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WO2014147076A1 - Procédé et appareil pour réduire la formation de glace dans un conteneur frigorifique - Google Patents

Procédé et appareil pour réduire la formation de glace dans un conteneur frigorifique Download PDF

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Publication number
WO2014147076A1
WO2014147076A1 PCT/EP2014/055421 EP2014055421W WO2014147076A1 WO 2014147076 A1 WO2014147076 A1 WO 2014147076A1 EP 2014055421 W EP2014055421 W EP 2014055421W WO 2014147076 A1 WO2014147076 A1 WO 2014147076A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
heating elements
defrost system
evaporator
container
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.)
Ceased
Application number
PCT/EP2014/055421
Other languages
English (en)
Inventor
Gert JØRGENSEN
Lars LÜBKER
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.)
Maersk Container Industri AS
Original Assignee
Maersk Container Industri AS
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 Maersk Container Industri AS filed Critical Maersk Container Industri AS
Publication of WO2014147076A1 publication Critical patent/WO2014147076A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • F25D17/067—Evaporator fan units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/10—Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F04D19/005—Axial flow fans reversible fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/003—Transport containers
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/003—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
    • 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
    • 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
    • F25D2317/063—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 with air guides
    • 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
    • F25D2317/068—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 fans
    • F25D2317/0681—Details thereof
    • 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
    • F25D2317/068—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 fans
    • F25D2317/0684—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 fans the fans allowing rotation in reverse direction

Definitions

  • the invention relates to a defrost system in a reefer container for shipping goods, which container comprises a plurality of sidewalls forming the sides, floor and ceiling in the container, a front end comprising cooling and or ventilating means and a rear end comprising an opening to be closed by one or more doors, a reefer machine further comprising one or more evaporators having one or more coils, and one or more fans for transporting cooling air into the container where heating elements are provided in a duct at a perimeter of the fan, or at a rim surrounding the fan at its perimeter.
  • the invention further relates to a method for reducing ice forming in a reefer machine for a reefer container with a defrost system according to the above.
  • a defrost system with a defrost function can be initiated in a number of ways, such as a time constraint, ice counter, on demand, based on operation parameters etc.
  • a defrost function regardless of the initiation as mentioned above, follows a strict and well defined pattern.
  • the defrosting of an evaporator coil is done by stopping the refrigeration system and, if heaters placed right below the evaporator coil are available, the heaters are turned on until the temperature of the evaporator coil fins reach a defined temperature above the freezing point, thereafter the refrigeration system returns to normal operation.
  • the fans are highly exposed to cold air, high air velocities and various humidity levels. All combinations of the above may arise around the evaporator fan motors causing frost and ice to form on wings of the fan, on walls of air channels, on brackets etc.
  • one or more water traps are placed below the evaporator. Water from the water traps can be drained and discharged to the outside of the container or the water can be reintroduced into the environment in the container to maintain a certain humidity level.
  • the defrost function is further provided with heaters placed in the air channel surface near each evaporator fan motor. These heaters can be energised along with the traditional evaporator heaters (placed just below the evaporator coil) or they can be energised separately, fully or in pulses, whichever is required in the situation.
  • the evaporator fan motors are stopped during a defrost session to allow warm air and heat from the energised heaters to pass upwards through the ice blocked evaporator. Since the traditional transport container refrigera- tion system has evaporator motors placed above the evaporator, the ice issue around the fan wings and fan motors are not creating problems.
  • heating elements are provided in a duct at a perimeter of the fan, or at a rim surrounding the fan at its perimeter the heating elements, or groups of heating elements, can be energised separately, fully or in pulses, adapted to the situation.
  • the fans are placed in ducts, which ducts are arranged between a central part of the reefer machine and a sidewall of the container.at each side of the reefer machine
  • one or more evaporator heaters are placed below the evaporator coil or coils.
  • the heating elements can be energised sepa- rately to heat a duct at a perimeter of the fan, or at a rim surrounding the fan at its perimeter at a time.
  • the fan or fans are powered by permanent magnet motors.
  • the fan or fans are provided with heating elements in fan blades or wings.
  • a hub of the fan can be provided with heating elements and heat from the hub is transferred to the blades or wings of the fan due to the heat transmission of the selected materials or heat transmitting materials provided within the blades or wings of the fan.
  • a protruding surface and an edge forms a trap for trapping liquid or ice is provided above the one or more fans.
  • the edge can have a rounded shape to give a better airflow in the duct.
  • the edge can form a groove or gutter for collection of water and ice.
  • power draft of the one or more fan motors are monitored and an increase in power draft implies that the heating elements are following activated.
  • the fan or fans are arranged together with a motor in a unit for removal or exchange during maintenance.
  • Reduction of ice forming in the defrost system is also achieved according to a method where fan motors are allowed to run slowly in either forward and/or reverse direction at the same time increasing the heat distribution in air channels or ducts, below the evaporator and through the evaporator, and keeping air flow at a sufficient low level ensuring that only little heat, preferably no heat enters a cargo space in the container.
  • fan motors are run in such a way that the heated air is circulated within the refrigerating system by letting one fan blow heated air in one direction and let another fan blow heated air in the opposite direction.
  • the heated air can circulate through the air channels or ducts and through the evaporator, without entering the cargo space.
  • the heating elements for heating the ducts in an area near to the fan are energised separately.
  • one heating element or one group of heating elements situat- ed close to one of the fans at a time.
  • the heating elements are energised in pulses.
  • Fan wing ice block prevention is a feature used to protect the evaporator fan motors when starting in cold ambient temperatures or in other situations, which has consequences in terms of ice building on or near the evaporator fan wings.
  • the torque and power consumption of the motors, when the evaporator fan motors are energised for the first time during a start-up procedure is measured and should be below predefined limits.
  • One or more ducts can be provided with a guiding system in a maintenance or service opening in the duct for guiding and supporting a fan unit within the duct.
  • the guiding system can be provided by a notch or groove in the pe- rimeter of the duct and a corresponding ridge or spline provided at the rim of the fan unit or vice versa.
  • the fan unit is powered by electrical wires and a plug and socket can be pro- vided within the service opening making it possible to disconnect the wire and to remove the fan and motor as a unit.
  • the wiring can be fastened to fastening elements by means of one or more struts or ribs fastening the fan motor to the rim or the wiring can be estab- lished through the one or more struts or ribs.
  • the power can be provided to the fan motor through connectors (not shown) moulded into one or more struts or ribs connecting the fan motor to the rim.
  • an insert is provided with an inner part having a shape corresponding to the duct in such a way that the insert forms part of the duct when inserted in the duct.
  • the insert can be provided with a plate for giving the insert a plane outer surface which is substantially level with the outer surface of the reefer machine.
  • FIG. 1 shows schematically the air flow through a reefer machine or refrigeration system of a reefer container
  • Figure 2 shows schematically re-circulated air flow through a reefer machine or refrigeration system of a reefer container
  • Figure 3 shows schematically the refrigeration system of a reefer container from figure 2, showing in detail an embodiment of a part of a labyrinth or water trap having a protruding surface with a rounded edge;
  • Figure 4 shows schematically the refrigeration system of a reefer container from figure 2, showing in detail an embodiment of a part of a labyrinth or water trap having an edge with a rounded shape;
  • Figure 5 shows a reefer machine to be placed in the front end of a reefer container, which reefer machine is provided with openings for insertion and removal of one or more fans; and
  • Figure 6 shows an enlarged view of an opening showed in figure 5.
  • a defrost system is provided for removing or thawing up ice, which ice can be formed on or in an evaporator 3.
  • Evaporator fan motors 25 and fans 2 are provided downstream from the evaporator 3, why the fans 2 are highly exposed to cold air, high air velocities and various humidity levels. All combinations of the above may arise around the evaporator fan motors causing frost and ice to form on wings of the fan 2, on walls of air channels 80 or ducts 8, on brackets etc. Furthermore, water from drain blockage, leftover water overflow from above placed water traps 9, 10 might contribute to the start of ice building in the air channels 80 or ducts 8.
  • the fans 2 are placed in ducts 8, which ducts 8 are arranged between a central part 12 of the reefer machinel and a sidewall of the container, at each side of the reefer machine 1 .
  • a "labyrinth" or trap By shaping an area above the duct 8 and below the evaporator 3 as a "labyrinth" or trap (see figure 3 and 4), water is prevented from dripping directly down on the fan 2.
  • the trap can be provided by a surface 9 protruding into the reefer machine 1 Further a central part 12 of the reefer machine 1 is formed with its upper part having inclining sides 120 inclining from an area 121 substantially in the middle part of the central part 12 and downwards towards the ducts 8.
  • a slightly ascending portion is provided on edge 19 of the surface 9 protruding into the reefer machine 1 and an edge 10 is provided in a transition area of the central part 12 where the inclining side 120 goes into a more vertical direction and forms a part of the duct 8 or the ducts 8 adjoins the transition area of the inclining side 120.
  • the edge 19 has a rounded shape.
  • the edge 10 prevents water or ice from entering the duct 8 and the protruding surfaces 9 ensures that water or ice dripping from the evaporator 3 will be lead onto the inclining surfaces 120.
  • a drain (not shown) is provided near the edge 10 to be able to lead the water and thawed ice into a reservoir (not shown) or to outside of the container.
  • the edge 10 has a rounded shape.
  • edge 10 is sharp, it is more convenient to stop and collect water in the trap, but the airflow in the system will be more turbulent. If the edge is rounded and thereby the edge 10 being less sharp, the airflow will be more laminar which will lead to a more optimal airflow. Therefore in situations where the airflow is more important than the water collection a rounded edge 10 is chosen and in situations where water collection is more important that the airflow a more sharp edge 10 is chosen.
  • the defrost function is further provided with heaters placed in the air duct 8 surface 1 1 near each evaporator fan motor 25. If the above mentioned combinations of conditions of air and humidity should cause ice forming in the duct 8, especially on the fan blades or wings or near the fan 2, heating elements 1 1 are provided for thawing the ice.
  • any ice build-up can effectively be removed by heating up the element 1 1 .
  • this will happen simultaneous with general defrosting of the evaporator 3.
  • heating elements 1 1 are activated.
  • the activation can be initiated by detection of one or more of following situations as an example: the fan 2 needs excessive power to run, the fan 2 runs too slow in relation to the power input to the motor 25, the fan 2 is blocked, and/or the fan 2 is wobbling.
  • These situations can be symptoms of ice generated on or near the fan 2 or fan blades or wings.
  • one or more heating elements 1 1 are placed near the fan or fans 2 to be able to thaw the ice. This can also be used as an alert that one or more motors 25 are too heavy loaded for some reason (dirt or foreign objects blocking the fan 2).
  • one or more heating wires or heating elements 1 1 provided in a duct 8 at a perimeter 20 of the fan 2, or at a rim 200 surrounding the fan 2 at its perimeter can be activated to heat the fan blades or wings or the area of the duct 8 surrounding the fan 2 or at the rim 200 surrounding the fan 2 at its perimeter 20 and thereby thaw the ice.
  • one or more evaporator heaters 1 10 are placed below the evaporator coil or coils 3.
  • heating elements 1 1 , 1 10 can be energised separately, fully or in pulses, adapted to the situation.
  • the heating elements 1 1 can be energised separate- ly to heat a duct 8 at a perimeter 20 of the fan 2, or at a rim 200 surrounding the fan 2 at its perimeter 20 at a time.
  • the fan or fans 2 are powered by permanent magnet motors 25.
  • the fan 2 can be provided with heating el- ements 1 1 in the fan blades or wings (not shown).
  • the energy can be transferred to the heating elements 1 1 in the fan blades or wings by ordinary commutators or the energy can be transferred by induction.
  • a protruding surface 9 and an edge 10 forming a trap for trapping liquid or ice is provided above the one or more fans 2.
  • power draft of the one or more fan motors 25 are monitored and an increase in power draft imply that the heating elements are following activated.
  • fan or fans 2 are arranged together with a motor 25 in a unit 180 for removal or exchange during maintenance.
  • the system can be put into defrosting mode.
  • the defrosting mode is entered by letting a fan 2 direct the airflow 4 in one direction and another fan 2 direct the airflow 4 in another direction, thereby letting the airflow 4 circulate within the cooling engine. If one fan is blowing the air in a downwards direction, the other fan is set to blow the air in an upwards direction as shown in Figure 2.
  • defrosting mode is entered by heating the air 4 blown through the evaporator 3.
  • This method can cause that heated air is blown into the cargo space thereby raising the temperature in the environment already cooled down.
  • a more expedient way to enter defrosting mode of the reefer machine 1 is achieved.
  • fan motors 25 are allowed to run slowly in either forward and/or reverse direction at the same time increasing the heat distribution in air channels 80 or ducts 8, below the evaporator 3 and through the evaporator 3, and keeping air flow 4 at a sufficient low level ensuring that only little heat, preferably no heat enters a cargo space in the container.
  • the fan motors 25 are run in such a way that the heated air is circulated within the refrigerating system 1 by letting one fan 2 blow heated air in one direction and let another fan 2 blow heated air in the opposite direc- tion.
  • warm air will be circulated within the refrigerating system. This can be done for example by letting one fan 2 blow heated air in one direction and let another fan 2 blow heated air in the opposite direction. Thereby is achieved that the heated air can circulate through the air channels 80 or ducts 8 and through the evaporator 3, without entering the cargo space.
  • the heaters placed in the duct 8 at the perimeter 20 of the fan, or at the rim 200 surrounding the fan 2 at its perimeter, can be energised along with tradi- tional evaporator heaters which is placed just below the evaporator coil (not shown) or they can be energised separately fully or in pulses, whichever is required in the situation.
  • the heating elements 1 1 in the ducts 8 can be energised separately from each other. Thereby it is possible to only energise one heating element or group of heating elements 1 1 which relates to one duct 8, if this duct forms ice in the area close to the fan 2.
  • the evaporator fans 2 are installed below the evaporator 3, the possible water leaks and ice building around the fans 2 could be thawed by the heaters, but if the fan motors 25 are allowed to run slowly in either forward and/or reverse direction at the same time, heat distribution will increase in the air channels 80 or ducts 8, below the evaporator 3 and through the evapora- tor 3.
  • the air flow 4 should be kept at such a level that the heat does not enter the cargo space.
  • One or more ducts 8 can be provided with a guiding system in a maintenance or service opening 18 in the duct 8 for guiding and supporting a fan unit 180 within the duct 8.
  • the guiding system can be provided by a notch or groove in the perimeter 20 of the duct 8 and a corresponding ridge or spline provided at the rim 200 of the fan unit 180 or vice versa.
  • the fan unit 180 is powered by electrical wires and a plug and socket can be provided within the service opening 18 making it possible to disconnect the wire and to remove the fan and motor 25 as a unit 180.
  • the wiring can be fastened to fastening elements by means of one or more struts or ribs fastening the fan motor 25 to the rim 200 or the wiring can be established through the one or more struts or ribs.
  • the power can be provided to the fan motor 25 through connectors (not shown) moulded into one or more struts or ribs connecting the fan motor 25 to the rim 200.
  • an insert 21 is provided with an inner part having a shape corresponding to the duct 8 in such a way that the insert 21 forms part of the duct 8 when inserted in the duct 8.
  • the insert 21 can be provided with a plate 22 for giving the insert a plane outer surface which is substantial- ly level with the outer surface of the reefer machine 1 .

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

Abstract

L'invention concerne un procédé et un appareil pour réduire la formation de glace dans un conteneur frigorifique. L'invention porte sur un système de dégivrage pour réduire la formation de glace dans un conteneur frigorifique pour expédier des marchandises, lequel conteneur comprend une pluralité de parois latérales formant les côtés, le plancher et le plafond dans le conteneur, une extrémité avant comprenant des moyens de refroidissement et/ou de ventilation et une extrémité arrière comprenant une ouverture destinée à être fermée par une ou plusieurs portes, une machine frigorifique comprenant de plus un ou plusieurs évaporateurs et un ou plusieurs ventilateurs pour transporter de l'air de refroidissement dans le conteneur, des éléments de chauffage étant situés dans un conduit (8) au niveau d'une périphérie (20) du ventilateur (2), ou au niveau d'un rebord (200) entourant le ventilateur (2) à sa périphérie (20), et les éléments de chauffage (11, 110) ou des groupes d'éléments de chauffage pouvant être alimentés séparément, complètement ou par impulsions, de façon adaptée à la situation. L'invention porte également sur un procédé pour réduire la formation de glace dans une machine frigorifique (1) avec un système de dégivrage selon ce qui est décrit ci-dessus.
PCT/EP2014/055421 2013-03-19 2014-03-18 Procédé et appareil pour réduire la formation de glace dans un conteneur frigorifique Ceased WO2014147076A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DKPA201370160 2013-03-19
DKPA201370161 2013-03-19
DKPA201370161 2013-03-19
DKPA201370160 2013-03-19

Publications (1)

Publication Number Publication Date
WO2014147076A1 true WO2014147076A1 (fr) 2014-09-25

Family

ID=50288085

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2014/055419 Ceased WO2014147075A1 (fr) 2013-03-19 2014-03-18 Capacité de transport accrue dans un conteneur
PCT/EP2014/055421 Ceased WO2014147076A1 (fr) 2013-03-19 2014-03-18 Procédé et appareil pour réduire la formation de glace dans un conteneur frigorifique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/055419 Ceased WO2014147075A1 (fr) 2013-03-19 2014-03-18 Capacité de transport accrue dans un conteneur

Country Status (5)

Country Link
US (1) US20160282033A1 (fr)
EP (1) EP2976582B1 (fr)
CN (1) CN105247303B (fr)
DK (1) DK2976582T3 (fr)
WO (2) WO2014147075A1 (fr)

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JP2017122569A (ja) * 2015-12-29 2017-07-13 マースクライン エーエスＭａｅｒｓｋ Ｌｉｎｅ Ａ／Ｓ 冷凍コンテナにおける除霜サイクルをいつ終了させるかを決定する方法
US11079158B2 (en) 2016-10-10 2021-08-03 Carrier Corporation Method of stacking refrigerated shipping containers

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US20170241700A1 (en) * 2016-02-24 2017-08-24 General Electric Company Water Reservoir Assembly and a Refrigerator Appliance
KR102747193B1 (ko) * 2018-11-30 2024-12-27 삼성전자주식회사 냉장고 및 그 제어방법
US10837220B1 (en) * 2019-10-02 2020-11-17 Robert A. Kelley Insulated diamond plate backed novel portions of a garage door panel
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EP2976582A1 (fr) 2016-01-27
DK2976582T3 (en) 2018-01-02
CN105247303A (zh) 2016-01-13
US20160282033A1 (en) 2016-09-29
WO2014147075A1 (fr) 2014-09-25
EP2976582B1 (fr) 2017-10-25

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