US778886A - Steam-generator. - Google Patents

Steam-generator. Download PDF

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US778886A
US778886A US19879304A US1904198793A US778886A US 778886 A US778886 A US 778886A US 19879304 A US19879304 A US 19879304A US 1904198793 A US1904198793 A US 1904198793A US 778886 A US778886 A US 778886A
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reservoir
steam
water
tubes
furnace
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US19879304A
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Louis John Henry Pagels
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/04Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
    • B01J8/0496Heating or cooling the reactor

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  • This invention relates to apparatus for producing steam, and has particular reference to their adaptation for heating purposes in flatbuildings, office-buildings, and the like; and the object of the invention is to effect a great saving in fuel, shorten the time usually required to get up a good head of steam, reduce the cost of construction, simplify the arrangement of parts, facilitate repairs and easy accessibility to the difierent parts of the apparatus, &:c., as will hereinafter appear in the detailed description.
  • the invention consists, generally speaking, in a series of water-tubes, a supply-reservoir therefor, in combination with a furnace, and means for substantially enveloping said tubes with flame and gases of combustion of said furnace.
  • the invention further consists in a novel arrangement of parts and the details of construction hereinafter more fully described, illustrated in the drawings, and incorporated in the claim.
  • Figure 1 is a sectional View taken on the line XX of Fig. 2.
  • Fig. 2 is a side elevation, partly in section, of an apparatus embodying my invention.
  • Fig. 3 is a view illustrating a transverse section through a modified form of my device.
  • 2 represents an ordinary boiler-furnace with a draft-door 3 and firedoor 4, which are shown connected with a common form of automatic arrangement for regulating the heat of the furnace by the steam-pressure and comprising achain 5, pass-,
  • a series of water-pipes 12 Supported in the front and rear walls and 11, respectively, is a series of water-pipes 12, arranged in zigzag order, as shown in Fig. 1, to better expose them to the flames and gases of combustion.
  • a fire-brick lining or furnace-top 13 Over the top layer of pipes composing the series is a fire-brick lining or furnace-top 13, which terminates a suit-able distance from the rear wall 11 to provide a flue-opening 14.
  • a supply-reservoir 15 also built into the brickwork.
  • the rear end of this reservoir or boiler 15 is shown slightly lower than the forward end, the object of which is to facilitate its drainage and to provide a steam space of greatest depth forward above the water-line 16.
  • the rear end of the reservoir 15 is provided with an inlet water-supply pipe 17, connected with any suitable source, and an outlet-pipe 18, connected with the series of pipes 12 and provided with a header 19.
  • the forward end of the reservoir is provided with a similar steam-inlet pipe and a header connected with the opposite end of the series of pipes 12.
  • a pipe 22 leads from the steamchamber of the reservoir to the radiators of the building or whatever the steam-consuming device is supplied.
  • 27 is the usual water-gage and its pipe communicating with the interior of the reservoir 15.
  • the water-tubes 12 are each completely enveloped by the flames and hot gases of combustion and their exposure increased materially by the staggered or zigzag arrangement of the different layers overlying each other in the series. Furthermore, the Watertubes being within the furnace itself are exposed to a far greater intensity of heat than if they merely formed flues beginning at one end of the furnace. The volume of hot gases and flames surrounding each flue is practically that of the furnace itself.
  • a double arrangement is shown wherein two reservoirs, a double set of tubes, and steam and water inlet and discharge pipes common to both reservoirs and to the double system of pipes are shown.
  • the inlet-pipe 17 for the water-supply is shown by dotted lines as extending to the front part of the boiler or reservoir, whereby the cold water is heated by the hot water surrounding said pipe within the reservoir.
  • the reservoir 15 is filled with water in the morning up to the water-line 16 and the valve 17 closed.
  • the discharge end of the pipe 20 is then above the water-line and-the tubes 12 will be filled with water.
  • the reservoir is preferably made of sufficient size to hold a days supply of water.
  • steam will be very quickly generated, which will issue into the steam-space above the water-line in the reservoir and thence through the pipe 22 as fast as it is permitted to escape by the users.
  • the reservoir may be recharged through the inlet-pipe 17, the steam-pressure then not being sufficient to prevent a gravity-flow into the boiler. It is of course obvious that, if desired, any common form of injector may also be used and the boiler charged at any time regardless of the amount of steam-pressure within the reservoir.

Description

film/778,886. PATENTED JAN. 3. 1905.
L. J. H. PAGELS.
STEAM GENERATOR.
APPLICATION FILED MAR. 18, 1904.
2 SHEETS-SHEET Q.
Patented January 3, 1905.
PATENT Orricn.
LOUIS JOHN HENRY PAGELS, OF CHICAGO, ILLINOIS.
STEAM-GENERATOR.
SPECIFICATION forming part of Letters Patent No. 778,886, dated January 3, 1905.
Application filed March 18, 1904. Serial No. 198,793.
To all whom it may concern:
Be it known that I, LoUIs JOHN HENRY PAGELS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Steam-Generators, of which the following is a specification.
This invention relates to apparatus for producing steam, and has particular reference to their adaptation for heating purposes in flatbuildings, office-buildings, and the like; and the object of the invention is to effect a great saving in fuel, shorten the time usually required to get up a good head of steam, reduce the cost of construction, simplify the arrangement of parts, facilitate repairs and easy accessibility to the difierent parts of the apparatus, &:c., as will hereinafter appear in the detailed description.
The invention consists, generally speaking, in a series of water-tubes, a supply-reservoir therefor, in combination with a furnace, and means for substantially enveloping said tubes with flame and gases of combustion of said furnace.
The invention further consists in a novel arrangement of parts and the details of construction hereinafter more fully described, illustrated in the drawings, and incorporated in the claim.
In the drawings, Figure 1 is a sectional View taken on the line XX of Fig. 2. Fig. 2 is a side elevation, partly in section, of an apparatus embodying my invention. Fig. 3 is a view illustrating a transverse section through a modified form of my device.
In the drawings, 2 represents an ordinary boiler-furnace with a draft-door 3 and firedoor 4, which are shown connected with a common form of automatic arrangement for regulating the heat of the furnace by the steam-pressure and comprising achain 5, pass-,
ing over pulley 6, the lever 7, fulcrumed near pressure-piston 8, the weights 9, &c., all wellknown construction.
Supported in the front and rear walls and 11, respectively, is a series of water-pipes 12, arranged in zigzag order, as shown in Fig. 1, to better expose them to the flames and gases of combustion. Over the top layer of pipes composing the series is a fire-brick lining or furnace-top 13, which terminates a suit-able distance from the rear wall 11 to provide a flue-opening 14. Above the top of the lining or roof of fire-chamber 13 is a supply-reservoir 15, also built into the brickwork. The rear end of this reservoir or boiler 15 is shown slightly lower than the forward end, the object of which is to facilitate its drainage and to provide a steam space of greatest depth forward above the water-line 16. The rear end of the reservoir 15 is provided with an inlet water-supply pipe 17, connected with any suitable source, and an outlet-pipe 18, connected with the series of pipes 12 and provided with a header 19. The forward end of the reservoir is provided with a similar steam-inlet pipe and a header connected with the opposite end of the series of pipes 12. A pipe 22 leads from the steamchamber of the reservoir to the radiators of the building or whatever the steam-consuming device is supplied.
23 is the flue communicating with the firechamber through an arched passage 24, bridging the side Walls 25 and 26 of the furnace.
27 is the usual water-gage and its pipe communicating with the interior of the reservoir 15.
As will be observed from the foregoing de scription, the water-tubes 12 are each completely enveloped by the flames and hot gases of combustion and their exposure increased materially by the staggered or zigzag arrangement of the different layers overlying each other in the series. Furthermore, the Watertubes being within the furnace itself are exposed to a far greater intensity of heat than if they merely formed flues beginning at one end of the furnace. The volume of hot gases and flames surrounding each flue is practically that of the furnace itself.
In Fig. 3 a double arrangement is shown wherein two reservoirs, a double set of tubes, and steam and water inlet and discharge pipes common to both reservoirs and to the double system of pipes are shown. In Fig. 2 the inlet-pipe 17 for the water-supply is shown by dotted lines as extending to the front part of the boiler or reservoir, whereby the cold water is heated by the hot water surrounding said pipe within the reservoir.
In practical operation for heating purposes the reservoir 15 is filled with water in the morning up to the water-line 16 and the valve 17 closed. The discharge end of the pipe 20 is then above the water-line and-the tubes 12 will be filled with water. The reservoir is preferably made of sufficient size to hold a days supply of water. When the fireis started, steam will be very quickly generated, which will issue into the steam-space above the water-line in the reservoir and thence through the pipe 22 as fast as it is permitted to escape by the users. At night when the fire is permitted to get low, as is customary, the reservoir may be recharged through the inlet-pipe 17, the steam-pressure then not being sufficient to prevent a gravity-flow into the boiler. It is of course obvious that, if desired, any common form of injector may also be used and the boiler charged at any time regardless of the amount of steam-pressure within the reservoir.
It has been found by actual demonstration in practical use of my apparatus that steam may be generated with about half the fuel usually required for the same amount of steampressure obtained with the ordinary boilers, and with a corresponding saving of time required to generate the necessary amount of steam to make the rooms of a building comfortable during cold weather. The watertubes being below the water-reservoir cannot become dry so long as there is any water at all in the reservoir and do not, therefore, burn out in part, as where some of the tubes are left high and dry when the water gets low at times, as is almost inevitable in connection with ordinary boilers. Furthermore, the arrangement is a comparatively inexpensive one, as the tubes are completely exposed and can easily be replaced at any time without necessitating a new boiler, while the reservoir 15 is protected against the intensest heat by the lining 13. Viewing the apparatus as a boiler with its tubes exterior of its body it will be noted that about half the boiler-space is saved, permitting the use of a far less expensive boiler without any sacrifice of efficiency. Again, the difference in first cost and repairs between my series of pipes arranged as shown and secured within the boiler is so great as to be scarcely comparable, while the latter requires the highest skilled labor and the former, or my invention, can be assembled by any ordinary mechanic. This is exceedingly important in connection with boilers or steamgenerating apparatuses used for dwellings where the employment of skilled engineers is out of the question.
It is obvious that the embodiment of my invention may be modified in numerous ways without departing from the spirit thereof, and I therefore do not wish to'confine my invention to the specific construction herein shown and described.
Having thus described my invention, I claim as new and desireto secure by Letters Patent- In a steam-generator, the combination with a furnace, of a cylindrical reservoir and steamchamber having its ends embedded in and supported by the front and rear walls of said furnace, said reservoir being rearwardly inclined, several exposed horizontal series of connected water-tubes arranged immediately below said reservoir, said tubes having their joints supported in said walls, a horizontal partition between said tubes and reservoir providing a flue of gradually increasing capacity toward its forward end, a water-supply pipe between the lower end of said reservoir and the lower series of tubes, a steamsupply pipe between the upper series of tubes and the elevated end of said reservoir, and means for admitting water to and discharging steam from said reservoir.
In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses, this 14th day of March, 1904.
LOUIS JOHN HENRY PAGELS. Witnesses: 1
ROBERT BORGHART, EDWARD RICHARDSON.
US19879304A 1904-03-18 1904-03-18 Steam-generator. Expired - Lifetime US778886A (en)

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