Online adjustable gradient heating device for aeroengine wheel disc strength test
A technology for aero-engine and strength testing, which is used in engine testing, measuring devices, internal combustion engine testing, etc. It can solve the problems of small heating gradient and inability to adjust the cooling effect online, saving manpower and material resources, and eliminating the need for repeated parking adjustments. Cooling water jacket structure, the effect of improving test efficiency
Pending Publication Date: 2022-03-04
AECC SICHUAN GAS TURBINE RES INST
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Problems solved by technology
[0004] In order to solve the above problems, the present invention proposes a gradient heating device that can quickly adjust the cooling effect online, aiming at the problem that the heating gradient of the existing heating device for the strength test of the wheel disk is small, and the cooling effect cannot be adjusted online through the cooling of the cooling water jacket. temperature device
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[0025] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the following embodiments will specifically illustrate the heating device provided by the present invention in conjunction with the accompanying drawings.
[0026] In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this Inventions and simplified descriptions do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiti...
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The invention provides an on-line adjustable gradient heating device for an aero-engine wheel disc strength test, the on-line adjustable gradient heating device comprises a furnace body and a heating element, the bottom of the furnace body is provided with a heat dissipation through hole and a trepanning adjusting mechanism, the trepanning adjusting mechanism is arranged at the lower end of the heat dissipation through hole, and the trepanning adjusting mechanism comprises a heat dissipation baffle and a position adjusting sub-mechanism. A hole is formed in the bottom of the heating device, and the size of the hole formed in the heat dissipation baffle is controlled through the stepping motor, so that the radiation heat dissipation amount of the test piece is controlled; as the test is carried out in a vacuum environment, for a high-temperature test piece rotating at a high speed, radiation heat dissipation on a disk center and a radial plate of the test piece is a main heat exchange mode; the holes are formed in the bottom of the furnace body, so that the same heat dissipation effect as that of a cooling water jacket can be achieved, and different test pieces and different temperature field requirements can be met; the heat dissipation amount can be adjusted by adjusting the size of the open hole on line, and the effect of controlling the gradient of the temperature field of the test piece in the test process is achieved.
Description
technical field [0001] The invention relates to an aero-engine test technology, in particular to an air intake device for a double-combustion chamber ignition and co-flame test of a heavy-duty gas turbine. Background technique [0002] The aero-engine disc is a key part of the engine, and the damage of the disc will seriously affect the performance of the engine, endanger the flight safety, and cause extremely serious consequences. Wheel strength and reliability test By simulating the speed and temperature load of the wheel on the wheel strength tester, the static strength of the key parts of the wheel under a certain stress level / stress range is assessed and the safe cycle life is given. [0003] The temperature load is one of the main loads for wheel strength assessment, and the wheel strength test should simulate the gradient temperature field with low center temperature and high edge temperature in the working state of the engine as much as possible on the wheel strength...
Claims
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Login to View More IPC IPC(8): G01M15/04G01M15/02G01M13/00
CPCG01M15/04G01M15/02G01M13/00
Inventor 高文辉岳晓晶孙文辉
Owner AECC SICHUAN GAS TURBINE RES INST