CN-115753115-B - Method for detecting lubricating oil leakage quantity of turbine shaft aero-engine accessory case exhaust device

Abstract

The invention relates to the technical field of aeroengines, in particular to a method for detecting lubricating oil leakage quantity of a turboshaft aeroengine accessory case exhaust device, which comprises the following steps of a, manufacturing a detection device b, connecting an engine connecting end connected with an air pipe with an exhaust hole of an engine accessory case; and e, calculating the oil leakage quantity of the engine accessory case exhaust device through the weight of the oil sliding quantity and the working time of the engine. The method can measure the lubricating oil leakage quantity of the turbine shaft aircraft engine accessory case exhaust device, so that the lubricating oil leakage quantity parameter of the engine accessory case exhaust device is obtained.

Inventors

• Yang Mianbo
• XIE DONG
• MA ANQUAN
• WANG WENGUO
• LUO RONGHUI
• MA HONGJIE

Assignees

• 国营川西机器厂

Dates

Publication Date

20260505

Application Date

20221124

Claims (2)

1. 1. The method for detecting the lubricating oil leakage amount of the turboshaft aeroengine accessory case exhaust device is characterized by comprising the following steps of: a. Manufacturing a detection device, wherein the detection device comprises a connecting air pipe, an oil-gas separator (1) and a lubricating oil collecting box, the oil-gas separator (1) is provided with an oil-gas inlet (2), an air outlet (3) and a lubricating oil outlet (4), the oil-gas inlet (2) is positioned in the middle of the oil-gas separator (1), the air outlet (3) is positioned at the top of the oil-gas separator (1), the lubricating oil outlet (4) is positioned at the bottom of the oil-gas separator (1), one end of the connecting air pipe is an engine connecting end, the other end of the connecting air pipe is connected with the oil-gas inlet (2), and the lubricating oil collecting box is connected with the lubricating oil outlet (4); b. Connecting the engine connecting end of the connecting air pipe with the exhaust hole of the engine accessory case; c. The engine is subjected to an operation test, oil gas generated in the test enters an oil-gas separator (1) through a connecting gas pipe, the oil-gas separator (1) separates the entering oil gas, air is discharged from an air outlet (3), and lubricating oil is discharged from a lubricating oil outlet (4) and is collected in a lubricating oil collecting box; d. measuring the weight of the lubricating oil in the lubricating oil collecting box after the engine working test is finished; e. And calculating the lubricating oil leakage quantity of the engine accessory case exhaust device through the weight of the lubricating oil quantity and the working time of the engine.
2. 2. The method for detecting the lubricating oil leakage amount of the exhaust device of the accessory case of the turboshaft aeroengine according to claim 1, wherein the connecting air pipe is a hose.

Description

Method for detecting lubricating oil leakage quantity of turbine shaft aero-engine accessory case exhaust device Technical Field The invention relates to the technical field of aeroengines, in particular to a method for detecting lubricating oil leakage of a turboshaft aeroengine accessory case exhaust device. Background The consumption of engine lubricating oil is a main performance parameter index of an aeroengine, and is also an important acceptance index in the test run process of the aeroengine, and the main reason for causing the large consumption of the engine lubricating oil is lubricating oil leakage, so that the lubricating oil leakage of main parts of the engine needs to be detected. At present, an exhaust hole is arranged at the exhaust device of the accessory case of the turboshaft aero-engine, and the exhaust hole also has the condition of removing lubricating oil, namely the condition of lubricating oil leakage exists, but no detection method for the oil leakage of the exhaust device of the accessory case exists at home and abroad, so that the assessment of the oil leakage of the exhaust device of the accessory case of the engine is influenced, and the assessment of the overall performance parameters of the engine is further influenced. Disclosure of Invention The invention solves the technical problem of providing a method for detecting the lubricating oil leakage quantity of the exhaust device of the accessory case of the turboshaft aero-engine, which can realize the measurement of the lubricating oil leakage quantity of the exhaust device of the accessory case of the turboshaft aero-engine. The technical scheme adopted by the invention for solving the technical problems is that the method for detecting the lubricating oil leakage quantity of the exhaust device of the accessory case of the turboshaft aeroengine comprises the following steps: a. Manufacturing a detection device, wherein the detection device comprises a connecting air pipe, an oil-gas separator and a lubricating oil collecting box, the oil-gas separator is provided with an oil-gas inlet, an air outlet and a lubricating oil outlet, one end of the connecting air pipe is an engine connecting end, the other end of the connecting air pipe is connected with the oil-gas inlet, and the lubricating oil collecting box is connected with the lubricating oil outlet; b. Connecting the engine connecting end of the connecting air pipe with the exhaust hole of the engine accessory case; c. the engine is subjected to a working test, oil gas generated in the test enters an oil-gas separator through a connecting air pipe, the oil-gas separator separates the entered oil gas, air is discharged from an air outlet, and lubricating oil is discharged from a lubricating oil outlet and is collected in a lubricating oil collecting box; d. measuring the weight of the lubricating oil in the lubricating oil collecting box after the engine working test is finished; e. And calculating the lubricating oil leakage quantity of the engine accessory case exhaust device through the weight of the lubricating oil quantity and the working time of the engine. Further, the connecting air pipe is a hose. Further, the oil gas inlet is positioned in the middle of the oil-gas separator, the air outlet is positioned at the top of the oil-gas separator, and the lubricating oil outlet is positioned at the bottom of the oil-gas separator. The method has the beneficial effects that the method can realize the measurement of the lubricating oil leakage quantity of the turboshaft aircraft engine accessory case exhaust device, so as to obtain the parameter of the lubricating oil leakage quantity of the engine accessory case exhaust device. Drawings FIG. 1 is a schematic view of the structure of an oil-gas separator; The device is characterized by comprising an oil-gas separator 1, an oil-gas inlet 2, an air outlet 3 and a lubricating oil outlet 4. Detailed Description The invention is further described below with reference to the drawings and the detailed description. As shown in fig. 1, the method for detecting the lubricating oil leakage amount of the exhaust device of the accessory case of the turboshaft aeroengine comprises the following steps: a. manufacturing a detection device, wherein the detection device comprises a connecting air pipe, an oil-gas separator 1 and a lubricating oil collecting box, the oil-gas separator 1 is provided with an oil-gas inlet 2, an air outlet 3 and a lubricating oil outlet 4, one end of the connecting air pipe is an engine connecting end, the other end of the connecting air pipe is connected with the oil-gas inlet 2, and the lubricating oil collecting box is connected with the lubricating oil outlet 4; b. Connecting the engine connecting end of the connecting air pipe with the exhaust hole of the engine accessory case; c. The engine is subjected to a working test, oil gas generated in the test enters the oil-gas separator 1 through a connecting g