WO2021024047A1 - Installation de réfrigération - Google Patents

Installation de réfrigération Download PDF

Info

Publication number
WO2021024047A1
WO2021024047A1 PCT/IB2020/054513 IB2020054513W WO2021024047A1 WO 2021024047 A1 WO2021024047 A1 WO 2021024047A1 IB 2020054513 W IB2020054513 W IB 2020054513W WO 2021024047 A1 WO2021024047 A1 WO 2021024047A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
housing
niche
refrigerating chamber
wall
Prior art date
Application number
PCT/IB2020/054513
Other languages
English (en)
Russian (ru)
Inventor
Юрий ХАРЧЕНКО
Original Assignee
Юрий ХАРЧЕНКО
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 Юрий ХАРЧЕНКО filed Critical Юрий ХАРЧЕНКО
Priority to PCT/IB2020/054513 priority Critical patent/WO2021024047A1/fr
Priority to RU2021107989A priority patent/RU2762803C1/ru
Publication of WO2021024047A1 publication Critical patent/WO2021024047A1/fr

Links

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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25D23/06—Walls

Definitions

  • the invention relates to refrigeration units in the refrigerating chamber of which a curtain of cooled air is formed in front of the exposed food products located on the shelves of the refrigerating chamber.
  • the invention relates to commercial refrigerated display cases, refrigerated cabinets, commercial refrigerators (hereinafter referred to as the refrigeration unit) in which a curtain of cooled air is formed in front of the food products being exposed.
  • a refrigeration unit is known, see Ecuadorian patent for utility model N ° BY10232, see FIG. 1, containing a vertically oriented housing 1, inside of which there is a refrigerating chamber 2 with shelves 2i, while between the rear wall 2g of the refrigerating chamber 2 and the rear thermally insulated wall 1i of the housing 1 there is an evaporator 3, and in the upper part of the housing there is a condenser 4 with a fan 4i , while the condenser 4 is adjacent to the air collector 5, located on the outer surface of the rear heat-insulated wall 1i of the housing 1 and containing the inlet port 5i of the air collector 5, and the compressor 6 is located in the lower part of the housing 1.
  • the design feature of the known technical solution is that the compressor 6 is located between the rear wall 2g of the refrigerating chamber 2 and the rear heat-insulated wall 1i of the housing 1 cm.
  • FIG. 1 A casing 6i is installed on the compressor 6, which is attached to the rear heat-insulated stack 1i of the casing 1.
  • the casing 6i is located between the rear wall 2g of the refrigerating chamber 2 and the rear insulated wall 1i of the casing 1.
  • the insulated rear wall 1i of the casing 1 is a "sandwich" panel, made of steel sheets between which a heat-insulating layer is formed.
  • compressor 6 hermetic scroll compressors are used, which are not required to be forcedly cooled, as for reciprocating compressors. At the same time, access, technical inspection, repair and replacement of the compressor 6 is carried out as follows - the rear wall 2g of the refrigerating chamber 2 is dismantled and the casing 6i, which is fixed on the rear heat-insulated wall 1i of the housing 1, is removed.
  • the refrigerant circulates in a closed loop from the compressor 6 through the condenser 4 to the evaporator 3 and back.
  • the air flow is cooled in the evaporator 3 located between the rear wall 2g of the refrigerating chamber 2 and the rear heat-insulated wall 1i of the housing 1.
  • the disadvantage of the known technical solution is the removal of all heat from the compressor 6 into the refrigerating chamber 2 through the protective casing 6i and the rear wall 2g of the refrigerating chamber 2. This reduces the efficiency of the known refrigeration plant and increases the consumption of electrical energy.
  • the disadvantage of the known technical solution is the limited space formed between the rear wall 2g of the refrigerating chamber 2 and the rear thermally insulated wall 1i of the housing 1, which complicates access and increases the time during the maintenance, repair and replacement of the compressor 6.
  • the disadvantage of the known technical solution is the impossibility of using reciprocating compressors, the price of which is significantly lower than the price of hermetic scroll compressors.
  • the object of the proposed invention is to eliminate the removal of heat from the compressor to the refrigerating chamber.
  • a condenser with a fan is located in the upper part of the body, while the condenser is adjoined by an air collector located on the outer surface of the rear a thermally insulated wall of the housing and containing an inlet window of the air manifold, and in the lower part of the housing there is a compressor, according to the proposed invention, that in the lower part of the rear thermally insulated wall of the housing a niche is formed in which the rear thermally insulated wall of the housing is directed to the rear wall of the refrigeration display part of the niche, a support surface is made, which protrudes from the niche, and a compressor is installed on the said support surface, above which the inlet window of the air manifold is located.
  • the support surface protrudes from the recess to the outer surface of the air manifold.
  • the rear heat-insulated wall of the housing of the niche is made in the form of a removable heat-insulated cover, hermetically connected to the rear heat-insulated wall of the housing.
  • the refrigeration unit additionally contains a protective screen of the niche, containing through holes and installed on the rear heat-insulated wall of the housing.
  • a fan is installed in the through hole of the protective screen of the niche, directed towards the compressor.
  • a hermetic scroll compressor is used as the compressor.
  • a piston compressor is used as the compressor.
  • the installation further comprises a condensate evaporator for the refrigerating chamber and an evaporator located in the lower part of the housing.
  • the compressor is located behind the casing in a niche made in the rear heat-insulated casing wall, which allows to eliminate heat removal from the compressor to the refrigerating chamber, and also allows you to create forced cooling of the compressor.
  • a removable heat-insulated cover for the rear wall of the niche housing provides access to the compressor from the rear wall of the refrigerating chamber.
  • the removable heat-insulated cover of the rear heat-insulated wall of the housing is attached hermetically to prevent possible air exchange between the refrigerating chamber and the niche formed in the rear heat-insulated wall of the housing.
  • a protective screen limits access to the compressor by third parties, which reduces the possibility theft and damage to compressor elements, especially during transportation of the refrigeration unit, which is also an advantage of the proposed invention.
  • condensate forms in the refrigerating chamber and on the evaporator, which is discharged into the evaporator.
  • heating elements for evaporating condensate.
  • Evaporation of condensate leads to an increase in humidity, which can lead to oxidation (corrosion) of the compressor components and connections, or the supporting steel frame members. Therefore, positioning the air manifold inlet above the compressor reduces moisture in the niche in which the compressor is located, which is also an advantage of the present invention.
  • FIG. 1 is a schematic side view of a showcase refrigeration unit according to the prior art.
  • FIG. 2 is a schematic side view of a showcase refrigeration unit according to the invention.
  • FIG. 3 is a view of FIG. 2 from the side of the rear heat-insulated housing wall.
  • FIG. 2, Fig. 3 shows an example of a refrigeration plant according to the invention.
  • the refrigeration unit contains a vertically oriented housing 1, inside which there is a refrigeration chamber 2 with shelves 2i. Between the back wall 2g of the refrigerating chamber 2 and the back The evaporator 3 is located by the heat-insulated wall 1i of the housing 1.
  • a condenser 4 with a fan 4i to which an air collector 5 is connected, located on the outer surface of the rear heat-insulated wall 1i of the housing 1.
  • a niche 12 is formed, in which the rear heat-insulated wall 1i of the housing 1i is directed to the rear wall 2d of the refrigerating chamber 2.
  • a support surface 1 h is made, which protrudes from the niche 1d to the outer surface of the air collector 5 cm. FIG. 2.
  • a compressor 6 is installed on the support surface 1h. Above compressor 6, there is an inlet port 5i of the air manifold 5.
  • a protective screen 7 with through holes is installed on the rear heat-insulated wall 1i of the housing 1 on the niche 1d and protects the compressor 6 from the side of the rear heat-insulated wall 1i of the housing 1.
  • a fan 7i is mounted on the protective screen 7 and directed towards the compressor 6.
  • the condensate evaporator 8 is located in the lower part of the housing 1 under the inlet 5i of the air collector 5.
  • Refrigeration plant operation FIG. 2, Fig. 3, according to the proposed invention, is that the refrigerant is circulated in a closed loop from the compressor 6 through the condenser 4 to the evaporator 3 and back. Compressor 6 compresses the refrigerant, increasing the pressure. In the condenser 4, a phase transition of the refrigerant into a liquid state occurs and the temperature released during the phase transition is discharged by the air flow formed by the fan 4i supplied from the air collector 5. In the evaporator 3, refrigerant evaporates, as a result of which heat is taken (removed) from the circulating air in the refrigerating chamber 2.
  • a curtain of a falling flow of circulating cooled air is formed in front of the products (not shown in the figures) located on the shelves 2i of the refrigerating chamber 2.
  • the cooling of the circulating air in the refrigerating chamber 2 occurs as a result of its interaction with the outer surface of the evaporator 3 (the figures do not show the means for forming the circulating flow of cooled air in the refrigerating chamber 2).
  • condensate is formed, which is discharged into the evaporator 8 located in the lower part of the housing 1.
  • condensate is evaporated by means of heating elements (not shown in the figures).
  • the formation of forced cooling of the compressor 6 also occurs.
  • the useful volume of the refrigerating chamber 2 does not decrease, but the heat removal from compressor 6 into the refrigerating chamber 2, since the compressor 6 is located behind the casing 1 in a recess 12 formed in the rear heat-insulated stack 1i of the casing 1.
  • an increase in the cooling of the compressor 6 occurs due to the location of the inlet port 5i above the compressor 6, due to the direction of the fan 7i of the protective screen 7 to the compressor 6, and also due to the formation of a convective air flow in the niche 1d due to the heating of the air by the compressor 6 in niche 1g.
  • an increase in the volume of the niche 1g occurs, in which the supporting surface 1z protrudes from the niche 1 g, which makes it possible to install piston or hermetic scroll types of compressors, which also improves the technical inspection, repair and replacement of the compressor 6, while in the case of replacing the compressor 6 , it can be replaced by another type (spiral, piston) without changing the design of the refrigeration unit, which is also an advantage of the proposed invention.
  • the proposed invention is not limited to the above example of its implementation.
  • the protective shield may include locking means.
  • vibration isolators can be located on which the compressor is installed.
  • the removable heat-insulated niche cover may contain seals to provide more tightness to eliminate air exchange between the refrigerating chamber and the niche.
  • the air manifold can be formed from a set of air manifolds or contain baffles to delimit the air flows generated by fans installed along the length of the housing.
  • the support surface may contain means for adjusting its extension from the niche of the rear heat-insulated wall of the housing.
  • an additional compressor cooling fan mounted on the protective shield can be activated when certain compressor temperature values are reached.
  • the technical result of the proposed invention is the elimination of heat removal from the compressor to the refrigeration a chamber with the simultaneous creation of forced cooling of the compressor and an increase in the volume in which the compressor is located for the use of reciprocating or hermetic scroll compressors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne des installations de réfrigération dans une chambre de réfrigération dans laquelle on génère un rideau d'air refroidi devant des produits alimentaires exposés situés sur des étagères de la chambre de réfrigération. L'invention consiste essentiellement à former, dans la partie inférieure de la paroi arrière et isolée thermiquement du corps, une niche dans laquelle la paroi arrière et isolée thermiquement du corps est orientée vers la paroi arrière d'une vitrine réfrigérée; dans la partie inférieure de la niche se trouve une surface de support qui dépasse de la niche et, sur ladite surface de support, se trouve un compresseur au-dessus duquel est formée une fenêtre d'admission d'un collecteur d'air. Le résultat technique de la présente invention consiste en l'élimination d'évacuation de chaleur depuis le compresseur vers la chambre de réfrigération tout en générant un refroidissement forcé du compresseur et une augmentation du volume dans lequel se situe le compresseur afin de pouvoir utiliser des compresseurs spirales à pistons ou hermétiques.
PCT/IB2020/054513 2020-05-13 2020-05-13 Installation de réfrigération WO2021024047A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IB2020/054513 WO2021024047A1 (fr) 2020-05-13 2020-05-13 Installation de réfrigération
RU2021107989A RU2762803C1 (ru) 2020-05-13 2020-05-13 Холодильная установка

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2020/054513 WO2021024047A1 (fr) 2020-05-13 2020-05-13 Installation de réfrigération

Publications (1)

Publication Number Publication Date
WO2021024047A1 true WO2021024047A1 (fr) 2021-02-11

Family

ID=74503331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2020/054513 WO2021024047A1 (fr) 2020-05-13 2020-05-13 Installation de réfrigération

Country Status (2)

Country Link
RU (1) RU2762803C1 (fr)
WO (1) WO2021024047A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2267876T3 (es) * 2001-03-14 2007-03-16 Liebherr-Hausgerate Lienz Gmbh Frigorifico y/o congelador.
RU2360191C1 (ru) * 2005-03-01 2009-06-27 Арчелык Аноним Ширкети Холодильное устройство
ES2379636T3 (es) * 2004-10-29 2012-04-30 BSH Bosch und Siemens Hausgeräte GmbH Refrigerador modular
RU2560981C2 (ru) * 2010-08-27 2015-08-20 АНТ Кулинг Системс ГмбХ, Австрия Холодильное оборудование, в особенности холодильная витрина
EP1541948B1 (fr) * 2003-12-09 2017-10-11 LG Electronics, Inc. Appareil émetteur de rayons d'un réfrigérateur encastré
RU197434U1 (ru) * 2020-02-13 2020-04-27 Общество с ограниченной ответственностью "ТД УГУР" Охлаждаемая витрина

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206709476U (zh) * 2017-05-16 2017-12-05 石狮市新卯自动化设备有限公司 一种具有制冰室的风冷冰箱

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2267876T3 (es) * 2001-03-14 2007-03-16 Liebherr-Hausgerate Lienz Gmbh Frigorifico y/o congelador.
EP1541948B1 (fr) * 2003-12-09 2017-10-11 LG Electronics, Inc. Appareil émetteur de rayons d'un réfrigérateur encastré
ES2379636T3 (es) * 2004-10-29 2012-04-30 BSH Bosch und Siemens Hausgeräte GmbH Refrigerador modular
RU2360191C1 (ru) * 2005-03-01 2009-06-27 Арчелык Аноним Ширкети Холодильное устройство
RU2560981C2 (ru) * 2010-08-27 2015-08-20 АНТ Кулинг Системс ГмбХ, Австрия Холодильное оборудование, в особенности холодильная витрина
RU197434U1 (ru) * 2020-02-13 2020-04-27 Общество с ограниченной ответственностью "ТД УГУР" Охлаждаемая витрина

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