EP0058782A1 - Tiefkühlgebäude - Google Patents

Tiefkühlgebäude Download PDF

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Publication number
EP0058782A1
EP0058782A1 EP81200229A EP81200229A EP0058782A1 EP 0058782 A1 EP0058782 A1 EP 0058782A1 EP 81200229 A EP81200229 A EP 81200229A EP 81200229 A EP81200229 A EP 81200229A EP 0058782 A1 EP0058782 A1 EP 0058782A1
Authority
EP
European Patent Office
Prior art keywords
cold
tunnel
storage building
air
gap
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Withdrawn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
EP81200229A
Other languages
English (en)
French (fr)
Inventor
Laszlo Váhl
Johannes Van Male
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.)
Stichting Ontwikkeling Koeltechniek
Original Assignee
Stichting Ontwikkeling Koeltechniek
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 Stichting Ontwikkeling Koeltechniek filed Critical Stichting Ontwikkeling Koeltechniek
Priority to EP81200229A priority Critical patent/EP0058782A1/de
Publication of EP0058782A1 publication Critical patent/EP0058782A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/023—Air curtain closures
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof

Definitions

  • the invention has for its object to provide a cold storage building having an air curtain, the properties of which come up better to the theoretical prognostications so that in addition optimizing steps can be taken, for example, with regard to local conditions to be expected whilst the adverse effect of wind is strongly reduced.
  • Fig. 1 shows a cold-storage building 101 according to the invention.
  • the air in the cold space 102 bounded by the front wall 103 and the further walls is cooled by a cooling unit 104, which sucks in air, extracts heat therefrom and gives off the air thus cooled to the cold space.
  • the front wall 103 has a hole 105 joining the ground, and communicating with a tunnel 106 of rectangular cross- section extending in the cold space 102.
  • a suction/blowing unit 107 is arranged on the top wall 109 of the tunnel so that air is sucked in from the cold space 102 and is caused to leave the unit 107 through a blowing-out gap (not shown) covering the whole width of the tunnel 106.
  • the blowing-out gap is slightly directed towards the cold space 1 02.
  • the solid arrows 108 indicate the general shape of the "separating plane" of the air curtain thus formed.
  • the separating plane is that plane which separates the quantities of air flowing in and out near the floor.
  • an embodiment which comprises means for adjusting said angular position of the air inlet gap, said means being controlled by detecting means responding to the air velocity, the direction of the wind and the ambient temperature.
  • the air curtain has a considerably higher immunity to the effect of the wind than the air curtains hitherto employed.
  • FIG. 2 A further improvement is obtained by the embodiment shown in fig. 2.
  • elements corresponding with those of fig. 1 are designated by the same reference numerals.
  • the difference from the cold store of fig. 1 consists in that the vertical tunnel walls 210 and 211 each have a profiled part 215 arid 216 respectively between the blowing gap and the outer end of the tunnel.
  • These profiled parts 215 and 216 are constructed in this embodiment in the form of concave, depressed parts covering the whole height of the tunnel 206.
  • the top wall 209 of the tunnel has a corresponding shape.
  • Fig. 3 shows a cold-storage building 301 according to the invention, in which the tunnel 306 only extends to the outer side.
  • the top wall 309 of the tunnel is provided with four suction/blowing units 318, 319, 320 and 321.
  • the units 319 and 321 together generate an outer air curtain.
  • the units 318 and 320 together generate an inner air curtain.
  • Fig. 4 shows a front wall 403, broken away, of a cold-storage building (not shown in detail).
  • a tunnel 406 extends towards both sides of the wall 403.
  • One side wall 423 is provided with a suction/blowing unit 426 disposed in off-set manner in the direction of length of the tunnel for sucking in air from the ambience. With this disposition two relatively off-set air curtains directed in opposite senses can be generated in the tunnel 406.
  • Figures 3 and 4 show to variants of the cold-storage building according to the invention, which have in common that two air inlet gaps relatively off-set in the direction of length of the tunnel and covering each the whole transverse dimension of the tunnel are provided on the tunnel wall.
  • the gaps are provided in the same wall i.e. the ceiling 309.
  • the gaps are provided in opposite walls, in this case the side walls 423 and 425.
  • the angular position of the gap 531 is adjustable within given limits. Means for fixing the suction/blowing unit 527 in the selected angular position are not shown. The direction of the air stream is indicated by a few arrows.
  • the top wall 609 of a tunnel 606 has a transverse gap 637.
  • the side walls 610, 611 have, at the area of the gap 637, two cylindrically recessed parts 638 and 639 in a manner such that a cylinder 632 having annular recesses 640, 641 corresponding to the parts 638, 639 is held in sealing relationship by the edges of the gap 637 and the parts 638, 639.
  • the cylinder 632 can be guarded against translation by brackets 642, 643 corresponding to the recesses 640, 641 and being fastened in line with the side walls above the top wall 609.
  • the cylinder 632 is hollow and has a blowing-out gap 644 covering the whole length thereof.
  • the cavity 645 of the cylinder 632 is closed on the sideof the side wall 611 and coupled on the other side with a flexible hose 646, which is connected with the blowing-out part of a suction/ blowing unit 647.
  • Fig. 7 shows a variant of the invention having two air inlet gaps extending at least substantially in the transverse direction of the tunnel and covering each substantially the hol transverse dimension thereof, said gaps 748, 749 having the same axial positions in the tunnel on opposite walls.
  • the air is blown through the gaps 748, 749 by two suction/blowing units 750 and 751 respectively.
  • two opposite air streams together form an air curtain as is schematically indicated by arrows.
  • Fig. 9 shows a further variant in which a chamber 7 having heat-insulating walls 13 is disposed on the top wall 1 of the tunnel 8.
  • a blower 14 is arranged inside the chamber 7 and sucks in ambient air 16 to form an air curtain 17.
  • a blower 15 sucks air from the cold space to form an air curtain 18. This embodiment also proves to yield excellent results.
  • Fig. 10 illustrates a tunnel 19 of a cold store according to the invention comprising curtains 22, 23 suspended to rails 20, 2 1 formed by overlapping, flexible strips.
  • the rails can be turned aside around a vertical pivotal shaft 24, 25.
  • the lower edges 26, 27 of the curtains 22, 23 are located at a given distance from the tunnel floor 28. It is thus ensured that an effective operation of the air curtain is not hindered.
  • the curtains ensure a substantially clear view and a free passage, whilst the influence of wind is reduced.
EP81200229A 1981-02-24 1981-02-24 Tiefkühlgebäude Withdrawn EP0058782A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP81200229A EP0058782A1 (de) 1981-02-24 1981-02-24 Tiefkühlgebäude

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81200229A EP0058782A1 (de) 1981-02-24 1981-02-24 Tiefkühlgebäude

Publications (1)

Publication Number Publication Date
EP0058782A1 true EP0058782A1 (de) 1982-09-01

Family

ID=8188109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200229A Withdrawn EP0058782A1 (de) 1981-02-24 1981-02-24 Tiefkühlgebäude

Country Status (1)

Country Link
EP (1) EP0058782A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155924A2 (de) * 1984-03-21 1985-09-25 Ab Bahco Ventilation Luftvorhangseinheit
FR2621887A1 (fr) * 1987-10-20 1989-04-21 Sgn Soc Gen Tech Nouvelle Confinement dynamique et accostage sans contact
EP1184633A1 (de) * 2000-09-01 2002-03-06 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Tiefkühltunnel zur Produktkühlung insbesondere von Lebensmittelprodukten
WO2006008471A1 (en) * 2004-07-21 2006-01-26 The Boc Group Plc Ventilator
JP2017215110A (ja) * 2016-06-01 2017-12-07 富士電機株式会社 エアカーテン装置および冷蔵倉庫

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US774730A (en) * 1903-02-28 1904-11-08 Theophilus Van Kannel Means for excluding drafts from open doorways.
US983877A (en) * 1910-02-02 1911-02-14 Henry H Cummings Air-screen.
US2827266A (en) * 1956-10-31 1958-03-18 V C Patterson & Associates Inc Vestibule for cold storage warehouses
US3023688A (en) * 1958-05-16 1962-03-06 Jr Fred A Kramer Air barrier
US3068775A (en) * 1959-05-13 1962-12-18 Sulzer Ag Control system for an air curtain sealing the entrance of a building
US3143952A (en) * 1960-08-24 1964-08-11 Dualjet Corp Method and apparatus for conditioning gas
US3157105A (en) * 1961-08-01 1964-11-17 Tamm Walter Apparatus for producing an air curtain
US3207056A (en) * 1963-02-05 1965-09-21 Dravo Corp Apparatus for shielding door openings by means of air
US3211078A (en) * 1963-06-06 1965-10-12 Gunnar C F Asker Air curtain
US3215058A (en) * 1962-10-15 1965-11-02 King Company Air curtain apparatus
US3308740A (en) * 1965-01-15 1967-03-14 Disco Eng Inc Draft-free air curtain closure
GB1155880A (en) * 1966-12-08 1969-06-25 Firth Cleveland Ltd Improvements relating to Air Curtain Apparatus
US3608468A (en) * 1969-08-15 1971-09-28 Cloise M Mcclurkin Adjustable air-curtain system
FR2171411A1 (de) * 1972-02-11 1973-09-21 Fordsmand Marc
DE2643299A1 (de) * 1976-09-25 1978-03-30 Wolfgang Mueller Vorrichtung zur selbsttaetigen steuerung von luftabschluessen
DE2736837A1 (de) * 1977-08-16 1979-03-01 Wolfgang Mueller Vorrichtung zum abtrennen von raeumen mittels bewegter luftschichten

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US774730A (en) * 1903-02-28 1904-11-08 Theophilus Van Kannel Means for excluding drafts from open doorways.
US983877A (en) * 1910-02-02 1911-02-14 Henry H Cummings Air-screen.
US2827266A (en) * 1956-10-31 1958-03-18 V C Patterson & Associates Inc Vestibule for cold storage warehouses
US3023688A (en) * 1958-05-16 1962-03-06 Jr Fred A Kramer Air barrier
US3068775A (en) * 1959-05-13 1962-12-18 Sulzer Ag Control system for an air curtain sealing the entrance of a building
US3143952A (en) * 1960-08-24 1964-08-11 Dualjet Corp Method and apparatus for conditioning gas
US3157105A (en) * 1961-08-01 1964-11-17 Tamm Walter Apparatus for producing an air curtain
US3215058A (en) * 1962-10-15 1965-11-02 King Company Air curtain apparatus
US3207056A (en) * 1963-02-05 1965-09-21 Dravo Corp Apparatus for shielding door openings by means of air
US3211078A (en) * 1963-06-06 1965-10-12 Gunnar C F Asker Air curtain
US3308740A (en) * 1965-01-15 1967-03-14 Disco Eng Inc Draft-free air curtain closure
GB1155880A (en) * 1966-12-08 1969-06-25 Firth Cleveland Ltd Improvements relating to Air Curtain Apparatus
US3608468A (en) * 1969-08-15 1971-09-28 Cloise M Mcclurkin Adjustable air-curtain system
FR2171411A1 (de) * 1972-02-11 1973-09-21 Fordsmand Marc
US3859900A (en) * 1972-02-11 1975-01-14 Marc Fordsmand Air curtain system
DE2643299A1 (de) * 1976-09-25 1978-03-30 Wolfgang Mueller Vorrichtung zur selbsttaetigen steuerung von luftabschluessen
DE2736837A1 (de) * 1977-08-16 1979-03-01 Wolfgang Mueller Vorrichtung zum abtrennen von raeumen mittels bewegter luftschichten

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155924A2 (de) * 1984-03-21 1985-09-25 Ab Bahco Ventilation Luftvorhangseinheit
EP0155924A3 (de) * 1984-03-21 1986-01-22 Ab Bahco Ventilation Luftvorhangseinheit
FR2621887A1 (fr) * 1987-10-20 1989-04-21 Sgn Soc Gen Tech Nouvelle Confinement dynamique et accostage sans contact
EP0313455A1 (de) * 1987-10-20 1989-04-26 SOCIETE GENERALE POUR LES TECHNIQUES NOUVELLES S.G.N. Société anonyme dite: Von der Aussenverunreinigung isolierter Raum
EP1184633A1 (de) * 2000-09-01 2002-03-06 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Tiefkühltunnel zur Produktkühlung insbesondere von Lebensmittelprodukten
FR2813661A1 (fr) * 2000-09-01 2002-03-08 Air Liquide Tunnel cryogenique de refrigeration de produits, notamment alimentaires
US6553781B2 (en) 2000-09-01 2003-04-29 L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Cryogenic tunnel for chilling products, especially food products
WO2006008471A1 (en) * 2004-07-21 2006-01-26 The Boc Group Plc Ventilator
JP2017215110A (ja) * 2016-06-01 2017-12-07 富士電機株式会社 エアカーテン装置および冷蔵倉庫

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): BE DE FR GB IT SE

17P Request for examination filed

Effective date: 19830225

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19840903

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VAN MALE, JOHANNES

Inventor name: VAHL, LASZLO