WO2012017301A1 - Conteneur de transport réfrigéré - Google Patents

Conteneur de transport réfrigéré Download PDF

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Publication number
WO2012017301A1
WO2012017301A1 PCT/IB2011/001811 IB2011001811W WO2012017301A1 WO 2012017301 A1 WO2012017301 A1 WO 2012017301A1 IB 2011001811 W IB2011001811 W IB 2011001811W WO 2012017301 A1 WO2012017301 A1 WO 2012017301A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
air
refrigeration
outlet
transport container
Prior art date
Application number
PCT/IB2011/001811
Other languages
English (en)
Inventor
Malcolm Dodd
Peter Sidney Worthington-Smith
Original Assignee
Stellenbosch University
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 Stellenbosch University filed Critical Stellenbosch University
Priority to EP11814168.8A priority Critical patent/EP2601115B1/fr
Publication of WO2012017301A1 publication Critical patent/WO2012017301A1/fr
Priority to ZA2013/00411A priority patent/ZA201300411B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
    • B65D88/745—Large containers having means for heating, cooling, aerating or other conditioning of contents blowing or injecting heating, cooling or other conditioning fluid inside the container
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0655—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the top
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0661—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the bottom

Definitions

  • This invention relates to a refrigeration transport container.
  • Refrigerated transport containers are widely used in industry to transport fresh produce.
  • Fruit and vegetables need to be kept at reduced temperatures to maintain the freshness, and in so doing the shelf-life and marketability thereof.
  • Rigid rules regulate the temperature at which, for example, the fruit or vegetables are transported at. If the required temperature is not maintained, the container of fresh produce may be rejected and thus discarded. This can lead to large losses for the supplier.
  • Homogenous, controlled cooling of the contents of refrigerated containers is thus essential.
  • Refrigeration containers typically have a standard configuration with a refrigeration unit located at one end of the container opposite the doors.
  • the refrigeration unit is typically located behind a panel with openings provided at the top and bottom of the panel. Air from the interior of the container is drawn through the opening at the top of the panel into the refrigeration unit and cooled air blown into the container through the opening at the bottom.
  • Standard refrigeration containers also have a floor formed by spaced apart T- sectioned extrusions which run the length of the container from the refrigeration unit to the doors. This is often referred to as a "T-bar floor".
  • T-bar floor With the container loaded with produce, cooled air exiting the refrigeration unit is intended to flow between the extrusions along the length of the floor and then up through the produce before being drawn back into the refrigeration unit. In practice, however, the cooled air flows only very weakly near the door end of the floor as it tends to short-circuit from the outlet to the inlet through gaps between the produce and the sides of the container, and through gaps in the produce near to the outlet. This results in the produce not being homogenously cooled and particularly the produce adjacent the doors often being insufficiently cooled.
  • South African patent number 2009/00716 proposes a refrigeration container in which short-circuiting of cooled air is avoided by covering the conventional T-bar floor with a sheet of metal which leaves an opening adjacent the doors, and through the use of baffles between the produce and the sides and roof of the container.
  • the baffles take the form of inflatable bags or strips of a flexible plastics material. Cooled air thus travels from the refrigeration unit along the floor of the container and enters the container near the doors whereafter it is forced to flow through the produce before reaching the air inlet at the opposite end of the container.
  • the container proposed in this patent appears to work effectively, it suffers the disadvantage that the baffles are cumbersome and inconvenient to install.
  • the cooled air flowing along the floor of the container will tend to absorb heat from the floor and thus provide less efficient heat transfer with the produce once it enters the container. This in turn will require a higher volume of cooled air to be generated and circulated.
  • a refrigeration transport container having doors at one end with a refrigeration unit behind a panel at the opposite end, and wherein the refrigeration unit has a cold air outlet adjacent the bottom of the container and an air inlet adjacent the top thereof, characterised in that the air outlet is configured to discharge air into the container substantially above floor level and wherein the air inlet draws air through a passage which opens into the container near the doors.
  • a barrier to extend upwardly from the floor across the width of the container adjacent the outlet and shaped to direct air upwardly and to prevent movement of pallets on the floor towards the outlet; for the height of the barrier to be substantially the height of a pallet; for elongate spaced apart stops to be provided on the panel extending generally upwardly; for the stops to extend partway between the air inlet and air outlet; and for a plate to extend across the upper end of the stops between the sides of the container. Still further features of the invention provide for the passage to extend along the top of the container from the air inlet to near the doors; and for the passage to extend the width of the container.
  • Figure 1 is part sectional perspective view of a refrigeration container
  • Figure 2 is a sectional side elevation of the refrigeration container in
  • Figure 3 is a sectional plain view of the refrigeration container in
  • a refrigeration transport container (1) in this embodiment a shipping container, is shown in Figures 1 to 3 and includes a refrigeration unit (3) located at one end (5) behind a panel (7) opposite the doors (9).
  • the panel (7) extends parallel to the end (5) between the sides (11) of the container (1) and is spaced apart from the top (13) and bottom (15) thereof to provide elongate openings (17, 19) which act as an air inlet and an air outlet respectively.
  • a T-bar floor (21) is provided on the bottom (15) of the container and extends from the doors (9) to adjacent the air outlet (19).
  • the container described thus far is of conventional configuration.
  • a barrier (25) is provided which extends between the sides (11) adjacent the air outlet (19).
  • the barrier (25) extends from the bottom (15) of the container over the end of the T-bar floor (21) to the height of a standard pallet (27) (shown in broken lines in Figure 2) above the T-bar floor (21).
  • a plate (30) having the same thickness as the tubes extends across the upper ends of the stops (29) between the sides (1 1 ) of the container.
  • the barrier (25) and stops (29) extend the same distance into the container from the panel (7).
  • a passage (40) is provided internally along the top (13) of the container by, in this embodiment, a metal sheet which extends between the sides (1 1 ) from the air inlet (17) to near the doors (9).
  • the passage (40) covers the air inlet (17) so that air is drawn through the passage into the inlet.
  • pallets (27) with produce (45) thereon are loaded into the container with the front of the first pallet abutting the barrier (25) and that of the produce abutting the stops (29).
  • air in the container is drawn through the open end of the passage (40), cooled and forced into the container once more through the outlet (19).
  • the barrier (25) prevents the cooled air from flowing either along the T-bar floor (21 ) or through the aligned openings of the pallets (27). Instead, the cooled air is directed by the barrier (25) upwardly between the stops (29).
  • the plate (30) prevents continued upward flow of the cooled air and which is thus forced to flow through the produce (45) until it is able to escape and return through the passage (40).
  • the configuration of the container is highly effective in that the cooled air is immediately used to cool the produce and does not have an opportunity to short-circuit along the floor, sides or top of the container. Furthermore, the approximately 6m 2 area of the panel (7) over which air is forced into the container is much smaller than the approximately 26m 2 area of the floor and the air velocity is consequently much higher, again providing more efficient heat transfer. Still further, as the air is forced through the produce there is little opportunity for dead spots to form and homogenous cooling is thus achieved. It is calculated that the high degree of homogenous cooling achieved by the configuration of the container of the invention will result in a smaller temperature differential across the refrigeration unit as compared to conventional refrigerated containers and this has the result that the refrigeration unit will operate more effectively and thus use less energy.
  • the container of the present invention does not require airflow along the floor or bottom of the container, and in fact prevents such flow, it is not necessary for the container to be provided with a T-bar floor.
  • the T-bar floor could thus be eliminated, at least in part, and this can result in a saving of up to 750 kg in weight and an associated saving of the cost of materials and manufacturing.
  • the plate across the top of the stops can be bent to extend downwards towards the floor to aid mixing of the air.
  • any suitable stops can be used, including, for example, rubber extrusions.
  • the inlet passage could have any suitable configuration and could, for example, include a number of tubes which could run between the inner and outer sides of the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

L'invention porte sur un conteneur de transport réfrigéré ayant des portes à une extrémité, et comportant une unité de réfrigération derrière un panneau à l'extrémité opposée. L'unité de réfrigération possède une sortie d'air froid adjacente à la partie basse du conteneur et une entrée d'air adjacente à sa partie haute, et le conteneur est caractérisé en ce que la sortie d'air est configurée pour débiter de l'air dans le conteneur sensiblement au-dessus du niveau du plancher, et que l'entrée d'air aspire de l'air à travers un passage qui débouche dans le conteneur à proximité des portes. Une barrière s'étend vers le haut en partant du plancher sur la largeur du conteneur dans une position adjacente à la sortie et elle est de forme appropriée pour diriger l'air vers le haut et pour empêcher les palettes de se déplacer sur le plancher en direction de la sortie. Des butoirs allongés espacés sont agencés sur le panneau en s'étendant globalement vers le haut, et une plaque s'étend en travers de l'extrémité supérieure des butoirs, entre les flancs du conteneur.
PCT/IB2011/001811 2010-08-04 2011-08-04 Conteneur de transport réfrigéré WO2012017301A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11814168.8A EP2601115B1 (fr) 2010-08-04 2011-08-04 Conteneur de transport réfrigéré
ZA2013/00411A ZA201300411B (en) 2010-08-04 2013-01-16 Refrigeration transport container

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2010/05552 2010-08-04
ZA201005552 2010-08-04

Publications (1)

Publication Number Publication Date
WO2012017301A1 true WO2012017301A1 (fr) 2012-02-09

Family

ID=45558987

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/001811 WO2012017301A1 (fr) 2010-08-04 2011-08-04 Conteneur de transport réfrigéré

Country Status (3)

Country Link
EP (1) EP2601115B1 (fr)
WO (1) WO2012017301A1 (fr)
ZA (1) ZA201300411B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106895629A (zh) * 2015-10-09 2017-06-27 Ite株式会社 用于运输的蓄冷系统
CN109230000A (zh) * 2018-09-04 2019-01-18 常州金坛鑫田农业科技有限公司 一种果蔬干雾保鲜集装箱
WO2022088736A1 (fr) * 2020-11-02 2022-05-05 温岭市兴风食品有限公司 Procédé de stockage et de transport pour une logistique de chaîne du froid de produit frais

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246754B (zh) * 2017-06-22 2019-09-20 海信容声(广东)冷柜有限公司 一种风冷卧式冷柜

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000808A1 (fr) 1985-08-09 1987-02-12 Kaj Plagborg Procede pour congeler des marchandises transportees jusqu'a un entrepot frigorifique regional et systeme destine a etre mis en oeuvre avec le procede
US5319941A (en) * 1992-09-22 1994-06-14 Trans-Pak, Inc. System and method for storing perishable products in a refrigerated cargo bay
US6151908A (en) * 1997-11-17 2000-11-28 Contrail Gmbh Large-volume refrigerated shipping container
WO2007129280A1 (fr) * 2006-05-09 2007-11-15 Perishable Products Export Control Board Conteneur réfrigéré
WO2010091181A1 (fr) * 2009-02-09 2010-08-12 Carrier Corporation Amélioration de la distribution de température dans un récipient réfrigéré

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490951A (fr) * 1966-08-30 1967-08-04 Procédé de conditionnement d'air dans un conteneur pour transport de cargaison parroute et voie maritime
SE9600012L (sv) * 1995-12-29 1997-03-03 Frigotainer Ab Kylaggregat för kylcontainer
US7578534B2 (en) * 2005-11-03 2009-08-25 Martin Marietta Materials, Inc. Structural panel for a refrigerated trailer comprising an integrated bulkhead structure for promoting air flow

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000808A1 (fr) 1985-08-09 1987-02-12 Kaj Plagborg Procede pour congeler des marchandises transportees jusqu'a un entrepot frigorifique regional et systeme destine a etre mis en oeuvre avec le procede
US5319941A (en) * 1992-09-22 1994-06-14 Trans-Pak, Inc. System and method for storing perishable products in a refrigerated cargo bay
US6151908A (en) * 1997-11-17 2000-11-28 Contrail Gmbh Large-volume refrigerated shipping container
WO2007129280A1 (fr) * 2006-05-09 2007-11-15 Perishable Products Export Control Board Conteneur réfrigéré
WO2010091181A1 (fr) * 2009-02-09 2010-08-12 Carrier Corporation Amélioration de la distribution de température dans un récipient réfrigéré

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2601115A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106895629A (zh) * 2015-10-09 2017-06-27 Ite株式会社 用于运输的蓄冷系统
CN109230000A (zh) * 2018-09-04 2019-01-18 常州金坛鑫田农业科技有限公司 一种果蔬干雾保鲜集装箱
WO2022088736A1 (fr) * 2020-11-02 2022-05-05 温岭市兴风食品有限公司 Procédé de stockage et de transport pour une logistique de chaîne du froid de produit frais

Also Published As

Publication number Publication date
ZA201300411B (en) 2013-10-30
EP2601115B1 (fr) 2016-11-23
EP2601115A1 (fr) 2013-06-12
EP2601115A4 (fr) 2015-07-08

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