文档介绍：Oil Change Criteria
1. GEARING SYSTEMS
Fluid Function :
Lubricate moving parts
Provide cooling
Prevent corrosion
Performance Factors :
Viscosity
Rust inhibition
EP properties
Anti-wear
Thermal & oxidation stability
Anti foam
Test Frequency :
Every 6 months
BP Product Range include:
Energol GR-XP
Energol GR-XF
Enersyn SG
Enersyn SG-XP
Enersyn HTX
Enersyn EPX
Hypogear EP
Gear Oil EP
Gear Oil
Application :
Generally gearboxes consist of white metals or rolling element bearings, and steel on steel gears, or steel on bronze gears of various configurations, fitted with an enclosure. Speeds & loads vary considerably, dependent upon application and gear type. Lubrication may be integral or fed from the oil system of the driving machine.
Often gearbox lubricant is rationalised with the driving system lubricant, (such as engine oil).
Test
Oil Condition
Default Limits
Kinematic Viscosity (cSt)
Satisfactory
<+ 15% of nominal viscosity
Borderline
+ 15% -20% of nominal viscosity
Exceeds Limit
>+ 20% of nominal viscosity
Water
(% wt.)
Satisfactory
% - %
Borderline
% - %
Exceeds Limit
> %
Acid Number (mgKOH/g)
Satisfactory
<+ mgKOH/g of nominal acid number
Borderline
+ - mgKOH/g of nominal acid number
Exceeds Limit
>+ mgKOH/g of nominal acid number
n-Heptane Insolubles (% wt.)
Satisfactory
< %
Borderline
%-%
Exceeds Limit
> %
Gear Lubricants Analysis
2. STEAM & GAS TURBINES AND GENERAL CIRCULATION SYSTEMS
Fluid Function :
Lubricate moving parts
Lubricate reduction gearing
Provide cooling
Rust & oxidation corrosion
Performance Factors :
Viscosity
Oxidation resistance
Water shedding (demulse)
Test Frequency :
Every 6 months
BP Product Range include :
Energol THB
Energol TH-HT
Turbinol
Turbinol EP
Energol CS
Energol CSM
Energol HP
Application :
Steam turbines are used for main propulsion, electrical power generation and for other direct drive power requirements