EP1208774A2 - Comptoir frigorifique avec un circuit de refroidissement supplémentaire séparé - Google Patents

Comptoir frigorifique avec un circuit de refroidissement supplémentaire séparé Download PDF

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Publication number
EP1208774A2
EP1208774A2 EP01125726A EP01125726A EP1208774A2 EP 1208774 A2 EP1208774 A2 EP 1208774A2 EP 01125726 A EP01125726 A EP 01125726A EP 01125726 A EP01125726 A EP 01125726A EP 1208774 A2 EP1208774 A2 EP 1208774A2
Authority
EP
European Patent Office
Prior art keywords
goods
heat exchanger
furniture
evaporator
refrigerant
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.)
Granted
Application number
EP01125726A
Other languages
German (de)
English (en)
Other versions
EP1208774B1 (fr
EP1208774A3 (fr
Inventor
Luigi Dr. Vanin
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.)
Carrier Kaeltetechnik Deutschland GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of EP1208774A2 publication Critical patent/EP1208774A2/fr
Publication of EP1208774A3 publication Critical patent/EP1208774A3/fr
Application granted granted Critical
Publication of EP1208774B1 publication Critical patent/EP1208774B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices

Definitions

  • the invention relates to a product display cabinet, in particular a refrigerated counter, with at least one evaporator and / or heat exchanger, in which a cooled Airflow is generated
  • the cooling of the goods room or goods displays of the generic type Merchandise display furniture is usually achieved in that one in the furniture cooled air flow is generated and this cooling air flow circulates in the furniture in such a way that he sweeps over the goods offered in the furniture and cools it.
  • the type of cooling causes the problem that the humidity in the Cooling air flow is comparatively low, since it passes through the Evaporator or heat exchanger is dehumidified.
  • the moisture sets in the evaporator or heat exchanger in the form of snow and ice. This Dehumidification of the cooling air has the consequence that the goods offered as well be dehumidified, which affects your visual presentation.
  • the at least one Have evaporators, or their evaporators in two different ways - namely continuously or cyclically - operated.
  • the evaporator If the evaporator is operated continuously, the circulating in the furniture (Cool) airflow dehumidified relatively strongly, the degree of dehumidification all the more is greater, the lower the temperature realized on the evaporator. Due to the the aforementioned fact results in ice or snow formation on the Evaporator or the evaporator fins.
  • the advantage of this procedure is in that the relative humidity remains essentially constant over time, however reached a comparatively low value. Will the evaporator on the other hand, operated cyclically, the relative air humidity varies relatively strongly, since the Cooling air is dehumidified only when the evaporator is switched on. At this The relative humidity values in the outlet area fluctuate of the supply air duct usually between 60 and 85%.
  • the object of the present invention is a generic Goods display furniture indicate an increase in the average relative humidity in the furniture or its goods room and / or Goods display shelves can be realized.
  • a product presentation furniture is proposed that is characterized in that at least one additional separate, closed refrigerant (mixed) circuit, which is a contact cooling of the or Goods display shelves and / or the or the goods rooms allows is provided and this has at least one heat exchanger, the or the Heat exchangers are arranged such that the in or the evaporators and / or heat exchangers generated cooled air flow at least partially by the or the heat exchanger is guided.
  • At least one additional separate, closed one is now Refrigerant (mixture) circuit provided with which contact cooling of the or Goods display shelves and / or goods rooms is realized.
  • This additional Refrigerant (mixed) circuit now has at least one heat exchanger, the is arranged such that the in the evaporator or the heat exchanger Goods display furniture generated cooling air flow at least partially through this Heat exchanger of the separate refrigerant (mixed) circuit is performed. Thereby it is achieved that the circulating in the separate refrigerant (mixture) circuit Refrigerant or refrigerant mixture is cooled.
  • Refrigerant always to understand a refrigerant mixture below.
  • a mixture consisting of water and glycol is preferably used as the refrigerant to use.
  • the circulation of the refrigerant in this The refrigerant (mixed) circuit is characterized by the temperature difference in it reached so that neither pumps nor compressors are required. Due to the Adequate cooling of the presented goods is achieved without contact cooling but that - as is the case with a circulating cooling air flow - be dehumidified. The goods offered can therefore last longer Period are presented in a visually appealing state, from which a This increases the sales of goods.
  • the product presentation furniture according to the invention is further developed, that the additional separate, closed refrigerant (mixture) circuit from the Goods display furniture is designed to be removable.
  • This configuration of the product presentation furniture according to the invention enables easy cleaning and, if necessary, maintenance of the additional Refrigerant (mixture) circuit.
  • the product presentation furniture according to the invention is further developed suggested that means for supplying the generated cooled airflow to the or the goods display shelves and / or the goods room or rooms, preferably to the areas of the goods display shelf or shelves and / or the Warehouses that are cooled less by contact cooling are provided.
  • This embodiment of the product presentation furniture according to the invention represents one Compromise between the state of the art described above and the present one Invention represents.
  • the goods display shelf or shelves and / or the or Goods rooms designed to be removable from the goods presentation furniture.
  • differently trained can thus Goods display shelves or goods rooms in a product presentation furniture for Come into play.
  • FIGS. 1 and 2 show perspective and schematic representations of a Refrigerated counter, for the sake of clarity on the display of the front window is waived.
  • the furniture body 1 of the refrigerated counter rests on a base 2.
  • the Area 3 of the furniture body 1 facing the operating personnel is shown in FIG illustrated embodiment, an evaporator 4 is arranged.
  • this is on conventional way generates a cooling air flow, which is initially through two heat exchanger 5 and 5 'arranged below the evaporator 4 is passed - represented by the arrow a. Then the cooling air flow is below the Goods display floor 6 along (arrows b) and then on the front, the Customers facing area of the goods delivery floor 6 directed (arrow c), since this Area of the goods display shelf 6 due to the cooling of the refrigerant in the Refrigerant (mixed) circuit is cooled less strongly.
  • the refrigerated counter also has two refrigerant (mixed) circuits 7 and 7 ', which Evaporators 5 and 5 'are assigned.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
EP01125726A 2000-11-24 2001-10-27 Comptoir frigorifique avec un circuit de refroidissement supplémentaire séparé Expired - Lifetime EP1208774B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20019914U DE20019914U1 (de) 2000-11-24 2000-11-24 Kühltheke mit einem separaten Kältekreislauf
DE20019914U 2000-11-24

Publications (3)

Publication Number Publication Date
EP1208774A2 true EP1208774A2 (fr) 2002-05-29
EP1208774A3 EP1208774A3 (fr) 2002-11-27
EP1208774B1 EP1208774B1 (fr) 2005-07-06

Family

ID=7949216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01125726A Expired - Lifetime EP1208774B1 (fr) 2000-11-24 2001-10-27 Comptoir frigorifique avec un circuit de refroidissement supplémentaire séparé

Country Status (4)

Country Link
EP (1) EP1208774B1 (fr)
AT (1) ATE298990T1 (fr)
DE (2) DE20019914U1 (fr)
ES (1) ES2245663T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10217094A1 (de) 2002-04-17 2003-11-06 Linde Ag Verdampfersystem für ein Warenpräsentationsmöbel
DE102017116395A1 (de) * 2017-07-20 2019-01-24 Viessmann Werke Gmbh & Co. Kg Kühlmöbel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB631723A (en) * 1941-10-20 1949-11-08 C V Hill & Company Inc Self service refrigerated display case
US2425473A (en) * 1945-07-28 1947-08-12 C V Hill & Company Inc Refrigerated display case
US3103796A (en) * 1960-07-15 1963-09-17 Hussmann Refrigerator Co Refrigeration system
FR1281416A (fr) * 1960-12-01 1962-01-12 Meuble vertical réfrigéré pour la présentation de diverses denrées ou autres substances
DE19548377C2 (de) * 1995-12-27 1999-11-04 Hellmut Schellenberger Kühltheke
DE20011051U1 (de) * 2000-06-21 2000-10-19 Klezli, Stefan, 58285 Gevelsberg Verkaufstheke

Also Published As

Publication number Publication date
EP1208774B1 (fr) 2005-07-06
DE50106679D1 (de) 2005-08-11
ATE298990T1 (de) 2005-07-15
DE20019914U1 (de) 2001-02-15
ES2245663T3 (es) 2006-01-16
EP1208774A3 (fr) 2002-11-27

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