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US 7,607,304 B2Granted
Steam turbine system
AssigneeElsam Engineering A/S
InventorSven R. Kjær
Life of this patent
Estimating the term…
Abstract
A high pressure steam turbine is connected to a high pressure steam conduit and has a high pressure turbine output shaft connected to a system power output shaft, a bleed output, and a first output conduit for the output of steam at a reduced pressure and temperature. A tuning turbine is connected to the first output conduit and has a tuning turbine output shaft connected to the system power output shaft, and a tuning turbine output conduit for the output of steam from the tuning turbine at a reduced pressure and temperature to a heat exchanger of a regenerative heater system, and further having a bleed output connected to the regenerative system.
Claims21
A steam turbine system, comprising:
- a system power output shaft for the delivery of rotational energy from said steam turbine system;
- an electrical generator connected to said system power output shaft for the generation of electrical energy from said rotational energy delivered from said steam turbine system;
- a high-pressure boiler for the generation of steam at a high-pressure and a high temperature;
- a high-pressure steam conduit connected to said high-pressure boiler for the output of said high-pressure steam from said high-pressure boiler;
- a high-pressure steam turbine connected to said high-pressure steam conduit for receiving said high-pressure steam from said high-pressure steam conduit, said high pressure steam turbine having a first turbine output shaft connected to said system power output shaft, a bleed output and a first steam output conduit for the output of steam from said high-pressure turbine at a reduced pressure and temperature as compared to said high-pressure steam;
- an intermediate pressure steam turbine having an input connected to said first steam output conduit of said high-pressure steam turbine for receiving steam from said high-pressure steam turbine, said intermediate pressure steam turbine having a second turbine output shaft connected to said system power output shaft and a second steam output conduit for the output of steam from said intermediate pressure steam turbine at a further reduced pressure and temperature as compared to steam output from said high-pressure steam turbine;
- a low-pressure steam turbine connected to said second steam output conduit for receiving steam from said second pressure output conduit said first low pressure steam turbine having a third turbine output shaft connected to said system power output shaft and a third steam output conduit for the output of steam at a still further reduced pressure and temperature as compared to steam output from said intermediate pressure turbine;
- a heat exchanger interconnected between said high pressure steam turbine and said low pressure steam turbine so as to heat the steam received by said low-pressure steam turbine;
- a steam regenerative heater system connected to said bleed output of said high-pressure steam turbine for the return of steam from said high-pressure steam turbine to said high-pressure boiler;
- a tuning turbine having an input connected to said first steam output conduit of said high-pressure steam turbine and having a fourth turbine output shaft connected to said system power output shaft;
- and
- a fourth steam output conduit configured to conduct a substantial portion of steam output from said tuning turbine to said regenerative heater system at a reduced pressure and temperature as compared to said steam output from said high-pressure turbine, said tuning turbine further having at least one tuning turbine bleed output connected to said regenerative system.
9 more elements
A steam turbine system, comprising:
- a system power output shaft for the delivery of rotational energy from said steam turbine system;
- an electrical generator connected to said system power output shaft for the generation of electrical energy from said rotational energy delivered from said steam turbine system;
- a high-pressure boiler for the generation of steam at a high-pressure and a high temperature;
- a high-pressure steam conduit connected to said high-pressure boiler for the output of said high-pressure steam from said high-pressure boiler;
- a high-pressure steam turbine connected to said high-pressure steam conduit for receiving said high-pressure steam from said high-pressure steam conduit, said high pressure steam turbine having a first turbine output shaft connected to said system power output shaft, a bleed output and a first steam output conduit for the output of steam from said high-pressure turbine at a reduced pressure and temperature as compared to said high-pressure steam;
- an intermediate pressure steam turbine having an input connected to said first steam output conduit of said high-pressure steam turbine for receiving steam from said high-pressure steam turbine, said intermediate pressure steam turbine having a second turbine output shaft connected to said system power output shaft and a second steam output conduit for the output of steam from said intermediate pressure steam turbine at a further reduced pressure and temperature as compared to steam output from said high-pressure steam turbine;
- a low-pressure steam turbine connected to said second steam output conduit for receiving steam from said second pressure output conduit said first low pressure steam turbine having a third turbine output shaft connected to said system power output shaft and a third steam output conduit for the output of steam at a still further reduced pressure and temperature as compared to steam output from said intermediate pressure turbine;
- a heat exchanger interconnected between said high pressure steam turbine and said low pressure steam turbine so as to heat the steam received by said low-pressure steam turbine;
- a steam regenerative heater system connected to said bleed output of said high-pressure steam turbine for the return of steam from said high-pressure steam turbine to said high-pressure boiler:
- a tuning turbine having an input connected to said first steam output conduit of said high-pressure steam turbine and having a fourth turbine output shaft connected to a gear assembly;
- and
- a fourth steam output conduit configured to conduct a substantial portion of steam output from said tuning turbine to said regenerative heater system at a reduced pressure and temperature as compared to said steam output from said high-pressure turbine, said tuning turbine further having at least one tuning turbine bleed output connected to said regenerative system.
9 more elements
Dependencies are inferred from the claim text.