S.K. CHAUDHARY EDUCATIONAL TRUST’S

SHANKARA INSTITUTE OF TECHNOLOGY

SP-44, RIICO Industrial Area, Kukas, Jaipur-302028 (Raj.)

A POWER POINT PRESENTATION ONGENERAL AWARENESS OF STEAM TURBINE MANUFACTURING

PRESENTED BY-GOPAL JEEB.TECH 4TH YEARMECHANICAL

BRANCH ROLL NO.- 13ESIME009

PRESENTED TO- MR. GAURAV SIR (H.O.D)

MR. KARAN SIR & MR. MURLIDHAR SIR (CO-

ORDINATOR)

• ABOUT B.H.E.L

• AWARDS & RECOGNITION

• INTRODUCING POWER PLANT

• FUNCTION OF TURBINE

• STEAM TURBINE

• HP, IP, LP & BLADES

• ASSEMBLY OF STEAM TURBINE

• CONTROL VALVE

• CONCLUSION

PRESENTATION PLAN

“Powering progress brightening lives.”

A global engineering enterprise providing solution for a better tomorrow.

Providing sustainable business solution in the fields of energy, industry and infrastructure.

VISION

MISSION

BHARAT HEAVY ELECTRICALS LIMTED

BHEL is India's largest engineering and manufacturing company of its kind.

BHEL was established in 1964 as Heavy Electricals Limited(India) was merged with BHEL in 1974.

It has been granted the prestigious Maharatna (big gem) status in 2013 by Govt. of India for its outstanding performance.

BHEL's global references are spread across over 76 countries across all the six continents of the world.

It is the 7th largest power equipment manufacturer in the world.

BHEL was adjudged the Best Power Equipment Manufacturing Organisation by CBIP.

It has a network of 17 manufacturing units to execute more than 150 projects at sites across India and abroad.

ABOUT B.H.E.L

Appreciation shield (June 2016) for successful commissioning of Salma Dam project in Afghanistan.

BHEL wins India Pride Award 2015-16 for Excellence in Heavy Industries.

In 2014, BHEL won ICAI National Award for Excellence in Cost Management for the ninth consecutive year.

BHEL received two awards in CIIITC Sustainability Awards 2012 from the President of India.

In the year 2011, it was ranked ninth most innovative company in the world by US business magazine Forbes.

The company won the prestigious ‘Golden Peacock Award for Occupational Health & Safety 2011’ for significant achievements in the field of Occupational Health & Safety.

It is also placed at 4th place in Forbes Asia's Fabulous 50 List of 2010.

BHEL wins MoU Excellence Award for the year 2006–07 for the highest growth rate in Market Capitalization.

AWARDS & RECOGNITION

Steam turbine

Rotor Outer Casing

Inner Casing Blade Turbo generator

Rotor

Stator body Exciter Heat exchangers

condenser

Valves

MAIN PARTS MANUFACTURED IN H.E.E.P & C.F.F.P

INTRODUCING STEAM POWER PLANT

• It is a mechanical device that extracts thermal energy from pressurized steam, and convert into rotary motion.

• It has almost completely replaced the reciprocating piston steam engine.

• It is particularly suited to be used to drive an electrical generator.

FUNCTION OF STEAM TURBINE

According to steam pressure drop

IMPULSE TURBINE• Maximum steam velocity( Impulse) is created at the inlet of moving blade Which means high

Kinetic Energy .This energy is utilized for rotation of moving blade.• More pressure drop in guide blade.

REACTION TURBINE• Reaction is created due to action of change of direction of steam through bucket. This thrust or

reaction causes the driving force.• More pressure drop in moving blade.

TYPES OF TURBINE

• Steam at high pressure & temperature is made to pass through a row of fixed blade mounted on stationary body in casing.

• There will be drop in pressure of the steam across the fixed blade resulting to very high steam velocity at the exit of fixed blade.

• The high velocity steam then impinges on another row of rotating blades mounted on the rotor shaft.

• The impingement of high velocity steam generates driving force on these rotating blades which rotate the rotor.

• A set of fixed blades and rotating blades mounted on the rotor is called stage of turbine.

WORKING PRINCIPLE OF STEAM TURBINE

CONSTRUCTIONAL FEATURES 210 MW, 250 MW & 500 MW ST

LP Turbine

TG

Exciter

CAP

LP BV

IV & CVCRH-NRV

ESV & CV

HP Turbine IP Turbine

HPT :250MW/330 MW/500 MW/600 MW/660 MW/800 MW

IPT :250MW/330 MW/500 MW/600 MW/660 MW/800 MW

LPT :250MW/330 MW/500 MW/600 MW/660 MW/800 MW

ARRANGEMENT OF TURBINE

• TURBINE CASING MACHINING SECTION :

Equipped with large size Planer, Drilling, Horizontal Boring, CNC Horizontal and Vertical Boring machine.• ROTOR MACHINING SECTION :

Equipped with large size machining tools like Turning Lathe, CNC Lathes, Horizontal Boring Machine, Special purpose FIR TREE groove Milling Machine. • ROTOR ASSEMBLY SECTION :

Equipped with Indicating Stand, Small Size Grinding, Milling, Drilling m/c, Press and other devices for fitting Rotors and discs.• TURBINE CASING ASSEMBLY SECTION :

Machined casings are assembled and hydraulically tested by Reciprocating Pumps at two times the operating pressure.• TEST STATION :

Equipped with condensers, Ejector, Oil Pumps, Oil containers etc. required for testing.

MANUFACTUING PROCESS – STEAM TURBINE

OVER SPEED VACCUM BALANCING TUNNEL

ALL TURBINES ARE ASSEMBLED BY USING FOLLOWING THREE MAIN STEPS:

• 1.PREPARATION OF MAIN COMPONENTS.

• 2.PREASSEMBLY/FALSE ASSEMBLY.

• 3.FINAL ASSEMBLY USING ROTOR.

BASICS OF ASSEMBLY OF TURBINE

ASSEMBLY OF IP TURBINE

CONT….

• Double Flow

• Double casing design with horizontal split

• Inlet from Lower Half

• Single Exhaust From Upper Half

• Extraction Connections From Lower half

• Admission blade ring with cooling

• Reheat Steam Pressure: 54 ATA

• Reheat Steam Pressure: 593°C

• Steam Outlet Pressure: 6.08 ATA

• Power generated in IPT: 262MW

STEAM EXHAUST

INNER CASING

STEAM INLETEXTRACTION

ROTOR

OUTER CASING

ASSEMBLY OF LP TURBINE

• Double flow

• Double shell casing

• Admission from top half

• Outer casing & condenser rigidly connected

• Inner / outer casing

• Inlet steam pressure : 5.97 ATA

• Outlet steam pressure:0.1047ATA

• Inlet steam temp. : 282.1°C

• Power generated in LPT : 210 MW

STEAM INLET OUTER CASING

ROTOR

INNER CASINGSTEAM EXHAUST

EMERGENCY STOP AND CONTROL VALVE(ESV & CV)

Quick closing stop valve servomotor

Stop Valve

Control valve ServomotorControl valve

INTERCEPTOR AND CONTROL VALVE(IV & CV)Quick closing stop valve servomotor

Stop Valve

Control Valve Servomotor

Control Valve

• Improve safety

• Fewer breakdown

• Better work environment

• Less environmental impact

• Fewer Human errors

• Finding problems earlier

• No searching

• High Morale

• Goodwill

5S Elements & Reasons to Implement

• “An engineering degree is incomplete without practical knowledge and skills. An engineer is expected to be a designer of dynamic world of innovation, for which practical experience matters a lot.”

• I am extremely grateful to BHART HEAVY ELECTRICALS LIMITED,HARIDWAR for giving me the opportunity to carry out my INDUSTRIAL TRAINNING at their facility. Special thanks to Er. MANISH KUMAR CHAUDHARY, Er. OM PRAKASH, Er.JAIKESH KUMAR, Er. VIRENDRA SINGH, Er. RAKESH KUMAR for his continuous support and guidance in being my mentor.

• It gives me a great pleasure to have an opportunity to acknowledge and to express gratitude to those who were associated with my project training in BHEL, HARIDWAR.

CONCLUSION

THANK YOU

ANY QUERIES ?