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In-Flow Burner Module

An internal combustion and fuel technology, applied in the direction of burners, gas fuel burners, combustion chambers, etc., can solve the problems of low mixing and partial pressure reduction, no flow of in-flow burners, etc., and achieve the effect of low NOx emission

Active Publication Date: 2018-12-18
FIVES PILLARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Known in-flow burners do not provide the mixing and partial pressure reduction necessary to significantly control carbon monoxide (CO) emissions and flame stability at low TEG velocities under these difficult conditions

Method used

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Examples

Experimental program
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Embodiment Construction

[0052] available at Figure 7 The assembly of the in-stream burner seen in is composed of a plurality of in-stream burner modules 1 arranged side by side, each comprising a tube 2 constituting a fuel supply tube. Each burner module 1 comprises fins 3 arranged symmetrically with respect to the plane P and at an angle β on either side of the tube 2 in which the fuel 4 flows. Fuel flows through injection orifices 20 arranged symmetrically on either side of plane P. As shown in FIG.

[0053] The tube 2 is covered by a shield 5 pierced with a hole 50 facing the orifice 20 .

[0054] The distance between the fins 3 on one side and the tube 2 varies. The flap 30 is closest, the flap 31 is in the middle position and the flap 32 is arranged furthest outside, ie farthest from the tube 2 . The flaps 30 , 31 , 32 are separated from each other by an opening 33 . Of course, there can be more or less than three fins.

[0055] The operation of the burner module will now be described.

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PUM

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Abstract

The invention relates to a burner module (1) in air flow, comprising: a supply pipe (2) having an approximately circular cross-section and having an axis; a fuel injection orifice (20) located on the supply pipe and Intended to generate flames; oxidizer injection orifices and fins (3), arranged upstream of the burner module symmetrically with respect to the fuel flow plane P and transversely on the supply pipe (2) to the side of the fuel injection orifices (20) On each side; wherein: in the section of the supply pipe (2) there are at least two fuel injection orifices (20) and these fuel injection orifices have axes at an angle α to the flow plane P of the oxidant. In this way, gas is injected at a plurality of orifices located in at least two separate planes. These two planes define a space that is free of fuel supply and free of oxidant supply, thereby promoting internal recirculation of combustion gases within the flame and bringing most of the burned gases towards the centre.

Description

technical field [0001] The present invention relates to an in-stream burner for direct heating of air or combustion gases from a turbine or engine, and more particularly relates to an in-stream burner module, an in-stream The burner modules are arranged side-by-side on the manifold to form an in-flow burner. This type of burner uses turbine exhaust gas (TEG) or engine exhaust gas as an oxidant, which has a lower oxygen concentration (in wet smoke) than ambient air, a higher temperature than ambient temperature, and generally a relatively low velocity leaving the burner, and uses natural gas, Rock gas, oil gas or gas from industrial processes as fuel. Background technique [0002] In recent years, gas turbines and recovery boilers have been developed towards improving the energy efficiency of combined cycles. Thus, turbine exhaust gas (TEG) is characterized by a low oxygen concentration (between 9% and 13%) in wet smoke and a more variable and higher temperature (between 35...

Claims

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Application Information

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IPC IPC(8): F23R3/20F23D14/20
CPCF23R3/20F23D14/20F23D2900/14003F23R3/02F05D2240/35F23D2900/21003F23R3/18F02C3/34
Inventor 福阿德·赛义德路易斯·里奇扬妮克·布代
Owner FIVES PILLARD