US3802853A - Metal panels - Google Patents

Metal panels Download PDF

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Publication number
US3802853A
US3802853A US00741757A US74175768A US3802853A US 3802853 A US3802853 A US 3802853A US 00741757 A US00741757 A US 00741757A US 74175768 A US74175768 A US 74175768A US 3802853 A US3802853 A US 3802853A
Authority
US
United States
Prior art keywords
roof
expandible
panel
tubes
headers
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
US00741757A
Other languages
English (en)
Inventor
Connor T O
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 US3802853A publication Critical patent/US3802853A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/06—Composite bricks or blocks, e.g. panels, modules
    • 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
    • F22B37/36—Arrangements for sheathing or casing boilers
    • F22B37/365—Casings of metal sheets, e.g. expansion plates, expansible joints
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12326—All metal or with adjacent metals with provision for limited relative movement between components
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12354—Nonplanar, uniform-thickness material having symmetrical channel shape or reverse fold [e.g., making acute angle, etc.]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12361—All metal or with adjacent metals having aperture or cut
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/1241—Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]
    • Y10T428/12417—Intersecting corrugating or dimples not in a single line [e.g., waffle form, etc.]

Definitions

  • ABSTRACT [22] Filed; July 1, 1968 A furnace roof construction for accommodating rows of headers located above the roof and the ends of up- [21] PP 741,757 right tubes extending through the roof for connection to the headers.
  • the roof construction having horizon- [30] Foreign Application Priority Data tall? extlendiiligdtubes alrranlged it the baglom of tire roo an ll'lC u mg a p ura 1ty o expan 1 e meta lC June 30.
  • Each of the expandible panels having generally flat planar surfaces some of which cooperate to UNITED STATES PATENTS form an enclosure of generally rectangular cross- 3,l84,094 5/1965 French Ell al 52/573 X section extending along the panel and at least one 3,273,976 9/1966 Wogerbauer 29/183 X pleated portion of generally triangular cross section 3 299 598 l/l967 3'3O2359 2,1967 extendlng along the panel and enclosure in a direction 3'395438 8/1968 transversely of the enclosure.
  • a panel should be formed from sheet metal and yet be able to expand to some extent in response to forces applied to it mechanically.
  • Such panels may be useful in forming a skin casing, for instance, of a boiler and it is especially envisaged that such a panel would be useful in forming the roof of a boiler.
  • a mechanically expandible panel formed from sheet metal providing two wing portions or base surfaces connected together by a channel or enclosure of generally rectangular cross-section of which the side wall portions or side surfaces are each joined along one edge to an edge of one of the wing portions or base surfaces and along the other edge to one of the edges of the bridge portion or raised surface of the channel, and having a pleat extending transversely across the channel and the wing portions and formed from strips converging towards each other, the parts of the pleat that lie in the wing portions and the bridge portion projecting in one sense from the portions in which they lie and the parts of the pleat that lie in the side wall portions projecting in the reverse sense from those portions.
  • FIG. 1 shows in diagrammatic plan view a panel formed from sheet metal
  • FIG. 2 shown diagrammatically an end view of the panel shown in HO. 1 in the direction of the arrows;
  • FIG. 3 shows an transverse cross-section a furnace roof containing two rows of panels such as are illustrated in FIGS. 1 and 2.
  • the panel shown in FIG. 1 includes two wing portions or base surfaces 1 connected together by a channel 2.
  • the channel or enclosure 2 is of generally rectangular cross-section and provides two side walls or surfaces 3, each joined along its lower edge to an edge of a base surface 1, and connected together along their upper edges by the bridge portion or raised surface 4 of the channel.
  • a pleat 5 having a V-section formed by strips converging towards each other extends continuously transversely of the panel; the parts or sections 5a that lie in the wing portions or base surfaces and the part or section 50 that lie in the bridge portion or raised surface 4 all project the same sense, being the sense in which the channel or enclosure 2 projects from the wing portions or base surfaces 1.
  • the parts or sections 5b that lie in the side walls or surfaces 3 project in the reverse sense.
  • the configuration given to the panel permits it to respond by expanding or contracting overall in response to forces applied at, and perpendicularly to, the edges.
  • FIGS. 1 and 2 A and welding.
  • more than one piece of sheet metal may be used, the pieces being welded together along what are indicated as fold lines in FIGS. 1 and 2. it will be realized that a weld will be more rigid than a fold but, when welds are used, the areas lying to each side of the weld will provide some flexibility.
  • FIG. 3 illustrates a section through a furnace roof.
  • the roof is lined by horizontal tubes 20.
  • Two panels 23 and 24 such as have been described with reference to FIGS. 1 and 2, but each with several parallel pleats each spaced from the next along the length of the panel, are disposed one above the row of inlet headers and one above the row of outlet headers with the headers lying in the channel of the associated panel.
  • Roof supports 25 extend parallel to each other longitudinally of the roof and a casing sheet 26 extends alongside each support 25.
  • the edge of the sheet 26 remote from the support 25 is reinforced by a strengthener 27 that lies on the roof tubes 20 while the edge nearest the support 25 is upturned and welded continuously along that edge to the support 25.
  • Panels 23 and 24 rest on the casing sheets 26 and beneath each pleat, in alignment with the pleat, a slit of the same width as the pleat is formed in each casing sheet 26 extending back from the edge of the sheet remote from the support 25 to to the edge of the panel.
  • the panels are then welded continuously along their edges to the casing sheets.
  • inserts of U- shaped cross-section are used with one face welded flat across the end of the plate and the other connected to the support 25.
  • both the channels of the panels and the pleats accommodate expansion of the panels resulting from movement occuring during operation of furnace in the support bars and other constructional element of which the furnace is formed. Such movement will also occur relatively to the pipes 30 and 31 connected to the inlet and outlet headers respectively and the construction is such that two pipes are disposed between each pair of pleats. In addition to the movement permitted by the channels and pleats, some distortion of the other parts of the panels and of the casing sheets can also occur.
  • An improved expandible metallic panel subjected to thermal expansion and contraction and having at least two base surfaces lying in a generally flat common plane and one raised surface lying in a plane generally parallel and displaced from the plane of said base surfaces, adjacent edges of said raised and base surfaces being interconnected by side surfaces each lying in a generally flat plane substantially normal to said raised and base surfaces, the raised and side surfaces cooperating with each other to form a channel of generally rectangular cross-section, at least one pleated portion extending transversely across said raised, side and base surfaces, said pleated portion being of substantially uniform triangular cross-section throughout its length and divided into a plurality of sections having their apex lying in the same plane, each of said sections corresponding to one of each of said panel surfaces, the pleated sections associated with the raised and base surfaces projecting outwardly thereof and the pleated sections associated with the side surfaces projecting inwardly thereof, and said channel having a crosssectional area substantially greater than that of the pleated portion.
  • An expandible metallic panel according to claim 2 wherein at least one of the fold lines of said channel and pleated portion is shaped along a slit formed in the metallic panel and the panel edges bordering said slit are weldably joined together.
  • An expandible metallic panel according to claim 1 including at least two spaced parallel pleated portions and at least one opening extending through that part of the raised surface lying intermediate of said pleated portions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Laminated Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
US00741757A 1967-06-30 1968-07-01 Metal panels Expired - Lifetime US3802853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3043067 1967-06-30

Publications (1)

Publication Number Publication Date
US3802853A true US3802853A (en) 1974-04-09

Family

ID=10307563

Family Applications (1)

Application Number Title Priority Date Filing Date
US00741757A Expired - Lifetime US3802853A (en) 1967-06-30 1968-07-01 Metal panels

Country Status (6)

Country Link
US (1) US3802853A (enrdf_load_stackoverflow)
BE (1) BE717469A (enrdf_load_stackoverflow)
FR (1) FR1580358A (enrdf_load_stackoverflow)
GB (1) GB1227318A (enrdf_load_stackoverflow)
NL (1) NL6809285A (enrdf_load_stackoverflow)
SE (1) SE338054B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB421975I5 (enrdf_load_stackoverflow) * 1973-12-05 1976-03-02
FR2411381A1 (fr) * 1977-12-06 1979-07-06 Elkem Spigerverket As Toit de fours electriques de fusion couverts
US20130000629A1 (en) * 2012-09-13 2013-01-03 James Christopoulos Rotisserie barbecue grill

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB421975I5 (enrdf_load_stackoverflow) * 1973-12-05 1976-03-02
US3994693A (en) * 1973-12-05 1976-11-30 Lockheed Missiles & Space Company, Inc. Expandable metal membrane
FR2411381A1 (fr) * 1977-12-06 1979-07-06 Elkem Spigerverket As Toit de fours electriques de fusion couverts
US20130000629A1 (en) * 2012-09-13 2013-01-03 James Christopoulos Rotisserie barbecue grill
US8770182B2 (en) * 2012-09-13 2014-07-08 James Christopoulos Rotisserie barbecue grill

Also Published As

Publication number Publication date
SE338054B (enrdf_load_stackoverflow) 1971-08-30
NL6809285A (enrdf_load_stackoverflow) 1968-12-31
GB1227318A (enrdf_load_stackoverflow) 1971-04-07
FR1580358A (enrdf_load_stackoverflow) 1969-09-05
BE717469A (enrdf_load_stackoverflow) 1968-12-16

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