US701895A - Steam-generator. - Google Patents

Description

No. 70|,a95.. K Pannen lune lo, |902.

J. J. KlLsHA-w.

' STEAM GENERATOR.

(Application led Jl'xne 26, 1901.) (NQ Modal.) 3 Sheets-Sheet I.

wnNEssEs: INVENTOR,

@y i l /Mf 9M 9% BY" v /lz ATTO NEYS YN: Nonms PETERS w., PHOTO-umu., WASHINQTD". D. c.

No. 70|,895. Patented lunav l0, |902.

-. J. J. KILSHAW.v

STEAM GENERATOR.

(Applcation led June 26, 1901.) (No Model) 3 sngets-sheet 2.

NESSE INVENTOR Q m. W e. m.. Y m m Ai m Y m No. 7o|,a95. Patented :une |o`, |902.

, J. J. luLsHAw.l Y

STEAM GENERATOR.

(Application 'mea June 26, 1901.) (Nq Model.) s sheets-sheet 3,

1u: humus FEVER: 60:. Pnmau'mu.. WASHINGTON. D. C,

Nrren STATES "PATENT OFFICE.

JOHN J. KILSHAW, OF BROOKLYN, NEWv YORK.

STEAM-GENERATOR.

SPECIFICATION formingrpar't Of Leiters Patent 0. 701,895, dated June 10, 1902.

Application filed Tune 26, 1901. Serial No. 66.144. (No model.)

To @ZZ whom it may conocrm' Be it known thatI, JOHN'J. KILSHAW, a citizen of the United States of America, and a resident of the city of New York', borough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Steam-Generators, of which the following is a specication, reference being had to the accompanying'd-rawings, forming a part thereof.

My invention relates to improvements in steam-generators, and particularly to that class of steam-generators known as tubular or water-tube boilers. j

My improved steam-generator comprises a casing 'havingwithin' it a suitable furnacel and longitudinal water-drums arranged one' and are' preferably curved throughout their entire length'v upon arcs of circles. The curved generating-tubes are further preferably equally disposed upon opposite sides of the said generating-tubes, whereby a balance of pressure and strain is effected. Longitudinal dividing-walls are provided which are located within the nests of tubes connecting the steam and water drums and divide the space within the casing into a combustion-chamber and two return passages or lflues.

The objects of my invention are generally to improve steam-generators of this type; to construct a generatorin which there are long passages for the products' of combustion and in which the generating-tubes are at right angles to the path of said products of combustion throughout their passage; to provide a construction whereby certain of the generating-tubes between the steam and water drums, being straight, will themselves form stays between the said drums, and the other generating-tubes arranged on opposite sides, being curved, will provide for the necessary hereinafter. I

shown.

contraction and expansion; to equalize or balance the strain and pressure by equally disposing the curved generating-tubeson opposite sides of the straight generating-tubes;

to provide generating-tubes in which there are no sharp 'bends at which'fscale maydeposit, and to providev a vconstruction which shall be easy to manufacture, 'simple toassemble, and easy to clean and keep in repair.

My invention further consists in certain noveldetails of construction and combination of parts, as shall hereinafter more fully appear, and other advantagesA will appear -II will nowproceed-to describe a steam-generator embodying my inventionand will then l l point out the novel features in the claim.

Inl the drawings, Figure 1 lrepresents a transverse section of a steam-generator embodying my invention. Fig. 2 is aview in central longitudinal section of the f same. Fig. 3 is a view in front elevation, with the casing partially broken away at one side, of a'steam-generator embodying my invention, but having a structure slightly modilied from that shown in Figs. l and 2. Y

In the embodiment of my inventionyherein illustratedI have shown thelordinary form of grate 1 andbridge 2, at the rear. thereof, to form the lire-box of the furnacepwhicl is in tended to deliver heat from burning coal;

Vbutit is within the purview of this invention to employ any form of furnace or heating medium, as may be desired. For instance, I

may burn gas or oil, if desired, instead of as is shown in the structure of Figs. 1 and 2. f

I provide a plurality of generating-tubes 5, connecting the steam and water drums, as

These generating tubes 5 are arranged in two nests, each nest connecting one of the said water-drums 3 with the steam-drum 4. Each nest comprises a series or rows of IOO tubes, and for the purpose of manufacture and assemblage these tubes preferably connect with the said drums upon lines substantially radial thereof. The said tubes may be expanded into the drums in the usual manner, and it will be noted that the said tubes are all either straight or have a uniform and gentle curve throughout their length, so that there are no sharp bends therein at which scale may be deposited.

I provide two longitudinal dividing-walls or partitions 6, each of said dividing-walls being located within one of the nests of the tubes. A casing 7 surrounds the drums, generatingtubes, and furnace, and the said dividingwalls or partitions extend clear to the front wall of said casing, but do not extend entirely to the rear wall thereof. The said dividingwalls or partitions divide the space inclosed within the casing substantially into a cornbustion-chamber, which I have designated, as a whole, by the reference character 8, and two return iiues or passages 9. The return fines or passages 9 connect with uptake connections 10, leading to a flue ll, which may connect with a suitable stack.

I have provided the drums with suitable manholes at their ends, through which access may be had to the interior thereof, and I have provided suitable doors in the casing by which access may be had to the said manholes, to the furnace, to the ash-pit, and to the other parts of the generator.

In locating the dividing-Walls or partitions G within the nests of generating-tubes it will be seen that I have not only divided the space inclosed by the casing into a combustionchamber and two return flues or passages, but I have thereby so arranged that a certain number of the said generating-tubes shall be within the combustion-chamber and shall receive the direct action of the products of combustion, while certain others of the tubes will be located within the return-passages and shall receive the action of the products of combustion only upon their return through the said return-passages. By this arrangement I obtain a complete and thorough circulation ofthe water within the generator while giving it the least movement in such circulation. It will further be seen that the generating-tubes are all at right angles to the path of the products of combustion, and hence are in the most eifective positions for receiving the heat therefrom.

It is obvious that modifications of my invention may be resorted to without departing from the spirit and scope thereof, and I do not, therefore, desire to be limited only to the precise construction shown.

lVhat I claim is- In a steam-generator, the combination with a casing having within it a furnace, of waterdrums at the sides of the furnace, a steamdrum above said Water-drums, said steamdrum comprising two members arranged side by side, and out of water communication with each other except through the generating-tubes and water-drums, generating-tubes connecting the steam with the Water-drums, and two longitudinal dividing-walls each located within the nest of generating-tubes connecting one of the said water-drums with one of the said steam-drum members, said longitudinal dividing-walls dividing the space into a combustion-chamber and two return-passages.

JOHN J. KILSHAVV.

XVitnesses:

D. HOWARD IIArWooD, A. Il. PERLES.

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