1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 45510-6-2:1998 The
2、European Standard EN 45510-6-2:1998 has the status of a British Standard ICS 27.040; 27.100 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Guide for procurement of power station equipment Part 6-2: Turbine auxiliaries Feedwater heatersThis British Standard, having been prepar
3、ed under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1998 BSI 1998 ISBN 0 580 29219 3 BS EN 45510-6-2:1998 Amendments issued since publication Amd. No. Date Text affected National foreword This British Standa
4、rd is the English language version of EN 45510-6-2:1998. The UK participation in its preparation was entrusted to Technical Committee E/-/20, Power engineering steering committee, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any
5、 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. Cross-references Th
6、e British 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
7、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 immunity from legal obligations. Summary of pages This document comprises a
8、front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover.CEN/CENELEC CEN Central Secretariat rue de Stassart 36, B-1050 Brussels CENELEC Central Secretariat rue de Stassart 35, B-1050 Brussels 1998 CEN/CENELEC All rights of exploitation in any form and by any means reser
9、ved worldwide for CEN national Members and CENELEC Members. Ref. No. EN 45510-6-2:1998 E EUROPEAN STANDARD EN 45510-6-2 NORME EUROPE ENNE EUROPA ISCHE NORM January 1998 ICS 27.040; 27.100 Descriptors: Electric power stations, turbines, water heaters, purchase, user supplier relations, invitation of
10、tenders, specifications, technical writing English version Guide for procurement of power station equipment Part 6-2: Turbine auxiliaries Feedwater heaters Guide pour lacquisition de quipements destine s aux centrales de production de lectricite Partie 6-2: Auxiliaires de turbine Re chauffeurs deau
11、dalimentation Leitfaden fu r die Beschaffung von Ausru stungen fu r Kraftwerke Teil 6-2: Turbinenhilfseinrichtungen Speisewasservorwa rmer This European Standard was approved by CEN/CENELEC on 11 December 1997. CEN/CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which s
12、tipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN/CENELEC member. This European
13、 Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN/CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN/CENELEC members
14、are the national standards bodies and national electrotechnical committees, respectively, of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 45510-
15、6-2:1998 BSI 1998 Foreword This standard takes the form of a recommendation and is therefore entitled a “Guide”. This Guide for procurement has been prepared by the CEN/CENELEC Joint Task Force Power Engineering (JTFPE) of which the secretariat is held by BSI. This European Standard shall be given t
16、he status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 1998, and conflicting national standards shall be withdrawn at the latest by July 1998. This Guide for procurement has been prepared under mandates given to CEN and CENELEC by the Eu
17、ropean Commission and the European Free Trade Association. This Guide for procurement 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 Guide for procurement of power sta
18、tion equipment Part 1: Common Clauses Part 2-1: Electrical equipment Power transformers Part 2-2: Electrical equipment Uninterruptible power supplies Part 2-3: Electrical equipment Stationary batteries and chargers Part 2-4: Electrical equipment High power static convertors Part 2-5: Electrical equi
19、pment Motors Part 2-6: Electrical equipment Generators Part 2-7: Electrical equipment Switchgear and control gear Part 2-8: Electrical equipment Power cables Part 2-9: Electrical equipment Cabling systems Part 3-1: Boilers Water tube boilers Part 3-2: Boilers Shell boilers Part 3-3: Boilers Boilers
20、with fluidized bed firing Part 4-1: Boiler auxiliaries Equipment for reduction of dust emissions Part 4-2: Boiler auxiliaries Gas-air, steam-air and gas-gas heaters Part 4-3: Boiler auxiliaries Draught plant Part 4-4: Boiler auxiliaries Fuel preparation equipment Part 4-5: Boiler auxiliaries Coal ha
21、ndling and bulk storage plant Part 4-6: Boiler auxiliaries Flue gas desulphurisation (De-SO x ) plant Part 4-7: Boiler auxiliaries Ash handling plant Part 4-8: Boiler auxiliaries Dust handling plant Part 4-9: Boiler auxiliaries Sootblowers Part 4-10: Boiler auxiliaries Flue gas denitrification (De-N
22、O x ) plant Part 5-1: Turbines Steam turbines Part 5-2: Turbines Gas turbines Part 5-3: Turbines Wind turbines Part 5-4: Turbines Hydraulic turbines, storage pumps and pump-turbines Part 6-1: Turbine auxiliaries Deaerators Part 6-2: Turbine auxiliaries Feedwater heaters Part 6-3: Turbine auxiliaries
23、 Condenser plant Part 6-4: Turbine auxiliaries Pumps Part 6-5: Turbine auxiliaries Dry cooling systems Part 6-6: Turbine auxiliaries Wet and wet/dry cooling towers Part 6-7: Turbine auxiliaries Moisture separator reheaters Part 6-8: Turbine auxiliaries Cranes Part 6-9: Turbine auxiliaries Cooling wa
24、ter systems Part 7-1:Pipework and valves High pressure piping systems Part 7-2: Pipework and valves Boiler and high pressure piping valves Part 8-1: Control and instrumentation EN 45510 Part 1 contains those clauses common to all the above Guides giving the provisions of a non equipment specific nat
25、ure for use in the procurement of power station plants. EN 45510 is the responsibility of JTFPE. The so called “common clauses”, as appropriate, also appear in italics in the documents specific to particular equipment. Where paragraphs of “common clauses” are omitted, each paragraph omitted is indic
26、ated by the symbol *. In this Guide, words in bold type indicate that they have the meaning given in the definitions, clause 3. In this Guide, words and sentences not in italics are specific to this Guide and refer to the particular equipment covered. According to the CEN/CENELEC Internal Regulation
27、s, 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, Sweden, Switzerland and the United
28、 Kingdom.Page 3 EN 45510-6-2:1998 BSI 1998 Contents Page Foreword 2 1 Scope 4 2 Normative references 4 3 Definitions 5 3.1 Organizational terms 5 3.2 Technical terms 5 3.3 General terms 6 4 Brief overall project description 6 4.1 Role and organization of purchaser 6 4.2 Site location 6 4.3 Equipment
29、 task 6 4.4 Equipment to be purchased 7 4.5 Control and instrumentation 7 4.6 Electrical supplies and other services 7 4.7 Other interfaces 7 4.8 Project programme 7 4.9 Equipment identification systems 7 5 Extent of supply 7 6 Terminal points 8 7 Operational requirements 8 7.1 Operating environment
30、 8 7.2 Manning levels 8 7.3 Normal operation 8 7.4 Operating hours 9 7.5 Start-up and shut-down 9 7.6 Abnormal conditions 9 7.7 Further operational requirements 9 8 Life expectancy 9 8.1 Design life 9 8.2 Components requiring periodic maintenance 9 9 Performance 9 9.1 Duty 9 9.2 Performance 10 9.3 E
31、quipment margins 10 9.4 Availability 10 9.5 Levels of component redundancy 10 9.6 Further performance requirements 10 10 Design and fabrication 10 10.1 Specific equipment features 10 Page 10.2 Design justification 11 10.3 Material selection 11 10.4 Safety 11 10.5 Interchangeability 11 10.6 Fabricati
32、on methods 11 11 Maintenance requirements 12 11.1 Planned maintenance 12 11.2 Personnel safety 12 11.3 Requirements for access 12 11.4 Lifting requirements 12 11.5 Special tools 12 11.6 Test equipment 12 11.7 Spare parts strategy 12 11.8 Special precautions 12 12 Technical documentation requirements
33、 12 12.1 Tender documentation 12 12.2 Contract documentation 13 13 Applicable legislation, regulations, standards and further requirements 13 13.1 Legislation and regulations 13 13.2 Standards 13 13.3 Further requirements 13 14 Evaluation criteria 13 14.1 General 13 14.2 Technical criteria 14 15 Qua
34、lity measures 14 15.1 General 14 15.2 Approvals procedure 14 15.3 Inspection requirements 14 15.4 Non-conformity 14 16 Site factors 14 16.1 Access 14 16.2 Facilities 14 16.3 Site specific requirements 15 17 Verification of specified performance 15 17.1 General 15 17.2 Works tests 15 17.3 Tests durin
35、g installation and commissioning 15 17.4 Technical conditions for trial run 15 17.5 Functional and performance tests 15 Annex A (informative) Bibliography 17Page 4 EN 45510-6-2:1998 BSI 1998 1 Scope This standard gives guidance on writing the technical specification for the procurement of feedwater
36、heaters 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 preparation of this Guide.
37、 This Guide covers surface feedwater heaters installed in power plants and used to heat the main condensate and feedwater to be supplied to the steam producing system. Shell and tube type feedwater heaters are included in this Guide, while direct contact feedwater heaters are covered by a separate g
38、uide (see EN 455106-1 “Guide for procurement of power station equipment Part 6-1: Turbine auxiliaries Deaerators”). Feedwater heaters may or may not have a separate or internal drain cooler or desuperheater. The feedwater heaters heating the main condensate are low pressure (LP) and those heating th
39、e feedwater are high pressure (HP) feedwater heaters. Depending on their installation and design they may belong to the following types: horizontal type; horizontal in the condenser exhaust neck; vertical water box up; vertical water box down; feedwater heaters with condensing zone only; two zone fe
40、edwater heaters (condensing and drain cooling or condensing and desuperheating zone); three zone feedwater heaters (desuperheating, condensing and drain cooling zones); duplex LP heaters; header type feedwater heaters; tube sheet type feedwater heaters; separate drain coolers; separate desuperheater
41、s. This Guide does not cover feedwater heating systems using waste heat taken from the exhaust of gas turbines or from the exhaust of a boiler or gland steam; generally, it only applies to systems which use extraction steam. The equipment covered by this Guide is defined by its function rather than
42、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 prepared so that: the equipment type and capa
43、city interfaces correctly with other elements of the systems, such as other heaters, deaerator, condenser, steam generator, etc.; predicted performance is achieved; ancillary equipment is properly sized; reliability, availability and safety requirements are achieved; proper consideration is given to
44、 the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchasers project strategy. It does not cover
45、: 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 comprehensive European environmental pol
46、icy is still under preparation, this Guide does not address the environmental implications of the equipment. 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 place
47、s 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 when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to appli
48、es. EN ISO 9001, Quality systems Model for quality assurance in design, development, production, installation and servicing (ISO 9001:1994). EN ISO 9002, Quality systems Model for quality assurance in production, installation and servicing (ISO 9002:1994). IEC 50 (191), International electrotechnica
49、l vocabulary Chapter 191: Dependability and quality of service.Page 5 EN 45510-6-2:1998 BSI 1998 3 Definitions For the purposes of this Guide, the following definitions apply: 3.1 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
