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A combustion apparatus

A technology of combustion equipment and equipment, which is applied in the direction of combustion equipment, combustion chambers, combustion methods, etc., and can solve problems such as discontinuity

Inactive Publication Date: 2008-11-26
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This has the disadvantage that, where the gas first reaches the surface of the front chamber, the gas is in the form of a mass of discrete streams, one from each hole

Method used

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  • A combustion apparatus
  • A combustion apparatus
  • A combustion apparatus

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Embodiment Construction

[0025] With reference to the accompanying drawings, the apparatus comprises a first swirler 1 for generating a swirling mixture of fuel and air, a combustion chamber 3 in which combustion of the fuel / air mixture takes place, a second swirler for generating a swirling flow of air 5. An annular closing plate 7 separating the swirlers 1 and 5 , and an antechamber 9 between the second swirler 5 and the combustion chamber 3 .

[0026] The first swirler 1 includes an annular bottom plate 11 and a plurality of wedges 13 arranged circumferentially at intervals around the annular bottom plate 11 to form grooves 15 between adjacent wedges 13 . At the radially outer end of each groove 15 the plate 11 has an inlet 17 through which the first swirler 1 is supplied with fuel. Each wedge 13 has, at its radially outer end on one side 19 , a hole 21 through which the first swirler 1 is also supplied with fuel. A plurality of mounting holes 23 extend through the wedge 13 and the base plate 11 ....

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Abstract

A combustion apparatus comprising: a device for mixing a fuel with an oxidant; a combustion chamber in which combustion of the fuel / oxidant mix takes place; a pre-chamber located between the device and the combustion chamber; and means for supplying a gas to the pre-chamber so as to form a film of gas on the interior surface of the pre-chamber so as to prevent a combustion flame from the combustion chamber attaching itself to this interior surface damaging the pre-chamber, the supply of gas to the pre-chamber being such that where the gas first reaches the interior surface of the pre-chamber it forms a substantially continuous film of gas over this interior surface.

Description

technical field [0001] The invention relates to a combustion device. [0002] More specifically, the present invention relates to a combustion apparatus comprising: means for mixing fuel and oxidant; a combustion chamber in which combustion of the fuel / oxidizer mixture takes place; a prechamber (pre -chamber); and means for supplying gas to the antechamber so that a gas film is formed on the inner surface of the antechamber, thereby preventing the combustion flame of the combustion chamber from attaching itself to the inner surface and damaging the antechamber. Background technique [0003] It is known to obtain a film of gas on the inner surface of the antechamber by forming holes in the wall of the antechamber and supplying gas to the antechamber via these holes. This has the disadvantage that, where the gas first reaches the surface of the vestibule, the gas is in the form of a large discrete flow, one from each hole. Thus, for the areas of the inner surface between the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/14
CPCF23R3/14F23D14/06F23D14/76F23D14/82F23R3/02
Inventor 伊恩·朱布彼得·马丁维多利亚·桑德森
Owner SIEMENS AG