Boiler burner tangent circle positioning tool and method

Abstract

The invention provides a boiler burner tangent circle positioning tool and method. The boiler burner tangent circle positioning tool comprises a laser range finder, a leveling tool and a level gauge,wherein the leveling tool is located on the side surface of the laser range finder, the straight outer edge of the leveling tool is parallel to the axial direction of the laser range finder, and the inner edge of the leveling tool is connected with the laser range finder through a connecting piece; and the level gauge is fixedly arranged on the laser range finder or the leveling tool. The beneficial effects of the invention are that the laser range finder is used for measuring the linear distance and replacing a steel wire commonly used in the prior art, a problem of positioning deviation caused by the bending deformation of the steel wire under the action of gravity in the prior art can be avoided, and the purpose of accurately positioning an imaginary tangent circle is achieved.

Description

Technical field [0001] The invention relates to a tangential positioning tool for a boiler burner and a positioning method. Background technique [0002] Tangential combustion is an important combustion organization type of boilers. Compared with swirl combustion, it has the advantages of simpler burner adjustment mechanism and stronger combustion stability. Therefore, it is widely used in coal-fired boilers in my country. The imaginary tangent circle radius is one of the key design parameters of tangential combustion, and the designed tangent circle radius should be strictly guaranteed when positioning the burner. Too large a tangent circle radius may cause problems such as slagging on the water wall of the furnace, while a too small tangent circle radius is not conducive to the ignition and burnout of pulverized coal. The burner installation specification stipulates the angle between the burner jet and the water wall on the horizontal section of the furnace. The deviation betw...

AI Technical Summary

Problems solved by technology

[0004] Disadvantages of the prior art scheme 1: 1. The workload of finding the hearth center is huge, mainly because it takes time and effort to set up scaffolding and diagonal corridors

2. Under the action of gravity, the steel wire will be bent and deformed, which cannot represent a strict straight line, resulting in deviation of positioning

3. It is also time-consuming to determine the center line of the burner nozzle, and it is easy to cause large human errors

[0006] The second disadvantage of the prior art solution: 1. Under the action of gravity, the steel wire connecting the spout and the rear wall of the furnace will be bent and deformed, which cannot represent a strict straight line, resulting in a deviation in positioning

2. It is also time-consuming to determine the center line of the burner nozzle, and it is easy to cause large human errors

[0008] Disadvantages of the existing technical scheme three: 1. Due to the limitation of the space outside the furnace, the dimensions a and b cannot be selected very large

The larger the furnace size, the more severe this error amplification effect

2. It is also time-consuming to determine the center line of the burner nozzle, and it is easy to cause large human errors

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