1、STDmBSI BS EN 45510-b-5-ENGL 2000 Lb24bb7 0829374 277 BRITISH STANDARD _ Guide for procurement of power station equipment - Part 6-5: Turbine auxiliaries - Dry cooling systems The European Standard EN 4551W51999 has the status of a British Standard ICs 23.120; 27.040; 2i.100 3s EN i55 10-6-5:ZOOO NO
2、 COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW STDmBSI BS EN 45SLO-b-S-ENGL 2000 W Lb24bbS 0824395 125 W direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 January 2000 fund. No. O BSI 01-2000
3、BS EN 45510-6-5:2000 Date Comments National foreword This British Standard is the English language version of EN 45510-6-51999. The UK participation in its preparation was entrusted to Technical Committee EIJ20, Power engineering steering committee, which has the responsibility to: - aid enquirers t
4、o understand the text; - present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed - monitor related intemationai and European developments and promulgate them in the UK A list of organizations represented on this c
5、ommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitJed “International Standards Correspondence Index”, or b
6、y using the “Find” facility of the BSI Standards Elecixonic Catalogue. A British Standard 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 imm
7、unity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 24, an inside back cover and a back cover. The BSI copynght notice displayed in this document indicates when the document was last issued. ISBN O 580 35360 5 EUR
8、OPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 455104-5 October 1999 ICs English version Guide for procurement of power station equipment - Part 6-5: Turbine auxiliaries - Dry cooling systems Guide pour lacquisition dquipements destins aux centrales de production dlectricit - Partie 6-5: Auxiliai
9、res de turbine - Arorfrigrants secs et arocondenseurs Leitfaden fr die Beschaffung von Ausrstungen fr Kraftwerke - Teil 6-5: Turbinenhilfseinrichtungen - Trockenkhlanlagen This European Standard was approved by CENICENELEC on 1 October 1999. CENICENELEC members are bound to comply with the CENICENEL
10、EC Internal Regulations which stipulate the conditions for giving th6 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 CEN
11、ICENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by traislation under the responsibility of a CENICENELEC member into its own language and notified to the Central Secretariat has the same Staus as the official v
12、ersions. CENICENELEC members are the national 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 Unit
13、ed Kingdom. CEN Central Secretariat: rue de Stassart, 36 8-1050 Brussels CENELEC Central Secretariat: rue de Stassart, 35 8-1050 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-
14、641999 E - STD.BSI BS EN 455LO-b-5-ENGL 2000 lb29bb 0829377 TT8 Page 2 EN 4551 0-6-511 999 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
15、 purchaser 9 4.2 Site location . 9 4.3 Equipment task 9 4.4 Equipment to be purchased . 9 4.5 Control and instrumentation 10 4.6 Electrical supplies and other services 10 4.7 Other interfaces 10 4.8 Project programme 10 5 Extent of supply 10 6 Terminal points . Il 7 Operational requirements 11 7.1 O
16、perating environment 11 7.2 Manning levels . 12 7.3 Normal operation 12 7.4 Operating hours . 12 7.5 Start-up and shut-down . 12 7.6 Abnormal conditions 12 7.7 Further operational requirements . 12 8 Life expectancy . 13 8.1 Design life 13 8.2 Components requiring periodic maintenance . 13 9 Perform
17、ance requirements 13 9.1 Duty 13 9.2 Performance 13 9.3 Equipment margins 14 9.4 Availability 14 9.5 Levels of component redundancy . 14 1ODesign and fabrication . ._. . 14 10.1 Specific equipment features . 14 10.3 Material selection . 16 10.4 Safety . 16 10.6 Fabrication methods 16 1 I Maintenance
18、 requirements 17 11.1 Planned maintenance . 17 11.2 Personnel safety 17 11.3 Requirements for access . 17 11.4 Lifting requirements . 17 11.5 Special tools . 17 4.9 Equipment identification systems . 10 9.6 Further performance requirements . 14 10.2 Design justification . 16 10.5 Interchangeability
19、. 16 OBSI 01-2000 Page 3 EN 4551 0-6-53 999 11.6 Test equipment 17 11.7 Spare parts strategy . 17 11.8 Special precautions .“. . 18 12Technical documentation requirements 18 12.1 Tender documentation . . 18 12.2 Contract documentation . .-. 18 13Applicable legislation, regulations, standards and fur
20、ther requirements . 18 13.1 Legislation and regulations . . 18 13.2 Standards . 18 13.3 Further requirements . 19 14Evaluation criteria . 19 14.1 General 19 15Quality measures - . 20 15.1 General 20 15.2 Approvals procedure 20 15.3 Inspection requirements ._ . 20 15.4 Non-conformity . 20 16Site fact
21、ors 20 16.1 Access . 20 16.2 Facilities . 20 16.3 Site specific requirements . ._. . 21 17Verification of specified performance . - 21 17.1 General 21 17.2 Works tests 21 17.3 Test during installation and commissioning . ._. 22 17.4 Technical conditions for triai run . 22 17.5 Functional and perform
22、ance tests . ._. 22 Bibliography ,. . . - . 24 14.2 Technical criteria 19 OBSI 01-2000 STD-BSI BS EN 955LO-b-5-ENGL 2000 Lb29bb7 0829377 870 Page 4 EN 4551 0-6-511 999 Fore word This European Standard has been prepared by Technical Committee CENKLC JTFPE “Joint Task force Power Engineering“, the Sec
23、retariat of 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 CE
24、N/CENELEC Internal 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, Norway, Portugal, Spain, Swede
25、n, Switzerland and the United Kingdom. This standard takes the form 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 procure
26、ment is a part of a series of Guides mandated to cover the procurement of power station plant and equipment in conformity with European Procurement Directives. The Guides are: EN 45510 Part I: Part 2- 1: Part 2-2: Part 2-3: Part 2-4: Part 2-5: Part 2-6: Part 2-7: Part 2-8: Part 2-9: Part 3-1: Part 3
27、-2: Part 3-3: Part 4-1: Part 4-2: Part 4-3: Part 4-4: Part 4-5: Part 4-6: Part 4- 7: Part 4-8: Part 4-9: Part 4- I O: Part 5-1: Part 5-2: Part 5-3: Part 5-4: Part 6-1: Part 6-2: Patt 6-3: Part 6-4: Part 6-5: Part 6-6: Guide for procurement of power station equipment Common Clauses Electrical equipme
28、nt - Power transformers Electrical equipment - Uninterruptible power supplies Electrical equipment - Stationary batteries and chargers Electrical equipment - High power static converters Electrical equipment - Motors Electrical equipment - Generators Electrical equipment - Switchgear and control gea
29、r Electrical equipment - Power cables Electrical equipment - Cabling systems Boilers - Water tube boilers Boilers - Shell boilers Boilers - Boilers with fluidized bed firing Boiler auxiliaries - Equipment for reduction of dust emissions Boiler auxiliaries - Gas-air, steam-air and gas-gas heaters Boi
30、ler auxiliaries - Draught plant Boiler auxiliaries - Fuel preparation equipment Boiler auxiliaries - Coal handling and bulk storage plant Boiler auxiliaries - Flue gas desulfurization (De-S - heat exchangers; - supporting frame and footbridges; - winter operating equipment (e.9. louvres, shutters);
31、- fan and fan ancillaries; - noise attenuation equipment; - pipework and valves; - exhaust steam duct; - distribution ducts; - air extraction system; - condensate system. This Guide does not cover: - water cooled condensers; - cooling water pumps and associated auxiliaries; - chemical and mechanical
32、 water treatment; - civil work. The equipment covered by this Guide 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 indica
33、tes to potential purchasers how their specification should be prepared so that: - the equipment type and capacity interfaces correctly with other elements of the systems such as - predicted performance is achieved; - ancillary equipment is properly sized; - reliabilityJ availability and safety requi
34、rements are achieved; - proper consideration is given to the evaluation process and the quality measures to be applied. condenser, cooling water supply and civil work; This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any giv
35、en contract which is normally decided on the basis of the purchasers project 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 p
36、rescribe the arrangement of the documents in the enquiry. NOTE: As a comprehensive 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-b-5-ENGL 2000 Zb24bb9 0824402 195 Page 7 EN 4551
37、0-6-511 999 2 Normative references This Guide for procurement incorporates 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 amendme
38、nts to or revisions of any of these publications apply to this Guide only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN IS0 9001 EN IS0 9002 lEC 60050- 19 1 Quality systems - Model for quality assurance in desi
39、gn, development, production, installation and servicing (IS0 9001: 1994). Quality systems - Model for quality assurance in production, installation and servicing (IS0 9002: 1994). International electrotechnical vocabulary. - Chapter 19 1 : Dependability and quality of service 3 Definitions For the p
40、urposes of this Guide, the following definitions apply: 3.7 Organizational terms 3.1.1 purchaser: Recipient of a product and/or a service provided by a supplier. 3.1.2 supplier: Person or organization that provides a product and/or a service to the purchaser. 3.1.3 specification: Document stating te
41、chnical requirements of the purchaser. It may form patt of an enquiry issued by a purchaser. 3.i.4 enquiry: Invitation to tender issued by a purchaser. it will normally include a specification together with the necessary contractual and commercial conditions. 3.1.5 tender: Offer made by a tenderer i
42、n response to an enquiry. 3.1.6 tenderer: Person or organization submitting a 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 ma
43、y, with the consent of the purchaser, use for the purposes of the contract. NOTE: Further definitions of useful organisational terms may be found in EN IS0 8402 (see Bibliography). 3.2 Technical terms 3.2.1 dry cooling tower: Cooling tower in which the heat exchange from water to air is achieved by
44、convection so that there are no evaporative losses. 3.2.2 aircooled condenser (ACC): Aircooled heat exchangers to condense the turbine exhaust steam. 3.2.3 natural draught: Where the air circulation is generated by a density difference between the cold air outside the dry cooling system and the hot
45、air inside. 3.2.4 mechanical draught: Where the air circulation is generated by fans. 3.2.5 forced draught: Mechanical draught in which the fans are located between the air inlet and the heat exchangers. 3.2.6 induced draught: Mechanical draught in which the fans are located between the heat exchang
46、ers and the air outlet. 3.2.7 heat exchanger: Assembly of ducts, for the heat exchange. The cooling water flows inside the ducts and the air flows outside. 3.2.8 cooling water: Warm water which enters the cooling tower to be re-cooled. 3.2.9 louvres, shutters: Devices installed in a tower wall to co
47、ntrol the air flowrate into the tower. OBSI 01-2000 _ STD-BSI BS EN 4551O-b-5-ENGL 2000 lb24bb9 0824403 O21 Page 8 EN 4551 O-6-5:1999 3.2.10 cell: Smallest subdivision of a dry cooling system bounded by exterior walls and partition walls which can function as an independent unit as regards air and w
48、ater (steam foraircooled condensers) flow. 3.2.1 1 heat load (thermal load): Heat rejected from the dry cooling system to the atmosphere. 3.2.12 dry bulb temperature: Air temperature indicated by a thermometer with a dry bulb protected from any radiation effect. 3.2.13 cooling range: Difference betw
49、een the hot water temperature and the recooled water temperature. 3.2.14 inlet temperature difference: Difference between the cooling water inlet temperature (the exhaust steam temperature for aircooled condensers) and the inlet air dry bulb temperature. 3.2.15 exhaust steam duct: Ducts to lead the exhaust steam from the turbine to the aircooled condenser. 3.2.16 distribution ducts: Ducts on top of the aircooled condenser to distribute the steam to the condenser bundles. 3.2.1 7 A-frames: Roof-type frames accommodating the heat exchanger bundles. 3
