US821329A - Water-tube boiler. - Google Patents

Description

No. 82L329. PATENTBD MAY 22, 1906. J. G. BEGKLEY,

WATER TUBE BOILER.

APPLICATION FILED I'EB.10. 1906.

2 SHEETS-SHEBT-l.

mouw l1 annum C04, PNorn-Llvnncmuins. wnsnmmorl, n. c.

PATENTED MAY 22, 1906.

J. C. BEGKLEY.

WATER TUBE BOILER.

IGATIDN FILED PEB 10, 1906.

JOSEPH O. BECKLEY, OF DAYTON, OHIO.

WATER-TUBE BOILER.

Specication of Letters Patent.

Patented May 22, 1906.

Application filed February 10, 1906. Serial No. 300,519.

i To a/ZZ whom it may concern:

Be it known that I, JOSEPH C. BECKLEY, a citizen ofthe United States, residing at Dayton,.in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Upright Water-Tube Boilers; and I do declare theV following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to the accompanying drawings, and to the Yligures of reference marked thereon, which form a part of this specification.,

This invention relates to improvements in upright water-tube boilers.

The objects of the invention are to make an internal-tiring boiler with certain well-defined advantages, hereinafter described. By the term internal firing I mean a boiler in which the 'fire-box is in closed throughout its sides and top by a water-chamber, so that the gases or products of combustion pass from the upper end of the rebox. out through a Yfire-tube, coming in contact with said water-tubes on all sides, and thence extending upwardly around the sides of a steamdrum to superheat the steam therein. A portion oi the circulating-tubes are deiiected inwardly from a perpendicular line to baffle or delect the heat rising from the fire-box. The heat ,heretofore lost in this type of boil ers by being permitted to escape directly Jfrom the fire-box to the outlet-flue is thus utilized in the present case to add further heat to the water-tubes after it leaves the fire-box and iinally to superheat `the steam in the drum and make it dry. The result is that a more rapid and thorough generation oi heat is obtained and a greater amount ofthe heat from the iire-box is utilized. The casing is detachable from the water-leg to gain access to the water-tubes or steam-drum, and the necessity of bricking up the water-tubes, as is commonly the case 1n water-tube boilers, is avoided, and a Jfurther advantage due to the present improvements is that the boiler may be either ortable lor stationary.

Precedmg a detail description of the invention reference is made to the accompanying drawings, of which- Figure 1 is a vertical elevation of my im* proved water-tube boiler with a portion of the casing broken away and a portion of the Water-tubes and the steam-drum and other parts appearing in section. Fig. 2 is an enlarged diagram showing the arrangement of the tubes on the line :n :c of Fig. 1. a

In a detail description of the invention similar reference characters indicate corresponding parts. y

1 designates the re-box, surrounded by a water-leg 2, which increases in area in its upper terminal and projects a substantial distance above the fire-box, as at 3, thereby reducing the heat-passage from the ire-box- Mounted upon the water-leg is a casing composed oi' sections 4-, 5, 6, and 7 and terminating at its upper end in a cone 8, forming the outlet-flue. These sections are united at their adjacent ends in amanner to permit of their detachment in order to gain access to the interior of the casing. The lower section 4 of said casing flares outwardly from the upper end of the water-leg to increase the area of space throughout the length of the casing. It will be observed that the volh urne ofwater within the space inclosing the sides of the fire-box is considerably reduced in thickness as compared with the width of the water-leg above the sides of' the fire-box. Therefore it will be seen that the water within this reduced portion of the water-leg will be of covers 9, and an upperseries of hand-holes, I

also closed by means oi' covers 9. A greater' percentage of such matter is prevented from entering the water-tubes from the` water-leg, and the common annoyance due to the formation of incrustation onthe interior of the water-tubes is prevented.`

Connected with and extending upwardly from the water-leg is a series of water-tubes 12, which are connected at their upper ends to a steam -drum 13, arranged at the to of the casing and having its top or heat 14 braced with a suitable number of stays 15. The head of this steam-drum is provided with. a manhole and cover 16 to permit access thereto. The water tubes 12 so interposed between the water-leg and the steamdrum are arranged in inner and outer rows. The tubes of the outer rows and some of those of the innermost row extend in a per- IOC pendicular manner, while some of the tubes of the innermost row slant inwardly. toward the center of the steam-drum and connect with said steam-drum at points inwardly from the points of lconnections between said slanting tubes and the water-leg. By thus inclining a desirable number of said tubes effective means is provided for baffling the heat and causing said heat to disperse in a manner to effectually spread over the surface of the tubes. Suspended from the bottom of the steam-drum 13 in a central position is a deflecting plate or shield 17, which lies a suitable distance above the entrance from the hre-box. This deiiecting-plate 17 is suspendedby means of a rod 18, and the purpose of such plate is to prevent the heat or iire from traveling up the center of the assembled tubes. The heat or flames striking this plate as they emerge from the fire-box will be deflected laterally onto the tubes and will practically assume a course as indicated by the arrows, Fig. 1. The fire and gases thus passing throughout the assembled tubes are affled in their passage to the steam-drum 13 by the inclined tubes and striking the bottom of the steam-drum are deflected outwardly between the sides of said steam-drum and the surrounding casing, from whence it escapes through the outlet-flue after a maximum amount of the heat has been utilized. As before stated, the casing constructed of the united sections is detachable without disturbing the arrangement of the water-leg, tubes, or steam-drum, and the necessity of bricking up the water-tubes, as is commonly done in upright-boiler tubes, is avoided.

Means are provided for thoroughly and quickly cleansing the water-tubes of the accumulation of soot. These means consist of a circular pipe 11, arranged immediately above the water-leg and surrounding the base of the water-tubes. This circular pipe 11 has a multiplicity of small holes 19 throughout its circular form and in positions to emit small jets of steam onto the base of the water-tubes and to thus remove the soot. The pipe 11 is connected to the steamdrum 13 by an upright pipe 20, which is controlled by a valve 21 and by means of which the steam is admitted to the pipe 11 for the purposes specified.

Having described my invention, I claim- 1. In an upright water-tube boiler, a firebox, a water-leg surrounding said fire-box and projecting inwardly above the sides of said fire-box, a cylindrical casing in sections mounted upon said water-leg, a steam-drum j in the upper portion of said casing, a series of perpendicular water-tubes connecting the water-leg and the stream-drum, and a series of inclined water-tubes connecting the water-leg and steam-drum at points inwardly from the points of connection of the perpendicular tubes with said steam-drum.

2. 1n an upright water-tube boiler, a firebox, a water-leg surrounding the sides of said hre-box and projecting inwardly at the top of. the fire-box, said water-leg having a greater transverse area of space above the iire-box, a steam-drum, a series of perpendicular water-tubes connecting the water-leg with the steam-drum, a series of inclined water-tubes forming communications between f the inner portion of the water-leg and the middle portion of the steam-drum, and a cleansing device consisting ofl a circular jetpipe surrounding the base of the watertubes, and a connection between the steam- `drum and said jet-pipe.

3. In an upright water-tube boiler, a firebox, a water-leg inclosing the sides of said fire-box and having its upper end increased in area and extending inwardly above the top of the fire-box and surrounding the space leading from the fire-box, a cylindrical casing mounted upon said water-leg, a steam-drum located at the upper end of said casing, a plurality of water-tubes connecting said waterleg with thesteam-drum, the outer rows of said water-tubes and a portion of the innermost row of said water-tubes extending in perpendicular positions, and a portion of the innermost row of tubes extending in inclinations and connecting with the steam-drum at points inwardly from the connections thereof with the water-leg, a jet-pipe surrounding said water-tubes at the points of their connections with the water-leg, and a pipe connecting said jet-pipe with the steam-drum.

4. ln an upright water-tube boiler, a firebox, a water-leg inclosing ythe sides of said hre-box, the upper portion of said water-leg being increased in area to extend inwardly above the top of the fire-box and reduce the space leading from the lire-box, a cylindrical casing mounted upon said water-leg, a steamdrum in the upper portion of ksaid casing near the outlet-liuc in the top of said casing, a plurality of water-tubes connecting said waterleg with the steam-drum, portions of said tubes extending perpendicularly, and a portion of said tubes extending` in inclinations and connecting with the steam-drum at points inwardly from the connections of the perpendicular pipes therewith, a deliectingplate suspended centrally above the fire-box, and a jet-pipe inclosing the base of the watertubes and having a connection with the steam-drum.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH C. BECKLEY. Witnesses:

R. J. McCAR'rY, C. M. THEQBALD.

IIO

Images