FR2597576A1 - Improvements to the manufacture of the walls of the chambers, particularly the combustion chambers, of steam generators - Google Patents

Improvements to the manufacture of the walls of the chambers, particularly the combustion chambers, of steam generators Download PDF

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Publication number
FR2597576A1
FR2597576A1 FR8605799A FR8605799A FR2597576A1 FR 2597576 A1 FR2597576 A1 FR 2597576A1 FR 8605799 A FR8605799 A FR 8605799A FR 8605799 A FR8605799 A FR 8605799A FR 2597576 A1 FR2597576 A1 FR 2597576A1
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FR
France
Prior art keywords
tubes
chamber
additional
base
chamber wall
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Granted
Application number
FR8605799A
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French (fr)
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FR2597576B1 (en
Inventor
Wladimir Linzer
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MEDITERRANEE CONST NAVALES IND
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MEDITERRANEE CONST NAVALES IND
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Application filed by MEDITERRANEE CONST NAVALES IND filed Critical MEDITERRANEE CONST NAVALES IND
Priority to FR8605799A priority Critical patent/FR2597576B1/en
Publication of FR2597576A1 publication Critical patent/FR2597576A1/en
Application granted granted Critical
Publication of FR2597576B1 publication Critical patent/FR2597576B1/en
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
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes
    • F22B37/141—Supply mains, e.g. rising mains, down-comers, in connection with water tubes involving vertically-disposed water tubes, e.g. walls built-up from vertical tubes
    • 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
    • F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
    • F22B37/201—Suspension and securing arrangements for walls built-up from tubes

Abstract

Wall of a chamber, particularly a combustion chamber of steam generators, of the type consisting of an assembly of tubes joined together by flat iron elements so as to seal the chamber totally, characterised in that the said wall comprises several circuits, each of which circuits can be supplied with a different fluid, the wall consisting of, on the one hand, basic tubes 12, 12' which form one circuit and, on the other hand, additional tubes 16, 16' forming one or more other circuits inserted between the basic tubes, inside the chamber 10.

Description

La présente invention concerne la réalisation des parois des chambres de combustion, ou de chambres quelconques, des générateurs de vapeur à circulation naturelle, assistée ou forcée. The present invention relates to the production of the walls of combustion chambers, or of any chambers, of steam generators with natural circulation, assisted or forced.

A l'heure actuelle les parois des chambres de combustion des générateurs de vapeur sont constituées de tubes dans lesquels circule un fluide (eau, vapeur ou mélange eau-vapeur), ces tubes étant assemblés par tout moyen approprié. At present, the walls of the combustion chambers of the steam generators consist of tubes in which a fluid (water, steam or water-steam mixture) circulates, these tubes being assembled by any suitable means.

Ces solutions connues ne permettent pas de choisir à volonté la surface d'échange de chaleur entre la chambre de combustion, ou les chambres quelconques, et le ou les fluides en circulation.These known solutions do not allow to choose at will the heat exchange surface between the combustion chamber, or any chambers, and the circulating fluid (s).

La présente invention se propose d'apporter des perfectionnements à ces parois évitant les inconvénients des solutions antérieures. The present invention proposes to provide improvements to these walls avoiding the drawbacks of the previous solutions.

A cet effet, les parois comportent plusieurs circuits, chaque circuit pouvant être alimenté par un fluide différent, les parois étant donc constituées d'une part de tubes de base qui constituent un circuit et d'autre part de tubes supplémentaires constituant un ou plusieurs circuits, s'insérant entre les tubes de base, à l'intérieur de la chambre. Les surfaces d'échange calorifique de chacun des circuits peuvent ainsi être modifies à la construction, selon les caractéristiques du générateur de vapeur. For this purpose, the walls have several circuits, each circuit being able to be supplied by a different fluid, the walls therefore being made up on the one hand of base tubes which constitute a circuit and on the other hand of additional tubes constituting one or more circuits , fitting between the base tubes, inside the chamber. The heat exchange surfaces of each of the circuits can thus be modified during construction, according to the characteristics of the steam generator.

Selon une caractéristique de cette invention, le fluide qui circule dans les tubes de base peut être différent de celui qui circule dans les tubes supplémentaires ou il peut être constitué par le même fluide dans un état ou une phase différents. According to a characteristic of this invention, the fluid which circulates in the basic tubes can be different from that which circulates in the additional tubes or it can be constituted by the same fluid in a different state or phase.

Selon une autre caractéristique de cette invention, les tubes supplémentaires peuvent être uniques, doubles ou plus nombreux et ils sont montés sur les plats de liaison des tubes de base par l'intermédiaire de liaisons soudées sur les plats et sur les tubes supplémentaires et/ou à l'aide de guides de liaison soudés sur les tubes de base, en regard des tubes supplémentaires, ces liaisons étant conçues de manière à permettre les dilatations différentielles. According to another characteristic of this invention, the additional tubes can be single, double or more numerous and they are mounted on the connection plates of the base tubes by means of welded connections on the plates and on the additional tubes and / or using connection guides welded to the base tubes, facing the additional tubes, these connections being designed so as to allow differential expansion.

D'autres caractéristiques et avantages de cette invention ressortiront de la description faite ci-après en référence aux dessins annexés qui en illustrent des exemples de réalisation dépourvus de tout caractère limitatif. Sur les dessins
- les figures 1 à 7 sont des vues en coupe horizontale de portions de parois de chambres réalisées selon l'invention, et
- les figures 8 et 9 sont respectivement des vues en élévation latérale des figures 1 à 3, depuis l'intérieur de la chambre.Other characteristics and advantages of this invention will emerge from the description given below with reference to the appended drawings which illustrate exemplary embodiments thereof without any limiting character. On the drawings
FIGS. 1 to 7 are views in horizontal section of portions of chamber walls produced according to the invention, and
- Figures 8 and 9 are respectively views in side elevation of Figures 1 to 3, from inside the chamber.

Comme on le voit dans le premier exemple de réalisation de l'invention illustré par les figures 1 et 8, la paroi de la chambre 10, par exemple la chambre de combustion d'un générateur de vapeur à circulation naturelle, assistée ou forcée, est constituée par des tubes de base, tel que 12, 12', reliés entre eux par des plats de liaison 14 soudés sur les tubes 12, 12'. Dans ce mode de réalisation préféré, les tubes de base 12, 12' sont des tubes de géométrie externe non circulaire, en oméga (ils peuvent sans sortir du cadre de l'invention, être octogonaux, en forme de super oméga ou autre) et ils sont reliés à l'aide de plats 14 de largeur relativement importante. Cet assemblage tubes de base et plats de liaison permet d'assurer une étanchéité complète de la chambre 10. As can be seen in the first embodiment of the invention illustrated by FIGS. 1 and 8, the wall of the chamber 10, for example the combustion chamber of a steam generator with natural circulation, assisted or forced, is constituted by base tubes, such as 12, 12 ', interconnected by connecting plates 14 welded to the tubes 12, 12'. In this preferred embodiment, the base tubes 12, 12 ′ are tubes of non-circular external geometry, in omega (they can, without departing from the scope of the invention, be octagonal, in the form of a super omega or other) and they are connected using plates 14 of relatively large width. This assembly of base tubes and connecting plates ensures complete sealing of the chamber 10.

Selon l'invention, les tubes de base peuvent être circulaires, lisses ou à ailettes (voir les figures 2, 3, 5, 6 et 7). According to the invention, the base tubes can be circular, smooth or finned (see Figures 2, 3, 5, 6 and 7).

Pour éviter tout échauffement anormal,les plats de liaison tels que 14, sont recouverts côté chambre 10, selon l'invention, de tubes supplémentaires tels que 16, 16', les tubes de base 12, 12' et les tubes supplémentaires 16, 16' étant refroidis par circulation interne d'un fluide pouvant être par exemple de l'eau, de la vapeur ou un mélange ou émulsion eau-vapeur. De préférence, le fluide circulant dans les tubes de base sera différent de celui circulant dans les tubes supplémentaires ou constitué du même fluide mais sous un état ou une phase différent. Par exemple on peut faire circuler de l'eau ou une émulsion eau-vapeur dans les tubes de base 12, 12' et de la vapeur, éventuellement surchauffée dans les tubes supplémentaires 16, 16'.Bien entendu, les caractéristiques de températures et de pression peuvent être différentes entre le ou les fluides circulant dans les tubes de base et les tubes supplémentaires. To avoid any abnormal heating, the connection plates such as 14 are covered on the chamber side 10, according to the invention, with additional tubes such as 16, 16 ', the base tubes 12, 12' and the additional tubes 16, 16 'being cooled by internal circulation of a fluid which may for example be water, steam or a water-steam mixture or emulsion. Preferably, the fluid circulating in the base tubes will be different from that circulating in the additional tubes or made up of the same fluid but in a different state or phase. For example, water or a water-steam emulsion can be circulated in the base tubes 12, 12 ′ and steam, possibly superheated in the additional tubes 16, 16 ′. Of course, the temperature and pressure can be different between the fluid (s) circulating in the base tubes and the additional tubes.

De préférence, les tubes supplémentaires 16, 16' sont des tubes lisses, uniques, doubles ou multiples. Ils sont maintenus sur les plats de liaison 14 à l'aide de pattes de liaison, telle que 18 soudées d'une part sur les tubes supplémentaires et fixées, par tout moyen approprié sur les plats 14. Par ailleurs, on prévoit des guides de liaison 20, 20' soudés sur les tubes de base 12, 12' en regard des tubes supplémentaires. Ce mode de fixation et de guidage des tubes supplémentaires permet les dilatations différentielles. Dans le cas où le mode de fixation détruit l'étanchéité de la paroi de la chambre 10, on prévoit un moyen complémentaire pour rétablir cette étanchéité, ce moyen pouvant être une botte fixée à la paroi. Preferably, the additional tubes 16, 16 'are smooth, single, double or multiple tubes. They are held on the connection plates 14 by means of connection tabs, such as 18 welded on the one hand to the additional tubes and fixed, by any appropriate means to the plates 14. Furthermore, guides are provided. connection 20, 20 'welded to the base tubes 12, 12' opposite the additional tubes. This method of fixing and guiding the additional tubes allows differential expansion. In the case where the method of attachment destroys the tightness of the wall of the chamber 10, an additional means is provided to restore this tightness, this means possibly being a boot fixed to the wall.

Dans l'exemple de réalisation illustré par la figure 2, les tubes supplémentaires 22. 22', 24, 24' sont des tubes circulaires à ailettes, reliés entre eux par soudure de leurs ailettes, sur tout ou partie de leur longueur, et qui sont fixés sur les plats tels que 14, à l'aide de pattes de liaison 18. In the embodiment illustrated in FIG. 2, the additional tubes 22, 22 ′, 24, 24 ′ are circular tubes with fins, connected together by welding their fins, over all or part of their length, and which are fixed on the dishes such as 14, using connecting lugs 18.

Dans la variante illustrée par les figures 3 et 9, les tubes supplémentaires 28, 28' sont des tubes circulaires lisses, maintenus entre les tubes de base par des guides de liaison 20, 20'.  In the variant illustrated in FIGS. 3 and 9, the additional tubes 28, 28 ′ are smooth circular tubes, held between the base tubes by connection guides 20, 20 ′.

Selon un autre exemple de réalisation, les tubes supplémentaires sont des tubes de géométrie externe non circulaire, par exemple omega (tube 30, 30' figure 4), super-omega ou octogonaux et ils sont reliés entre eux par soudure et maintenus entre les tubes de base 12, 12' par les guides de liaison 20, 20'. According to another exemplary embodiment, the additional tubes are tubes of non-circular external geometry, for example omega (tube 30, 30 'figure 4), super-omega or octagonal and they are connected together by welding and held between the tubes base 12, 12 'by the connection guides 20, 20'.

Enfin, toujours selon l'invention, la face interne de la chambre 10 peut être agencée de différentes manières
a) les génératrices des tubes de base 12, 12' et des tubes supplémentaires sont sittees dans un même plan P (figure 5) ; dans cette variante les tubes supplémentaires sont reliés par des ailettes 32, soudées sur tout ou partie de la longueur
b) le plan formé par les génératrices des tubes de base 12, 12' diffère de celui formé par les génératrices de tubes supplémentaires (figures 6 et 7).Finally, still according to the invention, the internal face of the chamber 10 can be arranged in different ways.
a) the generators of the base tubes 12, 12 ′ and of the additional tubes are seated in the same plane P (FIG. 5); in this variant the additional tubes are connected by fins 32, welded over all or part of the length
b) the plane formed by the generatrices of the base tubes 12, 12 ′ differs from that formed by the generatrices of additional tubes (FIGS. 6 and 7).

Il demeure bien entendu que cette invention n'est pas limitée aux divers exemples de réalisation décrits et représentés, mais qu'elle en englobe toutes les variantes.  It remains to be understood that this invention is not limited to the various embodiments described and shown, but that it encompasses all variants thereof.

Claims (8)

REVENDICATIONS 1- Paroi de chambre, notamment de chambre de combustion de générateurs de vapeur du type constitué par un assemblage de tubes reliés entre eux par des fers plats de manière à assurer une étanchéité totale de la chambre, caractérisée en ce que ladite paroi comporte plusieurs circuits, chaque circuit pouvant être alimenté par un fluide différent, la paroi étant constituée d'une part de tubes de base (12, 12') qui constituent un circuit et d'autre part de tubes supplémentaires (16, 16') constituant un ou plusieurs autres circuits s'insérant entre les tubes de base, à l'intérieur de la chambre (10). 1- Chamber wall, in particular of the combustion chamber of steam generators of the type constituted by an assembly of tubes connected together by flat irons so as to ensure total sealing of the chamber, characterized in that said wall comprises several circuits , each circuit being able to be supplied with a different fluid, the wall consisting on the one hand of base tubes (12, 12 ') which constitute a circuit and on the other hand of additional tubes (16, 16') constituting one or several other circuits inserted between the base tubes, inside the chamber (10). 2 - Paroi de chambre selon la renvendication 1 caractérisée en ce que les tubes supplémentaires sont uniques, doubles ou multiples et ils sont montés sur les plats de liaison (14) des tubes de base par l'intermédiaire de liaisons (18) soudées entre les plats et sur les tubes supplémentaires et/ou à l'-aide de guides de liaison (20, 20') soudés sur les tubes de base, en regard des tubes supplémentaires, ces liaisons étant conçues de manière à permettre les dilatations différentielles. 2 - Chamber wall according to claim 1 characterized in that the additional tubes are single, double or multiple and they are mounted on the connection plates (14) of the base tubes by means of connections (18) welded between the flat and on the additional tubes and / or using connection guides (20, 20 ') welded to the base tubes, facing the additional tubes, these connections being designed so as to allow differential expansion. 3 - Paroi de chambre selon l'une des revendications précédentes, caractérisée e'n ce que les tubes supplémentaires sont des tubes lisses de forme circulaire (16, 16' ; 28, 28'), reliés éventuellement entre par des ailettes soudées sur tout ou partie de leur longueur. 3 - Chamber wall according to one of the preceding claims, characterized in that the additional tubes are smooth circular tubes (16, 16 '; 28, 28'), optionally connected between by fins welded on all or part of their length. 4 - Paroi de chambre selon l'une quelconque des revendications précédentes caractérisée en ce que les tubes supplémentaires sont des tubes à ailettes (22, 22' ; 24, 24') reliés entre eux par soudure de leurs ailettes.4 - Chamber wall according to any one of the preceding claims, characterized in that the additional tubes are finned tubes (22, 22 '; 24, 24') connected together by welding their fins. 5 - Paroi de chambre selon l'une quelconque des revendications précédentes caractérisée en ce que les tubes supplémentaires sont des tubes de géométrie externe non circulaire : omega (12, 12'), super-omega, octogonaux. 5 - Chamber wall according to any one of the preceding claims, characterized in that the additional tubes are tubes of non-circular external geometry: omega (12, 12 '), super-omega, octagonal. 6 - Paroi de chambre selon l'une quelconque des revendications précédentes caractérisée en ce que la face interne de la chambre est agencée de manière que les génératrices des tubes de base et des tubes supplémentaires sont situées dans un même plan (8). 6 - Chamber wall according to any one of the preceding claims, characterized in that the internal face of the chamber is arranged so that the generatrices of the base tubes and of the additional tubes are located in the same plane (8). 7 - Paroi de chambre selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le plan formé par les génératrices des tubes de base diffère du plan formé par les génératrices des tubes supplémentaires. 7 - Chamber wall according to any one of claims 1 to 6, characterized in that the plane formed by the generatrices of the base tubes differs from the plane formed by the generatrices of the additional tubes. 8 - Paroi de chambre selon l'une des revendications précédentes caractérisée en ce que les tubes de base peuvent être circulaires, lisses ou à ailettes.  8 - Chamber wall according to one of the preceding claims characterized in that the base tubes can be circular, smooth or finned.
FR8605799A 1986-04-22 1986-04-22 IMPROVEMENTS TO THE REALIZATION OF THE WALLS OF THE CHAMBERS, ESPECIALLY OF COMBUSTION, OF THE STEAM GENERATORS Expired FR2597576B1 (en)

Priority Applications (1)

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FR8605799A FR2597576B1 (en) 1986-04-22 1986-04-22 IMPROVEMENTS TO THE REALIZATION OF THE WALLS OF THE CHAMBERS, ESPECIALLY OF COMBUSTION, OF THE STEAM GENERATORS

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FR8605799A FR2597576B1 (en) 1986-04-22 1986-04-22 IMPROVEMENTS TO THE REALIZATION OF THE WALLS OF THE CHAMBERS, ESPECIALLY OF COMBUSTION, OF THE STEAM GENERATORS

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FR2597576A1 true FR2597576A1 (en) 1987-10-23
FR2597576B1 FR2597576B1 (en) 1989-06-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103440A1 (en) * 1991-02-01 1992-08-06 Ver Energiewerke Ag Boiler tube protection system - has slotted wear protection tubes engaged by hooked guides on heater tubes
CN101749689B (en) * 2008-12-10 2011-08-31 中冶赛迪工程技术股份有限公司 Evaporation cooling flue
CN105276609A (en) * 2015-11-16 2016-01-27 无锡华光锅炉股份有限公司 Connecting device for partition walls in pulverized coal boiler of reheater

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE063551T2 (en) 2017-10-16 2024-01-28 Sumitomo SHI FW Energia Oy Middle-supported boiler construction

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR689619A (en) * 1929-02-09 1930-09-09 Babcock & Wilcox France Improvements in the combination of water-cooled boiler walls, and superheaters
GB835567A (en) * 1956-12-04 1960-05-25 Babcock & Wilcox Ltd Improvements in or relating to furnace chamber walls
FR1229638A (en) * 1956-11-01 1960-09-08 Babcock & Wilcox France Improvements to tubular steam evaporation and heating units
FR1231916A (en) * 1958-06-26 1960-10-04 Babcock & Wilcox France Improvements to tubular boilers and improved method of forming a tubular wall
US3034485A (en) * 1958-10-17 1962-05-15 Babcock & Wilcox Ltd Tubular wall construction
FR1465845A (en) * 1965-01-13 1967-01-13 Burmeister & Wains Mot Mask Gas-tight tubular wall for heating fluids and manufacturing process
AT323201B (en) * 1971-08-27 1975-06-25 Max Dipl Ing Dr Techn Ledineeg GAS-TIGHT, WELDED COMBUSTION CHAMBER WALL
EP0075041A1 (en) * 1981-09-15 1983-03-30 GebràœDer Sulzer Aktiengesellschaft Steam generator with a superheater tubular wall

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR689619A (en) * 1929-02-09 1930-09-09 Babcock & Wilcox France Improvements in the combination of water-cooled boiler walls, and superheaters
FR1229638A (en) * 1956-11-01 1960-09-08 Babcock & Wilcox France Improvements to tubular steam evaporation and heating units
GB835567A (en) * 1956-12-04 1960-05-25 Babcock & Wilcox Ltd Improvements in or relating to furnace chamber walls
FR1231916A (en) * 1958-06-26 1960-10-04 Babcock & Wilcox France Improvements to tubular boilers and improved method of forming a tubular wall
US3034485A (en) * 1958-10-17 1962-05-15 Babcock & Wilcox Ltd Tubular wall construction
FR1465845A (en) * 1965-01-13 1967-01-13 Burmeister & Wains Mot Mask Gas-tight tubular wall for heating fluids and manufacturing process
AT323201B (en) * 1971-08-27 1975-06-25 Max Dipl Ing Dr Techn Ledineeg GAS-TIGHT, WELDED COMBUSTION CHAMBER WALL
EP0075041A1 (en) * 1981-09-15 1983-03-30 GebràœDer Sulzer Aktiengesellschaft Steam generator with a superheater tubular wall

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103440A1 (en) * 1991-02-01 1992-08-06 Ver Energiewerke Ag Boiler tube protection system - has slotted wear protection tubes engaged by hooked guides on heater tubes
DE4103440C2 (en) * 1991-02-01 1998-07-09 Ver Energiewerke Ag Arrangement for attaching wear protection tubes to heating surfaces
CN101749689B (en) * 2008-12-10 2011-08-31 中冶赛迪工程技术股份有限公司 Evaporation cooling flue
CN105276609A (en) * 2015-11-16 2016-01-27 无锡华光锅炉股份有限公司 Connecting device for partition walls in pulverized coal boiler of reheater

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Publication number Publication date
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