US3176762A - Supporting grids for heat exchanger elements - Google Patents

Supporting grids for heat exchanger elements Download PDF

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Publication number
US3176762A
US3176762A US292972A US29297263A US3176762A US 3176762 A US3176762 A US 3176762A US 292972 A US292972 A US 292972A US 29297263 A US29297263 A US 29297263A US 3176762 A US3176762 A US 3176762A
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US
United States
Prior art keywords
projections
heat exchanger
strips
exchanger elements
elements
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
US292972A
Inventor
Greenwood Kenneth
Royce O Windley
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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Filing date
Publication date
Application filed by Lucas Industries Ltd filed Critical Lucas Industries Ltd
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Publication of US3176762A publication Critical patent/US3176762A/en
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/34—Spacer grids
    • G21C3/348—Spacer grids formed of assembled non-intersecting strips
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • 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
    • Y10S165/416—Extending transverse of shell, e.g. fin, baffle
    • Y10S165/423—Bar
    • Y10S165/424—Bar forming grid structure

Definitions

  • the object of this invention is to provide a supporting grid for cylindrical heat exchanger elements in a con venient form. It should be noted that the term cylindrithree projections in each compartment, the projections being positioned to support the cylindrical heat exchanger elements within the compartments respectively with their axes parallel, and the arrangement being such that a line extending at right angles between the axes of any pair of heat exchangers in adjacent compartments will not pass through more than one projection.
  • a supporting grid as above set forth ensures that the reverse side of any element-engaging projection is clear of i the next element so that the strip is free to yield by flexing to force applied atthe projection.
  • a projection presented at one face for serving in one compartment is spaced widthwise-across the strip from another projection presented at the opposite face for serving in the adjacent compartment, the portion of Width intervening between these two projections giving the requisite fiexural freedom. It is preferred, however, that such opposite projections are spaced at intervals lengthwise of the strip. In one particular arrangement, projections presented at one face alternate with projections presented by the opposite face.
  • FIGURE 1 is an end view illustrating one example
  • FIGURE 2 is a fragmentary view of one of the strips seen in FIGURE 1
  • FIGURE 3 is a view illustrating a modification.
  • FIGURE 1 there is provided a plurality of corrugated strips 6 which are interconnected as shown by any convenient means to provide a plurality shown in FIGURE '2, where the projections 8a, 9a, 10a
  • the projections 7 support a plurality of cylindrical 3,176,752 Patented Apr. 6, 1965 nuclear fuel elements or other heat exchanger elements 11 within the compartments respectively, and it will be noted that no line extending at right angles between the axes of two elements in adjacent compartments passes through more than one projection. This can be seen by considering a typical line X in FIGURE 1, which passes through one projection 7 only. In this way it is ensured that deformation of one element will not result in the transmission of a force to an adjacent element, so that there is no cumulative error in any direction throughout the supporting grid.
  • FIGURE 3 illustrates an alternative construction in which strips 12 are interconnected to form four-sided polygons.
  • some walls such as the wall 13, incorporate two projections, but the above condition regarding lines extending at right angles between the axes of elements in adjacent compartments is still fulfilled, as shown by a typical line Y in FIGURE 3.
  • the assembly of strips and the elements supported thereby are contained in a housing closed at each end. Coolant is forced through the housing and flows through the spaces between the elements 11 to cool the elements.
  • a supporting grid for cylindrical heat exchanger elements comprising in combination a plurality of strips corrugated by bends transversely of the strips and interconnected so as to form a multiplicity of polygonal compartments each defined by two strips and integral projections extending from opposite sides of the sheets so as to provide at least three projections in each compartment, the projections being positioned to support the cylindrical heat exchanger elements within the compartments respectively with their axes parallel, and the arrangement being such that a line extending at right angles between the axes of any pair of heat exchangers in adjacent compartments will not pass through more than one projection.

Description

April 6, 1965 K. GREENWOOD ETAL 3,176,762
NI'S
SUPPORTING- GRIDS FOR HEAT EXCHANGER ELEME Filed July 5, 1963 2 Sheets-Sheet 1 April 1965 K. GREENWOOD ETAL 3,176,762
- SUPPORTING GRIDS FOR HEAT Exc ANGER ELEMENTS Filed July 5, 1963 2 Sheets-Sheet 2 United States 3,176,762 SUPPORTING GRIDS FOR FEAT EXCGER ELEMENTS Kenneth Greenwood, Cliviger, Burnley, and Royce 0.
Windley, Crawshawhooth, Rossendale, England, assignors to Joseph Lucas (Industries) Limited, Birmingham, England Filed July 5, 1963, Ser. No. 292,972 Claims priority, application Great Britain, July 17, 1962, 27,364/62 3 Claims. (El. 165-162) The object of this invention is to provide a supporting grid for cylindrical heat exchanger elements in a con venient form. It should be noted that the term cylindrithree projections in each compartment, the projections being positioned to support the cylindrical heat exchanger elements within the compartments respectively with their axes parallel, and the arrangement being such that a line extending at right angles between the axes of any pair of heat exchangers in adjacent compartments will not pass through more than one projection.
A supporting grid as above set forth ensures that the reverse side of any element-engaging projection is clear of i the next element so that the strip is free to yield by flexing to force applied atthe projection. Given an adequate width of strip, it can be arranged within the scope of the invention that a projection presented at one face for serving in one compartment is spaced widthwise-across the strip from another projection presented at the opposite face for serving in the adjacent compartment, the portion of Width intervening between these two projections giving the requisite fiexural freedom. It is preferred, however, that such opposite projections are spaced at intervals lengthwise of the strip. In one particular arrangement, projections presented at one face alternate with projections presented by the opposite face.
In the accompanying drawings, FIGURE 1 is an end view illustrating one example, FIGURE 2 is a fragmentary view of one of the strips seen in FIGURE 1 and FIGURE 3 is a view illustrating a modification.
Referring first to FIGURE 1, there is provided a plurality of corrugated strips 6 which are interconnected as shown by any convenient means to provide a plurality shown in FIGURE '2, where the projections 8a, 9a, 10a
correspond to projections such as 8a, 9a, llla in FIG- URE 1. a
The projections 7 support a plurality of cylindrical 3,176,752 Patented Apr. 6, 1965 nuclear fuel elements or other heat exchanger elements 11 within the compartments respectively, and it will be noted that no line extending at right angles between the axes of two elements in adjacent compartments passes through more than one projection. This can be seen by considering a typical line X in FIGURE 1, which passes through one projection 7 only. In this way it is ensured that deformation of one element will not result in the transmission of a force to an adjacent element, so that there is no cumulative error in any direction throughout the supporting grid.
FIGURE 3 illustrates an alternative construction in which strips 12 are interconnected to form four-sided polygons. In this example some walls, such as the wall 13, incorporate two projections, but the above condition regarding lines extending at right angles between the axes of elements in adjacent compartments is still fulfilled, as shown by a typical line Y in FIGURE 3.
In use, the assembly of strips and the elements supported thereby are contained in a housing closed at each end. Coolant is forced through the housing and flows through the spaces between the elements 11 to cool the elements.
Having thus described our invention what We claim as new and desire to secure by Letters Patent is:
1. A supporting grid for cylindrical heat exchanger elements, comprising in combination a plurality of strips corrugated by bends transversely of the strips and interconnected so as to form a multiplicity of polygonal compartments each defined by two strips and integral projections extending from opposite sides of the sheets so as to provide at least three projections in each compartment, the projections being positioned to support the cylindrical heat exchanger elements within the compartments respectively with their axes parallel, and the arrangement being such that a line extending at right angles between the axes of any pair of heat exchangers in adjacent compartments will not pass through more than one projection.
2. A supporting grid as claimed in claim 1, in which projections presented at opposite faces of the same strip are spaced apart lengthwise 0f the strip.
3. A supporting grid as claimed in claim 2, in which at least some of the strips have projections presented at one face alternating along the length of the respective strip with projections presented at the opposite face.
References Cited by the Examiner UNITED STATES PATENTS 2,030,119 5/37 Duel 211-71x 2,805,049 9/57 Katholi -462 x 3,091,342 5/63 Crump 211 71 X 3,104,218 9/36 Speideletal 165-162 X OTHER REFERENCES Auslegeschrift, German Printed 086,356, 8/60.
CHARLES SUKALO, Primary Examiner. FREDERICK L. MATTESON, JR., Examiner.
Application No. l,-

Claims (1)

1. A SUPPORTING GRID FOR CYLINDRICAL HEAT EXCHANGER ELEMENTS, COMPRISING IN COMBINATION A PLURALITY OF STRIPS CORRUGATGED BY BENDS TRANSVERSELY OF THE STRIPS AND INTERCONNECTED SO AS TO FORM A MULTIPLICITY OF POLYGONAL COMPARTMENTS EACH DEFINED BY TWO STRIPS AND INTEGRAL PROJECTIONS EXTENDING FROM OPPOSITE SIDES OF THE SHEETS SO AS TO PROVIDE AT LEAST THREE PROJECTIONS IN EACH COMPARTMENT, THE PROJECTIONS BEING POSITIONED TO SUPPORT THE CYLINDRICAL HEAT EXCHANGER ELEMENTS WITHIN THE COMPARTMENTS RESPECTIVELY WITH THEIR AXES PARALLEL, AND THE ARRANGEMENT BEING SUCH THAT A LINE EXTENDING AT RIGHT ANGLES BETWEEN THE AXES OF ANY PAIR OF HEAT EXCHANGERS IN ADJACENT COMPARTMENT WILL NOT PASS THROUGH MORE THAN ONE PROJECTION.
US292972A 1962-07-17 1963-07-05 Supporting grids for heat exchanger elements Expired - Lifetime US3176762A (en)

Applications Claiming Priority (1)

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GB27364/62A GB992154A (en) 1962-07-17 1962-07-17 Supporting grids for cylindrical heat exchanger elements

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US3176762A true US3176762A (en) 1965-04-06

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US (1) US3176762A (en)
BE (1) BE635010A (en)
FR (1) FR1362378A (en)
GB (1) GB992154A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292691A (en) * 1964-01-24 1966-12-20 Babcock & Wilcox Ltd Tube spacing means
US3344855A (en) * 1964-11-30 1967-10-03 Atomic Energy Authority Uk Heat exchange assembly including guide vane structure therein
US3439737A (en) * 1965-11-23 1969-04-22 Atomic Energy Authority Uk Spacer grid for heat exchange elements with mixing promotion means
US3646994A (en) * 1969-12-23 1972-03-07 Reactor Centrum Nederland Spacer grid respectively plate spring for a bunch of cylindrical elements taking part in a heat-exchanging process
US3789184A (en) * 1969-12-23 1974-01-29 Reactor Centrum Nederland Air-excluding spot-welding method for making heat-exchange grid
FR2412143A1 (en) * 1977-12-19 1979-07-13 Atomic Energy Authority Uk Grid structures in nuclear fuel subassembly - for fast breeder nuclear reactor with alternate grids supporting only peripheral fuel pins
US4359088A (en) * 1980-11-21 1982-11-16 The Babcock & Wilcox Company Steam generator tube supports
US4547335A (en) * 1981-02-10 1985-10-15 The United States Of America As Represented By The United States Department Of Energy Fuel rod support grid
US4576228A (en) * 1984-02-03 1986-03-18 The United States Of America As Represented By The United States Department Of Energy Minimum wear tube support hole design
US4902468A (en) * 1987-10-21 1990-02-20 Westinghouse Electric Corp. Control rod support having planar wear surfaces
US5285487A (en) * 1991-10-29 1994-02-08 Abb Atom Ab Spacer for retaining fuel rods in a nuclear reactor fuel assembly
US6186223B1 (en) 1998-08-27 2001-02-13 Zeks Air Drier Corporation Corrugated folded plate heat exchanger
US6244333B1 (en) 1998-08-27 2001-06-12 Zeks Air Drier Corporation Corrugated folded plate heat exchanger
US20060108106A1 (en) * 2004-11-22 2006-05-25 Exxonmobil Research And Engineering Company Anti-vibration tube support
US20100018687A1 (en) * 2007-02-27 2010-01-28 Mitsubishi Heavy Industries, Ltd. Tube support plate of steam generator
US20180224219A1 (en) * 2015-07-06 2018-08-09 Casale Shell-and-tube equipment with antivibration baffles and related assembling method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2422168C2 (en) * 1974-05-08 1982-10-21 Lev Nikolaevič Artemov Heat exchanger
DE2647000C3 (en) * 1976-10-18 1980-11-20 Kraftwerk Union Ag, 4330 Muelheim Spacer grids for fuel assemblies
FR2420735A2 (en) * 1978-03-24 1979-10-19 Trepaud Georges TUBULAR BEAM HEAT EXCHANGER
DE3032048A1 (en) * 1980-08-06 1982-02-25 Gebrüder Sulzer AG, 8401 Winterthur DISTANCE GRID FOR SUPPORTING A BUNCH OF PARALLEL, ROD-SHAPED BODY
FR2543350A1 (en) * 1983-03-21 1984-09-28 Pechiney Uranium Structure and process for storing irradiated fuel elements

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080119A (en) * 1935-07-20 1937-05-11 Edith B Duell Display device
US2805049A (en) * 1954-01-27 1957-09-03 Union Carbide Corp Heat exchanger tube spacers
US3091342A (en) * 1961-07-18 1963-05-28 Craven H Crump Receptacle support and holder
US3104218A (en) * 1958-10-01 1963-09-17 Gen Dynamics Corp Pressure tube structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080119A (en) * 1935-07-20 1937-05-11 Edith B Duell Display device
US2805049A (en) * 1954-01-27 1957-09-03 Union Carbide Corp Heat exchanger tube spacers
US3104218A (en) * 1958-10-01 1963-09-17 Gen Dynamics Corp Pressure tube structure
US3091342A (en) * 1961-07-18 1963-05-28 Craven H Crump Receptacle support and holder

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292691A (en) * 1964-01-24 1966-12-20 Babcock & Wilcox Ltd Tube spacing means
US3344855A (en) * 1964-11-30 1967-10-03 Atomic Energy Authority Uk Heat exchange assembly including guide vane structure therein
US3439737A (en) * 1965-11-23 1969-04-22 Atomic Energy Authority Uk Spacer grid for heat exchange elements with mixing promotion means
US3646994A (en) * 1969-12-23 1972-03-07 Reactor Centrum Nederland Spacer grid respectively plate spring for a bunch of cylindrical elements taking part in a heat-exchanging process
US3789184A (en) * 1969-12-23 1974-01-29 Reactor Centrum Nederland Air-excluding spot-welding method for making heat-exchange grid
FR2412143A1 (en) * 1977-12-19 1979-07-13 Atomic Energy Authority Uk Grid structures in nuclear fuel subassembly - for fast breeder nuclear reactor with alternate grids supporting only peripheral fuel pins
US4359088A (en) * 1980-11-21 1982-11-16 The Babcock & Wilcox Company Steam generator tube supports
US4547335A (en) * 1981-02-10 1985-10-15 The United States Of America As Represented By The United States Department Of Energy Fuel rod support grid
US4576228A (en) * 1984-02-03 1986-03-18 The United States Of America As Represented By The United States Department Of Energy Minimum wear tube support hole design
US4902468A (en) * 1987-10-21 1990-02-20 Westinghouse Electric Corp. Control rod support having planar wear surfaces
US5285487A (en) * 1991-10-29 1994-02-08 Abb Atom Ab Spacer for retaining fuel rods in a nuclear reactor fuel assembly
US6186223B1 (en) 1998-08-27 2001-02-13 Zeks Air Drier Corporation Corrugated folded plate heat exchanger
US6244333B1 (en) 1998-08-27 2001-06-12 Zeks Air Drier Corporation Corrugated folded plate heat exchanger
US20060108106A1 (en) * 2004-11-22 2006-05-25 Exxonmobil Research And Engineering Company Anti-vibration tube support
WO2006057967A1 (en) * 2004-11-22 2006-06-01 Exxonmobil Research And Engineering Company Anti-vibration tube support
US7343964B2 (en) 2004-11-22 2008-03-18 Exxonmobil Research & Engineering Company Anti-vibration tube support
JP2008520935A (en) * 2004-11-22 2008-06-19 エクソンモービル リサーチ アンド エンジニアリング カンパニー Vibration resistant tube support
US20100018687A1 (en) * 2007-02-27 2010-01-28 Mitsubishi Heavy Industries, Ltd. Tube support plate of steam generator
US20180224219A1 (en) * 2015-07-06 2018-08-09 Casale Shell-and-tube equipment with antivibration baffles and related assembling method
US10788273B2 (en) * 2015-07-06 2020-09-29 Casale Sa Shell-and-tube equipment with antivibration baffles and related assembling method

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BE635010A (en)
GB992154A (en) 1965-05-19
FR1362378A (en) 1964-05-29

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