EP3128278B1 - Amenee et extraction d'ecoulements tubulaires par temperature intermediaire pour des echangeurs de chaleur a bobines - Google Patents

Amenee et extraction d'ecoulements tubulaires par temperature intermediaire pour des echangeurs de chaleur a bobines Download PDF

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Publication number
EP3128278B1
EP3128278B1 EP15002356.2A EP15002356A EP3128278B1 EP 3128278 B1 EP3128278 B1 EP 3128278B1 EP 15002356 A EP15002356 A EP 15002356A EP 3128278 B1 EP3128278 B1 EP 3128278B1
Authority
EP
European Patent Office
Prior art keywords
tube
longitudinal axis
heat exchanger
tubes
section
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.)
Not-in-force
Application number
EP15002356.2A
Other languages
German (de)
English (en)
Other versions
EP3128278A1 (fr
Inventor
Manfred Steinbauer
Christiane Kerber
Jürgen Spreemann
Konrad Braun
Niels Treuchtlinger
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Priority to EP15002356.2A priority Critical patent/EP3128278B1/fr
Priority to US15/219,345 priority patent/US20170038149A1/en
Priority to RU2016132134A priority patent/RU2016132134A/ru
Priority to CN201610861037.2A priority patent/CN106440873A/zh
Publication of EP3128278A1 publication Critical patent/EP3128278A1/fr
Application granted granted Critical
Publication of EP3128278B1 publication Critical patent/EP3128278B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F28D7/10—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 one within the other, e.g. concentrically
    • F28D7/103—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 one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
    • 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
    • F28D7/04—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 spirally coiled
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
    • 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
    • F28D7/02—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 helically coiled
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/006—Tubular elements; Assemblies of tubular elements with variable shape, e.g. with modified tube ends, with different geometrical 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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • 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
    • F28F2210/00—Heat exchange conduits
    • F28F2210/10—Particular layout, e.g. for uniform temperature distribution

Definitions

  • the invention relates to a heat exchanger according to claim 1.
  • Such a heat exchanger has a pressure-bearing jacket, which surrounds a jacket space for accommodating a first fluid and extends along a longitudinal axis, and a core tube extending in the jacket, which extends along the longitudinal axis, which - in particular along along with a heat exchanger arranged as intended the vertical runs.
  • the heat exchanger further comprises a tube bundle arranged in the jacket space, which has a plurality of tubes and serves for receiving the second fluid (or a plurality of fluids), wherein these tubes helically extend in a winding region running along the longitudinal axis, starting from a lower winding end to an upper winding end the core tube are wound.
  • EP-A-2667135 discloses a heat exchanger according to the preamble of claim 1.
  • the present invention is based on the problem to provide a heat exchanger of the type mentioned, in which the temperature of a pipe flow can be influenced in a relatively simple manner.
  • the heat exchanger has at least one tube which is wound only in a portion of the winding area around the core tube or about the longitudinal axis, wherein the at least one tube along the longitudinal axis below the section as a straight tube to the lower end of the coil and / or wherein the at least one tube extends along the longitudinal axis above the portion as a straight tube to the upper coil end.
  • the wound heat exchanger is further characterized in that the tubes of the tube bundle are wound on the core tube such that the core tube carries the load of the tubes of the tube bundle.
  • the tubes may be wound in multiple layers on the core tube, wherein spacers may be provided between the individual layers.
  • the tube bundle can furthermore have a plurality of tube groups, the tubes having a tube group via a common inlet or outlet. have, so that the tubes of a tube group are fed with a flow of material, which is divisible or distributed to the individual tubes of the tube group.
  • the at least one tube or the corresponding tube flow is helically wound around the core tube or around the longitudinal axis only in the named section and only appreciably participates in the heat transfer there, whereby it under- and / or above the section tube sections has, which run straight along the longitudinal axis or along the core tube and therefore hardly involved in the heat exchange compared to the wound part of the at least one tube.
  • the said pipe sections may be formed integrally with the wound part or may otherwise be fluidly connected to the wound part.
  • a straight course of a pipe / pipe section is understood in particular to mean a linear course of the pipe or pipe section.
  • a straight course in the sense of the present invention is also present if the course in question has one or more bends, but the relevant tube section is involved in the heat exchange in a significantly lesser extent compared to the wound part in said section.
  • Such a course of a pipe section is e.g. given when the relevant pipe section extends at least in sections along or parallel to the longitudinal axis and / or is wound over its entire length along the longitudinal axis less than 180 ° to the core tube or the longitudinal axis of the heat exchanger.
  • the section is selected and positioned along the longitudinal axis that, when the heat exchanger is operated as intended, desired intermediate temperatures are present in the section which are smaller than a temperature prevailing at the lower end of the coil and / or larger are considered to be at the upper coil end temperature.
  • the heat exchanger has a plurality of tubes which are wound only in a portion of the winding area around the core tube or the longitudinal axis, said tubes along the longitudinal axis below the portion as straight tubes to the lower coil end run and / or wherein these tubes extend along the longitudinal axis above the portion as straight tubes to the upper coil end.
  • these multiple tubes can be wound in several layers around the core tube or the longitudinal axis.
  • the plurality of tubes of said tube bundle can be wound in several layers around the core tube or the longitudinal axis.
  • the heat exchanger according to the invention is preferably used for carrying out an indirect heat exchange between a refrigerant flow as a first fluid and a hydrocarbon-containing stream as a second fluid, wherein in particular the hydrocarbon-containing stream is formed by natural gas.
  • the heat exchanger according to the invention can be used with all imaginable streams.
  • FIG. 1 shows in connection with FIG. 2 a heat exchanger 1 according to the invention, which is characterized in that it comprises a tube bundle 2 with at least one tube 200 (see, in particular Fig. 2 ), which is not wound over the entire bundle length along a longitudinal axis L or along a core tube 21 of the heat exchanger 1 around the core tube 21, but only in a portion A of the entire winding area W.
  • the tube 200 pipe sections 200a, 200b, which extend substantially straight, in particular linear, along the longitudinal axis L or along the core tube 21.
  • the wound part of the tube 200 in section A is exposed only to pre-definable, desired temperatures and does not significantly participate in the heat exchange due to its straight path outside the section A.
  • the pipe sections 200a, 200b may be integrally formed on the wound section A or otherwise fluidly connected to the wound section.
  • the heat exchanger according to FIGS. 1 and 2 each have a core tube 21, on which the tubes 20, 200 of the tube bundle 20 are wound, so that in particular the core tube 21 carries the load of the tubes 20, 200.
  • the invention is also applicable to wound heat exchanger without core tube.
  • the heat exchanger 1 is designed for the indirect heat transfer between a first and a second fluid and has a jacket 10 which surrounds a jacket space M for receiving the first fluid, which can be introduced into the jacket space M via an inlet connection 101 on the jacket 10 a corresponding outlet port 102 on the jacket 10 again from the shell space M is removable.
  • the jacket 10 extends along the said longitudinal axis L, which preferably extends along the vertical with respect to a heat exchanger 1 arranged as intended.
  • the tube bundle 2 is further arranged with a plurality of tubes 20 for receiving the second fluid.
  • These tubes 20 are helically wound around a core tube 21 in a winding region W extending along the longitudinal axis L from a lower coil end E to an upper coil end E 'in multiple layers 22, the core tube 21 also extending along the longitudinal axis L. and concentric in the shell space M is arranged.
  • Several tubes 20 of the tube bundle 2 can each form a tube group (in the FIG.
  • the heat exchanger 1 or its tube bundle 2, as from Fig. 2 can be seen, at least one tube 200, which only in a section A of Winding portion W is wound around the core tube 21 (or the longitudinal axis L), wherein in this section A prevail those temperatures that are desired for the heat exchange of the guided in the pipe 200 stream.
  • These temperatures may be selected by location of the portion A along the longitudinal axis L relative to the winding area W and by selecting the extent of the portion A along the longitudinal axis L.
  • the tube bundle 2 or a material flow guided therein has an inlet side according to FIG. 2 at the bottom winding end E an inlet temperature T e and the upper winding end E ', an output temperature T E' on.
  • the at least one pipe 200 pipe sections 200a and 200b which extend substantially straight or linearly to the lower or upper winding end E, E 'and from there to an associated inlet port 103 and outlet pipe 105 are guided.
  • the desired temperatures T A and T A ' prevail. Since the pipe sections 200a and 200b do not substantially participate in the heat transfer, prevails at the respective end of the pipe section 200a or 200b, ie, at the winding end E and E ', respectively, with a temperature T A and T A' comparable temperature.
  • the jacket 10 and the core tube 21 can furthermore be of cylindrical design, at least in sections, so that the longitudinal axis L forms a cylinder axis of the jacket 10 and of the concentric core tube 21 extending therein.
  • a shirt 3 can be arranged in the jacket space M, which encloses the tube bundle 2 or the at least one tube 200, so that a space 4 surrounding the tube bundle 2 or tube 200 is formed between the tube bundle 2 and that shirt 3.
  • the shirt 3 serves to suppress as far as possible a bypass flow of the first fluid guided in the jacket space M, with which the tube bundle 2 / tube 200 is acted upon, on the tube bundle 2 / tube 200.
  • the first fluid is thus preferably guided in the jacket space M in the region of the jacket space M surrounded by the shirt 3.
  • the individual pipe layers 22 (in particular in the case of horizontal support of the tube bundle 2) can be supported against one another or on the core tube 21 via spacer elements 6 which extend along the longitudinal axis L.
  • spacer elements 6 which extend along the longitudinal axis L.
  • a plurality of spacer elements 6 can be arranged one above the other in the radial direction R of the tube bundle 2.

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  • 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)

Claims (6)

  1. Echangeur de chaleur spiralé permettant un échange de chaleur indirect entre un premier et un deuxième fluide, et présentant
    une enveloppe (10) qui entoure un espace enveloppé (M) qui reprend le premier fluide et qui s'étend suivant un axe longitudinal (L),
    un faisceau (2) de tubes disposé dans l'espace enveloppé et présentant plusieurs tubes (20) qui reprennent le deuxième fluide, qui sont enroulés dans une partie d'enroulement (W) qui s'étend en hélice autour de l'axe longitudinal (L) et le long de l'axe longitudinal (L) entre une extrémité inférieure d'enroulement (E) et une extrémité supérieure d'enroulement (E'),
    caractérisé en ce que
    l'échangeur de chaleur (1) présente au moins un tube (200) qui n'est enroulé autour de l'axe longitudinal (L) que dans une section (A) de la partie d'enroulement (W), le ou les tubes (200) s'étendant le long de l'axe longitudinal (L) sous la forme d'un tube rectiligne (200a) qui s'étend en dessous de la section (A) jusqu'à l'extrémité inférieure d'enroulement (E) et/ou le ou les tubes s'étendant le long de l'axe longitudinal (L) sous la forme d'un tube rectiligne (200b) qui s'étend au-dessus de la section (A) jusqu'à l'extrémité supérieure d'enroulement (E').
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que l'échangeur de chaleur présente un tube d'âme (21) s'étendant dans l'enveloppe le long de l'axe longitudinal (L), les tubes (20) étant enroulés en hélice autour du tube d'âme (21) dans la partie d'enroulement (W) s'étendant suivant l'axe longitudinal (L) entre l'extrémité inférieure d'enroulement (E) et l'extrémité supérieure d'enroulement (E).
  3. Echangeur de chaleur selon les revendications 1 ou 2, caractérisé en ce que la section (A) est sélectionnée et disposée le long de l'axe longitudinal (L) de telle sorte que dans un fonctionnement correct de l'échangeur de chaleur (1), les températures intermédiaires (TA-TA) qui règnent dans la section (A) sont inférieures à la température (TE) qui règne à l'extrémité inférieure d'enroulement (E) et/ou supérieures à la température (TE') qui règne à l'extrémité supérieure d'enroulement (E').
  4. Echangeur de chaleur selon l'une des revendications précédentes, caractérisé en ce que l'échangeur de chaleur (1) présente plusieurs tubes (200) qui ne sont enroulés autour de l'axe longitudinal (L) et/ou du tube d'âme (21) que dans la section (A) de la partie d'enroulement (W), ces tubes (200) s'étendant le long de l'axe longitudinal (L) sous la forme d'un tube rectiligne (200a) qui s'étend en dessous de la section (A) jusqu'à l'extrémité inférieure d'enroulement (E) et/ou ces tubes (200) s'étendant le long de l'axe longitudinal (L) sous la forme d'un tube rectiligne (200b) qui s'étend au-dessus de la section (A) jusqu'à l'extrémité supérieure d'enroulement (E').
  5. Echangeur de chaleur selon la revendication 4, caractérisé en ce que ces tubes (200) sont enroulés en plusieurs couches autour de l'axe longitudinal (L)
  6. Echangeur de chaleur selon l'une des revendications précédentes, caractérisé en ce que les tubes (20) du faisceau (2) de tubes sont enroulés en plusieurs couches autour de l'axe longitudinal (L) et/ou autour du tube d'âme (21).
EP15002356.2A 2015-08-06 2015-08-06 Amenee et extraction d'ecoulements tubulaires par temperature intermediaire pour des echangeurs de chaleur a bobines Not-in-force EP3128278B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15002356.2A EP3128278B1 (fr) 2015-08-06 2015-08-06 Amenee et extraction d'ecoulements tubulaires par temperature intermediaire pour des echangeurs de chaleur a bobines
US15/219,345 US20170038149A1 (en) 2015-08-06 2016-07-26 Supply and extraction of tube flows at intermediate temperature in helically coiled heat exchangers
RU2016132134A RU2016132134A (ru) 2015-08-06 2016-08-04 Подача и извлечение трубных потоков при промежуточной температуре в змеевиковых теплообменниках
CN201610861037.2A CN106440873A (zh) 2015-08-06 2016-08-05 螺旋形盘绕式换热器中的中间温度的管内流的提供和提取

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15002356.2A EP3128278B1 (fr) 2015-08-06 2015-08-06 Amenee et extraction d'ecoulements tubulaires par temperature intermediaire pour des echangeurs de chaleur a bobines

Publications (2)

Publication Number Publication Date
EP3128278A1 EP3128278A1 (fr) 2017-02-08
EP3128278B1 true EP3128278B1 (fr) 2018-06-20

Family

ID=53871805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15002356.2A Not-in-force EP3128278B1 (fr) 2015-08-06 2015-08-06 Amenee et extraction d'ecoulements tubulaires par temperature intermediaire pour des echangeurs de chaleur a bobines

Country Status (4)

Country Link
US (1) US20170038149A1 (fr)
EP (1) EP3128278B1 (fr)
CN (1) CN106440873A (fr)
RU (1) RU2016132134A (fr)

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CN106440873A (zh) 2017-02-22
EP3128278A1 (fr) 2017-02-08
RU2016132134A (ru) 2018-02-08

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