W-flame boiler capable of flexibly regulating peak by using reserved coal bunker and boiler peak regulating method

A storage bin and peak-shaving technology, which is applied in the direction of combustion methods, combustion using lump fuel and powder fuel, combustion using lump fuel and gaseous fuel, etc., can solve the problem of poor deep peak-shaving ability of boilers and flexible peak-shaving technology Difficulty and other problems, to achieve the effect of flexible peak shaving

Inactive Publication Date: 2022-03-01
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing W-flame boiler flexible peak-shaving technology is difficult and the boiler’s deep peak-shaving ability is poor, and then provide a W-flame boiler and a boiler peak-shaving method that utilizes the reserve coal bunker for flexible peak-shaving

Method used

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  • W-flame boiler capable of flexibly regulating peak by using reserved coal bunker and boiler peak regulating method
  • W-flame boiler capable of flexibly regulating peak by using reserved coal bunker and boiler peak regulating method

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specific Embodiment approach 1

[0024] Specific implementation mode one: combine Figure 1-Figure 2 To illustrate this embodiment, the W-flame boiler for flexible peak regulation using the reserve coal bunker includes a reserve coal bunker system, a boiler body 7, two sets of double-cyclone burners 8 and a secondary air box 9; the reserve coal bunker system includes two A first storage bin 2, two mixing bins and four coal mills 5; two groups of double cyclone tube burners 8 are respectively installed on the front furnace arch and the rear furnace arch of the boiler body 7, and the secondary wind box 9 is installed on On the periphery of the boiler body 7, a first storage bin 2 communicates with a set of double cyclone burners 8 on the front furnace arch of the boiler body 7 through a coal mill 5, and the other first storage bin 2 communicates with the boiler body 7 through a coal mill 5. A group of double-cyclone burners 8 on the back furnace arch are connected, one mixing chamber is connected to a group of ...

specific Embodiment approach 2

[0026] Specific implementation mode two: combination Figure 1-Figure 2 Describe this embodiment, the W flame boiler that uses the reserve coal bunker to adjust the peak flexibly in this embodiment, the mixing chamber includes the basic warehouse 1 and the second storage warehouse 2-1, and the basic warehouse 1 and the second storage warehouse 2-1 are connected with The coal mill 5 is connected. Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0027] Specific implementation mode three: combination Figure 1-Figure 2 Describe this embodiment, the W flame boiler that utilizes the reserve coal bunker flexible peak adjustment described in this embodiment, the mixing bin also includes a blender 4, and the basic bin 1 and the second storage bin 2-1 pass through the blender 4 and the pulverized coal Machine 5 is connected. Other compositions and connection methods are the same as those in the second embodiment.

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Abstract

The invention relates to a W flame boiler capable of flexibly regulating peak by using a storage coal bunker and a boiler peak regulating method, and aims to solve the problems that the flexible peak regulating technology of the conventional W flame boiler is difficult and the deep peak regulating capability of the boiler is poor. The boiler comprises a storage coal bunker system, a boiler body, a double-cyclone combustor and a secondary air bellow. The storage coal bunker system comprises a first storage bunker, a mixing bunker and a coal mill; one first storage bin is communicated with a double-cyclone burner on a front boiler arch of the boiler body, and the other first storage bin is communicated with a double-cyclone burner on a rear boiler arch of the boiler body. 2, combustion work, wherein a boiler body is started to work; and 3, peak regulation work is conducted, specifically, the boiler body is subjected to peak regulation work by controlling the mass and the type of pulverized coal entering the boiler body from the first storage bin and the mixing bin, and the coal feeding amount proportion of high-quality bituminous coal stored in the second storage bin is changed. The invention belongs to the field of boilers.

Description

technical field [0001] The invention relates to a W flame boiler for flexible peak regulation and a boiler peak regulation method, in particular to a W flame boiler and a boiler peak regulation method for flexible peak regulation using a reserve coal bunker, and belongs to the field of boilers. Background technique [0002] W Flame Boiler is a power plant boiler specially designed for burning lean coal and anthracite and other low-volatile and difficult-to-combustible coals introduced by China from North Africa and Western Europe since the 1990s. Due to the tight and stable lithofacies structure, small porosity and low reactivity of anthracite and lean coal, in actual combustion, there are often problems of difficulty in ignition, stable combustion and burnout, which require higher ignition temperature and The burnout temperature and pulverized coal burnout time are longer. When the boiler is running at low load, the primary air and secondary air will decrease, and the temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C5/08F23D1/02F23K3/02F23K1/00B02C21/00
CPCF23C5/08F23D1/02F23K3/02F23K1/00B02C21/00
Inventor 李争起杜贺郑玉张鸣镝陈智超宋健
Owner HARBIN INST OF TECH
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