CN109596071A - A kind of corner tangential firing device spout level angle measurement method - Google Patents
A kind of corner tangential firing device spout level angle measurement method Download PDFInfo
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- CN109596071A CN109596071A CN201811629565.0A CN201811629565A CN109596071A CN 109596071 A CN109596071 A CN 109596071A CN 201811629565 A CN201811629565 A CN 201811629565A CN 109596071 A CN109596071 A CN 109596071A
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- revetment
- burner nozzle
- angle
- burner
- distance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
Abstract
A kind of corner tangential firing device spout level angle measurement method, burner nozzle is equipped with reflecting plate, the reflecting plate is parallel with plane where burner nozzle, the burner nozzle diagonal position is equipped with light source, the source emissioning light line is fallen in after baffle reflection on the first revetment, distance between light drop point and the second revetment is measured, the angle between burner nozzle and the second revetment is calculated by arctan function.The corner tangential firing device spout level angle measurement method that the technical program provides, it is accurate to measure, and light source and reflecting plate are easy to obtain, and execute-in-place is convenient, flexible arrangement, and scene is easy to implement, easy to be flexible, low in cost.
Description
Technical field
The present invention relates to field of thermal power more particularly to a kind of corner tangential firing device spout level angle measurement sides
Method.
Background technique
Burner is heat power plant boiler capital equipment, and corner tangential firing device is a kind of primary structure form.Coal dust
Fuel, which is entered in furnace with auxiliary wind by being arranged in the burner of burner hearth quadrangle, to burn, and combustor level angle is to form gas in furnace
The critical boundary parameter for flowing the circle of contact and position will affect efficiency of combustion and burner and heating surface safety.
In boiler capital construction installation, established angle is measured to burner hearth center unwrapping wire on the basis of the pedestal of burner nozzle rear portion
Degree, but in boiler later period repair and maintenance or test adjustment, it is not available burner spout rear portion pedestal generally (in frame
Inside configuration), realize that the accurately measurement of burner nozzle level angle is relatively difficult.
Currently without the standards and specifications of measurement corner tangential firing device spout level angle, existing method is mostly with technology people
Member's experience, general measure error are larger.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the problems of the existing technology, providing a kind of quadrangle tangential circle combustion
Burner spout level angle measurement method is precisely calculated burner nozzle level according to distance between site each in burner
Angle.
A kind of corner tangential firing device spout level angle measurement method provided by the invention, is to be accomplished by the following way
: burner nozzle is equipped with reflecting plate, and the reflecting plate is parallel with plane where burner nozzle, and the burner nozzle is diagonal
Position is equipped with light source, and the source emissioning light line is fallen in after baffle reflection on the first revetment, measures light drop point and second
Distance between revetment calculates the angle between burner nozzle and the second revetment by arctan function.
Preferably, the angle between burner nozzle and the second revetment is calculated using arc cotangent function.
Preferably, the angle between burner nozzle and the second revetment is calculated using arcsin function function.
Preferably, the angle between burner nozzle and the second revetment is calculated using inverse cosine function function.
Preferably, light source uses monochromatic light source.
Multiple burner nozzles are set as needed in practical applications.
Compared with prior art, the present invention has the following advantages and beneficial effects: the quadrangle tangential circle that the technical program provides
Burner nozzle level angle measurement method calculates angle by measurement distance after light reflection positioning, passes through longer light path
Accurately be exaggerated angle can measured amount, and greatly reduce relative measurement error；Common laser hair can be used in light source
The similar devices such as pen are penetrated, smooth mirror surface can be used in reflecting plate, is easy to obtain；Laser and reflecting plate are two independent portions
Part, execute-in-place are convenient；Laser flexible arrangement, scene is easy to implement, easy to be flexible, low in cost.
Detailed description of the invention
Fig. 1 is a kind of corner tangential firing device spout level angle measurement method schematic diagram provided by the invention；
Primary symbols explanation
In figure: 1. burner nozzles；2. reflecting plate；3. light source；4. the first revetment；5. light drop point；6. the second revetment.
Specific embodiment
The technical program is described in further detail with reference to the accompanying drawings and embodiments.
A kind of corner tangential firing device spout level angle measurement method, as shown in Figure 1, being sprayed in boiler furnace inner burner
Mouth 1 arranges reflecting plate 2, and reflecting plate 2 is parallel with 1 place plane of burner nozzle, arranges in 1 burner hearth diagonal position of burner nozzle
Light source 3 emits light using light source 3, falls on the first revetment 4 after the reflection of reflecting plate 2；
Distance between light drop point 5 and the second revetment 6 is measured, burner nozzle 1 and the second revetment 6 are calculated by arctan function
Between angle；
Steps are as follows for angle calcu-lation:
Step 1,4 length a of the first revetment is obtained；
Step 2, the distance between burner position and the first revetment 4 b are obtained；
Step 3, distance c between light drop point 5 and the second revetment 6 is obtained；
Step 4, the angle between burner nozzle 1 and the second revetment 6 is calculated by following formula:
α=(arctan(c/b)+arctan(a/b))/2
Angle of the α between burner nozzle 1 and the second revetment 6, arctan is arctan function.
In use, arranging multiple burner nozzles according to actual needs, burner nozzle is calculated one by one according to the method described above
Angle between revetment.
Embodiment 1
The angle between burner nozzle (1) and the second revetment (6) is calculated by arc cotangent function, steps are as follows for calculating:
Step 1, the first revetment (4) length a is obtained；
Step 2, the distance between burner position and the first revetment (4) b are obtained；
Step 3, distance c between light drop point (5) and the second revetment (6) is obtained；
Step 4, the angle between burner nozzle (1) and the second revetment (6) is calculated by following formula:
α=(arccot(b/c)+arccot(b/a))/2
Angle of the α between burner nozzle (1) and the second revetment (6), arccot are arc cotangent function.
In use, arranging multiple burner nozzles according to actual needs, burner nozzle is calculated one by one according to the method described above
Angle between revetment.
Embodiment 2
The angle between burner nozzle (1) and the second revetment (6) is calculated by arcsin function, steps are as follows for calculating:
Step 1, the first revetment (4) length a is obtained；
Step 2, it obtains and calculates the distance between burner position and light source (3) d；
Step 3, distance c between light drop point (5) and the second revetment (6) is obtained；
Step 4, distance e between burner position and light drop point (5) is obtained；
Step 5, the angle between burner nozzle (1) and the second revetment (6) is calculated by following formula:
α=(arcsin(c/e)+arcsin(a/d))/2
Angle of the α between burner nozzle (1) and the second revetment (6), arcsin is arcsin function.
In use, arranging multiple burner nozzles according to actual needs, burner nozzle is calculated one by one according to the method described above
Angle between revetment.
Embodiment 3
The angle between burner nozzle (1) and the second revetment (6) is calculated by inverse cosine function, steps are as follows for calculating:
Step 1, the distance between burner position and the first revetment (4) b are obtained；
Step 2, the distance between burner position and light source (3) d are obtained；
Step 3, the distance between burner position and light drop point (5) e are obtained；
Step 4, the angle between burner nozzle (1) and the second revetment (6) is calculated by following formula:
α=(arccos(b/d)+arccos(b/e))/2
Angle of the α between burner nozzle (1) and the second revetment (6), arccos is inverse cosine function.
In use, arranging multiple burner nozzles according to actual needs, burner nozzle is calculated one by one according to the method described above
Angle between revetment.
The corner tangential firing device spout level angle measurement method that the technical program provides, after light reflection positioning
Measurement distance calculates angle, by longer light path be accurately exaggerated angle can measured amount, and greatly reduce opposite survey
Measure error；Light source and reflecting plate are easy to obtain；Laser and reflecting plate are two independent components, and execute-in-place is convenient；Laser
Device flexible arrangement, scene is easy to implement, easy to be flexible, low in cost.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (6)
1. a kind of corner tangential firing device spout level angle measurement method, it is characterised in that:
It is applicable in one kind mechanism；
The class formation is included in burner nozzle (1) equipped with reflecting plate (2), the reflecting plate (2) and burner nozzle (1) place
Plane is parallel, and burner nozzle (1) diagonal position is equipped with light source (3), and light source (3) the transmitting light is through reflecting plate (2)
It is fallen in after reflection on the first revetment (4)；
Measure distance between light drop point (5) and the second revetment (6) again, by arctan function calculate burner nozzle (1) with
Angle between second revetment (6)；
Steps are as follows for the angle calcu-lation:
Step 1, the first revetment (4) length a is obtained；
Step 2, the distance between burner position and the first revetment (4) b are obtained；
Step 3, distance c between light drop point (5) and the second revetment (6) is obtained；
Step 4, the angle between burner nozzle (1) and the second revetment (6) is calculated by following formula:
α=(arctan(c/b)+arctan(a/b))/2
Angle of the α between burner nozzle (1) and the second revetment (6), arctan is arctan function.
2. corner tangential firing device spout level angle measurement method according to claim 1, it is characterised in that: by anti-
Cotangent calculates the angle between burner nozzle (1) and the second revetment (6), and steps are as follows:
Step 1, the first revetment (4) length a is obtained；
Step 2, the distance between burner position and the first revetment (4) b are obtained；
Step 3, distance c between light drop point (5) and the second revetment (6) is obtained；
Step 4, the angle between burner nozzle (1) and the second revetment (6) is calculated by following formula:
α=(arccot(b/c)+arccot(b/a))/2
Angle of the α between burner nozzle (1) and the second revetment (6), arccot are arc cotangent function.
3. corner tangential firing device spout level angle measurement method according to claim 1, it is characterised in that: by anti-
SIN function calculates the angle between burner nozzle (1) and the second revetment (6), and steps are as follows:
Step 1, the first revetment (4) length a is obtained；
Step 2, it obtains and calculates the distance between burner position and light source (3) d；
Step 3, distance c between light drop point (5) and the second revetment (6) is obtained；
Step 4, distance e between burner position and light drop point (5) is obtained；
Step 5, the angle between burner nozzle (1) and the second revetment (6) is calculated by following formula:
α=(arcsin(c/e)+arcsin(a/d))/2
Angle of the α between burner nozzle (1) and the second revetment (6), arcsin is arcsin function.
4. corner tangential firing device spout level angle measurement method according to claim 1, it is characterised in that: by anti-
Cosine function calculates the angle between burner nozzle (1) and the second revetment (6), and steps are as follows:
Step 1, the distance between burner position and the first revetment (4) b are obtained；
Step 2, the distance between burner position and light source (3) d are obtained；
Step 3, the distance between burner position and light drop point (5) e are obtained；
Step 4, the angle between burner nozzle (1) and the second revetment (6) is calculated by following formula:
α=(arccos(b/d)+arccos(b/e))/2
Angle of the α between burner nozzle (1) and the second revetment (6), arccos is inverse cosine function.
5. corner tangential firing device spout level angle measurement method according to claim 1, it is characterised in that: the light
Source (3) is monochromatic light source.
6. according to any corner tangential firing device spout level angle measurement method of Claims 1-4, feature exists
In: the burner nozzle (1) is multiple.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629565.0A CN109596071A (en) | 2018-12-29 | 2018-12-29 | A kind of corner tangential firing device spout level angle measurement method |
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| CN201811629565.0A CN109596071A (en) | 2018-12-29 | 2018-12-29 | A kind of corner tangential firing device spout level angle measurement method |
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| CN201811629565.0A Pending CN109596071A (en) | 2018-12-29 | 2018-12-29 | A kind of corner tangential firing device spout level angle measurement method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706875A (en) * | 2020-06-29 | 2020-09-25 | 国网山西省电力公司电力科学研究院 | Pseudo tangential circle diameter measuring device for four-corner tangential coal-fired boiler |
| CN113958946A (en) * | 2021-11-08 | 2022-01-21 | 华电电力科学研究院有限公司 | Burner angle adjustment and deviation determination method and angle fine adjustment burner |
| WO2022156219A1 (en) * | 2021-01-19 | 2022-07-28 | 西安热工研究院有限公司 | Device for measuring installation angle of boiler burner |
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|---|---|---|---|---|
| DE2407065A1 (en) * | 1974-02-14 | 1975-08-21 | Precitec Gmbh | Flame cutting device - has an electrode for capacitive distance measurement between burner nozzle and workpiece |
| GB1553826A (en) * | 1975-08-21 | 1979-10-10 | Babcock & Wilcox Ltd | Apparatus for testing a member having a plurality of similar bores |
| CN103234484A (en) * | 2013-04-11 | 2013-08-07 | 国家电网公司 | Nozzle angle and tangent circle measuring method for four-corner-tangential spraying and combusting boiler |
| CN107179059A (en) * | 2016-03-11 | 2017-09-19 | 罗伯特·博世有限公司 | Method and light-emitting device for determining angle error |
| CN207585541U (en) * | 2017-10-05 | 2018-07-06 | 董志强 | Boiler burner quadrangle tangential circle measuring device |
-
2018
- 2018-12-29 CN CN201811629565.0A patent/CN109596071A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2407065A1 (en) * | 1974-02-14 | 1975-08-21 | Precitec Gmbh | Flame cutting device - has an electrode for capacitive distance measurement between burner nozzle and workpiece |
| GB1553826A (en) * | 1975-08-21 | 1979-10-10 | Babcock & Wilcox Ltd | Apparatus for testing a member having a plurality of similar bores |
| CN103234484A (en) * | 2013-04-11 | 2013-08-07 | 国家电网公司 | Nozzle angle and tangent circle measuring method for four-corner-tangential spraying and combusting boiler |
| CN107179059A (en) * | 2016-03-11 | 2017-09-19 | 罗伯特·博世有限公司 | Method and light-emitting device for determining angle error |
| CN207585541U (en) * | 2017-10-05 | 2018-07-06 | 董志强 | Boiler burner quadrangle tangential circle measuring device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706875A (en) * | 2020-06-29 | 2020-09-25 | 国网山西省电力公司电力科学研究院 | Pseudo tangential circle diameter measuring device for four-corner tangential coal-fired boiler |
| CN111706875B (en) * | 2020-06-29 | 2023-01-24 | 国网山西省电力公司电力科学研究院 | Device for measuring diameter of imaginary tangent circle of four-corner tangent circle coal-fired boiler |
| WO2022156219A1 (en) * | 2021-01-19 | 2022-07-28 | 西安热工研究院有限公司 | Device for measuring installation angle of boiler burner |
| CN113958946A (en) * | 2021-11-08 | 2022-01-21 | 华电电力科学研究院有限公司 | Burner angle adjustment and deviation determination method and angle fine adjustment burner |
| CN113958946B (en) * | 2021-11-08 | 2023-05-26 | 华电电力科学研究院有限公司 | Combustor angle adjustment and deviation determination method and angle fine adjustment combustor |
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Application publication date: 20190409 |