EP4202342A1 - Échangeur de chaleur, en particulier échangeur de chaleur à faisceau tubulaire, destiné à être agencé dans un rotor doté d'un axe de rotation - Google Patents

Échangeur de chaleur, en particulier échangeur de chaleur à faisceau tubulaire, destiné à être agencé dans un rotor doté d'un axe de rotation Download PDF

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Publication number
EP4202342A1
EP4202342A1 EP21216865.2A EP21216865A EP4202342A1 EP 4202342 A1 EP4202342 A1 EP 4202342A1 EP 21216865 A EP21216865 A EP 21216865A EP 4202342 A1 EP4202342 A1 EP 4202342A1
Authority
EP
European Patent Office
Prior art keywords
heat exchange
axis
rotation
exchange medium
flow
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.)
Withdrawn
Application number
EP21216865.2A
Other languages
German (de)
English (en)
Inventor
Bernhard Adler
Andreas LÄNGAUER
Christian RAKUSCH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecop Technologies GmbH
Original Assignee
Ecop Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ecop Technologies GmbH filed Critical Ecop Technologies GmbH
Priority to EP21216865.2A priority Critical patent/EP4202342A1/fr
Priority to PCT/EP2022/087405 priority patent/WO2023118402A1/fr
Priority to AU2022420806A priority patent/AU2022420806A1/en
Priority to CA3236896A priority patent/CA3236896A1/fr
Publication of EP4202342A1 publication Critical patent/EP4202342A1/fr
Withdrawn legal-status Critical Current

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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
    • F28D11/00—Heat-exchange apparatus employing moving conduits
    • F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
    • F28D11/04—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller performed by a tube or a bundle of tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B3/00—Self-contained rotary compression machines, i.e. with compressor, condenser and evaporator rotating as a single unit
    • 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
    • F28D7/1607—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 with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0263—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry or cross-section of header box
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • F28F9/0268—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box in the form of multiple deflectors for channeling the heat exchange medium
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F2009/0285—Other particular headers or end plates
    • F28F2009/029—Other particular headers or end plates with increasing or decreasing cross-section, e.g. having conical shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/08—Assemblies of conduits having different features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities

Definitions

  • a device for equalizing the flow through the second heat exchange channels has a throttle element which is designed to direct an inner flow of the second heat exchange medium passing through the inner of the second heat exchange channels and an outer flow of the second heat exchange medium through the outer of the second heat exchange channels between the inlet opening of the dividing element and the outlet opening of the combining element throttle.
  • the throttle device has a throttle diaphragm with throttle openings, with a throttle opening further away from the axis of rotation and a throttle opening located closer to the axis of rotation being of different sizes.
  • the throttle orifice can be arranged in front of the inflow openings, in particular immediately in front of the inflow openings, or after the outflow openings, in particular immediately after the outflow openings.
  • the throttle opening that is further away from the axis of rotation is larger than the throttle opening that is closer to the axis of rotation.
  • the throttle orifice is preferably arranged in front of the second heat exchange channels in such a way that the second heat exchange medium is fed to exactly one of the second heat exchange channels via the throttle openings.
  • the throttle orifice can be arranged after the second heat exchange channels in such a way that the second heat exchange medium is discharged from each of the second heat exchange channels through exactly one throttle opening.
  • the heat exchanger comprises a plurality of rows of second heat exchange channels, the second heat exchange channels of each row being at substantially the same distance from the axis of rotation of the rotor.
  • the orifice plate preferably has a plurality of rows each with a plurality of throttle openings, one row further away from the axis of rotation and one closer to the axis of rotation located row have differently sized throttle openings.
  • the row of orifices farther from the axis of rotation has larger orifices than the row of orifices closer to the axis of rotation.
  • a first row of first throttle openings each essentially at the first distance from the axis of rotation, and a second row of second throttle openings, each essentially at the second distance from the axis of rotation, preferably also a third row of third throttle openings, each essentially at the third distance to the axis of rotation, preferably also a fourth row of fourth throttle openings, each essentially at a fourth distance from the axis of rotation, preferably also at least one further row of further throttle openings, each at a further distance from the axis of rotation.
  • the turbulator further away from the axis of rotation and the turbulator located closer to the axis of rotation can have different spiral lengths.
  • the turbulator that is further away from the axis of rotation can have a greater pitch than the turbulator that is closer to the axis of rotation.
  • the advantage of the turbulators compared to the previously described embodiments of the throttle device is that not only the pressure loss in the second heat exchange channels with different distances to the axis of rotation can be set differently in order to achieve a uniform flow through the second flow channels, but also the heat transfer by an increased Turbulence in heat transfer is increased.
  • the rotor has a compressor unit in which the second heat exchange medium for pressure increase due to centrifugal force from the The axis of rotation is carried away, and an expansion unit in which the second heat exchange medium is guided toward the axis of rotation for pressure reduction due to the centrifugal force.
  • the rotor 1 shows a rotor 1, which in the embodiment shown designed as a device for converting mechanical energy into thermal energy (and vice versa). This device is operated in particular as a rotary heat pump.
  • the rotor 1 has an axis of rotation 2, which is horizontal during operation, for example, about which the rotor 1 is rotated with the aid of a motor (not shown).
  • the rotor 1 has a compressor unit 3 in which a working medium is conducted away from the axis of rotation 2 to increase the pressure due to the centrifugal force.
  • the rotor 1 has an expansion unit 4 in which the working medium is guided towards the axis of rotation 2 to reduce the pressure.
  • the working medium is preferably conducted within the rotor 1 in a closed circuit.
  • FIG 2A shows a heat exchanger 7, also referred to as a heat exchanger, in an embodiment which can be implemented in the inner 5 and/or the outer heat exchanger 6.
  • the heat exchanger 7 is described below as an example for use as an external heat exchanger 6, ie as a high-pressure heat exchanger.
  • the heat exchanger 7 has an inlet element 8, via which the second heat exchange medium, ie the working medium, is fed to the heat exchanger 7, and an outlet element 9 which the second heat exchange medium leaves the heat exchanger 7.
  • the heat exchanger 7 is designed as a tube bundle heat exchanger.
  • the tube bundle heat exchanger has a cylindrical housing 10 in which a tube bundle is arranged.
  • the tube bundle comprises elongate tubes 11 arranged parallel and spaced apart in the radial and circumferential directions. Inside, the tubes 11 enclose second heat exchange channels 12 for the second heat exchange medium.
  • the tubes 11 are on opposite ends are each held in a tube sheet in the form of a base plate 11A (cf. Figure 2B ).
  • the first heat exchange medium is guided into the interior of the housing 10 via a feed 13 and, after the heat exchange with the second heat exchange medium, is discharged from the housing 10 via a discharge line 14 .
  • Figure 2B 12 shows the heat exchanger 7 in a simplified manner, the inflow and distribution of the gas to the individual second heat exchange channels 12 within the housing 10 being illustrated by arrows.
  • the design of the heat exchanger 7 as a tube bundle heat exchanger is fundamentally very advantageous for use with the rotor 1 . It is essential, however, that the flow through the second heat exchange channels 12 is uniform in order to use the heat transfer surface effectively.
  • the flow of the gas which is assumed to be ideal, i.e. without considering real gas properties, takes place only under the acceleration of gravity, and the heat exchanger is aligned in such a way that the acceleration of gravity has the same direction as the centrifugal acceleration, then the pressure difference between the outermost flow channel and the innermost flow channel is 0.14 mbar and is not taken into account due to the minimal effect.
  • the throttle device has a disk-shaped throttle orifice 31 that is circular as seen in the direction of flow of the second heat exchange medium and has a large number of circular throttle openings 32 which are arranged directly in front of the inflow openings 29 of the second heat exchange channels 12 .
  • the throttle openings 32 are arranged in rows, with the diameter of the throttle openings 32 increasing from row to row outwards, ie away from the axis of rotation 2 . Within a row, the throttle openings 32 have the same diameter.
  • Spiral turbulators 33 are inserted into the second heat exchange passages 12.
  • Various spiral turbulators 33 are provided to form the device 30 , which cause lower pressure losses in the second heat exchange medium the further away the spiral turbulators 33 are from the axis of rotation 2 .
  • a spiral turbulator 33 that is further away from the axis of rotation 2 can have a greater spiral length, see arrow 34, than a turbulator 33 that is closer to the axis of rotation 2, see arrow 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP21216865.2A 2021-12-22 2021-12-22 Échangeur de chaleur, en particulier échangeur de chaleur à faisceau tubulaire, destiné à être agencé dans un rotor doté d'un axe de rotation Withdrawn EP4202342A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP21216865.2A EP4202342A1 (fr) 2021-12-22 2021-12-22 Échangeur de chaleur, en particulier échangeur de chaleur à faisceau tubulaire, destiné à être agencé dans un rotor doté d'un axe de rotation
PCT/EP2022/087405 WO2023118402A1 (fr) 2021-12-22 2022-12-22 Échangeur de chaleur, en particulier échangeur de chaleur à calandre, pour agencement dans un rotor à axe de rotation
AU2022420806A AU2022420806A1 (en) 2021-12-22 2022-12-22 Heat exchanger, in particular shell-and-tube heat exchanger, for arrangement in a rotor having an axis of rotation
CA3236896A CA3236896A1 (fr) 2021-12-22 2022-12-22 Echangeur de chaleur, en particulier echangeur de chaleur a calandre, pour agencement dans un rotor a axe de rotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21216865.2A EP4202342A1 (fr) 2021-12-22 2021-12-22 Échangeur de chaleur, en particulier échangeur de chaleur à faisceau tubulaire, destiné à être agencé dans un rotor doté d'un axe de rotation

Publications (1)

Publication Number Publication Date
EP4202342A1 true EP4202342A1 (fr) 2023-06-28

Family

ID=79025000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21216865.2A Withdrawn EP4202342A1 (fr) 2021-12-22 2021-12-22 Échangeur de chaleur, en particulier échangeur de chaleur à faisceau tubulaire, destiné à être agencé dans un rotor doté d'un axe de rotation

Country Status (4)

Country Link
EP (1) EP4202342A1 (fr)
AU (1) AU2022420806A1 (fr)
CA (1) CA3236896A1 (fr)
WO (1) WO2023118402A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1383690A (en) * 1971-12-15 1974-02-12 Stord Bartz Industri As Heat exchangers
CH576615A5 (en) * 1973-07-05 1976-06-15 Fmc Corp Revolving linear tube heat exchanger - with cross-sections avoiding burn-inducing film build-up
WO2015103656A1 (fr) 2014-01-09 2015-07-16 Ecop Technologies Gmbh Dispositif de conversion d'une énergie thermique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1383690A (en) * 1971-12-15 1974-02-12 Stord Bartz Industri As Heat exchangers
CH576615A5 (en) * 1973-07-05 1976-06-15 Fmc Corp Revolving linear tube heat exchanger - with cross-sections avoiding burn-inducing film build-up
WO2015103656A1 (fr) 2014-01-09 2015-07-16 Ecop Technologies Gmbh Dispositif de conversion d'une énergie thermique

Also Published As

Publication number Publication date
WO2023118402A1 (fr) 2023-06-29
AU2022420806A1 (en) 2024-05-16
CA3236896A1 (fr) 2023-06-29

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