NUCLEAR POWER CORPORATION OF INDIA LTD TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 1 OF 4 REV NO : 0 DATA SHEET A

Transcription

1 TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 1 OF 4 DATA SHEET A ANNEXURE - A Sr. Item Description Sr. Item Description A. GENERAL DATA B. PUMP DUTY PARAMETERS 1. System Name 1. Rated capacity, m 3 /h Total Developed Head 2. Tag Nos. 2. at rated capacity (excluding pump internal losses), mwc 3. Project Name 3. Range of Operation 4. Type of Suction 4. Duty 5. Pump shut-off head (Maximum), mwc Maximum 5. Location 6. Synchronous speed at 50 Hz, rpm 6. No of Pumps H-Q characteristics Required 7. requirement (For two units) 7. Max. Ambient Temp. C 8. Dewatering Capability Seismic Permissible tolerance 8. Qualification 9. in rated capacity at requirement rated head 9. Whether Pumps Acceptable Tolerance Working in 10. in head Parallel 10. Sump Bottom LIQUID DATA Enclosed as Level Elevation, C. Annexure m HWL 1. Pumping Liquid Sump Water 11. Maximum Liquid Level, m 2. LWL Temp. 12. Applicable Specification 3. Sp. Gr. a. Pump 4. TDS, ppm b. Motor 5. ph 13. Sump 6. Dimensions Maximum Particle/ Debris Size, mm

2 TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 2 OF 4 Sr. Item Description Sr. Item Description D. PUMPS CONSTRUCTION E. ACCESSORIES AND SERVICES FEATURES REQD. (CONTD.) 1. Type Of Pump Cooling/ Sealing/ 2. Type Of Casing/ Lubrication system with Bowl all accessories Type of Impeller completely piped, 4. Number Of Stages valved & with instruments. 5. Type Of Mounting 5. Discharge Pipe Required Earthing Cleats Submergence 7. Discharge Flange 7. Suction Strainer Drilling Standard 8. Type of Pump- 8. Discharge Pressure Motor Assembly Gauge 9. Impeller Diameter 9. Clamps, Lifting Lugs & Offered Eye Bolts Max. Impeller 10. Diameter that can Pump-Motor coupling/ 10. be accommodated guard in casing 11. Shaft Sealing Arrangement 12. Bearing Lubrication Type 11. Level Switch ON-OFF Pump Foundation 13. base plant MATERIAL OF CONSTRUCTION dimension F. (Material test certificates shall be Discharge Nozzle submitted by pump vendor) orientation Discharge Nozzle, 1. Bowl/Casing mm 2. Suction Bell 3. Impeller E. ACCESSORIES AND SERVICES REQD. 4. Bowl Wearing Ring 5. Impeller Shaft 1. Base Plate & Sole 6. Shaft Sleeves Plate 2. Foundation Bolts, Nuts, Sleeves, etc. 7. Companion 3. Flanges with Nuts, 8. Bolts & Gaskets Seating Plate & Motor Stool Strainer (5 mm opening size)

3 TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 3 OF 4 Sr. Item Description F. MATERIAL OF CONSTRUCTION (Contd.) 9. Base Plate 10. Drive Shaft 11. Shaft Bearing 12. Diffuser 13. Mechanical Seal Nuts 14. Fasteners Bolts G. MOTOR DATA- Refer NPCIL Motor Datasheet PC-E Drive motor type 2. Designed for Reverse Rotation H. INSPECTION & TESTING - GENERAL Stage Inspection 1. Yes by Purchaser Material Testing & 2. Yes Identification Dismantling 3. Yes Inspection Sr. Item Description 2 D.P Test a b c Parts to be Checked (100%) Testing Standard Acceptance Standard 3. Ultrasonic Examination a. Parts to be tested (100%) b. Testing Standard c. Acceptance Criteria 4. M.P. Test a. Parts to be tested b. Testing Standard c. Acceptance Standard 5 I.G.C. Test Parts to be tested (100%) I. INSPECTION & TESTING Non Destructive Examination 1. Radiography a. Parts to be tested b. Testing Standard c. Acceptance Standard

4 TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 4 OF 4 Sr. Item Description Sr. Item Description INSPECTION & TESTING J. Performance & Other Tests Required (CHP) Hydrostatic test.- 1. Parts to be tested (100%) Hydrostatic test 2. pressure, kg/cm 2 (g) 3. Impeller Balancing (100%) 4. Shop Performance Tests (100%) 5. Test / Acceptance Standard 6. Strip down Test NOTE: 1. Driver Rating to be selected based on maximum kw required in range upto 120% of rated capacity under 51.5 Hz power supply frequency 2. CHP Customer Hold Point

5 TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 1 OF General a Manufacturer s Name b Model No & Type c Tag No d No of pumps offered e of stages DATA SHEET B (To be filled by Vendor along with the tender) ANNEXURE - B 2.0 Guaranted Performance Data a Design capacity (m 3 /hr) b Total dynamic head at design capacity in mwc c Shut off head in mwc d Pump efficiency e Motor efficiency f Combined pump & motor efficiency g KW requirement at 50 Hz and 51.5 Hz power supply frequency as following format h i j i At rated capacity (specify also tolerance) ii At pump shut off iii At 120% capacity iv Maximum KW requirement v Guaranteed Power Consumption at Motor input terminals at pump duty point, KW Range of operation in terms of flow Range and TDH range Speed in RPM i Synchronous speed of motor ii Specific speed of impellers iii Full load speed for operating condition iv First critical speed Solid handling capacity 50 Hz 51.5 hz 3.0 Construction Features 3.1 Manufacturer a Pump b Motor c Coupling & Type 3.2 Motor details and type Details to be filled in Motor Data Sheet (Data Sheet B of PC-E-501) 3.3 Cable Gland Sealing type 3.4 Number of mechanical seals provided 3.5 Impeller a Type of Impeller

6 TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 2 OF 4 b Diameter of impeller, mm c Direction of rotation viewed from driver end d Method of fastening impellers to shaft e Whether static and dynamic balancing of Impeller will be Yes / No carried out f Suction Strainer 3.6 Shaft and bearings a Shaft diameter, mm b Type of bearing and make, nos i Radial Thrust ii Axial Thrust 3.7 Nozzle Connection a Suction size, mm b Discharge i Size, mm ii Rating iii Facing & Drilling Standard iv Orientation (Top/Side) v Discharge Pipe Size 4.0 Instruments & Accessories 4.1 Method of vertical adjustment of rotor (Details to be enclosed with proposal) 5.0 Weights a Complete pump and drive assembly including cables (Kg) b Motor, Kg (with oil filled and empty) c Total shipping weight (kg) d Moment of inertia with entrained liquid (kg/m 2 ) 6.0 Dimensions a Overall length from top of discharge flange to bottom of pump, mm 7.0 Materials Of Construction a Impeller b Impeller wearing ring c Casing wearing ring d Casing e Column f Shaft g Sleeve h Glands i Stuffing Box j Counter flange k Gland Bolts and Nuts l Bolts and Nuts for discharge connections m Couplings

7 TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 3 OF 4 n o p Sealing arrangement Type of lubrication oil Type of motor cooling oil 8.0 Probabilistic Safety Analysis Input Data : Following data to be submitted a Mean time between failures (MTBF) : b Test Frequency : c Impact of ageing on performance : d of cycles of operation in life time: e Calibration Frequency 9.0 Drawings, Curves and Information Required with Proposal The following information shall be submitted with the proposal. 9.1 Preliminary outline drawings for the complete pump and drive assembly, showing principal dimensions and location of the various connections, supports etc. 9.2 Cross-sectional drawing indicating various components with their materials of construction. 9.3 Performance Curves Performance curves showing the total pump head, efficiency, and power consumption for the range zero to 120% of design capacity. 9.4 Description of the standard shop inspection and quality control procedures of the manufacture separately for pump and motor. Description of the pump performance testing at the shop. 9.5 Speed torque characteristics for pump and motor superimposed on each other. 9.6 Thermal withstand characteristics of the motor. 9.7 Motor data sheets as per Annexure B to specification PC-E-501 applicable. 9.8 Experience list about the supply of similar equipment for similar application DRAWINGS, DATA, INSTRUCTION MANUAL, TEST REPORTS ETC., SCHEDULE OF SUBMISSION The supplier shall submit various certified drawings and data for review of the Purchaser and afterwards for final distribution in quantities and in accordance with the procedure set up in Tendering and Contract conditions, according to the following schedule in respect of each project.

8 TECHNICAL SPECIFICATION ON SUBMERSIBLE PUMPS PAGE NO: 4 OF 4 Description Submission of for Approval after the date of issue of Purchase Order (a) General arrangement drawings of all equipments indicating principal dimensions weeks and locations of the various connections, supports (b) Detailed cross sectional drawing showing all weeks the parts of the equipment (c) Instruction manuals. weeks (d) Reports of various shop and material test, weeks performance (e) Drawing as mentioned in Clause No: 8.0 weeks (f) Inspection history document weeks 11.0 Time Required by the Supplier The contractor shall state the period required for the preparation of his drawings and the time he has allowed for approval of the drawings by the Purchaser in the delivery period specified Proof of Ability The tenderer shall submit a brief list of work executed by him to standards and tolerances as specified in Tender Document Schedule of Deviations If the proposal has got any deviation from the technical specification, the tendering conditions and the general condition of contract, tenderers shall tabulate those deviations as per section D. More sheets should be attached if required. In absence of this it will be presumed that the offer is strictly in accordance with this specification Manufacturing and Delivery Schedule 14.1 Submission of drawings and documents for approval Start manufacture Complete manufacture Testing at manufacturer s works 14.5 Complete shipment Arrival at site. Time in weeks from the Date of Issue of Purchase Order 15.0 Guarantee period offered Months