EP2672207A2 - Unité de refroidisseur pour chambre de stockage - Google Patents

Unité de refroidisseur pour chambre de stockage Download PDF

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Publication number
EP2672207A2
EP2672207A2 EP13170383.7A EP13170383A EP2672207A2 EP 2672207 A2 EP2672207 A2 EP 2672207A2 EP 13170383 A EP13170383 A EP 13170383A EP 2672207 A2 EP2672207 A2 EP 2672207A2
Authority
EP
European Patent Office
Prior art keywords
storage room
air
cooler unit
cooling
evaporator
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.)
Withdrawn
Application number
EP13170383.7A
Other languages
German (de)
English (en)
Other versions
EP2672207A3 (fr
Inventor
Frank Müller
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.)
Thermofin GmbH
Original Assignee
Thermofin 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 Thermofin GmbH filed Critical Thermofin GmbH
Publication of EP2672207A2 publication Critical patent/EP2672207A2/fr
Publication of EP2672207A3 publication Critical patent/EP2672207A3/fr
Withdrawn legal-status Critical Current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
    • F25D1/00—Devices using naturally cold air or cold water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
    • 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
    • F25D13/00—Stationary devices, e.g. cold-rooms
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F2011/0006—Control or safety arrangements for ventilation using low temperature external supply air to assist cooling

Definitions

  • the invention relates to a storage room cooler unit for cold storage halls or cold storage rooms.
  • products especially foods such as potatoes or fruits, are stored at temperatures below ambient.
  • the air temperatures in the cold stores are lowered by means of refrigeration systems.
  • An efficient way of cooling cold stores or larger cold stores is further to provide a storage room cooler unit, which is as a compact unit in a position to cool an air flow, which is passed into the interior of the storage room.
  • the waste heat of the refrigeration system is thereby released to the environment, for which purpose an external or ambient air flow is used, which is called via the condenser, also known as condenser, the refrigeration system.
  • the object of the invention is to provide a storage room cooler unit which, with a small installation space, permits the alternative use of the refrigeration system or of outside air for cooling.
  • a storage room cooler unit comprising as essential components arranged in a housing refrigeration system with an evaporator and a condenser for generating cooling air by cooling storage room air and that further comprises a storage room fan for conveying the air into a cold room and a Condenser fan is provided for the promotion of outside air for cooling the condenser.
  • the housing has a room air inlet, an outside air inlet, an exhaust air outlet and a cooling air outlet.
  • a louver is arranged in a refrigeration plant operating the storage room air from the room air inlet via the evaporator and the storage room fan to the cooling air outlet into the refrigerator and conductive in aippo Kunststofflessness dess sued the outside air from the outside air inlet via the storage room fan to the cooling air outlet in the refrigerator is made conductive.
  • the concept of the invention is therefore to use the storage space fan as an alternative to promoting the cooling air as cooled circulating air for the storage room or the storage room fan for an outside air cooling at corresponding ambient temperatures.
  • the cooling air for the storage room is thus once in the refrigeration system operation of the storage room air, which is cooled and then released into the storage room, realized.
  • the storage room fans are used by appropriate switching of the air path to draw in outside air and deliver it as cooling air into the storage room. Due to this mode of operation can be low in seasons Ambient temperatures Energy for cooling the storage room can be saved.
  • the louver is designed as a flap, which segmented in the refrigeration system operating position as part of a thermally insulated partition within the housing of the storage room cooling unit this in a hot room and a cold room.
  • the flap is pivotally mounted on one side about a hinge at an angle alpha.
  • the flap in the refrigeration plant operating position, may be arranged at an angle ⁇ obliquely and in the outside air operating position in the vertical, covering the air outlet of the evaporator.
  • the angle alpha is measured from the vertical depending on the structural conditions 10 ° to 30 °.
  • the pivoting about these relatively small deflections has the advantage that only little energy must be expended by means of the adjusting device.
  • the flap is actuated with an actuating device, so that no manual actuation of the flap is required.
  • the adjusting device has proven to be advantageous to design the adjusting device as an electrically operable servomotor and outside air temperature regulated in such a way that that the refrigeration system automatically shuts off in the case of corresponding outside air conditions and the adjusting device moves the flap for the outside air operation. Since the storage room ventilator conveys both the cooled storeroom air and the cold outside air into the cold room, the storage room ventilator must continue to operate even in outdoor air mode.
  • the adjusting device for the louver is arranged in the hot room to prevent condensation, tires or icing on the adjusting device and in particular the moving parts, whereby the reliability can be significantly increased.
  • three storage space ventilators are integrated in the ceiling surface of a parallelepiped storage space cooler unit and it has proven to be advantageous that a defrosting trough is provided in the storage space cooler unit for defrosting the evaporator. For larger or smaller units, more or less storage room fans should be provided accordingly.
  • An advantage of the arrangement of the complete refrigeration in the hot room is that no additional heat input can be done by, for example, radiation losses of the compressor or piping in the cold room.
  • a storage room cooler unit with a compact design is proposed in which the evaporator is designed to be completely integrated.
  • a further advantage is that an integrated cold cut to the site by the storage room wall is realized.
  • control cabinet is mounted on an insulated wall and thus no temperature difference to the mounting wall occurs.
  • the fan arrangement takes place on the evaporator side with a larger wall distance with respect to the storage space wall, whereby a simplified installation of the spiral ducts for the discharge of the cooled or cold air can take place.
  • the inclined main flap arrangement reduces the necessary forces of the servomotors.
  • the support structure with targeted force or force dissipation thus allows a higher absorption of externally introduced loads, for example by on-site air control technology.
  • an inspection opening is provided in the housing, whereby an easy accessibility to the components is achieved.
  • the entire condensed water in the drip tray is deliberately removed.
  • the bottom of the housing is designed thermally insulated to effectively prevent condensation.
  • an air humidification module for humidifying the dry cold air is provided in the storage room cooler unit, which humidifies the dry cold air, especially during outdoor air operation in the cold season, in order to minimize moisture losses in stored goods. This can be counteracted a the value of the stored material mitigating dehydration.
  • To control the humidification sensors are provided for the room and product humidity and temperature.
  • the designed as a thermally insulated flap louver is designed for large storage room cooler units split for better coordination of intermediate and mixed positions, which improves the handling.
  • the housing and the entire construction is designed to be statically stable, since the air distribution pipes adjoining the storage room fan have a very high weight, which must be taken up and carried by the storage room cooler unit.
  • FIG. 1 a storage room chiller unit 1 is shown in the refrigeration plant operating position.
  • the storage room air 10 which flows into the housing 2 of the storage room cooler unit 1 via the room air inlet 17, is cooled in the evaporator 3 and flows through the cold air path in the cold room 13.
  • the storage room ventilator 5 sucks the cooled air and conducts it via the cooling air outlet 18 as cooling air 9 in the refrigerator 14 back. In this way, the desired cooling temperature of the cooling space 14 is maintained and any losses due to heat from the outside are compensated.
  • the condenser 4 of the refrigeration system and the exhaust air outlet 20 is arranged integrated in the hot room 12 of the housing 2 of the storage room chiller unit 1.
  • a condenser fan 6 conveys the air.
  • the storage room cooler unit 1 is integrated into the cooling space 14 and forms a thermal boundary with the surroundings 15 via the dividing wall 16 in the corresponding areas to the surroundings 15.
  • a partition wall 16 which is thermally insulated.
  • a part of the partition wall 16 is formed by a thermally insulated flap 7, which is pivotally mounted by means of a hinge 21 on one side with a pivoting angle alpha.
  • the pivoting of the flap 7 takes place by means of an adjusting device 8, which is designed by an electric motor.
  • FIG. 2 is a previously described storage room chiller unit 1 according to FIG. 1 shown schematically, in contrast to the representation in FIG. 1 now the outside air operating position is shown.
  • the outdoor air operating position is characterized in that the entire refrigeration system and thus the evaporator 3 and the condenser 4 need not be operated, since the outside air 11 for cooling the cooling space 14 already has a corresponding temperature level.
  • the outside air 11 is sucked in via the outside air inlet 19 when the flap 7 opened vertically by the adjusting device 8 is moved by the storage room ventilator 5 and is led via the cooling air outlet 18 directly into the cooling space 14 as cooling air 9.
  • the storage room fan 5 is used in a dual function to once in the refrigeration plant operating position, the cooling air 9 from the storage room air 10, which is cooled in the evaporator 3, and on the other hand in the criztivus horrinsky horrinsky horrinsky horrinsky horrinsky horrinsky horrinsky horrinsky vsunsky vsunsky vsunsky vsunsky vsunsky vsunsky vsunsky vity of the refrigerator 14.
  • the operating position switching enabled by means of the flap 7 achieves considerable energy savings, since ambient air can be used optimally in terms of energy for cooling, in particular in cold rooms and cold stores with moderately low temperatures of, for example, -5 ° C. to 15 ° C.
  • FIG. 3 is a storage room cooler unit 1 with the components according to the FIGS. 1 and 2 shown.
  • the embodiment after FIG. 3 characterized in that the thermally insulated flap 7 each assumes oblique end positions during the pivoting movement.
  • the refrigeration plant operating position is in the FIGS. 1 and 2 analogously, only in the outside air operating position, the flap 7 is also moved to an oblique end position with respect to the vertical.
  • the swivel angle is approximately twice the angle alpha.
  • This embodiment has the advantage that a sealing action of the flap 7 in the respective frame element in both operating positions by gravity, which must be realized in the embodiment described above with a vertical end position by the adjusting device.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP13170383.7A 2012-06-07 2013-06-04 Unité de refroidisseur pour chambre de stockage Withdrawn EP2672207A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012102092U DE202012102092U1 (de) 2012-06-07 2012-06-07 Lagerraumkühlereinheit

Publications (2)

Publication Number Publication Date
EP2672207A2 true EP2672207A2 (fr) 2013-12-11
EP2672207A3 EP2672207A3 (fr) 2018-02-07

Family

ID=46605445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13170383.7A Withdrawn EP2672207A3 (fr) 2012-06-07 2013-06-04 Unité de refroidisseur pour chambre de stockage

Country Status (2)

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EP (1) EP2672207A3 (fr)
DE (1) DE202012102092U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016117913B4 (de) 2016-09-22 2022-08-11 Güntner Gmbh & Co. Kg Kühleinrichtung zur Kühlung von begehbaren Kühlräumen und Wärmeübertrageranordnung zur Verwendung in einer solchen Kühleinrichtung
DE202016105281U1 (de) * 2016-09-22 2018-01-09 Güntner Gmbh & Co. Kg Kühleinrichtung zur Kühlung von begehbaren Kühlräumen und Wärmeübertrageranordnung zur Verwendung in einer solchen Kühleinrichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993014359A1 (fr) 1992-01-17 1993-07-22 Société Nouvelle Des Transports Alain Martin (Sarl) Procede et installations d'obtention d'une atmosphere froide, dans une enceinte refrigeree, sans formation de givre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1451041A1 (de) * 1963-01-05 1969-03-20 Stierlen Werke Ag Universal-Kuehleinheit
US5709100A (en) * 1996-08-29 1998-01-20 Liebert Corporation Air conditioning for communications stations
DE102008054081B4 (de) * 2008-10-31 2011-02-03 Seifert Mtm Systems Malta Ltd. Verfahren zum Klimatisieren eines Schaltschrankes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993014359A1 (fr) 1992-01-17 1993-07-22 Société Nouvelle Des Transports Alain Martin (Sarl) Procede et installations d'obtention d'une atmosphere froide, dans une enceinte refrigeree, sans formation de givre

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Publication number Publication date
EP2672207A3 (fr) 2018-02-07
DE202012102092U1 (de) 2012-07-04

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