US3916844A - Steam generator blowdown apparatus - Google Patents
Steam generator blowdown apparatus Download PDFInfo
- Publication number
- US3916844A US3916844A US492646A US49264674A US3916844A US 3916844 A US3916844 A US 3916844A US 492646 A US492646 A US 492646A US 49264674 A US49264674 A US 49264674A US 3916844 A US3916844 A US 3916844A
- Authority
- US
- United States
- Prior art keywords
- settling chamber
- shell
- baffle
- secondary liquid
- organization
- 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.)
- Expired - Lifetime
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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
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/483—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers specially adapted for nuclear steam generators
-
- 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
Definitions
- the present invention relates in general to vapor generators of the shell and tube type wherein vaporizable liquid, termed the secondary liquid, is transformed into vapor by passing it in heat exchange relation with the high temperature primary fluid that is conducted through the tubes.
- Vapor generators of this type characteristically employ a bundle of tubes, either of the inverted U-type in which both ends of each tube are connected to a single tube sheet or of the straight type in which the tubes are connected at their opposite ends to a pair of axially spaced tube sheets.
- the units operate with a body of secondary liquid maintained at a predetermined level in a downcomer annulus and a riser pas sage with circulation of the liquid between the two sections being maintained by the thermal syphonic action created by the difference in densities between the liquid bodies in the respective sections.
- the secondary liquid flow through vapor generators of the described type is such that the liquid from the down-comer annulus enters the riser passage from its periphery and must turn and flow upwardly therethrough.
- This flow pattern creates a region of relatively stagnant flow in the lower part of the riser passage within which any suspended particles entrained in the secondary liquid, such as metal oxides or scaleforming calcium, may be permitted to settle thereby forming sediment deposits.
- Such deposits if not removed. may cover the tube and tube sheet surfaces thereby operating to reduce the amount of heat transfer area provided thereby.
- sediment deposits provide a convenient medium for the concentration of corrosive impurities, such as chloride salts, or
- baffle plate is conveniently disposed to cooperate with the transition member in defining the settling chamber. It should be understood, however, that the invention is equally applicable to shell and tube vapor generators having other shell configurations.
- FIG. I is a vertical section of a typical shell and tube vapor generator equipped with apparatus of the present invention.
- FIG. 2 is an enlarged partial vertical section of the vapor generator of FIG. I illustrating the settling cha n ⁇ her of the present invention in greater detail;
- FIG. 3 is a plan section taken along line 3-3 of FIG. 2;
- FIG. 4 is an enlarged partial vertical section of an alternative form of the settling chamber of the invention.
- FIG. I of the drawings there is shown a shell and tube type vapor generator It) incorporating the present invention. It comprises a vertically elongated pressure vessel defined by a lower cylindrical shell section 12 and a larger diameter, upper cylindrical shell section 14, the latter being integrally connected with the former by means of a frustoconical transition member l6.
- the ends of the vessel are closed, at the bottom by means of hemispherically for med closure head land at the top by a dome-shaped; cover 20 containing a vapor outlet nozzle 22.
- the interior of the pressure vessel contains a plurality of annular baffles 24, 26 and 28, baffle 24 being a cylindrical shroud extending in coaxially spaced relation from the wall of the lower shell 12 to cooperate therewith in forming an inner riser passage 30 and an outer, annular downcomer passage 32.
- baffle 24 being a cylindrical shroud extending in coaxially spaced relation from the wall of the lower shell 12 to cooperate therewith in forming an inner riser passage 30 and an outer, annular downcomer passage 32.
- the lower end of the vessel interior is closed by tube sheet 34 disposed between the lower end of shell 12 and the lower closure head 18.
- the tube sheet 34 extends transversely of the vessel axis and connects at its periphery between the shell .12 and closure head 18.
- the tube sheet 34 contains a plurality of tube openings adapted to fixedly receive the ends of inverted U- shaped heat transfer tubes 38 that form a longitudinally extending tube bundle 40 substantially' filling the riser passage 30.
- the tube ends are open and extend through the tube sheet to place the tubes 38 in fluid communication with a heating fluid chamber that occupies that region of the vessel enclosed between the closure head 18 and the tube sheet 34 and which is divided into inlet and outlet portions 44 and 46, respectively, by means shown-)bymeans'of inlet and outletfnozzles 50,and $2, v
- the flowing mixture is passedto vapor-liquid separator apparatus',-a'rnultiplicity o f' such separators indicated as 62 bein mounted upon baffle plate 28 and communicating with the char nberfip by means of 'openings61--'providedin the baffle.
- the separators 62 may be ofany well known -construction,5those shown being of the centrifugal type and area'rranged todisch'arge separated liquid downwa'rdly upon thebaffle plate 28 frdnf'whence it is-"returned tofthe downcomer. passage- 32 to be mixed with the incoming feedwater, and recircuIated through the unit.
- the separated vapor is disjchargedfrorn the separators62 in the upward direction for discharge ofzthe vapor outlet noz zle' 22 from .-whence .it is jconductedt oa point of use.
- an annular baffle i s provided in the upperregi'on of the downcomer passage 32.
- the baffle 64 is concentrically space'd be- .tweenithe cylindrical shroud 24 and the interior surface of the pressure-shell.
- the baffle 64'i's prefera-; .bly disposed adjacent the transition member'16 to cooperate therewith in defining a settling chamber 66.
- the baffle plate 64 is sealedly at- -;tached, as by means of welding to the juncture of the :Itransition member 16 and the lower shell section 1 2. thereby. forming the closed bottom of the chamber .At'itsupper end the baffle plate 64 possessesan'iout- 1 turned flange 68 intended to prevent flow of secondary liq'uid directly into the lower regionof the downcomer passage 32.
- the end edge of .the flange is disposed in close concentric spacingwith respect to the adjacent surface of the shroud 24 in order to accommodate thermally induced relative movements between the shroud and the shell. 1 v.
- the baffle plate defines aninletopening, indicated as 70, to the settling chamber 66. As shown, this opening is disposed below the discharge ports 58- of the feedwater inlet header 56 whereby'the secondary liquidadrnitted to theisettling chamber 66is a mixture ,ofithe fresh, incoming feedww 1 ter and separated liquid from the separatorsv62, the lat- -t'er being 'recirculated through the unit.
- the plate Adjacent its upper end ,'however, the plate is provided with a plurality of openings 72 which'esltablish fluid communication between these ttlingcharnber and the remainder of the downcomer passage 3 2."
- B y means'of this arrangement thesecondary liquidenteringthe settling chamber, in addition to having' itsflow velocity reduced, is also caused to undergo an abrupt reversal of direction as shown by thear rows 74 whereby entrained particulate material isre'movedfrom the'flo w streamby gravity and falls as sediment to the bottom of thecham-ber.
- An annular"blowdown pipe 76' is disposed in the lower" regionof the settling ch amber'66.
- the pipe is perforated, as 51:78, along its length and'co'mmunicates with: the exterior'ofthe pressu r elshell' through blowdown nozzle 80 is as shownin FIG. 3, T- connected to the pipe.
- Means (not'shown) connect with the blowdown nozzle' 80 whereby blowdown of the removed particulate material can be effected on either a continuous or'a periodic basis.
- FIG 4 of the drawing there is illustrated an alternative form of the invention in which the perforated baf fleplate j64of the ern bodiment'is replaced-in.
- thesettl ing chamber 66 byabaffle arrangement com prising members 82 and 84 which define a tortuous fluid: path between the se'"ttling "chamber and the re mainder of the fdo'wncomer passage3 2.
- Member '82 is upper end edge of the member 82 and telescopically encloses the amete define a fluid path by .-means of which the flowing secondary liquid is caused to undergo an abrupt change of direction prior to exiting the settling chamber 66 whereby to induce gravitational removal of entrained particulate material for discharge through blowdown pipe 76 in a mannersimilar to that effected by thearrangement shown in FIG. 1.
- apparatus as'hereindescribed provides ajcohvenient solution'l'to the problem of removing sedimefit forrningparticulate material from the secondary 'liq'uid tha't is circulated through J shell and tube vapor generators. Because the arrangemerit requires'no blowdown piping within 'thetinterior of the tube bundle, spaces thatcould only be produced parting from to shell an by the 'removal'of heat exchange tubes are not required. Moreover, because the settling chamber and its attendant blowdown pip'ingis locatedinthe dow'ncomer passage remote from the tubebundle no:heat
- a shell and tube heat exchanger for the generation of vapor by the indirect transfer of heat from a heating fluid to a secondary liquid
- a pressure shell having a transverse tube sheet defining a vapor generating region enclosing a bundle of heat exchange tubes emanating from said tube sheet, means for passing heating fluid through said tubes and means for circulating said secondary liquid through said vapor generating region exteriorly of said tubes, the improvement comprising means for the removal of suspended particulate material from said circulating secondary liquid, said means including:
- baffle means defining a settling chamber forming a low liquid flow velocity region within the interior of said pressure shell
- said settling chamber having an opening for the reception of secondary liquid flowing within said vapor generating region and defining a flow path in which said secondary liquid undergoes an abrupt change of direction;
- blowdown pipe operatively disposed in said set tling chamber and communicating with the exterior of said pressure shell for the discharge of settled particulate material from said settling chamber.
- said heat exchanger includes a generally cylindrical baffle enclosing said bundle of heat exchange tubes in circumferentially spaced relation from the interior surface of said pressure shell to define an axial riser passage and an annular downcomer passage and said settling chamber is disposed in said downcomer passage.
- said secondary liquid circulating means includes feedwater inlet means communicating with said downcomer passage upstream in the secondary liquid flow sense from said settling chamber.
- said baffle means includes a substantially cylindrical plate concentrically spaced between said cylindrical baffle and the interior surface of said pressure shell defining an annular settling chamber about said downcomer passage, said plate being imperforate at least over a substantial portion of its length.
- said baffle plate includes an out-turned flange disposed adjacent the inlet opening of said settling chamber, said flange having an end surface in closely spaced concentric relation to said cylindrical baffle, and means forming perforations in said baffle plate adjacent said flange.
- said pressure shell includes an enlarged diameter upper shell portion and a reduced diameter lower shell portion, a conical transistion member connecting said shell portions, said baffle plate cooperating with the internal surface of said transition member to form said settling chamber.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Cyclones (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US492646A US3916844A (en) | 1974-07-29 | 1974-07-29 | Steam generator blowdown apparatus |
CA224,280A CA1014029A (en) | 1974-07-29 | 1975-04-10 | Steam generator blowdown apparatus |
DE19752532200 DE2532200C3 (de) | 1974-07-29 | 1975-07-18 | Abschlämmeinrichtung in einem Dampferzeuger |
ES439630A ES439630A1 (es) | 1974-07-29 | 1975-07-22 | Perfeccionamientos en los aparatos de evacuacion de particu-las suspendidas en el liquido secundario en circulacion en termocambiadores tubulares. |
JP50090349A JPS5137302A (en) | 1974-07-29 | 1975-07-25 | Kanjojokihatsuseisochi |
SE7508573A SE402158B (sv) | 1974-07-29 | 1975-07-28 | Anordning for avlegsnande av suspenderat, partikelformigt material fran den cirkulerande sekundervetskan i en vermevexlare for alstrande av anga |
FR7523544A FR2280860A1 (fr) | 1974-07-29 | 1975-07-28 | Dispositif d'elimination de particules en suspension dans un echangeur de chaleur |
GB31509/75A GB1492849A (en) | 1974-07-29 | 1975-07-28 | Shell and tube heat exchangers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US492646A US3916844A (en) | 1974-07-29 | 1974-07-29 | Steam generator blowdown apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US3916844A true US3916844A (en) | 1975-11-04 |
Family
ID=23957053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US492646A Expired - Lifetime US3916844A (en) | 1974-07-29 | 1974-07-29 | Steam generator blowdown apparatus |
Country Status (7)
Country | Link |
---|---|
US (1) | US3916844A (xx) |
JP (1) | JPS5137302A (xx) |
CA (1) | CA1014029A (xx) |
ES (1) | ES439630A1 (xx) |
FR (1) | FR2280860A1 (xx) |
GB (1) | GB1492849A (xx) |
SE (1) | SE402158B (xx) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4037569A (en) * | 1976-01-30 | 1977-07-26 | Westinghouse Electric Corporation | Flow distribution arrangement for a steam generator |
US4158387A (en) * | 1978-04-24 | 1979-06-19 | The Babcock & Wilcox Company | Blowdown apparatus |
DE2949975A1 (de) * | 1978-12-26 | 1980-07-17 | Combustion Eng | Dampferzeugeranordnung fuer kernkraftwerke |
EP0023808A2 (en) * | 1979-07-25 | 1981-02-11 | Westinghouse Electric Corporation | Nuclear steam generator |
DE3130400A1 (de) * | 1980-07-31 | 1982-06-16 | Framatome, 92400 Courbevoie | Verteiler zur einfuehrung eines fluids in einen dampfgenerator |
EP0132112A2 (en) * | 1983-07-13 | 1985-01-23 | Westinghouse Electric Corporation | Sludge removing apparatus for a steam generator |
EP0161894A2 (en) * | 1984-05-14 | 1985-11-21 | Westinghouse Electric Corporation | Discharge tube for inhibiting stratification in feedwater headers of a steam generator |
EP0183049A1 (en) * | 1984-11-15 | 1986-06-04 | Westinghouse Electric Corporation | Perforated flow distribution plate |
EP0185174A1 (en) * | 1984-12-03 | 1986-06-25 | Westinghouse Electric Corporation | Steamgenerator having a sludge trap |
US4632068A (en) * | 1984-05-24 | 1986-12-30 | Westinghouse Electric Corp. | Modular sludge collection system for a nuclear steam generator |
US4645542A (en) * | 1984-04-26 | 1987-02-24 | Anco Engineers, Inc. | Method of pressure pulse cleaning the interior of heat exchanger tubes located within a pressure vessel such as a tube bundle heat exchanger, boiler, condenser or the like |
US4655846A (en) * | 1983-04-19 | 1987-04-07 | Anco Engineers, Inc. | Method of pressure pulse cleaning a tube bundle heat exchanger |
US4706613A (en) * | 1986-10-17 | 1987-11-17 | Westinghouse Electric Corp. | Steam generator having an auxiliary recirculation path |
US4736713A (en) * | 1984-11-15 | 1988-04-12 | Westinghouse Electric Corp. | Foraminous or perforated flow distribution plate |
US4762091A (en) * | 1984-12-03 | 1988-08-09 | Westinghouse Electric Corp. | Sludge trap with internal baffles for use in nuclear steam generator |
US4773357A (en) * | 1986-08-29 | 1988-09-27 | Anco Engineers, Inc. | Water cannon apparatus and method for cleaning a tube bundle heat exchanger, boiler, condenser, or the like |
WO1990012983A1 (en) * | 1989-04-25 | 1990-11-01 | Kindling, Alexander, T. | Method and apparatus for organizing the flow of fluid in a vertical steam generator |
US5088451A (en) * | 1990-04-09 | 1992-02-18 | Westinghouse Electric Corp. | Sludge removal system for removing sludge from heat exchangers |
FR2684433A1 (fr) * | 1991-12-02 | 1993-06-04 | Framatome Sa | Dispositif de piegeage de corps migrants a l'interieur du circuit secondaire d'un generateur de vapeur. |
FR2690504A1 (fr) * | 1992-04-28 | 1993-10-29 | Framatome Sa | Générateur de vapeur à dispositif de distribution et de réparation de l'eau alimentaire et de l'eau de recirculation dans la partie secondaire. |
US5329886A (en) * | 1993-08-02 | 1994-07-19 | Westinghouse Electric Corporation | Steam generator |
US20080121194A1 (en) * | 2006-11-28 | 2008-05-29 | Prabhu Padmanabha J | Steam generator loose parts collector weir |
US8953735B2 (en) | 2006-11-28 | 2015-02-10 | Westinghouse Electric Company Llc | Steam generator dual system sludge and loose parts collector |
US11371788B2 (en) * | 2018-09-10 | 2022-06-28 | General Electric Company | Heat exchangers with a particulate flushing manifold and systems and methods of flushing particulates from a heat exchanger |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2471666A (en) * | 2009-07-07 | 2011-01-12 | Dumitru Fetcu | Heat recovery steam generator with heat pipes |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3114353A (en) * | 1959-06-25 | 1963-12-17 | Babcock & Wilcox Co | Vapor generating unit and method of operating same |
US3139070A (en) * | 1961-01-31 | 1964-06-30 | Babcock & Wilcox Co | Vapor generating unit |
US3576179A (en) * | 1969-12-24 | 1971-04-27 | Combustion Eng | Economizer for shell-and-tube steam generator |
-
1974
- 1974-07-29 US US492646A patent/US3916844A/en not_active Expired - Lifetime
-
1975
- 1975-04-10 CA CA224,280A patent/CA1014029A/en not_active Expired
- 1975-07-22 ES ES439630A patent/ES439630A1/es not_active Expired
- 1975-07-25 JP JP50090349A patent/JPS5137302A/ja active Granted
- 1975-07-28 FR FR7523544A patent/FR2280860A1/fr not_active Withdrawn
- 1975-07-28 SE SE7508573A patent/SE402158B/xx unknown
- 1975-07-28 GB GB31509/75A patent/GB1492849A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3114353A (en) * | 1959-06-25 | 1963-12-17 | Babcock & Wilcox Co | Vapor generating unit and method of operating same |
US3139070A (en) * | 1961-01-31 | 1964-06-30 | Babcock & Wilcox Co | Vapor generating unit |
US3576179A (en) * | 1969-12-24 | 1971-04-27 | Combustion Eng | Economizer for shell-and-tube steam generator |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4037569A (en) * | 1976-01-30 | 1977-07-26 | Westinghouse Electric Corporation | Flow distribution arrangement for a steam generator |
US4158387A (en) * | 1978-04-24 | 1979-06-19 | The Babcock & Wilcox Company | Blowdown apparatus |
DE2949975A1 (de) * | 1978-12-26 | 1980-07-17 | Combustion Eng | Dampferzeugeranordnung fuer kernkraftwerke |
US4261300A (en) * | 1978-12-26 | 1981-04-14 | Combustion Engineering, Inc. | Nuclear steam generator |
EP0023808A2 (en) * | 1979-07-25 | 1981-02-11 | Westinghouse Electric Corporation | Nuclear steam generator |
FR2462655A1 (fr) * | 1979-07-25 | 1981-02-13 | Westinghouse Electric Corp | Distributeur collecteur de boues pour generateur nucleaire de vapeur |
EP0023808A3 (en) * | 1979-07-25 | 1981-11-11 | Westinghouse Electric Corporation | Nuclear steam generator |
US4303043A (en) * | 1979-07-25 | 1981-12-01 | Westinghouse Electric Corp. | Sludge collection system for a nuclear steam generator |
DE3130400A1 (de) * | 1980-07-31 | 1982-06-16 | Framatome, 92400 Courbevoie | Verteiler zur einfuehrung eines fluids in einen dampfgenerator |
US4655846A (en) * | 1983-04-19 | 1987-04-07 | Anco Engineers, Inc. | Method of pressure pulse cleaning a tube bundle heat exchanger |
EP0132112A2 (en) * | 1983-07-13 | 1985-01-23 | Westinghouse Electric Corporation | Sludge removing apparatus for a steam generator |
EP0132112A3 (en) * | 1983-07-13 | 1985-10-02 | Westinghouse Electric Corporation | Sludge removing apparatus for a steam generator |
US4566406A (en) * | 1983-07-13 | 1986-01-28 | Westinghouse Electric Corp. | Sludge removing apparatus for a steam generator |
US4645542A (en) * | 1984-04-26 | 1987-02-24 | Anco Engineers, Inc. | Method of pressure pulse cleaning the interior of heat exchanger tubes located within a pressure vessel such as a tube bundle heat exchanger, boiler, condenser or the like |
EP0161894A2 (en) * | 1984-05-14 | 1985-11-21 | Westinghouse Electric Corporation | Discharge tube for inhibiting stratification in feedwater headers of a steam generator |
EP0161894A3 (en) * | 1984-05-14 | 1986-06-25 | Westinghouse Electric Corporation | Discharge tube for inhibiting stratification in feedwater headers of a steam generator |
US4632068A (en) * | 1984-05-24 | 1986-12-30 | Westinghouse Electric Corp. | Modular sludge collection system for a nuclear steam generator |
EP0183049A1 (en) * | 1984-11-15 | 1986-06-04 | Westinghouse Electric Corporation | Perforated flow distribution plate |
US4736713A (en) * | 1984-11-15 | 1988-04-12 | Westinghouse Electric Corp. | Foraminous or perforated flow distribution plate |
US4649868A (en) * | 1984-12-03 | 1987-03-17 | Westinghouse Electric Corp. | Sludge trap with internal baffles for use in nuclear steam generator |
EP0185174A1 (en) * | 1984-12-03 | 1986-06-25 | Westinghouse Electric Corporation | Steamgenerator having a sludge trap |
US4762091A (en) * | 1984-12-03 | 1988-08-09 | Westinghouse Electric Corp. | Sludge trap with internal baffles for use in nuclear steam generator |
US4773357A (en) * | 1986-08-29 | 1988-09-27 | Anco Engineers, Inc. | Water cannon apparatus and method for cleaning a tube bundle heat exchanger, boiler, condenser, or the like |
US4706613A (en) * | 1986-10-17 | 1987-11-17 | Westinghouse Electric Corp. | Steam generator having an auxiliary recirculation path |
WO1990012983A1 (en) * | 1989-04-25 | 1990-11-01 | Kindling, Alexander, T. | Method and apparatus for organizing the flow of fluid in a vertical steam generator |
US4972804A (en) * | 1989-04-25 | 1990-11-27 | Alexander T. Kindling | Method and apparatus for organizing the flow of fluid in a vertical steam generator |
US5088451A (en) * | 1990-04-09 | 1992-02-18 | Westinghouse Electric Corp. | Sludge removal system for removing sludge from heat exchangers |
EP0545800A1 (fr) * | 1991-12-02 | 1993-06-09 | Framatome | Dispositif de piègeage de corps migrants à l'intérieur du circuit secondaire d'un générateur de vapeur |
FR2684433A1 (fr) * | 1991-12-02 | 1993-06-04 | Framatome Sa | Dispositif de piegeage de corps migrants a l'interieur du circuit secondaire d'un generateur de vapeur. |
US5390219A (en) * | 1991-12-02 | 1995-02-14 | Framatome | Device for trapping migrating bodies within the secondary circuit of a steam generator |
FR2690504A1 (fr) * | 1992-04-28 | 1993-10-29 | Framatome Sa | Générateur de vapeur à dispositif de distribution et de réparation de l'eau alimentaire et de l'eau de recirculation dans la partie secondaire. |
EP0568434A1 (fr) * | 1992-04-28 | 1993-11-03 | Framatome | Générateur de vapeur à dispositif de distribution et de répartition de l'eau alimentaire et de l'eau de recirculation dans la partie secondaire |
US5323736A (en) * | 1992-04-28 | 1994-06-28 | Framatome | Steam generator with device for the distribution of feed water and recirculation water in the secondary part |
US5329886A (en) * | 1993-08-02 | 1994-07-19 | Westinghouse Electric Corporation | Steam generator |
US20080121194A1 (en) * | 2006-11-28 | 2008-05-29 | Prabhu Padmanabha J | Steam generator loose parts collector weir |
US7434546B2 (en) | 2006-11-28 | 2008-10-14 | Westinghouse Electric Co. Llc | Steam generator loose parts collector weir |
US8953735B2 (en) | 2006-11-28 | 2015-02-10 | Westinghouse Electric Company Llc | Steam generator dual system sludge and loose parts collector |
US11371788B2 (en) * | 2018-09-10 | 2022-06-28 | General Electric Company | Heat exchangers with a particulate flushing manifold and systems and methods of flushing particulates from a heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
SE7508573L (sv) | 1976-01-30 |
CA1014029A (en) | 1977-07-19 |
DE2532200B2 (de) | 1977-05-05 |
DE2532200A1 (de) | 1976-02-19 |
GB1492849A (en) | 1977-11-23 |
JPS5137302A (en) | 1976-03-29 |
ES439630A1 (es) | 1977-03-16 |
JPS529763B2 (xx) | 1977-03-18 |
FR2280860A1 (fr) | 1976-02-27 |
SE402158B (sv) | 1978-06-19 |
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