EP3879210B1 - Verfahren zur steuerung des betriebs eines kryogenen tunnels - Google Patents

Verfahren zur steuerung des betriebs eines kryogenen tunnels Download PDF

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Publication number
EP3879210B1
EP3879210B1 EP21160021.8A EP21160021A EP3879210B1 EP 3879210 B1 EP3879210 B1 EP 3879210B1 EP 21160021 A EP21160021 A EP 21160021A EP 3879210 B1 EP3879210 B1 EP 3879210B1
Authority
EP
European Patent Office
Prior art keywords
tunnel
product
fans
cryogenic
speed
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.)
Active
Application number
EP21160021.8A
Other languages
English (en)
French (fr)
Other versions
EP3879210A1 (de
Inventor
Hélène GENSSE
Franck Cousin
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Air Liquide France Industrie SA
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Air Liquide France Industrie 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.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=70228344&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3879210(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude, Air Liquide France Industrie SA filed Critical Air Liquide SA
Publication of EP3879210A1 publication Critical patent/EP3879210A1/de
Application granted granted Critical
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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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/001—Arrangement or mounting of control or safety devices for cryogenic fluid systems
    • 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
    • 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
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F25D3/11—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air with conveyors carrying articles to be cooled through the cooling space
    • 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
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/06—Sensors detecting the presence of a product

Definitions

  • the present invention relates to the field of tunnels using cryogenic fluids, in particular for operations in food, cooling, stiffening, crusting, freezing, etc.
  • cryogen consumption remains high: technical consumption, but also air inlets largely amplified by the convection system which is an integral part of a cryogenic tunnel.
  • the document CN 107 883 631 A discloses a cryogenic cooling assembly in which products circulating on a conveyor are sprayed with liquid nitrogen through nozzles. When a detector does not detect product on the conveyor, the controller of the cooling assembly stops the supply of liquid nitrogen to the nozzles.
  • US 2017/064985 A1 discloses a cryogenic tunnel where the rotation speed of the fans depends on the physical characteristics of the products circulating on the conveyor.
  • the reduction in ventilation frequency prevents the expulsion of gases to the outside, reduces air intake, and also reduces friction in the tunnel atmosphere which is a source of heating and therefore gas consumption.
  • Another advantage is to act on a variator which allows instant return to service.
  • the ventilation system instantly returns to the initial speed in effect before going into standby. And the system will automatically lower the ventilation again if no product is detected for a given duration, a duration for example equivalent to the current passage time (in force), in order to evacuate the products present in the equipment.

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)

Claims (1)

  1. Verfahren zur Steuerung eines kryogenen Tunnels, in dem mithilfe eines Förderers zu kühlende oder tiefzukühlende Produkte zirkulieren, wobei der Tunnel mit Mitteln zur Zuführung eines kryogenen Mediums ausgestattet ist und mit Mitteln zur Belüftung der Innenatmosphäre des Tunnels ausgestattet ist, umfassend die Durchführung der folgenden Maßnahmen:
    - man stellt einen Detektor bereit, der geeignet ist, eine Information abzugeben, der zufolge ein Produkt in den Tunnel eintritt, und eine Information zum Nichteintreffen eines Produkts seit einer gegebenen Sollzeit abzugeben, wobei die Sollzeit mit der aktuell geltenden Durchlaufzeit der Produkte in dem Tunnel zusammenhängt;
    - man stellt einen Regler bereit, der geeignet ist, die Geschwindigkeit der Lüfter zu regeln;
    - man stellt ein System zur Erfassung und Verarbeitung von Daten bereit, das geeignet ist, auf den Regler einzuwirken, und man ordnet eine Begrenzung der Geschwindigkeit der Lüfter an, ohne die Belüftung vollständig zu stoppen, wenn das Erfassungssystem Informationen erhält, denen zufolge:
    - seit der gegebenen Sollzeit kein Produkt in den Tunnel eingetreten ist;
    - und dass das letzte in den Tunnel eingetretene Produkt daraus ausgetreten ist;
    - man die Rückkehr der Geschwindigkeit der Lüfter auf einen Referenzwert anordnet, wenn das Detektionssystem das Eintreffen mindestens eines Produkts in dem Tunnel detektiert.
EP21160021.8A 2020-03-09 2021-03-01 Verfahren zur steuerung des betriebs eines kryogenen tunnels Active EP3879210B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2002314A FR3107948B1 (fr) 2020-03-09 2020-03-09 Procédé de gestion du fonctionnement d’un tunnel cryogénique

Publications (2)

Publication Number Publication Date
EP3879210A1 EP3879210A1 (de) 2021-09-15
EP3879210B1 true EP3879210B1 (de) 2024-01-31

Family

ID=70228344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21160021.8A Active EP3879210B1 (de) 2020-03-09 2021-03-01 Verfahren zur steuerung des betriebs eines kryogenen tunnels

Country Status (6)

Country Link
EP (1) EP3879210B1 (de)
DK (1) DK3879210T3 (de)
ES (1) ES2978820T3 (de)
FR (1) FR3107948B1 (de)
PL (1) PL3879210T3 (de)
PT (1) PT3879210T (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107883631A (zh) * 2017-12-12 2018-04-06 广州鲜之源生态冷链技术有限公司 一种多节点温度调控装置及调控方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748315B1 (fr) * 1996-05-06 1998-06-05 Air Liquide Dispositif de croutage en ligne de produits
FR2801375B1 (fr) * 1999-11-18 2002-02-01 Air Liquide Procede de refroidissement cryogenique de produits de calibre different
US20140230460A1 (en) * 2009-12-22 2014-08-21 Michael D. Newman Heat flux freezer control apparatus and method
CN108489174B (zh) * 2018-04-12 2024-04-19 中铁第四勘察设计院集团有限公司 一种智能开度冷库输送门

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107883631A (zh) * 2017-12-12 2018-04-06 广州鲜之源生态冷链技术有限公司 一种多节点温度调控装置及调控方法

Also Published As

Publication number Publication date
DK3879210T3 (da) 2024-04-22
PL3879210T3 (pl) 2024-06-24
ES2978820T3 (es) 2024-09-20
FR3107948B1 (fr) 2022-02-25
FR3107948A1 (fr) 2021-09-10
EP3879210A1 (de) 2021-09-15
PT3879210T (pt) 2024-04-18

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