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EP0955498A1 - Dampferzeuger mit verbesserter Wasserzufuhrvorrichtung - Google Patents

Dampferzeuger mit verbesserter Wasserzufuhrvorrichtung Download PDF

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Publication number
EP0955498A1
EP0955498A1 EP99400893A EP99400893A EP0955498A1 EP 0955498 A1 EP0955498 A1 EP 0955498A1 EP 99400893 A EP99400893 A EP 99400893A EP 99400893 A EP99400893 A EP 99400893A EP 0955498 A1 EP0955498 A1 EP 0955498A1
Authority
EP
European Patent Office
Prior art keywords
steam generator
water
collector
manifold
bundle
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
EP99400893A
Other languages
English (en)
French (fr)
Other versions
EP0955498B1 (de
Inventor
Gilles Dague
Guy Desfontaines Leromain
Daniel Destre
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.)
Areva NP SAS
Original Assignee
Framatome SA
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
Priority claimed from FR9805620A external-priority patent/FR2778223A1/fr
Application filed by Framatome SA filed Critical Framatome SA
Publication of EP0955498A1 publication Critical patent/EP0955498A1/de
Application granted granted Critical
Publication of EP0955498B1 publication Critical patent/EP0955498B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/22—Drums; Headers; Accessories therefor
    • F22B37/228—Headers for distributing feedwater into steam generator vessels; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/023—Methods 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 long as they are not classified according to a specified heating fluid, in another group
    • F22B1/025—Methods 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 long as they are not classified according to a specified heating fluid, in another group with vertical U shaped tubes carried on a horizontal tube sheet

Definitions

  • the invention relates to a steam generator and in particular a steam generator of a pressurized water nuclear reactor comprising an improved water supply device.
  • Steam generators such as steam generators of nuclear reactors cooled by pressurized water have an outer casing of generally cylindrical shape arranged vertically in the nuclear reactor building, i.e. with the axis of the vertical outer shell.
  • the steam generators of pressurized water nuclear reactors make it possible to heat and vaporize feed water, by heat exchange with the pressurized cooling water of the nuclear reactor which circulates inside tubes of an exchange bundle.
  • the tube bundle is arranged inside a generally cylindrical bundle envelope which is arranged coaxially inside the external envelope.
  • the bundle tubes are fixed at their ends in a tubular plate, so that they open at a first end, in a first part of a steam generator water box and, at a second end, in a second part of the steam generator water box.
  • the steam generator water box distributes the pressurized water from the nuclear reactor vessel in which the core made up of fuel assemblies is placed and collects the pressurized water that has circulated inside the exchange tubes, to return the pressurized water recovered in the nuclear reactor vessel.
  • Steam generator feed water is introduced into the external envelope and channeled, so as to reach, in an inlet part of the exchange bundle, the lower part of the bundle and of the bundle envelope .
  • the feed water then flows from bottom to top inside the bundle envelope, in contact with the external surface of the tubes, so that it heats up then vaporizes and is found in the form of steam in the upper part of the outer casing of the steam generator.
  • the vapor recovered in the upper part of the steam generator is sent to the reactor turbine.
  • the supply water is generally introduced into the upper part of an annular space formed between the envelope of the tube bundle and the external envelope or between the envelope of the bundle and a skirt delimiting a circulation space communicating with a end portion of the bundle formed by the ends of the cold branches of the tubes, that is to say of the branches of the tubes through which the cooling water comes out of the reactor used for heating and vaporizing the feed water.
  • the supply water is preheated by circulation in contact with the bundle envelope and in contact with the cold branches of the tubes which are separated from the hot branches by a wall. vertical separation of diametral direction, over part of the beam height.
  • the feed water introduced into the envelope of the steam generator circulates from top to bottom in an annular space of vertical axial direction, up to the lower part of the bundle envelope.
  • a manifold of generally toroidal shape which is disposed inside the external envelope of the steam generator, perpendicular to the upper part of the annular water supply space.
  • the collector is connected to a water supply pipe passing through the external envelope of the steam generator and comprises means for distributing and guiding the supply water distributed in the circumferential direction of the annular supply space. in water.
  • the means for distributing and guiding the supply water can be constituted by inverted J-shaped tubes whose vertical straight branch is fixed to the collector and whose loop is directed downwards, in the direction of the part upper annular supply space.
  • the distribution in the circumferential direction and the flow through each of the J-shaped tubes provides a satisfactory distribution of the feed water in the circumferential direction of the annular space.
  • this device has the drawback that the jets leaving the J-shaped tubes have high speeds, which disturbs the flow of water going towards the annular supply space.
  • This device has the same drawbacks as the device, the collector of which consists of a complete toric envelope completely surrounding the bundle envelope, since the distribution of the feed water at the outlet of the collector is also ensured by tubes.
  • J-shaped It has been proposed to extend the J-shaped tubes in the vertical direction, in the annular water supply space. This arrangement does not, however, completely solve the turbulence problems and complicates the mechanical design of the steam generator, because of the length of the outlet branches of the J-shaped tubes.
  • Another drawback of the device comprising a weir is that it is not easy to ensure satisfactory mechanical strength of the weir, during high mechanical stresses, of the type water hammer, or in an accidental situation, in the event of a break in the drinking water piping. It is therefore necessary to design elements constituting the dispensing device which are extremely resistant and which are made from very thick sheets.
  • the object of the invention is therefore to propose a steam generator comprising an outer casing of generally cylindrical shape arranged with its vertical axis, a bundle of exchange tubes fixed inside a bundle casing of generally cylindrical shape arranged coaxially inside the external envelope, so as to delimit with the external envelope or with a guide skirt coaxial with the external envelope, an annular space for circulation of water supplying the steam generator in the axial direction and a device for supplying feed water to an upper axial end of the annular space comprising a generally toroidal manifold disposed along at least part of the circumference of the annular space, at least one pipe supplying the collector passing through the outer casing and means for guiding the supplying water downwards, in the direction of the annular space, the device tif supply of supply water ensuring a perfectly controlled regular supply of the annular space and with a well-defined circumferential distribution, while being of a mechanical structure allowing it to resist jolts of the supply in water.
  • the toroidal manifold has an upper wall crossed by a plurality of flow openings distributed along the circumferential direction of the collector and the means for guiding the supply water comprise an envelope disposed around at least part of the collector, so as to delimit with the collector a space for flow of water, at least one guide wall extending the casing downwards and a plurality of radial direction partition walls dividing the water flow space into a plurality of successive sections in the circumferential direction of the manifold.
  • Figure 1 is an elevational view in partial section through a vertical plane of a steam generator according to the invention.
  • FIG. 2 is a half-view in section through a horizontal plane of the steam generator, along 2-2 of FIG. 1.
  • Figure 3 is a sectional view along 3-3 of Figure 2.
  • Figure 4 is a sectional view along 4-4 of Figure 2.
  • Figure 5 is a sectional view along 5-5 of Figure 2.
  • Figure 6 is a sectional view along 6-6 of Figure 2.
  • FIG. 7 is a sectional view along 7-7 of FIG. 6.
  • FIG. 1 we see a steam generator of a pressurized water nuclear reactor generally designated by the reference 1.
  • the steam generator 1 comprises an outer casing 2 of generally cylindrical shape comprising a lower part having a first diameter and an upper part having a second diameter greater than the first diameter, the two parts of the external casing being connected together by a ferrule frustoconical 2a.
  • the steam generator When it is in service in the nuclear reactor building, the steam generator is arranged vertically, that is to say in such a way that the axis of the external envelope 2 is vertical.
  • the steam generator 1 comprises a bundle of heat exchange tubes 3 disposed inside a bundle casing 4 of generally cylindrical shape placed coaxially inside the outer casing 2 of the steam generator.
  • the bundle of tubes 3 consists of curved tubes having the shape of an inverted U, the straight branches of which are fixed at their ends in a tubular plate 5 integral with the external envelope 2.
  • a water box 6 of hemispherical shape comprising two compartments 6a and 6b separated from one another by a partition.
  • Pressurized water for cooling the reactor coming from the vessel containing the nuclear reactor core is introduced into compartment 6a and distributed in the branches of the tubes of bundle 3 opening into compartment 6a, these branches constituting the hot branches of the bundle 3.
  • the pressurized water for cooling the reactor circulates inside the tubes of the bundle to reach compartment 6b of the water box into which the cold branches of the tubes of the bundle 3 open.
  • the cooling water having circulated in the bundle 3 tubes is returned to the nuclear reactor vessel.
  • a separation plate 7 between the lower parts of the hot branches and cold branches of the tubes of the bundle 3 is arranged vertically between the branches of the bundle and fixed at its lower part to the tubular plate 5, in a diametrical direction of the tubular plate.
  • a supply water guide skirt 8 having the shape of a cylindrical sector is placed. with an amplitude of about 180 ° in the circumferential direction.
  • the upper part 8a of the skirt 8 is flared upwards and has the shape of a frustoconical sector.
  • the lower end of the skirt 8 is in contact with the upper face of the tube plate 5.
  • annular space 9 for circulation of the steam generator feed water.
  • the annular space 9 for circulating feed water in an axial direction is closed at its lower part by the tubular plate 5.
  • the lower end of the bundle envelope 4 is arranged at a certain height above the upper face of the tube plate 5, so that the space for circulation of feed water 9 communicates with the part of the bundle casing 4 enclosing the lower ends of the cold branches of the bundle tubes 3, delimited by the vertical separation plate 7.
  • the device 10 for introducing and distributing feed water which is produced in accordance with the invention, will be described below.
  • the feed water introduced into the upper part of the annular space 9 flows from top to bottom, in the vertical direction, that is to say in the axial direction of the steam generator, up to the upper face. of the tubular plate 5 constituting the lower end of the annular space 9.
  • the feed water then enters the bundle envelope 4, to come into contact with the lower end part of the cold branches of the tubes of the bundle 3.
  • the feed water is preheated during its circulation in the annular space and in contact with the end parts of the cold branches in which circulates the cooling water of the reactor which is collected in compartment 6b of the box water.
  • the steam generator feed water arriving at the upper edge of the separation plate 7 comes into contact with the hot branches of the tubes of the bundle 3 in which the water under cooling pressure circulates coming from the reactor vessel .
  • Contact with the hot branches and the upper part of the cold branches of the bundle produces additional heating of the feed water which rises inside the bundle, while heating and vaporizing.
  • the vapor formed from the heated feed water in contact with the bundle leaves the bundle envelope through its upper part and enters in the upper large-diameter part of the outer casing 2 of the steam generator in which steam separators and dryers are arranged.
  • the dried steam is sent to the turbine associated with the nuclear reactor via a pipe connected to the pipe 11 constituting the upper part of the external envelope 2 of the steam generator.
  • the feed water introduction and distribution device 10 must ensure satisfactory distribution of the feed water in the circumferential direction of the annular space 9.
  • a device 10 for introducing and distributing water which mainly comprises a collector 12 having the shape of a torus portion extending over an arc of a circle slightly less than 180 °, a conduit 13 for introducing feed water into the manifold 12 and an assembly 14 in two parts for guiding the feed water downwards, in the direction of the annular space 9 delimited between the skirt 8 and the bundle envelope 4 of the steam generator.
  • the conduit 13 for introducing feed water is connected on the one hand to a pipe 15 for crossing the external envelope of the steam generator and on the other hand to a central section 16 of the manifold 12 in the form of a portion torus.
  • the manifold 12 is constituted by a portion of large diameter toroidal pipe fixed by means of supports 17 on the internal surface of the external envelope 2 of the steam generator, above the part 8a of the shaped skirt 8 of frustoconical sector.
  • the manifold 12 in the form of a torus portion, comprises, in the upper part of its wall, openings 18, the centers of which are aligned on a circle centered on the axis of the steam generator common to the external envelope 2, at the bundle envelope 4 and at the manifold 12.
  • the successive openings 18 whose sections can be differentiated are spaced from each other by a substantially constant distance, so as to allow a homogeneous distribution of feed water in the circumferential direction of the collector 12 in the form of a torus portion.
  • openings 18 whose dimensions and distributions are adapted to the particular distribution of feed water to be obtained. . This is true even when one wishes to obtain a homogeneous distribution.
  • each of the two parts of the guide device 14 for the feed water has an external wall 14a comprising a part in the form of a torus portion, the cross section of which corresponds substantially to a quarter of circular section and a frusto-conical part extending downwards the toric part, substantially parallel to the frusto-conical part 8a of the skirt 8.
  • the guide device 14 further comprises an internal part 14b of cylindrical shape located opposite the frustoconical lower part of the external wall 14a of the guide device.
  • the two parts 14a and 14b of the guide device are fixed to the manifold 12.
  • the openings 18 passing through the upper wall of the toric manifold 12 open into a space 20 for water flow delimited between the surface of the manifold 12 and the toric part 14a of the guide device arranged around the wall of the manifold 12.
  • the guide assembly 14 is placed in a coaxial arrangement with respect to the manifold 12 and the steam generator.
  • the flow space 20, delimited between two parallel toric surface portions, has a tubular and annular shape.
  • the space 20 opens into a space for the outlet of the supply water delimited between the external frustoconical part 14a and the internal cylindrical part 14b of the guide device 14.
  • the fluid outlet space itself emerges vertically of the annular space 9 for supplying the steam generator.
  • the two portions of the guide device 14 are each separated into several successive sections (three sections 26a, 26b and 26c in the case shown in Figures 2 and 4) by radial walls such as 19a, 19b, 19c and 19d.
  • the walls 19b and 19c are walls separating two successive sectors of the guide device and the walls 19a and 19d are walls for closing the ends of the portion of the guide device 14.
  • the two portions of guide device 14 disposed symmetrically with respect to the supply conduit 13 of the manifold 12 are produced in the same way.
  • the partition wall 19c has the shape of the section of the flow and outlet spaces of the feed water of the guide device.
  • the walls such as 19c are welded to the walls of the guide device.
  • the conduit 13 for supplying the collector 12 connected to the central section 16 of the collector opens into the collector, below the upper part of the collector comprising the openings 18, so as to ensure the supply of supply water to the collector 12.
  • two filtration devices 21a and 21b are placed on the central section of the collector on either side of the connection zone of the supply conduit 13. The two filtration devices 21a and 21b are produced in an identical manner, so that only the filtration device 21b described in FIGS. 5, 6 and 7 will be described.
  • the filtration devices are mounted on the upper part of the manifold 12, at the level of openings cut in the wall of the toroidal manifold whose shape corresponds to the section of a cylinder with the toric surface of the manifold.
  • the filtration device 21b comprises a support structure consisting of a cylindrical wall 23 comprising a peripheral flange 22 which comes to rest on the O-ring manifold 12, in a coaxial arrangement relative to an opening passing through the wall of the O-ring manifold.
  • the filtration element of the filtration device consists of a flat lattice plate 24 held in the envelope of the O-ring manifold 12, at the level of the opening through which the cylindrical wall 23 of the support structure is placed.
  • the means for holding the flat plate 24 of the filtration element comprise a guide rail of substantially semi-circular shape fixed on the internal surface of the O-ring wall and a closure pad 25 having a circular outline and having a diametrical slot in which is engaged the upper edge of the plate 24.
  • the closure pad 25 has a peripheral flange allowing its fixing by screws on the peripheral flange 22 of the support assembly.
  • the pad 25 has a shape such that it fills the interior volume of the cylindrical wall 23 of the support assembly, in order to avoid the presence of a dead volume in the upper part of the support assembly.
  • the filtration plate 24 has a semi-circular end portion whose shape and size correspond to the half-section of the torus 12.
  • the filtration plate 24 penetrates inside the torus, so as to completely close the meridian section of the torus, as shown in Figures 5 and 6.
  • the feed water introduced through the feed pipe 13, which enters the central section 16 of the manifold 12, must pass through the filtration walls 24 of the filtration devices 21a and 21b before filling the two parts. distribution manifold located on either side of the central section 16. In this way, the feed water is filtered, so that the migrant bodies possibly contained in the feed water are stopped in the central space for introduction of the collector and cannot be entrained in the two distribution parts of the collector and in the annular space 9 for supplying the steam generator.
  • the feed water filling the two distribution parts of the torus on either side of the central section 16 flows through the upper openings 18 of the manifold 12, into the flow space 20 and then into the space of outlet located in the extension of the flow space 20.
  • the supply water is thus guided downward, towards the annular space 9 supplying the steam generator.
  • the device according to the invention makes it possible to obtain both an optimal distribution of the feed water in the circumferential direction of the annular feed space of the steam generator and a flow whose turbulence is very limited to the outlet of the supply device due to the distribution of water through openings passing through the toroidal casing of the manifold at its upper part and the presence of the segmented guide device.
  • the mechanical strength of the collector consisting of a closed O-ring is better than the mechanical strength of a gutter-shaped weir.
  • the water passage openings of the O-ring manifold are made so as to avoid any risk of flooding of the O-ring manifold, in the event of a drop in level in the steam generator which would result in an accumulation of steam in the upper part of the O-ring manifold . Such an accumulation of steam would be detrimental, when the food water supply installation is put back into operation, after a shutdown period.
  • the design of the guide device in the form of successive sectors separated by radial separation plates makes it easier to produce this guide device.
  • the presence of radial separation plates makes it possible to create successive feed water streams in the circumferential direction and contributes to better stability of the flow.
  • the presence of separate sectors also makes it possible to maintain at the outlet of each of the elementary sectors the same flow distribution as that existing at the outlet of the openings of the collector.
  • the dimension of the mesh of the trellis or of the grid constituting the filtration element 24 is chosen so as to retain the migrant bodies having a dimension greater than a predetermined dimension.
  • the predetermined dimension is less than the distance between the tubes of the bundle of the steam generator, in order to avoid that migrant bodies coming from the secondary circuit do not get caught between the tubes of the bundle and do not risk damaging them. .
  • the use of two filtration grids placed on either side of the central supply zone of the collector has the advantage that the two grids each ensure only the filtration of half of the supply water flow supplied to the steam generator, which reduces the pressure drop compared to a single grid.
  • the arrangement of the filtration element inside the steam generator allows the support assembly 22, 23 and the buffer 25 for closing the filtration element to work under low pressure, a small leak which can appear at the level of the flange presenting no harmful consequence, owing to the fact that the water supplying the leak then falls directly into the annular space supplying the steam generator.
  • the collector may have a shape and a structure different from those which have been described.
  • the collector In the case of a steam generator with preheating of the type described, the collector has the shape of a portion of torus whereas in the case of a steam generator not using preheating, the collector can have the shape a complete torus placed above the steam generator supply space, around its entire circumference.
  • the arrangement and size of the manifold feed water outlet openings may be different from those which have been described.
  • the guide device can also have a shape different from the shape described and can be made in one piece or in the form of several successive sections. Likewise, the distribution of the radial partition walls in the circumferential direction of the guide device can be arbitrary.
  • the invention applies to any steam generator comprising an annular space for circulation of feed water and a device for supplying feed water to an upper axial end of the annular space for circulation of water d 'food.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Commercial Cooking Devices (AREA)
  • Cookers (AREA)
EP99400893A 1998-05-04 1999-04-12 Dampferzeuger mit verbesserter Wasserzufuhrvorrichtung Expired - Lifetime EP0955498B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9805620 1998-05-04
FR9805620A FR2778223A1 (fr) 1998-05-04 1998-05-04 Generateur de vapeur comportant un dispositif d'alimentation en eau perfectionne
FR9805843A FR2778224B1 (fr) 1998-05-04 1998-05-07 Generateur de vapeur comportant un dispositif d'alimentation en eau perfectionne
FR9805843 1998-05-07

Publications (2)

Publication Number Publication Date
EP0955498A1 true EP0955498A1 (de) 1999-11-10
EP0955498B1 EP0955498B1 (de) 2003-03-12

Family

ID=26234305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99400893A Expired - Lifetime EP0955498B1 (de) 1998-05-04 1999-04-12 Dampferzeuger mit verbesserter Wasserzufuhrvorrichtung

Country Status (8)

Country Link
US (1) US6173680B1 (de)
EP (1) EP0955498B1 (de)
JP (1) JP4671454B2 (de)
CN (1) CN1127738C (de)
CA (1) CA2270781C (de)
DE (1) DE69905792T2 (de)
ES (1) ES2194423T3 (de)
FR (1) FR2778224B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2508799A1 (de) * 2011-04-04 2012-10-10 Mitsubishi Heavy Industries Dampferzeuger

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2851031B1 (fr) * 2003-02-12 2005-05-06 Framatome Anp Generateur de vapeur comportant un dispositif de fourniture d'eau d'alimentation realisant le piegeage de corps etrangers
FR2853047B1 (fr) * 2003-03-31 2005-06-24 Framatome Anp Generateur de vapeur comportant un dispositif d'alimentation en eau de secours
US20050050892A1 (en) * 2003-09-08 2005-03-10 Len Gould Gravity condensate and coolant pressurizing system
JP2007147163A (ja) * 2005-11-28 2007-06-14 Mitsubishi Heavy Ind Ltd 蒸気発生器及び蒸気発生器における冷却水の流動抵抗調整方法
US7434546B2 (en) * 2006-11-28 2008-10-14 Westinghouse Electric Co. Llc Steam generator loose parts collector weir
JP5055165B2 (ja) * 2008-02-29 2012-10-24 三菱重工業株式会社 蒸気発生器
JP2012220077A (ja) * 2011-04-07 2012-11-12 Mitsubishi Heavy Ind Ltd 蒸気発生器用給水管
US9175845B2 (en) * 2012-07-10 2015-11-03 Westinghouse Electric Company Llc Axial flow steam generator feedwater dispersion apparatus
CN103177783B (zh) * 2013-01-14 2015-07-15 上海核工程研究设计院 一种一体化反应堆蒸汽发生器
CN104392751A (zh) * 2014-10-21 2015-03-04 中科华核电技术研究院有限公司 避免放射性物质排放的蒸汽发生器
CN106257137A (zh) * 2016-09-08 2016-12-28 中国核动力研究设计院 一种带轴向预热器的蒸汽发生器
CN106257263B (zh) * 2016-09-08 2018-09-11 中国核动力研究设计院 一种带轴向预热器蒸汽发生器的试验方法及应用
CN106257264B (zh) * 2016-09-08 2018-09-11 中国核动力研究设计院 一种带轴向预热器蒸汽发生器的试验回路
CN106322338B (zh) * 2016-09-30 2018-10-30 中广核研究院有限公司 一种侧面给水的蒸汽发生器
CN109458609B (zh) * 2018-11-13 2019-11-12 中国核动力研究设计院 一种压水堆核电站蒸汽发生器给水环支承结构和系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547967A1 (de) * 1991-12-19 1993-06-23 Framatome Dampferzeuger mit Vorwärmung
FR2700383A1 (fr) * 1993-01-11 1994-07-13 Framatome Sa Echangeur de chaleur dans lequel l'alimentation en fluide secondaire s'effectue en partie haute par un boîtier d'alimentation ouvert vers le bas.
US5329886A (en) * 1993-08-02 1994-07-19 Westinghouse Electric Corporation Steam generator

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DE2829590C3 (de) * 1978-07-05 1981-02-05 Kraftwerk Union Ag, 4330 Muelheim Reaktordruckbehälter für einen Siedewasserreaktor
FR2477265A1 (fr) * 1980-02-29 1981-09-04 Framatome Sa Generateur de vapeur a prechauffage
CA2089528A1 (en) * 1992-02-17 1993-08-18 Georges Slama Steam generator supplied with secondary water from the bottom part

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547967A1 (de) * 1991-12-19 1993-06-23 Framatome Dampferzeuger mit Vorwärmung
FR2700383A1 (fr) * 1993-01-11 1994-07-13 Framatome Sa Echangeur de chaleur dans lequel l'alimentation en fluide secondaire s'effectue en partie haute par un boîtier d'alimentation ouvert vers le bas.
US5329886A (en) * 1993-08-02 1994-07-19 Westinghouse Electric Corporation Steam generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2508799A1 (de) * 2011-04-04 2012-10-10 Mitsubishi Heavy Industries Dampferzeuger
US9182113B2 (en) 2011-04-04 2015-11-10 Mitsubishi Heavy Industries, Ltd. Steam generator

Also Published As

Publication number Publication date
FR2778224B1 (fr) 2000-07-28
CN1127738C (zh) 2003-11-12
ES2194423T3 (es) 2003-11-16
JP4671454B2 (ja) 2011-04-20
EP0955498B1 (de) 2003-03-12
CA2270781C (fr) 2007-08-14
CA2270781A1 (fr) 1999-11-04
CN1234586A (zh) 1999-11-10
FR2778224A1 (fr) 1999-11-05
DE69905792D1 (de) 2003-04-17
DE69905792T2 (de) 2004-02-12
JP2000009888A (ja) 2000-01-14
US6173680B1 (en) 2001-01-16

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