1、BRITISH STANDARDBS EN ISO 15138:2007Petroleum and natural gas industries Offshore production installations Heating, ventilation and air-conditioningThe European Standard EN ISO 15138:2007 has the status of a British StandardICS 75.180.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44
2、g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 15138:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 58
3、0 54912 0National forewordThis British Standard is the UK implementation of EN ISO 15138:2007. It supersedes BS EN ISO 15138:2001 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee PSE/17, Materials and equipment for petroleum, petrochemical and natural g
4、as industries, to Panel PSE/17/-/6, Processing equipment and systems for petroleum and natural gas industries.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. Use
5、rs are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15138December 2007ICS 75.180.10 Supersedes EN ISO 15138:200
6、0 English VersionPetroleum and natural gas industries - Offshore productioninstallations - Heating, ventilation and air-conditioning (ISO15138:2007)Industries du ptrole et du gaz naturel - Plates-formes deproduction en mer - Chauffage, ventilation et climatisation(ISO 15138:2007)Erdl- und Erdgasindu
7、strie - Offshore-Produktionsanlagen -Heizung, Lftung und Klimatisierung (ISO 15138:2007)This European Standard was approved by CEN on 14 December 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status
8、of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 vers
9、ion in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denma
10、rk, Estonia, Finland,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 STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONE
11、UROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 15138:2007: EForeword This document (EN ISO 15138:2007) has been prepared by Technical Commi
12、ttee ISO/TC 67 “Materials, equipment and offshore structures for petroleum and natural gas industries“ in collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries“, the secretariat of which is held by AFNOR
13、. 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 June 2008, and conflicting national standards shall be withdrawn at the latest by June 2008. Attention is drawn to the possibility that some of th
14、e elements of this document 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 document supersedes EN ISO 15138:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
15、following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
16、 Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 15138:2007 has been approved by CEN as a EN ISO 15138:2007 without any modification. BS EN ISO 15138:2007Reference numberISO 15138:2007(E)INTERNATIONAL STANDARD ISO15138Second edition2007-12-15Petroleum
17、and natural gas industries Offshore production installations Heating, ventilation and air-conditioning Industries du ptrole et du gaz naturel Plates-formes de production en mer Chauffage, ventilation et climatisation BS EN ISO 15138:2007ii iiiContents Page Foreword iv 1 Scope . 1 2 Normative referen
18、ces . 1 3 Terms and definitions. 2 4 Abbreviated terms 3 5 Design 4 5.1 Introduction . 4 5.2 Development of design basis 7 5.3 System design General . 28 5.4 Area-specific system design . 32 5.5 Equipment and bulk selection. 42 5.6 Installation and commissioning 42 Annex A (normative) Equipment and
19、bulk selection 43 Annex B (normative) Installation and commissioning . 64 Annex C (informative) Operation and maintenance 69 Annex D (informative) Datasheets 72 Annex E (normative) Standard data for flanges 106 Bibliography . 109 BS EN ISO 15138:2007iv Foreword ISO (the International Organization fo
20、r Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the
21、 right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Internati
22、onal Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication
23、as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
24、ISO 15138 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing equipment and systems. This second edition cancels and replaces the first edition (ISO 15138:2000), which has b
25、een technically revised. It also incorporates the Technical Corrigendum ISO 15138:2000/Cor.1:2001. BS EN ISO 15138:20071Petroleum and natural gas industries Offshore production installations Heating, ventilation and air-conditioning 1 Scope This International Standard specifies requirements and prov
26、ides guidance for design, testing, installation and commissioning of heating, ventilation, air-conditioning and pressurization systems and equipment on all offshore production installations for the petroleum and natural gas industries that are new or existing, normally occupied by personnel or not n
27、ormally occupied by personnel, fixed or floating but registered as an offshore production installation. For installations that can be subject to “Class” or “IMO/MODU Codes b) acceptable air quality in all adverse weather conditions; c) reliable performance through concept selection, the design havin
28、g the following features in decreasing order of importance: 1) simplicity, with a preference for passive systems, 2) inherent robustness by providing design margins for systems and equipment, 3) fault/status indication and self diagnostics, 4) sparing of systems and equipment, 5) maintainability thr
29、ough testability, inspectability and ease of access. The following additional requirements apply to specific areas in the installation to ensure their safety goals are met: maintain the survivability in the TR by preventing ingress of potentially flammable gas-air mixtures through appropriate siting
30、, isolation, pressurization, provision of multiple air-intake locations, sufficient number of air changes, gas detection and emergency power supply; BS EN ISO 15138:20075 prevent the formation of potentially hazardous concentrations of flammable gaseous mixtures in hazardous areas by the provision o
31、f sufficient ventilation and air distribution for the dilution, dispersion and removal of such mixtures, and contain such mixtures, once formed, through maintaining relative pressures, avoiding cross-contamination and providing dedicated systems for hazardous areas; prevent, through pressurization,
32、the ingress of potentially flammable gas-air mixtures into all designated non-hazardous areas; maintain ventilation to all equipment and areas/rooms that are required to be operational during an emergency when the main source of power is unavailable; provide a humidity- and temperature-controlled en
33、vironment in which personnel, plant and systems can operate effectively, free from odours, dust and contaminants, including smoke control. These high-level goals are supported by the lower-level functional requirements that are stated later in the appropriate subclauses of this International Standar
34、d. Functional requirements in the development of a basis of design for either a new project or major modification to an existing installation are the focus of 5.2. These requirements are related to the following: platform orientation and layout (5.2.1); hazard identification and hazardous-area class
35、ification (5.2.2); environmental conditions (5.2.3); choice of natural or mechanical ventilation systems (5.2.4); development of the controls philosophy (5.2.5); operating and maintenance philosophy (5.2.6); materials selection (5.2.7); design margins and calculations (5.2.8); design development and
36、 validation using wind-tunnel testing or computational fluid dynamics (CFD); (5.2.9). Ventilation may be natural (i.e. the wind) or mechanical or a combination of both. Throughout this International Standard, the use of the term “ventilation” should be taken to include either natural or mechanical v
37、entilation, as appropriate. Natural ventilation is preferred over mechanical ventilation, where practical, since it is available throughout gas emergencies, does not rely on active equipment and reduces effort required for HVAC maintenance. For new designs, the development of a design basis shall be
38、 progressed using the practices that are identified in this International Standard, though it should be recognized that it involves a process of iteration as the design matures and does not take place as the sequential series of steps used in this International Standard to facilitate presentation. T
39、he processes outlined here are equally applicable to major redevelopments of existing installations, but it can be necessary to make some compromise as a result of historical decisions regarding layout, equipment selection and the prevailing level of knowledge at the time. The challenge of providing
40、 cost-effective solutions in redevelopment can be significantly greater than for a new design. The finalized basis of design may be recorded on datasheets such as those provided in Annex D. The completed design shall be subject to hazard-assessment review. The hazard and operability study (HAZOP) te
41、chnique may be used for this. BS EN ISO 15138:20076 In 5.2, objectives are identified which establish the goals. Detailed requirements that enable the objectives to be achieved are outlined. It is the responsibility of the user to assess whether the requirements in this International Standard are ac
42、ceptable to the local regulator. In 5.3, the fundamental choice in system design, i.e. between natural and mechanical methods of ventilation, is addressed. The functional requirements associated with the design of HVAC systems for different areas of a typical offshore installation that require parti
43、cular technical considerations due to their location and/or their function are given in 5.4. Figure 1 is intended to illustrate the processes undertaken at various stages of the installation life cycle and to identify reference documents and the appropriate subclauses of this International Standard
44、that provide the necessary requirements. Figure 1 Application of this International Standard to a project life cycle BS EN ISO 15138:200775.2 Development of design basis 5.2.1 Orientation and layout 5.2.1.1 Objective The objective is to provide input into the early stages of design development so th
45、at areas and equipment that can have a requirement for HVAC, or be affected by its provision, are sited in an optimum location, so far as is reasonably practicable. 5.2.1.2 Functional requirements Installation layout requires a great deal of coordination between the engineers involved during design
46、and the operation, maintenance and safety specialists. Attention shall also be paid to the minimization of construction, offshore hook-up and commissioning. It is not the intention of this International Standard to detail a platform-layout philosophy, but to identify areas where considerations of th
47、e role of HVAC, and requirements for it, can have an impact in the decision making surrounding installation orientation and layout. Installations can have a temporary refuge (TR). The TR is in almost all cases the living quarters (LQ), where they are provided. The survivability of the TR, which is d
48、irectly related to the air leakage rate, can introduce consideration of active HVAC systems for pressurization of the TR or enclosed escape and evacuation routes. Active systems require detailed risk-assessment exercises to be undertaken as part of the design verification, and passive systems are ge
49、nerally preferred since they do not rely on equipment functioning under conditions of emergency. Hazardous areas, particularly those containing pressurized hydrocarbon systems, should be located as far as practicable from the TR, so that any gas leaks are naturally dispersed. The layout shall include correct positioning of ventilation inlets and outlets, engine inlets and exhausts, vents and flares to allow for safe operation, particularly of the TR. Hot exhausts shall not interfere with crane, helicopter, production or dri
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