EP3067652B1 - Échangeur de chaleur et procédé d'échange de chaleur - Google Patents

Échangeur de chaleur et procédé d'échange de chaleur Download PDF

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Publication number
EP3067652B1
EP3067652B1 EP15461514.0A EP15461514A EP3067652B1 EP 3067652 B1 EP3067652 B1 EP 3067652B1 EP 15461514 A EP15461514 A EP 15461514A EP 3067652 B1 EP3067652 B1 EP 3067652B1
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EP
European Patent Office
Prior art keywords
fluid
shell
wall
heat exchanger
exchanger
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.)
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EP15461514.0A
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German (de)
English (en)
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EP3067652A1 (fr
Inventor
Jan Wajs
Dariusz Mikielewicz
Michal Bajor
Elzbieta Fornalik-Wajs
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Politechnika Gdanska
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Politechnika Gdanska
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Classifications

    • 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
    • F28F1/003—Multiple wall conduits, e.g. for leak detection
    • 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
    • F28D7/106—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 two coaxial conduits or modules of 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
    • F28D7/16—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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • 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
    • F28F13/003—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by using permeable mass, perforated or porous materials
    • 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
    • F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary
    • 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
    • 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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/04—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • 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
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes

Definitions

  • the subject of the invention is a shell-and-tube heat exchanger designed to perform a heat exchange, both in single-phase and bi-phase convection mechanisms, in general applications in the area of a broadly defined thermal technology, and in particular power industry, in industrial processes, as well as in the systems for the recovery of waste heat from technological and energetic processes.
  • a shell-and-tube heat exchanger wherein inside the shell there is a bundle of tubes, is disclosed.
  • this bundle of tubes there are tubes with a solid wall and tubes with a perforated wall.
  • jets of a first fluid are formed and perfuse the tubes with a solid wall in which a second fluid flows.
  • GB 2 164 438 A discloses a shell-and-tube heat exchanger for cooling exhaust gas passing in the tubes by water flowing in the shell, whereby the tubes are concentric double tubes with the inner tubes being perforated inducing a jet stream of gas from the inner to the outer tube. No dimensions or ratios are given in this document.
  • the aim of the invention is to solve the above-described problems occurring in the solutions known in the prior art, in particular by providing an exchanger structure allowing the use of the heat exchange intensification by perfusion with jets, while ensuring a large heat exchange surface in relation to dimensions of the heat exchanger and making full use of the surface.
  • a heat exchanger comprising a shell and at least one channel in the form of concentric tube and located inside the shell, with at least one perforated wall adapted to carry a first fluid, wherein the perforation of the wall is provided on at least a part of the surface of this perforated wall so that, as a result of the flow of the first fluid, microjets are formed in perforation openings, the shell being adapted to carry a second fluid, and at least one channel having an additional solid wall surrounding the perforated wall, characterised in that the shell contains a bundle comprising at least 3 pairs of concentric tubes with perforated walls and solid walls, said perforation openings in the perforated wall have dimensions smaller than 500 micrometres and a ratio of the distance between the solid wall and the perforated wall to the average diameter of the perforation openings is in the range of 0,5 to 25.
  • the perforation openings in the perforated wall have dimensions smaller than 500 micrometres, which ensures the formation of microjets in case of most of the fluids used in a large range of pressures and flow rates used. In particular, these dimensions may be diameters.
  • the perforation openings in the perforated wall are constituted by circular openings made in a staggered configuration, which ensures a more uniform perfusion.
  • the perforation openings in the perforated wall are made in a checkerboard configuration.
  • the shell has preferably a cylindrical shape, and the perforated wall and the solid wall are concentric tubes.
  • the use of such shapes allows obtaining advantageous mechanical properties - in particular resistance to high pressures of fluids, with a relatively small wall thickness. Due to this feature the exchanger may be lighter.
  • the shell is provided with auxiliary partitions positioned so as to force cross and parallel-current flow, i.e. so-called mixed flow of the second fluid.
  • auxiliary partitions positioned so as to force cross and parallel-current flow, i.e. so-called mixed flow of the second fluid.
  • Such flow also promotes acceleration of heat exchange.
  • At least one solid wall of at least one channel is externally ribbed on at least a part of its surface.
  • Such solution also accelerates heat exchange. Ribbing on individual channels, in particular on individual tubes, can be used, and common ribbing for all or a part of the solid walls of the channels can be also used.
  • the method for transferring heat between a first fluid and a second fluid according to the invention consists in that these fluids are introduced into the heat exchanger in which they are separated from each other by a partition.
  • a characteristic feature of this method is that as an exchanger, the exchanger according to the invention is used.
  • the partition is then constituted by solid walls.
  • first fluid and a second fluid virtually any fluid used for transferring heat, heating and cooling can be used, including in particular water, alcohol, flue gas, air, oil, low-boiling agents, nanoliquids or nanofluids.
  • the first fluid is preferably a gas
  • the second fluid is a liquid.
  • the heat exchange between the gas and the partition is usually slower, and the use of perfusion of the partition with gas microjets accelerates the process.
  • the first fluid is a condensing vapour
  • the second fluid is a liquid.
  • the first fluid is a gas
  • the second fluid is a vapourising liquid.
  • the first fluid and the second fluid are introduced into the exchanger countercurrently.
  • the first fluid and the second fluid are introduced into the exchanger cocurrently when one of the fluids is a vapourising liquid , or when one of the fluids is a condensing vapour.
  • the advantage of the heat exchanger with a heat exchange intensification by microjets according to the invention is that its construction allows for obtaining a high efficiency of energy transport while maintaining external dimensions and mass of the exchanger thanks to the good use of the heat exchange surface while intensifying the heat exchange by perfusion of this surface with jets. With fixed thermal parameters, this solution results in a significant reduction in external dimensions and mass of the exchanger, as well as in material consumption and costs of its production. Heat exchangers made according to the invention may be combined into larger networks of exchangers. Additionally, an advantage of the method according to the invention is that it allows compensation of differences in heat exchange rate between the partition and the first fluid, and between the partition and the second fluid.
  • Fig. 1 shows a general view of an embodiment of the shell-and-tube exchanger according to the invention
  • Fig. 2 shows a sectional view of this embodiment of the shell-and-tube heat exchanger according to the invention
  • Fig. 3 shows a schematic diagram of flow organisation of a heating agent in a bundle and of a heated agent perfusing the bundle
  • Fig. 4a shows a perforated wall with a perforation in a staggered distribution
  • Fig. 4b shows a perforated wall with a perforation in a checkerboard distribution
  • Fig. 5 shows a distribution of tubes in a bundle inside the shell in an embodiment of the exchanger according to the invention.
  • Fig. 1 a general view of the shell-and-tube heat exchanger with a microjet intensification of heat exchange in the bundle tubes is shown.
  • Fig. 2 shows this exchanger in cross-section.
  • the channels carrying the first fluid are tubes 50a, 50b, 50c, with double walls. Walls of these tubes are concentric. A perforated wall 5 forms an inner tube, and a solid wall 6 forms an outer tube.
  • a port 1 for the inlet of the heating agent i.e. the first fluid
  • the first fluid is used to supply the fluid to the bundle of tubes 50a, 50b, 50c, more specifically to the interior of the tubes with perforated walls 5.
  • the tubes with perforated walls 5 are enclosed in the tubes with solid walls 6 covering them.
  • the cooled first fluid is discharged through a port 2 for the outlet of the heating agent.
  • a heated agent i.e. the second fluid, is introduced through a port 3 for the inlet of the heated agent, and, after heating, is discharged through a port 4 for the outlet of the heated agent.
  • the first fluid from the port 1 for the heating agent inlet is distributed to three tubes with perforated walls 5.
  • the perforation openings in these walls have a diameter of 500 micrometres or smaller.
  • jets perfusing the inner surface of the tube with a solid wall 6 are generated. Thanks to this, the whole inner surface of the solid wall 6 is used as a heat exchange surface, subject to intensification due to the jet perfusion.
  • the solid walls 6 constitute a partition between the first fluid and the second fluid. Their total surface constitutes a heat exchange surface.
  • the heat exchange surface is the accumulated surface of the walls 6.
  • the second fluid is carried inside the shell 7 and isolated from the first fluid by solid walls 6 of the bundle tubes 50a, 50b, 50c.
  • flow direction "a" of the first fluid and flow direction "b" of the second fluid are indicated. They are opposite directions.
  • the tube bundle covered with the shell is constituted by three pairs/sets of concentric tubes 50a, 50b, 50c carrying the first fluid.
  • the space between the inner perforated wall 5 and the outer solid wall 6 of each of the tubes 50a, 50b, 50c is not filled with the first fluid.
  • This fluid spouts from the perforation openings 5 with jets onto the wall 6. Therefore, the space between the walls 5 and 6 is partially occupied by the first fluid jets.
  • the staggered distribution of the perforation openings ensures that the wall 6 is perfused with jets in a very similar manner to the completely uniform one.
  • FIG. 4a A tube with the staggered distribution of the perforation openings is shown in Fig. 4a .
  • any other distribution of openings e.g. checkerboard configuration illustrated in Fig. 4b , can be used, although it provides a somewhat slower heat exchange than the staggered distribution.
  • the heat exchanger according to the invention can be used with virtually any fluids used for transferring heat, heating and cooling, including in particular water, alcohols, flue gases, air, oil, low-boiling agents, nanoliquids or nanofluids.
  • Fluids used for transferring heat, heating and cooling including in particular water, alcohols, flue gases, air, oil, low-boiling agents, nanoliquids or nanofluids.
  • nanoliquids and nanofluids are used interchangeably to describe a fluid being a suspension of solid particles, in particular metals e.g. aluminium.
  • the exchanger according to the invention is particularly useful in heat transfer between the gas and the liquid.
  • gases are worse at transferring heat, and also the influence of the boundary layer on the heat exchange with a gas is more significant than in the case of a liquid. Therefore, in most known heat exchangers between the gas and the liquid separated from each other by a metal partition, a major limitation to the heat exchange rate is the intensity of the heat exchange between the partition and the gas.
  • heat transfer coefficient for the air is approx. 1000 W/(m 2 K) with an inflow of air under the pressure of 300 kPa and for the temperature difference between the partition and the fluid of 150 K.
  • the coefficient is 25 000 W/(m 2 K) with the temperature difference of 60 K and other conditions unchanged.
  • the diameter of the perforation opening which is used in the heat exchanger according to the invention is associated with the pressure of the first fluid. This problem is complex because the choice of this diameter is also dependent on the mass flow of the first fluid. These parameters should be chosen so that as a result of fluid flow under a predetermined pressure through a tube having a wall perforated with openings with a predetermined diameter, microjets are formed over its entire length.
  • the diameter of the openings of up to 500 micrometres ensures the formation of microjets in a wide range of pressures.
  • the pressure drop generated during the formation of a first fluid jet in an opening of the perforated wall 5 is dependent on the opening diameter and the wall thickness. A small thickness of the wall and a parallel flow distribution through the perforation openings in an embodiment of the exchanger according to the invention are very advantageous because they minimise the total hydraulic resistance associated with the flow of the first fluid through the heat exchanger.
  • the distance between the perforated wall (5) and the solid wall (6) is usually determined after determining the diameter of the perforation openings. This value affects the heat exchange rate under conditions in which the formation of microjets is ensured. It can be chosen experimentally or by numerical analysis. The best results were obtained under conditions in which the ratio of the distance between the solid wall and the perforated wall to the diameter of the perforation opening is in the range of 0.5 to 25.
  • the aim is to maximise the number of tube pairs 50a, 50b, 50c forming a tube bundle in the shell because, along with an increase in this number, also the maximum possible heat exchange surface for predetermined dimensions of the shell 7 increases.
  • Good packing of tubes within the shell improves compactness of the heat exchanger.
  • Compactness is determined by a parameter defined as the ratio of heat exchange surface of the exchanger to volume occupied by the fluid having worse properties for heat exchange.
  • An example of tube distribution in the cylindrical shell is shown in Fig. 5 .
  • a tube bundle arranged on a geometric grid is shown therein, with the omission of inner perforated tubes.
  • distance k between the outer tubes and the walls of the shell and the distance between the centres of the tubes i.e. so-called scale S.
  • Distance k is approximately equal to half the diameter of the outer tube.
  • the exchanger according to the invention is used in a countercurrent configuration in which the first fluid flows through the heat exchanger in a direction substantially opposite to the flow direction of the second fluid.
  • This configuration is preferable in most cases.
  • it is advisable to direct the flow of the two fluids in the same direction for example, in cases where phase transformations, i.e. boiling or condensation, take place in the exchanger.
  • phase transformations i.e. boiling or condensation
  • the intensification of heat exchange will also occur, as a result of the perfusion of the heat exchange partition with jets of the first fluid.
  • auxiliary partitions which will locally change, and even reverse the flow direction of the second fluid can be used. They will lead to turbulisation in the flow of the second fluid, thereby forcing a cross and parallel-current flow, i.e. so-called mixed flow of the second fluid.
  • This modification further accelerates the heat exchange between the second fluid and the partition.
  • This solution is appropriate if as a result of the heat exchange intensification between the first fluid and the partition, the rate of this exchange exceeds the rate of the exchange between the second fluid and the partition.
  • partitions will accelerate the resultant heat exchange.
  • the solid tubes 6 can be externally ribbed. Selected ones or all of the tubes can have individual ribbing on part or on the whole surface, or they can have a common ribbing resembling a lamella.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (12)

  1. Un échangeur de chaleur comprenant une coque (7) et au moins un canal situé à l'intérieur de la coque et sous la forme de tubes concentriques,
    avec au moins une paroi perforée (5) adaptée pour transporter un premier fluide, dans lequel la perforation de la paroi est prévue sur au moins une partie de la surface de cette paroi perforée (5) de sorte que, du fait de l'écoulement du premier fluide, des micro-jets soient formés dans des ouvertures de perforation, la coque (7) étant adaptée pour transporter un second fluide, et au moins un canal ayant une paroi pleine supplémentaire (6) entourant la paroi perforée (5), caractérisé en ce que
    la coque (7) contient un faisceau comprenant au moins 3 paires de tubes concentriques (50a, 50b, 50c) à parois perforées (5) et parois pleines (6), lesdites ouvertures de perforation dans la paroi perforée (5) ont des dimensions inférieures à 500 micromètres et le rapport entre la distance entre la paroi pleine (6) et la paroi perforée (5) et le diamètre moyen des ouvertures de perforation est compris entre 0,5 et 25.
  2. L'échangeur de chaleur selon la revendication 1, caractérisé en ce que les ouvertures de perforation dans la paroi perforée sont constituées par des ouvertures circulaires réalisées dans une configuration en quinconce.
  3. L'échangeur de chaleur selon la revendication 1, caractérisé en ce que les ouvertures de perforation dans la paroi perforée sont constituées par des ouvertures circulaires réalisées dans une configuration en damier.
  4. L'échangeur de chaleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la coque a une forme cylindrique, et la paroi perforée (5) et la paroi pleine (6) forment une paire de tubes concentriques (50a, 50b, 50c).
  5. L'échangeur de chaleur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la coque (7) est munie de cloisons auxiliaires positionnées de manière à forcer la circulation d'un courant transversal et parallèle du second fluide dans la coque (7).
  6. L'échangeur de chaleur selon la revendication 5, caractérisé en ce que la paroi pleine (6) d'au moins un canal est nervuré extérieurement sur au moins une partie de sa surface.
  7. Une méthode pour transférer de la chaleur entre le premier fluide et le deuxième fluide, dans laquelle ces fluides sont introduits dans l'échangeur de chaleur dans lequel ils sont séparés l'un de l'autre par une cloison,
    caractérisé en ce que l'échangeur tel que défini dans l'une quelconque des revendications 1 à 6 est utilisé comme échangeur.
  8. La méthode selon la revendication 7, dans laquelle le premier fluide est un gaz et le second fluide est un liquide.
  9. La méthode selon la revendication 7, dans laquelle le premier fluide est une vapeur de condensation et le second fluide est un liquide.
  10. La méthode selon la revendication 7, dans laquelle le premier fluide est un gaz et le second fluide est un liquide de vaporisation.
  11. La méthode selon l'une quelconque des revendications 7 à 10, caractérisée en ce que le premier fluide et le second fluide sont introduits dans l'échangeur à contre-courant.
  12. La méthode selon la revendication 9 ou 10, caractérisée en ce que le premier fluide et le second fluide sont introduits dans l'échangeur en même temps.
EP15461514.0A 2015-03-11 2015-03-11 Échangeur de chaleur et procédé d'échange de chaleur Active EP3067652B1 (fr)

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EP15461514.0A EP3067652B1 (fr) 2015-03-11 2015-03-11 Échangeur de chaleur et procédé d'échange de chaleur

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EP15461514.0A EP3067652B1 (fr) 2015-03-11 2015-03-11 Échangeur de chaleur et procédé d'échange de chaleur

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EP3067652A1 EP3067652A1 (fr) 2016-09-14
EP3067652B1 true EP3067652B1 (fr) 2019-11-13

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US11656010B2 (en) * 2020-06-02 2023-05-23 Hamilton Sundstrand Corporation Evaporator with feed tube flow distributors for random gravitation and acceleration fields

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US3963071A (en) * 1974-06-14 1976-06-15 Evgeny Sergeevich Levin Chell-and-tube heat exchanger for heating viscous fluids
GB2164438B (en) * 1984-09-14 1988-07-27 Aisin Seiki Heat exchangers
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JP2631892B2 (ja) * 1989-03-27 1997-07-16 株式会社日本ケミカル・プラント・コンサルタント 加熱装置
US5329994A (en) 1992-12-23 1994-07-19 Sundstrand Corporation Jet impingement heat exchanger
ATE213785T1 (de) * 1996-11-01 2002-03-15 Alcan Tech & Man Ag Verfahren und vorrichtung zum kühlen eines gegenstandes
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TWI410600B (zh) 2008-01-31 2013-10-01 Univ Southern Taiwan Tech 內部噴擊型殼管式熱交換器
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KR100986751B1 (ko) * 2009-09-17 2010-10-08 한국에너지기술연구원 Ｆｔ 슬러리 기포탑 반응기의 반응열 제거용 다단분리형 냉각장치

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