Bhel steam turbine manufacturing

1. Presentation
on
General Awareness in steam
Turbine Manufacturing
Submitted by:-
Santosh kumar
Roll. No. 110106244

2. Contents
• Introduction
• Products
• Steam turbine
• HP,IP,LP & Blades
• Control valve
• Assembly of steam turbine
• Cutting method
• Conclusion

3. Introduction
BHEL is the largest engineering and manufacturing enterprise in
India in the energy related infrastructure sector today. BHEL was
established more than 40 years ago when its first plant was setup in
Bhopal ushering in the indigenous Heavy Electrical Equipment
Industry in India a dream which has been more than realized with a
well recognized track record of performance it has been earning
profits continuously since1971-72.BHEL caters to core sectors of
the Indian Economy viz., Power Generation's & Transmission,
Industry, Transportation, Telecommunication, Renewable Energy
Defence etc. The wide network of BHEL's 14 manufacturing
division, four power Heavy Electricals Limited (B.H.E.L.) is the
largest engineering and manufacturing enterprise in India.

4. Products
• Thermal power Plants
• Nuclear power Plants
• Gas based power Plants
• Hydro power Plants
• Boilers (steam generator)
• Boiler Auxiliaries
• Hydro generator
• Steam turbine
• Gas turbine
• Hydro turbine Solar Photo voltaics.

5. STEAM TURBINE
A steam turbine works on the principle
of conversion of High pressure & temperature
steam into high Kinetic energy , thereby giving
torque to a moving rotor.

6. Types of steam turbine
1.High pressure turbine (H.P. Turbine)
2.Intermediate pressure turbine (I.P. Turbine)
3.Low pressure turbine (L.P. Turbine)

7. High pressure turbine (H.P. Turbine)
High pressure and temperature fluid at the
inlet of the turbine exit as lower pressure and
temperature fluid. The difference is energy
converted by the turbine to mechanical
rotational energy, less any aerodynamic and
mechanical in efficiencies incurred in the
process. Since the fluid is at a lower pressure
at the exit of the turbine than at the inlet, it is
common to say the fluid has been “expanded”
across the turbine.

8. HIGH PRESSURE TURBINE

9. H.P turbine blades
• Aturbine blade is the individual component which
makes up the turbine section of a gas turbine. The
blades are responsible for extracting energy from
the high temperature, high pressure gas produced
by the combustor

10. ADVANTAGES OF H.P TURBINE BLADE
• Ability to utilize high pressure and high
temperature steam.
• High efficiency.
• High rotational speed.
• High capacity/weight ratio.
• Smooth, nearly vibration-free operation.
• No internal lubrication.
• Oil free exhausts steam.

11. Low Pressure Turbine
• LP turbine is designed to be a dual flow
turbine. Steam enters the center of the
turbine from the crossover pipe and flows
across the reaction blading in two opposite
directions. This configuration reduces axial
thrust on the turbine and allows for a smaller
turbine installation. On ships where space is
not a concern, a single flow turbine is used.

12. Low Pressure Turbine

13. Low Pressure Turbine blade
Titanium alloys offer high strength to
intermediate temperatures at a density almost
half that of steel and nickel-based superalloys.
As a result, they have been adopted widely in
the fan and compressor stages of the gas
turbine for both disc and blade applications..
• LP blade is larger than HP & IP.

14. INTERMEDIATE PRESSURE TURBINE
• Intermediate pressure turbine having more
pressure then L.P turbine and lass than the high
pressure turbine(H.P) . Its blade is larger than
high pressure turbine.

15. Blade of intermediate pressure turbine
• The size of blades of I.P steam turbine is larger
than H.P steam turbine , but smaller than L.P
steam turbine.

16. Control Valves
• Steam inlet valves perform one of two
functions, protection or control.
• Steam inlet control valves regulate the flow
and/or the pressure of steam through the
turbine. Their position, from closed to fully
open, is determined by the turbine electronic
controlled.

17. Control Valve

18. Cutting method
• Plasma cutting:- Inert gas is blown at high speed
out of a nozzle; at the same time an electrical arc
is formed through that gas from the nozzle to the
surface being cut, turning some of that gas
to plasma.
• CNC cutting machine:-Based on CNC programs.

19. • Flame cutting:-A common propane/air flame
burns at about 2,000 °C (3,630 °F), a
propane/oxygen flame burns at about
2,500 °C (4,530 °F), and an acetylene/oxygen
flame burns at about 3,500 °C (6,330 °F).

20. Conclusion
• Summer Training gives the idea of ‘general
awareness in steam turbine manufacturing’, &
its process. Its provides practical idea to
manufacturing several components of turbine.

21. THANK you