GB/T 32745-2016Guidelines on protection against sand abrasion and cavitation for small hydraulic turbines (English PDF)
小型水轮机磨蚀防护导则
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 14, 2016
Implementation date
January 1, 2017
Scope
GB/T 32745-2016 is the English-translated version of 小型水轮机磨蚀防护导则.
GB/T 32745-2016 is the Chinese standard "Guidelines on protection against sand abrasion and cavitation for small hydraulic turbines".
Its scope clause reads: This standard specifies the protective measures (including material protection measures and comprehensive protective measures) required for the protection of small turbine abrasion and Technical requirements.
This standard applies to turbine power protection of 500 kW to 15 MW, including new construction, expansion, alteration or commissioning Station turbine abrasion protection.
Power station installed capacity of less than 500kW turbine abrasion protection, can refer to the implementation of this standard. Its clauses include normative reference documents; terms, definitions and symbols.
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Document preview — GB/T 32745-2016
National Standard of the People's Republic of China
- ICS
- 27.140
- Classification
- K 55
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 normative reference document
- 3 terms, definitions and symbols
- 4 General provisions
- 4.2 Observation of turbine abrasion
- 6 material protection
- 6.1 Selection of material protection
- 6.2 Implementation of material protection measures
- 6.3 Inspection and maintenance of protective coating
- 7 Integrated protective measures
- 7.2 Turbine Manufacturing and Installation
- 7.3 Turbine operation, maintenance and repair
- Appendix A (informative) Different types of turbine main abrasive parts
- Appendix B (informative) Characteristics of turbine turbine failure characteristics
- Appendix C (informative) Common substrate and range of use for water turbines
- Appendix D (informative) Material protection measures and scope of application
1 Scope
This standard specifies the protective measures (including material protection measures and comprehensive protective measures) required for the protection of small turbine abrasion and
Technical requirements.
This standard applies to turbine power protection of 500 kW to 15 MW, including new construction, expansion, alteration or commissioning
Station turbine abrasion protection. Power station installed capacity of less than 500kW turbine abrasion protection, can refer to the implementation of this standard.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 2900.45 Electrotechnical terminology Hydrographic equipment for hydropower stations
Specification for installation of GB/T 8564 hydro - generator sets
General rules for surface pretreatment of thermal sprayed metal parts GB/T 11373
GB/T 15469.1 Evaluation of cavitation erosion of turbines, pump and water pump turbines - Part 1. Cavitation assessment of counterattack turbines
GB/T 21718 basic technical conditions for small turbines
Technical guide for abrasion of counterattack turbine
Guide for maintenance of equipment for DL/T 838 power generation enterprises
Code for analysis of sediment in river
3 terms, definitions and symbols
GB/T 2900.45, GB/T 21718 and GB/T 15469.1 and the following terms, definitions and symbols apply to this document.
3.1 Wear sedimentabrasion
Damage to the material caused by the surface of the overcurrent component.
3.2 Wear amount of amountofabrasion
The amount of material damage on the surface of the overcurrent component due to wear.
Note. The wear can be expressed by the wear depth deltaH, the wear area A, the mass loss G, or the volume loss V. Its units were mm, cm2, kg or cm3
Said.
3.3 Sediment content
Sediment content in unit volume water - sediment mixture.
Note. The unit of sediment concentration is expressed in kg/m3.
3.4 Multi - year average sediment concentration
SP Average annual average sediment concentration of measured data over the years.
Note. The unit of annual average sediment concentration is expressed in kg/m3.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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