@@rahulsirclasses1987 Sir one request pls make video on boiler side also. Like Air flow control loop. O2 trimming. Hot flue gas control loop. Fuel master CMC etc. it will be very helpful.
Cold start up: In this turbine is in atmospheric temperatures, hence gland steam is charged after vacuum pulling at vacuum say -0.2 to -0.5 kg/cm2. If gland sealing is done before vacuum pulling, there may be chances of developing thermal stresses. Hot start up: Gland sealing is charged even before vacuum pulling. Charging the gland seal steam after vacuum pulling may cause cold air shock in the glands which may lead to rotor distortion
![GLAND SEALING SYSTEM || SELF SEALING IN TURBINE || INTERSTAGE SEALING || [हिंदी]](http://i.ytimg.com/vi/rsmgSAAjoPM/mqdefault.jpg)
👍👍👍👍
Thanks
Thankyou sir. Didn't knew anything before video. But explanation was so, i understood everything you taught.
Thanks
@@rahulsirclasses1987 Sir one request pls make video on boiler side also.
Like
Air flow control loop. O2 trimming.
Hot flue gas control loop.
Fuel master
CMC etc. it will be very helpful.
Ok ,I will make video on this topic.
Please upload video on seal oil system 500 MW and 200 MW both,
H2 side seal oil pump , Air side seal oil pump etc
Ok
Dear sir please make video on boiler emergency conditions and shutdown time activity for desk operation
Ok
Sir valve k bare . Bta dijiye Jo plant me use hota hai
Ok.please give me time I will make video on this topic.This is important topic.
@@rahulsirclasses1987 ok sir. Valve bahut Sara hai kon sa kaha lga hai smjh m hi nhi ata
Sir vacuum pulling karte time gsc fan kab start karna hai.. Either after starting of vacuum pump or after charging of gland sealing steam
GSE fan should be started before charging Gland steam
Why there is a connection from CRH along with Aux PRDS for gland sealing
There is another provision of steam source for gland seal steam charging.In some case where there is one unit only, no interconnection of PRDS .
@@rahulsirclasses1987 I think seal steam charging has done before firing in the boiler, then what is the purpose of taking steam from CRH line
Sir lightup process ka video banaya, kab kon sa drive start karna hai or parameters kya rahega or kis parameters ko dekh kar driver start karenge
Specially for 250 MW BHEL Unit
Ok
Sir .. steam sealing and gland sealing m difference kiya hai
Both are same
Maw 10 and MAW 50 oil operator vlv having oil motor
Air operated
In my plant we have MIV😢
19:35 sir Jo steam hai wo Hp, IP, OR LP thino se leak kartha hai ya sirf Hp , Ip se leak kartha hai.
Leakage from HPT &IPT ONLY
leakage steam supply to the gland of LPT as it is connected to vaccum , exhaust pr is less than atmospheric
Sir hp dosing aur LP dosing kab aur karte please bataiye?
Will upload video on this topic
@@rahulsirclasses1987 yes sir
Sir in my plant self sealing start at 100MW ( 250 MW UNIT) ITS MORE THAN 35%. WHY
Due to less ms pressure and depends on design parameters
Why gland sealing is charged after taking hoggard after attaining slight vaccum.
Cold start up:
In this turbine is in atmospheric temperatures, hence gland steam is charged after vacuum pulling at vacuum say -0.2 to -0.5 kg/cm2. If gland sealing is done before vacuum pulling, there may be chances of developing thermal stresses.
Hot start up:
Gland sealing is charged even before vacuum pulling. Charging the gland seal steam after vacuum pulling may cause cold air shock in the glands which may lead to rotor distortion
Really clarified my doubt.Thanks Sir🙏
@@rahulsirclasses1987 Sir is this same for warm Starup also
@@shailendrasinghpatel1427 yes
To improve the vacuum ,prevent ingress of air into turbine
GSC kya hota hai sir
GSC means gland steam condenser which is used in condensate water cycle to heat the condensate water by gland steam of turbine
Sir blowdown ka video hai kya
No,will make video