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System for solving slag-bonding problem of water cooling wall around swirling burner

A swirling burner and water-cooled wall technology, which is applied in the direction of burners, burners burning powder fuel, combustion chambers, etc., can solve problems such as intensified slagging in the burner area, deterioration of heat exchange conditions, and shutdown operation, etc., to achieve Reduce the risk of high-temperature corrosion, reduce the reducing atmosphere, and reduce the effect of local heat load

Pending Publication Date: 2021-12-17
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of running time, the slagging in the burner area will intensify, and the heat exchange conditions will continue to deteriorate, which will eventually lead to slagging or burning loss at the burner nozzle
In severe cases, the furnace is forced to shut down or cause operational accidents

Method used

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  • System for solving slag-bonding problem of water cooling wall around swirling burner

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Embodiment Construction

[0017] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0018] The schematic diagrams of the structures according to the disclosed embodiments of th...

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Abstract

The invention discloses a system for solving the slag-bonding problem of the water cooling wall around a swirling burner. The system comprises a swirling burner body and a hot air source, wherein the swirling burner body is fixed to a front wall and a rear wall of the water cooling wall, a water cooling wall protection hot air outlet nozzle guide plate is arranged on the outer wall of a swirling burner outer secondary air channel in the swirling burner body, the wall face, provided with the swirling burner body, of the water cooling wall is parallel to the water cooling wall protection hot air outlet nozzle guide plate, a water cooling wall protection hot air outlet nozzle is formed between the water cooling wall protection hot air outlet nozzle guide plate and the water cooling wall, and an outlet of the hot air source communicates with the water cooling wall protection hot air outlet nozzle. The system can effectively solve the slag-bonding problem of the water cooling wall around the swirling burner.

Description

technical field [0001] The invention relates to a system for solving the slagging of the water cooling wall, in particular to a system for solving the slagging of the water cooling wall around the swirl burner. Background technique [0002] Coal is the fundamental energy source of coal-fired thermal power generation enterprises. The chemical energy produced by the burning of coal is converted into electrical energy. Coal is first ground into coal powder in the coal mill, then separated by the separator, and then transported to the boiler burner through the air powder conveying system, and enters the boiler furnace through the burner nozzle for combustion. There are two main types of burners in large coal-fired power plants: once-through burners and swirl burners. Once-through burners are used in tangentially fired boilers, while swirl burners are used in wall-fired boilers. The swirl burners of various boiler factories at home and abroad are of different styles and types....

Claims

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Application Information

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IPC IPC(8): F23D1/02F23M5/08F23L15/00F24H9/18
CPCF23D1/02F23M5/08F23L15/00F24H9/1854Y02E20/34
Inventor 陈国辉成汭珅柳宏刚周凌宇周平王志刚
Owner XIAN THERMAL POWER RES INST CO LTD
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