WO2014111530A1 - Récipient permettant de refroidir et/ou de maintenir au froid des produits à réfrigérer - Google Patents

Récipient permettant de refroidir et/ou de maintenir au froid des produits à réfrigérer Download PDF

Info

Publication number
WO2014111530A1
WO2014111530A1 PCT/EP2014/050914 EP2014050914W WO2014111530A1 WO 2014111530 A1 WO2014111530 A1 WO 2014111530A1 EP 2014050914 W EP2014050914 W EP 2014050914W WO 2014111530 A1 WO2014111530 A1 WO 2014111530A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
container
wall
sealing
container according
Prior art date
Application number
PCT/EP2014/050914
Other languages
German (de)
English (en)
Inventor
Ralf Böss
Peter Wirth
Michael Kauffeld
Original Assignee
Blanco Professional Gmbh + Co Kg
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 Blanco Professional Gmbh + Co Kg filed Critical Blanco Professional Gmbh + Co Kg
Priority to EP14700732.2A priority Critical patent/EP2946156A1/fr
Publication of WO2014111530A1 publication Critical patent/WO2014111530A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F25D23/082—Strips
    • F25D23/085—Breaking strips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F25D23/082—Strips
    • F25D23/087—Sealing strips

Definitions

  • Container for cooling and / or keeping cool a chilled goods
  • the present invention relates to a container for cooling and / or keeping refrigerated goods, in particular food, said container having a thermally insulated body, a thermally insulated door and a sealing arrangement which in the closed state of the door a fluid passage between a cooled interior of the container and an outer space of the Container seals, includes.
  • the previously known sealing systems for sealing the door of such a container consist of a hollow seal, a simple lip seal or a double lip seal.
  • a simple lip seal only prevents the direct exchange of air between the interior of the container and the outside of the container. It has almost no heat-insulating properties.
  • a single hollow seal and also a double lip seal form a closed cavity in the fluid channel between the interior of the container and the outer space of the container, thereby providing better thermal insulation.
  • a simple cavity seal or lip seal a single, local damage to the respective seal is sufficient to render the seal useless.
  • the present invention has for its object to provide a container of the type mentioned above, the sealing arrangement allows the longest possible keeping cool the refrigerated goods in the interior of the container and maintains a good thermal insulation even with individual local damage to the seal assembly. - -
  • the seal assembly comprises a plurality of the fluid channel sealing sealing elements through which in the closed state of the door of the fluid channel in two or more in the fluid path through the fluid channel from the interior to the outside sub sequential fluid-tight chambers is divided.
  • a plurality of sealing elements are used in the sealing arrangement such that a further, fluid-tight sealed air chamber is formed between the sealing elements, which substantially improves the heat-insulating effect of the sealing arrangement.
  • each of the sealing elements of the sealing arrangement seals off the fluid channel independently, so that the fluid path through the fluid channel from the interior to the outer space of the container is already blocked by a single one of these sealing elements.
  • the sealing arrangement of the container according to the invention preferably comprises at least one hollow seal, through which one of the fluid-tight chambers is already formed in the fluid channel.
  • Another fluid-tight chamber in the fluid channel can be produced for example by an additional lip seal and / or by an additional hollow seal.
  • the sealing arrangement comprises two or more hollow seals. - -
  • the sealing arrangement comprises a plurality of sealing the fluid channel sealing elements through which in the closed state of the door, the fluid channel is divided into at least three in the fluid path through the fluid channel from the interior to the outer space consecutive fluid-tight chambers.
  • the sealing arrangement preferably comprises at least one sealing element, which lies flat against a sealing surface of the door or the body in the closed state of the door.
  • the sealing arrangement comprises at least one door sealing element arranged on the door and at least one body sealing element arranged on the body.
  • At least one sealing element of the seal assembly is releasably held on the door or on the body.
  • the container comprises at least one connecting profile which connects an inner wall of the door or the body and an outer wall of the door or the body to each other.
  • connection profile is preferably designed so that it has a maximum profile thickness of at most about 5 mm, preferably of at most about 3 mm, in particular of at most about 2 mm, having.
  • connection profile has at least one bulge, which extends the path from the outer wall of the door or the body through the connection profile to the inner wall of the door or the body.
  • connection profile form a seal receiving channel, on which a sealing element of the seal assembly is held.
  • connection profile of a material with a low thermal conductivity, in particular of a material such as a plastic material, with a thermal conductivity of less than
  • connection profile comprises a plastic material, in particular is substantially completely formed from a plastic material.
  • connection profile is wholly or partially formed from acrylonitrile-butadiene-styrene (ABS), since this material has a particularly low thermal conductivity.
  • ABS acrylonitrile-butadiene-styrene
  • the container has a door connection profile, which connects an inner wall of the door and an outer wall of the door, and a carcass connection profile, the one Inner wall of the body and an outer wall of the body connects to each other includes.
  • both the door connection profile and the body connection profile have the properties of a connection profile explained above, which lead to a low thermal conductivity of the connection profile.
  • At least one connecting profile is releasably fixed to the inner wall of the door or the body and / or on the outer wall of the door or the body.
  • the achievable cooling holding period for the refrigerated goods in the container can be further extended if the body and / or the door has a heat insulation, which comprises at least one vacuum insulated panel ("VIP").
  • a vacuum insulation panel may comprise a porous core material serving as a support body and a gas-tight enclosure preventing gas entry into the vacuum insulation panel.
  • the heat insulation of the container may comprise another heat-insulating material, in particular a heat-insulating plastic material, for example a polyurethane material.
  • sealing arrangement of the container according to the invention are formed by the use of multiple sealing elements in the closed state of the door in the fluid path through the fluid channel from the interior of the container in the outer space a plurality of fluid-tight chambers, which prevent the heat transfer through the door gap.
  • the at least one further sealing element and optionally also the air chamber enclosed between the two sealing elements still fulfill their sealing function, so that the sealing arrangement has good emergency running properties.
  • two or more sealing elements can be used in the sealing arrangement according to the invention, wherein the essentially fluid-tight chambers formed between the sealing elements additionally act as heat insulators.
  • the container comprises a storage tank arrangement for storing a flowable refrigerant.
  • This is preferably a multiphase flowable coolant.
  • Such a multiphase, flowable brine may be in particular a binary ice.
  • Binary ice also known as liquid ice, flow ice or smart ice
  • a solid ice phase is a flowable and pumpable, two-phase mixture of a solid ice phase and a liquid phase, preferably a liquid water / alcohol phase (which thus contains water and an alcohol as freezing point-lowering substance) in which the ice phase is suspended.
  • a liquid water / alcohol phase which thus contains water and an alcohol as freezing point-lowering substance
  • the binary ice When this binary ice is used to cool a chilled product, the binary ice absorbs heat from the chilled goods and converts them to latent heat of the binary ice by melting a portion of the ice phase of the binary ice. In this case, the temperature of the binary ice is changed only to a small extent (for example, by 2 K or less), at least as long as the ice phase of the binary ice is not completely melted.
  • Binary ice is due to these properties and because of its pumpability ideally suited to be filled in stationary or mobile containers as a flowable refrigerant.
  • the sealing arrangement and the heat insulation of the container are designed such that the interior of the container can be maintained at the desired operating temperature (for example approximately + 4 ° C.) during a cooling holding period of at least 48 hours, without supplying energy to the container.
  • Fig. 1 is a schematic representation of a brine supply system with a filling system for filling a container for
  • Fig. 2 is a schematic perspective view of the container
  • Fig. 3 is a schematic sectional perspective view of
  • a container of Figure 2 showing the coolable interior of the container, a storage tank assembly of the container, and tubing within the container;
  • Fig. 4 is a schematic vertical section through the container from the
  • FIGS 2 and 3 taken parallel to one of the side walls of the body of the container.
  • Fig. 5 shows an upper portion of a schematic vertical section
  • Fig. 6 is a schematic perspective view of an air duct device which is arranged in the interior of the container;
  • Fig. 7 is a schematic vertical section through an edge region of
  • FIG. 8 a of FIG. 7 corresponding schematic section through the
  • a brine supply system generally designated 100 in FIG. 1, comprises a brine process tank 102 for storing a flowable brine, for example binary ice, a fluid collection tank 104 for temporarily storing molten brine, and a filler 106 for filling a tank 108 for cooling and / or keeping food cool with the flowable refrigerant and for previously emptying refrigerant from a storage tank assembly 110 of the container 108.
  • a brine process tank 102 for storing a flowable brine, for example binary ice
  • a fluid collection tank 104 for temporarily storing molten brine
  • a filler 106 for filling a tank 108 for cooling and / or keeping food cool with the flowable refrigerant and for previously emptying refrigerant from a storage tank assembly 110 of the container 108.
  • the brine process tank 102 is connected via a brine feed line 112 to a brine generator (not shown), such as an ice maker for producing binary ice.
  • a brine generator such as an ice maker for producing binary ice.
  • one or more feed pumps 114 may be arranged.
  • the brine process tank 102 may include a motor driven stirrer 116.
  • the brine from the brine process tank 102 is circulated in a circulation line 118 by means of one or more circulation pumps 120 and fed back to the brine process tank 102.
  • a brine supply line 122 branches off, which is connected to a brine inlet valve 124 of the filling system 106.
  • a cold carrier line 126 in which a filling pump 128 is arranged, leads to a first connection 130 of a multiway valve 132.
  • a coolant line 136 leads to a coolant coupling 138 of the filling system 106.
  • a check valve 140 In the brine conduit 136, a check valve 140, a pressure measuring device 142 and / or a temperature measuring device 144 may be arranged.
  • a fluid line 148 in which a drain pump 149 is arranged, leads to a fluid outlet valve 150 of the filling system 106.
  • a fluid discharge line 152 Connected to the fluid outlet valve 150 is a fluid discharge line 152, which opens into the fluid collecting container 104.
  • the fluid reservoir 104 may be provided with a motor driven stirrer 154.
  • a fluid outlet of the fluid collection reservoir 104 is connected to the brine generator (not shown), such as an ice maker for producing binary ice, via a fluid discharge line 156 in which one or more discharge pumps 156 are disposed.
  • the filling system 106 further comprises a pressure compensation coupling 158, to which an open at its pressure equalizing coupling 158 end 159 open pressure equalization line 160 is connected.
  • a check valve 162 may be arranged in the pressure equalization line 160.
  • any entrained fluid from the airflow passing through the pressure equalization line 160 to its end 159 is collected in an open fluid recovery funnel 164.
  • the fluid collecting funnel 164 is connected via a fluid line 166, in which a valve 168 is arranged, to the fluid line 148, which leads from the third port 146 of the multiway valve 132 via the drain pump 149 to the fluid outlet valve 150 of the filling system 106.
  • the container 108 shown in detail in FIGS. 2 to 8 comprises a body 170 with a bottom wall 172, with a top wall 174, with two vertical side walls 176 interconnecting the bottom wall 172 and the top wall 174, with also the bottom wall 172 and Ceiling wall 174 interconnecting vertical front wall 178 and with a likewise the bottom wall 172 and the top wall 174 interconnecting vertical rear wall 180 (see Fig. 4).
  • An interior 182 of the body 170 is used to hold food, especially food containers with food received therein and / or beverage containers with drinks received therein and optionally of trays or grates on which such food containers, beverage containers or plates for holding food can be arranged , - -
  • the container 108 can be moved by means of a driving roller 184 (shown schematically in FIG. 1) via a base 186 and thus as a transporting carriage.
  • a driving roller 184 shown schematically in FIG. 1
  • the coolable interior 182 of the body 170 is accessible from outside the container 108 via an access opening 188 which is bounded by the bottom wall 172, the front wall 178, one of the side walls 176 and the top wall 174.
  • This access opening 188 can be closed by means of a door 190.
  • the door 190 is shown in FIG. 2 in a closed position in which the door 190 closes the access opening 188 of the body 170.
  • the door 190 is hinged to the body 170, particularly on the front wall 178 thereof, by hinges 192 about a vertical pivot axis.
  • the operating handle 196 is preferably fully received in an operating handle receptacle 202 of the door 190 when the door 190 is shown in FIG. 2 shown closed position. - -
  • the storage tank assembly 110 of the container 108 for storing a flowable refrigerant is shown in particular in FIGS. 3 to 5 and includes a pre-cooling tank 204 and a cold holding tank 206.
  • the Vorkühltank 204 serves the interior 182 of the container 108 during and / or after filling with the flowable brine with high cooling capacity as quickly as possible from an initial temperature, in particular an ambient temperature of, for example, about 30 ° C, to an operating temperature, for example + 4 ° C, to cool.
  • the cooling holding tank 206 serves to keep the interior space 182 and the refrigerated goods arranged therein at the operating temperature after the pre-cooling for a minimum cooling time of, for example, at least 48 hours.
  • the cooling holding tank 206 therefore has a lower cooling capacity than the pre-cooling tank 204 during the pre-cooling phase, but a significantly larger storage volume for the coolant and thus a much larger stored refrigeration energy than the Vorkühltank 204th
  • the pre-cooling tank 204 comprises a plurality of, for example three, vertically oriented wall tanks 208, which are arranged on the inner sides of the side walls 176 and the rear wall 180 of the body 170 and preferably extend substantially over the entire height and the entire width of these walls.
  • Each of these wall tanks 208 may include, for example, a front shell and a rear shell, which are connected to point or circular weld areas 210 by welding.
  • the cooling holding tank 206 comprises a horizontally oriented roof tank 212 which is arranged on the inside of the ceiling wall 174 and which preferably has a substantially cuboid shape. - -
  • the storage volume of the roof tank 212 for the brine is at least twice, preferably at least ten times, in particular at least twenty times, the total storage volume of the wall tanks 208.
  • Each of the wall tanks 208 and the roof tanks 212 has a cooling surface 214 facing the interior 182 to be cooled, via which the interior 182 of the tank 108 can be cooled by the stored coolant.
  • the cooling surface of the roof tank 212 is at most 50%, preferably at most 30%, in particular at most 10%, of the entire cooling surface of the wall tanks 208.
  • the ratio of cooling surface to storage volume in the wall tanks 208 is at least 80 m “1 , preferably at least 100 m " 1 , in particular at least 300 m “1 , for example approximately 360 m " 1 .
  • the ratio of the cooling area to the storage volume is at most 60 m.sup.- 1 , preferably at most 40 m.sup.- 1 , in particular at most 20 m.sup.- 1 , for example approximately 16 m "1 .
  • the wall tanks 208 are connected at their lower end regions via coolant tubes 216 to a cold carrier line 217, which in turn is connected to a, preferably self-closing, refrigerant valve 218 of the container 108. - -
  • the wall tanks 208 open into the roof tank 212 so that the roof tank 212 is in fluid communication with the wall tanks 208 such that the roof tank 212 can be filled with flowable brine through the wall tanks 208 and emptied of flowable brine.
  • the container 108 comprises a pressure compensation line 220, which is connected to a pressure compensation valve 222 of the container 108.
  • the pressure compensating valve 222 is preferably disposed in the vicinity of the refrigerant valve 218.
  • the pressure compensation line 220 opens into the roof tank 212, preferably in the region of its upper side.
  • the pressure compensating valve 222 is preferably formed as a self-closing valve.
  • the container 108 may also comprise a simpler pressure equalization valve 302, which is arranged directly on the roof tank 212.
  • Such a pressure compensating valve 302 may, for example, comprise a float element, in particular a float ball, which is moved away from a valve seat during emptying of the storage tank assembly 110 by the negative pressure arising in the roof tank 212 so that air from the environment of the container 108 can flow into the storage tank arrangement 110 , - -
  • the float member When filling the storage tank assembly 110, the float member is initially spaced from the valve seat so that air may escape from the storage tank assembly 110 until the float member floating on the refrigerant reaches the valve seat thereby closing the pressure compensation valve 302.
  • the pressure compensation valve 222 and the pressure equalization line 220 of the container 108 can be omitted, and accordingly in the filling system 106, the pressure compensation clutch 158, the pressure equalization line 160 with the check valve 162, the fluid collecting funnel 164 and the fluid line 166 with the Valve 168 omitted.
  • the wall tanks are preferably formed so that their height (vertical extent) is greater than their width (horizontal extent). This promotes the formation of a sustained strong free convection of the air in the interior 182 of the container 108 along the insides of the boundary walls of the interior 182.
  • This convection flow 224 of the air in the interior 182 is illustrated in FIG. 4 by the arrows labeled 224.
  • the wall tank 208 a which is arranged on the inside of the rear wall 180 of the body 170, are the front wall 178 and the door 190 of the container 108 opposite, where no wall tanks are arranged, so that the insides of the front wall 178 and the door 190 a the Wall tank 208 a opposite uncooled boundary surface 226 of the interior 182 form.
  • an air guiding arrangement 228 is arranged in the interior 182 of the container 108.
  • the air guiding arrangement 228 comprises an air guiding element 230, which is shown individually in FIG.
  • the air guide element 230 has, for example, the shape of a cake plate, with a central, for example substantially rectangular, air guide plate 232 and four of the edges of the air guide plate 232 upwardly projecting upwardly bent side walls 234, which are provided with air passage openings 236.
  • the air passage openings 236 of a side wall 234 may each have substantially the same cross sections and be arranged substantially equidistant from each other.
  • the air guide element 230 is preferably connected by means of a hinge 238 articulated to the roof tank 212 or to the body 170, so that the air guide element 230 can be folded down for cleaning purposes or for revision purposes. - -
  • the air guide element 230 In its operating position, the air guide element 230 is arranged so that the air guide plate 232 is aligned substantially horizontally and substantially parallel to the underside of the roof tank 212.
  • the in the operating state of the air guide assembly 228 of the uncooled boundary surface 226 of the interior 182 facing air passage openings 236 serve as inlet openings 242 for the entry of air from the usable area of the interior 182 in the area 244 between the air baffle 232 and the roof tank 212, while in the operating state of Air guide 228 serve the cooled boundary surfaces of the interior 182 facing air passage openings 236 as outlet openings 240 for the escape of air from the area 244 between the air baffle 232 and the roof tank 212 in the usable area of the interior 182.
  • the air guide assembly 228 directs the circulating air flowing into the area 244 between the air guide plate 232 and the roof tank 212 due to the free convection in the interior 182 such that it flows along the underside of the roof tank 212 without directly from this area 244 under the air baffle 232 arranged food to fall.
  • the air guide assembly 228 thus protects food stored vertically below the roof tank 212 from frost damage.
  • the air guide assembly 228 serves to protect the food disposed vertically below the roof tank 212 from the condensed water that forms on the underside of the roof tank 212.
  • the air guide plate 232 prevents this condensation can drip on the arranged under the air guide plate 232 food.
  • the condensate water dripping from the roof tank 212 onto the air guide plate 232 passes through the air passage openings 232 of the air guide element 230 past the food arranged vertically below the air guide plate 232 down onto the bottom wall 172 of the body 170.
  • a seal assembly 248 for sealing between the door 190 and the body 170 in the closed position of the door 190 is provided.
  • FIG. 8 A section through this seal arrangement 248 is shown in FIG. 8 in the closed state of the door 190 and in Fig. 7 in a slightly open state of the door 190 shown.
  • the sealing arrangement 248 comprises two sealing elements 249, namely a door sealing element 250 arranged on the door 190 and a body sealing element 252 arranged on the body 170.
  • the door seal member 250 revolves around the four lateral edges of the door 190 and is preferably formed substantially annularly closed.
  • the body sealing element 252 runs around the lateral edges of the bottom wall 172, one of the side walls 176, the top wall 174 and the front wall 178 of the body 170 and is preferably formed substantially annularly closed.
  • Each of the sealing elements 249 preferably has a cross-section which is essentially constant in its longitudinal direction 254 (at least outside the corner regions), which cross-section is shown in FIGS. 7 and 8 can be seen.
  • each sealing element 249 may comprise a sealing part 256, which performs the sealing function of the sealing element 249, and a holding part 258, with which the sealing element 249 is held on the door 190 or on the body 170.
  • the sealing part 256 comprises an elastically deformable hollow chamber 260 having an inner cavity 262 and a sealing surface 264 facing away from the holding part 258.
  • each sealing element 249 may in particular comprise a base part 266 and clamping ribs 268 projecting from the base part 266.
  • the base part 266 may have one or more inner cavities 270.
  • sealing member 256 and the holding part 258 of each sealing member 249 are preferably integrally formed with each other.
  • Each sealing element 249 is preferably at least partially, in particular substantially completely, made of a plastic material, in particular of an elastomeric plastic material, for example of a silicone material.
  • Each sealing element 249 is preferably detachably fixed to the door 190 or to the body 170.
  • the sealing arrangement 248 comprises two connection profiles 272, namely a door connection profile 274 and a body connection profile 276, which each have a seal receiving channel 278 for receiving the holding part 258 of a respective sealing element 249.
  • the door connection profile 274 connects an inner wall 280 of the door 190 to an outer wall 282 of the door 190.
  • the body connection profile 276 connects an inner wall 284 of the body 170 with an outer wall 286 of the body 170. - -
  • the inner walls 280 and 284 and the outer walls 282 and 286 are preferably formed of a metallic material, in particular of a stainless steel material. This material has a relatively high thermal conductivity.
  • connection profiles 272 are formed of a material with a lower thermal conductivity.
  • connection profiles 272 comprise a plastic material and are preferably formed essentially completely from a plastics material.
  • connection profiles 272 are formed at least partially, in particular substantially completely, from acrylonitrile-butadiene-styrene (ABS), since this plastic material has a particularly low thermal conductivity.
  • ABS acrylonitrile-butadiene-styrene
  • Edge regions of the inner walls 280 and 284 and the outer walls 282 and 286 are preferably screwed by means of fastening screws 287 with the respective associated connection profiles.
  • connection profiles 282 are thin-walled, with a maximum profile thickness of at most approximately 5 mm, preferably at most 3 mm, in particular at most approximately 2 mm, formed.
  • connection profiles 272 are designed such that the path from the outer wall 282, 286 of the door 190 or the body 190 through the respective connection profile 272 to the inner wall 280, 284 of the door 190 and the body 170 is as long as possible.
  • each of the connection profiles 272 has at least one bulge 288 and / or one or more bends 290. - -
  • the bulges 288 of the connection profiles 272 form the already mentioned seal receiving channels 278.
  • a sealing member 249 When assembling the sealing members 249 on the door 190 and on the body 170, a sealing member 249 is pushed by an operator by hand with the sealing member 256 first into the seal receiving channel 278 of the door connecting section 274 and the body connecting section 276, respectively.
  • the clamping ribs 268 of the holding part 258 of the sealing element 249 are elastically deformed, so that the clamping ribs 268 abut the opposite side walls 292 of the respective seal receiving channel 278 and the sealing element 249 by adhesion, in particular due to the static friction between the clamping ribs 268 and the side walls 292 of the seal-receiving channel 278, is held in the seal-receiving channel 278.
  • the sealing part 256 of the door sealing element 250 protrudes toward the body 170 in the closed position of the door 190 and lies with its sealing surface 264, with deformation of the hollow chamber 260, flat against a sealing surface 294 of the body connection profile 276 (see FIG ).
  • the sealing member 256 of the body sealing member 252 protrudes in the closed position of the door 190 toward the door 190 and lies with its sealing surface 264, under elastic deformation of the hollow chamber 260, to a sealing surface 294 of the door connection profile 274.
  • the sealing surfaces 264 of the sealing elements 249 are thus under elastic bias to the sealing surfaces 294 of the body connecting profile 276 and the door connecting profile 274, so that a fluid channel 296 between the interior 182 of the container 108th
  • the sealing elements 249 of the sealing arrangement 248 are spaced apart from one another such that between the sealing elements 249 in the closed state of the door 190, an air chamber 298 sealed by the sealing elements 249 both to the interior 182 and to the exterior space 246 is formed.
  • the formed between the hollow chambers 260 air chamber 298, the heat insulation of the seal assembly 248 and thus the thermal insulation of the container 108 is significantly improved overall.
  • the sealing surfaces 294 on the door connection profile 274 and on the body connection profile 276 are preferably transverse to one another, in particular substantially perpendicular, in the closed state of the door 190.
  • the thermal insulation of the container 108 which is arranged in the intermediate space between the inner wall 280 of the door 190 and the outer wall 282 of the door 190 and in the space between the inner wall 284 of the body 170 and the outer wall 286 of the body 170, preferably comprises vacuum insulation panels ("vacuum insulated panels ", VIP for short).
  • vacuum insulation panels are highly efficient thermal insulation materials that exploit the principle of vacuum thermal insulation.
  • Such vacuum insulation panels may comprise a porous core material serving as a support body and a gas-tight enclosure preventing gas entry into the vacuum insulation panel.
  • such a vacuum insulating a thermal conductivity of less than 0.004 W m "1 - '' to 1.
  • the thermal insulation of the container 108 may comprise another heat-insulating material, in particular a heat-insulating plastic material, for example a polyurethane material.
  • a filling of the container 108 (with prior emptying of the spent refrigerant present in the storage tank arrangement 110 of the container 108) is carried out as follows:
  • the container 108 is connected to the filling system 106.
  • the pressure compensation clutch 158 of the filling system 106 is connected to the pressure compensation valve 222 of the container 108.
  • the refrigerant coupling 138 of the filling system 106 is connected to the refrigerant valve 218 of the container 108.
  • valves 218 and 222 of the container 108 By connecting the valves 218 and 222 of the container 108 with the associated couplings 158 and 138 of the filling system 106, the said valves of the container 108 are preferably opened automatically.
  • the multi-way valve 132 of the filling system 106 is brought into an emptying position, in which the multi-way valve 132 can be flowed through by the second port 134 to the third port 146 and the first port 130 is separated from the two ports, so that the refrigerant line 136 in fluid communication with the Fluid line 148 is. - -
  • the drain pump 149 is put into operation, whereby the emptying of the wall tanks 208 and the roof tank 212 of the storage tank assembly 110 of the container 108 is started.
  • the drain pump 149 is a self-priming pump.
  • the completely molten, warm and thus spent refrigerant from the storage tank assembly 110 is exhausted from the storage tank assembly 110 and via the brine line 217 and the brine valve 218 of the container 108, the brine clutch 138, the brine line 136, the multi-way valve 132, the fluid line 148 pumped with the drain pump 149 and the fluid discharge line 152 into the fluid reservoir 104.
  • the emptying phase ends after a predetermined emptying period or after reaching a measured value, which signals that the emptying is completed.
  • Such a measured value can be, for example, the motor current of the drain pump 149 or the measured value of a flow meter in the coolant line 136, in the fluid line 148 or in the fluid discharge line 152.
  • a flow meter can work, for example, according to the Coriolis principle.
  • a controller (not shown) of the filler 106 switches the multiway valve 132 to a fill position in which the passage from the first port 130 of the multiway valve 132 to the second port 134 is open and the passage from the third port 146 to the other connections of the multi-way valve 132 is closed, so that now the refrigerant carrier line 136 is in fluid communication with the refrigerant line 126 of the filling system 106, in which the filling pump 128 is arranged.
  • the filling pump 128 is put into operation, whereby the filling process is started.
  • fresh, cold, flowable brine from the circulation line 118 through the brine supply line 122, the refrigerant line 126 with the filling pump 128, the multi-way valve 132, the refrigerant brine 136, the brine clutch 138, the brine valve 218, the brine line 217th and the brine tubes 216 are pumped into the wall tanks 208 of the storage tank assembly 110 and, with increasing fill level in the storage tank assembly 110, into the roof tank 212 of the tank 108.
  • the fresh refrigerant displaces the air present in the storage tank arrangement 110 of the container 108, which flows out of the roof tank 212 via the pressure equalization line 220, the pressure compensation valve 222, the pressure compensation clutch 158 and the pressure equalization line 160 of the filling system 106 at the end 159 of the pressure equalization line 158.
  • the filling phase ends after a predetermined filling time or when a measured value is reached, which signals that the filling of the storage tank arrangement 110 has been completed.
  • Such a measured value may be, for example, the motor current of the filling pump 128, the measured value of a flow meter arranged in the cold carrier line 136 or in the cold carrier line 126, or the measured value of the pressure measuring device 142 arranged, for example, in the cold carrier line 136.
  • An optionally used flow meter can work in particular according to the Coriolis principle.
  • the refrigerant coupling 138 of the filling system 106 is separated from the refrigerant valve 218 of the container 108.
  • the pressure compensation clutch 158 of the filling system 106 is separated from the pressure compensation valve 222 of the container 108.
  • the clutches 138 and 158 of the filling system 106 can also be driven automatically or, in particular in the form of a complete coupling unit 300.
  • the multiway valve 132 can now be brought back into the emptying position, in which the second port 134 and the third port 146 of the multiway valve 132 are in fluid communication with each other. - -
  • the filler 106 is ready for filling (with prior emptying) of the next container 108.
  • the valve 168 is closed during the discharge phase and the filling phase. Due to the changing flow direction in the pressure equalization line 160 of the filling system 106 and in the pressure equalization line 220 of the container 108, there is the possibility that liquid refrigerant (fluid) is transported out of the storage tank arrangement 110 in small quantities together with the air. This fluid is collected in the open fluid catchment funnel 164.
  • the fluid collecting funnel 164 is emptied by opening the valve 168 and at the same time putting the evacuation pump 149 into operation.
  • the fluid from the fluid collecting funnel 164 thus passes into the fluid collecting container 104 and from there to the refrigerant generator.
  • the cooling of the interior 182 and the container 108 takes place during and after the filling of the storage tank assembly 110 with fresh flowable refrigerant in two consecutive cooling phases with different cooling capacity, namely in a pre-cooling phase with high cooling capacity and a cooling maintenance phase with low cooling capacity.
  • the wall tanks 208 are cooled by the fresh refrigerant flowing through them very quickly to almost the feed temperature of the refrigerant. After the end of the filling still refrigerant remains in the wall tanks 208 available. This ensures that the wall tanks 208 remain cold even after the end of the filling phase. - -
  • the cooling surfaces of the inner space 182 cooled by the refrigerant preferably correspond to at least half of the boundary surfaces of the inner space 182 in order to achieve a large cooling effect.
  • the interior space 182 of the container 108 is rapidly, preferably within at most about 30 minutes, from an outlet temperature, in particular, by means of the fresh refrigerant in the wall tanks 208 forming the pre-cooling tank 204 and in the roof tank 212 forming the cooling holding tank 206 an ambient temperature of, for example, about 30 ° C, cooled to the use temperature of the container 108, for example, + 4 ° C.
  • the interior 182 is cooled mainly by the wall tanks 208, which have a larger cooling surface than the roof tank 212.
  • the roof tank 212 also becomes cold immediately; due to its relatively small cooling surface, however, the roof tank plays only a minor role in the cooling of the interior 182 during the pre-cooling phase relative to the wall tanks 208.
  • the wall tanks 218 are preferably dimensioned such that, after the end of the filling process, there is still sufficient coolant to cool the uncooled boundary surfaces of the interior 182 of the container 108 from the maximum starting temperature to the desired operating temperature of the container 108. After the end of the cooling process, the pre-cooling phase is completed upon reaching the operating temperature of the container 108.
  • the exit temperature of the container 108 is lower than the maximum exit temperature for which the container is designed, the food present in the interior 182 of the container 108 will be further cooled even after the service temperature has been reached. Since the ratio of the amount of refrigerant in the wall tanks 208 to the amount of food present in the interior 182 of the container 108 is usually very small, there is no danger that the food being transported in the container 108 will be overcooled or freeze damaged.
  • the second phase of the cooling process namely the substantially stationary temperature-holding phase of the cooling process, begins.
  • the wall tanks 208 forming the pre-cooling tank 204 behave like normal inactive walls, thereby significantly reducing the cooling capacity of the tank 108.
  • the roof tank 212 which forms the cold holding tank 206 of the container 108, with its comparatively low cooling capacity, is now sufficient to keep the interior space 182 sufficiently cold, that is to say at the intended operating temperature.
  • the cooling surfaces cooled by the flowable cooling medium must compensate for the heat input from the environment of the container 108 and be in equilibrium at the desired operating temperature in the interior 182 of the container 108.
  • the roof tank 212 is in heat-conducting connection with additional, in particular horizontally or vertically aligned, cooling plates or cooling fins (not shown), which are cooled by the roof tank 212 and in turn cool the interior 182 of the container 108 , - -
  • the hold-down phase of the container 108 ends when the cooling capacity of the roof tank 212 is no longer sufficient to keep the interior 182 of the container at the intended service temperature.
  • the storage tank assembly 110 and the thermal insulation of the container 108 are designed so that the cooling hold phase is completed after at least 48 hours.

Abstract

L'invention concerne un récipient servant à refroidir et/ou à maintenir au froid un produit à réfrigérer, en particulier des denrées alimentaires, le récipient comprenant un corps isolé thermiquement, une porte (190) isolée thermiquement et un système d'étanchéité (248) qui, lorsque la porte est fermée, rend étanche un canal de fluide (296) entre un espace intérieur refroidi (182) du récipient (108) et un espace extérieur (246) du récipient. L'invention vise à ce que le système d'étanchéité permette de maintenir au froid le plus longtemps possible le produit à réfrigérer dans l'espace intérieur du récipient, et assure une bonne isolation thermique même en cas d'endommagements individuels locaux du système d'étanchéité. A cet effet, le système d'étanchéité comprend plusieurs éléments d'étanchéité, étanchéifiant le canal de fluide, par lesquels, lorsque la porte est fermée, le canal de fluide est divisé en deux ou plus de deux chambres (260, 298) sensiblement étanches au fluide successives sur la trajectoire du fluide parcourant le canal de fluide de l'espace intérieur vers l'espace extérieur.
PCT/EP2014/050914 2013-01-18 2014-01-17 Récipient permettant de refroidir et/ou de maintenir au froid des produits à réfrigérer WO2014111530A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14700732.2A EP2946156A1 (fr) 2013-01-18 2014-01-17 Récipient permettant de refroidir et/ou de maintenir au froid des produits à réfrigérer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013200748.5 2013-01-18
DE102013200748.5A DE102013200748A1 (de) 2013-01-18 2013-01-18 Behälter zum Kühlen und/oder Kühlhalten eines Kühlguts

Publications (1)

Publication Number Publication Date
WO2014111530A1 true WO2014111530A1 (fr) 2014-07-24

Family

ID=49989787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/050914 WO2014111530A1 (fr) 2013-01-18 2014-01-17 Récipient permettant de refroidir et/ou de maintenir au froid des produits à réfrigérer

Country Status (3)

Country Link
EP (1) EP2946156A1 (fr)
DE (1) DE102013200748A1 (fr)
WO (1) WO2014111530A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49145262U (fr) * 1973-04-12 1974-12-14
JPS5015067U (fr) * 1973-06-05 1975-02-17
JPS5177659U (fr) * 1974-12-16 1976-06-18
JPS5177660U (fr) * 1974-12-16 1976-06-18
JPS5815188U (ja) * 1981-07-22 1983-01-29 株式会社日立製作所 二重ガスケツト構造の冷蔵庫
DE3505758A1 (de) * 1984-02-23 1985-08-29 Koch Ag Tuere fuer kuehlschraenke und dergleichen
JPH10267516A (ja) * 1997-03-28 1998-10-09 Hoshizaki Electric Co Ltd 冷却貯蔵庫のドアシール構造

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8222009V0 (it) * 1982-05-27 1982-05-27 Eurodomestici Ind Riunite Apparecchio refrigerante con dispositivo di tenuta a labirinto.
US5297360A (en) * 1992-08-20 1994-03-29 General Electric Company Refrigerator cabinet with combination sealing arrangement
JPH06159911A (ja) * 1992-11-27 1994-06-07 Hitachi Ltd 組合せ冷蔵庫
BR7903121U (pt) * 1999-12-21 2001-07-24 Multibras Eletrodomesticos Sa Arranjo de gaxeta para porta de gabinete de aparelhos de refrigeração
JP2005207689A (ja) * 2004-01-23 2005-08-04 Toshiba Corp 冷蔵庫

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49145262U (fr) * 1973-04-12 1974-12-14
JPS5015067U (fr) * 1973-06-05 1975-02-17
JPS5177659U (fr) * 1974-12-16 1976-06-18
JPS5177660U (fr) * 1974-12-16 1976-06-18
JPS5815188U (ja) * 1981-07-22 1983-01-29 株式会社日立製作所 二重ガスケツト構造の冷蔵庫
DE3505758A1 (de) * 1984-02-23 1985-08-29 Koch Ag Tuere fuer kuehlschraenke und dergleichen
JPH10267516A (ja) * 1997-03-28 1998-10-09 Hoshizaki Electric Co Ltd 冷却貯蔵庫のドアシール構造

Also Published As

Publication number Publication date
DE102013200748A1 (de) 2014-07-24
EP2946156A1 (fr) 2015-11-25

Similar Documents

Publication Publication Date Title
DE112004003073B4 (de) Kühlschrank
DE102006044847A1 (de) Behälter zum Kühlen und/oder Kühlhalten von Speisen und/oder Getränken
DE102013002555A1 (de) Verfahren und Vorrichtung zur Vorkonditionierung von Latentwärmespeicherelementen
EP2198227A2 (fr) Appareil de réfrigération
DE102011006807A1 (de) Kombinationskältegerät
DE2807352A1 (de) Kuehlgeraet
CH402906A (de) Kühltruhe
EP3155332B1 (fr) Appareil de réfrigération et/ou de congélation
EP2946150A1 (fr) Contenant et procédé pour réfrigérer et/ou maintenir au froid des produits réfrigérés
EP2946151A2 (fr) Contenant servant à refroidir et/ou à maintenir au frais des produits réfrigérés et système et procédé de remplissage d'un tel contenant
EP3155328B1 (fr) Appareil de froid et/ou de congélation
WO2014111530A1 (fr) Récipient permettant de refroidir et/ou de maintenir au froid des produits à réfrigérer
DE4411411A1 (de) Kaltluftsammeleinrichtung für ein Kühlgerät
DE102017130722A1 (de) Flugzeugbordküche
EP3371530B1 (fr) Réfrigérateur et/ou congélateur
DE102015006559A1 (de) Wärmeisoliertes Behältnis
DE3334145A1 (de) Unterteilung fuer kuehlcontainer
DE102014017799A1 (de) Kühl- und/oder Gefriergerät
AT379889B (de) Unterteilung fuer kuehlcontainer
DE3828912A1 (de) Fckw-entsorgung von als abfall anfallenden kuehlgeraeten
DE102016202677A1 (de) Haushaltskältegerät, insbesondere No-Frost-Haushaltskältegerät, mit Getränkegerät, welches thermisch mit dem Kühlfach und dem Gefrierfach gekoppelt ist
DE102013111813A1 (de) Transportabler Kühlraum
DE102016202679A1 (de) Mischgetränk-Erzeugungsgerät, Haushaltskältegerät mit einem derartigen Mischgetränk-Erzeugungsgerät sowie Verfahren zum Zubereiten eines Mischgetränks
AT7341U1 (de) Kombigerät zur aufbereitung von fertigmahlzeiten auf tabletts für gemeinschaften
DE10201591A1 (de) Vorrichtung und Verfahren multifunktional anwendbarer Kältespeicherplatten

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14700732

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2014700732

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE