BS IEC 61366-4-1998 Hydraulic turbines storage pumps and pump turbines - Tendering documents - Guidelines for technical specifications for Kaplan and propeller turbines《水轮机、蓄能泵和水泵涡.pdf

1、BRITISH STANDARD BS IEC 61366-4:1998 Hydraulic turbines, storage pumps and pump-turbines Tendering Documents Part4: Guidelines for technical specifications for Kaplan and propeller turbines ICS27.140BSIEC61366-4:1998 This British Standard, having been prepared under the directionof the Engineering S

2、ectorBoard, was published underthe authority of the Standards Board and comes into effect on 15 September 1998 BSI 04-1999 ISBN 0 580 30318 7 National foreword This British Standard reproduces verbatim IEC61366-4:1998 and implements it as the UK national standard. The UK participation in its prepara

3、tion was entrusted to Technical Committee MCE/15, Hydraulic turbines, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; m

4、onitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has b

5、een renumbered as IEC60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be

6、found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Stand

7、ards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi toiv, theIEC title page, page ii, pages1 to19 and a back cover. This

8、 standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSIEC61366-4:1998 BSI 04-1999 i Contents Page National foreword Inside front co

9、ver 0 Introduction to technical specifications 1 1 Scope 2 2 Reference documents 2 3 Technical requirements 2 3.1 Scope of work 2 3.2 Limits of the contract 3 3.3 Supply by employer 3 3.4 Design conditions 4 3.5 Technical performance and other guarantees 6 3.6 Mechanical design criteria 8 3.7 Design

10、 documentation 9 3.8 Materials and construction 9 3.9 Shop inspection and testing 10 4 Technical specifications for fixed/embedded components 11 4.1 Spiral case 11 4.2 Stay ring 12 4.3 Foundation ring 12 4.4 Discharge ring 12 4.5 Draft tube and draft tube liner 13 4.6 Pit liner 13 5 Technical specif

11、ications for stationary/removable components 13 5.1 Headcover and bottom ring 13 5.2 Guide vanes 14 6 Technical specifications for guide vane regulating apparatus 14 6.1 Servomotors 14 6.2 Connecting rods 14 6.3 Regulating ring 14 6.4 Guide vane linkage 14 6.5 Guide vane overload protection 14 6.6 L

12、ocking devices 14 7 Technical specifications for rotating parts, guide bearings and seals 14 7.1 Runner 14 7.2 Runner blade regulating apparatus 15 7.3 Main shaft 15 7.4 Turbine guide bearing 15 7.5 Main shaft seal 15 7.6 Standstill (maintenance) seal 15 8 Technical specifications for thrust bearing

13、 (when specified as part of turbine supply) 16 8.1 Design data 16 8.2 Bearing support 16 8.3 Bearing assembly 16 8.4 Oil injection pressure lift system 16 9 Technical specifications for miscellaneous components 16 9.1 Walkways, access platforms and stairs 16 9.2 Lifting fixtures 16BSIEC61366-4:1998

14、ii BSI 04-1999 Page 9.3 Special tools 16 9.4 Standard tools 16 9.5 Turbine pit hoist 16 9.6 Nameplate 16 10 Technical specifications for auxiliary systems 16 10.1 Turbine pit drainage 16 10.2 Lubrication of guide vane regulating system 16 10.3 Air admission system 17 10.4 Tailwater depression system

15、 17 11 Technical specifications for instrumentation 17 11.1 Controls 17 11.2 Indication 17 11.3 Protection 17 12 Spare parts 17 13 Model acceptance tests 17 14 Site installation and commissioning tests 18 14.1 General 18 14.2 Installation procedures 18 14.3 Tests during installation 18 14.4 Commissi

16、oning tests 19 15 Field acceptance tests 19 15.1 Scope and reports 19 15.2 Inspection of cavitation pitting 19 Table 1 Summary of guide for the preparation of Tendering Documentsforhydraulic turbines, storage pumps and pump-turbines iiiBS IEC 61366-4:1998 BSI 04-1999 iii Table 1 Summary of guide for

17、 the preparation of Tendering Documents for hydraulic turbines, storage pumps andpump-turbines CONTENTS OF GUIDE IEC61366-1 to IEC61366-7 SAMPLE TABLE OF CONTENTS OF TENDERING DOCUMENTS (TD) (Example for the Francis turbines; see61366-1, Annex A) Part Clause Title Chapter Title 1 1 1 1 1 1 1 1 1 1 2

18、 3 4 5 6 General and annexes Object and scope of this guide Reference documents and definitions Arrangement of Tendering Documents Guidelines for tendering requirements Guidelines for project information Guidelines for general conditions, special conditions and general requirements Annexes 1 2 3 4 5

19、 6 6.1 6.1.1 6.1.2 6.1.3 6.1.4 6.1.5 6.1.6 6.1.7 6.1.8 6.1.9 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 Tendering requirements Project information General conditions Special conditions General requirements Technical specifications Technical requirements Scope of work Limits of the contract

20、Supply by Employer Design conditions Performance and other guarantees Mechanical design criteria Design documentation Materials and construction Shop inspection and testing Technical specifications for fixed/embedded components Technical specifications for stationary/removable components Technical s

21、pecifications for guide vane regulating apparatus Technical specifications for rotating parts, bearings and seals Technical specifications for thrust bearings Technical specifications for miscellaneous components Technical specifications for auxiliary systems Technical specifications for instrumenta

22、tion Spare parts Model tests Installation and commissioning Field acceptance tests A B C D E F G H Sample table of contents of Tendering Documents for Francis turbines Comments on factors for evaluation of tenders Check list for tender form Examples of technical data sheets Technical performance gua

23、rantees Example of cavitation pitting guarantees Check list for model test specifications Sand erosion considerations 2 to7 Technical specifications 2 3 4 5 6 7 Francis turbines Pelton turbines Kaplan and propeller turbines Tubular turbines Pump-turbines Storage pumpsiv blankii blankBSIEC61366-4:199

24、8 BSI 04-1999 1 0 Introduction to technical specifications The main purpose of the technical specifications is to describe the specific technical requirements for the hydraulic machine for which the Tendering Documents (TD) are being issued. To achieve clarity and to avoid confusion in contract admi

25、nistration, the Employer should not specify anything in the technical specifications which is of importance only to the preparation of the tender. Such information and instructions should be given only in the instructions to Tenderers (ITT). Accordingly, the ITT may refer to other chapters and secti

26、ons of the Tendering Documents but not vice versa. As a general rule the word “Tenderer” should be confined in use only to TD chapter1 “Tendering requirements”; elsewhere the term “Contractor” should be used. Special attention should be given to items of a project specific nature such as materials,

27、protective coating systems, mechanical piping systems, electrical systems and instrumentation. It is common for the Employer to use technical standards for such items which would apply to all contracts for a particular project or projects. In this event, detailed technical standards should be specif

28、ied in TD chapter5 “General requirements”. Technical specifications for the various types of hydraulic machines included in this guide are provided in the following parts: Francis turbines (Part2); Pelton turbines (Part3); Kaplan and Propeller turbines (Part4); Tubular turbines (Part5); Pump-turbine

29、s (Part6); Storage pumps (Part7). The guidelines for preparation of Kaplan and propeller turbine specifications include technical specifications for the following. Design conditions: project arrangement, hydraulic conditions, specified conditions, mode of operation, generator characteristics, synchr

30、onous condenser characteristics, transient behaviour data, stability of the system, noise, vibration, pressure fluctuations and safety requirements. Technical performance and other guarantees: power; discharge; efficiency; maximum momentary pressure; minimum momentary pressure; maximum momentary ove

31、rspeed; maximum steady-state runaway speed; cavitation pitting; hydraulic thrust; maximum weights and dimensions for transportation, erection and maintenance. Mechanical design criteria: design standards, stresses and deflections and special design considerations (earthquake acceleration, etc.). Des

32、ign documentation: Contractors input needed for the Employers design, Contractors drawings and data, Contractors review of the Employers design and technical reports by Contractor. Materials and construction: material selection and standards, quality assurance procedures, shop methods, corrosion pro

33、tection and painting. Shop inspection and testing: general requirements and reports, material tests and certificates, dimensional checks, shop assembly and tests. Fixed/embedded components: spiral case with compressible wrapping (if any), stay ring, foundation ring, discharge ring, draft tube, draft

34、 tube liner, pit liner, and foundation plates and anchorages. Stationary/removable components: headcover, bottom ring (may be fixed), facing plates, stationary wearing ring, guide vanes. Regulating apparatus for guide vanes: servomotor, connecting rods, regulating ring, guide vane linkage system, gu

35、ide vane overload protection and locking devices, mechanical synchronizing device (if any). Rotating parts, bearings and seals: runner, main shaft, intermediate shaft, guide bearing with oil supply, oil/water cooler, main shaft seal and standstill (maintenance) shaft seal. Runner blade regulation: s

36、ervomotor assembly with oil supply, linkage system, crosshead and oilhead.BSIEC61366-4:1998 2 BSI 04-1999 Thrust bearing (when part of the hydraulic machine supply): bearing support, thrust block, rotating ring, thrust bearing pads and pivots, oil sump with oil supply (common with guide bearing, if

37、any), oil/water coolers, instrumentation. Miscellaneous components: walkways, lifting fixtures, special tools, standard tools, turbine pit hoist, nameplate, draft tube maintenance platform. Auxiliary systems: turbine pit drainage and other drainage systems; lubrication, draft tube air admission, tai

38、lwater depression. Instrumentation: controls, indication and protection. Spare parts: basic spare parts. Model tests: test requirements. Site installation and commissioning tests: installation procedures and commissioning tests. Field acceptance tests: scope of field tests, test measurement methods,

39、 reports and inspection of cavitation pitting. An example of the proposed table of contents for Tendering Documents for a Francis turbine is given in Annex A. The example does not include technical specifications for the control system, relief valves, or high and low-pressure side valves or gates wh

40、ich, at the Employers option, may be included in the Tendering Documents for the Kaplan and propeller turbine or may be specified in separate documents. Chapter6 (technical specifications) of the Tendering Documents should be arranged as follows: 1 Scope This technical report, referred to herein as

41、the Guide, is intended to assist in the preparation of Tendering Documents and tendering proposals and in the evaluation of tenders for hydraulic machines. This part of IEC61366 provides guidelines for Kaplan and propeller turbines. 2 Reference documents IEC60041:1992, Field acceptance tests to dete

42、rmine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines. IEC60193:1965, International code for model acceptance tests of hydraulic turbines. IEC60308:1970, International code for testing of speed governing systems for hydraulic turbines. IEC60545:1976, Guide for commis

43、sioning, operation and maintenance of hydraulic turbines. IEC60609:1978, Cavitation pitting evaluation in hydraulic turbines, storage pumps and pump-turbines. IEC60994:1991, Guide for field measurement of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump-turbines). IE

44、C61362, Guide to specification of hydro-turbine control systems 1) . ISO3740:1980, Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards and for the preparation of noise test codes. 3 Technical requirements 3.1 Scope of work This subclause should de

45、scribe the scope of work and the responsibilities which are to be conferred upon the Contractor. The general statement of scope of work presented in TD 2)section2.1(5.1) shall be consistent with what is presented here. In a similar manner, pay items in the tender form, TD subsection1.2(4.2), should

46、be defined directly from TD subsection6.1.1. 6.1 Technical requirements; 6.2 Technical specifications for fixed/embedded components; 6.3 Technical specifications for stationary/removable components; 6.4 Technical specifications for guide vane regulating apparatus; 6.5 Technical specifications for ro

47、tating parts, guide bearings and seals; 6.6 Technical specifications for thrust bearing; 6.7 Technical specifications for miscellaneous components; 6.8 Technical specifications for auxiliary systems; 6.9 Technical specifications for instrumentation; 6.10 Spare parts; 6.11 Model acceptance tests; 6.1

48、2 Site installation and commissioning; 6.13 Field acceptance tests. 1) To be published. 2) All references to Tendering Documents (TD) apply to Annex A of IEC61366-1.BSIEC61366-4:1998 BSI 04-1999 3 The scope of work should begin with a general statement which outlines the various elements of the work

49、 including (where applicable) the design, model testing, supply of materials and labour, fabrication, machining, quality assurance, quality control, shop assembly, shop testing, spare parts, transportation to site, site installation, commissioning, acceptance testing, warranty and other services specified or required for the items of work. The general statement should be followed by a specific and detailed list of the major items which the Employer wishes to have as separate payment i