EP0452672B1 - Apparatus for steam production by combining oxygen and hydrogen - Google Patents
Apparatus for steam production by combining oxygen and hydrogen Download PDFInfo
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- 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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- tubes
- feedwater
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- 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
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- 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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Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Erzeugung von Wasserdampf durch Zusammenführen von Wasserstoff und Sauerstoff, insbesondere zur kurzfristigen Bereitstellung von Dampfkapazität für die Abdeckung von Spitzenleistungen in thermischen Kraftwerken, mit einer Brennkammer zur Zusammenführung von Wasserstoff und Sauerstoff und mit einem nachgeschalteten Einspritzkühler, in dem der in der Brennkammer erzeugte, eine sehr hohe Temperatur aufweisende Wasserdampf durch Einspritzen von Speisewasser auf die zur Zuführung in die Dampfturbine geeigneten Parameter unter gleichzeitiger Vergrößerung des Dampfmassenstromes gebracht wird, wobei der Einspritzkühler durch einen doppelwandigen Zylinder gebildet istThe 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
Derartige Vorrichtungen zur Erzeugung von Wasserdampf sind aus der GB-A-463 738 bekannt. Bei ihnen wird der durch Wasserstoff gebildete Brennstoff gemeinsam mit Sauerstoff als Oxidator in eine Brennkammer eingeblasen. Weiterhin wird Wasser mit der Qualität von Speisewasser in den Dampfstrom eingespritzt, wodurch einerseits eine Reduzierung der sehr hohen Dampftemperatur und andererseits eine Vergrößerung des Dampfmassenstromes erreicht werden.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.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs beschriebenen Art zu schaffen, mit der es auf technisch einfache Weise möglich ist, die durch die Oxidation von Wasserstoff entstehenden hohen Temperaturen von etwa 3000° C zu beherrschen und den entstehenden Wasserdampf hinsichtlich seiner Parameter, insbesondere Temperatur und Druck, so zu verändern, daß der Dampf einer nachgeschalteten Dampfturbine zugeführt werden kann.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.
Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß die Innenwand des doppelwandigen Zylinders mit einer Auskleidung aus einem wendelförmig verlaufenden Rohrbündel ausgestattet ist, dessen Rohren das Speisewasser an dem der Brennkammer zugewandten Ende zugeführt wird, wobei das andere Ende der Rohre mit dem Ringraum des doppelwandigen Zylinders verbunden ist, und daß die Rohre des Rohrbündels auf einer Teillänge durch Änderung ihres Steigungswinkels auskleidungsfreie Flächen bilden, in denen in der Innenwand des Zylinders Einspritzöffnungen für das Speisewasser angeordnet sind, denen das Speisewasser durch einen Speisewasserführungszylinder zugeführt wird, der zwischen der Innenwand und Außenwand des doppelwandigen Zylinders im Bereich der Einspritzöffnungen angeordnet ist und das Speisewasser von dem vom Speisewassereintritt abgewandten Ende des Ringraumes den Einspritzöffnungen zuführt.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.
Mit dem Vorschlag der Erfindung wird ein aus Brennkammer und Einspritzkühler bestehender Dampferzeuger der gattungsgemäßen Art geschaffen, der aus einfachen Bauteilen besteht, die in herkömmlicher Weise hergestellt und mit üblicher Technologie verarbeitet werden können, wobei die hohen Temperaturen und Drücke sicher beherrscht werden. Die komplette Innenwand des doppelwandigen Zylinders wird intensiv gekühlt, und zwar im Bereich der Auskleidung durch die Rohre, die außerdem eine Erwärmung der Innenwand durch Strahlung größtenteils verhindern, und im Bereich der auskleidungsfreien Flächen durch das in diesem Bereich durch die Einspritzöffnungen austretende Speisewasser. Die erfindungsgemäße Konstruktion vermeidet somit unbeherrschbare Wärmespannungen sowohl im stationären Betriebszustand als auch beim An- und Abfahren, weil dünnwandige Bauteile verwendet und strukturbedingte Temperaturdifferenzen innerhalb eines Bauteiles vermieden werden. Weiterhin wird sichergestellt, daß das aus den Enden der Rohre in den Ringraum des doppelwandigen Zylinders eintretende Speisewasser an den Einspritzöffnungen vorbei zum anderen Ende des Ringraumes geführt wird, so daß die Innenwand des doppelwandigen Zylinders auf ihrer gesamten Fläche zuverlässig durch Speisewasser gekühlt wird.With the proposal of the invention, 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. Furthermore, it is ensured that the feed water entering the annular space of the double-walled cylinder from the ends of the pipes is guided past the injection openings to the other end of the annular space, so that the entire surface of the inner wall of the double-walled cylinder is reliably cooled by feed water.
Die erfindungsgemäße Vorrichtung ist insbesondere zur kurzfristigen Bereitstellung von Dampfkapazität für die Abdeckung von Spitzenleistungen in thermischen Kraftwerken geeignet, wobei es sich sowohl um konventionelle Dampferzeuger als auch um Kernkraftwerke handel kann.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.
Bei einer bevorzugten Ausführungsform der Erfindung können die Rohre mit rechteckigem Querschnitt ausgeführt sein. Hierdurch wird der Wärmeübergangskoeffizient an der Innenwand der durch die Rohre gebildeten Auskleidung dadurch reduziert, daß sich eine wirbelfreie Strömung an der beaufschlagten Fläche der Auskleidung ausbildet. Selbstverständlich können jedoch auch im Querschnitt runde oder elliptische Rohre verwendet werden, wodurch sich die Kosten für die Herstellung der erfindungsgemäßen Vorrichtung verrigern lassen.In a preferred embodiment of the invention, the tubes can be designed with a rectangular cross section. As a result, 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. Of course, 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.
Gemäß einem weiteren Merkmal der Erfindung werden die auskleidungsfreien Flächen durch einen etwa axialen Verlauf der Rohre gebildet. Hierdurch wird es auf einfache Weise möglich, die jeweils benötigte Fläche für die Einspritzöffnungen zu schaffen und eine strömungsgünstige Einspritzung des Speisewassers zu erzielen. In vorteilhafter Weiterbildung können hierbei die etwa axial verlaufenden Abschnitte der Rohre in Vertiefungen der Innenwand geführt werden, so daß sich eine sichere Lagerung auch der etwa axial verlaufenden Rohrabschnitte ergibt.According to a further feature of the invention, 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. In an advantageous further development in this case 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.
Die Rohre des Rohrbündels werden mit einer sehr geringen Wandstärke und aus einem Material mit hoher Wärmeleitfähigkeit und einem geringen Temperaturausdehnungskoeffizienten hergestellt. Bei einem Ausführungsbeispiel werden im Querschnitt kreisförmige Rohre mit einem Durchmesser von 6 mm und einer Wandstärke von 0,3 mm verwendet.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. In one embodiment, circular tubes with a diameter of 6 mm and a wall thickness of 0.3 mm are used in cross section.
Mit der Erfindung wird schließlich vorgeschlagen, den zwischen dem vorderen Ende des doppelwandigen Zylinders und den Einspritzöffnungen liegenden Teilbereich des doppelwandigen Zylinders zumindest als einen Teil der Brennkammer auszubilden. Auf diese Weise kann die zur Oxidation des Wasserstoffes dienende Brennkammer, in der Temperaturen von etwa 3000° C herrschen, zumindest teilweise einstückig mit dem Einspritzkühler ausgeführt werden.Finally, 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. In this way, 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.
Auf der Zeichnung ist ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung dargestellt, und zwar zeigen:
- Fig.1
- einen verkürzt dargestellten Längsschnitt durch die Vorrichtung und
- Fig. 2
- einen Teilschnitt durch den doppelwandigen Zylinder gemäß der Schnittlinie II - II in Fig.1, einschließlich einer vergrößerten Teildarstellung.
- Fig. 1
- a shortened longitudinal section through the device and
- Fig. 2
- a partial section through the double-walled cylinder along the section line II - II in Figure 1, including an enlarged partial view.
Die zur Erzeugung von Wasserdampf durch Zusammenführen von Wasserstoff und Sauerstoff bestimmte Vorrichtung umfaßt einen doppelwandigen Zylinder 1 aus einer Innenwand 2, einer Außenwand 3 und zwei Stirnwänden 4 und 5, durch die ein über die gesamte Länge des doppelwandigen Zylinders 1 verlaufender Ringraum 6 gebildet wird. An der Innenwand 2 ist eine Auskleidung aus einer Mehrzahl von Rohren 7 angeordnet.The device intended for generating water vapor by combining hydrogen and oxygen comprises a double-walled cylinder 1 comprising an
Diese Rohre 7 bilden ein Rohrbündel mit im wesentlichen wendelförmigem Verlauf. Beim Ausführungsbeispiel haben die Rohre einen kreisförmigen Querschnitt mit einem Außendurchmesser von 6 mm und einer Wandstärke von 0,3 mm. Es können aber auch Rohre mit anderem Querschnitt, beispielsweise Rechteckquerschnitt verwendet werden.These
Den Rohren 7 des als mehrgängige Wendel ausgebildeten Rohrbündels wird an dem durch die Stirnwand 4 gebildeten Ende des Zylinders 1 Speisewasser zugeführt. Die Speisewasserzufuhr 8 ist durch einen Pfeil angedeutet. Das andere Ende der Rohre 7 ist über Rohrbögen 9 mit dem durch die Stirnwand 5 verschlossenen Ende des Ringraumes 6 verbunden. An diesem Ende ist der doppelwandige Zylinder 1 mit einem Ringflansch 10 zur Aufhängung bzw. Lagerung versehen.Feed water is fed to the
Auf einem Teilbereich der Längserstreckung des Rohrbündels verlaufen die Rohre 7 unter einem von ihrem Steigungswinkel abweichenden Winkel, so daß sich zwischen benachbarten Rohren 7 des Rohrbündels auskleidungsfreie Flächen 11 der Innenwand 2 ergeben. Bei dem auf der Zeichnung dargestellten Ausführungsbeispiel verlaufen diese Teillängen 7a der Rohre 7 axial zum Zylinder 1. Die Fig.2 läßt erkennen, daß hierdurch ebenfalls axial verlaufende Flächen 11 zwischen benachbarten Teillängen 7a der Rohre 7 entstehen. In diesen auskleidungsfreien Flächen 11 der Innenwand 2 sind Einspritzöffnungen 12 ausgebildet. Insgesamt ergeben sich mehrere axial verlaufende Reihen derartiger Einspritzöffnungen 12 verteilt über den Umfang des Zylinders 1.On a partial region of the longitudinal extent of the tube bundle, the
Durch diese Einspritzöffnungen 12 wird Speisewasser in das Innere des Zylinders 1 eingespritzt; das Speisewasser hat zuvor die Rohre 7 einschließlich deren Teillängen 7a und die gesamte axiale Erstreckung des Ringraumes 6 durchströmt. Hierdurch werden nicht nur die Rohre 7, sondern auch die Innenwand 2 gekühlt. Um auch eine Kühlung der sich an die Stirnwand 4 anschließenden Teillänge der Innenwand 2 sicherzustellen, ist im Ringraum 6 ein Speisewasserführungszylinder 13 angeordnet, der sich sowohl über den Bereich der Einspritzöffnungen 12 als auch über den Bereich der Innenwand 2 erstreckt, der zwischen der Stirnwand 4 und den Einspritzöffnungen 12 liegt. Der Speisewasserführungszylinder 13 sorgt somit dafür, daß das über die Rohrbögen 9 dem Ringraum 6 zugeführte Speisewasser bis in den Bereich der Stirnwand 4 gelangt und von dieser Stirnwand 4 kommend den Einspritzöffnungen 12 zugeführt wird.Feed water is injected into the interior of the cylinder 1 through these
Die Schnittdarstellung in Fig.2 läßt schließlich erkennen, daß die geradlinig und axial verlaufenden Teillängen 7a der Rohre 7 in Vertiefungen 2a der Stirnwand 2 geführt sind. Hierdurch ergibt sich einmal eine Führung dieser Teillängen 7a gegen seitliche Verlagerungen; zum anderen wird vermieden, daß im Bereich der auskleidungsfreien Flächen 11 Materialanhäufungen entstehen, die zu unbeherrschbaren Wärmespannungen führen könnten.The sectional view in FIG. 2 finally reveals that the straight and axial
Durch einen Pfeil 14 ist angedeutet, daß dem die Stirnwand 4 aufweisenden Ende des doppelwandigen Zylinders 1 Wasserdampf zugeführt wird, der durch Zusammenführen von Wasserstoff und Sauerstoff entsteht. Der Eintrittsbereich dieses etwa 3000° C heißen Mediums bildet demgemäß zumindest einen Teil einer Brennkammer, die durch Speisewasser gekühlt wird. Dieses durch die Speisewasserzufuhr 8 zuerst den Rohren 7 und anschließend dem Ringraum 6 zur Kühlung zugeführte Speisewasser wird anschließend über die Einspritzöffnungen 12 in das Innere des doppelwandigen Zylinders 1 eingespritzt, wodurch einerseits die Parameter, wie insbesondere Temperatur und Druck, des heißen Speisewassers auf Werte gebracht werden, die es gestatten, den aus dem Zylinder 1 austretenden Dampf einer nachgeschalteten Dampfturbine zuzuführen; andererseits wird durch das eingespritzte Speisewasser der Dampfmassenstrom vergrößert, da sich die der nachgeschalteten, auf der Zeichnung nicht dargestellten Dampfturbine zugeführte Dampfmenge durch Addition der beiden Teilmengen ergibt, die einerseits durch Zusammenführen von Wasserstoff und Sauerstoff und andererseits durch Verdampfen von Speisewasser entstehen.An
Das auf der Zeichnung dargestellte Ausführungsbeispiel läßt erkennen, daß der zumindest einen Teil der Brennkammer bildende Einspritzkühler aus einfachen Bauteilen besteht, die zudem in herkömmlicher Weise hergestellt und mit üblicher Technologie verarbeitet werden können. Alle durch Kontakt oder Strahlung von dem 3000° C heißen Dampf erhitzten Teile der Konstruktion werden zuverlässig gekühlt, wobei gleichzeitig sichergestellt ist, daß keine unbeherrschbaren Wärmespannungen in den Bauteilen entstehen, und zwar sowohl bei einem stationären Betriebszustand als auch beim An- und Abfahren. In diesem Zusammenhang ist es wichtig, daß dünnwandige Bauteile mit gleichbleibender Wandstärke verwendet werden, so daß auch strukturbedingte Temperaturdifferenzen innerhalb eines Bauteiles ausgeschlossen sind.The exemplary embodiment shown in the drawing shows that 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.
- 11
- doppelwandiger Zylinderdouble-walled cylinder
- 22nd
- InnenwandInterior wall
- 2a2a
- Vertiefungdeepening
- 33rd
- AußenwandOuter wall
- 44th
- StirnwandFront wall
- 55
- StirnwandFront wall
- 66
- RingraumAnnulus
- 77
- Rohrpipe
- 7a7a
- TeillängePartial length
- 88th
- SpeisewasserzufuhrFeed water supply
- 99
- RohrbogenElbows
- 1010th
- RingflanschRing flange
- 1111
- auskleidungsfreie Flächeliner-free area
- 1212
- EinspritzöffnungInjection port
- 1313
- SpeisewasserführungszylinderFeed water guide cylinder
- 1414
- Pfeilarrow
Claims (5)
- Apparatus for generating steam by combining hydrogen and oxygen, in particular for the provision at short notice of steam capacity for covering peak outputs in thermal power stations, having a combustion chamber for combining hydrogen and oxygen and a downstream injection cooler in which the steam generated in the combustion chamber, which has a very high temperature, is brought to parameters suitable for the feed into the steam turbine by injection of feedwater with simultaneous increase in the steam mass flow rate, the injection cooler being formed by a jacketed cylinder, characterised in that the internal wall (2) of the jacketed cylinder (1) is equipped with a cladding comprising a spirally running tube bundle, to the tubes (7) of which the feedwater is fed at the end facing the combustion chamber, the other end of the tubes (7) being connected to the annular space (6) of the jacketed cylinder (1), and in that the tubes (7) of the tube bundle form, over a part-length (7a) by changing their helix angle, cladding-free areas (11) in which injection orifices (12) for the feedwater are arranged in the internal wall (2) of the cylinder (1), to which orifices the feedwater is fed through a feedwater guide cylinder (13) which is arranged between the internal wall (2) and external wall (3) of the jacketed cylinder (1) in the region of the injection orifices (12) and feeds the feedwater to the injection orifices (12) from the end of the annular space (6) facing away from the feedwater inlet.
- Apparatus according to Claims 1, characterised in that the tubes are designed with a rectangular cross-section.
- Apparatus according to Claims 1 or 2, characterised in that the cladding-free areas (11) are formed by a roughly axial course of the tubes (7).
- Apparatus according to Claims 1 and 3, characterised in that the roughly axially running part-lengths (7a) of the tubes (7) are conducted in recesses (2a) of the internal wall (2).
- Apparatus according to at least one of Claims 1 to 4, characterised in that the part-region of the cylinder (1) lying between the front end of the jacketed cylinder (1) and the injection orifices (12) is formed at least as part of the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT91103777T ATE93950T1 (en) | 1990-04-19 | 1991-03-13 | DEVICE FOR GENERATION OF WATER VAPOR BY COMBINING HYDROGEN AND OXYGEN. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4012431A DE4012431C1 (en) | 1990-04-19 | 1990-04-19 | |
| DE4012431 | 1990-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0452672A1 EP0452672A1 (en) | 1991-10-23 |
| EP0452672B1 true EP0452672B1 (en) | 1993-09-01 |
Family
ID=6404630
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91103777A Expired - Lifetime EP0452672B1 (en) | 1990-04-19 | 1991-03-13 | Apparatus for steam production by combining oxygen and hydrogen |
| EP91105943A Expired - Lifetime EP0452839B1 (en) | 1990-04-19 | 1991-04-13 | Apparatus for steam production by combining oxygen and hydrogen |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91105943A Expired - Lifetime EP0452839B1 (en) | 1990-04-19 | 1991-04-13 | Apparatus for steam production by combining oxygen and hydrogen |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP0452672B1 (en) |
| AT (2) | ATE93950T1 (en) |
| DE (3) | DE4012431C1 (en) |
| ES (2) | ES2047353T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4083501A1 (en) | 2021-04-30 | 2022-11-02 | Siemens Energy Global GmbH & Co. KG | Combustion device for combustion of hydrogen and method for carrying out the combustion |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE397331A (en) * | ||||
| 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 (en) * | 1968-05-16 | 1970-08-10 | Siemens Ag | Injection cooler for steam power plants |
| US4211071A (en) * | 1978-05-19 | 1980-07-08 | Vapor Energy, Inc. | Vapor generators |
| DE3512947A1 (en) * | 1985-04-11 | 1986-10-16 | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn | METHOD FOR PRODUCING WATER VAPOR AND STEAM GENERATOR FOR CARRYING OUT THIS METHOD |
-
1990
- 1990-04-19 DE DE4012431A patent/DE4012431C1/de not_active Expired - Lifetime
-
1991
- 1991-03-13 EP EP91103777A patent/EP0452672B1/en not_active Expired - Lifetime
- 1991-03-13 ES ES91103777T patent/ES2047353T3/en not_active Expired - Lifetime
- 1991-03-13 DE DE91103777T patent/DE59100337D1/en not_active Expired - Fee Related
- 1991-03-13 AT AT91103777T patent/ATE93950T1/en not_active IP Right Cessation
- 1991-04-13 DE DE91105943T patent/DE59100338D1/en not_active Expired - Fee Related
- 1991-04-13 AT AT91105943T patent/ATE93951T1/en not_active IP Right Cessation
- 1991-04-13 ES ES91105943T patent/ES2045979T3/en not_active Expired - Lifetime
- 1991-04-13 EP EP91105943A patent/EP0452839B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0452839B1 (en) | 1993-09-01 |
| EP0452672A1 (en) | 1991-10-23 |
| ES2047353T3 (en) | 1994-02-16 |
| DE4012431C1 (en) | 1991-08-01 |
| ATE93951T1 (en) | 1993-09-15 |
| EP0452839A1 (en) | 1991-10-23 |
| ES2045979T3 (en) | 1994-01-16 |
| DE59100338D1 (en) | 1993-10-07 |
| ATE93950T1 (en) | 1993-09-15 |
| DE59100337D1 (en) | 1993-10-07 |
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