Guide for procurement of power station equipment -- Part 4-4: Boiler auxiliaries - Fuel preparation equipment

CEN/CLC JTFPE converted into CEN/CLC TC 2 * CEN lead

Leitfaden für Beschaffung von Ausrüstungen für Kraftwerke -- Teil 4-4: Nebenanlagen - Brennstoffaufbereitungsanlagen

Die vorliegende Beschaffungsrichtlinie gibt Hilfestellung bei der Erstellung dertechnischen Spezifikation für die Beschaffung von Brennstoffbehandlungsanlagen für feste, flüssige und gasförmige Brennstoffe im Zusammenhang mit Dampferzeugern und Rauchgasreinigungsanlagen in Kraftwerken. Eingeschlossen sind: Zuteiler; Mahlanlagen/Mühlen; Brecher; Sichter; Rohrleitungen; Pumpen; Vorwärmer; Filter; Klappen, Ventile.

Guide pour l'acquisition d'équipements destinés aux centrales de production d'électricité -- Partie 4-4: Auxiliaires de chaudière - Systèmes de préparation du combustible

La présente norme donne des indications pour la rédaction des spécifications techniques concernant l'acquisition de systèmes de préparation des combustibles solides, liquides et gazeux associées aux générateurs de vapeur et aux systèmes de traitement des fumées dans les centrales de production d'électricité. Il s'agit de: chargeurs; pulvérisateurs, broyeurs et concasseurs; sélecteurs; canalisations; pompes; réchauffeurs; filtres; registres; vannes.

Guide for procurement of power station equipment - Part 4-4: Boiler auxiliaries - Fuel preparation equipment

General Information

Status
Published
Publication Date
31-Jan-2003
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Feb-2003
Due Date
01-Feb-2003
Completion Date
01-Feb-2003

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SIST EN 45510-4-4:2003
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Guide for procurement of power station equipment - Part 4-4: Boiler auxiliaries - Fuel preparation equipmentLeitfaden für Beschaffung von Ausrüstungen für Kraftwerke -- Teil 4-4: Nebenanlagen - BrennstoffaufbereitungsanlagenGuide pour l'acquisition d'équipements destinés aux centrales de production d'électricité -- Partie 4-4: Auxiliaires de chaudière - Systèmes de préparation du combustibleGuide for procurement of power station equipment -- Part 4-4: Boiler auxiliaries - Fuel preparation equipment27.100Elektrarne na splošnoPower stations in general27.060.30Grelniki vode in prenosniki toploteBoilers and heat exchangersICS:Ta slovenski standard je istoveten z:EN 45510-4-4:2002SIST EN 45510-4-4:2003en01-februar-2003SIST EN 45510-4-4:2003SLOVENSKI

STANDARD
SIST EN 45510-4-4:2003

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 45510-4-4August 2002ICS 27.040; 27.100English versionGuide for procurement of power station equipment - Part 4-4:Boiler auxiliaries - Fuel preparation equipmentGuide pour l'acquisition d'équipements destinés auxcentrales de production d'électricité - Partie 4-4: Auxiliairesde chaudière - Systèmes de préparation du combustibleLeitfaden für die Beschaffung von Ausrüstungen fürKraftwerke - Teil 4-4: Nebenanlagen -BrennstoffaufbereitungsanlagenThis European Standard was approved by CEN and CENELEC on 3 July 2001.CEN and CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givingthis European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerningsuch national standards may be obtained on application to the CEN Management Centre or to any CEN or CENELEC member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN or CENELEC member into its own language and notified to the CEN Management Centre has the samestatus as the official versions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden,Switzerland and United Kingdom.CEN Management Centre:CENELEC Central Secretariat:rue de Stassart, 36

B-1050 Brusselsrue de Stassart, 35

B-1050 Brussels© 2002 CEN/CENELECAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members and for CENELECMembers.Ref. No. EN 45510-4-4:2002 ESIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)2ContentspageForeword............................................................................................................................................................41Scope......................................................................................................................................................62Normative references............................................................................................................................63Terms and definitions............................................................................................................................73.1Organisational terms.........................................................................................................................73.2Technical terms................................................................................................................................73.3General terms...................................................................................................................................84Brief overall project description...........................................................................................................94.1Role and organisation of purchaser..................................................................................................94.2Site location....................................................................................................................................104.3Equipment task...............................................................................................................................104.4Equipment to be purchased............................................................................................................104.5Control and instrumentation............................................................................................................114.6Electrical supplies and other services.............................................................................................114.7Other interfaces..............................................................................................................................114.8Project programme.........................................................................................................................114.9Equipment identification systems...................................................................................................115Extent of supply...................................................................................................................................116Terminal points....................................................................................................................................127Operational requirements...................................................................................................................127.1Operating environment...................................................................................................................127.2Manning levels................................................................................................................................127.3Normal operation............................................................................................................................137.4Operating hours..............................................................................................................................137.5Start-up and shut-down...................................................................................................................137.6Abnormal conditions.......................................................................................................................137.7Further operational requirements...................................................................................................138Life expectancy....................................................................................................................................148.1Design life.......................................................................................................................................148.2Components requiring periodic maintenance.................................................................................149Performance requirements.................................................................................................................149.1Duty.................................................................................................................................................149.2Performance...................................................................................................................................159.3Equipment margins.........................................................................................................................159.4Availability.......................................................................................................................................159.5Levels of component redundancy...................................................................................................159.6Further performance requirements.................................................................................................1610Design and fabrication.....................................................................................................................1610.1Specific equipment features...........................................................................................................1610.2Design justification..........................................................................................................................1910.3Material selection............................................................................................................................1910.4Safety..............................................................................................................................................1910.5Interchangeability............................................................................................................................1910.6Fabrication methods.......................................................................................................................1911Maintenance requirements..............................................................................................................1911.1Planned maintenance.....................................................................................................................1911.2Personnel safety.............................................................................................................................1911.3Requirements for access................................................................................................................2011.4Lifting requirements........................................................................................................................2011.5Special tools....................................................................................................................................2011.6Test equipment...............................................................................................................................20SIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)311.7Spare parts strategy........................................................................................................................2011.8Special precautions.........................................................................................................................2012Technical documentation requirements........................................................................................2012.1Tender documentation....................................................................................................................2012.2Contract documentation..................................................................................................................2113Applicable legislation, regulations, standards and further requirements..................................2113.1Legislation and regulations.............................................................................................................2113.2Standards........................................................................................................................................2113.3Further requirements......................................................................................................................2114Evaluation criteria............................................................................................................................2114.1General...........................................................................................................................................2114.2Technical criteria.............................................................................................................................2215Quality measures..............................................................................................................................2215.1General...........................................................................................................................................2215.2Approvals procedure.......................................................................................................................2315.3Inspection requirements.................................................................................................................2315.4Non-conformity...............................................................................................................................2316Site factors........................................................................................................................................2316.1Access............................................................................................................................................2316.2Facilities..........................................................................................................................................2316.3Site specific requirements...............................................................................................................2417Verification of specified performance............................................................................................2417.1General...........................................................................................................................................2417.2Works tests.....................................................................................................................................2417.3Test during installation and commissioning....................................................................................2417.4Technical conditions for trial run.....................................................................................................2517.5Functional and performance tests..................................................................................................25Bibliography....................................................................................................................................................26SIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)4ForewordThis document (EN 45510-4-4:2002) has been prepared by Technical Committee CEN/CENELEC “JointTask Force Power Engineering”, the secretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by February 2003, and conflicting national standards shall be withdrawnat the latest by February 2003.This standard takes the form of a recommendation and is therefore entitled a “Guide”.This Guide for procurement is a part of a series of Guides mandated to cover the procurement of powerstation plant and equipment in conformity with European Procurement Directives. The Guides are:EN 45510Guide for procurement of power station equipmentPart 1:Common ClausesPart 2-1:Electrical equipment - Power transformersPart 2-2:Electrical equipment - Uninterruptible power suppliesPart 2-3:Electrical equipment - Stationary batteries and chargersPart 2-4:Electrical equipment - High power static convertorsPart 2-5:Electrical equipment - MotorsPart 2-6:Electrical equipment - GeneratorsPart 2-7:Electrical equipment - Switchgear and control gearPart 2-8:Electrical equipment - Power cablesPart 2-9:Electrical equipment - Cabling systemsPart 3-1:Boilers - Water tube boilersPart 3-2:Boilers - Shell boilersPart 3-3:Boilers - Boilers with fluidized bed firingPart 4-1:Boiler auxiliaries - Equipment for reduction of dust emissionsPart 4-2:Boiler auxiliaries - Gas-air, steam-air and gas-gas heatersPart 4-3:Boiler auxiliaries - Draught plantPart 4-4:Boiler auxiliaries - Fuel preparation equipmentPart 4-5:Boiler auxiliaries - Coal handling and bulk storage plantPart 4-6:Boiler auxiliaries - Flue gas desulphurisation (De-SOx) plantPart 4-7:Boiler auxiliaries - Ash handling plantPart 4-8:Boiler auxiliaries - Dust handling plantPart 4-9:Boiler auxiliaries - SootblowersPart 4-10:Boiler auxiliaries - Flue gas denitrification (De-NOx) plantPart 5-1:Turbines - Steam turbinesPart 5-2:Turbines - Gas turbinesPart 5-3:Turbines - Wind turbinesPart 5-4:Turbines - Hydraulic turbines, storage pumps and pump-turbinesPart 6-1:Turbine auxiliaries - DeaeratorsPart 6-2:Turbine auxiliaries - Feedwater heatersPart 6-3:Turbine auxiliaries - Condenser plantPart 6-4:Turbine auxiliaries - PumpsPart 6-5:Turbine auxiliaries - Dry cooling systemsPart 6-6:Turbine auxiliaries - Wet and wet/dry cooling towersPart 6-7:Turbine auxiliaries - Moisture separator reheatersPart 6-8:Turbine auxiliaries - CranesPart 6-9:Turbine auxiliaries - Cooling water systemsPart 7-1:Pipework and valves - High pressure piping systemsPart 7-2:Pipework and valves - Boiler and high pressure piping valvesPart 8-1:Control and instrumentationSIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)5EN 45510 part 1 contains those clauses common to all the above Guides giving the provisions of a nonequipment specific nature for use in the procurement of power station plant. EN 45510 is the responsibility ofJTFPE. The so called "common clauses", as appropriate, also appear in italics in the documents specific toparticular 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 sentences not in italics are specific to this Guide and refer to the particularequipment covered.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and the United Kingdom.According to the CEN/CENELEC Internal Regulations, the national electrotechnical committees of thefollowing countries are bound to implement this European Standard: Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.SIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)61 ScopeThis European Standard gives guidance on writing the technical specification for the procurement of fuelpreparation plant for solid, liquid or gaseous fuels associated with steam generating plant, for use inelectricity generating stations (power stations). This Guide for procurement is not applicable to equipment foruse in the nuclear reactor plant area of nuclear power stations. Other possible applications of suchequipment have not been considered in the preparation of this Guide.This Guide covers:-coal feeders;-pulverizers/mills;-classifiers;-pipework for pf, oil and gas;-oil pumps;-oil heaters;-oil filters;-shut-off dampers;-oil valves.The equipment covered by this Guide is defined by its function rather than design type. Therefore, theguidance to the specification is stated in performance terms rather than being specified by a detaileddescription of the equipment to be supplied.This Guide indicates 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 thefuel handling systems and the boiler;-predicted performance is achieved;-ancillary equipment is properly sized;-reliability, availability and safety requirements are achieved;-proper consideration is given to 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 extentof supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. Itdoes 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 comprehensive European environmental policy is still under preparation, this Guide does not address theenvironmental implications of the equipment.2 Normative referencesThis 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 listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis Guide only when incorporated in it by amendment or revision. For undated references, the latest editionof the publication referred to applies (including amendments).EN ISO 9001, Quality management systems - Requirements (ISO 9001:2000).IEC 60050-191, International electrotechnical vocabulary - Chapter 191: Dependability and quality of service.SIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)73 Terms and definitionsFor the purposes of this Guide, the following terms and definitions apply.3.1 Organisational terms3.1.1purchaserrecipient of a product and/or a service provided by a supplier3.1.2supplierperson or organisation that provides a product and/or a service to the purchaser3.1.3specificationdocument stating technical requirements of the purchaser. It may form part of an enquiry issued by apurchaser3.1.4enquiryinvitation to tender issued by a purchaser. It will normally include a specification together with thenecessary contractual and commercial conditions3.1.5tenderoffer made by a tenderer in response to an enquiry3.1.6tendererperson or organisation submitting a tender for the equipment in response to the enquiry3.1.7siteplace to which the equipment is to be delivered or where work is to be done by the supplier, together withso much of the area surrounding as the supplier may, with the consent of the purchaser, use for thepurposes of the contractNOTE

Further definitions of useful organisational terms can be found in EN ISO 9000 (see Bibliography).3.2 Technical terms3.2.1fuel preparation plantequipment comprising, for coal: coal feeders, mills, pipework, etc.; for oil: oil pumps, oil heaters,pipework, etc.; for gas: pressure reducing systems, pipework, etc., which together form a system to prepareand convey fuel to the burners at the conditions required for efficient combustion3.2.2coal feederdevice for supplying mills with a continuous flow of coal, capable of modulating flow rate according to theboiler demandSIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)83.2.3mill/pulverizermachine for reducing the particle size of the coal to that required for efficient combustion in a pulverized coalboiler. Two main types are used: tube ball mills (having a horizontal rotating cylinder with internal lifting barsand containing balls) and rotating table mills (having captive rollers or free balls)3.2.4classifierdevice which regulates the fineness of coal leaving the mills3.2.5pipeworkconduits through which pulverized fuel, oil or gas are conveyed to the burners. When conveying abrasivematerial parts or the whole may be lined with wear resisting material3.2.6oil pumpmachine for conveying fuel-oil from storage tank to burner3.2.7oil heaterheat exchanger for increasing the temperature of fuel-oil in order to reduce its viscosity to that required forefficient atomization3.2.8shut-off damper/valvedevice installed in a pipe to isolate the mill from the burners. Its effectiveness is defined in terms of theleakage flow when fully closed3.2.9oil filtersdevices for removing solid particles in fuel-oil whose presence would block oil burner jets3.2.10turndownratio of continuous maximum operating condition to continuous minimum operating condition, forexample a turndown ratio of 4:1 means that the mill should be capable of operating from 100 % down to25 % of the flow rate at the continuous maximum operating condition3.2.11continuous maximum operating conditionmaximum condition at which the equipment may be operated for a period not exceeding the specifieddesign life. This is the operating condition under which the performance tests are usually conducted3.3 General terms3.3.1equipmentplant, component, system and/or associated service to be provided in response to the enquiry3.3.2conformitySIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)9fulfilment of specified requirements by a product, process or service3.3.3performanceobligations verified by specified tests3.3.4operating periodtime between planned outages or maintenance periods during which the equipment is in operation and/ordoes not restrict operational requirements of the power station3.3.5life expectancytime period over which the equipment might be expected to operate with planned maintenance but withoutreplacement of a significant component, for example a mill gearbox is a significant component3.3.6design lifeoperating hours of the equipment on which design calculations are based3.3.7acceptabilitycompliance with criteria defined by the purchaser for assessing the suitability of equipment3.3.8equipment marginsallowance for design, fabrication or operating contingency defined in the specification. These are separateto those normally included by the supplier for his own purposes3.3.9proven equipmentequipment which may be demonstrated to be similar to that offered and has operated for a sufficient time tohave demonstrated performance and availability3.3.10availabilityas defined in IEC 60050-1913.3.11reliabilityas defined in IEC 60050-1913.3.12maintainabilityas defined in IEC 60050-1914 Brief overall project description4.1 Role and organisation of purchaserThe enquiry should define the purchaser’s role in the project, including whether the purchaser will assumeresponsibility for the planning and technical coordination of the project, or whether other organisations will beSIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)10appointed to carry out all or part of this function. The enquiry should define all organisational interfaces andthe procedures to be employed for managing the contract and the site.4.2 Site locationThe specification should describe the geographical location of the site which may include surveying points,the previous use of the site and any local features such as impact of industrial or military activities andplanning restrictions.Where applicable, the specification should indicate site datum on specification drawings and specify siteand drawing orientation and define co-ordinate axes (x, y, z) and numbering order to ensure consistencybetween suppliers of connected equipment.Where appropriate, the specification should define the permitted ground loading, dimensional and timerestrictions on access routes up to but not including public roads or railways.The specification should identify, where appropriate, the environment of the site in which the equipmentwill operate. The following factors may normally be included if appropriate:-climatic e.g. atmospheric pressure, annual variation of air and cooling water temperature, relativehumidity, rain fall, icing, snow, wind velocity (normal and maximum), lightning;-geological e.g. seismic conditions and characteristics of subsoil (e.g. caverns, gliding stratifications, loadbearing capability of subsoils);-geographic e.g. elevation, influence of local topography and structures;-hydrological e.g. flooding and tides.4.3 Equipment taskThe specification should describe in general terms the function, task or role of the equipment to bepurchased, e.g. whether it is part of a new power generating plant, a modification to an existing powergenerating plant, or replacement equipment.Where appropriate, the specification should define the function and the known limitations, if any, in theequipment connected to that which is being supplied so that the equipment may avoid imposing adverseconditions or the supplier may suggest modifications to connected equipment which would ensuresatisfactory operation.4.4 Equipment to be purchasedThe specification may define the equipment type or arrangement to be purchased, for example:-the mill type;-the number of mills;-the unit or station arrangement of oil pumps, oil heaters, etc.The specification may also define preferences for equipment types (or give information) regardingcompatibility with existing equipment, if required.The specification may define any preferences with regard to the grouping of systems, for example, includecommon mill air sealing system for each boiler unit.The specification should define the intended methods or local practice for maintenance, inspection andoperation.The specification should define requirements with regard to the general appearance of the equipment (e.g.dimensions, shape or colour) to meet local planning requirements or specific criteria, where suchrequirements exist.NOTE

Attention is drawn to European, national and/or local legislation which can place restrictions in this area.SIST EN 45510-4-4:2003

EN 45510-4-4:2002 (E)114.5 Control and instrumentationThe specification should define the general requirements for the control and instrumentation system, thelevel of operator intervention allowed or required, integration with other control systems, localised controlloops, commonality and redundancy.NOTE

Guidance on the procurement of control and instrumentation systems for power stations, including advice oninterfaces can be found in EN 45510-8-1 (see Bibliography).4.6 Electrical supplies and other servicesThe specification should define the electrical supplies available for the operatio

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