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Axial swirl vane for rotational flow combustor and arrangement thereof

A swirl burner and swirl vane technology, applied in burners, gas fuel burners, combustion methods, etc., can solve problems such as high pollutant emissions, energy waste, and insufficient combustion

Inactive Publication Date: 2019-07-05
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology, the swirl burner still has the problems of insufficient combustion and high pollutant discharge, resulting in certain energy waste and air pollution

Method used

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  • Axial swirl vane for rotational flow combustor and arrangement thereof
  • Axial swirl vane for rotational flow combustor and arrangement thereof
  • Axial swirl vane for rotational flow combustor and arrangement thereof

Examples

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Embodiment Construction

[0017] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0018] Please refer to Figure 1 to Figure 3 ,in, figure 1 It is the plane expansion diagram of the blade in the present invention; figure 2 is a schematic diagram of the connection of swirl blades on the inner side of the casing; image 3 It is a schematic diagram of the connection of swirl blades on the inner and outer sides of the casing.

[0019] The invention discloses an axial swirl vane for a swirl burner and its arrangement, comprising a sleeve 2 and a swirl vane 1 . The sleeve 2 is a hollow annular cylinder; the swirl vane 1 is embedded in the hollow annular cylinder; the outer edge of the swirl vane 1 is welded on the outer cylindrical surface of the hollow annular cylinder; The inner edge of the swirl vane 1 is welded on the inner cylindrical surface 3 of the hollow annular cylinder; there are multiple swirl vanes 1, and all the swirl vanes...

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Abstract

The invention discloses an axial swirl vane for a rotational flow combustor and an arrangement thereof. The axial swirl vane comprise a sleeve and swirl vanes, the swirl vanes are uniformly distributed on the sleeve along the radial section, the swirl vanes are of a hyperboloid structure, and the swirl vanes are overlapped with each other. The external combustion-supporting agent or the fuel gas forms a backflow region after passing through a swirler, a reflux area is formed near the spray-out end of the combustor, and it is ensured that the fuel and the air can be fully mixed, the height of the combustion flame is stable and the ignition is fast and timely. Meanwhile, a large amount of surrounding flue gas is sucked by the backflow region, so that the mixed gas can be diluted to a relatively low oxygen content before being combusted, and the generation amount of nitric oxide is reduced.

Description

technical field [0001] The invention relates to the technical field of combustion equipment, and more specifically relates to a swirl vane for a swirl burner used in a gas boiler. Background technique [0002] Boilers are thermal power equipment used to produce steam or hot water, and burners are the core components to achieve boiler combustion stability and low-nitrogen combustion. There are many types of burners, and among them, the swirl burner has a swirl device, which strengthens the mixing of gas and combustion aid, and strengthens the combustion. For the swirl burner, the swirler is an important part of the burner. However, in the prior art, the swirl burner still has the problems of insufficient combustion and high pollutant discharge, resulting in certain energy waste and air pollution. The swirl strength of the swirler, the shape, size and installation angle of the swirl blades directly affect the mixing and combustion of gas and oxidant, so it is necessary to im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/62F23D14/24
CPCF23D14/24F23D14/62F23D2900/14241
Inventor 王春华岳悦
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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