API RP 2611-2011 Terminal Piping Inspection Inspection of In-Service Terminal Piping Systems (First Edition)《终端管道检查.运行中终端管道系统的检查.第1版》.pdf

1、Terminal Piping InspectionInspection of In-Service Terminal Piping SystemsAPI RECOMMENDED PRACTICE 2611 FIRST EDITION, JUNE 2011Terminal Piping Inspection Inspection of In-Service Terminal Piping SystemsDownstream SegmentAPI RECOMMENDED PRACTICE 2611 FIRST EDITION, JUNE 2011Special NotesAPI publicat

2、ions necessarily address problems of a general nature. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed.Neither API nor any of APIs employees, subcontractors, consultants, committees, or other assignees make any warranty or representation, e

3、ither express or implied, with respect to the accuracy, completeness, or usefulness of the information contained herein, or assume any liability or responsibility for any use, or the results of such use, of any information or process disclosed in this publication. Neither API nor any of APIs employe

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6、blication may conflict.API publications are published to facilitate the broad availability of proven, sound engineering and operating practices. These publications are not intended to obviate the need for applying sound engineering judgment regarding when and where these publications should be utili

7、zed. The formulation and publication of API publications is not intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standard is solely responsible for complying with all the applic

8、able requirements of that standard. API does not represent, warrant, or guarantee that such products do in fact conform to the applicable API standard.Classified areas may vary depending on the location, conditions, equipment, and substances involved in any given situation. Users of this RP should c

9、onsult with the appropriate authorities having jurisdiction.All rights reserved. No part of this work may be reproduced, translated, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the pub

10、lisher. Contact the Publisher, API Publishing Services, 1220 L Street, NW, Washington, DC 20005.Copyright 2011 American Petroleum InstituteForewordThis Standard is intended to provide guidance to terminal personnel for the inspection and repair of existing metallic piping systems at terminal facilit

11、ies. This Standard is based largely on accepted industry practice for the inspection and repair of terminal piping.It is the intent of the American Petroleum Institute (API) to keep this publication up-to-date. All terminal piping system Owner/Users are invited to report their experiences in the ins

12、pection and repair of piping systems whenever such experiences may suggest a need for revising or expanding the practices set forth in API 2611. This edition of API 2611 is the first edition. Each edition, revision, or addenda to this API Standard may be used beginning with the date of issuance show

13、n on the cover page for that edition, revision, or addenda. Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything contai

14、ned in the publication be construed as insuring anyone against liability for infringement of letters patent.Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification.Should: As used in a standard, “should” denotes a recommendation or that which is a

15、dvised but not required in order to conform to the specification. This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard. Questions concerning the interpretation of the c

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17、te all or any part of the material published herein should also be addressed to the director.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years may be added to this review cycle. Status of the publication can

18、 be ascertained from the API Standards Department, telephone (202) 682-8000. A catalog of API publications and materials is published annually by API, 1220 L Street, NW, Washington, DC 20005.Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW,

19、Washington, DC 20005, standardsapi.org.iiiContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 General Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.3 Specific Applications . . .

21、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Normative References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Term

22、s, Acronyms, and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23、. . . . . . . . . 53.2 Terms and Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Owner/User Inspection Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24、 . . . . . . . . . . . . . 114.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.2 Authorized Piping Inspector Responsibilities . . . . . . . . . . . . . . . . . . . . . . . .

25、. . . . . . . . . . . . . . . . . . . . . . . . 115 Inspection of Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.2 General Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.3 Preparation for Inspection . . . . . . . .

27、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.4 Inspection for Specific Types of Corrosion and Cracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.5 Methods of Inspection . . . . . . . . . . .

28、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Frequency and Extent of Inspection of Above Ground Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216.1 General . . . . . . . . . . . . . . . . . . . . . .

29、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216.2 Additional Requirements for Insulated Piping Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227 Frequency and Extent of Inspection of Bel

30、ow Ground Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227.1 Inspection Protocols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227.2 Leak Detection Systems. . . . . . . . . . . .

31、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237.3 Cathodic Protection for External Corrosion Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237.4 Indirect (Overline) Surveys for External Co

32、rrosion Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247.5 Below Ground Inspection Intervals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257.6 Leak Testing Intervals . . . . . . . . . . . . . . .

33、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277.7 Inspection Data Evaluation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 Repairs To Piping Systems . .

34、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278.1 Repairs to Coatings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278.2 Clamp

35、Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288.3 Welded Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

36、 . . . . . . . . . . . 288.4 Records. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289 Marine Facilities Inspection/Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37、 . . . . . . . . . . . . . . . . . . . . . . 289.1 Extent of Inspection/Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289.2 Transfer Hoses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

38、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289.3 Metallic Transfer Arms Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289.4 Piping and Piping Components Visual Inspection . . . . . . . . . . . . . .

39、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299.5 U.S. Jurisdiction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Annex A (normative) Inspector Qualifications . . . . . . . . . . . .

40、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Annex B (informative) Summary of Cited Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Annex C (informative) Guidance on Pipe Wall Retirement Thickness. . . .

41、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Annex D (informative) Sample External Inspection Checklist for Process Piping. . . . . . . . . . . . . . . . . . . . . . . . 35vContentsPageAnnex E (informative) Sample Inspection Checklists for Above Ground Piping . . . . . . . . . . .

42、. . . . . . . . . . . . . . 36Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Figures1 Schematic of Piping Systems for Hydrocarbons and Similar Flammable, Combustible, or To

43、xic Fluid Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Tables1 Deadleg Guidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44、 . . . . . . . . . . . 142 Inspection Location Based on Corrosion Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.A Frequency of External Inspection for Buried Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45、 . . . 263.B Recommended Corrosion Testing Protocols for Buried Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26vi1Terminal Piping InspectionInspection of In-Service Terminal Piping Systems1 Scope1.1 GeneralAPI 2611 covers the inspection of typical terminal piping system

46、s within terminal boundaries, which includes off-plot piping. Off-plot piping includes, but is not limited to piping between facilities, piping that comes from or goes to a refinery, or other type facility, or piping that may cross a road, ditch or other property outside the confines of a terminal f

47、acility. Piping for transportation of finished fuel products such as gasoline, diesel, lubricating oils, jet fuel and aviation fuel are covered by the scope of this document. Also covered are piping systems for nonfuel-type fluids. The piping for other terminal nonfuel-type fluids typically found in

48、 terminals, include asphaltic products, process water, transmix, slop water and biofuels. The scope of this document does not include piping in a refinery facility, sanitary waste piping, cast iron piping and nonmetallic gravity flow piping systems.1.2 General ApplicationThe purpose of this document

49、 is to align current terminal piping inspection practices with the appropriate and applicable elements of API 570. API 2611 covers the inspection of existing terminal piping systems. Figure 1 illustrates typical piping configurations that are encountered at terminals. In addition, the figure indicates possible delineation of United States Department of Transportation USDOT (i.e. ASME B31.4/API 1104, Breakout) and non-USDOT (i.e. ASME B31.3, Storage) facilities. Understanding the Codes to which facilities were constructed can facilitate the evaluation of the piping systems. Minor repa