US1937059A - Water heater or boiler - Google Patents

Water heater or boiler Download PDF

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Publication number
US1937059A
US1937059A US564320A US56432031A US1937059A US 1937059 A US1937059 A US 1937059A US 564320 A US564320 A US 564320A US 56432031 A US56432031 A US 56432031A US 1937059 A US1937059 A US 1937059A
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Prior art keywords
boiler
inner shell
shell
water
water heater
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Expired - Lifetime
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US564320A
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Fountain Howard John
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/02Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1884Hot gas heating tube boilers with one or more heating tubes

Definitions

  • This invention relates to water heaters or boilers adapted to be heated by exhaust gases from internal combustion engines, and more particularly to water heaters or boilers of the type com- 5 prising an outer shell and an inner shell forming between them the water space of the boiler, a plurality of thimbles or cross tubes extending from said water space radially into or across the space within the inner shell, and a tubular bafile partitigning the space within the inner shell into two gas passes, so as to provide for the flow of the exhaust gases from the engine either first across the thimbles or cross tubes and thence through the tubular baffle or vice versa.
  • the invention has for its object to provide an improved construction of water heater or boiler of this type permitting the utilization either separately or together of the heat of exhaust gases of combustion or of steam and of heat generated electrically.
  • the improved boiler is thus well adapted for use where Diesel engines or like engines are installed and where electric current in excess of requirements is on occasions available from electrical accessories, as for instance in certain types of locomotives and in tramp and other steamships.
  • a plurality of electric immersion heaters adapted to be supplied with current from dynamos or other sources of heating current.
  • the outer and inner shells are secured together at the upper end only so as to permit expansion of one relatively to the other with the consequence that the boiler can be run dry and used for instance as a silencer for exhaust gases without detriment.
  • A is the outer shell of the boiler from which is spaced the inner shell B which is fitted with a plurality of cross tubes or thimble tubes B in the usual manner.
  • C denotes the inlet for the exhaust gases and D a central tubular bafile disposed axially within the inner shell and ensuring the flow of the gases in the direction indicated by the arrows from the exhaust gas inlet C to the exhaust gas outlet F.
  • the bottom of the inner shell B, which shell forms with the outer shell the water space of the boiler, is spaced from the bottom of the outer shell and in the intervening space are disposed a plurality of electric immersion heaters G, suitably in spaced rows,
  • H denotes the usual circulation bafile provided in such boilers.
  • the boiler since the inner shell is suspended within the outer shell, one shell can expand freely relatively to the other. Consequently, the boiler may be used with safety in dry state as a silencer for exhaust gases.
  • cross tubes will extend around the central bafile D.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (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

NOV. 28, 1933. JJFOUNTAlN 1,937,059
WATER HEATER OR BOILER Filed Sept. 22. 19:51
Patented Nov. 28, 1933 UNITED STATES PATENT OFFICE Application September 22, 1931, Serial No. 564,320, and in Great Britain September 23,
1 Claim.
This invention relates to water heaters or boilers adapted to be heated by exhaust gases from internal combustion engines, and more particularly to water heaters or boilers of the type com- 5 prising an outer shell and an inner shell forming between them the water space of the boiler, a plurality of thimbles or cross tubes extending from said water space radially into or across the space within the inner shell, and a tubular bafile partitigning the space within the inner shell into two gas passes, so as to provide for the flow of the exhaust gases from the engine either first across the thimbles or cross tubes and thence through the tubular baffle or vice versa.
The invention has for its object to provide an improved construction of water heater or boiler of this type permitting the utilization either separately or together of the heat of exhaust gases of combustion or of steam and of heat generated electrically. The improved boiler is thus well adapted for use where Diesel engines or like engines are installed and where electric current in excess of requirements is on occasions available from electrical accessories, as for instance in certain types of locomotives and in tramp and other steamships.
In accordance with the invention within the water space formed between the bottom of the I inner shell and the bottom of the outer shell there are disposed a plurality of electric immersion heaters adapted to be supplied with current from dynamos or other sources of heating current. The outer and inner shells are secured together at the upper end only so as to permit expansion of one relatively to the other with the consequence that the boiler can be run dry and used for instance as a silencer for exhaust gases without detriment.
One embodiment of the invention is illustrated in the accompanying drawing in vertical section. Referring to the drawing, A is the outer shell of the boiler from which is spaced the inner shell B which is fitted with a plurality of cross tubes or thimble tubes B in the usual manner. In the embodiment shown, C denotes the inlet for the exhaust gases and D a central tubular bafile disposed axially within the inner shell and ensuring the flow of the gases in the direction indicated by the arrows from the exhaust gas inlet C to the exhaust gas outlet F. The bottom of the inner shell B, which shell forms with the outer shell the water space of the boiler, is spaced from the bottom of the outer shell and in the intervening space are disposed a plurality of electric immersion heaters G, suitably in spaced rows,
which may be used either alone or in conjunction with the exhaust combustion gases or waste steam to generate steam in the boiler. The exhaust gases or waste steam may also be used alone for this purpose. H denotes the usual circulation bafile provided in such boilers.
It will be understood that, since the inner shell is suspended within the outer shell, one shell can expand freely relatively to the other. Consequently, the boiler may be used with safety in dry state as a silencer for exhaust gases.
Where in lieu of thimbles cross tubes are provided such cross tubes will extend around the central bafile D.
I claim:
A water heater or boiler of the type referred to, and permitting the utilization of the heat of exhaust gases of combustion, of the heat of steam, and of heat generated electrically, simultaneously or separately, thus providing a combined flash boiler and electrical-boiler, and adapted for use also as a silencer, comprising in combination an outer shell, an inner shell suspended within said outer shell in such manner as to be expansible freely of the other shell and spaced therefrom at the sides and bottom to afford a water space which when the boiler is used as a silencer may be empty of water, the spacing from the bottom being great in relation to the spacing from the sides so as to provide a large water capacity at the bottom, tubular means extending from said water space into the space within said inner shell, a tubular baiile disposed within said inner shell and forming with said inner shell two gas passes, and a plurality of electric immersion heaters disposed in said water space of large capacity remote both from the bottom of the inner shell and from the bottom of the outer shell, the annular space between the inner and outer shells constituting a flash boiler, and the water space between the bottom of the inner shell and the bottom of the outer shell constituting an electrical boiler with a water capacity, and the surfaces being wettable to any desired extent, whereby to obtain a fine regulation of the rate of evaporation.
HOWARD JOHN FOUNTAIN.
US564320A 1930-09-23 1931-09-22 Water heater or boiler Expired - Lifetime US1937059A (en)

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GB1937059X 1930-09-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434016A (en) * 1945-12-22 1948-01-06 Blaw Knox Co Immersion heater for vapor heating jackets or the like
US4532413A (en) * 1982-05-04 1985-07-30 Yhtyneet Paperitehtaat Oy Steam generator heated by combination of electric heat and condensation of contaminated process steam
US5190025A (en) * 1991-04-01 1993-03-02 Chen Ning S Motor vehicle drinking water warming and heating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434016A (en) * 1945-12-22 1948-01-06 Blaw Knox Co Immersion heater for vapor heating jackets or the like
US4532413A (en) * 1982-05-04 1985-07-30 Yhtyneet Paperitehtaat Oy Steam generator heated by combination of electric heat and condensation of contaminated process steam
US5190025A (en) * 1991-04-01 1993-03-02 Chen Ning S Motor vehicle drinking water warming and heating device

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