CN113865877A - Laser emission probe installation device suitable for combustion monitoring of gas turbine - Google Patents
Laser emission probe installation device suitable for combustion monitoring of gas turbine Download PDFInfo
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- CN113865877A CN113865877A CN202111249417.8A CN202111249417A CN113865877A CN 113865877 A CN113865877 A CN 113865877A CN 202111249417 A CN202111249417 A CN 202111249417A CN 113865877 A CN113865877 A CN 113865877A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 79
- 239000000523 sample Substances 0.000 title claims abstract description 70
- 238000012544 monitoring process Methods 0.000 title claims abstract description 60
- 238000009434 installation Methods 0.000 title description 6
- 230000003287 optical effect Effects 0.000 claims abstract description 59
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 238000005259 measurement Methods 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 238000013016 damping Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 29
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a laser emission probe mounting device suitable for combustion monitoring of a gas turbine, which comprises an adjusting screw, a spring, an equipment protection base, an equipment cooling device and a mounting base. The device indirectly changes the included angle and the relative position between the laser emission probe and the laser receiving equipment by utilizing an adjusting screw and a mobile equipment cooling device, realizes the light path adjustment of an optical monitoring system, and ensures that the optical signal of the laser emission probe can be effectively received by the laser receiving equipment; when the combustion chamber component vibrates, the spring can be used for changing and reducing the influence of the vibration of the combustion chamber component on the measurement accuracy of the optical monitoring system.
Description
Technical Field
The invention belongs to the technical field of gas turbines, and particularly relates to a laser emission probe mounting device suitable for combustion monitoring of a gas turbine.
Background
At present, gas turbine combustion flow field diagnosis and performance evaluation are receiving more and more attention, and optical-based gas turbine combustion monitoring technology and system are receiving more and more attention. However, the mounting positions of the laser emission probe and the receiving device fixing device of the optical monitoring system cannot be adjusted at will due to the limited mounting space of the combustion chamber of the gas turbine, so that after the laser emission probe and the receiving device of the optical combustion monitoring system are fixed and mounted, the receiving device cannot receive the laser signal emitted by the laser emission probe, and the optical combustion monitoring system is not operated normally. The optical path deviation of the optical monitoring system is caused by the relative position change of the optical transmitting end and the receiving equipment due to the processing error of the fixing device, the installation error of the laser transmitting probe and the receiving equipment of the optical combustion monitoring system, or the position deviation of the laser transmitting probe and the receiving equipment caused by the vibration of components and the like. The general solutions to the above problems are: redesigning the fixing device for processing the laser emission probe and the receiving equipment, or dismantling and reinstalling the fixing device for the laser emission probe and the receiving equipment of the monitoring system, thereby completing the rearrangement and adjustment of the optical path of the optical monitoring system.
Disclosure of Invention
The invention provides a laser emission probe mounting device suitable for combustion monitoring of a gas turbine, which can slightly adjust the positions of a laser emission probe and a receiving device, adjust the relative positions of the laser emission probe and the laser receiving device, quickly complete light path adjustment on the premise of not dismounting and remounting an optical monitoring transmitting end and the receiving device, and reduce the influence of the vibration of combustion chamber components on an optical combustion monitoring system by using the damping effect of a spring.
The invention is realized by adopting the following technical scheme:
a laser emission probe mounting device suitable for combustion monitoring of a gas turbine comprises an adjusting screw, a spring, an equipment protection base, an equipment cooling device and a mounting base;
the spring is positioned between the mounting base and the equipment protection base and is respectively connected with the mounting base and the equipment protection base; the equipment cooling device is arranged in the equipment protection base and can move; the adjusting screw is fixed on the equipment protecting base, and the head of the adjusting screw is in contact with the equipment cooling device; the laser emission probe of the optical monitoring system is installed in the equipment cooling device.
The invention has the further improvement that in the using process, the laser emission probe arranged in the equipment cooling device is indirectly moved by rotating the adjusting screw and moving the equipment cooling device, and the included angle and the relative position between the laser emission probe and the laser receiving equipment are changed, so that the optical path adjustment of the optical monitoring system is realized, and the optical signal of the laser emission probe can be effectively received by the laser receiving equipment.
The invention is further improved in that, when the combustion chamber component vibrates, the influence of the vibration of the combustion chamber component on the measurement accuracy of the optical monitoring system is reduced by changing and reducing the vibration of the combustion chamber component transmitted from the mounting base to the equipment protection base and the laser emission probe by using the spring.
The invention is further improved in that 4 adjusting screws are uniformly arranged on the upper, lower, left and right sides of the equipment protection base, and the laser emission probe can deflect upwards, downwards, leftwards and rightwards by adjusting the adjusting screws at different positions, so that the optical path of the optical monitoring system can be adjusted.
The invention is further improved in that a plurality of springs are arranged between the equipment protection base and the equipment cooling device according to the vibration characteristics of the combustion chamber component, the damping effect of the springs is fully utilized, the vibration of the combustion chamber component transmitted from the mounting base to the equipment protection base and the laser emission probe is changed and reduced, and the influence of the vibration of the combustion chamber component on the measurement accuracy of the optical monitoring system is reduced.
The invention is further improved in that a high-temperature-resistant quartz glass is arranged on the mounting base.
The invention is further improved in that the high-temperature-resistant quartz glass is in a convex shape.
The invention is further improved in that a micro level gauge and a micro vertical gauge are arranged on the equipment cooling device, and the levelness and the verticality between the optical probe and the measurement flow field can be reflected through the micro level gauge and the micro vertical gauge when the adjusting screw rotates.
The invention has at least the following beneficial technical effects:
the laser emission probe mounting device suitable for combustion monitoring of the gas turbine can adjust the horizontal and vertical positions of the laser emission probe in a small range, adjust the relative position of the laser emission probe and the laser receiving equipment, conveniently and quickly complete light path adjustment on the premise of not dismounting and remounting an optical monitoring emitting end and the receiving equipment, and reduce the application difficulty and mounting complexity of an optical combustion monitoring technology and system on a combustion chamber of the gas turbine.
The laser emission probe mounting device suitable for combustion monitoring of the gas turbine can change and reduce the vibration of the combustion chamber component transmitted from the mounting base to the equipment protection base and the laser emission probe by utilizing the damping characteristic of the spring, and reduce the influence of the vibration of the combustion chamber component on the measurement of an optical monitoring system.
According to the laser emission probe mounting device suitable for combustion monitoring of the gas turbine, each component can be independently detached and replaced, and the laser emission probe and the receiving equipment of the optical combustion monitoring system can be conveniently mounted and maintained.
According to the laser emission probe mounting device suitable for combustion monitoring of the gas turbine, the relative positions of the laser emission probe and the receiving equipment of the optical combustion monitoring system can be adjusted through the upper adjusting screw, the lower adjusting screw, the left adjusting screw and the right adjusting screw, and the operation is simple.
Furthermore, the convex high-temperature-resistant quartz glass arranged on the mounting base can avoid direct contact between high-temperature gas in the combustion chamber and a laser emission probe and receiving equipment of the optical combustion chamber monitoring system, protect a laser signal emission end or the receiving equipment of the optical monitoring system from being burnt by high-temperature gas, and avoid the quartz glass from falling into an inner flow field of the combustion chamber of the gas turbine.
Furthermore, a micro level gauge and a micro vertical gauge are arranged on the equipment cooling device, and when the adjusting screw rotates, the levelness and the verticality between the optical probe and the measurement flow field can be reflected through the micro level gauge and the micro vertical gauge.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
FIG. 2 is a schematic diagram of an embodiment of the present invention.
Description of reference numerals:
1. an adjusting screw; 2. a spring; 3. an equipment protection base; 4. a device cooling means; 5. mounting a base; 51 high temperature resistant quartz glass.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the invention is not limited to these embodiments.
As shown in FIG. 1, the laser emission probe mounting device suitable for combustion monitoring of a gas turbine provided by the invention comprises an adjusting screw 1, a spring 2, an equipment protection base 3, an equipment cooling device 4, a mounting base 5 and high-temperature-resistant quartz glass 51. Wherein, the mounting base 5 is fixed on the wall surface of the combustion chamber; the spring 2 is positioned between the equipment protection base 3 and the installation base 5, and the elastic connection between the equipment protection base 3 and the installation base 5 is ensured; the equipment cooling device 4 is arranged inside the equipment protection base 3 and can move in the equipment protection base in a small range; adjusting screw 1 is connected with equipment protection base through the screw hole, and adjusting screw 1's head and equipment cooling device 4 contact, through wrench movement adjusting screw 1, can adjust the position of equipment cooling device 4.
In the working process, a laser emission probe of the optical combustion monitoring system is arranged in the equipment cooling device 4, so that the laser emission probe can be prevented from being burnt by high-temperature and high-pressure air at the outlet of the air compressor; when the laser light path of the optical combustion monitoring system needs to be adjusted, the adjusting screw 1 is rotated, the adjusting screw 1 drives the equipment cooling device 4 to move and deflect until laser emitted by a laser emission probe installed in the equipment cooling device 4 can be effectively received by laser receiving equipment installed on the other side of the combustion chamber; the spring 2 can effectively change and reduce the vibration of the laser emission probe transmitted to the interior of the equipment cooling device 4 by the mounting device 5, reduce the laser jitter and reduce the influence of the vibration of the combustion chamber part on the measurement of the optical monitoring system.
Preferably, 4 adjusting screws 1 can be uniformly arranged on the upper, lower, left and right sides of the equipment protection base 3, and the positions of the equipment cooling devices 4 are adjusted by twisting the adjusting screws 1 at different positions, so that the laser emission probe can deflect upwards, downwards, leftwards and rightwards, and the optical path of the optical combustion monitoring system can be adjusted.
Preferably, the special spring 2 can be designed according to the vibration characteristics of the combustion chamber part, and the damping effect of the spring is utilized to reduce the vibration transmitted to the laser emission probe by the combustion chamber part, thereby improving the measurement accuracy of the optical monitoring system.
Preferably, the mounting base 5 can be provided with a high-temperature resistant quartz glass 51 similar to a Chinese character 'tu'; the quartz glass 51 can isolate high-temperature fuel gas in the combustion chamber, so that the laser signal transmitting end of the optical monitoring system is prevented from being directly contacted with the high-temperature fuel gas in the combustion chamber to be burnt; in addition, the convex-shaped quartz glass 51 can prevent the quartz glass from falling into the flow field to be measured of the combustion chamber of the gas turbine, and prevent the combustion chamber parts from being damaged due to the falling of the quartz glass.
Preferably, a micro level gauge and a micro vertical gauge can be arranged on the equipment cooling device 4, and when the adjusting screw 1 rotates, the levelness and the verticality between the optical probe and the measurement flow field can be reflected through the micro level gauge and the micro vertical gauge, so that reference is provided for the optical path adjustment of the optical combustion monitoring system.
Examples
As shown in fig. 2, the mounting base 5 in the laser emission probe mounting protection device of the gas turbine optical combustion monitoring system is fixed on the wall surface of the combustion chamber, and the end surface of the high temperature resistant quartz glass 51, which is in contact with the high temperature gas, is flush with the inner wall surface of the combustion chamber; the equipment protection base 3 is connected with the installation base 5 through 4 uniformly arranged springs 2; the equipment cooling device 4 is arranged in the equipment protection base 3 and can move in the equipment protection base 3 in a small range; the adjusting screw 1 is connected with the equipment protection base through a threaded hole, the head of the adjusting screw 1 is in contact with the equipment cooling device 4, and the position of the equipment cooling device 4 can be adjusted by twisting the adjusting screw 1; the laser emission probe is installed in the equipment cooling device 4. When the optical path adjusting device works and needs to adjust the optical path of the optical combustion monitoring system of the combustion chamber of the gas turbine, the adjusting screw 1 is rotated, the adjusting screw 1 drives the equipment cooling device 4 and the laser emission probe to move and deflect, and then laser and angles emitted from the laser emission probe are changed until the laser receiving equipment can effectively receive laser signals emitted by the laser probe. When the combustion chamber operates, the equipment cooling device 4 is filled with flowing cooling medium all the time, so that the laser emission probe can work normally under the high-temperature and high-pressure air at the outlet of the gas compressor; the high-temperature resistant quartz glass 51 isolates the high-temperature gas in the combustion chamber from the equipment cooling device 4, so that the high-temperature gas is prevented from ablating the equipment cooling device 4 and the laser emission probe; the spring 2 can reduce the vibration of the combustion chamber component by utilizing the damping characteristic of the spring, and the influence of the vibration of the combustion chamber component on the optical combustion monitoring and diagnosing system can be reduced.
Preferably, the structure of the spring 2 can be designed according to the vibration characteristics of the combustion chamber component in the operation process of the gas turbine, and the spring 2 can normally work under the action of high-temperature and high-pressure air of a gas turbine compressor; when the combustion chamber component vibrates, the special damping effect of the spring 2 is utilized to reduce the vibration transmitted to the laser emission probe by the combustion chamber component, and the influence of the vibration of the combustion chamber component on the measurement of the optical combustion monitoring system is reduced.
Preferably, the mounting base 5 can be provided with a high-temperature resistant quartz glass 51 similar to a Chinese character 'tu'; the thickness of the high-temperature-resistant quartz glass 51 is not less than 20mm, so that high-temperature gas in the combustion chamber can be effectively isolated, and the laser emission probe of the optical monitoring system and the equipment cooling device 4 are prevented from being directly contacted with the high-temperature gas in the combustion chamber and being burnt; in addition, the high temperature resistant quartz glass 51 with the convex shape can prevent the high temperature resistant quartz glass 51 from falling into a flow field to be measured of the combustion chamber of the gas turbine, and avoid damage of combustion chamber components caused by the falling of the quartz glass.
Preferably, a micro level gauge and a micro vertical gauge can be arranged on the equipment cooling device 4, and when the adjusting screw 1 rotates, the levelness and the verticality between the optical probe and the measuring flow field can be reflected through the micro level gauge and the micro vertical gauge.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A laser emission probe mounting device suitable for combustion monitoring of a gas turbine is characterized by comprising an adjusting screw, a spring, an equipment protection base, an equipment cooling device and a mounting base;
the spring is positioned between the mounting base and the equipment protection base and is respectively connected with the mounting base and the equipment protection base; the equipment cooling device is arranged in the equipment protection base and can move; the adjusting screw is fixed on the equipment protecting base, and the head of the adjusting screw is in contact with the equipment cooling device; the laser emission probe of the optical monitoring system is installed in the equipment cooling device.
2. The laser emission probe mounting device suitable for combustion monitoring of a gas turbine as claimed in claim 1, wherein in use, the laser emission probe mounted in the device cooling device is indirectly moved by rotating the adjusting screw and moving the device cooling device, so as to change the included angle and the relative position between the laser emission probe and the laser receiving device, thereby realizing the optical path adjustment of the optical monitoring system and ensuring that the optical signal of the laser emission probe can be effectively received by the laser receiving device.
3. The laser emission probe mounting device for gas turbine combustion monitoring as claimed in claim 1, wherein the effect of combustion part vibration on the measurement accuracy of the optical monitoring system is reduced by using the spring to change and reduce the combustion part vibration transmitted from the mounting base to the equipment protecting base and the laser emission probe when the combustion part vibrates.
4. The laser emission probe mounting device suitable for combustion monitoring of a gas turbine as claimed in claim 1, wherein 4 adjusting screws are uniformly arranged on the upper, lower, left and right sides of the equipment protection base, and the adjusting screws at different positions are adjusted to realize upward, downward, leftward and rightward deflection of the laser emission probe, thereby realizing adjustment of the optical path of the optical monitoring system.
5. The laser emission probe mounting device suitable for combustion monitoring of a gas turbine as claimed in claim 1, wherein a plurality of springs are disposed between the equipment protection base and the equipment cooling device according to the vibration characteristics of the combustor components, and the damping effect of the springs is fully utilized to change and reduce the vibration of the combustor components transmitted from the mounting base to the equipment protection base and the laser emission probe, thereby reducing the influence of the vibration of the combustor components on the measurement accuracy of the optical monitoring system.
6. The laser emission probe mounting device suitable for gas turbine combustion monitoring as claimed in claim 1, wherein the mounting base is disposed with high temperature resistant quartz glass.
7. The laser emission probe mounting device suitable for gas turbine combustion monitoring as recited in claim 6, wherein the high temperature resistant quartz glass is in a convex shape.
8. The laser emission probe mounting device suitable for gas turbine combustion monitoring as claimed in claim 1, wherein a micro level gauge and a micro vertical gauge are arranged on the equipment cooling device, and when the adjusting screw rotates, the levelness and the verticality between the optical probe and the measurement flow field can be reflected through the micro level gauge and the micro vertical gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111249417.8A CN113865877A (en) | 2021-10-26 | 2021-10-26 | Laser emission probe installation device suitable for combustion monitoring of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111249417.8A CN113865877A (en) | 2021-10-26 | 2021-10-26 | Laser emission probe installation device suitable for combustion monitoring of gas turbine |
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| Publication Number | Publication Date |
|---|---|
| CN113865877A true CN113865877A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111249417.8A Pending CN113865877A (en) | 2021-10-26 | 2021-10-26 | Laser emission probe installation device suitable for combustion monitoring of gas turbine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201974941U (en) * | 2011-04-06 | 2011-09-14 | 丽水市海威光控科技有限公司 | Laser transmitter with probe fine adjustment function |
| US20140053568A1 (en) * | 2012-08-23 | 2014-02-27 | Clifford Hatcher, JR. | System and method for on line monitoring within a gas turbine combustor section |
| CN106289055A (en) * | 2015-06-05 | 2017-01-04 | 并木精密宝石株式会社 | Gauge in optical profile type |
| CN109632664A (en) * | 2018-12-14 | 2019-04-16 | 中国航空工业集团公司北京长城航空测控技术研究所 | It is a kind of for installing the device of optic probe under high temperature and vibration condition |
| CN110954501A (en) * | 2019-12-13 | 2020-04-03 | 中国航空工业集团公司北京长城航空测控技术研究所 | High-temperature-resistant tunable laser absorption spectrum probe structure |
| CN216746791U (en) * | 2021-10-26 | 2022-06-14 | 华能国际电力股份有限公司 | Laser emission probe installation device suitable for combustion monitoring of gas turbine |
-
2021
- 2021-10-26 CN CN202111249417.8A patent/CN113865877A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201974941U (en) * | 2011-04-06 | 2011-09-14 | 丽水市海威光控科技有限公司 | Laser transmitter with probe fine adjustment function |
| US20140053568A1 (en) * | 2012-08-23 | 2014-02-27 | Clifford Hatcher, JR. | System and method for on line monitoring within a gas turbine combustor section |
| CN106289055A (en) * | 2015-06-05 | 2017-01-04 | 并木精密宝石株式会社 | Gauge in optical profile type |
| CN109632664A (en) * | 2018-12-14 | 2019-04-16 | 中国航空工业集团公司北京长城航空测控技术研究所 | It is a kind of for installing the device of optic probe under high temperature and vibration condition |
| CN110954501A (en) * | 2019-12-13 | 2020-04-03 | 中国航空工业集团公司北京长城航空测控技术研究所 | High-temperature-resistant tunable laser absorption spectrum probe structure |
| CN216746791U (en) * | 2021-10-26 | 2022-06-14 | 华能国际电力股份有限公司 | Laser emission probe installation device suitable for combustion monitoring of gas turbine |
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