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Leakage air mass flow measurement device for aeroengine seal test

An aero-engine and sealing test technology, applied in the direction of mass flow measurement device, indirect mass flowmeter, etc., can solve the problems of inability to measure, with oil mist, leaking gas mass flow is small, etc., to avoid potential safety hazards, avoid errors, Guaranteed accuracy

Active Publication Date: 2018-07-06
AECC SICHUAN GAS TURBINE RES INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] Provides a leakage gas mass flow measurement device for aero-engine sealing tests, which effectively solves the problem that such tests cannot be measured due to small leakage gas mass flow and oil mist

Method used

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  • Leakage air mass flow measurement device for aeroengine seal test

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Embodiment Construction

[0020] The specific implementation mode is divided into two parts, the structure construction and the testing process, and the present invention will be described in detail below in conjunction with the accompanying drawings:

[0021] 1. Structure construction

[0022] refer to figure 2 and image 3 , figure 2 It is the front view of the device used for measuring the mass flow rate of leakage gas in the sealing test of aero-engine, image 3 It is a top view of the structure of the leakage gas mass flow measurement device used for the sealing test of the aeroengine. It mainly includes a gas collector 12, a water tank 2, a solenoid valve group composed of a normally closed solenoid valve 14 and a normally open solenoid valve 17, a gas collector deflation solenoid valve 4, a magnetostrictive liquid level gauge 3, an armored thermocouple 8 and some trachea. The gas collector 12 is placed inside the water tank 2, and is about 300mm lower than the water tank. The solenoid val...

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Abstract

The invention belongs to the design technology of test devices, and particularly relates to a leakage air mass flow measurement device for an aeroengine seal test. The leakage air mass flow measurement device for the aeroengine seal test includes a water tank 2, an air collection barrel 12, a magnetostriction liquid level sensor 3, an air collection barrel deflation electromagnetic-valve 4, a sheathed thermocouple 8, a normally-closed electromagnetic valve 14, a normally-opened electromagnetic valve 17 and a timer 24, wherein the normally-closed electromagnetic valve 14 and the normally-openedelectromagnetic valve 17 form an electromagnetic valve set which is mainly used for controlling the flow direction of leakage air. The device can efficiently meet the measurement requirement of the leakage air mass flow in the aeroengine seal test, and the sealing capacity of a sealing device can be accurately known. The device is simple in structure, has no special requirements on materials of parts, and is convenient to install and maintain.

Description

technical field [0001] The invention belongs to the construction technology of measuring devices, and in particular relates to a leaking gas mass flow measuring device for aeroengine sealing tests. Background technique [0002] Advanced sealing technology plays a key role in many performances of aeroengines (such as fuel consumption rate, flight cost, thrust-to-weight ratio, life of the engine and its components, etc.), especially the air path sealing, which directly affects the engine boost ratio and efficiency. improve. [0003] At present, the theoretical knowledge of aero-engine sealing technology is insufficient, and the design experience is still lacking. The design of the sealing device needs a large number of tests to verify, and the sealing effect can be verified through tests, so as to promote the optimization and improvement of the sealing structure. However, the leakage of the sealing device of the aero-engine is relatively small, and there is no mass flow meter...

Claims

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Application Information

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IPC IPC(8): G01F1/86
CPCG01F1/86
Inventor 刘亚军鲁东胜张鹏岳晓晶林尚博
Owner AECC SICHUAN GAS TURBINE RES INST
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