Lubricating-oil composition of speed reducing machine in gas turbine for ship

Abstract

The invention discloses a lubricating-oil composition of a speed reducing machine in a gas turbine for ship. The lubricating-oil composition comprises the following components in percent by mass: 2-4% of antioxidant, 5-6% of antiwear agent, 0.1-0.4% of antirusting agent, 0.06-0.08% of metal passivating agent, 0.05-0.3% of demulsifying agent, 0.005-0.01% of anti-foaming agent, 1-2% of oiliness agent and the balance of base oil. The lubricating-oil composition has the obvious advantages that the comprehensive performance is good, and all performance indexes meet the use requirements; not only are the antioxygen, anticorrosion and antiwear performances good, but also the antirusting, anti-salt-fog and antifoaming performances are quite excellent; the lubricating-oil composition also meet the use requirements of the gas turbine for ship in the aspects of acid control capability, clean dispersity and rubber adaptability; and the base oil is compounded and synthesized by selecting diester and polyol ester which have excellent performance, so that the base oil assuredly has good heat stability, good viscosity-temperature characteristic, excellent low-temperature mobility, low volatility and good lubricity simultaneously.

Description

technical field [0001] The invention relates to a lubricating oil composition for a reducer in a marine gas turbine. Background technique [0002] With the continuous development of gas turbine technology in my country, especially after the introduction of UGT25000 gas turbine technology from Ukraine and the recent introduction of GE's LM2500+G4 series technology for the construction of power stations, the use of gas turbines on ships has become an inevitable development of ship power. However, the development of lubricating oil for reducers in marine gas turbines is still a weak point in China, and there is no lubricating oil standard for large gas turbines in ships. Therefore, it is of great significance to develop lubricating oil for marine gas turbine reducer. [0003] At present, the lubricating oil system of marine gas turbines in my country is mainly divided into two parts, front and rear, which are designed independently. This is because the front part of the gas gen...

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Problems solved by technology

[0002] With the continuous development of gas turbine technology in my country, especially after the introduction of UGT25000 gas turbine technology from Ukraine and the recent introduction of GE's LM2500+G4 series technology for the construction of power stations, the use of gas turbines on ships has become an inevitable development of ship power. There is a growing demand for localized supporting facilities; however, the development of lubricating oil for reducers in marine gas turbines is still a weak point in China, and there is no lubricating oil standard for large gas turbines for ships.

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