Increase the gland steam pressure if air is leaking in. If gland steam is leaking out, replace the seals. If the leak is in the casing, repair or replace the damaged parts.
gland steam cooler is used to cool steam of gland sealing comes from turbine
gland steam temp should be nearer to less than turbine lub. oil flash point.
Gland steam is steam supplied to the labyrinth glands of the low pressure turbine to prevent air entering in the exhaust side, which disturbs the vacuum (± 50 mbar absolute) in the condenser. Gland steam pressure is to supply at about 0,2 bar.
gland condenser is a type of condenser in which steam which is coming from d turbine is used for the heating of demineralised water and then this water is sent to the boiler so boiling of hot water consumes less coal and thus we get benifit of it
my LP turbine differential expansion increase ,when rated gland steam temperature maintain.
Gland steam is steam supplied to the labyrinth glands of the low pressure turbine to prevent air entering in the exhaust side, which disturbs the vacuum (± 50 mbar absolute) in the condenser. Gland steam pressure is to supply at about 0,2 bar.
Gland steam always send from bottom because if we send the gland steam from top then it has a tendency to pass directly to the bottom (condenser) .Due to this reason gland steam is send from bottom so that it occupies total turbine inside vacuum space and seal it.
Gland is used for the prevent leakage of oil from the gland box which is made up of copper or brass and gland box function is to support the glands which are made up of cast iron.This is called oil gland. steam gland is used for prevent the leakage of steam which exhausts air and which helps build up the vaccum in condenser is called steam gland.
Why extractions are taken out from steam turbine.
becouse this steam is use repetdly for the turbine
The basic concept of gland sealing is law of pressure difference.(high pressure fluid prevent the flow of low pressure fluid)
The preventive maintenance of steam turbine mainly entails frequent servicing of the parts. This will ensure a smooth performance of the steam turbine.