DE102008033628B4 - Method for operating offshore installations with welded tubular steel foundation construction and possible sources of fire - Google Patents

Method for operating offshore installations with welded tubular steel foundation construction and possible sources of fire Download PDF

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Publication number
DE102008033628B4
DE102008033628B4 DE200810033628 DE102008033628A DE102008033628B4 DE 102008033628 B4 DE102008033628 B4 DE 102008033628B4 DE 200810033628 DE200810033628 DE 200810033628 DE 102008033628 A DE102008033628 A DE 102008033628A DE 102008033628 B4 DE102008033628 B4 DE 102008033628B4
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fire
gas
pressure
foundation
tubular steel
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DE200810033628
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DE102008033628A1 (en
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Ingo Rennert
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2884—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for welds

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Verfahren zum Betreiben von Offshore-Anlagen mit geschweißter Stahlrohrfundamentkonstruktion und möglichen Brandherden, mit den folgenden Schritten: Befüllen der Stahlrohrkonstruktion mit einem Gas oder Gasgemisch auf einen Druck, der erheblich über dem Umgebungsdruck am Fuß der Fundamente liegt, Erfassen des Gasdrucks und Auswerten des Druckverlaufs des Gases und Ausgeben einer Warnmeldung bei einem schleichenden oder signifikanten Druckabfall, der nicht auf einem Umgebungstemperaturabfall beruht, dadurch gekennzeichnet, dass das in die Stahlrohrkonstruktion eingebrachte Gas oder Gasgemisch Distickstoff (N2), Kohlenstoffdioxid (CO2) oder Umgebungsluft ist, aus der der Sauerstoff weitestgehend abgeschieden ist, und bei Entstehen eines Brandes in der auf das Fundament aufgesetzten Anlage zum automatischen Ersticken des Brandes der Brandstelle zugeführt wird.Method of operating offshore installations with welded tubular steel foundation construction and possible sources of fire, comprising the steps of: filling the tubular steel structure with a gas or gas mixture at a pressure substantially above the ambient pressure at the foot of the foundations, detecting the gas pressure and evaluating the pressure profile of the foundation Gas and issuing a warning message at a creeping or significant pressure drop, which is not based on an ambient temperature drop, characterized in that the introduced into the steel pipe construction gas or gas mixture is dinitrogen (N 2 ), carbon dioxide (CO 2 ) or ambient air, from which the oxygen is largely deposited, and is supplied to the fire site in case of fire in the plant placed on the foundation for automatic stifling of the fire.

Description

Die Erfindung betrifft ein Verfahren zum Betreiben von Offshore-Anlagen mit geschweißter Stahlrohrfundamentkonstruktion und möglichen Brandherden.The The invention relates to a method for operating offshore installations with welded tubular steel foundation construction and possible sources of fire.

Die das Fundament von Offshore-Anlagen, beispielsweise Anlagen der Öl- und Gasindustrie sowie Windkraftanlagen oder Forschungsstationen bildenden geschweißten Stahlkonstruktion müssen in vorgeschriebenen turnusmäßigen Abständen auf das Vorliegen von Brüchen, Lochfraß oder Haarrissen untersucht werden.The the foundation of offshore installations, such as oil and gas installations as well as wind turbines or research stations forming welded steel construction have to at prescribed regular intervals the presence of fractures, Pitting or Hairline cracks are examined.

Aus der US 4 425 054 ist es bekannt, die geschweißte Stahlrohrfundamentkonstruktion mit einem Gas unter einem geeigneten Druck zu füllen und den Gasdruck zu überwachen.From the US 4,425,054 It is known to fill the welded tubular steel foundation structure with a gas under a suitable pressure and to monitor the gas pressure.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu schaffen, das bei einer derartigen Anlage eine Brandbekämpfung ermöglicht.Of the Invention has for its object to provide a method that allows fire fighting in such a system.

Erfindungsgemäß wird diese Aufgabe gelöst durch den einzigen Patentanspruch.According to the invention this Task solved by the only claim.

Bevorzugt erfolgt das Befüllen der Stahlkonstruktion mittels eines elektrisch betriebenen Verdichters, das Erfassen des Drucks erfolgt mittels eines Drucksensors, das Auswerten des Druckverlaufs mittels eines Condition Monitoring Systems der Offshore-Anlage, über die auch die Abgabe einer Warnmeldung erfolgt.Prefers the filling takes place the steel structure by means of an electrically operated compressor, the detection of the pressure by means of a pressure sensor, the Evaluating the pressure profile using a condition monitoring system the offshore facility, over which also gives the delivery of a warning message.

Das in die Stahlrohrkonstruktion einzubringende Gas kann Umgebungsluft sein, aus der zur Verhinderung einer Korrosionswirkung das Salz abgetrennt ist und der Sauerstoff entzogen ist, so das das eingebrachte Gas im wesentlichen aus Stickstoff besteht; die Luft sollte auch entfeuchtet werden. Das in die Stahlrohrkonstruktion einzubringende Gas kann aber auch ein über Gasflaschen angeliefertes technisches Gas wie CO2 oder N2 sein.The gas to be introduced into the steel tube structure may be ambient air from which the salt is separated and the oxygen is removed to prevent corrosion, so that the gas introduced consists essentially of nitrogen; the air should also be dehumidified. However, the gas to be introduced into the tubular steel construction can also be a technical gas supplied via gas cylinders, such as CO 2 or N 2 .

Das in die Stahlkonstruktion eingebrachte sauerstoffarme oder sauerstofffreie Gas oder Gasgemisch kann im Brandfall über ein durch das Wartungspersonal verriegelbares Sicherheitsventil zu der Brandstelle in der auf das Fundament aufgesetzten Anlage zu automatischen Erstickung des Brandes zugeführt werden.The oxygen-poor or oxygen-free steel introduced into the steel structure Gas or gas mixture can in case of fire over one by the maintenance personnel lockable safety valve to the fire in the on the Foundation attached system to be automatically suffocated the fire.

Claims (1)

Verfahren zum Betreiben von Offshore-Anlagen mit geschweißter Stahlrohrfundamentkonstruktion und möglichen Brandherden, mit den folgenden Schritten: Befüllen der Stahlrohrkonstruktion mit einem Gas oder Gasgemisch auf einen Druck, der erheblich über dem Umgebungsdruck am Fuß der Fundamente liegt, Erfassen des Gasdrucks und Auswerten des Druckverlaufs des Gases und Ausgeben einer Warnmeldung bei einem schleichenden oder signifikanten Druckabfall, der nicht auf einem Umgebungstemperaturabfall beruht, dadurch gekennzeichnet, dass das in die Stahlrohrkonstruktion eingebrachte Gas oder Gasgemisch Distickstoff (N2), Kohlenstoffdioxid (CO2) oder Umgebungsluft ist, aus der der Sauerstoff weitestgehend abgeschieden ist, und bei Entstehen eines Brandes in der auf das Fundament aufgesetzten Anlage zum automatischen Ersticken des Brandes der Brandstelle zugeführt wird.Method of operating offshore installations with welded tubular steel foundation construction and possible sources of fire, comprising the steps of: filling the tubular steel structure with a gas or gas mixture at a pressure substantially above the ambient pressure at the foot of the foundations, detecting the gas pressure and evaluating the pressure profile of the foundation Gas and issuing a warning message at a creeping or significant pressure drop, which is not based on an ambient temperature drop, characterized in that the introduced into the steel pipe construction gas or gas mixture is dinitrogen (N 2 ), carbon dioxide (CO 2 ) or ambient air, from which the oxygen is largely deposited, and is supplied to the fire site in case of fire in the plant placed on the foundation for automatic stifling of the fire.
DE200810033628 2008-07-17 2008-07-17 Method for operating offshore installations with welded tubular steel foundation construction and possible sources of fire Expired - Fee Related DE102008033628B4 (en)

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DE200810033628 DE102008033628B4 (en) 2008-07-17 2008-07-17 Method for operating offshore installations with welded tubular steel foundation construction and possible sources of fire

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DE200810033628 DE102008033628B4 (en) 2008-07-17 2008-07-17 Method for operating offshore installations with welded tubular steel foundation construction and possible sources of fire

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DE102008033628B4 true DE102008033628B4 (en) 2011-02-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104820410A (en) * 2015-03-20 2015-08-05 苏州首旗信息科技有限公司 Gas station real-time monitoring device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771604A (en) * 1972-04-06 1973-11-13 R Barron Fire damage protected offshore oil producing rig
US4104906A (en) * 1977-04-04 1978-08-08 Continental Oil Company Early crack detection with multi-pressure system
US4143540A (en) * 1977-12-27 1979-03-13 Continental Oil Company Method of preventing corrosion of joints of steel structures submerged in corrosive media
US4425054A (en) * 1980-12-04 1984-01-10 Compagnie Francaise Des Petroles Marine platform adapted to facilitate the detection of possible cracks
US4502041A (en) * 1982-05-03 1985-02-26 The Regents Of The University Of California Structure failure detector with signal transmission through the structure itself
US5329972A (en) * 1987-03-13 1994-07-19 Shell Internationale Research Maatschappij B.V. Fire resistant plastic structure
WO2002018898A1 (en) * 2000-08-30 2002-03-07 Ronald Frederick Geary Liquid ingress detection
DE10345250A1 (en) * 2003-09-29 2005-04-21 Linde Ag Fire extinguishing method for wind-powered energy plant with hollow turbine tower used for storage and/or supply of fire extinguishing medium

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771604A (en) * 1972-04-06 1973-11-13 R Barron Fire damage protected offshore oil producing rig
US4104906A (en) * 1977-04-04 1978-08-08 Continental Oil Company Early crack detection with multi-pressure system
US4143540A (en) * 1977-12-27 1979-03-13 Continental Oil Company Method of preventing corrosion of joints of steel structures submerged in corrosive media
US4425054A (en) * 1980-12-04 1984-01-10 Compagnie Francaise Des Petroles Marine platform adapted to facilitate the detection of possible cracks
US4502041A (en) * 1982-05-03 1985-02-26 The Regents Of The University Of California Structure failure detector with signal transmission through the structure itself
US5329972A (en) * 1987-03-13 1994-07-19 Shell Internationale Research Maatschappij B.V. Fire resistant plastic structure
WO2002018898A1 (en) * 2000-08-30 2002-03-07 Ronald Frederick Geary Liquid ingress detection
DE10345250A1 (en) * 2003-09-29 2005-04-21 Linde Ag Fire extinguishing method for wind-powered energy plant with hollow turbine tower used for storage and/or supply of fire extinguishing medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104820410A (en) * 2015-03-20 2015-08-05 苏州首旗信息科技有限公司 Gas station real-time monitoring device

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