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1、BRITISH STANDARD BS IEC 61366-7:1998 Hydraulic turbines, storage pumps and pump-turbines Tendering Documents Part 7: Guidelines for technical specifications for storage pumps ICS 27.140 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:41:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS IEC
2、61366-7:1998 This British Standard, having been prepared under the direction of the Engineering Sector Board was published under the authority of the Standards Board and comes into effect on 15 September 1998 BSI 04-1999 ISBN 0 580 30321 7 National foreword This British Standard reproduces verbatim
3、IEC 61366-7:1998 and implements it as the UK national standard. The UK participation in its preparation 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
4、any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor 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 1
5、997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. 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
6、 Standards which implement international or European publications referred to in this document may be 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 S
7、tandard does not purport to include all the necessary provisions of a contract. Users of British Standards 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 cov
8、er, an inside front cover, pages i and ii, the IEC title page, pages ii to iv, pages 1 to 17 and a back cover. This 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 sinc
9、e publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:41:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS IEC 61366-7:1998 BSI 04-1999i Contents Page National forewordInside front cover Text of IEC 61366-71 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26
10、 11:41:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:41:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:41:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS IEC 61366-7:1998 ii B
11、SI 04-1999 Contents Page 0Introduction to technical specifications1 1Scope2 2Reference documents2 3Technical requirements2 3.1Scope of work2 3.2Limits of the contract3 3.3Supply by Employer3 3.4Design conditions4 3.5Technical performance and other guarantees6 3.6Mechanical design criteria8 3.7Design
12、 documentation9 3.8Materials and construction9 3.9Shop inspection and testing10 4Technical specifications for fixed/embedded components11 4.1Spiral case11 4.2Diffuser ring12 4.3Foundation ring12 4.4Suction tube and suction tube liner (if any)12 4.5Pit liner12 4.6Conveyor case and return ring (if any
13、)12 5Technical specifications for stationary/removable components13 5.1Headcover and bottom ring13 5.2Stationary wearing rings13 5.3Replaceable diffuser ring13 6Technical specifications for rotating parts, bearings and seals13 6.1Impeller13 6.2Main shaft13 6.3Guide bearing13 6.4Main shaft seal14 6.5
14、Sandstill (maintenance) seal14 7Technical specifications for thrust bearing14 7.1Design14 7.2Bearing support14 7.3Bearing assembly14 7.4Oil injection pressure lift system14 8Technical specifications for miscellaneous components14 8.1Walkways, access platforms and stairs14 8.2Lifting fixtures14 8.3Sp
15、ecial tools14 8.4Standard tools14 8.5Storage pump pit hoist15 8.6Nameplate15 9Technical specifications for auxiliary systems15 9.1Bearing lubrication system15 9.2Impeller pressure balancing and pressure relief lines15 9.3Storage pump pit drainage15 9.4Tailwater depression system15 10Technical specif
16、ications for instrumentation15 10.1Controls15 10.2Indication15 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:41:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS IEC 61366-7:1998 BSI 04-1999iii Page 10.3Protection15 11Spare parts15 12Model acceptance tests15 13Site installation and commis
17、sioning tests16 13.1General16 13.2Installation procedures16 13.3Tests during installation16 13.4Commissioning tests17 14Field acceptance tests17 14.1Scope and reports17 14.2Inspection of cavitating pitting17 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:41:40 GMT+00:00 2006, Uncontrolled
18、 Copy, (c) BSI BS IEC 61366-7:1998 iv BSI 04-1999 Table 1 Summary of guide for the preparation of Tendering Documents for hydraulic turbines, storage pumps and pump-turbines Contents of guide IEC 61366-1 to IEC 61366-7Sample table of contents of tendering documents (TD) (Example for the Francis turb
19、ines; see 61366-1, Annex A) PartClauseTitleChapterTitle 1 1 1 1 1 1 1 1 1 2 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 genera
20、l conditions, special conditions and general requirements 1 2 3 4 5 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 specific
21、ations Technical requirements Scope of work Limits of the contract 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 Techn
22、ical specifications for stationary/removable components Technical specifications for guide vane regulating apparatus Technical specifications for rotating parts, bearings and seals Technical specifications for thrust bearings Technical specifications for miscellaneous components Technical specificat
23、ions for auxiliary systems Technical specifications for instrumentation Spare parts Model tests Installation and commissioning Field acceptance tests 1Annexes 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
24、 for tender form Examples of technical data sheets Technical performance guarantees Example of cavitation pitting guarantees Check list for model test specifications Sand erosion considerations 2 to 7Technical specifications 2 3 4 5 6 7 Francis turbines Pelton turbines Kaplan and propeller turbines
25、Tubular turbines Pump-turbines Storage pumps Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:41:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS IEC 61366-7:1998 BSI 04-19991 0 Introduction to technical specifications The main purpose of the technical specifications is to describe the spec
26、ific technical requirements for the hydraulic machine for which the Tendering Documents (TD) are being issued. To achieve clarity and to avoid confusion in contract administration, the Employer should not specify anything in the technical specifications, which is of importance only to the preparatio
27、n 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 sections of the Tendering Documents but not vice versa. As a general rule the word “Tenderer” should be confined in use only to TD chap
28、ter 1 “Tendering requirements” of the Tendering Document, elsewhere the term “Contractor” should be used. Special attention should be given to items of a project specific nature such as materials, protective coating systems, mechanical piping systems, electrical systems, instrumentation. It is commo
29、n for Employers 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 specified in TD chapter 5 “General requirements”. Technical specifications for the various types of hydraulic machi
30、nes included in this Guide are provided in the following clauses: Francis turbines (Part 2); Pelton turbines (Part 3); Kaplan and propeller turbines (Part 4); Tubular turbines (Part 5); Pump-turbines (Part 6); Storage pumps (Part 7). The guidelines for preparation of storage pump specifications incl
31、ude technical specifications for the following: Design conditions: project arrangement, hydraulic conditions, specified conditions, modes of operation, generator characteristics, motor characteristics, synchronous condenser characteristics, speed-up procedure for pump-mode, transient behaviour data,
32、 change-over times and characteristics, stability of the system, noise, vibration, pressure fluctuations and safety requirements. Technical performance and other guarantees: power; discharge; specific hydraulic energy (head); efficiency; maximum momentary pressure; minimum momentary pressure; maximu
33、m momentary reverse overspeed; maximum steady-state reverse runaway speed; cavitation pitting; hydraulic thrust; change over times; maximum weights and dimensions for transportation, erection and maintenance. Mechanical design criteria: Design standards, stresses and deflections and special design c
34、onsiderations (earthquake, acceleration, etc.). Design documentation: Contractors input needed for the Employers design, the Contractors drawings and data, the Contractors review of the Employers design and technical reports by the Contractor. Materials and construction: Material selection and stand
35、ards, quality assurance procedures, shop methods, corrosion protection 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)
36、, diffuser, suction tube, suction tube liner, pit liner, and foundation plates and anchorage. Stationary/removable components: Headcover, bottom ring, facing plates, stationary wearing ring, diffuser ring. Rotating parts, bearings and seals: Impeller, main shaft, guide bearing with oil supply, oil/w
37、ater cooler, main shaft seal, standstill shaft seal. Thrust bearing (when specified as 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 any), oil/water coolers, instrumentation
38、. Miscellaneous components: Walkways, lifting fixtures, special tools, standard tools, pump pit hoist, nameplate, suction tube maintenance platform. Auxiliary systems: Impeller pressure balancing and pressure relief lines, pump pit drainage and other drainage systems; lubrication, tailwater depressi
39、on, cooling water supply for impeller seal for blow-down operation. Instrumentation: Controls, indication and protection. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 11:41:40 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS IEC 61366-7:1998 2 BSI 04-1999 Spare parts: Basic spare parts. Model
40、 acceptance tests: Test requirements. Site installation and commissioning tests: Installation procedures and commissioning tests. Field acceptance tests: Scope of field tests, reports, inspection of cavitation pitting. An example of the proposed table of contents for Tendering Documents for a Franci
41、s turbine is given in Annex A of IEC 61366-1. The example does not include technical specifications for relief valves, high and low-pressure side valves or gates which, at the Employers option, may be included in the Tendering Documents for storage pumps or may be specified in separate documents. A
42、storage pump may be driven by a motor or by a motor-generator in case of a tandem unit. In Part 7, the term motor is also used in the case of a motor-generator (tandem unit). Part 7 does not include the motor and electrical system which may, at the Employers option, be included in the Tendering Docu
43、ments for the storage pump or specified as separate documents. Chapter 6 “technical specifications” of the Tendering Documents should be arranged as follows: 1 Scope This technical report, referred to herein as the Guide, is intended to assist in the preparation of Tendering Documents and tendering
44、proposals and in the evaluation of tenders for hydraulic machines. This part of IEC 61366 provides guidelines for storage pumps. 2 Reference documents IEC 60041:1992, Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines. IEC 60193:1965,
45、 International code for model acceptance tests of hydraulic turbines. IEC 60609:1978, Cavitation pitting evaluation in hydraulic turbines, storage pumps and pump-turbines. IEC 60805:1985, Guide for commissioning operation and maintenance of storage pumps and of pump-turbines operating as pumps. IEC
46、60994:1991, Guide for field measurement of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump turbines). ISO 3740:1980, Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards and for the preparation of noise test codes.
47、 3 Technical requirements 3.1 Scope of work This subclause should describe the scope of work and the responsibilities which are to be conferred upon Contractor. The general statement of scope of work presented in TD1) Section 2.1 (5.1 in IEC 61366-1) shall be consistent with what is presented here.
48、In a similar manner, pay items in the tender form, TD section 1.2 (4.2 in IEC 61366-1) should be defined directly from TD subsection 6.1.1. The scope of work should begin with a general statement which outlines the various elements of the work including (where applicable) the layout, the design, mod
49、el 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. It is important to study in detail the general arrangement of a storage pump, especially in case of a ternary unit. The choice of a vertical or horizontal shaft arrangement may be influenced by civil engine
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