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

Premixing burner and method for operating a premixing burner

A premix, burner technology, applied in the direction of combustion method, burner, air/fuel supply for combustion, etc., which can solve problems such as lack of inertness

Inactive Publication Date: 2010-06-30
SIEMENS AG
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of inertness, the fuel exhibits high activity

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
  • Premixing burner and method for operating a premixing burner
  • Premixing burner and method for operating a premixing burner
  • Premixing burner and method for operating a premixing burner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Refer to the following Figures 1 to 5 The present invention is described in detail. figure 1 A section through a part of a typical premix burner 1 is schematically shown. The premix combustor 1 includes, inter alia, a casing 7 , a premix zone 2 , an air swirl generator 10 and one or more fuel nozzles 11 . The premixing zone 2 is arranged radially symmetrically around the center axis 12 . The outer side of the premixing zone 2 viewed from the central axis 12 is referred to below as the cone 3 . The side of the premixing zone 2 facing the central axis 12 is referred to below as the hub surface 4 .

[0034]The air mass flow 5 reaches the air swirl generator 10 via the air inlet 16 . The air swirl generator 10 swirls the air mass flow 5 and conveys it further into the premixing zone 2 . From there, the air mass flow is conveyed in the main flow direction 9 to the combustion chamber (not shown).

[0035] On the hub surface 4 of the premixing zone 2 there are one or mo...

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

The invention relates to a method for operating a premixing burner (1). The premixing burner (1) comprises a premixing zone (2). An air mass flow (5) and fuel (6) can be injected into the premixing zone (2), and a potential hot gas backflow area (8) can form. The method according to the invention is characterized in that a fluid containing no fuel (15) is injected downstream, toward the fuel injection, into the premixing zone (2).

Description

technical field [0001] The invention relates to a premix burner, in particular a synthesis gas premix burner, and to a method for operating a premix burner. Background technique [0002] Premix combustors typically include a premix zone where air and fuel are mixed before the mixture is delivered to the combustion chamber. The mixture is burned there, producing hot gases at high pressure. This hot gas is further conveyed to a turbine. Regarding the operation of premixed burners, the first priority is to keep nitrogen oxide emissions low and to avoid flame recoil. [0003] A feature of the synthesis gas-premix burner is that synthesis gas is used as fuel in the synthesis gas-premix burner. In contrast to the classic turbine fuels natural gas and oil, which mainly consist of hydrocarbons, the combustible components of syngas are mainly carbon monoxide and hydrogen. Depending on the gasification method and overall plant design, the calorific value of syngas is approximately...

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 Applications(China)
IPC IPC(8): F23C7/00F23D11/38F23L7/00F23R3/14
CPCF23R3/286F23C7/004F23R3/14F23L2900/07002F23D11/383F23L2900/07009F23D2900/14021F23C2900/07001F23L7/00
Inventor 伯索尔德·凯斯特林马丁·伦兹伯恩德·普拉德
Owner SIEMENS AG