EP1256769A1 - Kühl- und/oder Heizeinheiten - Google Patents

Kühl- und/oder Heizeinheiten Download PDF

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Publication number
EP1256769A1
EP1256769A1 EP01304117A EP01304117A EP1256769A1 EP 1256769 A1 EP1256769 A1 EP 1256769A1 EP 01304117 A EP01304117 A EP 01304117A EP 01304117 A EP01304117 A EP 01304117A EP 1256769 A1 EP1256769 A1 EP 1256769A1
Authority
EP
European Patent Office
Prior art keywords
coils
enclosure
cooling
fan
cooling unit
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Withdrawn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
EP01304117A
Other languages
English (en)
French (fr)
Inventor
How Sea Tiam
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.)
Oyl Research & Development Centre Sdn Bhd
Original Assignee
Oyl Research & Development Centre Sdn Bhd
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 Oyl Research & Development Centre Sdn Bhd filed Critical Oyl Research & Development Centre Sdn Bhd
Priority to EP01304117A priority Critical patent/EP1256769A1/de
Publication of EP1256769A1 publication Critical patent/EP1256769A1/de
Withdrawn legal-status Critical Current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
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel

Definitions

  • the present invention relates to cooling and/or heating units for cooling and/or heating systems, particularly ducted systems.
  • a cooling unit for a refrigerated cooling system comprising an enclosure, a motor-driven fan mounted within the enclosure, and at least two separate cooling coils mounted at different sides of the enclosure, said coils being connected in parallel in a refrigeration circuit of the system to form an evaporator of the system, and the fan being operative to draw air into the enclosure via the coils to be cooled by passage through the coils, with the cooled air being discharged from the enclosure via an outlet.
  • each coil at least partially forms a respective side wall of an enclosure of cuboid shape within which the fan is mounted.
  • the coils may be mounted at opposite sides of the enclosure or at any two or more different sides according to operational and installational requirements.
  • a cooling unit of a refrigerated cooling system comprises an enclosure 2 housing a fan 4 driven by an electric motor 6 preferably also mounted within the enclosure 2.
  • Any suitable form of driving connection can be established between the motor 6 and the fan 4 although in the particular embodiment illustrated this is effected by means of a simple belt drive system comprising a V-belt or other drive belt (not shown) coupling a drive pulley 6a on a shaft of the motor 6 and a driven pulley 4a on a shaft of a rotor of the fan 4.
  • the enclosure 2 is of cuboid form having upper and lower side walls 2a, 2b and four vertical side walls 2c to 2f.
  • cooling is effected using two or more separate coils 8 mounted at different sides of the enclosure, with the different coils 8 being connected in parallel in the cefrigerated cooling circuit
  • the fan 4 is a centrifugal fan having opposed inlets 10 adjacent the respective coils 8, the fan 4 discharging through an outlet 12 in the upper side wall 2a of the enclosure 2.
  • the upper side wall 2a of the enclosure 2 is adapted to be connected to suitable ducting so that the cooled air is discharged directly from the enclosure 2 into the ducting for subsequent distribution.
  • the fan is a centrifugal fan, other suitable forms of fan could alternatively be used.
  • outlet 12 does not need to be in the upper side wall as illustrated. It could alternatively be in the lower side wall for downwards discharge or in one the vertical side walls for horizontal discharge, depending on installation requirements.
  • a cooling unit with four cooling coils for horizontal discharge may comprise two coils at opposite vertical sides in the manner illustrated, one coil mounted at the upper side and one coil at another one of the vertical sides.
  • the illustrated embodiment provides significant versatility in the arrangement of the two or more separate cooling coils at selected ones of the six sides of the enclosure and this can be varied in accordance with the required cooling capacity and the installation requirements of the unit.
  • the coil 8 may form substantially the entirety of the side wall of the enclosure 2 at the side at which it is mounted or it may be mounted within a frame structure which jointly forms with the coil 8 the side wall.
  • the use of two or more separate coils permits the size of the cooling unit to be substantially reduced without affecting the cooling capacity, with the dead space within the interior of the enclosure being substantially reduced.
  • the reduction in size of the cooling unit not only reduces manufacturing costs, but also substantially reduces transportation costs but also facilitates installation as less space is required for installation and can therefore be fitted into spaces which could not accommodate a conventional cooling unit of equivalent cooling capacity.
  • the invention has been described in relation to a cooling unit, it will be appreciated that in a refrigerated cooling system having a reverse cycle capability so that effectively, the system can then be selectively used as a heating system, the described cooling unit in the reverse cycle mode then becomes a heating unit.
  • the invention is also applicable to the heating unit of a heat pump type heating system operating on a refrigerative cycle whereby the described coils, enclosure, and fan form a heating unit for discharge of heated air via the outlet and into ducting.
  • refrigerant any suitable form of refrigerant may be used in the cooling and/or heating system of which the described cooling and/or heating unit forms a part, in one preferred form the refrigerant is water.

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)
EP01304117A 2001-05-08 2001-05-08 Kühl- und/oder Heizeinheiten Withdrawn EP1256769A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01304117A EP1256769A1 (de) 2001-05-08 2001-05-08 Kühl- und/oder Heizeinheiten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01304117A EP1256769A1 (de) 2001-05-08 2001-05-08 Kühl- und/oder Heizeinheiten

Publications (1)

Publication Number Publication Date
EP1256769A1 true EP1256769A1 (de) 2002-11-13

Family

ID=8181952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01304117A Withdrawn EP1256769A1 (de) 2001-05-08 2001-05-08 Kühl- und/oder Heizeinheiten

Country Status (1)

Country Link
EP (1) EP1256769A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB417456A (en) * 1933-03-29 1934-10-01 Hall & Kay Ltd Improvements in or relating to apparatus for circulating the air and controlling atmospheric conditions in rooms or other enclosures
FR928417A (fr) * 1946-05-24 1947-11-27 Aérofrigorifère de paroi
US4747980A (en) * 1985-10-24 1988-05-31 Transelektro Magyar Villamossagi Kulkereskedelmi Vallalat Cooling apparatus
US5467606A (en) * 1992-10-28 1995-11-21 Kabushiki Kaisha Toshiba Air conditioning apparatus capable of operating in cooling mode and heating mode
US5704221A (en) * 1993-12-02 1998-01-06 Mcinternational Refrigeration exchanger, method for control thereof and cooling installation including such exchanger
EP0834704A2 (de) * 1996-10-03 1998-04-08 Kabushiki Kaisha Toshiba Innenraumeinheit einer Klimaanlage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB417456A (en) * 1933-03-29 1934-10-01 Hall & Kay Ltd Improvements in or relating to apparatus for circulating the air and controlling atmospheric conditions in rooms or other enclosures
FR928417A (fr) * 1946-05-24 1947-11-27 Aérofrigorifère de paroi
US4747980A (en) * 1985-10-24 1988-05-31 Transelektro Magyar Villamossagi Kulkereskedelmi Vallalat Cooling apparatus
US5467606A (en) * 1992-10-28 1995-11-21 Kabushiki Kaisha Toshiba Air conditioning apparatus capable of operating in cooling mode and heating mode
US5704221A (en) * 1993-12-02 1998-01-06 Mcinternational Refrigeration exchanger, method for control thereof and cooling installation including such exchanger
EP0834704A2 (de) * 1996-10-03 1998-04-08 Kabushiki Kaisha Toshiba Innenraumeinheit einer Klimaanlage

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