US3851626A - Support for a steam generator - Google Patents

Support for a steam generator Download PDF

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Publication number
US3851626A
US3851626A US00295336A US29533672A US3851626A US 3851626 A US3851626 A US 3851626A US 00295336 A US00295336 A US 00295336A US 29533672 A US29533672 A US 29533672A US 3851626 A US3851626 A US 3851626A
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US
United States
Prior art keywords
support
planar surface
rings
heat exchanger
set forth
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
US00295336A
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English (en)
Inventor
J Boyd
A Hennel
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US00295336A priority Critical patent/US3851626A/en
Priority to CA179,138A priority patent/CA971845A/en
Priority to DE2345287A priority patent/DE2345287C3/de
Priority to JP48106126A priority patent/JPS5215821B2/ja
Priority to CH1419973A priority patent/CH570581A5/xx
Priority to FR7335687A priority patent/FR2202577A5/fr
Application granted granted Critical
Publication of US3851626A publication Critical patent/US3851626A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks

Definitions

  • ABSTRACT A nuclear steam generator having a skirt and a circular base plate resting on a plurality of balls to allow lateral movement of the steam generator as the connecting piping expands and contracts due to thermal variations.
  • a plurality of bends can be provided in the piping so as to reduce the stress applied to the vessel as the piping expands and contracts in response to changes in temperature of the fluid flowing through the pipe.
  • Such vessels may also be mounted to pivot about their axes to reduce the stress introduced by the piping as shown in U.S. Pat. No. 3,413,960.
  • providing a plurality of bends increases the pumping costs and reduces the efficiency of the unit and utilizing a system wherein the heat exchanger rotates about its axis also requires a minimum number of bends in the piping.
  • a support system for a heat exchanger having fluid conduits connected thereto when made in accordance with this invention, comprises a first generally horizontal planar surface, a second generally planar surface generally parallel the first planar surface, the surfaces having a periphery generally larger than an outer peripheral surface of the heat exchanger, a first ring, a second ring generally smaller than the first ring, the rings being free to move with respect to at least one of the surfaces, and a plurality of balls disposed between the rings, whereby any point on the heat exchanger is free to move in any direction in a plane parallel to the planar surfaces-as the conduits expand and contract due to thermal variations, thus minimizing the stresses on the heat exchanger commonly associated with such thermal variation.
  • FIG. 1 is an elevational view of a steam generator
  • FIG. 2 is an enlarged partial sectional view of a support for the steam generator
  • FIG. 3 is an enlarged partial sectional view taken on line IIIIII of FIG. 2;
  • FIG. 4 is an enlarged sectional view showing a modification of the support.
  • FIG. 1 shows a heat-exchanger vessel such as a steam generator I having an outer shell 3 and a plurality of pipes or fluid conduits 5 connected thereto.
  • the steam generator 1 is carried on a support structure generally indicated at 7.
  • the support structure 7 comprises a skirt 9 attached to the lower end of the shell 3 and a circular plate or flange plate 1 1 fastened to the lower end of the skirt by welding or other means.
  • a circular base plate 13 rests on a foundation 15 and is disposed generally parallel to the circular plate 11 and generally normal to the axis of the shell 3 so that the facing surfaces 17 and 19, re-
  • planar surfaces 17 and 19 Disposed between the planar surfaces 17 and 19 are a pair of rings 21, 23 of different diameter and disposed between the rings 21 and 23 and the planar surfaces 17 and 19 are a plurality of spherical shaped members or balls 25.
  • the rings 21 and 23 are made of flat bars rolled the easy way forming a circular ring andthe ends are joined by welding or other means to form a ring or cylinder.
  • the diameter of the larger ring 21 is generally larger than the diameter of the smaller ring 23 by an amount slightly larger than twice the diameter of the balls 25.
  • the height of the rings 21 and 23 is slightly less than the diameter of the balls 25, whereby v the rings rest on the planar surface 19 of the base plate 13 and are free to slide thereon.
  • the circular plate 11 has a plurality of radially extending slots or clearance holes 27 disposed around the outer periphery thereof.
  • a plurality of .1 bolts 29 or other fastening means are anchored in the foundation 15 and extend upwardly therefrom and through the holes 27. Washers 31 and nuts 33 are cooperatively associated with the bolts to prevent the steam generator from tipping when subjected to side forces as would be produced by high winds and the holes 27 and bolts 29 limit its lateral andradial movement.
  • the balls 25 are loosely disposed within the rings 21 and 23 allowing the steam generator 1 to move laterally and to rotate about a plurality of generally vertical axes so that any point on the steam- .generator can move in any direction in a plane parallel to the planar surfaces 17 and 19 to minimize the stresses induced in the shell 3 by the temperature variations in the piping 5.
  • Circular cover strips 35 may be fastened to the plates to provide simple sealing means which prevent dirt and other foreign material from entering the area wherein the balls contact the plates.
  • the rings 21 and 23 may be sized to accommodate any number of balls 25, whereby the unit load on each ball can be limited so that the plates 11 and 13 need not be heat treated, thus providing a versatile support structure which is economical to produce.
  • a support for a heat exchanger having fluid conduits connected thereto comprising a first generally horizontal planar surface, a second generally planar surface disposed generally parallel to and adjacent said first planar surface, said first planar surface being fastened to said heat exchanger, a base upon which said second planar surface rests, fastening means connecting said first planar surface to said base so as to allow parallel relative movement between said base and said first planar surface, a first ring, a second ring generally smaller than said first ring, said rings being disposed between said planar surfaces and being free to move with respect to at least one of said planar surfaces, and a plurality of spherical shaped members disposed between said rings and said planar surfaces, whereby any point on said heat exchanger is free to move in any direction in a plane parallel to said planar surfaces as said conduit expands and contracts due to thermal variations, thus minimizing the stresses on the heat exchanger associated with such'thermal variation.
  • rings are circular bands having diameters which differ more than twice the diameter of the spherical members and the height of the bands is less than the diameter of the spherical members.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Supports For Pipes And Cables (AREA)
US00295336A 1972-10-05 1972-10-05 Support for a steam generator Expired - Lifetime US3851626A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00295336A US3851626A (en) 1972-10-05 1972-10-05 Support for a steam generator
CA179,138A CA971845A (en) 1972-10-05 1973-08-20 Support for a steam generator
DE2345287A DE2345287C3 (de) 1972-10-05 1973-09-07 Abstützung für das Gehäuse eines Wärmetauschers, vorzugsweise eines Dampferzeugers
JP48106126A JPS5215821B2 (US07790038-20100907-C00008.png) 1972-10-05 1973-09-21
CH1419973A CH570581A5 (US07790038-20100907-C00008.png) 1972-10-05 1973-10-04
FR7335687A FR2202577A5 (US07790038-20100907-C00008.png) 1972-10-05 1973-10-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00295336A US3851626A (en) 1972-10-05 1972-10-05 Support for a steam generator

Publications (1)

Publication Number Publication Date
US3851626A true US3851626A (en) 1974-12-03

Family

ID=23137257

Family Applications (1)

Application Number Title Priority Date Filing Date
US00295336A Expired - Lifetime US3851626A (en) 1972-10-05 1972-10-05 Support for a steam generator

Country Status (6)

Country Link
US (1) US3851626A (US07790038-20100907-C00008.png)
JP (1) JPS5215821B2 (US07790038-20100907-C00008.png)
CA (1) CA971845A (US07790038-20100907-C00008.png)
CH (1) CH570581A5 (US07790038-20100907-C00008.png)
DE (1) DE2345287C3 (US07790038-20100907-C00008.png)
FR (1) FR2202577A5 (US07790038-20100907-C00008.png)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978574A (en) * 1975-08-26 1976-09-07 Stith Jr Morris Randall Method of positioning and supporting a machine
US4295620A (en) * 1978-02-17 1981-10-20 Commissariat A L'energie Atomique Device for anchoring a vessel in a horizontal foundation raft
US4308913A (en) * 1978-07-25 1982-01-05 Maschinenfabrik Augsburg-Nu.rnberg Aktiengesellschaft Cooling tower with elevated heat exchanger elements supported on girders
US4489846A (en) * 1983-10-06 1984-12-25 A. O. Smith Corporation Self-leveling base for tank
US5040767A (en) * 1988-05-30 1991-08-20 Mitsubishi Denki K.K. Traveling stand for traveling type industrial robot device
US5282602A (en) * 1991-11-29 1994-02-01 Asea Brown Boveri Ltd. Arrangement for fastening a machine part to a foundation
EP3421884A4 (en) * 2016-02-23 2019-10-16 In Dug Moon UNDERSTRUCTURE COOLING DEVICE FOR CORE REFERENCE STEAM GENERATORS

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008757A (en) * 1975-09-22 1977-02-22 The Babcock & Wilcox Company Industrial technique
JPS60179594U (ja) * 1984-05-10 1985-11-28 大建工業株式会社 船舶内居住区の天井構造
DE19546566B4 (de) * 1995-12-13 2004-07-15 Mg Technologies Ag Elastische Abstützung des Kühlrohrkäfigs im Druckmantel eines Abhitzekessels

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634084A (en) * 1922-10-25 1927-06-28 Vaporackumulator Ab Support
US1986668A (en) * 1931-03-31 1935-01-01 Fuller Lehigh Co Furnace
US2201786A (en) * 1937-06-18 1940-05-21 Smith Corp A O Equalizer support for enameled tanks during firing
US3190173A (en) * 1959-02-25 1965-06-22 Genevoise Instr Physique Deformation-compensating machine having a suspension comprising three balls
US3413960A (en) * 1965-08-17 1968-12-03 Euratom Equipment comprising a processing vessel or a steam generator having a supporting structure which allows for the thermal variation in length of connecting pipe lines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634084A (en) * 1922-10-25 1927-06-28 Vaporackumulator Ab Support
US1986668A (en) * 1931-03-31 1935-01-01 Fuller Lehigh Co Furnace
US2201786A (en) * 1937-06-18 1940-05-21 Smith Corp A O Equalizer support for enameled tanks during firing
US3190173A (en) * 1959-02-25 1965-06-22 Genevoise Instr Physique Deformation-compensating machine having a suspension comprising three balls
US3413960A (en) * 1965-08-17 1968-12-03 Euratom Equipment comprising a processing vessel or a steam generator having a supporting structure which allows for the thermal variation in length of connecting pipe lines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978574A (en) * 1975-08-26 1976-09-07 Stith Jr Morris Randall Method of positioning and supporting a machine
US4295620A (en) * 1978-02-17 1981-10-20 Commissariat A L'energie Atomique Device for anchoring a vessel in a horizontal foundation raft
US4308913A (en) * 1978-07-25 1982-01-05 Maschinenfabrik Augsburg-Nu.rnberg Aktiengesellschaft Cooling tower with elevated heat exchanger elements supported on girders
US4489846A (en) * 1983-10-06 1984-12-25 A. O. Smith Corporation Self-leveling base for tank
US5040767A (en) * 1988-05-30 1991-08-20 Mitsubishi Denki K.K. Traveling stand for traveling type industrial robot device
US5282602A (en) * 1991-11-29 1994-02-01 Asea Brown Boveri Ltd. Arrangement for fastening a machine part to a foundation
EP3421884A4 (en) * 2016-02-23 2019-10-16 In Dug Moon UNDERSTRUCTURE COOLING DEVICE FOR CORE REFERENCE STEAM GENERATORS

Also Published As

Publication number Publication date
JPS5215821B2 (US07790038-20100907-C00008.png) 1977-05-04
DE2345287C3 (de) 1978-04-13
CA971845A (en) 1975-07-29
DE2345287A1 (de) 1974-04-18
CH570581A5 (US07790038-20100907-C00008.png) 1975-12-15
DE2345287B2 (de) 1977-08-04
FR2202577A5 (US07790038-20100907-C00008.png) 1974-05-03
JPS4972761A (US07790038-20100907-C00008.png) 1974-07-13

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