US3927714A - Heat exchanger arrangement - Google Patents

Heat exchanger arrangement Download PDF

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Publication number
US3927714A
US3927714A US546421A US54642175A US3927714A US 3927714 A US3927714 A US 3927714A US 546421 A US546421 A US 546421A US 54642175 A US54642175 A US 54642175A US 3927714 A US3927714 A US 3927714A
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US
United States
Prior art keywords
tubes
vessel
section
arrangement
conduits
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
US546421A
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English (en)
Inventor
Heinz Stogmuller
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3927714A publication Critical patent/US3927714A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
    • 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
    • Y10S165/051—Heat exchange having expansion and contraction relieving or absorbing means
    • Y10S165/052—Heat exchange having expansion and contraction relieving or absorbing means for cylindrical heat exchanger
    • Y10S165/063—Cylindrical heat exchanger fixed to fixed end supports
    • Y10S165/065—Bent cylindrical heat exchanger

Definitions

  • ABSTRACT [30] Foreign Application Priority Data A water tube boiler having a first section whose tubes Feb. 1,1974 Germany 7403348 define a p Combustion ha and a Second section bounding'a horizontal passage for the combus- [52] US. Cl. 165/82; 122/510 IiOn gases e nnected to a horizontally elongated [51] Int. Cl.
  • This invention relates to heat exchangers, and particularly to a heat exchanger having two sections arranged on different levels and connected to a common collector vessel.
  • the invention provides a heat exchanger arrangement in which a first and a second heat exchanger section are mounted on respective vertically spaced portions of a support.
  • the first section has an upright frame mounted on the lower support portion and includes a plurality of heat exchange tubes supported on the frame. Respective outer faces of the tubes jointly define a first part of a passage for a fluid heating medium.
  • the second section mounted on the higher support portion, includes a plurality of hollow heat exchange elements whose respective outer faces jointly define a second part of the afore-mentioned passage for flow of the heating medium through the second section in a predetermined direction.
  • a horizontally elongated collector vessel is mounted on the frame of the first section and is connected by first conduits with the tubes of the first section, and by yieldably resilient second conduits with the heat exchange elements of the second section.
  • the flexibility of the second conduits is sufficient to permit differential thermal expansionand contraction of the two sections without stressing these sections.
  • FIG. 1 shows a water-tube boiler of the invention in fragmentary side elevation
  • FIG. 2 shows the apparatus of FIG. 1 in top plan view.
  • the drawing shows only as much of an otherwise conventional water-tube boiler as is needed for an understanding of the invention. More specifically, the boiler shell and an oil burner have been omitted, and the conduits supplying feed water to the boiler and transferring the generated steam to an engine have not been shown since they are conventional and not directly relevant to this invention.
  • the invention is more specifically concerned with the heat exchanging devices of the boiler and their connections.
  • the illustrated boiler has two heat exchanger sections 1, 2.
  • the vertical water tubes 3 of the first section arejoined at their lower ends to manifolds 4 and at their upper ends to headers 5 which, in turn, are connected by pipes 5 to a generally cylindrical drum 6, a collector vessel, whose longitudinal axis is horizontal.
  • the drum 6 ismounted on the top of a frame constituted by vertical down pipes 7 and return pipes 8 which are connected by the manifolds 4 and headers 5 and carry the heat exchange tubes 3.
  • the frame rests on engagement elements 9, 9, 10 on the concrete floor of the boiler house, not otherwise shown, which supports the boiler.
  • the outer faces of the tubes 3 define a first, vertical part of a passage for a heating medium indicated in FIG. 1 by arrows P and mainly consisting of combustion products emitted by the non-illustrated, conventional oil burner and hot excess air.
  • the second, horizontal part of the passage is bounded by the second section 2 of the heat exchanger, and more specifically by external faces of hollow heat exchange elements 13 which may be tubes, hollow plates, or the like, and each extend between lower distribution pipes 11 and upper headers or collecting tubes 12.
  • the section 2 rests on engagement elements l4, 14, 15 on an integral, raised platform of the boiler house floor.
  • Resiliently flexible conduits 16, 17 respectively connect the pipes 11 and headers 12 to the drum 6.
  • each of the conduits l6, 17 has one end communicating with the elements 13 through a pipe 1 l or header l2 and another end communicating with one of two axial end portions of the drum 6 which are divided by the plane E.
  • An intermediate portion of each conduit l6, 17 is angularly offset from the two ends and approximately perpendicular to the plane E, thereby giving sufficient flexibility to the connection between the heat exchanger section 2 and the drum 6 to compensate for the differcnccs in thermal expansion and contraction between the two sections 1 and 2 without jeopardizing the structural integrity of the heat exchange arrangement.
  • the frame of the first section 1 engages the boiler house floor in four points.
  • the support 9 under the downpipe 7 seen in FIG. 1 holds the pipe in a fixed horizontal position.
  • Rollers are mounted under the other upright members of the frame as shown at 10 in FIG. 1 and not explicitly visible at 9 so that horizontal expansion or contraction of the framedoes not induce any significant stresses in the structure.
  • only the support 14 on the boiler house platform fixedly engages the heat exchange unit 2.
  • the supports indicated at 14 and 15 are equipped with rollers permitting movement toward and away from the fixed support 14.
  • the two heat exchanger section 1, 2 can be juxtaposed very closely, yet move relative to each other, thereby flexing the conduits l6, 17.
  • the spacing of the supports 9, 9 of the group supporting the first section 1 from the closest supports 14, 14 of the group supporting the second section 2 in the direction of gas flow through the section 2 is but a small fraction of the transverse dimension of the gas passage in the second section.
  • a heat exchanger arrangement comprising: a. a support having two vertically spaced portions; b. a first heat exchanger section including 1. an upright frame mounted on the lower one of said portions, and
  • a second heat exchanger section mounted on the higher one of said portions and including a plurality of hollow heat exchange elements having respective outer faces jointly defining a second part of said passage for flow of said medium through said second section in a predetermined direction;
  • said collector vessel has a longitudinal axis, and an upright median plane transverse to said axis
  • said second conduits include two collecting tubes elongated in said direction, said collecting tubes being transversely spaced from each other in a horizontal direction and located on opposite sides of said median plane, and two connecting tubes respectively connecting said collecting tubes to longitudinally terminal portions of said collector vessel on the far side of said median plane.
  • collector vessel has a longitudinal axis and a median plane perpendicular to said axis, said parts of said passage being parallel to said plane and offset angulary from each other.
  • each of said second conduits is elongated and has two longitudinally terminal portions communicating with said collector vessel and with one of said elements respectively on opposite sides of said median plane.
  • each of said second conduits has a portion longitudinally intermediate said terminal portions and angularly offset from each terminal portion, said intermediate portion being approximately perpendicular to said median plane.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US546421A 1974-02-01 1975-02-03 Heat exchanger arrangement Expired - Lifetime US3927714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7403348 1974-02-01

Publications (1)

Publication Number Publication Date
US3927714A true US3927714A (en) 1975-12-23

Family

ID=6643537

Family Applications (1)

Application Number Title Priority Date Filing Date
US546421A Expired - Lifetime US3927714A (en) 1974-02-01 1975-02-03 Heat exchanger arrangement

Country Status (5)

Country Link
US (1) US3927714A (enrdf_load_html_response)
JP (1) JPS50108401A (enrdf_load_html_response)
CA (1) CA1024840A (enrdf_load_html_response)
CH (1) CH583879A5 (enrdf_load_html_response)
FR (1) FR2260074B1 (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527761A (en) * 1983-02-04 1985-07-09 Borsig Gmbh Device for the supporting of horizontal, thermally loaded containers
WO2017220846A1 (en) 2016-06-20 2017-12-28 Amec Foster Wheeler Energia Oy A bottom-supported boiler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2285651A (en) * 1940-10-25 1942-06-09 Westinghouse Electric & Mfg Co Multiple bundle vapor generator
US2290882A (en) * 1940-01-10 1942-07-28 Foster Wheeler Corp Vapor generator
US2515443A (en) * 1944-11-16 1950-07-18 Babcock & Wilcox Co Vapor generator
US3280800A (en) * 1965-07-28 1966-10-25 Combustion Eng Vapor generator having boiler bank supported by downcomers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2290882A (en) * 1940-01-10 1942-07-28 Foster Wheeler Corp Vapor generator
US2285651A (en) * 1940-10-25 1942-06-09 Westinghouse Electric & Mfg Co Multiple bundle vapor generator
US2515443A (en) * 1944-11-16 1950-07-18 Babcock & Wilcox Co Vapor generator
US3280800A (en) * 1965-07-28 1966-10-25 Combustion Eng Vapor generator having boiler bank supported by downcomers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527761A (en) * 1983-02-04 1985-07-09 Borsig Gmbh Device for the supporting of horizontal, thermally loaded containers
WO2017220846A1 (en) 2016-06-20 2017-12-28 Amec Foster Wheeler Energia Oy A bottom-supported boiler
EP3472513B1 (en) 2016-06-20 2020-02-26 Sumitomo SHI FW Energia Oy A bottom-supported boiler
US11499709B2 (en) * 2016-06-20 2022-11-15 Sumitomo SHI FW Energia Oy Bottom-supported boiler having a boiler pressure body and a four vertical column support construction

Also Published As

Publication number Publication date
CA1024840A (en) 1978-01-24
CH583879A5 (enrdf_load_html_response) 1977-01-14
FR2260074A1 (enrdf_load_html_response) 1975-08-29
JPS50108401A (enrdf_load_html_response) 1975-08-26
FR2260074B1 (enrdf_load_html_response) 1979-09-28

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