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Gas turbine lubricating oil system metal shavings online monitoring system

A monitoring system and metal shavings technology, applied in radio wave measurement systems, measuring devices, geophysical measurements, etc., can solve the problems of hidden troubles in the lubricating oil system and the inability to realize real-time online monitoring of the size and quantity of metal shavings, and achieve safety The effects of reliable use, avoidance of representation and secondary pollution

Inactive Publication Date: 2018-05-08
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology

Both the dust alarm and the dust annunciator work on the cumulative working principle, which cannot realize real-time online monitoring of the size and quantity of metal dust, which brings hidden dangers to the failure of the lubricating oil system, and there is an urgent need for a device or equipment It can monitor the size and quantity of metal shavings online in real time, and realize timely forecast and fault alarm for the occurrence trend of swarf in key components of the lubricating oil system

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  • Gas turbine lubricating oil system metal shavings online monitoring system

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Embodiment Construction

[0016] This invention designs an on-line monitoring system for metal scraps in the lubricating oil system of a gas turbine. The design idea is to install the coil sensor on the total oil return pipeline from the lubricating oil booster pump to the lubricating oil filter of the gas turbine, and there are corresponding sealing measures. Change the original oil circuit.

[0017] The working principle of the coil sensor 1 in the online monitoring system of metal scraps in the lubricating oil system: when the engine is working, due to the interaction of mechanical friction pairs, many metal particles will be produced. Under the action of the lubrication system, these particles will be suspended in the lubricating oil. According to the concentration of metal particles in lubricating oil, the severity of wear can be judged from the size distribution of wear particles, the concentration of particles and their changing trends. By analyzing the debris in the oil, it is possible to monit...

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Abstract

The invention relates to a gas turbine lubricating oil system metal shavings online monitoring system which comprises a coil sensor and a data processing device. Two ends of the coil sensor are connected to a main oil return pipe of a lubricating oil booster pump to a lubricating oil filter through adapter flanges. The data processing device processes a voltage signal outputted by the coil sensorto obtain size and quantity of metal shavings in the main oil return pipe. According to the system, the problem of the real-time monitoring of the size and quantity of lubricating oil system metal shavings is achieved, and the safe and reliable use of a gas turbine is ensured from the design structure. By using the system of the invention, the completion of one time of online monitoring just takesa few minutes to several tens of minutes, and collected data can be recorded in real time and automatically stored in a database of an upper computer. The online monitoring device of the invention can directly analyze oil in the oil return pipe, and the problems of unrepresentative sampling and secondary pollution are avoided.

Description

technical field [0001] The invention relates to the technical field of gas turbine mechanical system design, in particular to an on-line monitoring system for metal chips in a gas turbine lubricating oil system. Background technique [0002] The main function of the gas turbine lubricating oil system is to provide lubricating oil for lubrication and cooling to the main bearings of the gas turbine, contact seals, central transmission gears, gears and bearings of the accessory casing. The lubricating oil system of a gas turbine is composed of an oil supply system, an oil return system, and a ventilation system. The function of the oil supply system is to provide lubricating oil with stable working pressure, relatively low temperature and certain cleanliness to the gas turbine. The function of the oil return system is to effectively pump the lubricating oil supplied everywhere to the lubricating oil tank, and separate the oil-gas mixture in the returned oil to realize the recy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/11G01N15/00G01N15/02
CPCG01V3/10G01N15/00G01N15/02
Inventor 梁存良庞增太王凯王斌王志哲
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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