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Method for starting up gas turbine engine of combined cycle power plant

A technology for gas turbines and power plants, which is used in engine starting, turbine/propulsion fuel control, engine functions, etc., and can solve problems such as reducing the life of key HRSG components

Active Publication Date: 2020-09-25
西门子能源全球两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This minimizes CO emissions but significantly reduces the lifetime of critical HRSG components

Method used

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  • Method for starting up gas turbine engine of combined cycle power plant
  • Method for starting up gas turbine engine of combined cycle power plant
  • Method for starting up gas turbine engine of combined cycle power plant

Examples

Experimental program
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Embodiment Construction

[0041] refer to figure 1 , shows an abstract schematic diagram of the combined cycle power plant 2 . In the figure, a gas turbine engine 4 and a steam turbine engine 6 are shown.

[0042] Gas turbine engine 1 includes an inlet 8 , a compressor 10 , a combustor 12 and a turbine 14 . Fuel 16 is supplied to combustor 12 as indicated by the arrow. The fluid exhausted by the turbine 14 is identified as exhaust fluid 18 .

[0043] Exhaust fluid 18 is provided to heat exchanger 20 , particularly a heat recovery steam generator (HRSG). In the HRSG 20 all heat recovered from the exhaust fluid 18 is converted into high pressure steam 22 which is used to drive the steam turbine engine 6 which converts the energy of the steam into mechanical energy which in turn is converted into electricity.

[0044] The gas turbine engine 4 drives a first generator 24 such that the mechanical load on the gas turbine engine 4 is converted to electrical power in the first generator 24 . The steam tur...

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PUM

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Abstract

A method for starting up a gas turbine engine of a combined cycle power plant The invention relates to a method for starting up a gas turbine engine (4) of a combined cycle power plant (2). In order to enable starting up a gas turbine engine of the combined cycle plant (2) in which the stress on a heat recovery steam generator [20] components is limited while maintaining compliance with the localenvironmental regulations, the method comprises the steps of: step 1 (S1) : applying load to the gas turbine engine (4) and increasing the load until a predetermined combustor firing temperature (TF)is reached, while keeping the adjustable inlet guide vanes in a start position adapted to reduce the mass flow of air (8) into the compressor (10), whereby the predetermined combustor firing temperature (TF) is chosen to be an emission-compliant temperature, step 2 (S2) : further increasing the load of the gas turbine engine (4) while opening the adjustable inlet guide vanes and keeping the predetermined combustor firing temperature (TF) constant until the inlet guide vanes reach an end position adapted to increase the mass flow of air (8) into the compressor (10), step 3 (S3) : further increasing the load of the gas turbine engine (4) while keeping the adjustable inlet guide vanes in the end position until a predetermined load of the gas turbine engine (4) is reached.

Description

technical field [0001] The present invention relates to a method for starting a gas turbine engine of a combined cycle power plant, said gas turbine engine comprising a compressor, a combustor and a turbine, said compressor providing compressed air to said combustor for use with fuel combustion to produce a working fluid, and the turbine receives the working fluid to produce power; the compressor includes adjustable inlet guide vanes that can be used to minimize air mass flow into the compressor Adjustable between a fully closed position and a fully open position for providing maximum mass flow of air into the compressor. [0002] Furthermore, the invention relates to a gas turbine engine and a combined cycle power plant having such a gas turbine engine. Background technique [0003] During start-up of a combined cycle power plant, the gas turbine portion of the plant is started before the steam turbine portion. During start-up, there is a relatively rapid increase in the ...

Claims

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Application Information

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IPC IPC(8): F01D19/00F01K13/02F02C9/54
CPCF01D19/00F01K13/02F02C9/54F05D2260/85Y02E20/16F05D2220/32F05D2220/72
Inventor 谭国汶C·科伊内N·B·瓦普勒
Owner 西门子能源全球两合公司
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