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Guidance for installation procedures and tolerances of hydroelectric machines - Part 4: Vertical Kaplan or propeller turbines
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GB/T 43683.4-2025
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Basic data | Standard ID | GB/T 43683.4-2025 (GB/T43683.4-2025) | | Description (Translated English) | Guidance for installation procedures and tolerances of hydroelectric machines - Part 4: Vertical Kaplan or propeller turbines | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K55 | | Classification of International Standard | 27.140 | | Word Count Estimation | 34,312 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Issuing agency(ies) | State Administration for Market Regulation; Standardization Administration of China | GB/T 43683.4-2025: Guidance for installation procedures and tolerances of hydroelectric machines - Part 4: Vertical Kaplan or propeller turbines
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ICS 27.140
CCSK55
National Standards of the People's Republic of China
Hydropower Generator Set Installation Procedures and Tolerance Guidelines
Part 4.Vertical Axial Flow Propeller or
Axial-flow fixed-blade turbine
(IEC 63132-4.2020, IDT)
Published on 2025-08-29
Implemented on 2026-03-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of Contents
Preface V
Introduction VI
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Installation Flowchart 1
4.1 Embedded Components of the Water Turbine 1
4.2 Turbine Body Components 3
5.Installation Steps 4
5.1 Embedded Components of the Water Turbine 4
5.1.1 Step 1.Setting the Measurement Baseline 4
5.1.2 Step 2.Installation of foundations for main pre-embedded pipes and tailrace pipe lining 4
5.1.3 Step 3.Foundation Pre-embedding of Tailwater Pipe Lining 4
5.1.4 Step 4.Confirmation of the foundation and installation area for the tailrace pipe lining 4
5.1.5 Step 5.Handover to Installation 5
5.1.6 Step 6.Installation of tailrace pipe lining support 5
5.1.7 Step 7.Tailwater pipe lining installation 5
5.1.8 Step 8.Installation of pre-embedded pipes around the tailrace pipe lining 7
5.1.9 Step 9.Handover to Concrete Pouring Stage 7
5.1.10 Step 10.Installation of the tailrace pipe lining 8
5.1.11 Step 11.Concrete Void Inspection 8
5.1.12 Step 12.Grouting of the tailrace pipe 9
5.1.13 Step 13.Handover to Installation 9
5.1.14 Step 14.Dimensional Inspection of Tailwater Pipe After Installation 9
5.1.15 Step 15.Tailwater Cone Installation 9
5.1.16 Step 16.Install seat ring support 10
5.1.17 Step 17.Install the seat ring 10
5.1.18 Step 18.Installation of pit lining and/or relay base plate 11
5.1.19 Step 19.Installation of pre-embedded pipes around the semi-enclosed volute casing 11
5.1.20 Step 20.Handover to Concrete Pouring Stage 12
5.1.21 Step 21.Seat ring installation and semi-enclosed volute structure casting 12
5.1.22 Step 22.Pour concrete up to generator layer 12
5.1.23 Step 23.Grouting of the seat ring 13
5.1.24 Step 24.Handover to Installation 13
5.1.25 Step 25.Inspection of the dimensions of the embedded rear seat ring 13
5.1.26 Step 26.Seat ring machining 13
5.1.27 Step 27.Installation of the runner chamber and bottom ring 14
5.1.28 Step 28.Handover to Concrete Pouring Stage 15
5.1.29 Step 29.Install 15mm of the turbine chamber
5.1.30 Step 30.Handover to Installation 15
5.1.31 Step 31.Corrosion protection of embedded components 16
5.1.32 Step 32.Completion of 16 pre-embedded components for the water turbine
5.1.33 Step 33.Installation of turbine body components 16
5.2 Turbine body components 16
5.2.1 Step 1.The pre-embedded components of the water turbine are completed (16 steps).
5.2.2 Step 2.Installation of the turbine runner support structure 16
5.2.3 Step 3-1.Assemble the turbine runner 16
5.2.4 Step 3.Install the turbine runner 17
5.2.5 Step 4.Guide vane installation 17
5.2.6 Step 5.Top cover installation 17
5.2.7 Step 6.Turbine shaft installation 18
5.2.8 Step 7.Connecting the turbine runner and main shaft 18
5.2.9 Step 8.Support cover installation 19
5.2.10 Step 9.Assemble the spindle seal seat 20
5.2.11 Step 10.Assemble the guide bearing housing 20
5.2.12 Step 11.Control ring installation 20
5.2.13 Step 12.Relay device installation 20
5.2.14 Step 13.Installation of guide vane crank arm and connecting rod 21
5.2.15 Step 14.The turbine shaft is in a free state 21
5.2.16 Step 15.Generator Installation 22
5.2.17 Step 16.Connection between turbine and generator shafts 22
5.2.18 Step 17.Axis Adjustment 23
5.2.19 Step 18.Installation of the oil receiver (axial propeller type) 24
5.2.20 Step 19.Final installation of the spindle seal 24
5.2.21 Step 20.Assembly and Adjustment of Turbine Guide Bearings 24
5.2.22 Step 21.Final adjustment of the guide vane operating mechanism 24
5.2.23 Step 22.Installation of the remaining turbine components completed 25
5.2.24 Step 23.Cleaning, painting, and inspection before the first test 25
5.2.25 Step 24.Completion of turbine body components 25
5.2.26 Step 25.Debugging 25
References 26
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document is Part 3 of GB/T 43683, "Installation Procedures and Tolerances Guidelines for Hydropower Generator Sets". GB/T 43683 has been published.
The following parts were included.
---Part 1.General Provisions;
---Part 2.Vertical Generator;
---Part 3.Vertical mixed-flow turbine or pump-turbine;
---Part 4.Vertical axial-flow propeller or axial-flow fixed-blade turbines.
This document is equivalent to IEC 63132-4.2020 "Hydrogen Generator Installation Procedures and Tolerances Guidelines - Part 4.Vertical Axial-Flow Propellers".
"Type or axial-flow fixed-blade turbine".
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Technical Committee on Standardization of Hydropower Turbines (SAC/TC175).
This standard was drafted by. China Three Gorges Corporation, China Three Gorges Construction (Group) Co., Ltd., and Harbin Electric Machinery Co., Ltd.
Limited Liability Company, China Three Gorges Wuhan Science and Technology Innovation Park, Dongfang Electric Group Dongfang Electric Machinery Co., Ltd., China Water Resources and Hydropower First Engineering Bureau Co., Ltd.
China Gezhouba Group Electromechanical Construction Co., Ltd., Chongqing Hydropower Turbine Plant Co., Ltd., State Grid Xinyuan Holding Co., Ltd., and China Southern Power Grid Dispatch Center
Peak Frequency Modulation Power Generation Co., Ltd. Engineering Construction Management Branch, China Power Construction Group Chengdu Survey and Design Institute Co., Ltd., China Yangtze Power
Joint-stock companies, Hubei Energy Group Co., Ltd., Datang Hydropower Science and Technology Research Institute Co., Ltd., and Datang Tibet Energy Development Co., Ltd.
Limited Liability Company, Xihua University.
The main drafters of this standard are. Liu Jie, Su Shuxin, Yang Nianhao, Leng Rui, Wang Xianqi, Zhao Hua, Zhang Jinjing, Liang Quanwei, Wen Yu, and Wang Jianming.
Chen Hongyu, Jiang Dengyun, Yu Hechun, Zhang Haiku, Chen Qiang, Tan Taoyu, He Ziyu, Sun Wencai, Li Honghui, Li Guoya, Wu Wei, Ma Long, Liu Gongmei,
Li Jingchun, Xu Jun, Dai Jiang, Yan Changming, Hu Qingjuan, Wei Chunlei, Deng Haifeng, Liu Daqing, Liu Xiaobing.
introduction
Hydropower construction holds a vital strategic position in my country's energy development and plays a crucial role in the national economy. With the market demand for hydropower development...
The requirements for generator sets to develop towards multiple models, high parameters, high efficiency and low consumption, safety and environmental protection are constantly increasing, and the country has clearly stated in the "14th Five-Year Plan" that...
The proposal calls for steadily advancing the construction of conventional hydropower projects while simultaneously accelerating the construction of pumped storage power stations. Therefore, it is necessary to adhere to existing standards and regulations.
Based on this, relevant research was conducted on the installation and inspection of hydro-generator units, and applicable methods for mixed-flow, axial-flow propeller, or axial-flow fixed-flow turbine generator sets were developed.
Installation and inspection standards and specifications for propeller, axial flow, and impulse turbine generator sets.
GB/T 43683, "Guidelines for Installation Procedures and Tolerances of Hydropower Generator Sets," is proposed to consist of the following parts.
---Part 1.General Provisions. The purpose is to specify the general technical requirements for the installation of hydro-generator units.
---Part 2.Vertical Generators. The purpose is to standardize the installation procedures and steps required for vertical generators.
---Part 3.Vertical Mixed-Flow Turbines or Pump-Turbines. The purpose is to standardize vertical mixed-flow turbines or pump-turbines.
Installation and step requirements.
---Part 4.Vertical Axial-Flow Propeller or Axial-Flow Fixed-Propeller Turbines. The purpose is to standardize vertical axial-flow propeller or axial-flow fixed-propeller turbines.
Installation procedures and steps for water turbines.
---Part 5.Bulb-type Axial-flow Hydropower Units. The purpose is to standardize the installation procedures and steps for bulb-type axial-flow hydropower units.
---Part 6.Vertical Impulse Turbines. The purpose is to standardize the installation procedures and steps required for vertical impulse turbines.
Hydropower Generator Set Installation Procedures and Tolerance Guidelines
Part 4.Vertical Axial Flow Propeller or
Axial-flow fixed-blade turbine
1.Scope
This document provides general installation procedures and tolerance requirements for vertical axial-flow propeller or axial-flow fixed-blade turbines. Installation methods for the units.
This document describes a general installation process. In this document, "hydro turbine" refers to either a vertical axial-flow propeller turbine or an axial-flow fixed-blade turbine.
The size of generator unit components, the design of the generator unit, the layout of the power plant, or the delivery time of components may lead to additional steps or cancellations of certain processes.
Changes to steps and/or installation order.
This document is only binding if agreed upon by both contracting parties.
This document is not intended for purely commercial use unless it is inextricably linked to unit installation activities.
Tolerances may vary in different documents; the tolerances in this document are determined based on common practice and experience.
Regardless of whether this document specifies that the manufacturer shall provide the documentation, drawings, or information, each manufacturer shall provide the necessary documentation, drawings, or information for the equipment it supplies.
Related information.
2 Normative references
This document has no normative references.
3.Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4.Installation Flowchart
4.1 Embedded Components of the Water Turbine
Figure 1 shows the general installation procedure diagram for the pre-embedded components of the water turbine.
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GB/T 43683.4-2025: Guidance for installation procedures and tolerances of hydroelectric machines - Part 4: Vertical Kaplan or propeller turbines
Status: Valid
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