US408098A - Steam-boiler furnace - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. J. L. GILL, Jr. STEAM BOILER PURNAGE. No. L108,098. Patented Ju1y`80, 18898.

Emy/1 il li g1 Ii I l l i (No Model.) 2 SheetsHSheet 2.. J. L. GILL, Jr.

- STEAM BOILER PURNAGE. No. 408,098. Patented July 30, 1889.

UNITED STATES PATENT OFFICE.

JOHN L. GILL, JR., OF PHILADELPHIA, PENNSYLVANIA.

STEAM-BOILER FU RNACE.

SPECIFICATION forming part of Letters Patent No. 408,(598, dated July 30, 1889.

`Application filed October 3,1888. Serial No. 287,085. (No model.)

.To all whom i may concern:

Be it known that I, JOHN L. GILL, J r., a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Flues for Distributing Draft Effect to Steam-Boilers Having One Chimney in Common; and I do hereby declare the following to be a sufficiently full, clear, and exact description thereof as to enable others skilled in the art to make and use said invention.

This invention relates to fines for dischargingproducts of combustion from several nests of boilers, and has for its object the equal distribution and regulation of draft effect upon each boiler without affecting the draft of others and the facility of alternately discharging the products of combustion either directly into the atmosphere or through a water-heating apparatus known as an economizer.

While there are shown in the drawings other novel features besides these herein claimed, those' which are properly a part of the construction and arrangement of boiler houses are herein' shown only to better illustrate this invention, but are the subject of the claims of another application for Letters Patent filed October 8, 1888, and serially numbered 287,084.

To effect these desiderata, this invention consists of the arrangement and combination of flues with passages for access thereto, chimneys, and dampers,hereinafter described, and shown in the accompanying` drawings, in which- Y Figure l shows a transverse vertical sec# tion of a three-story boilerfhouse and steamgenerating plant embodying this invention, and Fig. 2 is a rear View vertical section of a boiler-plant in the same boiler-house. The saine reference-marks indicate like parts in both figures.

A', A2, A3, and A4 represent boilers or steamgenerators resting on the ground-floor, and may be either water-tube boilers or returntubulars. B', B2, B3, and B4 are steam-generators in similar settings on the second iioor.

G' and C2 are nests of economizers on the third ioor.l

D is a chimney, which may be made of metal throughout or masonry throughout, but preferably in brick or masonry extending above the roof-line of the building, and there may be contracted and supplemented by a cylindrical metallic stack D.

D is the extension of the chimney above the roof, which may be made of metal or masonry. Y

D2 are vertical divisions of the fines E' E2 E3 E4 and F', F2, F3, and F4, which are desirable but not essential.

D3 is a partition-wall which extends centrally from the bottom of the chimney to a point above the level of the secoud--story battery of boilers, or, in the case of the economizers being used, to a point. above the level of the upper part of the economizers C and C2.

E', E2, E3, and E*L are flues leading laterally from the furnaces A', A2, A2, and A4 to the base of the stack D, which is expanded at the point of the intersection of the flues F', F2, F2, and F4, so that at this point the chimney is equal in cross-sectional area to the several iues E', E2, E2, and E4 and F', F2, F2, and F4.

Beneath the fines E', E2,E2, and Efl and F', F2, F3, and F4, and between the rear of the boiler-settin gs and the outer wall of the building, are passage-ways R and R for access to the rear of the boilers and flues through doors (marked S and S') opening from said passages R and R' into the rear of the boiler furnaces or settings.

G G are lateral lines for conducting the heat and waste gases from the chimney to the rear end of the economizers.

G G are openings in the stack, through which the gases pass into the llues G G.

H II are dampers, which close the openings G when in a vertical position and allow the products of combustion to directly ascendthe stack D, or when in a cross position close the stack above the opening G', so as to turn the gases into the flues G G. By the arrangement shown each boiler-furnace delivers its products of combustion through alateral flue into the chimney D in the direction of the draft of the chimney.

The partition D3 prevents the upward current of the gases from being broken by meeting volumes of cooler and unexpanded air or gas, and in combination with the damper H IOO the products of combustion are directed into the economizer (when one is used) in the manner shown, avoiding all descending drafts. Thus the products of combustion are directed and conveyed from each furnace withoutrisk of interference from the operation of any of the other furnaces.

Having described this invention and the operation thereof, what I claim isl. In steam-boiler furnaces, the combination of the chimney D, having a partition D3, dividing the same to a point above the highest boiler-setting, with lateral `hues leading from each furnace and terminating in a vertical iiue in the chimney D, substantially as set forth and shown.

2. In steam-boiler furnaces, the cliimneyD, in combination with lateral fiues E E2 and F and F2, terminating vertically in the chimney D, With the eeonomizer C', located above the boilerfurnaces and provided with a damper H, arranged to alternately direct the products of Acombustion through the econonlizer in one adjustment or to discharge them directly through the chimney, substantially as shown and described.

In steam-boiler furnaces, the combination of a series of lateral fines El E2 E3 E4 and E, F2, F3, and F4 with the passage-Ways Rand R under said fiues for access to the rear of therboiler tubes and settings, arranged substantially as shown and described.

JOHN L. GILL, JR.

W'itnesses:

S. LLOYD WIEGAND, JAMES P. PETIT.

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