US628044A - Water-tube boiler. - Google Patents

Description

No. 628,044. Patented my 4, |899.

,A E. a. sTETTlNlus. v

WATER TUBE BOILER.

(Application led Jan. 11, 1899.)

iNO Model.)

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"UNITED STATES PATENT OFFICE.

EDVARD R.v STE'ITINIUS, OF CHICAGO, ILLINOIS, 'ASSIGNOR TO THE `STIRLINGr COMPANY, OF SAME PLACE.

WATER-TUBE BOILER.

YSPEGI1`ICA'lI01\I forming part of Letters Patent No. 628,044, dated July 4,1899.

Application filed January ll, 1899. Serial No. 701,794. (No model.)

T0 a/ZZ whom, t may mwen/w' Be it known that-LEDWARD R. SrETTiNrUs,

acitizen'of the United States, residing at Chi-y cago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in VVater-Tube Boilers, of which the fol-- theinvention'consistsin the features and com-v binations hereinafter described and claimed.

In constructing a boiler in a/ccordance with my invention I useran upper drum A, divided into compartments by diaphragms` or partitions d and a', the former being perforated from bottom to'topand the latter perforated above the water-line only, a lower drum B, having internal battle-plates t) and b', watertubes C, communicatingr between the upper and lower dru1ns,tirebrick walls or partitions D and D',arranged verticallyamong the tubes, and a casing E, surrounding or inclosing the variousfparts forming the' boiler proper.

There are of course afirepla'ce, a chimney, and other parts or details; but as these will be readily understood nospecial description thereof is considered necessary.

In operation feed-water is introduced into the upperdrum throughtheinletct2,behind the vertical rear wall or partition D', and immediately passes down through the tubes into the rear portion of the lower drum, where, owing to previous heating, a considerable portion of its sedi ment is deposited,which sediment maybe removedv by a blow-oit b2 or otherwise. Passing over the bafie-plate b and down under t-he battle-plate b the water goes forward in the mud-drum and up through the tubes forward of the front vertical wall or partition D into the front portion of the upper drum, whence, the perforatedv partition a, notpreventing, it again passes down through the tubesbetween the two vertical walls into the lower mud-drum, and so on in circuit.

The advantages of my invention are that it provides, first, a compact construction having an upper drum and a lower drum, the former being subdivided into three different chambers to provideV for the free circulation of water without the danger of foaming or improve.

unequal and irregular water-levels and a porA tion of the latter acting as a' settling-cham ber; second, for` gradually heating the feedwater, before it passes into the hottest parts of the boiler, by steam passing through 'the' perforated portion of the rear diaphragm 'as well as by the' escaping gases comingin contact with the tubes forming the rear bank,thus

performing the functions ot' an 'economizer or live-steam puriier, and, third, the separation of the tubes into different `banks is such` that the gases are .compelled to make three izing the highest possible proportion of the heat units contained in the fuel.

Although vI prefer to use my improvements together, it will of course be understood that this is not'necessary, the same being capable of separate use, and generally it will be understood that'I do not intend` to limit myself to minor features or details of construction, it being my intention to vary form or construction, omit parts, or use equivalents as circumstances may suggest or render expedient.

1. In a vertical water-tube boiler, the oombination of an upper drum provided with a front an intermediate and a rear compartment separated one from the other by diaphragms permitting free communication between the front and intermediate compartmentsand closing communication exceptv at the top between the intermediate and rear compartments,'alowermud-drum, tubes connecting the upper and lower drums, and vertical walls or partitions in the tube-chamber, one wall extending upward and the other downward dividing the tubes into sections corresponding to the compartments of the IOO connecting the upper and lower drums, a Vertical wall or partition extending upwardly between the tubes, a vertical wall or partition extending downwardly between the tubes, the two walls alining with the diaphragms or partitions of the upper drum dividing the tubes into sections corresponding to the compartments of the upper drum for each section of tubes to have communication with itsA tance between the two drums, whereby the course of the gases is directed in and among 25 the tubes, substantially as described.

4. In a vertical water-tube boiler, the coinbination of an upper steam-and-water drum having two diaphragins therein arranged in Vertical planes, the front diaphragm being perforated from bottom to top and the rear diaphragm perforated above the water-line only, a lower mud-drum having baffle-plates arranged therein in substantially vertical planes, one in rear of the other, tubes connecting the upper and lower drums, a vertical Wall or partition extending upwardly among the tubes from the lower drum to a point more than half the distance between the two drums, and a vertical wall or partition in the rearthereofextendingdownwardlyamong the tubes from the upper drum to a point more than half the distance between the two drums, whereby the course of the gases is directed in and among the tubes,.substan tially as described.

EDVARD R. STETTINIUS.

Witnesses:

EPHRAIM BANNING, BELLE W. BARRY.

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