What might happen if a steam turbine is not properly lubricated?

What might happen if a steam turbine is not properly lubricated?

Lubrication plays a vital role in supporting optimal steam turbine performance. Selecting an inadequate lubricant can have expensive consequences, including unexpected shutdowns and high labor costs associated with frequent cleaning and filtering of lubrication systems and inspections of journal bearings.

How does an oil pump work?

The oil pump in an internal combustion engine circulates engine oil under pressure to the rotating bearings, the sliding pistons and the camshaft of the engine. This lubricates the bearings, allows the use of higher-capacity fluid bearings and also assists in cooling the engine.

What is the purpose of the auxiliary oil pump?

Auxiliary Oil Pump It operates during startup and shutdown when the turbine shaft is not rotating fast enough for the main oil pump to deliver the required pressure and flow. 2. It acts as a standby lube oil pump in the event of a main oil pump failure.

What type of pump is an oil pump?

Centrifugal pumps are the most common types of pumps used in the oil and gas industry. Centrifugal pumps use centrifugal force through the rotation of the pump impeller to draw fluid into the intake of the pump and force it through the discharge section via centrifugal force.

How are steam turbines lubricated?

Most turbines have hydraulic control systems that use lubricating oil as the working fluid and lubricating system pressure as the actuating force. Steam turbines cannot operate without lubrication. Therefore, turbine lubricating oil systems must be designed, operated and maintained for extreme reliability.

What is turbine oil?

any oil used to lubricate the bearings and auxiliary machinery in steam and hydraulic turbines, in turbopumps, and in air, gas, and refrigeration turbocompressors. Turbine oils are also used as lubricants and working fluids in various types of closed-cycle industrial machinery.

What happens when an oil pump fails?

A bad oil pump will lose the ability to properly pump oil through your system. This will result in low oil pressure that could lead to further vehicle damage. Increased engine operating temperature. When the flow of engine oil is reduced, the parts don’t remain properly lubricated and thus heat up.

Why would an oil pump fail?

Low Oil. If the oil level is too low, the oil pump will have to deal with extra friction due to lack of lubrication. This will cause mechanical problems and warping of various parts in the pump, which will eventually cause the pump to fail.

What is EOP turbine?

The lube oil system of turbine consists of four pumps auxilary oil pump known as aop, emergency oil pump known as eop, jacking oil pump known as jop and main oil pump known as mop. Apart from that barring arrangement is giving between lp and Ip turbine for uniform cooling down of turbine and avoid shaft sagging.

What is turbine lube oil system?

The oil system is an integral element of the turbine unit, which largely determines its reliability and trouble-free operation. The main purpose of the turbine lubricating oil system is to provide fluid friction in the bearings of turbines, generators, feed pumps, and gearboxes.

What causes oil pump failure?

What happens to the oil pump when the turbine speeds up?

When the turbine speeds up to rated speed (the main pump exit oil pressure is higher than electric pump exit oil pressure), this oil pump is stopped using, using main oil pump instead to provide lubrication oil to conditioning and protection system of the entire unit.

What is the function of the oil supply system in a turbine?

Turbine oil supply system function: 1.Provide pressure oil to conditioning system and protection devices. 2.Provide lubrication oil to all bearing shafts of the unit and cooling meanwhile. 3.Provide oil to turning gearing device.

How centrifugal main oil pump works?

Centrifugal-type main oil pump is directly driven by steam turbine main shaft; in normal operation, exit oil pressure of oil pump is ~ 0.85MPa, this pressure oil, besides being provided to conditioning and protection system mostly is to be supplied to oil-injector.

What happens to the oil pump when the power is disabled?

As for the DC oil pump, when the plant power is disabled, or fault at the auxiliary oil pump, shall be put in to ensure the successful shutdown.