BHARAT HEAVY ELECTRICALS LIMITED

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.

BHEL is one of India’s nine larger Public Sector Undertakings or

PSUs ,known as the NAVRATNAS or the nine jewels .

The wide network of BHEL's 14 manufacturing division, four power

Sector regional centre, over 150 project sites, eight service centre and

18 regional offices.

BHEL has already attained ISO 9000 certification for quality

management, and ISO 14001 certification for environment

management

INTRODUCTION:

The power plant equipment manufactured by BHEL is based on

contemporary technology comparable to the best in the world and is

also internationally competitive.

BHEL is the only company in India with the capability to make

simultaneous for power plants, defense and other applications.

HEAVY ELECTRICAL EQUIPMENT PLANT:

1. BLOCK-1: Electrical Machine Shop

2. BLOCK-2: Heavy Fabrication Shop

3. BLOCK-3: Turbine Manufacturing Shop

4. BLOCK-4: CIM (Coils & Insulation Manuf.)

5. BLOCK-5: Condenser Fabrication & Forge Shop

6. BLOCK-6: Fabrication Shop & Die Shop

7. BLOCK-7: Carpentry & Heat Treatment Shop

8. BLOCK-8: Heat Exchanger Shop

BLOCK-3: TURBINE MANUFACTURING SHOP

HMS (Heavy Machine Shop)

Assembly Section

OSBT

Turbine Section

Blade Section

STEAM TURBINE:

Turbine is an engine that converts energy of fluid into mechanical energy .

Steam turbine depends completely upon the dynamic action of the steam.

Steam turbine is steam driven rotary engine.

WORKING OF STEAM TURBINE:

Impulse Turbine:-• steam is expanded only in nozzles.• Blade passage of constant cross-section

area.

Reaction Turbine:-• Pressure drop in fixed & moving blade.• Blade passage of varying cross-section

area.

ROTOR AND CASING OF STEAM TURBINE:

HP (High Pressure) IP (Intermediate Pressure) LP (Low Pressure)

GAS TURBINE:

Gas turbine have been used for electricity generation.

The gas turbine obtains its power by utilizing the energy of burnt

gases & air which are at high Pressure and Temperature.

For electricity generation, it is known as power turbine.

For propulsion unit in aircraft, it is called aircraft turbine.

BLADES MANUFACTURING:

Operations Performed On Blades: Inspection

Cutting

Milling

Grinding on both the surface

o Machining Of Blades: Horizontal milling machine

Central lathe machine

CNC machine

Vertical boring machine

Mostly 500MW turbine blades are manufactured in this shop.

Basically the design of blades is classified according to the stages of

turbine.

The size of LP Turbine blades is generally greater than of HP

Turbine blades.

OVER SPEED BALANCING TUNNEL:

Features: max. thickness of tunnel : 2500mm tunnel diameter : 9000mm min. vibration limit : 1micron over speed limit : 2500 to 4500 rpm rotor balancing of max. : 600Mw

rating type of pedestal : DH 90/ DH 12

CONCLUSION:-

BHEL is the largest engineering and manufacturing enterprise in

India .

The company manufactures 235 MW nuclear turbine generator sets

and in future it will 500 MW.

BHEL is a major contributor of equipment and systems to

industries.

At the all, till now BHEL is best in supply and manufacturing

products.