US188914A - Improvement in devices for heating and feeding air to furnaces - Google Patents
Improvement in devices for heating and feeding air to furnaces Download PDFInfo
- Publication number
- US188914A US188914A US188914DA US188914A US 188914 A US188914 A US 188914A US 188914D A US188914D A US 188914DA US 188914 A US188914 A US 188914A
- Authority
- US
- United States
- Prior art keywords
- air
- furnaces
- heating
- devices
- improvement
- 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
- 238000010438 heat treatment Methods 0.000 title description 6
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 206010022000 Influenza Diseases 0.000 description 4
- 108060008444 TPR Proteins 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B5/00—Combustion apparatus with arrangements for burning uncombusted material from primary combustion
Definitions
- a perforated grate is used, and in an ash-pit that may be tightly closed, as but little air is required to support the preliminary combustion of the fuel.
- Figure 1 is a perspective view of a boiler set in the arch, portions of which are broken out to show the passages.
- Fig. 2 is a longitudinal vertical section at mm.
- Fig. 3 is-a cross-section at y y.
- A represents the arch, in which the boiler B is set.
- () is the fire-front, provided with fire and ash-pit doors, adapted to be tightly closed, the latter especially,
- the bridge-wall E having a hollow wall or flue, at, extending from end to end, and communicating at the top with the interior of the furnace through perforations, or through a slot, delivering the air in jets or in a thin sheet.
- the rear end wall of the arch is double, forming a chamber, F, into which atmospheric air is admitted in proper volume through a door or register, b, at the bottom. From the top of the chamber F, at each side, a flue, F, is built into the side wall, turning down and extending to the front on a plane above the grate.
- a perforated plate, G is set into an opening in the flue, so as to deliver air from the flue into the side of the furnace in jets, ready to mingle with the gases as they are evolved from the fuel.
- the flue a of the bridge-wall at each end intersects and communicates with the side lines F.
- the natural draft of the furnace causes air to be drawn into the chamber F, where it is highly heated by the flames as they impinge upon its front wall, and then pass along through the side lines, where they are heated to a still higher temperature, thence in jets into the furnace, at a temperature considerably above that of the gases, which are ignited, upon their admixture with theoxygen.
- a portion .of the current of heated air is drawn through thebridge-wall into the furnace, and ignites any unconsumed gases pass ing over the bridge-wall, thereby insuring a more perfect combustion than it has hitherto been possible to obtain.
- grate-bars may be used, if preferred, but for burning slack or refuse coal, and similar fuels, the plate-grate is the best adapted.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Description
J'. JENKS.
DEVICES FOR HEATING AND FEEDING AIR T0 FURNACES. No.188,914. Patented March 27,1877.
HHH
m fiu'mtor:
",FETERS. FHOTO-LITNOGRAPMEH, WASHINGTON 0 C UNITED STATES JAMES JEN KS, OF DETROIT, MICHIGAN, ASSIG-NOR OF ONE-HALF HIS RIGHT PATENT OFFICE.
TOGEORGE A. JENKS, OF SAME PLACE.
IMPROVEMENT IN DEVICES FOR HEATING AND FEEDING AIR T0 FURNACES.
Specification forming part of Letters Patent No. 188,914, dated March 27, 1877; application filed I October 31, 1876.
f coals, are evolved in large volume, requiring the admixture of a corresponding volume of oxygen to secure their combustion.
It is essential that the air-supply be admitted to thecombustion-chamber at an elevated temperature, and herein is the essential feature of my invention, which consists in the combination of the rear arch, constructed hollow, as shown, and having an atmospheric air-aperture at the bottom thereof, and the curved flues, built in the sides of the furnace, with the perforated plates in the sides of the combustion-chamber above the grate, and the perforated bridge-wall, whereby the air is heated and fed to thecombustion-chamber, as more fully hereinafter explained.
Preferably a perforated grate is used, and in an ash-pit that may be tightly closed, as but little air is required to support the preliminary combustion of the fuel.
Figure 1 is a perspective view of a boiler set in the arch, portions of which are broken out to show the passages. Fig. 2 is a longitudinal vertical section at mm. Fig. 3 is-a cross-section at y y.
In the drawing, A represents the arch, in which the boiler B is set. ()is the fire-front, provided with fire and ash-pit doors, adapted to be tightly closed, the latter especially,
as it is not necessary to admit much air into the ash-pit to support the preliminary combustion of the fuel lying on the perforated plate-grate D, behind which is located the bridge-wall E, having a hollow wall or flue, at, extending from end to end, and communicating at the top with the interior of the furnace through perforations, or through a slot, delivering the air in jets or in a thin sheet.
The rear end wall of the arch is double, forming a chamber, F, into which atmospheric air is admitted in proper volume through a door or register, b, at the bottom. From the top of the chamber F, at each side, a flue, F, is built into the side wall, turning down and extending to the front on a plane above the grate.
Opposite the furnace, and just above the grate, a perforated plate, G, is set into an opening in the flue, so as to deliver air from the flue into the side of the furnace in jets, ready to mingle with the gases as they are evolved from the fuel.
The flue a of the bridge-wall at each end intersects and communicates with the side lines F.
The natural draft of the furnace causes air to be drawn into the chamber F, where it is highly heated by the flames as they impinge upon its front wall, and then pass along through the side lines, where they are heated to a still higher temperature, thence in jets into the furnace, at a temperature considerably above that of the gases, which are ignited, upon their admixture with theoxygen.
A portion .of the current of heated air is drawn through thebridge-wall into the furnace, and ignites any unconsumed gases pass ing over the bridge-wall, thereby insuring a more perfect combustion than it has hitherto been possible to obtain.
There being but little air admitted to the ash-pit to pass up through the grate, the latter is liable to burn, to avoid which a small jet of steam may be blown into the ash-pit.
the moisture of which steam Will protect the grates.
Ordinary grate-bars may be used, if preferred, but for burning slack or refuse coal, and similar fuels, the plate-grate is the best adapted.
What I claim as my invention is In a steam boiler furnace, the rear hollow arch A, atmospheric air-aperture b, and curved side flues F, in combination with the side perforated plates Gr, and perforated bridge-wall a, all arranged as shown, whereby air is heated and fed to the combustionchamber, substantially as described.
JAMES J ENKS.
Witnesses:
H. F. EBERTS, Wm. P. SPALDING-
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US188914A true US188914A (en) | 1877-03-27 |
Family
ID=2258321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US188914D Expired - Lifetime US188914A (en) | Improvement in devices for heating and feeding air to furnaces |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US188914A (en) |
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- US US188914D patent/US188914A/en not_active Expired - Lifetime
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