CN117288479A - Test platform for measuring reverse thrust of spray pipe - Google Patents
Test platform for measuring reverse thrust of spray pipe Download PDFInfo
- Publication number
- CN117288479A CN117288479A CN202311268974.3A CN202311268974A CN117288479A CN 117288479 A CN117288479 A CN 117288479A CN 202311268974 A CN202311268974 A CN 202311268974A CN 117288479 A CN117288479 A CN 117288479A
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- culvert
- channel
- pipeline
- air inlet
- connotation
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- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 239000007921 spray Substances 0.000 title description 2
- 238000004088 simulation Methods 0.000 claims abstract description 35
- 238000004891 communication Methods 0.000 claims abstract description 15
- 244000126211 Hericium coralloides Species 0.000 claims description 29
- 238000005259 measurement Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 230000003584 silencer Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000030279 gene silencing Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- 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
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
Abstract
The application belongs to the field of aeroengine tests, and particularly relates to a test platform for measuring jet pipe reverse thrust, and an air supply device comprises an outer culvert pipe and an inner culvert pipe; the engine simulation pipeline is fixed on the rack, a plurality of force measuring devices are arranged between the engine simulation pipeline and the rack, the engine simulation pipeline comprises a first culvert channel and a first culvert channel, the first culvert channel is in non-contact communication with the culvert pipeline through an culvert air inlet, and the first culvert channel is in non-contact communication with the culvert pipeline through an culvert air inlet; a reverse thrust test piece is arranged at the downstream of the engine simulation pipeline; the reverse-pushing test piece is provided with a second culvert channel and a second culvert channel, the second culvert channel is communicated with the first culvert channel, and the second culvert channel is communicated with the first culvert channel; and the exhaust device is communicated with the second connotation channel and the second connotation channel of the reverse thrust test piece in a non-contact manner and is used for exhausting the exhaust gas of the reverse thrust test piece out of the chamber.
Description
Technical Field
The application belongs to the field of aeroengine tests, and particularly relates to a test platform for measuring jet pipe thrust reverser.
Background
With the rapid development of large-scale airplanes in China, the requirements of China on a large bypass-ratio turbofan engine are more and more urgent. At present, almost all advanced large-scale aircrafts adopt an engine thrust reverser to decelerate, and the thrust reverser can increase the quality and design complexity of an engine, but has the advantages of unique integration level, high reliability, strong adaptability to different engine working conditions and the like. The development of the reverse thrust device requires a great deal of basic research and engineering application research, wherein the model blowing test is one of important research contents, and the reverse thrust device model blowing tester plays an important role in the development of the reverse thrust device. Because the test bed is not used in China, the comprehensive performance test research of the reverse thrust device cannot be carried out. In order to improve the performance of the reverse thrust device and exert the advantages of the reverse thrust device to the maximum extent, the invention aims to self-develop the test bed of the reverse thrust device of the turbofan engine, mainly discusses the working principle, the composition and the key technology thereof, promotes the sustainable development of the exhaust of the turbofan engine with the large bypass ratio, and further improves the professional status of the exhaust field of the turbofan engine with the large bypass ratio in China.
Disclosure of Invention
In order to solve the above-mentioned problem, the present application provides a test platform for jet pipe thrust reversal measurement, including:
the air supply device comprises an outer culvert pipe and an inner culvert pipe;
the engine simulation pipeline is fixed on the rack, a plurality of force measuring devices are arranged between the engine simulation pipeline and the rack, the engine simulation pipeline comprises a first culvert channel and a first culvert channel, the first culvert channel is in non-contact communication with the culvert pipeline through an culvert air inlet, and the first culvert channel is in non-contact communication with the culvert pipeline through an culvert air inlet; a reverse thrust test piece is arranged at the downstream of the engine simulation pipeline;
the reverse-pushing test piece is provided with a second culvert channel and a second culvert channel, the second culvert channel is communicated with the first culvert channel, and the second culvert channel is communicated with the first culvert channel;
and the exhaust device is communicated with the second connotation channel and the second connotation channel of the reverse thrust test piece in a non-contact manner and is used for exhausting the exhaust gas of the reverse thrust test piece out of the chamber.
Preferably, the non-contact communication mode of the first culvert channel and the culvert pipe is specifically as follows:
the outlet end of outer culvert pipeline has the clearance ground to be arranged outer culvert air inlet department, and the outside of outer culvert pipeline has the installation limit, the installation limit has the groove, and first comb tooth ring seal mounting is in the groove, first comb tooth ring outside surface has the peripheral comb tooth structure, comb tooth structure forms non-contact labyrinth seal structure with the surface of engine simulation pipeline.
Preferably, the mounting edge is connected with a first adjusting screw in a threaded manner, the tail end of the first adjusting screw is connected with the first comb ring in a relatively rotatable manner, and the relative position of the first adjusting screw and the mounting edge is adjusted so as to adjust the distance between the first comb ring and the outer surface of the engine simulation pipeline.
Preferably, the external air inlet comprises a plurality of air holes with central axes perpendicular to the axial direction of the engine simulation pipeline.
Preferably, the non-contact communication mode of the first connotation channel and the connotation pipeline is specifically as follows:
the outlet end of the connotation pipeline is provided with an outlet plug, the end face of the engine simulation pipeline is provided with an connotation air inlet which is inserted into the connotation pipeline and axially parallel to the engine simulation pipeline, and the part of the outlet plug inserted into the first connotation channel is provided with a plurality of air holes with central axes perpendicular to the axial direction of the engine simulation pipeline;
the edge of connotation air inlet has the mount pad, have the annular on the mount pad, second comb tooth ring seal mounting is in the groove, second comb tooth ring outside surface has circumferential comb tooth structure, comb tooth structure forms non-contact labyrinth seal structure with the surface of export plug.
Preferably, the section of the connotation air inlet is rectangular, the outlet plug is rectangular with the same shape at the position of the connotation air inlet, the second comb tooth ring comprises four comb racks with the lengths corresponding to the side lengths of the connotation air inlet, and the adjacent comb racks are connected through lap joints.
Preferably, the mounting seat is connected with a second adjusting screw in a threaded manner, the tail end of the second adjusting screw is connected with the second comb ring in a relatively rotatable manner, and the relative position of the second comb ring and the mounting seat is adjusted so as to adjust the distance between the second comb ring and the outer surface of the outlet plug.
Preferably, the air inlet end of the outer culvert pipe comprises a plurality of outer culvert branch pipes, and flow pore plates with different air inlet flow measuring ranges are respectively arranged on the outer culvert branch pipes.
Preferably, a pressure sensor is arranged at the positions of the second comb tooth ring and the first comb tooth ring, the back-pushing test piece is replaced by the standard piece to measure the exhaust flow, the leakage flow is calculated based on the intake flow and the exhaust flow, the relation between the leakage flow and the pressure is obtained through the pressure of the pressure sensor, and the calibration of the leakage flow is realized.
Preferably, the exhaust device comprises an outer culvert exhaust device which is correspondingly and non-contact connected with the second outer culvert channel, an inner culvert exhaust device which is correspondingly and non-contact connected with the second inner culvert channel, an exhaust silencer and a cooling water system, a small gap is arranged between an air inlet of the outer culvert exhaust device and an air outlet of the second outer culvert channel, and the gas of the second outer culvert channel is discharged after being discharged into the outer culvert exhaust device and guided by a volute structure and a guide vane which are arranged on the outer culvert exhaust device.
The advantages of the present application include: providing a first set of reverse thrust device comprehensive performance test bench which meets the requirements of an independent culvert test, an connotation test or a common test of connotation and connotation, and the non-contact design of connotation pipelines and connotation pipelines enables the test device to be provided with force sensors in multiple directions; the volute is designed into a guide vane structure, so that the pulsation and flow resistance of high-speed airflow are reduced, and the airflow is smoothly discharged.
Drawings
FIG. 1 is a schematic diagram of a thrust reverser test platform according to a preferred embodiment of the present application;
FIG. 2 is a cross-sectional view of a preferred embodiment seal of the present application;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a diagram of a grate structure pressure test;
FIG. 5 is a diagram of a test stand force measurement layout according to a preferred embodiment of the present application;
FIG. 6 is a schematic illustration of an outer culvert exhauster in accordance with a preferred embodiment of the present application;
FIG. 7 is a diagram of an engine simulated plumbing installation in accordance with a preferred embodiment of the present application.
Detailed Description
In order to make the technical solution of the present application and the advantages thereof more apparent, the technical solution of the present application will be more fully described in detail below with reference to the accompanying drawings, it being understood that the specific embodiments described herein are only some of the embodiments of the present application, which are for explanation of the present application, not for limitation of the present application. It should be noted that, for convenience of description, only the portion relevant to the present application is shown in the drawings, and other relevant portions may refer to a general design, and without conflict, the embodiments and technical features in the embodiments may be combined with each other to obtain new embodiments.
Furthermore, unless defined otherwise, technical or scientific terms used in the description of this application should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," "outer," and the like as used in this description are merely used to indicate relative directions or positional relationships, and do not imply that a device or element must have a particular orientation, be configured and operated in a particular orientation, and that the relative positional relationships may be changed when the absolute position of the object being described is changed, and thus should not be construed as limiting the present application. The terms "first," "second," "third," and the like, as used in the description herein, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance to the various components. The use of the terms "a," "an," or "the" and similar referents in the description of the invention are not to be construed as limited in number to the precise location of at least one. As used in this description, the terms "comprises," "comprising," or the like are intended to cover an element or article that appears before the term and that is listed after the term and its equivalents, without excluding other elements or articles.
Furthermore, unless specifically stated and limited otherwise, the terms "mounted," "connected," and the like in the description herein are to be construed broadly and refer to either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements, and the specific meaning of the two elements can be understood by a person skilled in the art according to specific situations.
The application provides a test platform for jet pipe thrust reversal measurement, include: it comprises the following steps: an outer culvert pipe 1; an inclusion pipe 2; a sealing device 3; a stand 4; an engine simulation pipe 5; a reverse pushing test piece 6; an outer culvert exhauster 7; an inclusion exhauster 8; a cooling water system 9; an exhaust muffler 10; an outer culvert pipe 11; an outer culvert pipe 12; a flow calibration tube 13; an inclusion pipe 14; a high-pressure oil supply system 15; an intake air distributor 16; the heat sink 17, the sealing device 3 in turn comprises a first comb ring 33, a first adjusting screw 31, a second adjusting screw 22 and a second comb ring 21, a rectifying plate 32 for rectifying.
The engine simulation pipeline 5 is fixed on the rack 4, a plurality of force measuring devices are arranged between the engine simulation pipeline 5 and the rack 4, the engine simulation pipeline 5 comprises a first culvert channel 51 and a first culvert channel 52, the first culvert channel 51 is in non-contact communication with the culvert pipeline 1 through an culvert air inlet, and the first culvert channel 52 is in non-contact communication with the culvert pipeline 2 through an culvert air inlet; a reverse thrust test piece 6 is arranged at the downstream of the engine simulation pipeline 5;
the reverse-push test piece 6 is provided with a second culvert channel and a second culvert channel, the second culvert channel is communicated with the first culvert channel 51, and the second culvert channel is communicated with the first culvert channel 52;
and the exhaust device is communicated with the second connotation channel and the second connotation channel of the reverse thrust test piece 6 in a non-contact way, and exhausts the exhaust gas of the reverse thrust test piece 6 out of the chamber.
Preferably, the non-contact communication mode between the first culvert channel 51 and the culvert pipe 1 is specifically:
the outlet end of the outer culvert pipe 1 is arranged at the outer culvert air inlet in a clearance way, the outer side of the outer culvert pipe 1 is provided with a mounting edge, the mounting edge is provided with a groove, a first comb tooth ring 33 is arranged in the groove in a sealing way, the outer side surface of the first comb tooth ring 33 is provided with a circumferential comb tooth structure, and the comb tooth structure and the outer surface of the engine simulation pipe 5 form a non-contact labyrinth sealing structure.
Preferably, the mounting edge is connected with a first adjusting screw 31 in a threaded manner, the tail end of the first adjusting screw 31 is connected with the first comb ring 33 in a relatively rotatable manner, and the relative position of the first adjusting screw 31 and the mounting edge is adjusted so as to adjust the distance between the first comb ring 33 and the outer surface of the engine simulation pipeline 5.
Preferably, the outer culvert air inlet comprises a plurality of air holes with central axes perpendicular to the axial direction of the engine simulation pipeline 5.
Preferably, the non-contact communication manner between the first connotation channel 52 and the connotation pipe 2 is specifically:
the outlet end of the connotation pipeline 2 is provided with an outlet plug 23, the end face of the engine simulation pipeline 5 forms an connotation air inlet which is inserted into the connotation pipeline 2 and axially parallel to the engine simulation pipeline 5, and the part of the outlet plug 23 inserted into the first connotation channel 52 is provided with a plurality of air holes with central axes perpendicular to the axial direction of the engine simulation pipeline 5;
the edge of connotation air inlet has the mount pad, have the annular on the mount pad, second comb ring 21 sealing installation is in the groove, second comb ring 21 outside surface has circumferential comb tooth structure, comb tooth structure forms non-contact labyrinth seal structure with the surface of export plug 23, has arranged the heater on the dynamometry rack for the thermal state dynamometry is experimental.
Preferably, the section of the connotation air inlet is rectangular, the outlet plug 23 is rectangular with the same shape at the position of the connotation air inlet, the second comb tooth ring 21 comprises four comb racks with the length corresponding to the side length of the connotation air inlet, and the adjacent comb racks are connected through lap joints.
Preferably, the mounting seat is in threaded connection with a second adjusting screw 22, the tail end of the second adjusting screw 22 is in relatively rotatable connection with the second comb ring 21, and the relative position of the second comb ring 21 and the mounting seat is adjusted so as to adjust the distance between the second comb ring 21 and the outer surface of the outlet plug 23.
And when rated load is applied to the bench 4 and the thrust test piece 6 in the axial direction, the pitching direction and the yaw direction, the circumferential absolute displacement of the pipeline at the sealing positions of the two ends of the comb teeth is not more than 1mm. In order to achieve the index, the axial force measuring assemblies are 1 group and are arranged right below the pipeline; the yaw force measuring assemblies are two groups and have the same elevation as the center of the pipeline; the pitch force assemblies are in 3 groups. As shown in FIG. 5, the bearing pier adopts a hollow rectangular section structure, and under the condition of maximum load of the test force measuring bench, the absolute displacement of the front end of the movable frame pipeline is 0.8mm at maximum, and the structure meets the requirement of the sealing gap of the comb teeth.
Preferably, the air inlet end of the outer culvert pipe 1 comprises a plurality of outer culvert branch pipes, and flow pore plates for measuring different air inlet flow ranges are respectively arranged on the outer culvert branch pipes, for example, the outer culvert pipe 1 is provided with two pipelines with different pipe diameters, namely pore plates with two flow ranges, so that the test requirements of different air inlet flows are met; the flow pore plates are arranged on the connotation pipelines 2, so that the intake flow of connotation can be accurately measured, different flow pore plates have different measuring ranges, and the hierarchical setting can realize the control of multiple measuring ranges.
Preferably, a pressure sensor is installed at the positions of the second comb ring 21 and the first comb ring 33, the exhaust flow is measured by replacing the thrust reverser 6 with a standard part, the leakage flow is calculated based on the intake flow and the exhaust flow, and the relationship between the leakage flow and the pressure is obtained by the pressure of the pressure sensor, so that the calibration of the leakage flow is realized.
Preferably, the exhaust device comprises an culvert exhaust device 8, an exhaust silencer 10 and a cooling water system 9, wherein the culvert exhaust device 7 is correspondingly in non-contact connection with the second culvert channel, the culvert exhaust device 8 is correspondingly in non-contact connection with the second culvert channel, a small gap is reserved between an air inlet of the culvert exhaust device 7 and an air outlet of the second culvert channel, and gas of the second culvert channel is discharged after being discharged into the culvert exhaust device 7 and guided by a volute provided by the culvert exhaust device 8: the connotation is direct exhaust and is a conventional direct exhaust pipeline; as shown in fig. 6, it can be seen that the exhaust gas flows are all led to flow backward after passing through the reverse thrust volute, which means that the exhaust gas can be smoothly discharged out of the factory building. 10 cooling water system 9: in a thermal state test, cooling the high-temperature exhaust gas by cooling water, and then entering a silencing tower;
furthermore, the method further comprises: exhaust silencer 10: the exhaust silencing tower is mainly used for reducing the speed of high-speed exhaust, reducing exhaust noise, meeting the environmental standard and exhausting the exhaust silencing tower into the atmosphere; outer culvert big pipe 11: the culvert large pipeline is used for the culvert large flow test; outer culvert pipe 12: the culvert small pipeline is used for the culvert small flow test; flow calibration tube 13: the method is used for calibrating the gap gas leakage quantity at the comb teeth; connotation conduit 14: is used for connotation air intake; high-pressure oil supply system 15: when the fuel is used for a thermal state test, the fuel is supplied to the heater; intake air distributor 16: the distributor is a pressure stabilizing box and is mainly used for stabilizing pressure of incoming air, so that the requirements of uniform and stable air inflow are met. Radiator 17: when the test piece needs low-temperature air intake, a radiator pipeline can be opened to perform convection heat exchange with the external environment, so that the air intake temperature is reduced.
The advantages of the present application include: the comprehensive performance test bench for the first set of reverse thrust device is provided, and the comprehensive performance test bench meets the requirements of an independent culvert test, an connotation test or a common test of connotation and connotation, connotation pipelines and non-contact design of connotation pipelines so that the test device can be provided with force sensors in multiple directions.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A test platform for jet pipe thrust reverser measurement, comprising:
the air supply device comprises an outer culvert pipe (1) and an inner culvert pipe (2);
the engine simulation pipeline (5) is fixed on the rack (4), a plurality of force measuring devices are arranged between the engine simulation pipeline (5) and the rack (4), a first culvert channel (51) and a first culvert channel (52) are arranged in the engine simulation pipeline (5), the first culvert channel (51) is in non-contact communication with the culvert pipeline (1) through an culvert air inlet, and the first culvert channel (52) is in non-contact communication with the culvert pipeline (2) through an culvert air inlet; a reverse thrust test piece (6) is arranged at the downstream of the engine simulation pipeline (5);
the reverse-pushing test piece (6) is provided with a second culvert channel and a second culvert channel, the second culvert channel is communicated with the first culvert channel (51), and the second culvert channel is communicated with the first culvert channel (52);
and the exhaust device is in non-contact communication with the second culvert channel and the second culvert channel of the reverse thrust test piece (6) and is used for exhausting the exhaust gas of the reverse thrust test piece (6) out of the chamber.
2. Test bench for jet pipe thrust reverser measurement according to claim 1, characterized in that the non-contact communication between the first culvert channel (51) and the culvert pipe (1) is in particular:
the outlet end of outer culvert pipeline (1) has the clearance ground to be arranged outer culvert air inlet department, and the outside of outer culvert pipeline (1) has the installation limit, the installation limit has the groove, and first comb tooth ring (33) sealing installation is in the groove, first comb tooth ring (33) outside surface has the peripheral comb tooth structure, comb tooth structure forms non-contact labyrinth seal structure with the surface of engine simulation pipeline (5).
3. A test bench for jet pipe thrust reverser measurement according to claim 2, characterized in that the mounting edge is screwed with a first adjusting screw (31), the end of the first adjusting screw (31) is rotatably connected with the first comb ring (33), and the relative position of the first adjusting screw (31) and the mounting edge is adjusted so as to adjust the distance between the first comb ring (33) and the outer surface of the engine simulation pipe (5).
4. A test bench for jet thrust reverser measurement according to claim 1, characterized in that the culvert air inlet comprises a plurality of air holes with central axes perpendicular to the axial direction of the engine simulation pipe (5).
5. Test bench for jet pipe thrust reverser measurement according to claim 1, characterized in that the non-contact communication between the first connotation channel (52) and the connotation channel (2) is in particular:
the outlet end of the connotation pipeline (2) is provided with an outlet plug (23), the end face of the engine simulation pipeline (5) forms an connotation air inlet which is inserted into the connotation pipeline (2) and axially parallel to the engine simulation pipeline (5), and the part of the outlet plug (23) inserted into the first connotation channel (52) is provided with a plurality of air holes with central axes perpendicular to the axial direction of the engine simulation pipeline (5);
the edge of connotation air inlet has the mount pad, have the annular on the mount pad, second comb tooth ring (21) seal mounting is in the groove, second comb tooth ring (21) outside surface has circumferential comb tooth structure, comb tooth structure forms non-contact labyrinth seal structure with the surface of outlet plug (23).
6. The test platform for jet pipe thrust reverser measurement according to claim 1, wherein the section of the inclusion air inlet is rectangular, the outlet plug (23) is rectangular with the same shape at the position of the inclusion air inlet, the second comb tooth ring (21) comprises four comb racks with the length corresponding to the side length of the inclusion air inlet, and the adjacent comb racks are connected through lap joints.
7. The test bench for jet pipe thrust reverser measurement according to claim 6, characterized in that a second adjusting screw (22) is screwed on the mounting seat, the tail end of the second adjusting screw (22) is connected with the second comb ring (21) in a relatively rotatable manner, and the relative position of the second comb ring (21) and the mounting seat is adjusted so as to adjust the distance between the second comb ring (21) and the outer surface of the outlet plug (23).
8. The test platform for jet pipe thrust reverser measurement according to claim 1, wherein the air inlet end of the outer culvert pipe (1) comprises a plurality of outer culvert branch pipes, and flow pore plates with different air inlet flow measurement ranges are respectively arranged on the outer culvert branch pipes.
9. The test platform for jet pipe thrust reverser measurement according to claim 1, wherein a pressure sensor is arranged at the positions of the second comb tooth ring (21) and the first comb tooth ring (33), the exhaust flow is measured by replacing a thrust reverser test piece (6) with a standard piece, the leakage flow is calculated based on the intake flow and the exhaust flow, and the relation between the leakage flow and the pressure is obtained through the pressure of the pressure sensor, so that the calibration of the leakage flow is realized.
10. The test platform for jet pipe thrust reverser measurement according to claim 1, wherein the exhaust device comprises an outer culvert exhaust device (7) which is in corresponding non-contact connection with the second outer culvert channel, an inner culvert exhaust device (8) which is in corresponding non-contact connection with the second inner culvert channel, an exhaust silencer (10) and a cooling water system (9), a small gap is arranged between an air inlet of the outer culvert exhaust device (7) and an air outlet of the second outer culvert channel, and the air of the second outer culvert channel is discharged after being discharged into the outer culvert exhaust device (7) through a volute structure and guide vanes of the outer culvert exhaust device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311268974.3A CN117288479A (en) | 2023-09-28 | 2023-09-28 | Test platform for measuring reverse thrust of spray pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311268974.3A CN117288479A (en) | 2023-09-28 | 2023-09-28 | Test platform for measuring reverse thrust of spray pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117288479A true CN117288479A (en) | 2023-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311268974.3A Pending CN117288479A (en) | 2023-09-28 | 2023-09-28 | Test platform for measuring reverse thrust of spray pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117288479A (en) |
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2023
- 2023-09-28 CN CN202311268974.3A patent/CN117288479A/en active Pending
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