1. Scope
The Standard prescribes the performance guarantee, technical requirements, and scope of supply and inspection project for design and manufacturing of hydraulic turbines, and puts forward the observant prescription for packing, transportation, preservation, installation, and operating maintenance.
The Standard is applicable for one of the following hydraulic turbines:
a) The power is 10MW or more.
b) Francis and impulse turbines, nominal diameter of their rotating runners is 1.0m or more.
c) Francis and tubular turbines, nominal diameter of their rotating runners is 3.3m or more.
2. Normative References
The following normative documents contain provision which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, the Parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 150 Steel pressure vessels
GB/T 191 Packaging-Pictorial marking for handling of goods (GB/T 191-2000, egv ISO 780: 1997)
GB/T 2900.45 Electrotechnical terminology--hydraulic turbine, storage pump and pump-turbine
GB/T 3323-1987 Methods for radiographic inspection and quality classification of radiographs for fusion welded butt joints in steel
GB/T 6075.5-2002 Mechanical vibration--Evaluation of machine vibration by measurements on non-rotating parts--Part 5: Machine sets in hydraulic power generating and pumping plants (idt ISO 10816-5: 2000)
GB/T 8564-2003 Specification installation of hydraulic turbine generator units
GB/T 9239 Balance quality of rigid rotors--Determination of permissible residual unbalance (GB/T 9239-1988, egv ISO 1940-1: 1986)
GB/T 9797-1997 Metallic coatings-Electrodeposited coatings of nickel plus chromium and of copper plus nickel plus chromium (eqv ISO 1456: 1988)
0969 Specifications for water passage components of hydraulic turbines (GB/T 10969-1996, neq IEC 60193-1: 1977)
GB 11120-1989 Turbine oil L-TSA (neq ISO 8068: 1987)
GB/T 11345-1989 Method for manual ultrasonic testing and classification of testing results for ferritic steel welds
GB/T11348.5-2002 Mechanical vibration of non-reciprocating machines—Measurements on rotating shafts and evaluation criteria--Part 5: Machine sets hydraulic power generating and pumping plants (idt ISO 7919-5: 1997)
GB/T 11805-1999 Basic specifications of automatic control components (devices) and their related system for hydroturbine-generating sets
GB/T 12469-1990 Quality assurance of welding--Requirement for fusion welding joint of steel and classification for imperfection (neq DIN 8563 T3: 1979)
GB/T 15469 Cavitation pitting evaluation in reaction hydraulic turbines (GB/T 15469-1995, neq IEC 60609: 1978)
GB/T 17189 Code for field measurement of vibrations and pulsations in hydraulic machines (GB/T 17189-1997, neq IEC 60994: 1991)
GB/T 19184-2003 Cavitation pitting evaluation in pelton turbines (IEC 60609-2: 1997, MOD)
DL/T 443 General provisions for turbine generator installation and final examination
DL/T 507-2002 Start-up test code for hydraulic-turbine and generator units
DL/T 710-1999 Code of operation for hydraulic turbines
JB/T 127 Specification of shaft forgings for turbines and generators
JB 4730-1992 Nondestructive testing for pressure equipments
JB/T 6061-1992 Non-destructive testing--Magnetic particle testing of welds
JB/T 6062-1992 Non-destructive testing--penetrant testing of welds
JB/T 8660-1997 Code of packing, transportation, and preservation for turbine generator
IEC 60041 Field Acceptance Tests to Determine the Hydraulic Performance of Hydraulic Turbines, Storage Pumps, and Pump-Turbines
IEC 60193 Hydraulic turbines, storage pumps and pump turbines--Model acceptance test
IEC 60545-1976 Guide for commissioning operation and maintenance of hydraulic turbines
CCH-70-3 Inspection code for hydraulic machinery steel casting
3. Terminologies, definitions and symbols
GB/T 2900.45 confirmed and the following terminologies, definitions, and symbols are suitable for the Standard.
3.1 Hydraulic power water level
3.1.1 Maximum flood level
ZFLmax
The maximum water level is reached when reservoir encounters dam flood; in the extraordinary operational aspect, reaching temporary maximum flood level can be allowed.
Unit: m
3.1.2 Design flood level
ZF
The maximum water level is reached when reservoir encounters deign flood; in the normal operational aspect, reaching maximum water level can be allowed.
Unit: m
3.1.3 Normal pool water level
ZPL. n
On occasions of reservoir normal operation, the retainable high water level satisfies water conservancy and allows filling water (it is also called normal high water level or design pool water level.).
Unit: m
Contents
Foreword
Introduction
1. Scope
2. Normative References
3. Terminologies, definitions and symbols
3.1 Hydraulic power water level
3.2 Water head of hydropower station
3.3 Hydraulic turbine water head
3.4 Hydraulic turbine current
3.5 Hydraulic turbine rotation speed
3.6 Hydraulic turbine power
3.7 Turbine efficiency
3.8 Main dimension of flow passage
3.9 Cavitation and abrasion damage
3.10 Turbine test
3.11 Pressure fluctuation
4. Technical requirement
4.1 General requirements
4.2 The structure and material for principal components
4.3 Specific requirement for different types hydraulic turbines
5 Performance guarantee
5.1 Guarantee period
5.2 Steady state hydraulic performance
5.3 Cavitation, corrosion, and abrasion guarantee
5.4 Hydraulic turbine stable operation scope
5.5 Vibration
5.6 Maximum momentary rotation speed and maximum and minimum momentary pressure
5.7 Water leakage of guide vane or nozzle
5.8 Noise
5.9 Hydraulic thrust
5.10 Runner crackle guarantee
5.11 Reliable index
6. Scope of supply and spare parts
6.1 Scope of supply
6.2 Spare parts
7. Document and drawing
7. 1 Delivery time and quantity
7.2 Main projects
8 Factory inspection and test
9. Nameplate, packing, transportation, and preservation
9.1 Hydraulic turbine nameplate
9.2 Packing and transportation
9.3 Preservation
10. Installation, operation, maintenance, and acceptance test
10.1 Installation and preliminary operation
10.2 Operation and maintenance
10.3 Acceptance test
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
