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Gas turbine power plant with non-homogeneous input gas

A technology for gas turbines and power stations, which is applied in gas turbine installations, flue gas combustion, combustion chambers, etc., and can solve problems such as incomplete combustion, high NOx emissions, and adverse effects on service life.

Active Publication Date: 2014-12-10
ANSALDO ENERGIA IP UK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Throttled burners operate at a reduced hot gas temperature relative to the average hot gas temperature, but this can lead to incomplete combustion
Additionally, unthrottled burners operate at elevated hot gas temperatures, which can lead to higher NOx emissions and can have an adverse effect on service life

Method used

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  • Gas turbine power plant with non-homogeneous input gas
  • Gas turbine power plant with non-homogeneous input gas
  • Gas turbine power plant with non-homogeneous input gas

Examples

Experimental program
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Embodiment Construction

[0051] figure 1 The schematic diagram shows the necessary components of a gas turbine power station. The gas turbine 6 includes a compressor 1, and the combustion air compressed in the compressor 1 is supplied to the combustion chamber 4 and burned together with the fuel 5 there. The hot combustion gases then expand in the turbine 7. The usable energy generated in the turbine 7 is then converted into electrical energy by the first generator 25, for example, the first generator 25 is arranged on the same shaft 37.

[0052] In order to make best use of the energy still contained in it, the hot flue gas 8 discharged from the turbine 7 is used in the heat recovery steam generator (HRSG) 9 to generate fresh steam 30 for use in the steam turbine 13 or other devices . The usable energy generated in the steam turbine 13 is then converted into electrical energy, for example, by a second generator 26 which is arranged on the same shaft 37. The water-steam cycle is simplified in the exam...

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PUM

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Abstract

#CMT# # / CMT# The method involves arranging compressor (1) with annular entry surface, two burners, combustion chambers (14,15) and high-pressure turbines (16,17). The oxygen-reduced gas (21) and sucking-in fresh air (2) are supplied alternately to the compressor. The oxygen concentration of the oxygen-reduced gas is smaller than the oxygen concentration of sucking-in fresh air of compressor. The flow channel of the compressor is attached with compressor intake (3) having two sections (51,52) arranged alternately in circumferential direction. #CMT# : # / CMT# An independent claim is included for gas turbine electric power plant. #CMT#USE : # / CMT# Method for operating gas turbine in gas turbine electric power plant (claimed). #CMT#ADVANTAGE : # / CMT# The carbon dioxide partial pressure in the exhaust gases can be increased so as to reduce the power losses and efficiency losses of electric power plant. The oxygen contents in the sucking in gases from gas turbines can be reduced to reduce the nitrous oxide emissions. The operability of the gas turbine can be improved with prolonged service life and efficient cleaning function. #CMT#DESCRIPTION OF DRAWINGS : # / CMT# The drawing shows a schematic view of the gas turbine electric power plant. 1 : Compressor 2 : Sucking-in fresh air 3 : Compressor intake 14,15 : Combustion chambers 16,17 : High-pressure turbines 21 : Oxygen-reduced gas 51,52 : Sections.

Description

Technical field [0001] The present disclosure relates to a method for operating a gas turbine with two intake streams of different gas compositions, and also relates to a gas turbine with a divided compressor inlet. Background technique [0002] Traditionally, the gas that is as uniform as possible is supplied to the compressor of the gas turbine for compression. In applications where gases with different compositions are provided, these gases are first mixed and then supplied to the compressor. For example, in the case of flue gas recirculation, flue gas having a gas composition different from that of fresh air is used. Recirculation is a technology that can basically be used for various goals in gas turbines, such as for controlling emissions, reducing the amount of flue gas, and separating carbon dioxide. During the recirculation of the flue gas in the gas turbine, most of the flue gas is diverted from the entire flue gas flow, and after cooling and washing, it is usually fe...

Claims

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Application Information

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IPC IPC(8): F02C7/08F02C3/34F23R3/28F23R3/34
CPCF23R3/286F23C9/00F02C7/08F23R3/26F23C2202/30F02C3/34F02C3/13F23R3/04
Inventor F.古伊特M.N.波亚帕克卡姆F.格拉夫B.舒尔曼斯E.本兹
Owner ANSALDO ENERGIA IP UK LTD
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