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Regulating the flame characteristics in the burner

A burner and flame technology, applied in the direction of burners, combustion chambers, burners burning powder fuel, etc., can solve the problems of fuel preheating preparation limitations, etc., to achieve efficiency improvement, increase limit load ratio, and multiple operation options Effect

Inactive Publication Date: 2017-10-27
施政
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Unfortunately, the above does not apply to small and medium-sized burners burning pulverized solid fuels, such as pulverized coal, with small units, fuel preheating preparations are limited

Method used

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  • Regulating the flame characteristics in the burner
  • Regulating the flame characteristics in the burner
  • Regulating the flame characteristics in the burner

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Embodiment Construction

[0018] The present invention may be better understood, and its numerous objects and advantages made apparent to those skilled in the art by referencing the accompanying drawings.

[0019] Figure 1A and 1B Two cross-sectional views of the invention are described according to one embodiment of the invention. Figure 1A illustrates a system with no swirl applied to the secondary air, while Figure 1B A system for imparting swirl to secondary air is described. The thick arrows numbered 1 to 4 illustrate the direction of flow of the relative air flow occurring within the system. refer to Figure 1A and Figure 1B , the burner 101 includes a combustion chamber, which is tapered in shape. The primary air / fuel mixture flow 1 is generally along the first direction of the central axis of the burner, through the air duct 102 installed in the axial position of the burner 101 outlet, using the primary air / fuel mixture air supply device (in Fig. 1), enter the burner 101. The outlet of...

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Abstract

The present invention proposes a system and method to change the combustion flame through the adjustment of four main variables, thereby improving the operating conditions of small and medium-sized burners using powdered solids as fuel. These variables include: volume of primary air / fuel mixture; secondary air volume; tertiary air volume and swirl to secondary air. By changing these variables the combustion characteristics of the fuel can be adjusted significantly according to the user's preference.

Description

[0001] Cross references to related applications. [0002] This application claims priority to US Provisional Patent Application US 61902073, entitled "Method system for enhancing adjustability of flame characteristics in small and medium-sized burners", filed on November 8, 2013, which is incorporated by reference. technical field [0003] The present invention relates to the combustion of pulverized solid fuels such as pulverized coal in small to medium sized burners. More particularly, it relates to a system and method for improving boiler operation by making adjustments to four primary variables during the combustion process. Background technique [0004] The present invention relates to pulverized solid fuels in small combustors and methods of operating said systems. However, the invention is not limited to this application only. Those skilled in the art will recognize that the system and method of the present invention may be used in many other applications by which s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C7/00
CPCF23D1/00F23C6/045F23C7/002F23C7/02F23C2900/06041
Inventor 施政
Owner 施政