NTPC – SAIL POWER COMPANY LTD.
CORPORATE CONTRACTS & MATERIALS, NEW DELHI
Salient Tech.
Features
Renovation & Retrofitting of ESP at upgradation at Bhilai PP-II(2X30MW+14MW)BID
DOCUMENT NO: CC/C&M/C-497
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Salient Technical Features for Renovation & Retrofitting of ESP at Bhilai
Salient Technical Features of the works covered in IFB no. CC/C&M/C-497 dated 19/12/2017
are mentioned below. These Salient Technical Features are mentioned only to facilitate
prospective bidders to prime-facie understand the requirements under the tender and shall not
in any way limit or alter the Scope of Work and Technical Features / Specification of Works
covered in the Bidding Documents. Detailed provisions in regard of Scope of Work and
Technical Features / Specification of Works, contained in the bidding document shall be final
and binding.
Introduction
NSPCL, BHILAI PP-II Captive power plant comprising of 3 units (2X30 MW + 1X14 MW BPTG)
were commissioned during the period 1982-85. The steaming capacity of each boiler along
with its auxiliaries is 150 TPH which correspond to 30 MW load. NSPCL, BHILAI PP –II was
supplied with two pass ESPs from BHEL. Subsequently, additional one pass was installed
through M/s Andrew Yule. Each BHEL pass consists of 3 fields and that of Andrew Yule pass 4
fields.
The steam generators are balanced draft, pulverized coal fired type. CO gas is used in
conjunction with pulverized coal firing during start up and at low loads for warm up and flame
stabilization. Each steam generator is provided with three dedicated Electrostatic Precipitator
set as stated above comprising of separate independently operated gas streams housed in
independent casings
Location and Approach
Project Location
(i) Place: Bhilai
(ii) District: Durg
(iii) State: Chattisgarh
Latitude and Longitude of project location 21 Deg 11’ (North)
81 Deg 26’ (East)
Nearest Railway Station Bhilai
Distance of project location from the Railway station 4 kM (Approx.)
Nearest Major Town Bhilai
Distance of the town from the Project site 10 KM
Distance of Raipur Airport from the Project Site 35 KM (Approx.)
Distance from Nearest Highway NH – 6 Point to the site 5 KM
BRIEF SCOPE OF WORK
The broad scope of work consists of the following:
(a) Modification of existing ESP to achieve the targeted emission level 50 Mg/Nm3 from the
present operating emission level to meet pollution control norms through retrofitting /
renovation with additional collection area:
NTPC – SAIL POWER COMPANY LTD.
CORPORATE CONTRACTS & MATERIALS, NEW DELHI
Salient Tech.
Features
Renovation & Retrofitting of ESP at upgradation at Bhilai PP-II(2X30MW+14MW)BID
DOCUMENT NO: CC/C&M/C-497
Page2of2
(Option – I: Renovation & Retrofitting of existing ESPs with rigid discharge frame
work type design) Renovate the existing BHEL make ESP passes to enhance the
collecting area through redesign / re-engineering work like increasing its height, increasing
the collecting electrode spacing, adding additional field in series (if required) in the
available space and Install new additional ESP similar to the renovated ESP to achieve the
targeted emission level.
OR
(Option – II: Renovation & Retrofitting of existing ESPs in combination of rigid
discharge frame work type ESP with Moving electrode plate type design ESP
(MEEP)) Renovate the existing BHEL make ESP passes to enhance the collecting area
through redesign / re-engineering work like increasing its height, increasing the collecting
electrode spacing, adding additional field in series (if required) in the available space and
converting last one / two fix field of existing ESP to MEEP field and Install new additional
ESP similar to the renovated ESP consisting of fix field and MEEP field to achieve the
targeted emission level.
(b) In case of U#1 and U#3, existing Andrew Yule ESP pass shall be completely dismantled
and new ESP pass shall be erected in place of it. In the case of unit #2, new ESP pass
shall be erected in the space available between U#1 and U#2 and existing Andrew Yule
pass shall be completely dismantled.
(c) All Civil works including foundation for new fields of existing ESP & new parallel ESP,
Construction of new ESP SWGR room.
(d) inSupply, stallation and commissioning of electrical system including two nos. (02) nos.
6.6kV/415V Dry type Transformers, associated power, control & instrumentation cables,
switch gear and protection
(e) Associated instrumentation work.
(f) Replacement of internals of existing ESP and E&C of modified ESP and new ESP.
(g) CFD and Physical modeling of New as well as modified ESP.
(h) Supply of item/component as required.
(i) Supply of Mandatory spares as detailed in technical specification.
(j) Services like dismantling / repair / overhaul/retrofitting of various other components /
systems / sub-systems as may be required, to ensure sustained, safe commercial operation,
and to meet stipulated design / guarantee requirements and to meet the overall objectives of
retrofitting of ESP.
(k) The scope of work also includes erection of the total equipment, commissioning, gas
distribution testing, trail operation, Performance guarantee testing etc.
