CN206095591U - Machine casket high temperature contains test device based on contact heating method - Google Patents
Machine casket high temperature contains test device based on contact heating method Download PDFInfo
- Publication number
- CN206095591U CN206095591U CN201620781543.6U CN201620781543U CN206095591U CN 206095591 U CN206095591 U CN 206095591U CN 201620781543 U CN201620781543 U CN 201620781543U CN 206095591 U CN206095591 U CN 206095591U
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- Prior art keywords
- casing
- temperature
- thermocouple
- heater
- casket
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 33
- 230000005619 thermoelectricity Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009123 feedback regulation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a machine casket high temperature contains test device based on contact heating method. At quick -witted casket outer wall winding soft wall high temperature contact electric heater, outside parcel heat preservation felt, at quick -witted casket upper and lower installation limit department cushioning heat insulating board, heat preservation felt is in space inclosed relatively with heat insulating board messenger heater and quick -witted casket simultaneously. The thermocouple that heater power line and quick -witted casket inner wall are pasted is connected with the temperature control cabinet, and this thermocouple measurement result makes heating power automatically regulated as temperature feedback. All the other thermocouples are connected with the temperature display instrument table to the homogeneity of observation aircraft casket circumference heating. The utility model provides a test device and testing technique method mainly used aeroengine machine casket high temperature contains the experiment, and the checking machine casket contains the ability under the engine operating condition more being close. Machine casket high temperature contains test device and includes soft wall contact electric heater, heating power supply line, heat insulating board, heat preservation felt, thermocouple, thermocouple lead wire, temperature control cabinet and temperature display instrument table etc.
Description
Technical field
This utility model is related to a kind of casing high temperature containment test device based on contact heating method, this utility model
Casing temperature controllable precise is realized using flexible wall contact electric heater and its TT＆C system, for aero-engine casing high temperature
Containment test.
Background technology
The high-speed rotary part long-term work of aero-engine and auxiliary power unit under extreme loads and adverse circumstances,
By cause influences such as foreign object strike, high cycle fatigue, overheated and faults in material, inevitably occur that high speed rotational blade ruptures
Malicious event.The dangerous debris of high speed high energy penetrate casing and fly out, and can wound cabin, fuel tank, fluid pressure line and the electrical equipment of aircraft
Control circuit etc., causes the secondary destructions such as on fire, the aircraft manipulation failure of loss of cabin pressurization, fuel tank leakage, seriously jeopardizes flight safety.
Therefore, each aviation big country and special provision makes strictly pardon in being organized in civil and military aero-engine specification
Regulation, such as Federal Aviation rule (FAR) -33.94, Europe《Aviation safety authorizes specification》(CS)-E etc..China is civilian《Boat
Empty electromotor seaworthiness regulation》(CCAR) -33.94 identical prescription is made to pardon also：Must be verified by engine test,
During being operated with maximum permissible speed, most dangerous turbo blade failure rear engine can contain damaged part and at least operate 15 seconds not
Catch fire, and which is installed to save and does not also fail；Must permitted with maximum according to the weight of turbo blade and its neighbouring turbine casing
Perhaps the intensity under the related temperature and pressure of rotation speed operation determines the most dangerous turbo blade.
Aircraft engine crankcase component containment test is carried out in vertical and high-speed rotation test device, and experimental enviroment is usually normal
Temperature.The aero-engine casing higher to operating temperature, especially turbine casing, the equivalent method generally using coefficient is contained,
By changing rotor destruction rotating speed, make the containing coefficient of casing under trystate and working condition equal.But it is this kind of to wait efficacious prescriptions
Method has certain limitation：The accuracy of computing formula and its to specific casing used in casing containment coefficient Equivalent Calculation
The suitability of part it cannot be guaranteed that.Therefore, with cold test replacing the casing containment test under operating temperature to be inadequate.
A kind of heating means commonly used in high speed rotor hot test are that electric furnace is installed outside testpieces,
Testpieces is all covered in electric furnace, testpieces is heated using the heat effect of furnace wall internal resistance silk.The method
Can realize casing containment test under the high temperature conditions, but due to muffle electric furnace regular shape and furnace wall is thicker, need to take compared with
Large space, improves the dimensional requirement to exerciser, and increased test difficulty.Further, since heating furnace is complete by testpieces
Closing, cannot use high-speed record instrument to shoot the process for flying that disconnected blade is clashed into casing in process of the test.Furthermore, due to muffle electric furnace material
Material intensity is not high, and by being easy to damage after the shock of failure rotor in high speed rotation test, recycling rate of waterused is low, causes to test into
This increase.
The content of the invention
This utility model is directed to aero-engine casing high temperature containment test, creatively using contact flexible wall high-temperature electric
Hot device directly heats the mode of casing, realizes engine crankcase containing aptitude tests at high temperature, there is provided a kind of being based on connects
The casing high temperature containment test device of touch heating means and test method.
The ultimate principle of this technical method is to utilize to contact with each other and the conduction of heat between the object with the temperature difference and hot spoke
Penetrating makes casing heat up, and is realized to casing temperature by the temperature survey and control system of thermocouple and temperature control cabinet composition
Precise control.Using a kind of controlled shape, arbitrarily can bend, the flexible wall contact electric heater of folding is wrapped in outside casing
Circle, the heat effect after being powered using its internal resistance silk make its continuous intensification, subsequently by heater exterior material and casing
Contact with each other the conduction of heat realized between the two, while the heat radiation of heater itself also acts on casing.In casing wall feature
Thermocouple measuring temperature is pasted in position, and thermocouple and intelligent temperature switch board connect, and realize the feedback regulation of temperature, until casing
Temperature reaches test requirements document.
This utility model provides a kind of casing height based on contact heating method designed based on above-mentioned know-why
Thermometer bulb holds assay device, and whole device includes heater and therm-param method system, and described heater includes connecing
Touch electric heater, thermal insulation board, thermal insulation board, insulation quilt, described therm-param method system include temperature control cabinet, thermoelectricity
Even summation temperature display meter；Contact electric heater is close to the winding of casing outer wall, end to end, wraps outside contact electric heater
Insulation quilt is wrapped up in, the upper and lower installation side link position of casing distinguishes cushioning thermal insulation board, and several thermocouples are circumferentially uniformly pasted onto casing
Inwall, is particularly located at the height such as casing and blade position on the lower side vertically, and heater power lead and wherein one thermocouple draw
Line is connected with temperature control cabinet respectively, and the measurement result of the thermocouple being connected with temperature control cabinet makes temperature as Temperature Feedback
Degree switch board automatically adjusts heating power, and remaining thermocouple wire is connected with temperature display meter.
Further, this utility model makes casing uniformly receive by the way of contact electric heater winding casing outer wall
Heat, the contact electric heater inner homogeneous arrangement resistance wire for being used, there is any flexural property outside using length direction
Heat transfer medium and structure.
Heater structure is：Thermal insulation board is placed between the upper and lower installation side of casing and adjacent structure, it is therefore intended that, first
Rise insulation effect, prevent heater heat excessively by non-case structure scatter and disappear so that casing temperature be difficult to rising reach want
Ask, next to that it is heat-insulated, prevent the remaining part temperature such as armature spindle too high, cause the change of its material property, so as to affect function
Realize；Heater is close to casing outer wall and is wound with one circuit, end to end；Insulation quilt is wrapped in outside heater, additionally, insulation quilt
Filling makes heater still have the space of heat exchange with test intracavity medium or remaining test parts, makes at heater and casing outer wall
In relatively closed space.
Therm-param method function is realized by thermocouple and temperature control cabinet：Several thermoelectricity are evenly distributed on casing
Even, thermocouple is pasted onto casing inwall and mainly investigates position, such as slightly on the lower side or on the upper side vertically with the position of the height such as blade
At inwall, it is ensured that temperature measuring point while not disturbing rotor to rotate is tried one's best impingement position；It is evenly distributed several heat
The purpose of galvanic couple is the uniformity for investigating and confirming that casing temperature is circumferentially distributed, it is ensured that casing circumferentially temperature one everywhere
Cause, so as to ensure the unification of its containment properties, casing containment test is made with more reliability；Heater power lead and thermocouple
Lead is drawn from test cavity, and heater power lead and wherein one thermocouple lead are connected with temperature control cabinet, and thermocouple is surveyed
Amount result automatically adjusts heating power as Temperature Feedback；Remaining thermocouple wire as temperature monitoring, with temperature display meter
Connection.
Compared with prior art, it is of the present utility model to have had the advantage that：
1st, the experimental technique method and apparatus that this utility model is provided is able to aero-engine casing high temperature containment test
Realize, the prediction of casing containment ability is carried out under closer to electromotor actual working conditions, improves casing containment test result
Referring to property.
2nd, the experimental technique method and apparatus provided using this utility model, simply carries out local to aero-engine casing
Heating, is not affected to be installed the performance of part that side be connected and casing closed test rotor with casing up and down, does not affect photograph at a high speed
Phase monitor shoots the knockout process for flying disconnected blade and casing.
3rd, the experimental technique method and apparatus provided using this utility model, aero-engine casing high temperature containment test is not
Excessive extra need space can be increased, the motility selected to exerciser is higher.
Description of the drawings
Fig. 1 is casing high temperature containment test structural representation；
Fig. 2 is the relative position schematic diagram of casing and contact electric heater；
Fig. 3 is contact electric heater structure schematic diagram.
In figure：1st, nitrogen cylinder, 2, nitrogen pipeline, 3, side connecting seat is installed on casing, 4, upper thermal insulation board, 5, insulation quilt,
6th, contact electric heater, 7, side mounting screw is installed under casing, 8, lower thermal insulation board, 9, blade, 10, wheel disc, 11, wheel disc compresses
Nut, 12, drive mandrel, 13, thermocouple, 14, casing, 15, heater wire and thermocouple lead, 16, side is installed on casing installs
Screw, 17, temperature display meter, 18, temperature control cabinet, 19, test cavity, 20, resistance wire, 21, outside contact electric heater
Heat exchange medium.
Specific embodiment
This utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of casing high temperature containment test device based on contact heating method includes that contact electricity adds
Hot device 6, thermocouple 13, heater wire and thermocouple lead 15, temperature control cabinet 18, upper thermal insulation board 4, lower thermal insulation board 8, insulation quilt 5,
Temperature display meter 17 etc..
Casing 14 is touched formula electric heater 6 and winds with one circuit as main body of being heated, outer wall, 6 head and the tail of contact electric heater
Connect；Upper thermal insulation board 4 and lower thermal insulation board 8 are located at 14 upper and lower installation side link position of casing respectively；Insulation quilt 5 is wrapped in contact
Outside formula electric heater 6 and according to thermal requirements and practical structures, filling make contact electric heater 6 still be situated between in test cavity 19
Matter or remaining test parts have the space of heat exchange；The insulation and insulation system that thermal insulation board 4,8 is constituted with insulation quilt 5 makes contact
Electric heater 6 and casing 14 are in relatively closed space.
Therm-param method function is realized by temperature control cabinet 18, thermocouple 13 and temperature display meter 17.Six hot
Galvanic couple 13 is evenly distributed on casing 14, is pasted onto the inwall slightly on the lower side vertically with the position of 9 grade height of blade of casing 14
Place；Heater wire and thermocouple lead 15 are drawn from test cavity 19, heater power lead and wherein one thermocouple lead and temperature
Switch board 18 is connected, and this thermocouple measurement result automatically adjusts heating power as Temperature Feedback；Remaining thermocouple wire with
Temperature display meter 17 connects, and temperature display meter 17 is by 220V Alternating Current Power Supplies.
The casing high temperature containment test bag based on contact heating means realized by above-mentioned experimental technique method and apparatus
Include following steps：
1) testpieces is attached on exerciser, will install side connecting seat 3, casing 14, test wheel disc 10 and blade 9 on casing
It is arranged on exerciser according to test requirements document, the upper and lower installation side of casing is connected by mounting screw 16,7 with thermal insulation board 4,8；
2) circumferentially uniformly paste at the inwall slightly on the lower side vertically with the position of 9 grade height of blade of casing 14 six it is hot
Galvanic couple 13, impingement position of the thermocouple 13 near blade 9 on casing 14；
3) contact electric heater 6 is close to 14 outer wall of casing and is wound with one circuit, end to end；Contact electric heater 6 according to
Casing profile is customized with girth, is fitted with casing 14 everywhere and uniform layout, makes 6 internal resistance silk of contact electric heater uniform
Distribution；
4) insulation quilt 5 is wound outside contact electric heater 6.Insulation quilt 5 is arranged around contact electric heater 6, outward
Portion adopts the arrangement of thin wire banding, insulation quilt 5 make heating position in relatively closed space, reduces heat and scatters and disappears；
5) heater wire and thermocouple lead 15 are drawn by test cavity 19, and heating power supply line is connected with temperature control cabinet 18, right
Contact electric heater 6 is heated；One of thermocouple lead is connected with temperature control cabinet as temperature control feedback element
Connect, remaining thermocouple wire is connected with temperature display meter 17, temperature display meter 17 connects 220V alternating current power supplys；
6), in process of the test, heater switch is started by temperature control cabinet 18 first, casing 14 is made within the predetermined time
Reach target temperature and be incubated a period of time, judge 14 temperature of casing along week by observing the displays temperature of temperature display meter 17
To the uniformity of distribution；
7) insulation a period of time, after 14 uniform temperature fields of casing, after stablizing, Engine Test-bed with High-speed Rotation, drive shaft 12 are started
To rotating speed of target, after the centrifugation of blade 9 of high speed rotation flies out shock casing 14, rotor reduction of speed stops motoring ring test rotor raising speed
Car.
8), after rotor stops operating, closing temperature controlling switch, nitrogen cylinder 1 are filled to test cavity 9 by nitrogen inlet duct road 2
Enter nitrogen as protective gas.
To make casing thermally equivalent, contact electric heater be designed according to casing true form so as to can be close to everywhere
Wind and realize end to end in casing outer wall.Casing is as shown in Figure 2 with the relative position schematic diagram of heater.This practicality is new
Contact electric heater structure used in type is as shown in figure 3, the evenly distributed resistance wire of heater body (20), logical using which
Heat effect after electricity is heated to casing；There is the heat transfer medium and structure of any flexural property outside using length direction
(21), such as silica gel paster, miniature Bulk ceramic component etc..
Claims (2)
1. a kind of casing high temperature containment test device based on contact heating method, it is characterised in that including heater and temperature
Degree measurement and control system, described heater include contact electric heater (6), upper thermal insulation board (4), lower thermal insulation board (8),
Insulation quilt (5), described therm-param method system include temperature control cabinet (18), thermocouple (13) and temperature display meter
(17)；Contact electric heater (6) is close to the winding of casing (14) outer wall, end to end, contact electric heater (6) outer wrap
Insulation quilt (5), thermal insulation board (4), lower thermal insulation board (8) on the upper and lower installation side link position difference cushioning of casing (14), several thermoelectricity
Even (13) are circumferentially uniformly pasted onto casing (14) inwall, are particularly located at casing (14) highly on the lower side vertically with blade (9) etc.
Position, heater power lead and wherein one thermocouple lead are connected with temperature control cabinet (18) respectively, with temperature control
The measurement result of the thermocouple that cabinet (18) connects makes temperature control cabinet (18) automatically adjust heating power as Temperature Feedback, its
Remaining thermocouple wire is connected with temperature display meter (17).
2. device according to claim 1, it is characterised in that casing (14) outer wall is wound using contact electric heater (6)
Mode make casing (14) thermally equivalent, contact electric heater (6) inner homogeneous that used arrangement resistance wire (20) are outside
There are the heat transfer medium and structure (21) of any flexural property using length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620781543.6U CN206095591U (en) | 2016-07-21 | 2016-07-21 | Machine casket high temperature contains test device based on contact heating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620781543.6U CN206095591U (en) | 2016-07-21 | 2016-07-21 | Machine casket high temperature contains test device based on contact heating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206095591U true CN206095591U (en) | 2017-04-12 |
Family
ID=58466678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620781543.6U Withdrawn - After Issue CN206095591U (en) | 2016-07-21 | 2016-07-21 | Machine casket high temperature contains test device based on contact heating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206095591U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289734A (en) * | 2016-07-21 | 2017-01-04 | 浙江大学 | A kind of aero-engine casing high temperature containment test technology |
| CN109655268A (en) * | 2017-10-10 | 2019-04-19 | 中国航发商用航空发动机有限责任公司 | For simulating the experimental facilities of casing |
| CN110030042A (en) * | 2019-04-19 | 2019-07-19 | 中国航发沈阳发动机研究所 | Blade cuts device and containment test device for aerial engine fan casing |
| CN110361195A (en) * | 2019-07-19 | 2019-10-22 | 中国航发沈阳发动机研究所 | A kind of accessory drive gearbox test heat chamber simulator |
| WO2020252983A1 (en) * | 2019-06-20 | 2020-12-24 | 浙江大学 | Material performance testing system under fixed multi-field coupling action in supergravity environment |
-
2016
- 2016-07-21 CN CN201620781543.6U patent/CN206095591U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289734A (en) * | 2016-07-21 | 2017-01-04 | 浙江大学 | A kind of aero-engine casing high temperature containment test technology |
| CN109655268A (en) * | 2017-10-10 | 2019-04-19 | 中国航发商用航空发动机有限责任公司 | For simulating the experimental facilities of casing |
| CN110030042A (en) * | 2019-04-19 | 2019-07-19 | 中国航发沈阳发动机研究所 | Blade cuts device and containment test device for aerial engine fan casing |
| WO2020252983A1 (en) * | 2019-06-20 | 2020-12-24 | 浙江大学 | Material performance testing system under fixed multi-field coupling action in supergravity environment |
| US11609165B2 (en) | 2019-06-20 | 2023-03-21 | Zhejiang University | Material performance testing system under fixed multi-field coupling effect in hypergravity environment |
| CN110361195A (en) * | 2019-07-19 | 2019-10-22 | 中国航发沈阳发动机研究所 | A kind of accessory drive gearbox test heat chamber simulator |
| CN110361195B (en) * | 2019-07-19 | 2021-03-12 | 中国航发沈阳发动机研究所 | Experimental high-temperature chamber analogue means of annex machine casket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170412 Effective date of abandoning: 20180907 |
|
| AV01 | Patent right actively abandoned |