DE1124512B - Waste heat steam generator, especially for removing heat from the primary circuit of a nuclear reactor - Google Patents

Waste heat steam generator, especially for removing heat from the primary circuit of a nuclear reactor

Info

Publication number
DE1124512B
DE1124512B DEH35449A DEH0035449A DE1124512B DE 1124512 B DE1124512 B DE 1124512B DE H35449 A DEH35449 A DE H35449A DE H0035449 A DEH0035449 A DE H0035449A DE 1124512 B DE1124512 B DE 1124512B
Authority
DE
Germany
Prior art keywords
steam
hairpin
steam generator
waste heat
heat
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
DEH35449A
Other languages
German (de)
Inventor
Dipl-Ing Harald Hany
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.)
Henschel Werke GmbH
Original Assignee
Henschel Werke GmbH
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 Henschel Werke GmbH filed Critical Henschel Werke GmbH
Priority to DEH35449A priority Critical patent/DE1124512B/en
Publication of DE1124512B publication Critical patent/DE1124512B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/02Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/16Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
    • F22B1/162Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour in combination with a nuclear installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/02Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/023Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers with heating tubes, for nuclear reactors as far as they are not classified, according to a specified heating fluid, in another group

Description

Abhitze-Dampferzeuger, insbesondere zur Abführung der Wärme aus dem Primärkreislauf eines Kernreaktors Die Erfindung bezieht sich insbesondere auf kleine, gegebenenfalls mobile Kernkraftanlagen für die Erzeugung von elektrischem Strom durch einen Dampfturbogenerator. Der geschlossene Primärkreislauf des Reaktorkühlwassers und der Sekundärkreislauf für den Antrieb der Dampfturbine stehen hierbei aus Sicherheitsgründen nur mittelbar über einen Abhitze-Dampferzeuger miteinander in Verbindung. Dieser - bei einem Druckwasserreaktor - von den Druckwasser-Heizrohren durchzogene Abhitze-Dampferzeuger ist der Verdampfer im Sekundärkreis.Waste heat steam generator, especially for removing heat from the Primary circuit of a nuclear reactor The invention relates in particular to small, if necessary mobile nuclear power plants for the generation of electricity by a steam turbine generator. The closed primary circuit of the reactor cooling water and the secondary circuit for driving the steam turbine are here for safety reasons only indirectly connected to each other via a waste heat steam generator. This - in the case of a pressurized water reactor - the pressurized water heating pipes run through the waste heat steam generator is the evaporator in the secondary circuit.

Es ist bereits ein stehender zylindrischer Abhitze-Dampferzeuger für Kernkraftanlagen bekannt mit stehend angeordneten, einseitig geschlossenen Heizrohren, denen das Heizmittel durch das Rohrinnere zugeführt wird, zur Erhitzung, Verdampfung und Überhitzung des Arbeitsmittels im Sekundärkreislauf. Dieser Dampferzeuger weist aber nicht die bei gleichem Materialaufwand eine erheblich größere Heizfläche bietenden Haarnadelrohre auf und besitzt vor allem keinen Zwischenüberhitzer, so daß man ihm nicht die erfindungsgemäße, besonders vorteilhafte Gestaltung und Anordnung des Zwischenüberhitzers entnehmen kann.It is already a standing cylindrical waste heat steam generator for Nuclear power plants known with vertically arranged heating pipes closed on one side, to which the heating medium is fed through the inside of the pipe for heating, evaporation and overheating of the working fluid in the secondary circuit. This steam generator has but not the one that offers a considerably larger heating surface with the same amount of material Hairpin pipes on and, above all, has no reheater, so you can use it not the inventive, particularly advantageous design and arrangement of the Reheater can be taken.

Andere bekannte stehende zylindrische Abhitze-Dampferzeuger weisen zwar haarnadelförmig gebogene, stehend angeordnete Heizrohre auf, besitzen aber weder einen überhitzer noch einen Zwischenüberhitzer im selben Druckbehälter.Other known standing cylindrical waste heat steam generator have heating pipes that are bent in the shape of a hairpin and arranged in an upright position, but they have neither a superheater nor a reheater in the same pressure vessel.

Der Erfindung liegt nun die Aufgabe zugrunde, einen derartigen Abhitze-Dampferzeuger mit einem im selben Druckbehälter angeordneten überhitzer und Zwischenüberhitzer bei guter Raumausnutzung im Druckbehälter und besonders kleinem technischen Aufwand zu schaffen. Demgemäß ist in der Mitte des Naßdampfraumes ein Haarnadelrohr-Zwischenüberhitzer vorgesehen und wird der von Haarnadelrohren beheizte Erstüberhitzer ringförmig und konzentrisch dazu angeordnet.The invention is now based on the object of such a waste heat steam generator with a superheater and reheater arranged in the same pressure vessel with good use of space in the pressure vessel and particularly little technical effort to accomplish. Accordingly, there is a hairpin tube reheater in the middle of the wet steam space provided and the first superheater heated by hairpin tubes is ring-shaped and arranged concentrically to it.

Nach der Erfindung wird eine weitere Verbesserung der Wärmeausnutzung dadurch erzielt, daß der Dampf nach Arbeitsleistung im Hochdruckteil der Turbine dem Abhitze-Dampferzeuger erneut zugeleitet und in einem zentral im Druckbehälter angeordneten Haarnadelrohr-Zwischenüberhitzer durch den Naßdampf und das siedende Wasser des Sekundärkreises überhitzt wird. Die indirekte Wärmeübertragung vom Heizmittel zum Zwischendampf und die zentrale Anordnung ergeben hierbei eine besonders günstige Raumausnutzung und einen sehr kleinen baulichen Aufwand. In der Zeichnung ist der Dampferzeuger nach der Erfindung schematisch dargestellt.According to the invention, there is a further improvement in the utilization of heat achieved in that the steam after work in the high pressure part of the turbine fed back to the waste heat steam generator and in a central location in the pressure vessel arranged hairpin tube reheater through the wet steam and the boiling Secondary circuit water is overheated. The indirect heat transfer from the heating medium to the intermediate steam and the central arrangement result in a particularly favorable one Use of space and a very small structural effort. In the drawing is the Steam generator according to the invention shown schematically.

Der Verdampfer 1, der überhitzer 2 und der Zwischenüberhitzer 3 sind in einem lotrecht stehenden Druckbehälter zusammengefaßt. Den Ringkammern 4 fließt das Druckwasser aus dem Reaktor zu und durchströmt die haarnadelartigen Heizrohre 5. Aus den Sammelringkammern 6 wird dann das Primärwasser nach Wärmeabgabe durch die Heizrohre 5 über eine nicht gezeichnete Druckwasserumwälzpumpe dem Reaktor wieder zugeführt. Der vom Wasser im oberen Domteil des Druckbehälters nicht berührte Teil der Heizrohre 5 dient der Überhitzung des im Verdampfer erzeugten Dampfes, der durch den Dampfaustritt 7 dem Hochdruckteil der Turbine zugeleitet wird.The evaporator 1, the superheater 2 and the reheater 3 are combined in a vertical pressure vessel. The pressurized water from the reactor flows to the annular chambers 4 and flows through the hairpin-like heating tubes 5. From the collecting ring chambers 6, the primary water is then returned to the reactor after heat is given off through the heating tubes 5 via a pressurized water circulation pump (not shown). The part of the heating pipes 5 not touched by the water in the upper dome part of the pressure vessel is used to superheat the steam generated in the evaporator, which is fed through the steam outlet 7 to the high-pressure part of the turbine.

Um trotz des niedrigen Wärmegefälles zwischen Primärwasser und Kesseldampf die vorgesehene Überhitzung des Dampfes zu erreichen, sind im Primär-Überhitzerteil eine Anzahl übereinanderliegender Lenkwände 9 eingebaut, die den Dampf zwingen, mit hoher Geschwindigkeit im Querstrom die Heizrohre zu umfließen.In order to achieve the intended overheating of the steam despite the low heat gradient between primary water and boiler steam, a number of superimposed guide walls 9 are installed in the primary superheater part, which force the steam to flow around the heating pipes at high speed in cross-flow.

Im Druckbehälter ist zentral ein Zwischenüberhitzer 3 eingebaut, der ebenfalls aus einer Anzahl von haarnadelartigen, hängenden Rohren 8 besteht. Diesem Zwischenüberhitzer wird der Dampf nach Durchströmen des Hochdruckteils der Turbine zugeführt und nach der Zwischenüberhitzung in den Niederdruckteil der Turbine eingeleitet. Die Heizfläche des Zwischenüberhitzers liegt überwiegend im siedenden Wasser des Verdampfers, im übrigen im Naßdampfraum.A reheater 3, which also consists of a number of hairpin-like, hanging pipes 8, is installed centrally in the pressure vessel. The steam is fed to this reheater after flowing through the high-pressure part of the turbine and, after reheating, is introduced into the low-pressure part of the turbine. The heating surface of the reheater is mainly in the boiling water of the evaporator, otherwise in the wet steam room.

Claims (2)

PATENTANSPRÜCHE: 1. Stehender zylindrischer Abhitze-Dampferzeuger, insbesondere zur Abführung der Wärme aus dem Primärkreislauf eines Kernreaktors, mit haarnadelförmig gebogenen, stehend angeordneten Heizrohren zur Erhitzung, Verdampfung und Überhitzung des Arbeitsmittels, mit im Dampfraum angeordnetem Erstüberhitzer, bestehend aus den über den Wasserspiegel nach oben verlängerten Heizrohren und Lenkwänden zur Zickzackführung des Dampfes um die Heizrohre, dadurch gekennzeichnet, daß in der Mitte des Naßdampfraumes ein Haarnadelrohr-Zwischenüberhitzer (3) und ringförmig und konzentrisch dazu der von Haarnadelrohren beheizte Erstüberhitzer (2) angeordnet ist. PATENT CLAIMS: 1. Vertical cylindrical waste heat steam generator, in particular for the removal of heat from the primary circuit of a nuclear reactor, with hairpin-shaped, vertical heating pipes for heating and evaporation and overheating of the working medium, with the first superheater arranged in the steam room, consisting of the heating pipes and steering walls extended upwards above the water level for zigzag guiding the steam around the heating pipes, characterized in that in in the middle of the wet steam room a hairpin tube reheater (3) and ring-shaped and the primary superheater (2), which is heated by hairpin tubes, is arranged concentrically therewith is. 2. Abhitze-Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß die haarnadelförmigen Zwischenüberhitzerrohre (8) vom Naßdampfraum aus weit in den Siedewasserraum hineinreichen. In Betracht gezogene Druckschriften: Deutsche Auslegeschrift Nr. 1048 595; britische Patentschrift Nr. 762 548; »Brennstoff-Wärme-Kraft«, B. Jahrgang, Nr.11, 1956, S. 555; »The Steam Engineer«, Dezember 1955, S. 91; »Power«, Februar 1958, S. 83.2. Waste heat steam generator according to claim 1, characterized in that the hairpin-shaped Reheater pipes (8) extend far into the boiling water area from the wet steam room. Documents considered: German Auslegeschrift No. 1048 595; British U.S. Patent No. 762,548; "Fuel-Heat-Power", B. Volume, No. 11, 1956, p. 555; The Steam Engineer, December 1955, p. 91; "Power", February 1958, p. 83.
DEH35449A 1959-01-26 1959-01-26 Waste heat steam generator, especially for removing heat from the primary circuit of a nuclear reactor Pending DE1124512B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH35449A DE1124512B (en) 1959-01-26 1959-01-26 Waste heat steam generator, especially for removing heat from the primary circuit of a nuclear reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH35449A DE1124512B (en) 1959-01-26 1959-01-26 Waste heat steam generator, especially for removing heat from the primary circuit of a nuclear reactor

Publications (1)

Publication Number Publication Date
DE1124512B true DE1124512B (en) 1962-03-01

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DEH35449A Pending DE1124512B (en) 1959-01-26 1959-01-26 Waste heat steam generator, especially for removing heat from the primary circuit of a nuclear reactor

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462339A (en) * 1983-08-29 1984-07-31 Texaco Development Corporation Gas cooler for production of saturated or superheated steam, or both
US4488513A (en) * 1983-08-29 1984-12-18 Texaco Development Corp. Gas cooler for production of superheated steam
EP1219892A1 (en) * 2000-12-14 2002-07-03 Borsig GmbH Heat recovery boiler for cooling hot synthesis gas

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048595B (en) * 1956-10-08
GB762548A (en) * 1954-04-22 1956-11-28 Springfield Boiler Co Improvements in and relating to steam generators of the indirectly-heated kind

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB762548A (en) * 1954-04-22 1956-11-28 Springfield Boiler Co Improvements in and relating to steam generators of the indirectly-heated kind
DE1048595B (en) * 1956-10-08

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462339A (en) * 1983-08-29 1984-07-31 Texaco Development Corporation Gas cooler for production of saturated or superheated steam, or both
US4488513A (en) * 1983-08-29 1984-12-18 Texaco Development Corp. Gas cooler for production of superheated steam
EP1219892A1 (en) * 2000-12-14 2002-07-03 Borsig GmbH Heat recovery boiler for cooling hot synthesis gas

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