EP0166086A1 - Conteneur de réfrigération pour aéronefs - Google Patents

Conteneur de réfrigération pour aéronefs Download PDF

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Publication number
EP0166086A1
EP0166086A1 EP85103556A EP85103556A EP0166086A1 EP 0166086 A1 EP0166086 A1 EP 0166086A1 EP 85103556 A EP85103556 A EP 85103556A EP 85103556 A EP85103556 A EP 85103556A EP 0166086 A1 EP0166086 A1 EP 0166086A1
Authority
EP
European Patent Office
Prior art keywords
container
dry ice
heat
cooling
usable space
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.)
Granted
Application number
EP85103556A
Other languages
German (de)
English (en)
Other versions
EP0166086B1 (fr
Inventor
Martin A. Prof. Dipl.-Ing. Frank
Klaus G. Prof. Dipl.-Ing. Plassmeier
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.)
Frank Martin Prof
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0166086A1 publication Critical patent/EP0166086A1/fr
Application granted granted Critical
Publication of EP0166086B1 publication Critical patent/EP0166086B1/fr
Expired 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
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
    • F25D3/125—Movable containers

Definitions

  • Mobile containers, trolleys or meal carts are used to cool food and ready meals, in particular to supply passengers in air traffic.
  • the content is cooled by means of dry ice -C0 2 in a solid state - and / or cooling air, the use of dry ice in the trolley being the advantage of its independent mobility without the use of permanently installed refrigerators, primarily during the transport time of the device from the service station to Plane and during other unwanted but unavoidable waiting times.
  • These containers are generally designed so that the dry ice, which sublimates in a C0 2 -containing atmosphere at a temperature lower than -78 ° C (195 K) -so from the solid to the gaseous state directly - in the form of plates or pins (Pellets) is arranged in the uppermost compartment of the device in a slot.
  • the dry ice extracts the necessary sublimation heat primarily from its surroundings outside the usable space.
  • the cold C0 2 gas with about twice the density of air flows along the outer walls into the interior. This cools the load. With this arrangement, sufficient thermal insulation between the dry ice compartment and the usable space is necessary to limit the effect of the heat sink on the uppermost levels. At the lowest levels, the cooling system proves to be inadequate, since the cooling gas has already warmed up on its long path along the walls.
  • the heat absorption Q GAS of a material flow m is always associated with its temperature increase (T 2 - T 1 ).
  • the cooling gas mass flow m is not sufficient to cover the transport heat Q T through the walls:
  • the cooling gas mass flow cannot be increased arbitrarily.
  • the sublimation heat is obtained from rooms and through areas that are not involved in the actual cooling task, e.g. B. the upper cover plate of the container, so that undesirable temperature gradients and unacceptably far apart temperatures build up inside the refrigerated container.
  • a uniform temperature field in the usable space is achieved according to the invention in that a coolant (refrigerant) circulates in a closed circuit and in that it sublimates through indirect heat exchange with the dry ice, the dry ice deliberately withdrawing its sublimation heat from the refrigerated goods in the usable space.
  • a coolant (refrigerant) circulates in a closed circuit and in that it sublimates through indirect heat exchange with the dry ice, the dry ice deliberately withdrawing its sublimation heat from the refrigerated goods in the usable space.
  • Fig. 1 shows a refrigerated container of the conventional design with an open door.
  • the mobile container (1) generally provided with a door (2) on the narrow sides, is through the heat-insulating partition (3) into the utility compartment (4) for the Load and the compartment (5) divided to accommodate an insert (6) that extends over the entire length of the container, or two of each for half the length.
  • These inserts take up the dry ice and usually have a perforated base through which the sublimed CO 2 gas flows down and through slots (7) in the partition (3), as shown in Fig. 2a, along the doors (2nd ) enters the usable space (4).
  • This cold gas mainly absorbs heat from its upper area and forms a C0 2 -air mixture in the entire usable space, which as a bacteriostatic atmosphere offers protection to open, unsealed dishes.
  • the usable space (4) of the container shown is divided into several levels, on which trays (8) for food or larger drawers for other goods are arranged.
  • a cut is made in the plane X, Y through the container according to FIG. 1.
  • the sectional half A shows Fig. 2 a. From the cut half B in FIG. 2b, only the pipe system of the device is shown in a simplified manner, wherein the pipe system, pushed along the line of symmetry S-S upward to FIG. 2a to the extent of the lines Z-Z, changes the overall arrangement of the cooling system gives the usable space.
  • the inner, preferably metallic layer (9) of the container side wall (10) with the beads (11) as a tablet support is largely removed in FIG.
  • the structure of the cooling systems is the same in pairs and z. B. A 1 and B 1 and A 2 and B 2 of the same design and arranged in the side walls (10) around the axis of symmetry S - S.
  • FIG. 3 shows the cooling system as a dimetric image: shows and shows the basic structure, here that of system B1.
  • FIG. 5 The arrangement of the pipelines in the side wall (10) is shown in FIG. 5 as a section according to CD from FIG. 2a.
  • FIG. 3 represents the device for carrying out the thermosiphon principle and consists of a ladder-shaped arrangement lying in the side wall with parallel tubes (12) arranged obliquely at an angle ⁇ , the horizontal tube coil (13) and one not closer Filling valve described and is filled with refrigerant including the coil.
  • the dry ice (14) lies over the coils. Due to the cooling of the refrigerant, it flows down through the downpipe (15) and is distributed in the riser (16) into the parallel, oblique tubes (12) and drives the heated refrigerant, which can also contain steam bubbles, in front of it the manifold (17) and back into the coil (13).
  • the pipes (12, 15, 16, 17) lying in the vertical plane are, as shown in FIG. 5, embedded in the heat-insulating layer (18) of the side wall (10) and have contact with the metallic inner wall (9) with the tray supports ( 11), so that this serves as a heat transfer surface.
  • cooling systems come from e.g. B. copper pipes 6 x 1 mm according to DIN 1786 into consideration.
  • the device can be made from materials that are compatible with refrigerants.
  • the cooling systems arranged symmetrically in FIGS. 2 a and 2 b require that the function of the systems is only slightly impaired when the device is tilted like this when climbing.
  • the slope of the tubes (12) of the systems A 1 and B 1 is increased, thus the function is retained; on the other hand, the function of systems A 2 and B 2 can be weakened by reducing the pipe inclination.
  • the tubes (12) can be placed horizontally on the inner wall (9) and at the same time serve as a tray support.
  • Fig. 4 the second approach is shown, which comprises an evaporator with natural circulation in the vertical side wall (10) and a condenser arranged on the partition (3).
  • FIG. 4 shows a container, the front door (2) of which is open, the side wall of half B has been broken open, the cover plate of the container (1) and the dry ice insert (6) have been removed in order to hold the device in the half labeled A in FIG 1 to show.
  • the evaporator tubes (19) are vertical, are connected to the bottom of the container by a distributor tube (20) and end in an inclined steam collecting tube (21) which connects them to the cooling coil (22).
  • the pipe system is filled with refrigerant up to about 80% of the evaporator height.
  • the special guidance of the downpipe (23) in a loop (24) in the bottom of the container makes it all-round Enclosure of the usable space created with the cooling device.
  • the bottom of the container can be designed as a heat transfer surface like a plate heat exchanger and, in a comparable manner, the systems of FIGS. 2 a and 2 b and FIG. 4 can also be designed in the vertical walls.
  • the evaporator-condenser system can also be divided into two independent systems in each wall, as is the case with the first solution for the Thermosy. phon system is shown in Fig. 2 a and 2 b.
  • the arrangement is again symmetrical so that in a wall, for. B. container half A, the steam collecting tubes (21) falling from the center of the wall towards the door sides and vice versa on the opposite side, that is to say they are arranged to rise towards the door sides.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (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)
EP85103556A 1984-05-30 1985-03-26 Conteneur de réfrigération pour aéronefs Expired EP0166086B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3420256 1984-05-30
DE19843420256 DE3420256A1 (de) 1984-05-30 1984-05-30 Verfahren und vorrichtung zur kuehlung in containern

Publications (2)

Publication Number Publication Date
EP0166086A1 true EP0166086A1 (fr) 1986-01-02
EP0166086B1 EP0166086B1 (fr) 1989-07-19

Family

ID=6237279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103556A Expired EP0166086B1 (fr) 1984-05-30 1985-03-26 Conteneur de réfrigération pour aéronefs

Country Status (3)

Country Link
US (1) US4614091A (fr)
EP (1) EP0166086B1 (fr)
DE (2) DE3420256A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626554A1 (fr) * 1988-02-01 1989-08-04 Carboxyque Francaise Conteneur isotherme a reservoir de produit refrigerant et application au transport de produits frais
FR2629799A2 (fr) * 1988-02-01 1989-10-13 Carboxyque Francaise Trolley ambulant pour le transport de produits frais
EP0337860A2 (fr) * 1988-04-08 1989-10-18 Carboxyque Francaise Conteneur isotherme à réservoir de produit réfrigérant et application au transport de produits frais
FR2725265A1 (fr) * 1994-09-30 1996-04-05 Grandi Rene Vincent Dispositif de regulation et de transfert de fluides frigorifiques ou caloriques pour conteneurs de transport
FR2761144A1 (fr) * 1997-03-24 1998-09-25 Hydrogas France Sa Dispositif de transport de produits frais et procede de production et de transfert de glace carbonique ou neige comprimee dans le dispositif
FR2767771A1 (fr) * 1997-09-03 1999-03-05 Italinnova Sas Chariot pour la conservation froide regulee de plateaux-repas
DE202006011143U1 (de) * 2006-07-13 2007-10-25 Storopack Hans Reichenecker Gmbh Kühlbox

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997033130A1 (fr) * 1996-03-08 1997-09-12 Grandi Rene Chariots mobiles distributeurs de plateaux-repas chauds et froids
US5735131A (en) * 1996-03-26 1998-04-07 Lambright, Jr.; Harley Supplemental refrigerated element
JP2001204553A (ja) * 2000-01-26 2001-07-31 Jamco Corp 航空機用配膳車
KR20050036177A (ko) * 2003-10-15 2005-04-20 엘지전자 주식회사 저진동 에어컨 배관 구조
US8622116B2 (en) * 2008-10-15 2014-01-07 Tai-Her Yang Heat absorbing or dissipating device with multi-pipe reversely transported temperature difference fluids
US8297343B2 (en) * 2008-10-15 2012-10-30 Tai-Her Yang Heat absorbing or dissipating device with multi-pipe reversely transported temperature difference fluids
US8465030B2 (en) * 2008-12-07 2013-06-18 Norduyn Inc. Modular utility cart
FI20106098A0 (fi) 2010-10-25 2010-10-25 Jarmo Aurekoski Lentokoneen tarjoiluvaunun jäähdytysratkaisu
CN105102324A (zh) * 2012-10-11 2015-11-25 戴森航空宇宙集团有限公司 用于飞机餐车和隔室的吸收式冷却
US10407173B2 (en) * 2014-03-10 2019-09-10 The Boeing Company Dry ice draw through galley cooling
CA2964651A1 (fr) * 2017-04-13 2018-10-13 Cryologistics Refrigeration Technologies Ltd. Systeme de refrigeration passive destine au secteur de la chaine de froid
CN111492191A (zh) * 2018-03-06 2020-08-04 普和希控股公司 冷冻装置

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822305A (en) * 1929-04-24 1931-09-08 Charles A Moore Refrigerating system for cars
US1843026A (en) * 1930-07-17 1932-01-26 Dryice Equipment Corp Heat transfer system and method
US2005611A (en) * 1933-06-06 1935-06-18 Fulton Sylphon Co Dry ice refrigerating system
US2055994A (en) * 1934-07-30 1936-09-29 Kelvinator Corp Refrigerating apparatus
USRE21040E (en) * 1939-04-04 Refrigerating apparatus
US2160609A (en) * 1937-05-05 1939-05-30 Charles B White Refrigerating device
US2241053A (en) * 1940-04-25 1941-05-06 Gen Electric Refrigerating machine
DE722900C (de) * 1940-11-30 1942-07-24 Linde S Eismaschinen A G Zweig Kaelteverteiler als Verdampfungssystem mit Trockeneiskondensator und korb- oder kaefigartigem Verdampfer
US2440098A (en) * 1946-12-26 1948-04-20 Pennsylvania Railroad Co Railroad car refrigerated by dry ice and a secondary refrigerating system
US2791888A (en) * 1955-09-22 1957-05-14 Controlled Heat Transfer Corp Heat exchange apparatus
US3172271A (en) * 1963-06-10 1965-03-09 Controlled Heat Transfer Corp Dry ice refrigeration apparatus
US3695056A (en) * 1970-08-26 1972-10-03 Liquid Carbonic Corp Carbon dioxide refrigeration systems
FR2188122A1 (fr) * 1972-06-05 1974-01-18 Burger Eisenwerke Ag
US4285394A (en) * 1977-12-12 1981-08-25 Stewart James M Manifold heat exchanger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475918A (en) * 1967-11-13 1969-11-04 Technology Uk Cooling apparatus employing carbon dioxide
US3783633A (en) * 1970-08-26 1974-01-08 Liquid Carbonic Corp Co{11 {11 {0 refrigeration system
US3788091A (en) * 1970-09-25 1974-01-29 Statham Instrument Inc Thermodynamic cycles
US3906744A (en) * 1972-05-15 1975-09-23 Kardel Prod Corp Passively cooled fluid storage apparatus

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE21040E (en) * 1939-04-04 Refrigerating apparatus
US1822305A (en) * 1929-04-24 1931-09-08 Charles A Moore Refrigerating system for cars
US1843026A (en) * 1930-07-17 1932-01-26 Dryice Equipment Corp Heat transfer system and method
US2005611A (en) * 1933-06-06 1935-06-18 Fulton Sylphon Co Dry ice refrigerating system
US2055994A (en) * 1934-07-30 1936-09-29 Kelvinator Corp Refrigerating apparatus
US2160609A (en) * 1937-05-05 1939-05-30 Charles B White Refrigerating device
US2241053A (en) * 1940-04-25 1941-05-06 Gen Electric Refrigerating machine
DE722900C (de) * 1940-11-30 1942-07-24 Linde S Eismaschinen A G Zweig Kaelteverteiler als Verdampfungssystem mit Trockeneiskondensator und korb- oder kaefigartigem Verdampfer
US2440098A (en) * 1946-12-26 1948-04-20 Pennsylvania Railroad Co Railroad car refrigerated by dry ice and a secondary refrigerating system
US2791888A (en) * 1955-09-22 1957-05-14 Controlled Heat Transfer Corp Heat exchange apparatus
US3172271A (en) * 1963-06-10 1965-03-09 Controlled Heat Transfer Corp Dry ice refrigeration apparatus
US3695056A (en) * 1970-08-26 1972-10-03 Liquid Carbonic Corp Carbon dioxide refrigeration systems
FR2188122A1 (fr) * 1972-06-05 1974-01-18 Burger Eisenwerke Ag
US4285394A (en) * 1977-12-12 1981-08-25 Stewart James M Manifold heat exchanger

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626554A1 (fr) * 1988-02-01 1989-08-04 Carboxyque Francaise Conteneur isotherme a reservoir de produit refrigerant et application au transport de produits frais
FR2629799A2 (fr) * 1988-02-01 1989-10-13 Carboxyque Francaise Trolley ambulant pour le transport de produits frais
EP0337860A2 (fr) * 1988-04-08 1989-10-18 Carboxyque Francaise Conteneur isotherme à réservoir de produit réfrigérant et application au transport de produits frais
US4964283A (en) * 1988-04-08 1990-10-23 Carboxyque Francaise Isothermal container with reservoir for refrigerant and its use for the transportation of fresh products
EP0337860A3 (fr) * 1988-04-08 1991-05-29 Carboxyque Francaise Conteneur isotherme à réservoir de produit réfrigérant et application au transport de produits frais
FR2725265A1 (fr) * 1994-09-30 1996-04-05 Grandi Rene Vincent Dispositif de regulation et de transfert de fluides frigorifiques ou caloriques pour conteneurs de transport
FR2761144A1 (fr) * 1997-03-24 1998-09-25 Hydrogas France Sa Dispositif de transport de produits frais et procede de production et de transfert de glace carbonique ou neige comprimee dans le dispositif
FR2767771A1 (fr) * 1997-09-03 1999-03-05 Italinnova Sas Chariot pour la conservation froide regulee de plateaux-repas
DE202006011143U1 (de) * 2006-07-13 2007-10-25 Storopack Hans Reichenecker Gmbh Kühlbox

Also Published As

Publication number Publication date
US4614091A (en) 1986-09-30
DE3420256A1 (de) 1985-12-05
DE3571689D1 (en) 1989-08-24
EP0166086B1 (fr) 1989-07-19

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