WO2024259931A1 - Dispositif de réfrigération et de conservation de fruits et légumes et procédé de conservation de fruits et légumes - Google Patents

Dispositif de réfrigération et de conservation de fruits et légumes et procédé de conservation de fruits et légumes Download PDF

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Publication number
WO2024259931A1
WO2024259931A1 PCT/CN2023/141056 CN2023141056W WO2024259931A1 WO 2024259931 A1 WO2024259931 A1 WO 2024259931A1 CN 2023141056 W CN2023141056 W CN 2023141056W WO 2024259931 A1 WO2024259931 A1 WO 2024259931A1
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WO
WIPO (PCT)
Prior art keywords
chamber
humidity
component
turned
fresh air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/141056
Other languages
English (en)
Chinese (zh)
Inventor
韩鹏
卫广穹
刘华
谢斌斌
苗志强
刘畅
齐方成
肖福佳
刘家豪
李冠铖
苑永光
刘枫
陈晨
何荣森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Publication of WO2024259931A1 publication Critical patent/WO2024259931A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D13/00—Stationary devices, e.g. cold-rooms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
    • F25D2317/04131—Control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile

Definitions

  • the present disclosure is based on an application with CN application number 202310753651.7 and filing date June 21, 2023, and claims priority.
  • the disclosure content of the CN application is hereby introduced into the present disclosure as a whole.
  • the present invention relates to the field of agricultural product preservation, and in particular to a fruit and vegetable refrigeration and preservation device and a fruit and vegetable preservation method.
  • the present disclosure provides a fruit and vegetable refrigeration and preservation device and a fruit and vegetable preservation method, which are used to more effectively adjust the humidity of the fruit and vegetable refrigeration and preservation device.
  • Some embodiments of the present disclosure provide a fruit and vegetable refrigeration and fresh-keeping device, comprising:
  • a chamber configured for storage
  • a refrigeration assembly installed inside the chamber and configured to cool the interior of the chamber
  • a first humidifying assembly is installed inside the chamber to humidify the inside of the chamber
  • a second humidifying component installed inside the chamber to humidify the inside of the chamber; wherein the humidification principles of the first humidifying component and the second humidifying component are different;
  • the fresh air humidification component is arranged inside the chamber and is configured to deliver fresh air into the chamber to The interior of the chamber is humidified.
  • the refrigeration assembly comprises:
  • a condenser connected to the compressor and the air cooler to realize refrigerant circulation
  • the water receiving tray is located below the air cooler.
  • the first humidification component comprises:
  • a wet film humidifier connected to the water receiving tray;
  • the fan is arranged adjacent to the wet film humidifier to evaporate the water in the wet film humidifier.
  • the second humidification component includes:
  • the cooling fan is installed in the chamber
  • the water receiving pan is arranged adjacent to the air cooler.
  • the fresh air humidification component includes:
  • a fresh air outlet is arranged on the wall of the chamber
  • a fresh air return port is arranged on the wall of the chamber
  • a fresh air duct connecting the fresh air outlet and the fresh air return outlet
  • the door assembly is openably and closably arranged at the fresh air outlet.
  • the fruit and vegetable refrigeration and fresh-keeping device further comprises:
  • a gas concentration detection element installed inside the chamber to detect the concentration of carbon dioxide in the chamber;
  • the humidity detection element is installed inside the chamber to detect the humidity in the chamber.
  • the first humidifying component is configured to be turned on according to the following condition: the detected humidity S in the chamber is less than Sk; wherein Sk is a lower limit value of the target humidity in the chamber.
  • the first humidifying component when the humidity in the chamber needs to be increased, if the humidity in the chamber is Sk ⁇ S ⁇ S1, the first humidifying component is also turned on; wherein Sk ⁇ S1, wherein S1 is a set value.
  • the second humidification component is configured to be turned on according to the following conditions:
  • the detected humidity S in the chamber satisfies the following relationship: S4 ⁇ S ⁇ S1; wherein S4 and S1 are both set values, and S4 ⁇ S1.
  • the second humidifying component when the humidity in the chamber needs to be increased, is also turned on if the humidity S in the chamber satisfies the following relationship: S1 ⁇ S ⁇ St; wherein St is the upper limit value of the humidity range in the chamber.
  • the fresh air humidification component is configured to be turned on according to the following conditions: the detected humidity S in the chamber ⁇ S3, and the concentration of carbon dioxide C > C2;
  • the fresh air humidification component is configured to be turned on according to the following conditions: S3 ⁇ S ⁇ Sk, and C>C1;
  • S4, S3, and S2 are all set values, S4 ⁇ S3 ⁇ S2, C2 ⁇ C1, C1 is the upper limit value of the set carbon dioxide concentration range, and C2 is the lower limit value of the set carbon dioxide concentration range.
  • the refrigeration component is configured to be turned on according to the following conditions: the detected humidity in the chamber S ⁇ S0; wherein S1, St, and S0 are set values, S1 ⁇ St ⁇ S0, and St is the upper limit value of the set humidity range in the chamber.
  • the chamber comprises:
  • a storage area is configured to store a substance.
  • the fruit and vegetable refrigeration and fresh-keeping device further comprises:
  • the walking mechanism is installed at the bottom of the chamber to realize the transfer transportation of the fruit and vegetable refrigeration and fresh-keeping device.
  • Some embodiments of the present disclosure also provide a method for preserving fruits and vegetables, comprising the following steps:
  • the detected humidity and gas concentration determine whether the first humidification component, the second humidification component, and the fresh air humidification component are turned on.
  • the first humidification component and the fresh air humidification component are turned on, and the second humidification component is turned off; when the detected humidity S ⁇ S4 and the detected carbon dioxide concentration C ⁇ C2, the first humidification component and the second humidification component are turned on, and the fresh air humidification component is turned off.
  • the first humidification component, the second humidification component and the fresh air humidification component are turned on; when the detected humidity S4 ⁇ S ⁇ S3 and the detected carbon dioxide concentration C ⁇ C2, the first humidification component and the second humidification component are turned on, and the fresh air humidification component is turned off.
  • the first humidification component, the second humidification component and the fresh air humidification component are turned on; when the detected humidity S3 ⁇ S ⁇ S2 and the detected carbon dioxide concentration C ⁇ C2, the first humidification component and the second humidification component are turned on, and the fresh air humidification component is turned off.
  • the first humidification component and the second humidification component are turned on, and the fresh air humidification component is turned off; when the detected humidity S2 ⁇ S ⁇ Sk and the detected carbon dioxide concentration C>C1, the first humidification component, the second humidification component and the fresh air humidification component are turned on.
  • the second humidifying component when the detected humidity Sk ⁇ S ⁇ S1, the second humidifying component is turned on and the fresh air humidifying component is turned off; if the humidity in the chamber is controlled to increase, the first humidifying component is turned on, otherwise the first humidifying component is turned off.
  • the first humidifying component and the fresh air humidifying component are turned off; if the humidity in the chamber is controlled to increase, the second humidifying component is turned on, otherwise the second humidifying component is turned off.
  • the first humidification component, the second humidification component and the fresh air humidification component are turned off.
  • the refrigeration component when the detected humidity S0 ⁇ S, the refrigeration component operates at the maximum frequency; otherwise, the refrigeration component operates normally.
  • the fruit and vegetable refrigeration and preservation device provided by the above technical solution has a first humidification component, a second humidification component and a fresh air humidification component. According to the actual situation, one or more of the three humidification components can be turned on. And the three humidification components adopt different humidification methods and have different humidification effects, so they effectively take into account the requirements of humidification speed, humidification precision control, energy saving and other aspects, and the control of the humidity inside the fruit and vegetable refrigeration and preservation device is more accurate and more targeted, which effectively improves the preservation effect of fruits and vegetables and reduces the loss of fruits and vegetables.
  • the fruit and vegetable refrigeration and preservation device provided by some embodiments of the present disclosure can reduce the loss rate of fruits and vegetables by more than 30%, and the freshness of fruits and vegetables is also better.
  • FIG1 is a schematic diagram of the structure of a fruit and vegetable refrigeration and fresh-keeping device provided in some embodiments of the present disclosure.
  • FIG. 2 is a schematic diagram of a method for preserving fruits and vegetables provided in some embodiments of the present disclosure.
  • FIG3 is a logic control diagram of a method for preserving fruits and vegetables provided in some embodiments of the present disclosure.
  • Reference numerals 1. Chamber; 2. Refrigeration component; 3. First humidification component; 4. Second humidification component; 5. Fresh air humidification component; 6. Gas concentration detection element; 7. Humidity detection element; 11. Installation area; 12. Storage area; 21. Compression machine; 22. condenser; 23. air cooler; 24. water tray; 31. wet film humidifier; 32. fan; 51. fresh air outlet; 52. fresh air return outlet; 53. fresh air duct.
  • the inventor found that the main factor for the decay and deterioration of fruits and vegetables during storage is the unreasonable humidity control in the cold storage. If the humidity in the cold storage can be effectively controlled, the preservation effect of fruits and vegetables can be greatly improved and the loss can be reduced.
  • some embodiments of the present disclosure provide a fruit and vegetable refrigeration and preservation device, comprising a chamber 1, a refrigeration component 2, a first humidification component 3, a second humidification component 4, and a fresh air humidification component 5.
  • the chamber 1 is configured for storage.
  • the refrigeration component 2 is installed inside the chamber 1, and is configured to cool the inside of the chamber 1.
  • the first humidification component 3 is installed inside the chamber 1 to humidify the inside of the chamber 1.
  • the second humidification component 4 is installed inside the chamber 1 to humidify the inside of the chamber 1; wherein the humidification principles of the first humidification component 3 and the second humidification component 4 are different, but both use the condensed water generated by the refrigeration component 2 for humidification.
  • the fresh air humidification component 5 is arranged inside the chamber 1, and is configured to convey fresh air into the chamber 1 to humidify the inside of the chamber 1.
  • the fruit and vegetable refrigeration and preservation device is used to store fruits and vegetables, and has refrigeration and humidity regulation functions.
  • the chamber 1 can be divided into one or more spaces, one or some spaces are used to install the device, and the remaining spaces are used to store fruits and vegetables, so as to meet the different refrigeration and humidity regulation requirements of equipment installation, fruit and vegetable storage, and different types of fruits and vegetables.
  • the installation area 11 and the storage area 12 are connected. Only one storage area 12 is shown, of course, multiple storage areas 12 can also be provided as needed.
  • the refrigeration component 2, the first humidification component 3, the second humidification component 4 and the fresh air humidification component 5 are all installed in the installation area 11; the storage area 12 is configured to store fruits and vegetables. Fruits and vegetables are a general term for vegetables and fruits.
  • the storage area 12 can store one or more kinds of vegetables, and can also store one or more kinds of fruits.
  • the temperature of the storage area 12 is relatively low.
  • the temperature of the storage area 12 is adjusted by the refrigeration component 2 so that the temperature of the storage area 12 meets the storage requirements of the fruits and vegetables.
  • the humidity parameters of the storage area 12 also directly affect the storage efficiency and quality of fruits and vegetables.
  • the first humidification component 3, the second humidification component 4, and the fresh air humidification component 5 are used to jointly control the humidity of the storage area 12.
  • the first humidifying component 3 and the second humidifying component 4 adopt different structures for humidification.
  • the humidification method and principle of the second humidification component 4 are different.
  • the specific structure of the first humidification component 3 and the second humidification component 4 will be introduced in detail later.
  • the water used by the first humidification component 3 and the second humidification component 4 comes from the condensed water generated during the operation of the refrigeration component 2.
  • the humidification effect of the structure adopted by the first humidification component 3 is faster and the humidification amount is larger.
  • the structure adopted by the second humidification component 4 does not require additional humidification components during humidification, which is more conducive to the lightweight of the product.
  • the fresh air humidification component 5 utilizes fresh air for humidification. Since the temperature of the storage area 12 is very low, the temperature of the fresh air will be lowered after entering the storage area 12, which greatly increases the moisture content of the fresh air after entering the storage area 12, thereby utilizing the fresh air to humidify the air in the storage area 12.
  • the refrigeration assembly 2 includes a compressor 21 and a condenser 22.
  • the condenser 22 is connected to the compressor 21 to realize the circulation of the refrigerant to control the temperature in the chamber 1.
  • the structure of the refrigeration assembly 2 can refer to the existing structure and will not be described in detail herein.
  • the fruit and vegetable refrigeration and preservation device further includes a gas concentration detection element 6 and/or a humidity detection element 7.
  • the gas concentration detection element 6 is installed inside the chamber 1, specifically installed on the top of the storage area 12, to detect the concentration of carbon dioxide in the chamber 1.
  • the humidity detection element 7 is installed inside the chamber 1, specifically installed at the fresh air return air port 52 of the installation area 11, to detect the humidity in the chamber 1. By detecting the humidity of the return air, the ambient humidity in the storage area 12 can be determined.
  • the fruit and vegetable refrigeration and fresh-keeping device further comprises a running mechanism, which is installed at the bottom of the chamber 1 to realize the transfer and transportation of the fruit and vegetable refrigeration and fresh-keeping device.
  • the running mechanism is, for example, a structure such as tires, tracks, or rails that can realize the movement of the fruit and vegetable refrigeration and fresh-keeping device.
  • the first humidifying component 3 includes a wet film humidifier 31 and a fan 32.
  • the wet film humidifier 31 is configured to achieve humidification, and is connected to the water receiving tray 24 to use the water in the water receiving tray 24 for humidification.
  • the wet film humidifier 31 adopts an existing structure.
  • the principle of the wet film humidifier 31 is that water permeates downward along the wet film material under the action of gravity, and the water is absorbed by the wet film material to form a uniform water film. When dry air passes through the wet film material, the water molecules fully absorb the heat in the air and vaporize and evaporate, thereby increasing the humidity of the air and forming humidified air.
  • the fan 32 is arranged adjacent to the wet film humidifier 31 to transport the moisture in the wet film humidifier 31 to the storage area 12.
  • the fan 32 can specifically be a centrifugal fan.
  • the first humidifying component 3 has a large humidification capacity and a fast humidification speed, and can quickly replenish the humidity in the chamber 1.
  • the second humidifying assembly 4 includes a cooling fan 23 and a water receiving tray 24.
  • some components of the refrigeration assembly 2 are directly used as the second humidifying assembly 4, which is conducive to more fully utilizing the cooling fan 23 and the water receiving tray 24.
  • the air cooler 23 is a component that realizes the circulation of the refrigerant, and is also a component that realizes humidification.
  • the water receiving tray 24 is arranged below the air cooler 23 to receive the condensed water generated by the air cooler 23. During the operation of the air cooler 23, the condensed water in the water receiving tray 24 is taken away, and then the water is transported to the storage area 12 along with the air flow transported by the air cooler 23.
  • the fresh air humidification component 5 includes a fresh air outlet 51, a fresh air return outlet 52, a fresh air duct 53 and a door component (not shown).
  • the fresh air outlet 51 is arranged on the wall of the chamber 1; the fresh air return outlet 52 is arranged on the wall of the chamber 1; the fresh air duct 53 connects the fresh air outlet 51 and the fresh air return outlet 52; and the door component can be opened and closed at the fresh air outlet.
  • the fresh air outlet 51 and the fresh air return outlet 52 are located at different positions of the wall of the chamber 1.
  • the fresh air humidification component 5 does not need to be provided with a power source to accelerate the flow of airflow, and fresh air humidification can be achieved by utilizing natural airflow exchange.
  • a power source can also be provided to accelerate the flow speed of the fresh air.
  • the door component can specifically adopt structures such as electric doors and pneumatic doors, and the door component can be opened when fresh air humidification is needed and closed when fresh air humidification is not needed by electric or pneumatic means.
  • the fresh air humidification component 5 can be used alone, or can be used in combination with the first humidification component 3 and the second humidification component 4 mentioned above; it can be used only with the first humidification component 3 at the same time, can be used only with the second humidification component 4 at the same time, or the first humidification component 3, the second humidification component 4, and the fresh air humidification component 5 can be used at the same time.
  • the fruit and vegetable refrigeration and preservation device provided in some embodiments of the present disclosure has rich and flexible humidification methods, which can better meet the humidification needs of the chamber 1.
  • the target value of the humidity S of the chamber 1 is: Sk ⁇ S ⁇ St.
  • Sk is, for example, 80%
  • St is, for example, 95%.
  • Humidity S1 is also introduced in some embodiments below.
  • Humidity S1 is a set value, and its value is between Sk and St.
  • Different humidification strategies are implemented according to the interval in which the humidity S in the chamber 1 is located.
  • the interval in which the humidity S is located is: Sk ⁇ S ⁇ S1, S1 ⁇ S ⁇ St.
  • the technical solutions of some embodiments of the present disclosure also divide into multiple intervals, and the point values corresponding to two adjacent intervals are respectively S4, S3, and S2 from low to high.
  • the technical solutions of some embodiments of the present disclosure also divide into two intervals, and the dividing point of the two intervals is: S0. Among them, S4 ⁇ S3 ⁇ S2 ⁇ Sk ⁇ S1 ⁇ St ⁇ S0.
  • the value of S4 is, for example, 60%.
  • the value of S3 is, for example, 70%.
  • the value of S2 is, for example, 75%.
  • the value of Sk is, for example, 80%.
  • the value of S1 is, for example, 90%, and the value of St is, for example, 95%. 95% ⁇ S0 ⁇ 100%.
  • the set concentration C of carbon dioxide is: C2 ⁇ S ⁇ C1.
  • C2 is the lower limit of the set carbon dioxide concentration range, for example 3%.
  • C1 is the upper limit of the set carbon dioxide concentration range, for example 5%.
  • the set concentration C of carbon dioxide is also different. For fruits such as lychees, the above The numerical range is more appropriate.
  • FIG. 1 shows the working states of the first humidifying component 3, the second humidifying component 4, the fresh air humidifying component 5 and the refrigeration component 2 corresponding to each humidity range.
  • a check mark " ⁇ " represents opening
  • a cross "X” represents closing.
  • the opening and closing of the fresh air humidification component 5, the opening and closing of the first humidification component 3, and the opening and closing of the second humidification component 4 are defined in the following manner.
  • the fresh air humidification component 5 is open when the door component is open, and fresh air can enter the storage area 12 through the fresh air outlet 51.
  • the fresh air humidification component 5 is closed when the door component is closed, and the fresh air outlet 51 is blocked, so that fresh air cannot pass through the fresh air outlet 51.
  • the first humidifying component 3 is turned on, which means that the fan 32 is in a working state.
  • the first humidifying component 3 is turned off, which means that the fan 32 is in a non-working state, that is, a stopped state.
  • the second humidifying component 4 is turned on, which means that the cooling fan 23 is in a working state.
  • the second humidifying component 4 is turned off, which means that the cooling fan 23 is in a non-working state, that is, a stopped state.
  • the forced refrigeration mode in Table 1 means that the compressor of the refrigeration component 2 is turned on and operates at the maximum frequency.
  • the fresh air humidification component 5 directly uses natural air for humidification.
  • the fresh air humidification component 5 is constructed to be turned on according to the following conditions: the detected humidity S ⁇ S3 in the chamber 1, and the concentration of carbon dioxide C>C2; wherein, S4 ⁇ S3 ⁇ S2. Turning on the fresh air humidification component 5 can not only increase the humidity in the chamber 1, but also ventilate the gas in the chamber 1, so that the humidity in the chamber 1 is not It meets the metabolic requirements of fruits and vegetables, thereby inhibiting their metabolic phenomena and keeping them fresh.
  • the fresh air humidification component 5 is turned on when the following conditions are met: S3 ⁇ S ⁇ Sk, and C>C1.
  • the humidity in chamber 1 is relatively close to the lower limit of the set target range, and only a slight supplement of humidity is needed in chamber 1 to reach the target value.
  • the humidification effect of the fresh air humidification component 5 is not very obvious, but if the fresh air humidification component 5 is used together with other humidification components, it is beneficial to quickly adjust the humidity in chamber 1.
  • C>C1 it means that the fruits and vegetables in chamber 1 have produced a large amount of carbon dioxide, and the humidity in chamber 1 needs to be adjusted quickly. Therefore, when the following conditions are met at the same time: S3 ⁇ S ⁇ Sk, and C>C1, turning on the fresh air humidification component 5 is beneficial to quickly adjust the humidity in chamber 1, so that the humidity in chamber 1 reaches the set optimal range.
  • the start-up conditions of the first humidifying component 3 are described below.
  • the first humidifying component 3 is configured to be turned on according to the following condition: the detected humidity S in the chamber 1 ⁇ Sk; wherein Sk is a set lower limit value of the humidity in the chamber 1.
  • the first humidifying component 3 for example, uses a wet film humidifier 31 and a fan 32, which has a large humidification capacity and a fast humidification speed.
  • the first humidifying component 3 can add a large amount of water to the chamber 1, which is conducive to adjusting the humidity in the chamber 1 over a large range. As long as the humidity in the chamber 1 does not reach the lower limit Sk of the optimal setting range, regardless of the concentration of carbon dioxide in the chamber 1, the first humidifying component 3 is in the open state.
  • the humidity in the chamber 1 has reached the lower limit Sk of the optimal setting range, but is lower than S1 described above, it is determined whether the humidity in the chamber 1 needs to be increased according to the conditions of the production site. If necessary, the first humidifying component 3 is turned on. That is, if the humidity in the chamber 1 is Sk ⁇ S ⁇ S1, the first humidifying component 3 is also turned on; wherein Sk ⁇ S1. This adjustment can make the humidity in the chamber 1 reach the middle value of the set interval. Even if the humidity fluctuates to a certain extent, the humidity in the chamber 1 is still within the optimal setting range.
  • the start-up conditions of the second humidifying component 4 are described below.
  • the second humidification component 4 is configured to be turned on according to the following conditions: the humidity S detected in the chamber 1 satisfies the following relationship: S4 ⁇ S ⁇ S1; wherein S4 ⁇ S3 ⁇ S2 ⁇ Sk ⁇ S1 ⁇ St ⁇ S0.
  • Component 4 is humidified by the condensed water generated by the refrigeration component 2. Therefore, during the operation of the fruit and vegetable refrigeration and fresh-keeping device, as long as S4 ⁇ S ⁇ S1, the second humidification component 4 can be turned on to achieve self-humidification of the fruit and vegetable refrigeration and fresh-keeping device, reduce or even avoid water loss, and reduce the time-consuming, labor-intensive and cost-increasing phenomenon caused by adding water from the outside.
  • the humidity S1 ⁇ S ⁇ St in the chamber 1 it indicates that the humidity in the chamber 1 has reached the upper-middle value of the set range. If the humidity needs to be raised as close to St as possible, the second humidifying component 4 can be turned on.
  • the forced cooling mode means that the refrigeration component 2 works at the maximum frequency. In this mode, the temperature in the chamber 1 is quickly reduced. When the humidity in the chamber 1 is particularly high, turning on the forced cooling mode is conducive to quickly adjusting the humidity in the chamber 1 to the set range.
  • the refrigeration component 2 is configured to be turned on according to the following conditions: the detected humidity in the chamber 1 is S ⁇ S0; wherein S1 ⁇ St ⁇ S0, St is the lower limit value of the humidity in the chamber 1.
  • some embodiments of the present disclosure further provide a method for preserving fruits and vegetables, comprising the following steps:
  • Step S100 Determine the interval range of the detected humidity parameter.
  • Step S200 judging whether the first humidification component 3, the second humidification component 4 and the fresh air humidification component 5 are turned on according to the interval range of the detected humidity parameter.
  • the above article introduces the opening and closing conditions of each humidification component based on the humidification component itself.
  • the matching of each humidification component within each parameter range is introduced.
  • the fresh air humidification component 5 is turned off, the forced cooling mode is turned off, and the first humidification component 3 and the second humidification component 4 are turned on.
  • the first humidification component 3 and the second humidification component 4 are used to jointly increase the humidity in the chamber 1, the adjustment speed is relatively fast, and the condensed water generated by the refrigeration component 2 itself can be used, which is conducive to reducing energy consumption and reducing the demand for external water replenishment.
  • the second humidification component 4 when the humidity S ⁇ S4, C2 ⁇ C, the second humidification component 4 is turned off, the forced cooling mode is turned off, and the first humidification component 3 and the fresh air humidification component 5 are turned on.
  • the fresh air humidification component 5 and the first humidification component 3 are used to quickly increase the humidity in the chamber 1.
  • the adjustment speed is very fast, and the humidity in the chamber 1 can be quickly adjusted.
  • the fresh air humidification component 5 can introduce fresh air into the chamber 1, so it can ventilate the inside of the chamber 1 to reduce Carbon dioxide content.
  • the fresh air humidification component 5 is turned off, the forced cooling mode is turned off, and the first humidification component 3 and the second humidification component 4 are turned on.
  • the first humidification component 3 and the second humidification component 4 are used to jointly increase the humidity in the chamber 1, the adjustment speed is relatively fast, and the condensed water generated by the refrigeration component 2 itself can be used, which is conducive to reducing energy consumption and reducing the demand for external water replenishment.
  • the fresh air humidification component 5 is turned off, the forced cooling mode is turned off, and the first humidification component 3 and the second humidification component 4 are turned on.
  • the first humidification component 3 and the second humidification component 4 are used to increase the humidity in the chamber 1, the adjustment speed is relatively fast, and the condensed water generated by the refrigeration component 2 itself can be used, which is conducive to reducing energy consumption and reducing the demand for external water replenishment.
  • the fresh air humidification component 5 is turned off, the forced cooling mode is turned off, and the first humidification component 3 and the second humidification component 4 are turned on.
  • the first humidification component 3 and the second humidification component 4 are used to increase the humidity in the chamber 1, the adjustment speed is relatively fast, and the condensed water generated by the refrigeration component 2 itself can be used, which is conducive to reducing energy consumption and reducing the demand for external water replenishment.
  • the second humidifying component 4 When Sk ⁇ S ⁇ S1, the second humidifying component 4 is in the on state, and the fresh air humidifying component 5 and the forced cooling mode are both off. In this case, if the humidity in the chamber 1 needs to be increased, the first humidifying component 3 is turned on; otherwise, the first humidifying component 3 is turned off.
  • the humidity in chamber 1 is relatively high, the fresh air humidification component 5, the first humidification component 3, and the second humidification component 4 are all in a closed state, and there is no need to increase the humidity in chamber 1.
  • the setting value S0 therefore, does not need to use the forced cooling mode to lower the temperature in the chamber 1.
  • the above technical solution automatically detects and determines the humidity and gas concentration in the chamber 1.
  • the gas is naturally generated during the storage of fruits and vegetables, such as carbon dioxide.
  • the corresponding humidity control mode is automatically selected according to the humidity and carbon dioxide concentration, providing more suitable storage conditions for fruits and vegetables, ensuring that the fruits and vegetables in the chamber 1 are stored in an environment with optimal humidity.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

La présente divulgation se rapporte au domaine de la conservation de produits agricoles. L'invention concerne un dispositif de réfrigération et de conservation de fruits et légumes et un procédé de conservation de fruits et légumes, qui sont utilisés pour réguler plus efficacement l'humidité du dispositif de réfrigération et de conservation de fruits et légumes. Le dispositif de réfrigération et de conservation de fruits et légumes comprend une cavité, un ensemble de réfrigération, un premier ensemble d'humidification, un second ensemble d'humidification et un ensemble d'humidification d'air frais, la cavité étant conçue pour le stockage ; l'ensemble de réfrigération est monté à l'intérieur de la cavité et est conçu pour réfrigérer l'intérieur de la cavité ; le premier ensemble d'humidification est monté à l'intérieur de la cavité pour humidifier l'intérieur de la cavité ; le second ensemble d'humidification est monté à l'intérieur de la cavité pour humidifier l'intérieur de la cavité, le premier ensemble d'humidification et le second ensemble d'humidification ayant des principes d'humidification différents ; et l'ensemble d'humidification d'air frais est disposé à l'intérieur de la cavité et est conçu pour fournir de l'air frais dans la cavité, de façon à humidifier l'intérieur de la cavité. Selon la solution technique, la régulation de l'humidité est plus précise, flexible et rapide.
PCT/CN2023/141056 2023-06-21 2023-12-22 Dispositif de réfrigération et de conservation de fruits et légumes et procédé de conservation de fruits et légumes Ceased WO2024259931A1 (fr)

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CN116772497A (zh) * 2023-06-21 2023-09-19 珠海格力电器股份有限公司 果蔬制冷保鲜装置以及果蔬保鲜方法

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