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GB/T 29403-2012Technical guide for dealing with sand abrasive erosion in reaction hydraulic turbines (English PDF)

反击式水轮机泥沙磨损技术导则

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

Level / Type

National · Recommended

Issue date

December 31, 2012

Implementation date

June 1, 2013

Scope

GB/T 29403-2012 is the English-translated version of 反击式水轮机泥沙磨损技术导则.

GB/T 29403-2012 is the Chinese standard "Technical guide for dealing with sand abrasive erosion in reaction hydraulic turbines". Its scope clause reads: This standard specifies the reaction turbine selection, design, manufacture, installation, operation, maintenance and repair of technology involved in sand abrasion Claim.

This standard applies to installations in reaction turbines Hydropower Station. Note. For water containing corrosive substances or pH turbine protection and greater precautions and other water conditions need separate consideration. Its clauses include terms and definitions.

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Document preview — GB/T 29403-2012

National Standard of the People's Republic of China

ICS: 27.140
Classification: K 55

Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 sediment passing through turbine analysis and prevention measures for sediment Station
7 turbine material selection and manufacturing
9 Turbine Operation and Maintenance
10 turbine sand abrasion guarantee value
Appendix A (informative) wear test apparatus and test methods
Annex C (informative) turbine wear observations

1 Scope

This standard specifies the reaction turbine selection, design, manufacture, installation, operation, maintenance and repair of technology involved in sand abrasion

Claim.

This standard applies to installations in reaction turbines Hydropower Station.

Note. For water containing corrosive substances or pH turbine protection and greater precautions and other water conditions need separate consideration.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 2900.45 Electrotechnical terminology Hydropower Plant Equipment

GB/T 8564 Specification for installation of hydro-generating unit

GB/T 10969 turbines, storage pumps and pump turbine passage components conditions

GB/T 15468 Turbine basic technical requirements

GB/T 15469.1 turbines, storage pumps and pump - turbines cavitation pitting evaluation - Part 1. Evaluation in reaction turbines cavitation of

SL142 muddy water turbine model acceptance test procedure (with provision in)

DL/T 838-2003 Guide of maintenance for power plant equipment

IEC 60193 turbines, storage pumps, pump turbine model acceptance test procedure (Hydraulicturbines, storagepumps andpump-turbines-Modelacceptancetests)

3 Terms and Definitions

GB/T 2900.45, GB/T 15468 and GB/T 15469.1 defined and the following terms and definitions apply to this document.

3.1 Reaction turbine

By interacting with the runner blade flow will flow potential and kinetic energy is converted into mechanical energy output from the turbine.

NOTE. The main types of reaction turbine Francis turbine, axial flow turbine, oblique flow turbine and tubular turbines and the like.

3.2 Cavitation

Water partial pressure in the flow path down to the critical pressure (generally close to the vapor pressure), the water and air nuclear development to grow into bubbles, bubble

Accumulation, flow, division and general collapse of the process.

3.3 Aspiration height staticsuctionhead

Cavitation plane turbine tail water level with a predetermined elevation difference.

Note. The height of aspiration units represented by m. […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 21 pages — is available in the English PDF.

Referenced standards

Normative references

IEC 60193

Cited by

Similar standards

GB/T 15468-2020|GB/T 8564-2003|GB/T 10969-2008|GB/T 22581-2008|GB/T 27989-2011|GB/T 25708-2010

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