EP4137013A1 - Vitrine réfrigérée ouverte avec système en cascade d'évaporation de l'humidité de condensation - Google Patents

Vitrine réfrigérée ouverte avec système en cascade d'évaporation de l'humidité de condensation Download PDF

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Publication number
EP4137013A1
EP4137013A1 EP22767625.1A EP22767625A EP4137013A1 EP 4137013 A1 EP4137013 A1 EP 4137013A1 EP 22767625 A EP22767625 A EP 22767625A EP 4137013 A1 EP4137013 A1 EP 4137013A1
Authority
EP
European Patent Office
Prior art keywords
display case
condensation moisture
container
condenser
containers
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.)
Pending
Application number
EP22767625.1A
Other languages
German (de)
English (en)
Inventor
Viktor Oleksandrovych LUKYANCHUK
Sergiy Oleksandrovych MASLOVSKYY
Taras Valeriyovych MAZUROK
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.)
Coastrock Holdings Ltd
Je Modern Expo Ltd
Original Assignee
Coastrock Holdings Ltd
Je Modern Expo Ltd
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
Priority claimed from UAA202101168A external-priority patent/UA126877C2/uk
Application filed by Coastrock Holdings Ltd, Je Modern Expo Ltd filed Critical Coastrock Holdings Ltd
Publication of EP4137013A1 publication Critical patent/EP4137013A1/fr
Pending legal-status Critical Current

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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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/145—Collecting condense or defrost water; Removing condense or defrost water characterised by multiple collecting pans

Definitions

  • the invention relates to commercial refrigeration equipment, in particular, to the means for removing condensation moisture during the operation of open refrigerator display cases.
  • Open refrigerator display cases are one of the most common types of commercial refrigeration equipment, which is due to the convenience of its operation in self-service retail establishments. Customers have constant free access to goods that require special conditions.
  • the operation of a refrigerator display case provides for the supply of cooled air to a goods storage zone through perforations of a rear wall.
  • cooled air is supplied, through a special channel, to an opening in the front section of the ceiling.
  • customers repeatedly damage the integrity of the air curtain, thereby providing access of the warm ambient air to the interior of the display case.
  • the supply of cooled air is automatically increased.
  • a refrigerator display case [RU 12943, dated 20 March 2000, Bulletin No. 8] is known, in which the means for condensation moisture removal include a tray installed under the evaporator and connected to the compressor of the refrigeration unit, which is disposed in a lower compartment of the refrigerator display case.
  • the drainage tube of the tray runs from an upper section of the display case to the lower compartment through an internal channel.
  • the end of the drainage tube is connected to a water-collecting bath intended for condensation moisture evaporation, which is installed in such a way as to ensure heat contact with the heat-loaded element of the compressor.
  • the condensate drainage tray is stepped and contains at least two inclined water drainage chutes installed, with a gap, one above the other, the lower one of which is connected to the water drainage tube.
  • the disadvantage of the described analogue is the low productivity of evaporation of condensation moisture, which is due to the insufficiently high temperature of the heat-loaded compressor element and the small area of evaporation.
  • a cooling and conditioning unit [ US20130031921, publ. on 07 February 2013 ] is known, which includes a compressor, a condenser, an expansion valve and an evaporator, an evaporator heating device used during the defrosting cycle, a drainage tray into which melt water enters, a drainage tray heating device, a frost detection sensor for the evaporator, and a moisture sensor for the drainage tray, as well as a controller that controls the on/off of the evaporator and drainage tray heating devices.
  • the moisture from the drainage tray is evaporated by means of a heating element, the operation of which is controlled by a sensor and a controller.
  • the disadvantage of the described analogue is the high energy expenditures, requiring evaporation in the event of entry of a large amount of moisture.
  • Improved refrigeration equipment [ WO2006121347, publ. on 16 November 2006 ] is known, which includes an evaporator, a compressor, a condenser, a fan, and a tray for collecting water when defrosting the refrigerator, which is disposed in a closed housing that has ventilation openings. At the same time, at least part of the tubing between the compressor and the condenser passes through the tray designed for water evaporation. And the fan, the closed housing, as well as the tray are designed in such a way that, when the fan is used, it moves air through the housing, above the surface of the tray, which ensures condensation moisture evaporation.
  • the disadvantage of the described analogue is the insufficient productivity of evaporation of moisture, which is due to the small area of evaporation and insufficient productivity of evaporation by means of a fan only.
  • a refrigerator [ DE102013208236, publ. on 06 November 2014 ] is known, with a device for the collection and evaporation of condensation moisture, which is created during the operation of the household refrigerator.
  • the refrigerator comprises an evaporation element made of a porous and/or hygroscopic material, which includes multiple separate plates and a wetting device disposed of above the evaporation device and evenly distributing moisture along its length. This also provides for the possibility of rotation of the evaporation device for its wetting in the tray. To intensify the evaporation process, the heat of the compressor is used.
  • the disadvantage of the analogue is the limited scope of use, as it is intended for a household refrigerator, as well as the insufficient productivity of evaporation, which cannot ensure the removal of an increased amount of condensation moisture that is typical for an open refrigerator display case.
  • the invention is based on the problem of developing a design of an open refrigerator display case, which would include an evaporation means that will provide high productivity of evaporation when a large amount of moisture enters, with reasonable energy expenditures and the convenience of operation.
  • an open refrigerator display case comprises a heat-insulating housing, in which a heat exchanger and means for supplying cooled air to a goods storage and display zone and for creating an air curtain are installed, as well as a tray where a compressor and a condenser, condenser cooling means, and a condensation moisture removal system are installed.
  • the invention is characterised in that the condensation moisture evaporation system comprises a set of at least three containers, which are arranged in a cascade one above another. The set of containers is installed in a lower section of the heat-insulating housing below a condensate drainage means.
  • the upper container has the smallest size
  • the lower container has the greatest size, which provides for spontaneous transfer of condensation moisture from the upper container to the middle container and then to the lower container, which includes a cartridge with a fabric evaporator, before which condenser cooling means (fans) are disposed, while an opening is arranged behind the set of cascading containers in a rear wall of the display case for removing the air stream, which is created by the condenser cooling means (fans) and passes through the condensation moisture evaporation system out of the display case.
  • the heat exchanger is installed in the discharge channel, which is arranged in a rear section of the heat-insulating housing of the display case, while condensation moisture is drained through an outlet tube, the lower end of which is immersed in a tray disposed in the tray of the display case, and, from this tray, condensation moisture enters the upper container of the set of cascading containers.
  • the middle container of the set of cascading containers may be additionally equipped with a tube leading from the condenser.
  • the lower container may be additionally equipped with a heating element.
  • An open refrigerator display case comprises a heat-insulating housing (1), under which a tray (2) is disposed.
  • a heat exchanger (evaporator) (3) and means for supplying cooled air (fan) (4), through a discharge channel (5), to a goods storage and display zone (6) and an outlet (7) for creating an air curtain are installed in the heat-insulating housing (1).
  • an outlet tube (8) is installed, which is immersed in the condensation moisture of a collection tray (9) disposed under the heat-insulating housing (1) in an upper section of the tray (2). From the collection tray (9), condensation moisture is transferred to the set of cascading containers (10) of the condensation moisture removal system.
  • the set of cascading containers comprises the upper container (101), the middle container (102), and the lower container (103).
  • a cartridge with a fabric evaporator (11) is installed, which is disposed opposite condenser (12) cooling means - fans (13).
  • the middle container (102) of the set of cascading containers (10) may be equipped with a tube (14) diverted from the condenser (12), and the tube (14) is heat-loaded.
  • the lower container (103) of the cascade (10) is equipped with a heating element (15).
  • the air stream which is created by the condenser (12) fans (13), passes through an opening (16) in a rear wall of the display case opposite the set of cascading containers (10).
  • a compressor (17) is arranged, which ensures the supply of the refrigerant to the heat exchanger (evaporator) (3).
  • an open refrigerator display case consists of cooling air and supplying it to a goods storage and display zone.
  • the compressor (17) supplies the refrigerant to the heat exchanger (evaporator) (3), which is arranged in the discharge channel (5) of the heat-insulating housing (1) of the refrigerator display case.
  • the fan (4) cooled air is supplied, through the perforations in the display case wall, to the goods storage and display zone (6), as well as to the outlet (7) in order to create an air curtain.
  • the refrigerant is cooled and passes into the liquid phase in the condenser (12), in front of which fans (13) are installed to ensure the efficiency of cooling and condensation of the refrigerant, which provide cooling of the condenser by moving air masses.
  • the compressor (17) and the condenser (12) are installed in the tray (2) of the refrigerator display case. Condensation moisture from the heat-insulating housing (1), by means of the outlet tube (8), enters the collection tray (9), which is arranged in the tray (2) under the heat-insulating housing (1).
  • condensation moisture is transferred to the upper container (101) of the set of cascading containers (10). Further, it is transferred to the middle container (102) and then to the lower container (103). Since the perimeter of the middle container (102) is greater than the perimeter of the upper container (101), and the perimeter of the lower container (103) is greater than the perimeter of the middle container (102), spontaneous transfer of water occurs.
  • the condenser (12) fans (13) ensure the creation of an air stream, the temperature of which is 3-7 °C higher than the ambient air temperature, which increases the productivity of evaporation and removal of condensation moisture from the tray (2) of the display case.
  • the cartridge with a fabric evaporator (11) is installed, comprising a complex of surfaces made of a hygroscopic material, the lower edge of which is immersed in water entering the lower container (103) of the cascade (10). Due to the hygroscopic properties of the cartridge material, water rises through the capillaries of the tissue and enters the air stream created by the condenser (12) fans (13), which intensifies evaporation of moisture by increasing the evaporation surface.
  • the basic configuration does not provide for additional means for heating in the containers (102) and (103). Meanwhile, it fully removes condensation moisture from the tray of the display case due to its large dimensions and due to the large area of evaporation created by the set of cascading containers (10).
  • the productivity of such a system is 14-22 l/day, and it does not require additional energy expenditures to remove condensation moisture.
  • the invention provides for additional intensification of the evaporation process by passing a tube (14) of the condenser (12) through the middle container (102). This does not require the use of additional energy expenditures and does not improve the process of cooling and condensation of the refrigerant, but is only associated with the structural design of the product.
  • a heating element (15) which turns on when it is completely covered with water (i.e. the amount of water becomes larger than the amount which may be removed without its use), is installed in the lower container (103). This optimises energy expenditures and provides the necessary productivity for moisture removal for small open refrigerator display cases.
  • an opening (16) is arranged, through which the air stream, which is created by the condenser (12) fans (13), removes all moisture in a gaseous state.
  • the use of the claimed technical solution ensures an increase in the productivity of removal of condensation moisture from the internal volume of the open refrigerator display case, reasonable energy expenditures, as well as the convenience and reliability of operation.
  • the claimed technical solution was tested in the laboratory of JE MODERN-EXPO LTD, accredited by the National Accreditation Agency of Ukraine according to the DSTU ISO/IEC 17025:2017 standard (ISO/IEC 17025:2017), Decision No. 201554, 15.1 (technical result).
  • the technical solution is fully described and may be implemented using industrial technologies. Therefore, it meets the criterion of patentability of invention ("industrial applicability").

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)
EP22767625.1A 2021-03-09 2022-03-09 Vitrine réfrigérée ouverte avec système en cascade d'évaporation de l'humidité de condensation Pending EP4137013A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
UAU202101170 2021-03-09
UAA202101168A UA126877C2 (uk) 2021-03-09 2021-03-09 Відкрита холодильна вітрина із каскадною системою випаровування вологи конденсації
PCT/UA2022/000011 WO2022191809A1 (fr) 2021-03-09 2022-03-09 Vitrine réfrigérée ouverte avec système en cascade d'évaporation de l'humidité de condensation

Publications (1)

Publication Number Publication Date
EP4137013A1 true EP4137013A1 (fr) 2023-02-22

Family

ID=83227018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22767625.1A Pending EP4137013A1 (fr) 2021-03-09 2022-03-09 Vitrine réfrigérée ouverte avec système en cascade d'évaporation de l'humidité de condensation

Country Status (2)

Country Link
EP (1) EP4137013A1 (fr)
WO (1) WO2022191809A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1352159A1 (ru) * 1986-06-13 1987-11-15 Московский автомобильный завод им.И.А.Лихачева Лоток дл приема льда и талой воды при оттаивании испарител
RU2077686C1 (ru) * 1995-02-15 1997-04-20 Акционерное общество "Муромский машиностроительный завод" Устройство для отвода талой воды при оттайке испарителя бытового холодильного прибора
JPH10257944A (ja) * 1997-03-18 1998-09-29 Sanyo Electric Co Ltd 花用冷却ショーケース
RU12943U1 (ru) 1999-06-15 2000-03-20 Ломакин Дмитрий Анатольевич Охлаждаемая витрина
EP1880154A4 (fr) 2005-05-10 2010-01-13 Skope Ind Ltd Appareil de réfrigération amélioré
DE102005043355A1 (de) * 2005-09-12 2007-03-15 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Tauwasserverdunster dafür
EP3330642B1 (fr) 2010-05-26 2020-04-29 Mitsubishi Electric Corporation Dispositif de réfrigération et de climatisation
US20130098091A1 (en) * 2011-10-24 2013-04-25 Hill Phoenix, Inc. Refrigeration device with evaporative condensate dissipation system
DE102013208236A1 (de) 2013-05-06 2014-11-06 BSH Bosch und Siemens Hausgeräte GmbH Haushaltskältegerät mit einer Tauwassersammel- und Verdunstungsvorrichtung, welche eine Mehrzahl von separaten Platten und eine Benetzungseinrichtung aufweist
CN204678778U (zh) * 2015-05-07 2015-09-30 青岛海尔股份有限公司 冰箱内冷凝装置及冰箱

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Publication number Publication date
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