WO2011025090A1 - Dégivreur possédant un fil chauffant accouplé à une ailette de refroidissement et entrepôt à basse température utilisant ce dégivreur - Google Patents

Dégivreur possédant un fil chauffant accouplé à une ailette de refroidissement et entrepôt à basse température utilisant ce dégivreur Download PDF

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Publication number
WO2011025090A1
WO2011025090A1 PCT/KR2009/006639 KR2009006639W WO2011025090A1 WO 2011025090 A1 WO2011025090 A1 WO 2011025090A1 KR 2009006639 W KR2009006639 W KR 2009006639W WO 2011025090 A1 WO2011025090 A1 WO 2011025090A1
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WO
WIPO (PCT)
Prior art keywords
tube
refrigerant
cooling fins
frames
vertical
Prior art date
Application number
PCT/KR2009/006639
Other languages
English (en)
Inventor
Kwan Bin Im
Kab Seok Choi
Original Assignee
Cooltainer Co., Ltd.
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
Priority claimed from KR1020090080855A external-priority patent/KR100961857B1/ko
Application filed by Cooltainer Co., Ltd. filed Critical Cooltainer Co., Ltd.
Publication of WO2011025090A1 publication Critical patent/WO2011025090A1/fr

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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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus

Definitions

  • the present invention relates, in general, to a refrigerating apparatus for a low temperature warehouse which stores agricultural and livestock products, fish and shellfish, foodstuffs, medical supplies, alcoholic liquors, seeds, etc. and, more particularly, to a defroster which has heating wires which heat cooling fins to rapidly eliminate frost (ice) formed on the surface of refrigerant tubes and the cooling fins by evaporation of a refrigerant in the refrigerating apparatus, and a warehouse using the defroster.
  • a defroster which has heating wires which heat cooling fins to rapidly eliminate frost (ice) formed on the surface of refrigerant tubes and the cooling fins by evaporation of a refrigerant in the refrigerating apparatus, and a warehouse using the defroster.
  • a refrigeration cycle includes a compression process, a condensation process, an expansion process and an evaporation process.
  • a compressor compresses a gas refrigerant, such as Freon gas, to form a gas refrigerant at high temperature and high pressure.
  • a condenser cools and condensates, using outside air, the high-temperature and high-pressure gas refrigerant supplied from the compressor and thus liquefies it.
  • an expansion valve decompresses the liquefied refrigerant supplied from the condenser.
  • an evaporator evaporates the refrigerant decompressed by the expansion valve such that the refrigerant absorbs heat from the surrounding air and thus cools the surrounding air.
  • cooled air which has been cooled by giving heat to the refrigerant that passes through the evaporator is supplied into a cold-storage chamber or freezing chamber by the operation of a blower fan, thus cooling or freezing substances stored in the chamber.
  • FIGS. 1 and 2 illustrate a representative example of a conventional evaporator.
  • a conventional evaporator 100 includes a plurality of refrigerant tubes 110 through which a refrigerant passes, a plurality of cooling fins 120 which are provided on the refrigerant tubes 110 to increase heat exchange efficiency of the refrigerant, and side support panels 130 which are coupled to both sides of the refrigerant tubes 110 to support the refrigerant tubes 110.
  • An upper panel 132 is coupled to the upper ends of the side support panels 130.
  • a blower fan 140 is provided ahead of the evaporator 100.
  • a water collection tub 150 is provided below the evaporator 100 to collect water generated from the evaporator 100.
  • the refrigerant that flows through the refrigerant tubes 110 absorbs heat from the surrounding air when evaporating and thus forms cold air.
  • the cold air is supplied into a cold-storage chamber or freezing chamber by the blower fan 140.
  • the cooling fins 120 function to increase the contact area between the refrigerant tubes 110 and the air such that the refrigerant tubes 110 can efficiently absorb heat from the air. Thereby, the surrounding air can be rapidly changed into cold air.
  • air which continuously circulates in the refrigerating apparatus is changed into cold air when coming into contact with the evaporator 100, is supplied into the cold-storage chamber or the freezing chamber, absorbs heat from substances stored in the cold-storage chamber or the freezing chamber, and then is brought into contact with the evaporator 100 again.
  • This circulation process is repeatedly conducted.
  • defrost heaters 200 are installed in the evaporator 100.
  • the defrost heaters 200 generate heat using electric power supplied to the evaporator 100, thereby melting the frost using the heat.
  • Each defrost heater 200 has a bar shape having a predetermined length and is coupled through the side panes 130 of the evaporator 100. Coupling holes through which the defrost heaters 200 are inserted into the evaporator 100 are formed through the side support panels 130.
  • defrost heaters 200 are horizontally coupled only to the side support panels 130 such that the heaters 200 are disposed adjacent to the cooling fins. Thus, defrosting efficiency is low, resulting in an increase of the time taken to defrost.
  • frost ice
  • the frost interrupts heat transfer between the refrigerant and the air. Therefore, as such, if the defrosting operation is not reliably conducted, the load of the compressor is increased, and the refrigerant tubes may be frozen and rupturing. Moreover, the heat exchange efficiency is markedly reduced.
  • an object of the present invention is to provide a defroster in which defrost heaters are directly coupled to cooling fins which are provided on refrigerant tubes of an evaporator of a refrigerating apparatus, thus rapidly defrosting, and a warehouse using the defroster.
  • the present invention provides a defroster provided in an evaporator of a refrigerating apparatus, the refrigerating apparatus comprising: a refrigerant tube through which a refrigerant passes; cooling fins fitted over a circumferential outer surface of the refrigerant tube to increase heat exchange efficiency of the refrigerant; side support panels coupled to both ends of the refrigerant tube to support the refrigerant tube; and an upper panel, wherein a defrost heater is coupled to the cooling fins to eliminate frost formed in the evaporator, the defrost heater including: tube insert holes formed through the cooling fins at positions corresponding to each other; a heating tube fitted into the tube insert holes; a heating wire inserted into the heating tube to transmit power from an exterior to the heating tube; and an insulator inserted into one end of the heating tube to prevent the heating wire from moving relative to the heating tube.
  • a plurality of defrost heaters are directly coupled to cooling fins which are fitted over refrigerant tubes of an evaporator, so that the defrosting is implemented by operating the defrost heaters at the appropriate time. Therefore, compared to the conventional technique, the present invention reduces the heat transfer distance and increases the number of heating points, thus reducing the time taken to defrost. Thereby, the load of a compressor can be reduced, and a refrigerant tube can be prevented from being frozen and rupturing.
  • FIG. 1 is an exploded perspective view of a conventional refrigerating apparatus
  • FIG. 2 is an enlarged sectional view showing a critical portion of FIG. 1;
  • FIG. 3 is a perspective view illustrating a refrigerating apparatus having defrost heaters provided in an evaporator, according to the present invention
  • FIG. 4 is an enlarged sectional view showing a critical portion of FIG. 3;
  • FIG. 5 is an enlarged sectional view showing a critical portion of FIG. 4;
  • FIG. 6 is a side sectional view showing a critical portion of FIG. 3;
  • FIG. 7 is a sectional view illustrating another embodiment of the defrost heater according to the present invention.
  • FIG. 8 is an enlarged sectional view showing a critical portion of FIG. 7;
  • FIG. 9 is a perspective view showing the construction of a low temperature warehouse, according to the present invention.
  • FIG. 10 is a plan view illustrating a bottom support frame of an assembly structure of the low temperature warehouse according to the present invention.
  • FIG. 11 is an exploded perspective view showing a critical part of the bottom support frame of the assembly structure of the low temperature warehouse according to the present invention.
  • FIG. 12 is an exploded perspective view showing a critical part of a vertical finishing member of the assembly structure of the low temperature warehouse according to the present invention.
  • FIGS. 13 and 14 are sectional views showing the construction of a door of the assembly structure of the low temperature warehouse according to the present invention.
  • FIG. 3 is a perspective view illustrating a refrigerating apparatus having defrost heaters 50 provided in an evaporator 10, according to the present invention.
  • FIG. 4 is an enlarged sectional view showing a critical portion of FIG. 3.
  • FIG. 5 is an enlarged sectional view showing a critical portion of FIG. 4.
  • FIG. 6 is a side sectional view showing a critical portion of FIG. 3.
  • the evaporator 10 of the refrigerating apparatus includes a plurality of refrigerant tubes 20, a plurality of cooling fins 30, side support panels 40 and an upper panel 42.
  • a refrigerant flows through the refrigerant tubes 20.
  • the cooling fins 30 are fitted over the circumferential outer surfaces of the refrigerant tubes 20 at positions spaced apart from each other at regular intervals to increase heat exchange efficiency of the refrigerant.
  • the side support panels 40 are coupled to both sides of the refrigerant tubes 20 to support the refrigerant tubes 20.
  • a blower fan 12 is provided ahead of the evaporator 10.
  • a water collection tub 14 is provided below the evaporator 10 to collect water generated from the evaporator 10.
  • the refrigerant that flows through the refrigerant tubes 20 absorbs heat from the surrounding air when evaporating and thus forms cold air.
  • the cold air is supplied into a cold-storage chamber or freezing chamber by the blower fan 12.
  • the cooling fins 30 functions to increase the contact area between the refrigerant tubes 20 and the air such that the refrigerant tubes 20 can efficiently absorb heat from the air. Thereby, the surrounding air can be rapidly changed into cold air.
  • air which continuously circulates in the refrigerating apparatus is changed into cold air when coming into contact with the evaporator 10, is supplied into the cold-storage chamber or the freezing chamber, absorbs heat from substances stored in the cold-storage chamber or the freezing chamber, and then is brought into contact with the evaporator 10 again.
  • This circulation process is repeatedly conducted.
  • the defrost heaters 50 are installed in the evaporator 10.
  • the defrost heaters 50 generate heat using electric power to melt the frost.
  • Each defrost heater 50 includes a plurality of tube insert holes 52, a heating tube 54, and a heating wire 56.
  • the tube insert holes 52 are formed through the cooling fins 30 at positions corresponding to each other.
  • the heating tube 54 is fitted into the tube insert holes 52 of the corresponding cooling fins 30.
  • the heating wire 56 is provided in the heating tube 54 and transmits external power to the heating tube 54.
  • the heating tube 54 is made of metal having superior heat conductivity.
  • An insulator 55 is provided on a first end of the heating tube 54 to prevent the heating tube 54 from moving relative to the heating wire 56.
  • the insulator 55 is inserted into the corresponding support panel 40 which is adjacent to the first end of the heating tube 54, such that a portion of the insulator 55 protrudes from the support panel 40.
  • tube insert holes 52 are formed through the cooling fins 30 at position adjacent to the refrigerant tubes 20 to enhance defrost efficiency.
  • two through four tube insert holes 52 are formed through each cooling fin 30, and a corresponding number of heating tubes 54 are respectively inserted into the tube insert holes 52.
  • each cooling fin 30 has a circular, rectangular, hexagonal and elliptical shape according to the intended purpose.
  • the defrost heaters 50 are installed in an arrangement corresponding to the shape of the cooling fin 30.
  • an insulation coating agent 60 is applied to the inner surface of each of the upper panel 42 and the side support panels 40 into which the refrigerant tubes 20 and the defrost heaters 50 are inserted.
  • An insulation coating agent 60 is also applied to the inner surfaces of the bottom and sidewalls of the water collection tub 14.
  • a ceramic coating agent having superior insulating and adiabatic ability is preferably used as the insulation coating agent 60.
  • the insulation coating agent 60 is also applied to the inner surfaces of the holes of the elements into which the refrigerant tubes 20, the heating tubes 54 and the heating wires 56 of the defrost heaters 50 are inserted.
  • FIGS. 7 and 8 illustrates another embodiment of the defrost heaters 70 according to the present invention.
  • the same reference numerals are used throughout the different drawings to designate the same components as those of the embodiment of FIGS. 3 through 6.
  • Each defrost heater 70 includes a plurality of wire insert holes 72 which are formed through the cooling fins 30 at positions corresponding to each other, and a heating wire 74 which is fitted into the wire insert holes 72.
  • the heating wires 74 are inserted into support panels 40 and are prevented from moving by an insulator 75.
  • wire insert holes 72 are formed through cooling fins 30 at positions adjacent to refrigerant tubes 20 to enhance the efficiency of defrosting.
  • two through four wire insert holes 72 are formed through each cooling fin 30, and a corresponding number of heating wires 74 are respectively inserted into the wire insert holes 72.
  • each cooling fin 30 has a circular, rectangular, hexagonal and elliptical shape according to the intended purpose.
  • the defrost heaters 70 are installed in an arrangement corresponding to the shape of the cooling fin 30.
  • frost formed on the surfaces of the refrigerant tubes 20, the cooling fins 30 and the blower fan 12 is rapidly eliminated by the power applied to the heating wires 74.
  • an insulation coating agent 80 is applied to the inner surface of each of the upper panel 42 and the side support panels 40 into which the refrigerant tubes 20 and the defrost heaters 70 are inserted.
  • An insulation coating agent 80 is also applied to the inner surfaces of the bottom and sidewalls of the water collection tub 14.
  • a ceramic coating agent having superior insulating and adiabatic ability is preferably used as the insulation coating agent 80.
  • the insulation coating agent 80 is also applied to the inner surfaces of the holes of the elements into which the refrigerant tubes 20 and the heating wires 74 of the defrost heaters 70 are inserted.
  • the present invention provides an assembly structure of a low temperature warehouse including an evaporator provided with a defroster having heating wires coupled to cooling fins.
  • FIG. 9 is a perspective view showing the construction of the low temperature warehouse 310, according to the present invention.
  • FIG. 10 is a plan view illustrating a bottom support frame 340 of the assembly structure of the low temperature warehouse 310 according to the present invention.
  • FIG. 11 is an exploded perspective view showing a critical part of the bottom support frame 340 of the assembly structure of the low temperature warehouse 310.
  • FIG. 12 is an exploded perspective view showing a critical part of a vertical finishing member 380 of the assembly structure of the low temperature warehouse 310.
  • FIGS. 13 and 14 are sectional views showing the construction of a door of the assembly structure of the low temperature warehouse 310.
  • the low temperature warehouse 310 has a rectangular parallelepiped shape and includes an inner casing 320 and an outer casing 330, so that substances to be refrigerated are stored in the low temperature warehouse 310.
  • the outer casing 330 includes a bottom support frame 340, a plurality of vertical frames 350, an upper horizontal frame 360 and a roof panel 370.
  • the bottom support frame 340 has a rectangular shape and is closely supported on the ground.
  • the vertical frames 350 are placed upright on the bottom support frame 340.
  • the upper horizontal frame 360 horizontally connects the upper ends of the vertical frame 350 to each other.
  • the roof panel 370 is supported in the upper horizontal frame 360.
  • the inner casing 320 is provided inside the outer casing 330 such that the outer surface of the inner casing 320 is spaced apart from the inner surface of the outer casing 330 by a predetermined distance. Substances to be refrigerated are stored in the inner casing 320.
  • a door 390 is openably provided in the front surface of the outer casing 330.
  • a condenser 31 is provided at a predetermined position on the outer casing 330 and maintains the temperature in the warehouse so that substances stored in the warehouse are kept fresh.
  • the bottom support frame 340 includes first, second, third and fourth frames 343, 344, 345 and 346.
  • An upper horizontal groove 341 extends along the upper portion of the outer surface of each frame 343, 344, 345 346.
  • a stepped coupling part 342 extends along the lower portion of the inner surface of each frame 343, 344, 345, 346. Both ends of each frame 343, 344, 345, 346 are cut at inclined angles such that they can form a rectangular structure.
  • a horizontal coupling hole 347 is longitudinally formed through the stepped coupling part 342 of each frame 343, 344, 345, 346.
  • the bottom support frame 340 includes insert couplers 348 which are bent at right angles and are inserted at both ends thereof into the corresponding horizontal coupling holes 347 of the first, second, third and fourth frames 343, 344, 345 and 346 such that both ends of the first, second, third and fourth frames 343, 344, 345 and 346 are coupled to each other, thus forming the right-angled corners of the bottom support frame 340.
  • Each insert coupler 348 includes a first insert part 348a which is inserted into one horizontal coupling hole 347 of the first, second, third and fourth frames 343, 344, 345 and 346, and a second insert part 348b which perpendicularly extends from the first insert part 348a and is inserted into the corresponding horizontal coupling hole 347 of the neighboring frame 343, 344, 345 or 346.
  • the vertical finishing member 380 includes a member body 383 which is fastened to the corresponding edge of the vertical frame 350. Vertical depressions 382 in which screws 381 are disposed are formed through the member body 383. The vertical finishing member 380 further includes vertical pads 385 which are inserted into the vertical depressions 382 to cover the screws 381.
  • the door 390 includes a doorframe 392, an outer frame 394 and an inner inclined panel 395.
  • the doorframe 392 is provided in the vertical panels 350 of the outer casing 330 and defines a rectangular opening 391 therein.
  • the outer frame 394 which is coupled to the vertical panels 350 by a hinge 393.
  • the inner inclined panel 395 protrudes inwards from the perimeter of the inner surface of the outer frame 394.
  • the inner inclined panel 395 is disposed in a space 391 defined by the doorframe 392.
  • shock absorption part 397 filled with shock absorption material 396 is integrally formed on the perimeter of the inner surface of the outer frame 394.
  • a close contact part 399 integrally protrudes from the outer end of the shock absorption part 397. The close contact part 399 comes into close contact with the doorframe 392.
  • a heating wire 398 is installed in the close contact part 399.
  • an absorption packing 392a is fitted into a slot which extends along the longitudinal central portion of the outer surface of the doorframe 392.
  • the absorption packing 392a slightly protrudes outwards from the outer surface of the doorframe 392.
  • the absorption packing 392a functions to absorb shocks when the door 390 is closed.
  • urethane foam 394a is charged into a space defined by the outer frame 394 and the inner inclined panel 395.
  • the inner casing 320 and the outer casing 330 form a rectangular parallelepiped structure.
  • substances to be refrigerated for example, agricultural and livestock products, fish and shellfish, foodstuffs, medical supplies, alcoholic liquors, seeds, etc. are stored in the low temperature warehouse 310.
  • the insert couplers 348 are fitted into the corresponding horizontal coupling holes 347 which are formed in both ends of the stepped coupling part 342 of the first, second, third and fourth frames 343, 344, 345 and 346 of the bottom support frame 340.
  • both ends of the first, second, third and fourth frames 343, 344, 345 and 346 that is, the corners of the bottom support frame 340, can be retained in the right-angled state by the insert couplers 348.
  • the assembly of the bottom support frame 340 is completed (refer to FIGS. 10 and 11).
  • the vertical frames 350 are vertically coupled to the stepped coupling parts 342 of the bottom support frame 340.
  • the upper horizontal frame 360 is assembled with the upper ends of the vertical frame 350.
  • the roof panel 370 is subsequently assembled with the upper horizontal frame 360.
  • the vertical finishing members 380 are fastened to the edges of the vertical frames 350 such that they are oriented in the vertical direction.
  • the member bodies 383 of the vertical finishing members 380 are brought into close contact with the corresponding edges of the vertical frames 350, and then the screws 381 are tightened through vertical depressions 382, thus fastening the vertical finishing member 380 to the edge of the vertical frame 350.
  • the door 390 is openably provided in the front surface of the outer casing 330 to allow a user to enter the low temperature warehouse 310.
  • the door 390 includes the outer frame 394 which is coupled to the vertical panel 350 by the hinge 393, and the inner inclined panel 395 which protrudes inwards from the perimeter of the inner surface of the outer frame 394 at predetermined angles.
  • the inner inclined panel 395 is disposed in the space defined by the doorframe 392 (refer to FIGS. 13 and 14).
  • shock absorption part 397 filled with shock absorption material 396 is integrally formed on the perimeter of the inner surface of the outer frame 394 to ensure the heat insulation of the low temperature warehouse 310. Furthermore, urethane foam for insulation is charged into the space defined by the outer frame 394 and the inner inclined panel 395.
  • the present invention a plurality of defrost heaters are directly coupled to cooling fins which are fitted over refrigerant tubes of an evaporator, so that the defrosting is implemented by operating the defrost heaters at the appropriate time. Therefore, compared to the conventional technique, the present invention reduces the heat transfer distance and increases the number of heating points, thus reducing the time taken to defrost. Thereby, the load of a compressor can be reduced, and a refrigerant tube can be prevented from being frozen and rupturing.

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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)
  • Geometry (AREA)
  • Defrosting Systems (AREA)

Abstract

L'invention porte sur un dégivreur comportant des fils chauffants accouplés à des ailettes de refroidissement, et sur un entrepôt utilisant le dégivreur. Selon l'invention, plusieurs éléments chauffants de dégivrage (50) sont accouplés directement à des ailettes de refroidissement (30) qui sont montées sur des tubes de réfrigérant (20) d'un évaporateur, de sorte que le dégivrage est obtenu en alimentant les éléments chauffants de dégivrage au moment voulu. Comparativement à la technique classique, l'invention réduit la distance de transmission de la chaleur et augmente le nombre des points de chauffage, réduisant ainsi le temps demandé pour le dégivrage. De cette façon, la charge d'un compresseur peut être réduite et on peut éviter qu'un tube de réfrigérant ne gèle et se rompe.
PCT/KR2009/006639 2009-08-31 2009-11-12 Dégivreur possédant un fil chauffant accouplé à une ailette de refroidissement et entrepôt à basse température utilisant ce dégivreur WO2011025090A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2009-0080855 2009-08-31
KR10-2009-0080856 2009-08-31
KR1020090080855A KR100961857B1 (ko) 2009-08-31 2009-08-31 저온창고
KR20090080856 2009-08-31

Publications (1)

Publication Number Publication Date
WO2011025090A1 true WO2011025090A1 (fr) 2011-03-03

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PCT/KR2009/006639 WO2011025090A1 (fr) 2009-08-31 2009-11-12 Dégivreur possédant un fil chauffant accouplé à une ailette de refroidissement et entrepôt à basse température utilisant ce dégivreur

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WO (1) WO2011025090A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018191552A1 (fr) * 2017-04-12 2018-10-18 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Substrat d'électrofilage à température régulée

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163659U (fr) * 1979-05-14 1980-11-25
KR19990034739U (ko) * 1999-03-22 1999-09-06 김동선 조립식저온저장고
JP2005098538A (ja) * 2003-09-22 2005-04-14 Matsushita Electric Ind Co Ltd 熱交換ユニット及びこの熱交換ユニットを備えた冷蔵庫
KR200391813Y1 (ko) * 2005-05-04 2005-08-09 주식회사 리바트 가구의 판넬 연결장치
KR100535218B1 (ko) * 2005-08-16 2005-12-08 박광균 저온창고용 자연대류식 냉방장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55163659U (fr) * 1979-05-14 1980-11-25
KR19990034739U (ko) * 1999-03-22 1999-09-06 김동선 조립식저온저장고
JP2005098538A (ja) * 2003-09-22 2005-04-14 Matsushita Electric Ind Co Ltd 熱交換ユニット及びこの熱交換ユニットを備えた冷蔵庫
KR200391813Y1 (ko) * 2005-05-04 2005-08-09 주식회사 리바트 가구의 판넬 연결장치
KR100535218B1 (ko) * 2005-08-16 2005-12-08 박광균 저온창고용 자연대류식 냉방장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018191552A1 (fr) * 2017-04-12 2018-10-18 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Substrat d'électrofilage à température régulée
US11160143B2 (en) 2017-04-12 2021-10-26 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Temperature controlled electrospinning substrate

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