EP3132222A1 - Heat-exchanger module with improved heat exchange and compactness, use with liquid metal and gas - Google Patents
Heat-exchanger module with improved heat exchange and compactness, use with liquid metal and gasInfo
- Publication number
- EP3132222A1 EP3132222A1 EP15725882.3A EP15725882A EP3132222A1 EP 3132222 A1 EP3132222 A1 EP 3132222A1 EP 15725882 A EP15725882 A EP 15725882A EP 3132222 A1 EP3132222 A1 EP 3132222A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- channels
- exchanger module
- heat exchanger
- module according
- 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.)
- Granted
Links
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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
-
- 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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0022—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for chemical reactors
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0054—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for nuclear applications
Definitions
- the present invention relates to a heat exchanger module incorporating at least one fluid circuit.
- the invention relates more particularly to the realization of a new type of heat exchanger module to improve the compactness and heat exchange power, equivalent losses.
- the known heat exchangers comprise either at least two internal fluid circulation channel circuits.
- the heat exchange takes place between the circuit and a surrounding fluid in which it is immersed.
- the heat exchange takes place between the two fluid circuits.
- the main use of an exchanger module between two fluids according to the invention is its use with a gas as one of the two fluids. It can advantageously be liquid metal and gas, for example liquid sodium and nitrogen.
- the main application targeted by an exchanger module according to the invention is the heat exchange between a liquid metal, such as liquid sodium, of the secondary loop and nitrogen as a gas of the tertiary loop of a fast neutron reactor cooled with the liquid metal, such as liquid sodium said RNR-Na or SFR (acronym for "Sodium Fast Reactor") and which is part of the so-called family of fourth generation reactors.
- a heat exchanger module according to the invention can also be implemented in any other application requiring an exchange between two fluids, such as a liquid and a gas, preferably when it is necessary to have a compact exchanger. and of great thermal power.
- primary fluid means the usual thermal meaning, namely the hot fluid which transfers its heat to the secondary fluid which is the cold fluid.
- secondary fluid in the context of the invention, the usual thermal sense, namely the cold fluid to which is transferred the heat of the primary fluid.
- the primary fluid is the sodium that circulates in the so-called secondary loop of the thermal conversion cycle of a reactor RNR-Na, while the secondary fluid is the nitrogen that circulates in the tertiary loop of said cycle.
- a heat exchange pattern is defined by a structure delimited by fins, the structures being reported between two metal plates and can have very varied geometries.
- the exchange pattern may be different between one of the two fluid circuits of the exchanger and the other.
- the assembly between metal plates is usually by soldering or by diffusion welding.
- Corrugated or corrugated plate heat exchangers are also known.
- the corrugations are created by stamping a plate separating the two fluid circuits.
- the exchange pattern is identical for each of the two fluid circuits.
- the flow of fluids generated by this type of exchange pattern is three-dimensional and, therefore, is very efficient.
- the joining between plates is done either by bolted connection or by their peripheral welding (conventional welding, or welding-diffusion).
- machining is mechanical or electrochemically.
- the channels defined by the machining are of millimeter section and are usually continuous and in a regular zigzag profile.
- the plates are assembled by welding-diffusion allowing welding on all points of contact between two adjacent plates. This type of milled plate heat exchanger is intrinsically very resistant to pressure.
- the inventors of the present invention have evaluated these different plate heat exchanger technologies to design an exchanger between a gas and a liquid metal in the context of the realization of a nuclear reactor of the so-called fourth-generation reactor family. that is to say in a heat exchange configuration between an excellent coolant, the liquid metal, and a fluid with much lower thermal transport properties, the gas. They reached the main conclusions that can be enumerated as follows:
- the plate heat exchangers incorporating fins are a method of preparation which is difficult to reconcile with a nuclear component
- the stamped plate heat exchangers although having a high compactness and a high unit thermal power, are not compatible with a pressure difference between gas and liquid metal in the context of the nuclear reactor cooled with the latter and therefore are not robust;
- machined grooved plate heat exchangers are robust, both to satisfy thermo-hydraulic and thermomechanical performance but have a lower compactness than stamped plate heat exchangers for an equivalent pressure drop.
- the object of the invention is to at least partially meet this need.
- the subject of the invention is a longitudinal axis heat exchanger module (X) comprising at least two fluid circuits, a first one comprising at least one pair of fluid circulation channels each extending parallel to the longitudinal axis (X), the two channels of the same pair being superimposed on one another and opening into one another in a plurality of crossing zones each defining a mixing zone of the fluid with himself within the first circuit.
- X longitudinal axis heat exchanger module
- an exchanger module according to the invention has both improved heat exchange performance compared to a machined plate heat exchanger according to the state of the art and an improved robustness compared to a stamped plate heat exchanger according to the state of the art.
- an exchanger module according to the invention has an increased compactness with respect to a heat exchanger according to the state of the art.
- each channel has a zigzag profile curved at least in part, preferably regular over its length.
- Such a curved regular zigzag profile for each of the intersecting channels allows a great flexibility of design, by varying the geometrical parameters of each channel, in particular the geometry of the section of each channel, the angle of the segments right of the canal, the length between two elbows, the radius of curvature of the elbows, the distance between the channels.
- the constituent metallic material of the exchanger module according to the invention is chosen according to the conditions of its required use, namely the pressure of the fluids, the temperatures and natures of the fluids flowing through the module. It may be for example aluminum, copper, nickel, titanium or alloys of these elements as well as a steel, especially an alloy steel or a stainless steel or a refractory metal selected from alloys of niobium, molybdenum, tantalum or tungsten.
- the regular curved zigzag profile comprises elbows and straight segments, a line segment connecting two consecutive elbows.
- a channel may have an ovoid, circular, rectangular or square section.
- a section with a plane of symmetry favors the disturbances of the flows and a better mixing of the fluid with itself.
- the square or rectangular sections also allow a better compactness.
- the radius of curvature of the elbows is between 0.5 and 3 Dh of the channel
- FIG. 5 is a perspective view of three pairs of channels in a heat exchanger module according to the invention.
- the module comprising a pair of fluid circulation channels 1, 2 each extending parallel to the longitudinal axis X.
- thermal compactness is defined here as the thermal power exchanged Pth per unit volume, which proportional to the number of channels N times the overall overall length L of an exchanger.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1453407A FR3020135A1 (en) | 2014-04-16 | 2014-04-16 | HEAT EXCHANGER MODULE WITH IMPROVED THERMAL EXCHANGE AND COMPACITY, USE WITH LIQUID METAL AND GAS. |
PCT/IB2015/052705 WO2015159213A1 (en) | 2014-04-16 | 2015-04-14 | Heat-exchanger module with improved heat exchange and compactness, use with liquid metal and gas |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3132222A1 true EP3132222A1 (en) | 2017-02-22 |
EP3132222B1 EP3132222B1 (en) | 2019-05-08 |
Family
ID=51417385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15725882.3A Active EP3132222B1 (en) | 2014-04-16 | 2015-04-14 | Heat-exchanger module, use with liquid metal and gas |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170030660A1 (en) |
EP (1) | EP3132222B1 (en) |
KR (1) | KR20160145155A (en) |
FR (1) | FR3020135A1 (en) |
TN (1) | TN2016000436A1 (en) |
WO (1) | WO2015159213A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016205353A1 (en) * | 2016-03-31 | 2017-10-05 | Mahle International Gmbh | The stacked-plate heat exchanger |
US20180347175A1 (en) * | 2017-06-01 | 2018-12-06 | Solar Turbines Incorporated | Modular building structure for a turbomachinery equipment |
US11959708B2 (en) * | 2017-12-14 | 2024-04-16 | Solex Thermal Science Inc. | Plate heat exchanger for heating or cooling bulk solids |
EP4349143A1 (en) * | 2021-05-27 | 2024-04-10 | Valeo eAutomotive Germany GmbH | Cooling structure, power module comprising such a cooling structure, electrical power converter, such as an inverter, comprising such a power module |
KR200497463Y1 (en) * | 2021-09-27 | 2023-11-17 | 쥔 허 테크놀로지 컴퍼니 리미티드 | Heat exchanger |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2284849A1 (en) * | 1974-09-16 | 1976-04-09 | Metalliques Entrepr Cie Fse | Thin plate multi-panel radiators of great capacity - partic for atmos cooling of hot effluent from nuclear reactors |
JPS6176889A (en) * | 1984-09-19 | 1986-04-19 | Mitsubishi Heavy Ind Ltd | Plate type heat exchanger |
HU195314B (en) * | 1985-07-23 | 1988-04-28 | Villamos Ipari Kutato Intezet | Cooling insert for equipments carrying out heat and material exchange being between gaseous medium and fluid particularly for cooling towers and degasing units |
EP0283718B1 (en) * | 1987-03-25 | 1990-09-12 | Johann Schönhammer | Counter-current heat exchanger |
US6544357B1 (en) * | 1994-08-01 | 2003-04-08 | Franz Hehmann | Selected processing for non-equilibrium light alloys and products |
US7311139B2 (en) * | 2005-08-11 | 2007-12-25 | Generac Power Systems, Inc. | Heat exchanger |
EP2172730B1 (en) * | 2007-07-23 | 2015-08-19 | Tokyo Roki Co. Ltd. | Plate laminate type heat exchanger |
FR2945612B1 (en) * | 2009-05-18 | 2011-07-22 | Alfa Laval Vicarb | METHOD FOR MANUFACTURING A PLATE BEAM FOR A THERMAL EXCHANGER |
CN103328092B (en) * | 2011-01-13 | 2017-06-13 | DPx控股有限公司 | Vibration fluid micro-reactor |
WO2013016127A2 (en) * | 2011-07-22 | 2013-01-31 | 8 Rivers Capital, Llc | Heat exchanger comprising one or more plate assemblies with a plurality of interconnected channels and related method |
JP5901343B2 (en) * | 2012-02-24 | 2016-04-06 | 三菱電機株式会社 | Cooler and cooling device |
US20130271918A1 (en) * | 2012-04-16 | 2013-10-17 | John Philip Neville Hughes | Cold plate with reduced bubble effects |
-
2014
- 2014-04-16 FR FR1453407A patent/FR3020135A1/en active Pending
-
2015
- 2015-04-14 EP EP15725882.3A patent/EP3132222B1/en active Active
- 2015-04-14 KR KR1020167031910A patent/KR20160145155A/en unknown
- 2015-04-14 TN TN2016000436A patent/TN2016000436A1/en unknown
- 2015-04-14 US US15/303,756 patent/US20170030660A1/en not_active Abandoned
- 2015-04-14 WO PCT/IB2015/052705 patent/WO2015159213A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FR3020135A1 (en) | 2015-10-23 |
KR20160145155A (en) | 2016-12-19 |
EP3132222B1 (en) | 2019-05-08 |
TN2016000436A1 (en) | 2018-04-04 |
US20170030660A1 (en) | 2017-02-02 |
WO2015159213A1 (en) | 2015-10-22 |
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