Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for stabilizing combustion in gas turbine engines

A gas turbine, burner technology, applied in the burner safety device, gas fuel burner, burner and other directions

Inactive Publication Date: 2010-04-28
SIEMENS AG
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, during the part of the unsteady cycle where the combustion is dense, large amounts of nitrogen oxides are produced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for stabilizing combustion in gas turbine engines
  • Device for stabilizing combustion in gas turbine engines
  • Device for stabilizing combustion in gas turbine engines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Those skilled in the art will easily understand the above and other features of the burner of the present application from the detailed description of the following preferred specific examples. In the following reference drawings, similar structures of the present invention are marked with similar component symbols. exist figure 2 Among them, the combustor for the gas turbine combustor is generally indicated by the component symbol 100. The burner 100 uses a central blunt body flame stabilizer 20 and an orifice arrangement 80 to stabilize the combustion process. The burner 100 includes a cylindrical body 50, a flame holder 20, a nozzle arrangement 80, and other components. The main body 50 and flame holder 20 may be attached to each other in conventional manner, either held together with a tight fit, or mechanically interlocked.

[0048] Combustor body 50 includes axially opposed upstream and downstream ends, 52 and 54, respectively. A plurality of axial fuel inlet...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Disclose is a burner for a gas turbine combustor that uses a central bluff body flame holder and a quarl to shape the recirculation zone in order to stabilize the combustion process. The burner includes, among other elements, a cylindrical main body and a flame holder. The flame holder is disposed within a fuel-air mixing chamber and includes a base portion and an elongated bluff body. The base portion engages with the main body of the burner in a supporting manner and the elongated bluff body extends in an axially downstream direction from the base portion through the internal mixing chamberso as to position a combustion ignition point downstream of the internal mixing chamber. In a representative embodiment, the burner further includes a quarl device disposed adjacent to the downstreamend portion of the burner main body. The quarl device defines an interior recirculation chamber and a burner exit. The interior recirculation chamber is adapted for receiving precumbustion gases fromthemixing chamber and for recirculating a portion of the combustion product gases in an upstream direction so as to aid in stabilizing combustion.

Description

technical field [0001] The present invention relates to a burner for a gas turbine, and more particularly to a burner suitable for stabilizing engine combustion, and more particularly to a burner incorporating a nozzle arrangement and utilizing a central blunt body flame stabilizer to stabilize the combustion process. Background technique [0002] Gas turbines are used in a variety of applications, including power generation, military and commercial aviation, pipeline transmission, and marine transportation. In a gas turbine engine, fuel and air are supplied to a combustion chamber where they are mixed and ignited with a flame to start combustion. Gas turbine engines have several major technical issues related to the combustion process. These issues include, for example, thermal efficiency of the burner (burner / combustor), proper mixing of fuel and air, flame stabilization, pulsation and noise exclusion, and control of pollutant emissions, especially nitrogen oxides (NO X ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/28F23R3/18F23D14/74F23M3/00
CPCF23R3/286F23D2209/20F23D14/74F23R3/18F23D14/72F23R3/28
Inventor M·康韦尔V·D·米洛萨夫列维奇
Owner SIEMENS AG