EP0645588A1 - Mehrschichtiger Gasvorhang - Google Patents

Mehrschichtiger Gasvorhang Download PDF

Info

Publication number
EP0645588A1
EP0645588A1 EP94202691A EP94202691A EP0645588A1 EP 0645588 A1 EP0645588 A1 EP 0645588A1 EP 94202691 A EP94202691 A EP 94202691A EP 94202691 A EP94202691 A EP 94202691A EP 0645588 A1 EP0645588 A1 EP 0645588A1
Authority
EP
European Patent Office
Prior art keywords
gas
deep
atmosphere
flows
curtain
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
EP94202691A
Other languages
English (en)
French (fr)
Other versions
EP0645588B1 (de
Inventor
Petrus Josephus Joannes Hubertus Ligtenberg
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.)
Fh Biddle Bv
Original Assignee
Fh Biddle Bv
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 Fh Biddle Bv filed Critical Fh Biddle Bv
Publication of EP0645588A1 publication Critical patent/EP0645588A1/de
Application granted granted Critical
Publication of EP0645588B1 publication Critical patent/EP0645588B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/023—Air curtain closures
    • 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
    • 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
    • F24F2009/007—Use of air currents for screening, e.g. air curtains using more than one jet or band in the air curtain

Definitions

  • the invention relates to a method for keeping gas atmospheres separated.
  • a method for keeping gas atmospheres separated is for instance known for keeping separated the indoor and outdoor atmosphere of a building at the location of the entrance by means of an air curtain.
  • An air curtain device wherein the above stated method is applied is known from EP-A-0 362 958 of applicant.
  • Parallel gas flows mix only with great difficulty, whereby little mixing occurs at the position of the interface and the gas flow therefore retains its energy and composition for a relatively long time.
  • the parallel gas flows can be conditioned such that a gradual temperature transition takes place.
  • the step of claim 2 is preferably applied.
  • the inside gas flow or flows is or are bounded on either side by parallel gas flows so that this inner gas flow or gas flows can extend practically undisturbed to the opposite end of for example a passage opening. A very good separation of the gas atmospheres is hereby obtained on both sides.
  • the outer gas flows form "protective" gas flows for the inner gas flow or flows. Turbulence and intermixing occur at the interfaces between the outer gas flows and the adjacent gas atmospheres, although this has no adverse effect on the energy content and composition of the inner gas flow or flows. This remains or these remain practically undisturbed.
  • Claim 5 gives an exceptionally suitable application of the method according to the invention. It is hereby possible to keep a deep-freeze area with a temperature in the order of magnitude of -20°C effectively separated from the outside atmosphere with a temperature for instance of +20°C. Due to the low temperature the air in the deep-freeze area contains only very little moisture in the absolute sense. By forming the at least one intermediate gas flow from heated air extracted from the deep-freeze area, this intermediate gas flow thus acquires a very low relative humidity. This prevents moisture from condensing in the interface between the outer gas flow adjoining the outside atmosphere and the inner gas flow adjacent thereto, so that mist formation is prevented in effective manner.
  • the invention likewise relates to and provides a gas curtain device as characterized in claim 7.
  • Favourable embodiments of the gas curtain device according to the invention are characterized in the further sub-claims.
  • the figure shows the application of the method by means of a device 4 according to the method at the location of a passage opening 3 between a deep-freeze area 1 and an outside atmosphere 2.
  • the gas atmosphere in deep-freeze area 1 is representatively an air atmosphere of -20°C.
  • the water content of the air is, in view of the low temperature, extremely low.
  • the gas atmosphere in the outside area 2 is the usual outside air atmosphere. In view of the high temperature the air contains a considerably larger quantity of water per unit of volume.
  • a gas curtain is formed, in this case an air curtain, which is composed of a number of parallel gas flows 5, 6 and 7 extending adjacently of each other.
  • These three parallel gas flows 5-7 are formed by means of a gas curtain device 4 which comprises gas transporting means 12-14 which debouch on the underside into elongate gas blow-out members (not further shown).
  • the gas transporting means 12, 13 and 14 are dimensioned and adjusted such that the gas flows 5, 6 and 7 have substantially the same speed and direction.
  • the gas flow 5 which borders on deep-freeze area 1 is formed from air extracted directly from deep-freeze area 1.
  • Gas flow 7 bordering on the atmosphere of the outside area 2 is likewise formed by air extracted directly from the outside area 2.
  • the inner gas flow 6 is formed in this embodiment from air which is likewise drawn from deep-freeze area 1 via the suction aperture 16.
  • Incorporated in the gas transporting means 13 are gas conditioning means which are formed here by heating means. The cold dry air from the deep-freeze area is heated by these heating means to a temperature intermediate that of the deep-freeze area 1 and the outside area 2. The heated air in gas flow 6 has a very low relative humidity.
  • the parallel gas flows 5, 6 and 7 have substantially the same speed and direction. Only a small turbulence and mixing hereby occurs at the position of the interfaces 9 and 10 between respectively gas flows 5 and 6 and gas flows 6 and 7.
  • the middle gas flow 6 retains its energy and composition practically down to the underside of opening 3, whereby an effective separation is obtained.
  • middle gas flow 6 consists in the manner described of conditioned dry air, mist formation is prevented.
  • a fork-lift truck through the passage opening 3 there occurs a stronger mixing of the different gas flows at the position of the interfaces 9 and 10, although transport of air out of the outside area 2 to deep-freeze area 1 is minimal, so that the said mist formation does not occur.
  • the method and device according to the invention are also suitable for other applications.
  • the invention can likewise be appropriately used in the usual application of air curtains for keeping separated the indoor and outdoor atmosphere of a building, as applied in typical manner for store premises and the like. The heat loss due to escape of warm air to the outside is very small with the invention.
  • the method and device are not limited to use with air as gas in the gas flows.
  • Other gas atmospheres can suitably be kept separated.
  • An example of an application can be in a production process in which particular operations must take place in particular gas atmospheres.
  • the different gas atmospheres for the different operational steps can be kept well separated with the method and device according to the invention.
  • Gas can optionally be drawn off on the side of the opening toward which the gas flows are directed.
  • the middle gas flow or flows can then be drawn off so that no or only little gas which is otherwise conditioned can enter the adjoining gas atmospheres.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Treating Waste Gases (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP94202691A 1993-09-27 1994-09-19 Mehrschichtiger Gasvorhang Expired - Lifetime EP0645588B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9301661A NL9301661A (nl) 1993-09-27 1993-09-27 Meervoudig gasgordijn.
NL9301661 1993-09-27

Publications (2)

Publication Number Publication Date
EP0645588A1 true EP0645588A1 (de) 1995-03-29
EP0645588B1 EP0645588B1 (de) 1999-12-15

Family

ID=19862929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202691A Expired - Lifetime EP0645588B1 (de) 1993-09-27 1994-09-19 Mehrschichtiger Gasvorhang

Country Status (6)

Country Link
EP (1) EP0645588B1 (de)
AT (1) ATE187814T1 (de)
DE (1) DE69422115T2 (de)
ES (1) ES2139708T3 (de)
GR (1) GR3032835T3 (de)
NL (1) NL9301661A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6702663B2 (en) 2002-01-09 2004-03-09 Christian Israel Arrangement for producing an air partition
FR2847968A1 (fr) * 2002-11-29 2004-06-04 Jean Louis Bouillet Dispositif de maitrise du degre hygrometrique d'un local notamment un chai abritant des barriques d'elevage du vin
EP1462731A2 (de) 2003-03-24 2004-09-29 LWT Luftwandtechnologie GmbH Luftwand mit doppeltem Luftstrom für Toröffnung
NL1024346C2 (nl) 2003-09-23 2005-03-24 H M C Kruijssen Beheer B V Inrichting voor het genereren van een luchtgordijn.
NL2002108C2 (nl) * 2007-10-16 2009-04-20 Handelsmij Willy Deweerdt Bvba Inrichting voor het genereren van een luchtwand.
BE1018575A3 (fr) * 2008-09-18 2011-04-05 Damseaux Philippe Rideau d'air a recuperation de calories.
WO2013172709A1 (en) * 2012-05-15 2013-11-21 Bendex Airco/Koeltechniek Refrigeration system, use and method for conditioning fresh products
JP2014151681A (ja) * 2013-02-05 2014-08-25 Mitsubishi Electric Corp 車両用空気調和装置
JP2015145756A (ja) * 2014-02-03 2015-08-13 富士電機株式会社 冷蔵倉庫
KR102190094B1 (ko) * 2019-11-21 2020-12-11 이재규 냉동 및 냉장 창고용 도어 연동형 에어커튼장치

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29818548U1 (de) 1998-10-17 1999-02-25 LKS Luft- u. Klimaservice Christian Israel, 09125 Chemnitz Luftschleiereinrichtung mit Luftführungsfrontplatte
DE10029543B4 (de) * 2000-06-15 2006-02-09 Christiani Gmbh Luftschleiergerät
DE10320490A1 (de) * 2003-03-25 2004-10-14 Kampmann Gmbh Vorrichtung zur Erzeugung eines Luftschleiers
DE102004001765A1 (de) * 2004-01-12 2005-08-04 Jochen Schanze Luftschleieranlage
KR100894301B1 (ko) 2007-11-09 2009-04-24 김성호 상하 다단으로 적층 가능한 에어커튼 유닛
PL387085A1 (pl) 2009-01-21 2010-08-02 Flowair Głogowski I Brzeziński Spółka Jawna Kurtyna powietrzna ze strumieniem pomocniczym

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211078A (en) * 1963-06-06 1965-10-12 Gunnar C F Asker Air curtain
EP0447314A1 (de) * 1990-03-14 1991-09-18 Societe Generale Pour Les Techniques Nouvelles S.G.N. Verfahren und Vorrichtung zum dynamischen Trennen von zwei Zonen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756038A (en) * 1972-04-07 1973-09-04 Emhart Corp Refrigerated display equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211078A (en) * 1963-06-06 1965-10-12 Gunnar C F Asker Air curtain
EP0447314A1 (de) * 1990-03-14 1991-09-18 Societe Generale Pour Les Techniques Nouvelles S.G.N. Verfahren und Vorrichtung zum dynamischen Trennen von zwei Zonen

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6702663B2 (en) 2002-01-09 2004-03-09 Christian Israel Arrangement for producing an air partition
FR2847968A1 (fr) * 2002-11-29 2004-06-04 Jean Louis Bouillet Dispositif de maitrise du degre hygrometrique d'un local notamment un chai abritant des barriques d'elevage du vin
WO2004051151A1 (fr) * 2002-11-29 2004-06-17 Jean-Louis Bouillet Dispositif de maîtrise du degre hygrometrique d'un local notamment un chai abritant des barriques d'elevage du vin
EP1462731A2 (de) 2003-03-24 2004-09-29 LWT Luftwandtechnologie GmbH Luftwand mit doppeltem Luftstrom für Toröffnung
NL1024346C2 (nl) 2003-09-23 2005-03-24 H M C Kruijssen Beheer B V Inrichting voor het genereren van een luchtgordijn.
WO2009051482A1 (en) * 2007-10-16 2009-04-23 Handelsmaatschappij Willy Deweerdt Bvba Device for generating an air wall
NL2002108C2 (nl) * 2007-10-16 2009-04-20 Handelsmij Willy Deweerdt Bvba Inrichting voor het genereren van een luchtwand.
CN101828081A (zh) * 2007-10-16 2010-09-08 汉德斯玛特沙皮威利戴维特有限公司 用于产生气壁的设备
EP2518417A1 (de) * 2007-10-16 2012-10-31 Handelsmaatschappij Willy Deweerdt Bvba Vorrichtung zur Erzeugung einer Luftwand
US9551500B2 (en) 2007-10-16 2017-01-24 Handelsmaatschappij Willy Deweerdt Bvba Device for generating an air wall
BE1018575A3 (fr) * 2008-09-18 2011-04-05 Damseaux Philippe Rideau d'air a recuperation de calories.
WO2013172709A1 (en) * 2012-05-15 2013-11-21 Bendex Airco/Koeltechniek Refrigeration system, use and method for conditioning fresh products
JP2014151681A (ja) * 2013-02-05 2014-08-25 Mitsubishi Electric Corp 車両用空気調和装置
JP2015145756A (ja) * 2014-02-03 2015-08-13 富士電機株式会社 冷蔵倉庫
KR102190094B1 (ko) * 2019-11-21 2020-12-11 이재규 냉동 및 냉장 창고용 도어 연동형 에어커튼장치

Also Published As

Publication number Publication date
DE69422115D1 (de) 2000-01-20
DE69422115T2 (de) 2000-04-13
NL9301661A (nl) 1995-04-18
ATE187814T1 (de) 2000-01-15
GR3032835T3 (en) 2000-07-31
EP0645588B1 (de) 1999-12-15
ES2139708T3 (es) 2000-02-16

Similar Documents

Publication Publication Date Title
EP0645588A1 (de) Mehrschichtiger Gasvorhang
US11528852B2 (en) Greenhouse sidewall ventilation system
EP2518417B1 (de) Vorrichtung zur Erzeugung einer Luftwand
AU3923297A (en) Refrigerated container with controlled air distribution
WO2002097338A3 (en) Ventilation method and device
US20100009619A1 (en) Window with a ventilation device
DE4315538C1 (de) Wärmeaustauscher, insbesondere Kühlgerät
US5353601A (en) Structural cooling systems and methods
GB2585014A (en) Structural arrangement, climate control system and method
CA2076959A1 (en) Passive building vents
US6702663B2 (en) Arrangement for producing an air partition
DE10029543B4 (de) Luftschleiergerät
US11957093B2 (en) Greenhouse
JPH05219840A (ja) 複層壁体温室およびその制御方法
JPH04176937A (ja) 家屋の通気装置
JP3081388B2 (ja) 屋内雪層施設における空調設備
GB2239666A (en) Control of thermal or radiation transmission characteristics
NL8200360A (nl) Luchtbehandelingsstelsel voor kas.
JP4173989B2 (ja) 揮発性有機物質の貯蔵または取扱い作業用建物およびその温度・湿度の制御方法
WO1991019137A1 (en) Method for air-conditioning a building and an air-conditioned building
JPH06147556A (ja) 空気調和機
JPS62172138A (ja) 建物の換気構造
DE9108767U1 (de) Klarsicht-Klima-Fenster
CA2388527A1 (en) Ventilation method and device
JPS637630Y2 (de)

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19950928

17Q First examination report despatched

Effective date: 19970530

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 187814

Country of ref document: AT

Date of ref document: 20000115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ARNOLD & SIEDSMA AG

REF Corresponds to:

Ref document number: 69422115

Country of ref document: DE

Date of ref document: 20000120

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2139708

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20030929

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20030930

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040919

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050405

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20130926

Year of fee payment: 20

Ref country code: CH

Payment date: 20130927

Year of fee payment: 20

Ref country code: AT

Payment date: 20130926

Year of fee payment: 20

Ref country code: DE

Payment date: 20130927

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20131003

Year of fee payment: 20

Ref country code: FR

Payment date: 20130926

Year of fee payment: 20

Ref country code: BE

Payment date: 20131001

Year of fee payment: 20

Ref country code: SE

Payment date: 20130930

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20130930

Year of fee payment: 20

Ref country code: IT

Payment date: 20130930

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69422115

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20140919

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20140918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20140920

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 187814

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140919

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20140918

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20150107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20140920