EP2999936A1 - Échangeur de chaleur, procédé servant à réaliser la maintenance d'un échangeur de chaleur ou à fabriquer et à faire fonctionner un échangeur de chaleur, centrale électrique et procédé servant à produire de l'énergie électrique - Google Patents

Échangeur de chaleur, procédé servant à réaliser la maintenance d'un échangeur de chaleur ou à fabriquer et à faire fonctionner un échangeur de chaleur, centrale électrique et procédé servant à produire de l'énergie électrique

Info

Publication number
EP2999936A1
EP2999936A1 EP14725369.4A EP14725369A EP2999936A1 EP 2999936 A1 EP2999936 A1 EP 2999936A1 EP 14725369 A EP14725369 A EP 14725369A EP 2999936 A1 EP2999936 A1 EP 2999936A1
Authority
EP
European Patent Office
Prior art keywords
tube bundle
temperature range
heat exchanger
temperature
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14725369.4A
Other languages
German (de)
English (en)
Inventor
Christoph Seeholzer
Andrew Lochbrunner
Hubert KÖPF
Konrad Braun
Heiko Schuster
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 EP14725369.4A priority Critical patent/EP2999936A1/fr
Publication of EP2999936A1 publication Critical patent/EP2999936A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F28D7/02—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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • F28D7/0091—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium the supplementary medium flowing in series through the units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • 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
    • 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
    • F28D7/06—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 having a single U-bend
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals

Definitions

  • Heat exchanger method for the maintenance or production and operation of a heat exchanger, power plant and method for generating electrical energy
  • the invention relates to a heat exchanger, a method for maintenance and a method for producing a heat exchanger, a method for operating a heat exchanger, a power plant, in particular a solar thermal power plant, and a method for generating electrical energy.
  • the heat exchanger according to the invention serves for the indirect heat exchange between a first heat carrier and a second heat carrier.
  • the respective heat transfer medium can be a liquid, gaseous or supercritical medium which absorbs an amount of heat inside or outside a power plant process and also releases it again inside or outside a power plant process.
  • the heat transfer medium can also serve as a working medium in the
  • Power plant process to absorb thermal energy to supply it to a device in which the thermal energy is converted into mechanical work.
  • WO 201 1/077248 A2 discloses a device for generating electrical energy using solar energy. This is heat from a first
  • a working medium such as water or ammonia generated steam, with which a steam turbine is driven, which is mechanically connected to a power generator for generating the electric current.
  • the working medium can be supplied by means of solar radiation or indirectly via a heat transfer medium, such as thermal oil or molten salt, heat.
  • This heat carrier can in turn also by means of Solar energy has been heated.
  • a directly or indirectly heated heat carrier can serve as a buffer in times when more electrical energy is required than can be provided by conversion of solar energy.
  • molten salts typically eutectic mixtures of KNO3 and NaNOß, can be used.
  • Salt melts can be heated as described above in a direct manner or via another heat transfer medium, such as thermal oil, to temperatures of 250 ° C to 400 ° C and 600 ° C and stored in flat-bottom tanks. Alternatively, or after storage, the heat of the molten salt can be discharged directly or indirectly to a working medium.
  • another heat transfer medium such as thermal oil
  • Tube bundle heat exchanger used. To heat a molten salt as a heat carrier for solar applications, the tube bundle of such
  • FR 2501832 A1 discloses a heat exchanger for indirect
  • This heat exchanger comprises a pipe system for receiving a heat carrier, which is divided into a first tube bundle and a second tube bundle.
  • the second tube bundle is designed interchangeable as well
  • the second tube bundle is designed as a U-tube bundle and / or with a smaller volume than the first tube bundle.
  • a tubular heat exchanger with U-tube bundle is also the CH 271219 A removable. Furthermore, a conventional shell-and-tube heat exchanger is shown in FIG. This tube bundle heat exchanger is referred to below as a heat exchanger 1.
  • the heat exchanger 1 comprises a jacket 10, which encloses a jacket space 11.
  • a pipe system 30 is arranged, wherein the individual tubes of the pipe system 30 are arranged in a bundle, which Helix or
  • Inlet nozzle 12 into the shell space 1 1 and passes through the core tube 20 and / or through the shell space 11 to the outlet 13, from which it is forwarded.
  • a second heat transfer medium 3 flows through a first inlet device 33 into the pipe system 30, where it is distributed in the individual pipes and led out through the first outlet device 34. Due to the relatively large surface area of the pipe system 30 in the jacket space 1, heat is transferred efficiently between the first heat carrier 2 and the second heat carrier 3. Heat from the first heat carrier 2 to the second heat carrier 3 or heat from the second heat carrier 3 to the first heat carrier 2 can occur here be transmitted.
  • Inlet 33 a temperature of 620 ° C and at the outlet of the first
  • Outlet 34 a temperature of 290 ° C. It can be seen that a large amount of heat has been transferred from the steam as the second heat carrier 3 to the molten salt as the first heat carrier 2.
  • stainless steels are often used for the pipe system 30 for this purpose. Such stainless steels must be used at a thermal load of more than 593 ° C (according to ASME standard of the American Society of Mechanical Engineers) or at a thermal load of 585 ° C (according to AD-2000 leaflets, the calculation or the evaluation method pretend; or according to VDTÜV material data sheets that specify the temperatures and the respective creep strengths related to the load time) to creep resistance. In order not to exceed the permissible creep, such components must often be examined or replaced after a certain load change number and / or life.
  • the creep deformation depends on the respective homologous temperature, since high-melting materials have a high binding energy.
  • the homologous temperature is calculated from the melting temperature of the respective material, taking into account certain factors. For iron, the homologous temperature is z. B. about 450 ° C. This means that thermally highly stressed components of a
  • Heat exchanger according to their creep defined by their respective creep resistance, must be designed. This requires the use of relatively expensive materials in the heat exchanger. However, it must be assumed that despite appropriate design of highly thermally stressed components of a
  • Heat exchanger in particular a tube bundle, nevertheless in a relatively short time
  • Time intervals have to be maintained and / or replaced. Especially with very large and efficient heat exchangers such maintenance or
  • the present invention is based on the object, a heat exchanger and a method for manufacturing or maintenance and for operating a
  • Heat exchanger to provide, with which simple constructive way and with low manufacturing and / or maintenance costs cost
  • a heat exchanger for indirect heat exchange between a first heat carrier and a second heat carrier comprising a pipe system for receiving a heat carrier, wherein the pipe system is subdivided or subdividable into at least a first tube bundle and a second, exchangeable tube bundle. It is envisaged that the first tube bundle for operation over a first period of time in a first
  • Temperature range and the second tube bundle is designed for operation over a second period of time in a second temperature range, wherein the temperatures of the second temperature range are higher than the temperatures of the first
  • Temperature range and the second period of time is shorter than the first period.
  • the first temperature range is limited by a maximum temperature which is lower than the temperature of the material of the first tube bundle above which creep of the material of the first tube bundle begins at the given mechanical load of the first tube bundle.
  • the second temperature range is limited by a maximum temperature which is equal to or higher than the temperature of the material of the second tube bundle, above which creep the material of the second tube bundle at the given mechanical load of the second tube bundle.
  • the first heat carrier may be in particular a molten salt or water, steam, ammonia, supercritical carbon dioxide or thermal oil while flowing through the jacket space of the heat exchanger.
  • Heat transfer medium may in particular be steam or hot water.
  • Heat transfer medium flows through the pipe system.
  • the two tube bundles with one or more releasable mechanical connecting elements in a fluidic interface, such. As a flange, connected together.
  • the second tube bundle is designed such that it can be removed from the first tube bundle with plannable manual or automatically performed operations or movements and can therefore be replaced by another tube bundle.
  • the second tube bundle is designed for operating temperatures which are higher than the operating temperatures for which the first tube bundle is designed. In this case, even slight overlaps of the respective, the tube bundles associated temperature ranges may be possible, where it is only important that the
  • Average temperature of the second temperature range is higher than that
  • the respective tube bundle is designed such that within the respective planned
  • both tube bundles are made of substantially the same material and / or with the same wall thickness of the respective tubes or the same number of tubes. Due to the higher thermal load of the second tube bundle, this has a reduced life compared to the first tube bundle, since in the second tube bundle the allowable creeping stress is reached earlier than in the first tube bundle.
  • the temperature of the material above which creep of the material of the first tube bundle begins at the given mechanical stress can also be referred to as a homologous temperature or as a minimum creep temperature.
  • the determination of the respective permissible creep or creep strength is known to the person skilled in the art.
  • the permissible creep resistance can be e.g. according to ASME in accordance with ASME Section II / D and for AD materials in accordance with the VDTÜV material data sheets.
  • Fixing and vibration tendency and resulting residual stresses these tube bundles are designed such that a respective tube bundle in the associated temperature range over its associated time works, namely the first tube bundle in a first, low temperature range over a longer period of time and the second tube bundle in a second , higher
  • the first tube bundle and / or the second tube bundle is made of stainless steel, wherein in particular the material TP304 according to ASME or 1.4301 according to AD-Merkblatt / DIN is advantageously applicable.
  • TP304 according to ASME or 1.4301 according to AD-Merkblatt / DIN is advantageously applicable.
  • AD-Merkblatt / DIN is advantageously applicable.
  • the material Inconel 625 and for carbon steels the material P91 for sheets and T91 for pipes can be used.
  • carbon steels can also be used to realize cost-effective tube bundles.
  • the heat exchanger may be a wound heat exchanger, as it is for. B. is used in various large-scale processes such as methanol scrubbing, natural gas liquefaction or ethylene production.
  • a coiled heat exchanger comprises a plurality of tubes wound in multiple layers around a central core tube.
  • the tubes and the core tube are surrounded by a jacket, which thus limits the shell space in which the tube bundle and the core tube are located.
  • the tubes are brought together in perforated trays at the ends of the heat exchanger in one or more bundles and connected to inlets and outlets in the jacket of the heat exchanger.
  • the pipes of the Heat exchanger can be acted upon with one or more separate heat transfer streams.
  • the heat transfer medium flowing through the jacket tube exchanges heat with the heat transfer medium in the pipe system.
  • a coiled heat exchanger can be constructed both shell side and tube side self-draining.
  • certain heat transfer medium such as. B. molten salts, in a simplified manner and remove. This also ensures a self-emptying, since a solidification of the molten salt in
  • Heat exchanger (below the melting temperature) can lead to the destruction of the heat exchanger.
  • the first temperature range used to design the tube bundles is in
  • the second temperature range is limited by a minimum temperature of 560 ° C to 600 ° C.
  • a maximum temperature of the first temperature range between 570 ° C and 590 ° C, in particular 580 ° C
  • a minimum temperature of the second temperature range between 570 ° C and 590 ° C, in particular 580 ° C has proven.
  • Temperature range is limited by a minimum temperature of 270 ° C to 310 ° C and the second temperature range by a maximum temperature of 600 ° C to 640 ° C.
  • the first temperature range is through a
  • the first temperature range should be limited by a maximum temperature of 400 ° C to 450 ° C, and the second
  • Temperature range may be limited by a minimum temperature of 400 ° C to 450 ° C.
  • the temperature ranges mentioned serve for the concrete design of the tube bundles and thus for determining the concrete technical or structural features.
  • the second tube bundle has a smaller volume than the first tube bundle. This has the advantage that the second tube bundle is easily and quickly interchangeable with a low cost of materials.
  • the second tube bundle is a U-tube bundle.
  • Such a tube bundle has the advantage of easy assembly and disassembly.
  • the entire pipe system is integrated in the shell space of the heat exchanger, wherein the second tube bundle is connected to a shell segment and this shell segment is also exchanged with exchange of the second tube bundle.
  • the jacket has a releasable opening, through which the second
  • Tube bundle can be replaced.
  • the pipe system can be configured such that the second
  • Tube bundle is fluidly separated from the first tube bundle.
  • first tube bundle and the second tube bundle are fluidically coupled with each other.
  • a device for separating the flow path between the first and the second tube bundle is provided in a favorable embodiment.
  • a further aspect of the present invention is a method for the maintenance of a heat exchanger according to the invention, in which a functionally limited second tube bundle is exchanged for a functional second tube bundle.
  • a functionally restricted second tube bundle can be a tube bundle which has already been used and which has been worn mainly because of the high thermal load, in which the danger of exceeding the permissible creeping stress under normal operating conditions of the heat exchanger is present.
  • Such a second tube bundle is exchanged for a new or new or at least functional tube bundle. This has the advantage of being heat-related
  • Tube bundle and the second tube bundle is separated.
  • a method for producing a heat exchanger according to the invention in which a pipe system is mounted for receiving a heat carrier, wherein as components of the pipe system a first tube bundle and a second, exchangeable tube bundle are mounted, wherein the first tube bundle for the operation over a first period of time in a first period
  • Temperature range and the second tube bundle is designed for operation over a second period of time in a second temperature range, and the temperatures of the second temperature range are higher than the temperatures of the first
  • Temperature range and the second period of time is shorter than the first period.
  • the first temperature range is limited by a maximum temperature which is lower than the temperature of the material of the first tube bundle, above that at the given mechanical load of the first tube bundle
  • Creep of the material of the first tube bundle begins. Alternatively or
  • the second temperature range is limited by a maximum temperature which is equal to or higher than the temperature of the material of the second tube bundle, above which creep of the material of the second tube bundle begins at the given mechanical load of the second tube bundle.
  • the first temperature range is preferably limited by a maximum temperature of 550 ° C to 600 ° C and the second temperature range preferably by a minimum temperature of 560 ° C to 600 ° C, and the first temperature range by a minimum temperature of 270 ° C to 310 ° C and the second
  • Another aspect of the present invention is a method for operating a heat exchanger according to the invention for the indirect heat exchange between a first heat transfer medium and a second heat transfer medium, which is a pipe system for receiving a heat carrier, which at least in a first tube bundle and a second, exchangeable tube bundle is subdivided or subdivided wherein during operation of the heat exchanger, the first tube bundle is operated for a first time period in a first temperature range and the second tube bundle for a second time period in a second temperature range, wherein the temperatures of the second temperature range are higher than the temperatures of the first
  • Temperature range and the second period of time is shorter than the first period.
  • the first tube bundle is operated in a first temperature range, which is limited by a maximum temperature which is lower than the temperature of the material of the first tube bundle, above which creep of the material of the first at the given mechanical load of the first tube bundle Tube bundle sets, and the second tube bundle is operated in a second temperature range, which is limited by a maximum temperature which is equal to or higher than the temperature of the material of the second tube bundle above which creep at the given mechanical load of the second tube bundle Material of the second tube bundle begins.
  • the first tube bundle can be operated in a first temperature range, which is limited by a minimum temperature of 270 ° C to 310 ° C and a maximum temperature of 550 ° C and 600 ° C
  • the second tube bundle can be operated in a second temperature range, the one by one
  • Minimum temperature of 560 ° C to 600 ° C and a maximum temperature of 600 ° C to 640 ° C is limited.
  • the first temperature range is limited by a minimum temperature between 280 ° C to 300 ° C, especially 290 ° C, and a maximum temperature between 570 ° C and 590 ° C, in particular 580 ° C.
  • the second temperature range is preferably limited by a minimum temperature between 570 ° C and 590 ° C, in particular 580 ° C, and by a maximum temperature of 610 ° C to 630 ° C, in particular 620 ° C.
  • the first tube bundle is operated with a first time duration and the second tube bundle is operated with a second time duration. Due to the different thermal load of the individual Tube bundle is the first time period longer than the second time period, so that the first tube bundle is operated for a longer time than the second tube bundle.
  • Heat exchanger is stopped and the second tube bundle is replaced.
  • the invention is also directed to a power plant, in particular to a
  • Solar thermal power plant which serves to generate electrical energy and comprises a heat exchanger according to the invention for the indirect heat exchange between a first heat transfer medium and a second heat transfer medium.
  • a heat exchanger according to the invention for the indirect heat exchange between a first heat transfer medium and a second heat transfer medium.
  • the heat exchanger according to the invention is advantageously applicable in a solar thermal power plant, since due to the
  • Heat exchanger is ensured and therefore a wear-related failure of the power plant can be counteracted.
  • the heat transfer media used in this solar thermal power plant may be the fluids described at the outset to explain the state of the art.
  • the present invention is supplemented by a method for generating electrical energy, in which the inventive method for operating a
  • Heat exchanger is carried out, being transferred from a first heat transfer medium to a second heat transfer heat and the heat of the second
  • Heat transfer medium is at least partially converted into electrical energy. This conversion can in particular by using the heat to generate steam, use of its mechanical energy and conversion of mechanical energy into electrical energy, eg. B. in a turbine, done. This means that here the heat of the second heat carrier is used indirectly to generate electrical energy.
  • this method can be provided that the heat of the second heat exchanger is transferred to a further heat exchanger, and the heat is at least partially converted into electrical energy.
  • this further heat carrier in turn be the first heat carrier, so that the second heat carrier only serves as a memory.
  • Heat transfer medium preferably water or steam
  • the second heat carrier is a molten salt
  • Fig. 2 shows a heat exchanger according to the invention in sectional view.
  • the conventional heat exchanger as shown in Fig. 1, has already been discussed to explain the prior art.
  • FIG. 2 An inventive heat exchanger 1 is shown in Fig. 2.
  • This heat exchanger 1 also comprises a jacket 10, which encloses a jacket space 11.
  • the core tube 20 is arranged to the helix or Screw-shaped, the pipe system 30 extends.
  • the pipe system 30 is divided into a first tube bundle 31 at the lower side of the heat exchanger 1 and a second tube bundle 32 at the upper side of the heat exchanger 1.
  • an inlet connection 12 for an inflowing volume flow of the first heat transfer medium 2 is arranged on the underside.
  • an outlet 13 is arranged at the top of the shell. After entering through the inlet port 12 flows through the first heat carrier 2, the z.
  • a molten salt or water or steam or ammonia supercritical carbon dioxide or thermal oil can be, the shell space 11 and / or the core tube 20 and flows out of the outlet 13 out.
  • the second heat carrier 3 which z. B. steam or hot water, flows into the first tube bundle 31 through a first inlet means 33 and through a first outlet means 34 from the first tube bundle 31 out.
  • the second heat carrier 3 flows into the second tube bundle 32 through a second
  • the temperature of the second heat carrier 3 when entering the first tube bundle 31 at the first inlet device 33 is about 580 ° C.
  • At the first outlet 34 of the first tube bundle 31 its temperature is about 290 ° C.
  • Tube bundle 32 at the second inlet means 35 is about 620 ° C, and at the second outlet means 36 of the second tube bundle 32 its temperature is about 580 ° C.
  • the first tube bundle 31 and the second tube bundle 32 are fluidically decoupled from each other, so that no flow path between the two
  • Tube bundles 31, 32 must be severed.
  • the second tube bundle can be removed from the first tube bundle 31 in a simpler, faster and cost-effective manner, so that maintenance-related downtime of the heat exchanger 1 can be minimized.
  • the second tube bundle is for operation in the given higher temperature range, but due to the higher thermal load and the associated earlier achievement of the permissible
  • Heat exchanger 1 first heat transfer medium 2 second heat carrier. 3
  • Pipe system 30 first tube bundle 31 second tube bundle 32 first inlet device 33 first outlet 34 second inlet 35 second outlet 36th

Abstract

L'invention concerne un échangeur de chaleur (1), un procédé servant à réaliser la maintenance d'un échangeur de chaleur et un procédé servant à fabriquer et à faire fonctionner un échangeur de chaleur. L'invention concerne également une centrale électrique, en particulier une centrale thermique solaire, et un procédé servant à produire de l'énergie électrique. Selon l'invention, l'échangeur de chaleur (1) comprend un système de tuyauterie (30) servant à recevoir un échangeur de chaleur et divisé ou pouvant l'être au moins en un premier faisceau de tuyaux (31) et un deuxième faisceau de tuyaux (32) remplaçable. Le premier faisceau de tuyaux (31) est mis au point pour le mode de fonctionnement au-delà d'une première durée dans une première plage de températures et le deuxième faisceau de tuyaux (32) est mis au point pour le mode de fonctionnement au-delà d'une deuxième durée dans une deuxième plage de températures. Les températures de la deuxième plage de températures sont plus élevées que les températures de la première plage de températures, et la deuxième durée est plus courte que la première durée. Selon l'invention, la première plage de températures est limitée par une température maximale qui est inférieure à la température du matériau du premier faisceau de tuyaux (31), au-delà de laquelle le matériau du premier faisceau de tuyaux (31) subit un fluage en présence de la charge mécanique donnée supportée par le premier faisceau de tuyaux (31), et/ou la deuxième plage de températures est limitée par une température maximale, qui est égale ou supérieure à la température du matériau du deuxième faisceau de tuyaux (32), au-delà de laquelle le matériau du deuxième faisceau de tuyaux (32) subit un fluage en présence de la charge mécanique donnée supportée par le deuxième faisceau de tuyaux (32).
EP14725369.4A 2013-05-21 2014-05-20 Échangeur de chaleur, procédé servant à réaliser la maintenance d'un échangeur de chaleur ou à fabriquer et à faire fonctionner un échangeur de chaleur, centrale électrique et procédé servant à produire de l'énergie électrique Withdrawn EP2999936A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14725369.4A EP2999936A1 (fr) 2013-05-21 2014-05-20 Échangeur de chaleur, procédé servant à réaliser la maintenance d'un échangeur de chaleur ou à fabriquer et à faire fonctionner un échangeur de chaleur, centrale électrique et procédé servant à produire de l'énergie électrique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13002660 2013-05-21
PCT/EP2014/001362 WO2014187560A1 (fr) 2013-05-21 2014-05-20 Échangeur de chaleur, procédé servant à réaliser la maintenance d'un échangeur de chaleur ou à fabriquer et à faire fonctionner un échangeur de chaleur, centrale électrique et procédé servant à produire de l'énergie électrique
EP14725369.4A EP2999936A1 (fr) 2013-05-21 2014-05-20 Échangeur de chaleur, procédé servant à réaliser la maintenance d'un échangeur de chaleur ou à fabriquer et à faire fonctionner un échangeur de chaleur, centrale électrique et procédé servant à produire de l'énergie électrique

Publications (1)

Publication Number Publication Date
EP2999936A1 true EP2999936A1 (fr) 2016-03-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14725369.4A Withdrawn EP2999936A1 (fr) 2013-05-21 2014-05-20 Échangeur de chaleur, procédé servant à réaliser la maintenance d'un échangeur de chaleur ou à fabriquer et à faire fonctionner un échangeur de chaleur, centrale électrique et procédé servant à produire de l'énergie électrique

Country Status (7)

Country Link
US (1) US20160116219A1 (fr)
EP (1) EP2999936A1 (fr)
CN (1) CN105324622A (fr)
AU (1) AU2014270786A1 (fr)
CL (1) CL2015003412A1 (fr)
MA (1) MA38584B1 (fr)
WO (1) WO2014187560A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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EP3141815B1 (fr) * 2015-09-08 2019-03-13 Black & Decker, Inc. Filtre et procédé de fabrication
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MA38584B1 (fr) 2018-12-31
AU2014270786A1 (en) 2015-11-12
CL2015003412A1 (es) 2016-06-10
US20160116219A1 (en) 2016-04-28
WO2014187560A1 (fr) 2014-11-27
MA38584A1 (fr) 2017-03-31
CN105324622A (zh) 2016-02-10

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