US3545537A - Anti-vibration tube support for vertical steam generator - Google Patents

Anti-vibration tube support for vertical steam generator Download PDF

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Publication number
US3545537A
US3545537A US791844A US3545537DA US3545537A US 3545537 A US3545537 A US 3545537A US 791844 A US791844 A US 791844A US 3545537D A US3545537D A US 3545537DA US 3545537 A US3545537 A US 3545537A
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United States
Prior art keywords
tube
tubes
tube support
plate
spaced
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Expired - Lifetime
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US791844A
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English (en)
Inventor
Forrest B Hill Jr
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Combustion Engineering Inc
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Combustion Engineering Inc
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    • 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
    • F28F9/0135—Auxiliary supports for elements for tubes or tube-assemblies formed by grids having only one tube per closed grid opening
    • F28F9/0136—Auxiliary supports for elements for tubes or tube-assemblies formed by grids having only one tube per closed grid opening formed by intersecting strips
    • 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
    • F22B37/205—Supporting and spacing arrangements for tubes of a tube bundle
    • F22B37/206—Anti-vibration supports for the bends of U-tube steam generators
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/40—Shell enclosed conduit assembly
    • Y10S165/401—Shell enclosed conduit assembly including tube support or shell-side flow director
    • Y10S165/402—Manifold for shell-side fluid

Definitions

  • Vapor generators of this type commonly employ tube bundles formed of layers of .U-shaped tubes, the ends of whose legs are secured to a tube sheet at one end of the shell while the horizontally extending bend portion connecting the legs is 1 disposed uppermost in the chamber.
  • a heating medium such as high-temperature water, vapor, petroleum, or gas, among others, is passed through the tubes and gives up a portion of its heat to a vaporizable liquid that is circulated through the chamber about the tubes to emerge from the shell as saturated or superheated vapor.
  • the tube support means should satisfy several criteria. It should properly space and secure tubes relative to each other. It should permit relative movement between the tubes and the shell in order to accommodate differential thermal expansion. It should not impair heat transfer between the heating medium and the liquid being vaporized. It should not substantially increase the pressure drop on the vaporizable fluid passing through the shell. And additionally, the tube support means cannot be so complex in design or expensive in fabrication as to render it economically infeasible.
  • the present invention provides tube support structure especially adapted for supporting the horizontally extending bend portion of U-tubes in the tube bundle of a shell and tube-type vapor generator in a mannerthat effects both lateral and vertical support for the tubes and yet permits both longitudinal and crossflow of fluid through the supported area of the tube bundle.
  • he support structure comprises a plurality of vertically elongated, flat plate members that extend between adjacent layers of tubes to laterally space the tubes of adjacent tube layers from one another. The oppositely spaced vertical edges of the plate members are provided with recesses disposed in bearing relation between adjacent layers of tubes. 5
  • Such form of support is undesirable for the reason that it progated bars that extend nonnal to the plates between adjacent tubes in the respective tube rows.
  • the bars are adapted to engage and vertically support adjacent tubes on alternate spacing on their upper and lower surfaces.
  • the tubes are properly spaced and secured with respect to one another both laterally and vertically. Provision is made for securing the plates to structural members in ja manner that permits thermally-induced relative movement between the tube and the enclosing shell to occur. Because the tube support bars are disposed on alternate spacing, crossflow of vaporizable fluid through the region of the support structure is permitted, thereby enhancing the transfer of heat between the heating medium and the vaporizable fluid as well as reducing the amount of flow restriction presented by the tube support structure and thus reducing the amount pressure expended by the fluid in flowing through the unit as compared with prior art tube support structures.
  • FIG. 1 is a side elevation of a shell and tube type vapor generator having a tube bundle incorporating the tubesupport structure of the present invention
  • FIG. 2 is a partial elevational section taken along line 2-2 of FIG. 1;
  • FIG. 3 is a partial elevational section taken along line 3-3 of FIG. 2;
  • FIG. 4 is a partial elevational section taken along line 4-4 of FIG. 1; V, e
  • FIG. 5 is a partial elevational section taken along line 5-5 of FIG. 4;
  • FIG. 6 is a plan section taken along line 6-6 of FIG. 1;
  • FIG. 7 is a plan section taken along line 7-7 of FIG. 1;
  • FIG. 8 is a partial plan section taken along line 8-8 of FIG.
  • FIG. 9 is a partial elevational view of the tube support structure of the present invention.
  • FIG. 10 is a partial elevational view taken along line 10-10 of FIG. 9;
  • FIG. 11 is a plan sectiontaken along line 11-11 of FIG. 9;
  • FIG. 12 is a partial isometric representation of the tube support structure of FIG. 9. l ,1
  • FIG. 1 of the drawings there is shown a shell and tube ,type vapor generator 10 incorporating the present invention.
  • the vapor generator 10 comprises a vertically elongated pressure vessel defined by: a lower cylindrical shell 12 and a larger diameter, upper cylindrical shell 14 integrally connected with the lower shell by means of a frustoconical transition member 16.
  • the ends of the vessel are closed, at the bottom by means of hemispherically formed closure head 18 and at the top by a dome-shaped cover 20 containing a vapor outlet nozzle 22.
  • the interior of the pressure vessel contains baffle plate members 24, 26, and 28 that cooperate with the nozzles of the shells to form an inner vessel generation chamber 30 and an outer, annular downcomer passage 32.
  • a tube sheet 34 that extends transversely of the centerline of the vessel and connects with the wall of the shell.
  • the tube sheet 34 contains a plurality of tube openings 36 adapted to fixedly receive the ends of U-shaped heat exchange tubes 38 that form a longitudinally extending tube bundle. 40 substantially filling the lower region of the vapor generation chamber 30.
  • the tube openings 36 extend through the tube sheet34 to place the tubes 38 in fluid communication with a heating fluid chamber 42 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 disposed on alternate spacing and adapted to receive elon- 46, respectively, by means of a diametrical plate 48.
  • the tubes 38 of the tube bundle 40 are arranged such that their opposite ends communicate, with one of the respective portions of the chamber 42 for the throughflow of heating fluid through the tubes.
  • the chamber 42 is connected to a source of heating fluid (not shown) by means of inlet and outlet nozzles 50 and 52, respectively, that communicate with the respective chamber portions 44 and46 and thereby effect circulation of heating fluid through thetubes.
  • Feedwater is supplied to the unit through an inlet nozzle 54 that is shown penetrating the upper shell 14.
  • a ring header 56 connects with the nozzle 54 and serves to'distribute feedwater passed through the nozzle about the circumference of.
  • the downcomer passage 32 discharging it into, the passage by means of downwardlydirected discharge ports 58 that are spacedly disposed about the lower surface of the header.
  • Flow of the feedwater from the downcomer passage 32 into the vapor generation chamber 30 is effected by the spaced relationship that exists between the lower end of the baffle plate 24 and the upper surface of the tube sheet 34.
  • the feedwater is caused to flow in heat exchange relation with the tubes 38 where heat is extracted from the heating fluid circulated therethrough to cause some of the feedwater to be transformed into vapor.
  • the so-created vapor-liquid mixture flows to the upper region of the vapor generation chamber 30 which .is formed as a mixture collection chamber 60 as defined by the cooperation between the baffle plates 26 and 28. From the mixture collection chamber 60 the flowing mixture is passed to vapor-liquid separator apparatus, a multiplicity of such separators indicated as 62 being mountedupon baffle plate 28 and communicating with the chamber 60 'by means of *openings 63 provided in the plate.
  • the separators 62 may be openings 72 through which the leg portions 66 of the tubes 38 are passed.
  • a number of small diameter openings 74 are disposed about each of the tube openings 72 and serve to effect longitudinal flow of vaporizable fluid through the planes of the plates.
  • Vertical support for the plate 70 is provided by appropriate connector means thatattach the plates at circumferentially spaced positions about their outer peripheral edges to the inner surface of the baffle plate 24. Additional support for these plates may be provided intermediate their span by at-' tachment to tie rod 76 that connect at their lower ends to the tube sheet 34 and which extend longitudinally of the vapor generation chamber 30 for the principal purpose of supporting tube support structure attachment plates 112 as described hereinafter.
  • means are provided to spacedly support the laterally extending connecting portion 68 of the U-tubes 38 in the upper region of the tube bundle 40.
  • the laterally extending connecting portion 68 of the U-tubes 38 in the upper region of the tube bundle 40.
  • FIG. 1 of the drawings five laterally spaced tube support structures indicated as 80 and 80' and constructed according to the invention are disclosed. It should be understood, however, that a greater or less number of tube support structure can be employed in various tube bundle applications without departing from the scope of the present invention.
  • support structures 80 and 80' herein for the reason that, while the structures both embody essentially the same structural configuration, as explained hereinafter, different means are employed to anchor the lower ends of the structure due to the particular region of the tube bundle within which each is located, the former being in a region wherein the anchor means are secured by tubes 38 and the latter being disposed in of any well-known construction and are arranged to discharge separated liquid downwardly upon the baffle plate 28 from whence it is returned to the downcomer passage 32 to be mixed with the incoming feedwater and recirculated through the unit.
  • the U- tubes thatcomprise the tube bundle each include a pair of straight, vertically extending leg portions 66 interconnected by a horizontally extending connecting portion 68.
  • the great majority of the tubes 38 have connecting portions 68 that are generally straight.
  • Those tubes, however, that lie in the innermost tube rows may be formed, asshown, with connecting portions that are generally arcuate in shape. All of the tubes 38 are small diameter, thin walled tubes that are arranged, as shown in FIG.
  • each layer in closely spaced layers with each layer containing a plurality of parallel tubes.
  • the tube layers of the present arrangement are disposed such that the tubes therein have their centers located on a triangular pitch.
  • Such arrangement places the tubes of each tube layer in alignment with spaces between .the tubes of the adjacent layer, thereby to expose a greater amount of heating surface to the flowing vaporizable fluid.
  • a plurality of axially spaced horizontally extending plates 70 are disposed throughout a substantial portion of the height of the tube bundle 40 and operate to spacedly support the straight leg portion 66 of tubes 38.
  • These spacer plates 70 being of well-known construction, have surfaces that, as shown in FIG. 8, contain a plurality of aligned a region that is void of tubes;
  • the tube support structures 80 and 80' each comprise a plurality of vertically elongated, thin, flat plate members 82 that are spacedly disposed in front-to-rear alignment between adjacent layers of tubes 38 in the upper region of the tube bundle 40.
  • the plate members 82 that comprise the respective support structures 80 or 80' are caused to extend perpendicularly of the connecting portion 68 of the U-tubes 38 between upper and lower structural support members as hereinafter described.
  • the plate members 82 (FIGS. 9 and 12) are each formed on their oppositely spaced side edges 84 and 86 with :vertically spaced, rectangular recesses 88, the recesses on the respective edges. being alternately spaced from those on the opposite edge.
  • the disposition of the plate members 82 of each support structure 80 or 80' is such as to place corresponding recesses on the plate members in horizontal front-to-rear alignment thus to sup portingly receive tube spacer bars 90.
  • the spacer bars 90 are horizontally elongated members that extend through the tube bundle 40 between adjacent tubes and perpendicular of .the axis of the connection portion 68 thereof.
  • the upper and lower surfaces of the spacer bars 90 are provided with arcuate recesses 92 that conform with the exterior of the tube surface 38, thereby to supportingly engage the tubesrand maintain them in mutually spaced relation.
  • the recesses 92 on the opposed surfaces of spacer bars 90 are alternately spaced. Altematively, were the tubes to be arranged with a square pitch, the recesses 92 on the surfaces of the spacer bars would be disposed in oppositely spaced relation.
  • Each of the tube support structures 80 or 80' is suspendedly mounted within the unit by means of mounting assemblies indicated generally in the respective FIGS. as 94.
  • These assemblies each consist of a horizontally disposed structural member such as I-beam 96, that extends across thewidth of the vapor generation chamber 30 in overlying relation to its associated tube support structure. and having its opposite ends fixedly secured to the inner surface'of the chamber defining plate, here shown as baffle plate 26, as by means of welding or otherwise.
  • a suspension plate 98 is slideably securedto the underside of I-beam 96 by means of oppositely spaced angle members 100 whose depending legs form a guideway that receives the upper edge of the plate 98.
  • Attachment of the tube support structures 80 and 80' to the mounting assembly 94 is effected in the manner shown in FIGS. 2 and 3 wherein, in the disclosed arrangement, the
  • suspension plate 98 is formed with the lower end edge 104 having the general configuration of the outline of the upper end of the tube bundle 40, and the upper ends of the tube support structure plate members 82 are fixedly secured at longitudinally spaced points along the length of the edge, as by welding.
  • the upper ends of the former are provided with a vertical slot 106 (FIG. 9) to receive the lower end of the latter.
  • anchor means attachment plates 112 with respect to structures 80 and anchor beam 114 with respect to structures 80'
  • connection between the plate and anchor members are, however, such as will permit vertical movement of the tube support structure in response to relative thermal expansion between the tubes 38 and the mounting assembly 94.
  • the connection between the plate members 82 and attachment plate 112 is effected in the tube support structure indicated as 80 in the manner shown in FIGS. 2, 3, 9, and 10. With reference to the latter FIGS., it can be seen that the vertical plate members 82 are arranged in pairs and the lower ends of the plates of each pair are weldedly secured in oppositely spaced relation to the outer surface of a short, hollow, cylindrical sleeve 108.
  • Sleeve 108 is formed with an inside diameter that enables it to be telescopically disposed over an adjacent tube 38 and an outside diameter that permits it to be slideably received in an opening 110 provided in its associated attachment plates 112.
  • the attachment plates 112 are horizontally disposed plates located in the region of the tube bundle 40 immediately below the U-tube bend and have a peripheral configuration of chordal sections of a circle (FIG. 7).
  • Vertical support for the respective plates l12 is provided by appropriate attachment means that secure the plates to the inner surface of baffle plate 26 and by tie rods 76 that connect with the plates at spaced points adjacent their chordal edge.
  • the surface of the plates 112 is similar'to that of the tube support plate 70 having a multiplicity of aligned tube openings 72 that permit passage'of the leg portions 60 of tubes 38 and smaller diameter openings 74 thereabout to permit longitudinal flow of vaporizable fluid through the plates. They differ, however, in that the aligned openings IIOthat underIie the tube support structures 80 are oversized holes to slidingly receive the structures 108 and their enclosed tubes 38.
  • the bottom. of the structure 80' is located in a region of the tube bundle 40 that is void of tubes 38.
  • An inverted T-shaped anchor beam 114 extends through the tube bundle having its opposite ends secured by appropriate attaching means to the inner surface of the downcomer baffle plate 24.
  • the beam 114 may be supported at longitudinally spaced points intermediate its ends by tie rod 76.
  • the upstanding leg 116 of the beam 114 is provided along the length of its upper end edge with slots 118 adapted to slidingly receive the lower ends of the tube support plate members 82, the latter having the same general configuration of the tube support plate members employed in structures 80, but being provided at their lower end with slotted edges that are slideably received in the T-beam slots 118.
  • a simple, inexpensive apparatus operative to spacingly support the laterally extending portions of each of the U-tubes that occupy the upper region of a tube bundle employed in a vapor generator of the shell and tube type against the damaging effects of flow-induced and/or mechanically-induced vibration.
  • Relative vertical movement between the tubes is prevented by the opposed disposition of the tube support bars between each; vertically spaced tube portion while relative lateral movement between adjacent tubes is prevented by both the interposed vertical plate members and the tube engaging recesses in the support bars.
  • Thermally-induced relative movement between the tubes and the shell enclosure is accommodated by the floating connection provided between the tube support structures and their associated supports.
  • both heat transfer effectiveness and fluid flow efficiency are maintained at a high degree due to the presence of sufficient flow area through the the tube support structure due to the linear displacement existing between the members of the structure.
  • a shell and tube heat exhanger comprisa. a substantially closed vessel
  • tube sheet means disposed at one end of said vessel for attaching the ends of said tubes
  • tube support structure for suspendedly supporting the bend portion of the tubes in mutually spaced relation including:
  • said tube support structure includes spacer bars in each row having surfaces for engaging the bend portions of the tubes of each layer on corresponding sides thereof and the bars of the respective rows 3.
  • tachment plate means in underlying relation to said tube support structure; V d. a plurality of sleeves positioned in said second openings in longitudinal slideable relation therewith, said sleeves being disposed between the lower ends of alternate plate members of said tube support structure; and e. means for fixedly securing each of said sleeves to theadjacent pair of plate members.
  • Apparatus as recited in claim 1 including means for securing the lower ends of said platemembers in spaced relation, said means comprising:

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  • 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)
US791844A 1968-12-13 1968-12-13 Anti-vibration tube support for vertical steam generator Expired - Lifetime US3545537A (en)

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US79184468A 1968-12-13 1968-12-13

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US (1) US3545537A (xx)
BE (1) BE742913A (xx)
CA (1) CA929056A (xx)
CH (1) CH500429A (xx)
DE (1) DE1961149B2 (xx)
ES (1) ES374260A1 (xx)
FR (1) FR2026116B1 (xx)
GB (1) GB1286519A (xx)
NL (1) NL6918688A (xx)
SE (1) SE349128B (xx)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896874A (en) * 1972-03-31 1975-07-29 Westinghouse Electric Corp Support system for serpentine tubes of a heat exchanger
US4114683A (en) * 1976-08-18 1978-09-19 Hamon Sobelco S.A. Flexible tube type fluid-fluid heat exchanger
US4128221A (en) * 1975-10-17 1978-12-05 Breda Termomeccanica S.P.A. Construction of a supporting grid for pipes
US4588027A (en) * 1982-02-12 1986-05-13 Phillips Petroleum Company Finned or serrated rod baffles for finned tube-shell heat exchanger
US4637455A (en) * 1984-09-28 1987-01-20 Combustion Engineering, Inc. Support rack for tubes immersed in a fluidized bed
US4653576A (en) * 1985-05-01 1987-03-31 Westinghouse Electric Corp. Expandable antivibration bar for a steam generator
US4657073A (en) * 1982-02-12 1987-04-14 Phillips Petroleum Company Finned or serrated rod baffles for finned tube-shell heat exchanger
US4720840A (en) * 1985-06-18 1988-01-19 Westinghouse Electric Corp. Compliant antivibration bar for a steam generator
US5005637A (en) * 1986-11-05 1991-04-09 Phillips Petroleum Company Heat exchanger U-bend tube support
US5385137A (en) * 1993-10-21 1995-01-31 The Lucks Company U-tube heat exchanger for bakery ovens
US5927388A (en) * 1996-12-20 1999-07-27 Asea Brown Boveri Ag Condenser for binary/polynary condensation
US20100116478A1 (en) * 2008-11-12 2010-05-13 Exxonmobil Research And Engineering Company Displaceable baffle for a heat exchanger and method for reducing vibration for the same
US20110146598A1 (en) * 2009-12-22 2011-06-23 Alstom Technology Ltd. Cuff for boiler tube assembly and method of manufacture
US20130255923A1 (en) * 2010-12-21 2013-10-03 Rinheat Oy Shell and tube heat exchanger
US20140014294A1 (en) * 2012-07-13 2014-01-16 Areva Np Inc. U-Bend Tube Compression/Distortion Stabilization System (CDSS)
US20140116360A1 (en) * 2012-10-31 2014-05-01 Westinghouse Electric Company Llc Method and apparatus for securing tubes in a steam generator against vibration
US20150053382A1 (en) * 2011-09-20 2015-02-26 Friendrich Boysen Gmbh & Co. Kg Heat transfer arrangement
CN107044793A (zh) * 2017-02-22 2017-08-15 西南石油大学 一种凹坑传热管减振卡定装置
US20170321971A1 (en) * 2014-12-30 2017-11-09 Joint Stock Company "Akme-Engineering" Heat Exchanger Tube Spacing Device (Varinats)
US20200263937A1 (en) * 2019-02-20 2020-08-20 Caterpillar Inc. Bumper clip for tube type heat exchangers
RU204978U1 (ru) * 2021-02-11 2021-06-22 Общество с ограниченной ответственностью "Белэнергомаш - БЗЭМ" Устройство для крепления змеевиков горизонтальных пакетов в транспортабельном блоке котла

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523712B1 (fr) * 1982-03-18 1985-11-15 Cass International Gmbh Grille-support intercalaire pour echangeurs de chaleur a faisceau de tubes
US4552292A (en) * 1982-11-12 1985-11-12 General Electric Company Heat exchanger
DE3329202A1 (de) * 1983-08-12 1985-02-21 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Profilrohr-waermetauscher
IT1200308B (it) * 1986-10-29 1989-01-12 Ansaldo Spa Schermo termico a nido d ape per scambiatori di calore
FR2652639A1 (fr) * 1989-10-02 1991-04-05 Clark Maurice Elements magnetiques anti-vibratoires pour tubes de faisceaux tubulaires d'echangeurs de chaleur.
FR2735566B1 (fr) * 1995-06-15 1997-07-11 Gec Alsthom Stein Ind Agencement de maintien d'un faisceau de tubes en particulier destine a former un echangeur de chaleur
DE102008014017A1 (de) * 2008-03-13 2009-09-24 Gea Energietechnik Gmbh Anordnung zur Rückkühlung von Kühlwasser

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GB962011A (en) * 1961-10-23 1964-06-24 Foster Wheeler Ltd A method of supporting tubes in heat exchangers

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896874A (en) * 1972-03-31 1975-07-29 Westinghouse Electric Corp Support system for serpentine tubes of a heat exchanger
US4128221A (en) * 1975-10-17 1978-12-05 Breda Termomeccanica S.P.A. Construction of a supporting grid for pipes
US4114683A (en) * 1976-08-18 1978-09-19 Hamon Sobelco S.A. Flexible tube type fluid-fluid heat exchanger
US4588027A (en) * 1982-02-12 1986-05-13 Phillips Petroleum Company Finned or serrated rod baffles for finned tube-shell heat exchanger
US4657073A (en) * 1982-02-12 1987-04-14 Phillips Petroleum Company Finned or serrated rod baffles for finned tube-shell heat exchanger
US4637455A (en) * 1984-09-28 1987-01-20 Combustion Engineering, Inc. Support rack for tubes immersed in a fluidized bed
US4653576A (en) * 1985-05-01 1987-03-31 Westinghouse Electric Corp. Expandable antivibration bar for a steam generator
US4720840A (en) * 1985-06-18 1988-01-19 Westinghouse Electric Corp. Compliant antivibration bar for a steam generator
US5005637A (en) * 1986-11-05 1991-04-09 Phillips Petroleum Company Heat exchanger U-bend tube support
US5148598A (en) * 1986-11-05 1992-09-22 Phillips Petroleum Company Method of fabricating exchanger U-bend tube support
US5385137A (en) * 1993-10-21 1995-01-31 The Lucks Company U-tube heat exchanger for bakery ovens
US5927388A (en) * 1996-12-20 1999-07-27 Asea Brown Boveri Ag Condenser for binary/polynary condensation
US20100116478A1 (en) * 2008-11-12 2010-05-13 Exxonmobil Research And Engineering Company Displaceable baffle for a heat exchanger and method for reducing vibration for the same
US20110146598A1 (en) * 2009-12-22 2011-06-23 Alstom Technology Ltd. Cuff for boiler tube assembly and method of manufacture
US20130255923A1 (en) * 2010-12-21 2013-10-03 Rinheat Oy Shell and tube heat exchanger
US9677825B2 (en) * 2010-12-21 2017-06-13 Rinheat Oy Shell and tube heat exchanger
US20150053382A1 (en) * 2011-09-20 2015-02-26 Friendrich Boysen Gmbh & Co. Kg Heat transfer arrangement
US20140014294A1 (en) * 2012-07-13 2014-01-16 Areva Np Inc. U-Bend Tube Compression/Distortion Stabilization System (CDSS)
US20140116360A1 (en) * 2012-10-31 2014-05-01 Westinghouse Electric Company Llc Method and apparatus for securing tubes in a steam generator against vibration
US10563929B2 (en) * 2014-12-30 2020-02-18 Joint Stock Company “Akme-Engineering” Heat exchanger tube spacing device (varinats)
US20170321971A1 (en) * 2014-12-30 2017-11-09 Joint Stock Company "Akme-Engineering" Heat Exchanger Tube Spacing Device (Varinats)
CN107044793B (zh) * 2017-02-22 2018-11-27 西南石油大学 一种凹坑传热管减振卡定装置
CN107044793A (zh) * 2017-02-22 2017-08-15 西南石油大学 一种凹坑传热管减振卡定装置
US20200263937A1 (en) * 2019-02-20 2020-08-20 Caterpillar Inc. Bumper clip for tube type heat exchangers
US11047631B2 (en) * 2019-02-20 2021-06-29 Caterpillar Inc. Bumper clip for tube type heat exchangers
RU204978U1 (ru) * 2021-02-11 2021-06-22 Общество с ограниченной ответственностью "Белэнергомаш - БЗЭМ" Устройство для крепления змеевиков горизонтальных пакетов в транспортабельном блоке котла

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ES374260A1 (es) 1971-12-16
CA929056A (en) 1973-06-26
CH500429A (de) 1970-12-15
SE349128B (xx) 1972-09-18
GB1286519A (en) 1972-08-23
NL6918688A (xx) 1970-06-16
DE1961149B2 (de) 1971-11-18
FR2026116B1 (xx) 1974-02-01
BE742913A (xx) 1970-05-14
FR2026116A1 (xx) 1970-09-11
DE1961149A1 (de) 1970-07-02

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