US841368A - Pipe-boiler. - Google Patents

Description

'No. 841,368. PATENTED JAN. 15, 1907. J. L. ANDERSON.

PIPE BOILER.

APPLICATION FILED JAN.17, 1906.

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PATENTED JAN; 15, 1907..

J. L. ANDERSON.

PIPE BOILER. APPLICATION FILED JAN. 17, 1906.

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PIPE-BOILER.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed January 17, 1906. Serial No. 296,510.

To a 11/71/0172 it may concern.-

Be it known that I, JOHN L. ANDERSON, a

citizen of the United States, residing at Seattle, in the county of King and State of Washington, have, invented certain new and useful Improvements in Pipe-Boilers, of which the following is a specification, reference being had therein to the accompanying drawings, in which Figure 1 is a transverse section, and Fig. 2 a longitudinal section, of a pipe-boiler embodying my improvements.

The object of the invention is the provision of an efficient steam-generator which is of compact andinexpensive construction.

The invention consists in the novel construction, disposition, and combination of parts, as will be hereinafter described, and more particularly pointed out in the appended claims.

In the said drawings the reference-numeral 5 designates the inclosing case or shell of my steam-generator, which case is made of sheet-iron or other suit able material and is provided with a stoke-opening 6 in the front face and a smoke-outlet 7 at the top. The inner surface of the case and for some distance above the grate 8 is. desirably lined with fire-brick, clay, or asbestos, as at 9.

Extending longitudinally through the case and adjacent to its top is a steam-drum 10, which is connected exteriorly of the case by inclined water-legs 11 with the longitudinal mud-drums 12, positioned in proximity to the lower edges of the side walls of the case. Projecting from the said mud-drums are upflow water- pipes 13 and 14, which are respectively connected with enlarged pro ' longations 13 and 14, while the pipes 13 upon one side are communicatively connected by horizontal pipes 15 with the like members upon the other side. Arranged at each side of the steam-drum and connected therewith are inclined wing- pipes 16 and 17, which are connected by return-flow supporting-pipes 18 and steam-generating coils 19 and 20 with the portions 13 and 14 of the aforesaid upflowpipes.

Interiorly of the st eam-drum and opposite the discharge-orifices of the said wing-pipes are shield-plates 21 to prevent the steam entering the drum coming into immediate contact with the body of contained steam, and such shield-plates also serve to collect such unevaporated water as may be conveyed with the incoming steam, which water gravitates to the bottom of the drum and thence is returned to the mud-drums through the said water-legs.

A perforated dry pipe 22 is provided within the steam-drum and has outlet connections, such as 23 and 24, through which the steam is withdrawn for service. The feedwater to supply the boiler passes through an intake-pipe 25, thence through series of pipecoils 26, positioned within the case in proximity of the said smokeoutlet, and thence into the steam-drum through pipes 27 and 28. The lastna med pipe is desirably ar ranged horizontally and adjacent of the bottom of the steam-drum and is desirably perforated in order to distribute the water throughout its length upon the bottom of the drum, from where it enters the said waterlegs and passes, as aforesaid, therethough to the mud-drums.

Cross-bars 29, seated upon the top of the drum and having their ends sustained by rods 29 from the casing, mayadvantageously be employed for supporting the said feed-water coils.

Baffle- plates 30 and 30 are respectively provided at the front and rear of the casing and at diflerent elevations to direct the hot combustive gases emanating from the fire to act most effectively upon the various aforesaid pipes and coils within the casing.

To further utilize the heat of the fire, grilles of pipe 31 and 31 are respectively provided at the front and rear of the furnace portion of the case.

The operation of my invention may be briefly stated as follows: The water passing through the pipe-coils 26 has its temperature raised to a high degree as it is discharged into the steam-drum 10 wherein it mixes with the condensations, if any, which prevail therein,

legs 11 to the mud-drums 12. The coils 19 and 20, which are subjected to the heat of the fire, effect the generation of steam, and a consequent movement is imparted to the water through the upflow- pipes 13 and 14 to replace such water when converted into steam. The steam is delivered from the coils 19 into the wings- pipes 16 and 17, from whence it flows into the steam-drum for use. Should water in an unevaporated state accompany the steam from the generatingcoils, it is ordinarily trapped in the said wing-pipes and returned therefrom to the pipes 13 and 14 by the pipes 18. Under and the mixture is conveyed by the water exceptional conditions, however, this may not suffice to liberate all of the water, and it is further separated by the shieldplates within the steamdrum, as heretofore explained.

The advantages of the invention reside principally in its effectiveness to cause a rapid and complete circulation of the contained water, the disposal of the pipes and deflectors to subject the steam-generating members to the full effect of the heat, and in the means for separating the steam from the water immediately before and upon its entry into the steam-drums.

In its construction also the invention is such that access is to be had to the several parts, which are arranged andassembled so as to permit their being independently removed.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with the steam and mud drums connected by water legs, of water-upflow pipes projecting from said mud-drums and terminating in enlarged portions, wing-pipes connected directly to said steam-drum, supporting connections between the said wing-pipes and the upflowpipes, and steam-generating coils connecting the wing-pipes on one side of the boiler to the upflow-pipes on the other side of the boiler.

2. A pipe-boiler, comprising mud-drums, a steam-drum, water-legs connecting the mud and steam drums, two series of upflow pipes connected to each of said mud-drums,

one series of said upflow-pipes of one of the mud-drums being connected with those of like series upon the other mud-drum, a plurality of wing-pipes upon each side of said steam-drum and severally connected thereto, steam-generating coils connecting said upflow -pipes with said wing-pipes and the shield-plates within said steam-drum.

3. In a pipe-boiler, the combination with a steam-drum provided interiorly with shield-plates, said plates, a perforated dry pipe within the said drum, two mud-drums, connections between each of said muddrums at its opposite ends with said steam-drum, upflow pipes extending from said muddrums, a plurality of steam-generating coils connecting said upflow-pipes with inclined wing-pipes disposed upon the opposite side of the steam-drum, and the said wing-pipes.

4. In a pipe-boiler, the combination with a steam-drum provided interiorly with shield-plates, said plates, of two mud-drums, connections between each of said mud-drums at its opposite ends with said steam-drum, upflow pipes extending from said muddrums, a plurality of steam-generating coils connecting the upfiow-pipes upon one side of the drum with inclined wing-pipes disposed upon the other side of the steam-drum, and the said wing-pipes.

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

JOHN L. ANDERSON;

lVitnesses:

PIERRE BARNES, L. B. MAXSON.

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