DE2913520A1 - Stored fuel element heat recovery - by ammonia circulating through evaporator, turbine- and condenser - Google Patents

Stored fuel element heat recovery - by ammonia circulating through evaporator, turbine- and condenser

Info

Publication number
DE2913520A1
DE2913520A1 DE19792913520 DE2913520A DE2913520A1 DE 2913520 A1 DE2913520 A1 DE 2913520A1 DE 19792913520 DE19792913520 DE 19792913520 DE 2913520 A DE2913520 A DE 2913520A DE 2913520 A1 DE2913520 A1 DE 2913520A1
Authority
DE
Germany
Prior art keywords
heat
plant according
energy
evaporator
condenser
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.)
Granted
Application number
DE19792913520
Other languages
German (de)
Other versions
DE2913520C2 (en
Inventor
Hans-Hermann Dipl In Ingwersen
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.)
ALFA LAVAL INDUSTRIETECHNIK GmbH
Alfa Laval Industrietechnik GmbH
Original Assignee
ALFA LAVAL INDUSTRIETECHNIK GmbH
Alfa Laval Industrietechnik 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 ALFA LAVAL INDUSTRIETECHNIK GmbH, Alfa Laval Industrietechnik GmbH filed Critical ALFA LAVAL INDUSTRIETECHNIK GmbH
Priority to DE2913520A priority Critical patent/DE2913520C2/en
Publication of DE2913520A1 publication Critical patent/DE2913520A1/en
Application granted granted Critical
Publication of DE2913520C2 publication Critical patent/DE2913520C2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/02—Details of handling arrangements
    • G21C19/06—Magazines for holding fuel elements or control elements
    • G21C19/07—Storage racks; Storage pools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Surplus heat form nuclear fuel elements which are stored in an intermediate storage basin is recovered by circulating a heat carrier agent such as NH3, which boils at low temp., by a pump through an evaporator, suspended inside the basin. The vapours, produced by it, are passed to a prime mover such as a turbine for conversion into mechanical work. The agent is liquefied in a condenser and is returned by the pump to the evaporator. Such a system is independent of any extraneous energy input. It operates profitability and helps to reduce the intermediate storage costs.

Description

Anlage zur Abfuhr von überschußwarme aus ZwischenlagerbeckenSystem for the removal of excess heat from the intermediate storage basin

für nukleare Brennelemente Die Erfindung bezieht sich auf eine Anlage zur Abfuhr von Wörme aus wassergefüllten Becken, in denen verbrauchte nukleare Brennelemente aus Kernkraftwerken bis zu ihrer Wiederaufbereitung zwischengelagert werden ohne, daß von außen Hilfsenergie für den Betrieb von Umwälzeinrichtungen und Küblaggregaten benätigt wi rd.for nuclear fuel elements The invention relates to a plant for the removal of heat from water-filled basins in which spent nuclear fuel elements from nuclear power plants are temporarily stored until they are reprocessed without, that from the outside auxiliary energy for the operation of circulation devices and Küblaggregaten is required

Solche Brennelement- Zwischenlager befinden sich in Kernkaftwerken oder werden in zentralen Sammel- oder Aufbereitungsanlagen erstellt. Die von den noch strahlenden Brennelementen währand des Abklingens der Kernspaltung freigesetzte Restwäme ist nicht unerheblich und wird durch kontinuierliche Külung des sie umgebenden, unter atmosphärischem Druck stahenden Beckenwassers über Wärmeaustauscher an die Umgebung abgeführt.Such fuel element interim storage facilities are located in nuclear power plants or are created in central collection or processing plants. The ones from the emitting fuel elements that were still released during the decay of the nuclear fission Residual heat is not insignificant and is caused by continuous cooling of the surrounding, pool water under atmospheric pressure via heat exchangers to the Environment dissipated.

Die Umwälzung der Kühlmedien und der Antrieb von Hilfseinrichtungen erfordert einen hohen Energieaufwand. Dieser kann aus dem Netz der öffentlichen Stromversorgung entnommen werden oder in Not- bzw. Krisenfällen aus anlageneigenen Notstromaggregaten mit Antrieb über Verbrennungsmotore gedeckt werden.The circulation of the cooling media and the drive of auxiliary equipment requires a lot of energy. This can be from the network of the public Power supply can be taken or, in emergencies or crises, from the plant's own Emergency power generators with drive via internal combustion engines are covered.

In besonders kritischen Situationen muß aber auch mit dem Mangel an flüssigen oder gasförmigen Brennstoffen gerechnet werden.In particularly critical situations, however, there must also be a lack of liquid or gaseous fuels are expected.

Bei Ausfall der gesamten Energieversorgung und der damit einhergehenden Unterbrechung der Lagerbeckenkühlung kann die Beckenwassertemperatur unzulässig hoch ansteigen, so daß es schließlich siedet,. verdampft und in die Umgebung entweicht. Eine Nachspeisung des verlorenen Beckenwassers ist unter diesen Umständen nicht möglich. Der Schutz vor radioaktiver Strahlung bricht zusammen und es kann ein verstarkter Neutronenstrom zwischen den eingelagerten Brennelementen auftreten.In the event of failure of the entire energy supply and the associated Interruption of the storage pool cooling can make the pool water temperature impermissible rise high so that it finally boils. evaporates and escapes into the environment. A replenishment of the lost pool water is not possible under these circumstances possible. The protection against radioactive radiation breaks down and it can be reinforced Neutron fluxes occur between the stored fuel elements.

Es gibt Vorschläge, die Beckenwasserwärme über Kühlsysteme, deren Medien durch freie Konvektion in Umlauf gehalten werden.There are suggestions that the pool water heat via cooling systems, whose Media are kept in circulation by free convection.

an die Umgebung abzuführen. Diese Lösungen erfordern einen schr hohen apparatetechnischen und baulichen Aufwand.dissipate to the environment. These solutions require a tremendous amount technical equipment and structural effort.

Der Erfindung liegt nun die Aufgabe zugrunde, die in Brennelementbecken freiwerdende Wärmemenge sicher abzuführen und in einem Kreisprozeß zur Energieerzeugung heranzuzichen, deran Ergiebigkeit ausreicht, alle Hilfsantriebe für einen sicheren Kühlbetrieb zu versorgen und das nukleare Zwischenlager von einer Enerqiezufuhr von außen unabhängig zu machen.The invention is based on the object in fuel pool Released heat to dissipate safely and in a cycle for energy generation to draw on, the yield is sufficient, all auxiliary drives for a safe To supply cooling operation and the nuclear interim storage facility from an energy supply to make it independent from the outside.

Diese Aufgabe wird dadurch gelöst, daß in einem Kreisprozeß ein bei niedriger Temperatur siedender Warmeträger (z.B. Ammoniak) eingesetzt wird. Eine Speisepumpe (1) fördert den Warmeträger durch den in das Lagerbecken eingehängten Verdampfer (2) zu einer Warmekaftmaschine (3). Hier wird die aus dem Beckenwasser zur Verdampfung des Wärmeträgers abgezogene Wärme in mechanische Arbeit umgewandelt. Die Wärmeabfuhr erfolgt dann einer einer Kondensator (4). Das verflüssigte Arbeitsmittel fließt vor die Speisepumpe zuricI:.This object is achieved in that a in a circular process low-temperature boiling heat carriers (e.g. ammonia) are used. One Feed pump (1) conveys the heat transfer medium through the one suspended in the storage basin Evaporator (2) to a thermal machine (3). This is where the pool water comes from Heat withdrawn to evaporate the heat transfer medium is converted into mechanical work. The heat is then dissipated in a condenser (4). The liquefied working medium flows back upstream of the feed pump :.

Der Vorteil der Erfindung liegt in der Unabhängigkeit eines nuklearen Zwischenlagers von einer Energiezufuhr von außen.The advantage of the invention lies in the independence of a nuclear Intermediate storage from an external energy supply.

Ein weiterer Vorteil der Erfindung ist die Wirtschaftlichkeit einer solchen Kähleinrichtung, die nicht nur in Notfällen, sondern auch unter normalen Bedingungen betrieben werden könnte.Another advantage of the invention is the economics of a such a culling device that works not only in emergencies but also under normal Conditions could be operated.

Die Betriebskosten eines nuklearen Zwischenlagers ließen sich so nicht unwesentlich senken.The operating costs of a nuclear interim storage facility could not be reduced in this way decrease insignificantly.

Claims (9)

Ansprüche 1. Anlage zur Abfuhr von Oberschußwärme aus nuklearen Brennelement-Zwischenlagerbecken ohne Energiezufuhr fär Umwalz- und Kühlaggregate von außen mit einer Speisepumpe, einem Verdampfer, eiiner Wärmekraftmaschine und einem Kondensator d a d u r c h g e k e n nzeichnet, daß als Kühlmedium ein bei niedriges Temperaturen siedendes Arbeitsmittel verwendet wird, das in einem Kreis-Prozeß die aus dem Lagerbecken abgeführte Warme in einer Warmekraftmaschine in mechanische oder elektrische Arbeit umwandelt.Claims 1. System for the removal of excess heat from nuclear fuel assembly interim storage pools without energy supply for circulating and cooling units from the outside with a feed pump, an evaporator, a heat engine and a condenser d u r c h g e k e n n indicates that a cooling medium that boils at low temperatures is used as a cooling medium Work equipment is used in a circular process that comes from the storage pool Heat dissipated in a heat engine into mechanical or electrical work converts. 2. Anlage nach Anspruch 1 mit ein m kiohlwasser- odar luftbeaufschlagtem Kondensator d a d u r c h g e k e n n z e i c h n e t, daß je nach Aufstellungsart eine umweltunabhangige Warmeabfuhr an die Umgebung erfolgen kann.2. Plant according to claim 1 with a m kiohlwasser- odar luftbeaufschlagtem Capacitor d a d u r g e k e n n n z e i c h n e t that, depending on the type of installation an environmentally independent heat dissipation to the environment can take place. 3. Anlage nach Anspruch 1 mit einem oder mchreren parallel geschalteten Verdampfern d a d u r c h g e k e n n z e i c h n e t, daß die Kühlleistung der abzuführenden Wärmemenge angepaßt werden kann.3. Plant according to claim 1 with one or more connected in parallel Evaporators do not show that the cooling capacity of the the amount of heat to be dissipated can be adjusted. 4. Anlage nach Anspruch 1 mit einer elektrisch angetriebenen Speisepumpe dadurch gekennzeichnet, ciaß di a elektrische Energie aus dem Kreisprozeß der Anlage selbst stammt.4. System according to claim 1 with an electrically driven feed pump characterized in that ciaß di a electrical energy from the cycle of the plant itself comes from. 5. Anlage naci Anspruch 1 mit einer mechanische angetri ebenen Speisepumpe d a d u r c h g e k e n n z e i c h n e t, daß die mechanische Energie von einer Warmekraftmaschine des Kreisprozesses selbst angetrieben wird.5. Plant according to claim 1 with a mechanical driven planar feed pump d u r c h e k e n n n z e i c h n e t that the mechanical energy of a Heat engine of the cycle itself is driven. 6. Anlage nach Anspruch 1 mit aus Sicherheitsgränden zwei parallel geschalteten, voneinander unabhangigen Kreisläufen dadurch gekennzeichnet, daß die Verdampfer so ineinander geschachtelt werden, daß auch bei Betrieb nur eineslaufes eine über den Ouerschnitt gleichmäßige Abkäblung des zirkulierenden Beckenwassers moglich ist.6. Plant according to claim 1 with two in parallel for safety reasons switched, independent circuits characterized in that the Evaporators can be nested in one another in such a way that only one run, even when in operation a calving of the circulating pool water evenly over the cross section is possible. 7. Anlage nach Anspruch 1 mit einem oder mehreren au3erhalb des Becken liegenden Verdampfern dadurcii gekennzeichnet, daß das Beckenwasser nicht in frei er Konvektion di Verdampferbeizflächen umspült, sondern im Zwangdurchl auf durch cifeseZs System gefordert wird mit Hilfe von Fördereinrichtungen, die ihre Antriebsenergie aus dem System selbst erhalten.7. Plant according to claim 1 with one or more outside the basin lying evaporators dadurcii characterized that the pool water is not in free he convection flows around the evaporator pickling surfaces, but in forced flow through cifeseZs system is challenged with the help of funding devices that provide their drive energy obtained from the system itself. 8. Anlage nach Anspruch 1 mit einem flüssigkeits-(Wasser) beaufschlagten Kondensator, dessen Wärme indirekt an die Umgabung über einen zweiten wasser- oder luftbeaufschlagten Kählkreislauf abgegeben wird d a d u r c h g e k e n n z e i c h n e t, daß das Kählmedium aus der Umgebung, Wasser oder Luft, unter Einsatz der im Kählsystem erzeugten Eigenenergie, elektrisch oder mechanisch, angetrieben wird. 8. Plant according to claim 1 with a liquid (water) acted upon Condenser, the heat of which is indirectly transferred to the surroundings via a second water or air-pressurized cooling circuit is released d u r c h e k e n n z e i c h n e t that the cooling medium from the environment, water or air, is used The self-generated energy generated in the cooling system, electrically or mechanically, is driven will. 9. Anlage nach Anspruch 1 in der mehr elektrische Energie erzeugt wird, als für die Vesorgung der Hilfsantriebe benötigt Wird d a d u r c h g e k e n n z e i c h n e t, daß diese elektrische Energie nach außen abgeführt, ein Mittel der indirekten Energieabführ aus dem Lagerbecken dient.9. Plant according to claim 1 in which more electrical energy is generated than is required for supplying the auxiliary drives It is noted that this electrical energy is dissipated to the outside, a means is used for indirect energy dissipation from the storage pool.
DE2913520A 1979-04-04 1979-04-04 Method and device for removing heat from a storage room for the interim storage of spent nuclear fuel elements Expired DE2913520C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2913520A DE2913520C2 (en) 1979-04-04 1979-04-04 Method and device for removing heat from a storage room for the interim storage of spent nuclear fuel elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2913520A DE2913520C2 (en) 1979-04-04 1979-04-04 Method and device for removing heat from a storage room for the interim storage of spent nuclear fuel elements

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DE2913520A1 true DE2913520A1 (en) 1980-10-09
DE2913520C2 DE2913520C2 (en) 1983-10-06

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012145406A2 (en) * 2011-04-18 2012-10-26 Holtec International, Inc. Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and methods of the same
WO2014020091A1 (en) * 2012-07-31 2014-02-06 Areva Gmbh Heat removal system for a nuclear system
CN104541331A (en) * 2012-08-01 2015-04-22 阿海珐有限公司 Containment protection system for a nuclear facility and associated operating method
US9786395B2 (en) 2011-04-25 2017-10-10 Holtec International, Inc. Air-cooled heat exchanger and system and method of using the same to remove waste thermal energy from radioactive materials
US20210225537A1 (en) * 2008-04-29 2021-07-22 Holtec International Neutron absorbing apparatus
US11504814B2 (en) 2011-04-25 2022-11-22 Holtec International Air cooled condenser and related methods
US11541484B2 (en) 2012-12-03 2023-01-03 Holtec International Brazing compositions and uses thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107284A1 (en) * 2011-07-06 2013-01-10 Rwe Technology Gmbh Device for emergency cooling of a plant for exothermic processes
CN105280250A (en) * 2015-09-15 2016-01-27 西安交通大学 Non-active cooling system and method used for steam generator and spent fuel pool

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078701B (en) * 1959-04-11 1960-03-31 Henschel Werke G M B H Transport container for irradiated fuel elements
DE1169598B (en) * 1960-08-06 1964-05-06 Nikolaus Bakos Transport container for irradiated elements of a nuclear reactor
DE1764450A1 (en) * 1967-06-07 1972-03-23 Commissariat Energie Atomique Electromagnetic pump with thermoelectric circuit
DE2711405A1 (en) * 1977-03-16 1978-09-21 Nukem Gmbh METHOD AND DEVICE FOR STORING IRRADIATED OR. BURN-OUT FUEL ELEMENTS FROM PRESSURE WATER AND BOILING WATER NUCLEAR REACTORS
DE2816313A1 (en) * 1977-04-22 1978-11-02 Messier Sa DEVICE FOR THE STORAGE OF RADIOACTIVE WASTE AND FOR THE RECOVERY OF THE PARASITIC HEAT GIVEN BY THEM
DE2730729A1 (en) * 1977-07-07 1979-01-25 Nukem Gmbh Spent fuel element storage esp. for thorium high temp. reactor - is sealed vessels inside air-cooled chamber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078701B (en) * 1959-04-11 1960-03-31 Henschel Werke G M B H Transport container for irradiated fuel elements
DE1169598B (en) * 1960-08-06 1964-05-06 Nikolaus Bakos Transport container for irradiated elements of a nuclear reactor
DE1764450A1 (en) * 1967-06-07 1972-03-23 Commissariat Energie Atomique Electromagnetic pump with thermoelectric circuit
DE2711405A1 (en) * 1977-03-16 1978-09-21 Nukem Gmbh METHOD AND DEVICE FOR STORING IRRADIATED OR. BURN-OUT FUEL ELEMENTS FROM PRESSURE WATER AND BOILING WATER NUCLEAR REACTORS
DE2816313A1 (en) * 1977-04-22 1978-11-02 Messier Sa DEVICE FOR THE STORAGE OF RADIOACTIVE WASTE AND FOR THE RECOVERY OF THE PARASITIC HEAT GIVEN BY THEM
DE2730729A1 (en) * 1977-07-07 1979-01-25 Nukem Gmbh Spent fuel element storage esp. for thorium high temp. reactor - is sealed vessels inside air-cooled chamber

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210225537A1 (en) * 2008-04-29 2021-07-22 Holtec International Neutron absorbing apparatus
US11569001B2 (en) 2008-04-29 2023-01-31 Holtec International Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials
US20180023423A1 (en) * 2011-04-18 2018-01-25 Holtec International Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and method of the same
US9803510B2 (en) 2011-04-18 2017-10-31 Holtec International Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and method of the same
WO2012145406A2 (en) * 2011-04-18 2012-10-26 Holtec International, Inc. Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and methods of the same
US10472996B2 (en) 2011-04-18 2019-11-12 Holtec International Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and method of the same
WO2012145406A3 (en) * 2011-04-18 2014-05-01 Holtec International, Inc. Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials, and methods of the same
US9786395B2 (en) 2011-04-25 2017-10-10 Holtec International, Inc. Air-cooled heat exchanger and system and method of using the same to remove waste thermal energy from radioactive materials
US10854344B2 (en) 2011-04-25 2020-12-01 Holtec International Air-cooled heat exchanger and system and method of using the same to remove waste thermal energy from radioactive materials
US11504814B2 (en) 2011-04-25 2022-11-22 Holtec International Air cooled condenser and related methods
WO2014020091A1 (en) * 2012-07-31 2014-02-06 Areva Gmbh Heat removal system for a nuclear system
CN104541331A (en) * 2012-08-01 2015-04-22 阿海珐有限公司 Containment protection system for a nuclear facility and associated operating method
US11541484B2 (en) 2012-12-03 2023-01-03 Holtec International Brazing compositions and uses thereof

Also Published As

Publication number Publication date
DE2913520C2 (en) 1983-10-06

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