CN109779701A - Axis stream air turbine experimental rig - Google Patents
Axis stream air turbine experimental rig Download PDFInfo
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- CN109779701A CN109779701A CN201910193638.4A CN201910193638A CN109779701A CN 109779701 A CN109779701 A CN 109779701A CN 201910193638 A CN201910193638 A CN 201910193638A CN 109779701 A CN109779701 A CN 109779701A
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- 230000003068 static effect Effects 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 18
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of axis stream air turbine experimental rigs, and with an inlet casing, an exhaust casing, one for testing the pilot system of turbine cascade totality aeroperformance, the pilot system is placed between inlet casing and exhaust casing；Main shaft in the pilot system is connected on exhaust cylinder body by bearing and axle sleeve, front-end of spindle connects impeller and movable vane, rear end dynamometer machine for connecting is connected between the inlet casing and exhaust casing by pull rod, and the junction of inlet casing and exhaust casing is equipped with dynamic and static gaps trimmer；By preceding axis connection air inlet pod in the inlet casing, air inlet pod front end is equipped with nozzle sets, and nozzle sets are located in front of impeller and movable vane；Dynamic pressure ripple sensor is installed in the reserved measured hole in the dynamic and static gaps trimmer and exhaust casing front end, by between dynamic pressure ripple sensor test level and after grade pressure distribution and time averaged velocity field, to determine the overall aeroperformance of turbine cascade.
Description
Technical field
The present invention relates to a kind of steam turbine Pneumatic test device more particularly to a kind of axis stream air turbine experimental rigs.
Background technique
Steam turbine is one kind using steam as power, and converts the thermal energy of steam to the general turbomachinery of mechanical energy, thoroughly
It puts down mechanical aeroperformance and is directly related to the reliable of the performance indicator of Steam Turbine, vibration noise characteristic and equipment operation
Property.In conjunction with similar and modularity theory, develops axis stream air turbine experimental rig and to carry out relevant axis stream air turbine pneumatic
Performance and flow-induced vibration research, can be the formation of steam turbine test specification, the optimization design of turbomachinery passage component, turbine
The formulation of tool sound parts match scheme provides reference frame and test equipment.
The device that can be used for air turbine test both at home and abroad at present is also fewer, more without achievable dynamic and static gaps, part
Degree of admission and the adjustable Special testing device of air inlet distribution mode.
Summary of the invention
The technical issues of present invention is solved is as follows:
1, in conjunction with similar and modularity theory, comprehensively consider various tests and test request, it is empty to design a set of single-stage axial
Gas turbine pilot system；
2, turbine and pilot system are debugged, makes it in aerodynamic parameter, dynamic and static gaps, stator and rotor cascades pitch ratio, partial-air admission
Safe and stable operation in the structures adjustable extent such as degree and air inlet distribution mode；
3, the Parameter adjustables sections such as dynamic and static gaps, partial-air admission degree, the air inlet distribution mode of air turbine are realized；
4, can by the mechanism of production of analysis of experiments single-stage axial air turbine flow-induced vibration and vibration noise and influence because
Element proposes the effective ways for inhibiting or mitigating turbine vibration and noise, and by being verified.
In order to achieve the above object, technical solution of the present invention and content are as follows:
A kind of axis stream air turbine experimental rig, with an inlet casing, an exhaust casing, one for testing turbine leaf
The pilot system of grid totality aeroperformance, the pilot system are placed between inlet casing and exhaust casing；In the pilot system
Main shaft is connected on exhaust cylinder body by bearing and axle sleeve, and front-end of spindle connects impeller and movable vane, rear end dynamometer machine for connecting are described
It is connected between inlet casing and exhaust casing by pull rod, and the junction of inlet casing and exhaust casing is equipped with dynamic and static gaps trimmer；Institute
It states by preceding axis connection air inlet pod in inlet casing, air inlet pod front end is equipped with nozzle sets, and nozzle sets are located at leaf
In front of wheel and movable vane；Installation dynamic pressure ripple passes in the measured hole that the dynamic and static gaps trimmer and exhaust casing front end are reserved
Sensor, by between dynamic pressure ripple sensor test level and grade after pressure distribution and time averaged velocity field, to determine turbine cascade
Overall aeroperformance.
Further, the pilot system is made of nozzle sets, dynamic and static gaps trimmer, movable vane, impeller, main shaft, axle sleeve,
The main shaft is connect by two angular contact bearings with axle sleeve, and impeller is fixed on main shaft by key and fastening nut, movable vane peace
Loaded at the top of impeller, can be tested by replacing the movable vane of different molded line.
Further, the nozzle sets are made of degree of admission controllable register, stator blade, nozzle ring, diaphragm seal, before the stator blade
End is equipped with degree of admission controllable register, and lower end connects nozzle ring, and diaphragm seal is equipped between nozzle ring and attachment base；The degree of admission tune
Section baffle is flapper, by changing the partial-air admission degree of the adjustable turbine of baffle arc length, is existed by changing multistage baffle
The different air inlet distribution mode of the distribution analog of stator blade axial direction.
Further, the dynamic and static gaps trimmer is made of adjustment sheet matrix, adjustment copper packing, O-ring seal, the tune
Full wafer matrix is placed in the junction of inlet casing and exhaust casing, and adjustment sheet matrix side is connected by O-ring seal and inlet casing sealing
It connects, the other side is tightly connected by adjusting copper packing and O-ring seal and exhaust casing；It is adjusted by changing the thickness of adjustment copper packing
The dynamic and static gaps of turbine are tested.
Further, the pull rod is made of front bar, rear bar, pull rod sleeve, passes through pull rod between the front bar and rear bar
Sleeve connection, and pull rod sleeve is threadedly coupled with front bar and rear bar.
Further, four pull rods are shared in the axis stream air turbine experimental rig, four pull rods are in an angle of 90 degrees position point
Cloth is installed between inlet casing and exhaust casing.
Further, the rear-end of spindle is connected by shaft coupling with dynamometer machine.
Beneficial effects of the present invention:
Novel experimental rig that the present invention designs, it can be achieved that axis stream air turbine aeroperformance and exciting attribute testing,
It specifically includes:
1, it can be realized influence test of the partial-air admission degree to axis stream air turbine aeroperformance, flow-induced vibration and noise to survey
Examination；
2, various inlet mode and distribution be can be realized to the shadow of axis stream air turbine aeroperformance, flow-induced vibration and noise
Ring experimental test；
3, it can be realized influence of the different leaf grating dynamic and static gaps to axis stream air turbine aeroperformance, flow-induced vibration and noise
Experimental test.
Detailed description of the invention
Fig. 1 is axis stream air turbine experimental rig schematic illustration of the invention；
Fig. 2 is axis stream air turbine experimental rig structural schematic diagram of the invention；
Fig. 3 is nozzle sets structural schematic diagram；
Fig. 4 is the K direction view in Fig. 3；
Fig. 5 is dynamic and static gaps trimmer structural schematic diagram；
Fig. 6 is drawbar structure diagram.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of axis stream air turbine experimental rig, mainly by gas handling system 1, pilot system 2, exhaust system
3, platform system 4 forms.Pilot system 2 is placed between gas handling system 1 and exhaust system 3, and passes through gas handling system 1 and exhaust system
System 3 is mounted on platform system 4.
As shown in Fig. 2, gas handling system 1 is made of front axle 6, inlet casing 7, air inlet pod 8.Front axle 6 is installed on inlet casing 7
On, air inlet pod 8 is fastened by bolts in 6 rear end of front axle.
Pilot system 2 is made of nozzle sets 9, dynamic and static gaps trimmer 10, movable vane 11, impeller 12, main shaft 16, axle sleeve 15,
Main shaft 16 is connect by two angular contact bearings with axle sleeve 15, and impeller 12 is fixed on 16 front end of main shaft by key and fastening nut
On, movable vane 11 is installed on 12 top of impeller, and the movable vane of replaceable difference molded line is tested.Dynamic and static gaps trimmer 10 is mounted on
Between inlet casing 7 and exhaust casing 14, and it is fastened by bolts in 8 rear end of air inlet pod, and be integrally placed to mounting platform 5
On.Nozzle sets 9, which are installed, to be placed in the air inlet pod 8 in 12 front of impeller, and is fixed on inlet casing 7.
Exhaust system 3 is made of exhaust casing 14, exhaust cylinder cap 18, exhaust flange 13；Main shaft 16 is mounted on axle sleeve 15, then
It is mounted on exhaust casing 14 with exhaust cylinder cap 18, exhaust flange 13, and is integrally placed on mounting platform 5 together.
Platform system is made of mounting platform 5, pull rod 19, shaft coupling 17, dynamometer machine 20.Four pull rods 19 are mounted on air inlet
Between cylinder 7 and exhaust cylinder cap 18, and adjust length, it is ensured that the sealing between inlet casing 7 and exhaust casing 14.In 16 rear axle of main shaft
Section installation shaft coupling 17 is stretched, and is connected by shaft coupling 17 with dynamometer machine 20.
As shown in figures 3 and 4, nozzle sets 9 are made of degree of admission controllable register 21, stator blade 22, nozzle ring 23, diaphragm seal 24, quiet
22 front end of leaf is equipped with degree of admission controllable register 21, and lower end connects nozzle ring 23, and diaphragm seal is equipped between nozzle ring 23 and attachment base
24.Degree of admission controllable register 21 is flapper, by changing the partial-air admission degree of the adjustable turbine of baffle arc length, by changing
Become the multistage baffle air inlet distribution mode different in the distribution analog of stator blade axial direction.
As shown in figure 5, dynamic and static gaps trimmer 10 is made of adjustment sheet matrix 25, adjustment copper packing 26, O-ring seal 27,
Adjustment sheet matrix 25 is placed in the junction of inlet casing 7 and exhaust casing 14, adjustment 25 side of sheet matrix by O-ring seal 27 with into
Cylinder 7 is tightly connected, and the other side is tightly connected by adjusting copper packing 26 and O-ring seal 27 and exhaust casing 14.It is adjusted by changing
The thickness of whole copper packing 26 is tested to adjust the dynamic and static gaps of turbine.7 shell of inlet casing uses double-layer structure, using O-shaped close
Seal 27 carries out interlayer seal, and when dynamic and static gaps change, the length of 7 shell of inlet casing can be changed correspondingly.Adjust sheet matrix 25 with
And the interior pressure installed dynamic pressure ripple sensor, pass through between test level and after grade of measured hole that exhaust 14 front end of cylinder cap is reserved
Distribution and time averaged velocity field, determine the overall aeroperformance of turbine cascade.
As shown in fig. 6, pull rod 19 is made of front bar 31, rear bar 33, pull rod sleeve 32, pass through between front bar 31 and rear bar 33
Pull rod sleeve 32 connects, and pull rod sleeve 32 is threadedly coupled with front bar 31 and rear bar 33.Four pull rods 19 are shared in experimental rig,
It is installed between inlet casing 7 and exhaust cylinder cap 18 in an angle of 90 degrees position distribution.
Specific implementation step of the invention:
(1) front axle 6 is installed on inlet casing 7, air inlet pod 8 is fastened by bolts in 6 rear end of front axle, dynamic and static gaps
Trimmer 10 is fastened by bolts in 8 rear end of air inlet pod, and is integrally placed on mounting platform 5；Movable vane 11 is mounted on
On impeller 12, impeller 12 is mounted on main shaft 16, and main shaft 16 is mounted on axle sleeve 15, then with exhaust cylinder cap 18, exhaust flange 13
It is mounted on exhaust casing 14, and is integrally placed on mounting platform 5 together；4 pull rods 19 are mounted on inlet casing 7 and exhaust casing
Between lid 18, and adjust length, it is ensured that the sealing between inlet casing and exhaust casing.Section installation shaft coupling is stretched in 16 rear axle of main shaft
17, and be connected by shaft coupling with dynamometer machine 20, adjust center position, it is ensured that concentricity and bounce are within 0.07mm.
(2) the installation dynamic pressure ripple sensing in the reserved measured hole of adjustment sheet matrix 25 and 14 front end of exhaust casing
Device, by between test level and grade after pressure distribution and time averaged velocity field, determine the overall aeroperformance of turbine cascade.
(3) by replacing different 21 changing section degrees of admission of controllable register；Changed by the controllable register 21 for replacing different
Become turbine intake method and distribution；Change the dynamic and static gaps of turbine cascade by replacing the adjustment copper packing 26 of different-thickness, adopts
With orthogonal experiment, the test procedure of upper two step, study portion degree of admission, intake method and distribution, leaf grating dynamic and static gaps are repeated
To the influence degree and Influencing Mechanism of axis stream air turbine flow-induced vibration and noise.
(4) dynamic and static gaps adjustment, the adjustment of partial-air admission degree and sensor installation are required inlet casing and exhaust cylinder cap point
Open, by drag link sleeve integral demounting pull rod, it can be achieved that the close-coupled and quick separating of inlet casing and exhaust casing, quickening test into
Degree.
Claims (7)
1. a kind of axis stream air turbine experimental rig, with an inlet casing, an exhaust casing, one for testing turbine cascade
The pilot system of overall aeroperformance, it is characterised in that: the pilot system is placed between inlet casing and exhaust casing；The test
Main shaft in system is connected on exhaust cylinder body by bearing and axle sleeve, and front-end of spindle connects impeller and movable vane, and rear end connection is surveyed
Function machine is connected between the inlet casing and exhaust casing by pull rod, and the junction of inlet casing and exhaust casing is equipped with dynamic and static gaps
Trimmer；By preceding axis connection air inlet pod in the inlet casing, air inlet pod front end is equipped with nozzle sets, and nozzle
Group is located in front of impeller and movable vane；Installation dynamic is pressed in the measured hole that the dynamic and static gaps trimmer and exhaust casing front end are reserved
Power fluctuation sensor, by between dynamic pressure ripple sensor test level and grade after pressure distribution and time averaged velocity field, to determine
The overall aeroperformance of turbine cascade.
2. axis stream air turbine experimental rig according to claim 1, it is characterised in that: the pilot system is by nozzle
Group, dynamic and static gaps trimmer, movable vane, impeller, main shaft, axle sleeve composition, the main shaft are connected by two angular contact bearings and axle sleeve
It connects, impeller is fixed on main shaft by key and fastening nut, and movable vane is installed at the top of impeller, can be by replacing the dynamic of different molded line
Leaf is tested.
3. axis stream air turbine experimental rig according to claim 1, it is characterised in that: the nozzle sets are by degree of admission
Controllable register, stator blade, nozzle ring, diaphragm seal composition, the stator blade front end are equipped with degree of admission controllable register, and lower end connects nozzle
Ring is equipped with diaphragm seal between nozzle ring and attachment base；The degree of admission controllable register is flapper, by changing baffle arc length
The partial-air admission degree of adjustable turbine is distributed by changing multistage baffle in the different air inlet of the distribution analog of stator blade axial direction
Mode.
4. axis stream air turbine experimental rig according to claim 1, it is characterised in that: the dynamic and static gaps trimmer
It being made of adjustment sheet matrix, adjustment copper packing, O-ring seal, the adjustment sheet matrix is placed in the junction of inlet casing and exhaust casing,
It adjusts sheet matrix side to be tightly connected by O-ring seal and inlet casing, the other side is by adjusting copper packing and O-ring seal and row
Cylinder seal connection；Thickness by changing adjustment copper packing is tested to adjust the dynamic and static gaps of turbine.
5. axis stream air turbine experimental rig according to claim 1, it is characterised in that: the pull rod by front bar, after
Bar, pull rod sleeve composition, pass through pull rod sleeve connection, and pull rod sleeve and front bar and rear bar screw thread between the front bar and rear bar
Connection.
6. axis stream air turbine experimental rig according to claim 1, it is characterised in that: the axis stream air turbine test
Four pull rods are shared in device, four pull rods are installed between inlet casing and exhaust casing in an angle of 90 degrees position distribution.
7. axis stream air turbine experimental rig according to claim 1, it is characterised in that: the rear-end of spindle passes through shaft coupling
Device is connected with dynamometer machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193638.4A CN109779701B (en) | 2019-03-14 | 2019-03-14 | Axial flow air turbine test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193638.4A CN109779701B (en) | 2019-03-14 | 2019-03-14 | Axial flow air turbine test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109779701A true CN109779701A (en) | 2019-05-21 |
| CN109779701B CN109779701B (en) | 2023-12-05 |
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ID=66489294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910193638.4A Active CN109779701B (en) | 2019-03-14 | 2019-03-14 | Axial flow air turbine test device |
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| Country | Link |
|---|---|
| CN (1) | CN109779701B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483603A (en) * | 2022-02-24 | 2022-05-13 | 贾轩闻 | Experimental device and experimental method for efficiency experiment of different dynamic and static spacing of pump station |
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| JP2003139093A (en) * | 2001-10-31 | 2003-05-14 | Mitsubishi Heavy Ind Ltd | Clearance adjusting mechanism of moving blade and axial rotary machine and compressor |
| US20040120807A1 (en) * | 2002-12-19 | 2004-06-24 | Albers Robert Joseph | Method and apparatus for controlling fluid leakage through gas turbine engines |
| US20100028149A1 (en) * | 2008-07-29 | 2010-02-04 | Anan Li | Turbine Blade System |
| CN204402593U (en) * | 2014-12-08 | 2015-06-17 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | A kind of turbine turns structure in quiet tune |
| CN204402580U (en) * | 2014-12-31 | 2015-06-17 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | A kind of gas turbine turbine moving-stator blade axial clearance adjust structure |
| CN109441568A (en) * | 2018-11-16 | 2019-03-08 | 华电电力科学研究院有限公司 | A kind of efficient low voltage partition plate covering device and its assembly method |
| CN209875224U (en) * | 2019-03-14 | 2019-12-31 | 中国船舶重工集团公司第七0四研究所 | Axial flow air turbine test device |
-
2019
- 2019-03-14 CN CN201910193638.4A patent/CN109779701B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003139093A (en) * | 2001-10-31 | 2003-05-14 | Mitsubishi Heavy Ind Ltd | Clearance adjusting mechanism of moving blade and axial rotary machine and compressor |
| US20040120807A1 (en) * | 2002-12-19 | 2004-06-24 | Albers Robert Joseph | Method and apparatus for controlling fluid leakage through gas turbine engines |
| US20100028149A1 (en) * | 2008-07-29 | 2010-02-04 | Anan Li | Turbine Blade System |
| CN204402593U (en) * | 2014-12-08 | 2015-06-17 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | A kind of turbine turns structure in quiet tune |
| CN204402580U (en) * | 2014-12-31 | 2015-06-17 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | A kind of gas turbine turbine moving-stator blade axial clearance adjust structure |
| CN109441568A (en) * | 2018-11-16 | 2019-03-08 | 华电电力科学研究院有限公司 | A kind of efficient low voltage partition plate covering device and its assembly method |
| CN209875224U (en) * | 2019-03-14 | 2019-12-31 | 中国船舶重工集团公司第七0四研究所 | Axial flow air turbine test device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483603A (en) * | 2022-02-24 | 2022-05-13 | 贾轩闻 | Experimental device and experimental method for efficiency experiment of different dynamic and static spacing of pump station |
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| CN109779701B (en) | 2023-12-05 |
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