What is the usual pressure of gland sealing steam?

With load building inside the turbine, HPT and IPT leakage will go to the gland steam supply header to increase the pressure, which will compel the supply valve to close. Normally the auxiliary steam header is maintained at a fixed pressure and temperature (at 10 or 16 kg/cm2 and ∼ 210°C).

What is the purpose of gland condenser in steam turbine?

The function of the gland steam condenser is to maintain a sub-atmospheric pressure at the outermost leak-off belt of the glands and thereby prevent the leakage of steam from the glands into the turbine hall, where it would condense on the walls and plant. The condenser is vented to the atmosphere via a blower.

What is a turbine gland?

gland steam providing a seal between turbine shaft and turbine casing . so gland steam protect the leakage of steam outside of the turbine and also and suck the ambient air inside . In a turbine, rotor rotates inside the casing. the portion from where the rotor exists the turbine casing is called a gland .

What is turbine gland sealing system (TGSS)?

The turbine gland sealing system (TGSS) prev ents the escape of steam from the turbine shaft and casing penetrations and the glands of main steam stop and control valves. This system also prevents air leakage into the low pressure turbine glands.

What is the purpose of gland sealing?

So, gland sealing system is used to prevent leakage.Low pressure steam is supplied to final seats of labyrinths. Arrangement is done vent the excess steam. To drain out the condensate producing due to cooling of the gland steam drain are also provided. DIFFERENT TYPE OF STEAM SEALING IN TURBINE

What is the function of steam seal in steam turbine?

The steam seal inside the steam turbine includes partitions and the surrounding strap seal, high pressure cylinder and low-pressure cylinder end steam seal. These steam seal effectively prevents steam leakage in each chamber, steam leak out and air leak into.

What is the difference between high pressure shaft seal and low?

High-pressure shaft seal is used to prevent steam leakage out of the cylinder while low pressure shaft seal to prevent air leakage into the cylinder. Steam seal for the gap of the clapboard inner hole and the spindle.