US1879610A

US1879610A - Boiler casing

Info

Publication number: US1879610A
Application number: US141661A
Authority: US
Inventors: Harter Isaac
Original assignee: Babcock and Wilcox Co
Current assignee: Babcock and Wilcox Co
Priority date: 1926-10-14
Filing date: 1926-10-14
Publication date: 1932-09-27
Anticipated expiration: 1949-09-27

Description

l. HARTER I Sept. 27, 193.2.

BOILER CASING Filed oet. 14l 192s f A TTU/@NE YS Patented Sept. (27, 1932 UiSuTi-:n sTATEs PATENT OFFICE IsAAc HARTER, or noNGAN HILLS, Naw YORK, AssIeNoR To THE 'nABcoox a wILcox conrANY, or BAYONNE, New JERSEY, A CORPORATION or Nnw .rnassusnrv BoILRR cAs'ING T his invention relates to a casing for a boiler, and will be understood from the description and the accompanying drawing, 1n which Fig. 1 is a vertical"sectionthrough a boiler in connection with which an embodiment of the invention is illustrated; Figs. 2

and 3 are similar sections on an enlarged scale, partly broken away; Fig. 4 is a section along the line 4 4 of Fig. 3 and Fig. 5 is a similar sectionofamodiiication.

In the drawing, reference characters and 11 indicate upper and lower horizontally-dis, posed drums that are connected by banks of tubes 1,2. `Alpipe 13 extends from the drum 10 to the superheater 14 that `is located between the tubes v12. v

Supports 15 are provided beneath the sides of the-boiler casing. The boiler casingmay be made of tile,fvor example. -The boiler casin rests `upon the supports 15, and is provied with a top 16 and a bottom 17, with soot pockets 18'locatedfin the bottom.

Longitudinally-disposed metal plates 20 are provided for the outside of the side walls Channel-shaped tile that may be made of metal or refractory material, make up thel inside lining of the side walls of the casing.

Ihese tile have longitudinal projections thereon, such as ribs or flanges 2.6, that may contact with the outer portion of the boiler, here consisting of the outside row of tubes12', as most clearly shown in VF ig. 4. Horizontallydisposed metal channel members 28 are located at intervals along the inside wall of the casing, and the flanges thereof contactwith the corresponding flanges on the tile above and below the same. Scot blowers 29- may be b located in the channel members 28. The space between the side walls, made up of metal plates 20 on one side, and the tile 25 and channels 28 on the other side, is filled with insulating material 30. l

k'Application led October 14, 192B. Serial No. 141,661.

L-shaped bars 31 are riveted to the lowest of the metal plates 20 (Fig. 2), and are anchored to the walls 15 by means of anchor bolts-32, .which are bolted to the L-shaped bars 31, and are seated in suitably shaped grooves provided in the topmost tile of the 'walls 15. Longitudinal battles 32 are provided between the side walls of the casing and the drum 10 to prevent the hot gases from rising beyond the upper'ends of the tubes 12.

rows of tubes 12 are shown staggered and the tubes in the outside row extend yinto recesses 33 in the flanges or ribs 26 of the tile 25. In both illustrations of the invention, hot gases can pass between the outside rows of tubes 12 and the inside walls of the boiler casing, andare guided along horizontal paths by In the modification shown in Fig. 5, the qu' means of the flanges 26 of the tile. In this Way, the outside rows of tubes next to the walls will have free circulation of hot gases on all sides thereof to cause greater heat absorption byA these tubes than would be the case if ordinary'iiat tile were laid a ainst the tubes 12. At the same time, the-tul es 12 prevent the tile 25 of the furnace w'all from falling inwardly.

Although the invention has been described .in connection with a boiler in. which an upper and lower horizontally-disposed drum is connected by vertically-disposed tubes with superheater tubes interposed, in which hot gases are to be lpassed horizontally among the i tubes, it is to be understood that the inven tion may be used with otherv types of boilers.

I claim l 1. In combination, a boiler casing wall having an inner lining formed of horizontally 'disposed channel members with inwardl extending flanges, and a boiler having vertlcally disposed tubes and having its outer tubes contactingonly in spots with the ianges of said members whereby said channels are held agalinst linward lateral movement by `said o1 er.

2. In combination, a boiler casing wall havi ing its outer surface formed of a pluralit of plates secured togetherat adjacent e ges, stifiening members secured between adjacent plates, a boiler having vertically disposed tubes within said casing, an inner lining for said casin formed of a plurality of ltile in the l p shape of c annels horizontally disposed with inwardly disposed flanges, said lflanges cony tacting in spots with the outer portion of said tubes and the portions between flanges being spaced from the boiler, and a layer of insulating material disposed between said plates and said tile.

3. A boiler casing wall havin face formed of aplurality of plates provided with flanges at their adjacent edges, stiifening members disposed between said anges and secured thereto, an inner lining of metallic material an insulating material disposed between said plates and lining, a boiler having vertically disposed tubes-within said casing 4and inwardly extending horizontally disposed projections on said lining contacting with tubes of said boiler within the casing with the portions of the lining between proj ections spaced from the boiler, whereby gases may. circulate between said projections and contact with the outer portion of the boiler.

4. In a water tube boiler having vertically disposed tubes, a horizontally channeled casin for said boiler having the channels on the si e toward said tubes and in proximity to l some of said tubes.

5. AIn a water tube boiler having vertically disposed tubes, a horizontally channeled casin for said boiler having the channels on the si e toward said tubes, the edges of the flanges of said channels contacting of said tubes;

` Isulacy HARTER;

with some its outer sur-