EP2150758B1 - Backup co2 cooling system - Google Patents

Backup co2 cooling system Download PDF

Info

Publication number
EP2150758B1
EP2150758B1 EP08788178.5A EP08788178A EP2150758B1 EP 2150758 B1 EP2150758 B1 EP 2150758B1 EP 08788178 A EP08788178 A EP 08788178A EP 2150758 B1 EP2150758 B1 EP 2150758B1
Authority
EP
European Patent Office
Prior art keywords
evaporator
cooling system
cold store
mechanical cooling
representative
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
EP08788178.5A
Other languages
German (de)
French (fr)
Other versions
EP2150758A2 (en
Inventor
Olivier Pouchain
Didier Alo
Daniel Fontana
Pierre Kowalewski
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP2150758A2 publication Critical patent/EP2150758A2/en
Application granted granted Critical
Publication of EP2150758B1 publication Critical patent/EP2150758B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/06—Damage
    • 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
    • F25D2700/12—Sensors measuring the inside temperature

Definitions

  • the present invention relates to sites, including shops, restaurants etc ... requiring the presence of a cold room to preserve foodstuffs or other perishable products such as pharmaceutical or biological products.
  • mechanical cold system commonly means a system for compressing, relaxing, condensing and evaporation of a refrigerant fluid. Evaporation of the refrigerant occurs in an evaporator placed in the cold room.
  • the present invention proposes to use this CO 2 storage to compensate for failures of the refrigeration system that keeps the cold room cold.
  • the investment of such a system is relatively low because of the presence of CO 2 for another use.
  • the "backup system" proposed by the present invention can also be considered to overcome management errors of the cold room (door remained open, products introduced into the chamber at a temperature too high). high, etc.) which would lead to a thermal load such that the mechanical cold circuit could no longer maintain an ad-hoc conservation temperature.
  • the backup system would complement the mechanical cold system to try to maintain the desired temperature. This second case may nevertheless be considered as secondary with respect to the primary objectives of the present invention.
  • the user site may agree to use such a backup but under conditions that are not only thermally efficient (so that the liquid CO 2 can effectively allow the products to be maintained under temperature conditions that are safe for the time that the problem causing the failure is solved) but also trying to save the liquid CO 2 that is present on the installation for another use that must be performed also without suffering from this "deviation of CO 2 "for emergency reasons.
  • the invention therefore proposes a backup system during failures of the refrigeration installation of the cold room, using the CO 2 storage already present on the installation for another use, for example already present for the carbonation of beverages.
  • a control system allows the activation (manual or automatic) of the backup system and the regulation of CO 2 consumption.
  • the system can operate as needed for several hours to maintain the cold room at the desired temperature.
  • the emergency system then implements a line that starts from the liquid CO 2 tank to feed an evaporator placed in the cold room and a vaporized CO 2 evacuation (as shown schematically in FIG. figure 1 annexed illustrating the case of a restaurant).
  • the line advantageously comprises a device for regulating the CO 2 flow rate and the evaporation pressure as well as safety elements to prevent excessive pressure.
  • the invention thus relates to a cooling device for a user site having at least one cold room for preserving perishable goods or products, cold room cooled by a mechanical cold system, the user site being provided with a storage tank.
  • this second evaporator has a clean ventilation means allowing the air of the cold room to exchange with the CO 2 evaporation circuit.
  • the triggering of the emergency system may be manual, for example following the observation by a person of the site of a malfunction (for example a visually controlled temperature, for example still following the hearing of an alarm temperature ...), it will be preferred according to the invention an automatic trigger according to one or more of the factors mentioned above.
  • the figure 2 Hereinafter illustrates an embodiment of the invention, which implements a constant cooling capacity.
  • CO 2 injection is via a solenoid valve (2).
  • the room thermostat (3) in the chamber controls the solenoid valve (2) and the evaporator fan (this is delayed when stopped).
  • the mechanical cold system we have not detailed in this figure the mechanical cold system.
  • a calibrated orifice (4) located at the evaporator outlet makes it possible to obtain a controlled flow rate of CO 2 as a function of the pressure in the reservoir. Positioning it at the outlet of the exchanger makes it possible to limit the flow rate on a gaseous phase and to overcome the fluid inlet conditions in the evaporator (problem of limitation of flow on a fluid in two-phase at a low flow rate ). The flow is directly related to the tank pressure.
  • An overflow (5) maintains the pressure in the evaporator and in the circuit at a higher pressure than the triple CO 2 bridge.
  • the solenoid valve (2) closes, the pressure drops in the evaporator (as well as the temperature) up to the regulator pressure.
  • the evaporation pressure in the evaporator corresponds to the storage pressure, the valves of which are conventionally regulated at around 13.6 bars (temperature of about -30 ° C.).
  • this solution is technically simple, uses conventional equipment, it limits the flow of CO 2 flowing through the evaporator and therefore to know the autonomy. This method does not control the heat exchange in the evaporator. In case it (icing, ventilation impossible because of obstacles left unfortunatly ..., etc.) does not allow vaporization of CO 2 can be obtained a two-phase mixture to the calibrated orifice.
  • the figure also shows a safety solenoid valve (1) and safety valves (6) to protect the CO 2 circuit, as well as a control box for the electrical part.
  • the CO 2 is then sent from the emergency storage via the solenoid valve (2), which thanks to at a fixed flow rate ensures a minimum of autonomy If the temperature of the cold room is restored or if one of the two alarms above disappears, it is ordered to stop the injection of CO 2 .

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)
  • Freezing, Cooling And Drying Of Foods (AREA)

Description

La présente invention est relative aux sites, et notamment aux commerces, restaurants etc... nécessitant la présence d'une chambre froide pour préserver des denrées alimentaires ou autres produits périssables tels des produits pharmaceutiques ou biologiques.The present invention relates to sites, including shops, restaurants etc ... requiring the presence of a cold room to preserve foodstuffs or other perishable products such as pharmaceutical or biological products.

Le besoin de froid est couramment assuré par des systèmes de froid mécanique qui sont susceptibles de pannes. Lorsque celles-ci se produisent, les biens stockés sont en périls si la réparation n'intervient pas rapidement.The need for cold is commonly provided by mechanical cold systems that are susceptible to breakdowns. When these occur, the stored assets are at risk if the repair does not take place quickly.

Cette situation se retrouve par exemple dans le milieu de la restauration rapide avec pour conséquence des coûts associés à la perte des aliments eux-mêmes et à la perte liée au manque d'activité.This situation is reflected, for example, in the fast food industry, with the consequent costs associated with the loss of the food itself and the loss due to lack of activity.

On sait que l'on entend couramment par la notion de « système de froid mécanique » un système permettant la compression, la détente, la condensation et l'évaporation d'un fluide réfrigérant. L'évaporation du réfrigérant se produit dans un évaporateur placé dans la chambre froide.It is known that the notion of "mechanical cold system" commonly means a system for compressing, relaxing, condensing and evaporation of a refrigerant fluid. Evaporation of the refrigerant occurs in an evaporator placed in the cold room.

On pourra notamment se reporter aux documents antérieurs suivants :

  • le document US2002/174666 concerne le transport frigorifique de produits et le contrôle de la température dans la chambre froide de tels véhicules, le document proposant la mise en oeuvre combinée d'un système de froid « hybride », i.e un système de froid mécanique, et un évaporateur d'un fluide cryogénique tel le CO2 liquide, l'intervention du cryogène liquide étant déclenchée quand les capacités frigorifiques du système de froid mécanique sont jugées insuffisantes par le système de contrôle, notamment durant les phases dites de « descente rapide » (« pull down »), pour venir agir en soutien au système de froid mécanique déjà en opération.
  • le document WO2006/129034 concerne une installation et un procédé où le système de froid mécanique fonctionne et est conçu au CO2.
  • le document US-4 060 400 concerne le transport frigorifique de produits et le contrôle de la température dans la chambre froide de tels véhicules, le document proposant la mise en oeuvre combinée d'un système de froid « hybride », i.e un système de froid mécanique, et d'une injection en direct (pulvérisation) d'azote liquide dans la chambre (directe et non par l'intermédiaire d'un échangeur de vaporisation), l'intervention de l'azote liquide étant notamment déclenchée quand la température dans la chambre passe au dessus d'une limite basse ou encore en cas de défaillance du système de froid mécanique.
In particular, reference may be made to the following earlier documents:
  • the document US2002 / 174666 relates to the refrigerated transport of products and the control of the temperature in the cold room of such vehicles, the document proposing the combined implementation of a "hybrid" cold system, ie a mechanical cold system, and an evaporator of a cryogenic fluid such as liquid CO 2 , the intervention of the liquid cryogen being triggered when the cooling capacities of the mechanical cooling system are considered insufficient by the control system, especially during the so-called "rapid down" phases ("pull down" ), to act in support of the mechanical cooling system already in operation.
  • the document WO2006 / 129034 concerns an installation and a process where the mechanical cold system operates and is designed for CO 2 .
  • the document US-4,060,400 relates to the refrigerated transport of products and the control of the temperature in the cold room of such vehicles, the document proposing the combined implementation of a "hybrid" cold system, ie a mechanical cold system, and an injection live (spraying) liquid nitrogen in the chamber (direct and not via a vaporization exchanger), the intervention of liquid nitrogen being triggered in particular when the temperature in the chamber passes over a limit low or in case of failure of the mechanical cooling system.

Pour limiter donc, dans de telles chambres froides refroidies par froid mécanique, les effets négatifs des pannes éventuelles, une maintenance efficace, rapide d'intervention, est nécessaire. Dans la pratique néanmoins, il est courant que le dépannage ne puisse pas intervenir aussi vite que souhaité et que donc les délais d'intervention ne permettent pas d'éviter des pertes.To limit therefore, in such cold rooms cooled by mechanical cold, the negative effects of possible breakdowns, effective maintenance, rapid intervention, is necessary. In practice, however, it is common that troubleshooting can not occur as quickly as desired and that therefore intervention times do not prevent losses.

Evidemment une des solutions serait de doubler l'installation de froid mécanique avec un groupe de secours. Cette solution, peu économique n'est en pratique pas mise en oeuvre par ce secteur d'activité.Obviously one of the solutions would be to double the mechanical cold installation with a backup group. This uneconomic solution is in practice not implemented by this sector of activity.

Par ailleurs, on sait que certains de ces commerces tels les restaurants, utilisent du CO2 par ailleurs sur le site, par exemple pour la carbonatation des boissons du restaurant, et disposent ainsi d'une réserve de CO2, stocké sous pression sous forme liquide et qui possède un pouvoir frigorifique lorsqu'il est évaporé.Moreover, we know that some of these businesses, such as restaurants, use CO 2 elsewhere on the site, for example for carbonating beverages in the restaurant, and thus have a reserve of CO 2 , stored under pressure in the form of carbon dioxide. liquid and which has a cooling capacity when it is evaporated.

Comme on le verra plus en détails ci-dessous, la présente invention propose d'utiliser ce stockage de CO2 pour palier aux pannes du système frigorifique qui maintient en froid la chambre froide. L'investissement d'un tel système est relativement faible du fait de la présence de CO2 pour une autre utilisation.As will be seen in more detail below, the present invention proposes to use this CO 2 storage to compensate for failures of the refrigeration system that keeps the cold room cold. The investment of such a system is relatively low because of the presence of CO 2 for another use.

Parmi les technologies de refroidissement évoquées par la littérature (au sens où un fluide froid absorbe de la chaleur d'un produit), il se trouve des applications faisant appel à du CO2 stocké sous forme liquide et qui par évaporation produit un effet frigorifique. Certaines applications utilisent le CO2 pour refroidir ou maintenir en froid des chambres (ou caissons) contenant des denrées alimentaires.Among the cooling technologies mentioned in the literature (in the sense that a cold fluid absorbs heat from a product), there are applications using CO 2 stored in liquid form and which by evaporation produces a cooling effect. Some applications use CO 2 to cool or keep in cold rooms (or boxes) containing foodstuffs.

On peut à titre illustratif citer les documents suivants : US-6 062 030 , US2002/0129613A , EP-0652409 A1 . La particularité de ces systèmes antérieurs est donc l'utilisation d'un fluide cryogénique pour refroidir des produits et assister les systèmes primaires de froid mécanique. Les applications visées sont le plus souvent dans le transport de marchandises. En tout état de cause il faut signaler qu'aucun de ces documents ne décrit ni ne suggère l'intérêt de mettre en oeuvre un stockage de CO2 liquide déjà présent sur l'installation pour une autre utilisation pour servir de secours à une installation principale de froid mécanique dans des conditions contrôlées et performantes, tant thermiquement qu'économiquement dans l'utilisation économique du CO2.The following documents can be cited for illustrative purposes: US-6,062,030 , US2002 / 0129613A , EP-0652409 A1 . The peculiarity of these prior systems is the use of a cryogenic fluid to cool products and assist primary systems of mechanical cold. The applications targeted are most often in the transport of goods. In any case, it must be pointed out that no of these documents neither describes nor suggests the interest of implementing a liquid CO 2 storage already present on the installation for another use to serve as a backup to a main mechanical cold installation under controlled and efficient conditions, both thermally than economically in the economical use of CO 2 .

On conçoit en effet qu'il est insuffisant d'utiliser simplement une mesure de température à l'intérieur de la chambre refroidie par le groupe frigorifique (froid mécanique) à titre d'alerte et de simplement déclencher la mise en oeuvre du CO2 liquide de secours quand cette température est en deçà d'une température de consigne. En effet, à titre illustratif, à quoi servirait de déclencher le secours si tout simplement la porte de la chambre froide a été malencontreusement laissée ouverte, cette situation n'est visiblement pas le résultat d'un groupe frigo défectueux.It is conceivable that it is insufficient to simply use a temperature measurement inside the chamber cooled by the refrigeration unit (mechanical cold) as an alert and simply trigger the implementation of liquid CO 2 emergency when this temperature is below a set temperature. Indeed, as an illustration, what would serve to trigger the rescue if simply the door of the cold room was inadvertently left open, this situation is obviously not the result of a faulty fridge group.

En revanche comme on le verra ci-dessous, le « système de secours » que propose la présente invention peut être également envisagé pour palier à des erreurs de gestion de la chambre froide (porte restée ouverte, produits introduits dans la chambre à une température trop élevée, etc.) qui conduirait à une charge thermique telle que le circuit de froid mécanique ne pourrait plus maintenir une température de conservation ad-hoc. Dans ce cas, le système de secours viendrait en complément du système de froid mécanique pour tenter de maintenir la température souhaitée. Ce deuxième cas de figure peut être néanmoins considéré comme secondaire par rapport aux objectifs premiers de la présente invention.On the other hand, as will be seen below, the "backup system" proposed by the present invention can also be considered to overcome management errors of the cold room (door remained open, products introduced into the chamber at a temperature too high). high, etc.) which would lead to a thermal load such that the mechanical cold circuit could no longer maintain an ad-hoc conservation temperature. In this case, the backup system would complement the mechanical cold system to try to maintain the desired temperature. This second case may nevertheless be considered as secondary with respect to the primary objectives of the present invention.

Par ailleurs on conçoit également que le site utilisateur puisse être d'accord pour utiliser un tel secours mais dans des conditions non seulement efficaces thermiquement (pour que le CO2 liquide puisse effectivement permettre le maintien des produits dans des conditions de température hors dangerosité le temps que le problème à l'origine de la panne soit solutionné) mais aussi en tentant tout de même d'économiser le CO2 liquide qui est présent sur l'installation pour une autre utilisation qui doit être réalisée également sans souffrir de cette « déviation de CO2 » pour des motifs de secours.Furthermore, it is also conceivable that the user site may agree to use such a backup but under conditions that are not only thermally efficient (so that the liquid CO 2 can effectively allow the products to be maintained under temperature conditions that are safe for the time that the problem causing the failure is solved) but also trying to save the liquid CO 2 that is present on the installation for another use that must be performed also without suffering from this "deviation of CO 2 "for emergency reasons.

L'invention propose donc un système de secours lors des pannes de l'installation frigorifique de la chambre froide, utilisant le stockage de CO2 déjà présent sur l'installation pour une autre utilisation, par exemple déjà présent pour la carbonatation des boissons.The invention therefore proposes a backup system during failures of the refrigeration installation of the cold room, using the CO 2 storage already present on the installation for another use, for example already present for the carbonation of beverages.

Comme on le verra plus en détails ci-dessous, un système de commande permet le déclenchement (manuel ou automatique) du système de secours et la régulation de la consommation du CO2. Le système peut fonctionner au besoin plusieurs heures pour maintenir la chambre froide à la température désirée.As will be seen in more detail below, a control system allows the activation (manual or automatic) of the backup system and the regulation of CO 2 consumption. The system can operate as needed for several hours to maintain the cold room at the desired temperature.

Le système de secours met alors en oeuvre une ligne qui part du réservoir de CO2 liquide pour alimenter un évaporateur placé dans la chambre froide et une évacuation du CO2 vaporisé (tel que schématisé dans la figure 1 annexée qui illustre le cas d'un restaurant).The emergency system then implements a line that starts from the liquid CO 2 tank to feed an evaporator placed in the cold room and a vaporized CO 2 evacuation (as shown schematically in FIG. figure 1 annexed illustrating the case of a restaurant).

La ligne comporte avantageusement un dispositif de régulation du débit de CO2 et de la pression d'évaporation ainsi que des éléments de sécurité pour prévenir une pression excessive.The line advantageously comprises a device for regulating the CO 2 flow rate and the evaporation pressure as well as safety elements to prevent excessive pressure.

Le système peut être régulé / commandé par un ou plus paramètres parmi notamment :

  • des informations prises au niveau du système de froid mécanique pour déclencher l'envoi du CO2 liquide (par exemple température à l'intérieur de la chambre, température prise dans un produit factice présent dans la chambre, témoin de non-fonctionnement du compresseur, témoin du niveau de la pression d'aspiration du compresseur, témoin du fait que le système n'est pas en mode dégivrage alors qu'il le devrait compte tenu par exemple de phases de dégivrages automatiques prévues dans le fonctionnement de la chambre, un témoin d'ouverture de la porte, etc....) ;
  • des informations prises sur la ligne d'amenée du CO2 ainsi qu'au niveau de la chambre froide pour réguler le froid produit par le système de secours.
The system can be regulated / controlled by one or more parameters among in particular:
  • information taken at the level of the mechanical cold system to trigger the sending of liquid CO 2 (for example temperature inside the chamber, temperature taken in a dummy product present in the chamber, indicator of non-operation of the compressor, witness of the level of the suction pressure of the compressor, indicating that the system is not in defrosting mode when it should, taking into account for example automatic defrosting phases provided in the operation of the chamber, a witness opening of the door, etc ....);
  • information taken on the CO 2 supply line and at the cold room to regulate the cold produced by the backup system.

Le système de secours est alors avantageusement constitué par les éléments suivants :

  • la chambre froide principale comprend une batterie froide (évaporateur/échangeur) munie de ventilateurs ;
  • un circuit d'évaporation de CO2 liquide positionné dans la chambre froide et comprenant un évaporateur, qui est un second évaporateur indépendant de l'évaporateur du système de froid mécanique,
  • un circuit d'alimentation en CO2 de l'évaporateur et un système d'évacuation du CO2 gazeux qui résultera du passage du CO2 liquide dans ce second évaporateur ;
  • un système de régulation du débit de CO2 alimentant ce second évaporateur ;
  • un système de déclenchement du dispositif de secours i.e de l'alimentation en CO2 de ce second évaporateur en fonction d'une information prise au niveau de la chambre froide.
The emergency system is then advantageously constituted by the following elements:
  • the main cold room includes a cold coil (evaporator / exchanger) equipped with fans;
  • a liquid CO 2 evaporation circuit positioned in the cold chamber and comprising an evaporator, which is a second evaporator independent of the evaporator of the mechanical cold system,
  • a CO 2 supply circuit of the evaporator and a system for evacuating CO 2 gas which will result from the passage of liquid CO 2 in this second evaporator;
  • a system for regulating the CO 2 flow supplying this second evaporator;
  • a triggering system of the backup device ie of the CO 2 supply of this second evaporator as a function of information taken at the level of the cold room.

L'invention concerne alors un dispositif de secours de refroidissement d'un site utilisateur possédant au moins une chambre froide de préservation de denrées ou produits périssables, chambre froide refroidie par un système de froid mécanique, le site utilisateur étant muni d'un réservoir de CO2 liquide utilisé sur le site pour une utilisation primaire, le dispositif de secours étant conforme à à la revendication 1 ci-après.The invention thus relates to a cooling device for a user site having at least one cold room for preserving perishable goods or products, cold room cooled by a mechanical cold system, the user site being provided with a storage tank. CO 2 liquid used on the site for primary use, the backup device according to claim 1 below.

Il est à noter que de préférence ce second évaporateur dispose d'un moyen de ventilation propre permettant à l'air de la chambre froide d'échanger avec le circuit d'évaporation du CO2.It should be noted that preferably this second evaporator has a clean ventilation means allowing the air of the cold room to exchange with the CO 2 evaporation circuit.

On conçoit que si le déclenchement du système de secours peut être manuel , par exemple suite à l'observation par une personne du site d'un dysfonctionnement (par exemple une température contrôlée visuellement, par exemple encore suite à l'audition d'une alarme de température...), on préférera selon l'invention un déclenchement automatique selon l'un ou plusieurs de facteurs évoqués ci-dessus.It is conceivable that the triggering of the emergency system may be manual, for example following the observation by a person of the site of a malfunction (for example a visually controlled temperature, for example still following the hearing of an alarm temperature ...), it will be preferred according to the invention an automatic trigger according to one or more of the factors mentioned above.

On peut donner à titre d'exemple illustratif l'exemple suivant de mise en oeuvre du système de secours dans les conditions suivantes :

  • la pression d'alimentation est fixée à l'aide d'un détendeur, le débit est limité à un débit donné et maximum ;
  • quand la température produit est bonne ou le groupe frigorifique n'est plus en alarme, on arrête l'alimentation de l'échangeur à l'aide du secours CO2.
By way of illustrative example, the following example of implementation of the emergency system can be given under the following conditions:
  • the supply pressure is fixed by means of a pressure reducer, the flow rate is limited to a given and maximum flow rate;
  • when the temperature produced is good or the refrigeration unit is no longer in alarm, the supply of the exchanger is stopped with the aid of the CO 2 emergency.

A titre illustratif également, on donne ci-dessous des exemples typiques de consommation en CO2 en liaison avec le tableau de valeurs ci-dessous.By way of illustration also, typical examples of CO 2 consumption are given below in connection with the table of values below.

Pour une puissance frigorifique de 1 kW la consommation de CO2 est d'environ 12,5 kg/h sous 13 bars.For a cooling capacity of 1 kW the consumption of CO 2 is about 12.5 kg / h under 13 bar.

A cette puissance on compense seulement les entrées de chaleurs de la chambre froide sans tenir compte des ouvertures ou d'une remontée importante de la chambre froide en température. Avec un réservoir de 180 kg si celui-ci est au tiers plein l'autonomie sera inférieure à 5 heures pour un maintien de la chambre froide à -20°C. Avec un réservoir de 275kg l'autonomie sera inférieure à 7 heures. Tableau 1 : Autonomies du CO 2 en fonction de la puissance frigorifique de 1 ou 2 kW en fonction de la capacité restante dans le réservoir Puissance frigorifique 1 kW Compensation des entrées de chaleur Puissance frigorifique 2 kW Puissance frigorifique délivrée par l'évaporateur Type de réservoir 180 kilos 275 kilos 180 kilos 275 kilos Autonomie « niveau à 50 % » 7 heures 11 heures 3 heures 30 5 heures 30 Mini Autonomie « niveau à 75 % » 10 heures 30 16 heures 30 5 heures30 8 heures Moyen At this power it compensates only the heat inputs of the cold room without taking into account the openings or a significant rise of the cold room temperature. With a tank of 180 kg if it is one third full autonomy will be less than 5 hours for a maintenance of the cold room at -20 ° C. With a tank of 275kg the autonomy will be less than 7 hours. <u> Table </ u> 1 <u>: Autonomous CO </ u><sub><u> 2 </ u></sub><u> depending on the cooling capacity of 1 or </ u > 2 <u> kW depending on the remaining capacity in the tank </ u> Cooling capacity 1 kW Compensation of heat inputs Cooling capacity 2 kW Cooling capacity delivered by the evaporator Tank type 180 pounds 275 kilos 180 pounds 275 kilos Autonomy "50% level" 7 hours 11:00 3 hours and 30 minutes 5:30 mini Autonomy "75% level" 10:30 4:30 pm 5 hours30 8 hours Way

La figure 2 ci-après illustre un mode de mise en oeuvre de l'invention, qui met en oeuvre une puissance frigorifique constante. L'injection de CO2 se fait par l'intermédiaire d'une électrovanne (2). Le thermostat d'ambiance (3) situé dans la chambre commande l'électrovanne (2) et le ventilateur de l'évaporateur (celui-ci est temporisé à l'arrêt). Pour des raisons de lisibilité, on n'a pas détaillé sur cette figure le système de froid mécanique.The figure 2 Hereinafter illustrates an embodiment of the invention, which implements a constant cooling capacity. CO 2 injection is via a solenoid valve (2). The room thermostat (3) in the chamber controls the solenoid valve (2) and the evaporator fan (this is delayed when stopped). For reasons of readability, we have not detailed in this figure the mechanical cold system.

Un orifice calibré (4) situé en sortie d'évaporateur permet d'obtenir un débit contrôlé de CO2 en fonction de la pression dans le réservoir. Le fait de le positionner en sortie d'échangeur permet de limiter le débit sur une phase gazeuse et de s'affranchir des conditions d'entrées du fluide dans l'évaporateur (problème de limitation de débit sur un fluide en diphasique à un faible débit). Le débit est directement lié à la pression du réservoir.A calibrated orifice (4) located at the evaporator outlet makes it possible to obtain a controlled flow rate of CO 2 as a function of the pressure in the reservoir. Positioning it at the outlet of the exchanger makes it possible to limit the flow rate on a gaseous phase and to overcome the fluid inlet conditions in the evaporator (problem of limitation of flow on a fluid in two-phase at a low flow rate ). The flow is directly related to the tank pressure.

Un déverseur (5) permet de maintenir la pression dans l'évaporateur ainsi que dans le circuit à une pression supérieure à celui du pont triple du CO2. Quand l'électrovanne (2) se ferme, la pression chute dans l'évaporateur (ainsi que la température) jusqu'à la pression de réglage du déverseur.An overflow (5) maintains the pressure in the evaporator and in the circuit at a higher pressure than the triple CO 2 bridge. When the solenoid valve (2) closes, the pressure drops in the evaporator (as well as the temperature) up to the regulator pressure.

La pression d'évaporation dans l'évaporateur correspond à la pression du stockage dont les soupapes sont traditionnellement réglées au voisinage de 13,6 bars (température de -30°C environ).The evaporation pressure in the evaporator corresponds to the storage pressure, the valves of which are conventionally regulated at around 13.6 bars (temperature of about -30 ° C.).

On peut dire que cette solution est techniquement simple, utilise du matériel classique, elle permet de limiter le débit de CO2 qui circule dans l'évaporateur et donc de connaître l'autonomie. Cette méthode ne contrôle pas l'échange thermique dans l'évaporateur. Au cas où celui-ci (givrage, ventilation impossible à cause d'obstacles laissés de façon malencontreuse..., etc.) ne permet pas la vaporisation du CO2 on peut obtenir un mélange diphasique à l'orifice calibré.It can be said that this solution is technically simple, uses conventional equipment, it limits the flow of CO 2 flowing through the evaporator and therefore to know the autonomy. This method does not control the heat exchange in the evaporator. In case it (icing, ventilation impossible because of obstacles left unfortunatly ..., etc.) does not allow vaporization of CO 2 can be obtained a two-phase mixture to the calibrated orifice.

On visualise sur la figure également une électrovanne de sécurité (1) et des soupapes de sécurité (6) pour protéger le circuit CO2, ainsi qu'un coffret de commande pour la partie électrique.The figure also shows a safety solenoid valve (1) and safety valves (6) to protect the CO 2 circuit, as well as a control box for the electrical part.

A titre illustratif, quand la chambre est perçue en défaut (par exemple en utilisant deux informations d'alarmes : par exemple une information de température d'un produit factice (7) constitué par une sonde de température dans un bloc de polyéthylène, par exemple en combinaison avec une autre information d'alarme liée au fonctionnement du l'installation frigorifique (8), on déclenche alors l'envoi du CO2 à partir du stockage de secours par l'intermédiaire de l'électrovanne (2), qui grâce à un débit fixe garantit un minimum d'autonomie. Si la température de la chambre froide se rétabli ou si une des deux alarmes précitées disparaît, on commande l'arrêt de l'injection de CO2.By way of illustration, when the chamber is perceived to be in fault (for example by using two alarm information: for example a temperature information of a dummy product (7) constituted by a temperature probe in a polyethylene block, for example in combination with other alarm information related to the operation of the refrigeration plant (8), the CO 2 is then sent from the emergency storage via the solenoid valve (2), which thanks to at a fixed flow rate ensures a minimum of autonomy If the temperature of the cold room is restored or if one of the two alarms above disappears, it is ordered to stop the injection of CO 2 .

Claims (5)

  1. Backup cooling device of a user site having at least one cold store for the preservation of foodstuffs or perishable goods, said cold store being cooled by a mechanical cooling system, the user site being equipped with a liquid CO2 tank used on the site for a primary use, the backup system comprising the following elements:
    - a liquid CO2 evaporation circuit positioned in the cold store and comprising an evaporator, which is a second evaporator independent from the evaporator of the mechanical cooling system;
    - a line which supplies, from said tank of liquid CO2, said second evaporator of the evaporation circuit, in order to cause the evaporation of the CO2 and to bring frigories to said goods, the line being provided with a device (2) to control the quantity of CO2 supplied to said second evaporator;
    - an evacuation towards the exterior of the cold store of the CO2 vaporised in said second evaporator;
    - an acquisition means (8) of at least one item of information representative of the functioning or malfunctioning of the mechanical cooling system;
    - a system ("BOX") for the acquisition and processing of data designed to retrieve said at least one representative item of information and to initiate the supply of CO2 of said second evaporator from said tank when the retrieved information is representative of a malfunctioning of the mechanical cooling system,
    and characterised in that it comprises the following elements:
    - an ambient temperature thermostat (3) located in the cold store;
    - a calibrated orifice (4) provided on the CO2 circuit at the output of said second evaporator, designed to receive a controlled flow of CO2 based on the pressure inside the tank;
    - a solenoid valve (2) configured to open and close the CO2 supply to said second evaporator based on the measurement performed by the thermostat;
    - a pressure regulator (5), provided on the CO2 circuit at the output of said second evaporator, capable for making it possible for the pressure in the evaporator and in the circuit to be maintained at a pressure greater than the triple point of the CO2.
  2. Backup device according to claim 1, characterised in that said second evaporator is provided with a specific ventilation means making it possible for the air of the cold store to exchange with the CO2 evaporation circuit.
  3. Backup device according to one of the preceding claims, characterised in that said at least one representative item of information comprises one or more of the following data: a temperature measurement (3) inside the cold store, a temperature measurement taken in a dummy product (7) present in the cold store, a malfunction indicator of the compressor of said mechanical cooling system, an indicator of the suction pressure of said mechanical cooling system, an indicator of the fact that the system is not in defrost mode when it should be, considering for example the automatic defrost phases scheduled in the automatic functioning of the cold store, an indicator of the fact that the door of the cold store is in an open position.
  4. Method for the backup steering of a user site comprising at least one cold store for the preservation of foodstuffs or perishable goods, said cold store being cooled by a mechanical cooling system, the user site being provided with a liquid CO2 tank used on the site for a primary use, whereby the following elements are provided and the following steps are implemented:
    - a liquid CO2 evaporation circuit is provided and positioned in the cold store and comprises an evaporator that is a second evaporator independent from the evaporator of the mechanical cooling system;
    - a line is provided to supply, from said liquid CO2 tank, said second evaporator of the evaporation circuit, so as to cause the evaporation of the CO2, thereby bringing frigories to said goods, the line being provided with a device (2) for controlling the quantity of CO2 supplied to said second evaporator;
    - an evacuation is provided towards the exterior of the cold store of CO2 vaporised in said second evaporator;
    - an acquisition means (8) is provided of at least one item of information representative of the functioning or malfunctioning of the mechanical cooling system;
    - a system ("BOX") is provided for the acquisition and processing of data configured to retrieve said at least one representative item of information and to initiate the CO2 supply of said second evaporator from said tank when the retrieved information is representative of a malfunction of the mechanical cooling system; and
    - when the data acquisition and processing system receives at least one item of information representative of a malfunction of the mechanical cooling system, the supply of said second CO2 evaporator from the storage of liquid CO2 is triggered;
    - the supply of the CO2 evaporator is stopped when said at least one item of information which was received by the data acquisition and processing system and was analysed as being representative of a malfunction of the mechanical cooling system is received once again by the data acquisition and treatment system and is analysed as being representative of a normal functioning of the mechanical cooling system,
    and characterised in that the following elements are provided:
    - an ambient temperature thermostat (3) located in the cold store;
    - a calibrated orifice (4) situated on the CO2 circuit at the output of said second evaporator, capable of making it possible to receive a controlled flow of CO2 based on the pressure inside the tank;
    - a solenoid valve (2) capable of opening and closing the CO2 supply to said second evaporator based on the measurement performed by the thermostat;
    - a pressure regulator (5), situated on the CO2 circuit at the output of said second evaporator, capable of making it possible for the pressure in the evaporator and in the circuit to be maintained at a pressure greater than the triple point of the CO2,
    and in that the following measures are taken:
    - with the solenoid valve, following the reception by the data acquisition and processing system of at least one item of information representative of a malfunction of the mechanical cooling system, the supply of the evaporator with CO2 from the storage of liquid CO2 is triggered;
    - the supply of the second evaporator with CO2 is stopped when said at least one item of information which was received by the data acquisition and processing system and was analysed as being representative of a malfunction of the mechanical cooling system is received once again by the data acquisition and treatment system and is analysed as being representative of a normal functioning of the mechanical cooling system.
  5. Method for the backup steering according to claim 4, characterised in that said at least one representative item of information comprises one or more of the following data:
    a temperature measurement inside the cold store, a temperature measurement taken in a dummy product present in the cold store, a malfunction indicator of the compressor of said mechanical cooling system, an indicator of the suction pressure of said mechanical cooling system, an indicator of the fact that the system is not in defrost mode when it should be, considering for example the automatic defrost phases scheduled in the automatic functioning of the cold store, an indicator of the fact that the door of the cold store is in an open position.
EP08788178.5A 2007-04-25 2008-04-14 Backup co2 cooling system Active EP2150758B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0754680A FR2915559B1 (en) 2007-04-25 2007-04-25 CO2 COOLING EMERGENCY SYSTEM
PCT/FR2008/050660 WO2008142341A2 (en) 2007-04-25 2008-04-14 Backup co2 cooling system

Publications (2)

Publication Number Publication Date
EP2150758A2 EP2150758A2 (en) 2010-02-10
EP2150758B1 true EP2150758B1 (en) 2019-01-23

Family

ID=38896611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08788178.5A Active EP2150758B1 (en) 2007-04-25 2008-04-14 Backup co2 cooling system

Country Status (5)

Country Link
EP (1) EP2150758B1 (en)
ES (1) ES2713490T3 (en)
FR (1) FR2915559B1 (en)
PT (1) PT2150758T (en)
WO (1) WO2008142341A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107091550A (en) * 2016-02-18 2017-08-25 顺丰速运有限公司 Thesaurus system, thesaurus refrigerating method and repository device
GB201604012D0 (en) * 2016-03-08 2016-04-20 Gah Refridgeration Ltd Refridgeration system and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060400A (en) * 1975-08-22 1977-11-29 Henry L. Franke Refrigerated semitrailer truck for long and local deliveries

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6751966B2 (en) * 2001-05-25 2004-06-22 Thermo King Corporation Hybrid temperature control system
FR2886719B1 (en) * 2005-06-02 2007-08-10 Air Liquide METHOD FOR REFRIGERATING A THERMAL LOAD

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060400A (en) * 1975-08-22 1977-11-29 Henry L. Franke Refrigerated semitrailer truck for long and local deliveries

Also Published As

Publication number Publication date
EP2150758A2 (en) 2010-02-10
WO2008142341A2 (en) 2008-11-27
ES2713490T3 (en) 2019-05-22
FR2915559B1 (en) 2012-10-26
WO2008142341A3 (en) 2009-04-02
PT2150758T (en) 2019-03-21
FR2915559A1 (en) 2008-10-31

Similar Documents

Publication Publication Date Title
CA2504542C (en) Refrigeration system
US7886549B2 (en) Refrigeration system
US6775993B2 (en) High-speed defrost refrigeration system
KR101309419B1 (en) Hybrid cooling system for refrigerator vehicles
EP3459770B1 (en) Cryogenic transport of temperature-sensitive products making use of the fuel operating the vehicle engine using a eutectic cold storage module
JP5098472B2 (en) Chiller using refrigerator
EP2150758B1 (en) Backup co2 cooling system
WO2013030006A1 (en) Method and device for refilling a storage tank
US20130269785A1 (en) Indirect-injection method for managing the supply of cryogenic liquid to a truck for transporting heat-sensitive products
US20220204337A1 (en) System and method for pre-cooling fuel dispenser
TW202122724A (en) Hydrogen cooling device, hydrogen supply system, and refrigerator
EP2839227B1 (en) Method for regulating the temperature of the storage chamber for products of an indirect injection vehicle transporting heat-sensitive products
US20230118033A1 (en) Cooling system with a distribution system and a cooling unit
EP2577191B1 (en) Cryogenic cooling method and installaton using liquid co2 and employing tow exchangers in series
WO2010128233A1 (en) Refrigerated transport method and device using an indirect injection of a cryogenic liquid and controlling the frosting of the exchangers
JP2009168445A (en) Ice thermal storage method
EP3907453A1 (en) Cooling device for installation for liquefying gas
WO2016092177A1 (en) Method for managing the supply of cryogenic liquid to a truck for transporting heat-sensitive products
EP3501865B1 (en) Method for managing the operation of a refrigerated transport truck of the indirect injection type for heat-sensitive products
FR3012092A1 (en) CONTROL METHOD FOR HEATING AND MAINTENANCE AT POSITIVE TEMPERATURE OF A CRYOGENIC REFRIGERATION TRANSPORT BOX
WO2013182766A1 (en) Method for managing the operation of refrigerated trucks using indirect injection of cryogenic liquid
EP3339766A1 (en) De-icing method for exchanger of a cryogenic cooling system
JP2010060257A (en) Heat source system and control method for the same
EP3046788B1 (en) Method of managing the operation of a refrigerated truck for transporting heat-sensitive products by modifying the refrigeration power
FR2555714A1 (en) Refrigeration installation having a safe-operation device for foodstuffs kept at low temperature

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

17P Request for examination filed

Effective date: 20091125

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17Q First examination report despatched

Effective date: 20100319

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180810

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

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: VALIPAT S.A. GEVERS SA, CH

Ref country code: AT

Ref legal event code: REF

Ref document number: 1091761

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008058859

Country of ref document: DE

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 2150758

Country of ref document: PT

Date of ref document: 20190321

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20190304

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: RUE DES NOYERS 11, 2000 NEUCHATEL (CH)

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2713490

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20190522

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

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190423

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1091761

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190123

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

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190523

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190423

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008058859

Country of ref document: DE

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

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

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: LU

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

Effective date: 20190414

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

26N No opposition filed

Effective date: 20191024

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

Ref country code: FR

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

Effective date: 20190430

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

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

Ref country code: IE

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

Effective date: 20190414

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190123

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20080414

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

Ref country code: NL

Payment date: 20240418

Year of fee payment: 17

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

Ref country code: GB

Payment date: 20240418

Year of fee payment: 17

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

Ref country code: DE

Payment date: 20240418

Year of fee payment: 17

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

Ref country code: CH

Payment date: 20240501

Year of fee payment: 17

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

Ref country code: ES

Payment date: 20240524

Year of fee payment: 17

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

Ref country code: IT

Payment date: 20240419

Year of fee payment: 17

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

Ref country code: PT

Payment date: 20240404

Year of fee payment: 17

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

Ref country code: BE

Payment date: 20240418

Year of fee payment: 17