WO2010044498A2 - Appareil de surfusion - Google Patents

Appareil de surfusion Download PDF

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Publication number
WO2010044498A2
WO2010044498A2 PCT/KR2008/006171 KR2008006171W WO2010044498A2 WO 2010044498 A2 WO2010044498 A2 WO 2010044498A2 KR 2008006171 W KR2008006171 W KR 2008006171W WO 2010044498 A2 WO2010044498 A2 WO 2010044498A2
Authority
WO
WIPO (PCT)
Prior art keywords
water
supercooling
container
water container
flow passage
Prior art date
Application number
PCT/KR2008/006171
Other languages
English (en)
Other versions
WO2010044498A3 (fr
Inventor
Su-Cheong Kim
Jong-Min Shin
Deok-Hyun Youn
Jae-Hyun Soh
Cheol-Hwan Kim
Won-Young Chung
Hoon-Bong Lee
Original Assignee
Lg Electronics, Inc.
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 Lg Electronics, Inc. filed Critical Lg Electronics, Inc.
Priority to PCT/KR2008/006171 priority Critical patent/WO2010044498A2/fr
Publication of WO2010044498A2 publication Critical patent/WO2010044498A2/fr
Publication of WO2010044498A3 publication Critical patent/WO2010044498A3/fr

Links

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
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • F25D23/126—Water cooler
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2301/00—Special arrangements or features for producing ice
    • F25C2301/002—Producing ice slurries
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/02—Refrigerators including a heater

Definitions

  • the present invention relates to an apparatus for supercooling, and more particularly, to an apparatus for supercooling which stores water in supercooled state in a water container provided in the supercooling apparatus so that a user can take the water in the supercooled state.
  • This technology uses supercooling.
  • Supercooling means that a molten object or a solid cooled below a phase transition temperature in a balanced state is not changed.
  • FIG. 1 is a view illustrating an embodiment of a conventional apparatus for thawing and freshness keeping.
  • a cooling box 1 includes an insulation 2 and an outer wall 5.
  • a temperature control device (not shown) is installed in the cooling box 1.
  • a metal shelf 7 installed in the cooling box 1 has a two layer structure. Vegetables, meats or marine products are mounted on each layer for thawing, freshness keeping or ripening.
  • the metal shelf 7 is isolated from the bottom of the cooling box 1 by insulators 9.
  • a high voltage generating device 3 can generate 0 to 5000V of DC and AC voltages.
  • the inner surface of the insulation 2 is covered with an insulating plate 2a such as vinyl chloride.
  • a high voltage cable 4 for outputting the voltage of the high voltage generating device 3 accesses the metal shelf 7 through the outer wall 5 and the insulation 2.
  • a safety switch 13 (refer to Fig. 2) is turned off to block the output of the high voltage generating device 3.
  • Fig. 2 is a circuit view illustrating the circuit configuration of the high voltage generating device 3.
  • 100V of AC is supplied to a primary side of a voltage adjusting transformer 15.
  • Reference numeral 11 denotes a power lamp and 19 denotes an operation state lamp.
  • a relay 14 is operated.
  • the operation of the relay 14 is displayed by a relay operation lamp 12.
  • Relay contact points 14a, 14b, and 14c are closed by the operation of the relay 14, and 100V of AC is applied to the primary side of the voltage adjusting transformer 15.
  • the applied voltage is adjusted by an adjusting knob 15a at a secondary side of the voltage adjusting transformer 15.
  • the adjusted voltage is displayed on a voltmeter.
  • the adjusting knob 15a is connected to a primary side of a boosting transformer 17 at the secondary side of the voltage adjusting transformer 15.
  • the boosting transformer 17 boosts a voltage at a rate of 1 :50. For example, when 60V of voltage is applied, it is boosted to 3000V.
  • One end O of the secondary side output of the boosting transformer 17 is connected to the metal shelf 7 isolated from the cooling box 1 through the high voltage cable 4, and the other end O of the output is earthed. Since the outer wall 5 is earthed, if the user contacts the outer wall 5 of the cooling box 1 , he/she does not receive an electric shock. In Fig. 1, the metal shelf 7 exposed in the cooling box 1 mist be maintained in an insulated state. It is thus necessary to separate the metal shelf 7 from the walls of the cooling box 1 (the air performs insulation). If the contents 8 mounted on the metal shelf 7 contact the walls of the cooling box 1, the current flows to the ground through the walls of the cooling box 1. Drop of the applied voltage is prevented by adhering the insulating plate 2a to the inner walls. When the metal shelf 7 is not exposed but covered with vinyl chloride, an electric field atmosphere is made in the whole cooling box 1.
  • An object of the present invention is to provide an apparatus for supercooling which is provided with a water container for storing water in a supercooled state.
  • Another object of the present invention is to provide an apparatus for supercooling which is provided with a supercooled water dispenser capable of taking out water to the outside of a door of the supercooling apparatus.
  • Yet another object of the present invention is to provide an apparatus for supercooling which can provide supercooled water, whose phase is converted into a slush state when a user takes out water through the dispenser.
  • an apparatus for supercooling comprising: a water container positioned in a space maintained at a temperature below 0 0 C, for storing water; a heating device positioned at an upper part of the water container; and an outlet positioned at a lower part of the water container.
  • the apparatus for supercooling further comprises a door for opening and closing the space maintained at a temperature below 0 0 C, the water container being installed at the door.
  • the apparatus for supercooling further comprises: a water intake opening positioned outside of the door; and a water intake flow passage connecting the water intake opening and the outlet.
  • the apparatus for supercooling further comprises a water inlet pipe for introducing water to the water container.
  • a water inlet pipe for introducing water to the water container.
  • one end of the water inlet pipe is positioned at a lower part of the water container.
  • the water intake flow passage is positioned over below-zero and above-zero temperature regions. By this configuration, it is possible to prevent the supercooled water remaining in the water intake flow passage from being frozen.
  • the portion positioned in the above- zero temperature region of the water intake flow passage includes a portion positioned inside the door.
  • an apparatus for supercooling comprising: a cooling chamber for providing cool air; a water container for storing water; a water inlet pipe inserted into the water container, for introducing water to the water container from the outside; a heating device positioned at an upper part of the water container; a pneumatic valve positioned at an upper part of the water container; an outlet positioned at a lower part of the water container; and a water intake flow passage for discharging water outside of the cooling chamber from the outlet.
  • the pneumatic valve is positioned at a side of the water container.
  • the heating device is positioned inside the water container.
  • the heating device is covered by an insulator.
  • one end of the water intake flow passage is positioned outside of the supercooling chamber.
  • the apparatus for supercooling further comprises a valve connected to one end of the water intake flow passage, and opening and closing the water intake flow passage.
  • the valve may be a lever for opening and closing the water intake flow passage, and supercooled water can be conveniently taken out because the user can open the water intake flow passage while holding a cup to the lever.
  • the valve is a mechanical valve positioned outside of the supercooling chamber.
  • the water intake flow passage is bent downward from a portion higher than the outlet.
  • one end of the water inlet pipe is positioned at a lower part of the water container.
  • the apparatus for supercooling allows the user to take out supercooled water and use the water in a slush state by having a water container for storing water in a supercooled state,
  • the apparatus for supercooling according to the present invention can prevent freezing of water because a portion where the surface of the water forming ice crystals is positioned exists in an ambient temperature region.
  • the apparatus for supercooling allows the user to easily take out supercooled water from the supercooling apparatus because one end of the water intake flow passage of supercooled water, that is, the water intake opening, exists outside of the supercooling apparatus.
  • the apparatus for supercooling according to the present invention can prevent the supercooled water remaining in the water intake flow passage from being frozen because the water intake flow passage is positioned over above-zero and below- zero temperature regions.
  • FIG. 1 is a view illustrating an embodiment of a conventional apparatus for thawing and freshness keeping
  • FIG. 2 is a circuit view illustrating the circuit configuration of the high voltage generating device
  • FIG. 3 is a view showing a process of forming freezing nuclei in a liquid being cooled
  • FIG. 4 is a view showing a process of preventing formation of freezing nuclei applied to the apparatus for supercooling according to the present invention
  • Fig. 5 is a graph showing a supercooled state of water according to Fig. 4;
  • FIG. 6 is a view illustrating an apparatus for supercooling according to a first embodiment of the present invention.
  • Fig. 7 is a view illustrating one example of a supercooled water dispenser provided in the apparatus for supercooling according to the first embodiment of the present invention.
  • FIG. 3 is a view showing a process of forming freezing nuclei in a liquid being cooled. As shown in Fig. 3, a container C accommodating a liquid is cooled in a cooling space S.
  • a cooling temperature of the cooling space S is cooled, for example, from an ambient temperature down to 0 0 C (phase transition temperature of water) or below a phase transition temperature of the liquid L.
  • a supercooled state of water or liquid L is maintained, for example, below a temperature (-1 to -5°C) of the maximum ice crystal generation zone of water in which a maximum amount of ice crystals is generated or at a cooling temperature below the maximum ice crystal generation zone of liquid L.
  • the container C may selectively comprise a lid Ck, and if included, this can prevent direct introduction of cool air of a cooling space or prevent the temperature of the surface of the liquid L or the temperature of the gas Lg above the surface from being cooled by cool air to a certain extent.
  • freezing nuclei Fl are formed in the gas Lg or freezing nuclei F2 are formed on the inner wall of the container C.
  • condensation occurs at a portion where the surface Ls of the liquid L and the inner wall (almost matching to the cooling temperature of the cooling space S), and this condensed liquid L may be formed as freezing nuclei F3 which are ice crystals.
  • the freezing nuclei Fl in the gas Lg descend and permeate the liquid L through the surface Ls, the supercooled state of the liquid L is released to cause freezing of the liquid L, thereby releasing the supercooling of the liquid L.
  • FIG. 4 is a view showing a process of preventing formation of freezing nuclei applied to the apparatus for supercooling according to the present invention.
  • the temperature on the surface Ls of the gas Lg or liquid L is higher than the temperature of the maximum ice crystal generation zone of the liquid L, more preferably, the phase transition temperature of the liquid L. Further, in order to prevent freezing when the surface Ls of the liquid L is brought in contact with the inner wall of the container C, the temperature of the surface Ls of the liquid L is higher than the temperature of the maximum ice crystal generation zone of the liquid L, more preferably, the phase transition temperature of the liquid L.
  • the liquid L in the container C maintains a supercooled state at a temperature below the phase transition temperature or below the maximum ice crystal generation zone of the liquid L.
  • Fig. 5 is a graph showing a supercooled state of water according to Fig. 4.
  • the graph of Fig. 5 is a temperature graph measured in a state the principle according to Fig. 4 is applied when the liquid L is water.
  • line I denotes a cooling temperature curve of the cooling space S
  • line II denotes a temperature curve of the gas Lg (air) above or on the water surface in the container C
  • line III denotes a temperature of the outer surface of the container C.
  • the temperature of the outer surface of the container C is substantially the same as the temperature of the water in the container C.
  • FIG. 6 is a view illustrating an apparatus for supercooling according to a first embodiment of the present invention.
  • the supercooling apparatus 1000 comprises a casing 1200 constituting the outer appearance and a cooling chamber 1100 maintained at a temperature below 0 0 C in the casing 1200.
  • the casing 1200 includes a main body 1210 and a door 1220, and the casing 1200 is provided with a layer foamed with an insulating material, for thermally insulating the cooling chamber 1100 from the outside.
  • the door 1220 is provided with a water container 1300 for storing supercooled water.
  • the water container 1300 is formed so as to be exposed to cool air of the cooling chamber 1100.
  • the water stored in the water container 1300 is stored at a temperature below 0 0 C.
  • a water inlet pipe(1400) for introducing water to the water container from an external water supply source is connected at the water container(1300), and a valve 1410 for controlling inflow of water is installed at the water inlet pipe.
  • a heating device 1310 for thawing ice nuclei formed in the upper part of the water container 1300 is provided.
  • the heating device 1310 is installed at an upper part of the water container 1300, and may be installed inside or outside the water container 1300. However, it is preferred that the heating device 1310 is installed inside the water container 1300 in consideration of aesthetic appearance upon opening the door 1220 or the safety in use.
  • a general heater, a heating wire, or the like can be used. In case of using a device generating heat by electricity, it is preferred that the heater 1310 is installed, insulated by an insulator.
  • the lower part of the water container 1300 is connected to a water intake flow passage 1330 connecting to a water intake opening 1350 so as to take out the supercooled water stored in the water container to the outside of the door 1220.
  • the water intake flow passage 1330 is connected to the water intake opening 1350 via the insulating material-foamed layer of the door 1220.
  • a pneunatic valve 1370 for controlling the discharge of the supercooled water thr ⁇ gh the water intake flow passage 1330 is installed at the upper part of the water container 1300.
  • a lever 1360 for allowing the user to control the discharge of the supercooled water is installed around the water intake opening 1350.
  • the lever 1360 and the pneunatic valve 1370 are designed to operate in mechanical or electronic conjunction with each other, whereby the pneunatic valve 1370 is adapted to be opened when the user attempts to take out the supercooled water by pushing the lever 1360.
  • Fig. 7 is a view illustrating one example of a supercooled water dispenser provided in the apparatus for supercooling according to the first embodiment of the present invention.
  • the water container 1300 is exposed to cool air of the supercooling chamber 1100 (shown in Fig. 6).
  • a water inlet pipe 1400 is connected to the water container 1300, and the water inlet pipe 1400 is provided with a valve 1410 for controlling inflow of water through the water inlet pipe 1400.
  • One end of the water inlet pipe 1400 is connected to a water supply source, and the other end is connected to the water container 1300.
  • the other end of the water inlet pipe 1400 is connected to the lower part of the water container 1300, or inserted into the water container 1300 and positioned at a lower side of the water container 1300.
  • This is to prevent an impact caused by the head of water from being applied to the supercooled water to freeze the supercooled water when water is introduced into the water container 1300 thr ⁇ gh the water inlet pipe 1400.
  • the valve 1410 is designed to operate in conjunction with the aforementioned lever 1360 and pneunatic valve 1340, or a water level sensor (not shown) is provided in the water container and controlled by a control unit (not shown) so as to maintain a predetermined water level.
  • the upper part of the water container 1300 has an environment in which ice crystals are easily formed as described above.
  • the upper part of the water container 1300 is provided with a heating device 1310.
  • an outlet 1320 for discharging supercooled water to the outside is formed at the lower part of the water container 1300.
  • the outlet 1320 is connected to the water intake flow passage 1330, and the other end of the water intake flow passage 1330 is connected to the water intake opening 1350 positioned outside of the supercooling apparatus.
  • a member for allowing the user to select the intake or not of the supercooled water generally, a lever 1360, is installed near the water intake opening 1350.
  • the water intake flow passage 1330 is opened to discharge the supercooled water to a cup by the user's pushing the lever 1360 while holding a cup to the lever 1360, and the supercooled water is converted into a slush state by the head of water.
  • a pneimatic valve 1340 is installed at the upper part of the water container 1300.
  • the pneimatic valve 1340 has the merit that ice crystals are not easily formed compared to a metal valve.
  • the pneimatic valve 1340 is installed in a horizontal direction in the upper part of the water container 1300 in order to eliminate the factor of disturbing the supercooling safety of the supercooled water caused by the pneimatic valve 1340 as much as possible.
  • the pneimatic valve 1340 is designed to operate in conjunction with the lever 1360 or controlled.
  • the water intake flow passage 1330 is connected to the outside of the supercooling apparatus via the insulating material of the door 1220.
  • the outside of the door 1220 that is, the outside of the supercooling apparatus, has an ambient temperature
  • the supercooling chamber 1100 where the water container 1300 is positioned has a temperature below 0 0 C. Therefore, the insulating material has a linear temperature distribution so that the outer surface side of the door 1220 has an ambient temperature and the inner surface side of the door 1220 has a temperature below 0°C.
  • the water intake flow passage 1330 is positioned over below-zero to ambient temperature regions.
  • the shape and length of the water intake flow passage 1330 are selected so that the surface of the water remaining in the water intake flow passage 1330 is positioned in a temperature region higher than a temperature of the maxirr ⁇ m ice crystal generation zone, thereby preventing freezing of the water remaining in the water intake flow passage 1330.
  • the water stored in the water container 1300 and the water intake flow passage 1330 can be stored in a supercooled state, and taken out and used in a slush state when the user wants.
  • the supercooling apparatus it is preferred for the supercooling apparatus to maintain the water in the water container 1300 below a temperature (-1—5 degrees) of the maximum ice crystal generation zone in order to provide slush more stably. Accordingly, it is preferred for the supercooling apparatus to iiirther comprise a temperature sensor (not shown) for measuring a temperature in the water container 1300 and a control unit (not shown) for controlling the heating value of the heating device 1310 by receiving information transmitted from the temperature sensor (not shown).
  • the temperature of the water in the water container 1300 should be lowered to below a temperature of the maximum ice crystal generation zone so as to provide slush again. Therefore, hereupon, it is preferred to lower the temperature of the water within a short time by turning off the heating device 1310 or decreasing the heating value.
  • the supercooling apparatus is provided with an additional heating device (not shown) at the lower part of the water container 1300.
  • the heating device is provided in the upper part of the water container 1300 and the additional heating device is provided in the lower part of the water container 1300, the water in the water container 1300 can be heated by the upper and lower parts, respectively, thereby preventing release of the supercooled state due to a difference in the temperature of the water.
  • control unit control the heating value of the additional heating device (not shown) in addition to that of the heating device 1310.
  • the heating device 1310 alone can be operated, or the additional heating device (not shown) alone can be operated.
  • temperature sensors (not shown) for measuring a temperature of the water in the water container 1300 may be provided at the upper and lower parts, respectively, and a control unit (not shown) may control the heating values of the heating device 1310 and additional heating device (not shown) according to temperatures measured by the respective temperature sensors at the upper and lower parts.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cookers (AREA)

Abstract

La présente invention concerne un appareil de surfusion comprenant un récipient à eau qui est placé dans un espace maintenu à une température inférieure à 0°C et qui est conçu pour stocker de l'eau; un dispositif de chauffage qui est placé au niveau d'une partie supérieure du récipient à eau; ainsi qu'un orifice de sortie qui est placé au niveau d'une partie inférieure du récipient à eau. Cette configuration permet de stocker de l'eau dans un état de surfusion et d'obtenir de l'eau dans un état de purée de glace par prélèvement d'eau en surfusion par l'orifice de sortie et ce, sans retirer le récipient à eau de l'appareil de surfusion.
PCT/KR2008/006171 2008-10-17 2008-10-17 Appareil de surfusion WO2010044498A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2008/006171 WO2010044498A2 (fr) 2008-10-17 2008-10-17 Appareil de surfusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2008/006171 WO2010044498A2 (fr) 2008-10-17 2008-10-17 Appareil de surfusion

Publications (2)

Publication Number Publication Date
WO2010044498A2 true WO2010044498A2 (fr) 2010-04-22
WO2010044498A3 WO2010044498A3 (fr) 2010-11-11

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ID=42106994

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/006171 WO2010044498A2 (fr) 2008-10-17 2008-10-17 Appareil de surfusion

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WO (1) WO2010044498A2 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813896A2 (fr) * 2006-01-14 2007-08-01 Samsung Electronics Co., Ltd. Réfrigérateur doté d'un distributeur de boissons surfondue et son procédé de commande
WO2007094539A1 (fr) * 2006-02-15 2007-08-23 Lg Electronics, Inc. Appareil de surfusion et procédé de fabrication de bouillie de glace par surfusion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813896A2 (fr) * 2006-01-14 2007-08-01 Samsung Electronics Co., Ltd. Réfrigérateur doté d'un distributeur de boissons surfondue et son procédé de commande
WO2007094539A1 (fr) * 2006-02-15 2007-08-23 Lg Electronics, Inc. Appareil de surfusion et procédé de fabrication de bouillie de glace par surfusion

Also Published As

Publication number Publication date
WO2010044498A3 (fr) 2010-11-11

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