CN112730137A - Material test integrated platform system of generator set and test method thereof - Google Patents
Material test integrated platform system of generator set and test method thereof Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/26—Investigating twisting or coiling properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N2203/0021—Torsional
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
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Abstract
The invention discloses a material test integrated platform system of a generator set and a test method thereof. By adopting the material test integrated platform system of the generator set and the test method thereof, each performance test module can simulate a plurality of parameters in real working conditions, and accurate mechanical performance parameters are obtained through tests; the system integrates a plurality of performance test modules, and can test to obtain various mechanical properties based on a plurality of parameters in real working conditions; meanwhile, the system adopts modularized arrangement, can set performance test modules meeting the requirements of users according to the needs, and can also increase more performance test modules in due time according to the needs, thereby providing support for industrial upgrading.
Description
Technical Field
The invention relates to the technical field of material tests, in particular to a material test integrated platform system of a generator set and a test method thereof.
Background
The coal-fired power generation technology, especially the 650 ℃/700 ℃ coal-fired power generation technology, can obviously improve the power generation efficiency, reduce the coal consumption and the pollutant discharge, has important strategic significance and practical application value to China, but the unit sets higher requirements on the material performance of key parts. At present, research, development, analysis and application evaluation of high-temperature heat-resistant materials of power stations at home and abroad are all based on mechanical damage performance experiments carried out in the form of a high-temperature furnace of a laboratory electric heating and testing machine, so that various test data and parameters are obtained. And for the experimental platform of the high-temperature material state and the design structure under the actual working condition of the thermal generator set, the experimental platform is manufactured based on a certain specific index and a specific material under the specific environment and parameter conditions, and the completion of the project experiment means the end of the platform.
The above situation causes a great technical obstacle to the development and production of high-performance materials and parts to engineering application and to acquiring some key data during the design of the machine group.
Disclosure of Invention
The invention discloses a material test integrated platform system of a generator set and a test method thereof, aiming at solving the problem that the existing test platform is manufactured based on a certain specific index and a specific material under the specific environment and parameter condition and can not obtain the material parameters of a plurality of indexes based on a plurality of parameters in the real working condition.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a generating set's material test integration platform system, includes test vapour source, rotation test module, thermal fatigue test module and anti lax test module, rotate test module thermal fatigue test module and anti lax test module respectively with the test vapour source is connected, the test vapour source with generating set's steam conduit is connected.
The material test integrated platform system further comprises a steam parameter adjusting device, and the steam parameter adjusting device is connected with the test steam source.
The material test integrated platform system further comprises an exhaust system, wherein the exhaust system comprises an exhaust collecting device, and the exhaust collecting device is connected with the steam pipeline or the steam parameter adjusting device to form a steam circulating system.
The material test integrated platform system further comprises a monitoring device, and the monitoring device is respectively connected with the rotation test module, the thermal fatigue test module, the anti-relaxation test module and the test steam source.
The material test integrated platform system further comprises a steam exhaust system, and the steam exhaust system comprises a steam exhaust collecting device and a condensing device.
The rotation test module comprises a motor, and the motor is used for being connected with a test part and driving the test part to rotate.
The thermal fatigue test module comprises a temperature change control device, and the temperature change control device is used for controlling the cold and hot alternation of the steam of the thermal fatigue test module.
The anti-relaxation test module comprises a pretightening force applying device, and the pretightening force applying device is connected with the test component and is used for applying pretightening force to the test component.
The material test integrated platform system further comprises an auxiliary heating device, and the auxiliary heating device is used for assisting in heating the steam temperature of the rotation test module and/or the anti-relaxation test module.
The material test integrated platform system further comprises a closed containing cavity, and the rotation test module, the thermal fatigue test module and the anti-relaxation test module are arranged in the closed containing cavity.
According to the testing method of the material testing integrated platform system, steam is extracted from a steam pipeline of a generator set, a steam parameter adjusting device adjusts steam parameters, and then the steam parameters respectively enter a rotation testing module, a thermal fatigue testing module and an anti-relaxation testing module;
the test part rotates at a high speed in the rotation test module to verify the torsional fatigue performance of the test material;
the test part is subjected to cold-hot alternation in the thermal fatigue test module to verify the thermal fatigue performance of the test material;
the test component carries out pre-tightening force loading in the anti-relaxation test module to verify the relaxation performance of the test material;
and the steam is discharged from the rotation test module, the thermal fatigue test module and the anti-relaxation test module and then returns to the steam pipeline or the steam parameter adjusting device for cyclic utilization.
The technical scheme adopted by the invention can achieve the following beneficial effects: by adopting the material test integrated platform system of the generator set and the test method thereof, each performance test module can simulate a plurality of parameters in real working conditions, and accurate mechanical performance parameters are obtained through tests; the system integrates a plurality of performance test modules, and can test to obtain various mechanical properties based on a plurality of parameters in real working conditions; meanwhile, the system adopts modularized arrangement, can set performance test modules meeting the requirements of users according to the needs, and can also increase more performance test modules in due time according to the needs, thereby providing support for industrial upgrading.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural connection diagram of a material testing integrated platform system of a generator set according to the present invention;
fig. 2 is a control schematic diagram of a testing method of the material testing integrated platform system of the generator set.
Description of reference numerals:
1 test steam Source
2 rotation test module
3 thermal fatigue test module
4 anti-relaxation test module
5 generating set
6 steam parameter adjusting device
7 exhaust steam collecting device
8 monitoring device
9 auxiliary heating device
10 electric motor
11 temperature changing control device
12 pretightening force applying device
13 closed cavity
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1-2, the invention provides a material test integrated platform system of a generator set, which comprises a test steam source 1, a rotation test module 2, a thermal fatigue test module 3 and an anti-relaxation test module 4, wherein the rotation test module 2, the thermal fatigue test module 3 and the anti-relaxation test module 4 are respectively connected with the test steam source 1, and the test steam source 1 is connected with a steam pipeline of the generator set 5. The test steam source 1 can be connected with a boiler reheating steam pipeline of the generator set 5, and actual steam is led in from the operation host unit and guided to the rotation test module 2, the thermal fatigue test module 3 and the anti-relaxation test module 4, so that the modules can be tested in the steam environment of the generator set 5.
By adopting the material test integrated platform system of the generator set, each performance test module can simulate a plurality of parameters (such as different temperatures and different pressures) in real working conditions, and accurate mechanical performance parameters are obtained through tests; the system integrates a plurality of performance test modules, and can test to obtain various mechanical properties based on a plurality of parameters in real working conditions; meanwhile, the system adopts modularized arrangement, can set performance test modules meeting the requirements of users according to the needs, and can also increase more performance test modules in due time according to the needs, thereby providing support for industrial upgrading.
The material test integrated platform system further comprises a steam parameter adjusting device 6, the steam parameter adjusting device 6 is connected with the test steam source 1, the steam parameter adjusting device 6 can be arranged between the steam pipeline and the test steam source 1, and the steam parameter adjusting device 6 can also be only connected with the test steam source 1 to adjust parameters (such as temperature and pressure) of steam in the test steam source 1. Steam parameter adjusting device 6 can carry out further adjustment to the actual steam of introducing from operation host computer group, can further heat the temperature that improves steam and increase the pressure of steam, satisfies different regional temperature control requirements, makes subsequent rotation test module 2, thermal fatigue test module 3 and anti lax test module 4 experimental acquisition mechanical properties under the parameter of difference.
The material test integrated platform system also comprises an exhaust system, wherein the exhaust system comprises an exhaust collecting device 7, the exhaust collecting device 7 is connected with a steam pipeline or a steam parameter adjusting device 6 to form a steam circulating system, the exhaust collecting device 7 is connected with the steam pipeline, steam can enter the running of a unit, the exhaust collecting device 7 is connected with the steam parameter adjusting device 6, and the steam can enter the system to be further utilized after the parameters are adjusted, so that the steam can be recycled, and the waste of heat in high-temperature gas is avoided.
The material test integrated platform system further comprises a monitoring device 8, and the monitoring device 8 is respectively connected with the rotation test module 2, the thermal fatigue test module 3, the anti-relaxation test module 4 and the test steam source 1. The monitoring system can be used for monitoring test temperature, vacuum, heating rate and temperature rise and drop of test components, thermal stress of thermal components and the like, and the monitoring device 8 can comprise various sensors and control elements.
In another embodiment of the present invention, the material testing integrated platform system further includes an exhaust system, and the exhaust system includes an exhaust collecting device 7 and a condensing device. Discharge this system after handling high temperature steam through condensing equipment, can avoid thermal waste in the high temperature gas through condensing equipment with the heat recovery in the high temperature steam.
The rotation test module 2 of the invention comprises a motor 10, and the motor 10 is used for connecting with a test part and driving the test part to rotate. The motor 10 can be a variable frequency motor 10, the variable frequency motor 10 is used for achieving the required rotating speed, the performances of high-temperature torsional fatigue and the like of key components such as a rotor and a blade are verified, a rotating shaft of the motor 10 is connected with a test component, and the rotating shaft is directly or indirectly connected with the test component, so that the rotating speed of the test component is 2000-3000 r/min. Meanwhile, the high-temperature endurance and creep performance of the test parts can be verified, steam in the environment where the test module 2 is located can be heated in an auxiliary mode through the auxiliary heating device 9, and the auxiliary heating device 9 can be an electric heating device or an induction type heating device, so that the test parts are always in a stable temperature atmosphere to perform a torsional fatigue test.
The thermal fatigue test module 3 comprises a temperature-changing control device 11, wherein the temperature-changing control device 11 is used for controlling the cold and hot alternation of steam of the thermal fatigue test module 3, so that a test part is in cold and hot alternation to verify the thermal fatigue performance of the test part. The temperature change control device 11 may include a heating device and a cooling device, the heating device may raise the temperature of the steam, the cooling device may lower the temperature of the steam, or the temperature change control device 11 may change the temperature by changing the pressure, and the temperature change control device 11 may be any device that realizes alternating of heat and cold.
The anti-relaxation test module 4 comprises a pretightening force applying device 12, wherein the pretightening force applying device 12 is connected with the test component and used for applying pretightening force to the test component to verify the relaxation performance of the test component. The pretightening force applying device 12 can apply pretightening force by applying pressure, or can apply pretightening force by elastic clamping, and the pretightening force applying device 12 can be any device applying pretightening force.
The thermal fatigue test module 3 and the anti-relaxation test module 4 can be arranged together, for example, high-temperature steam can be introduced into a cavity, the cavity comprises an upper cover, the upper cover and the cavity are fastened through a fastener, the temperature of the high-temperature steam in the cavity is adjusted, the pressure inside the cavity changes along with the pressure, the acting force of the upper cover on the fastener changes along with the pressure change, the fastener can be subjected to loose and tight pre-tightening force, the fastener is measured and observed, and the like, so that the relaxation performance of the fastener is obtained, meanwhile, the steam temperature in the cavity changes, the cavity and the upper cover are in cold-hot alternation, the cavity and the upper cover are measured and observed, and the like, so that the thermal fatigue performance of the cavity and the upper cover is obtained.
The invention can also expand more performance test modules, for example, can expand the oxidation erosion test module, the oxidation erosion test module includes the spray nozzle, the spray nozzle sprays the high-pressure steam to the test part, thus can obtain the oxidation erosion performance of the test part, temperature and spray pressure in the module can be adjusted.
The material test integrated platform system further comprises an auxiliary heating device 9, wherein the auxiliary heating device 9 is used for auxiliary heating of the steam temperature of the rotation test module 2 and/or the anti-relaxation test module 4. The auxiliary heating device 9 can adopt an electric heating or induction heating mode, so that the rotation test module 2 and/or the anti-relaxation test module 4 can be kept in a stable temperature atmosphere in the test under the same parameter, and the accuracy of the test performance is improved.
The material test integrated platform system also comprises a closed cavity 13, and the rotation test module 2, the thermal fatigue test module 3 and the anti-relaxation test module 4 are arranged in the closed cavity 13. The sealing structure can be sealed by adopting the container property, and high-temperature steam is positioned in the sealed cavity 13, so that the damage to the external environment or objects is avoided.
The system of the invention also comprises a control module, and the steam parameter adjusting device 6, the monitoring device 8, the motor 10, the temperature change control device 11, the pretightening force applying device 12, the auxiliary heating device 9 and the like can be controlled by the control module, so that the adjustment of each parameter can be controlled by the control module.
The invention also provides a test method of the material test integrated platform system, in the test, steam is extracted from a steam pipeline of the generator set 5, a steam parameter adjusting device 6 adjusts steam parameters, and then the steam parameters respectively enter the rotation test module 2, the thermal fatigue test module 3 and the anti-relaxation test module 4;
the test part rotates at a high speed in the rotation test module 2, and the torsional fatigue performance of the test material is verified;
the test part is subjected to cold-hot alternation in the thermal fatigue test module 3, and the thermal fatigue performance of the test material is verified;
the test component carries out pre-tightening force loading in the anti-relaxation test module 4 to verify the relaxation performance of the test material;
and the steam is discharged from the rotation test module 2, the thermal fatigue test module 3 and the anti-relaxation test module 4 and then returns to the steam pipeline or the steam parameter adjusting device 6 for cyclic utilization.
By adopting the test method, each performance test module can simulate a plurality of parameters (such as different temperatures and different pressures) in the real working condition, and the accurate mechanical performance parameters are obtained through the test; the system integrates a plurality of performance test modules, and can test to obtain various mechanical properties based on a plurality of parameters in real working conditions; meanwhile, the system adopts modularized arrangement, can set performance test modules meeting the requirements of users according to the needs, and can also increase more performance test modules in due time according to the needs, thereby providing support for industrial upgrading.
The system and the method thereof can simulate a real service environment, the measured mechanical property is accurate, the environment state is adjustable, the module is expandable, the engineering verification time is shortened, and the technical risk of demonstration engineering is reduced. The system can be used for carrying out various high-temperature mechanical damage tests, 650 ℃/700 ℃ novel material test verification can be carried out through the system, and important operation data and practical experience of 700 ℃ ultra-supercritical materials in actual service environments can be obtained at an accelerated speed, so that design, manufacture, installation and operation experiences are accumulated for construction of demonstration projects, and a solid foundation is laid for construction and demonstration operation of next-generation coal-fired generator sets in China, namely 700 ℃ ultra-supercritical coal-fired generator sets with independent intellectual property rights.
In one embodiment of the invention, a supercritical unit of a certain power plant is adopted, the supercritical unit is put into operation along with the starting of a host unit, steam is extracted from a reheating steam pipeline of a boiler, the steam temperature is 570 ℃, and 20 tons of steam is extracted every day. And the steam temperature is increased to 650-700 ℃ by adopting a steam parameter adjusting device 6. The heated steam for the test respectively enters a rotation test module 2, a thermal fatigue test module 3 and an anti-relaxation test module 4, a test part is driven by a variable frequency motor 10 to rotate at a high speed in the rotation test module 2, the test part can be in a stable temperature atmosphere under the same parameter through an auxiliary heating device 9 to be tested, the test part is in the thermal fatigue test module 3, a temperature change control device 11 adjusts the environmental temperature change of the thermal fatigue test module 3 to enable the thermal fatigue verification part to be in cold and hot alternation, the test part is in the anti-relaxation test module 4 and is subjected to stress loading by a pretightening force applying device 12, and the test part can be in the stable temperature atmosphere under the same parameter through the auxiliary heating device 9 to be tested; the monitoring device 8 monitors the test temperature, the heating rate, the temperature rise and the temperature drop of the test part and the thermal stress of the thermal part. And torsion moment and calculation detection such as loading detection and alarm, acceleration detection and alarm, non-contact stress monitoring, working condition data simulation calculation and the like are also carried out in the test process.
And carrying out testing work such as steam side oxidation, material metallographic examination, hardness test, component wall thickness measurement, nondestructive examination and the like on the test component during the shutdown of the host machine set.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (11)
1. The utility model provides a material test integration platform system of generating set, its characterized in that, includes test vapour source (1), rotates test module (2), thermal fatigue test module (3) and anti test module (4) of relaxing, rotate test module (2) thermal fatigue test module (3) and anti test module (4) of relaxing with test vapour source (1) are connected, test vapour source (1) with the steam conduit of generating set (5) is connected.
2. The material testing integrated platform system according to claim 1, characterized in that it further comprises a steam parameter adjusting device (6), said steam parameter adjusting device (6) being connected to said test steam source (1).
3. The material testing integrated platform system according to claim 2, further comprising an exhaust system, wherein the exhaust system comprises an exhaust collecting device (7), and the exhaust collecting device (7) is connected with the steam pipeline or the steam parameter adjusting device (6) to form a steam circulation system.
4. The material testing integrated platform system according to claim 2, characterized in that the material testing integrated platform system further comprises a monitoring device (8), and the monitoring device (8) is respectively connected with the rotation testing module (2), the thermal fatigue testing module (3), the anti-relaxation testing module (4) and the testing steam source (1).
5. The material testing integrated platform system according to claim 2, further comprising an exhaust system, wherein the exhaust system comprises an exhaust collection device (7) and a condensing device.
6. The material testing integrated platform system according to claim 1, wherein the rotary testing module comprises a motor (10), and the motor (10) is used for connecting with a testing component and driving the testing component to rotate.
7. The material testing integrated platform system according to claim 1, wherein the thermal fatigue testing module comprises a temperature-changing control device (11), and the temperature-changing control device (11) is used for controlling the alternating of the temperature and the heat of the steam of the thermal fatigue testing module.
8. The material testing integrated platform system according to claim 1, wherein the anti-relaxation testing module comprises a pre-tightening force applying device (12), and the pre-tightening force applying device (12) is used for connecting with a testing component to apply pre-tightening force to the testing component.
9. The material testing integrated platform system according to claim 1, further comprising an auxiliary heating device (9), wherein the auxiliary heating device (9) is used for auxiliary heating of the steam temperature of the rotation testing module and/or the anti-relaxation testing module.
10. The material testing integrated platform system according to claim 1, further comprising a closed cavity (13) in which the rotation testing module (2), the thermal fatigue testing module (3) and the anti-relaxation testing module (4) are disposed.
11. A test method of the material test integrated platform system according to any one of claims 1 to 10, characterized in that steam is extracted from a steam pipeline of a generator set (5), steam parameters are adjusted by a steam parameter adjusting device (6), and then the steam enters the rotation test module (2), the thermal fatigue test module (3) and the anti-relaxation test module (4) respectively;
the test part rotates at a high speed in the rotation test module (2) to verify the torsional fatigue performance of the test material;
the test part carries out cold-hot alternation in the thermal fatigue test module (3) to verify the thermal fatigue performance of the test material;
the test component carries out pre-tightening force loading in the anti-relaxation test module (4) to verify the relaxation performance of the test material;
and the steam is discharged from the rotation test module (2), the thermal fatigue test module (3) and the anti-relaxation test module (4) and then returns to the steam pipeline or the steam parameter adjusting device (6) for cyclic utilization.
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| CN113418560A (en) * | 2021-06-29 | 2021-09-21 | 哈尔滨工业大学 | Equipment and method for rapidly formulating molding process parameters of resin-based composite material |
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