US1090947A - Steam-boiler setting. - Google Patents

Description

M. W. SEWALL.

STEAM BOILER SETTING.

ABPLIGATION .IILED MAY 27, 1912.

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1,Q90,94"7. Patented Mar. 24, 191 1 2 SHEETS-SHBET 2.

: 4 r i /7/ O L0 %L a to-c1421 sections I provide will permit a relative movement between. these two sections without distortion of the e STATES m1;

mmor'r w. snwann, or nnw comrany, or BAYONNE,

. 1 i YORK, YL, ASSIGNOR TO THE BABCOCK 85 WILCOX NEW JERSEY, A CORPORATION OF NEW- JERSEY,

v szrnan-noxtnnsnrrme.

To all whom it may concern Be it known that I, Mmo'rr W. SEwAu-,' a

citizen of the United, States, residing at New York city, borough of Manhattan, in" the county of New York and State of New York, have invented certain new and useful IIIlprovements in Steam-Boiler Settings, of

which the following is a specification.

My invention relates to a steam boiler setting, and more particularly to the construction of the'lining of the side walls, which is divided into three sections. The lowermost section comprises a series of water tubes and. intermediate upon said tubes, the tubes being expanded into front and rear manifolds supported at the bottom so their expansion is in an upward direction. The intermediate section comprises a lining of fire bricks supported upon the outside vertical rows of tubes concl-v prised in an inclined bank of tubes; and the uppermost section comprises a lining of fire brick bolted to the outer steel casing. The steam and water drums aresupported from overhead beams in an open chamber, the generating tubes are connected directly to the drums and the expansion of the vertical headers and their connections is downward. Between the lowermost and the intermediate an expansion joint which walls;

accompanying drawings in wh1ch- Figure 1 1s a vertical longitudinal secand part section, the right-hand portion be ing a vertical section on the plane of the line 2-2 of Fig. 1', and the left-hand por' tion an elevation of the one header with its-tubes, however, being shown. X

Similar reference numerals indicate similar parts in the several views.

For the purpose of illustrating one application of my invention, I have shown a standard form of boiler construction comrising a bank ofinclined generating tubes 1, the tubes being expanded into uptake and downtake headers 2 and 3. Transverse baffies 4 and 5 divide the bank of tubes into a plurality of passes beginning at the steam uptake end. Supported row of tubes is a baflie 6 extending from the Specification of Letters l'atent.

bricks supported The invention will be understood from the pressure parts, only head beams 14' by means vStraps 14 on the lowermost rear headerto the transverse baflie' i. The

furnace is supplied with fuel by a traveling grate of any approved I construction and prefenably lnclined. Above the furnace is a series of roof tubes 7, the ends of said tubes being expanded into front and rear boxes 9 and 10, respectively. A baflie 8 is supported upon tubes 7 and extends from the. front box 9 rearwardly. The'uptake headers 2, are connected to ox 9 by tubes 11, and the downtake headers 3 are connected to box 10 by tubes 12. The uptake headers are connected to the steam and water drums 14 by tubes 13, and the downta'ke headers are connected to said drums by tubes 13'. In

this standard form of boiler construction the gases, before coming into contact to a sub-' stantial extent with the water tubes, are

carried below the first and-second passes toward the rear of the boiler and thence H Patented Maneaioii. f Application filed May2'7, 1912. Serial No. 699,861.

back to the firstpass between the roof .8 and. a

the baffle 6 before entering upon the cours that they take across the uptake end of th bank of tubes.

As above stated, the side walls of the set tmg are divided into three sections, the low.- ermost extending from the floor level and comprising water tubes 15 extending fromlevel to the roof substantially the grate tubes to the bank tubes 7 and above he roof of tubes 1, and from the front to the rear wall, nd are inclined substantially parallel with t e tubes of the bank 1. The tubes 15 support recessed bricks. 15" so as to expose" one side of the tubes as shown in Fig. 2-, and

said tubes are expanded into front and rear manifolds 16 and 17 ,respectively, said manlfolds being supported on suitable structural work resting upon the floor; The front manifolds 16 are connected to drums 14; by tubes 18. -The rear manifolds 17 are connected by tubes 19 to across box 20 nippled to the undersides of the drums 14. The steam and water drums are supported in an open chamber 21, free and clear without the usual brick covering,from overof suspension Theexpansion of the headers 2 and 3, and their connections, is downward, and, to permit of'the downward expansion of the headers 2 and 3 and of the upward expansion of the manifolds 1'6 and 17 without distortion of the'side walls, I make the outside front and rear headers 22 of greater length than the headers into which the other v tubes of the bank are expanded, and

Y much as half 40 tubes 23 and th a setting with the into the lower ends of these headers two tubes 23, as shown in Fig. The tubes of the side vertical rows above tub-es 23 support the fire bricks or tiles 24. Resting upon the topmost tubes and upon the tubes 23 arefire bricks 25, the latter being recessed to conform to the tubes. The lowermost row of bricks% is supported on the bricks 25.

The uppermost section of the lining is composed of fire bricksor tiles 26 held in place by bolts 27 passing through straps 26 and outer steel casing 28. The latter carries the weight of the bricks 26, thus reliev- 15 ing the upper side tubes of the boiler of the weight which would otherwise come upon them. Between the steel caslng and the 11ning of tubes and fire bricks above described e is a layer of non-conducting material 29.

As shown in Fig. 2, the lowermost section of the setting is ofiset from the sections above it.- The verticals extending upwardlv from the channel iron 30 are bolted through the inner vertical flange of said iron, and the verticals extending downwardly are attached to the web of the channel at .its underside by angle iron clips. I

From the foregoing description it will be understood that as the headers 2 and 3 have direct connection with the drums, which latter are'supported from overhead beams, the

expansion of the headers will be downward and the lower tubes 23 of the boiler will '1; have a downward movement. 36 folds 16 and 17 and the tubes 15 of the side The maniwalls, being supported at the bottom, have a movement upward, resulting in a considerable relative movement, which may be as an ,\inch,between the lower e uppermost tubes 15. These two rows of tubes being in the same inclined plane and bridged by the bricks25, the

downward movement of the tubes 23 and the upward movement of the top row of tubes 15 will tilt the brick 25 without disturbance of the outer non-conducting covering except a slight compression between the brick 25 and the channel 30,'and without any distortion of the outer steel casing, or distress to the fire brick lining. It is also to be noted that the upper surface of the bridge brick 25 is formed so that a in the same manner as if theshoulder on the I bridging were a boiler tube.-

In my Patent No. 1,064,175, dated June 10, 1913, the application for which was filed got even date herewith, I have shown a boiler walls constructed as side herein described and claimed.

at I claim and desire to 'sec'ureby Letters-Patent of the United States'is 1. A boiler setting comprisin side walls having a lming of water tubes divided into sections ofi'set from each other, and means having one section front and rear manifolds intowhich saidv standard side boiler lb wall brick can be used-in connection with it -hav1ng one' section lined with expand I to permit the movement of said sections relative to each other vertically in opposite directions without distortion of the walls.

2. A boiler settin comprising side walls having one section ined with water tubes, front and rear manifolds into which said tubes are expanded, and another section lined with water tubes, front and rearheaders into which said latter tubes are expanded, and means to permit the movement of said manifolds and headers with their connecting tubes in opposite 'directionswithout distortion of the walls.

3. A boiler setting comprising side walls lined with water tubes,

tubes are expanded, another section lined with water tubes and front and rear headers into which said latter tubes are expanded, said manifolds being supported at their bases permitting their expansion upward, and said headers supported from overhead permitting their expansion downward, and

means to permit such relative vertical movement Without dis ortion of the walls.

4;. A steam boiler setting comprising side walls having a lining of water tubes divided into sections oflset from each other so as to be capable of movement in opposite directions, and a movable bridge betweenv the said sections to permit vertical movement of the sections without distortion of the walls.

5. A boiler setting comprising side walls having one section lined with water tubessuspended from overhead and a lower sec tion supported from the cor, line, said sections being ofi'set, and means, to permit the movement of said sections in opposite-directions without distortion of the walls;

7. A (boiler setting having the furnaceside walls composed of water tubes and fire rick's supported thereon, and the upper or boiler walls composed of water vtubes and bricks supportedthereon, of non-conductingmaterial and steel plates,

an outer lining and means to permit ofa relative movement vertically in opposite directions of the tubes of said sections without distortion of the walls.

8. A boiler-setting comprising side walls fire b ricks supported thereon, front and rear manifolds into, which said tubes are expended, another section having water tubes and fire bricks supported thereon, the tubes water tubes,

ma am of said latter section being included in a bank of generating tubes, front and rear headers into which said generating tubes are expanded, and means to permit a relative movement vertically of the tubes of said secv tions without distortion of the walls.

9. A steam boiler comprising a bank of inclined tubes, front and .rear headers into which said tubes are expanded, steam and water drums from which said headers are suspended, fire bricks supported on the out side rows of tubes of said bank, a row of water tubes below and independent of said bank of tubes, fire brick supported upon said lower row of tubes, front and rear manifolds into which the tubes of said lower row are expanded, and means to permit the movement of said headers and manifolds with their connected tubes vertically in opposite directions without distortion of the walls.

10. A boiler setting comprising side walls having one section lined with water tubes front and rear manifolds into which said tubes are expanded, and another section lined with water tubes, and front andmear headers into which said latter tubes are expanded, said front and rear headers being independently connected by pipes to the steam drum.

. In. testimony whereof I have hereunto signed my name in the presence of two sub-' scribing witnesses.

MINOTT W. SEWALL.

Witnesses:

J OHN A.,W. DIXON, E. P. TERRY.

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