EP0073851A1 - Générateur de vapeur à deux passages de gaz verticaux reliés par un passage de gaz transversal - Google Patents

Générateur de vapeur à deux passages de gaz verticaux reliés par un passage de gaz transversal Download PDF

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Publication number
EP0073851A1
EP0073851A1 EP81107837A EP81107837A EP0073851A1 EP 0073851 A1 EP0073851 A1 EP 0073851A1 EP 81107837 A EP81107837 A EP 81107837A EP 81107837 A EP81107837 A EP 81107837A EP 0073851 A1 EP0073851 A1 EP 0073851A1
Authority
EP
European Patent Office
Prior art keywords
train
vertical
steam generator
transverse
generator according
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
EP81107837A
Other languages
German (de)
English (en)
Other versions
EP0073851B2 (fr
EP0073851B1 (fr
Inventor
Karl Rees
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4299720&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0073851(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0073851A1 publication Critical patent/EP0073851A1/fr
Application granted granted Critical
Publication of EP0073851B1 publication Critical patent/EP0073851B1/fr
Publication of EP0073851B2 publication Critical patent/EP0073851B2/fr
Expired 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
    • F22B37/24—Supporting, suspending, or setting arrangements, e.g. heat shielding
    • F22B37/244—Supporting, suspending, or setting arrangements, e.g. heat shielding for water-tube steam generators suspended from the top

Definitions

  • the invention relates to a steam generator with the features according to the preamble of patent claim 1.
  • the two vertical trains are suspended on the boiler frame by tension members extending from the upper edge of the tube walls.
  • the rear wall of the first vertical train and the front wall of the second vertical train are suspended via pipes which form continuations of the two walls mentioned and which are loosened and passed through the transverse train. With this loosening, the majority of the pipes emerging from the wall are cranked out, and only a few pipes are currently running through the transverse train.
  • This object is achieved by the features of the characterizing part of claim 1.
  • This design eliminates the need for support tubes that traverse the transverse train.
  • the invention has the advantages that the above the supporting - systems part of the boiler steel structure located can be more easily designed so that the pipes in the upper part of the two vertical trains are less highly stressed and can that follows the installation of the steam generator more quickly because the surface banks can still be installed when the combustion chamber is already completed.
  • the displacement of the vertical trains due to thermal expansion is also lower at their lower end.
  • the feature of claim 3 has the advantage of uniform wall load because the inevitable M assabweichonne and impact setting error less.
  • the adjustability according to claim 4 allows manufacturing and assembly errors to be compensated.
  • hydraulic presses according to claim 5 makes it easier to adjust the pendulum supports and the tension elements.
  • the feature according to claim 6 evens out the introduction of the support forces into the tube walls, thereby avoiding inadmissibly high local stresses.
  • six pillars 2 are erected on foundations 1 for a steam generator, which together with an upper frame 4 and a lower frame 5 form a boiler frame in the form of a stylized figure eight.
  • a steam generator which together with an upper frame 4 and a lower frame 5 form a boiler frame in the form of a stylized figure eight.
  • four pipe walls 12, 13 and 12 ', 14 are suspended from two support systems 7 and 8, which limit a first vertical train 10 and a second vertical train 11, through which the flue gases flow in succession (arrows A, B ).
  • the lower part of the first vertical train 10 forms the combustion chamber of the steam generator.
  • the two vertical trains 10 and 11 are connected above the support systems 7 and 8 by a transverse train 15 leading from the rear wall 13 of the first vertical train 10 to the front wall 14 of the second vertical train 11.
  • the tube walls 12, 13 and 12 ', 14 consist of vertical tubes 17 which are tightly welded to one another via webs 20.
  • sheet metal strips 21 are welded to the webs 20 in the area of the support systems 7 and 8, which are group-like comb-like are combined on connecting plates 23.
  • Two of these connecting plates 23 are hinged to a three-hole weighing plate 24, which is pivotally attached to a support band 25.
  • Each carrier tape 25 has two claws 26, 27, between which one end of a J -shaped lever 30 designed as a box girder projects.
  • a vertical mandrel 31 is inserted through this lever end and the two claws 26, 27, about the axis of which the lever can be rotated.
  • Each two-armed lever 30 is supported by a pendulum support 35 on a cantilever arm 36 of the lower frame 5, while a tension element 37 connects the other end of each lever 30 to an eyelet 38 of the frame 5.
  • Each pendulum support 35 consists of a short threaded bolt 40, which is extended up and down by a welded pipe section 41 and 42, respectively.
  • a spherical cap 45 On the upper end of the pipe section 41 there is a spherical cap 45, on which a pan 46 sits, which is fastened to the upper flange of the lever 30.
  • the lower pipe section 42 is telescopically inserted in a pipe section 48 which is connected to a pan 49 at a lower end. This pan 49 rests on a cap 50 which is welded onto the arm 36.
  • On the threaded bolt 40 sits a nut 52 turned on one side, which is supported by a plate 53 on a set of disc springs 55, the lowest of which is on the upper end face of the pipe section 48 is present.
  • a recess 57 is provided in the lower flange of each lever 30, through which a pendulum support 35 extends with play.
  • each lever 30 is reinforced by two sheets 58 which are welded to the outside of the webs of the box-shaped lever 30.
  • Fig. 3 between the plate 53 and the lower flange of the lever 30 two small hydraulic presses 60, 61 are indicated with dashed lines, the function of which is described below.
  • belts 64 and 65 are provided a little below the levers 30 on the vertical trains 10 and 11, respectively.
  • the belt 64 consists of four bending beams 70 to 73 surrounding the train 10 and the belt 65 consists of four bending beams 70 'to 73' surrounding the train 11.
  • the bending beams are, as usual, articulated at their ends via tabs in a manner not shown on the pipe walls 12, 13 or 12 ', 14 and connected to the associated pipe wall by a plurality of supports 66 distributed over the length of the bending beams. Straps composed in the same way are distributed over the entire height of the vertical trains. These tapes prevent the pipe walls from bulging outwards under the internal pressure prevailing in the trains.
  • the bending beams 71 and 72 which run transversely to the layout of the steam generator, are supported on the frame 5 by supports 75 against displacement in the transverse direction of the steam generator (FIG. 2).
  • the bending beam 71 is additionally connected to the central beam of the lower frame 5 via tabs 76.
  • the bending beams 71 'and 72' of the belt 65 of the train 11 are supported by supports 75 'and tabs 76' on the part of the lower frame 5 surrounding this train.
  • Thermal insulation 80 is provided on the outside of the tube walls 12, 13 and 12 '14 attached, which is indicated in Fig. 3.
  • the tubes 17 of the front wall 12 of the vertical train 10 open with their upper ends into a collector 78, while the tubes 17 of the rear wall 13 of this train lead to a collector 79 which is arranged parallel to the rear wall 13 below the transverse train 15.
  • the belt system 70 to 76 together with the parts 21 to 38 forms the support system 7 of the vertical train 10.
  • the support system 8 of the train 11 is formed by the belt system 70 'to 76' with associated parts 21 to 38.
  • the large number of two-armed levers 30 with the pendulum supports 35 and the tension elements 37 only become a stable support system of a vertical train in that the ends of the levers 30 are fixed in the horizontal direction. This fixation takes place via the mandrels 31, the carrying straps 25 etc. and finally through the supports 75.75 'and the tabs 76.76' between the straps 64 and 65 and the boiler frame.
  • the bending supports 71 and 71 ' can only move in the vertical direction in space because of the supports 75 and 75' and the tabs 76 and 76 ', this vertical displacement remaining very small since the straps are only slightly below the Support are arranged.
  • a fixed point F or F 'thus arises in the middle of the tube walls 13 and 14 at the level of the support on the outer surface of the insulation 80, from which the thermal expansion movements run in a radial manner.
  • the transverse pull 15 is designed to be flexible in this arrangement, so that it can absorb its own longitudinal expansion itself.
  • the pendulum supports 35 and the tension elements 37 are expediently arranged on the lower frame 5 in such a way that they are vertical with a medium expansion deflection. In this way, the height differences remain the same Heating of the steam generator from a cold state minimal.
  • the length of the pendulum support and the length of the tension element are expediently chosen to be about ten times as long as the greatest horizontal expansion that occurs.
  • the pendulum supports 35 are designed to be adjustable in length.
  • the two hydraulic presses 60 and 61 are placed on the plate 53 on both sides of the upper pipe section 41 and are subjected to such pressure that the total force exerted on the underside of the lever 30 corresponds to the proportion of the load corrected by the lever ratio, which corresponds to the associated carrying band 25 should be omitted. If this pressure is set, the nut 52 is screwed down against the plate 53 and tightened moderately. The two hydraulic presses 60 and 61 can then be relaxed and removed.
  • the laterally flexible support by means of pendulum supports and tension elements means that the carrying straps 25 cannot deflect laterally. This condition is met by the lateral support of the straps 64 and 65 by the supports 75 and 75 'and tabs 76 and 76'. It may be expedient to support the remaining straps, not shown, in an analogous manner on the boiler frame.
  • the weight of the transverse train 15 can be transmitted to the wall sections of the vertical trains above the support systems 7 and 8 by long straps which are reinforced to absorb gravitational forces.
  • constant hangers can also be provided, by means of which the transverse pull 15 can be suspended from the upper frame 4 of the boiler frame.
  • the pipe walls 12, 13 and 12 ', 14 of the vertical trains 10 and 11 are expediently created from the support systems 7 and 8, proceeding downwards.
  • the bundle heating surfaces can be installed over the support systems 7 and 8, while the burners are already being installed on the combustion chamber of the vertical train 10. From the bundle heating surfaces which come to lie in the space above the combustion chamber of the vertical train 10 and in the vertical train 11, the support tubes 81 and 81 'can be seen in FIG and are attached to the frame 4 in a known manner.
  • control and the lines to the burners can be installed at a time when the cross-train 15 and the upper sections of the vertical trains 10 and 11 are installed.
  • Such a procedure allows the path of the assembly process, which is critical in the scheduling, to be shortened considerably.
  • the walls forming the second vertical train can consist of pipes not welded in a gas-tight manner; this train would then be created in skin-casing design.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
EP81107837A 1981-09-09 1981-10-02 Générateur de vapeur à deux passages de gaz verticaux reliés par un passage de gaz transversal Expired EP0073851B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH581281 1981-09-09
CH5812/81 1981-09-09

Publications (3)

Publication Number Publication Date
EP0073851A1 true EP0073851A1 (fr) 1983-03-16
EP0073851B1 EP0073851B1 (fr) 1985-01-16
EP0073851B2 EP0073851B2 (fr) 1988-12-07

Family

ID=4299720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107837A Expired EP0073851B2 (fr) 1981-09-09 1981-10-02 Générateur de vapeur à deux passages de gaz verticaux reliés par un passage de gaz transversal

Country Status (6)

Country Link
US (1) US4428329A (fr)
EP (1) EP0073851B2 (fr)
JP (1) JPS5860105A (fr)
CA (1) CA1201026A (fr)
DE (1) DE3168347D1 (fr)
FI (1) FI69920C (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764814A1 (fr) * 1995-09-21 1997-03-26 GEC ALSTHOM Stein Industrie Dispositif de liaison de deux parties d'une chaudière
DE19909267A1 (de) * 1999-03-03 2000-09-07 Abb Alstom Power Ch Ag Kesselaufhängung
WO2014053809A2 (fr) * 2012-10-04 2014-04-10 Doosan Babcock Limited Structure de chaudière et procédé d'assemblage
WO2014199016A2 (fr) * 2013-06-11 2014-12-18 Andritz Oy Procédé et système pour surveiller les changements de masse des échangeurs de chaleur d'une chaudière à vapeur
WO2019076427A1 (fr) 2017-10-16 2019-04-25 Sumitomo SHI FW Energia Oy Construction de chaudière
WO2019086112A1 (fr) 2017-11-01 2019-05-09 Sumitomo SHI FW Energia Oy Système de chaudière avec construction de support

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940025A (en) * 1989-03-06 1990-07-10 Westinghouse Electric Corp. Steam generator upper support having thermal displacement compensation
US5722354A (en) * 1995-12-08 1998-03-03 Db Riley, Inc. Heat recovery steam generating apparatus
DK0980496T3 (da) * 1997-05-09 2002-10-14 Siemens Ag Gennemløbsdampgenerator i totræksudførelse
US8520794B2 (en) * 2005-06-16 2013-08-27 General Electric Company Method and device for facilitating a uniform loading condition for a plurality of support members supporting a steam dryer in a nuclear reactor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312876A (en) * 1942-01-23 1943-03-02 Gen Electric Elastic fluid generator
FR1387959A (fr) * 1963-12-18 1965-02-05 Babcock & Wilcox Co Perfectionnements aux groupes de chauffage de fluide à murs refroidis par fluide
US3612006A (en) * 1969-11-26 1971-10-12 Babcock & Wilcox Co Expansion seal
DE1551052A1 (de) * 1964-03-14 1972-01-05 Siemens Ag Durchlaufkessel
FR2184353A5 (fr) * 1972-05-10 1973-12-21 Waagner Biro Ag
FR2348435A1 (fr) * 1976-04-13 1977-11-10 Sulzer Ag Dispositif de suspension flexible d'une paroi tubulaire de generateur de vapeur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH577117A5 (fr) * 1974-04-29 1976-06-30 Sulzer Ag
DE2821567A1 (de) * 1978-05-17 1979-11-22 Kraftwerk Union Ag Durchlaufdampferzeuger in mehrzugbauweise mit an tragrohren aufgehaengter rueckwand

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312876A (en) * 1942-01-23 1943-03-02 Gen Electric Elastic fluid generator
FR1387959A (fr) * 1963-12-18 1965-02-05 Babcock & Wilcox Co Perfectionnements aux groupes de chauffage de fluide à murs refroidis par fluide
DE1551052A1 (de) * 1964-03-14 1972-01-05 Siemens Ag Durchlaufkessel
US3612006A (en) * 1969-11-26 1971-10-12 Babcock & Wilcox Co Expansion seal
FR2184353A5 (fr) * 1972-05-10 1973-12-21 Waagner Biro Ag
FR2348435A1 (fr) * 1976-04-13 1977-11-10 Sulzer Ag Dispositif de suspension flexible d'une paroi tubulaire de generateur de vapeur

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739179A1 (fr) * 1995-09-21 1997-03-28 Gec Alsthom Stein Ind Dispositif de liaison de deux parties d'une chaudiere
EP0764814A1 (fr) * 1995-09-21 1997-03-26 GEC ALSTHOM Stein Industrie Dispositif de liaison de deux parties d'une chaudière
DE19909267B4 (de) * 1999-03-03 2015-07-09 Alstom Technology Ltd. Kesselaufhängung
DE19909267A1 (de) * 1999-03-03 2000-09-07 Abb Alstom Power Ch Ag Kesselaufhängung
WO2014053809A2 (fr) * 2012-10-04 2014-04-10 Doosan Babcock Limited Structure de chaudière et procédé d'assemblage
WO2014053809A3 (fr) * 2012-10-04 2014-12-31 Doosan Babcock Limited Structure de chaudière et procédé d'assemblage
US20150241054A1 (en) * 2012-10-04 2015-08-27 Doosan Babcock Limited Boiler structure and method of assembly
WO2014199016A2 (fr) * 2013-06-11 2014-12-18 Andritz Oy Procédé et système pour surveiller les changements de masse des échangeurs de chaleur d'une chaudière à vapeur
WO2014199016A3 (fr) * 2013-06-11 2015-04-09 Andritz Oy Procédé et système pour surveiller les changements de masse des échangeurs de chaleur d'une chaudière à vapeur
RU2658720C2 (ru) * 2013-06-11 2018-06-22 Андритц Ой Способ и система для мониторинга изменений массы теплообменников парового котла
US10132495B2 (en) 2013-06-11 2018-11-20 Andritz Oy Method and system for monitoring the mass changes of heat exchangers of a steam boiler
WO2019076427A1 (fr) 2017-10-16 2019-04-25 Sumitomo SHI FW Energia Oy Construction de chaudière
US11209158B2 (en) 2017-10-16 2021-12-28 Sumitomo SHI FW Energia Oy Boiler construction having a boiler pressure body support system
EP3982043A1 (fr) 2017-10-16 2022-04-13 Sumitomo SHI FW Energia Oy Construction de chaudière
WO2019086112A1 (fr) 2017-11-01 2019-05-09 Sumitomo SHI FW Energia Oy Système de chaudière avec construction de support
US11143398B2 (en) 2017-11-01 2021-10-12 Sumitomo SHI FW Energia Oy Boiler system with a support construction

Also Published As

Publication number Publication date
FI822644L (fi) 1983-03-10
FI822644A0 (fi) 1982-07-28
JPS5860105A (ja) 1983-04-09
EP0073851B2 (fr) 1988-12-07
CA1201026A (fr) 1986-02-25
FI69920B (fi) 1985-12-31
FI69920C (fi) 1986-05-26
DE3168347D1 (en) 1985-02-28
US4428329A (en) 1984-01-31
EP0073851B1 (fr) 1985-01-16

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