EP2607785B1 - Procédé de réduction de la teneur en oxygène dans les parois tubulaires d'un générateur de vapeur - Google Patents

Procédé de réduction de la teneur en oxygène dans les parois tubulaires d'un générateur de vapeur Download PDF

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Publication number
EP2607785B1
EP2607785B1 EP12186346.8A EP12186346A EP2607785B1 EP 2607785 B1 EP2607785 B1 EP 2607785B1 EP 12186346 A EP12186346 A EP 12186346A EP 2607785 B1 EP2607785 B1 EP 2607785B1
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EP
European Patent Office
Prior art keywords
inert gas
tubes
steam
tube wall
boiler water
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.)
Active
Application number
EP12186346.8A
Other languages
German (de)
English (en)
Other versions
EP2607785A2 (fr
EP2607785A3 (fr
Inventor
Jürgen Müller
Horst Trabhardt
Frank-Udo Dr. Leidich
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.)
General Electric Technology GmbH
Mitsubishi Power Europe GmbH
Original Assignee
General Electric Technology GmbH
Mitsubishi Hitachi Power Systems Europe 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
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Application filed by General Electric Technology GmbH, Mitsubishi Hitachi Power Systems Europe GmbH filed Critical General Electric Technology GmbH
Priority to PL12186346T priority Critical patent/PL2607785T3/pl
Priority to SI201231798T priority patent/SI2607785T1/sl
Publication of EP2607785A2 publication Critical patent/EP2607785A2/fr
Publication of EP2607785A3 publication Critical patent/EP2607785A3/fr
Application granted granted Critical
Publication of EP2607785B1 publication Critical patent/EP2607785B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/025—Devices and methods for diminishing corrosion, e.g. by preventing cooling beneath the dew point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/12—Forms of water tubes, e.g. of varying cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/50—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers for draining or expelling water

Definitions

  • the invention is directed to a method for avoiding stress corrosion cracking in pipes of installed and installed pipe wall areas or pipe wall segments of a steam generator wall of a steam generator or steam boiler of a power plant fired with carbon-containing fuel.
  • the same problem can also happen when restarting a steam generator, for example after a repair, when turning off or putting the Steam generator existing boiler water is drained into the flow volumes of the pipes. If the ventilation valves for draining the boiler water are opened when the steam generator is switched off, air flows from the outside into the flow volumes of the pipes when the water is discharged into the flow volumes that are released. Air is sucked in, especially when the steam generator wall pipes are still warm.
  • the atmospheric oxygen contained in the air volume can then be incorporated into the remaining boiler water remaining in the pipes and / or into the new, fresh boiler water possibly introduced into the flow volumes during refilling, so that an undesirably high oxygen concentration in the boiler water is formed, which in turn creates the danger entails that this causes or supports stress corrosion cracking in the pipes.
  • a jacket or tubular heat exchanger which has a double-walled core tube with an axially extending annular space, the annular space being connected to an inert gas source.
  • a heat exchanger is known, the walls of which have water-cooled tubes which are connected to a water / steam cycle.
  • a pipe system for a cooling medium is arranged in the water flowing in from the water / steam circuit in the heat exchanger.
  • the heat exchanger walls have openings through which air is introduced into the heat exchanger, which then leads to swirling of the water in the heat exchanger.
  • US 1,976,462 A discloses a steam generator, in which the tube walls are formed by closed tube sections, in which a liquid flows, which absorbs heat in the gas space and releases this when a heat exchanger flows through to a liquid flowing therein.
  • a method for avoiding signs of corrosion on a boiler interior which is not filled with boiler water and which could occur when the boiler is at a standstill for a long time is from GB 731 137 A known. It is disclosed there to preserve the interior of the boiler when a boiler that has been in operation for some time has been decommissioned by introducing nitrogen into the free volume of such a boiler, preferably at a higher pressure than the outside environment, and thereby preventing the penetration of oxygen .
  • the invention is therefore based on the object of providing a solution which eliminates or at least reduces the problem of incorporating atmospheric oxygen into the boiler water, which consists in filling pipes of a steam generator wall with boiler water and / or in discharging boiler water from these pipes.
  • the object is thus achieved according to the invention in that the tubes of the tube wall regions or tube wall segments consist of one of the steels T22, T23 or T24 and in the tubes the pipe wall areas or pipe segments (of the steam generator or steam boiler) consisting of one of the steels T22, T23 or T24, which are flowed through by boiler water or steam generated during power plant operation, in order to reduce the oxygen content in the flow volume formed by the pipes before filling or refilling ( of the steam generator or boiler), an inert gas or an inert gas mixture is introduced with boiler water or steam in a gaseous oxygen-displacing manner in the respective flow volume of the tubes in the form of atmospheric oxygen.
  • the flow volume filled when the tubes are filled with atmospheric oxygen and / or the free volume formed in the flow volume of the tubes of a steam generator wall when draining boiler water is filled with an inert gas or an inert gas mixture, which is respectively introduced into the tubes at this time.
  • the inert gas or the inert gas mixture displaces the air in the respective flow volume of the pipes and protects these pipes and thus the steam generator wall from stress corrosion cracking, which could otherwise arise from the inclusion of atmospheric oxygen in the boiler water.
  • an inert gas or an inert gas mixture is introduced into the free flow volume that forms in the tubes when boiler water is discharged.
  • an inert gas or an inert gas mixture is used as the inert gas or inert gas mixture, so that in each case an inert gas or an inert gas mixture is introduced.
  • the use of nitrogen as the inert gas is particularly preferred.
  • the use of the method according to the invention is also particularly advantageous when the boiler water or steam is discharged from the respective flow volume of the pipes when the steam generator is switched off. Otherwise there is a great risk that atmospheric oxygen will be sucked into the flow volume of the pipes.
  • the invention further provides that the inert gas or inert gas mixture is provided in the form of a gas cushion, in particular one that has an increased gas pressure.
  • the invention further provides that an inert gas or an inert gas mixture is introduced when the ventilation valves are opened. It is then furthermore expedient and advantageous if the pipes and / or the ventilation valves are brought into fluid-conducting flow connection with the inert gas cushion via connected ventilation lines.
  • the invention is characterized in that nitrogen is used as the inert gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Air Supply (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Claims (7)

  1. Procédé pour empêcher la corrosion sur fissure de tension dans des tubes de zones de paroi tubulaire ou de segments de paroi tubulaire montés et installés d'une paroi de générateur de vapeur d'un générateur de vapeur ou d'une chaudière à vapeur d'une centrale électrique alimentée en combustible contenant du carbone, dans lequel les tubes des zones de paroi tubulaire ou des segments de paroi tubulaire sont composés de l'un des aciers T22, T23 ou T24, et dans lequel un gaz inerte ou un mélange de gaz inerte est introduit dans les tubes des zones de paroi tubulaire ou des segments de paroi tubulaire qui sont composés de l'un des aciers T22, T23, T24, dans lesquelles circule l'eau de chaudière ou la vapeur formée à partir de celle-ci lorsque la centrale électrique est en service, pour réduire la teneur en oxygène dans le volume d'écoulement formé par les tubes avant de remplir ou de recharger le générateur de vapeur ou la chaudière à vapeur avec de l'eau de chaudière ou de la vapeur, de manière à déplacer l'oxygène gazeux présent dans le volume d'écoulement respectif des tubes sous forme d'oxygène atmosphérique.
  2. Procédé selon la revendication 1, caractérisé en ce que le volume d'écoulement libre à l'intérieur des tubes, qui est présent avant le remplissage ou le rechargement des tubes avec de l'eau de chaudière ou de la vapeur, est rempli complètement avec le gaz inerte ou le mélange de gaz inerte.
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le gaz inerte ou le mélange de gaz inerte est fourni sous la forme d'un coussin de gaz ayant en particulier une pression de gaz accrue.
  4. Procédé selon la revendication 3, caractérisé en ce que les tubes sont mis en liaison d'écoulement fluidique avec le coussin de gaz inerte.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un gaz inerte ou un mélange de gaz inerte est introduit avec l'ouverture de valves d'échappement.
  6. Procédé selon l'une quelconque des revendications 3 à 5, caractérisé en ce que les tubes et/ou les valves d'échappement sont mises en liaison d'écoulement fluidique avec le coussin de gaz inerte par des conduites d'échappement raccordées.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on utilise de l'azote comme gaz inerte.
EP12186346.8A 2011-12-19 2012-09-27 Procédé de réduction de la teneur en oxygène dans les parois tubulaires d'un générateur de vapeur Active EP2607785B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL12186346T PL2607785T3 (pl) 2011-12-19 2012-09-27 Sposób zmniejszania zawartości tlenu w ścianach rurowych wytwornicy pary
SI201231798T SI2607785T1 (sl) 2011-12-19 2012-09-27 Postopek za zmanjšanje vsebnosti kisika v stenskih ceveh parnega generatorja

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011056634.1A DE102011056634B4 (de) 2011-12-19 2011-12-19 Verfahren zur Reduzierung des Sauerstoffgehaltes in Dampferzeugerwandrohren

Publications (3)

Publication Number Publication Date
EP2607785A2 EP2607785A2 (fr) 2013-06-26
EP2607785A3 EP2607785A3 (fr) 2015-05-20
EP2607785B1 true EP2607785B1 (fr) 2020-04-08

Family

ID=45935804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12186346.8A Active EP2607785B1 (fr) 2011-12-19 2012-09-27 Procédé de réduction de la teneur en oxygène dans les parois tubulaires d'un générateur de vapeur

Country Status (8)

Country Link
US (1) US10378757B2 (fr)
EP (1) EP2607785B1 (fr)
JP (1) JP6070929B2 (fr)
KR (1) KR101961954B1 (fr)
CN (1) CN103162285B (fr)
DE (1) DE102011056634B4 (fr)
PL (1) PL2607785T3 (fr)
SI (1) SI2607785T1 (fr)

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1976462A (en) * 1931-02-21 1934-10-09 Stephen W Borden Boiler for power plants
GB731137A (en) * 1952-10-03 1955-06-01 Otto Riexinger Improvements in methods of preserving the interior of steam boilers
GB750071A (en) * 1953-09-16 1956-06-06 Sulzer Ag Expelling water from the tube systems of steam generators
US3841271A (en) * 1971-03-03 1974-10-15 Westinghouse Electric Corp Heat exchanger having a plurality of modular tube bundles
US3699903A (en) * 1971-02-25 1972-10-24 Oliver F King Method for improving fuel combustion in a furnace and for reducing pollutant emissions therefrom
US3868994A (en) * 1973-02-26 1975-03-04 Atomic Energy Commission Liquid metal operated heat exchanger
US4633818A (en) * 1985-12-20 1987-01-06 Combustion Engineering, Inc. Mobile coal-fired fluidized bed power unit
US5000908A (en) * 1989-10-02 1991-03-19 Tennessee Valley Authority Pulsed high-pressure (PHP) drain-down of steam generating system
JPH03211303A (ja) * 1990-01-17 1991-09-17 Mitsubishi Heavy Ind Ltd ボイラクリーンアップ時の溶存酸素除去法
JPH04110505A (ja) * 1990-08-28 1992-04-13 Takuma Co Ltd ボイラの防食システム
US5233943A (en) * 1990-11-19 1993-08-10 Texaco Inc. Synthetic gas radiant cooler with internal quenching and purging facilities
US5050540A (en) 1991-01-29 1991-09-24 Arne Lindberg Method of gas blanketing a boiler
FI98936B (fi) * 1992-10-19 1997-05-30 Ahlstrom Machinery Oy Menetelmä ja laite lämmön talteenottamiseksi jäteliemen talteenottokattilassa
US5396865A (en) * 1994-06-01 1995-03-14 Freeh; James H. Startup system for power plants
JPH08219405A (ja) * 1995-02-16 1996-08-30 Kyushu Electric Power Co Inc ボイラ設備の防食方法
JPH10132204A (ja) * 1996-11-01 1998-05-22 Taikisha Ltd 防食方法
JP2941724B2 (ja) * 1996-12-25 1999-08-30 麒麟麦酒株式会社 ボイラの蒸気ドラム腐食防止装置
WO2006063026A1 (fr) 2004-12-07 2006-06-15 Westlake Petrochemicals L.P. Procede et dispositif de degazage pour l'eau d'alimentation d'une chaudiere
US20100028705A1 (en) * 2006-09-06 2010-02-04 Alstom Technology Ltd Dissimilar metal transition for superheater or reheater tubes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2607785A2 (fr) 2013-06-26
JP2013127354A (ja) 2013-06-27
PL2607785T3 (pl) 2020-09-21
SI2607785T1 (sl) 2020-08-31
CN103162285A (zh) 2013-06-19
JP6070929B2 (ja) 2017-02-01
US20130152877A1 (en) 2013-06-20
CN103162285B (zh) 2016-12-28
US10378757B2 (en) 2019-08-13
KR101961954B1 (ko) 2019-03-26
DE102011056634B4 (de) 2014-02-13
EP2607785A3 (fr) 2015-05-20
DE102011056634A1 (de) 2012-05-03
KR20130070531A (ko) 2013-06-27

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