US3228379A - Support apparatus for boundary walls of a vapor generator - Google Patents

Support apparatus for boundary walls of a vapor generator Download PDF

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Publication number
US3228379A
US3228379A US157239A US15723961A US3228379A US 3228379 A US3228379 A US 3228379A US 157239 A US157239 A US 157239A US 15723961 A US15723961 A US 15723961A US 3228379 A US3228379 A US 3228379A
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US
United States
Prior art keywords
tube
wall
tube lengths
tubular element
lengths
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
Application number
US157239A
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English (en)
Inventor
Schaloske Peter
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.)
Babcock International Ltd
Original Assignee
Babcock and Wilcox Ltd
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
Application filed by Babcock and Wilcox Ltd filed Critical Babcock and Wilcox Ltd
Application granted granted Critical
Publication of US3228379A publication Critical patent/US3228379A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/02—Inflatable articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/10—Inflatable pneumatic tyres or inner tubes formed as a single discontinuous ring with contiguous ends which may be connected together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/20—Inflatable pneumatic tyres or inner tubes having multiple separate inflatable chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/62—Component parts or details of steam boilers specially adapted for steam boilers of forced-flow type
    • F22B37/64—Mounting of, or supporting arrangements for, tube units
    • F22B37/68—Mounting of, or supporting arrangements for, tube units involving horizontally-disposed water tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material

Definitions

  • a vapor generator of the character described is provided with a boundary wall including a row of horizontally extending vertically contiguous fluid cooled tube lengths arranged for parallel flow of fluid therethrough and subject to high temperature heating gases.
  • the provisions for support of the tube lengths include an upright structural steel member and a looped tubular element formed in an intermediate portion of one of the tube lengths and displaced laterally from the wall in an outward direction, with the looped tubular element overlapping the other tube lengths and connected to the structural steel member and to at least one of the other tube lengths in a manner restraining lateral movement of all of the tube lengths, permitting longitudinal movement of said one other tube length, and providing metallic paths for thermal conductivity between the looped tubular element and the structural steel member so that the latter approaches the same temperature as the looped tubular element, thereby minimizing differential expansions and thermal stresses between the structural steel member and the tube lengths.
  • FIG. 1 is a sectional plan view of the boundary walls of the furnace of a forced flow vapor generator showing wall tubes supported and routed in accordance with the invention
  • FIG. 2 is a schematic diagram of the tube circuitry of the boundary walls of the furnace of the vapor generator showing one half of the circumference of the furnace unfolded into a single vertical plane;
  • FIG. 3 shows an enlarged view of one of the looped tubular support elements of FIG. 2 with some parts shown in section for clarity;
  • FIG. 4 is a vertical view taken along line 44 of FIG.
  • FIG. 5 is a plan view taken essentially along the line 5-5 of FIG. 3;
  • FIG. 6 is an enlarged view of the routing of tubular elements of FIG. 2.
  • FIG. 1 shows a furnace chamber 42 of rectangular horizontal cross-section fired by burners (not shown) and defined by upright walls 15, 16, 18 and 20.
  • the boundary walls of the furnace are formed by metallic casing 21 lined by radiantly heated fluid heating tubes, with supports for the casing and tubes being provided by structural steel members including upright channel-shaped members 22 uniformly distributed about the circumference of the furnace.
  • the casing 21 is suitably secured to the flanges of the channel members 22.
  • the tube lining of the furnace boundary walls is in two sections, 24A and 248, each section extending over one half of the circumference of the furnace and comprising contiguous horizontally extending nested multilooped continuous tubes arranged in vertically spaced panels and connected for parallel flow of fluid between a common inlet header 27 and a common outlet header 28.
  • the tubes of section 24A line one half of the wall 15, all of the wall 20, and one half of the wall 18; while the tubes of section 248 line the other half of the wall 15, all of the wall 16, and the other half of the wall 18. Since the tube arrangements of sections 24A and 24B are substantially identical, only one of these arrangements will be described.
  • tube section 24A comprises fourteen continuous tubes 1-14 bent into sinuous nested formations and having relatively long horizontal runs interconnected by relatively short vertical runs, which serve to accommodate differential movements between the horizontal runs, to form in effect vertically spaced horizontal tube panels A, B and C and to provide ascending fluid flow through successive panels.
  • Each panel winds around about one half of the circumference of the furmice, with the panel portion-s in each of the walls 15, 18, and 20 being substantially coplanar.
  • Each of the continuous tubes 1-14 has its respective horizontal tube run portions in the panels interconnected in a manner which changes the location of successive horizontal tube runs relative to the upper and lower edges of its corresponding panel, to the end that the horizontal tube run of each panel bears the name distance relation to the upper horizontal edge of the panel as the horizontal tube run of the next preceding panel to the lower horizontal edge of the next preceding panel.
  • each of the continuous tubes 1-14 has each of its horizontal tube portions in the panels formed with a multi-looped tube portion 26; closed hairpin-shaped in the case of the horizontal tube runs of continuous tubes 1, 2, 13 and 14 and figure 8-shaped in the case of the horizontal tube runs of the remaining continuous tubes.
  • Each looped tubular element 26 extends vertically to the elevation of the upper and lower edges of its corresponding panel and is displaced laterally in an outward direction and disposed within a corresponding channel member to provide support for the tubes of the corresponding panel in a manner hereinafter described.
  • the number of looped tubular support elements in each panel corresponds to the number of continuous tubes and to the number of upright channel members 22 and each of the continuous tubes is formed with about the same number of bends so that the resistance in each tube is substantially the same, thereby promoting uniform distribution of flow between the parallel flow tubes.
  • continuous tube 8 has an intermediate portion of its horizontal tube run in the panel A displaced laterally in an outward direction and bent into the shape of a figure 8, with the tubular element 26 so formed being disposed within and enclosed by a corresponding channel member 22 and extending to the upper and lower edges of the panel A.
  • the upper cross-over portion of the tubular element 26 is secured to the web of the channel 22 by a thin vertically arranged metallic plate 28 extending normal to the panel A and to the web and through the web and a plate 30 disposed outside of and in contact with the web, with the plate 28 having its inner vertical edge suitably formed and welded to the upper cross-over portion of the tubular element 26 and its outer end welded to the outer surface of the plate 30 and with the plate 30 having its opposite vertical edges welded to the web of the channel member 22.
  • the plates 28 and 30 provide metallic paths of thermal conductivity between the tube and channel members to the end that the channel members tend to assume the same temperature as the tubes, thereby minimizing the diflerential expansions and thermal stresses referred to during starting up and shutting down of the vapor gener-ator.
  • a thin metallic plate 32 extending normal to the panel A is disposed mostly within and along the vertical centerline of each of the loops of the tubular element 26 and is secured to the corresponding loop by a pair of metallic fillets 34 disposed on opposite sides of and extending normal to the plate 32 and having their vertical edges respectively welded to the plate 32 and to the corresponding tube loop, with continuous tube having its horizontal tube run in the panel A secured to the lower plate 32 by a horizontally extending U-shaped metallic member 33 having its opposite ends Welded to the tube run 5 and its intermediate portion extending through and normal to the plate 32 in a manner permitting longitudinal movement of the horizontal tube run.
  • Continuous tubes 1 and 14 have their horizontal tube runs in the pan-e1 A respectively secured to the upper and lower loops of the tubular element 26 by studs 35 welded at their opposite ends to the loops and the horizontal tube runs and along their lengths to the plates 32.
  • each tubular support element 26 cooperates with the support device above described and the corresponding channel member to provide support for the tubes of panel A.
  • the cooperative eifect of all the tubular elements 26 and associated support devices and channel members is such as to provide support for all of the horizontal tube runs at several positions within each of the panels, while restraining lateral movements of the tubes of the panels and permitting longitudinal movement of the horizontal tube runs.
  • means for carrying the weight of said tube lengths including:
  • (c) means connecting said looped tubular element to said structural steel member and to one of said other tube lengths.
  • means for supporting said tube lengths including:
  • tubular element formed into a vertically extending figure 8 shape in an intermediate portion of one of said tube lengths to provide two looped portions and a cross-over portion and displaced laterally from said wall in an outward direction, said tubular element being disposed Within said channel member and overlapping the other tube lengths, and
  • means for supporting the tube lengths of each of said panels including:
  • (c) means connecting each of said tubular elements to its corresponding channel member and to one of the other tube lengths of the corresponding panel.
  • (c) means connecting the looped tubular element of each tube length to its corresponding channel member and to one of the other tube lengths.
  • means for carrying the weight of said tube lengths including:
  • (c) means connecting the tubular element of each tube length to its corresponding channel member and to one of the other tube lengths.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Supports For Pipes And Cables (AREA)
US157239A 1960-12-07 1961-12-05 Support apparatus for boundary walls of a vapor generator Expired - Lifetime US3228379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED34895A DE1244199B (de) 1960-12-07 1960-12-07 Rohrwandhalterung fuer Dampferzeuger

Publications (1)

Publication Number Publication Date
US3228379A true US3228379A (en) 1966-01-11

Family

ID=7042404

Family Applications (1)

Application Number Title Priority Date Filing Date
US157239A Expired - Lifetime US3228379A (en) 1960-12-07 1961-12-05 Support apparatus for boundary walls of a vapor generator

Country Status (5)

Country Link
US (1) US3228379A (enrdf_load_stackoverflow)
DE (1) DE1244199B (enrdf_load_stackoverflow)
FR (1) FR1493145A (enrdf_load_stackoverflow)
GB (1) GB1003214A (enrdf_load_stackoverflow)
NL (2) NL123332C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610097A1 (fr) * 1987-01-28 1988-07-29 Stein Industrie Dispositif de solidarisation des boucles d'un element d'echangeur de chaleur constitue par des tubes dans lesquels circule un fluide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554058A1 (fr) * 1983-11-02 1985-05-03 Sillam Serge Chambre a air a plusieurs elements gonflables independamment et interchangeables en cas de crevaison de l'un d'eux

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1437975A (en) * 1919-09-05 1922-12-05 Kreutzer Water heater
GB245019A (en) * 1925-07-03 1925-12-31 Babcock & Wilcox Ltd Improvements in furnace combustion chambers
US2015328A (en) * 1931-05-06 1935-09-24 Int Comb Eng Corp Superheater support
US2033077A (en) * 1931-04-16 1936-03-03 Babcock & Wilcox Co Tube support
US2088724A (en) * 1934-05-31 1937-08-03 Comb Eng Co Inc Boiler and furnace installation
US2228953A (en) * 1938-07-26 1941-01-14 Gen Electric Elastic fluid generator
AU232440A (en) * 1940-07-16 1941-07-24 Norland Leake Composition relating togas or liquid seals
FR1226718A (fr) * 1959-02-28 1960-07-15 Babcock & Wilcox France Perfectionnements aux générateurs de vapeur
US2981241A (en) * 1958-08-14 1961-04-25 Foster Wheeler Corp Radiant wall construction for vapor generator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR855494A (fr) * 1938-06-10 1940-05-11 Herpen Co Kg La Mont Kessel Dispositif de maintien ou support pour tubes de rayonnement de générateur de vapeur

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1437975A (en) * 1919-09-05 1922-12-05 Kreutzer Water heater
GB245019A (en) * 1925-07-03 1925-12-31 Babcock & Wilcox Ltd Improvements in furnace combustion chambers
US2033077A (en) * 1931-04-16 1936-03-03 Babcock & Wilcox Co Tube support
US2015328A (en) * 1931-05-06 1935-09-24 Int Comb Eng Corp Superheater support
US2088724A (en) * 1934-05-31 1937-08-03 Comb Eng Co Inc Boiler and furnace installation
US2228953A (en) * 1938-07-26 1941-01-14 Gen Electric Elastic fluid generator
AU232440A (en) * 1940-07-16 1941-07-24 Norland Leake Composition relating togas or liquid seals
US2981241A (en) * 1958-08-14 1961-04-25 Foster Wheeler Corp Radiant wall construction for vapor generator
FR1226718A (fr) * 1959-02-28 1960-07-15 Babcock & Wilcox France Perfectionnements aux générateurs de vapeur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610097A1 (fr) * 1987-01-28 1988-07-29 Stein Industrie Dispositif de solidarisation des boucles d'un element d'echangeur de chaleur constitue par des tubes dans lesquels circule un fluide
EP0276791A1 (fr) * 1987-01-28 1988-08-03 STEIN INDUSTRIE Société Anonyme dite: Dispositif de solidarisation des boucles d'un élément d'échangeur de chaleur constitué par des tubes dans lesquels circule un fluide
US4825943A (en) * 1987-01-28 1989-05-02 Stein Industrie Device for fixing loops in a component of a heat exchanger constituted by tubes in which a fluid flows

Also Published As

Publication number Publication date
NL123332C (enrdf_load_stackoverflow)
NL272282A (enrdf_load_stackoverflow)
FR1493145A (fr) 1967-08-25
DE1244199B (de) 1967-07-13
GB1003214A (en) 1965-09-02

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