WO2022171490A1 - Dispositif porte-flotteur - Google Patents
Dispositif porte-flotteur Download PDFInfo
- Publication number
- WO2022171490A1 WO2022171490A1 PCT/EP2022/052321 EP2022052321W WO2022171490A1 WO 2022171490 A1 WO2022171490 A1 WO 2022171490A1 EP 2022052321 W EP2022052321 W EP 2022052321W WO 2022171490 A1 WO2022171490 A1 WO 2022171490A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow tube
- door
- holder device
- float
- tank
- 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.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/10—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
-
- 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
- F17C13/021—Special adaptations of indicating, measuring, or monitoring equipment having the height as the parameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
- B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
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- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0147—Shape complex
- F17C2201/0157—Polygonal
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/052—Size large (>1000 m3)
-
- 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
- F17C2205/0352—Pipes
-
- 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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0408—Level of content in the vessel
- F17C2250/0413—Level of content in the vessel with floats
-
- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0486—Indicating or measuring characterised by the location
- F17C2250/0491—Parameters measured at or inside the vessel
-
- 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
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0105—Ships
- F17C2270/0107—Wall panels
Definitions
- the invention relates to the field of tanks, sealed and thermally insulating, with membranes, for the storage and/or the transport of fluids, such as a cryogenic fluid. More specifically, the invention relates to a float-holder device intended to be integrated into a tank.
- Sealed and thermally insulating membrane tanks are used in particular for the storage of liquefied natural gas (LNG), which is stored at atmospheric pressure at around -162°C. These tanks can be installed on land or on a floating structure. In the case of a floating structure, the tank may be intended for the transport of liquefied natural gas or to receive liquefied natural gas used as fuel for the propulsion of the floating structure.
- LNG liquefied natural gas
- sealed and thermally insulating tanks are known for the storage of liquefied natural gas, integrated into a supporting structure, such as the double hull of a ship intended for the transport of liquefied natural gas.
- the tanks include liquid level measurement systems.
- float gauging systems are known.
- Float gauging systems comprise a float-holder tube which passes through a ceiling wall of the tank, extends to near a bottom wall of the tank and in which the float of the system is housed.
- the maintenance operations of the float gauging system are likely to be carried out by different actors with different expertise and skills.
- An idea underlying the invention is to solve all or part of the aforementioned problems.
- One idea underlying the invention is to provide a float-holder device whose resistance to "sloshing" is improved.
- a float-holder device with significant resistance to the various hydrodynamic forces that it is likely to undergo.
- Another idea at the basis of the invention is to propose an improved float holder device. More particularly, a float holder device whose mechanical stresses are better distributed, thus making it possible to limit breakage and damage to the float holder device and the surrounding equipment.
- Another idea underlying the invention is to provide a more reliable float-holder device, allowing easier maintenance.
- an idea underlying the invention is to provide a float-carrying device whose interior of this device would be more accessible.
- the invention relates to a float holder device for a sealed and thermally insulating tank for storing a liquid
- the float holder device comprising: - a hollow tube intended to receive a float, the hollow tube being intended to be installed in the tank in a configuration in which the hollow tube passes through a ceiling wall of the tank and extends to near a wall of bottom of the tank, the hollow tube comprising an opening, - A door which is retained in said hollow tube and is movably or removable mounted on the hollow tube; and in which the float holder device has a closed position in which the door partially covers the opening of the hollow tube in the closed position so as to create a passage towards an interior space of the hollow tube.
- the float holder device comprises a float.
- the float being intended to allow the measurement of a level of liquid present in the sealed and thermally insulating storage tank.
- the door is movably mounted on the hollow tube by means of a guiding and retaining device, and in which under the effect of earth's gravity a stop element of the door is in abutment against a abutment element of the hollow tube.
- the door is slidably mounted on the hollow tube in the longitudinal direction of the hollow tube.
- the door is rotatably mounted around the hollow tube.
- the door has a disengaged or disassembled position in which it does not cover the opening of the hollow tube.
- the hollow tube has a bottom at least partially covering a lower end of the hollow tube.
- the invention provides a float holder device for a sealed and thermally insulating tank for storing a liquid
- the float holder device comprising: - a hollow tube intended to receive a float, the hollow tube having a longitudinal direction and being intended to be installed in the tank in a configuration in which the longitudinal direction of said hollow tube is parallel to the direction of earth's gravity, the tube hollow passing through a ceiling wall of the tank and extending to near a bottom wall of the tank, the hollow tube comprising an opening, - a door which is retained on said hollow tube and slidably mounted on the hollow tube in the longitudinal direction of the hollow tube and by means of a guiding and retaining device, the float holder device having a closed position in which the door partially covers the opening of the hollow tube and in which under the effect of earth's gravity an abutment element of the door abuts against an abutment element of the hollow tube.
- the float holder device further comprises a locking device configured to, in the locked state, lock the door in the closed position and, in the released state, allow a sliding movement of the door towards an upper end of the hollow tube.
- the door comprises at least two lugs which project laterally on either side of the door and which each comprise an orifice, the said lugs forming the abutment element of the door, in which the hollow tube comprises at least two wings projecting outwards from the hollow tube on either side of the opening, said wings forming the abutment element of the hollow tube, the guiding and retaining device comprising at least two rods forming projections in the direction of an upper end of the hollow tube, parallel to the longitudinal direction of the hollow tube, respectively from one and the other of the two flanges and which extend respectively inside the orifice of the one and the other of the two legs.
- the guiding and retaining device is simple and allows to ensure reliable guiding of the sliding movement of the door.
- At least two legs are respectively in abutment under the effect of the earth's gravity respectively against one and the other of the wings.
- the weight of the door rests on the wings of the hollow tube, which makes it possible to limit the stresses likely to be exerted on the rods ensuring the guiding of the door.
- the door has four legs and the hollow tube has four wings.
- the door is held more firmly in the closed position.
- the forces are more evenly distributed and the resistance to sloshing is therefore increased.
- the door has between two and eight legs and the hollow tube has between two and eight wings.
- the number of legs and wings are identical.
- the tabs projecting laterally on either side of the door are respectively opposite each other, two by two.
- the wings projecting laterally on either side of the orifice of the hollow tube are respectively facing each other, two by two.
- the rods of the guide and retaining device are threaded studs on which are fixed respectively at least one nut, thus blocking one of the lugs against one of the wings in order to lock the door in the position closed.
- the door is firmly held in the closed position and can also be easily dismantled.
- the opening is formed in a lower portion of the hollow tube.
- the lower portion of the hollow tube can be defined as an area located near the bottom of the tank. More specifically, the lower portion of the hollow tube is located in the lower half near the bottom of the tank, that is to say it extends over a length less than 50% of the total length of the hollow tube. . More specifically, the lower portion extends over a length less than 30% and preferably less than 15% of the total length of the hollow tube.
- the operator can easily access the inside of the tube through the opening. Indeed, the operator can, for example, recover, replace or repair the float and the bolts located inside the hollow tube.
- the door in the closed position, the door only partially covers the opening so as to create a passage towards an interior space of the hollow tube.
- a passage orifice is provided on the door in order to create access to the interior space of the hollow tube.
- the dimensions of the passage allowing access to the interior space of the hollow tube are between 20 mm and 300 mm in length and 10 and 300 mm in width, between 40 mm and 150 mm in length and 30 and 120 mm in width, preferably 100 mm in length and 80 mm in width. These dimensions make it possible in particular to extract a float, for example if it is damaged, as well as the bolts.
- the passage allowing access to the interior space of the hollow tube is circular, oval, parallelepipedic, rectangular, rectangular with rounded edges, square, square with rounded edges.
- the door has a lower edge with an indentation.
- This notch participates in particular in the creation of the passage allowing access to the interior space of the hollow tube.
- the indentation may constitute the upper part of said passage.
- the opening has a lower edge with an indentation.
- This notch participates in particular in the creation of the passage allowing access to the interior space of the hollow tube.
- the indentation may constitute the lower part of said passage.
- the opening has a lower edge arranged at a distance from the bottom so as to define a retention volume between the lower edge of the opening and the bottom of the hollow tube.
- the lower edge of the opening is separated from the bottom by a minimum distance of between 15 mm and 600 mm.
- the minimum distance is between 20 mm and 300 mm, between 25 mm and 150 mm, between 30 mm and 100 mm, between 40 and 60 mm, for example 50 mm.
- the hollow tube has a diameter of between 50 mm and 500 mm, between 100 mm and 300 mm, between 200 mm and 250 mm, for example 219 mm.
- the retention volume is preferably between 1.5 liters and 2.3 liters.
- the hollow tube and/or the door is made of a material chosen from among stainless steel, high manganese steel, invar® or any other alloy having a resilience suitable for cryogenic applications.
- the thickness of the hollow tube and/or of the door is between 5 and 30 mm
- the mass of the door is between 2 kg (kilograms) and 15 kg, for example of the order of 5 to 10 kg.
- the door comprises a peripheral zone comprising an overhanging part which, in the closed position, covers a zone of the hollow tube bordering the opening.
- the door comprises an upper edge, a lower edge and two longitudinal edges extending in the longitudinal direction of the hollow tube and each connecting the lower edge and the upper edge and in which the overhanging part comprises the longitudinal edges and the top edge of the door.
- the overhanging part comprises the longitudinal edges, the upper edge and the lower edge.
- a passage orifice is provided on the door in order to create access to the interior space of the hollow tube.
- the hollow tube has a cylindrical wall and the opening is formed in the cylindrical wall.
- the hollow tube has the general shape of a cylinder of revolution and in which the door has a section which is concentric with the hollow tube and conforms to an outer surface of the hollow tube.
- the door surrounds the hollow tube. This makes it possible to limit the stresses due to the sloshing phenomenon which are exerted on the hollow tube and the door. These characteristics also allow the door to slide in the longitudinal direction of the hollow tube or its rotation around said hollow tube along an axis of rotation parallel to the longitudinal direction.
- the float holder device is suitable for use in a sealed and thermally insulating tank for storing a fluid.
- the fluid is chosen from liquefied petroleum gas (LPG), liquefied natural gas (LNG), liquid hydrogen (LH2) or another cryogenic fluid.
- the invention relates to a float holder device for a sealed and thermally insulating tank for storing a liquid
- the float holder device comprising: - a hollow tube intended to receive a float, the hollow tube being intended to be installed in the tank in a configuration in which the hollow tube passes through a ceiling wall of the tank and extends to near a wall of bottom of the tank, the hollow tube comprising an opening, - a door which is retained in said hollow tube, the door comprising a peripheral zone comprising an overhanging part which, in the closed position, covers a zone of the hollow tube bordering the opening.
- the forces exerted on the door due to the “sloshing” phenomenon are taken up by the hollow tube.
- the invention also presents a sealed and thermally insulating tank for storing a liquid comprising a ceiling wall, a bottom wall and a aforementioned float-holder device, the hollow tube passing through the ceiling wall and extending up close to the bottom wall.
- Such a tank can be part of an onshore storage facility, for example to store LNG or be installed in a floating, coastal or deep water structure, in particular an LNG carrier, a floating storage and regasification unit (FSRU) , a floating production and remote storage unit (FPSO) and others.
- FSRU floating storage and regasification unit
- FPSO floating production and remote storage unit
- Such a tank can also serve as a fuel tank in any type of ship.
- a vessel for the transport of a cold liquid product comprises a double hull and an aforementioned tank arranged in the double hull.
- the invention also provides a method for loading or unloading such a ship, in which a cold liquid product is conveyed through insulated pipes from or to a floating or terrestrial storage installation to or from the ship's tank.
- the invention also provides a transfer system for a cold liquid product, the system comprising the aforementioned vessel, insulated pipes arranged so as to connect the tank installed in the hull of the vessel to a floating storage installation or land and a pump to cause a flow of cold liquid product through the insulated pipes from or to the floating or land storage facility to or from the tank of the ship.
- zone I representing in perspective part of the float holder device according to one embodiment.
- The represents a schematic view of a hollow tube of a float holder device according to one embodiment, the door not being represented in order to allow visualization of the float.
- the is a cutaway schematic representation of an LNG tank comprising a sealed and thermally insulating tank and a loading/unloading terminal for this tank.
- lower and upper define the relative position of an element or part of an element, “lower” means close to the bottom of the tank and upper means close to the top of the tank .
- The represents a sealed and thermally insulating tank for storing a liquid, such as liquefied gas.
- the tank comprises a ceiling wall 2, a bottom wall 3 and a float holder device 1.
- the float holder device 1 passes through the ceiling wall 2 of the tank and extends to near the bottom wall 3 of the tank.
- Such tanks are for example membrane tanks. They comprise a multilayer structure having successively, in the direction of the thickness, from the outside towards the inside of the tank, a secondary thermally insulating barrier retained on the supporting structure, a secondary sealed membrane resting against the secondary thermally insulating barrier , a primary thermally insulating barrier resting against the secondary sealed membrane and a primary sealed membrane resting against the primary thermally insulating barrier and intended to be in contact with the liquefied natural gas contained in the tank.
- membrane tanks are described in particular in patent applications WO14057221, FR2691520 and FR2877638.
- the present invention is not limited to this particular type of tank.
- the float holder device 1 comprises a hollow tube 4 intended to receive a float 9, for example a float making it possible to measure the level of liquid in the tank.
- the hollow tube 4 has a longitudinal direction as well as an opening 41, partially visible in the lower part of the hollow tube 4 of the and 3, and completely visible on the .
- the hollow tube 4 has the general shape of a cylinder of revolution.
- the opening 41 is made on a lower part of the hollow tube 4.
- the opening 41 has the general shape of a rectangle with rounded corners and also has a notch 42 located on the lower part of the opening 41.
- the opening 41 is larger in size than the diameter of the float 9 intended to be integrated into the float holder device.
- the diameter of a float is between 50 mm and 300 mm.
- float 9 shown has a diameter of 127 mm.
- the hollow tube 4 further comprises four flanges 43 projecting outwards from the hollow tube 4 on either side of the opening 41.
- Four studs 44 are fixed by welding on each flange 43 respectively.
- the studs 44 protrude towards an upper end of the hollow tube 4.
- the studs 44 pass through an opening made in the wings 43 and are welded to said wings 43.
- the hollow tube 4 presented further comprises a bottom 45 covering the lower end of the hollow tube 4.
- the bottom 45 has a hole 451 allowing communication of the liquid between the internal space of the float holder device 1 and the tank.
- the opening 41 has a lower edge represented by the notch 42 formed at a distance from the bottom 45 so as to define a retention volume between the lower edge 42 of the opening 41 and the bottom 45 of the hollow tube 4. This volume of retention makes it possible to retain the elements that can fall into the interior space of the float holder device 1, this can for example be a float 9, a screw, a stud, etc.
- the float holder device 1 also comprises a door 5.
- the door has a section of semi-circular shape and comprises an upper edge 52, a lower edge 53 and two longitudinal edges 54 extending in the longitudinal direction of the hollow tube 4 and each connecting the lower edge 53 and the upper edge 52.
- the door further has a notch 55 on the lower edge 53.
- the door 5 comprises four tabs 51 which project laterally on either side of the door 5 and which comprise one hole each.
- the door 5 is retained on the hollow tube 4 and slidably mounted on the hollow tube 4 in the longitudinal direction of the hollow tube 4 by causing the threaded studs 44 to pass through the orifices of the four legs 51.
- the studs 44 then have the role of guiding and retaining the door 5 against the hollow tube 4.
- Under the effect of earth's gravity at least two of the lugs 51 of the door 5 abut on the respective flanges 43 of the hollow tube 4.
- the door 5 is thus in closed position, this closed position is shown in particular in Figures 2 to 4 and corresponds to the position of the door 5 in which it covers the opening more than for all the other positions of the door 5.
- This arrangement combined with the force of earth's gravity allows reliable maintenance of the door 5 in the closed position.
- the door 5 only partially covers the opening 41 of the hollow tube 4 so as to define a passage allowing access to the interior space of the hollow tube 4 although the door 5 is in the closed position.
- This passage is delimited and 2 by the notch 42 of the hollow tube 4 as well as the notch 55 of the door 5.
- the two notches 42,55 communicate and create a passage towards the interior space of the hollow tube 4.
- the 42.55 indentations are similar shapes. It is also possible that the shape of the notch 42 of the hollow tube 4 is different from the notch 55 of the door 5.
- the door 5 has a section which is concentric with the hollow tube 4 and marries an outer surface of the hollow tube 4.
- the door 5 comprises a peripheral zone comprising an overhanging part 6 which, in the closed position, covers a zone of the hollow tube 4 bordering the opening 42.
- the projecting part 6 of the peripheral zone can be more or less important.
- the overflowing part may have a width of between 2 mm and 20 mm, for example equal to 13 mm in the direction perpendicular to the longitudinal direction of the hollow tube 4.
- the float holder device 1 further comprises a flat washer and a nut 8, for example a slotted nut HK M8 fixed respectively on the threaded part 441 of each threaded stud 44 after insertion of the door 5 and then of the washer.
- the nuts 8 thus block the four legs 51 and the four wings 43 in order to lock the door 5 in the closed position.
- the washer is optional and its purpose is essentially to protect the lugs 51 from friction during fixing with the nut 8.
- the door 5 initially in the closed position can be disengaged from the opening by proceeding as follows: remove the nuts 8 and exert on the door a force in the direction opposite to the earth's gravity force until the openings of the legs 51 to disengage from the threaded studs 44.
- the direction of the force required to disengage the door is shown by the arrow starting from the door 5 on the .
- the hollow tube 104 comprises a plurality of holes 551 arranged in the bottom wall 145 allowing the communication of the liquid between the internal space of the float holder device 100 and the tank.
- the hollow tube 104 further comprises four wings 143 projecting outwards from the hollow tube 104 on either side of the opening and which each comprise an orifice.
- the float holder device 100 further comprises a door 105 comprising a notch 155 of rectangular shape with rounded corners in the lower edge 153 of the hollow tube 104.
- the door 105 also comprises four tabs 151 which protrude laterally on both sides. other of the door 105 and which each have an orifice. However, each pair of legs 151 is placed between two flanges 134 of the hollow tube. Thus, under the effect of earth's gravity, the two lower tabs 151 of the door 105 abut respectively on the two lower flanges 143 of the hollow tube 104.
- the two upper tabs 151 are in contact with the two upper flanges 143 and do not do not rest on the upper wings 143.
- the four legs 151 and the four wings 143 are locked by a screw-nut type system thus blocking the four legs 151 and the four wings 143 in order to lock the door 105 in the closed position. All four screw-nut systems must be removed to allow door 105 to be removed. In such an embodiment, if one or more of the screw-nut systems accidentally unscrew, there is a risk that they will damage the tank and cause the door 105 to fall to the bottom of the tank.
- This float holder device 200 differs from the figures described previously in that the lower part of the float holder device 200 presented on the comprises an upper part of the hollow tube 204 which is located above the assembly flanges 24 and a lower part of the hollow tube 204 which is connected to the upper part of the hollow tube via said assembly flanges 24.
- the lower part of the hollow tube 204 is formed by a half-shell 304 of the hollow tube 204.
- a door formed by a half-shell 205 is attached to the hollow tube 204.
- the door comprises in the lower part a passage 296 of rectangular shape with rounded corners.
- the two half-shells are connected to each other on a first side by two hinges 21.
- Each hinge 21 comprises a first leg 22 projecting from the half-shell 205 and a second leg 23 projecting from the half- shell 304 and includes an orifice.
- the lugs 22 and 23 are connected via a screw-nut system passing through the holes present on the lugs 22 and 23 and which makes it possible to block the longitudinal movement of the half-shell 205.
- the second side of the two half-shells are connected and fixed via a longitudinal fastening system 30.
- the half-shells respectively comprise a tab 30 projecting from each half-shell over a length along a longitudinal direction of the hollow tube 204 and of the door and being facing each other and joined together one to another.
- the tongues 30 respectively comprise three orifices distributed over the length of the tongue 30 and are fixed via a screw-nut system passing through the orifices and thus blocking the longitudinal movement and perpendicular to the longitudinal movement of the half-shell 205.
- the half-shell 205 is thus in the closed position.
- This lower part of the float holder device 200 is integrated with the rest of the float holder device 200 via an assembly flange 24 making it possible to make the connection with the upper part of the hollow tube 204.
- FIGS 8, 9 and 10 show a float holder device according to another embodiment.
- This float holder device 300 differs from the previous embodiments in that the door 305 surrounds the hollow tube 404.
- the door 305 has a circular cross-section and comprises an upper edge 152, a lower edge 153 and two longitudinal edges 154 s extending in the longitudinal direction of the hollow tube 404 and each connecting the lower edge 153 and the upper edge 152.
- the door 305 further comprises two extensions 251, 252 which join the two longitudinal edges 154 so as to surround the hollow tube 404 .
- the extensions 251, 252 are advantageously located, in the closed position, axially on either side of the opening 141.
- the door 305 thus has a concentric section which surrounds the hollow tube 404 and hugs the outer surface of the hollow tube 404, which makes it possible to hold the door in position on the hollow tube 404.
- the extensions 251, 252 thus form guiding and retaining elements of the door 305. They allow a sliding movement in the longitudinal direction of the hollow tube 404, as shown in the , and/or a rotational movement of the door 305 around the longitudinal axis of the hollow tube 404, as shown in the .
- the door 305 is, under the effect of gravity, in abutment against an abutment element 243 of the hollow tube 404.
- the abutment element 243 of the hollow tube 404 is formed by the bottom 245 of the hollow tube 404 which has a diameter greater than the cross-sectional diameter of the hollow tube 404.
- the portion of the bottom 245 visible on the outside of the hollow tube corresponds to the abutment element 243.
- the bottom 245 comprises, in a manner similar to FIGS. 2 and 3, a hole 651 allowing the communication of the liquid between the internal space of the float holder device 300 and the tank.
- the float holder device 300 comprises at least one removable retaining member, not shown, which is configured to hold the door in a disengaged position, as shown in FIGS. 9 or 10.
- a holding member can be a pin which passes through two facing orifices respectively formed in the door and the hollow tube.
- the holding member can also be a pin which passes through an orifice formed in the hollow tube and which protrudes outside the hollow tube. In this case, the pin is positioned so that the door comes into abutment against it during a movement aimed at moving it from the release position to the closed position.
- Any other holding member can be envisaged and in particular fixing clip, screw or other.
- the float holder device 300 can also comprise at least one removable holding member, not shown, which is configured to hold the door in the closed position.
- a holding member may be a pin which passes through two facing orifices respectively formed in the door and the hollow tube.
- the technique described above having different float support devices can be used in different types of tank, for example in an LNG tank in an onshore installation or in a floating structure such as an LNG carrier or other.
- loading/unloading pipes 73 arranged on the upper deck of the ship can be connected, by means of appropriate connectors, to a maritime or port terminal to transfer a cargo of LNG from or to the tank 71.
- the represents an example of a maritime terminal comprising a loading and unloading station 75, an underwater pipeline 76 and an installation on land 77.
- the loading and unloading station 75 is a fixed off-shore installation comprising a mobile arm 74 and a tower 78 which supports the mobile arm 74.
- the mobile arm 74 carries a bundle of insulated flexible pipes 79 which can be connected to the loading/unloading pipes 73.
- the orientable mobile arm 74 adapts to all sizes of LNG carriers.
- a connecting pipe, not shown, extends inside the tower 78.
- the loading and unloading station 75 allows the loading and unloading of the LNG carrier 70 from or to the shore installation 77.
- This comprises liquefied gas storage tanks 80 and connecting pipes 81 connected by the underwater pipe 76 to the loading or unloading station 75.
- the underwater pipe 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the shore installation 77 over a great distance, for example 5 km, which makes it possible to keep the LNG carrier 70 at a great distance from the coast during loading and unloading operations.
- pumps on board the ship 70 and/or pumps fitted to the shore installation 77 and/or pumps fitted to the loading and unloading station 75 are used.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
- un tube creux destiné à recevoir un flotteur, le tube creux étant destiné à être installé dans la cuve dans une configuration dans laquelle le tube creux traverse une paroi de plafond de la cuve et s’étend jusqu’à proximité d’une paroi de fond de la cuve, le tube creux comprenant une ouverture,
- une porte qui est retenue audit tube creux et est montée mobile ou démontable sur le tube creux ;
et dans lequel, le dispositif porte-flotteur présente une position fermée dans laquelle la porte couvre partiellement l’ouverture du tube creux position fermée de manière à créer un passage vers un espace intérieur du tube creux.
- un tube creux destiné à recevoir un flotteur, le tube creux présentant une direction longitudinale et étant destiné à être installé dans la cuve dans une configuration dans laquelle la direction longitudinale dudit tube-creux est parallèle à la direction de la gravité terrestre, le tube creux traversant une paroi de plafond de la cuve et s’étendant jusqu’à proximité d’une paroi de fond de la cuve, le tube creux comprenant une ouverture,
- une porte qui est retenue audit tube creux et montée coulissante sur le tube creux selon la direction longitudinale du tube creux et au moyen d’un dispositif de guidage et de retenue, le dispositif porte flotteur présentant une position fermée dans laquelle la porte couvre partiellement l’ouverture du tube creux et dans laquelle sous l’effet de la gravité terrestre un élément de butée de la porte est en butée contre un élément de butée du tube creux.
- un tube creux destiné à recevoir un flotteur, le tube creux étant destiné à être installé dans la cuve dans une configuration dans laquelle le tube creux traverse une paroi de plafond de la cuve et s’étend jusqu’à proximité d’une paroi de fond de la cuve, le tube creux comprenant une ouverture,
- une porte qui est retenue audit tube creux, la porte comportant une zone périphérique comportant une partie débordante qui, dans la position fermée, recouvre une zone du tube creux bordant l’ouverture. Ainsi, les efforts exercés sur la porte en raison du phénomène de « sloshing » sont repris par le tube creux.
Cette partie inférieure du dispositif porte-flotteur 200 est intégrée au reste du dispositif porte flotteur 200 via une bride d’assemblage 24 permettant de faire la liaison avec la partie supérieure du tube creux 204.
Claims (21)
- Dispositif porte-flotteur (1, 100, 200, 300, 400) pour une cuve étanche et thermiquement isolante de stockage d’un liquide, le dispositif porte-flotteur (1, 100, 200, 300, 400) comprenant :
- un tube creux (4, 104, 204, 404) destiné à recevoir un flotteur (9), le tube creux (4, 104, 204, 404) étant destiné à être installé dans la cuve dans une configuration dans laquelle le tube creux (4, 104, 204, 404) traverse une paroi de plafond (2) de la cuve et s’étend jusqu’à proximité d’une paroi de fond (3) de la cuve, le tube creux (4, 104, 204, 404) comprenant une ouverture (41, 141),
- une porte (5, 105, 205, 305) qui est retenue audit tube creux (4, 104, 204, 404) et est montée mobile sur le tube creux (4, 104, 204, 404) ;
et dans lequel, le dispositif porte-flotteur (1, 100, 200, 300, 400) présente une position fermée dans laquelle la porte (5, 105, 205, 305) couvre partiellement l’ouverture (41) du tube creux (4, 104, 204, 404) de manière à créer un passage (296, 396) vers un espace intérieur du tube creux (4, 104, 204, 404). - Dispositif porte-flotteur selon la revendication 1, dans lequel la porte (5, 305) est montée mobile sur le tube creux (4, 404) au moyen d’un dispositif de guidage et de retenue (441, 44, 252), et dans laquelle sous l’effet de la gravité terrestre un élément de butée (51, 251) de la porte (5, 305) est en butée contre un élément de butée (43, 243) du tube creux (4, 305).
- Dispositif porte-flotteur selon la revendication 1 ou 2, dans lequel la porte (5, 305) est montée coulissante sur le tube creux (4, 404) selon la direction longitudinale du tube creux (4, 404).
- Dispositif porte-flotteur selon l’une quelconque des revendications 1 à 3, dans lequel la porte (305) est montée mobile en rotation autour du tube creux (404)
- Dispositif porte-flotteur selon l’une quelconque des revendications 2 à 4, comprenant en outre un dispositif de verrouillage (8) configuré pour, à l’état verrouillé, bloquer la porte (5) dans la position fermée et, dans un état libéré, autoriser un mouvement de coulissement de la porte (5) en direction d’une extrémité supérieure du tube creux (4).
- Dispositif porte-flotteur selon l’une quelconque des revendications 2 à 5, dans lequel la porte (5) comporte au moins deux pattes (51) qui font saillies latéralement de part et d’autre de la porte (5) et qui comportent chacune un orifice, lesdites pattes (51) formant l’élément de butée (51) de la porte (5), dans lequel le tube creux (4) comporte au moins deux ailes (43) faisant saillies vers l’extérieur du tube creux (4) de part et d’autre de l’ouverture (41), lesdites ailes (43) formant l’élément de butée (43) du tube creux (4), le dispositif de guidage et de retenue (441, 44) comportant au moins deux tiges (441) faisant saillies en direction d’une extrémité supérieure du tube creux (4), parallèlement à la direction longitudinale du tube creux (4), respectivement depuis l’une et l’autre des deux ailes (43) et qui s’étendent respectivement à l’intérieur de l’orifice de l’une et l’autre des deux pattes (51).
- Dispositif porte-flotteur selon la revendication 6, dans lequel, dans la position fermée, au moins deux pattes (51) sont respectivement en butée sous l’effet de la gravité terrestre respectivement contre l’une et l’autre des ailes (43).
- Dispositif porte-flotteur selon la revendication 6 ou 7, dans lequel la porte (5) comporte quatre pattes (51) et le tube creux (4) comporte quatre ailes (43).
- Dispositif porte-flotteur selon l’une quelconque des revendications 6 à 8, dans lequel les tiges du dispositif de guidage et de retenue (441, 44) sont des goujons filetés (441, 44) sur lesquels sont fixés respectivement au moins un écrou (8), bloquant ainsi l’une des pattes (51) contre l’une des ailes (43) afin de verrouiller la porte (5) dans la position fermée.
- Dispositif porte-flotteur selon l’une quelconque des revendications 1 à 9, dans lequel l’ouverture (41, 141) est ménagée dans une portion inférieure du tube creux (4, 304, 404).
- Dispositif porte-flotteur selon l’une quelconque des revendications 1 à 10, dans lequel la porte (5, 105) présente un bord inférieur (53, 153) présentant une échancrure (55, 155).
- Dispositif porte-flotteur selon l’une quelconque des revendications 1 à 11, dans lequel l’ouverture (41) présente un bord inférieur présentant une échancrure (42).
- Dispositif porte-flotteur selon l’une quelconque des revendications 1 à 12, dans lequel le tube creux (4, 104, 204, 404) présente un fond (45, 145, 245) recouvrant au moins partiellement une extrémité inférieure du tube creux (4, 104, 204, 404), l’ouverture (41, 141) présentant un bord inférieur ménagé à distance du fond (45, 145, 245) de manière à définir un volume de rétention entre le bord inférieur de l’ouverture (41, 141) et le fond (45, 145, 245) du tube creux (4, 104, 204, 404).
- Dispositif porte-flotteur selon la revendication 13, dans lequel le bord inférieur de l’ouverture (41, 141) est écarté du fond (45, 145, 245) d’une distance minimale comprise entre 15 mm et 600 mm.
- Dispositif porte-flotteur selon l’une quelconque des revendications précédentes, dans lequel la porte (5, 105, 205, 305) comporte une zone périphérique comportant une partie débordante (6) qui, dans la position fermée, recouvre une zone du tube creux (4, 104, 204, 404) bordant l’ouverture (41, 141).
- Dispositif porte-flotteur selon la revendication 15, dans lequel la porte (5, 105, 205, 305) comprend un bord supérieur (52, 152), un bord inférieur (53, 153) et deux bords longitudinaux (54, 154) s’étendant selon la direction longitudinale du tube creux (4, 104, 204, 404) et reliant chacun le bord inférieur (53) et le bord supérieur (52, 152) et dans lequel la partie débordante (6) comprend les bords longitudinaux (54, 154) et le bord supérieur (52, 152) de la porte (5, 105, 205, 305).
- Dispositif porte-flotteur selon l’une quelconque des revendications précédentes, dans lequel le tube creux (4, 104, 204, 404) présente une forme générale de cylindre de révolution et dans lequel la porte (5, 105, 205, 305) présente une section qui est concentrique au tube creux (4, 104, 204, 404) et épouse une surface extérieure du tube-creux (4, 104, 204, 404).
- Cuve étanche et thermiquement isolante de stockage d’un liquide comprenant une paroi de plafond (2), une paroi de fond (3) et un dispositif porte-flotteur (1, 100, 200, 300, 400) selon l’une quelconque des revendications 1 à 17, le tube creux (4) traversant la paroi de plafond (2) et s’étendant jusqu’à proximité de la paroi de fond (3).
- Navire (70) pour le transport d’un produit liquide froid, le navire comportant une double coque (72) et une cuve (71) selon la revendication 18 disposée dans la double coque.
- Système de transfert pour un produit liquide froid, le système comportant un navire (70) selon la revendication 19, des canalisations isolées (73, 79, 76, 81) agencées de manière à relier la cuve (71) installée dans la coque du navire à une installation de stockage flottante ou terrestre (77) et une pompe pour entrainer un flux de produit liquide froid à travers les canalisations isolées depuis ou vers l’installation de stockage flottante ou terrestre vers ou depuis la cuve du navire.
- Procédé de chargement ou déchargement d’un navire (70) selon la revendication 19, dans lequel on achemine un produit liquide froid à travers des canalisations isolées (73, 79, 76, 81) depuis ou vers une installation de stockage flottante ou terrestre (77) vers ou depuis la cuve du navire (71).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020237026747A KR20230144541A (ko) | 2021-02-09 | 2022-02-01 | 부구 홀더 장치 |
| CN202280012938.8A CN116867997B (zh) | 2021-02-09 | 2022-02-01 | 浮子保持装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2101231A FR3119660B1 (fr) | 2021-02-09 | 2021-02-09 | Dispositif porte-flotteur |
| FRFR2101231 | 2021-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022171490A1 true WO2022171490A1 (fr) | 2022-08-18 |
Family
ID=75108581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/052321 Ceased WO2022171490A1 (fr) | 2021-02-09 | 2022-02-01 | Dispositif porte-flotteur |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR20230144541A (fr) |
| CN (1) | CN116867997B (fr) |
| FR (1) | FR3119660B1 (fr) |
| WO (1) | WO2022171490A1 (fr) |
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| FR2691520A1 (fr) | 1992-05-20 | 1993-11-26 | Technigaz Ste Nle | Structure préfabriquée de formation de parois étanches et thermiquement isolantes pour enceinte de confinement d'un fluide à très basse température. |
| EP0592115A1 (fr) * | 1992-10-09 | 1994-04-13 | Shonan Gosei - Jushi Seisakusho K.K. | Procédé pour réparer un conduit de tuyaux |
| EP1252854A1 (fr) * | 2001-04-27 | 2002-10-30 | BSH Bosch und Siemens Hausgeräte GmbH | Raccord de tuyaux pour tuyau d' aspirateur |
| US20060042798A1 (en) * | 2004-08-30 | 2006-03-02 | Badalamenti Anthony M | Casing shoes and methods of reverse-circulation cementing of casing |
| FR2877638A1 (fr) | 2004-11-10 | 2006-05-12 | Gaz Transp Et Technigaz Soc Pa | Cuve etanche et thermiquement isolee a elements calorifuges resistants a la compression |
| WO2014057221A2 (fr) | 2012-10-09 | 2014-04-17 | Gaztransport Et Technigaz | Cuve étanche et thermiquement isolante comportant une membrane métallique ondulée selon des plis orthogonaux |
| WO2019030447A1 (fr) * | 2017-08-07 | 2019-02-14 | Gaztransport Et Technigaz | Cuve etanche et thermiquement isolante comportant une structure de dome gaz |
| CN112254789A (zh) * | 2020-10-21 | 2021-01-22 | 西安德厚电子科技有限公司 | 一种高精度液体检测液位仪 |
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| GB1078270A (en) * | 1966-02-02 | 1967-08-09 | Harald Gohn Klemmetsen | Apparatus for indicating the level of a liquid in a tank |
| JPH01123115A (ja) * | 1987-11-07 | 1989-05-16 | Power Reactor & Nuclear Fuel Dev Corp | 浮子式レーザレベル計 |
| US5251658A (en) * | 1990-10-10 | 1993-10-12 | Montana Sulphur & Chemical Co. | Fluid apparatus with at least one tube well |
| ITTO20030097A1 (it) * | 2003-02-11 | 2004-08-12 | Fiat Ricerche | Dispositivo sensore di livello per un serbatoio di |
| US7343968B2 (en) * | 2004-08-27 | 2008-03-18 | Deublin Company | Washpipe seal assembly |
| CN202453039U (zh) * | 2011-10-14 | 2012-09-26 | 上海工电能源科技有限公司 | 一种激光液位测量装置 |
| CN105547415A (zh) * | 2015-12-15 | 2016-05-04 | 北京理工大学 | Lng液位测量装置 |
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2021
- 2021-02-09 FR FR2101231A patent/FR3119660B1/fr active Active
-
2022
- 2022-02-01 CN CN202280012938.8A patent/CN116867997B/zh active Active
- 2022-02-01 KR KR1020237026747A patent/KR20230144541A/ko active Pending
- 2022-02-01 WO PCT/EP2022/052321 patent/WO2022171490A1/fr not_active Ceased
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| FR2691520A1 (fr) | 1992-05-20 | 1993-11-26 | Technigaz Ste Nle | Structure préfabriquée de formation de parois étanches et thermiquement isolantes pour enceinte de confinement d'un fluide à très basse température. |
| EP0592115A1 (fr) * | 1992-10-09 | 1994-04-13 | Shonan Gosei - Jushi Seisakusho K.K. | Procédé pour réparer un conduit de tuyaux |
| EP1252854A1 (fr) * | 2001-04-27 | 2002-10-30 | BSH Bosch und Siemens Hausgeräte GmbH | Raccord de tuyaux pour tuyau d' aspirateur |
| US20060042798A1 (en) * | 2004-08-30 | 2006-03-02 | Badalamenti Anthony M | Casing shoes and methods of reverse-circulation cementing of casing |
| FR2877638A1 (fr) | 2004-11-10 | 2006-05-12 | Gaz Transp Et Technigaz Soc Pa | Cuve etanche et thermiquement isolee a elements calorifuges resistants a la compression |
| WO2014057221A2 (fr) | 2012-10-09 | 2014-04-17 | Gaztransport Et Technigaz | Cuve étanche et thermiquement isolante comportant une membrane métallique ondulée selon des plis orthogonaux |
| WO2019030447A1 (fr) * | 2017-08-07 | 2019-02-14 | Gaztransport Et Technigaz | Cuve etanche et thermiquement isolante comportant une structure de dome gaz |
| CN112254789A (zh) * | 2020-10-21 | 2021-01-22 | 西安德厚电子科技有限公司 | 一种高精度液体检测液位仪 |
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Also Published As
| Publication number | Publication date |
|---|---|
| FR3119660A1 (fr) | 2022-08-12 |
| CN116867997B (zh) | 2025-09-09 |
| CN116867997A (zh) | 2023-10-10 |
| FR3119660B1 (fr) | 2023-12-29 |
| KR20230144541A (ko) | 2023-10-16 |
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