CN110849632B - Device and method for detecting water flow of aero-engine blade - Google Patents
Device and method for detecting water flow of aero-engine blade Download PDFInfo
- Publication number
- CN110849632B CN110849632B CN201911155185.2A CN201911155185A CN110849632B CN 110849632 B CN110849632 B CN 110849632B CN 201911155185 A CN201911155185 A CN 201911155185A CN 110849632 B CN110849632 B CN 110849632B
- Authority
- CN
- China
- Prior art keywords
- water
- pneumatic valve
- blade
- way pneumatic
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a device and a method for detecting the water flow of an aircraft engine blade, wherein the device comprises: the fixture structure comprises a water collecting box, the fixture structure is fixed on the console, and the water collecting box is fixed below the fixture structure; the device structure further comprises a two-position three-way pneumatic valve, a magnetostrictive liquid level sensor, a metering measuring cylinder, a scale, a two-position two-way pneumatic valve II, a voltage stabilizer, a two-position two-way pneumatic valve I, a two-position two-way pneumatic valve III, a pump set, a water tank and a filter I; two tee bend pneumatic valves pass through the pipe mounting and receive water box below, and the magnetostrictive level sensor inserts in the measurement graduated flask, and the scale is installed in measurement graduated flask the place ahead, connects the measurement graduated flask through two pneumatic valve two of two logical pipelines, and the stabiliser is placed at the control cabinet rear, and two logical pneumatic valve one are connected to the pump package delivery port, and a filter is connected the water tank. The detection method comprises the following steps: testing the sealing performance; II, secondly: testing the blade flow; thirdly, the method comprises the following steps: single-sided test trials.
Description
Technical Field
The invention belongs to the technical field of tests and tests, and particularly relates to a device and a method for detecting water flow of an aircraft engine blade.
Background
With the development of aeroengines towards high flow ratio, high thrust-weight ratio and low oil consumption, the temperature in front of the turbine of the engine is continuously increased and greatly exceeds the temperature which can be born by the material of the high-pressure turbine blade. To accommodate the increasing turbine inlet temperatures, engine high pressure turbine blades are typically designed as hollow air cooled blades that are cooled by air drawn from the compressor, with convective cooling and convective film cooling being the most widely used. The size of the cooling gas flow through the inner cavity of the high-pressure turbine blade is undoubtedly the key of the cooling effect, so that the flow capacity of the inner cavity needs to be detected after the high-pressure turbine blade is produced. At present, the main method for measuring the air flow of the inner cavity of the high-pressure turbine blade is air flow measurement or water flow measurement, and due to the compressibility of air, when the pressure and the temperature change, the flow value of the air also changes greatly, so that the requirement on the environment is high; water is not compressible and is less influenced than air in pressure and temperature changes, so that the high-pressure turbine blade mainly adopts water flow measurement to indirectly measure air flow at present. The invention discloses a device and a method for detecting the flow of an inner cavity of an engine blade, which are necessary devices for detecting the flow of the inner cavity of the engine blade and corresponding detection methods.
Disclosure of Invention
The invention provides a device and a method for detecting the water flow of an aircraft engine blade, which are used for detecting the flow of an inner cavity of the blade by automatically regulating the pressure of a main path, automatically judging whether the pressure is stable or not by adopting automatic pressure regulation, automatically collecting the flow, and automatically draining water by a measuring cylinder after collected flow data is manually uploaded. The situations of manual pressure regulation, manual collection and manual graduated cylinder drainage in the prior art are changed. Compared with other similar devices, the device adopts secondary filtration and a special pressure stabilizing system, is a detection device with high performance and high efficiency, not only inherits the characteristics of the traditional blade inner cavity flow testing device, but also is well compatible with the current computer technology and automatic control technology. The technical scheme adopted by the invention is as follows:
an aeroengine blade water capacity detection device, the device includes: the device comprises a clamp structure and a device structure, wherein the device structure comprises a water collecting box, the clamp structure is fixed on a control console, and the water collecting box is fixed below the clamp structure;
the device structure further comprises a two-position three-way pneumatic valve, a magnetostrictive liquid level sensor, a metering measuring cylinder, a scale, a two-position two-way pneumatic valve II, a voltage stabilizer, a two-position two-way pneumatic valve I, a two-position two-way pneumatic valve III, a pneumatic manual valve, a pump set, a water tank and a filter I; the two-position three-way pneumatic valve is arranged below the water collecting box through a pipeline, the magnetostrictive liquid level sensor is inserted into the metering cylinder, the scale is arranged in front of the metering cylinder and is connected with the metering cylinder through the two-position two-way pneumatic valve II, the voltage stabilizer is arranged behind the console, the three-position two-way pneumatic valve is connected with a water inlet of the water tank, the other end of the three-position two-way pneumatic valve is connected with the pipeline, the pipeline is connected with the blade, a water outlet of the pump set is connected with the first two-position two-way pneumatic valve, a water inlet of the pump set is connected with the first filter, the filter is connected with the water tank, and the water tank provides water for the device;
the fixture structure comprises an air cylinder, a support, a guide rod, a pressure rod, a tool, a water inlet pipe and a water collecting box, one end of a pneumatic manual valve is connected with the air cylinder through a throttle valve, the other end of the pneumatic manual valve is connected with a factory source air pump, the air cylinder is fixed on the support, the guide rod is installed in parallel with an air cylinder piston to control the pneumatic manual valve, the piston of the air cylinder pushes the pressure rod to move and press the tool, the tool is used for clamping a blade, water enters the blade through the water inlet pipe, and then flows out of the blade and flows into the water collecting box.
The method for detecting the water flow rate of the blade of the aircraft engine comprises the following steps:
the method comprises the following steps: test for sealing
1. Controlling a pneumatic manual valve, and clamping and sealing the test blade;
2. setting a pressure given value of 0.8Mpa on an operation interface;
3. and starting a pump set, opening the first two-way pneumatic valve, opening the third two-way pneumatic valve, supplying water to the sealing blade, checking whether the blade clamp and a system pipeline leak water or not, and finishing the system tightness test.
Step two: vane flow test
1. Controlling a pneumatic manual valve, and clamping a test blade;
2. setting a pressure given value of 0.8Mpa on an operation interface;
3. calling information such as the number of a furnace of the engine, the number of a batch, the number of a task and the like from an operation interface;
4. starting a pump set, closing the first two-position two-way pneumatic valve, opening the third two-position two-way pneumatic valve, supplying water to the test blade, spraying water through an inner cavity and an outer cavity of the blade, collecting the water by the two water collecting boxes, and returning the water to the water tank through the two-position three-way pneumatic valve;
5. the stop regulating valve carries out automatic PID regulation according to a pressure set value and a feedback value of a pressure sensor in the pipeline;
6. when the system pressure reaches 0.8Mpa +/-0.002 Mpa and the pressure is kept stable for 10 seconds, the two-position three-way pneumatic valve is reversed, water flow of the inner cavity and the outer cavity of the blade respectively enters the metering cylinders after being shunted by the water receiving box, the flow metering is started for 1 minute, the actual pressure value does not meet the set pressure +/-0.002 condition in the metering process for 1 minute, the test is finished, the two-position two-way pneumatic valve is opened, the water is automatically drained, and the step 4 can be repeated after 2 minutes;
7. and after the metering is finished for 1 minute, the two-position three-way pneumatic valve automatically reverses, water flows back to the water tank, and the metering is finished. And 3 seconds later, opening the first two-position two-way pneumatic valve, closing the third two-position two-way pneumatic valve, and stopping water inflow of the blades. After the metering is finished for 5 seconds, the computer automatically reads the reading of the magnetostrictive liquid level sensor in the metering cylinder, converts the reading into a one-minute flow value and automatically stores the data;
8. and after the metering is finished for 10 seconds, the two-position two-way pneumatic valve II is opened, and the metering cylinder drains water. After draining for 2 minutes, closing the two-position two-way pneumatic valve II, finishing draining, and waiting for next measurement;
9. completing the test and submitting the military test;
10. and (4) replacing the blade, repeating the step 1 and starting the next blade measurement.
Step three: single side test
And in the unilateral test step, referring to the step II, whether the water flow in the inner cavity and the outer cavity of the engine flows into the water collecting boxes respectively or not is mainly checked by adopting unilateral blades, and the unilateral blades are used for verifying and confirming the correctness of the water collecting device.
The measurement principle of the invention is as follows: when the water flow test is carried out, the given water flow pressure is larger and is about 0.8MPa, and the required precision is higher. The working temperature is 15-35 ℃, and the drift diameter of the system is DN. In actual measurement, flow value measurement needs to be carried out on an inner cavity and an outer cavity respectively, the system automatically adjusts the pressure after the measurement is started, the measurement can be carried out when the time is not more than 2min, water flow passing through the inner cavity and the outer cavity of the blade respectively enters two different measuring cylinders, the measuring time is 1 min, after the measurement is finished, the liquid level of the measuring cylinder is automatically read by a computer through a liquid level sensor and converted into a flow value, after the data reading is finished, a water drain valve of the measuring cylinder is automatically opened, the measuring cylinder is emptied, and a water drain valve is automatically closed after the measuring cylinder is emptied to prepare for next measurement.
Automatic pressure regulating principle: the water flow test of the inner cavity of the engine blade needs to be carried out within a certain test pressure range, and the system adopts an automatic regulating valve to realize the automatic regulation of the pressure. 4-20 mA current signals output by a pressure transmitter installed on a pipeline are input into a regulating valve as feedback signals, a target value of test pressure is set in touch screen software, and PID (proportional-integral-derivative) regulation is performed by setting corresponding functional parameters in the regulating valve, so that the pipeline pressure is kept within a certain range, and the smooth performance of a blade water flow test is ensured. In the process of pressure regulation, the PID controller receives a signal of the pressure sensor as a feedback value, compares the feedback value with a set value, and automatically regulates the opening of the pressure regulating valve through the algorithm of the PID controller, so that the actual pressure of water flow in a pipeline is changed, the purpose of automatic pressure regulation is realized, and the control is closed-loop control.
Software control principle: the functions of system control, data acquisition, storage, query and the like in the device are compiled by software VB (visual basic). VB (visual basic) is a universal visual programming language, and is simple and efficient development application software. The method has the advantages of powerful functions, capability of being comparable to Windows professional development tools, high efficiency, low development cost, simplicity, easy learning, stable operation and the like, is convenient for data connection with the existing database in a company due to open database connection, and is friendly and attractive in compiled interface and convenient to operate.
After the test blade is clamped, a target pressure value can be set on the operation interface. And parameter information of the blade, such as part number, work serial number, batch number, furnace number and the like, is called on the touch screen operation interface. After the test is started, a water pump is started to pump water from a water tank, a water return valve, namely a first two-position two-way pneumatic valve, is opened, a water inlet valve, namely a third two-position two-way pneumatic valve, is closed, water flow directly returns to the water tank from a two-position three-way pneumatic valve passage, the test is started, the first two-position two-way pneumatic valve is closed, the third two-position two-way pneumatic valve is opened, a pressure regulating valve performs PID (proportion integration differentiation) regulation according to a set pressure value and a pressure feedback signal of a pressure sensor to enable the water flow pressure at the inlet of a blade to reach a set value, the two-position three-way pneumatic valve is reversed after the metering is started, the water flow enters a measuring cylinder, the metering is started, the first two-position two-way pneumatic valve is opened after the metering is finished, the third two-position two-way pneumatic valve is closed, a liquid level sensor transmits the liquid level in the measuring cylinder to an industrial personal computer to calculate the flow value through software, the second two-position two-way pneumatic valve is opened after the calculation is finished, the calculation of the water in the measuring cylinder is discharged, ready for the next test. Signals of the pressure sensor, the temperature sensor and the liquid level sensor enter the industrial personal computer after being conditioned by the isolation module. The isolation module plays a role in supplying power to the sensor and isolating signals for the finished product.
The invention has the beneficial effects that: the device comprises a water tank, a pump set, a filter, a voltage stabilizer, an electromagnetic valve, a pressure regulating valve, a pressure sensor, a blade clamp, a measuring cylinder, a magnetostrictive liquid level sensor and other components, and mainly meets the requirement of testing the flow of the inner cavity of the blade of a certain type of engine. The detection method comprises the following steps: starting a water pump, installing blades, opening a water inlet valve, automatically regulating the pressure of the system, opening the water inlet valve of the measuring cylinder, measuring the flow of the measuring cylinder for 1 minute, and draining the measuring cylinder. By applying the aero-engine blade water flow detection device based on touch screen operation in blade water flow detection, the requirement for testing the engine blades is met, and the smooth progress of scientific research and production of companies is guaranteed. In the test, the two blades are tested, the test results of comparing and transmitting data meet the process requirements, the method has the characteristics of accurate measurement, high repetition precision, stable pressure, short measurement time and the like, can be popularized to the flow detection of the blades of other models, and has wide application prospect and popularization value.
Drawings
FIG. 1 is a block diagram of the apparatus of the present invention;
FIG. 2 is a view of the fixture of the present invention;
FIG. 3 is a schematic diagram of the apparatus of the present invention;
FIG. 4 is a schematic diagram of the control system of the apparatus of the present invention;
FIG. 5 is a schematic diagram of an automatic pressure regulating system of the present invention.
Description of the symbols: 1-a ball valve 2-a filter 3-a pump set 4-an overflow valve 5-a manual valve 6-a two-position two-way pneumatic valve 7-a pressure stabilizer 8-a pressure gauge 9-a filter two 10-an energy accumulator 11-a stop regulating valve 12-a shock-proof pressure gauge 13-a pressure sensor 14-a pneumatic manual valve 15-a throttle valve 16-an air cylinder 17-an electromagnetic valve 18-a two-position three-way pneumatic valve 19-a magnetostrictive liquid level sensor 20-a metering cylinder 21-a two-position two-way pneumatic valve two 22-a manual valve two 23-a water tank 24-a two-position two-way pneumatic valve three 25-a clamp structure 26-a water collecting box 27-a scale 28-a support 29-a guide rod 30-a pressure rod 31-a tooling 32-a water inlet pipe.
Detailed Description
In order that the invention may be more clearly understood, the invention is described in further detail with reference to the accompanying drawings.
The following describes an aircraft engine blade water flow detection device and a detection method provided by the embodiment of the invention with reference to fig. 1-5.
As shown in fig. 1 to 3, according to the water flow rate test process of certain type of blade, the test piece is subjected to a process test,
an aeroengine blade water capacity detection device, the device includes: the device comprises a clamp structure 25 and a device structure, wherein the device structure comprises a water receiving box 26, the clamp structure 25 is fixed on a control console, and the water receiving box 26 is fixed below the clamp structure 25.
The device structure further comprises a two-position three-way pneumatic valve 18, a magnetostrictive liquid level sensor 19, a metering cylinder 20, a scale 27, a two-position two-way pneumatic valve II 21, a voltage stabilizer 7, a two-position two-way pneumatic valve I6, a two-position two-way pneumatic valve III 24, a pneumatic manual valve 14, a pump unit 3, a water tank 23 and a filter I2; the two-position three-way pneumatic valve 18 is arranged below the water receiving box 26 through a pipeline, the magnetostrictive liquid level sensor 19 is inserted into the metering cylinder 20, the scale 27 is arranged in front of the metering cylinder 20 and is communicated with the two-position two-way pneumatic valve II 21 through the pipeline to be connected with the metering cylinder 20, the voltage stabilizer 7 is arranged behind the control console, the water outlet of the pump unit 3 is connected with the two-position two-way pneumatic valve I6, the two-position two-way pneumatic valve III 24 is connected with the water inlet of the water tank 23, the other end of the two-position two-way pneumatic valve II is connected with the pipeline, the pipeline is connected with the blades, the water inlet of the pump unit 3 is connected with the filter I2, the filter I2 is connected with the water tank 23, and the water tank 23 supplies water for the device;
the clamp structure 25 comprises an air cylinder 16, a support 28, a guide rod 29, a pressure rod 30, a tool 31, a water inlet pipe 32 and a water collecting box 26, one end of a pneumatic manual valve 14 is connected with the air cylinder 16 through a throttle valve 15, the other end of the pneumatic manual valve is connected with a factory source air pump, the air cylinder 16 is fixed on the support 28, the guide rod 29 and a piston of the air cylinder 16 are installed in parallel, the piston of the air cylinder 16 pushes the pressure rod 30 to move and press the pressure rod to the tool 31, the tool 31 is used for clamping a blade, water enters the blade through the water inlet pipe 32, and then flows out of the blade and flows into the water collecting box 26.
The method for detecting the water passing amount of the blade of the aero-engine by adopting the device comprises the following steps:
the method comprises the following steps: test for sealing
1. Controlling the pneumatic manual valve 14, and clamping the sealing test blade;
2. setting a pressure given value of 0.198Mpa on an operation interface;
3. and starting a pump group 3, opening a two-position two-way pneumatic valve I6, opening a two-position two-way pneumatic valve III 24, supplying water to the sealing blade, checking whether the blade clamp and a system pipeline leak water or not, and finishing the system tightness test.
Step two: vane flow test
1. Controlling the pneumatic manual valve 14, and clamping the test blade;
2. setting a pressure given value of 0.198Mpa on an operation interface;
3. calling information such as the number of a furnace of the engine, the number of a batch, the number of a task and the like from an operation interface;
4. starting the pump group 3, closing the first two-position two-way pneumatic valve 6, opening the third two-position two-way pneumatic valve 24, supplying water to the test blade, spraying water through the inner cavity and the outer cavity of the blade, collecting the water by the two water collecting boxes 26, and flowing back to the water tank 23 through the two-position three-way pneumatic valve 18;
5. the stop regulating valve 11 carries out automatic PID regulation according to a pressure set value and a feedback value of a pressure sensor 13 in the pipeline;
6. when the system pressure reaches 0.198Mpa +/-0.002 Mpa and the pressure is kept stable for 10 seconds, the two-position three-way pneumatic valve 18 is reversed, the water flow of the inner cavity and the outer cavity of the blade respectively enters the metering measuring cylinder 20 after being shunted by the water receiving box 26, the flow metering is started for 1 minute, the actual pressure value does not meet the condition of +/-0.002 of the set pressure in the metering process for 1 minute, the test is finished, the two-position two-way pneumatic valve 21 is opened, the water is automatically drained, and the step 4 can be repeated after 2 minutes;
7. and after the metering is finished for 1 minute, the two-position three-way pneumatic valve 18 automatically reverses, water flows back to the water tank 23, and the metering is finished. And 3 seconds later, opening the two-position two-way pneumatic valve I6, closing the two-position two-way pneumatic valve III 24, and stopping water inflow of the blades. After the metering is finished for 5 seconds, the computer automatically reads the reading of the magnetostrictive liquid level sensor 19 in the metering cylinder 20 and converts the reading into a one-minute flow value, and the data are automatically stored;
8. and after the metering is finished for 10 seconds, the two-position two-way air-operated valve II 21 is opened, and the metering cylinder 20 drains water. After draining for 2 minutes, closing the two-position two-way pneumatic valve II 21, finishing draining, and waiting for next measurement;
9. completing the test and submitting the military test;
10. and (4) replacing the blade, repeating the step 1 and starting the next blade measurement.
Step three: single side test
And in the unilateral test step, referring to the step II, whether the water flow in the inner cavity and the outer cavity of the engine flows into the water collecting boxes respectively or not is mainly checked by adopting unilateral blades, and the unilateral blades are used for verifying and confirming the correctness of the water collecting device.
As shown in fig. 4, the software control principle: the functions of system control, data acquisition, storage, query and the like in the device are compiled by software VB (visual basic). VB (visual basic) is a universal visual programming language, and is simple and efficient development application software. The method has the advantages of powerful functions, capability of being comparable to Windows professional development tools, high efficiency, low development cost, simplicity, easy learning, stable operation and the like, is convenient for data connection with the existing database in a company due to open database connection, and is friendly and attractive in compiled interface and convenient to operate.
After the test blade is clamped, a target pressure value can be set on the operation interface. And parameter information of the blade, such as part number, work serial number, batch number, furnace number and the like, is called on the touch screen operation interface. After the test is started, a water pump is started to pump water from a water tank, at the moment, a water return valve, namely a first two-position two-way pneumatic valve, is opened, a water inlet valve, namely a third two-position two-way pneumatic valve, is closed, water flow directly returns to the water tank from a two-position three-way pneumatic valve passage, the test is started, the first two-position two-way pneumatic valve is closed, the third two-position two-way pneumatic valve is opened, a pressure regulating valve performs PID regulation according to a set pressure value and a pressure feedback signal of a pressure sensor to enable the water flow pressure at the inlet of a blade to reach a set value, after the metering is started, the first two-position three-way pneumatic valve is reversed, the water quantity enters a measuring cylinder, the metering is started, after the metering is finished, the first two-position two-way pneumatic valve is opened, the third two-position two-way pneumatic valve is closed, a liquid level sensor transmits the liquid level in the measuring cylinder to an industrial personal computer to calculate the flow value through software, after the calculation is finished, a drain valve is opened, the water stored in the measuring cylinder is discharged, ready for the next test. Signals of the pressure sensor, the temperature sensor and the liquid level sensor enter the industrial personal computer after being conditioned by the isolation module. The isolation module plays a role in supplying power to the sensor and isolating signals for the finished product.
As shown in fig. 5, the principle of automatic voltage regulation: the water flow test of the inner cavity of the engine blade needs to be carried out within a certain test pressure range, and the system adopts an automatic regulating valve to realize the automatic regulation of the pressure. 4-20 mA current signals output by a pressure transmitter installed on a pipeline are input into a regulating valve as feedback signals, a target value of test pressure is set in touch screen software, and PID (proportional-integral-derivative) regulation is performed by setting corresponding functional parameters in the regulating valve, so that the pipeline pressure is kept within a certain range, and the smooth performance of a blade water flow test is ensured. In the process of pressure regulation, the PID controller receives a signal of the pressure sensor as a feedback value, compares the feedback value with a set value, and automatically regulates the opening of the pressure regulating valve through the algorithm of the PID controller, so that the actual pressure of water flow in a pipeline is changed, the purpose of automatic pressure regulation is realized, and the control is closed-loop control.
Claims (3)
1. The utility model provides an aeroengine blade water capacity detection device which characterized in that, the device includes: the device comprises a clamp structure (25) and a device structure, wherein the device structure comprises a water collecting box (26), the clamp structure (25) is fixed on the operating platform, and the water collecting box (26) is fixed below the clamp structure (25);
the device structure further comprises a two-position three-way pneumatic valve (18), a magnetostrictive liquid level sensor (19), a metering cylinder (20), a scale (27), a two-position two-way pneumatic valve II (21), a voltage stabilizer (7), a two-position two-way pneumatic valve I (6), a two-position two-way pneumatic valve III (24), a pneumatic manual valve (14), a pump group (3), a water tank (23) and a filter I (2); two tee bend pneumatic valve (18) are installed in receiving water box (26) below through the pipeline, magnetostrictive level sensor (19) insert in measurement graduated flask (20), and scale (27) are installed in measurement graduated flask (20) the place ahead, through the pipeline intercommunication, and two lead to pneumatic valve two (21) and connect measurement graduated flask (20), place at the control cabinet rear stabiliser (7), two lead to pneumatic valve one (6) are connected to pump package (3) delivery port, two lead to pneumatic valve three (24) one end and water tank (23) water inlet and link to each other, and the other end links to each other with the pipeline, and the pipeline links to each other with the blade, pump package (3) water inlet is connected filter (2), and water tank (23) are connected to filter (2).
2. The aircraft engine blade water flow detection device according to claim 1, wherein the clamp structure (25) comprises an air cylinder (16), a support (28), a guide rod (29), a pressure rod (30), a tool (31), a water inlet pipe (32) and a water receiving box (26), one end of the pneumatic manual valve (14) is connected with the air cylinder (16) through a throttle valve (15), the other end of the pneumatic manual valve is connected with a plant source air pump, the air cylinder (16) is fixed on the support (28), the guide rod (29) is installed in parallel with a piston of the air cylinder (16), the piston of the air cylinder (16) pushes the pressure rod (30) to move and press the tool (31), the tool (31) is used for clamping the blade, water enters the blade through the water inlet pipe (32), and then flows out of the blade and flows into the water receiving box (26).
3. The method for detecting the water flow rate of the aero-engine blade by using the device as claimed in claim 1, wherein the device comprises: the method comprises the following steps:
the method comprises the following steps: a seal test comprising:
1.1: controlling a pneumatic manual valve (14), and clamping and sealing the test blade;
1.2: setting a pressure given value of 0.198Mpa on an operation interface;
1.3: starting a pump set (3), opening a first two-position two-way pneumatic valve (6), opening a third two-position two-way pneumatic valve (24), supplying water to the sealing blade, checking whether the blade clamp and a system pipeline leak water or not, and finishing a system tightness test;
step two: a vane flow test comprising:
2.1: controlling a pneumatic manual valve (14) and clamping a test blade;
2.2: setting a pressure given value of 0.198Mpa on an operation interface;
2.3: calling the information of the engine furnace number, the batch number and the task number from an operation interface;
2.4: starting a pump group (3), closing the first two-position two-way pneumatic valve (6), opening the third two-position two-way pneumatic valve (24), supplying water to the tested blade, spraying water through an inner cavity and an outer cavity of the blade, collecting the water by two water collecting boxes (26), and flowing back to a water tank (23) through the two-position three-way pneumatic valve (18);
2.5: the stop regulating valve (11) carries out automatic PID regulation according to a pressure set value and a feedback value of a pressure sensor (13) in the pipeline;
2.6: when the system pressure reaches 0.198Mpa +/-0.002 Mpa and the pressure is kept stable for 10 seconds, the two-position three-way pneumatic valve (18) is reversed, water flow of the inner cavity and the outer cavity of the blade respectively enters the metering cylinders (20) after being shunted by the water receiving box (26), the flow metering is started for 1 minute, the actual pressure value does not meet the condition of +/-0.002 of the set pressure in the metering process for 1 minute, the test is finished, the two-position two-way pneumatic valve (21) is opened, the water is automatically drained, and the step 2.4 can be repeated after 2 minutes;
2.7: after metering is finished for 1 minute, the two-position three-way pneumatic valve (18) automatically reverses, water flows back to the water tank (23), after metering is finished, after 3 seconds, the two-position two-way pneumatic valve I (6) is opened, the two-position two-way pneumatic valve III (24) is closed, water inflow of blades is stopped, after metering is finished for 5 seconds, a computer automatically reads the reading of a magnetostrictive liquid level sensor (19) in the metering cylinder (20) and converts the reading into a one-minute flow value, and data storage is automatically carried out;
2.8: after the metering is finished for 10 seconds, the two-position two-way pneumatic valve II (21) is opened, the metering measuring cylinder (20) drains water, after 2 minutes of draining, the two-position two-way pneumatic valve II (21) is closed, the draining is finished, and the next measurement is waited;
2.9: completing the test and submitting the military test;
2.10: replacing the blade, repeating the step 1, and starting the measurement of the next blade;
step three: a single-sided test trial comprising:
and in the unilateral test step, referring to the step II, whether the water flow in the inner cavity and the outer cavity of the engine flows into the water collecting boxes respectively or not is mainly checked by adopting unilateral blades, and the unilateral blades are used for verifying and confirming the correctness of the water collecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911155185.2A CN110849632B (en) | 2019-11-22 | 2019-11-22 | Device and method for detecting water flow of aero-engine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911155185.2A CN110849632B (en) | 2019-11-22 | 2019-11-22 | Device and method for detecting water flow of aero-engine blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110849632A CN110849632A (en) | 2020-02-28 |
| CN110849632B true CN110849632B (en) | 2022-01-11 |
Family
ID=69603524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911155185.2A Active CN110849632B (en) | 2019-11-22 | 2019-11-22 | Device and method for detecting water flow of aero-engine blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110849632B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578797Y (en) * | 2002-10-23 | 2003-10-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Device for testing water flow volume of turbine blade |
| CN102364310A (en) * | 2011-09-28 | 2012-02-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Automatic measuring system of water discharge of high-pressure turbine work blades and measuring method thereof |
| CN102539153A (en) * | 2010-12-22 | 2012-07-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Device for detecting flow capacity of passage in turbine blade by adopting fixed volume water flow |
| CN202903241U (en) * | 2012-10-08 | 2013-04-24 | 沈阳黎明航空发动机(集团)有限责任公司 | High pressure turbine working blade water flow measurement device |
| CN203414260U (en) * | 2013-05-10 | 2014-01-29 | 西安航空动力股份有限公司 | Water flow test apparatus for turbine blade of aeroengine |
| CN106625329A (en) * | 2016-11-29 | 2017-05-10 | 贵阳中航动力精密铸造有限公司 | Positioning type water flow clamp for turbine blades |
| 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 |
| CN206387571U (en) * | 2017-01-18 | 2017-08-08 | 辽宁工程技术大学 | A kind of blade of aviation engine current amount detecting device |
-
2019
- 2019-11-22 CN CN201911155185.2A patent/CN110849632B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578797Y (en) * | 2002-10-23 | 2003-10-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Device for testing water flow volume of turbine blade |
| CN102539153A (en) * | 2010-12-22 | 2012-07-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Device for detecting flow capacity of passage in turbine blade by adopting fixed volume water flow |
| CN102364310A (en) * | 2011-09-28 | 2012-02-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Automatic measuring system of water discharge of high-pressure turbine work blades and measuring method thereof |
| CN202903241U (en) * | 2012-10-08 | 2013-04-24 | 沈阳黎明航空发动机(集团)有限责任公司 | High pressure turbine working blade water flow measurement device |
| CN203414260U (en) * | 2013-05-10 | 2014-01-29 | 西安航空动力股份有限公司 | Water flow test apparatus for turbine blade of aeroengine |
| CN106625329A (en) * | 2016-11-29 | 2017-05-10 | 贵阳中航动力精密铸造有限公司 | Positioning type water flow clamp for turbine blades |
| 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 |
| CN206387571U (en) * | 2017-01-18 | 2017-08-08 | 辽宁工程技术大学 | A kind of blade of aviation engine current amount detecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110849632A (en) | 2020-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108061624B (en) | The air mass flow and seal tightness test platform and test method of aerial motor spare part | |
| CN104990669B (en) | Surge pressure sensor field calibration device | |
| CN201637554U (en) | Leakage testing system for pressure reducing valve | |
| CN109443662A (en) | A kind of fluidic medium valve tiny leakage test device and method | |
| CN113137409B (en) | Electromagnetic reversing valve test method in ultrahigh pressure environment | |
| CN112324745B (en) | Portable hydraulic system leakage signal acquisition device and acquisition method thereof | |
| CN211292297U (en) | Positive and negative pressure comprehensive test system | |
| CN202547890U (en) | Leakage detection system of fuel injector of gas-liquid linkage internal combustion engine | |
| CN106269727B (en) | A kind of process carrying out circulation flushing to fluid pressure line | |
| CN110849632B (en) | Device and method for detecting water flow of aero-engine blade | |
| CN102278302A (en) | Mechanical seal identification platform and method for reactor coolant pump of million-kilowatt nuclear power station | |
| CN109443663B (en) | Gate valve online pressing system | |
| CN109556874B (en) | Aeroengine actuator cylinder flow strength test device | |
| CN103573752B (en) | On-line air content detection device for hydraulic system | |
| CN214174098U (en) | Automatic detection device for concrete impermeability test | |
| CN104165739A (en) | Method for testing pressure by adoption of vertical and automatic heat collector flow channel pressure test machine | |
| CN105571794A (en) | High pressure electromagnetic valve detection system | |
| CN115371892A (en) | System and method for testing back pressure valve | |
| CN114235380B (en) | Low-pressure high-flow overflow valve test system and test method thereof | |
| CN211178892U (en) | Pressure resistance testing device for water mist component | |
| CN209247278U (en) | A kind of fluidic medium valve tiny leakage test device | |
| CN211013484U (en) | Pneumatic regulating valve testing device | |
| CN109470484B (en) | Water blowing system and water blowing method for engine heat trial | |
| CN208334083U (en) | The online high pressure constant-pressure test system of rubber hose | |
| CN207981793U (en) | Hydraulic system cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |