EP1291594A2 - Automatic supplying device for refrigerating compartment of an isothermal container - Google Patents
Automatic supplying device for refrigerating compartment of an isothermal container Download PDFInfo
- Publication number
- EP1291594A2 EP1291594A2 EP02356146A EP02356146A EP1291594A2 EP 1291594 A2 EP1291594 A2 EP 1291594A2 EP 02356146 A EP02356146 A EP 02356146A EP 02356146 A EP02356146 A EP 02356146A EP 1291594 A2 EP1291594 A2 EP 1291594A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- compartment
- supply
- control
- refrigerant
- automatic
- 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
Links
- 239000003507 refrigerant Substances 0.000 claims description 36
- 239000012530 fluid Substances 0.000 claims description 28
- 239000002826 coolant Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 36
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 17
- 239000001569 carbon dioxide Substances 0.000 abstract description 17
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 17
- 239000007924 injection Substances 0.000 description 17
- 241001631457 Cannula Species 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 6
- 238000000605 extraction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000252254 Catostomidae Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
-
- 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
- F25D3/105—Movable containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0326—Valves electrically actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0337—Heat exchange with the fluid by cooling
-
- 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
- F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
- F25D3/125—Movable containers
Definitions
- the invention relates to isothermal containers internally divided into a lower storage compartment and an upper compartment refrigerant containing a cryogenic fluid or a coolant.
- Isothermal containers are generally equipped with a refrigerant system ensuring the maintaining the temperature of the products they contain.
- cryogenic fluid such as gas carbonic acid, nitrogen or heat transfer fluid, such as a monophasic fluid at low temperature or diphasic, fluids which, whatever their nature, must be introduced into the cooler compartment before the container is loaded and used for the transport and preservation of frozen or fresh products.
- EP-A-826 600 discloses a container whose compartment refrigerant is equipped with a drawer including a mass storage chamber cryogenic and a gas expansion chamber, the first communicating with a means of connection to an external source of carbon dioxide, and the second with means for connection to an external gas suction duct carbonic.
- the storage chamber is itself divided into two parts by a partition wall, namely a part with a bottom diffusing metal, intended to receive the cryogenic mass for the preservation of frozen products, and a portion with an insulating bottom, charged with cryogenic mass for preserving fresh produce.
- a partition wall namely a part with a bottom diffusing metal, intended to receive the cryogenic mass for the preservation of frozen products, and a portion with an insulating bottom, charged with cryogenic mass for preserving fresh produce.
- Each of these parts of the room cryogenic system comprises, in the front wall, connection means with a external source of carbon dioxide.
- the loading of the cryogenic mass is ensured by a device injection device comprising, as described in US-A-5657642, at least a liquid phase carbon dioxide distribution cannula, and a conduit suction of carbon dioxide.
- a device injection device comprising, as described in US-A-5657642, at least a liquid phase carbon dioxide distribution cannula, and a conduit suction of carbon dioxide.
- the cannula and the suction ducts are arranged parallel and protruding from the face of a housing of distribution connected by flexible ducts to a feed station controlled by a control cabinet and this housing is provided with connecting means, magnetic or electromagnetic, cooperating with metal washers fixed against the face front of the refrigerant compartment.
- the present invention aims to provide a feeding device automatic device to ensure the securing of the power supply unit with the refrigerant compartment to be filled, irrespective of the conditions of temperature and hygrometry, while improving staff safety during positioning, injection or filling-emptying maneuvers.
- the connecting means Temporary power supply box with the front wall of the compartment refrigerant are constituted by at least one suction cup protruding from the wall of the housing facing the front wall of the cooler compartment, this or these cups being disposed outside the area or areas with a cannula and being powered by a vacuum circuit equipped with a device measuring the value of the depression, this device reacts on the control cabinet to interrupt vacuum feeding and fluid transfer if depression is insufficient, while that at least one protruding contact sensor housing detects the correct positioning of the supply box relative to the front wall opposite and reacts on the control cabinet so that it controls the supply or the stop means generating the vacuum and thus feeding or stopping the means distributing the fluid refrigerant.
- the process continuous supply by triggering the supply of the solenoid valve arranged on the injection cannula. In the event of a fall in the vacuum during fluid injection, the Feeding process is interrupted.
- suction cups out of the zone of the cannulas, that is to say of the area that can be covered with frost by continuous operation, releases these means of linking the disadvantages of frost and allows, for a positioning normal power supply box relative to the refrigerant compartment, to obtain excellent bonding during injection Moreover, the combination of this link by suction cup with sensors prevents coolant or cryogenic liquid can be diffused into the atmosphere in case of poor coupling of the housing feeding with the compartment.
- the power supply box is associated to a suction box whose mouth opens out facing the front wall of the refrigerant compartment and has substantially the same shapes and dimensions as the mouth connecting means of this compartment, this box being connected by a flexible duct to a stationary suction group whose operation is regulated by the control and control cabinet.
- the suction group is started as soon as the positioning sensors and the vacuum sensors indicate, at the housing of command and control, that everything is in order so that the prior aspiration into the refrigerant compartment is prior to fluid injection and creates a slight depression promoting relaxation of the cryogenic fluid.
- This depression attracts, in the suction box, the carbon dioxide resulting from the relaxation of carbon dioxide in the liquid phase and therefore prevents any diffusion of this gas into the atmosphere and close of the operator.
- Another advantage of this arrangement is that it does not require equipping the drawer means ensuring its perfect seal with the compartment receiving it, which simplifies its construction and reduces its cost.
- the electric motor of the fixed suction group or its power supply circuit is equipped with a connected operating sensor electrically to the control and control cabinet to trigger closing of the solenoid valve in operation, in case of stopping the suction.
- This arrangement provides additional security for the personal and the environment.
- the power supply housing comprises two female hydraulic couplers with self-locking valve transversely spaced and each adapted to cooperate with a male hydraulic coupler with self-locking valve, carried by the front wall of the refrigerant compartment, one of the female couplers being connected, with interposition of a solenoid valve and by a filling duct with a pump, a reserve of refrigerant maintained in condition refrigerant, while the other female coupler is connected, with the interposition of a solenoid valve and via a drain line with pump, to another reception tank fluid from the refrigerant compartment of the container.
- suction-control link combination by contact and vacuum sensors avoids costly refrigerant losses and projection of this fluid on the floor of the workstation.
- a first embodiment of the feed device for container 2 having a lower storage compartment A and a refrigerant upper compartment B.
- This is, for example, constituted by a removable drawer 3 divided into two internal compartments suitable, each, to receive the dry ice and including, the one intended for the conservation of the fresh products, an insulating base, and that intended for the preservation of frozen products, a metallic.
- a drawer of this type does not need to be represented or described further, because it is well known to those skilled in the art.
- the front wall 4 of the drawer 3 is provided, with regard to each internal compartment, a connecting means 5a, 5b with one of the two cannulas 6a, 6b fitted to the feeding device.
- the connecting means are constituted by openings whose shutter is ensured by a seal carried by the container door and bearing against the wall 4 when this door is in the closed position.
- Each cannula is tubular and smooth and able to penetrate into the corresponding opening of the wall.
- the drawer 3 comprises, or is juxtaposed to an opening 8 which is formed between it and the upper wall of the container 2, and which is intended to pass the carbon dioxide gas phase, not converted into snow when injecting carbon dioxide into the cooler compartment.
- the two cannulas 6a, 6b are identical, spaced transversely and protrude from the wall of a distribution box 10 coming opposite the front wall 3 of the refrigerant compartment.
- This case from parallelepipedal general shape, is arranged in a structure of portage and handling 12, also carrying a suction box 13 whose outlet mouth 14 has substantially the same shapes and dimensions as the mouth 8 opposite which she is destined to come.
- connection means between the distribution box 10 and the wall of the refrigerant compartment are constituted by three suckers 15a, 15b, 15c which are arranged on either side of the cannulae 6a and 6b, and in any case outside the zone of these cannulas likely to frost, following continuous use of the device Power.
- a contact detector 16 adapted to come into contact or to detect the front wall 4 of the cooler compartment.
- Each cannula 6a, 6b is powered by a solenoid valve 17a, 17b, itself connected by an internal circuit 18 to a fitting 19, protruding from the housing 10.
- This connection is connected by an outer pipe 20, partly flexible, to a cryogenic fluid reservoir 22, for example liquid phase carbon dioxide.
- Each of the suction cups 15a to 15c is connected by an internal circuit common to a vacuum generator 23, type vacuum pump or VENTURI, equipped of a device 24 for measuring the vacuum in the circuit going to the suction cups.
- This apparatus is connected by an electrical circuit 25 to a control cabinet and control 26, arranged at the workstation, out of the housing.
- solenoid valves 17a, 17d are connected to this cabinet 26 by electrical circuits 27a, 27b.
- the contact sensors 16 are connected by electrical circuits 28 to the cabinet 26.
- the various electrical circuits of the housing lead to a terminal of common connection 29 on which is connected a flexible multi-strand cable in the cabinet 26.
- the suction box 13 is provided with a chimney 13a on which is connected a flexible conduit 30 to an extraction installation 32 comprising a electric motor 33 driving a turbine 34.
- the electric motor, or its circuit power supply 35, coming from the command and control cabinet 26, is equipped with an operating detector 36 which is itself connected to the cabinet 26 by a circuit 37.
- the housing 26 command feeding the suction cups 15a to 15c. Under the effect of the depression that runs through them, these suckers come to press against the front wall with a force that is sufficient to retain the housing, even when it is subjected to a force of reaction opposing the injection pressure which is of the order of 15 to 21 bar.
- the plating of the suction cups is checked, on the one hand, by the device 24 for measuring the vacuum in the vacuum circuit, and secondly, by the contact of the second sensor 16. If both sensors do not emit a contact signal, and / or if the vacuum circuit is subject to insufficient vacuum, the control and control cabinet 26 interrupts the feeding procedure, in order to force the operator to check the reasons justifying these defects.
- control cabinet 26 the power supply of the electric motor 32 to drive the extraction unit, so that the suction box is traversed by a suction flow generating, in the refrigerant compartment B, a slight depression, then immediately after that, controls the supply of the relevant solenoid valve 17a or 17b, previously selected on the control box by means of a two-position selector 38.
- the sensors 16, the measuring device of the depression 24, or the suction operation sensor react on the cabinet 26, it controls the closure of the solenoid valve in use and puts safe installation.
- the solenoid valve used is closed before stopping the extraction group 33, 34 so that the carbon dioxide, not transformed into snow, either completely removed from the refrigerant compartment B, before disconnection of the power supply box.
- the suction cups ensure a perfect fit of the injection box with a force that can be adjusted by adjusting the suction flow rate applied.
- the detector 36 reacts on the control and control cabinet 26, so that it does not does not control the supply of the solenoid valve 17a, 17b in service, if the failure at the beginning of the cycle or stops feeding, if the failure occurs in cycle course.
- the suction mouth 14 of the box 13 is bordered by a sealing lip 40, elastically deformable, such as flexible elastomer, for example silicone. Thanks to its elasticity, this lip comes into perfect contact with the front wall of compartment B, whatever the parallelism of this wall, its surface appearance or the coincidence of the mouth 8 with that 14.
- the device supply includes an additional solenoid valve 42 disposed on the circuit supply 20 from the cryogenic fluid reservoir 22 to the housing 10.
- This solenoid valve is arranged downstream of the manual valve of safety 43, compulsorily arranged at the outlet of the tank. It is connected by a electrical circuit 44 to the control and control cabinet 26.
- This solenoid valve 42 is brought into the closed position, as soon as the feeding device passes into emergency stop, at the request of one of the sensors or detectors, or at the request of the operator.
- the device is equipped with a button 45a emergency stop arranged on the front face of the housing with a button 46 of cycle start, and another emergency stop button 45b disposed on the housing 26.
- the operator no longer to go actuate the manual valve 43 at the outlet of the tank, and sometimes located at more 100 meters from the place of loading of the containers.
- the structure of portage and handling 12 is composed of two side rings 12a, connected one to the other by an upper cross 12b and a lower cross 12c.
- the crossing upper 12b is provided with a ring 47 for hanging the device feeding means to a suspension means such as an arm 48, shown in FIG. suction box 13 is fixed on this cross member 12b by welding or by bolts 48.
- the housing 10 it is placed and fixed in a removable and interchangeable manner on legs 49 carried by each of the rings 12a.
- the housing 10 is disposed below of the box 13 and with a space E which, on the one hand, thermally isolates the box 10 frost forming in the box by the gas at - 40 ° C, and secondly, facilitates the interchangeability of the casing by reducing the time required for its replacement.
- Figure 2 shows that connectors 19 and 29 with cryogenic and electrical fluid, are arranged in an area of the housing all the more easy to access at this location, the box 13 has sections.
- the structure 12 provides a good grip and provides reliable mechanical protection of connectors, buttons, cannulas and suction cups, against possible shocks with containers being handled.
- the embodiment shown in FIG. 4 differs from the previous in that it concerns the distribution of a coolant, monophasic or diphasic.
- the feeding device instead of performing the functions injection and suction, the feeding device ensures the filling function and draining a tray 50 disposed in the compartment B and dimensioned for receive a quantity of fluid corresponding to the conservation needs.
- connection means of this tray 50 with the distribution box 110 are constituted by two hydraulic couplers 52a, 52b, of male type and equipped with shut-off valves 53a, 53b.
- each of these flaps communicates directly with the interior of the tray 50, whether or not it includes one or more partitions or baffles.
- couplers are intended to cooperate with two female couplers 54a, 54b, protruding from the front face of the housing 110. These two couplers are also equipped with self closing shutters. As in the previous embodiment, the couplers 54a, 54b are juxtaposed with suction cups 115a, 115b, 115c and with contact sensors 116 and are connected to solenoid valves 117a and 117d fed, the first, by a filling line 55 and the second by a drain line 56.
- the different suction cups 115a, 115b, 115c are connected by an internal network 57 to 123 means generating vacuum, and for example, to a pump to vacuum or a venturi, this means being equipped with a measuring device 124 of the pressure in the circuit 57.
- the various electrical circuits of the solenoid valves, power sensors of the means 123 are connected to a connector 129, itself connected by a flexible link to a control and control cabinet 126.
- the filling line 55 is connected by a flexible connection 58 and to a pipe 60, to a tank 59 holding the coolant in refrigerant condition.
- the pipe 60 is equipped with a manual valve 143 and a connected solenoid valve 142 by a circuit 144 to the control and control cabinet 126.
- the conduit 60 is equipped with a pump 62 whose supply circuit is controlled by the cabinet 126.
- the emptying duct 53 is connected by a flexible duct 63 to a duct rigid 64, equipped with a pump 65 circulating the fluid towards a reservoir 66. It is obvious that the pump 65 is also controlled by the cabinet 126.
- housing 110 is not associated with a suction box.
- the coupling of the housing 110 with the tank 50 of the refrigerant compartment B is performed with the security provided by the contacts 116, with the plating force provided by the suction cups 115a to 115c with control of the plating force by measuring device 124.
- All the emptying and filling functions are controlled by the control and control cabinet 126, so that the emptying starts slightly before filling and ends a few moments after him.
- the drain line 56 is equipped with a sensor of temperature 67 which is connected to the control and control cabinet 126 by a circuit 68 to trigger the stop filling and emptying when the fluid through the conduit 56 reaches a given temperature, close to the temperature of the fluid contained in the reservoir 59.
- the feeding device has many safeguards that allow a operator, trained or not, to use it safely to inject into the compartment refrigerant of a container, either liquid phase carbon dioxide or a fluid coolant.
- Security management in the control and control cabinet 26, 126 is provided, depending on the applications, by a PLC or a computer card programmable, with the management of a database for calculating times injection.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
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Abstract
Description
L'invention concerne les conteneurs isothermes divisés intérieurement en un compartiment inférieur de conservation et en un compartiment supérieur réfrigérant contenant un fluide cryogénique ou un fluide caloporteur.The invention relates to isothermal containers internally divided into a lower storage compartment and an upper compartment refrigerant containing a cryogenic fluid or a coolant.
Pour pouvoir transporter des produits frais ou surgelés dans de bonnes conditions, et aux températures imposées par les réglementations en vigueur, les conteneurs isothermes sont en général munis de système réfrigérant assurant le maintien en température des produits qu'ils contiennent.To be able to transport fresh or frozen products in good conditions, and at the temperatures imposed by the regulations in force, Isothermal containers are generally equipped with a refrigerant system ensuring the maintaining the temperature of the products they contain.
Ces systèmes peuvent être à base de fluide cryogénique, tel que gaz carbonique, azote ou de fluide caloporteur, tel que fluide monophasique à basse température ou diphasique, fluides qui, quelles que soient leurs natures, doivent être introduits dans le compartiment réfrigérant avant que le conteneur soit chargé et utilisé pour le transport et la conservation de produits surgelés ou frais.These systems can be based on cryogenic fluid, such as gas carbonic acid, nitrogen or heat transfer fluid, such as a monophasic fluid at low temperature or diphasic, fluids which, whatever their nature, must be introduced into the cooler compartment before the container is loaded and used for the transport and preservation of frozen or fresh products.
Le document EP-A-826 600 décrit un conteneur dont le compartiment réfrigérant est équipé d'un tiroir comprenant une chambre de stockage de la masse cryogénique et une chambre de détente du gaz, la première communiquant avec un moyen de raccordement à une source extérieure de dioxyde de carbone, et la seconde avec un moyen de raccordement à un conduit extérieur d'aspiration du gaz carbonique.EP-A-826 600 discloses a container whose compartment refrigerant is equipped with a drawer including a mass storage chamber cryogenic and a gas expansion chamber, the first communicating with a means of connection to an external source of carbon dioxide, and the second with means for connection to an external gas suction duct carbonic.
Dans une variante du tiroir, la chambre de stockage est elle-même divisée en deux parties par une cloison de séparation, à savoir une partie avec un fond métallique diffusant, destiné à recevoir la masse cryogénique pour la conservation de produits surgelés, et une partie avec un fond isolant, chargée en masse cryogénique pour la conservation de produits frais. Chacune de ces parties de la chambre cryogénique comporte, dans la paroi frontale, un moyen de raccordement avec une source extérieure de dioxyde de carbone.In a variant of the drawer, the storage chamber is itself divided into two parts by a partition wall, namely a part with a bottom diffusing metal, intended to receive the cryogenic mass for the preservation of frozen products, and a portion with an insulating bottom, charged with cryogenic mass for preserving fresh produce. Each of these parts of the room cryogenic system comprises, in the front wall, connection means with a external source of carbon dioxide.
Le chargement de la masse cryogénique est assuré par un dispositif d'injection comprenant, comme décrit dans le document US-A-5657642, au moins une canule de distribution de dioxyde de carbone en phase liquide, et un conduit d'aspiration du gaz carbonique. Dans le document WO99/43996, la canule et le conduit d'aspiration sont disposés parallèlement et en saillie de la face d'un boítier de distribution relié par des conduits souples à un poste d'alimentation contrôlée par une armoire de commande et ce boítier est muni de moyens de liaison, magnétiques ou électromagnétiques, coopérant avec des rondelles métalliques fixées contre la face frontale du compartiment réfrigérant.The loading of the cryogenic mass is ensured by a device injection device comprising, as described in US-A-5657642, at least a liquid phase carbon dioxide distribution cannula, and a conduit suction of carbon dioxide. In WO99 / 43996, the cannula and the suction ducts are arranged parallel and protruding from the face of a housing of distribution connected by flexible ducts to a feed station controlled by a control cabinet and this housing is provided with connecting means, magnetic or electromagnetic, cooperating with metal washers fixed against the face front of the refrigerant compartment.
Ce mode de liaison, plus commode que des moyens mécaniques à actionnement manuel, se révèle très sensible au givre qui, dans une utilisation continue, se forme sur les moyens magnétiques ou électromagnétiques, et réduit leur force d'attraction. Il en résulte que, lors de l'injection et par réaction à la force d'injection du dioxyde de carbone en phase liquide, de l'ordre de 21 bars, le dispositif d'injection peut être séparé de la paroi frontale du compartiment avec le risque, par son recul violent de blesser l'opérateur par contact, mais aussi par brûlure par le dioxyde de carbone à une température de l'ordre de ― 40°C à ― 70°C s'échappant dans l'atmosphère. De plus, et même en l'absence de givre, la liaison magnétique nécessite des faces en vis à vis planes et lisses, alors même que les rondelles métalliques portées par le compartiment réfrigérant sont soumises à des variations de position consécutives aux dilatations et contractions de la paroi qui les porte. Il en résulte que, parfois, il est impossible d'assurer la liaison avec l'une des rondelles métalliques et que la retenue du boítier est insuffisante pendant l'injection et peut entraíner la séparation du boítier d'injection et du compartiment avec les risques indiqués ci-dessus.This mode of connection, more convenient than mechanical means to manual actuation, proves to be very sensitive to frost, which in use continuous, is formed on magnetic or electromagnetic means, and reduces their attraction force. As a result, during the injection and by reaction to the force injection of carbon dioxide in the liquid phase, of the order of 21 bar, the injection device can be separated from the front wall of the compartment with the risk, by its violent recoil of hurting the operator by contact, but also by burning by carbon dioxide at a temperature in the range of -40 ° C to -70 ° C escaping into the atmosphere. Moreover, and even in the absence of frost, the link requires flat and smooth faces, even though metal washers carried by the cooler compartment are subject to positional changes resulting from dilations and contractions of the wall door. As a result, sometimes it is impossible to liaise with one of the washers and that the housing retainer is insufficient during the injection and can cause the separation of the injection box and the compartment with the risks indicated above.
La présente invention a pour objet de fournir un dispositif d'alimentation automatique permettant d'assurer la solidarisation du boítier d'alimentation avec le compartiment réfrigérant devant être rempli, quelles que soient les conditions de température et d'hygrométrie, tout en améliorant la sécurité du personnel pendant les manoeuvres de positionnement, d'injection ou de remplissage-vidange.The present invention aims to provide a feeding device automatic device to ensure the securing of the power supply unit with the refrigerant compartment to be filled, irrespective of the conditions of temperature and hygrometry, while improving staff safety during positioning, injection or filling-emptying maneuvers.
A cet effet, dans le dispositif selon l'invention, les moyens de liaison temporaire du boítier d'alimentation avec la paroi frontale du compartiment réfrigérant sont constitués par au moins une ventouse, saillant de la paroi du boítier venant en vis à vis de la paroi frontale du compartiment réfrigérant, cette ou ces ventouses étant disposées hors de la zone ou des zones comportant une canule et étant alimentées par un circuit de vide équipé d'un appareil mesurant la valeur de la dépression, cet appareil réagissant sur l'armoire de commande pour interrompre l'alimentation en vide et le transfert de fluide si la dépression est insuffisante, tandis qu'au moins un capteur de contact saillant du boítier détecte le bon positionnement du boítier d'alimentation par rapport à la paroi frontale en vis à vis et réagit sur l'armoire de commande pour qu'elle commande l'alimentation ou l'arrêt des moyens générant le vide et ainsi l'alimentation ou l'arrêt des moyens distribuant le fluide réfrigérant.For this purpose, in the device according to the invention, the connecting means Temporary power supply box with the front wall of the compartment refrigerant are constituted by at least one suction cup protruding from the wall of the housing facing the front wall of the cooler compartment, this or these cups being disposed outside the area or areas with a cannula and being powered by a vacuum circuit equipped with a device measuring the value of the depression, this device reacts on the control cabinet to interrupt vacuum feeding and fluid transfer if depression is insufficient, while that at least one protruding contact sensor housing detects the correct positioning of the supply box relative to the front wall opposite and reacts on the control cabinet so that it controls the supply or the stop means generating the vacuum and thus feeding or stopping the means distributing the fluid refrigerant.
Avec cet agencement, après que le boítier d'alimentation ait été positionné verticalement et transversalement par engagement de sa canule dans le moyen de raccordement de la paroi frontale, le déplacement du boítier en direction du compartiment, amène d'abord le capteur de positionnement au contact de la paroi frontale en permettant le déclenchement de l'alimentation des moyens générant le vide dans la ou les ventouses. Bien entendu, si le capteur ne réagit pas, ce qui indique un mauvais positionnement du boítier d'alimentation, les ventouses ne sont pas alimentées en vide et le processus d'alimentation du compartiment est arrêté. Pendant le fonctionnement des ventouses, si la valeur de la dépression n'atteint pas le seuil détecté par l'appareil de mesure, les moyens générant le vide ne sont plus alimentés électriquement pour inciter l'opérateur à examiner les raisons de la fuite. Par contre, si la valeur de la dépression correspond au seuil de bon fonctionnement, le processus d'alimentation continue en déclenchant l'alimentation de l'électrovanne disposée sur la canule d'injection. En cas de chute de la dépression pendant l'injection de fluide, le processus d'alimentation est interrompu.With this arrangement, after the power supply has been positioned vertically and transversely by engagement of its cannula in the connecting means of the front wall, moving the housing towards the compartment, first brings the positioning sensor into contact with the wall frontal allowing the triggering of the supply of the means generating the vacuum in the suction cups. Of course, if the sensor does not react, which indicates a bad positioning of the power supply box, the suction cups are not vacuum and the compartment feeding process is stopped. during the operation of the suction cups, if the value of the depression does not reach the threshold detected by the measuring apparatus, the means generating the vacuum are no longer powered electrically to prompt the operator to examine the reasons for the leak. On the other hand, if the value of the depression corresponds to the operating threshold, the process continuous supply by triggering the supply of the solenoid valve arranged on the injection cannula. In the event of a fall in the vacuum during fluid injection, the Feeding process is interrupted.
La disposition des ventouses, hors de la zone des canules, c'est-à-dire de la zone pouvant être recouverte de givre par un fonctionnement continu, libère ces moyens de liaison des inconvénients du givre et permet, pour un positionnement normal du boítier d'alimentation par rapport au compartiment réfrigérant, d'obtenir une excellente liaison pendant l'injection. Par ailleurs, la combinaison de cette liaison par ventouse avec les capteurs empêche que du liquide réfrigérant ou cryogénique puisse être diffusé dans l'atmosphère en cas de mauvais accouplement du boítier d'alimentation avec le compartiment.The arrangement of the suction cups, out of the zone of the cannulas, that is to say of the area that can be covered with frost by continuous operation, releases these means of linking the disadvantages of frost and allows, for a positioning normal power supply box relative to the refrigerant compartment, to obtain excellent bonding during injection Moreover, the combination of this link by suction cup with sensors prevents coolant or cryogenic liquid can be diffused into the atmosphere in case of poor coupling of the housing feeding with the compartment.
Dans une forme d'exécution destinée à coopérer avec un compartiment réfrigérant alimentable en fluide cryogénique et dont la paroi frontale est équipée d'un moyen de raccordement à un conduit d'aspiration, le boítier d'alimentation est associé à un caisson d'aspiration dont la bouche débouche en vis à vis de la paroi frontale du compartiment réfrigérant et a sensiblement les mêmes formes et dimensions que la bouche des moyens de raccordement de ce compartiment, ce caisson étant raccordé par un conduit souple à un groupe fixe d'aspiration dont le fonctionnement est régi par l'armoire de commande et de contrôle.In an embodiment intended to cooperate with a compartment refrigerant which can be supplied with cryogenic fluid and whose front wall is equipped with a means of connection to a suction duct, the power supply box is associated to a suction box whose mouth opens out facing the front wall of the refrigerant compartment and has substantially the same shapes and dimensions as the mouth connecting means of this compartment, this box being connected by a flexible duct to a stationary suction group whose operation is regulated by the control and control cabinet.
Dans cette application, le groupe d'aspiration est mis en marche dès que les capteurs de positionnement et les capteurs de dépression indiquent, au boítier de commande et de contrôle, que tout est en ordre afin que l'aspiration préalable dans le compartiment réfrigérant soit antérieure à l'injection de fluide et crée une légère dépression favorisant la détente du fluide cryogénique. Cette dépression attire, dans le caisson d'aspiration, le gaz carbonique résultant de la détente du dioxyde de carbone en phase liquide et empêche donc toute diffusion de ce gaz dans l'atmosphère et près de l'opérateur.In this application, the suction group is started as soon as the positioning sensors and the vacuum sensors indicate, at the housing of command and control, that everything is in order so that the prior aspiration into the refrigerant compartment is prior to fluid injection and creates a slight depression promoting relaxation of the cryogenic fluid. This depression attracts, in the suction box, the carbon dioxide resulting from the relaxation of carbon dioxide in the liquid phase and therefore prevents any diffusion of this gas into the atmosphere and close of the operator.
Un autre avantage de cet agencement est qu'il ne nécessite pas d'équiper le tiroir de moyens assurant sa parfaite étanchéité avec le compartiment le recevant, ce qui simplifie sa construction et réduit son coût.Another advantage of this arrangement is that it does not require equipping the drawer means ensuring its perfect seal with the compartment receiving it, which simplifies its construction and reduces its cost.
Avantageusement, le moteur électrique du groupe fixe d'aspiration ou son circuit électrique d'alimentation est équipé d'un détecteur de fonctionnement relié électriquement à l'armoire de commande et de contrôle pour déclencher la fermeture de l'électrovanne en fonctionnement, en cas d'arrêt de l'aspiration.Advantageously, the electric motor of the fixed suction group or its power supply circuit is equipped with a connected operating sensor electrically to the control and control cabinet to trigger closing of the solenoid valve in operation, in case of stopping the suction.
Cet aménagement constitue une sécurité supplémentaire pour le personnel et l'environnement.This arrangement provides additional security for the personal and the environment.
Dans une autre forme d'exécution, le boítier d'alimentation comporte deux coupleurs hydrauliques femelles à clapet auto bloquant espacés transversalement et aptes chacun à coopérer avec un coupleur hydraulique mâle à clapet auto bloquant, porté par la paroi frontale du compartiment réfrigérant, l'un des coupleurs femelles étant relié, avec interposition d'une électrovanne et par un conduit de remplissage avec une pompe, à une réserve de fluide réfrigérant maintenue en condition réfrigérante, tandis que l'autre coupleur femelle est relié, avec interposition d'une électrovanne et par un conduit de vidange avec pompe, à une autre réserve d'accueil du fluide provenant du compartiment réfrigérant du conteneur.In another embodiment, the power supply housing comprises two female hydraulic couplers with self-locking valve transversely spaced and each adapted to cooperate with a male hydraulic coupler with self-locking valve, carried by the front wall of the refrigerant compartment, one of the female couplers being connected, with interposition of a solenoid valve and by a filling duct with a pump, a reserve of refrigerant maintained in condition refrigerant, while the other female coupler is connected, with the interposition of a solenoid valve and via a drain line with pump, to another reception tank fluid from the refrigerant compartment of the container.
Dans cette application, la combinaison liaison par ventouse-contrôle par capteurs de contact et de dépression évite les pertes de fluide réfrigérant coûteux et la projection de ce fluide sur le sol du poste de travail.In this application, the suction-control link combination by contact and vacuum sensors avoids costly refrigerant losses and projection of this fluid on the floor of the workstation.
D'autres caractéristiques et avantages ressortiront de la description qui
suit en référence au dessin schématique annexé représentant deux formes d'exécution
du dispositif selon l'invention.
Il va d'abord être procédé, en référence aux figures 1 à 3, à la
description d'une première forme d'exécution du dispositif d'alimentation pour
conteneur 2 comportant un compartiment de conservation inférieur A et un
compartiment supérieur réfrigérant B. Celui-ci est, par exemple, constitué par un
tiroir amovible 3 divisé en deux compartiments internes aptes, chacun, à recevoir de
la neige carbonique et comportant, celui destiné à la conservation des produits frais,
un fond isolant, et celui destiné à la conservation des produits surgelés, un fond
métallique. Un tiroir de ce type n'a pas besoin d'être représenté, ni décrit davantage,
car il est bien connu de l'homme de métier.It will first be proceeded, with reference to FIGS. 1 to 3, to the
description of a first embodiment of the feed device for
container 2 having a lower storage compartment A and a
refrigerant upper compartment B. This is, for example, constituted by a
La paroi frontale 4 du tiroir 3 est munie, en regard de chaque
compartiment interne, d'un moyen de raccordement 5a, 5b avec l'une des deux
canules 6a, 6b équipant le dispositif d'alimentation. Dans cette forme d'exécution, les
moyens de raccordement sont constitués par des ouvertures dont l'obturation est
assurée par un joint porté par la porte du conteneur et venant en appui contre la paroi
frontale 4 lorsque cette porte est en position fermée. Chaque canule est tubulaire et
lisse et apte à pénétrer dans l'ouverture correspondante de la paroi.The front wall 4 of the
Comme le montre la figure 1, le bac tiroir 3 comporte, ou est juxtaposé à
une ouverture 8 qui est ménagée entre lui et la paroi supérieure du conteneur 2, et qui
est destinée à laisser passer le gaz carbonique en phase gazeuse, non transformé en
neige lors de l'injection du dioxyde de carbone dans le compartiment réfrigérant.As shown in Figure 1, the
Comme montré à la figure 2, les deux canules 6a, 6b sont identiques,
espacées transversalement et font saillies de la paroi d'un boítier de distribution 10
venant en vis à vis de la paroi frontale 3 du compartiment réfrigérant. Ce boítier, de
forme générale parallélépipédique, est disposé dans une structure de portage et de
manutention 12, portant également un caisson d'aspiration 13 dont la bouche de sortie
14 a sensiblement les mêmes formes et dimensions que la bouche 8 en face de
laquelle elle est destinée à venir.As shown in FIG. 2, the two
Les moyens de liaison entre le boítier de distribution 10 et la paroi du
compartiment réfrigérant sont constitués par trois ventouses 15a, 15b, 15c qui sont
disposées de part et d'autre des canules 6a et 6b, et en tous cas hors de la zone de ces
canules susceptibles de givrer, suite à une utilisation continue du dispositif
d'alimentation. Au-dessus de chaque canule, est disposé un détecteur de contact 16
apte à venir en contact ou à détecter la paroi frontale 4 du compartiment réfrigérant.
Chaque canule 6a, 6b est alimentée par une électrovanne 17a, 17b, elle-même reliée
par un circuit interne 18 à un raccord 19, saillant du boítier 10. Ce raccord est relié
par une conduite extérieure 20, en partie souple, à un réservoir de fluide cryogénique
22, par exemple de dioxyde de carbone en phase liquide. The connection means between the
Chacune des ventouses 15a à 15c est connectée par un circuit interne
commun à un générateur de vide 23, de type pompe à vide ou VENTURI, équipé
d'un appareil 24 de mesure de la dépression dans le circuit allant aux ventouses. Cet
appareil est relié par un circuit électrique 25 à une armoire de commande et de
contrôle 26, disposé au poste de travail, hors du boítier. De même, les électrovannes
17a, 17d sont reliées à cette armoire 26 par des circuits électriques 27a, 27b. Enfin,
les capteurs de contact 16 sont reliés par des circuits électriques 28 à l'armoire 26. En
pratique, les différents circuits électriques du boítier aboutissent à une borne de
raccordement commune 29 sur laquelle est connecté un câble multibrins souple allant
à l'armoire 26.Each of the
Le caisson d'aspiration 13 est muni d'une cheminée 13a sur laquelle est
raccordé un conduit souple 30 allant à une installation d'extraction 32 comprenant un
moteur électrique 33 entraínant une turbine 34. Le moteur électrique, ou son circuit
d'alimentation électrique 35, parvenant de l'armoire de commande et de contrôle 26,
est équipé d'un détecteur de fonctionnement 36 qui est lui-même raccordé à l'armoire
26 par un circuit 37. Lorsqu'un conteneur 2 est amené au poste de distribution, le
boítier d'alimentation 10 est amené en face de son compartiment réfrigérant B et
positionné manuellement de manière que les canules 6a, 6b coïncident avec les
moyens de raccordement 5a, 5b. L'engagement des canules dans les alésages de ce
moyen positionne verticalement et horizontalement le boítier 10. Dès que l'un des
capteurs 16 vient en contact avec la paroi frontale 4, le boítier 26 commande
l'alimentation des ventouses 15a à 15c. Sous l'effet de la dépression qui les parcourt,
ces ventouses viennent se plaquer contre la paroi frontale avec une force qui est
suffisante pour retenir le boítier, même lorsque celui-ci est soumis à une force de
réaction s'opposant à la pression d'injection qui est de l'ordre de 15 à 21 bars. Le
plaquage des ventouses est vérifié, d'une part, par l'appareil 24 de mesure de la
dépression dans le circuit à vide, et d'autre part, par le contact du deuxième capteur
16. Si les deux capteurs n'émettent pas un signal de contact, et/ou si le circuit à vide
est soumis à une dépression insuffisante, l'armoire de commande et de contrôle 26
interrompt la procédure d'alimentation, afin d'obliger l'opérateur a vérifier les
raisons justifiant ces défauts.The
Si, à ce stade, tout est en ordre, l'armoire de commande 26 commande
l'alimentation du moteur électrique 32 d'entraínement du groupe d'extraction, afin
que le caisson d'aspiration soit parcouru par un débit d'aspiration générant, dans le
compartiment réfrigérant B, une légère dépression, puis immédiatement après cela,
commande l'alimentation de l'électrovanne concernée 17a ou 17b, préalablement
sélectionnée sur le boítier de commande au moyen d'un sélecteur à deux positions 38.If, at this point, everything is in order, the
Si pendant l'injection, les capteurs 16, l'appareil de mesure de la
dépression 24, ou le détecteur de fonctionnement de l'aspiration réagissent sur
l'armoire 26, celle-ci commande la fermeture de l'électrovanne en service et met
l'installation en sécurité.If during the injection, the
A la fin de l'injection qui, de façon connue, a une durée limitée,
déterminée en fonction de divers paramètres, et en particulier, du différentiel de
température avec l'extérieur, de la durée prévisible de conservation, et,
éventuellement de la charge du conteneur, l'électrovanne utilisée est fermée
préalablement à l'arrêt du groupe d'extraction 33, 34 afin que le gaz carbonique, non
transformé en neige, soit totalement évacué du compartiment réfrigérant B, avant
déconnexion du boítier d'alimentation.At the end of the injection which, in known manner, has a limited duration,
determined according to various parameters, and in particular, the differential of
temperature with the outside, predictable shelf life, and,
possibly the load of the container, the solenoid valve used is closed
before stopping the
Il ressort de ce qui précède que la multiplication des sécurités sur le boítier garantit le bon fonctionnement du dispositif d'alimentation et surtout évite que le dioxyde de carbone, en phase liquide ou gazeuse, soit injecté ou distribué dans l'atmosphère avec le risque de blesser l'opérateur. La disposition des ventouses hors des canules protège celles-ci du givre. La déformabilité de leurs jupes permet à celles-ci de se fixer de manière satisfaisante sur toute surface lisse et, en conséquence, supprime toute recherche de parfaite planéité et parallélisme de la paroi frontale du compartiment réfrigérant venant en contact avec elle.It follows from the above that the multiplication of securities on the housing ensures the proper functioning of the feeding device and especially avoids that carbon dioxide, in the liquid or gaseous phase, is injected or distributed in the atmosphere with the risk of hurting the operator. The arrangement of the suction cups out cannulas protect them from frost. The deformability of their skirts allows these to be fixed satisfactorily on any smooth surface and, in Consequently, suppresses any search for perfect flatness and parallelism of the wall front of the refrigerant compartment coming into contact with it.
En outre, les ventouses assurent un maintien parfait du boítier d'injection avec une force qui peut être ajustée par réglage du débit d'aspiration qui leur est appliqué. In addition, the suction cups ensure a perfect fit of the injection box with a force that can be adjusted by adjusting the suction flow rate applied.
En cas de défaillance du moteur électrique 32 du groupe d'extraction, le
détecteur 36 réagit sur l'armoire de commande et de contrôle 26, afin que celle-ci ne
commande pas l'alimentation de l'électrovanne 17a, 17b en service, si la défaillance
s'effectue en début de cycle ou arrête son alimentation, si la défaillance a lieu en
cours de cycle. De préférence, et comme montré à la figure 3, la bouche d'aspiration
14 du caisson 13 est bordée par une lèvre d'étanchéité 40, élastiquement déformable,
tel qu'en élastomère souple, et par exemple en silicone. Grâce à son élasticité, cette
lèvre vient en contact parfait avec la paroi frontale du compartiment B, quel que soit
le parallélisme de cette paroi, son aspect de surface ou la mise en coïncidence de la
bouche 8 avec celle 14.In case of failure of the
De préférence, et comme montré à la figure 2, le dispositif
d'alimentation comprend une électrovanne supplémentaire 42, disposée sur le circuit
d'alimentation 20 allant du réservoir de fluide cryogénique 22 au boítier
d'alimentation 10. Cette électrovanne est disposée en aval de la vanne manuelle de
sécurité 43, obligatoirement disposée en sortie du réservoir. Elle est reliée par un
circuit électrique 44 à l'armoire de commande et de contrôle 26. Cette électrovanne
42 est amenée en position de fermeture, dès que le dispositif d'alimentation passe en
arrêt d'urgence, à la demande de l'un des capteurs ou détecteurs, ou à la demande de
l'opérateur. A cette fin et comme montré figure 1 le dispositif est équipé d'un bouton
d'arrêt d'urgence 45a disposé sur la face avant du boítier avec un bouton 46 de
démarrage de cycle, et d'un autre bouton d'arrêt d'urgence 45b disposé sur le boítier
de commande 26. Ainsi, en cas d'anomalie, et en particulier en cas de fuite ou
d'incident sur le circuit d'alimentation 20 en dioxyde de carbone, l'opérateur n'a plus
à aller actionner la vanne manuelle 43 en sortie du réservoir, et parfois située à plus
de 100 mètres du lieu de chargement des conteneurs.Preferably, and as shown in FIG. 2, the device
supply includes an
Cette multiplication des sécurités réduit considérablement les risques de diffusion de gaz carbonique dans l'atmosphère et, en conséquence, améliore la protection de l'opérateur et de l'environnement.This multiplication of securities considerably reduces the risks of carbon dioxide in the atmosphere and, as a result, improves the protection of the operator and the environment.
Dans la forme d'exécution représentée à la figure 3, la structure de
portage et de manutention 12 est composée de deux anneaux latéraux 12a, reliés l'un
à l'autre par une traverse supérieure 12b et une traverse inférieure 12c. La traverse
supérieure 12b est munie d'un anneau 47 permettant d'accrocher le dispositif
d'alimentation à un moyen de suspension tel qu'un bras 48, montré à la figure 1. Le
caisson d'aspiration 13 est fixé sur cette traverse 12b par soudure ou par des boulons
48. Quant au boítier 10, il est posé et fixé de manière démontable et interchangeable
sur des pattes 49 portées par chacun des anneaux 12a. Le boítier 10 est disposé au-dessous
du caisson 13 et avec une espace E qui, d'une part, isole thermiquement le
boítier 10 du givre se formant dans le caisson par le gaz à ― 40°C, et d'autre part,
facilite l'interchangeabilité du caisson en réduisant le temps nécessaire à son
remplacement. La figure 2 montre que les connecteurs 19 et 29 avec les réseaux de
fluide cryogénique et électrique, sont disposés dans une zone du boítier d'autant plus
facile d'accès qu'à cet endroit, le caisson 13 comporte des pans.In the embodiment shown in FIG. 3, the structure of
portage and handling 12 is composed of two
Enfin, par sa forme, la structure 12 procure une bonne préhension et
assure une protection mécanique fiable des connecteurs, boutons, canules et
ventouses, contre d'éventuels chocs avec les conteneurs en cours de manipulation.Finally, by its shape, the
Dans la description qui suit, les moyens identiques à la forme d'exécution précédente porteront une référence majorée de 100, et les nouveaux moyens et éléments seront référencés à partir de 50.In the following description, the means identical to the form previous execution will carry a reference plus 100, and the new ones means and elements will be referenced from 50.
La forme d'exécution représentée à la figure 4 se différencie de la
précédente dans la mesure où elle concerne la distribution d'un fluide caloporteur,
monophasique ou diphasique. Dans cette application, au lieu d'assurer les fonctions
d'injection et d'aspiration, le dispositif d'alimentation assure la fonction remplissage
et de vidange d'un bac 50 disposé dans le compartiment B et dimensionné pour
recevoir une quantité de fluide correspondant aux besoins de conservation.The embodiment shown in FIG. 4 differs from the
previous in that it concerns the distribution of a coolant,
monophasic or diphasic. In this application, instead of performing the functions
injection and suction, the feeding device ensures the filling function
and draining a
Les moyens de raccordement de ce bac 50 avec le boítier de distribution
110 sont constitués par deux coupleurs hydrauliques 52a, 52b, de type mâle et
équipés de clapets auto obturant 53a, 53b. Bien entendu, chacun de ces clapets
communique directement avec l'intérieur du bac 50, que celui-ci comporte ou non
une ou plusieurs cloisons ou chicanes. The connection means of this
Ces coupleurs sont destinés à coopérer avec deux coupleurs femelles
54a, 54b, saillant de la face avant du boítier 110. Ces deux coupleurs sont également
munis de clapets auto obturant. Comme dans la forme d'exécution précédente, les
coupleurs 54a, 54b sont juxtaposés à des ventouses 115a, 115b, 115c et à des
capteurs de contact 116 et sont connectés à des électrovannes 117a et 117d
alimentées, la première, par une conduite de remplissage 55 et la seconde par une
conduite de vidange 56. Les différentes ventouses 115a, 115b, 115c sont reliées par
un réseau interne 57 au moyen 123 générant le vide, et par exemple, à une pompe à
vide ou à un venturi, ce moyen étant équipé d'un appareil de mesure 124 de la
pression dans le circuit 57. Les divers circuits électriques des électrovannes, des
capteurs d'alimentation des moyens 123 sont raccordés à un connecteur 129, lui-même
relié par une liaison souple à une armoire de commande et de contrôle 126. La
conduite de remplissage 55 est raccordée par une liaison souple 58 et à une conduite
60, à un réservoir 59 maintenant le fluide réfrigérant en condition réfrigérante. La
conduite 60 est équipée d'une vanne manuelle 143 et d'une électrovanne 142 reliée
par un circuit 144 à l'armoire de commande et de contrôle 126. Enfin, le conduit 60
est équipé d'une pompe 62 dont le circuit d'alimentation est commandé par l'armoire
126.These couplers are intended to cooperate with two
Le conduit de vidange 53 est relié par un conduit souple 63 à un conduit
rigide 64, équipé d'une pompe 65 faisant circuler le fluide en direction d'un réservoir
66. Il est évident que la pompe 65 est également commandée par l'armoire 126.The emptying duct 53 is connected by a
Cette forme d'exécution se différencie de la précédente par le fait, qu'au
boítier 110 n'est pas associé un caisson d'aspiration. Comme précédemment,
l'accouplement du boítier 110 avec le bac 50 du compartiment réfrigérant B,
s'effectue avec les sécurités procurées par les contacts 116, avec la force de plaquage
procuré par les ventouses 115a à 115c avec contrôle de la force de plaquage par
l'appareil de mesure 124. Toutes les fonctions de vidange et de remplissage sont
régies par l'armoire de commande et de contrôle 126, de manière que la vidange
commence légèrement avant le remplissage et se termine quelques instants après lui. This form of execution differs from the previous one by the fact that
De préférence, la conduite de vidange 56 est équipée d'un capteur de
température 67 qui est relié à l'armoire de commande et de contrôle 126 par un
circuit 68 pour déclencher l'arrêt du remplissage et de la vidange lorsque le fluide
parcourant le conduit 56 atteint une température donnée, proche de la température du
fluide contenu dans le réservoir 59.Preferably, the
Il ressort de ce qui précède que dans les deux formes d'exécution, le
dispositif d'alimentation comporte de nombreuses sécurités qui permettent à un
opérateur, formé ou non, de l'utiliser sans risque pour injecter dans le compartiment
réfrigérant d'un conteneur, soit du dioxyde de carbone en phase liquide, soit un fluide
caloporteur. La gestion des sécurités dans l'armoire de commande et de contrôle 26,
126 est assurée, selon les applications, par un automate ou par une carte informatique
programmable, avec la gestion d'une base de données pour le calcul des temps
d'injection.It follows from the foregoing that in both forms of execution the
feeding device has many safeguards that allow a
operator, trained or not, to use it safely to inject into the compartment
refrigerant of a container, either liquid phase carbon dioxide or a fluid
coolant. Security management in the control and control
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0111755A FR2829567B1 (en) | 2001-09-07 | 2001-09-07 | AUTOMATIC FEEDING DEVICE FOR A REFRIGERANT COMPARTMENT OF AN INSULATED CONTAINER |
FR0111755 | 2001-09-07 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1291594A2 true EP1291594A2 (en) | 2003-03-12 |
EP1291594A3 EP1291594A3 (en) | 2003-03-19 |
EP1291594B1 EP1291594B1 (en) | 2005-08-31 |
Family
ID=8867179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02356146A Expired - Lifetime EP1291594B1 (en) | 2001-09-07 | 2002-07-25 | Automatic supplying device for refrigerating compartment of an isothermal container |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1291594B1 (en) |
AT (1) | ATE303567T1 (en) |
DE (1) | DE60205831D1 (en) |
FR (1) | FR2829567B1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1724538A1 (en) * | 2005-05-20 | 2006-11-22 | Olivo | Logistic system for the transportation of fresh or frozen products |
EP2336684A1 (en) * | 2009-12-21 | 2011-06-22 | Messer France S.A.S. | Filling device for filling a coolant container compartment attached to a coolant container with a cryogenic coolant |
WO2012107518A2 (en) | 2011-02-09 | 2012-08-16 | Acp Belgium N.V. | System for cooling medium introduction into a container |
FR2984473A1 (en) * | 2011-12-15 | 2013-06-21 | Acp Belgium N V S A | METHOD FOR LOW-TEMPERATURE CONSERVATION OF PRODUCTS IN AN INSULATED ENCLOSURE |
CN104279834A (en) * | 2014-10-09 | 2015-01-14 | 合肥美的电冰箱有限公司 | Display control board mounting component and refrigerator |
EP3246642A1 (en) | 2016-05-19 | 2017-11-22 | Olivo | Cryogenic tank for cooling compartment of isothermal container |
CN109323123A (en) * | 2018-10-30 | 2019-02-12 | 中山瑞科新能源有限公司 | A kind of air charging system applied to vacuum cavity |
US20240092137A1 (en) * | 2022-09-21 | 2024-03-21 | Ford Global Technologies, Llc | Thermal management system for a vehicle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5657642A (en) | 1995-11-24 | 1997-08-19 | Reznikov; Lev | Apparatus for cooling food products |
EP0826600A2 (en) | 1996-08-28 | 1998-03-04 | Lantech Technology Investment Corp. | Method and apparatus for placing cornerboards and wrapping a load |
WO1999043996A1 (en) | 1998-02-27 | 1999-09-02 | Messer France S.A. | Fill and bleed module for a refrigerating module and a method for filling a refrigerating module |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2679002A1 (en) * | 1991-07-12 | 1993-01-15 | Gaz De France | CONNECTING SADDLE TO A PIPE AND ASSEMBLY FORMED THROUGH SADDLE AND PIPE. |
FR2706990B1 (en) * | 1993-06-23 | 1995-08-04 | Carboxyque Francaise | |
FR2752049B1 (en) * | 1996-07-30 | 1998-09-11 | Olivo | INSULATED CONTAINER WITH RESERVE OF FRIGORIES |
FR2758620B1 (en) * | 1997-01-20 | 1999-02-26 | Carboxyque Francaise | CARBON SNOW RECEPTACLE, AND ITS APPLICATION TO A CONTAINER AND A PRODUCT CONSERVATION INSTALLATION |
DE19738032A1 (en) * | 1997-08-30 | 1999-03-04 | Messer Griesheim Gmbh | Tip-over preventer for compressed gas bottles |
JP4171847B2 (en) * | 1998-01-30 | 2008-10-29 | 澁谷工業株式会社 | Solder ball mounting device |
-
2001
- 2001-09-07 FR FR0111755A patent/FR2829567B1/en not_active Expired - Fee Related
-
2002
- 2002-07-25 DE DE60205831T patent/DE60205831D1/en not_active Expired - Lifetime
- 2002-07-25 AT AT02356146T patent/ATE303567T1/en not_active IP Right Cessation
- 2002-07-25 EP EP02356146A patent/EP1291594B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5657642A (en) | 1995-11-24 | 1997-08-19 | Reznikov; Lev | Apparatus for cooling food products |
EP0826600A2 (en) | 1996-08-28 | 1998-03-04 | Lantech Technology Investment Corp. | Method and apparatus for placing cornerboards and wrapping a load |
WO1999043996A1 (en) | 1998-02-27 | 1999-09-02 | Messer France S.A. | Fill and bleed module for a refrigerating module and a method for filling a refrigerating module |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1724538A1 (en) * | 2005-05-20 | 2006-11-22 | Olivo | Logistic system for the transportation of fresh or frozen products |
FR2886002A1 (en) * | 2005-05-20 | 2006-11-24 | Olivo Sa | ISOTHERMAL CONTAINER AND DEVICE FOR INJECTING A REFRIGERANT IN THIS CONTAINER |
EP2336684A1 (en) * | 2009-12-21 | 2011-06-22 | Messer France S.A.S. | Filling device for filling a coolant container compartment attached to a coolant container with a cryogenic coolant |
WO2011076701A1 (en) * | 2009-12-21 | 2011-06-30 | Messer France S.A.S. | Filling device for filling a coolant receptacle associated with a cooling tank having a cryogenic coolant |
DE102012002403A1 (en) | 2011-02-09 | 2013-01-17 | Acp Belgium N.V. | System for introducing a coolant into a container |
WO2012107518A3 (en) * | 2011-02-09 | 2012-11-01 | Acp Belgium N.V. | System for cooling medium introduction into a container |
WO2012107518A2 (en) | 2011-02-09 | 2012-08-16 | Acp Belgium N.V. | System for cooling medium introduction into a container |
BE1020015A5 (en) * | 2011-02-09 | 2013-03-05 | Acp Belgium N V | SYSTEM FOR INSERTING COOLANT TO A CONTAINER. |
DE102012002403A9 (en) | 2011-02-09 | 2019-05-16 | Acp Belgium N.V. | System for introducing a coolant into a container |
FR2984473A1 (en) * | 2011-12-15 | 2013-06-21 | Acp Belgium N V S A | METHOD FOR LOW-TEMPERATURE CONSERVATION OF PRODUCTS IN AN INSULATED ENCLOSURE |
CN104279834A (en) * | 2014-10-09 | 2015-01-14 | 合肥美的电冰箱有限公司 | Display control board mounting component and refrigerator |
EP3246642A1 (en) | 2016-05-19 | 2017-11-22 | Olivo | Cryogenic tank for cooling compartment of isothermal container |
CN109323123A (en) * | 2018-10-30 | 2019-02-12 | 中山瑞科新能源有限公司 | A kind of air charging system applied to vacuum cavity |
CN109323123B (en) * | 2018-10-30 | 2023-09-22 | 中山瑞科新能源有限公司 | Be applied to aerating device of vacuum cavity |
US20240092137A1 (en) * | 2022-09-21 | 2024-03-21 | Ford Global Technologies, Llc | Thermal management system for a vehicle |
Also Published As
Publication number | Publication date |
---|---|
ATE303567T1 (en) | 2005-09-15 |
EP1291594A3 (en) | 2003-03-19 |
DE60205831D1 (en) | 2005-10-06 |
FR2829567B1 (en) | 2004-07-16 |
EP1291594B1 (en) | 2005-08-31 |
FR2829567A1 (en) | 2003-03-14 |
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