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350MW supercritical boiler combustor nozzle tube panel device and method

A burner nozzle and supercritical boiler technology, applied in the field of boilers, can solve the problems of low operating efficiency and low steam parameters of power plants, and achieve the effects of simple installation, light weight, and overcoming the shortcomings of hedging combustion.

Active Publication Date: 2015-05-27
HARBIN BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]At present, domestic 300MW lignite boilers are all subcritical, and the steam parameters are low, which leads to low operating efficiency of power plants

Method used

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  • 350MW supercritical boiler combustor nozzle tube panel device and method
  • 350MW supercritical boiler combustor nozzle tube panel device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 350MW supercritical boiler burner nozzle tube panel device, its composition includes: the tube panel connected to the pipe 1, the tube panel is bent in sections according to the smallest possible radius of curvature, and the tube is passed through the burner bellows, the tube panel The protruding part of the load is connected to the burner and the water wall of the boiler by connecting pieces, and the burner and the water wall are connected to the frame beam through the tension plate 3 .

Embodiment 2

[0022] In the 350MW supercritical boiler burner nozzle tube panel device described in Example 1, the tube is a spiral coil structure, the tube is installed at an angle of 13.94 degrees to the horizontal line, and the tubes 1 are evenly distributed. A group of pipes 1 described above is connected with a group of spacers 2, and the spacers 2 are connected with comb plates 4, and flange plates 5 with angles are installed between the pipes 1.

Embodiment 3

[0024] 350MW Supercritical Boiler Burner Nozzle Tube Screen Fixing Treatment Method, adopting the method of sub-sections to bend the tube according to the minimum curvature that can be realized on site, passing the tube in the burner air box; controlling the vertical upward or downward direction of the bent tube through the tube screen The height of the water cycle is guaranteed to ensure the safety and reliability of the water cycle; the protruding part of the tube panel load and the set-up part of the burner are connected to the water wall by connecting pieces, and then transmitted to the frame beam of the boiler through the tension plate, because most of the pipes have to pass through the burner air box , After the tube panel is produced first during assembly, the split burner is assembled.

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PUM

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Abstract

350MW supercritical boiler burner nozzle tube screen device and method. At present, domestic 300MW lignite boilers are all subcritical, and the steam parameters are low, which leads to low operating efficiency of power plants; according to the national "Eleventh Five-Year Plan" energy planning and the requirements of industrial structure adjustment and energy saving and consumption reduction, develop high-parameter, high-efficiency supercritical A boiler is imperative. A 350MW supercritical boiler burner nozzle tube panel device, which consists of a tube panel (1) connected to the pipes. The tubes and the load protruding part of the tube panel are connected to the burner and the water wall of the boiler by connecting pieces, and the burner and the water wall are connected to the frame beam through the tension plate. The invention is used for the nozzle tube screen of the 350MW supercritical boiler burner.

Description

Technical field [0001] The invention involves a boiler field, which specifically involves a 350MW ultra -critical boiler burner spraying pipe screen device and fixed treatment method. Background technique [0002] At present, the domestic 300MW -level lignite boilers are sub -critical, and the low steam parameters have caused low operating efficiency of power plants.According to the national "Eleventh Five -Year Plan" energy planning and industrial structure adjustment and energy conservation and consumption reduction, it is imperative to develop high -parameters and high -efficiency supercritical boilers. [0003] The 350MW supercritical lignite boiler is a product developed by our company with independent intellectual property rights. The combustion system focuses on considering the combustion of high water and lignite, and uses wall -cut combustion methods.The successful development of the wall -cut ball -cut burner spraying screen provides conditions for the layout of the bur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B37/24F22B31/08
Inventor 张彦军张殿军王凤君王宏生乔丽英赵彦华
Owner HARBIN BOILER
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