Corner tangential boiler with thermal power flexibility adjusting function and adjusting method of corner tangential boiler

A technology of four-corner cutting and adjustment method, which is applied in the direction of adjusting fuel supply, combustion method, and combustion using lump fuel and liquid fuel, and can solve problems such as sacrificing boiler efficiency, furnace fire extinguishing and blasting, and easy flameout, etc., to achieve improvement Peak shaving flexibility, fast load response, and the effect of increasing furnace temperature

Inactive Publication Date: 2017-01-04
CHONGQING FURAN TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1) The peak shaving capacity is generally maintained at the design value of 40%-50% of the rated load, and the deep peak shaving below 40% of the rated load cannot be carried out, or during the deep peak shaving process, the furnace temperature drops, the pulverized coal is difficult to ignite, and the flame is stable Poor performance, easy to extinguish the fire, there is a major accident hidden danger of fire extinguishing and blasting in the furnace;
[0008] 2) During the low-load peak-shaving process,...

Method used

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  • Corner tangential boiler with thermal power flexibility adjusting function and adjusting method of corner tangential boiler
  • Corner tangential boiler with thermal power flexibility adjusting function and adjusting method of corner tangential boiler
  • Corner tangential boiler with thermal power flexibility adjusting function and adjusting method of corner tangential boiler

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Experimental program
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Effect test

Embodiment 1

[0058] Embodiment one, combine figure 1 It can be seen that the four-corner tangential circle boiler of this embodiment includes a total of 6 burners, of which A1 and A2 are the lower burners, B1 and B2 are the middle burners, and C1 and C2 are the upper burners. Any one or two layers of the lower burner is a peak-shaving burner; any one or two layers of the lower burner is a peak-shaving burner, and the peak-shaving burner is an internal combustion burner, which can ignite pulverized coal inside the burner. And stable combustion, other burners are ordinary burners, ordinary burners are internal combustion burners or external combustion burners. The four-corner tangential boiler referred to in the present invention can be a boiler with the above structure directly produced by the manufacturer, or an ordinary boiler composed of ordinary burners, which is reformed by burners, that is, according to the structure of the present invention Transform some common burners into peaking...

Embodiment 2

[0095] Embodiment two, such as figure 2 The boiler structure of the shown embodiment 2 is basically the same as that of the embodiment 1, the difference is that the four-corner tangential circle boiler of this embodiment includes a total of 5 layers of burners, of which layers A1 and A2 are the lower burners, and layer B1 is the middle burner , C1, C2 layer is the upper burner, any one or two layers of the upper burner is a peak-shaving burner; any one or two layers of the lower burner is a peak-shaving burner,

[0096] In this embodiment, there are many ways to arrange the burners, including at least the following:

[0097] The first type, C2 and A1 are peak-shaving burners, and A2, B1 and C1 are ordinary burners;

[0098] The second type, C2 and A2 are peak-shaving burners, and A1, B1 and C1 are ordinary burners;

[0099] The third type, C1 and A1 are peak-shaving burners, and A2, B1 and C2 are ordinary burners;

[0100] The fourth type, C1 and A2 are peak-shaving burner...

Embodiment 3

[0106] Embodiment three, such as image 3 The boiler structure of the third embodiment shown is basically the same as that of the first embodiment, the difference is that the four-corner tangential circle boiler of this embodiment includes a total of 4 layers of burners, of which layers A1 and A2 are the lower burners, and layer B1 is the middle burner , the C1 layer is the upper burner, and the upper burner is a peaking burner; any one or two layers of the lower burner is a peaking burner,

[0107] In this embodiment, there are many ways to arrange the burners, including at least the following:

[0108] The first type, C1 and A1 are peak-shaving burners, and A2 and B1 are ordinary burners;

[0109] The second type, C1 and A2 are peak-shaving burners, and A1 and B1 are ordinary burners;

[0110] The third type, C1, A1, and A2 are peak-shaving burners, and B1 is an ordinary burner;

[0111] The boiler control method of the third embodiment is basically the same as that of th...

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Abstract

The invention relates to a corner tangential boiler with a thermal power flexibility adjusting function and an adjusting method of the corner tangential boiler, in particular to the field of the corner tangential boiler. Combustors are divided into upper part combustors, middle part combustors and lower part combustors according to the mounting position levels, and are characterized in that the upper part combustors are combustors of a first layer and a second layer by counting from top to bottom of the boiler and the combustors of any one layer or two layers are peak-regulating combustors; the lower part combustors are combustors of a first layer and a second layer by counting from bottom to top of the boiler and the combustors of any one layer or two layers are peak-regulating combustors; the peak-regulating combustors are internal combustion type combustors; pulverized coal can be ignited in the combustors and can be combusted stably; other combustors are common combustors; and the common combustors are internal combustion type combustors or external combustion type combustors. The invention has the beneficial effects that thermal power operation flexibility and fuel flexibility of the boiler can be improved; the deep peak-regulating ability of the boiler is improved prominently; quick climbing ability is achieved; and the boiler can start/stop quickly.

Description

technical field [0001] The invention relates to a four-corner tangential boiler with thermal power flexibility adjustment function and an adjustment method thereof, in particular to the field of four-corner tangential boilers. Background technique [0002] In recent years, my country's wind power and photovoltaic installed capacity has grown rapidly, and the installed capacity both in service and under construction has ranked first in the world. On the one hand, new energy sources such as wind power and photovoltaics have provided us with a large amount of clean electricity; on the other hand, the randomness and instability of their power generation output have also brought great challenges to the safe operation of the power system and the guarantee of power supply. [0003] Judging from the current situation, the regulation capacity of my country's power system is difficult to fully meet the requirements of large-scale development and consumption of new energy, and serious ...

Claims

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Application Information

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IPC IPC(8): F23C5/32F23C7/00F23N1/02
CPCF23C5/32F23C7/00F23C2201/101F23N1/02F23N2237/02F23N2239/02
Inventor 向卫贾益
Owner CHONGQING FURAN TECH
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