WO2002063231A1 - Echangeur thermique a flux en spirale - Google Patents

Echangeur thermique a flux en spirale Download PDF

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Publication number
WO2002063231A1
WO2002063231A1 PCT/AU2002/000107 AU0200107W WO02063231A1 WO 2002063231 A1 WO2002063231 A1 WO 2002063231A1 AU 0200107 W AU0200107 W AU 0200107W WO 02063231 A1 WO02063231 A1 WO 02063231A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
flow path
membranes
passage
flow
Prior art date
Application number
PCT/AU2002/000107
Other languages
English (en)
Inventor
Alan Robert Burns
Original Assignee
Pursuit Dynamics Plc
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 Pursuit Dynamics Plc filed Critical Pursuit Dynamics Plc
Publication of WO2002063231A1 publication Critical patent/WO2002063231A1/fr

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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
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
    • F24H1/282—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes with flue gas passages built-up by coaxial water mantles
    • 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
    • F28D9/04—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 being formed by spirally-wound plates or laminae
    • 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
    • F28F3/022—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being wires or pins

Definitions

  • This invention relates to a heat exchanger and to a method of constructing a heat exchanger.
  • the invention also relates to a heater for heating a fluid medium.
  • the heater may be a boiler or a steam generator.
  • the invention relates to a flow passage for a fluid, the flow passage having various applications including in a heat exchanger and a boiler according to the invention.
  • Steam-generating boilers utilise heat from a furnace and flue gases to generate steam.
  • Steam-generating boilers are generally of two types, being a fire-tube boiler in which hot furnace gases pass through tubes in a water space, and a water-tube boiler in which water is evaporated in tubes arranged inside a heated chamber where they are exposed to the radiant heat of flames and hot flue gases.
  • Water-tube boilers generally contain the least amount of water in the system for a given rate of steam production.
  • Water-tubes in such boilers are of cylindrical pipe section, as it is generally believed that the cylindrical pipe section is necessary in order to withstand both the external and internal pressures to which the tubes are subjected during operation of the boiler.
  • a heat exchanger comprising a first fluid flow path and a second fluid flow path, the two fluid flow paths being disposed one adjacent the other in a spiral arrangement, each flow path having an inlet and an outlet with the flow path extending spirally between the inlet and the outlet.
  • the flow paths are separated by a common wall.
  • the flow paths are of a cross-sectional shape in which the dimension thereof transverse to the common wall is significantly less than the dimension thereof along the common wall.
  • each flow path is of a generally rectangular cross-section, with the common wall defining one larger side of the generally rectangular cross-section.
  • the inlet of one fluid flow path is associated with the radially inner end thereof and the outlet. associated with the radially outer end thereof, and the inlet of the other fluid flow path is associated with the radially outer end thereof and the outlet being associated with the radially inner end thereof.
  • first and second flow paths are spirally wound in a common plane.
  • first and second flow paths may be spirally wound in a helical fashion so as to extend along an axial direction in the spiralling arrangement.
  • the two flow paths are defined between two membranes positioned in face-to-face relationship and rolled into a scroll formation.
  • the two membranes may be defined by separate sheets, or by a single sheet folded upon itself, or a tubular element having two opposed walls defining the membranes.
  • a first spacer means may be accommodated in the first fluid path and a second spacer means may be accommodated in the second fluid flow path.
  • the two spacer means are intended to provide lateral support for walls defining the two flow paths.
  • the respective spacer means are sandwiched between the membranes which provide the walls of the flow paths.
  • Each spacer means is of a configuration so as to provide lateral support for the walls while also permitting fluid flow along the respective flow path in which it is accommodated.
  • Each spacer means may comprise a spacer structure which co-operates with the membranes to define interstices through which fluid can pass.
  • each spacer structure comprises a mesh structure, such as for example a sheet of woven metallic mesh.
  • each spacer means need not necessarily be formed separately of the membranes.
  • each spacer means may, for example, be formed integrally with either one or both of the membranes.
  • a heater incorporating a heat exchanger according to the first aspect of the invention as defined above wherein one flow path thereof defines a passage for hot gases from a combustion process, and the other flow path thereof defines a passage for a flow medium being heated.
  • the heater is particularly suitable as a boiler. Furthermore, such a boiler is particularly suitable for use as a steam generator in which case the flow medium being heated would be water.
  • the hot combustion gases and the flow medium are in counter-flow.
  • the hot combustion gases flow in an outward spiralling arrangement and the flow medium undergoing heating flows in a spiralling inward direction.
  • the heater further comprises a combustion chamber surrounded by the spiralling paths.
  • the flow path which provides the passage for hot combustion gases communicates at the radially inner end thereof with the combustion chamber.
  • This thus provides a combustion zone which occupies the combustion chamber and spirals radially outwardly therefrom.
  • the spiralling combustion zone preferably provides a smooth, radially progressive cyclonic path enabling even temperature gradients during the combustion cycle and a lowering of the velocity gradient as the combustion gases spiral outwardly. This assists in the complete extraction of heat from the combustion gases before exiting at the outlet.
  • the spacer means accommodated in the passage for hot combustion gases preferably functions as a turbulator to create turbulence in the gas flow.
  • the turbulator enhances the combustion process as well as heat transfer.
  • the turbulator may have a catalytic action.
  • fluid medium such as water is delivered to the heater under pressure, entering through the inlet and spiralling inward in counter-flow to the combustion gases.
  • the outlet of the fluid medium flow path may communicate with a manifold located adjacent the combustion chamber.
  • a particular feature of the construction is the lateral support provided to the membranes by the spacer means therebetween.
  • the spacer means provide intemal and external support for the spiral arrangement thereby providing structural strength to the assembly.
  • the spacer means in the fluid medium flow passage may also function as a turbulator to create turbulence in the fluid medium flow.
  • the turbulator in the fluid medium flow passage enhances thermal conductivity and heat transfer to the fast flowing fluid medium as it progressively travels through the passage.
  • the spacer means also has the effect of occupying volumetric space within the fluid medium passage. This is particularly beneficial where the heater is a boiler for generating steam as the use of a smaller quantity of contained water within the system is conducive to rapid generation of steam.
  • the two spacer means performs the function of inner support of the membrane walls, balancing the forces of external pressure created by thermal expansion.
  • a fuel/air burner may be associated with the combustion chamber.
  • the burner is located at or adjacent one axial end of the combustion chamber.
  • the other axial end of the combustion chamber may be closed by a wall structure incorporating a heat exchanger by means of which fluid medium (which is feed water in the case of a boiler) is pre-heated prior to delivery to the inlet of the fluid medium flow passage.
  • the boiler according to the invention is particularly suitable for use as a once- through steam generator.
  • a method of constructing a heat exchanger comprising the steps of: positioning two membranes in face-to-face relation such that a first space is defined therebetween; and rolling the membranes into a scroll formation with a second space defined therebetween, whereby the first space provides a first spirally extending fluid flow path and the second space provides a spirally extending second fluid flow path.
  • the method further includes the step of positioning a first spacer means between the two membranes.
  • the method further includes positioning a second spacer means adjacent one of the membranes on the side thereof opposite the side thereof opposite the first spacer means.
  • a method of constructing a heater comprising the steps of: positioning two membranes in face- to-face relation such that a first space is defined therebetween; and rolling the membranes into a scroll formation with a second space defined therebetween, whereby the first space provides a spirally extending flow path for water or other fluid to be heated and the second space provides a spirally extending flow path for a hot fluid such as a hot combustion gas.
  • a flow passage for a fluid comprising a duct having a first wall, the duct being of a cross-sectional configuration in which the dimension thereof transverse to the first wall is significantly less than the dimension thereof along the common wall.
  • the duct has a second wall in opposed relation to the first wall, and a spacer means interposed between the two walls to provide lateral support therefor.
  • the duct has a cross-sectional of a general rectangular configuration.
  • FIG 1 is a schematic partly sectioned perspective view of a boiler according to the embodiment
  • Figure 2 is an exploded perspective view of the boiler
  • Figure 3 is a sectional view along line 3-3 of Figure 1 ;
  • Figure 4 is a fragmentary cross-sectional view illustrating a water flow passage and a gas flow passage within the boiler
  • FIG. 5 is a fragmentary perspective view illustrating part of the construction of the boiler.
  • Figure 6 is a partly cut-away schematic perspective view illustrating membranes to be rolled into a scroll formation in constructing the boiler.
  • the embodiment shown in the drawings is directed to a boiler 10 in the form of a once-through steam generator.
  • the boiler 10 is designed to produce superheated steam.
  • the boiler 10 has a combustion zone 13 comprising a central combustion chamber 11.
  • a passage 15 communicates with, and spirals outwardly from, the combustion chamber 1 1 to an exhaust manifold 17.
  • the passage 15 thus provides a flow path for combustion gases generated by a combustion process in the combustion chamber 11.
  • the combustion process may also extend from the combustion chamber 11 into and along the adjacent end section of the passage 15.
  • the boiler 10 also comprises a further passage 19 spiralling inwardly from a feed water inlet manifold 21 to a steam manifold 23.
  • the steam manifold 23 is located adjacent the combustion zone 13.
  • the passage 19 thus provides a flow path for the feed water and steam generated therefrom, as will be explained later.
  • the two passages 15, 19 are defined between two membranes 25, 27 arranged in a spiral formation, as shown in the drawings.
  • Each membrane 25, 27 comprises a sheet of metal suitably selected for the steam duty cycle, such as for example copper as it has good heat resistance and thermal conductivity.
  • a first spacer means 31 is accommodated in the passage 19 between the two membranes 25, 27.
  • a second spacer means 33 is accommodated in the passage 15 between the two membranes 25, 27.
  • the first spacer means 31 comprises a mesh structure formed of suitable material, woven stainless steel mesh being particularly suitable. With the mesh structure, interstices through which feedwater and steam generated therefrom can pass are defined between the interlaced threads of the mesh and the membranes 25, 27.
  • the second spacer means 33 is also formed of a mesh structure. Again, woven stainless steel mesh is particularly suitable. Interstices through which combustion gases can pass are defined between the interlaced threads of the mesh and the membranes 25, 27.
  • the boiler 10 is assembled by positioning the two membranes 25, 27 in face-to-face relationship one above the other, with the first spacer means 31 therebetween to form a space 35 between the membranes.
  • the second spacer means 33 is then positioned on the upper membrane 27.
  • an assembly 34 comprising the two membranes 25, 27 and the two spacers 31 , 33, as shown in Figure 6.
  • the steam manifold 23 is then bonded to one end of the two membranes 25, 27 such that the manifold communicates with the space 35 defined therebetween.
  • the manifold 23 comprises a tubular element 37 having an inlet in the side wall thereof defined by a plurality of axially spaced inlet ports 39.
  • the tubular element 37 is brazed to the sheets 25, 27 such that the ports 39 communicate with the space 35.
  • the longitudinal edges of the membranes 25, 27 are also bonded together, such as by brazing, so as to seal the sides of the space 35.
  • the assembly of the membranes 25, 27 and spacer means 31 , 33 is then rolled into a spiral scroll from the end thereof at which the steam manifold 23 is located.
  • a further space 41 is formed between the membranes 25, 27 by virtue of the second spacer means 33.
  • the space 41 provides the gas flow passage 15, with the space 35 providing the water flow passage 19. With this arrangement, the spaces 35, 41 are separated by a common wall which in some cases is membrane 25 and in other cases is membrane 27.
  • the bonding process can be performed during the rolling stage if so desired.
  • a central space 36 is established in the rolled assembly 34 to provide the combustion zone 13.
  • the exhaust manifold 17 is fitted in position upon completion of the rolling action.
  • the exhaust manifold 17 comprises a tubular element 43 having apertures in the side wall thereof communicating with the space 41 so as to receive the combustion gases exiting from the gas flow passage 15.
  • the longitudinal sides of the space 41 are closed so as to seal the sides of the gas flow passage 15. This sealing action may be achieved in any appropriate way, such as by crimping the longitudinal sides thereof together.
  • the retaining means 46 such as straps, is provided for retaining the assembly 34 in the rolled condition.
  • the assembly 34 can be surrounded by insulating material 47 and housed in a casing 49.
  • a fuel/air burner 51 is located adjacent one end of the central space 36 defining the combustion zone 13.
  • a wall structure 52 closes that end of the combustion zoned.
  • the other end of the central space 36 is closed by a wall structure 53 incorporating a heat exchanger 55 by means of which feed water can be pre- heated prior to delivery to the feed water inlet manifold 21.
  • the spaces 35, 41 are separated by a common wall defined by the membranes 25, 27. Additionally, the spaces 35, 41 are of a generally rectangular configuration having a cross-section in which the dimension thereof transverse to the common wall is significantly smaller than the dimension along the common wall.
  • the boiler 10 is used to generate superheated steam.
  • Fuel and air delivered to the combustion chamber 11 is ignited at the burner 51 to produce combustion gases which spiral outwardly from the combustion chamber along the passage 15 to the exhaust manifold 17.
  • the spacer means 33 in the passage 15 functions as a turbulator to create turbulence in the combustion gas flow, enhancing the combustion process as well as heat transfer.
  • the feed water is delivered under pressure to the feed water inlet manifold 21 after undergoing a pre-heating stage at the heat exchanger 55 located at one end of the combustion zone 13.
  • the pre-heated feed water is delivered to the passage 19 via the inlet manifold 21 and spirals inwardly towards the steam manifold 23.
  • the mesh spacer means 31 in the passage 19 functions as a turbulator to create turbulence in the feed water flow, enhancing heat transfer thereto.
  • the feed water is progressively heated and the combustion gases are progressively cool, and almost all of the heat energy from the combustion gases is absorbed by the feed water. Because the feed water is in a sheet form owing to the cross-sectional configuration of the passage 19, it is exposed to a relatively large surface area from which it can absorb heat. Additionally, because of the spacer means 31 in the passage 19, the actual quantity of water is relatively small and so production of superheated steam is promoted.
  • the steam enters the steam manifold 23 where it is exposed to further heat owing to the proximity of the steam manifold 23 in relation to the combustion zone 13. The steam can then be delivered from the steam manifold 23 to any desired location.
  • Water may be injected into the combustion zone 13 for the purpose of reducing NO x pollutants.
  • the steam manifold may surround the combustion zone 13 so as to have the effect of a cooling jacket for the combustion zone.
  • the present embodiment provides a simple yet highly effective boiler.
  • the spiral formation of the membranes 25, 27 with spacer means 31 , 33 therebetween provide a self-supporting structure which can resist normal pressures and thermal loads to which it is exposed during operation of the boiler.
  • combustion chamber 11 is centrally located within the assembly 34, a significant part of heat generated in the combustion chamber can be transferred to the feedwater to generate steam.
  • the boiler 10 is lighter in weight and of a smaller size than a comparable boiler of conventional design. Consequently, the boiler is particularly suitable where mobility is a consideration, such as in vehicles including watercraft.
  • the invention may have various applications other than boilers, such as in heat exchangers including heat extractors.
  • the invention may, for example, be applied as a device functioning as a silencer and heat extractor for an internal combustion engine, wherein heat is extracted from the exhaust combustion gases of the engine for use in operating ancillary equipment such as an airconditioning system and wherein the spiralling path followed by the exhaust combustion gases provides a silencing function.

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

Abstract

L'invention concerne un échangeur thermique comprenant une première trajectoire fluidique (15) et une seconde trajectoire fluidique (19), les deux trajectoires fluidiques (15, 19) étant adjacentes l'une par rapport à l'autre et en spirale. Chaque trajectoire fluidique (15, 19) comprend une entrée et une sortie, la trajectoire de fluidique s'étendant en spirale entre l'entrée et la sortie. Les trajectoires fluidiques (15, 19) sont séparées par une paroi commune et présentent une forme transversale, leur dimension transversale par rapport à la paroi commune étant sensiblement inférieure à leur dimension le long de la paroi commune. L'échangeur thermique peut être incorporé dans une chaudière (10) ou autre dispositif de chauffage. La chaudière (10) comprend également une chambre à combustion (11) entourée par les trajectoires fluidiques en spirale (15, 19). La première trajectoire (15) est en communication par son extrémité intérieure radiale avec la chambre à combustion (11), générant ainsi un passage pour les gaz à combustion chauds de la chambre à combustion . La seconde trajectoire (19) génère un passage pour l'eau d'alimentation qui est chauffée par transfert hermique des gaz de combustion chauds dans la première trajectoire (15).
PCT/AU2002/000107 2001-02-05 2002-02-05 Echangeur thermique a flux en spirale WO2002063231A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR2868 2001-02-05
AUPR2868A AUPR286801A0 (en) 2001-02-05 2001-02-05 Heat exchanger

Publications (1)

Publication Number Publication Date
WO2002063231A1 true WO2002063231A1 (fr) 2002-08-15

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AU (1) AUPR286801A0 (fr)
WO (1) WO2002063231A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004046587A1 (de) * 2004-09-23 2006-04-06 Josef Bachmaier Wärmetauscher
WO2006100072A1 (fr) * 2005-03-24 2006-09-28 Behr Gmbh & Co. Kg Echangeur thermique pour gaz d'echappement, notamment refroidisseur de gaz d'echappement pour le recyclage des gaz d'echappement dans les vehicules a moteur
EP1770344A2 (fr) 2005-09-30 2007-04-04 Pratt & Whitney Canada Corp. Echangeur de chaleur à noyau de mousse et méthode
US20120261106A1 (en) * 2011-04-13 2012-10-18 Altex Technologies Corporation Non-Isotropic Structures for Heat Exchangers and Reactors
CN103398606A (zh) * 2013-08-23 2013-11-20 夏品荷 单通道螺旋板式热交换构件及其制造方法
FR3020868A1 (fr) * 2014-05-07 2015-11-13 Faurecia Sys Echappement Echangeur de chaleur en spirale et procede de fabrication correspondant
US9327214B2 (en) 2012-02-13 2016-05-03 Specialized Desanders Inc. Desanding apparatus and a method of using same
CN105890162A (zh) * 2016-05-04 2016-08-24 哈尔滨理工大学 一种农用小型生物质热风炉
CN106288888A (zh) * 2016-08-02 2017-01-04 中国石油大学(华东) 一种螺旋板翅式换热器及其制作方法
US9861921B2 (en) 2013-12-16 2018-01-09 Specialized Desanders Inc. Desanding apparatus and a method of using the same
US9909405B2 (en) 2012-02-13 2018-03-06 Specialized Desanders Inc. Desanding apparatus and a method of using same
US9938812B2 (en) 2012-02-13 2018-04-10 Specialized Desanders Inc. Desanding apparatus and a method of using same
EP1899642B1 (fr) * 2005-06-21 2018-04-25 Giacomini S.p.A. Procédé de brulage d'hydrogène et brûleur utilisé dans ce procédé
IT202000022384A1 (it) * 2020-09-23 2022-03-23 Steel Tech Srl Scambiatore per immersione a spirale

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004046587B4 (de) * 2004-09-23 2007-02-22 Josef Bachmaier Wärmetauscher
DE102004046587A1 (de) * 2004-09-23 2006-04-06 Josef Bachmaier Wärmetauscher
US7614389B2 (en) 2005-03-24 2009-11-10 Behr Gmbh & Co. Kg Exhaust gas heat exchanger, in particular an exhaust gas cooler for exhaust gas recirculation in a motor vehicle
WO2006100072A1 (fr) * 2005-03-24 2006-09-28 Behr Gmbh & Co. Kg Echangeur thermique pour gaz d'echappement, notamment refroidisseur de gaz d'echappement pour le recyclage des gaz d'echappement dans les vehicules a moteur
EP1899642B1 (fr) * 2005-06-21 2018-04-25 Giacomini S.p.A. Procédé de brulage d'hydrogène et brûleur utilisé dans ce procédé
EP1770344A2 (fr) 2005-09-30 2007-04-04 Pratt & Whitney Canada Corp. Echangeur de chaleur à noyau de mousse et méthode
US7467467B2 (en) 2005-09-30 2008-12-23 Pratt & Whitney Canada Corp. Method for manufacturing a foam core heat exchanger
EP1770344A3 (fr) * 2005-09-30 2010-04-14 Pratt & Whitney Canada Corp. Echangeur de chaleur à noyau de mousse et méthode
WO2007036042A1 (fr) * 2005-09-30 2007-04-05 Pratt & Whitney Canada Corp. Echangeur de chaleur a coeur de materiau expanse
US20120261106A1 (en) * 2011-04-13 2012-10-18 Altex Technologies Corporation Non-Isotropic Structures for Heat Exchangers and Reactors
WO2012141793A1 (fr) * 2011-04-13 2012-10-18 Altex Technologies Corporation Structures non isotropes destinées à des échangeurs de chaleur et à des réacteurs
US10119771B2 (en) 2011-04-13 2018-11-06 Altex Technologies Corporation Non-isotropic structures for heat exchangers and reactors
US9327214B2 (en) 2012-02-13 2016-05-03 Specialized Desanders Inc. Desanding apparatus and a method of using same
US9909405B2 (en) 2012-02-13 2018-03-06 Specialized Desanders Inc. Desanding apparatus and a method of using same
US9938812B2 (en) 2012-02-13 2018-04-10 Specialized Desanders Inc. Desanding apparatus and a method of using same
CN103398606A (zh) * 2013-08-23 2013-11-20 夏品荷 单通道螺旋板式热交换构件及其制造方法
US9861921B2 (en) 2013-12-16 2018-01-09 Specialized Desanders Inc. Desanding apparatus and a method of using the same
FR3020868A1 (fr) * 2014-05-07 2015-11-13 Faurecia Sys Echappement Echangeur de chaleur en spirale et procede de fabrication correspondant
CN105890162A (zh) * 2016-05-04 2016-08-24 哈尔滨理工大学 一种农用小型生物质热风炉
CN106288888A (zh) * 2016-08-02 2017-01-04 中国石油大学(华东) 一种螺旋板翅式换热器及其制作方法
IT202000022384A1 (it) * 2020-09-23 2022-03-23 Steel Tech Srl Scambiatore per immersione a spirale

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