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US4389847A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for the rapid increase in output of a steam turbine plant

Assignee: BBC Brown Boveri AG Switzerland
•
Filing: 1980-09-30
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Granted: 1983-06-28
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Expires: 2000-09-30
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Abstract

Abstract A steam turbine plant capable of rapidly increasing its output in instances of sudden load jumps, by drawing the necessary process steam from a bleeding point of a turbine during normal operations, while, at the same time, filling a steam accumulator, or keeping full, by means of steam taken from a bleeding point of the high-pressure component of the turbine and/or by live steam. In order to boost the increase in output of the generator the drawing off of process steam from the turbine is interrupted and replaced by process steam from the steam accumulator, so that the condensing component of the turbine automatically receives more steam. Title of the Invention Method for the rapid increase in output of a steam turbine plant.

Inventors

  • 👤 Rolf Kehlhofer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 01:33
CPC Classifications
F; F01; F01K; F01K3/00; F01K3/06; Y; Y02; Y02E; Y02E20/00; Y02E20/14

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 129 words
Method for the rapid increase in output of a steam turbine plant using process steam, and in particular of a steam turbine plant connected with an electro-generator, comprising: drawing off, during normal operations, the necessary process steam from a bleeder of one turbine; simultaneously filling, or maintaining full, with steam from at least one drawing-off point of the high-pressure component of a turbine and/or with live steam, a steam accumulator; and, interrupting the drawing off of the process steam from the turbine and replacing the interrupted turbine process steam with process steam from the steam accumulator, for the purpose of rapidly increasing the output of the steam turbine plant so that the condensing component of the turbine or a condensing turbine, respectively, immediately receives an increased flow of steam.
Claim 2
Dependent Claim 129 words
Method for the rapid increase in output of a steam turbine plant using process steam, and in particular of a steam turbine plant connected with an electro-generator, comprising: drawing off, during normal operations, the necessary process steam from a bleeder of one turbine; simultaneously filling, or maintaining full, with steam from at least one drawing-off point of the high-pressure component of a turbine and/or with live steam, a steam accumulator; and, interrupting the drawing off of the process steam from the turbine and replacing the interrupted turbine process steam with process steam from the steam accumulator, for the purpose of rapidly increasing the output of the steam turbine plant so that the condensing component of the turbine or a condensing turbine, respectively, immediately receives an increased flow of steam.
Claim 3
Dependent Claim 18 words
Method as claimed in claim 1, further comprising: the process steam being drawn off a bleeder condenser turbine.
Claim 4
Dependent Claim 30 words
Method as claimed in claim 2, including: using a steam turbine plant provided with at least one back-pressure turbine to furnish the process steam, as well as a condensing turbine.

References Cited (Backward Citations)

US1726730A Cited
US3724214A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-06-27 1986-12-27 1987-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-06-27 1990-12-27 1991-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-06-27 1994-12-27 1995-06-28 $7700.00 Window Closed / Lapsed

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