US120937A - Improvement in steam-generators - Google Patents

Improvement in steam-generators Download PDF

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US120937A
US120937A US120937DA US120937A US 120937 A US120937 A US 120937A US 120937D A US120937D A US 120937DA US 120937 A US120937 A US 120937A
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steam
generators
improvement
sides
rods
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B23/00—Water-tube boilers built-up from sets of spaced double-walled water tubes of return type in unilateral abutting connection with a boiler drum or with a header box, i.e. built-up from Field water tubes comprising an inner tube arranged within an outer unilaterally-closed tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B1/00—Combustion apparatus using only lump fuel
    • F23B1/02—Combustion apparatus using only lump fuel for indirect heating of a medium in a vessel, e.g. for boiling water
    • F23B1/04—External furnaces, i.e. with furnace in front of the vessel
    • F23B1/06—External furnaces, i.e. with furnace in front of the vessel for heating water-tube boilers, e.g. Tenbrink flue furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B2700/00—Combustion apparatus for solid fuel
    • F23B2700/01—Combustion apparatus for solid fuel adapted for boilers built up from sections

Definitions

  • My invention has for its object to remedy certain disadvantages arising from this construction and consists in so forming and connecting the sides of each compartment or generator that while the circulation of the wateror steam is left perfectly free there shall be no waste of heating surface; or, in other words, every portion of the surface be freely exposed to water or steam on one side and the action of flame or heat on the other.
  • This produces a manifest advantage in respect to capacity of the boiler for pro ducing a given amount of steam from a given quantity of water in a given time and with a given temperature. It avoids, further, any liability of corrosion or deposit of sediment or any foreign mineral substance around the bolts, 85c.
  • a are the compartments aforesaid, anyconvenient number being employed, say six or more, the same being placed vertically on their edges, side by side, at suitable intervals, and connected by tubes 12 extending from their upper edges, with a pipe, 0, for carrying on" steam, the generators being also supplied with water-pipes.
  • the sides of the generators are connected by means of transverse stay-rods (I placed in parallel rows at equal distances apart, the spaces between the rods in each row being also equal.
  • the swellings or bulges above referred to are shown at 6, there being one bulge between each set of four contiguous stay-rods, so that a section, like those in Fig. 2, cutting any one of the rows of stay-rods, has serpentine sides, the stay-rods connecting the bottoms of the external hollows or, what is the same thing, the apices of the internal bulges.
  • This construction disposes the sides of the generators in series of arches, those of each series radiating in all (lirections from a common keypoint; hence results immense strength and also increased heatingsurface.
  • the thickness of the plates can be much less than that of plane plates of only equal strength.
  • the water-line can be placed at any convenient height, the furnace-fire being prevented from mounting above the waterline by means of strips of iron placed between the compartments.
  • On the same principle may be constructed boilers not in separate compartments, and also fire-boxes in locomotives.

Description

NITED PATENT FFIGE.
IMPROVEMENT IN STEAM-GENERATORS.
Specification forming part of Letters Patent No. 120,937, dated November 14, 1871.
To all whom it may concern.-
Be it known that I, WILLIAM BYERs, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain Improvements in Steam-Generators; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reffclass of steam-generators formed in separate compartments, with alternating convexities and concavities on one or both sides. Heretofore these have been so constructed that the two plates composing them touch or come in contact at every point where a concavity or inward protuberance occurs. My invention has for its object to remedy certain disadvantages arising from this construction and consists in so forming and connecting the sides of each compartment or generator that while the circulation of the wateror steam is left perfectly free there shall be no waste of heating surface; or, in other words, every portion of the surface be freely exposed to water or steam on one side and the action of flame or heat on the other. This produces a manifest advantage in respect to capacity of the boiler for pro ducing a given amount of steam from a given quantity of water in a given time and with a given temperature. It avoids, further, any liability of corrosion or deposit of sediment or any foreign mineral substance around the bolts, 85c.
Referring to the drawing, a are the compartments aforesaid, anyconvenient number being employed, say six or more, the same being placed vertically on their edges, side by side, at suitable intervals, and connected by tubes 12 extending from their upper edges, with a pipe, 0, for carrying on" steam, the generators being also supplied with water-pipes. The sides of the generators are connected by means of transverse stay-rods (I placed in parallel rows at equal distances apart, the spaces between the rods in each row being also equal. The swellings or bulges above referred to are shown at 6, there being one bulge between each set of four contiguous stay-rods, so that a section, like those in Fig. 2, cutting any one of the rows of stay-rods, has serpentine sides, the stay-rods connecting the bottoms of the external hollows or, what is the same thing, the apices of the internal bulges.
This construction disposes the sides of the generators in series of arches, those of each series radiating in all (lirections from a common keypoint; hence results immense strength and also increased heatingsurface. The thickness of the plates can be much less than that of plane plates of only equal strength. The water-line can be placed at any convenient height, the furnace-fire being prevented from mounting above the waterline by means of strips of iron placed between the compartments. On the same principle may be constructed boilers not in separate compartments, and also fire-boxes in locomotives.
I do not claim a steam-generator whose sides are formed with convexities and concavities; but
' What I do claim is-- The steam-generator herein described, formed of plates, each provided with equal and alternating eonvexities and concavities, and united by stayrods or bolts (1 so as to leave a water and steam-spacebetween them, as and for the purpose specified.
WILLIAM BYERS.
US120937D Improvement in steam-generators Expired - Lifetime US120937A (en)

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