A measuring device for the installation angle of a boiler burner

Abstract

The present invention discloses a measuring device for the installation angle of a boiler burner, which includes a flat plate, a laser pen and a plurality of fixing brackets. Among them, a guide rail groove system is arranged on one side surface of the flat plate. One end of the fixing bracket is in contact with the inner wall of the burner nozzle to be measured, and the other ends of the fixing brackets are inserted and fixed in the guide rail groove system. The laser pen is fixed on the other side surface of the flat plate, and the laser pen is located at the center position of the cross-section of the burner nozzle to be measured, and the light emitted by the laser pen coincides with the normal line of the cross-section of the burner nozzle to be measured. This device can measure the installation angle of the boiler burner.

Description

Technical Field

[0001] The invention belongs to the field of cold-state dynamic field tests of coal-fired power plants and relates to a measuring device for the installation angle of a boiler burner. Background Art

[0002] For a coal-fired boiler adopting a tangential combustion method, the size and position of the tangential circle directly affect whether the combustion in the furnace is skewed, whether the primary air scours the water-cooled wall, the fullness of the combustion in the furnace, the steam temperature of the boiler, etc. After long-term operation, situations such as deformation of the boiler water-cooled wall and burnout of the burner often occur. At this time, there is a deviation between the actual tangential circle and the designed tangential circle. Therefore, the installation angle of the boiler burner needs to be re-measured and checked. Summary of the Invention

[0003] The purpose of the invention is to overcome the shortcomings of the above-mentioned prior art and provide a measuring device for the installation angle of a boiler burner, which can measure the installation angle of the boiler burner.

[0004] To achieve the above purpose, the measuring device for the installation angle of the boiler burner described in the invention includes a flat plate, a laser pen and several fixing brackets. One side of the flat plate is provided with a guide rail groove system. One end of the fixing bracket is in contact with the inner wall of the burner nozzle to be measured, and the other ends of each fixing bracket are inserted and fixed in the guide rail groove system. The laser pen is fixed on the other side of the flat plate, and the laser pen is located at the center position of the cross-section of the burner nozzle to be measured, and the light emitted by the laser pen coincides with the normal line of the cross-section of the burner nozzle to be measured.

[0005] The rail groove system includes a transverse guide rail groove and a longitudinal guide rail groove, and the transverse guide rail groove and the longitudinal guide rail groove are cross-distributed.

[0006] The transverse guide rail groove and the longitudinal guide rail groove are vertically distributed.

[0007] The number of fixing brackets is four. One end of the first fixing bracket is in contact with the inner wall of the burner nozzle to be measured, and the other end of the first fixing bracket is inserted into one side of the transverse guide rail groove. One end of the second fixing bracket is in contact with the inner wall of the burner nozzle to be measured, and the other end of the second fixing bracket is inserted into the other side of the transverse guide rail groove. One end of the third fixing bracket is in contact with the inner wall of the burner nozzle to be measured, and the other end of the third fixing bracket is inserted into one side of the longitudinal guide rail groove. One end of the fourth fixing bracket is in contact with the inner wall of the burner nozzle to be measured, and the other end of the fourth fixing bracket is inserted into the other side of the longitudinal guide rail groove.

[0008] The fixing bracket is an L-shaped structure, and a magnet is arranged at one end of the fixing bracket in contact with the inner wall of the burner nozzle to be measured.

[0009] It also includes a fixing bracket, where the fixing bracket is fixed on the flat panel, and the laser pointer is fixed on the fixing bracket.

[0010] The fixing bracket is fixed on the flat panel through a magnet chassis.

[0011] The fixing bracket is fixed in the guide rail groove system through a setscrew.

[0012] The fixing bracket is provided with scales.

[0013] The present invention has the following beneficial effects:

[0014] When the measuring device for the installation angle of the boiler burner described in the present invention is specifically operated, the flat panel is fixed at the nozzle of the burner to be measured through the fixing bracket. Among them, the laser pointer is located at the center position of the cross-section of the nozzle of the burner to be measured, and the light emitted by the laser pointer coincides with the normal line of the cross-section of the nozzle of the burner to be measured. The projection point of the normal line on the opposite water-cooled wall surface is obtained, and the distances between the projection point and two adjacent water-cooled wall surfaces in the horizontal direction are measured to determine the installation angle of the boiler burner. The operation is convenient, simple, and has extremely strong practicability. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the flat panel 1;

[0016] Figure 2 It is a schematic structural diagram of the fixing bracket 5;

[0017] Figure 3 It is a schematic diagram of the fixing bracket 8;

[0018] Figure 4 It is the front view of the present invention;

[0019] Figure 5 It is the top view of the present invention.

[0020] Among them, 1 is the flat panel, 2 is the horizontal guide rail groove, 3 is the vertical guide rail groove, 4 is the setscrew, 5 is the fixing bracket, 6 is the magnet, 7 is the magnet chassis, and 8 is the fixing bracket. Detailed Embodiment

[0021] The following further describes the present invention in detail with reference to the drawings:

[0022] Reference Figures 1 to 4, the measuring device for the installation angle of the boiler burner described in the present invention includes a flat plate 1, a laser pen, and several fixing brackets 5. Among them, a guide rail groove system is provided on one side surface of the flat plate 1. One end of the fixing bracket 5 is in contact with the inner wall of the burner nozzle to be measured, and the other ends of the fixing brackets 5 are inserted and fixed in the guide rail groove system. The laser pen is fixed on the other side surface of the flat plate 1. The laser pen is located at the center position of the cross-section of the burner nozzle to be measured, and the light emitted by the laser pen coincides with the normal line of the cross-section of the burner nozzle to be measured.

[0023] Furthermore, the rail groove system includes a transverse guide rail groove 2 and a longitudinal guide rail groove 3. Among them, the transverse guide rail groove 2 and the longitudinal guide rail groove 3 are cross-distributed, and the transverse guide rail groove 2 and the longitudinal guide rail groove 3 are vertically distributed, which is convenient for the installation and positioning of the fixing bracket 5.

[0024] Furthermore, the number of the fixing brackets 5 is four. Among them, one end of the first fixing bracket 5 is in contact with the inner wall of the burner nozzle to be measured, and the other end of the first fixing bracket 5 is inserted into one side of the transverse guide rail groove 2. One end of the second fixing bracket 5 is in contact with the inner wall of the burner nozzle to be measured, and the other end of the second fixing bracket 5 is inserted into the other side of the transverse guide rail groove 2. One end of the third fixing bracket 5 is in contact with the inner wall of the burner nozzle to be measured, and the other end of the third fixing bracket 5 is inserted into one side of the longitudinal guide rail groove 3. One end of the fourth fixing bracket 5 is in contact with the inner wall of the burner nozzle to be measured, and the other end of the fourth fixing bracket 5 is inserted into the other side of the longitudinal guide rail groove 3. Among them, the transverse guide rail groove 2 and the longitudinal guide rail groove 3 are cross and vertically distributed, and the four fixing brackets 5, the transverse guide rail groove 2 and the longitudinal guide rail groove 3 form a cross-shaped structure, which is convenient for determining the center of the flat plate 1 and has a high measurement accuracy.

[0025] Furthermore, the fixing bracket 5 is of an L-shaped structure. Among them, a magnet 6 is provided at one end of the fixing bracket 5 that is in contact with the inner wall of the burner nozzle to be measured. The fixing bracket 5 is adsorbed on the inner wall of the burner nozzle to be measured through the magnet 6, and the installation is relatively convenient.

[0026] Furthermore, it also includes a fixing frame 8. Among them, the fixing frame 8 is fixed on the flat plate 1, and the laser pen is fixed on the fixing frame 8. The fixing frame 8 is fixed on the flat plate 1 through a magnet chassis 7, and the installation of the laser pen is convenient.

[0027] Furthermore, the fixing bracket 5 is fixed in the guide rail groove system through a setscrew 4, which is convenient for fixing the fixing bracket 5.

[0028] Furthermore, the flat plate 1 is of a square structure, and a scale is provided on the fixing bracket 5. Through this scale, the distance between the flat plate surface and the inner wall of the burner nozzle to be measured can be conveniently known, which is convenient for the positioning of the laser pen.

[0029] By fixing a laser pointer at the center point of the flat plate 1 to determine the normal direction of the center position of the boiler burner nozzle cross-section, and finally through the projection point of this normal on the opposite water-cooled wall surface, measuring the horizontal distances between the projection point and two adjacent water-cooled wall surfaces to determine the installation angle of the boiler burner.

[0030] Since the fixing bracket 5 has an L-shaped structure, where the short side extends deep into the throat of the burner nozzle. Therefore, when encountering some damaged burners, due to the damage of the outer edge of the burner, it is impossible to accurately determine the position of the nozzle cross-section. The short side of the fixing bracket 5 can be used to extend deep into the throat of the burner nozzle and closely adhere to the four wall surfaces of the throat to locate the position of the burner nozzle cross-section.

Claims

1. A measuring device for the installation angle of a boiler burner, characterized in that It includes a flat panel (1), a laser pointer, and several fixing brackets (5). Among them, a guide rail groove system is provided on one side surface of the flat panel (1). One end of each fixing bracket (5) is in contact with the inner wall of the burner nozzle to be measured. The other ends of the fixing brackets (5) are inserted into and fixed in the guide rail groove system. The laser pointer is fixed on the other side surface of the flat panel (1). The laser pointer is located at the center position of the cross-section of the burner nozzle to be measured, and the light emitted by the laser pointer coincides with the normal line of the cross-section of the burner nozzle to be measured. By fixing the laser pointer at the center point of the flat panel (1) to determine the normal direction of the center position of the cross-section of the boiler burner nozzle, and finally measuring the distances between the projection point on the opposite water-cooled wall surface along the horizontal direction of two adjacent water-cooled wall surfaces through the normal line, the installation angle of the boiler burner is determined. The rail groove system includes a transverse guide rail groove (2) and a longitudinal guide rail groove (3). Among them, the transverse guide rail groove (2) and the longitudinal guide rail groove (3) are cross-distributed. The transverse guide rail groove (2) and the longitudinal guide rail groove (3) are vertically distributed. The number of fixing brackets (5) is four. Among them, one end of the first fixing bracket (5) is in contact with the inner wall of the burner nozzle to be measured, and the other end of the first fixing bracket (5) is inserted into one side of the transverse guide rail groove (2). One end of the second fixing bracket (5) is in contact with the inner wall of the burner nozzle to be measured, and the other end of the second fixing bracket (5) is inserted into the other side of the transverse guide rail groove (2). One end of the third fixing bracket (5) is in contact with the inner wall of the burner nozzle to be measured, and the other end of the third fixing bracket (5) is inserted into one side of the longitudinal guide rail groove (3). One end of the fourth fixing bracket (5) is in contact with the inner wall of the burner nozzle to be measured, and the other end of the fourth fixing bracket (5) is inserted into the other side of the longitudinal guide rail groove (3).

2. The measuring device for the installation angle of the boiler burner according to claim 1, characterized in that The fixing bracket (5) is of an L-shaped structure. Among them, a magnet (6) is provided at one end of the fixing bracket (5) that is in contact with the inner wall of the burner nozzle to be measured.

3. The measuring device for the installation angle of the boiler burner according to claim 1, wherein It also includes a fixing frame (8). Among them, the fixing frame (8) is fixed on the flat panel (1), and the laser pointer is fixed on the fixing frame (8).

4. The measuring device for the installation angle of the boiler burner according to claim 3, wherein The fixing frame (8) is fixed on the flat panel (1) through a magnet chassis (7).

5. The measuring device for the installation angle of the boiler burner according to claim 1, characterized in that, The fixing bracket (5) is fixed in the guide rail groove system through a setscrew (4).

6. The measuring device for the installation angle of the boiler burner according to claim 1, characterized in that, Scales are provided on the fixing bracket (5).

7. The measuring device for the installation angle of the boiler burner according to claim 1, characterized in that, The flat panel (1) is of a square structure.

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