US1761567A

US1761567A - Furnace wall

Info

Publication number: US1761567A
Application number: US92134A
Authority: US
Inventors: Howard J Kerr
Original assignee: Fuller Lehigh Co
Current assignee: Fuller Lehigh Co
Priority date: 1926-03-04
Filing date: 1926-03-04
Publication date: 1930-06-03
Anticipated expiration: 1947-06-03

Description

H, J. KERR FURNAGE WALL Jung 3 1930;'

Filed March 4, 1926 5 sheets-sheet.

H. J'. KERR' FURNACE WALL Filed March 4, 1926 6 Sheets-Sheet v A v /N VENTO/e Mum; /Cwm/ A TTOR/VE VS H. J. KERR FURNACE WALL June 3, 1930.

Filed March 4', 41,925 e Smets-Sheety NVENTOR ATTORNEYS H. J; KERR FURNAGE- WALL June 3, 1930.

Filed March 4, 1,926 6 Sheets-Sheet 4 H. J. KERR June 3, 1930,

FURNACE WALL Filed March 4 6 Sheets-Sheet Fig/0*- A INVEA'TOR A TTORNE V5 H. J. KERR 1,761,567

FURNAGE WALL 6 Sheets-Sheet 6 Filed March 4. 1,926

June 3, 1930.

A TTo/e/VE YSA /mmmlmmmm 1N VENTOR` l Patented June 3, 1930 -p UNITED 'STATI-:s

` PATENT OFFICE.

OWARD J. KERR, OF WESTFIELD, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO FULLER LEHIGH j COMPANY, A CORPORATION OF DELAWARE FURNACE WALL Application led March 4, 1926.l Serial No. 92,134.

will be best understood fromthe following description and the annexed drawings, in which Fig. 1 is a longitudinal section of a 10 typical form of water tube boiler -and its furnace in which I have embodied my in vention;` Fig. 2 is a section on the line 2-'2 of Fig. 1 on a larger scale; Figs. 3, 4 and 5 are views of a portion of the wall shown in view on the line 3 -3 of Fig. 4, Fig. 4 belng a cross-section in plan of Fi 3,-Fig. 5 being a section on the line 5 5 o Fig. 4; Figs. 6,

7 and 8 are views similar to Figs. 3, 4 and 5, but showing a modification, Fig.l 6 being a section on the line 6-6 ofFig. 7, Fig. -7 being a'section` in plan of Fig. 6, and Fig. 8 belng a section on thev line 8--8 of Fig. 6; Figs. 9, 10 and 1l are views similar to Fi s. 3,4 and 5, but showing a modification, Fig. 9 being a section on the line 9-9 of Fig. 10

' Fig. 10 being a section 1n plan of Fig. 9 andv Fig. 11 being a sectionon the line 11-11 of Fig. l0; Figs. 12, 13 and 14 are views similar to Figs. 3, 4 and 5, but showing still another modification,-F1g. 12 being a section on the'line 12-12 of Fig. 13, Fig. 13'

being a section in plan of Fig. 12 and Fig. 14 being a section on the line 14-14 of Fl 12. j v

like reference characters indicate like parts in the several views.

In the illustrative embodiment, the steam boiler has water tubes 10, an upper steam and water drum 11 and a furnace chamber 12. Theoil burners 13 are supplied with combustion air through ducts 14 from a fan- 15, this air being drawn through ducts 16 upwardly through channels 17- formed between the inner and outer side walls of the furnace chamber, the air entering at the bottom of the wall through the opening 18.

While I have shown myvwall arrangement and the cooling connections therefor as applied to the side walls only, it will be under- Fig'. 2 on a still larger scale,y Fig. 3 being'a` a well-known manner. With the arrange- `Similarly 'this arrangement permits the time, to make a' substantially air-tight linstood that, if desired, it maybe applied to the front and rear walls also. Thefarrangement in eachside wall is the same as in the otherside wall, so that a'descri tion'ofthe, construction of one will suiiice or both- Inthe side wall is a row o ffvertical tubes 19 having their 'ends bent outwardly vbut connected respectively witli'a lower header 2O and an upper'header 21 preferably inclined as shown in Fig. 1. The upper header 2l is connected to the drum l1 through a pipe v22 in a `Well-known manner and the header 20'is similarly connected to the Water space of the drum 11 by a Apipe 23, also in ment described,- boiler water is circulated through the tubes 19 to cool the same.

As is usual, the tubes, 19 are protectedby refractory tile and vb ecause of changes in operating conditions, it is desirable that these tile shall be free to move relatively, and to' that end, it is desirable to omit the bonding between the several tile, and particularly. between the several vertical 4rowsof tile. It isalso desirable to make these tile as thin as possible, or at least to provide for the cooling of the tile as closely adjacent the furnace side of the tile as possible,`so as to maintain the tile at as nearly a uniform temperature as may be. 80

In the form illustrated in Figs. 3, 4 and 5, each pair of adjacent tubes 19 has a vertical row of tile 24 between them with the sides of the tile recessed to provide a space between each pair of tile 24 for a tube 19. In this form, the tile 24 are made more than usually thin and, atv the same time, are formed Iso that open joints are vprovided lbetween each vertical row Aof tile and also between the tubes 19 and the tile. Hence the tile have a freedom of movement and yet, because the outerportion ofthe tile is wider than the space vbetween the tubes 19,-the tile are held'against removal from'the wall.

tubes 19 to have lateralmoti-on relatively to each other.

In order to close the openings or recesses provided for the tubes 19 and, at the same ing for the wall, which lining is particularly desirable when' air is being forced through the space or c hannel 17 between this lining and the outer casing 25, I provide al metallic plate lining.

In the arrangement shown in Figs. 3, 4

and 5, this lining is made up of a plurality might ow.

of metallic plates 26, each connected, as by autogenous welding, to .a tube 19 at about the middle portion of the plate and with the plates arranged with overlapping edges so that the plates may move with thetubes 19 parallel to the face of the wallwithout opening joints'between the plates 26. It will be noted thatthe tile are chipped at 26 so as to permit the relative motion between the tile and the plates without interference with the overlapping portions of the plates 26. The plates 26 may be made aslong vertically as desired, but preferably will be made in a number of' lengths placed edge to edge.

In the arrangement shown in Figs. 6, 7 and 8, the tile 27 are made somewhat thicker than the tile 24 of Fig. 4, but otherwise the arrangement is substantially the same, so far as the tile is concerned. The metallic lining is formed of a plate or plates 28 with their edges bent to enter the recesses between the tile 27, these edges being connected to the tubes 19 so as to provide a bent portion, so that-,Whenthe tubesA 19 move relatively to each other, these-bent portions will permit such movement, the metal of the plates 28 being thin and flexible for this purpose. It will .be obvious -that by this arrangement, the relative motions of the tubes 19 will simply cause the plates 28 to bend. without opening up any cracks through vwhich air from the channel 17 In the form shown in Figs'. 9, 10 and 11, the arrangement is somewhat like that of Figs. 6, 7 and 8 and also like that of Figs.'

3,4 and 5. The lining is formed of a plurality of plates 29 placed edge to edge and with their edges fastened, as by autogenous welding, to the tubes 19. A fold or rib 30 is formed between the vertical edges of each plate and the plates themselves are relatively thin and flexible.V Consequently, when the tubes 19 move relatively to each other parallel to' the face of the wall,-they are not prevented from doing so .by thel plates 29 because of the possible bending of the fold 30.' The tile 3l may be provided with a projection 32 eXtendin into this fold, though, if desired, this projection may by the springing of the projecting portions 34. In this modification, the wall lining plates are not attached to the tubes 19 and they must therefore be held in position. T o

that end, I have provided a number of I- beams 36 positioned in the channel 17 and extending from the plates 33 to the casing 25. These beams 36 may be divided up into sectionsV so as to permit the air to flow vertically in the channel 17 and, if desired, the beams 36 may be made of skeleton form to permit the passage of air vetrically across them.

I claim: Y

1. A furnace wall having a row of spaced tubes, connections to supply a cooling medium to said tubes, tile between each pair of adjacent tubes and having recesses for the tubes with the sides of said recesses toward the inner faces of said tile substantially closed, and a metallic lining covering the outer face of said wall, said lining comprising a plurality of plates, each contacting with at least one of said tubes.

2. A furnace wall having a row of spaced tubes, connections to sup ly a cooling medium to said tubes, tile letween each pair of adjacent tubes and havin recesses for the tubes with the sides of said recesses toward the inner faces of said tile substantially closed, and a metallic lining covering the outer face of said wall, said lining comprising a plurality of plates, each contacting with at least one ofsaid tubes and the recesses in said tile being large enough to permit small movement of the tile parallel to the face of the wall and closed .suiciently at the front and rear of each tube to prevent the removal of the tile from the wall in a direction at right-angles ,to theI wall.

3. A furnace wall having a row of spaced tubes, connections to supplyV a cooling medium .to said tubes,'tile between each pair of adjacent tubes and having recesses for the tubes with the sides of said recesses toward the inner faces of said tile substantially closed, and a metallic lining covering the outer face of said wall, said lining comprising a plurality of plates, each contacting with at least one of said tubes and connected thereto, each of said plates being disconnected from, and free to move horizontally relatively to, the adjacent plates.

4. A furnace wall having a row of spaced tubes, connections to supply a cooling medium to said tubes, tile between each pair of adjacent tubes and having recesses for the tubes with the sides of said recesses toward the' inner faces of said tile substantially closed, and a metallic lining covering the outer face of said wall, said lining comprising a plurality of plates, each contacting a plurality of plates, each plate being se-- with and connected to at least one of said cured to adjacent tubes and bent to permitk tubes. Y

5. A furnace wallv having a row of spaced tubes, connections to supply a cooling medium to said tubes, tile between each pair of adjacent tubes and havin recesses for "the tubes with the sides of sald recesses tomovement thereof along said wall.

HOWARD J. KERR.

tially closed, a metallic lining covering the Aouter face of said wall, said lining com-v v prising a pltrality of plates, each contacting with at least one of said tubes, an outer wall spaced from the outer side of said wall, and connections to circulate air through the space between said wall and said outer wall.

6. A'furnace wall having a row of spacedtubes, connections to supply a cooling medium to said tubes, tile between each pair of adjacent tubes and having recesses for the tubes with the sides of saidrecesses toward the inner faces of said tile substantially closed, a metallic lining -covering the outer face of said wall,said lining comprising a -plurality of plates, each contacting with at least one of said tubes and said plates being constructed and arranged 'to permit the tubes to move relatively to each other parallel to the face of the wall while maintaining the lining substantially air tight.

. 7 A furnace wall having a row of spaced tubes, connections to supply a cooling niedium to said tubes, tilebetween each` pair of adjacent tubes and having recesses forfthe tubes with the side of said spaces toward-the,

inner faces of said tile substantially closed, and a metallic lining covering the outer face of said wall, said lining comprising a plurality of plates, each contacting with and connected to at least one of saidtubes and said plates being constructed and-arranged to permit the tubes to move relatively to eaci other parallel to the face of the wall while maintaining the lining substantially air tight.

8. A furnace wall having a row of spaced tubes, connections to supply a cooling medium to said tubes, tile between each pair of adjacent tubes and having recessesA for the tubes with the sides'ofvsaid recesses toy ward the inner faces of said tile substantially closed, and a metallic lining covering the outer face of said wall, said lining comprising a plurality of relatively thin, flexible plates, each connected to at least two l of said tubes and having a bent portion between the points of connection to permit the tubes to move relatively to each other pary allel to. the face vof the wall while maintaining the lining substantially air tight.

9. A furnace wall formed of refractory material and having recesses therein opening toward the outer face thereof, tubes dis