EP1929902A1 - Systeme ameliore de recuperation de chaleur a des fins de climatisation et de reduction du phenomene du couloir froid - Google Patents

Systeme ameliore de recuperation de chaleur a des fins de climatisation et de reduction du phenomene du couloir froid Download PDF

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Publication number
EP1929902A1
EP1929902A1 EP05803586A EP05803586A EP1929902A1 EP 1929902 A1 EP1929902 A1 EP 1929902A1 EP 05803586 A EP05803586 A EP 05803586A EP 05803586 A EP05803586 A EP 05803586A EP 1929902 A1 EP1929902 A1 EP 1929902A1
Authority
EP
European Patent Office
Prior art keywords
air
conditioning
retail
heat recovery
reduce
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
EP05803586A
Other languages
German (de)
English (en)
Other versions
EP1929902B1 (fr
Inventor
Roberto Solsona Caballer
Walter Omar Fattore
Javier Blanco Castro
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.)
Frost-Trol Sa
Original Assignee
Frost-Trol Sa
Frost-Trol SA
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 Frost-Trol Sa, Frost-Trol SA filed Critical Frost-Trol Sa
Priority to PL05803586T priority Critical patent/PL1929902T3/pl
Publication of EP1929902A1 publication Critical patent/EP1929902A1/fr
Application granted granted Critical
Publication of EP1929902B1 publication Critical patent/EP1929902B1/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
    • 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
    • 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
    • A47F3/0469—Details, e.g. night covers

Definitions

  • This invention relates in general to an improved heat recovery system which is intended for air-conditioning and to reduce the cold corridor effect produced in open retail refrigeration cabinets or lines of same.
  • the heat evolved by a refrigerant fluid during the prior condensation or cooling process of it is made use of in a condensation unit or in an intermediate heat exchanger housed between that condensation unit and the discharge line of the compressor or of an array of positive or negative temperature compressors, belonging to the refrigerating circuits of refrigeration cabinets to be found in retail outlets; with the aim of using this heat evolved by the refrigerant fluid for air-conditioning and to reduce the cold corridor effect produced in the vicinity of those open retail refrigeration cabinets or lines of same, owing to the direct contact between the external face of the refrigeration air curtain of the refrigeration cabinet and the air inside a retail outlet.
  • the object of this invention relates to the design of an improved system for making use of the heat released by a refrigerant fluid in a condensation unit or in an intermediate heat exchanger during the prior condensation or cooling process thereof, for air-conditioning and to reduce the cold corridor effect, as described previously.
  • Retail outlets concerned with the distribution of perishable cold products are fitted with various kinds of refrigeration cabinet designed exclusively for the sale of these food products.
  • refrigeration cabinet designed exclusively for the sale of these food products.
  • Coming within this type of refrigeration cabinet are open retail refrigeration cabinets.
  • the products stored in these refrigeration cabinets require for their conservation a refrigerated ambience with certain given temperature levels.
  • a refrigerated air curtain which demarcates the ambience of the retail outlet from the interior ambience of those open retail refrigeration cabinets.
  • Open retail refrigeration cabinets continually extract heat from the ambient air of the retail outlet owing to the direct contact existing between the external face of the refrigerated air curtain and the air inside the refrigeration cabinet. For that reason, in the vicinity of open retail refrigeration cabinets there exists an ambient temperature that is appreciably less than in the rest of the retail outlet, which is proportional to the installed cold density, defined on the basis of the ratio existing between the cooling power extracted by open retail refrigeration cabinets and the retail surface area.
  • condensation unit of the refrigeration system is installed in the upper part of open retail refrigeration cabinets (if the cabinets are small the condenser unit is located in the lower part), thereby making use of the heat given off during the condensation process of the refrigerant fluid in order to raise the temperature in the interior of the retail outlet, with the consequent economic drawback if we take into account that during the summer months this heat input then has to be eliminated by the air-conditioning system.
  • a heat recovery system is known for air-conditioning and reduction of the cold corridor effect, and is described in document ES-2.167-280, owned by FROST-TROL, SA, the content of which is incorporated into this specification as reference.
  • This document of the prior art describes an air-conditioning system for retail outlets and/or for distributor shops for perishable food products, which describes a system for making use of the air heated during the condensation process of a refrigerant fluid in the condenser units belonging to the refrigeration circuits of open retail refrigeration cabinets.
  • the condensation unit is located in the upper part of the refrigeration cabinet, thereby taking advantage of the heat evolved during the condensation of the refrigerant.
  • the hot air is supplied via the lowest part of the refrigeration cabinet towards the interior of the retail premises, and also to any other place.
  • a system which permits the drawbacks mentioned above to be diminished by means of designing an improved system for heat recovery in which the heat evolved by a refrigerant fluid during the prior condensation or cooling process is made use of in a condensation unit or in an intermediate heat exchanger housed between that condensation unit and the discharge line of a compressor or of an array of positive or negative temperature compressors, or of any refrigeration system.
  • the inventive system is applicable to open retail refrigeration cabinets or lines of same designed for the retail of perishable food products, for positive or negative temperatures.
  • the system comprises a unit for the recovery and exploitation of the heat, as well as a unit for distributing and supplying heated air towards the interior of a retail outlet or a large retail store or an area to be air-conditioned, or any other place.
  • the heat recovery and exploitation unit contains a heat exchanger housed in the unit for distributing and supplying heated air, an intermediate heat exchanger and/or a condenser unit, an insulated tank and a circulation pump.
  • the intermediate heat exchanger and/or the condensation unit is arranged in the discharge line of the compressor or of the array of compressors, with the aim of making use of the heat evolved by the refrigerant fluid during the condensation of cooling process of the latter.
  • the intermediate heat exchanger and/or the condensation unit can be housed in a machine room intended for this purpose or outside of it or in open retail refrigeration cabinets or lines of same.
  • the heat evolved by the refrigerant fluid is absorbed in the condensation unit and/or in the heat exchanger by a secondary working fluid.
  • the recirculation of the secondary fluid is carried out using a circulation pump, interconnected with an insulated tank and with the heat exchanger that is housed in the duct for channelling and supplying the hot air.
  • the geometry, design and number of heat exchangers used in the heat recovery and exploitation unit will depend on the installed cooling power.
  • the unit for distributing and supplying heated air towards the interior of the area to air-condition comprises an air suction grille, an interchangeable filter, a fan unit interconnected with the regulation system for the system and some air diffusers located in the lower part of the open retail refrigeration cabinet.
  • the unit for distributing and supplying heated air can be housed in the rear part of an open retail refrigeration cabinets or outside of it.
  • the entire inventive assembly is provided with a device for regulating and controlling certain established conditions of comfort for the permanence of people and customers in general in these retail outlets.
  • the inventive system described above has the advantage of gradually reducing the relative humidity of the air inside a retail outlet or in a large retail store or in an area to air-condition, or anywhere else, thereby helping to reduce the installed cooling power and the overall energy consumption of these retail outlets.
  • inventive system whose embodiment by way of example will be explained below, is applicable to open retail refrigeration cabinets or lines of same, designed for the retailing of perishable food products, arranged in a retail outlet or in a large retail store or in an area to air-condition or any other place.
  • the inventive system comprises a recovery and exploitation system for the heat evolved by a refrigerant fluid during the condensing or cooling of it, as well as a unit for distributing and supplying the heated air via the lower part of the open retail refrigeration cabinets or lines of same towards the interior of a retail outlet or a large retail store or an area to be air-conditioned, or any other place.
  • the heat recovery and exploitation unit contains a heat exchanger (6) housed in the unit for distributing and supplying heated air (1), an intermediate heat exchanger (15) and/or a condenser unit (16) located in the discharge line of the compressor (14), an insulated tank (17) and a circulation pump (18), as well as the other conventional automata necessary for regulating the refrigerating facility.
  • the unit for distributing and supplying the heated air (1) contains an air suction grille (2), an interchangeable filter (3), fan (5), some air diffusers (8) arranged inside the ducts for channelling (4) and pulsing the heated air (7), as well as a device for regulating and controlling (19) the ambient conditions in the vicinity of open retail refrigeration cabinets or lines of same.
  • At least one fan (5) housed in the channelling duct (4) sucks a flow of air (M 2A ) from the interior of a retail outlet or a large retail store or an area to be air-conditioned, or any other place, via some suction grilles (2) located in the inlet duct of the unit for distributing and supplying the heated air (1).
  • the airflow (M 2A ) is pulsed via some interchangeable filters (3) and at least one heat exchanger (6), arranged in the duct for channelling (4) of the heated air.
  • the air As it passes through the heat exchanger (6), the air is heated owing to the thermal exchanger that is produced with the secondary fluid air (M 1F ) of the heat recovery unit.
  • the hot air is distributed and pulsed to the interior of a retail outlet or a large retail store or an area to be air-conditioned, or any other place, by means of some air diffusers (8) housed in the lower part of the open retail refrigeration cabinets or in lines of same.
  • the supplying the heated airflow (M 2A ) to the interior of a retail outlet or a large retail store or an area to be air-conditioned or any other place is regulated by means of a control device (19), which employs certain measuring devices (20, 21) suitably distributed in the ambience to air-condition, together with the other conventional automata belonging to the refrigeration circuits of open retail refrigeration cabinets; which permits the temperature of the air to be maintained in the vicinity of the open retail refrigeration cabinets or lines of same under certain pre-established conditions; generating a microclimate of comfort for the customers of the retail outlet for the retail of perishable products.
  • a control device (19) which employs certain measuring devices (20, 21) suitably distributed in the ambience to air-condition, together with the other conventional automata belonging to the refrigeration circuits of open retail refrigeration cabinets; which permits the temperature of the air to be maintained in the vicinity of the open retail refrigeration cabinets or lines of same under certain pre-established conditions; generating a microclimate of comfort for the customers of the retail outlet for the retail of perishable products.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Air Conditioning Control Device (AREA)
EP05803586.6A 2005-08-25 2005-10-18 Systeme ameliore de recuperation de chaleur a des fins de climatisation et de reduction du phenomene du couloir froid Expired - Lifetime EP1929902B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05803586T PL1929902T3 (pl) 2005-08-25 2005-10-18 Udoskonalony układ odzysku ciepła przeznaczony do systemów klimatyzacji oraz zmniejszający efekt zimnego korytarza

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200502182A ES2267406A1 (es) 2005-08-25 2005-08-25 Sistema perfeccionado de recuperacion de calor para climatizacion y reduccion del efecto "pasillo frio".
PCT/ES2005/000555 WO2007023194A1 (fr) 2005-08-25 2005-10-18 Systeme ameliore de recuperation de chaleur a des fins de climatisation et de reduction du phenomene du couloir froid

Publications (2)

Publication Number Publication Date
EP1929902A1 true EP1929902A1 (fr) 2008-06-11
EP1929902B1 EP1929902B1 (fr) 2015-06-17

Family

ID=37771251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05803586.6A Expired - Lifetime EP1929902B1 (fr) 2005-08-25 2005-10-18 Systeme ameliore de recuperation de chaleur a des fins de climatisation et de reduction du phenomene du couloir froid

Country Status (10)

Country Link
US (1) US20090255286A1 (fr)
EP (1) EP1929902B1 (fr)
JP (1) JP2009506289A (fr)
CN (1) CN101325892A (fr)
AU (1) AU2005335881A1 (fr)
DK (1) DK1929902T3 (fr)
ES (2) ES2267406A1 (fr)
PL (1) PL1929902T3 (fr)
PT (1) PT1929902E (fr)
WO (1) WO2007023194A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2773020T3 (es) 2011-09-02 2020-07-09 Carrier Corp Sistema de refrigeración y procedimiento de refrigeración que proporciona la recuperación de calor
CN103720244A (zh) * 2013-12-19 2014-04-16 大连三洋冷链有限公司 热泵式的冷热双温陈列柜
USD956112S1 (en) 2020-03-16 2022-06-28 Kps Global Llc Open-walled cooling environment
US12514384B2 (en) 2022-06-03 2026-01-06 Hussmann Corporation Merchandiser with supplemental air return
CN116399153A (zh) * 2023-02-27 2023-07-07 清华大学 气体供热回路装置以及气体供热回路的运行方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025681A (en) * 1960-08-15 1962-03-20 John S Booth Moisture controlled refrigerator openings
US3263745A (en) * 1963-06-13 1966-08-02 Emhart Corp Open-front refrigerated display case
US3462966A (en) * 1967-12-05 1969-08-26 Beverage Air Co Condensation removing means for refrigerated cabinets
US3759059A (en) * 1971-12-30 1973-09-18 Schaefer Corp Refrigerated display cabinet
US4519217A (en) * 1983-01-04 1985-05-28 Hussmann Corporation Supermarket environmental control system
JPH0629653Y2 (ja) * 1987-11-18 1994-08-10 サンデン株式会社 熱交換システム
JPH0548039Y2 (fr) * 1989-12-29 1993-12-20
JPH0397125U (fr) * 1990-01-19 1991-10-04
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.
US20030037560A1 (en) * 2001-08-22 2003-02-27 Mark Lane Service case
US7010936B2 (en) * 2002-09-24 2006-03-14 Rini Technologies, Inc. Method and apparatus for highly efficient compact vapor compression cooling
US7357000B2 (en) * 2003-12-05 2008-04-15 Dover Systems, Inc. Display deck for a temperature controlled case

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007023194A1 *

Also Published As

Publication number Publication date
JP2009506289A (ja) 2009-02-12
ES2540259T3 (es) 2015-07-09
EP1929902B1 (fr) 2015-06-17
US20090255286A1 (en) 2009-10-15
ES2267406A1 (es) 2007-03-01
PL1929902T3 (pl) 2015-12-31
DK1929902T3 (en) 2015-07-06
PT1929902E (pt) 2015-08-03
AU2005335881A1 (en) 2007-03-01
CN101325892A (zh) 2008-12-17
WO2007023194A1 (fr) 2007-03-01

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