US58239A - Improved method of promoting combustion in furnaces - Google Patents
Improved method of promoting combustion in furnaces Download PDFInfo
- Publication number
- US58239A US58239A US58239DA US58239A US 58239 A US58239 A US 58239A US 58239D A US58239D A US 58239DA US 58239 A US58239 A US 58239A
- Authority
- US
- United States
- Prior art keywords
- air
- furnaces
- improved method
- combustion
- chimney
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title description 16
- 230000001737 promoting Effects 0.000 title description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000003245 coal Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000000779 smoke Substances 0.000 description 8
- 239000002802 bituminous coal Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000003137 locomotive 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
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/16—Induction apparatus, e.g. steam jet, acting on combustion products beyond the fire
Definitions
- the object of this invention is to effect a rapid and at the same time an economical combustion of coal in steam-boiler and other furhaces; also, to effect the consumption ofsmoke and gas in the furnace in a more perfect manner than hitherto accomplished.
- the principle of my invent-ion consists in forcing air into a smoke -pipe or chimney above the furnace or heating-chamber at a velocity which is considerably greater than that which would be obtained by a natural draft, thus obtaining, not only the required velocity or force of air, but also obtaining air in such quantity as will, by its friction on the surrounding column of air in the chimney, induce an accelerated upward current, and thus draw into the furnace-chamber a sufficient supply of air to promote a free and' perfect combustion of the coal and smoke therein.
- Vfans or other suitable air-engines having pipes -leading from them into the chimneys and directed upward, for the purpose of promoting the combustion of fuel in furnaces by forcing coldair directly into the chimneys at points which are above the heating-surfaces, butgnear the base of the chimneys,. at a greater velocity than that which would result from natural draft, substantially asi described.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Description
CLARK FISHER, OF T RENTON, NEW JERSEY.
IMPROVED METHOD 0F PROMOTING COMBUSTION IN FURNACES.
Specification forming part of LettersPatent No. 58,239, dated September 25, 1866.
To all whom t may concern:
Beit known that I, CLARK FIsI-IEE, of Trenton, in the county of Mercer and State of N ew Jersey, have invented a new and Improved Method of Promoting the Combustion of Coal for Steam and other purposes; and I do hereby declare that the following is a full, clear and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which-- i Figure 1 is a vertical longitudinal section -through one form of steam-boiler and furnace having my invention applied. Fig. 2 is a transverse section through Fig. 1, taken in the vertical plane indicated by red lines x. Fig. 3 is a front elevation.
The object of this invention is to effect a rapid and at the same time an economical combustion of coal in steam-boiler and other furhaces; also, to effect the consumption ofsmoke and gas in the furnace in a more perfect manner than hitherto accomplished.
It consists in forcing upward one or more jets of cold air into the chimney or smokepipe of a furnace, by introducing the air under pressure into the chimney at a point which is above the healing-surface, and thus creating a partial vacuum in the iirechamber and `cause the air from the reroom to circulate through every part of said chamber, as will be hereinafter described.
To enable others skilled in the art to understand my invention, I will describe its construction and operation.
The principle of my invent-ion consists in forcing air into a smoke -pipe or chimney above the furnace or heating-chamber at a velocity which is considerably greater than that which would be obtained by a natural draft, thus obtaining, not only the required velocity or force of air, but also obtaining air in such quantity as will, by its friction on the surrounding column of air in the chimney, induce an accelerated upward current, and thus draw into the furnace-chamber a sufficient supply of air to promote a free and' perfect combustion of the coal and smoke therein.
'Io effect this object I employ a fan, A
which is inclosed within a case, and which receives a rapid rotar I motion. From the fancase a pipe or conduit, B, is carried upward and through the chimney or smoke-pipe C of the `furnace D, and its upper end terminates in a contracted nozzle, a, which is directed upward in or parallel with the axis of the chim ney, and which is located above the furnacechamber, so that the air shall not, by its cooling effect, carry off the heat below. This pipe B is contracted at its discharge end for the purpose of obtaining greater velocity of air, which, combined with quantity of air, produces the beneficial results above set forth.
By thus-forcin g air in jets into the chimney of a furnace the chimney will be kept at a comparatively low temperature above a certain point 5 and hence I secure safety from fire where chimneys or smoke-pipes pass up through the decks of vessels or through roofs of build l ings.
It is notonly found,by forcin gair under pressure into chimneys, that the combustion in the furnace is more complete, but it is also found that bituminous coal can be burned very suc- Y cessfully and economically, with little or no escape of smoke and gas.
I am aware that attempts have been made to promote combustion in furnaces by a contrivance which would draw the heated air out of the lower part of the chimney and force it in again at a point higher up, with a damper between. Smoke jacks or fans have also been placedwin chimneys and driven by engines.
I am also aware that steam has been directed into chimneys through nozzles, as in the case of locomotive and other engines; but none of these plans do I lay any claim to.
What Ido claim as new, and desire to secure by Letters Patent, is-
The employment of Vfans or other suitable air-engines, having pipes -leading from them into the chimneys and directed upward, for the purpose of promoting the combustion of fuel in furnaces by forcing coldair directly into the chimneys at points which are above the heating-surfaces, butgnear the base of the chimneys,. at a greater velocity than that which would result from natural draft, substantially asi described.
Witness my hand in matterof my application for a patent for an improved mode of promoting the combustion of coal for steam or other purposes.
CLARK FISHER.
Witnesses:
` T. W. LEAcH,
HENRY M. RICKETT, W. L. NIcoLL.
Publications (1)
Publication Number | Publication Date |
---|---|
US58239A true US58239A (en) | 1866-09-25 |
Family
ID=2127778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US58239D Expired - Lifetime US58239A (en) | Improved method of promoting combustion in furnaces |
Country Status (1)
Country | Link |
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US (1) | US58239A (en) |
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0
- US US58239D patent/US58239A/en not_active Expired - Lifetime
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