WO2016066150A1 - Meuble réfrigéré - Google Patents

Meuble réfrigéré Download PDF

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Publication number
WO2016066150A1
WO2016066150A1 PCT/DE2014/200602 DE2014200602W WO2016066150A1 WO 2016066150 A1 WO2016066150 A1 WO 2016066150A1 DE 2014200602 W DE2014200602 W DE 2014200602W WO 2016066150 A1 WO2016066150 A1 WO 2016066150A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
air
refrigerated
outlet
refrigerator according
Prior art date
Application number
PCT/DE2014/200602
Other languages
German (de)
English (en)
Inventor
Steffen Schwarz
Original Assignee
Bonotos Kaeltetechnik Gmbh
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 Bonotos Kaeltetechnik Gmbh filed Critical Bonotos Kaeltetechnik Gmbh
Priority to US15/521,071 priority Critical patent/US20170340141A1/en
Priority to PCT/DE2014/200602 priority patent/WO2016066150A1/fr
Publication of WO2016066150A1 publication Critical patent/WO2016066150A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0443—Cases or cabinets of the open type with forced air circulation
    • A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D23/02—Doors; Covers
    • F25D23/023—Air curtain closures

Definitions

  • the invention relates to a refrigerated cabinet, in particular refrigerated shelves, freezer, cooling island or refrigerated display, for storage and / or presentation of refrigerated goods, with a cooling space for the refrigerated goods and a channel assigned to the cooling chamber for supplying air, wherein two air flows at different flow rates from an outlet can flow out of the channel, which form a double protective air curtain in front of an access to the refrigerator.
  • a refrigerator with a cooling space for the refrigerated goods and a channel associated with the cooling chamber for the supply of air is known for example from DE 34 14 033 A1.
  • the refrigeration unit shown here is a refrigerated shelf in which cooling air in a channel on the rear wall of the cabinet is directed upwardly into a front portion of the refrigerator shelf and is discharged from an outlet in front of the refrigerator compartment to form a protective air curtain.
  • a protective air curtain Through such a protective air curtain, a heat exchange between the cold room and a warmer environment is reduced so much that a safe storage and / or presentation of refrigerated goods in the cooling space is possible.
  • the air streams emerging from the duct tend to flow into the cold room rather than forming a protective air curtain in front of the cold room.
  • This tendency is counteracted by the creation of additional supporting air vents, which are formed by air flows flowing out of the rear wall of the cooling space into the cooling space, which are intended to prevent the air flows forming the protective air curtain from penetrating into the cooling space.
  • Care is taken to ensure that these supporting air curtains are generated from as laminar flows as possible in order to keep the air flows of the protective air veil as safe as possible out of the cold room.
  • the disadvantage of these laminar flows is that their cooling effect, which is also desired and likewise desired, is not very good, since these laminar streams of support air show only a short interaction time with the material to be cooled. In other words, the supporting air curtain flows too fast and too straight past the refrigerated goods in order to exert an effective cooling effect on the refrigerated goods.
  • the known refrigeration unit is therefore disadvantageous in terms of energy, because additional as laminar flowing support air curtain must be generated by the cooling room and out of the refrigerator for the production of a safe and along the entire refrigerator reliably flowing protective air curtain, but due to their desired laminarity do not cause a particularly effective cooling of the refrigerated goods. As a result, a great deal of energy has to be applied for the safe cooling of the refrigerated goods.
  • the present invention is therefore the object of a cooling cabinet of the type mentioned in such a way and further, that an effective and energy-saving cooling of the cooling material is made possible with structurally simple means.
  • the above object is achieved by a refrigerated cabinet with the features of claim 1. Thereafter, the refrigerated cabinet is configured and developed such that the channel has an element acting on the supplied air in this way. indicates that a split of the supplied air is realized in the two air flows with different flow velocities through the element.
  • the channel has such an effect on the supplied cooling air element that by this element on the one hand a division of the supplied air into two air flows and beyond also the different flow velocities of the two air flows are generated. It is in a structurally simple way on the one hand no longer necessary to realize a channel with two separate air ducts to perform the two required for a double protective air curtain air flows. It suffices in a structurally simple way a channel with a single air duct and a placed at a suitable location element.
  • This design of the channel with only one air duct also has advantages in terms of hygienic requirements, since an easier cleaning of the channel is made possible with only one air duct. Furthermore, it has been shown that this design of the channel with a division into the two air flows only at the element leads to a safer and quieter air flow. Finally, it has been shown that the inventive design of the channel with the element acting on the supplied air leads to a laminar over a relatively long distance flow of the protective air curtain, so that in previous cooling furniture required support air curtain to a much lesser extent or almost no longer necessary to maintain the protective air curtain in the required manner. In other words, supporting air curtains no longer have to be conducted as tightly laminar as is required with conventional refrigerated cabinets.
  • the element can be arranged in the channel or in the region of the outlet of the channel.
  • the arrangement in the channel provides an externally protected and effective arrangement of the element. Depending on the requirements, this arrangement may be made in the area of the outlet.
  • the element can be designed like a wing using the Bernoulli effect.
  • a wing-like design of the element ensures, on the one hand, a reliable division of the air flowing past the element into two air flows and, on the other hand, a reliable generation of different flow velocities of the air flows on the two sides of the wing-like element. Due to the air pressure differences generated by the wing-like element on the different sides of the wing-like element resulting from the individual design of the element conditional differences in the flow velocities of the two air currents.
  • the wing-like element can be virtually like a wing - for example, an aircraft - be formed and act.
  • the element can be arranged relative to the channel adjustable and / or relative to the channel pivotable about an axis and / or displaceable relative to the channel.
  • pivoting or shifting Position different flow velocities and a different flow behavior of the two air flows can be realized.
  • the axis about which the element can be pivoted can be arranged substantially perpendicular to the flow directions of the air flows.
  • the element can have a plurality of sections which can be set and / or pivoted relative to one another.
  • the element can be designed or shaped in an advantageous manner within the scope of the adjustability of the sections - individually. An adaptation to a wide variety of applications is possible.
  • a guide device for parallel guidance of the supplied air can be arranged in the channel in the direction of flow in front of the element.
  • a guide device can be arranged in the channel or at the outlet or after the outlet of the channel, for the parallel guidance of the two air flows, viewed downstream of the element.
  • At least one of the guide devices arranged in front of and / or behind the element can have a plurality of planar guide elements arranged parallel to one another.
  • Such planar guide elements offer a particularly simple and secure parallel guidance of the air flowing past them.
  • At least one of the two guide devices arranged in front of and / or behind the element can be constructed from a plurality of individual sections. In that regard, a modular structure of the guide devices can be realized to accommodate a wide variety of requirements and application situations.
  • the channel can have at least one further outlet for the supplied air which opens into the cooling space, the at least one further outlet being designed such that air flowing into the cooling space is essentially turbulent and preferably a supporting air curtain for the air Forms protective air curtain.
  • the inventive advantage of a particularly far-reaching laminar flow in the protective air curtain through the use of the element - with the turbulent flow in the supporting air curtain a particularly effective cooling of the cooling material can be achieved. Due to the turbulent flow, a longer-lasting and therefore safer interaction between the air and the refrigerated goods for cooling the refrigerated goods is achieved. This can save considerable amounts of energy for cooling the chilled goods.
  • the refrigerated cabinet according to the invention can be both a refrigerated cabinet with its own liquefaction unit - a so-called plug-in refrigerated cabinet - and a refrigerated cabinet with a connection to a central refrigeration unit with, for example, a composite tube network.
  • Fig. 1 is a schematic side view of a conventional refrigerator in the form of a cooling rack
  • FIG. 2 is a schematic side view, partially, a channel of a first embodiment of a cooling cabinet according to the invention
  • FIG. 3 is a schematic side view, partially, a channel of a second embodiment of a cooling cabinet according to the invention
  • FIG. 4 is a schematic side view, partially, a channel of a third embodiment of a cooling cabinet according to the invention.
  • FIG. 5 is a schematic side view, partially, a channel of a fourth embodiment of a cooling cabinet according to the invention.
  • FIG. 10 is a schematic side view of a refrigerated cabinet in the form of a
  • FIG. 1 1 in a schematic side view of a refrigerated cabinet in the form of a cabinet and
  • FIG. 12 is a schematic side view of a refrigerated cabinet in the form of a
  • Fig. 1 shows a schematic side view of a conventional refrigerator in the form of a cooling rack.
  • Such refrigerated cabinets are used for storage and / or presentation of refrigerated goods.
  • the refrigerator has a cooling space 1 for the refrigerated goods, wherein in the refrigerator 1 more shelves 7 are arranged for refrigerated goods.
  • the refrigerator 1 is associated with a channel 2 for supplying air.
  • the air is substantially flowed from below into the channel 2 and can be discharged in the form of two air flows at different flow rates from an outlet 3 of the channel 2.
  • the flow direction is indicated by an arrow 5.
  • the protective air curtain extends in front of an access 6 to the cooling chamber 1 in order to suppress heat exchange with the warmer surroundings of the cooling cabinet.
  • the airflows flow permanently from the top of the refrigerated shelf to the lower portion of the refrigerator shelf and are collected there to be recirculated to the channel 2. After collecting, the air flows are cooled, so that the air flows with a lower temperature flow out of the channel 2 than they are recovered at the bottom.
  • the duct 2 according to the enlarged illustration of FIG. 2 is equipped with an element 8 acting on the supplied air in such a way that a division the supplied air is realized in the two air flows with different flow velocities through the element 8 itself.
  • the supplied through the channel 2 air is divided only at the element 8 in the two air currents, due to the special design of the Elements 8 have different flow velocities.
  • the element 8 has a substantially convexly curved upper side and a substantially concavely curved lower side. The flow rate is higher at the top than at the bottom.
  • the element 8 extends transversely to the channel 2 along its entire width.
  • the channel 2 is formed with a substantially rectangular cross section, so that a protective air curtain along the entire width of the channel 2 can be generated.
  • the element 8 is arranged in the channel 2.
  • the element 8 is wing-like, taking advantage of the Bernoulli effect.
  • the element 8 is arranged pivotable about an axis 9. As a result, the position of the generated air flows can be changed in a simple manner.
  • the axis 9 is arranged perpendicular to the flow direction of the supplied air. Furthermore, in the exemplary embodiment shown here, the axis 9 extends in a horizontal direction and perpendicular to the image plane of FIG. 2, which shows a side view of the upper region of the channel 2.
  • a guide means 10 for parallel guidance of the supplied air is arranged.
  • the parallel guidance of the supplied air makes it possible to produce a laminar flow from the two air flows which reaches far beyond the outlet 3.
  • the guide device 10 has three individual sections 10 in the embodiment shown here.
  • a guide device 1 1 in the channel 2 in the region of the outlet 3 is arranged.
  • the guide devices 10 and 1 1 have a plurality of planar guide elements 12 arranged parallel to one another.
  • FIGS. 3 to 5 each show in a schematic and enlarged side view a channel 2 of a second, third and fourth embodiment of a cooling cabinet according to the invention with an arranged in the channel 2 element 8.
  • the element 8 is fixedly arranged in the channel 2 and not pivotable about an axis.
  • the exemplary embodiments shown in FIGS. 3 to 5 differ from the exemplary embodiment shown in FIG. 2 by the different configuration of the guide device 10, which leads the air supplied in front of the element 8 in the direction of flow.
  • the second embodiment according to FIG. 3 has a guide device 10 formed from a single section 10.
  • the guide devices 10 according to the third and fourth embodiment in FIGS. 4 and 5 have three or five individual sections 10. When selecting the number of individual sections 10 is to be based on the particular application. Basically, more individual sections 10 mean a more secure parallel guidance of the supplied air, wherein the flow resistance increases due to the greater number of individual sections 10 in the channel 2.
  • the channel 2 - in addition to the outlet 3 - have at least one further opening 13 opening into the cooling chamber 1 outlet for the supplied air.
  • This outlet 13 is designed such that air flowing into the cooling chamber 1 is substantially turbulent and preferably forms a supporting air curtain for the protective air curtain.
  • FIGS. 6 to 9 different configurations of such outlets 13 are shown, which lead to turbulent flows into the cooling space 1.
  • 6 shows an arrangement of crescent-shaped outlets 13
  • FIG. 7 shows an arrangement of circular outlets 13 with diameters of different sizes
  • FIG. 8 shows an arrangement of rod-shaped outlets 13
  • FIG. 9 shows an arrangement of star-shaped outlets 13.
  • Such outlets 13 can be formed for example in the rear wall of a cooling room 1.
  • 10 shows a schematic side view of a conventional refrigerated display counter, which could have a channel 2 with an element 8 according to the invention, in order to achieve effective and energy-saving cooling of the refrigerated product with structurally simple means.
  • Fig. 1 1 shows a schematic side view of a conventional refrigerator 1 1 in the form of a freezer. Again, an element 8 may be arranged in the channel 2.
  • Fig. 12 shows a schematic side view of a conventional refrigerator in the form of a combination set of refrigerated shelves and freezer. Again, an element 8 may be arranged in the channel 2.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

L'invention concerne un meuble réfrigéré, en particulier un rayonnage réfrigéré, un congélateur, un îlot réfrigéré ou une vitrine réfrigérée, servant à la conservation et/ou à la présentation de produits à réfrigérer. Le meuble réfrigéré comporte un compartiment de réfrigération (1) pour les produits à réfrigérer et une conduite (2) associée au compartiment de réfrigération (1) pour l'amenée d'air. Deux flux d'air présentant des vitesses d'écoulement différentes peuvent s'écouler par une sortie (3) du canal (2) et forment un double rideau d'air de protection en amont d'un accès (6) au compartiment de réfrigération (1). L'invention vise à permettre une réfrigération efficace et économe en énergie de produits à réfrigérer, par des moyens simples en termes de conception. À cet effet, le meuble réfrigéré est configuré de telle manière que le canal (2) présente un élément (8) agissant sur l'air amené de telle manière que l'élément (8) réalise une répartition de l'air amené dans les deux flux d'air présentant des vitesses d'écoulement différentes.
PCT/DE2014/200602 2014-10-28 2014-10-28 Meuble réfrigéré WO2016066150A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/521,071 US20170340141A1 (en) 2014-10-28 2014-10-28 Refrigeration unit
PCT/DE2014/200602 WO2016066150A1 (fr) 2014-10-28 2014-10-28 Meuble réfrigéré

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2014/200602 WO2016066150A1 (fr) 2014-10-28 2014-10-28 Meuble réfrigéré

Publications (1)

Publication Number Publication Date
WO2016066150A1 true WO2016066150A1 (fr) 2016-05-06

Family

ID=52394021

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200602 WO2016066150A1 (fr) 2014-10-28 2014-10-28 Meuble réfrigéré

Country Status (2)

Country Link
US (1) US20170340141A1 (fr)
WO (1) WO2016066150A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019102182A1 (fr) * 2017-11-22 2019-05-31 Wirth Research Limited Procédé de configuration d'une vitrine réfrigérée ouverte
CN113795176A (zh) * 2019-05-10 2021-12-14 艾若弗尔能源有限公司 冷柜的改进
CN116892808A (zh) * 2023-09-11 2023-10-17 河南新飞电器集团有限公司 一种冷冻速冻移动冷库

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016114336B3 (de) 2016-08-03 2018-01-18 Aht Cooling Systems Gmbh Kühlmöbel
US11576501B2 (en) * 2019-11-08 2023-02-14 Hill Phoenix, Inc. Guide vane for refrigerated display case

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JPS57144861A (en) * 1981-03-04 1982-09-07 Sanyo Electric Co Air curtain formation apparatus
DE3414033A1 (de) 1984-04-13 1985-10-17 Linde Ag, 6200 Wiesbaden Kuehlregal
JPH03271683A (ja) * 1990-03-22 1991-12-03 Sanyo Electric Co Ltd 低温ショーケース
JPH11183013A (ja) * 1997-12-19 1999-07-06 Fuji Electric Co Ltd 冷気循環式オープンショーケース
US20090223237A1 (en) * 2005-02-16 2009-09-10 Hussmann Corporation Air louver for refrigerated display case
EP2843332A2 (fr) * 2013-08-27 2015-03-04 bonotos Kältetechnik GmbH Meuble frigorifique

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DE10007154A1 (de) * 2000-02-17 2001-08-23 Bayerische Motoren Werke Ag Vorrichtung zur Steuerung einer aus einem Luftführungskanal einer Belüftungs- und/oder Klimaanlage austretenden Luftströmung, insbesondere für Fahrzeuge
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CA2831395A1 (fr) * 2011-03-30 2012-10-04 Flodesign Wind Turbine Corp. Turbine a fluide equipee de segments d'enveloppe a pas variable
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US9737156B2 (en) * 2013-12-23 2017-08-22 Hussmann Corporation Zone cooling in a refrigerated merchandiser
US9084496B1 (en) * 2014-05-09 2015-07-21 Heatcraft Refrigeration Products Llc Refrigerated display case
GB201411474D0 (en) * 2014-06-27 2014-08-13 Wirth Res Ltd An open refrigerated display case and a flow stabilising device
US10765231B2 (en) * 2016-02-11 2020-09-08 Hill Phoenix, Inc. Discharge air straightener

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203337A (en) * 1961-02-27 1965-08-31 Dual Jet Refrigeration Company Refrigerated display case and elements thereof
JPS57144861A (en) * 1981-03-04 1982-09-07 Sanyo Electric Co Air curtain formation apparatus
DE3414033A1 (de) 1984-04-13 1985-10-17 Linde Ag, 6200 Wiesbaden Kuehlregal
JPH03271683A (ja) * 1990-03-22 1991-12-03 Sanyo Electric Co Ltd 低温ショーケース
JPH11183013A (ja) * 1997-12-19 1999-07-06 Fuji Electric Co Ltd 冷気循環式オープンショーケース
US20090223237A1 (en) * 2005-02-16 2009-09-10 Hussmann Corporation Air louver for refrigerated display case
EP2843332A2 (fr) * 2013-08-27 2015-03-04 bonotos Kältetechnik GmbH Meuble frigorifique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019102182A1 (fr) * 2017-11-22 2019-05-31 Wirth Research Limited Procédé de configuration d'une vitrine réfrigérée ouverte
CN113795176A (zh) * 2019-05-10 2021-12-14 艾若弗尔能源有限公司 冷柜的改进
CN116892808A (zh) * 2023-09-11 2023-10-17 河南新飞电器集团有限公司 一种冷冻速冻移动冷库
CN116892808B (zh) * 2023-09-11 2023-12-01 河南新飞电器集团有限公司 一种冷冻速冻移动冷库

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