DE2538255A1 - Radioactive or toxic materials release prevented after accident - by intentional discharge into foam-forming materials - Google Patents

Radioactive or toxic materials release prevented after accident - by intentional discharge into foam-forming materials

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Publication number
DE2538255A1
DE2538255A1 DE19752538255 DE2538255A DE2538255A1 DE 2538255 A1 DE2538255 A1 DE 2538255A1 DE 19752538255 DE19752538255 DE 19752538255 DE 2538255 A DE2538255 A DE 2538255A DE 2538255 A1 DE2538255 A1 DE 2538255A1
Authority
DE
Germany
Prior art keywords
foam
substances
dangerous
radioactive
valves
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.)
Withdrawn
Application number
DE19752538255
Other languages
German (de)
Inventor
Guenter Morlock
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19752538255 priority Critical patent/DE2538255A1/en
Publication of DE2538255A1 publication Critical patent/DE2538255A1/en
Withdrawn legal-status Critical Current

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Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/001Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Bursting discs, press. responsive valves or similar discharge devices are provided on the equipment which contains the dangerous substances. The discharge devices lead into discharge pipes, which are connected to receiving vessels. The receiving vessels contain foam-forming substances so that, if a discharge of a dangerous substance takes plate into a receiving vessel, foam is produced by the dangerous substance with or without the assistance of a foaming agent. The dangerous substance thus remains imprisoned in the foam as it hardens.

Description

Vorrichtung zur Verhinderung unzulässig bohe r Freisetzien von efährlichenz,B. giftigen, radioaktiven, an Luft reagierenden oder dergleichen Stoffen aus technischen Anlagen nach Störfällen.Device to prevent unacceptable releases of dangerous substances, B. toxic, radioactive, air-reactive or similar substances from technical Systems after accidents.

Bei technischen Anlagen, die gefährliche Stoffe enthalten, kann eine Freisetzung dieser Stoffe in die Umwelt mit Personen und/ oder Sachschäden verbunden sein, die mit der beschriebenen Vorrichtung verhindert werden sollen.In the case of technical systems that contain dangerous substances, a Release of these substances into the environment is associated with personal injury and / or property damage be that are to be prevented with the device described.

Es ist bekannt, daß bei technischen Anlagen mit sehr großem Sicherheitsaufwand wie z.B. kerntechnischen Anlagen bedeutende Anstrengungen zur Verhinderung unzulässig hoher Freisetzungen von radioaktiven Stoffen unternommen werden.It is known that in technical systems with a very high level of safety such as nuclear facilities, significant efforts to prevent them are not permitted high releases of radioactive substances are undertaken.

Vielfache Barrieren verhindern im Ä'ormalbetrieb unzulässig hohe Freisetzungen von radioaktiven Stoffen an die Umwelt.Multiple barriers prevent unacceptably high releases during normal operation of radioactive substances to the environment.

In oder nach Störfällen sorgen redundante und diversitsre Sicherheitssysteme für den Erhalt und das Funktionieren der noch intakten Barrieren, die damit bei allen bisher nach dem Stand der Technik anzunen-rnenden Störfällen eine unzulässig hohe Freisetzung von radioaktiven Stoffen an die Umwelt verhindern sollen. Aber in jüngster Zeit werden auch hypothetische Störfälle diskutiert, die zwar eine große Auswirkung auf die Umgebung haben können, aber wegen ihrer sehr niedrigen Eintxttswahrscheinlichkeit bei allen bisherigen Standorten keinen merklichen Risikobeitrag liefern ( Rasmussen-Studie, Wash-1400 ).In or after incidents, redundant and diverse safety systems ensure for the preservation and functioning of the barriers that are still intact all incidents that were previously to be assumed according to the state of the art, one is inadmissible to prevent high levels of radioactive material being released into the environment. but Recently, hypothetical accidents have also been discussed, although a large one Can have an impact on the environment, but because of their very low probability of text do not provide a noticeable risk contribution at any of the previous locations (Rasmussen study, Wash-1400).

Mit der sich abzeichnenden Anderung der Sicherheitsphilosophie vom GaU-Konzept zur probabilistischen Betrachtungsweise ergeben sich für stadtnahe Kernkraftwerksstandorte verschärfte Sicherheitsanforderungen.With the emerging change in the security philosophy from GaU concept for the probabilistic approach result for nuclear power plant locations close to cities stricter security requirements.

Dadurch werden neue, bisher noch nicht vorgeschlagene, technische Entwicklungen erforderlich, mit denen diese Anforderungen erfüllt werden können.This creates new, not yet proposed, technical Developments are required to meet these requirements.

Das Hauptanliegen dieser verschärften Sicherheitsanforderungen -- nämlich die Verhinderung unzulässig hoher Abgaben von radioaktiven Stoffen an die Umwelt nach Störfällen -- deckt sich gleichzeitig mit Sicherheitsanforderungen an andere technische Anlagen z.B. in der Großchemie, wo unzulässig hohe Abgaben von gefährlichen, z . B. giftigen oder an Luft reagierenden Stoffen verhindert werden sollen.The main concern of these tightened security requirements - namely the prevention of inadmissibly high releases of radioactive substances Fabrics to the environment after accidents - at the same time corresponds to safety requirements to other technical systems, e.g. in large-scale chemistry, where inadmissibly high levies of dangerous, e.g. B. toxic or air-reactive substances can be prevented should.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zu entwickeln, mit der unzulässig hohe Abgaben von gefährlichen S!offen verhindert werden können. Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die gefährliche Stoffe enthaltenden Einrichtungen Durchlässe, z.B. auf Überdruck reagierende Solibruchstellen oder Ventile besitzen, die durch geeignete Zuleitungen mit Behältern verbunden sind, die mit solchen schaumbildenden Substanzen gefüllt sind, daß die gefährli chen Stoffe im Falle des Berstens der Sollbruchstellen oder des Öffnens der Ventile zusätzlich zu einem Treibgas oder als alleiniges Treibgas in dem dan aus den schaumbildenden Substanzen entstehenden, aushärtenden Schaum eingeschlossen werden.The invention is based on the object of developing a device with which inadmissibly high emissions of dangerous S! can be openly prevented. The object is achieved according to the invention in that the dangerous substances containing Equipment Passages, e.g. Sol rupture points or valves that react to excess pressure have, which are connected by suitable lines to containers with such foam-forming substances are filled that the dangerous substances in the In addition, if the predetermined breaking points burst or the valves open to a propellant gas or as the sole propellant gas in the dan from the foam-forming Substances arising, hardening foam are included.

Nach einer weiteren Ausbildung der Erfindung sind zwischen den Durchlässen, z.B. auf Uberdruck reagierenden Sollbruchstellen oder Ventilen und den Behältern l5lasservorlagen geschaltet.According to a further embodiment of the invention are between the passages, E.g. predetermined breaking points reacting to excess pressure or valves and the containers l5lassvorlagen switched.

Nach einer weiteren Ausbildung der Erfindung ist für den sich bildenden, aushärtenden Schaum eine aus begrenzenden Wänden z.B.According to a further embodiment of the invention is for the developing, hardening foam consisting of confining walls e.g.

Erdwällen gebildete Auffangwanne vorgesehen, Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß selbst bei Eintritt eines sehr unwahrscheinlichen, hypothetischen Störfalls mit Spaltproduktfreisetzung eine unzulässig hohe Abgabe von radioaktiven Stoffen aus kerntechnischen Anlagen an die Umwelt verhindert oder entscheidend reduziert werden kann, da die radioaktiven Stoffe im sich bildenden, aushärtenden Schaum eingeschlossen werden.Earthwalls formed drip pan provided with the invention achievable advantages are in particular that even when one occurs a very unlikely, hypothetical accident with the release of fission products Inadmissibly high release of radioactive substances from nuclear facilities to the Environment can be prevented or significantly reduced because the radioactive substances be included in the forming, hardening foam.

Analog werden bei sonstigen technischen Anlagen giftige oder mit Luft reagierende Stoffe nicht in unzulässiger Menge freigesetzt.In the same way, other technical systems become toxic or with air Reactive substances not released in impermissible quantities.

Nach einer weiteren Ausbildung der Erfindung können zwischengeschaltete Wasservorlagen besonders für Wasserdampf druckreduzierend wirken und lösliche oder schwerflüchtige Stoffe ganz oder teilweise zurückhalten; ebenso ermöglicht die vorgesehene Auffangwanne eine vorgeplante Deponierung des entstehenden Schaums.According to a further embodiment of the invention, intermediaries can Water reservoirs, especially for water vapor, have a pressure-reducing effect and soluble or hold back partially or completely non-volatile substances; also allows the provided A collecting basin a pre-planned landfill of the resulting foam.

Claims (3)

PatentansprücheClaims Vorrichtung zur Verhinderung unzulässig hoher Frei setzungen von gefährlichen, z*BO giftigen, radioaktiven, an Luft reagierenden oder dergleichen Stoffen aus technischen Anlagen nach Störfällen, dadurch gekennzeichnet, daß die gefährliche Stoffe enthalterlden Binrichtllngen Durchlässe , z.lJ. auf Überdruck reagierende Sollbruehsbellen oder Ventile besitzen, die durch geeignete Zuleitungen mit Behältern verbunden sind, die mit solchen schaumbildenden Substanzen gefüllt sind, daß die gefährlichen Stoffe im Falle des Berstens der Sollbruchstellen oder des Öffnens der Ventile zusätzlich zu einem Treibgas oder als alleiniges Treibgas in dem dann aus den schaumbildenden Substanzen entstehenden, auanärtenden Schaum eingeschlossen werden 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwischen den Durchlässen, z.B0 auf Überdruck reagierenden Sollbruchstellen oder Ventilen und den Behältern Wasservorlagen geschaltet sind. Device to prevent unacceptably high releases of dangerous, z * BO poisonous, radioactive, reacting in air or the like Substances from technical systems after accidents, characterized in that the Binary lengths contain dangerous substances, e.g. on overpressure have reactive desired bruehsbellen or valves, which are through suitable supply lines are connected to containers which are filled with such foam-forming substances are that the dangerous substances in the event of bursting of the predetermined breaking points or opening the valves in addition to a propellant gas or as the sole propellant gas in the self-hardening foam that then arises from the foam-forming substances 2. Device according to claim 1, characterized in that between the outlets, e.g. predetermined breaking points that react to excess pressure or Valves and the water reservoirs are switched. 3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß für den sich bildenden, aushärtenden Schaum eine aus begrenzenden Wänden, z.BOErdwällen gebildete Auffangwanne vorgesehen ist.3. Apparatus according to claim 1, characterized in that for the formed, hardening foam one from bounding walls, e.g. earth walls formed drip pan is provided.
DE19752538255 1975-08-28 1975-08-28 Radioactive or toxic materials release prevented after accident - by intentional discharge into foam-forming materials Withdrawn DE2538255A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752538255 DE2538255A1 (en) 1975-08-28 1975-08-28 Radioactive or toxic materials release prevented after accident - by intentional discharge into foam-forming materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752538255 DE2538255A1 (en) 1975-08-28 1975-08-28 Radioactive or toxic materials release prevented after accident - by intentional discharge into foam-forming materials

Publications (1)

Publication Number Publication Date
DE2538255A1 true DE2538255A1 (en) 1977-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752538255 Withdrawn DE2538255A1 (en) 1975-08-28 1975-08-28 Radioactive or toxic materials release prevented after accident - by intentional discharge into foam-forming materials

Country Status (1)

Country Link
DE (1) DE2538255A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660335A1 (en) * 1993-12-20 1995-06-28 Forschungszentrum Jülich Gmbh Device for preventing overpressure in storage containers containing hydrogen emitting material
CN109613589A (en) * 2018-11-12 2019-04-12 中国辐射防护研究院 One kind being used for nuclear facilities damage sequence public toxic effect evaluation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660335A1 (en) * 1993-12-20 1995-06-28 Forschungszentrum Jülich Gmbh Device for preventing overpressure in storage containers containing hydrogen emitting material
CN109613589A (en) * 2018-11-12 2019-04-12 中国辐射防护研究院 One kind being used for nuclear facilities damage sequence public toxic effect evaluation method

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