US100359A - Improved combined engine-boiler and super-heater - Google Patents

Improved combined engine-boiler and super-heater Download PDF

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US100359A
US100359A US100359DA US100359A US 100359 A US100359 A US 100359A US 100359D A US100359D A US 100359DA US 100359 A US100359 A US 100359A
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heater
super
boiler
steam
combined engine
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/22Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating

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  • My invent-ion relates -to the operation ot combined engines, in which the steam is first used in one cylinder at a high pressure'and afterward expansively in another cylinder to work at a low pressure with or without a vacuum, as obtained from condensation of the steam after it has performed its duty in the. sccond cylinder.
  • Said 'improvement consists in the'devices for passing the high pressure steam, after it has performed its dutyin the first cylinder, to asuper-heater from whence it is drawn to supply the second cylinder, and whereby it is so charged with heat as that, though expanded to many times its original bulk, it is free from that excessive condensation which takes place when worked expansively without being super-heated, and whereby its elastic force or pressure is increased.
  • the super heater C may be worked by passing the heated gases from the boiler into a distributing chamber, E, and from thence to or through the super-heater.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Description

ilhdtrd tatet 21tr-nt (attire.
F. B. BLANCHARD, 0F SPUYTEN vDUYVIL, NEW YORK.
Letters Patent No. 100,359, dated March 1. 1870; autedated Febfurua-ry 18, 1870.
IMPRGVED COMBINED ENGINE-BOILER AND SUPER-HEATER.
The Schedule referred to in these Letters Patent and making part of the lame To all whom it may concern Be it known that I, FnANoxs B. BLANCHARD, of Spuyten Duyvil, in the county of Westchester, and State ot' New York, have invented a new and useful Improvement in devices i'or Operating Steam-Engines, ot' which thc ihlltnving is -a full', clear, and exact description, reference being had to the accompanying drawing forming part oi' this specification, and in which- Figure l represents a longitudinal section cfa steamboiler and super-heater, with acombined engine (shown in part) connected therewith, hy way of illustrating my invention, and
Figure 2, a transverse section through the line l:t: x in tig. 1.
Similar letters ol' reierenee indicatel corresponding parts.
My invent-ion relates -to the operation ot combined engines, in which the steam is first used in one cylinder at a high pressure'and afterward expansively in another cylinder to work at a low pressure with or without a vacuum, as obtained from condensation of the steam after it has performed its duty in the. sccond cylinder.
In thus using steam, the loss which has heretofore ensued from condensation ofthe expanded and expanding steam in the second working cylinder, owing to the reduction in its temperature, has largely militated against the elicct. to be obtained from working combined engines in the manner described. invention obviates; and
Said 'improvement consists in the'devices for passing the high pressure steam, after it has performed its dutyin the first cylinder, to asuper-heater from whence it is drawn to supply the second cylinder, and whereby it is so charged with heat as that, though expanded to many times its original bulk, it is free from that excessive condensation which takes place when worked expansively without being super-heated, and whereby its elastic force or pressure is increased.
Referring to the accompanying drawing- This my -work expansively, under a superheatcd condition,
within the second or low-pressure cylinder, D, of the engine, after which it is permitted to escape by apipe,
d, or passed otlf to a condenser to establish a vacuum in connect-ion with the second cylinder for the purpose of increasing the power of the engine.
The timely admission and exhaust of the steam, under its .two conditions of high and low pressure to and from the cylinders, is controlled by separate valves to the two cylinders.
The super heater C may be worked by passing the heated gases from the boiler into a distributing chamber, E, and from thence to or through the super-heater.
From this description it will be seen Athat the highpressure steam, when expanded to work under a low pressure ina second cylinder, after it has performed its duty in a previous cylinder, is so charged with heat by the super-heater, as an intermediate device, that the usual loss of power by condensation is prevented, and that there is an increase in its elastic force or pressure.
What is here claimed, and desired tobe secured by Letters Patent, is-
The combination of the high and low-pressure steam cylinders B D, with a steam generator audsnperl heater, as herein described, whereby steam at a high pressure may be exhausted from .the one cylinderinto the super-heater, prior to its introduction `into and operation in an vexpanded condition in the second or low-pressure cylinder, substantially as set fort-h.
F. B. BLANCHARD.
Witnesses:
HENRY T. BROWN, HENRY PALMER.
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