EP2195575B1 - Generateur de vapeur surchauffee - Google Patents

Generateur de vapeur surchauffee Download PDF

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Publication number
EP2195575B1
EP2195575B1 EP08787068.9A EP08787068A EP2195575B1 EP 2195575 B1 EP2195575 B1 EP 2195575B1 EP 08787068 A EP08787068 A EP 08787068A EP 2195575 B1 EP2195575 B1 EP 2195575B1
Authority
EP
European Patent Office
Prior art keywords
pipe segment
wound
generator according
overheated steam
electric resistor
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.)
Active
Application number
EP08787068.9A
Other languages
German (de)
English (en)
Other versions
EP2195575A2 (fr
Inventor
Roberto Colombo
Angelo Irrera
Maurizio Biasi
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.)
IRCA SpA Industria Resistenze Corazzate e Affini
Original Assignee
IRCA SpA Industria Resistenze Corazzate e Affini
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 IRCA SpA Industria Resistenze Corazzate e Affini filed Critical IRCA SpA Industria Resistenze Corazzate e Affini
Publication of EP2195575A2 publication Critical patent/EP2195575A2/fr
Application granted granted Critical
Publication of EP2195575B1 publication Critical patent/EP2195575B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G1/00—Steam superheating characterised by heating method
    • F22G1/16—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
    • F22G1/165—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil by electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/282—Methods of steam generation characterised by form of heating method in boilers heated electrically with water or steam circulating in tubes or ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • F22G3/005—Annular steam tubes, i.e. the steam being heated between concentric tubes with the heating fluid flowing in inner and around outer tube

Definitions

  • the present invention relates to a device for generating overheated steam.
  • Devices adapted to generate overheated steam comprise, in general, two stages:
  • a typical electric device for generating overheated steam includes a pipe about which an electric resistor is wound for a length such as to allow to transfer the heat necessary for the purpose.
  • Such a device typology is particularly cumbersome and not very efficient due to the fact that a heat portion is transferred from the resistor to the environment instead of to the fluid.
  • An example of this type of steam generator is disclosed in GB 886 189 .
  • Another overheated steam generator includes a first pipe through which the fluid flows, about which an electric winding is wound.
  • Said winding crossed by the electric current, generates a magnetic field which is interconnected both with the fluid circulating in said first pipe and with the fluid circulating in a further pipe externally and spirally wound thereabout, despite being electrically insulated therefrom.
  • the fluid is heated by the energy transferred to the fluid from the interconnected magnetic flux.
  • the magnetic induction is proportional to the number of turns and to the intensity of the circulating current, therefore in order to generate a sufficiently intense field, a winding made of a copper wire of large section and long length so as to form a great number of turns must be used.
  • the present invention intends to reach the afore-discussed objects by making a overheated steam generator having the features of claim 1.
  • said device is easy to be applied when generating overheated steam is needed, despite having a small available space and limited energy resources.
  • the fluid flow passes to the gaseous state, becoming wet steam, passing through said rectilinear segment and receiving, from said electric resistor, the heat which spreads inwards the cylindrical surface formed by the resistor.
  • the fluid flow is provided for crossing said device in the opposite direction as compared to what shown in the figure, so that the device externally has a temperature limited to the boiling temperature of the fluid itself, further increasing the performance of the device.
  • further layers of pipe winding 2 are provided for forming as many concentric tube bundles to further increase the performance of the device.
  • the external temperature of the device is almost that of the fluid entering the same, subsequently, as the fluid progressively flows through the increasingly more internal tube bundles of the pipe, the fluid gradually acquires more heat until the overheated steam stage is reached, until it is released from the rectilinear segment.
  • the electric resistor 3 in a section view takes a complementary course with respect to the tube bundle which is overlapping the rectilinear pipe segment, instead of forming a cylindrical layer or a solenoid, so as to fill the gaps between said rectilinear segment and said wound segment.
  • said course is sinusoidal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Resistance Heating (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Claims (6)

  1. Générateur de vapeur, précisément pour la production de vapeur surchauffée, comportant :
    - un segment de tuyau rectiligne (1) ;
    - un résistor électrique (3) enroulé autour dudit segment de tuyau rectiligne et alimenté par une source électrique ;
    - un segment de tuyau enroulé (2), dont une extrémité est raccordée audit segment de tuyau rectiligne, qui est enroulé pour former une spirale cylindrique qui couvre ledit résistor électrique,
    caractérisé en ce que ledit résistor électrique (3) est réalisé de façon à prendre, dans une vue en coupe, une trajectoire complémentaire par rapport au segment de tuyau enroulé, moyennant quoi les interstices entre ledit segment de tuyau rectiligne et ledit segment de tuyau enroulé sont remplis.
  2. Générateur selon la revendication 1, dans lequel ledit segment de tuyau enroulé (2) forme une spirale cylindrique qui forme au moins une couche de faisceau de tubes.
  3. Générateur selon la revendication 2, dans lequel ledit faisceau de tubes est formé par des tubes placés côte à côte.
  4. Générateur selon la revendication 2, dans lequel d'autres faisceaux de tubes formés par ledit segment de tuyau enroulé (2) sont concentriques.
  5. Générateur selon la revendication 1, dans lequel ledit résistor électrique (3) forme un solénoïde.
  6. Générateur selon la revendication 1, dans lequel ladite trajectoire complémentaire a une forme sinusoïdale.
EP08787068.9A 2007-08-09 2008-08-08 Generateur de vapeur surchauffee Active EP2195575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM20070434 ITRM20070434A1 (it) 2007-08-09 2007-08-09 Generatore di vapore surriscaldato
PCT/EP2008/060484 WO2009019315A2 (fr) 2007-08-09 2008-08-08 Générateur de vapeur surchauffée

Publications (2)

Publication Number Publication Date
EP2195575A2 EP2195575A2 (fr) 2010-06-16
EP2195575B1 true EP2195575B1 (fr) 2016-12-28

Family

ID=40299894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08787068.9A Active EP2195575B1 (fr) 2007-08-09 2008-08-08 Generateur de vapeur surchauffee

Country Status (3)

Country Link
EP (1) EP2195575B1 (fr)
IT (1) ITRM20070434A1 (fr)
WO (1) WO2009019315A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020076245A1 (fr) 2018-10-12 2020-04-16 Guemues Mustafa Générateur de vapeur saturée/surchauffée ou d'air chaud

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6679818B2 (ja) * 2017-03-07 2020-04-15 株式会社実践環境研究所 熱分解システム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB886189A (en) * 1959-02-26 1962-01-03 Atomic Energy Authority Uk Improvements in or relating to liquid evaporating apparatus
DE3120682A1 (de) * 1981-05-23 1982-12-16 Horst 5241 Elben Hammes Elektrisch beheizter zwangsdurchlauferhitzer
US5549078A (en) * 1994-11-21 1996-08-27 Annecharico; Robert L. Device for superheating steam
FR2878419B1 (fr) * 2004-11-29 2007-01-19 Seb Sa Distributeur de boissons infusees comprenant une chaudiere amelioree et son procede de fabrication
US7552701B2 (en) * 2006-05-16 2009-06-30 Shell Oil Company Boiler for making super heated steam and its use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020076245A1 (fr) 2018-10-12 2020-04-16 Guemues Mustafa Générateur de vapeur saturée/surchauffée ou d'air chaud

Also Published As

Publication number Publication date
EP2195575A2 (fr) 2010-06-16
WO2009019315A3 (fr) 2009-04-23
WO2009019315A2 (fr) 2009-02-12
ITRM20070434A1 (it) 2009-02-10

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