[go: up one dir, main page]

WO2025207004A1 - Dispositif de chauffage de fluide de module de guidage de fluide et appareil de chauffage de fluide - Google Patents

Dispositif de chauffage de fluide de module de guidage de fluide et appareil de chauffage de fluide

Info

Publication number
WO2025207004A1
WO2025207004A1 PCT/SE2025/050262 SE2025050262W WO2025207004A1 WO 2025207004 A1 WO2025207004 A1 WO 2025207004A1 SE 2025050262 W SE2025050262 W SE 2025050262W WO 2025207004 A1 WO2025207004 A1 WO 2025207004A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubes
fluid
guiding module
heater
tube
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.)
Pending
Application number
PCT/SE2025/050262
Other languages
English (en)
Inventor
Thomas Lewin
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.)
Kanthal AB
Original Assignee
Kanthal AB
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 Kanthal AB filed Critical Kanthal AB
Publication of WO2025207004A1 publication Critical patent/WO2025207004A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material

Definitions

  • the invention relates to a fluid guiding module for a fluid heater, to a fluid heater comprising a fluid guiding module, and to a fluid heating apparatus.
  • a common solution to provide a large heat transfer surface is to use two concentrical tubes, the inner tube being heated and feeding the gas in the gap in between the two tubes. Since long tubes with a small gap between them are required for heating gas to high temperatures, it becomes difficult to provide tubes straight enough to be arranged concentrically with each other. Moreover, if a concentrical arrangement is possible it might still be difficult or impossible to withdraw the inner tube from the outer tube once they have been exposed to high temperature. This so, as a consequence of distortion of the tubes due to the high temperature exposure.
  • a heat exchanger comprising a container and a tubular heat exchanger element configured for a fluid to be heated to flow past its outer surface.
  • the tubular heat exchanger element is at least partially surrounded by a concentric tube, the fluid flowing in the annular gap between the tube and the element.
  • a heating wire is provided in the tubular heat exchange element.
  • US 4453496 discloses a multi-tubular once-through boiler.
  • the multi-tubular once-through boiler comprises a combustion device, a ring-shaped upper header which functions as a vapor chamber, a ring-shaped lower header which functions as a water chamber, a plurality of vertical water-tubes connecting the upper and lower headers to form a single-row ringshaped water-tube wall, a combustion chamber which is a cylindrical inner space surrounded by the water-tube wall, and a ring-shaped combustion gas passage formed between the water tube wall and an outer wall of the boiler.
  • WO 2023/183190 discloses a fluid heater configured to increase the temperature of a process fluid flowing through the fluid heater.
  • the fluid heater includes multiple tubes that route the process fluid through the fluid heater.
  • the fluid heater includes one manifold assembly at each end of the multiple tubes.
  • the multiple tubes of the fluid heater are formed from a polymer. As such the fluid heater is devised for heating fluids up to a temperature of 120 degrees Celsius in hazardous locations or up to a temperature of 180 degrees Celsius in non-hazardous locations.
  • a fluid guiding module for a fluid heater, the module comprising a number of tubes and a header forming an inlet chamber.
  • Each tube of the number of tubes extends in parallel with a longitudinal axis.
  • the tubes of the number of tubes are arranged side by side such that each tube has two adjacent tubes.
  • the header is ringshaped and arranged around an open central portion.
  • the fluid guiding module has a first end portion and a second end portion opposite to the first end portion seen along the longitudinal axis.
  • the header is arranged at the first end portion with the inlet chamber arranged in fluid communication with an inside of each tube of the number of tubes. Outlet openings of the tubes are arranged at the second end portion.
  • the number of tubes are arranged side by side such that collectively, the tubes of the number of tubes form a boundary around a central longitudinal space.
  • the open central portion of the ring-shaped header is arranged in juxtaposition and open communication with the central longitudinal space formed by the tubes of the number of tubes.
  • the outlet openings of the tubes collectively form a fluid outlet from the fluid guiding module.
  • insides of the tubes of the number of tubes are arranged in fluid communication with outsides of the tubes via the outlet openings of the tubes.
  • a fluid heater comprising a fluid guiding module according to any one of examples and/or aspects discussed herein and an electric heating element or a fuel burner positioned through the open central portion of the ringshaped header and into the central longitudinal space formed by the tubes of the number of tubes.
  • a fluid heater may comprise more than one fluid guiding module according to any one of examples and/or aspects discussed herein and one or more electric heating elements.
  • the outlet openings of the tubes of the number of tubes collectively form a fluid outlet from the fluid guiding module and the outlet openings of the tubes collectively form a fluid outlet from the fluid guiding module, and since at the second end portion, insides of the tubes of the number of tubes are arranged in fluid communication with outsides of the tubes via the outlet openings of the tubes, the end portions of the tubes at the second end portion of the fluid guiding module are unrestrictedly arranged in the fluid guiding module and the fluid heater.
  • a fluid heating apparatus comprising a housing extending along a housing axis, the fluid heating apparatus comprising at least one fluid heater according to any one of examples and/or aspects discussed herein arranged at last partially within the housing, wherein the longitudinal axis of the fluid guiding module of each of the at least one fluid heater extends in parallel with the housing axis.
  • the outlet openings of the tubes of the number of tubes collectively form a fluid outlet and the outlet openings of the tubes collectively form a fluid outlet from the fluid guiding module, and since at the second end portion, insides of the tubes of the number of tubes are arranged in fluid communication with outsides of the tubes via the outlet openings of the tubes, the end portions of the tubes at the second end portion of the fluid guiding module are unrestrictedly arranged in the fluid guiding module, the fluid heater, and the fluid heating apparatus.
  • the thermal expansion of the tubes does not lead to any substantial deformation of the tubes in a radial direction, at least not to any degree that would impede the functionality, the operation, and/or the serviceability of the fluid heating apparatus.
  • the fluid guiding module of the at least one fluid heater is arranged within the housing of the fluid heating apparatus, during operation of the fluid heating apparatus, the outlet openings of the tubes lead heated fluid into the housing. Accordingly, the housing may be provided with an outlet for heated fluid and thus, may function as a collector for the heated fluid.
  • the inventor has realised that by letting the outlet openings collectively form the fluid outlet from the fluid guiding module, i.e. by providing open tube ends in the fluid guiding module, the unavoidable natural thermal expansion of the tubes is not restrained by any outlet arrangement of the fluid guiding module.
  • the fluid guiding module accordingly, is devised for free for axial expansion.
  • the inventor has realised that by arranging the fluid guiding module in a housing of a fluid heating apparatus, the heated fluid can be admitted from the tubes of the fluid guiding module into the housing and in turn, the housing may be provided with an outlet arrangement for the heated fluid.
  • the tubes can freely expand within the housing without risking deformation in a radial direction, while the heated fluid is taken out from the housing, instead of directly from the fluid guiding module.
  • the fluid guiding module herein also referred to as the module, is configured for use as part of a fluid heater. As such, during use of the fluid heater, the fluid to be heated flows through the fluid guiding module while it is subjected to heat from e.g., an electric heating element or a fuel burner of the fluid heater arranged in the central longitudinal space of the fluid guiding module.
  • the number of tubes form, and accordingly extend along, the central longitudinal space, the number of tubes is subjected to the heat and the fluid is heated while flowing through number of tubes from the first end portion of the fluid guiding module to its second end portion.
  • each individual tube will form a gastight passage and therefore the tubes of the number of tubes do not have to be fixed or sealed in relation to each other along their lengths.
  • thermal elongation and/or any stress induced by varying temperature gradients in the individual tubes will not lead to any angular deformation of the fluid guiding module relative the longitudinal axis.
  • Natural thermal expansion is unavoidable but due to the freedom for axial expansion, the fluid guiding module is only elongated and not subjected to angular deformation.
  • the fluid to be heated may be a liquid or a gas.
  • the fluid guiding module is devised for gas which is to be heated to high temperatures, such as such as up to 1200 °C or even higher. It is at high temperatures where the resistance against deformation of the herein discussed fluid guiding module becomes most advantageous.
  • the fluid to be heated may be a gas such as air, nitrogen, hydrocarbons (e.g. methane), hydrogen, vapour, carbon oxide, carbon dioxide and helium.
  • a gas such as air, nitrogen, hydrocarbons (e.g. methane), hydrogen, vapour, carbon oxide, carbon dioxide and helium.
  • the tubes of the number of tubes forming the boundary around the central longitudinal space means that the number of tubes delimit the central longitudinal space. Two adjacent tubes of the number of tubes may abut against each other. However, the tubes of the number of tubes need not abut against each other, and specifically not along their entire lengths.
  • the tubes of the number of tubes are considered to form a boundary around the central longitudinal space. Since each tube of the number of tubes extends in parallel with the longitudinal axis and the number of tubes forms a significant part of the fluid guiding module, the longitudinal axis also forms a longitudinal axis of the fluid guiding module. Accordingly, herein, unless otherwise specified, axial, radial, and circumferential references relate to the longitudinal axis.
  • the tubes may be kept in position by one or more girdles arranged around the number of tubes.
  • Such girdles may take the form of outer ringlike members extending around the number of tubes.
  • radially supporting inner ringlike members may be arranged inside the number of tubes circumferentially along the longitudinal space.
  • Such inner and outer ringlike members may be arranged in concentrical pairs.
  • the open central portion of the ring-shaped header is arranged in juxtaposition and in open communication with the central longitudinal space formed by the tubes of the number of tubes, an electric heating element or a fuel burner which is insertable through the open central portion into the central longitudinal space to from a fluid heater of the herein discussed kind.
  • At least the number of tubes of the at least one fluid heater may be arranged within the housing of the fluid heating apparatus.
  • the herein discussed fluid heater may be utilised in any kind of fluid heating apparatus which provides for a collecting of the heated fluid from the outlet openings of the tubes of the number of tubes.
  • One or more fluid heaters may be used depending on the need.
  • the housing of the herein discussed fluid heating apparatus may be provided with an outlet for heated fluid and thus the housing may function as a collector for the heated fluid.
  • the fluid guiding module at the second end portion, insides of the tubes of the number of tubes are arranged in fluid communication with outsides of the tubes via the outlet openings of the tubes. In this manner, the outlet openings of the tubes collectively form a fluid outlet from the fluid guiding module.
  • heated fluid may flow from the fluid guiding module directly out of the outlet openings of the tubes. Accordingly, the fluid guiding module does not include any outlet header.
  • An outlet header such as e.g. discussed in US 4453496, of the fluid guiding module would collect the heated fluid within the fluid guiding module for conducting it from the fluid guiding module to a recipient for the heated fluid.
  • Such an outlet header would prevent the insides of the tubes from being arranged in fluid communication with the outsides of the tubes.
  • each tube of the number of tubes may have a circular or an oval cross section. In this manner, the heat from an electric heating element or a fuel burner within the fluid guiding module may be efficiently transferred to the fluid flowing through the tubes during use of the fluid guiding module, the fluid heater, and the fluid heating apparatus.
  • the short axis of the oval cross section may extend in a radial direction of the central longitudinal space.
  • Figs. 1a - 1c illustrate a fluid guiding module for a fluid heater
  • Figs. 2a and 2b schematically illustrate a longitudinal section through fluid heaters according to some examples
  • Fig. 3 illustrates a perspective view of a section of Fig. 2a
  • Fig. 4 schematically illustrates a partial section of a fluid heating apparatus according to an example
  • Fig. 5 schematically illustrates a section of a fluid heating apparatus according to an example.
  • Figs. 1a - 1c illustrate a fluid guiding module 2 for a fluid heater.
  • the fluid heater may be a fluid heater as discussed below with reference to Figs. 2a - 4.
  • Fig. 1a shows a side view of the fluid guiding module 2
  • Fig. 1b shows a cross section along line B-B in Fig. 1a
  • Fig. 1c shows an isometric view of the module 2.
  • the module 2 comprises a number of tubes 4 and a header 6. Each tube 4 of the number of tubes 4 extends in parallel with a longitudinal axis 8.
  • the longitudinal axis 8 may be seen as a longitudinal axis of the module 2, which longitudinal axis 8 extends along a general extension of the module 2.
  • the cross-sectional shape of the central longitudinal space 10 is round.
  • each tube 4 of the number of tubes 4 is arranged in abutment with two adjacent tubes 4. In this manner, during use of the module 2, an efficient heat transfer from a heating element or burner within the central longitudinal space 10 to the tubes 4 and the fluid flowing through the tubes 4 may be provided.
  • the tubes 4 of the number of tubes 4 may be arranged such that a gap is formed between adjacent tubes 4.
  • the gap may be narrow, the advantage of having a narrow gap is that the heat radiated from the heating element or burner have the possibility to reach a larger surface portion of the tubes 4 than if the tubes 4 abut against each other.
  • such a gain in heat radiation reaching the tubes 4 may be anticipated with a largest circumferential gap within a range of 0.1 - 15 mm between outer surfaces of adjacent tubes 4, measured at a position where adjacent tubes 4 are at their closest to each other.
  • the boundary formed by the tubes 4 of the number of tubes 4 may be a closed boundary when the tubes 4 abut against each other or a scattered boundary when there is a distance (narrow gap) between the tubes 4.
  • At least some of the tubes 4 of the number of tubes 4 may be provided with one or more external fins to increase their outer surface areas, which are exposed to heat radiated from the heating element or burner. For instance, such fins could project from the tubes 4 into the central longitudinal space 10.
  • the tubes 4 are not directly fixedly connected to each other.
  • the connection between the header 6 and the tubes 4 ensures their relative position in relation to each other within the module 2.
  • Girdles such as ringlike members, may be arranged at intervals along the number of tubes 4 in order to maintain the relative radial positions of the tube 4 along the longitudinal axis 8. See further below with reference to Fig. 3.
  • a further layer of tubes may be provided in the fluid guiding module. More specifically, radially outside the number of tubes 4, a further number of tubes may be arranged. The tubes of the further number of tubes extending in parallel with the longitudinal axis 8 and being arranged side by side. Accordingly, each tube of the further number of tubes has two adjacent tubes.
  • the further number of tubes arranged radially outside the number of tubes 4 may receive heat radiated from the heating element or burner through the gaps.
  • the fluid guiding module 2 has a first end portion 12 and a second end portion 14 opposite to the first end portion 12 seen along the longitudinal axis 8.
  • the header 6 is arranged at the first end portion 12.
  • the header 6 forms an inlet chamber 16.
  • fluid to be heated is conducted to the inlet chamber 16, from which the fluid flows into the tubes 4 via inlet openings 18 thereof.
  • the inlet chamber 16 is arranged in fluid communication with insides of the tubes 4 via the inlet openings 18 of the tubes 4.
  • Outlet openings 20 of the tubes 4 are arranged at the second end portion 14 of the module 2. During use of the module 2, the fluid that has been heated as it flows within the tubes 4, leaves the fluid guiding module 2 via the outlet openings 20 of the tubes 4.
  • the header 6 is ring-shaped and arranged around an open central portion 22. Accordingly, the header 6 may be considered to be a hollow flange.
  • the ring-shaped header 6 is considered to be ring-shaped since it extends around the open central portion 22.
  • the ring-shaped header 6 and/or the open central portion 22 may have a square, a round, or an oval cross-sectional shape perpendicularly to the longitudinal axis 8.
  • the inlet chamber 16 may have a square, a round, or an oval cross-sectional shape corresponding to the cross-sectional shape of the header 6.
  • the open central portion 22 of the ring-shaped header 6 is arranged in juxtaposition and open communication with the central longitudinal space 10 formed by the tubes 4. This is clearly visible in the view of Fig. 1b.
  • the open central portion 22 of the ring-shaped header 6 may be aligned along the longitudinal axis 8 with the central longitudinal space 10 formed by the tubes 4 of the number of tubes 4.
  • the outlet openings 20 of the tubes 4 of the number of tubes 4 are arranged at the second end portion 14 of the module 2.
  • the outlet openings 20 collectively form the fluid outlet from the module 2.
  • the module 2 excludes an outlet header connected to the tubes 4 at the second end portion 14 of the module 2, during use of the module 2, axial expansion of the individual tubes 4 is unobstructed at the second end portion 14.
  • the natural thermal expansion of the tubes 4 does not lead to any deformation of the tubes in the radial direction to any degree that would render one or more of the functionality, operation, or servicing of the fluid guiding module 2 difficult or impossible.
  • the tubes 4 are not fixedly connected to each other along their lengths. Accordingly, the tubes 4 are arranged in the module 2 such that they can unrestrictedly expand along the longitudinal axis 8 in relation to each other.
  • the tubes 4 are attached to the header 6, such as welded to the header 6, at the first end portion 12 of the module 2. Thus, in a direction towards the second end portion 14 and beyond, the tubes 4 can expand.
  • an inner cross- sectional area of each tube 4 of the number of tubes 4 may be within a range of 50 - 200 mm 2 .
  • an inner diameter of the tube 4 is within a range of approximately 8 - 16 mm.
  • each tube 4 of the number of tubes 4 may have a wall thickness within a range of 1.5 - 4 mm.
  • the choice of wall thickness may depend inter alia on how corrosive the fluid to be heated is.
  • the tubes 4 of the number of tubes 4 may be made from one or more of the alloys in the group including a FeCrAI-alloy, a NiCr-alloy, and a NiCrFe-alloy.
  • a high temperature resistance fluid guiding module 2 may be provided.
  • the fluid guiding module 2 may be utilised for heating fluid, such as gas, up to 1200 °C or even higher.
  • each tube 4 of the number of tubes 4 may have a length within a range of 2 - 10 m. In this manner, the fluid to be heated may be guided within the tubes 4 over a sufficiently long distance, such that the fluid is heated up to 1200 °C or higher.
  • the longitudinal axis 8 may be arranged horizontally or vertically or at an angle therebetween.
  • the fluid heater 30 of Fig. 2a comprises an electric heating element 32.
  • the fluid heater 30 of Fig. 2b comprises a fuel burner 34.
  • the outlet openings 20 of the tubes 4 collectively form the fluid outlet from the fluid guiding module 2.
  • the tubes 4 are heated by the electric heating element 32 or the fuel burner 34, unrestricted longitudinal thermal expansion of the tubes 4 is enabled in the module 2 and the fluid heater 30.
  • FIG. 3 the central longitudinal space 10 formed by the tubes 4 is clearly shown.
  • two of the isolator members 38 are arranged to isolate the resistive members 36 of the electric heating element 32 from each other.
  • the tubes 4 of the number of tubes 4 in the example of Fig. 3 have an oval cross-section perpendicularly to the longitudinal axis 8.
  • the tubes 4 of the number of tubes 4 are held together around the central longitudinal space 10 by at least one ring member 42 extending around the number of tubes 4.
  • the tubes 4 may be held in position in a radial direction around the central longitudinal space 10.
  • the ring member 42 may form a girdle around the number of tubes 4 and hold them in position, such that the central longitudinal space 10 is precisely defined by the tubes 4 of the number of tubes 4.
  • the tubes 4 may abut against the ring member 42 and against each other.
  • the positions of the tubes 4 may be defined.
  • a further ring member 44 may be arranged concentrically with the ring member 42 within the central longitudinal space 10 and abut against the tubes 4 from inside the central longitudinal space 10.
  • the tubes 4 may be reliably positioned to form the central longitudinal space 10.
  • the tubes 4 are not fixedly connected to each other. Neiter need the tubes 4 be fixedly connected to the ring member 42 and the further ring member 44. Accordingly, the tubes 4 are only prevented from any substantial movement in a radial direction by the ring member 42 and the further ring member 44. Axially, the tubes 4 may move in relation to the ring member 42, the further ring member 44, and each other. Thus, the individual thermal elongation of the tubes 4 during use of the fluid heater 6 may be ensured.
  • the fluid heating apparatus 50 comprises at least one fluid heater 30 arranged within the housing 52.
  • the at least one fluid heater 30 may be at least one fluid heater 30 as discussed above with reference to Figs. 1a - 3. Accordingly, in the following reference is also made to Figs. 1a - 3.
  • the longitudinal axis 8 of the fluid heating module 2 of the at least one fluid heater 30 extends in parallel with the housing axis 54.
  • outlet openings 20 of the tubes 4 of the number of tubes 4 collectively form a fluid outlet from the fluid guiding module 2 of each of the at least one fluid heater 30.
  • the tubes 4 can thermally expand along the longitudinal axis 8 within the fluid heating apparatus 52.
  • each fluid heater 30 comprises an electric heating element 32 as shown in Fig. 2a.
  • the electric heating elements 32 are connected to an electric power supply/regulation unit 55 for controlling the heat generated by the heating elements 32.
  • the fluid heating apparatus 50 comprises a fluid inlet arrangement 56 arranged in fluid communication with the inlet chamber 16 of the fluid guiding module 2 of each of the at least one fluid heater 30. In this manner, the fluid to be heated may be admitted into the fluid heating apparatus 50 and each of the fluid heaters 30 thereof.
  • the fluid inlet arrangement 56 may comprise one or more conduits extending to the headers 6 and the inlet chambers 16 of the fluid heating modules 2 of each of the fluid heaters 30.
  • the fluid heating apparatus 50 comprises a fluid outlet arrangement 58.
  • the fluid outlet arrangement 58 is arranged in fluid communication with an internal space 60 of the housing 52.
  • the outlet openings 20 of the number of tubes 4 of each of the at least one fluid heater 30 are arranged in fluid communication with the fluid outlet arrangement 58 via the internal space 60 of the housing 52. In this manner, the heated fluid may be led from the fluid heating apparatus 50.
  • the outlet openings 20 of the tubes 4 lead heated fluid from the fluid heaters 30 into the internal space 60 of the housing 52 of the apparatus 50.
  • the housing 52 functions as a collector for the heated fluid.
  • the outlet arrangement 58 comprises an outlet conduit 62, through which the heated fluid is lead from the internal space 60 and the apparatus 50.
  • the housing 52 may be an insulated housing i.e. , may comprise an outer load bearing structure, such as a casing, which on its inside may be provided with an insulation layer.
  • the insulation layer may be made from a fibrous ceramic material, such as aluminium oxide.
  • each fluid heater 30 may be arranged within a cylindrical insulation member.
  • heat radiating from the respective fluid heater 30 may be insulated to a large extend from the housing 52.
  • the housing 52 thus, may not have to withstand such high temperatures as if each fluid heater 30 were not arranged with a cylindrical insulation member.
  • the load bearing material of the housing 52 such as an outer steel casing, may be made from a less heat-resistant steel material.
  • a further alternative may be for two or more fluid heaters 30 to be arranged within a common insulation member, which would achieve the same purpose of insulating the heat radiating from these modules from the housing 52.
  • An outer steel casing of the housing 52 may form a pressure vessel.
  • the steel casing may form a pressure vessel devised for pressure up to 16 bar.
  • Fig. 5 schematically illustrates a section of a fluid heating apparatus 50 according to an example. In much this example resembles the example of Fig. 4.
  • the fluid heating apparatus 50 is configured for heating a pressurised fluid. Accordingly, the outer steel casing of the housing 52 forms a pressure vessel. Additionally, the headers 6 enclosing the inlet chambers 16 are devised as pressure vessels. Thus, an entire fluid path through the fluid heating apparatus 50 is devised for a pressurised fluid. Further, a pressure sealing arrangement 64 may be provided at the at least two connectors 40 for electric power of the heating modules 2. Thus, the fluid heating apparatus 50 may be configured for use with pressurised fluid, such as for a pressure of up to 10 bar or up to 16 bar.

Landscapes

  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

Un module (2) de guidage de fluide, un dispositif de chauffage de fluide (30) et un appareil (50) sont divulgués. Le module (2) comprend un certain nombre de tubes (4) et un collecteur (6) formant une chambre d'entrée (16). Les tubes (4) sont agencés de manière à former une frontière autour d'un espace longitudinal central (10). Le collecteur (6) est de forme annulaire et disposé autour d'une partie centrale ouverte (22). La chambre d'entrée (16) est disposée en communication fluidique avec un intérieur de chaque tube (4). La partie centrale ouverte (22) est disposée en juxtaposition et communication ouverte avec l'espace longitudinal central (10) formé par les tubes (4). Des ouvertures de sortie (20) des tubes (4) forment collectivement une sortie de fluide depuis le module (2) de guidage de fluide. Au niveau de la seconde partie d'extrémité (14), des parties intérieures (37) des tubes (4) sont agencées en communication fluidique avec des parties extérieures (39) des tubes (4) par l'intermédiaire des ouvertures de sortie (20).
PCT/SE2025/050262 2024-03-25 2025-03-24 Dispositif de chauffage de fluide de module de guidage de fluide et appareil de chauffage de fluide Pending WO2025207004A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2430162 2024-03-25
SE2430162-4 2024-03-25

Publications (1)

Publication Number Publication Date
WO2025207004A1 true WO2025207004A1 (fr) 2025-10-02

Family

ID=97218391

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2025/050262 Pending WO2025207004A1 (fr) 2024-03-25 2025-03-24 Dispositif de chauffage de fluide de module de guidage de fluide et appareil de chauffage de fluide

Country Status (1)

Country Link
WO (1) WO2025207004A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070017502A1 (en) * 2005-07-08 2007-01-25 Yuji Kamikawa Fluid heating apparatus
WO2014107132A1 (fr) * 2013-01-02 2014-07-10 Swerea Mefos Ab Récipient à pression et procédé de chauffage d'un gaz dans un tuyau sous pression
WO2023104746A1 (fr) * 2021-12-07 2023-06-15 Kanthal Gmbh Dispositif de chauffage électrique et système de chauffage électrique
US20230213239A1 (en) * 2020-06-11 2023-07-06 Kanthal Ab Electric gas heater
WO2023183190A1 (fr) * 2022-03-24 2023-09-28 White Knight Fluid Handling Inc. Dispositif de chauffage de fluide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070017502A1 (en) * 2005-07-08 2007-01-25 Yuji Kamikawa Fluid heating apparatus
WO2014107132A1 (fr) * 2013-01-02 2014-07-10 Swerea Mefos Ab Récipient à pression et procédé de chauffage d'un gaz dans un tuyau sous pression
US20230213239A1 (en) * 2020-06-11 2023-07-06 Kanthal Ab Electric gas heater
WO2023104746A1 (fr) * 2021-12-07 2023-06-15 Kanthal Gmbh Dispositif de chauffage électrique et système de chauffage électrique
WO2023183190A1 (fr) * 2022-03-24 2023-09-28 White Knight Fluid Handling Inc. Dispositif de chauffage de fluide

Similar Documents

Publication Publication Date Title
EP2494278B1 (fr) Radiateur électrique à flux axial à double paroi pour applications sensibles aux fuites
KR101688934B1 (ko) 결합식 가스관-수관 혼합형 열교환기
US20240123421A1 (en) Reactor for Carrying Out a Chemical Reaction in a Process Fluid and Method
WO2016094817A1 (fr) Échangeur de chaleur sans tubes pour un système de chauffage de fluide et ses procédés de fabrication
CN102714068B (zh) 具有机械附接的波动管接管热套筒的加压器
CN103026143A (zh) 换热器
CN114278914A (zh) 蒸汽发生设备及其换热装置
CN210036337U (zh) 一种列管式光管蒸发器
WO2025207004A1 (fr) Dispositif de chauffage de fluide de module de guidage de fluide et appareil de chauffage de fluide
JPS6334395B2 (fr)
US4771738A (en) Dual sleeve boiler mounting apparatus
JP6695038B2 (ja) 発熱体、流体加熱器、及び、発熱体の製造方法
JPWO2012105414A1 (ja) ガス過熱器および過熱器連結体
RU2662018C1 (ru) Трубчатый подогреватель
US20240125513A1 (en) Electric air heater
CN218179267U (zh) 一种等温度场绕管加热器
CN216049308U (zh) 一种管式换热器及蒸汽发生设备
CN113446873A (zh) U形管换热器
CN221505743U (zh) 一种废热锅炉换热管和废热锅炉装置
US20250035384A1 (en) Stepped segmental baffle for electric process heater
US20250043992A1 (en) Electric process heater
AU2010340417C1 (en) A dual wall axial flow electric heater for leak sensitive applications
JP2025115148A (ja) 高温流体の加熱移送装置および高温流体の加熱装置
JP2024062110A (ja) 流体の電気加熱装置および流体の電気加熱方法
HK1168645B (en) A dual wall axial flow electric heater for leak sensitive applications

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25775321

Country of ref document: EP

Kind code of ref document: A1