WO2011074994A1 - Générateur de rideau d'air pour vitrine frigorifique - Google Patents

Générateur de rideau d'air pour vitrine frigorifique Download PDF

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Publication number
WO2011074994A1
WO2011074994A1 PCT/PL2009/000108 PL2009000108W WO2011074994A1 WO 2011074994 A1 WO2011074994 A1 WO 2011074994A1 PL 2009000108 W PL2009000108 W PL 2009000108W WO 2011074994 A1 WO2011074994 A1 WO 2011074994A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
display case
display
chamber
outlet
Prior art date
Application number
PCT/PL2009/000108
Other languages
English (en)
Inventor
Tomasz Kukla
Krzysztof Swoboda
Grzegorz Ozog
Mariusz Stankiewicz
Lech Gold
Original Assignee
Jbg-2 Sp. Z O.O.
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 Jbg-2 Sp. Z O.O. filed Critical Jbg-2 Sp. Z O.O.
Publication of WO2011074994A1 publication Critical patent/WO2011074994A1/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

Definitions

  • the utility model comprises an air curtain generator for refrigerated display case, particularly for vertical display cases.
  • Refrigerated display cases are usually used in commercial establishments for storage and presentation purposes of food in temperatures lower than the ambient temperature.
  • Such display cases consist of a display chamber with thermally isolated walls and an open front and separated from the surroundings by an curtain of air cooled to a temperature below the temperature of the surroundings.
  • a refrigerated display case is known, with the display chamber surrounded by walls made of internal and external layers, with isolation between them.
  • the bottom part of the display case comprises a ventilation set and an evaporator, from which along the back and the upper walls a channel runs with an outlet located outside the display chamber and directed downwards.
  • the air, pushed by a fan and cooled in the evaporator is exhausted through an upper outlet, and flowing down along the display chamber creates an air curtain that separates the chamber from the surroundings, thus allowing to keep the temperature in the chamber lower than the ambient temperature.
  • a vertical display case is included, the shape of which is inscribed in a cuboid.
  • a chamber with a cover in the front in the form of a louver wall.
  • a fan is mounted that sucks in the air from the outside.
  • Behind the fan there is a heat exchanger that cools down the air that was suck in.
  • the chamber has an outlet to a channel that runs within the back wall of the display case and has holes on different levels. The holes let the air inside the display chamber. Next, the channel goes within the upper wall of the display chamber to outlets directed downwards.
  • the upper wall of the display case has an inlet for the surrounding air, wherefrom a channel runs to the downward outlet. Behind the outlet, a fan is mounted that sucks the air in and pushes it into the outlet, wherefrom it flows downwards as an external stream of the air curtain.
  • the solution according to the utility model consists in that in the lower part of the refrigerated display case there is an outlet of the warmer air system, to which a channel is connected, the starting part of which runs along the bottom wall of the display case, its middle part runs along the back wall of the display case, and its end ; part runs along the top wall of the display case, having at the end an outlet of warmer air.
  • This outlet is located outside the outlet of cooler air.
  • the warmer air system is a repetitive, at least one, module of such air flow in the display case. This means that depending on the display case and its dimensions, there may be several warmer air flow systems or more than one channel.
  • Air inlet and outlet also means that there may be more outlets and/or inlets, depending on a particular technical solution (within the scope of claims), and on design.
  • an air filter in the inlet of the cooling chamber there is an air filter, or in the inlet of the beginning part of the warmer air channel, there is an air filter mounted.
  • the advantage of the presented solution is that it enables to recover cold air released to the surroundings from the internal flow of cooler air, and next to introduce it to the external flow of warmer air.
  • a side effect of sealing the closed flow of cooler air is removing the reason for lowering the ambient temperature, which decreases the energy consumption for heating the room.
  • fig.l is a reference front view of the refrigerated display case
  • fig.2 presents the axonometric front view of the refrigerated display case
  • fig. 3 presents the schematic back view of the refrigerated display case
  • fig.4 is a vertical cross- section of the refrigerated display case, in a bigger scale in respect to other figures, for the sake of better clarity.
  • a typical refrigerated display case 1 has a shape inscribed in a cuboid, the five walls 2 of which constitute a thermally isolated casing.
  • the biggest and the most visually exposed element of the display case 1 is the display chamber 3, open at the front and having food shelves 4 mounted inside.
  • Under the display chamber 3 there is a cooling chamber 5 having in its front part a louver inlet of the cooler air and the surrounding air.
  • the channel 9 consists of a vertical part 9a running between the back wall 3b of the display chamber 3 and the back wall 2b of the display case 1. In the back wall 3b there are outlets 10, through which cooler air is pushed from the vertical part 9a to the display chamber 3. At the top of the display case 1, the vertical part 9a becomes an end part 9b, running between the upper wall 3c of the display chamber 3 and the upper wall 2c of the display case 1.
  • the channel of the cooler air 9 is terminated with a downward outlet 11 of cooler air, located at the end of the end part 9b.
  • the warmer air channel 12 below the bottom wall 2a of the display case 1, at the front, there is an inlet 13 of the warmer air channel 12 that consists of the horizontal front part 12a, middle part 12b running outside the back wall 2b of the display case 1, and a horizontal end part 12c.
  • the bed serves as the bottom.
  • a warmer air fan 15 is mounted that sucks in the air through the inlet 13 and pushes it through the channel 12 to a downward outlet 14 located at the end part 12c outside the outlet 11 of the cooler air channel 9.
  • a removable air filter is mounted, and in the inlet 13 of the front part 12a of the warmer air channel 12, a removable air filter is mounted.

Landscapes

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

Abstract

La présente invention a trait à une vitrine (1) dotée d'une chambre de vitrine (3) ouverte à l'avant et thermiquement séparée du milieu extérieur au moyen d'un rideau d'air (A) constitué de deux écoulements d'air (B et C) dont les températures sont inférieures à la température ambiante. Dans la partie inférieure de la vitrine (1), un orifice d'entrée (13) de système d'air de dispositif de chauffage auquel est connecté un canal (12) qui s'étend le long des parois (2a, 2b, 2c) de la vitrine (1) et est qui s'achève par un orifice de sortie (14) situé à l'extérieur de l'orifice de sortie d'air refroidi (11).
PCT/PL2009/000108 2009-12-17 2009-12-17 Générateur de rideau d'air pour vitrine frigorifique WO2011074994A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL11867509 2009-12-17
PLW-118675 2009-12-17

Publications (1)

Publication Number Publication Date
WO2011074994A1 true WO2011074994A1 (fr) 2011-06-23

Family

ID=44246844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2009/000108 WO2011074994A1 (fr) 2009-12-17 2009-12-17 Générateur de rideau d'air pour vitrine frigorifique

Country Status (1)

Country Link
WO (1) WO2011074994A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014100662U1 (de) 2014-02-14 2014-02-24 Aht Cooling Systems Gmbh Kühlregal
DE202014100664U1 (de) 2014-02-14 2014-02-24 Aht Cooling Systems Gmbh Kühlregal
WO2014029613A1 (fr) * 2012-08-22 2014-02-27 Aht Cooling Systems Gmbh Appareil de réfrigération
US9220354B2 (en) 2012-02-17 2015-12-29 Hussmann Corporation Merchandiser with airflow divider
US9456706B2 (en) 2012-02-17 2016-10-04 Hussmann Corporation Merchandiser with airflow divider
US9560921B2 (en) 2012-08-22 2017-02-07 Aht Cooling Systems Gmbh Cooling unit arrangement
GB2549719A (en) * 2016-04-25 2017-11-01 Wirth Res Ltd An open refrigerated display case
US9901190B2 (en) 2012-08-22 2018-02-27 Aht Cooling Systems Gmbh Cooling unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0768501A2 (fr) * 1995-10-11 1997-04-16 Sanyo Electric Co., Ltd. Dispositif de dégivrage pour un présentoir à basse température
PL367690A1 (en) 2001-08-06 2005-03-07 Bonnet Neve Refrigerated display case, in particular vertical display case, with front refrigerated air curtain
EP1743552A1 (fr) * 2005-07-12 2007-01-17 Hussmann Corporation Rideau de l'air ambiant avec dispositif d'entrée dans le sol

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0768501A2 (fr) * 1995-10-11 1997-04-16 Sanyo Electric Co., Ltd. Dispositif de dégivrage pour un présentoir à basse température
PL367690A1 (en) 2001-08-06 2005-03-07 Bonnet Neve Refrigerated display case, in particular vertical display case, with front refrigerated air curtain
EP1743552A1 (fr) * 2005-07-12 2007-01-17 Hussmann Corporation Rideau de l'air ambiant avec dispositif d'entrée dans le sol

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9220354B2 (en) 2012-02-17 2015-12-29 Hussmann Corporation Merchandiser with airflow divider
US10182667B2 (en) 2012-02-17 2019-01-22 Hussmann Corporation Merchandiser with airflow divider
US9456706B2 (en) 2012-02-17 2016-10-04 Hussmann Corporation Merchandiser with airflow divider
US9560921B2 (en) 2012-08-22 2017-02-07 Aht Cooling Systems Gmbh Cooling unit arrangement
CN104540422A (zh) * 2012-08-22 2015-04-22 奥特冷机系统有限公司 冷却设备
WO2014029613A1 (fr) * 2012-08-22 2014-02-27 Aht Cooling Systems Gmbh Appareil de réfrigération
DE102012107713B4 (de) * 2012-08-22 2018-02-15 Aht Cooling Systems Gmbh Kühlregal
US9901190B2 (en) 2012-08-22 2018-02-27 Aht Cooling Systems Gmbh Cooling unit
US9930974B2 (en) 2012-08-22 2018-04-03 Aht Cooling Systems Gmbh Cooling device
DE202014100662U1 (de) 2014-02-14 2014-02-24 Aht Cooling Systems Gmbh Kühlregal
DE202014100664U1 (de) 2014-02-14 2014-02-24 Aht Cooling Systems Gmbh Kühlregal
US10420426B2 (en) 2014-02-14 2019-09-24 Aht Cooling Systems Gmbh Refrigerated display case
GB2549719A (en) * 2016-04-25 2017-11-01 Wirth Res Ltd An open refrigerated display case
GB2549719B (en) * 2016-04-25 2018-09-26 Wirth Res Limited An open refrigerated display case

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