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1、BS EN 1474-3:2008 ICS 75.200 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Installation and equipment for liquefied natural gas Design and testing of marine transfer systems Part 3: Offshore transfer systems This British Standard was published under the auth
2、ority of the Standards Policy and Strategy Committee on 30 June 2009 BSI 2009 ISBN 978 0 580 57978 3 Amendments/corrigenda issued since publication DateComments BS EN 1474-3:2008 National foreword This British Standard is the UK implementation of EN 1474-3:2008. The UK participation in its preparati
3、on was entrusted to Technical Committee GSE/38, Installation and equipment for LNG. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for it
4、s correct application. Compliance with a British Standard cannot confer immunity from legal obligations. 标准分享网 w w w .b z f x w .c o m 免费下载 BS EN 1474-3:2008 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1474-3 December 2008 ICS 75.200 English Version Installation and equipment for liquefied
5、natural gas - Design and testing of marine transfer systems - Part 3: Offshore transfer systems Installations et quipements de gaz naturel liqufi - Conception et essais des systmes de transfert marins - Partie 3: Systmes de transfert offshore Anlagen und Ausrstung fr Flssigerdgas - Auslegung und Prf
6、ung von Schiffsbergabesystemen - Teil 3: Offshore- bergabesysteme This European Standard was approved by CEN on 1 November 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standar
7、d without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other la
8、nguage made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Fin
9、land, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES
10、KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1474-3:2008: E BS EN 1474-3:2008 EN 1474-3:2008 (E) 2 Contents Page Foreword4 1 Scope 5 2 Normative refer
11、ences5 3 Terms and definitions .5 4 Definition and ability of the LNG transfer systems7 4.1 System requirement 7 4.2 Overall safety philosophy.7 4.3 Overall functional targets and requirements8 4.4 Design principles and risk assessment methodology.8 4.5 Design principles.9 4.6 Risk assessment10 4.6.
12、1 Hazard identification .10 4.6.2 Risk analysis11 4.6.3 Risk assessment11 4.6.4 Acceptance criteria12 4.7 Safety-critical elements.12 4.8 Performance standards.12 4.9 Risk reduction12 5 New design qualification.13 5.1 Design qualification.13 5.2 Technology assessment.14 5.3 Risk assessment: failure
13、mode identification 14 5.4 Analysis and testing14 5.5 Reliability analysis.16 5.6 Compliance statements 16 6 Design basis and criteria of a LNG transfer system16 6.1 General16 6.2 Supporting structures and equipment 17 6.3 Transfer line diameter and product data.17 6.4 Dimensions and clearances .17
14、6.5 Stress analysis.18 6.6 Dynamic behaviour (cyclic motions amplitude, speed and fatigue)18 6.7 Special loads situations18 6.8 Product swivel joints and structural bearings19 6.9 Connecting/disconnecting device .19 6.10 Handling for connection, disconnection, storing.19 6.11 Communications, evacuat
15、ion and rescue.19 6.12 Others .20 7 Safety precautions.21 7.1 Introduction21 7.2 Communication21 7.3 Approach and control monitoring berthing and connection process .21 7.4 Position monitoring, alarm and shut down system for the LNG transfer systems22 7.5 ERS system22 7.6 Safety interfaces22 7.7 Con
16、trol of fluid transfer.23 8 Connection with the LNGC .23 8.1 Two main categories of LNG transfer systems are anticipated: 23 标准分享网 w w w .b z f x w .c o m 免费下载 BS EN 1474-3:2008 EN 1474-3:2008 (E) 3 8.2 Additional requirements for the ship shall address:.23 8.3 In order maximise the level of standar
17、disation the following guidance shall be observed:.24 8.4 Systems and equipment for the position control of the LNG carrier during berthing, connection and transfer: 24 9 Operating and control design 24 10 Inspection and tests24 11 Quality assurance and control.24 12 Documentation 24 Annex A (normat
18、ive) Procedure for deviation from the full standard.26 Bibliography27 BS EN 1474-3:2008 EN 1474-3:2008 (E) 4 Foreword This document (EN 1474-3:2008) has been prepared by Technical Committee CEN/TC 282 “Installation and equipment for LNG”, the secretariat of which is held by AFNOR. This European Stan
19、dard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2009, and conflicting national standards shall be withdrawn at the latest by June 2009. Attention is drawn to the possibility that some of the elements of this d
20、ocument may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This European Standard consists in 3 parts: EN 1474-1: Installation and equipment for liquefied natural gas Design and testing of marine transfer systems Part
21、1: Design and testing of transfer arms EN 1474-2: Installation and equipment for liquefied natural gas Design and testing of marine transfer systems Part 2: Design and testing of transfer hoses EN 1474-3, Installation and equipment for liquefied natural gas Design and testing of marine transfer syst
22、ems Part 3: Offshore transfer systems According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Gree
23、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 标准分享网 w w w .b z f x w .c o m 免费下载 BS EN 1474-3:2008 EN 1474-3:2008 (E) 5 1 Scope This European Standard give
24、s general guidelines for the design of liquefied natural gas (LNG) transfer systems intended for use on offshore transfer facilities or on coastal weather exposed transfer facilities. The transfer facilities considered may be between floating units, or between floating and fixed units. The specific
25、component details of the LNG transfer systems are not covered by this European Standard. Reference is made to EN 1474-1 and EN 1474-2 where appropriate. As a general statement the present standard applies to all transfer systems given in the scope. However, some transfer system designs may require a
26、 deviation from the full standard as described in normative Annex A. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced do
27、cument (including any amendments) applies. EN 1473, Installation and equipment for liquefied natural gas Design of onshore installations EN 1474-1:2008, Installation and equipment for liquefied natural gas Part 1: Design and testing of transfer arms EN 1474-2:2008, Installation and equipment for liq
28、uefied natural gas Part 2: Design and testing of transfer hoses EN 1532, Installation and equipment for liquefied natural gas Ship to shore interface EN 61511-1, Functional safety Safety instrumented systems for the process industry sector Part 1: Framework, definitions, system, hardware and softwar
29、e requirements (IEC 61511-1:2003 + corrigendum 2004) EN 61511-2, Functional safety Safety instrumented systems for the process industry sector Part 2: Guidelines for the application of IEC 61511-1 (IEC 61511-2:2003) EN 61511-3, Functional safety Safety instrumented systems for the process industry s
30、ector Part 3: Guidance for the determination of the required safety integrity levels (IEC 61511-3:2003 + corrigendum 2004) EN ISO 9000, Quality management systems Fundamentals and vocabulary (ISO 9000:2005) EN ISO 9001, Quality management systems Requirements (ISO 9001:2000) 3 Terms and definitions
31、For the purposes of this document, the following terms and definitions apply. 3.1 attitude various modes of use and/or location of the transfer system (i.e. manoeuvring, stowed, connected, washing, hydrostatic test and maintenance). The transfer system may take several positions for each attitude NO
32、TE Transfer system see 3.18. BS EN 1474-3:2008 EN 1474-3:2008 (E) 6 3.2 bank of transfer lines all the transfer lines on the transfer system NOTE Transfer lines see 3.17. 3.3 cargo manifold (or manifold) pipe assembly mounted on board LNG carrier to which the outboard flanges of the transfer system
33、are connected 3.4 coupler manual or hydraulic mechanical device used to connect the transfer system to the LNG carriers manifold NOTE This device, when not employing a bolted connection, is often also referred to as QCDC i.e. quick connect/disconnect coupler. 3.5 design pressure pressure for which t
34、he transfer system is designed 3.6 design temperature range of temperatures for which the transfer system is designed 3.7 emergency release coupling (ERC) device to provide a means of quick release of the transfer system when such action is required only as an emergency measure 3.8 emergency release
35、 system (ERS) system that provides a positive means of quick release of transfer system and safe isolation of LNG carrier and transfer system. An ERS normally contain one or several ERCs 3.9 emergency shut down (ESD) method that safely and effectively stops the transfer of LNG and vapour between the
36、 LNG carrier and the LNG terminal 3.10 envelope, operating (or operating envelope) volume in which the presentation flange(s) of a (group of) transfer line(s) is (are) required to operate 3.11 LNGC mooring LNGC mooring arrangement on the terminal NOTE The possible mooring configuration includes: con
37、ventional mooring (jetty, quay, GBS/Gravity Base Structure, ), Multi-Buoy Mooring/Conventional Buoy Mooring (MBM/CBM, ), side-by-side mooring of two floating units, tandem mooring (single or double hawsers arrangement, “crowfoot” hawser arrangement, rigid or articulated yokes, ), DP (Dynamic Positio
38、ning) or semi DP systems. 3.12 LNGC First Order Motions heave, pitch, roll, surge, sway, yaw NOTE These motions apply as well for a floating LNG terminal. 标准分享网 w w w .b z f x w .c o m 免费下载 BS EN 1474-3:2008 EN 1474-3:2008 (E) 7 3.13 LNGC Second Order Motions other motions of the LNGC when moored on
39、 the LNG terminal that have to be taken into account in the design and operations like fishtailing, jack-knifing NOTE These motions results from the behaviour of the ship due to the mooring configuration. They apply in combination with the LNGC motions in 3.12. 3.14 LNG terminal LNG plant with lique
40、faction or re-gasification facilities NOTE The LNG transfer system is part of the LNG plant. The LNG terminal is supporting the transfer system that can be onshore or offshore mounted on a fixed or floating structure with or without storage facility. 3.15 performance standard statement, which can be
41、 expressed in qualitative or quantitative terms, of the performance required of a system, item of equipment, person or procedure, and which is used as the basis for establishing the design specification, manufacturing and installation for the safe operation through the life cycle of the installation
42、 3.16 surge pressure rapid change in pressure as a consequence of a change in flow rate in the transfer system 3.17 transfer line (or product line) articulated piping, the transfer hose and swivels if any, or a combination of the piping and hose, allowing the transfer of LNG and natural gas between
43、the LNGC and the LNG terminal 3.18 transfer system LNG and natural gas transfer system, the transfer system comprises the transfer lines and all their supporting structure including the supporting structure on the LNG terminal, complete with all accessories, control/detection systems, energy supply
44、NOTE The transfer systems have typically mobile and fixed parts. 4 Definition and ability of the LNG transfer systems 4.1 System requirement A description of the system and the operation shall be established. Any system for offshore or coastal weather exposed operations, including LNG-C mooring and
45、transfer systems, has to be considered as new development, should it incorporate arms or hoses. Development of specific performance standards for compliance would be required. These performance standards would be developed based on risk assessment techniques (see Clause 5). 4.2 Overall safety philos
46、ophy An overall safety philosophy shall be established and documented by the owner, reflecting applicable legislation, owner requirements, industry standards and best practices. The overall safety philosophy shall address the risk categorisation and also acceptance criteria. It shall be complemented
47、 as necessary, prior to commissioning, with vendor specific recommendation concerning precautions for use of the systems or parts of it. It shall be consistent with the terminal general safety philosophy. BS EN 1474-3:2008 EN 1474-3:2008 (E) 8 4.3 Overall functional targets and requirements The over
48、all functional requirements for the cargo transfer system shall be identified and documented. As a minimum the following capabilities shall be addressed for the different operational phases: berthing configuration (tandem or side by side or single point mooring, ); additional requirements to the man
49、ifold on the LNG carrier when required (e.g. tandem or single point mooring offloading); berthing and mooring procedure; procedure for connection, transfer and disconnect including emergency release; process of monitoring and management of continual relative movements between vessels (CPMS, telemetry etc.); procedure and facilities handling, lifting and storing of transfer equipment; transfer capacities for LNG and vapour return (volume flow, pressure, temperature); availability requirements; requirements fo