EP1762159B1 - Verfahren und Vorrichtung zur Verbesserung des Betriebs von Kühlmöbeln - Google Patents

Verfahren und Vorrichtung zur Verbesserung des Betriebs von Kühlmöbeln Download PDF

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Publication number
EP1762159B1
EP1762159B1 EP06291292A EP06291292A EP1762159B1 EP 1762159 B1 EP1762159 B1 EP 1762159B1 EP 06291292 A EP06291292 A EP 06291292A EP 06291292 A EP06291292 A EP 06291292A EP 1762159 B1 EP1762159 B1 EP 1762159B1
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EP
European Patent Office
Prior art keywords
furniture
air
piece
path
aisle
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.)
Not-in-force
Application number
EP06291292A
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English (en)
French (fr)
Other versions
EP1762159A1 (de
Inventor
Rémy Rival
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.)
Johnson Controls Enterprises SAS
Original Assignee
Johnson Controls MC International SA
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Filing date
Publication date
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Application filed by Johnson Controls MC International SA filed Critical Johnson Controls MC International SA
Publication of EP1762159A1 publication Critical patent/EP1762159A1/de
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47FSPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00Show cases or show cabinets
    • A47F3/04Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439Cases or cabinets of the open type
    • A47F3/0443Cases or cabinets of the open type with forced air circulation
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47FSPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00Show cases or show cabinets
    • A47F3/04Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0482Details common to both closed and open types
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/04Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/22Refrigeration systems for supermarkets

Definitions

  • the invention relates to a thermal destratification process for increasing the temperature of an aisle lined unilaterally or bilaterally of refrigerated furniture and a system for carrying out this method.
  • the invention applies more particularly to refrigerated aisles encountered in sales areas.
  • blowing devices in height in the sales area. These devices intended to homogenize the temperatures by destratification of the overall volume of air of the zone have fans blowing towards the space to be heated, the air taken in the upper part and therefore warmer. Note that depending on the devices, this air can still be heated by ancillary means such as a hot water heat exchanger or electrical resistors.
  • this solution does not provide convincing results and / or significantly disrupts the operation of refrigerated furniture.
  • Another solution is to have radiant heating panels at low temperature, above the aisle to be heated or at ground level.
  • this solution is expensive and requires significant work if it is not performed at the time of construction of the sales area.
  • the invention therefore aims to remedy these problems by proposing a process for thermal delamination of aisles lined with refrigerated furniture which is efficient, energy efficient and does not disturb the operation of refrigerated furniture.
  • the air curtains of the furniture are undisturbed, the created air movements being parallel and having the same direction of circulation as those of the air curtains integrated in the refrigerating cabinets.
  • the energy consumption of the refrigerating equipment is not increased and the temperature resistance of the products is ensured.
  • the invention also proposes a thermal destratification system making it possible to implement said thermal de-stratification process.
  • Lane figure 3 illustrates the variations of humidity and temperature as a function of the height starting from the ground 11. It will be noted that in the aisle E formed between the refrigerating cabinets 1, 2, the temperature is close to 10 ° C at ground level and that in the zone P close to the ceiling, the temperature is close to 30 ° C.
  • the method according to the present invention makes it possible to regulate the temperature of the aisle E formed between a first piece of furniture 1 and a second piece of furniture 2; at least one of the furniture 1, 2 being refrigerated.
  • the refrigeration of the refrigerating cabinets 1, 2, 9 is provided by a cooling system comprising fans for making a cold air circuit inside the cabinet and in particular a cold air curtain close to the cabinet. opening said furniture.
  • a first air flow path 3 extends from the rear of the upper face 5 of the first furniture 1 to the lower front face 6 of said first furniture 1 and a second air circulation path 4 extends from the rear of the upper face 7 of the second piece of furniture to the lower front face 8 of said second piece of furniture 2.
  • a third piece of furniture 9 and the first 1 or second piece of furniture 2 are arranged back-to-back.
  • the space formed between the third 9 and the first 1 or second piece of furniture 2 respectively forms a first portion of the first 3 or second air circulation path 4.
  • the second part of the air circulation paths 3, 4 is formed between the lower face 10 of the refrigerating cabinet 1, 2 and the floor 11.
  • a fourth piece of furniture can also be arranged back-to-back with the first 1 or second piece of furniture 2 refrigeration.
  • first portions of the first 3 and second air circulation path 4 are formed between two refrigerating units 1, 2, 9.
  • the third and / or fourth furniture may be non-refrigerated display furniture.
  • the non-refrigerated display unit is perforated on its vertical face, arrangements can be added on its rear face to prevent air loss at the first 3 or second path 4.
  • first 1 or second refrigeration unit 2 is arranged against a wall 12. It is then possible to use the space between the wall 12 and said cabinet 1, 2 to form a first part of the first 3 or second path 4 air circulation. It will be noted that in this embodiment, the second part of the path 3, 4 is also formed between the lower face 10 of the refrigerating cabinet and the floor 11.
  • the method In order to regulate the temperature of the aisle E, the method simultaneously expels air towards the aisle through the first path 3 and suck air from the aisle E through the second path 4.
  • the cold air present in the aisle E is driven by the fluidized bed created parallel to the floor 11 of the aisle E, and then rejected above the second refrigerating cabinet 2 to lower the temperature strata of said aisle .
  • hot air from the top of the first refrigerating cabinet 1 is expelled into the aisle E to replace the cold air sucked in by the warmer air.
  • the method also provides for simultaneously drawing air from the aisle E through the first 3 and second 4 paths. In this case, it will be necessary to regulate the air flows in the first 3 and second 4 paths in order to avoid excessive depression in the aisle which would disturb the air curtains.
  • the air circulating in the second path 4 may be sucked or expelled depending on the configuration of the furniture to be equipped and the environment thereof. For example, in the case where refrigerated furniture 2 would be juxtaposed to a piece of furniture "fruit and vegetables", it will be necessary to ensure suction at this level because blowing hot air would cause drying of fruits and vegetables.
  • the system for implementing the thermal destratification process comprises suction means 14, 15 and expulsion 13 of the air.
  • suction means 14, 15 and expulsion 13 of the air are fans associated with the upper face 5, 7 of the furniture 1, 2.
  • the speed of the fans and therefore the flow rates of air through the first 3 and second 4 air circulation paths can be regulated according to a set temperature and at least one temperature sensor placed in the first 3 and / or second air circulation path 4.
  • the thermal destratification system further comprises at least one sheath 16, 17.
  • a first sheath 16 is disposed on the upper face 5 of the first piece of furniture 1 in the continuity of the first path 3 and a second sheath 17 is disposed on the upper face 7 of the second piece of furniture 2 in the continuity of the second path 4.
  • the sheath 17 When the sheath 17 is connected to a suction means 14 of the air of the aisle E, the latter makes it possible to distribute the air to an area of the sales area to be cooled or to reject it to the outside of the sales area.
  • the sheath 16 When the sheath 16 is connected to a means 13 for expelling air to the aisle E, it expels warmer air from a higher stratum.
  • perforated skirting boards 18 are arranged at the end of the air circulation paths 3, 4 on the lower front face 6, 8 of the furniture 1, 2 in order to allow air circulation.
  • Test N ° 1 was carried out without any ventilation.
  • test N ° 6 was carried out with a speed 4 for the blowers and a speed 1 for the sucking fans.
  • an additional heating system can be put in place at the fans to increase the temperature of the air coming from the top of the furniture and expelled into the aisle E. This may be necessary if the temperature is insufficient at the top of the furniture where the air is taken up.
  • the heating of the air can be ensured by the addition of electric resistances or a hot water coil supplied by any source (water heating, heat recovery %)

Landscapes

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

Claims (10)

  1. Verfahren zum Abbau der Wärmeschicht eines zwischen einem ersten Möbel (1) und einem zweiten Möbel (2) gebildeten Gangs E, wobei mindestens eins der besagten Möbel (1, 2) gekühlt wird, wobei beim besagten Verfahren folgendes vorgesehen ist:
    - Bildung einer ersten Luftumlaufbahn (3), die sich von der Oberseite (5) des ersten Möbels (1) zur vorderen Unterseite (6) des besagten ersten Möbels (1) erstreckt;
    - Bildung einer zweiten Luftumlaufbahn (4), die sich von der Oberseite (7) des zweiten Möbels (2) zur vorderen Unterseite (8) des besagten zweiten Möbels (2) erstreckt;
    Wobei das besagte Verfahren dadurch gekennzeichnet ist, daß gleichzeitig:
    - Luft aus dem Gang E durch die erste Bahn (3) hindurch angesaugt wird oder Luft zum Gang E durch die erste Bahn (3) hindurch ausgestoßen wird und ;
    - Luft aus dem Gang E durch die zweite Bahn (4) hindurch angesaugt wird.
  2. Verfahren zum Abbau der Wärmeschicht nach Anspruch 1, dadurch gekennzeichnet, daß dabei vorgesehen ist, ein drittes Möbel (9) und das erste (1) oder das zweite (2) Möbel Rücken an Rücken anzuordnen, wobei der Raum zwischen dem dritten (9) und dem ersten (1) oder dem zweiten Möbel (2) einen ersten Teil der ersten (3) beziehungsweise der zweiten (4) Luftumlaufbahn bildet, wobei ein zweiter Teil der besagten Luftumlaufbahn (3, 4) zwischen der Unterseite (10) des besagten ersten (1) oder zweiten Möbels (2) und dem Boden (11) gebildet wird.
  3. Verfahren zum Abbau der Wärmeschicht nach einem beliebigen der vorstehenden Ansprüche 1 oder 2, dadurch gekennzeichnet, daß dabei vorgesehen ist, das erste (1) oder das zweite Möbel (2) an einer Wand (12) anzuordnen, wobei der zwischen der Wand (12) und dem besagten Möbel (1, 2) gebildete Raum einen ersten Teil der ersten (3) beziehungsweise der zweiten Luftumlaufbahn (4) bildet, wobei ein zweiter Teil der besagten Bahn (3, 4) zwischen der Unterseite (10) des besagten Möbels (1, 2) und dem Boden (11) gebildet wird.
  4. Verfahren zum Abbau der Wärmeschicht nach einem beliebigen der vorstehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, daß dabei vorgesehen ist, die Luftdurchsätze durch die erste (3) und zweite Luftumlaufbahn (4) in Abhängigkeit von einer Solltemperatur und mindestens einer Temperatursonde zu regeln, die in der ersten (3) und/oder zweiten Luftumlaufbahn (4) plaziert ist.
  5. System zum Abbau der Wärmeschicht, bei dem ein Verfahren zur Wärmeregelung eingesetzt werden kann, nach einem beliebigen der vorstehenden Ansprüche 1 bis 3, eines Gangs E, der zwischen einem ersten (1) und einem zweiten (2) Möbel gebildet wird, wobei mindestens eins der besagten Möbel (1, 2) gekühlt ist, wobei das System folgende Elemente umfaßt:
    - Eine erste Luftumlaufbahn (3), die sich von der Oberseite (5) des ersten Möbels (1) zur vorderen Unterseite (6) des besagten ersten Möbels (1) erstreckt;
    - Eine zweite Luftumlaufbahn (4), die sich von der Oberseite (7) des zweiten Möbels (2) zur vorderen Unterseite (8) des besagten zweiten Möbels (2) erstreckt;
    Wobei das besagte System dadurch gekennzeichnet ist, daß es ferner folgende Elemente umfaßt:
    - Ein Mittel zur Ansaugung der Luft (15) aus dem Gang E durch die erste Bahn (3) hindurch oder ein Mittel zum Ausstoßen der Luft (13) zum Gang E durch die erste Bahn (3) hindurch;
    - Ein Mittel zur Ansaugung der Luft (14) aus dem Gang E durch die zweite Bahn (4) hindurch.
  6. System zum Abbau der Wärmeschicht nach Anspruch 5, dadurch gekennzeichnet, daß die Ansaugmittel (14, 15) und die Ausstoßmittel (13) der Luft Ventilatoren sind, die der Oberseite (5, 7) der besagten Möbel (1, 2) zügeordnet sind.
  7. System zum Abbau der Wärmeschicht nach einem beliebigen der vorstehenden Ansprüche 5 oder 6, dadurch gekennzeichnet, daß es außerdem mindestens einen Schacht (16, 17) umfaßt, der auf der Oberseite (5, 7) des ersten (1) oder zweiten Möbels (2) angeordnet ist, beziehungsweise in der Fortsetzung der ersten (3) oder zweiten Bahn (4), wobei der besagte Schacht (16, 17) ermöglicht, die angesaugte Luft im Gang E zu einer abzukühlenden Zone zu verteilen oder wärmere aus einem höheren Bereich kommende Luft zu entnehmen.
  8. System zum Abbau der Wärmeschicht nach einem beliebigen der vorstehenden Ansprüche 5 bis 7, dadurch gekennzeichnet, daß es Heizsysteme an den Ventilatoren hat, die die Luft in den Gang E ausstoßen, damit die Temperatur der ausgestoßenen Luft erhöht wird.
  9. System zum Abbau der Wärmeschicht nach einem beliebigen der vorstehenden Ansprüche 5 bis 8, dadurch gekennzeichnet, daß es außerdem mindestens eine Temperatursonde hat, die in der ersten (3) oder der zweiten (4) Luftumlaufbahn angeordnet ist.
  10. System zum Abbau der Wärmeschicht nach einem beliebigen der vorstehenden Ansprüche 5 bis 9, dadurch gekennzeichnet, daß es durchbrochene Sockelleisten (18) hat, die am Ende der Luftumlaufbahnen (3, 4) auf der vorderen Unterseite (6, 8) der Möbel (1, 2) angeordnet sind.
EP06291292A 2005-09-12 2006-08-09 Verfahren und Vorrichtung zur Verbesserung des Betriebs von Kühlmöbeln Not-in-force EP1762159B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0509271A FR2890723B1 (fr) 2005-09-12 2005-09-12 Procede de destratification thermique d'une allee formee entre des meubles frigorifiques

Publications (2)

Publication Number Publication Date
EP1762159A1 EP1762159A1 (de) 2007-03-14
EP1762159B1 true EP1762159B1 (de) 2008-10-22

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ID=36529277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06291292A Not-in-force EP1762159B1 (de) 2005-09-12 2006-08-09 Verfahren und Vorrichtung zur Verbesserung des Betriebs von Kühlmöbeln

Country Status (5)

Country Link
EP (1) EP1762159B1 (de)
AT (1) ATE411755T1 (de)
DE (1) DE602006003286D1 (de)
ES (1) ES2293872T3 (de)
FR (1) FR2890723B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014009438A1 (de) * 2014-06-25 2015-12-31 Liebherr-Hausgeräte Lienz Gmbh Anordnung von Kühl- und/oder Gefriergeräten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263745A (en) * 1963-06-13 1966-08-02 Emhart Corp Open-front refrigerated display case
FI108609B (fi) * 1998-04-23 2002-02-28 Halton Oy Kylmätiskiin liittyvä ilmankiertojärjestelmä ja menetelmä ilmanvaihdossa kylmätiskillä/kylmätiskeillä varustetussa huone- tai hallitilassa tai hallitilan kylmäosastossa
ES2167280B1 (es) * 2000-10-26 2003-06-01 Frost Trol S A Sistema de recuperacion de calor para climatizacion y reduccion del efecto pasillo frio.

Also Published As

Publication number Publication date
ES2293872T1 (es) 2008-04-01
EP1762159A1 (de) 2007-03-14
DE602006003286D1 (de) 2008-12-04
ATE411755T1 (de) 2008-11-15
FR2890723B1 (fr) 2007-11-23
FR2890723A1 (fr) 2007-03-16
ES2293872T3 (es) 2009-04-16

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