US84607A - Improvement in steam-generators - Google Patents

Improvement in steam-generators Download PDF

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US84607A
US84607A US84607DA US84607A US 84607 A US84607 A US 84607A US 84607D A US84607D A US 84607DA US 84607 A US84607 A US 84607A
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headers
tubes
steam
generators
improvement
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B17/00Water-tube boilers of horizontally-inclined type, e.g. the water-tube sets being inclined slightly with respect to the horizontal plane
    • F22B17/02Water-tube boilers of horizontally-inclined type, e.g. the water-tube sets being inclined slightly with respect to the horizontal plane built-up from water-tube sets in abutting connection with two header boxes in common for all sets, e.g. with flat header boxes
    • F22B17/08Water-tube boilers of horizontally-inclined type, e.g. the water-tube sets being inclined slightly with respect to the horizontal plane built-up from water-tube sets in abutting connection with two header boxes in common for all sets, e.g. with flat header boxes the water-tube sets being curved

Description

' G.`W. BLAKE.
STEAM GENERATOR.
m i d W W y. W, 8 f.. w mf ,M a. ,f It; s W LU M yf 8 s GEORGE w. BLAKE, or NEW YORK, N. Y. Leners Pawn: No. 84,607, dated December 1, 1868.
IMPROVEIWENT IN vSTEAIVI-Ci-ENIERA'JI'ORS.
The Schedule referred 'to in these Letters Patent and making part of the same.
To all whom it ma/y conce-rn:
Be it known that I, GEORGE W. BLAKE, of the city, county, and State of New York, have invented a new and useful Improvement in Steam-Boilers or Generators, of whichvthe following is a full, clear, and exact description, reference being'had to the accompanying drawing, forming part of this specification, and in which- Figure l represents a longitudinal sectional eleva tion of a steam-generator constructed in accordance with my improvement;
.Figure 2, a front sectional elevation of the same, taken, as denoted by the line z z in iig. l, looking in direction of the arrow i and Figure 3, a sectional plan, taken as indicated by the line a: :t in fig.`1.
Similar letters of reference indicate corresponding parte.
My invention consists in a. series of tubes bent,'at a point intermediately of their length, to aright angle,- or approximating position, in combination with headers or chambers to the ends of the tubes thus angled or bent, and whereby, while intermediate joints .may be dispensed with,`increased .facility is afforded for contraction andexpansion of 'the tubes, without inju-i4 riously straining on their sockets or end-attachments to the headers or chambers.
Said invention also consists in a zigzag or triangular arrangement of the several tubes, forming-aseries of two or more rows, in combination withJa .waved or corrugated construction to or of theheaders Aor end, chambers, whereby a more perfect exposure Jof the tubesv to the action of the fire or `heatedgases is obtained.
Referring to the accompanying drawing;l
A repesents the tire-box or chamber.;
B, the ash-pit;
C, the outer walls or setting; v
D, the smoke-stack or chimney; and
E, a bridge vinterposed between the lire-bax and smoke-stack', said bridge being provided with a lower opening, a, through it, in addition to the regular passage-way above and over it.
F and G are water-boxes or. chambers, or, as they may be termed, headers, each box being complete in itself, and a number of them arranged side by side in each set or series F and G.
As here arranged, the lower series of headers G may be connected, by lbranches b, with'a water-receiving vessel or chamber, H, to whichwater may be supplied by or through a feed-pipe, c, vsaid headers here being shown as extending or running at a slight angle from a horizontal position below the bridge E, and connecting with the chamber H at foot of the smoke-stack, though this arrangement may be changed.
The upper headers F are of similar construction, but set vertically, orlslightly inclining om a vertical position, the same forming what may be termed the front of lthe generator, and connected, by branches d, with a steam-drum, I, made either entire or in sections, bolted together, with communication between them, and from which may project a steam-supply pipe e.
Odnnecting these headers F and G are tubes bent at points intermediate of their length, as, for instance, at j, so as to give them, an angled character, made up of horizontal or slightlyinclining arms h, and vertical or nearly-vertical legs fi. Said tubes are shown as of varied and gradually-increasin g length, extending over 4the lire-box, and beyond it, and so that a portion of them terminate in front of the bridge E, while others pass over and are extended downwards, on the rear side of it but such divided arrangement of them relatively to the bridge E, where the latter .is used, may
be changed.
By the angledvor bent formation of these tubes, and
connection of them at their front and rear or upper andlower ends to the headers or boxes F and Gr', a freedom for expansion and contraction is given them, both horizontally and vertically, from their ends as points of rest, and which prevents all injurious straining of them at their connections with the headers, while the'elbow or bend in them not being established by a joint, there is no exposure to leakage otherwise.
To secure a more perfect action of the lire and heated gases under and around them, and to promote a better circulation and exposure generally, said tubes are larranged in a zigzag manner as regards their connection with the headers, each header', or corresponding pair of headers F andl G, carrying two or more rows of` tubes, lying, as it were, side by side, with the tubesin one row disposed intermediately of the tubes in the next adjacent row. To accommodate this 'irregular arrangement of the tubes, the headers F and Glare made of a waved or corrugated shape at their sides, which construction also servesfto make the severalheaders in a series support each other.
no absolute necessity for any outside shell, which makes the generator strictly ofa tubular character, with, according to the arrangement shown, passage for the smoke and heated gases both, above and below the bridge E, the passage c contributing to establish free circulation of the heated gases to and around the lower portions of the tubes and headers with which said ends are connected. The upper and longer` setsl of tubes are designed to be only partly charged with water, whereby they serve as superheaterS, as Well as generators, the upper portions of the headers E constituting steam-spaces.
Inasmuch as the headers are each separate and complete in the formation of a series, every facility is aiiorded for removing one pair ofheaders, Fand Gr, with their attached tubes, by simply detaching them from the vessels or chambers H and I, without disturbing the remaining tubes and headers, should such separate removal be rendered necessary, either from the bursting of a tube or other cause.
If desired, the Whole arrangement, as regards the disposition of the tubes, may be inverted, the arms h lying undernlost, and legs 'L projecting upwards, with the fire-box and other portions of the generator arranged to snit, but such inverted disposition of the tubes is not considered as advantageous as the one shown in the drawing.
What is here claimed, and desired to be secured by Letters Patent, is
l. The arrangement of the hollow headers G and E with the pipes M, bent as described.
2. The hollow headers Gand F, of corrugated con* struction on their sides, to admit of the alternate triangular arrangement of the pipes, and to form a close joint with the adjacent header, as shown and described.
GEO. W. BLAKE.
Witnesses:
A. LE CLE-Ro, A. KINmR.
US84607D Improvement in steam-generators Expired - Lifetime US84607A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070246265A1 (en) * 2006-04-21 2007-10-25 Deboer Luc Drill string flow control valves and methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070246265A1 (en) * 2006-04-21 2007-10-25 Deboer Luc Drill string flow control valves and methods

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