US984431A - Process for the transmission of heat by means of superheated steam. - Google Patents

Process for the transmission of heat by means of superheated steam. Download PDF

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US984431A
US984431A US58393610A US1910583936A US984431A US 984431 A US984431 A US 984431A US 58393610 A US58393610 A US 58393610A US 1910583936 A US1910583936 A US 1910583936A US 984431 A US984431 A US 984431A
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steam
heat
super
transmission
heater
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Friedrich Jensen
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours

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  • This invention relates to a process for the transmission of heat by means of superheated steam.
  • the process is chiefly intended to be used where it is desired to obtain a high temperature of as great uniformity as possible, for instance in furnaces of all kinds, such as roasting furnaces, baking ovens, etc.
  • the inventor has found by experiments that steam could be heated to about 550 C. without burning through the pipes if it is caused to pass through the superheating coils with the highest possible velocity. He has further found that the heat contained in the said steam, can be given off in heating pipes of small length so as to bring the temperature down to about 200 C. and less.
  • Super-heated steam can he therefore successfully used for furnaces and ovens of all kinds only by using steam of very high pressure and by passing the same through the pipes with the highest possible velocity, and only on condition that there is an oppor tunity for using such steam as driving power after it has been used as heat carrying medium.
  • the fall of pressure in the steam between the boiler and the engine can be limited. to a small value by suitably calculating the cross-section of the superheater pipes and of the heating pipes.
  • Saturated high pressure steam generated in the steam boiler a passes through apipe Z) into the pipes c of a superheater and is conveycd through a pipe (Z into the heating pipes of the baking oven 6.
  • the heating pipes (Z connect with a return pipe f which conveys the steam into another section 9 of the super-heater, so that it is again superheated, and it then passes through a pipe it into another series of heating pipes 2' of the baking oven 6.
  • the pipe 2' is connected to a. pipe is which conveys the superheated high pressure steam into a steam engine m. After the steam has done work in the latter, it leaves the engine at n and is allowed to escape into the atmosphere or is utilized in any desired manner for heating, feed water heating and the like.
  • the process consists, therefore, in utilizing steam, when next to a furnace there is point of consumption (steam engine) requiring large quantities of high pressure steam, as the heating means for a baking oven, the said steam. before it is supplied to the engine, being heated once or several times by a superheatcr where it is heated to 550, the said supcrheatcr being protected from burning through owing to the quick absorption of heat due to the high velocity of the steam, whereupon the said steam is guided through the heating pipes of the furnace.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

P. JENSEN. PRQGESS FOR THE TRANSMISSION OF HEAT BY MBANB 0F SUPERHEATED STEAM. APPL'IOATIOH FILED SEPT.26,1910.
984,431 Patented Feb. 14, 1911.
THE NORRI5 PETERS CD., WASHV'NGTON, D. C.
UNITED STATES PATENT OFFICE FRIEDRICH JENSEN, OF KIEL-GAARDEN, GERMANY.
PROCESS FOR THE TRANSMISSION OF HEAT BY MEANS OF SUPERI-IEATED STEAM.
Specification of Letters Patent.
Application filed September 26, 1910.
Patented Feb. 14, 1911.
Serial No. 583,936.
T 0 all whom it may concern:
Be it known that I, FRIEDRICH JENSEN, manufacturer, a subject of the German Emperor, and resident of Kiel-Gaarden, Prussia Germany, (whose post-office address is Bleshmannsdamm 5,) have invented a new and useful Process for the Transmission of Heat by Means of superheated Steam, of which the following is a specification.
This invention relates to a process for the transmission of heat by means of superheated steam.
The process is chiefly intended to be used where it is desired to obtain a high temperature of as great uniformity as possible, for instance in furnaces of all kinds, such as roasting furnaces, baking ovens, etc.
It has been already attempted to use hot steam of small pressure as a source of h at for heating and baking purposes, but unsuccessfully. This want of success seems to be due to the fact that it was impossible to superheat the steam to a great extent, as it was conveyed through the superheater and the place to be heated with such a small velocity that the pipes were burned through.
The inventor has found by experiments that steam could be heated to about 550 C. without burning through the pipes if it is caused to pass through the superheating coils with the highest possible velocity. He has further found that the heat contained in the said steam, can be given off in heating pipes of small length so as to bring the temperature down to about 200 C. and less. Super-heated steam can he therefore successfully used for furnaces and ovens of all kinds only by using steam of very high pressure and by passing the same through the pipes with the highest possible velocity, and only on condition that there is an oppor tunity for using such steam as driving power after it has been used as heat carrying medium. The fall of pressure in the steam between the boiler and the engine can be limited. to a small value by suitably calculating the cross-section of the superheater pipes and of the heating pipes.
An installation for carrying out the process accordlng to the present invention as applied to baking ovens, is diagrammat-ically shown in the accompanying drawings.
Saturated high pressure steam generated in the steam boiler a passes through apipe Z) into the pipes c of a superheater and is conveycd through a pipe (Z into the heating pipes of the baking oven 6. The heating pipes (Z connect with a return pipe f which conveys the steam into another section 9 of the super-heater, so that it is again superheated, and it then passes through a pipe it into another series of heating pipes 2' of the baking oven 6. The pipe 2' is connected to a. pipe is which conveys the superheated high pressure steam into a steam engine m. After the steam has done work in the latter, it leaves the engine at n and is allowed to escape into the atmosphere or is utilized in any desired manner for heating, feed water heating and the like.
The process consists, therefore, in utilizing steam, when next to a furnace there is point of consumption (steam engine) requiring large quantities of high pressure steam, as the heating means for a baking oven, the said steam. before it is supplied to the engine, being heated once or several times by a superheatcr where it is heated to 550, the said supcrheatcr being protected from burning through owing to the quick absorption of heat due to the high velocity of the steam, whereupon the said steam is guided through the heating pipes of the furnace.
Claims:
1. The combination with a steam gcnerator; of a super-heater, a pipe connecting the steam generator with the super-heater, an oven, a pipe connecting thesuper-hcater with the oven, return pipes connecting the oven with the super-heater and the superhcater with the oven, an engine, and a pipe connecting the engine with the super-heater return pipe.
2. The combination with a steam generator; of a super-heater for "aising the temperature of the steam generated to approximately 450 C. or over, a pipe connecting the steam generator with the super-heater, an even, a pipe connecting the super-heater with the oven returlnpipes (rennet-ting the 5 presence (If two witnesses, this 10th they of men with the super-heater and the super- September 191.0.
110111 with the ()VC'IL 1n en ine. 1nd *1 )i )e v Y 1 r. r a f 1 l FRIEDIHCII Jmslon. connecting the engine \\'|th the super-heater return pipe. \Vitnessesz In testimony, that 1 (1.1211111 the foregoing Jwnns 116mm,
BRUNO Gosm'.
as ln invention 1 have si 'ned 111 name 111
US58393610A 1910-09-26 1910-09-26 Process for the transmission of heat by means of superheated steam. Expired - Lifetime US984431A (en)

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