US159902A - Improvement in steam-boiler furnaces - Google Patents
Improvement in steam-boiler furnaces Download PDFInfo
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- US159902A US159902A US159902DA US159902A US 159902 A US159902 A US 159902A US 159902D A US159902D A US 159902DA US 159902 A US159902 A US 159902A
- Authority
- US
- United States
- Prior art keywords
- steam
- boiler
- combustion
- improvement
- boiler furnaces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000002485 combustion reaction Methods 0.000 description 18
- 239000007789 gas Substances 0.000 description 14
- 239000000446 fuel Substances 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 8
- 239000002956 ash Substances 0.000 description 6
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 230000004941 influx Effects 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERALĀ ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/002—Supplying water
- F23L7/005—Evaporated water; Steam
Definitions
- This invention has for its object to so construct a boiler-furnace that the refuse, screenings, and slack of anthracite may be consumed therein for generating steam at a much less cost than it can be done with the more expensive qualities of fuel; and to this end it consists in forcing a blast of air into a tight ash-pit, and at the same time turning in a portion of the exhaust steam from the engine to loosen up and separate the fuel on a perforated plate-grate, allowing the air-blast from the ash-pit to pass up through the incandescent fuel to supply the necessary oxygen to produce combustion.
- a large portion of the gases are not ignited or consumed in the space in front of the bridge-wall, but pass behind it, where a portion of the air-blast (supplied by a fan) is mingled with them, and preferably a further supply of exhaust steam, which air and steam, mingling with the gases, supply thereto oxygen and hydrogen to produce perfect combustion.
- Figure 1 is a perspective view of a boiler and arch, showing the external arrangement of the fan, blastpipes, and exhauststeam pipes.
- Fig. 2 is a longitudinal vertical section at mm.
- Fig. 3 is a horizontal section at 3 y.
- A represents the arch, in which is set an ordinary flue or tubular boiler, B, provided with mud-pipe a, mud-drum b, smoke box and flue c, in the usual manner.
- 61 d are the fire-doors, and d the ash-pit door, which should fit air-tight, and be adapted to resist some little internal pressure.
- 0 is the bridge-wall, and 1) is a grate, formed of one or more plates, and drilled with numerous apertures, which may be about three-eighths of an inch in diameter.
- E is a blast-fan or pressure-blower, having a branched blast-pipe, 00',
- the former delivering its volume to the ash pit, and the latter to the combustionchamber.
- They are, respectively, provided with valves 9 g.
- G is a pipe leading through the bridge-wall, and is provided with a valve, 71., regulated from the outside of the arch.
- d is a door at the side of the arch, through which the ashes are renioved from the combustionchamber.
- d is a door at the back end of the arch for a like purpose.
- the apparatus is shown in connection with a stationary boiler, used for generating steam for a non-condensing engine; but it is equally adapted to marine boilers and condensing-engines, although in this latter case the influx of exhaust steam is substituted by the influx of live steam in intermittent puffs or blasts through proper mechanism actuating the.
- the pressure in the ash-pit can, with advantage, be decreased by partially opening the valve h in the pipe G through the bridgewall increasing the draft thereby in the combustion-chainber.
- WVhat I claim as my invention, and desire to secure by Letters Patent, is-- In a steam-boiler furnace, the combination of a perforated grate, a tight ash-pit, a steam- HENRY E. CHAMPION.
Description
H. E.- CHAMPHJN.
Steam-Boiler Furnace.
Pafented Feb. Imam.
w w w w w Ta w w w w a a b lg 0000 000 00000000 0000000 0000000 H ooooooo ooooooo ooommooo 000 0000 00000000 my? X HE GRAPHIC C0PHOTO-LlTR.39&4-1 PARK PLAG NITED STATES HENRY E. CHAMPION, or DETROIT, MICHIGAN.
IMPROVEMENT IN STEAM-BOILER FURNACES.
Specification forming part of Letters Patent No. 159,902, dated February 16, 1875; application filed February 16, 1874.
To all whom it may concern Be it known that I, HENRY E. CHAMPION, of Detroit, in the county of Wayne and State of Michigan, have invented an Improvement in Steam-Boiler Furnaces, of which the following is a specification:
This invention has for its object to so construct a boiler-furnace that the refuse, screenings, and slack of anthracite may be consumed therein for generating steam at a much less cost than it can be done with the more expensive qualities of fuel; and to this end it consists in forcing a blast of air into a tight ash-pit, and at the same time turning in a portion of the exhaust steam from the engine to loosen up and separate the fuel on a perforated plate-grate, allowing the air-blast from the ash-pit to pass up through the incandescent fuel to supply the necessary oxygen to produce combustion. A large portion of the gases, however, are not ignited or consumed in the space in front of the bridge-wall, but pass behind it, where a portion of the air-blast (supplied by a fan) is mingled with them, and preferably a further supply of exhaust steam, which air and steam, mingling with the gases, supply thereto oxygen and hydrogen to produce perfect combustion.
Figure 1 is a perspective view of a boiler and arch, showing the external arrangement of the fan, blastpipes, and exhauststeam pipes. Fig. 2 is a longitudinal vertical section at mm. Fig. 3 is a horizontal section at 3 y.
In the drawing, A represents the arch, in which is set an ordinary flue or tubular boiler, B, provided with mud-pipe a, mud-drum b, smoke box and flue c, in the usual manner. 61 d are the fire-doors, and d the ash-pit door, which should fit air-tight, and be adapted to resist some little internal pressure. 0 is the bridge-wall, and 1) is a grate, formed of one or more plates, and drilled with numerous apertures, which may be about three-eighths of an inch in diameter. E is a blast-fan or pressure-blower, having a branched blast-pipe, 00',
or the whole of the exhaust steam of the engine, the former delivering its volume to the ash pit, and the latter to the combustionchamber. They are, respectively, provided with valves 9 g.
In practice, it is found that the entire exhaust steam of the engine is not required to produce perfect combustion, in which case the unused portion may be discharged in another direction. G is a pipe leading through the bridge-wall, and is provided with a valve, 71., regulated from the outside of the arch. d is a door at the side of the arch, through which the ashes are renioved from the combustionchamber. d is a door at the back end of the arch for a like purpose.
The apparatus is shown in connection with a stationary boiler, used for generating steam for a non-condensing engine; but it is equally adapted to marine boilers and condensing-engines, although in this latter case the influx of exhaust steam is substituted by the influx of live steam in intermittent puffs or blasts through proper mechanism actuating the.
valves for that purpose.
I am aware that steam and air have been injected into boiler-furnaces to promote combustion; but the present invention differs in this, that the intermittent blasts of exhaust steam under the grates, and in a tight ash-pit, raise and break up the agglomerated particles of coal on the grate, allowing the air blown into and through the mass of fuel, Where it mingles with the gases, and furnishes the necessary oxygen to secure combustion; but, as hereinbefore stated, the combustion is not complete, although it is as perfect as can be secured with lump coal in the ordinary way of firing; and to promote combustion of the gases, I introduce a second supply of air behind the bridge-wall, where, mingling with the gases, it supplies the oxygen to promote the combustion of the unconsumed gases passing over the bridge-wall; but to make the combustion perfect and complete, I introduce a second steam-blast, as described, which fills the combustion-chamber with asheet of white flame, giving off no smoke after steam is up and the engine is in motion; but a trifling amount of ashes falls through the grate, nearly all passing over the bridge-wall, and is deposited in the combustionchamber, whence it is removed through the doors d and d S0 few clinker-s are made that the grate needs cleaning but once a day.
After a fresh supply of fuel on the grate is well ignited, and most of the gases driven off, the pressure in the ash-pit can, with advantage, be decreased by partially opening the valve h in the pipe G through the bridgewall increasing the draft thereby in the combustion-chainber.
WVhat I claim as my invention, and desire to secure by Letters Patent, is-- In a steam-boiler furnace, the combination of a perforated grate, a tight ash-pit, a steam- HENRY E. CHAMPION.
Witnesses:
H. S. SPRAGUE, VVM. P. SPALDING.
Publications (1)
Publication Number | Publication Date |
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US159902A true US159902A (en) | 1875-02-16 |
Family
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US159902D Expired - Lifetime US159902A (en) | Improvement in steam-boiler furnaces |
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US (1) | US159902A (en) |
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- US US159902D patent/US159902A/en not_active Expired - Lifetime
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