CN108760323A - Compensation of pipeline device and its turbine test device - Google Patents
Compensation of pipeline device and its turbine test device Download PDFInfo
- Publication number
- CN108760323A CN108760323A CN201810528682.1A CN201810528682A CN108760323A CN 108760323 A CN108760323 A CN 108760323A CN 201810528682 A CN201810528682 A CN 201810528682A CN 108760323 A CN108760323 A CN 108760323A
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- Prior art keywords
- compensation
- pipe
- flange structure
- fixed
- pipeline
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to technical field of pipeline connection, a kind of compensation of pipeline device and its turbine test device are disclosed, including the fixed compensation pipe to connect and movement compensation pipe, end of the fixed compensation pipe far from movement compensation pipe has first flange structure, the other end of fixed compensation pipe is embedded in movement compensation pipe and medium can be made smoothly to circulate between movement compensation pipe and fixed compensation pipe, second flange structure is equipped at the connecting pin of movement compensation Guan Yu fixed compensation pipes, at least there are one corresponding positions for tool in the circumferential with the through-hole in second flange structure for first flange structure, it is fastened between the through-hole of the corresponding position and is connected to lead screw, lead screw is respectively equipped with nut at the both ends through through-hole.The compensation of pipeline device can be applicable to the occasion that a variety of pipeline uses need Iterim Change length in the process, pass through the nut on flexible operating lead screw, movement compensation portion can be made to be moved forward or back relative to fixed compensation portion, to effectively quickly realize the variation of pipeline length.
Description
Technical field
The present invention relates to turbine test technical fields, and in particular, to a kind of compensation of pipeline device and its turbine test dress
It sets.
Background technology
Sub-scale model turbine test device is suitable for aero-engine sub-scale model turbine performance test, the experimental rig of existing exerciser by
Air inlet pipeline, testpieces, exhaust volute, hydraulic dynamometer, fixed platform, diaphragm coupling, transfer for return water pipeline, water system
The compositions such as pipeline.Hydraulic dynamometer selected by experimental rig is import equipment, its main feature is that console mode is installed, can measure experiment
The rotating speed and torque of part, and can be with the rotating speed of Control experiment part；Dynamometer entery and delivery port is separately positioned on the upper and lower of shell side
Both ends pass through flange and confession, return water switching piping connection respectively.The power of testpieces output reaches dynamometer by diaphragm coupling
Rotor, then by rotor, the interaction of working medium water, shell, by water in adjacent rotor and stator surface boundary layer
Viscous shear absorbs, and resulting resistance applies damping to rotation, and transfers a torque to measurement of power with same active force
Device shell is measured the torque of testpieces by instrument measuring torsional vibration；Since viscous shear makes the temperature of water increase, to make testpieces
The mechanical energy of output is converted into the thermal energy of water and is taken away by flowing water.Testpieces output power is led to by the torque measured with rotating speed
It crosses formula scales and obtains.
Often span is bigger for different types of sub-scale model turbine test part, power bracket or the range of speeds, therefore in order to
The needs of experiment, the sub-scale model turbine test device are configured with the hydraulic dynamometer of more different models, by replacing different model
Hydraulic dynamometer meets different experiment demands；For the hydraulic dynamometer of different capacity or rotating speed grade, the axis of ontology
To length difference.
The installation of existing each experimental rig of exerciser：The inlet casing of testpieces is connected to one by bolt and air inlet pipeline
It rises, the exit casing of testpieces, which is bolted, to be fixed on exhaust volute, and the row of being fixed on is bolted in exhaust volute
In gas spiral case mounting base, exhaust volute mounting base, which is bolted, fixes on the stationary platform, and testpieces axis is joined by membranous disc
Axis device is connect with hydraulic dynamometer shaft；Hydraulic dynamometer, which is bolted, to be fixed in dynamometer mounting base, dynamometer peace
Dress seat, which is bolted, to be fixed on the stationary platform；Pass through flange and waterpower measurement of power respectively for transfer one end of pipeline of, return water
The entery and delivery port of device links together, and the other end is linked together by the drainage mouth of flange and water system respectively.For
Using the different types of sub-scale model turbine test part of same model hydraulic dynamometer, due to the difference of testpieces axis extension elongation,
It will cause the transformation for water return pipeline, confession, the return water switching pipeline of different length size need to be increased；For using different model
The sub-scale model turbine test part of hydraulic dynamometer, and since the ontology axial length of different model hydraulic dynamometer is different, can also draw
The transformation for water return pipeline is played, confession, the return water switching pipeline of different length size need to be increased.
Stainless steel pipe and flange are used for water return pipeline, therefore for the transformation of water return pipeline, different length ruler need to be increased
Very little confession, return water are transferred pipeline.If for, return water transfer pipeline processing quality it is bad, lead to its length dimension or its both ends
The bolt hole circumferential position of flange does not meet design requirement, and the place of matching generates after just will appear leak or can not installing or install
The case where extra stress deformation, influences the development of experiment；Meanwhile it is too many for return water switching pipeline, also it is unfavorable for testing ground
Management.
Invention content
Present invention solves the technical problem that being to overcome the deficiencies of existing technologies, it is simple, swift to operate to provide a kind of connection
, can effectively solve turbine test during the compensation of pipeline device of transform measure is needed for water return pipeline.
Present invention simultaneously provides a kind of turbine test devices equipped with above-mentioned compensation of pipeline device.
The purpose of the present invention is achieved through the following technical solutions：
A kind of compensation of pipeline device, including the fixed compensation pipe and movement compensation pipe that connect, fixed compensation pipe is far from movement compensation
There is first flange structure, the other end of fixed compensation pipe to be embedded in movement compensation pipe and medium can be made in activity for the end of pipe
It smoothly circulates between compensation pipe and fixed compensation pipe, second flange is equipped at the connecting pin of movement compensation Guan Yu fixed compensation pipes
Structure, at least there are one corresponding position, the correspondences for tool in the circumferential with the through-hole in second flange structure for first flange structure
It is fastened between the through-hole of position and is connected to lead screw, lead screw is respectively equipped with nut at the both ends through through-hole.
Further, first flange structure has in the circumferential with the through-hole in second flange structure there are two corresponding position,
Described two corresponding positions are distributed in fixed compensation pipe circumferential direction.
Further, second flange structure welding is on the end face of movement compensation pipe, the inner surface of second flange structure
It is contacted with the fitting of the periphery of fixed compensation pipe.
Still further, having gap between the inner surface and the periphery of fixed compensation pipe of movement compensation pipe.
Also further, gap is 0.1~2mm.
Further, the inner surface of second flange structure is equipped at least one groove for installing sealing ring.
Further, the groove is two, has spacing between two grooves.
Still further, the sealing ring installed in the groove of movement compensation pipe is rectangular seal, mended far from activity
It is O-ring seal to repay the sealing ring installed in the groove of pipe.
A kind of turbine test device, including hydraulic dynamometer, the feed pipe for hydraulic dynamometer water supply and discharge waterpower are surveyed
The drainpipe of water in work(device, hydraulic dynamometer have inlet and outlet, between water inlet and feed pipe, water outlet and draining
A compensation of pipeline device as described in claim 1~8 any one is respectively equipped between pipe.
Compared with prior art, the invention has the advantages that：
1）The compensation of pipeline device can be applicable to the occasion that a variety of pipeline uses need Iterim Change length in the process, by flexible
The nut on lead screw is operated, movement compensation portion can be made to be moved forward or back relative to fixed compensation portion, to effectively quickly realize
The variation of pipeline length；
2）The turbine test device of the present invention is mounted with the compensation of pipeline device, compensation of pipeline respectively at inlet and outlet
Device can flexible elongated or shortening in the axial direction, and compensation of pipeline device is quickly and expediently installed, and has been well solved existing
The experimental rig of technology is when installing sub-scale model turbine test part caused by the difference of different type testpieces axis extension elongation
The problem of transformation for water return pipeline and installation hydraulic dynamometer when by different model hydraulic dynamometer length difference drawn
Rise the problem of transformation for water return pipeline；
3）Two corresponding positions of through-hole are distributed in fixed compensation pipe circumferential direction in first flange structure and second flange structure, are led to
Opposite lead screw is crossed to constrain the relative movement of fixed compensation pipe and movement compensation pipe, can effectively ensure fixed compensation pipe and
The accuracy and reliability of relative motion between movement compensation pipe；
4）The inner surface of second flange structure is contacted with the fitting of the periphery of fixed compensation pipe, the inner surface of movement compensation pipe and fixation
Compensating between the periphery of pipe has gap, it is ensured that movement compensation pipe is easy to be relatively fixed compensation pipe and is subjected to displacement, and is occurring
It only needs to overcome the contact force between second flange structure and fixed compensation pipe in displacement process；
5）The inner surface of second flange structure is equipped at least one groove for installing sealing ring, enhancing fixed compensation Guan Yu
Leakproofness between two flange arrangements avoids the junction leakage of medium between.
Description of the drawings
Fig. 1 is the structural schematic diagram of turbine test device described in embodiment 1；
Fig. 2 is the enlarged drawing of the parts I in Fig. 1；
Fig. 3 is the structural schematic diagram of compensation of pipeline device described in embodiment 1.
Specific implementation mode
The present invention is further illustrated With reference to embodiment, wherein attached drawing only for illustration,
What is indicated is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
Embodiment 1
As shown in Figure 1, a kind of turbine test device is provided, including air inlet pipeline 11, turbine test part 2, exhaust volute 12, exhaust
Spiral case mounting base 13, diaphragm coupling 15, hydraulic dynamometer 16, dynamometer mounting base 17, is hydraulic dynamometer at fixed platform 14
The drainpipe 32 of water in 16 feed pipes 31 to supply water and discharge hydraulic dynamometer.
The inlet casing of turbine test part 2 is linked together by bolt and air inlet pipeline 11；Its exit casing passes through spiral shell
Bolt is fastened on exhaust volute 12；Turbine test part axis is connect by diaphragm coupling 15 with hydraulic dynamometer 16.
Exhaust volute 12, which is bolted, to be fixed in exhaust volute mounting base 13, and exhaust volute mounting base 13 passes through spiral shell
Bolt is fixed in fixed platform 14.
Hydraulic dynamometer 16, which is bolted, to be fixed in dynamometer mounting base 17, and dynamometer mounting base 17 passes through bolt
It is fixed in fixed platform 14.
Specifically, hydraulic dynamometer 16 can measure the rotating speed and torque of turbine test part, and can control turbine test
The power of the rotating speed of part, the output of turbine test part is obtained with rotating speed by formula scales by the torque measured.
Hydraulic dynamometer 16 has water inlet 161 and water outlet 162, between water inlet 161 and feed pipe 31, water outlet
A compensation of pipeline device 4 is respectively equipped between 162 and drainpipe 32.
As shown in Figures 2 and 3, compensation of pipeline device 4 specifically includes the fixed compensation pipe 41 to connect and movement compensation pipe 42,
End of the fixed compensation pipe 41 far from movement compensation pipe 42 has first flange structure 411, the other end of fixed compensation pipe 41 embedding
It is located in movement compensation pipe 42 and medium can be made smoothly to circulate between movement compensation pipe and fixed compensation pipe（Fixed compensation pipe
The other end is plain shaft structure）, movement compensation pipe 42 with the connecting pin of fixed compensation pipe 41 at be equipped with second flange structure 421,
At least there are one corresponding position, the correspondence positions for tool in the circumferential with the through-hole in second flange structure 421 for first flange structure 411
It is fastened between the through-hole set and is connected to lead screw 43, lead screw 43 is respectively equipped with nut at the both ends through through-hole.
Although only also ensuring that stable structure through a lead screw between fixed compensation pipe 41 and movement compensation pipe 42, it is
Reinforce mobile uniformity and stability of the movement compensation pipe when being relatively moved relative to fixed compensation pipe, in the present embodiment
Through-hole in first flange structure 411 and second flange structure 421 have that there are two corresponding positions in the circumferential, and the two correspondences
Position is distributed in 41 circumferential direction of fixed compensation pipe, and two lead screws 43, which are equivalent to, at this time forms opposite levers support, and activity is mended
Repaying each moved further of pipe 42 will all be constrained by the containing of two lead screws 43.
For the leakproofness for further ensuring that between fixed compensation pipe 41 and movement compensation pipe 42, the present embodiment is selected second
Flange arrangement 421 is soldered on the end face of movement compensation pipe 42, and the inner surface of second flange structure 421 and fixed compensation pipe 41
Periphery fitting contact, the inner surface of second flange structure 421 is equipped at least one groove for installing sealing ring 44.
Specifically, the independent design mode of second flange structure has abandoned conventional flange arrangement and the integrated reason of pipeline
It reads, movement compensation pipe and second flange structure can independently carry out generalization mass production, make in small batches without binding together
Amount produces to increase technology difficulty and cost.
It is living in the present embodiment to ensure that movement compensation pipe 42 can flexibly and fast be relatively moved with fixed compensation pipe 41
Between the inner surface and the periphery of fixed compensation pipe 41 of dynamic compensation pipe 42 there is gap, this gap generally to choose 0.1~2mm,
On the one hand the telescopic moving of movement compensation pipe can be made flexible, on the other hand can effectively avoid multi-medium-flow to the gap to make
The impact of pairs of second flange structure 421, avoids final medium from generating the risk largely leaked.
Groove on 421 inner surface of second flange structure is preferably set as two, needed between two grooves it is at regular intervals,
In rectangular seal is installed in the groove of movement compensation pipe, mounting O-shaped sealing ring in the groove far from movement compensation pipe.
Rectangular seal has the section of rectangle, and cross sectional shape makes it have higher sealed pressure, in addition, dual close
The setting of seal can provide strong guarantee for the zero leakage of medium in compensation of pipeline device.
This turbine test device is when coming into operation, now between feed pipe 31 and the water inlet 161 of hydraulic dynamometer
Compensation of pipeline device 4 is introduced for need to extending（The nut at 411 through-hole both ends of first flange structure is referred to as left end contracting below
Short nut 45, left end extend nut 46；The nut at 421 through-hole both ends of second flange structure is referred to as right end and extends nut
47, right end shortens nut 48）：From the point of view of Fig. 2 and Fig. 3, left end is shortened nut 45 and right end shortens nut 48 and unscrews, is allowed to
In free state；Left end elongation nut 46 and right end elongation nut 47 are screwed, adjusts movement compensation pipe 42 in fixed compensation pipe
Displacement on 41 is until compensation of pipeline device 4 reaches the length of needs；It screws left end shortening nut 45 simultaneously later and left end is stretched
Long nut 46, and ensure that the first flange structure 411 of fixed compensation pipe exists with the water inlet flanged joint of hydraulic dynamometer first
Together；The water inlet end of movement compensation pipe is linked together by flange and feed pipe 31 followed by（The water inlet of movement compensation pipe
Flange arrangement can be fixedly installed in end）；It finally screws right end and shortens nut 48 and right end elongation nut 47, make compensation of pipeline device
4 keep current location constant.
Now it is situated between so that the compensation of pipeline device 4 between feed pipe 32 and the water inlet 161 of hydraulic dynamometer need to shorten as an example again
It continues：Left end is extended nut 46 and right end elongation nut 47 unscrews, is allowed to be in free state；It screws left end and shortens 45 He of nut
Right end shortens nut 48, and adjust displacement of the movement compensation pipe 42 on fixed compensation pipe 41 needs up to compensation of pipeline device 4 reaches
The length wanted；It screws left end simultaneously later and shortens nut 45 and left end elongation nut 46, and ensure the of fixed compensation pipe first
One flange arrangement 411 is together with the water inlet flanged joint of hydraulic dynamometer；Followed by the water inlet end of movement compensation pipe 42
It is linked together by flange and feed pipe 31；It finally screws right end and shortens nut 48 and right end elongation nut 47, pipeline is made to mend
Repaying device 4 keeps current location constant.
The length adjustment of compensation of pipeline device 4 between drainpipe 32 and hydraulic dynamometer water outlet 162 and above-mentioned tune
Section mode is identical, and details are not described herein.
It is suitable that the adjusting sequence of each nut in specific adjustment process of this compensation of pipeline device 4 is not limited to above-mentioned operation
Sequence, every movement compensation pipe that can smoothly reach make nut adjustment mode separate or close to displacement purpose relative to fixed compensation pipe
It all belongs to the scope of protection of the present invention.
The turbine test device of the present invention is mounted with that the compensation of pipeline device, pipeline are mended respectively at inlet and outlet
Repay device can flexible elongated or shortening in the axial direction, and compensation of pipeline device is quickly and expediently installed, and has been well solved existing
There is difference of the experimental rig of technology when installing sub-scale model turbine test part by different type testpieces axis extension elongation to be drawn
Rise the problem of transformation for water return pipeline and install hydraulic dynamometer when by different model hydraulic dynamometer length different institutes
Caused the problem of being transformed for water return pipeline.
Obviously, above-described embodiment is only intended to clearly illustrate technical scheme of the present invention example, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
All any modification, equivalent and improvement made by within the spirit and principles in the present invention etc. should be included in right of the present invention and want
Within the protection domain asked.
Claims (9)
1. a kind of compensation of pipeline device, which is characterized in that including the fixed compensation pipe to connect and movement compensation pipe, fixed compensation pipe
There is first flange structure, the other end of fixed compensation pipe to be embedded in movement compensation pipe and can for end far from movement compensation pipe
Medium is set smoothly to circulate between movement compensation pipe and fixed compensation pipe, at the connecting pin of movement compensation Guan Yu fixed compensation pipes
Equipped with second flange structure, at least there are one corresponding positions for tool in the circumferential with the through-hole in second flange structure for first flange structure
It sets, is fastened between the through-hole of the corresponding position and be connected to lead screw, lead screw is respectively equipped with nut at the both ends through through-hole.
2. compensation of pipeline device according to claim 1, which is characterized in that in first flange structure and second flange structure
Through-hole have in the circumferential there are two corresponding position, described two corresponding positions are distributed in fixed compensation pipe circumferential direction.
3. compensation of pipeline device according to claim 1 or 2, which is characterized in that second flange structure welding is mended in activity
It repays on the end face of pipe, the inner surface of second flange structure is contacted with the fitting of the periphery of fixed compensation pipe.
4. compensation of pipeline device according to claim 3, which is characterized in that the inner surface and fixed compensation of movement compensation pipe
There is gap between the periphery of pipe.
5. compensation of pipeline device according to claim 4, which is characterized in that gap is 0.1~2mm.
6. compensation of pipeline device according to claim 3, which is characterized in that the inner surface of second flange structure is equipped with extremely
A few groove is for installing sealing ring.
7. compensation of pipeline device according to claim 6, which is characterized in that the groove is two, between two grooves
With spacing.
8. compensation of pipeline device according to claim 7, which is characterized in that installed in the groove of movement compensation pipe
Sealing ring is rectangular seal, and the sealing ring installed in the groove far from movement compensation pipe is O-ring seal.
9. a kind of turbine test device, which is characterized in that the feed pipe including hydraulic dynamometer, for hydraulic dynamometer water supply and row
Go out the drainpipe of water in hydraulic dynamometer, hydraulic dynamometer has inlet and outlet, between water inlet and feed pipe, is discharged
It is respectively equipped with a compensation of pipeline device as described in claim 1~8 any one between mouth and drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528682.1A CN108760323A (en) | 2018-05-29 | 2018-05-29 | Compensation of pipeline device and its turbine test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528682.1A CN108760323A (en) | 2018-05-29 | 2018-05-29 | Compensation of pipeline device and its turbine test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108760323A true CN108760323A (en) | 2018-11-06 |
Family
ID=64003426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810528682.1A Pending CN108760323A (en) | 2018-05-29 | 2018-05-29 | Compensation of pipeline device and its turbine test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108760323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524383A (en) * | 2020-11-17 | 2021-03-19 | 中国航发四川燃气涡轮研究院 | Axial expansion self-compensating device for aircraft engine turbine part tester |
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| CN2874186Y (en) * | 2005-12-23 | 2007-02-28 | 王金针 | Natural gas pipeline compensator |
| CN202092809U (en) * | 2011-02-24 | 2011-12-28 | 常州常瑞天力动力机械有限公司 | Hydraulic dynamometer with cooling circulating water supply system |
| CN202140715U (en) * | 2011-06-08 | 2012-02-08 | 武汉海王机电工程技术公司 | Mechanical automatic regulation telescopic unit |
| CN202674639U (en) * | 2012-06-13 | 2013-01-16 | 芜湖宏达橡塑阀门制造有限公司 | Pipeline extending unit |
| CN203363474U (en) * | 2013-06-25 | 2013-12-25 | 江汉石油钻头股份有限公司 | Automatic length compensation device for gas pipeline |
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2018
- 2018-05-29 CN CN201810528682.1A patent/CN108760323A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874186Y (en) * | 2005-12-23 | 2007-02-28 | 王金针 | Natural gas pipeline compensator |
| CN202092809U (en) * | 2011-02-24 | 2011-12-28 | 常州常瑞天力动力机械有限公司 | Hydraulic dynamometer with cooling circulating water supply system |
| CN202140715U (en) * | 2011-06-08 | 2012-02-08 | 武汉海王机电工程技术公司 | Mechanical automatic regulation telescopic unit |
| CN202674639U (en) * | 2012-06-13 | 2013-01-16 | 芜湖宏达橡塑阀门制造有限公司 | Pipeline extending unit |
| CN203363474U (en) * | 2013-06-25 | 2013-12-25 | 江汉石油钻头股份有限公司 | Automatic length compensation device for gas pipeline |
Non-Patent Citations (1)
| Title |
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| 刘志刚 等: "全尺寸对转涡轮若干关键试验技术的应用验证", 《"全尺寸对转涡轮若干关键试验技术的应用验证"，刘志刚等，燃气涡轮试验与研究，第30卷第1期，2017年2月》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524383A (en) * | 2020-11-17 | 2021-03-19 | 中国航发四川燃气涡轮研究院 | Axial expansion self-compensating device for aircraft engine turbine part tester |
| CN112524383B (en) * | 2020-11-17 | 2022-04-19 | 中国航发四川燃气涡轮研究院 | Axial expansion self-compensating device for aircraft engine turbine part tester |
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Application publication date: 20181106 |
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