2a - Life Assesment of Boilers

8/13/2019 2a - Life Assesment of Boilers

1/9

BHEL Focus on R&M

Extended life.

Restore lost capacity and /or enhance rated capacity.

Im roved availabilit & reliabilit .

Improved heat rate & cycle efficiency.

State of art systems for better O & M practices.

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2/9

Advantages with BHEL

Single source Total solutions.

Wide experience in conducting Destructive and NDT

tests and its interpretations.

Experience of conducting >250 RLA studies

e eve ope a s or es ng o coa , as ,materials etc.


3/9

Advantages with BHEL

Unparalleled experience with Indian coal.

based on wide experience.

,

knowledge of O&M practices and problems.

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Smart Wall Blower System.

Gravimetric feeders with Micro processor controls

Steam Tube Leakage Detection (STLD) system

By-pass Over Fire Air System NOx Control


4/9

Approach towards R &M

Conductance of RLA/PET/CA studies to assessplants condition and identify areas of improvements.

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Execution.


5/9

When assessment is required?

Assessment becomes necessary in either of thefollowing conditions:

1. After 100000 hrs of o eration /Statutor

2. Decreasing trend in availability & PLF

. ncreas ng tren n cost

4. Before R&M


6/9

overseas projects boilers of various capacities and types

, ,

Life assessment and Extension

Rehabilitation of boiler

Up-gradation of C&I

Overhauling and servicing


7/9

R&M Executed

Korba East Thermal Power Station - CSEB (2x120 MW)

Unit 5: ABL boiler & Unit 6: BHEL Boiler

Assessment.

Units running consistently at PLF > 80%.

Neyveli TPS Russian design Boilers 4 x 50 MW:

Scope of work based on RLA and CA

n oa e o es gn capac y o r

Exit gas temp. reduced from 190C to 140 C


8/9

R&M Executed

Kothagudem Thermal Power Station APGENCO

Scope of work arrived at after RLA studies and

Condition Assessment and specified by APGENCO.

Uprating to 120 MW implemented.

.

Many other contracts like Ennore 110 MW,,

BHEL.


9/9

R&M Pro rammes under Execution b BHEL

Turnkey execution of R&M works (involving Boiler & Aux,

TG & Aux, C&I, Balance of Plant and Electrical).

1. GSECL Ukai TPS (2x120 MW)

2. HPGCL Panipat TPS (1x110 MW)

3. UPRVUNL Obra TPS (5x200 MW)

4. PSEB Bhatinda TPS units 3&4 (2x110 MW)Replacement of tangent tube furnace to membrane wall furnace

Change of mil ling system - from indirect firing to direct firing and

from tube mills to bowl mills.

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Documents

2a - Life Assesment of Boilers