EP0452672B1 - Vorrichtung zur Erzeugung von Wasserdampf durch Zusammenführen von Wasserstoff und Sauerstoff - Google Patents

Vorrichtung zur Erzeugung von Wasserdampf durch Zusammenführen von Wasserstoff und Sauerstoff Download PDF

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Publication number
EP0452672B1
EP0452672B1 EP91103777A EP91103777A EP0452672B1 EP 0452672 B1 EP0452672 B1 EP 0452672B1 EP 91103777 A EP91103777 A EP 91103777A EP 91103777 A EP91103777 A EP 91103777A EP 0452672 B1 EP0452672 B1 EP 0452672B1
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EP
European Patent Office
Prior art keywords
tubes
feedwater
steam
cylinder
injection
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.)
Expired - Lifetime
Application number
EP91103777A
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German (de)
English (en)
French (fr)
Other versions
EP0452672A1 (de
Inventor
Miroslav Dr. Podhorsky
Albrecht Dr. Brenner
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.)
Balcke Duerr AG
Original Assignee
Balcke Duerr AG
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Filing date
Publication date
Application filed by Balcke Duerr AG filed Critical Balcke Duerr AG
Priority to AT91103777T priority Critical patent/ATE93950T1/de
Publication of EP0452672A1 publication Critical patent/EP0452672A1/de
Application granted granted Critical
Publication of EP0452672B1 publication Critical patent/EP0452672B1/de
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Classifications

    • 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
    • F22B1/003—Methods of steam generation characterised by form of heating method using combustion of hydrogen with oxygen

Definitions

  • the invention relates to a device for generating water vapor by combining hydrogen and oxygen, in particular for the short-term provision of steam capacity to cover peak performance in thermal power plants, with a combustion chamber for combining hydrogen and oxygen and with a downstream injection cooler, in which the in generated in the combustion chamber, a very high temperature steam is brought by injecting feed water to the parameters suitable for feeding into the steam turbine while increasing the steam mass flow, the desuperheater being formed by a double-walled cylinder
  • Such devices for generating water vapor are known from GB-A-463 738. With them, the fuel formed by hydrogen is blown into a combustion chamber together with oxygen as an oxidizer. Furthermore, water with the quality of feed water is injected into the steam flow, whereby on the one hand a reduction in the very high steam temperature and on the other hand an increase in the steam mass flow are achieved.
  • the present invention has for its object to provide a device of the type described in the introduction, with which it is possible in a technically simple manner to control the high temperatures of around 3000 ° C. which arise from the oxidation of hydrogen and the water vapor which arises with regard to its parameters , in particular temperature and pressure, so that the steam can be fed to a downstream steam turbine.
  • the solution to this problem by the invention is characterized in that the inner wall of the double-walled cylinder is equipped with a lining made of a helically extending tube bundle, the tubes of which are fed to the feed water at the end facing the combustion chamber, the other end of the tubes with the annular space of the double-walled cylinder is connected, and that the tubes of the tube bundle form part of the lining by changing their pitch angle liner-free surfaces in which are arranged in the inner wall of the cylinder injection openings for the feed water, to which the feed water is fed through a feed water guide cylinder, which is between the inner wall and the outer wall of the double-walled cylinder is arranged in the region of the injection openings and feeds the feed water to the injection openings from the end of the annular space facing away from the feed water inlet.
  • a steam generator of the generic type consisting of a combustion chamber and an injection cooler is created, which consists of simple components which can be manufactured in a conventional manner and processed with conventional technology, the high temperatures and pressures being safely controlled.
  • the entire inner wall of the double-walled cylinder is cooled intensively, in the area of the lining by the tubes, which also largely prevent heating of the inner wall by radiation, and in the area of the lining-free surfaces by the in in this area feed water exiting through the injection openings.
  • the design according to the invention thus avoids uncontrollable thermal stresses both in the stationary operating state and when starting and stopping, because thin-walled components are used and structural temperature differences within a component are avoided.
  • the device according to the invention is particularly suitable for the short-term provision of steam capacity for covering peak power in thermal power plants, which can be both conventional steam generators and nuclear power plants.
  • the tubes can be designed with a rectangular cross section.
  • the heat transfer coefficient on the inner wall of the lining formed by the tubes is reduced by the fact that a vortex-free flow is formed on the surface of the lining that is acted upon.
  • round or elliptical tubes can also be used in cross-section, whereby the costs for the production of the device according to the invention can be increased.
  • the lining-free surfaces are formed by an approximately axial course of the tubes. This makes it possible in a simple manner to create the required area for the injection openings and to achieve a streamlined injection of the feed water.
  • the approximately axially extending sections of the tubes are guided in depressions in the inner wall, so that there is also a secure mounting of the approximately axially extending tube sections.
  • the tubes of the tube bundle are made with a very small wall thickness and from a material with high thermal conductivity and a low coefficient of thermal expansion.
  • circular tubes with a diameter of 6 mm and a wall thickness of 0.3 mm are used in cross section.
  • the invention proposes to design the partial region of the double-walled cylinder lying between the front end of the double-walled cylinder and the injection openings at least as part of the combustion chamber.
  • the combustion chamber used to oxidize the hydrogen in which temperatures of approximately 3000 ° C. prevail, can be at least partially made in one piece with the injection cooler.
  • the device intended for generating water vapor by combining hydrogen and oxygen comprises a double-walled cylinder 1 comprising an inner wall 2, an outer wall 3 and two end walls 4 and 5, through which an annular space 6 is formed which extends over the entire length of the double-walled cylinder 1.
  • a lining of a plurality of tubes 7 is arranged on the inner wall 2.
  • tubes 7 form a tube bundle with an essentially helical shape.
  • the tubes have a circular cross section with an outer diameter of 6 mm and a wall thickness of 0.3 mm.
  • tubes with a different cross section for example a rectangular cross section, can also be used.
  • Feed water is fed to the tubes 7 of the tube bundle formed as a multi-start spiral at the end of the cylinder formed by the end wall 4.
  • the feed water supply 8 is indicated by an arrow.
  • the other end of the pipes 7 is connected via pipe bends 9 to the end of the annular space 6 which is closed by the end wall 5.
  • the double-walled cylinder 1 is provided with an annular flange 10 for suspension or storage.
  • the tubes 7 run at an angle deviating from their pitch angle, so that surfaces 11 of the inner wall 2 which are free of linings result between adjacent tubes 7 of the tube bundle.
  • these partial lengths 7a of the tubes 7 extend axially Cylinder 1.
  • FIG. 2 reveals that this also results in axially extending surfaces 11 between adjacent partial lengths 7a of the tubes 7.
  • Injection openings 12 are formed in these lining-free surfaces 11 of the inner wall 2.
  • Feed water is injected into the interior of the cylinder 1 through these injection openings 12; the feed water has previously flowed through the tubes 7 including their partial lengths 7a and the entire axial extent of the annular space 6. As a result, not only the tubes 7 but also the inner wall 2 are cooled. In order to also ensure cooling of the part length of the inner wall 2 adjoining the end wall 4, a feed water guide cylinder 13 is arranged in the annular space 6, which extends both over the area of the injection openings 12 and over the area of the inner wall 2 that extends between the end wall 4 and the injection openings 12. The feed water guide cylinder 13 thus ensures that the feed water supplied to the annular space 6 via the pipe bends 9 reaches the area of the end wall 4 and is supplied to the injection openings 12 coming from this end wall 4.
  • the sectional view in FIG. 2 finally reveals that the straight and axial partial lengths 7a of the tubes 7 are guided in depressions 2a in the end wall 2. This results in a guidance of these partial lengths 7a against lateral displacements; on the other hand it is avoided that 11 material accumulations occur in the area of the lining-free surfaces which could lead to uncontrollable thermal stresses.
  • An arrow 14 indicates that the end of the double-walled cylinder 1 having the end wall 4 is supplied with water vapor which is produced by combining hydrogen and oxygen.
  • the inlet area of this medium which is approximately 3000 ° C., accordingly forms at least part of a combustion chamber which is cooled by feed water.
  • This feed water which is fed through the feed water supply 8 first to the tubes 7 and then to the annular space 6 for cooling, is then injected via the injection openings 12 into the interior of the double-walled cylinder 1, whereby on the one hand the parameters, in particular the temperature and pressure, of the hot feed water are brought to values which allow the steam emerging from the cylinder 1 to be fed to a downstream steam turbine; on the other hand, the steam mass flow is increased by the injected feed water, since the quantity of steam supplied to the downstream steam turbine, not shown in the drawing, results from the addition of the two partial quantities which, on the one hand, result from combining hydrogen and oxygen and, on the other hand, from evaporation of the feed water.
  • the injection cooler forming at least part of the combustion chamber consists of simple components which can also be produced in a conventional manner and processed using conventional technology. All parts of the construction heated by contact or radiation from the steam at 3000 ° C are reliably cooled, while at the same time ensuring that no uncontrollable thermal stresses arise in the components, both in a stationary operating state and when starting up and shutting down. In this context, it is important that thin-walled components with the same wall thickness are used so that structure-related temperature differences within a component are also excluded.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air Supply (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Hydrogen, Water And Hydrids (AREA)
EP91103777A 1990-04-19 1991-03-13 Vorrichtung zur Erzeugung von Wasserdampf durch Zusammenführen von Wasserstoff und Sauerstoff Expired - Lifetime EP0452672B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91103777T ATE93950T1 (de) 1990-04-19 1991-03-13 Vorrichtung zur erzeugung von wasserdampf durch zusammenfuehren von wasserstoff und sauerstoff.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012431 1990-04-19
DE4012431A DE4012431C1 (enrdf_load_stackoverflow) 1990-04-19 1990-04-19

Publications (2)

Publication Number Publication Date
EP0452672A1 EP0452672A1 (de) 1991-10-23
EP0452672B1 true EP0452672B1 (de) 1993-09-01

Family

ID=6404630

Family Applications (2)

Application Number Title Priority Date Filing Date
EP91103777A Expired - Lifetime EP0452672B1 (de) 1990-04-19 1991-03-13 Vorrichtung zur Erzeugung von Wasserdampf durch Zusammenführen von Wasserstoff und Sauerstoff
EP91105943A Expired - Lifetime EP0452839B1 (de) 1990-04-19 1991-04-13 Vorrichtung zur Erzeugung von Wasserdampf durch Zusammenführen von Wasserstoff und Sauerstoff

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91105943A Expired - Lifetime EP0452839B1 (de) 1990-04-19 1991-04-13 Vorrichtung zur Erzeugung von Wasserdampf durch Zusammenführen von Wasserstoff und Sauerstoff

Country Status (4)

Country Link
EP (2) EP0452672B1 (enrdf_load_stackoverflow)
AT (2) ATE93950T1 (enrdf_load_stackoverflow)
DE (3) DE4012431C1 (enrdf_load_stackoverflow)
ES (2) ES2047353T3 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4083501A1 (de) 2021-04-30 2022-11-02 Siemens Energy Global GmbH & Co. KG Verbrennungseinrichtung zur verbrennung von wasserstoff und verfahren zur durchführung der verbrennung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE397331A (enrdf_load_stackoverflow) *
GB463738A (en) * 1935-10-22 1937-04-06 Rudolf Arnold Erren Improvements relating to direct contact steam generators
US3101592A (en) * 1961-01-16 1963-08-27 Thompson Ramo Wooldridge Inc Closed power generating system
AT283386B (de) * 1968-05-16 1970-08-10 Siemens Ag Einspritzkühler für Dampfkraftanlagen
US4211071A (en) * 1978-05-19 1980-07-08 Vapor Energy, Inc. Vapor generators
DE3512947A1 (de) * 1985-04-11 1986-10-16 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Verfahren zur erzeugung von wasserdampf und dampferzeuger zur durchfuehrung dieses verfahrens

Also Published As

Publication number Publication date
ES2045979T3 (es) 1994-01-16
EP0452839A1 (de) 1991-10-23
DE59100337D1 (de) 1993-10-07
ES2047353T3 (es) 1994-02-16
EP0452672A1 (de) 1991-10-23
DE59100338D1 (de) 1993-10-07
DE4012431C1 (enrdf_load_stackoverflow) 1991-08-01
EP0452839B1 (de) 1993-09-01
ATE93950T1 (de) 1993-09-15
ATE93951T1 (de) 1993-09-15

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