, the refrigeration module comprises a refrigerant compressor, an evaporator, a condenser, a capillary tube and a refrigerant in a pipeline which are connected, the evaporator is installed in the heat-insulating airtight cavity and is matched with the internal fan, and the condenser is arranged outside the heat-insulating airtight cavity and is matched with the external fan;
the sterilization module comprises an ozone generator fixed at the air outlet of the indoor fan;
the vacuumizing module comprises a vacuum pump set, the vacuum pump set comprises one or more vacuum pumps which are combined in series or in parallel through a gas pipeline provided with a one-way valve and an electromagnetic valve, the input end of the vacuum pump set is provided with an air inlet pipe, and an air inlet of the air inlet pipe is arranged in the heat-insulating airtight cavity;
the humidification module comprises a water storage tank, the water storage tank is connected with a water pipe, the water pipe is provided with at least one spray head in the heat-insulation airtight cavity, and the water pipe is provided with a liquid electromagnetic valve, a liquid one-way valve and an adjustable current limiter.
Preferably, the output end of the vacuum pump set is provided with an air outlet pipe, the air outlet pipe is provided with an air one-way valve and is connected to the water storage tank, the air outlet pipe is provided with an air outlet arranged outside the heat-insulating airtight cavity, and the front end of the air outlet is provided with a pressure release valve;
and/or
And a filter is arranged at the air inlet of the air inlet pipe.
Preferably, a humidity sensor, a temperature sensor and an air pressure sensor are arranged in the heat-insulating airtight cavity,
the control module comprises a central control circuit, a humidity control circuit, a temperature control circuit and a vacuum control circuit which are in signal communication;
the humidity sensor is in signal connection with a humidity control circuit, the humidity control circuit is in signal connection with a humidifying module,
the temperature sensor is in signal connection with a temperature control circuit, the temperature control circuit is in signal connection with a refrigeration module,
the air pressure sensor is in signal connection with the vacuum control circuit, the vacuum control circuit is in signal connection with the vacuumizing module,
the central control module is used for controlling signals in a general mode and inputting threshold values;
the control module is installed and integrated on a central control panel, the central control panel is installed on the preservation module, and the central control panel is provided with a knob, a panel, a key and a display screen which are related to the central control module.
Compared with the prior art, the invention has the beneficial effects that:
the fresh-keeping function of the fresh-keeping articles is achieved in a low-temperature vacuum saturated steam environment, compared with the traditional cold storage and fresh-keeping method and equipment, the fresh-keeping period is prolonged by 5-10 times, and the method is environment-friendly and low in consumption. If the fresh-keeping agent is put into application, fresh-keeping of fresh food in the processes of transportation and storage can be ensured, loss and waste of storage and transportation links are avoided, and the fresh-keeping agent has commercial value and social significance.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
FIG. 2 is a schematic circuit diagram of the vacuum pump assembly of FIG. 1 in accordance with the present invention.
Fig. 3 is an overall schematic diagram of embodiment 3 of the present invention.
FIG. 4 is a schematic diagram showing the structure of the internal important components in embodiment 3 of the present invention.
Fig. 5 is an installation diagram of important component devices of embodiment 3 of the present invention.
Fig. 6 is a schematic view of the installation of the internal fan 4.5, evaporator and ozone generator of example 3 of the present invention.
Fig. 7 is a schematic view of a water storage tank according to embodiment 3 of the present invention.
Fig. 8 is an overall schematic view of embodiment 4 of the present invention.
FIG. 9 is a structural diagram of an internal important component of the irregular section of the embodiment 4 of the invention.
Fig. 10 is a schematic diagram of the installation of important component devices of embodiment 4 of the present invention.
FIG. 11 is an overall schematic view of embodiment 5 of the present invention.
FIG. 12 is a schematic view showing the internal structure of an important module of example 5 of the present invention with the outer frame and the insulating layer removed.
Fig. 13 is an installation diagram of important component devices of embodiment 5 of the present invention.
FIG. 14 is an overall schematic view of embodiment 6 of the present invention.
FIG. 15 is a schematic diagram showing the internal structure of an important component of example 6 of the present invention after irregular cutting.
FIG. 16 is a schematic diagram showing the installation of important component devices in embodiment 6 of the present invention.
FIG. 17 is an overall schematic view of embodiment 7 of the present invention
FIG. 18 is a perspective view of an important part of example 7 of the present invention, which is cut irregularly.
Fig. 19 is a perspective view of the essential components of embodiment 7 of the present invention with the outer frame removed.
Fig. 20 is a perspective view showing the installation of important components and devices from another viewing angle according to embodiment 7 of the present invention.
(note: the relevant valve and sensor symbols and the like in FIGS. 1 and 2 are not drawn and shown in the following figures as physical parts, but they do not constitute any technical hurdle for a person skilled in the art, and are omitted in the following figures due to the difficulty of drawing and the prevention of drawing clutter.)
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it is understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the contents of the present invention, and these equivalents also fall within the scope defined in the present application.
Example 1: ultra-long-acting sterilization vacuum moisturizing and fresh-keeping method
The super-long-acting sterilization vacuum moisturizing and fresh-keeping method (hereinafter referred to as a "freshness-keeping method") provided by the present example is to put fresh goods into a closed container (heat-insulating airtight cavity) and perform sterilization treatment; then the temperature is reduced to 2-5 ℃, the internal air pressure is reduced to 400-500 Pa, and the internal of the closed container is maintained in a saturated humidity state.
The fresh-keeping method takes the sterilized low-temperature vacuum saturated steam environment as the basic theoretical basis of the invention to achieve the fresh-keeping function of the fresh goods, and can keep the fresh goods fresh for a long term.
The current environmental protection issue is positive, fluorine-containing refrigerant is forbidden, and the refrigerant is saturated with water and kept fresh in vacuum, so that the refrigerant has environmental protection value; meanwhile, according to experiments, compared with the traditional refrigeration and preservation, the fresh-keeping period of the fresh-keeping food is prolonged by 5-10 times, so that the fresh-keeping food has a high commercial value.
Fresh items to be preserved include, for example: fish, meat, vegetables, fresh flowers or other cooked foods.
The sterilization is preferably performed by ozone sterilization, but is not limited to this example, and sterilization using a titanium dioxide photocatalyst or other types of sterilization is also suitable.
Example 2: sterilizing vacuum moisturizing fresh-keeping system
Can be installed in any heat-insulating airtight cavity 1.0 with an openable heat-insulating airtight door 1.1, and can sterilize the interior of the heat-insulating airtight cavity 1.0 and provide a low-temperature vacuum saturated steam environment for preservation. The system specifically comprises the following modules:
and the sterilization module 5.0 is used for performing sterilization treatment on the inside of the heat-insulating airtight cavity 1.0 through the control module 6.0.
Specifically, an ozone generator 5.1 is used for producing high-concentration ozone as a safe sterilization means; when the specific installation, the installation is fixed in the inside fan 4.5 front side of refrigeration module 4.0, through inside fan 4.5's fan, can with ozone generator 5.1, produced ozone molecule evenly distributed in the airtight cavity of adiabatic 1.0 of effect, do comprehensive safe disinfecting again to the fresh goods of just entering the cabinet. Without being limited to this example, a titanium dioxide photocatalyst sterilization apparatus may also be used.
A refrigeration module 4.0 for refrigerating 1.0 in the heat-insulating airtight cavity, wherein, on the refrigeration side, an internal fan 4.5 is provided with a group of fans which can be forcibly cooled to the required low temperature when fresh goods are put into the cabinet for the first time, and a low-temperature environment below 5 ℃ is manufactured in the heat-insulating airtight cavity 1.0 through a control module 6.0, and the optimal temperature is ideally 2-5 ℃.
The main equipment comprises a refrigerant compressor 4.1, an evaporator 4.4, a condenser 4.2, a capillary tube 4.3, a refrigerant in the pipeline, an internal fan 4.5 and an external fan 4.6.
The refrigerant compressor 4.1 pumps the refrigerant to the evaporator 4.4 through the capillary tube 4.3, and the refrigerant absorbs heat in the evaporator 4.4 and reduces the ambient temperature; the refrigerant returned by the evaporator 4.4 returns to the refrigerant compressor 4.1, is compressed and then is sent to the condenser 4.2, the refrigerant vapor is condensed and liquefied, and the absorbed heat is discharged to the surrounding environment; the evaporator 4.4 is disposed in the acting heat-insulating airtight cavity 1.0, and the pipelines of the evaporator 4.4 entering and exiting the heat-insulating airtight cavity 1.0 are all processed in an airtight way.
And the vacuumizing module 2.0 is used for vacuumizing the heat-insulating airtight cavity and controlling the pressure to be kept at 400-500 Pa through the control module 6.0.
The main equipment is a vacuum pump set 2.3, the vacuum pump set 2.3 comprises components shown in a circuit schematic diagram of figure 2, and the components comprise a connecting pipeline, a one-way valve 2.3.1, an electromagnetic valve 2.3.2.1, an electromagnetic valve 2.3.2.2 and the like; the vacuum pump group consists of one vacuum pump 2.3.3 or more than one vacuum pump 2.3.3, the one-way valve 2.3.1, the electromagnetic valve 2.3.2 and the like; more than one vacuum pump 2.3.3 is combined in series or in parallel through a one-way valve 2.3.1, an electromagnetic valve 2.3.2 and the like; particularly, at the initial stage of vacuum pumping, the air pressure in the heat-insulating airtight cavity 1.0 is still high, and when the air pressure is higher than 1kPa, a plurality of vacuum pumps 2.3.3 are combined in parallel to synchronously work so as to increase the instantaneous air pumping amount; in the final stage of vacuum pumping, when the air pressure in the heat-insulating airtight cavity 1.0 is lower than 1kPa, a plurality of vacuum pumps 2.3.3 work synchronously, and the vacuum pumps 2.3.3 are combined in series to share the air pressure intensity between the vacuum inlet and the vacuum outlet.
An air inlet pipe 2.6 is arranged at the input end of the vacuum pump group 2.3, an air inlet 2.1 is arranged in the heat-insulating airtight cavity 1.0 for mounting, and an inlet filter can be additionally arranged on the air inlet 2.1 as required to serve as an air outlet in the heat-insulating airtight cavity 1.0. The gas inlet pipe 2.6 is provided with a gas one-way valve 2.2.
The output end of the vacuum pump set 2.3 is provided with an air outlet pipe 2.5, the air outlet pipe 2.5 is provided with an air one-way valve 2.2, and the air outlet pipe is connected into the water storage tank 3.1 to provide an air source for humidifying and spraying water to the water storage tank, thereby reasonably and comprehensively utilizing energy. The air outlet pipe 2.5 is provided with an air outlet arranged outside the heat-insulating airtight cavity 1.0, and the front end of the air outlet is provided with a pressure release valve 2.4 for controlling the air pressure of an air source input into the water storage tank.
And the humidifying module 3.0 is used for humidifying the heat-insulating airtight cavity and controlling the humidity to be 90% -saturated humidity through the control module 6.0.
The main equipment is a water storage tank 3.1, fill water in the water storage tank 3.1, water storage tank 3.1 can add water manually or through an outside water supply source automatic water supply. In the example, the water pipe provided with the liquid one-way valve 3.2 is connected with an external water source 3.3, the water storage tank 3.1 is matched with a water level sensor 3.4, and a detection head floating ball switch 3.5 of the water level sensor is arranged in the water storage tank 3.1 so as to control the liquid level inside the water storage tank 3.1.
A water pipe 3.6 is connected in a water storage tank, at least one group of spray heads 3.10 are distributed in a heat-insulating airtight cavity 1.0 of the water pipe 3.6 to provide required relative humidity, a liquid electromagnetic valve 3.7 (connected with a humidity sensor 6.3 through signals), a liquid one-way valve 3.8 and an adjustable current limiter 3.9 are arranged on the water pipe 3.6, the on-off circuit of the water pipe is controlled, whether the spray heads 3.10 spray or not is controlled, and flow control is further performed.
As a means of controlling the relative humidity within said insulating, air-tight cavity; the spray head 3.10, the relevant electromagnetic valve 3.7, the humidity sensor 1.2, the humidity control circuit 6.3, the air pressure sensor 1.4, the vacuum control circuit 6.2 and the like jointly form constant humidity control on the inside of the heat-insulating airtight cavity.
The water inlet of the water pipe 3.6 is positioned at the bottom of the water storage tank 3.1 so as to lead out the water therein.
And the detection module is used for detecting the humidity, the temperature and the air pressure of the installed heat-insulating airtight cavity 1.0, so that the obtained data information is fed back to the control module 6.0, and the control module judges and starts corresponding equipment to operate according to comparison between the feedback information and a threshold value of the feedback information.
The fresh-keeping device comprises a humidity sensor 1.2, a temperature sensor 1.3 and an air pressure sensor 1.4 which are all arranged in a closed cavity 1.0 to be fresh-kept, and the airtight local environment is monitored in real time.
Control module 6.0 for control sterilization module, refrigeration module, evacuation module, humidification module, control includes:
the vacuum control circuit 6.2 is connected with the air pressure sensor 1.2 and is used for vacuumizing and realizing constant-pressure 400-500 Pa control on vacuum;
the humidity control circuit 6.3 is connected with the humidity sensor 1.2 and is used for humidifying and maintaining constant humidity control of saturated water vapor;
the temperature control circuit 6.4 is connected with the temperature sensor 1.3 and is used for cooling and realizing the control of constant temperature of 2-5 ℃.
The constant temperature, constant humidity, constant pressure, flow control and the like are integrated into a central control assembly which comprises a central control circuit 6.1, all control signals of a main pipe and completes the set work according to the parameters preset by a user; the central control assembly is combined with a related knob, a panel, a shell and the like to form the master control console, so that the operation is convenient;
when the sterilizing device is used specifically, after fresh goods are put into the installed carrier, namely the heat-insulating airtight cavity 1.0, the sterilizing subsystem is started to sterilize through the central control circuit 6.1, and the sterilizing module 5.0 is closed after the sterilizing stroke is finished; then the refrigeration module 4.0 is started to cool to 2-5 ℃, and the refrigeration module 4.0 is closed after the refrigeration stroke is finished; restarting the vacuumizing module 2.0, and reducing the internal air pressure of the heat-insulating airtight cavity 1.0 to 400-500 Pa; meanwhile, the humidity monitoring also works synchronously, and the inside of the heat-insulating airtight cavity 1.0 is kept at the saturated humidity at any time through the humidifying module 3.0; the fresh goods are placed in the environment with sterilization, low temperature, low pressure and saturated humidity formed by the system, so that the freshness can be completely maintained, the ultra-long-term freshness can be maintained without mildew or taint of odor, and the quality guarantee period is prolonged by 5-10 times.
Example 3: super long-term effect sterilization vacuum moisturizing fresh-keeping warehouse A
The system of example 2 was used and the above-described freshness system was installed in a warehouse module according to the installation and use requirements described above.
The warehouse module is a specific application form of the heat-insulating airtight cavity 1.0, and specifically comprises the following components:
a base truss 1.3.1, said base truss 1.3.1 being mounted on a base level for raising and supporting the warehouse modules;
the floor slab 1.3.2 is fixed on the base truss 1.3.1 and used as the ground of the warehouse module;
the peripheral wall board 1.3.5 comprises a vertical wall board and a wall corner board, the cross section of the wall corner board is L-shaped, the vertical wall board is positioned at the four corners and is vertically arranged, the side surface of the wall corner board is sealed by the vertical wall board, and the vertical wall board and the wall corner board are enclosed to form an enclosing structure for enclosing the floor board 1.3.2;
the supporting truss 1.3.3 is fixed on the peripheral wall plate 1.3.5;
the terrace plate 1.3.4 is fixed on the supporting truss 1.3.3, and forms a closed heat-insulating airtight cavity 1.0 together with the terrace plate 1.3.2 and the peripheral wall plate 1.3.5
The goods shelf 1.3.6 is arranged inside the peripheral wall plate 1.3.5 and used for storing fresh goods;
the warehouse door 1.1 is the heat-insulating airtight door 1.1, an airtight seal is arranged on the periphery of a door frame, the airtight seal can keep the airtight of the warehouse module when the warehouse door is closed, and when the warehouse door is opened, the opening is used as a passage for storing the fresh goods in and out of the heat-insulating airtight cavity 1.0. The vacuum pressure relief valve is installed on one vertical wall plate and is installed in a hinged mode, the manual vacuum pressure relief valve is arranged on the warehouse door 1.1, and when the vacuum pressure relief valve is opened manually, the inside and the outside of the heat-insulation airtight cavity can be in an isobaric state, so that the heat-insulation airtight door 1.1 can be opened conveniently. A microswitch is arranged at the door frame of the warehouse door 1.1, when the heat insulation airtight door 1.1 is opened, the microswitch is in a circuit-breaking state because the inside and the outside of the heat insulation airtight cavity 1.0 are in an isobaric state, and the vacuum pump set 2.3 cannot be started; if and only if the micro switch is in a passage state when the heat-insulating airtight door 1.1 is locked accurately, the vacuum pump set 2.3 can be in a running state;
and a cabinet 0 is fixedly arranged outside the peripheral wall plate 1.3.5, and the cabinet 0 is composed of a rectangular frame 0.2, a coaming 0.1 (capable of being opened to form an access door) and a bottom plate 0.3.
The vacuum pump set 2.3, the water storage tank 3.1, the refrigerant compressor 4.1, the condenser 4.2, the capillary tube 4.3 and the external fan 4.6 are all arranged in the cabinet 0,
the evaporator 4.4 and the internal fan 4.5 are arranged in the warehouse module, the ozone generator 5.1 is arranged in front of the internal fan 4.5 in the warehouse module, and the fan of the internal fan 4.5 is used for driving the airflow circulation in the warehouse module to realize the ozone dispersion sterilization.
The devices arranged inside and outside the warehouse are connected through corresponding water pipelines and gas pipelines, and each pipeline is airtight when penetrating through the peripheral wall plate 1.3.5.
The warehouse of this example is used to keep fresh to give birth to fresh goods to sterilization low temperature vacuum saturated steam environment, reaches give birth to fresh goods fresh-keeping function, and with traditional cold-stored fresh-keeping warehouse comparison, its freshness date prolongs 5 ~ 10 times, and environmental protection and low consumption. If the fresh food preservation agent is put into application, the storage time of the fresh food can be greatly prolonged, the appearance and the quality of the preserved fresh food can be obviously improved, and the fresh food preservation agent has commercial value and social significance.
Example 4: ultra-long-effect sterilization vacuum moisturizing fresh-keeping container B
The system of example 2 was used and the above described freshness system was installed in the container module according to the installation and use requirements described above.
The container module is a specific implementation form of a heat-insulating airtight cavity 1.0, and specifically comprises the following components:
the cabinet body 1.0, for the seal structure container of rectangle, uses the angle steel to consolidate in frame side position, increases the steadiness, and inside sets up thermal-insulated intermediate layer, has the chamber door 1.1 of running from opposite directions, and the articulated fixing is on box 1.0, and frame week side sets up the airtight strip of paper used for sealing, can keep the airtight of container module when closing, and chamber door 1.1 forms sealed inside cavity with box 1.0 jointly and is used for depositing living fresh goods. When the fresh food storage box is opened, the opening is used as a passage for storing the fresh food into and out of the heat-insulating airtight cavity. The box door 1.1 is provided with a manual vacuum pressure relief valve, and when the vacuum pressure relief valve is manually opened, the inside and the outside of the heat-insulating airtight cavity can be in an isobaric state, so that the heat-insulating airtight door 1.1, namely the box door 1.1, can be opened conveniently. A microswitch is arranged at the door frame of the box door 1.1, when the heat-insulating airtight door 1.1 is opened, the microswitch is in a circuit-breaking state because the inside and the outside of the heat-insulating airtight cavity 1.0 are in an isobaric state, and the vacuum pump set 2.3 cannot be started; if and only if the microswitch is in the on state when the door 1.1 is locked exactly, the vacuum pump group 2.3 can be in the running state.
One corner in the cabinet body is provided with a cabinet 0, the cabinet 0 is formed by a rectangular frame 0.2, a coaming 0.1 (which can be opened to form an access door) and a bottom plate 0.3.
The vacuum pump set 2.3, the water storage tank 3.1, the refrigerant compressor 4.1, the condenser 4.2, the capillary tube 4.3 and the external fan 4.6 are all arranged in the cabinet 0, the evaporator 4.4 and the internal fan 4.5 are arranged at the inner upper part of the cabinet body 1.0, the ozone generator 5.1 is arranged at the front part of the internal fan 4.5 in the cabinet body 1.0, and the ozone dispersion sterilization is realized by utilizing the fan of the internal fan 4.5. The spray head 3.10 is arranged at the top and sprays water mist downwards.
The equipment installed in the cabinet 0 and the cabinet body 1.0 are connected through corresponding water pipelines and gas pipelines, and each pipeline is airtight when penetrating through the surrounding plate 0.1.
The container of this example is used to keep fresh to give birth to bright article to sterilization low temperature vacuum saturated vapor environment reaches the fresh-keeping function of giving birth to bright article, and with traditional cold-stored fresh-keeping container comparison, its freshness date prolongs 5 ~ 10 times, and environmental protection and low consumption. If the fresh-keeping agent is put into application, fresh-keeping of fresh food in the processes of transportation and storage can be ensured, loss and waste of storage and transportation links are avoided, and the fresh-keeping agent has commercial value and social significance.
Example 5: super-long-effect sterilization vacuum moisturizing deviceFresh-keeping horizontal cabinet C
The system of example 2 was used and the above described preservation system was installed in a commercial horizontal chest module according to the installation and use requirements described above.
The horizontal cabinet module is a specific implementation form of a heat-insulating airtight cavity 1.0, and specifically comprises the following components:
the horizontal cabinet body 1.0 is a rectangular horizontal cabinet with a sealing structure, angle steel is used for reinforcing the side position of the frame to increase the stability,
two cabinet doors 1.1 are arranged on the top surface, so that the cabinet doors can be conveniently opened from two sides, one adjacent side of each cabinet door 1.1 is hinged to the horizontal cabinet body 1.0, and when the cabinet doors are opened, the openings are used as channels for storing fresh food to enter and exit the heat-insulating airtight cavities.
The bottom of the horizontal cabinet body is provided with a cabinet 0, and the cabinet 0 is composed of a rectangular frame 0.2, a coaming 0.1 (capable of being opened to form an access door) and a bottom plate 0.3.
The vacuum pump set 2.3, the water storage tank 3.1, the refrigerant compressor 4.1, the condenser 4.2, the capillary tube 4.3 and the external fan 4.6 are all arranged in the cabinet 0, the evaporator 4.4 and the internal fan 4.5 are arranged in the cabinet body 1.0, the ozone generator 5.1 is arranged in the front of the internal fan 4.5 in the cabinet body 1.0, and the ozone dispersion sterilization is realized by utilizing the fan of the internal fan 4.5. The spray head 3.10 is arranged in the middle of one side of the inside of the horizontal cabinet body 1.0.
The equipment installed in the cabinet 0 and the cabinet body 1.0 are connected through corresponding water pipelines and gas pipelines, and each pipeline is airtight when penetrating through the surrounding plate 0.1.
The bottom of the cabinet 0 is provided with supporting legs for supporting the whole horizontal cabinet.
The horizontal cabinet of using this example keeps fresh the fresh-keeping article to low temperature vacuum saturated vapor environment reaches fresh-keeping article fresh-keeping function, and with traditional cold-stored fresh-keeping refrigerator-freezer comparison, its freshness date prolongs 5 ~ 10 times, and environmental protection low consumption. The fresh-keeping agent is suitable for being put in commercial application environments, such as supermarket, hotel and other commercial environments, and can have a super-long fresh-keeping effect.
Example 6: super-longSterilizing vacuum moisture preserving fresh-keeping vertical cabinet D
The system of example 2 was used and the above described freshness system was installed in a commercial vertical cabinet module according to the installation and use requirements described above.
The vertical cabinet module is a specific implementation form of a heat-insulating airtight cavity 1.0, and specifically comprises the following components:
the vertical cabinet body 1.0 is a rectangular vertical cabinet style, the vertical cabinet body is in a longer direction in the height direction, a cabinet door 1.1 in airtight fit is arranged on the front side end face of the vertical cabinet body 1.0, one side (left side) in the vertical direction of the cabinet door is hinged and installed on the vertical cabinet body 1.0, and when the vertical cabinet body is opened, the opening is used as a passage for storing fresh goods to enter and exit from the heat insulation airtight cavity. The vertical cabinet body 1.0 is cup jointed through interior casing and shell body and is constituted, is equipped with thermal-insulated intermediate layer between the two, cabinet body 1.0 is inside to be equipped with the multilayer grid board according to the direction of height, realizes fixing placing to grid tray through setting up the boss on the lateral wall of casing including. Make things convenient for the layering to place the bright article, increase the utilization ratio and the classification function of storing.
The bottom of the vertical cabinet body 1.0 is provided with a cabinet 0, the cabinet 0 is composed of a rectangular frame 0.2, a coaming 0.1 (capable of being opened to form an access door) and a bottom plate 0.3.
The vacuum pump set 2.3, the water storage tank 3.1, the refrigerant compressor 4.1, the condenser 4.2, the capillary tube 4.3 and the external fan 4.6 are all arranged in the cabinet 0, the evaporator 4.4 and the internal fan 4.5 are arranged on the upper part of the cabinet body 1.0 to realize air flow 1.0.3 shown in the attached drawing, the ozone generator 5.1 is arranged on the front part of the internal fan 4.5 in the cabinet body 1.0, and the fan of the internal fan 4.5 is used for realizing ozone dispersion sterilization. The spray head 3.10 is arranged in the middle of one side of the interior of the vertical cabinet body 1.0.
The equipment installed in the cabinet 0 and the cabinet body 1.0 are connected through corresponding water pipelines and gas pipelines, and each pipeline is airtight when penetrating through the surrounding plate 0.1.
The bottom of the cabinet 0 is provided with supporting legs for supporting the whole vertical cabinet.
The vertical cabinet of using this example keeps fresh the fresh goods to sterilization low temperature vacuum saturated steam environment reaches fresh goods fresh-keeping function, and with traditional cold-stored fresh-keeping cabinet comparison, its freshness date prolongs 5 ~ 10 times, and environmental protection and low consumption. The fresh-keeping agent is suitable for being put in commercial application environments, such as supermarket, hotel and other commercial environments, and can have a super-long fresh-keeping effect.
Example 7: household super-long-effect sterilization and moisturizing vacuum fresh-keeping refrigerator E
The system of example 2 was used and the above-described freshness system was installed in a domestic type refrigerator module according to the above installation and use requirements.
The refrigerator module is a specific implementation form of a heat-insulating airtight cavity 1.0, and specifically comprises the following components:
the refrigerator body has three independent separate areas, a fresh-keeping cabinet 1.0 at the top, a freezer cabinet 7.0 at the middle, and a cabinet 0 at the bottom.
Fresh-keeping cabinet 1.0 cup joints through interior casing 1.0.1 and shell body 1.0.0 and constitutes, is equipped with thermal-insulated intermediate layer 1.0.2 between the two, and fresh-keeping cabinet 1.0's front side has rather than airtight complex goes up cabinet door 1.1, fresh-keeping cabinet 1.0 is inside to be equipped with the multilayer grid board according to the direction of height, realizes fixing placing to grid tray through setting up the boss on the lateral wall of interior casing 1.0.1. Make things convenient for the layering to place the bright article, increase the utilization ratio and the classification function of storing. An evaporator 4.4 and an internal fan 4.5 are fixed at the top of the fresh-keeping cabinet 1.0, an ozone generator 5.1 is fixed in front of the internal fan 4.5, so that cold air 1.0.3 with a sterilization function is released inside the fresh-keeping cabinet 1.0, and a spray head 3.10 is arranged in the middle of one side inside the fresh-keeping cabinet 1.0.
A freezer cabinet 7.0, the interior of which is provided with a freezer pipe, in particular an upper freezer pipe 7.2 arranged on the top side wall and a lower freezer pipe 7.3 arranged on the bottom side wall, and a middle cabinet door 7.1 is matched,
the bottom of the refrigerator main body 1.0 is provided with a cabinet 0, the vacuum pump set 2.3, the water storage tank 3.1, the refrigerant compressor 4.1, the condenser 4.2, the capillary tube 4.3 and the external fan 4.6 are all arranged in the cabinet 0, and the equipment installed in the cabinet 0 and the equipment in the fresh-keeping cabinet 1.0 are connected through corresponding water pipelines and gas pipelines.
The bottom of the refrigerator body is provided with supporting legs for supporting the whole refrigerator body.
The refrigerator of this example is used to keep fresh to give birth to the bright article and keep fresh to sterilization low temperature vacuum saturated vapor environment, reaches the fresh-keeping function of giving birth to bright article, and compare with traditional domestic fresh-keeping refrigerator, its freshness date prolongs 5 ~ 10 times, and environmental protection and low consumption. The household food fresh-keeping device is economical and practical, greatly improves the fresh-keeping quality and period of food, protects the health of family members, and reduces food waste.

Claims (10)

1. An ultra-long-acting sterilization vacuum moisturizing and fresh-keeping method is characterized by comprising the following steps and procedures:
firstly, putting fresh articles into a heat-insulating airtight cavity;
closing the heat-insulating airtight door to seal, and then sterilizing the heat-insulating airtight cavity;
meanwhile, refrigerating the heat-insulating airtight cavity, and controlling the temperature in the heat-insulating airtight cavity to be kept at 2-5 ℃;
then, carrying out vacuum pumping treatment on the heat-insulating airtight cavity, and controlling the pressure intensity in the heat-insulating airtight cavity to be kept at 400-500 Pa;
and meanwhile, humidifying the heat-insulating airtight cavity, and controlling the humidity in the heat-insulating airtight cavity to be 90% -saturated humidity:
according to the steps and procedures, fresh vegetables, flowers, carcasses, meat or various cooked foods are treated, the preservation period can be prolonged by 5-10 times, and the phenomena of quality change or appearance deterioration and the like are avoided.
2. The method as claimed in claim 1, wherein the sterilization treatment comprises one or both of ozone sterilization and titanium dioxide photocatalyst sterilization.
3. The method as claimed in claim 1, wherein the humidification treatment comprises a humidification treatment using atomization of liquid water.
4. A freshness retaining device, comprising:
a preservation module having a thermally insulated, air-tight cavity for storing fresh items;
the sterilization module is used for performing sterilization treatment on the heat-insulating airtight cavity;
the refrigeration module is used for refrigerating the heat-insulating airtight cavity;
the vacuumizing module is used for vacuumizing the heat-insulating airtight cavity;
the humidifying module is used for humidifying the heat-insulating airtight cavity;
and the control module is used for controlling the sterilization module to sterilize the put fresh goods, controlling the temperature to be kept at 2-5 ℃, controlling the pressure to be kept at 400-500 Pa and controlling the humidity to be 90-saturated humidity.
5. The freshness retaining device according to claim 4,
the preservation module is provided with an openable heat-insulating airtight door, and when the heat-insulating airtight door is opened, the opened opening of the heat-insulating airtight door is used as a passage for fresh goods to enter and exit the heat-insulating airtight cavity; when the heat-insulating airtight door is closed, the airtight state in the heat-insulating airtight cavity can be maintained.
6. The freshness retaining device according to claim 5,
a manual vacuum pressure release valve is arranged on the heat-insulation airtight door, and the inside and the outside of the heat-insulation airtight cavity can be in an isobaric state by starting the vacuum pressure release valve so as to facilitate the opening and closing of the heat-insulation airtight door;
and/or
A microswitch is arranged at the opening and closing position of the door frame of the heat-insulation airtight door and is in signal connection with the control module and used for controlling the opening and closing of the vacuumizing module in a linkage manner, so that when the heat-insulation airtight door is opened, the vacuumizing module is not started, and when the heat-insulation airtight door is closed, the vacuumizing module is started;
and/or
The periphery of the heat-insulation airtight door is provided with an airtight seal strip, and the heat-insulation airtight door is in pivot joint with the heat-insulation airtight cavity.
7. The freshness retaining device according to claim 4,
the heat-insulating airtight cavity comprises any one of a warehouse, a storage container, a logistics container, a refrigerated cabinet and a refrigerator in specific application.
8. The freshness retaining device according to claim 4,
the refrigeration module comprises a refrigerant compressor, an evaporator, a condenser, a capillary tube and a refrigerant in a pipeline which are connected, the evaporator is installed in the heat-insulating airtight cavity and matched with the internal fan, and the condenser is arranged outside the heat-insulating airtight cavity and matched with the external fan;
the sterilization module comprises an ozone generator fixed at the air outlet of the indoor fan;
the vacuumizing module comprises a vacuum pump set, the vacuum pump set comprises one or more vacuum pumps which are combined in series or in parallel through a gas pipeline provided with a one-way valve and an electromagnetic valve, the input end of the vacuum pump set is provided with an air inlet pipe, and an air inlet of the air inlet pipe is arranged in the heat-insulating airtight cavity;
the humidification module comprises a water storage tank, the water storage tank is connected with a water pipe, the water pipe is provided with at least one spray head in the heat-insulation airtight cavity, and the water pipe is provided with a liquid electromagnetic valve, a liquid one-way valve and an adjustable current limiter.
9. The fresh-keeping device of claim 8, wherein an air outlet pipe is arranged at the output end of the vacuum pump set, a gas one-way valve is arranged on the air outlet pipe, the air outlet pipe is connected to the water storage tank, an air outlet arranged outside the heat-insulating airtight cavity is arranged on the air outlet pipe, and a pressure release valve is arranged at the front end of the air outlet;
and/or
And a filter is arranged at the air inlet of the air inlet pipe.
10. The freshness retaining device according to claim 4,
a humidity sensor, a temperature sensor and an air pressure sensor are arranged in the heat-insulating airtight cavity,
the control module comprises a central control circuit, a humidity control circuit, a temperature control circuit and a vacuum control circuit which are in signal communication;
the humidity sensor is in signal connection with a humidity control circuit, the humidity control circuit is in signal connection with a humidifying module,
the temperature sensor is in signal connection with a temperature control circuit, the temperature control circuit is in signal connection with a refrigeration module,
the air pressure sensor is in signal connection with the vacuum control circuit, the vacuum control circuit is in signal connection with the vacuumizing module,
the central control module is used for controlling signals in a general mode and inputting threshold values;
the control module is installed and integrated on a central control panel, the central control panel is installed on the preservation module, and the central control panel is provided with a knob, a panel, a key and a display screen which are related to the central control module.
CN202010093090.9A 2020-02-14 2020-02-14 Ultra-long-effect sterilization vacuum moisturizing and fresh-keeping method and device Pending CN111374167A (en)

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Application publication date: 20200707