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1、MANUAL PIPE SUPPORTS DEP 31.38.01.29-Gen. December 1997 DESIGN AND ENGINEERING PRACTICE This document is confidential. Neither the whole nor any part of this document may be disclosed to any third party without the prior written consent of Shell International Oil Products B.V. and Shell Internationa
2、l Exploration and Production B.V., The Hague, The Netherlands. The copyright of this document is vested in these companies. All rights reserved. Neither the whole nor any part of this document may be reproduced, stored in any retrieval system or transmitted in any form or by any means (electronic, m
3、echanical, reprographic, recording or otherwise) without the prior written consent of the copyright owners. PREFACE DEP (Design and Engineering Practice) publications reflect the views, at the time of publication, of: Shell International Oil Products B.V. (SIOP) and Shell International Exploration a
4、nd Production B.V. (SIEP) and Shell International Chemicals B.V. (SIC) The Hague, The Netherlands, and other Service Companies. They are based on the experience acquired during their involvement with the design, construction, operation and maintenance of processing units and facilities, and they are
5、 supplemented with the experience of Group Operating companies. Where appropriate they are based on, or reference is made to, national and international standards and codes of practice. The objective is to set the recommended standard for good design and engineering practice applied by Group compani
6、es operating an oil refinery, gas handling installation, chemical plant, oil and gas production facility, or any other such facility, and thereby to achieve maximum technical and economic benefit from standardization. The information set forth in these publications is provided to users for their con
7、sideration and decision to implement. This is of particular importance where DEPs may not cover every requirement or diversity of condition at each locality. The system of DEPs is expected to be sufficiently flexible to allow individual operating companies to adapt the information set forth in DEPs
8、to their own environment and requirements. When Contractors or Manufacturers/Suppliers use DEPs they shall be solely responsible for the quality of work and the attainment of the required design and engineering standards. In particular, for those requirements not specifically covered, the Principal
9、will expect them to follow those design and engineering practices which will achieve the same level of integrity as reflected in the DEPs. If in doubt, the Contractor or Manufacturer/Supplier shall, without detracting from his own responsibility, consult the Principal or its technical advisor. The r
10、ight to use DEPs is granted by SIOP, SIEP or SIC, in most cases under Service Agreements primarily with companies of the Royal Dutch/Shell Group and other companies receiving technical advice and services from SIOP, SIEP or SIC. Consequently, three categories of users of DEPs can be distinguished: 1
11、)Operating companies having a Service Agreement with SIOP, SIEP, SIC or other Service Company. The use of DEPs by these Operating companies is subject in all respects to the terms and conditions of the relevant Service Agreement. 2)Other parties who are authorized to use DEPs subject to appropriate
12、contractual arrangements. 3)Contractors/subcontractors and Manufacturers/Suppliers under a contract with users referred to under 1) or 2) which requires that tenders for projects, materials supplied or - generally - work performed on behalf of the said users comply with the relevant standards. Subje
13、ct to any particular terms and conditions as may be set forth in specific agreements with users, SIOP, SIEP and SIC disclaim any liability of whatsoever nature for any damage (including injury or death) suffered by any company or person whomsoever as a result of or in connection with the use, applic
14、ation or implementation of any DEP, combination of DEPs or any part thereof. The benefit of this disclaimer shall inure in all respects to SIOP, SIEP, SIC and/or any company affiliated to these companies that may issue DEPs or require the use of DEPs. Without prejudice to any specific terms in respe
15、ct of confidentiality under relevant contractual arrangements, DEPs shall not, without the prior written consent of SIOP and SIEP, be disclosed by users to any company or person whomsoever and the DEPs shall be used exclusively for the purpose for which they have been provided to the user. They shal
16、l be returned after use, including any copies which shall only be made by users with the express prior written consent of SIOP and SIEP. The copyright of DEPs vests in SIOP and SIEP. Users shall arrange for DEPs to be held in safe custody and SIOP or SIEP may at any time require information satisfac
17、tory to them in order to ascertain how users implement this requirement. All administrative queries should be directed to the DEP Administrator in SIOP. NOTE: In addition to DEP publications there are Standard Specifications and Draft DEPs for Development (DDDs). DDDs generally introduce new procedu
18、res or techniques that will probably need updating as further experience develops during their use. The above requirements for distribution and use of DEPs are also applicable to Standard Specifications and DDDs. Standard Specifications and DDDs will gradually be replaced by DEPs. DEP 31.38.01.29-Ge
19、n. December 1997 Page 2 TABLE OF CONTENTS 1.INTRODUCTION.4 1.1SCOPE 4 1.2DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS4 1.3DEFINITIONS 4 1.4CROSS REFERENCES7 2.GENERAL. 8 3.DESIGN. 9 3.1CLAMPED SUPPORTS.9 3.2WELDED SUPPORTS9 3.3HANGER SUPPORTS.9 3.4SLIDING SUPPORTS9 3.5SUPPORTING OF INSUL
20、ATED PIPES9 3.6SUPPORTING COLD-INSULATED PIPES.10 3.7NON-INSULATED PIPES10 3.8PIPE SADDLES AND REINFORCING PADS.10 4.FABRICATION, MATERIALS AND WELDING12 5.MARKING AND PAINTING.13 6.INSTALLATION14 7.REFERENCES15 APPENDICES APPENDIX 1PIPE SHOES - SELECTION CHART.17 APPENDIX 2GUIDES - SELECTION CHART
21、18 APPENDIX 3ANCHORS AND DIRECTIONAL ANCHORS - SELECTION CHART.19 APPENDIX 4BASE SUPPORTS - SELECTION CHART20 APPENDIX 5CLAMPED BASE SUPPORTS - SELECTION CHART .21 APPENDIX 6BASE ANCHORS AND BASE PLATES - SELECTION CHART22 APPENDIX 7DUMMY LEGS - SELECTION CHART23 APPENDIX 8TYPICAL DETAILS.24 DEP 31.
22、38.01.29-Gen. December 1997 Page 3 1.INTRODUCTION 1.1SCOPE This DEP specifies requirements and gives recommendations for the design and application of pipe supports in piping systems. This DEP is a revision of the DEP of the same number dated November 1991. In conjunction with this revision, a set o
23、f Standard Drawings has been made which includes the most commonly applied pipe supports, giving their allowable loads and identification. For support selection charts, see Appendices 2 to 8. 1.2DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS Unless otherwise authorised by SIOP or SIEP, the
24、 distribution of this document is confined to companies forming part of or managed by the Royal Dutch/Shell Group, and to Contractorsnominatedby them(i.e.thedistribution codeis“C“,asdefinedin DEP 00.00.05.05-Gen.). This DEP is intended for use in oil refineries, chemical plants, gas plants, supply/m
25、arketing installations and, where applicable, in exploration and production facilities. If national and/or local regulations exist in which some of the requirements may be more stringent than in this DEP, the Contractor shall determine by careful scrutiny which of the requirements are the more strin
26、gent and which combination of requirements will be acceptable as regards safety, economic and legal aspects. In all cases the Contractor shall inform the Principal of any deviation from the requirements of this document which is considered to be necessary in order to comply with national and/or loca
27、l regulations. The Principal may then negotiate with the Authorities concerned with the object of obtaining agreement to follow this document as closely as possible. 1.3DEFINITIONS 1.3.1General Definitions The Contractor is the party which carries out all or part of the design, engineering, procurem
28、ent, construction, commissioning or management of a project or operation of a facility. The Principal may sometimes undertake all or part of the duties of the Contractor. The Manufacturer/Supplier is the party which manufactures or supplies equipment and services to perform the duties specified by t
29、he Contractor. The Principal is the party which initiates the project and ultimately pays for its design and construction. The Principal will generally specify the technical requirements. The Principal may also include an agent or consultant, authorised to act for, and on behalf of, the Principal. T
30、he word Shall indicates a requirement. The word Should indicates a recommendation. DEP 31.38.01.29-Gen. December 1997 Page 4 1.3.2Specific definitions Where applicable, reference is made to the sections or appendices of this DEP, and/or to the relevant standard, where further details can be found. A
31、nchora device which restrains the pipe fromAppendix 4 movement and rotation in all directions. The membertowhichananchorisfixed, however,maybesubjectedto displacementsand/orrotations,e.g. connections to equipment Base support ora dummy pipe with base plate welded to theAppendix 5 pipe stanchionpipe.
32、 The pipe dummy will rests on the supporting structure and so support the pipe. When considerable site adjusting is required, the pipe stanchion may be of the 2-piecetype,weldedtogetherafter adjustment Clamp or clipa device bolted around a pipe or, for coldBS 3974 and insulation, around the insulati
33、on. ClampsAppendix 6 formanintegralpartofhangersand clamped cradles or pipe shoes Constant loada spring loaded support assembly or device supportdesigned such that the supporting effort is constant over the total travel of the support. Constant load supports are meanly used in pipesconnectedtostrain
34、sensitive equipment or for critical systems with large movements. Dummy lega dummy pipe welded to the pipe. The pipeAppendix 8 dummy will rest on the supporting structure and so support the pipe Goal post supportframe type support for situations whereBS 3974-2 heavy loads may be expected Guideadevic
35、econtrollingthedirectionofAppendix 3 movement of piping/supports Guided supportasupportallowedtomovealongaAppendix 3 predetermined axis, controlled by guides Hangera support suspended from concrete floors,BS 3974-1 beams etc Insertspoured-in fixtures,in concrete floors orAppendix 9 columns, allowing
36、 supports and/or hangers to be bolted Pipe shoe or cradlea pipe support welded or clamped to a pipeAppendix 2 Pipe stopadevicepreventingthepipefromAppendix 3 and displacementinonedirectionmaybeAppendix 9 applied in combination with a guide in an other direction DEP 31.38.01.29-Gen. December 1997 Pag
37、e 5 Pivotan element similar to a base support, butAppendix 9 which allows the pipe to rotate around and to move along the longitudinal axis of that pivot. These supports are usually used as a sort of base support but they allow vertical movement and rotation while preventing lateralmovement.Downward
38、movement can be restricted with this type of support Rest supportLocation where a pipe is resting with or without the application of a pipe shoe on the supporting structure Reinforcing pad ora plate welded to the pipe in order toSection 3.8 saddlereinforce thin-walled pipe to prevent the pipe from b
39、eing damaged Rotating supportan anchor which allows the line to rotateAppendix 9 around the longitudinal axis of that support but prevents vertical and lateral movement Shear luga welded attachment to the pipe at one orAppendix 4 both sides of a clamped cradle or pipe shoe, preventing the pipe from
40、slipping through the pipe support Snubbera shock absorbing device, allowing the pipe to freely and slowly move whilst absorbing sudden shocks (e.g. seismic). It may be of the hydraulic, spring loaded or verge and verge wheel type. Sway braceanadjustablespringorfrictionloadedBS 3974-1 device,usuallya
41、ppliedforcontrolling vibration, absorbing shock loading, guiding or restraining the movement of the pipe and bracing against sway Sway strutan adjustable device, usually applied for restrainingmovementofpipinginone direction while providing for movement in another direction. Spring hangera suspended
42、 spring loaded supportBS 3974-1 Spring supportaspringloadedassemblyordevice,Section 6 and supporting the pipe from underneathBS 3974-1 Trunniona tubular supporting device, branching-offBS 3974-1 horizontally from a vertical line, and resting on,orsuspendedfrom,thesupporting structure U-bolta light-d
43、uty fixture, U-shaped, with bothBS 3974-1 endsthreadedandprovidedwithnuts. These supports can be used for both semi- fixed or guiding points 1.4CROSS REFERENCES Where cross-references to other parts of this DEP are made, the referenced section number is shown in brackets. Other documents referenced
44、by this DEP are listed in (12). DEP 31.38.01.29-Gen. December 1997 Page 6 2.GENERAL DEP 31.38.01.11-Gen. is applicable for the piping and specifies the required positioning of pipe supports. Typical sketches and dimensions of pipe supports are given in BS 3974, MSS SP 58 and MSS SP 69. Standard pipe
45、 support details are given in the Standard Drawings listed in (7). The Contractor shall prepare a specification and a bill of material for pipe supports. The specification for pipe supports shall contain: -an index of the identification of the standard pipe supports; -dimensional sketches of the sta
46、ndard pipe supports and/or a reference to applied standards; -a description of the pipe support identification numbering system; -the maximum allowable loading of the standard pipe supports; -materials of construction; -surface protection. The bill of material for pipe supports shall contain: -a lis
47、t of the special pipe support identification numbers; -a summary of the standard pipe supports; -dimensional sketches of the special supports including materials of construction and surface protection; -material summary sheets. Supports shall be standardised as far as practical and shall bear an ide
48、ntification number. Special support identification numbers shall include the unit and/or area number. A set of Standard Drawings has been made which includes the most commonly applied pipe supports, giving their allowable loads and identification. For support selection charts, see Appendices 2 to 8.
49、 The Contractor may use his own standards and/or commercially available pipe supports and methods provided they comply with this DEP. For centre-to-centre distance of supports for straight steel pipes and correction factors for bent steel pipe, see DEP 31.38.01.11-Gen. For supporting glass-lined ste
50、el piping and plastic piping, the installation instructions of the supplier shall apply. DEP 31.38.01.29-Gen. December 1997 Page 7 3.DESIGN 3.1CLAMPED SUPPORTS The position of clamped supports may be adjusted during construction to correct mismatches between the location of the support and the locat