Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
  • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2230/00—Sealing means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
  • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2275/00—Fastening; Joining
  • F28F2275/06—Fastening; Joining by welding
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2275/00—Fastening; Joining
  • F28F2275/20—Fastening; Joining with threaded elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
  • F28F2280/02—Removable elements

Definitions

• the present invention relates to a tube-and-shell heat exchanger.
• a problem with these types of known exchangers is that it is impossible to use a removable tube bundle while offering minimal pressure losses on the tube side and while offering maximum sealing on the tube side.
• tubular assembly slides relative to the grille and thus be easily removable, i.e. to allow its extraction/insertion into the grille.
• an exchanger offers minimal pressure losses at the level of the tubular assembly.
• the fluid to be cooled only circulates once inside the bundle tubes, from the front part to the rear part of the exchanger.
• Such an exchanger also offers maximum sealing at the level of the tubular assembly. In fact, the fluid circulating inside the bundle tubes cannot escape to the atmosphere.
• the first fluid is a cooling fluid.
• the first fluid comprises a liquid, in particular water.
• the second fluid is intended to be cooled as it passes through the exchanger.
• the second fluid comprises a gas, in particular helium.
• the front bottom is curved.
• the front bottom extends substantially in a plane orthogonal to the first axis and is intersected by the first axis.
• the front head comprising a front head flange, in particular in one piece or assembled by welding with the front box or with the front tubular plate, to allow the fixing of the front head to a front grille flange, the head flange front having in particular substantially the same internal diameter as that of the front grille flange.
• the exchanger comprises a front seal interposed between the front calender flange and the front head flange, to allow sealing with respect to the first fluid.
• the rear head comprises a converging profile, the converging profile being converging when moving along the first longitudinal axis in the direction going from the front part towards the rear part, on at least a portion of the first axis longitudinal, the portion being in particular between the rear tubular plate and the rear orifice, the rear box being in particular conical.
• the front head comprises a gripping member for the passage of lifting tools allowing the dismantling of the removable tubular assembly relative to the grille.
• the exchanger comprises a sealing device with respect to the first fluid, the sealing device being arranged in particular between a rear opening of the grille and the rear head.
• the sealing device comprising a gasket, in particular mounted tight between the internal wall of the calender and the rear tubular plate, the sealing device comprising in particular a clamping ring mounted integral with a shoulder of the calender.
• the sealing device comprises a bellows fixed, in particular screwed, on the grille with the interposition of a first O-ring between the grille and the bellows, the bellows being further fixed, in particular screwed, on the rear head, with interposition of a second seal, in particular O-ring, between the bellows and the rear head.
• the sealing device comprises a one-piece bellows or assembled by welding with the grille, the bellows being further screwed onto the rear head, with the interposition of a second seal, in particular O-ring, between the bellows and the rear head.
• the front pipe extends along a second axis forming an angle greater than 45° relative to the first axis, in particular forming an angle substantially equal to 90°.
• the rear pipe extends substantially along the first axis.
• the grille does not have a baffle.
• the tubular bundle comprises baffles, in particular fixed on the external wall of at least one of the tubes.
• the front head does not have a removable cover.
• the grille is of the “single pass” type, in particular of the “E” type according to the “TEMA” standard.
• the front head is type “C” according to the “TEMA” standard, the front head not having a removable cover.
• the rear head is of type “P” according to the “TEMA” standard, the rear head not having a removable cover.
• the tubular assembly has no joint between the front box and the front tubular plate.
• the tubular assembly has no joint between the rear box and the rear tubular plate.
• the largest external diameter of the rear head is less than the smallest internal diameter of the grille.
• the rear head is dimensioned to allow the rear head to slide relative to the grille, along the first axis.
• the tubular assembly is arranged to be removable relative to the grille, the assembly being notably mounted to slide relative to the grille, for example by the front part.
• the grille comprises a front grille flange intended to receive in abutment, the front head flange, when the tubular assembly is mounted inside the grille, to allow the fixing of the front head to the grille , in particular by at least one removable fixing system.
• a tube-shell heat exchanger 100 which extends along a first longitudinal axis 40 between a front part, to receive a second fluid and a rear part to deliver the second fluid once cooled.
• the exchanger 100 comprises a calender 2 defining an internal volume intended to be crossed by a first fluid, such as a cooling fluid, for example a liquid such as water.
• the exchanger 100 further comprises a removable tubular assembly 1 extending along the first longitudinal axis 40 and defining a circuit for the circulation of the second fluid, such as a gas, for example helium or neon or nitrogen or a mixture comprising at least one of helium, neon, nitrogen, or any other suitable mixture.
• a gas for example helium or neon or nitrogen or a mixture comprising at least one of helium, neon, nitrogen, or any other suitable mixture.
• the front tubular plate 14 is in one piece or assembled by welding with the front box 18.
• the rear tubular plate 15 is in one piece or assembled by welding with the rear box 20.
• the tubular bundle 13 is in one piece or assembled by welding with the front tubular plate 14
• the tubular bundle 13 is in one piece or assembled by welding with the rear tubular plate 15.
• Front line 10 is an inlet line for the second fluid. It includes a front pipe flange 16 to allow attachment with a front connection flange 30 of an inlet for the second fluid. A gasket is interposed between the front pipe flange 16 and the front connection flange 30.
• the front pipe 10 extends along a second axis 41, perpendicular to the first axis 40.
• the rear pipe 21 is an outlet pipe for the second fluid (namely, the cooled gas in the example considered). It has a rear port flange 17 to allow attachment with a rear connection flange of a rear connection channel 31 with an outlet for the second fluid.
• a seal such as an O-ring or a crushed gasket is interposed between the rear port flange 17 and the rear connection flange 31.
• the grille 2 comprises a tubular wall 51 comprising a front opening configured to allow the passage of the rear head 12 and the tubular bundle 13 through the grille 2, during assembly or disassembly of the removable tubular assembly 1 relative to the grille 2.
• the front head 11 comprises a front head flange 22.
• the front head flange 22 is in one piece or assembled by welding with the front box 18 or with the front tubular plate 14, to allow the attachment of the front head 11 to a front flange grille 56.
• the front head flange 22 has substantially the same internal diameter as that of the front grille flange 56.
• a front seal is interposed between the front grille flange 56 and the front head flange 22, to allow sealing against the first fluid.
• the rear head 12 comprises a converging profile, the converging profile being converging when moving along the first longitudinal axis 40 in the direction going from the front part towards the rear part, on at least one portion comprised between the tubular plate rear 15 and the rear port.
• the rear box 20 is conical.
• the front head 11 comprises a gripping member 60 for the passage of lifting tools allowing the dismantling of the removable tubular assembly 1 relative to the grille 2.
• the exchanger 100 does not have a flange for tightening the rear head 12 relative to the grille 2.
• the tubular assembly 1 is slid along the first longitudinal axis 40, from the front part towards the rear part, until the rear orifice flange 17 comes into contact. stop against the rear connection flange 31.
• each flange as described above is secured to the flange on which it is positioned, by a nut or any other type of connecting device.
• a seal such as an O-ring or a crushed seal is interposed between the two flanges to prevent leaks of the second fluid with respect to the atmosphere or to prevent leaks of the first fluid with the outside. of the grille 2.
• a sealing device 70, 72, 73 is added with respect to the first fluid, between a rear opening of the grille 2 and the rear head 12.
• sealing device 70, 72 There represents a first embodiment of the sealing device 70, 72.
• the sealing device comprises a seal 72, in particular mounted tight between the internal wall of the calender 2 and the rear tubular plate 15.
• the sealing device further comprises a clamping ring 70 mounted integral with a shoulder 50 of the grille 2.
• a nut 71 makes it possible to secure the clamping ring 70 of the grille 2.
• the sealing device comprises a bellows 70 fixed by a nut 71 on the calender 2 with the interposition of a first O-ring 72 between the calender 2 and the bellows 70, the bellows 70 being further fixed by a nut 74 on the head rear 12, with the interposition of a second seal 73, in particular O-ring, between the bellows 70 and the rear head 12.
• the sealing device comprises a bellows 70 in one piece or assembled by welding with the calender 2, the bellows 70 being further fixed by a nut 74 on the rear head 12, with the interposition of a second seal 73, in particular O-ring, between the bellows 70 and the rear head 12.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
• Details Of Heat-Exchange And Heat-Transfer (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=83899508

Family Applications (1)

Country Status (4)

Family Cites Families (4)

• 2022
  • 2022-09-16 FR FR2209356A patent/FR3139892B1/fr active Active
• 2023
  • 2023-08-29 CN CN202380059553.1A patent/CN119731497A/zh active Pending
  • 2023-08-29 EP EP23762421.8A patent/EP4587772A1/de active Pending
  • 2023-08-29 WO PCT/EP2023/073621 patent/WO2024056364A1/fr not_active Ceased

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