The scope of fuel oil handling system typically covers the design, engineering, manufacture, supply, assembly and testing at manufacturer’s works, inspection, packing, forwarding, delivery FOR site and handling with storage at site (i.e. taking delivery of materials from carriers, transportation to site), fabrication (as needed), erection, trial run, testing and commissioning including painting protection of fuel oil handling system.
The statutory approval for fuel oil unloading, transfer and storage system from Chief Controller of Explosives shall be obtained by the bidder.
Typical scope of work for 2x500 MW thermal power project includes:
4A.1.2 Mechanical
i) One (1) no. 400 NB (min.) heavy fuel oil unloading manifold, 686 meter length, complete with eighty (80) stand pipes with flexible hoses of 8 M length, with tank heating arrangement.
ii) One (1) no. 300 NB LDO unloading manifold, 686 meter length, completed with eighty (80) stand pipes with flexible hose of 8 M length
iii) One (1) no. 200 NB LDO unloading manifold completed with eight (8) stand pipes with flexible hoses of 8 M length for connecting to road tankers.
iv) Five (5) nos. 150 kilolitre per hour capacity, 4 kg/cm2(g) discharge pressure, direct AC driven horizontal twin screw type steam jacketed heavy fuel oil unloading pump sets.
v) Two (2) nos. 100 kilolitre per hour capacity, 4 kg/cm2(g) discharge pressure, direct AC driven horizontal/vertical twin screw type light diesel oil unloading pump sets for unloading rail tankers.
vi) Two (2) nos. 50 kilolitre per hour capacity, 4 kg/cm2(g) discharge pressure, direct AC driven horizontal twin screw type LDO unloading pump sets for unloading road tankers.
Standard Design Criteria/Guidelines for Balance of Plant of Thermal Power Project 2 x (500MW or above)
Section- 4 (Fuel Oil Handling System)
vii) Simplex type strainers (one for each pump) each having a capacity equal to that of the pump with isolating valves, drain valves, vent valves with goose neck piping and other accessories.
viii) Two (2) nos. 25 kilolitre per hour capacity and 4 kg/cm2(g) horizontal twin screw type pumpset for transferring HFO from storage tank to day tank.
ix) Two (2) nos. 25 kilolitre per hour capacity, 4 kg/cm2(g) horizontal centrifugal pumpsets for transferring LDO from storage tank to day tank.
x) Two (2) nos. 25 kilolitre per hour capacity, 4 kg/cm2(g) horizontal centrifugal pumpsets for transferring LDO from storage tank to day tank for auxiliary boiler.
xi) Two (2) Nos. sump pump set of capacity 30 M3/hr complete with all accessories of drive and mounting in FO Unloading pump house.
xii) Two (2) nos. drain oil pumps of capacity 5 M3/hr and two (2) nos water pumps of capacity 30 M3/hr.
xiii) Two (2) nos. 2000 KL capacity vertical cylindrical heavy fuel oil storage tanks with accessories.
xiv) Two (2) nos. 200 KL capacity vertical cylindrical HFO day tanks with all accessories.
xv) Two (2) nos. 500One (1) no. 1000 KL capacity vertical cylindrical light diesel oil storage tank with accessories.
xvi) Two (2) nos. 100 KL capacity vertical cylindrical LDO day tanks with all accessories located in the day tank farm area.
xvii) One (1) no. 150 KL capacity vertical cylindrical LDO day tank with all accessories located in the day tank farm area for Auxiliary boiler for storage of LDO. The tank shall be located in the vicinity of the auxiliary boiler.
xviii) One (1) nos. pressure reducing and de-superheating station for reducing steam pressure to 4 kg/cm2
xix) One (1) no. oil water separator along with pumps
xx) One (1) no. drain oil tank of 10 m3,and One (1) no. drain oil tank of 2 m3
xxi) One (1) no. condensate tank of suitable capacity for main tank area and one no. for day tank farm area.
xxii) All piping and valves for fuel oil and LDO 4A.1.3 Electrical System/ Equipment
Standard Design Criteria/Guidelines for Balance of Plant of Thermal Power Project 2 x (500MW or above)
Section- 4 (Fuel Oil Handling System)
Two no. feeders shall be provided from 415V Station Switchboard for Fuel oil system to feed LT loads of entire fuel oil facilities for unloading, storage and forwarding. All 415V switchgears shall be located in fuel oil building switchgear room. Typically, following electrical equipment shall be included:
i) 415V switchgears ii) Power and control cables
iii) Cable laying alongwith cabling accessories, cable trays and termination/ jointing kits of cables, fire sealing and installation of equipments
iv) LT motors
v) Complete illumination system for internal and external lighting of associated plant and building
vi) Complete grounding and lightning protections and its interconnection with nearest earth mat
vii) Emergency stop push button for all LT motors
4A.1.4 Instrumentation & Control System
i) Relay based local control panel for operation, control and annunciation of various drives for fuel oil handling facilities in fuel oil pump house. It shall be possible to monitor the fuel oil tank level from the main DCS in the Unit Control Room through serial link.
ii) Instrumentation and control cables including cables laying and termination
iii) Power supply system for C&I system iv) Instrumentation as required for the system.
4A.1.5 Civil Works
i) The civil works to be performed shall cover providing all labour, materials, construction equipment, tools and plant, scaffolding, supplies, transportation, all incidental items necessary for successful completion of the work. The work shall involve earthwork in excavation, extensive de-watering, shoring and strutting, sheet piling, back filling around completed structures and plinth protection, area paving, disposal of surplus excavated materials, piling, concreting including reinforcement and form work, brick work, fabrication and erection of structural / miscellaneous steel works, inserts, architectural items & finishes such as plastering, painting, flooring, doors, windows & ventilators, glass and glazing, rolling shutters etc., permanently colour coated profiled steel sheeting, anchor bolts, R. C. C. trenches
Standard Design Criteria/Guidelines for Balance of Plant of Thermal Power Project 2 x (500MW or above)
Section- 4 (Fuel Oil Handling System)
with covers, laying and testing of water pipes, sanitation, water supply, drainage, damp proofing, water proofing and other ancillary items.
ii) All buildings shall be complete with all electrical, civil, structural, architectural works, cable trenches, fire safety walls, foundation, earth mat, fencing, earthing for transformers. All cables, duct banks, trenches, cable trestles shall be complete with associated civil/ structural work and necessary civil foundations. Buildings to be provided shall include the following :
a) Fuel Oil Pump House
Fuel Oil Tanks and dykes around it Paving required in the FO area
v) Scope shall also include supply and laying earthing mat all around the periphery of buildings, structures, and outdoor equipments, as per the approved drawings.
vii) Access roads to all buildings/facilities of Fuel oil handling facilities including construction and maintenance of temporary access roads for approach to the building/facilities for construction/erection activities.
Standard Design Criteria/Guidelines for Balance of Plant for Thermal Power Project 2 X (500W or above)
Section- 5 (Water Treatment Plant)
STANDARD DESIGN CRITERIA/GUIDELINES FOR BALANCE OF PLANT FOR