US26779A - Construction of steam-boilers - Google Patents
Construction of steam-boilers Download PDFInfo
- Publication number
- US26779A US26779A US26779DA US26779A US 26779 A US26779 A US 26779A US 26779D A US26779D A US 26779DA US 26779 A US26779 A US 26779A
- Authority
- US
- United States
- Prior art keywords
- tubes
- boilers
- steam
- construction
- boiler
- 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
- 238000010276 construction Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 230000003137 locomotive Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 230000002542 deteriorative Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B9/00—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
- F22B9/02—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body the boiler body being disposed upright, e.g. above the combustion chamber
- F22B9/04—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body the boiler body being disposed upright, e.g. above the combustion chamber the fire tubes being in upright arrangement
Definitions
- My invention relates to a mode of render ing the vertical tubes of tubular steam boilers more durable than heretofore. It has been found by experience that the lower end of the vertical water tubes of such boilers are in a comparatively short time destroyed, and in a much shorter time than the upper end.
- my said invention consists in making the said tubes at and near their lower end of greater thickness, than at and near the upper end.
- a represents the flue space of a boiler inV which are arranged the vertical water tubes which connect the upper and lower water spaces, well known as the Montgomery boiler.
- the bore of these tubes is of equal diameter from end to end, as represented on an enlarged scale at Fig. 2 of the drawings, and the outer surface is also of equal diameter from the upper end to within a few inches of the lower end where the diameter is increased as at 0 to increase the thickness of the metal for the purpose above stated. It will be obvious that the same result may be attained by making the tube of an equal external diameter from end to end, and the inner diameter or bore of unequal diameter so as to obtain the greater thickness required at the lower end; but I prefer the mode first specified.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
UNITED STATES'PATENT OFFICE.`
JAS. MONTGOMERY, OF BALTIMORE, MARYLAND.
CONSTRUCTION 0F STEAM-BOILERS.
Specification of Letters Patent No. 26,779, dated January 10, 1860.
To all whom it may concern:
Beit known that I, JAMES MONTGOMERY, of Baltimore, in the county of Baltimore and State of Maryland, havel invented a certain new and useful Improvement in Steam- Boilers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the ac companying drawings, making part of this specification, in which- Figure 1 is a section of the fiue chamber of a boiler; and Fig. 2, a longitudinal section of one of the tubes on an enlarged scale.
The same letters indicate like parts in both figures.
My invention relates to a mode of render ing the vertical tubes of tubular steam boilers more durable than heretofore. It has been found by experience that the lower end of the vertical water tubes of such boilers are in a comparatively short time destroyed, and in a much shorter time than the upper end. This, it is believed, is due to the deteriorating influence of salts and other substances which lodge around the outside of the tubes near their lower end; but whether such deterioration be due to this or any other cause, I have found by eX- periment the diiiiculty is in a great measure obviated by making the tubes of greater thickness; but this remedy begets other and even greater difliculties, as it greatly increases the weight of the boiler, reduces the capacity of the tubes for economical evaporation, and renders them more liable to be burned out. But by my invention I am enabled to render the tubes more durable than heretofore while at the same time they will transmit the heat to the water passing through them as readily, and evaporate the water as economically, as heretofore.
To this end my said invention consists in making the said tubes at and near their lower end of greater thickness, than at and near the upper end. In this way that p0rtion of the length of the tubes which is but slightly acted upon by the heat, and acted upon injuriously by the matter which lodges around them, is effectually protected by the increased thickness of the metal, while that portion of their length which is efficient in the generation of steam can be made as thm as safety against pressure will permit, to be effective in the transmission of heat to the water passing through them.
In the accompanying drawings a represents the flue space of a boiler inV which are arranged the vertical water tubes which connect the upper and lower water spaces, well known as the Montgomery boiler. The bore of these tubes is of equal diameter from end to end, as represented on an enlarged scale at Fig. 2 of the drawings, and the outer surface is also of equal diameter from the upper end to within a few inches of the lower end where the diameter is increased as at 0 to increase the thickness of the metal for the purpose above stated. It will be obvious that the same result may be attained by making the tube of an equal external diameter from end to end, and the inner diameter or bore of unequal diameter so as to obtain the greater thickness required at the lower end; but I prefer the mode first specified.
I wish it to be understood that I do not claim making tubes with one of their ends thicker than the other-that being a device well known in connection with what is called the locomotive boiler, the tubes of which are termed iue tubes and are at their ends next to the fire-box made thicker than at their other ends for the reasons following: First, from the want of proper circulation in the boiler, the great heat necessarily applied to them at their fire-box ends drives the water from around these ends and would cause them to be rapidly burned out were they not made thicker than the smoke-box ends. Second, by reason of the great draft, most of the sparks and cinders are drawn up into the tubes and by constant friction against their interior surfaces would, in consequence of the greater heat of the metal next to the fire-box, soon cut through them there, were they not made thicker at their fire-box ends than at their other endsas -above described. But, as already stated, my
verse of that employed in the locomotive that sought to be accomplished in said locomotive boiler.
Having thus described my invention, what I claim therein and desire to secure by Letters Patent, is
Making vertical or nearly Vertical Water tubes for steam boilers or other purposes, with their lower ends to Which the heat from the furnace is applied at its lowest temperature,v thicker for any desired portion of their length than their upper ends to which the heat is applied at its greatest intensity, in the manner and for the purposes substantially as aboveset forth.
JAMES MQNTGOMERY.
Witnesses:
VM. H. BISHOP, VM. C. BROWN.Y
Publications (1)
Publication Number | Publication Date |
---|---|
US26779A true US26779A (en) | 1860-01-10 |
Family
ID=2096447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US26779D Expired - Lifetime US26779A (en) | Construction of steam-boilers |
Country Status (1)
Country | Link |
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US (1) | US26779A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4593872A (en) * | 1983-05-25 | 1986-06-10 | Svensson Sven Eric A | Anchoring device for posts for fences, guard-rails, tents etc. |
US4629078A (en) * | 1981-10-30 | 1986-12-16 | Protoned B.V. | Clothes display rack |
US4791878A (en) * | 1987-05-29 | 1988-12-20 | C. E. Toland & Son | Flagpole assembly |
US6099203A (en) * | 1998-01-27 | 2000-08-08 | Landes; Scott D. | Marker post having a webbed triangular cross section |
US20070204094A1 (en) * | 2006-02-28 | 2007-08-30 | Harding W R | A method and apparatus for transmitting data in an integrated circuit |
-
0
- US US26779D patent/US26779A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4629078A (en) * | 1981-10-30 | 1986-12-16 | Protoned B.V. | Clothes display rack |
US4593872A (en) * | 1983-05-25 | 1986-06-10 | Svensson Sven Eric A | Anchoring device for posts for fences, guard-rails, tents etc. |
US4791878A (en) * | 1987-05-29 | 1988-12-20 | C. E. Toland & Son | Flagpole assembly |
US6099203A (en) * | 1998-01-27 | 2000-08-08 | Landes; Scott D. | Marker post having a webbed triangular cross section |
US20070204094A1 (en) * | 2006-02-28 | 2007-08-30 | Harding W R | A method and apparatus for transmitting data in an integrated circuit |
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