CN205607794U - Hot simulating measurement setup that shakes of thermal barrier coating - Google Patents
Hot simulating measurement setup that shakes of thermal barrier coating Download PDFInfo
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- CN205607794U CN205607794U CN201620409113.1U CN201620409113U CN205607794U CN 205607794 U CN205607794 U CN 205607794U CN 201620409113 U CN201620409113 U CN 201620409113U CN 205607794 U CN205607794 U CN 205607794U
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Abstract
The utility model provides a hot simulating measurement setup that shakes of thermal barrier coating, nozzle among the the device combustion system has adopted shrink expansion spray tube structure, the sample has adopted the large size adj. Tabular nickel base alloys base member to be connected with the gas bag of the same size of a dimension, formed and be similar to the hollow cooling structure of gas turbine blade, the spraying after the coating, be connected its and cavity blast pipe, insert in the mounting hole of carousel fixedly, turned angle and heating holding time by the servo motor control unit control sample, behind switch on and the cooling water, open the air supply, can ignite and begin hot shaking, heating and holding time to back, rotatory cool off by coating sample cooling wind gap spun cold air to cooling off the position, the sample is accomplished once heat and is shaken, and take notes in control and display, adopt the utility model discloses the device is in order to be similar to true working condition, and the heat of simulating under thermal barrier coating high temperature, the high -speed flame fluid annulus border is shaken and the high temperature flame stream process of erodeing, can improve accuracy, the authenticity of test result.
Description
Technical field
This utility model belongs to field of surface engineering technique, is specifically related to a kind of thermal barrier coating heat and shakes simulation test
Device.
Background technology
Gas turbine hot passage parts operating condition is severe, and maximum temperature is close to 1500 degrees Celsius.Thermal barrier coating
It is one of the preventive means of gas turbine hot passage parts, is applied to hot passage parts surface and metal body is entered
Row protection, prevents metal body at high temperature, occurs antioxidation, surrender, creep etc. to lose efficacy.Gas turbine
Have and start feature frequently, thermal barrier coating shakes by the heat of high temperature and high speed flame stream in combustion engine shutdown process,
The effect of washing away etc., it is easy to lost efficacy.During thermal barrier coating heat shakes life assessment, there is no unified, complete
Whole test system can be shaken in the heat of nearly real working condition Imitating thermal barrier coating, coating is washed away by high temperature gas flow
Process.Two ways is usually taken at present be simulated the heat of examination thermal barrier coating and shake performance.The first is logical
Coating is heated to the common running temperature of thermal barrier coating by the mode such as high temperature furnace, electromagnetic wave of crossing, as 1000-1200 takes the photograph
Family name's degree, is then cooled to less than 300 degrees Celsius by modes such as the most air-cooled or water-cooleds by coating and matrix entirety
Or room temperature state.The second is the device by design specialized, adds hot coating by flame, at the base of sample
Side, maintains uniform temperature by adjusting cooling air by matrix, after reaching the keeping warm mode of certain time,
By the way of the most air-cooled or water-cooled, coating is cooled to less than 300 degrees Celsius or room temperature state.With the first
Mode is compared, and the second way, closer to the operating condition of combustion engine thermal barrier coating, i.e. achieves gradient heat and shakes,
Close with real working condition.The combustion-gas flow speed that process uses but this heat is shaken is well below real flame flow velocity
Degree, it is impossible to simulate the high temperature gas flow souring to coating.
Under real working condition, thermal barrier coating is not only shaken by heat, there is also the souring of high temperature downstream,
In conventional test methodologies, only simulate the heat that thermal barrier coating is subject to and shake process, it is impossible to simulation high temperature gas flow pair
The souring of coating.What additionally, conventional thermal shakes, simulation was generally selected is small-sized coin shape sample, typically tries
Control gauge lattice are 25.4mm × 3mm.This small sample is during heat is shaken, and test result is affected by sample border
Greatly, cause coating to start shedding off from sample boundaries, and be extended to sample center, this and true coating
Inefficacy during military service is not inconsistent, coating premature failure.Life-span of shaking the true heat of coating produces erroneous judgement.
Summary of the invention
For solving the problems referred to above, the purpose of this utility model is to provide a kind of thermal barrier coating heat to shake simulation test
Device, by closer to the condition of real working condition and improve the heat of sample structure test thermal barrier coating and shake performance,
To improve the accuracy of hot the performance test results of shaking.
For reaching above-mentioned purpose, this utility model be the technical scheme is that
A kind of thermal barrier coating heat is shaken simulating test device, including the combustor 2 being installed on burner bearing 15,
One end of combustor 2 connects cooling water, combustion gas and air by pipeline, and the other end of combustor 2 inserts spray
Mouth 3, nozzle 3 end is provided with lighter 4；Tabular Superalloy Substrate 6 and the cooling of same size size
Gas bag 17 connects, and forms hollow structure, after tabular Superalloy Substrate 6 sprays thermal barrier coating, hollow structure
It is connected with hollow ajutage 16 and inserts in the installing hole 9 of rotating disk 8, being connected with rotating disk 8 by screw；Watch
Take motor to control to be connected with the servomotor of display 14 with rotating disk 8, set and control the anglec of rotation of rotating disk 8
Spend and position, rotating disk 8 rotate predetermined angular after hollow ajutage 16 with to be connected the trachea 11 having air the most right,
It is provided with spring 10 on trachea 11, by spring 10, automatically trachea 11 is sent into hollow ajutage 16 end
Bellmouth in, and dock supply；The number arranging tabular Superalloy Substrate 6 on described rotating disk 8 is 4-8
Individual；Also include connecting the coating sample cooling air port 7 that tabular Superalloy Substrate 6 is cooled down having air.
Described nozzle 3 have employed convergent-divergent nozzle structure, a diameter of 5-30mm of its throat, throat downstream
Expansion angle is 0-30 °, a length of 5-250mm, and nozzle 3 uses water-cooled or cooling air mode, nozzle 3
Employing heat resisting steel manufactures.
The size of described tabular Superalloy Substrate 6 is not less than 80mm × 80mm, the cooling gas bag 17 at the back side
Venthole with tabular Superalloy Substrate 6 back side distance is: 1mm-10mm, and the venthole of cooling gas bag 17 is
Rectangular opening or circular port, the aperture of circular port is 0.5mm-10mm.
Thermal barrier coating heat described above is shaken the method for testing of simulating test device, by tabular Superalloy Substrate
6, during cooling gas bag 17 and hollow ajutage 16 thereof insert the installing hole 9 of rotating disk 8, fixing after adjustment direction
On sample rotating disk 8, plug in 13, by servomotor realize described tabular Superalloy Substrate 6 and
The rotation of rotating disk 8, controls the anglec of rotation of rotating disk 8 by Serve Motor Control and display 14；Hollow is sent
Airduct 16 docks after rotating location with trachea 11 by rotating disk 8, and cooling gas is by hollow ajutage 16
Portion's passage enters hollow structure and cools down tabular Superalloy Substrate 6；Open source of the gas and cooling water,
Serve Motor Control and display 14 start igniting, and timing by click START button, ran
After in journey, tabular Superalloy Substrate 6 is heated to the stipulated time by high temperature and high speed flame 5, by servomotor
Drive rotating disk 8 to rotate to cool down position by the tabular Superalloy Substrate 6 after heating, coating sample cool down
Air port 7 cools down, and the most next tabular Superalloy Substrate 6 enters heating location and heats.
In cooling procedure, described hollow ajutage 16 has been connected by Dynamic link library mode with trachea 11,
Hollow ajutage 16 is pyramidal structure with the docking port of trachea 11, by spring 10 to gas bottom trachea 11
Pipe 11 applies power upwards, makes trachea 11 top form male and female with hollow ajutage 16 and is connected, trachea
About 11 distance of stretch out and draw backs are 1-30mm.
Compared to the prior art, this utility model has the advantage that
1) by the nozzle of different structure, then gaseous-pressure and flow is coordinated to adjust, regulation burning flame Flow Velocity, with
More real operating mode, the heat under simulation thermal barrier coating high temperature, high speed flame stream environment is shaken and hot flame stream washed away
Journey, to improve the accuracy of test result, verity.
2) have employed large-scale plate tensile sample, its area, much larger than the region of flame stream with coating effect, decreases coating and exists
Heat is affected by coating boundaries during shaking, to improve the accuracy of test result.
3) sample have employed the gas bag type of cooling, improves the uniformity of cooling, reduces sample edge chilling simultaneously
Cause the probability that coating comes off from edge.Tabular Superalloy Substrate is connected with the gas bag of same size size,
Define the cooling structure being similar to gas turbine blades hollow.
Accompanying drawing explanation
Fig. 1 is this utility model device overall structure schematic diagram.
Fig. 2 is that hollow ajutage docks schematic diagram with trachea.
In figure: 1-Pressure gauge, 2-combustor, 3-nozzle, 4-lighter, 5-high temperature and high speed flame, 6-plate
Shape Superalloy Substrate, 7-coating sample cooling air port, 8-rotating disk, 9-installing hole, 10-spring, 11-gas
Pipe, 12-casing, 13-power supply, 14-Serve Motor Control and display, 15-burner bearing, 16-hollow
Ajutage, 17-cools down gas bag.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, installation and the use process of this utility model device is: first gas circuit, cold
But water lines is attached with combustor 2, and employing throat diameter is 15mm, and expanded-angle is 10 °, length
Heat-resisting steel nozzle 3 for 25mm is inserted in combustor 2, and is threaded connection, and is pacified by lighter 4
It is loaded on nozzle 3 front end, by the above-mentioned combustion system connected, is installed on burner bearing 15.By 100mm
× 100mm tabular Superalloy Substrate 6 is connected with the cooling gas bag 17 of same size size, forms hollow knot
Structure, then sprays thermal barrier coating to tabular Superalloy Substrate 6, after spraying, it is blown with hollow
Pipe 16 is attached, and inserts in the installing hole 9 in rotating disk 8, and is connected with rotating disk 8 by screw.Watching
Take motor and control and display 14 arranges the anglec of rotation to be 90 °, and position so that it is rotate every time
After 90 °, hollow ajutage 16 is the most right with trachea 11, automatically trachea 11 is sent into hollow by spring 10 and send
In the bellmouth of airduct 16 end, and dock supply.Plug in 13, open source of the gas, cooling water etc.,
Serve Motor Control and display 14 start igniting, and timing by click START button, starts heat
Shake, after heat time heating time arrives, rotate the cold air sprayed by coating sample cooling air port 7 to cooling position and carry out
Cooling, sample completes once heat and shakes, and records hot shake frequency number by Serve Motor Control and display 14.
Claims (3)
1. a thermal barrier coating heat is shaken simulating test device, it is characterised in that: include being installed on burner bearing
(15) combustor (2) on, one end of combustor (2) connects cooling water, combustion gas and air by pipeline,
The other end of combustor (2) inserts nozzle (3), and nozzle (3) end is provided with lighter (4)；Tabular
Superalloy Substrate (6) is connected with the cooling gas bag (17) of same size size, forms hollow structure, plate
After shape Superalloy Substrate (6) spraying thermal barrier coating, hollow structure is connected with hollow ajutage (16) and inserts
Enter in the installing hole (9) of rotating disk (8), be connected with rotating disk (8) by screw；Serve Motor Control is with aobvious
Show that device (14) is connected with the servomotor of rotating disk (8), set and control the anglec of rotation of rotating disk (8) also
Location, rotating disk (8) rotates after predetermined angular hollow ajutage (16) and is connected the trachea (11) having air
The most right, trachea (11) is provided with spring (10), automatically trachea (11) is sent into by spring (10)
In the bellmouth of hollow ajutage (16) end, and dock supply；Described rotating disk arranges tabular nickel on (8)
The number of base alloy substrate (6) is 4-8；Also include connecting have air to tabular Superalloy Substrate (6)
Carry out the coating sample cooling air port (7) cooled down.
A kind of thermal barrier coating heat the most according to claim 1 is shaken simulating test device, it is characterised in that:
A diameter of 5-30mm of described nozzle (3) throat, throat's downstream expansion angle is 0-30 °, a length of
5-250mm, nozzle (3) uses water-cooled or cooling air mode, and nozzle (3) uses heat resisting steel manufacture.
A kind of thermal barrier coating heat the most according to claim 1 is shaken simulating test device, it is characterised in that:
The size of described tabular Superalloy Substrate (6) is not less than 80mm × 80mm, the cooling gas bag (17) at the back side
Venthole with tabular Superalloy Substrate (6) back side distance be: 1mm-10mm, cooling gas bag (17)
Venthole is rectangular opening or circular port, and the aperture of circular port is 0.5mm-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409113.1U CN205607794U (en) | 2016-05-06 | 2016-05-06 | Hot simulating measurement setup that shakes of thermal barrier coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409113.1U CN205607794U (en) | 2016-05-06 | 2016-05-06 | Hot simulating measurement setup that shakes of thermal barrier coating |
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| CN205607794U true CN205607794U (en) | 2016-09-28 |
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| CN201620409113.1U Active CN205607794U (en) | 2016-05-06 | 2016-05-06 | Hot simulating measurement setup that shakes of thermal barrier coating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823701A (en) * | 2016-05-06 | 2016-08-03 | 华能国际电力股份有限公司 | Thermal barrier coating thermal shock simulation testing device and testing method |
| CN110044947A (en) * | 2019-04-10 | 2019-07-23 | 西北工业大学 | The reliability detecting device of resistance to ablative-insulative material |
| CN114755133A (en) * | 2022-06-15 | 2022-07-15 | 深圳市合扬智能卡科技有限公司 | Waterproof material wear resistance testing device and method for cold wallet |
-
2016
- 2016-05-06 CN CN201620409113.1U patent/CN205607794U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823701A (en) * | 2016-05-06 | 2016-08-03 | 华能国际电力股份有限公司 | Thermal barrier coating thermal shock simulation testing device and testing method |
| CN110044947A (en) * | 2019-04-10 | 2019-07-23 | 西北工业大学 | The reliability detecting device of resistance to ablative-insulative material |
| CN114755133A (en) * | 2022-06-15 | 2022-07-15 | 深圳市合扬智能卡科技有限公司 | Waterproof material wear resistance testing device and method for cold wallet |
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