WO2009019315A2 - Générateur de vapeur surchauffée - Google Patents

Générateur de vapeur surchauffée Download PDF

Info

Publication number
WO2009019315A2
WO2009019315A2 PCT/EP2008/060484 EP2008060484W WO2009019315A2 WO 2009019315 A2 WO2009019315 A2 WO 2009019315A2 EP 2008060484 W EP2008060484 W EP 2008060484W WO 2009019315 A2 WO2009019315 A2 WO 2009019315A2
Authority
WO
WIPO (PCT)
Prior art keywords
segment
wound
generator according
electric resistor
rectilinear
Prior art date
Application number
PCT/EP2008/060484
Other languages
English (en)
Other versions
WO2009019315A3 (fr
Inventor
Roberto Colombo
Angelo Irrera
Maurizio Biasi
Original Assignee
I.R.C.A. S.P.A. 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 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini filed Critical I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini
Priority to EP08787068.9A priority Critical patent/EP2195575B1/fr
Publication of WO2009019315A2 publication Critical patent/WO2009019315A2/fr
Publication of WO2009019315A3 publication Critical patent/WO2009019315A3/fr

Links

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.
  • State of the art Devices adapted to generate overheated steam comprise, in general, two stages: a first stage provides the latent heat for the water to evaporate; a second stage further heats the steam overheating it.
  • the heat may be transferred to the water by means of various heat generators, e.g. fossil fuel or combustible oils and by-products, including gases. Other heaters use electric energy.
  • 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.
  • 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 device object of the present invention is much more compact and efficient than the known devices. It is compact because the thickness of the electric resistor is small; furthermore, it is very efficient because said electric resistor transfers heat inside the first segment of the pipe and outside the second segment which is wound thereabout.
  • said device is easy to be applied when generating overheated steam is needed, despite having a small available space and limited energy resources.
  • Fig. 1 shows an axial plane section of the steam generator according to the invention.
  • a preferred embodiment of a overheated steam generator in accordance with the present invention includes: - a rectilinear pipe segment 1 ;
  • 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. Subsequently, the fluid flow travels along said wound pipe segment which completely covers said electric resistor receiving the heat which is radially spread from the latter towards the external environment so as to become overheated steam. It is thus apparent that, before being able to reach the external environment, the heat must cross at least one further layer made of the pipe winding forming said wound segment, thus degrading.
  • 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 should take 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)

Abstract

L'invention concerne un générateur de vapeur pour la production de vapeur surchauffée, comprenant un segment de tuyau rectiligne 1; une résistance électrique 3 enroulée autour dudit segment et alimentée par une source électrique; un segment de tuyau enroulé 2, dont une extrémité est raccordée audit premier segment rectiligne, sur lequel elle est enroulée pour former une spirale cylindrique qui couvre ladite résistance électrique 3.
PCT/EP2008/060484 2007-08-09 2008-08-08 Générateur de vapeur surchauffée WO2009019315A2 (fr)

Priority Applications (1)

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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2007A000434 2007-08-09
ITRM20070434 ITRM20070434A1 (it) 2007-08-09 2007-08-09 Generatore di vapore surriscaldato

Publications (2)

Publication Number Publication Date
WO2009019315A2 true WO2009019315A2 (fr) 2009-02-12
WO2009019315A3 WO2009019315A3 (fr) 2009-04-23

Family

ID=40299894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/060484 WO2009019315A2 (fr) 2007-08-09 2008-08-08 Générateur de vapeur surchauffée

Country Status (3)

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

Cited By (2)

* 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
EP3594570A4 (fr) * 2017-03-07 2021-04-28 Jissen Kankyo Kenkyusho Co., Ltd. Dispositif de production de vapeur surchauffée et système de décomposition thermique l'utilisant

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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3594570A4 (fr) * 2017-03-07 2021-04-28 Jissen Kankyo Kenkyusho Co., Ltd. Dispositif de production de vapeur surchauffée et système de décomposition thermique l'utilisant
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
ITRM20070434A1 (it) 2009-02-10
WO2009019315A3 (fr) 2009-04-23
EP2195575B1 (fr) 2016-12-28

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