US787764A - Steam-boiler. - Google Patents

Steam-boiler. Download PDF

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Publication number
US787764A
US787764A US23883104A US1904238831A US787764A US 787764 A US787764 A US 787764A US 23883104 A US23883104 A US 23883104A US 1904238831 A US1904238831 A US 1904238831A US 787764 A US787764 A US 787764A
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Prior art keywords
boiler
steam
box
smoke
tubes
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US23883104A
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Levi Hussey
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Alexander Miller
Levi Hussey
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B9/00Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
    • F22B9/10Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber
    • F22B9/12Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber the fire tubes being in substantially horizontal arrangement

Description

PATENTBD APR.\18; 1905.
L. HUSSEY.v STEAM BOILER.
' APPLIOATION :FILED DBO. 29, 1904.
No. 787,764. PATENTBD APR.18, 1905. L HUSSBY STEAM BOILBR.
APPLICATION FILED DEO. 29. 1904.
4 SHEETS-SHEET 2.
PATE'NTED APR. 18, 1905.
L. HUISSEY.
STEAM BOILBR.
APPLICATION FILED DEU. 29, `1904.
. Y 4 SHEETS-SHEET 3.
'115.7873764'. PATBNTBD ABR. 18, 1905.
l L. HUssBY.
STEAM BOILBR.
APPLICATION FILED DEO. 29, 190%. f
' 4 SHEETS-SHEET 4.
. l l l. W Ii lfam. *I wwwhhlslliewlw w ooo @OOO EN" oooQoooo IM, f 652% o 'o o o o mi? WOOOOOQOQU o `o o 0N D. o o 0 mi o lo o [IM o o o IW Q o, lw" Q E UNITED STATES Patented April 18, 1905.
PATENT OEEICE.
LEVI HUSSEY, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO ALEXANDER MILLER, OF NEW YORK, N. Y.
STEAM-Bomen.
SPECIFICATION forming part of Letters Patent NO. 787,764, dated April 18, 1905.
Application filed December Z9, 1904. Serial No. 238,831.
l'o (all 1071/0111/ t 71u14/ concern,.-
Be it known that I, .LEVI HUssEY, a citizen of the United States, residing, in New York, borough of Manhattan, in the State of New York, have invented certain new and useful Improvements in Steam-Boilers, of which the following is a specification.
This invention .relates to steam-boilers, and more particularly to those of the horizontal fire-tube type, having among its objects the provision of a boiler in which the products of combustion are utilized to the fullest degree, the heat which would otherwise be wasted being used to superheat the steam. The invention also aims to provide a superheater which is so arranged as to be heated by the hot gases immediately after the same issue from the fire-tubes in order that the greatest possible amount of heat is transmitted to the superheating-tubes and the moisture ofthe steam thereby .thoroughly removed.
A further` object of the invention is the provision of a steam-boiler in which the steamspace is divided into two parts communicating directly with the superheating-tubes, whereby owing to the ready passage of the steam between said parts and through the superheating-tubes the complete superheating of the steam is effected before the outward passage of the same through the steam-pipe; and with these ends iii view the invention consists in a steam-boiler comprising a shell, an interior smoke-box, fire-tubes connecting the heads of said shell with said smoke-box, and superheating-tubes extending through said smoke-box.
The invention also consists in the combination, with a horizontal lire-tube steam-boiler, of a centrally-arranged furnace between the same, bridge-walls disposed symmetrically to the vertical transverse center plane of the boiler, and end walls extending above the liretubes and spaced from the boiler-heads.
The invention consists, further, of other novel features and combinations of parts,which will be fully described hereinafter and finally pointed out in the claims.
In the accompanying drawings, illustrative of one embodiment of the invention, Figure l is a front elevation of my improved steamboiler. Fig. 2 is a plan View of the same. Fig. 3 is a vertical longitudinal section on line 3 3, Fig. 2; and Fig. 4 is a vertical transverse section on line 4 4, Fig. l.
Similar letters of reference indicate corresponding parts throughout the severalviews.
Referring to the drawings, A denotes a cylindrical lire-tube steam-boiler which is supported by the usual side lugs or brackets, the lower ends of which are embedded in the front and rear walls L of the brickwork inclosing the boiler, while the upper projecting ends of said lugs are riveted to the boiler in the usual manner. Between theend walls c of the brickwork and the boiler-heads is arranged a suiiicient space M for conducting the products of combustion from the furnace around the bottom and ends of the boiler and inwardly through the fire-tubes X, as shown by arrows in Fig. 3. The furnace Fis located centrally below the boiler and provided with two bridge- Walls F, which are arranged symmetrically' ,on each side of the vertical transverse center plane of the boiler A. The bridge-walls support the grate Gr, which may be any approved construction, the furnace being provided in the front and rear walls I) with suitable firedoors D and ash-pit doors E, as shown in Figs. fl and 4. The end walls C are also provided near the bottom with ash-doors E for removing the accumulated ashes `that are dropped from the hot gases on their course through the spaces M to the fire-tubes.
The boiler A is provided midway between its heads with an interior smoke-box S, the side Walls of which are provided at their upper ends with lianges that are riveted at t to the top part of the boiler, as shown clearly in Fig. 3. The smoke-box is of less depth than the boiler and forms segmental side spaces at the sides with the cylindrical boiler and a segmetal bottom space between it and the bottom of the boiler. The side walls of the smoke-box S are connected by the lire-tubes X with the `head of the boiler, the ends of said tubes being attached to the side walls of the smoke-box and the heads of the boiler. The
side walls of the smoke-box and the heads of the boiler A are supported by means of inclined braces of preferred type which extend from the side walls of the smoke-box and from the heads to the top of the shell of the boiler in order to impart the required strength to the upper portion or steam-space of the boiler. The top of the boiler is provided with the usual steam-outlet pipes at both sides of the smoke-box and with the usual manholes to give access to the interior of the boiler for cleaning the interior surface and tubes from adhering scale. The upper end of the smoke-box Sv is connected by a horizontally-disposed flue R with the chimney, (not shown,) said flue constituting the top of the smoke-box. The end walls c of the brickwork are provided with doors D' for giving access to both systems of fire-tubes from opposite ends for cleaning the same and with hand-hole doors H, so as to give access to the hand-holes arranged near the bottom of the boiler on both heads of the same for cleaning the same from sediments and incrustation adhering to the bottom of the boiler. The smoke-box S is connected with a horizontal flue U, which communicates with an opening in the front wall of the boiler-setting, so as to permit the cleaning of the bottom of the smoke box from accumulating ashes, &c. The Hue extends through the side wall of the boiler and is supported by an inwardly-extending abutment a, that is made in the front wall, so as to protect the flue and prevent the burning of the same by the products of combustion. Said flue communicates with a chamber 'u in the front wall, to which a door K is applied, so that ready access is given to the connecting-flue and the smoke-box.
In the upper part of the smoke-box is arranged a system of short horizontally-disposed superheating-tu bes Y,that extend transversely of the smoke-box and connect the steam-spaces at opposite sides of the same. The water should be kept at a level somewhat below the superheating-tubes Y, so that the steam in passing through said tubes receives the full heat of the products of combustion that circulate about the superheating-tubesl in the smoke-box and thence pass to the chimney, the walls of the smoke-box being heated also by the products of combustion drawn through the same, whereby the water and steam in the boiler are additionally heated. The tubes Y serve to thoroughly dry and superheat the steam in the steam-spaces of the boiler, as will be readily understood. The system of superheating-tubes is divided into two groups, which are separated by a central wider space, as shown in Fig. 4L.
The products of combustion from the fire in the furnace are divided and conducted over the symmetrically-arranged bridge-walls along the bottom of the boiler into the spaces M between the heads of the boiler and the end walls, from which the gases of combustion are conducted through the lire-tubes X,
thence into the smoke-box S, and from the latter around the system of superheatingtubes Y in the upper part of the same to the Chim.- ney. A large and efficient heating-surface for the water in the boiler is thereby obtained and the heat of the furnace utilized in a high degree. A perfect circulation of the water is induced in the boiler from the bottom upward and downward again, and the steam in the steam-spaces is moderately superheated, so as to be supplied in dry condition through the steam-pipes to the place of use. As all the parts of the steam-boiler and the smoke-box are accessible from the outside, the boiler can be readily andeffectively cleaned and kept in good order. A very eflicient boiler which produces with a smaller diameter of the boiler a larger amount of heating-surface and power, which has a large steam-space, and which supplies perfectly dry superheated steam is thereby obtained.
Having thusdescribed my invention, Iclaim as new and desire to secure by Letters Patentl. A steam-boiler comprising a shell, an interior smoke-box, lire-tubes' connecting the heads of said shell with said smoke-box, and superheating-tubes extending through said smoke-box and connecting the steam-spaces at either side thereof. i
2. A steam-boiler comprising a shell, an interior smoke-box, {ire-tubes extending between said smoke-box and the heads of said. shell, and superheating-tubes connecting opposite side walls of said smoke-box.
3. A steam-boiler comprising a shell, an interior smoke-box, {ire-tubes extending between said smoke-box and the heads of said shell, and horizontal ly-disposed superheatingtubes connecting opposite side walls of said l smoke-box.
4C. A steam-boiler comprising a shell, an interior smoke-box, {ire-tubes extending between opposite side walls of said smoke-box and the heads of said shell, and superheatingtubes connecting said opposite side walls and disposed above said lire-tubes.
5. A steam-boiler comprising a'shell, an interior smoke-box, fire-tubes communicating with opposite side walls of said smoke-box, and superheating-tubes connecting said opposite side walls, said superheating-tubes being divided into a plurality of groups.`
6. Asteam-boiler comprising a shell, an interior smoke-box, fire-tubes communicating with opposite side Walls of said smoke-box, and su perheating-tubes connecting said opposite side walls, said superheating-tubes being vertically divided into groups.
7. In a steam-boiler, the combination with the shell, of an interior smoke-box, a horizontally-disposed fiue superposed on said shell and constituting the top of said smoke-box, and iiretubes extending between said smokebox and the heads of said shell.
8. The combination, with a horizontal fire- IOO IIO`
ing above the tire-tubes and spaced from the boiler-heads, each of said end Walls being provided vvith openings and doors giving access to the fire-tubes.
1n testimony that I claim the foregoing as my invention I have signed my name in presence of. two subscribing Witnesses.
LEVI HUSSEY. Vitnesses:
PAUL GoEPnL, HENRY J. SUHRBIER.
US23883104A 1904-12-29 1904-12-29 Steam-boiler. Expired - Lifetime US787764A (en)

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