1、STDIBSI BS EN 455LO-b-9-ENGL 2000 E Lb24bb9 O24552 bTL I BRITISH STANDARD Guide for procurement of power station equipment - Part 6-9: Turbine auxiliaries - Cooling water systems The European Standard EN 4551W92 has the status of a British Standard 3s EN C55 10-6-9:2000 ICs 27 MO, 27 loo NO COPYING
2、WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW National foreword This British Standard is the English language version of EN 45510-6-91999. The UK participation in its preparation was entsusted to Technical Committee W-/20, Power engineering steering commitke, which has the responsibili
3、ty to: This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Stan- Committee and comes into effect on 15 January 2000 O BSI 01-2000 ISBN O 580 35363 X - aid enquirers to understand the text; - present to the resp
4、onsible European committee any enquiries on the - monitor related international and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK A list of organhations represented on this committee can be obtained on request to its
5、secretary. Cross-references The British Slzndards 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 Stan
6、dards Elemonic Catalogue. A British Standard does not purport to include ad 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
7、 This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 25 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd*No. ID* I EUROPEAN STANDARD NORME EUROPENNE EUROP
8、ISCHE NORM EN 45510419 October 1999 ICs English version Guide for procurement of power station equipment - Part 6-9: Turbine auxiliaries - Cooling water systems Guide pour lacquisition dquipements destins aux centrales de production dlectricit - Partie 6-9: Auxiliaires de turbine - Systmes deau de r
9、efroidissement Leitfaden fr die Beschaffung von Ausrstungen fr Kraftwerke - Teil 6-9: Turbinenhilfseinrichtungen - K h Iwassersystem This European Standard was approved by CENCENELEC on 1 October 1999. CENICENELEC members are bound to comply with the CENKENELEC Internal Regulations which stipulate t
10、he conditions for giving thS European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references corcerning such national standards may be obtained on application to the Central Secretariat or to any CENKENELEC member. This European Standard ex
11、ists in three official versions (English, French, German). A version in any other language made by traislation under the responsibility of a CENKENELEC member into its own language and notified to the Central Secretariat has the same status as the oficial versions. CENKENELEC members are the nationa
12、l standards bodies and national electrotechnical committees, respectively, of Austria, Belgum, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal,Spain, Sweden, Switzerland and United Kingdom. CEN Central Secretariat: rue de
13、Stassart, 36 B-1050 Brussels CENELEC CENELEC Central Secretariat: rue de Stassart, 35 B-1050 Brussels O 1999 CENiCENELEC All rights of exploitation in any form and by any means reserved worldwide for CEN national Members and for CENELEC Members. Ref. No. EN 45510-6-9:1999 E Page 2 EN 45510-6-911999
14、Foreword -. 4 1 Scope . 6 2 Normative references .-. 7 3 Definitions - 7 3.1 Organizational terms . 7 3.2 Technical terms . . 7 3.3 General terms 8 4 Brief overall project description - . 9 4.1 Role and organization of purchaser 9 4.2 Site location . 9 4.3 Equipment task 9 4.4 Equipment to be purcha
15、sed . 10 4.5 Control and instrumentation . 10 4.6 Electrical supplies and other services . . 10 4.7 Other interfaces . 10 4.8 Project programme . 10 4.9 Equipment identification systems . 11 5 Extent of supply .- II 6 Terminal points - 12 7 7.2 Manning levels . 12 Operational requirements . . 12 7.1
16、 Operating environment . . 12 7.3 Normal operation 12 7.4 Operating hours 12 Further operational requirements . 13 Components requiring periodic maintenance . 13 Performance requirements ._. 14 7.5 Start-up and shutdown 7.6 Abnormal conditions . 7.7 8 Life expectancy . 13 8.1 Design life 13 8.2 9 9.
17、1 Duty . 14 9.2 Performance 14 9.3 Equipment margins . 14 9.4 Availability 15 9.5 Levels of component redundancy . 15 9.6 10 Design and fabrication - 15 10.2 Design justification . 17 10.3 Material selection 17 10.4 Safety . . 17 10.5 Interchangeability 18 10.6 Fabrication methods . 18 11 Maintenanc
18、e requirements -. 18 11.1 Planned maintenance . 18 Further performance requirements . 15 10.1 Specific equipment features . 15 I 1.2 Personnel safety . 18 1 1.3 Requirements for access 18 11.4 Lifting requirements 18 1 1.5 Special tools . 18 11.6 Test equipment 18 OBSI 01-2000 STD-BSI BS EN 455LO-b-
19、9-ENGL 2000 I 1624669 082455b 247 m Page 3 EN 4551 O-6-9:1999 11.7 Spare parts strategy Error! Bookmark not defined . 12 Technical documentation requirements 19 12.1 Tender documentation . 19 12.2 Contract documentation 19 i 1.8 Special precautions 19 13 Applicable legislation, regulations, standard
20、s and further requirements . 19 13.1 Legislation and regulations . 19 13.3 Further requirements . 20 13.2 Standards 20 14 Evaluation criteria .-. 20 14.1 General 20 14.2 Technical criteria 20 15 Quality measures -. 21 15.1 General 21 15.3 Inspection requirements . 21 15.4 Non-conformity 21 16 Site f
21、actors -. 22 16.1 Access . 22 16.2 Facilities . 22 15.2 Approvals procedure . 21 16.3 Site specific requirements . 22 17 Verification of specified performance . - 23 17.1 General 23 17.2 Works tests . 23 17.3 Test during installation and commissioning 23 17.4 Technical conditions for trial run . 24
22、Bibliography -. 25 17.5 Functional and performance tests 24 OBSI 01-2000 STD-BSI BS EN 45510-b-?-ENCL 2000 = lb24bb9 0824557 183 9 Page 4 EN 45510-6-9:1999 Fore word This European Standard has been prepared by Technical Committee CEN/CLC JTFPE, Joint Task Force Power Engineering, the Secretariat of
23、which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2000, and conflicting national standards shall be withdrawn at the latest by April 2000. According to the CEN/CENELEC In
24、ternal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal, This standard takes the f
25、orm of a recommendation and is therefore entitled a “Guide”. This Guide for procurement has been prepared under mandates given to CEN and CENELEC by the European Commission and the European Free Trade Association. This Guide for procurement is a part of a series of Guides mandated to cover the procu
26、rement of power station plant and equipment in conformity with European Procurement Directives. The Guides are: EN 4551 O Guide for procurement of power station equipment Part 1: Common Clauses I l Spain, Sweden, Switzerland and the United Kingdom. I I Part 2-1: Part 2-2: Part 2-3: Part 2-4: Part 2-
27、5: Part 2-6: Part 2-7: Part 2-8: Part 2-9: Electrical equipment - Power transformers Electrical equipment - Uninterruptible power supplies Electrical equipment - Stationary batteries and chargers Electrical equipment - High power static converters Electrical equipment - Motors Electrical equipment -
28、 Generators Electrical equipment - Switchgear and control gear Electrical equipment - Power cables Electrical equipment - Cabling systems Part 3-1: Boilers - Water tube boilers Part 3-2: Boilers - Shell boilers Part 3-3: Boilers - Boilers with fluidized bed firing Part 4- 1 : Part 4-2: Part 4-3: Par
29、t 4-4: Part 4-5: Part 4-6: Part 4-7: Part 4-8: Part 4-9: Part 4- 1 O: I Boiler auxiliaries - Equipment for reduction of dust emissions Boiler auxiliaries - Gas-air, steam-air and gas-gas heaters Boiler auxiliaties - Draught plant Boiler auxiliaries - Fuel preparation equipment Boiler auxiliaries - C
30、oal handling and bulk storage plant Boiler auxiliaries - Flue gas desulphurization (De-S9,) plant Boiler auxiliaries - Ash handling plant Boiler auxiliaries - Dust handling plant Boiler auxiliaries - Sootblowers Boiler auxiliaries - Flue gas denitrification (De-N9,) plant Part 5-1: Turbines - Steam
31、turbines Part 5-2: Turbines - Gas turbines Patt 5-3: Turbines - Wind tu as appropriate, also appear in italics in the documents specific to particular equipment. In this Guide, words in bold type indicate that they have the meaning given in the definitions, clause 3. in this Guide, words and sentenc
32、es not in italics are specific to this Guide and refer to the particular equipment covered. QBSI 01-2000 STD*BSI BS EN 455LO-b-q-ENGL 2000 9 lb2qbb9 0824559 T5b E Page 6 EN 4551 0-6-911 999 i Scope This standard gives guidance on writing the technical specification for the procurement of main and au
33、xiliary cooling water systems for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the prep
34、aration of this Guide. This Guide covers: - pump intake screening plant (coarse and fine screens) and associated cleaning systems; - pressure filters; - pipework and valves: - penstock gates; - priming and venting equipment; - dewatering facilities; - surge suppression equipment; - cathodic protecti
35、on equipment; - chemical treatment. This Guide does not cover: - main cooling water pumps and associated auxiliaries; - auxiliary cooling water pumps; - condenser plant; - auxiliary plant heat exchangers; - cooling towers; - raw water treatment plant; - civil work. The equipment covered by this Guid
36、e is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prep
37、ared so that: - the equipment type and capacity interfaces correctly with other elements of the systems, such as cooling water pumps, condenser, etc.; - predicted performance is achieved; - ancillary equipment is properly sized; - reliability, availability and safety requirements are achieved; - pro
38、per consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.9. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchasers projec
39、t strategy. It does not cover: - any commercial, contractual or legal issues which are normally in separate parts of an enquiry; - any allocation of responsibilities which are determined by the contract. This Guide does not prescribe the arrangement of the documents in the enquiry. NOTE: As a compre
40、hensive European environmental policy is still under preparation, this Guide does not address the environmental implications of the equipment. OBSI 01-2000 STD.BSI BS EN 45510-6-9-ENGL 2000 = 1624bb9 08245b0 778 Page 7 EN 4551 0-6-9: 1999 2 Normative references This Guide for procurement incorporate
41、s by dated or undated reference, provisions from other publications. These normative references are cited in the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this Guide only
42、 when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN /SO 9001 EN IS0 9002 IEC 60050-91 Quality systems - Model for quality assurance in design, development, production, installation and servicing (IS0 9001:1994). Qua
43、lity systems - Model for quality assurance in production, installation and servicing (IS0 9002:1994). International electrotechnical vocabulary - Chapter 19 I: Dependability and quality of service. 3 Definitions For the purposes of this Guide, the following definitions apply: 3.7 Organizational term
44、s 3.7.1 purchaser: Recipient of a product and/or a senrice provided by a supplier. 3.7.2 supplier: Person or organization that provides a product and/or a service to the purchaser. 3.1.3 specification: Document stating technical requirements of the purchaser. It may form patt of an enquiry issued by
45、 a purchaser. 3.7.4 enquiry: Invitation to tender issued by a purchaser. It will normally include a specification together with the necessary con tractual and commercial conditions. 3.1.5 tender: Offer made by a tenderer in response to an enquiry. 3.1.6 tenderer: Person or organization submitting a
46、tender for the equipment in response to the enquiry. 3.1.7 site: Place to which the equipment is to be delivered or where work is to be done by the supplier, together with so much of the area surrounding as the supplier may, with the consent of the purchaser, use for the purposes of the contract. NO
47、TE: Further definitions of useful organizational terms may be found in ENIS08402 (see Bibliography). 3.2 Technical terms 3.2.1 main cooling water system: System that provides cooling water to the main steam turbine condensers. 3.2.2 auxiliary cooling water system: System that provides cooling water
48、to auxiliary plant heat exchangers. The water can be taken straight from the main cooling water system or can be provided by an intermediate recirculation system using “clean water“, .e. demineralized water, townwater, etc. which acts as an additional barrier to prevent contamination of the circuits
49、 to be cooled. 3.2.3 direct cooling water system: System that uses water taken directly from a natural source, .e. sea, estuary, river or lake and which returns the heated water to the original source immediately after use, at a point minimizing heat recirculation. 3.2.4 indirect cooling water system: System that continuously recirculates water through the system heat exchangers and uses cooling towers to cool the water prior to re-use. 3.2.5 coarse screens: Heavy duty wide mesh or vertical bar screens located at the inlet of the cooling water systems to prevent the pas
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