Adjustable flow channel type high-temperature dynamic seal direct-connection test device
A test device and dynamic sealing technology, applied in the field of ramjet, can solve the problem of lack of simulated real working conditions, and achieve the effect of strong engineering reference value and simple measurement method.
Inactive Publication Date: 2020-04-28
BEIJING POWER MACHINERY INST
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Problems solved by technology
However, the high-temperature dynamic sealing environment of the adjustable flow channel is special, and there is currently a lack of test verification devices that simulate real working conditions, so there is an urgent need for an adjustable flow channel high-temperature dynamic sealing test device that can simulate real flow channels and motion forms.
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Embodiment Construction
[0016] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0017] The invention provides a high temperature dynamic seal direct connection test device with adjustable flow path, such as figure 2 As shown, it includes the main part of the test device consisting of the nozzle 1, the adjustable flow channel 2, the back pressure simulation device 3, the flow measurement device 4, the adjustable actuating mechanism 5 and the temperature measurement device 6, and other matching brackets, Transfer stage and other components; form a complete set of adjustable flow channel high-temperature dynamic sealing test device, and flanges and screws are used to connect the components.
[0018] The outlet of the nozzle 1 is fixedly connected to the inlet of the adjustable flow channel 2, the back pressure simulation device 3 is fixedly connected to the outlet of the adjustable flow channel 2, and the flow measuring device 4 detects...
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The invention discloses an adjustable flow channel type high-temperature dynamic seal direct-connection test device, which comprises a spray pipe, an adjustable flow channel, a back pressure simulation device, a flow measurement device, an adjustable actuating mechanism and a temperature measurement device. An outlet of the spray pipe is fixedly connected with an inlet of the adjustable flow channel; the back pressure simulation device is fixedly connected to the outlet of the adjustable flow channel; the flow measurement device detects the flow of leaked gas in the adjustable flow channel. Anactuating connecting rod of the adjustable actuating mechanism extends into the adjustable flow channel, the height of an adjusting plate of the adjustable flow channel is adjusted, and the temperature measurement device measures the temperature of leaked gas of the adjustable flow channel. Therefore, the real working environment of high-temperature dynamic sealing of the adjustable flow channelcan be simulated, and then the gas leakage amount of the dynamic sealing structure is measured.
Description
technical field [0001] The invention belongs to the technical field of ramjet engines, and in particular relates to a high-temperature dynamic seal direct-connection test device with an adjustable flow path. Background technique [0002] In the wide-speed range air-breathing engine, the high-temperature dynamic sealing structure of the adjustable flow channel is arranged between the movable adjusting plate and the side wall plate, such as figure 1 As shown, 01 is the movable adjustment plate, 02 is the side wall plate, 03 is the high-temperature dynamic seal, 04 is the flow channel cavity that can adjust the intake and exhaust of high-temperature and high-pressure gas, and 05 is the equipment cavity for installing the adjustment mechanism. 06 is the up and down movement direction of the movable adjustment plate. The function of the high-temperature dynamic seal is to prevent the high-temperature and high-pressure gas in the channel cavity 04 from leaking into the equipment ...
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IPC IPC(8): G01M3/26G01M3/02
CPCG01M3/025G01M3/26
Inventor 杜江毅马威猛杨晖刘胜朱守梅满延进
Owner BEIJING POWER MACHINERY INST