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GB/T 35709-2017Maintenance regulation for bulb hydro-turbine generating units (English PDF)

灯泡贯流式水轮发电机组检修规程

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 29, 2017

Implementation date

July 1, 2018

Scope

GB/T 35709-2017 is the English-translated version of 灯泡贯流式水轮发电机组检修规程.

GB/T 35709-2017 is the Chinese standard "Maintenance regulation for bulb hydro-turbine generating units". Its scope clause reads: This standard stipulates the maintenance level, maintenance cycle, maintenance items, inspection and repair procedures, acceptance and testing of bulb-type turbine-generator sets, etc. Claim.

This standard applies to bulb turbine tuner units with rated power of 5MW and above or runner diameter of 2.5m and above. repair. Other bulb tune turbine unit maintenance can refer to the implementation. Its clauses include terms and definitions.

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Document preview — GB/T 35709-2017

National Standard of the People's Republic of China

ICS: 27.140
Classification: F 23

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Basic regulations
4.1 Service Interval and Deactivation Time
4.2 Inspection Projects and Quality Checkpoints
4.3 Overhaul Engineering Planning and Planning
4.4 Maintenance Preparation
4.5 Maintenance and Safety Ring Management
4.6 Maintenance and Repair Phase Organization and Management
4.7 General requirements for inspection process quality
4.8 Overhaul General Process
5 Turbine Overhaul
5.1 Wheel and Spindle Inspection
5.2 Overhaul of water guides
5.3 Expansion joint and runner room inspection
5.4 Duct Inspection
5.5 Tubular seat and baffle plate inspection
5.6 Oil Receiver and Operation Oil Tubing Inspection
5.7 Turbine Bearings Inspection and Repair
5.8 Spindle Seal Overhaul
5.9 Unit Center Check Processing
6 Generator Overhaul
6.1 Stator Inspection
6.2 Rotor Overhaul
6.3 Combined Bearing Repair
6.4 Lamp Head Assembly Repair
6.5 Braking Device Overhaul
6.6 Generator Ventilation and Cooling System Overhaul
6.7 Generator Neutral Point Equipment Overhaul
7 Bearing Oil System Overhaul
7.1 Bearing Tank Service
7.2 Bearing Oil Cooler Overhaul
8 Unit Inspection Acceptance and Test
8.1 Inspection and Acceptance
8.2 Starting the test project
8.3 Overall Inspection and Requirements after Overhaul
9 Inspection Summary and Evaluation
9.1 Maintenance Information Requirements
9.2 Post-Maintenance Assessment
Appendix D (Informative) Reference Flow Chart for Preparation of Class A Overhaul of Bulb Tubular Turbine Generators
Appendix E (Informative Appendix) General Disassembly Process Flow of Bulb Tubular Turbine Generators
Appendix F (Informative Appendix) Flowchart for General Installation of Bulb Tubular Turbine Generating Units
Appendix G (Informative) Maintenance Critical Data Records

1 Scope

This standard stipulates the maintenance level, maintenance cycle, maintenance items, inspection and repair procedures, acceptance and testing of bulb-type turbine-generator sets, etc.

Claim.

This standard applies to bulb turbine tuner units with rated power of 5MW and above or runner diameter of 2.5m and above.

repair. Other bulb tune turbine unit maintenance can refer to the implementation.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article

Pieces. For undated references, the latest version (including all amendments) applies to this document.

GB/T 8564 Installation Specifications for Hydrogenerator Units

General specification of GB/T 16938 fastener bolts, screws, studs and nuts

GB/T 24001 Environmental Management System Requirements and Usage Guidelines

GB 26164.1 Code of Practice for Electrical Safety Part 1. Thermal and Mechanical

GB/T 28001 occupational health and safety management system requirements

DL/T 596 Preventive Test Procedures for Electrical Equipment

DL/T 827 Bulb Turbine Generator Startup Test Procedure

DL/T 1318 Specification for Technical Supervision of Hydroelectric Power Plants

DL/T 5070 on-site manufacturing installation and welding process guide for hydro turbine metal volute

DL/T 5113.11 Standard for the Quality Assessment of Single Projects of Hydropower and Water Conservancy Capital Construction Project Part 11. Bulb Tubular Water

Wheel generator installation engineering

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Maintenance level

Based on the principle of maintenance and decommissioning time of bulb-type turbine-generator units, the maintenance of the unit is divided into four grades. A, B, C, and D.

3.2 Class A overhaul Aclassmaintenance

Complete disassembling inspections and repairs of turbines and generators on the unit or alone to maintain, restore, or improve equipment performance.

3.3 Class B overhaul Bclassmaintenance

For some problems with the unit's equipment, disassemble the unit's equipment and repair. Class B maintenance can be based on unit equipment

According to the results of the state assessment, some A-level maintenance projects or periodic rolling maintenance projects are targeted.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 45 pages — is available in the English PDF.

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