WO2020220448A1 - Appareil de maintien de la fraîcheur à une super température de glace et son procédé de commande - Google Patents

Appareil de maintien de la fraîcheur à une super température de glace et son procédé de commande Download PDF

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Publication number
WO2020220448A1
WO2020220448A1 PCT/CN2019/092662 CN2019092662W WO2020220448A1 WO 2020220448 A1 WO2020220448 A1 WO 2020220448A1 CN 2019092662 W CN2019092662 W CN 2019092662W WO 2020220448 A1 WO2020220448 A1 WO 2020220448A1
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WO
WIPO (PCT)
Prior art keywords
cavity
temperature
ice
air circulation
ice slurry
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Application number
PCT/CN2019/092662
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English (en)
Chinese (zh)
Inventor
董凯军
张博博
孙钦
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中国科学院广州能源研究所
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Application filed by 中国科学院广州能源研究所 filed Critical 中国科学院广州能源研究所
Publication of WO2020220448A1 publication Critical patent/WO2020220448A1/fr

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    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Definitions

  • the invention relates to food storage and fresh-keeping technology, in particular to an ultra-ice temperature fresh-keeping device and a control method thereof.
  • the ultra-ice temperature technology is based on the ice temperature technology, which stores the food below the freezing point and above the destruction point. Compared with the traditional -18°C freezing preservation, the original structure and flavor of the food is guaranteed. Compared with the ice temperature technology, it can effectively extend the storage period of the food. It is the future development direction of high-quality food preservation technology.
  • the current ultra-ice temperature technology mostly uses air-cooled cyclic temperature control.
  • This type of temperature-controlled refrigeration equipment requires regular defrosting treatment, which leads to large fluctuations in indoor temperature, and food under ultra-ice temperature is greatly affected by temperature. , The stability is poor. Under large temperature fluctuations, it is easy to reach the food destruction point and freeze, resulting in unnecessary cell tissue fluid outflow, affecting the delicious food.
  • most of the existing refrigeration equipment such as household refrigerators, refrigerated trucks, and cold storages, remain in the stage of traditional freezers, and their own temperature control adjustment methods cannot meet the temperature range control requirements of the ultra-ice temperature technology.
  • the present invention provides an ultra-ice temperature preservation device and a control method thereof to realize the application of ultra-ice temperature technology in traditional freezing equipment, and realize precise temperature control of food through the constant temperature technology of ice slurry extraction .
  • An ultra-ice temperature preservation device comprising a main body and a cover plate.
  • the main body includes an air circulation cavity, an ice slurry cavity and a food storage cavity. One side of the food storage cavity is opened.
  • the ice slurry cavity covers the outside of the food storage cavity and the air circulates.
  • the cavity covers the outside of the ice slurry cavity, and the cover plate is sealed and connected to the main body by opening and closing the food storage cavity.
  • the ice slurry cavity is filled with freezing point regulator, and the air circulation cavity is cooled by cold air supplied by the supporting refrigeration equipment. .
  • the ice slurry cavity is a multi-sandwich cavity structure arranged in order from the inside to the outside, and the sandwich cavities are not connected, and different sandwich cavities are filled with different concentrations of freezing point regulator, and the concentration is from the inside Decrease in order to the outside.
  • the multi-sandwich cavity structure can realize the preparation of multi-concentration freezing point regulator aqueous solution, and realize the storage temperature selection of multiple super-ice temperature in the sandwich cavity
  • the cover plate is also a multi-sandwich cavity structure arranged in order from the inside to the outside, and the interlayer cavities are not connected, and the number of the interlayer cavities and the freezing point regulator filled in each interlayer cavity are The ice slurry cavity corresponds to the same.
  • foam metal materials or fins are arranged in each of the interlayer cavities. Filling with foamed metal material or setting fins can enhance heat exchange.
  • the air circulation cavity is provided with at least two vent holes, each vent hole is provided with a fan, and the air circulation cavity is provided with an enhanced heat exchange structure.
  • the enhanced heat exchange structure can strengthen the connection between the air circulation cavity and the ice slurry cavity, and can also enhance the heat exchange, so that the cold air entering the air cavity can better heat exchange with the ice slurry cavity, and realize the rapid and uniform cooling of the ice slurry cavity.
  • the air circulation cavity is provided with a vertical partition and a plurality of horizontal partitions. On both sides of the vertical partition, an inlet flute tube and an outlet flute tube are respectively provided, and a plurality of horizontal partitions are provided.
  • the horizontal air circulation chambers formed by the plates are not connected.
  • the outer surfaces of the main body and the cover plate are both wrapped with thermal insulation materials.
  • the whole device is wrapped with thermal insulation material and is thermally isolated from the outside, so that the device can be flexibly placed.
  • the user sets the super-ice temperature storage temperature T super-ice temperature ;
  • the super-ice temperature storage temperature set by the user can be selected and set among multiple freezing point temperatures corresponding to multiple sandwich cavities according to the type of food stored.
  • the ⁇ t is the temperature hysteresis, and its range is 0.1-0.3°C.
  • the multi-sandwich cavity structure can realize the preparation of multi-concentration freezing point regulator aqueous solution and realize the selection of multiple super-ice temperature storage temperature in the sandwich cavity.
  • Figure 1 is a schematic diagram of the structure of the ultra-ice temperature preservation device of the first embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of the ice slurry cavity in the first embodiment of the present invention
  • FIG. 3 is a schematic diagram of the structure of the cover plate of the first embodiment of the present invention.
  • Figure 4 is a flow chart of the control method of the ultra-ice temperature preservation device of the present invention.
  • FIG. 5 is a schematic diagram of the structure of the ultra-ice temperature preservation device of the second embodiment of the present invention.
  • Figure 6 is a partial schematic view of the flute tube in Figure 5;
  • the ultra-ice temperature preservation device of this embodiment includes a main body and a cover plate 2.
  • the main body includes an air circulation cavity 11, an ice slurry cavity 12 and a food storage cavity 13.
  • the food storage cavity 13 is a rectangular cavity with an opening on one side, and is used for storing foods that need to be stored at an ultra-ice temperature.
  • Both the ice slurry cavity 12 and the air circulation cavity 11 are closed rectangular cavities.
  • the ice slurry cavity 12 is provided with recesses for the food storage cavity 13 to be embedded, and the air circulation cavity 11 is provided with recesses for the ice slurry cavity 12 to be embedded, and the three are fixed. Later, the opening side is flush to form a rectangular body.
  • the cover plate 2 is hermetically connected to the side of the main body with an opening in a hinged or snapped manner, and is used to open or close the food storage cavity 13.
  • the specific structure can refer to the design of the refrigerator door.
  • Both the cover plate 2 and the outer surface of the air circulation cavity 11 are wrapped with heat preservation material, and the No. 1 vent hole 151 and the No. 2 vent hole 152 are respectively opened on two opposite sides of the air circulation cavity 11.
  • the No. 1 fan 141 is installed in the No. 1 vent hole 151
  • the No. 2 fan 142 is installed in the No. 2 vent hole 152.
  • the punch positions of the No. 1 vent hole 151 and the No. 2 vent hole 152 in the air circulation chamber 11 are shown in the figure.
  • the No. 1 fan 141 and the No. 2 fan 142 work alternately when placed at the corners of both sides near the top surface.
  • the ultra-ice temperature preservation device is equipped with refrigeration equipment. The installation gap between the two is greater than 5cm.
  • the refrigeration equipment provides cold air for refrigeration. It can be connected to the air circulation cavity 11 through a pipe or air chamber to form a refrigeration circuit. In this way, the air circulation cavity 11 is outside Under the suction of the working fan, the cold air enters the air circulation chamber 11 and is finally discharged from the vent of the non-working fan to complete the entire heat exchange process.
  • the air circulation cavity 11 is equipped with fins and other enhanced heat exchange structures, which can not only strengthen the connection between the air circulation cavity 11 and the ice slurry cavity 12, but also enhance the heat exchange, so that the cold air entering the air circulation cavity 11 better matches the ice
  • the heat exchange inside the slurry cavity 12 realizes the rapid and uniform temperature drop inside the ice slurry cavity 12.
  • No. 1 vent hole 151 and No. 2 vent hole 152 are provided with sliding doors wrapped with thermal insulation materials.
  • the sliding doors can be automatically opened or closed by the controller.
  • the No. 1 fan 141 and the No. 2 fan 142 are not working.
  • the sliding door is closed so that there is no heat exchange between the device and the outside world.
  • the ice slurry cavity 12 contains an aqueous solution of a freezing point regulator and a foamed metal material.
  • the foamed metal material increases the thermal conductivity of the solution in the ice slurry cavity 12 so as to achieve uniform cooling in the ice slurry cavity 12.
  • Foamed metal materials can also be replaced by heat sink fins.
  • the ice slurry cavity 12 in this embodiment adopts the interlayer form as shown in the figure: the first interlayer cavity 121, the second interlayer cavity 122, and the third interlayer cavity 123 are sequentially arranged from the outside to the inside.
  • the cover plate 2 in this embodiment adopts the sandwich form shown in the figure: No. 4 cover plate sandwich cavity 21, No. 5 cover plate sandwich cavity 22, and No. 6 cover plate sandwich cavity 23 are arranged in sequence from the outside to the inside.
  • the purpose of designing multiple interlayer cavities is to prepare different concentrations of freezing point regulator aqueous solutions in different interlayer cavities, so as to achieve multiple freezing point temperatures. According to the type of food stored, it can be selected as the ultra-ice temperature storage temperature. A variety of different foods can be kept fresh at super ice temperature.
  • the interlayer cavities of the ice slurry cavity 12 and the interlayer cavities of the cover plate 2 are equipped with foamed metal materials, and the concentration of the freezing point regulator in each interlayer cavity of the ice slurry cavity 12 decreases from the inside to the outside.
  • the concentration of the freezing point regulator in each sandwich cavity of the cover plate 2 decreases from the inside to the outside, and corresponds to the same as the concentration of the ice slurry cavity 12 from the inside to the outside.
  • T -36.97*(concentration ) 2 -57.28*(concentration)+0.1037.
  • the figure only illustrates the structure of the ice slurry cavity interlayer cavity and the cover interlayer cavity.
  • the present invention does not limit the number of interlayer cavities, and can be customized according to actual needs.
  • the present invention also provides a control method of the ultra-ice temperature preservation device, as shown in FIG. 4, including the following steps:
  • Step S1 the user sets the super-ice temperature storage temperature T super-ice temperature ;
  • the ice slurry cavity 12 contains multiple interlayer cavities, different interlayer cavities are filled with aqueous solutions with freezing point regulator concentration from high to bottom from the inside to the outside.
  • the ultra-ice temperature preservation device can be selected by the user as -1.9°C, -2.8°C, -6°C, that is, users can choose to set the super-ice storage temperature according to food needs.
  • Step S2 Obtain the ice slurry corresponding to the temperature T of the interlayer cavity
  • the present invention can obtain the ice slurry temperature in each interlayer cavity by arranging temperature sensors inside each interlayer cavity. According to the value of the super-ice temperature storage temperature set by the user, it corresponds to the concentration of the aqueous solution in the interlayer through the interlayer temperature sensor Obtain the temperature of the solution in the sandwich cavity.
  • Step S3 When the temperature of the interlayer cavity T ice slurry is higher than the user-set temperature T super ice temperature + ⁇ t, go to step S4;
  • Step S4 the fans shown in this embodiment work alternately
  • Step S5 When the interlayer cavity temperature T ice slurry is lower than the user-set temperature T super ice temperature - ⁇ t, go to step S6;
  • Step S6 The fan shown in this embodiment stops working.
  • the present invention adopts a hysteresis control method for the super-ice temperature storage temperature control, where the hysteresis value ⁇ t can refer to 0.1-0.3°C.
  • This has the advantage of effectively controlling the interlayer cavity ice slurry temperature at the super-ice temperature storage temperature set by the user Near (the fluctuation range of ⁇ t).
  • the selected interlayer cavity temperature T ice slurry is higher than the user set temperature T ultra ice temperature + ⁇ t, it means that the temperature of the interlayer cavity has not reached the user set temperature at this time, and the solution in the interlayer cavity is in a liquid state and needs to be opened continuously.
  • the fan sends the cold air outside the ultra-ice temperature device into the air circulation cavity 11 for cooling.
  • the fan used to cool the interlayer cavity can be turned off, and the entire super ice temperature
  • the fresh-keeping device enters the heat preservation state.
  • the fan will restart to work until it detects that the temperature of the interlayer cavity T ice slurry is higher than the user set temperature T super ice temperature + ⁇ t.
  • the ice-water mixing state for a period of time can accurately control the temperature at the super-ice temperature storage temperature set by the user.
  • an ultra-ice temperature preservation device is different from Embodiment 1 in the following: the structure of the air circulation cavity 11 and the air intake mode.
  • the ultra-ice temperature preservation device is cylindrical, and a plurality of horizontal partitions 171 and a vertical partition 172 are provided in the air circulation cavity 11.
  • the two sides of the vertical partition 172 are respectively provided with an air inlet flute tube 161 and an air outlet flute tube 162, and the flute holes on the two tubes for air inlet or outlet face oppositely.
  • the purpose of the vertical partition 172 is to make the inlet flute tube 161 and the outlet flute tube 162 only communicate in one direction. If the outer wall of the flute tube directly contacts the inner wall of the air circulation chamber 11, the vertical partition can also be removed 172.
  • each horizontal air circulation cavity corresponds to at least one flute hole.
  • the cold air outside the device enters the intake flute 161 from the flute inlet 181, and then enters the air circulation cavity 11 through a number of outlet holes (flute holes) distributed on the inlet flute 161. After the heat is exchanged along the inner circumference, it is discharged from the outlet flute tube 162.
  • the fan device for driving the movement of cold air is not shown, and it can be designed according to actual conditions.

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

La présente invention concerne un appareil de maintien de la fraîcheur à une super température de glace et son procédé de commande. Un réfrigérateur comprend un corps principal et une plaque de couverture ; le corps principal comprend une cavité de circulation d'air, une cavité de coulis de glace et une cavité de stockage d'aliments ; un côté de la cavité de stockage d'aliments est ouvert ; la cavité de coulis de glace recouvre le côté externe de la cavité de stockage d'aliments ; la cavité de circulation d'air recouvre le côté externe de la cavité de coulis de glace ; la plaque de couverture est reliée de manière étanche au corps principal d'une manière à ouvrir et à fermer la cavité de stockage d'aliments ; la cavité de coulis de glace est remplie d'un agent de conditionnement de point de congélation ; la cavité de circulation d'air réfrigère la cavité de coulis de glace au moyen de l'air froid fourni par un dispositif de réfrigération adapté. La caractéristique selon laquelle l'agent de conditionnement de point de congélation absorbe la chaleur pour changer une phase sans changer la température de l'agent de conditionnement de point de congélation est utilisée pour maintenir une température constante de la cavité de stockage d'aliments, de telle sorte que la fluctuation de température est faible, la précision de commande est élevée, et le stockage à une super température de glace de produits frais est facilement obtenu.
PCT/CN2019/092662 2019-04-29 2019-06-25 Appareil de maintien de la fraîcheur à une super température de glace et son procédé de commande WO2020220448A1 (fr)

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CN201910356854.6A CN110131943B (zh) 2019-04-29 2019-04-29 一种超冰温保鲜装置及其控制方法
CN201910356854.6 2019-04-29

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111426116A (zh) * 2020-04-13 2020-07-17 珠海格力电器股份有限公司 保鲜效果高的保鲜装置及其控制方法
CN112205563A (zh) * 2020-09-28 2021-01-12 中国科学院广州能源研究所 一种超冰温速冻食品保鲜方法
CN113951314B (zh) * 2021-09-30 2024-06-07 浙江工业大学 一种近海渔获物保鲜系统及应用
CN117109223B (zh) * 2023-10-25 2023-12-22 贵州健易测科技有限公司 一种农产品冷藏温湿度调控装置及温湿度调控方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062975A (zh) * 2012-12-29 2013-04-24 合肥华凌股份有限公司 冰箱
CN106440630A (zh) * 2016-08-30 2017-02-22 大连冷冻机股份有限公司 充冷式冰温冷库
CN106578841A (zh) * 2016-11-28 2017-04-26 珠海格力电器股份有限公司 一种冰温保鲜方法和装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2146184Y (zh) * 1992-09-15 1993-11-17 潘天健 冷热两用保健枕
US7257963B2 (en) * 2003-05-19 2007-08-21 Minnesota Thermal Science, Llc Thermal insert for container having a passive controlled temperature interior
KR100715779B1 (ko) * 2006-05-19 2007-05-08 한국식품연구원 저온 냉각수 제조장치
CN101785723A (zh) * 2010-03-19 2010-07-28 陈伟强 一种冰垫
KR20130024678A (ko) * 2011-08-31 2013-03-08 김명원 얼음이 둘러싸여지게 된 냉동고
CN102374753A (zh) * 2011-09-30 2012-03-14 合肥美的荣事达电冰箱有限公司 一种风冷冰箱的制冷控制方法
CN203375785U (zh) * 2013-06-06 2014-01-01 周银春 一种冰镇容器
KR20180092997A (ko) * 2015-11-19 2018-08-20 블랑테크 가부시키가이샤 보냉고, 이동체, 얼음 슬러리 공급 시스템, 피 보냉품 수송 시스템, 피 보냉품의 보냉 방법 및 피 보냉품의 수송 방법
CN205593247U (zh) * 2016-05-04 2016-09-21 陶超杰 一种便携式食物保鲜箱
CN105890254B (zh) * 2016-05-05 2018-06-19 上海理工大学 冷藏运输箱
JP2019024488A (ja) * 2017-07-25 2019-02-21 株式会社ケンスイ 冷凍牡蠣の製造方法
CN208170767U (zh) * 2017-10-19 2018-11-30 全球能源互联网欧洲研究院 一种储热装置及储热系统
CN207482567U (zh) * 2017-11-08 2018-06-12 山西明佳电子技术有限公司 一种药品冷链保温箱
CN107917575B (zh) * 2017-11-16 2020-02-28 合肥华凌股份有限公司 解冻装置和具有其的冰箱
CN108967509B (zh) * 2018-08-02 2022-01-25 上海海洋大学 一种拓宽生鲜食品冰温带的方法
CN109275703A (zh) * 2018-09-25 2019-01-29 温州科技职业学院 流化冰预冷结合生物冰温的保鲜方法
CN109479949A (zh) * 2018-11-22 2019-03-19 李爱芳 生鲜水产品保鲜方法及设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062975A (zh) * 2012-12-29 2013-04-24 合肥华凌股份有限公司 冰箱
CN106440630A (zh) * 2016-08-30 2017-02-22 大连冷冻机股份有限公司 充冷式冰温冷库
CN106578841A (zh) * 2016-11-28 2017-04-26 珠海格力电器股份有限公司 一种冰温保鲜方法和装置

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