CN202008432U - Device for detecting passage flow capacity inside turbine blade through adopting constant volume water flow rate - Google Patents
Device for detecting passage flow capacity inside turbine blade through adopting constant volume water flow rate Download PDFInfo
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- CN202008432U CN202008432U CN2010206747684U CN201020674768U CN202008432U CN 202008432 U CN202008432 U CN 202008432U CN 2010206747684 U CN2010206747684 U CN 2010206747684U CN 201020674768 U CN201020674768 U CN 201020674768U CN 202008432 U CN202008432 U CN 202008432U
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- constant volume
- liquid level
- blade
- negotiability
- internal channel
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Abstract
The utility model relates to a device for detecting the passage flow capacity inside a turbine blade through adopting constant volume water flow rate, which comprises a water supply tank, liquid level sensors, a timer, a valve, a clamp and a connecting nozzle, wherein the two liquid level sensors are arranged on the water supply tank, the liquid level sensors are respectively connected with the timer, the valve is arranged at the upper part of a water pipe arranged under the water supply tank, the lower end of the water pipe is connected with the clamp and the connecting nozzle, and the blade is fixed on the clamp and the connecting nozzle. The device has the advantages that the cost is low, the operability is high, the application range is wide, the precision is high, the repetitiveness is good, the device can replace an existing measuring device and can be widely applied to the fields of design, production, use maintenance and the like of hollow turbine blades of a turbine engine, the engine development cost and the energy source consumption can be greatly reduced, simultaneously, the development period is shortened, and the powerful support is provided for engine industry in China.
Description
Technical field
The utility model relates to blade negotiability measurement mechanism, particularly a kind of device that adopts constant volume discharge to detect turbo blade internal channel negotiability.
Background technology
In design, research and the production of turbine engine hollow turbine vane, often utilize current that the negotiability of its inner passage is detected, be used to assess the design and the crudy of hollow-core construction, and can estimate the comprehensive cooling effect of blade with this.
Existent method and its ultimate principle are at present: measure the discharge size of passing through blade under the specific pressure of supply water condition, with the negotiability of this current value as evaluation blade hollow-core construction.Because the major technology feature of this method is " blade inlet hydraulic pressure is particular value ", therefore it can be abbreviated as " level pressure method ".At first utilize water pump with water from tank sucking-off by anchor clamps and connect mouth and inject hollow blade, utilize the adjusting of one or more valves that hollow blade feeder connection pressure of supply water is reached then and be stabilized in particular value, and use hydraulic gage to measure it, use traffic instrumentation amount obtains discharge (kg/s or the m by blade path simultaneously
3/ s), the water that flows out blade can be recycled to tank and carry out recycling.
Find that in actual applications mainly there is following shortcoming in this method:
Apparatus expensive: this method needs output pressure and stability of flow and fine-tuning water pump, and measuring accuracy is higher and be easy to the hydraulic gage and the flowmeter of reading numerical values (for example digital), but the valve that also needs robotization control under some condition, these all need higher disposable apparatus fund input and maintenance cost, also need to consume a large amount of electric energy in addition;
Poor operability: remain on particular value as far as possible accurately in order to make blade inlet hydraulic pressure, need the operator simultaneously and repeatedly regulate the folding of pump power and a plurality of valves repeatedly in the measurement, and flowmeter, hydraulic gage are carried out reading and supervision.And need repeatedly handle the seepy question in the complex pipeline, causing finishing measurement needs the cycle longer.
Range of application is narrow: because the used equipment of this method is more, and equipment component (as water pump) needs fixed installation, therefore can only use at fixed-site, can't satisfy the demand of carrying out temporary detecting on airport, engine testsand and other places;
Precision is low: the main physical quantity of measuring is pressure and flow in this method, and with respect to physical quantitys such as length and times, its measuring accuracy is lower, and it is higher to reach the required cost of the measurement of same precision in other words;
Poor repeatability: because the particular vane inlet water pressure in this method needs more equipment to provide and a large amount of manual interventions, so repeatability be cannot say for sure to demonstrate,prove.
The utility model content
The purpose of this utility model is in order to reduce cost and energy resource consumption improves measuring accuracy simultaneously, and the spy provides a kind of device that adopts constant volume discharge to detect turbo blade internal channel negotiability.
The utility model provides a kind of device that adopts constant volume discharge to detect turbo blade internal channel negotiability, it is characterized in that: the device that described employing constant volume discharge detects turbo blade internal channel negotiability comprises upper flume 1, liquid level sensor 2, timer 3, valve 4, anchor clamps and connect mouth 5;
Wherein: two liquid level sensors 2 are installed on the upper flume 1, and liquid level sensor 2 is connected with timer 3 respectively, and valve 4 is installed in the water pipe top below the upper flume 1, and the lower end of water pipe is with anchor clamps and connect mouth 5 and be connected, and blade 6 is fixed on anchor clamps and connects on the mouth 5.
The device that described employing constant volume discharge detects turbo blade internal channel negotiability also comprises lower flume 7, and lower flume 7 correspondences are installed in the position of the below of blade 6.
The device that described employing constant volume discharge detects turbo blade internal channel negotiability also comprises fixed support, and upper flume 1 is fixedly mounted on the support.
Estimate the negotiability of this structure by under action of gravity, flow through time of turbo blade hollow-core construction of the water of measurement standard capacity and difference in height.Because each measurement is identical by the current capacity of blade, therefore this method can be abbreviated as " constant volume method ".
The major technique of this method is characterized as:
Realize that this method at first needs the water container that is positioned at eminence, for example tank or bucket, water that can splendid attire one constant volume utilizes the certain height difference between this container and the blade to drive current through the blade interior passage simultaneously;
At least 2 highly different liquid level emasuring devices should be arranged on water container, but this device can be the scale of Direct observation, also can be can be by the liquid level sensor of instrument identification.When measuring, this measurement mechanism of liquid level process, but should produce the trigger pip of observed person or instrument identification, be used to identify the beginning and the end of measuring process;
Main surveying instrument is a timer in this method, is used to write down liquid level successively by the time interval between two level gauging points.Timer can be the stopwatch by operator's triggering, also can be the self-reacting device that relies on liquid level sensor to trigger, and triggers from the angle that improves measuring accuracy, answers the first-selected latter as survey instrument;
This method needs vertical pipeline, the special-purpose anchor clamps of band valve and connects mouth, to connect tank and turbo blade inner passage.Wherein valve is used for open channel, starts measuring process; Anchor clamps and connect the odd-shaped cross section passage that mouth is used for fixing blade and the pipeline of round section is transferred to blade;
There is specific difference in height in this method between requiring from the tank to the blade, and all is being maintained fixed in the test each time.The starting point of this difference in height can be a liquid level emasuring device in the tank, and stop can be the outlet of water pipe;
Water flows out after the blade, and used vessel reclaims it.
Advantage of the present utility model:
With low cost: as only to need equipment such as water container, liquid level sensor, timer, do not need expensive device such as water pump and flowmeter, so cost is lower.Consumed power not in addition;
Workable: the operator only needs to open valve one time, and reads timer numerical value, only needs several minutes can finish whole measuring processes, has avoided the long consuming time of equipment such as debugging water pump and valve.And because pressure is lower, can avoid drainage greatly, thereby reduce preparation and the debugging cycle of measuring;
Applied range: equipment needed thereby simply is easy to move, and therefore applicable to all kinds of places relevant with turbo blade design, manufacturing and working service, has improved the scope of application and utilization factor;
The precision height: unique physical quantity that needs to measure is the time, can reach 1 ‰ precision with conventional measuring equipment, and with respect to physical quantitys such as pressure and flows, its measuring accuracy ratio is easier to guarantee;
Good reproducibility: the principal element that influences measuring repeatability comprises the shape of container and web member, liquid level and blades height difference etc., is better simply length amount, with respect to factors such as pressure and flows, and easier measurement and assurance.
This device can substitute existing measurement mechanism, and is widely used in the fields such as design, production and working service of turbine engine hollow turbine vane.Can reduce reseach of engine cost and energy resource consumption greatly, shorten the lead time simultaneously, for China's prime mover industry provides strong support.
Description of drawings
Below in conjunction with drawings and the embodiments the utility model is described in further detail:
Fig. 1 detects the principle of device structural representation of turbo blade internal channel negotiability for adopting constant volume discharge.
Embodiment
Present embodiment provides a kind of device that adopts constant volume discharge to detect turbo blade internal channel negotiability, it is characterized in that: the device that described employing constant volume discharge detects turbo blade internal channel negotiability comprises upper flume 1, liquid level sensor 2, timer 3, valve 4, anchor clamps and connect mouth 5;
Wherein: two liquid level sensors 2 are installed on the upper flume 1, and liquid level sensor 2 is connected with timer 3 respectively, and valve 4 is installed in the water pipe top below the upper flume 1, and the lower end of water pipe is with anchor clamps and connect mouth 5 and be connected, and blade 6 is fixed on anchor clamps and connects on the mouth 5.
The device that described employing constant volume discharge detects turbo blade internal channel negotiability also comprises lower flume 7, and lower flume 7 correspondences are installed in the position of the below of blade 6.
The device that described employing constant volume discharge detects turbo blade internal channel negotiability also comprises fixed support, and upper flume 1 is fixedly mounted on the support.
Estimate the negotiability of this structure by under action of gravity, flow through time of turbo blade hollow-core construction of the water of measurement standard capacity and difference in height.Because each measurement is identical by the current capacity of blade, therefore this method can be abbreviated as " constant volume method ".
The major technique of this method is characterized as:
Realize that this method at first needs the water container that is positioned at eminence, for example tank or bucket, water that can splendid attire one constant volume utilizes the certain height difference between this container and the blade to drive current through the blade interior passage simultaneously;
At least 2 highly different liquid level emasuring devices should be arranged on water container, but this device can be the scale of Direct observation, also can be can be by the liquid level sensor of instrument identification.When measuring, this measurement mechanism of liquid level process, but should produce the trigger pip of observed person or instrument identification, be used to identify the beginning and the end of measuring process;
Main surveying instrument is a timer in this method, is used to write down liquid level successively by the time interval between two level gauging points.Timer can be the stopwatch by operator's triggering, also can be the self-reacting device that relies on liquid level sensor to trigger, and triggers from the angle that improves measuring accuracy, answers the first-selected latter as survey instrument;
This method needs vertical pipeline, the special-purpose anchor clamps of band valve and connects mouth, to connect tank and turbo blade inner passage.Wherein valve is used for open channel, starts measuring process; Anchor clamps and connect the odd-shaped cross section passage that mouth is used for fixing blade and the pipeline of round section is transferred to blade;
There is specific difference in height in this method between requiring from the tank to the blade, and all is being maintained fixed in the test each time.The starting point of this difference in height can be a liquid level emasuring device in the tank, and stop can be the outlet of water pipe;
Water flows out after the blade, and used vessel reclaims it.
Claims (3)
1. device that adopts constant volume discharge to detect turbo blade internal channel negotiability, it is characterized in that: the device that described employing constant volume discharge detects turbo blade internal channel negotiability comprises upper flume (1), liquid level sensor (2), timer (3), valve (4), anchor clamps and connect mouth (5);
Wherein: two liquid level sensors (2) are installed on the upper flume (1), liquid level sensor (2) is connected with timer (3) respectively, valve (4) is installed in the water pipe top below the upper flume (1), the lower end of water pipe is with anchor clamps and connect mouth (5) and be connected, and blade (6) is fixed on anchor clamps and connects on the mouth (5).
2. detect the device of turbo blade internal channel negotiability according to the described employing constant volume of claim 1 discharge, it is characterized in that: the device that described employing constant volume discharge detects turbo blade internal channel negotiability also comprises lower flume (7), and lower flume (7) correspondence is installed in the position of the below of blade (6).
3. detect the device of turbo blade internal channel negotiability according to the described employing constant volume of claim 1 discharge, it is characterized in that: the device that described employing constant volume discharge detects turbo blade internal channel negotiability also comprises fixed support, and upper flume (1) is fixedly mounted on the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206747684U CN202008432U (en) | 2010-12-23 | 2010-12-23 | Device for detecting passage flow capacity inside turbine blade through adopting constant volume water flow rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206747684U CN202008432U (en) | 2010-12-23 | 2010-12-23 | Device for detecting passage flow capacity inside turbine blade through adopting constant volume water flow rate |
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| Publication Number | Publication Date |
|---|---|
| CN202008432U true CN202008432U (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206747684U Expired - Fee Related CN202008432U (en) | 2010-12-23 | 2010-12-23 | Device for detecting passage flow capacity inside turbine blade through adopting constant volume water flow rate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571842A (en) * | 2015-12-11 | 2016-05-11 | 中国北方发动机研究所(天津) | Aero-engine fluid director novel test device |
| CN106643942A (en) * | 2016-12-21 | 2017-05-10 | 四川成发普睿玛机械工业制造有限责任公司 | Aero-engine turbine blade air mass flow testing device |
| CN106706290A (en) * | 2016-12-21 | 2017-05-24 | 四川成发普睿玛机械工业制造有限责任公司 | Water flow rate testing device of turbine blade of aviation engine |
| CN109470466A (en) * | 2018-12-24 | 2019-03-15 | 河北工业大学 | A kind of mist flow distribution test method of liquid level-time difference |
| CN109931999A (en) * | 2017-12-19 | 2019-06-25 | 中国原子能科学研究院 | Tiny duct mass velocity measuring device and method in a kind of reactor |
| CN111085955A (en) * | 2019-12-25 | 2020-05-01 | 贵阳航发精密铸造有限公司 | Method and clamp for measuring water flow of inner cavity of multi-connected complex hollow turbine blade |
-
2010
- 2010-12-23 CN CN2010206747684U patent/CN202008432U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571842A (en) * | 2015-12-11 | 2016-05-11 | 中国北方发动机研究所(天津) | Aero-engine fluid director novel test device |
| CN106643942A (en) * | 2016-12-21 | 2017-05-10 | 四川成发普睿玛机械工业制造有限责任公司 | Aero-engine turbine blade air mass flow testing device |
| CN106706290A (en) * | 2016-12-21 | 2017-05-24 | 四川成发普睿玛机械工业制造有限责任公司 | Water flow rate testing device of turbine blade of aviation engine |
| CN109931999A (en) * | 2017-12-19 | 2019-06-25 | 中国原子能科学研究院 | Tiny duct mass velocity measuring device and method in a kind of reactor |
| CN109470466A (en) * | 2018-12-24 | 2019-03-15 | 河北工业大学 | A kind of mist flow distribution test method of liquid level-time difference |
| CN111085955A (en) * | 2019-12-25 | 2020-05-01 | 贵阳航发精密铸造有限公司 | Method and clamp for measuring water flow of inner cavity of multi-connected complex hollow turbine blade |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20151223 |
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| EXPY | Termination of patent right or utility model |