Power Piping
ASMEB31.1-2016(Revision.of ASMEB31.1-2014)
動力管道
ASME Code for Pressure Piping B31
The next edition of this Code is scheduled for publication in 2018.This Code will bee effective 6months aftertheDateofIssuance.本规范的下一版次将安排在2018年出版.本规范在发行之日起的第6 个月之后生效
ASME issues written repliesto inquiries conceming interpretations of technical aspects of this Code.Inter-pretations are published under Periodically certain actions of the ASME B31Committees may be published as Cases. Cases are published on the ASME Web site under the Committee Pages at go./B3lmittee as theyare issuedASME对於有关本规范技术方面的解释询问给出了书面答复当发布有关解释时，它们将被刊登在 B31委员會之定期的某些行动也會以案例方式公怖.根據委员會所登布的案例會在go./B31mittee的ASME官方细页登布
Errata to codes and standards may be posted on the ASME Web site under the Committee Pages to providecorrections to incorrectly published items or to correct typographical or grammatical errors in codes and stand ards.Such errata shallbe used on the date posted.ASME就本规范有技街方面的解释登出書面答复解释都将登伟在
The B31 Committe Pages can be found at The associated B31 Commit-tee Pages for each code and standard can be accesed from this main page.There is an option available to auto-maticallyreceive ane-mail notification when errata are posted to a particular code or standard.Afterreceiving the notice theuser canbe found ontheappropriateerrata from the corresponding mitteeweb page.Hhisopionan-befoun-nthepproprate-Comie-PageaffeseletingEatanhePublitionnfortnem對规范和操率的勘會在ASME各相關委员會之網站页面上發布，以订正已登布的不正確项 目或修正规范和標率中印刷或语法上的错误这种勘误愿在公饰日期即便生效B31各相關委員會網页可在go./B31委员會中找到.各规范和操率可造访B31各相關委員會主页.雷對特定规航或標率登饰勘误時，在買费權下用户將自動接收到電子郵件的通知，用户在接到通知之后可针對其 所需要挑遇之勘操表在相應委員會網页上找到.
ASME is the registered trademark of The American Society of Mechanical Engineers.ASME 是美国機械工程师學會的注册商操
American National Standards and it is an American National Standard.The Standards Committee that approved This intermational code or standard was developed under procedures accredited as meeting the criteria forthe code or standard was balanced to assure that individuals from petent and concermed interests have hadan opportunity to participate. The proposed code or standard was made available for public review and ment that provides anopportunity foradditional public nput fromindustry academiaregulatory agenciesand thpublic-at-large.本国際规范或標率是根據美国图家標率所部可之程序制定的且是美国国家標率各相開委員會是在為確保有能力和有關利益之国人有機會参理念上，韭權衡公求意见才批准此類规范或操准 的所要提出之规范或標率可供公累逸行害查和评输，以能镶工案界、学街界、监管機橘和公累提供更多的公軍意见
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ASME does not take any position with respect to the validity of any patent rights asserted in connection withany items mentioned in this document and does not undertake to insure anyone utilizing a standard against liaare expressly advised that determination of the validity of any such patent rights and the risk of infringement of bility for infringement of any applicable letters patent nor assume any such liability. Users of a code or standardsuchrights is entirely their own responsibility.ASME對在本文件中所提到之任何專利權的有效性不承据 任何责任既不承诺保證任何人利用標单而對任何逸用專利特許證造成侵權侵害事宜承携责任，也不承任何此频所衍生之债務於此鄭重地地告知各规范或模准用户，對任何此频專利權有效性的確以及侵犯這些專利權的风险完全是属於他们自己的责任.
as government or industry cndorsement of this code or standard.聯邦機構代表人或典行黛有人士的参典 Participation by federal agency representative(s) or person(s) affliated with industry is not to be interpreted不應被解释為政府或行案可此规范或操率.
ASME accepts responsibility for only those interpretations of this document issued in accordance with theestablished ASME procedures and policies which precludes the issuance of interpretations by individuals.
ASME谨接受按照ASME的既定程序和政策對本文件所登布之解释承携鹿有责任其中排除由人登布的解释.
No part of this document may be reproduced in any form in an lectronic retrieval system or otherwise without theprior written permissionofthe publisher，事先未獲得出版商之書面许可前，不得以任何形式、電子取系统或以其他方式夜製本文件的任何部分.
工程師協會地址：Two Park Avenue New York NY 10016-5990. The American Society of Mechanical Engineers Two Park Avenue New York NY 10016-5990.美国機械
FOREWORD前言
Power Boilers of the ASME Boiler and Pressure Vessel Code as they can be applied to power piping systems. The general philosophy underlying this Power Piping Code is to parallel those provisions of Section I The Allowable Stress Values for power piping aregenerally consistent with those assigned for power boilers.This Code is more conservative than some other piping codes reflecting the need for long service life and maxi- mum reliability in power plant installations.The Power Piping Code as currently written does not differentiateamong the dsign faricatinnd rtinrqurments or suprritcalriticalandnritical pipingy tems except for certain stress calculations and mandatory nondestructive tests of welds for heavy wall highto avoid the inference that noncritical systems do not require petence n dsign fabrication and erecton.Someday such levels of quality maybe definable so that the need for the many diferent piping codes will beovere.因動力管道规范的基本原理是興ASMEBPVC第一册動力锅域都可應用於動力管道系統因 此對於它們的要求是相一致.動力管道之许用應力值通常也興動力锅的许用應力值一致由於本规范比其他某些管道规范更保守因此按本规范所安装之電廠将反映出具有较久的使用毒命和最大的可靠性在目前已文件化之功率管道规范中，除某些感力计算和用於高温感用之强制性厚壁缝無损检测要 求有所不同外，董未對超臨界、臨界和非臨界管道系统的设计製作和安装要求作出區分所涉及的局题是试圆就如何评估流體臨界性達成一致性，韭避免推断非臨界系统在设計製作和安装方面不要求其所需额定能力有朝一日，對如此質量等级是可提出相應规定的，因此對许多不同管道规范的需求將逐一被克服.
There aremany instances where theCode serves to wan a designer fabricatoror erector against possblejudgment.在本规范中有很多例子可為设计师、製造商或建造築商提供可能的陷阱警告：但规范韭非手 册因此是绝對無法取代教育、经验和合理工程判断.
Nonmandatory Appendices are included in the Code.Each contains nformation on a specific subject and ismaintained current with the CodeAlthough written in mandatory language theseAppendices are offered for applicationat theuser'sdiscretion.在本规范中包括非强制性附缘.各非强制性附錄都包含有關特定主题的信息，典本规范保持同步信管以强制性语言撰寫但是这些附绿是為用户在自行法定是否將所通用之非强制性附纳入合约中時而提供的.
requirements as he feels they may be justified. Conversely a designer who is capable of a more rigorous analy- The Code never intentionally puts a ceiling limit on conservatism. A designer is fre to specify more rigidsis thanisspecified in the Codemay justifyaless conservative design and stillsatisfy the basicintent of theCode.本规范促未故意對保守设计数據提出上限當地管辖機構、用户、设计師可自由地指定更照格的 要求，因他觉得它们可能是合理的相反當设计师可證明在本规范中的設计仍不约保守時亦能约逃行本比本规范更為服谨的分析但仍需符合本规范的基本意圖.
terialsfabrication practice and testing techiquesand endeavors tokeep the Codeupdated to pemit the u The Power Piping Committee strives to kcep abrecast of the current technological improvements in new ma-的技術進步：并努力更新规范以便将可接受的新研發技術成果纳入规范中以提供用户得以運用.
American National Standard under the direction of ASME Committe B31 Code for Pressure Piping.ASME The ASME B31 Code for Pressure Piping consists of a number of individually published Sections each anB31屋力管道规范是由許多單猫出版的各册所组成的且在ASME委员會B31壓力管道规范的指得下，每册都是美园国家標率.
for various types of pressure pipingApplications considered for cachCode Section include用各册之条款都 Rules for each Section have been developed considering the need for application of specific requirements是考虑到對各類型壓力管道的特定愿用需求而聚定的.所考虑各规范册的應用包括了如下线册：
B31.1Power Piping: piping typically found in electric power generating stations in industrial andinstitutional plants geothermal heating systems and central and district heating and cooling systems 力 道：通常用於發電站、工業和機構工廠、地热供暖系统、中央和区域供热和製冷系统中所運用到之管道
B31.3Process Piping: piping typically found in petroleum refineries; chemical pharmaceutical textile paper semiconductor and cryogenic plants; and related processing plants and terminals工管道 ：石
B31.4Pipeline Transportation Systems for Liquids and Slurries: piping transporting products thatare predominately liquid between plants and terminals and within terminals pumping regulating and metering stations液體和泥聚運输管道系统：旨在對设備和终端设備之間以及在终端设備、泵送，调節和计量站之間的液體提供產品的输送管道
B31.5 Refrigeration Piping and Heat Transfer Components: piping for refrigerants and secondarycoolants製冷管路和傅热部件：作為製冷刻和二次冷部剂的输送管路
dominately gas between sources and terminals including pressor regulating and metering stations; and gasgatheringpipelines输氣和配氧管道系统：主要用於氯體供愿站和终端设備間之氯體產品的管道输送， 其中包括了屋缩機、调節和計量站以及氧體集输管道
B31.9Building Services Piping piping typically found in industrial institutional mercial andpublic buildingsand multiunit resiences which does not require the range of sizes ressures and tempeaturescoveredinB31.1建筑管道系统和配件：通常在工案、機構商案、公共建築以及多单元住宅中被 探用的管道其中所運用之尺寸、屋力和温度范園不需涵蓄在B31.1中
B31.12Hydrogen Piping and Pipelines: piping in gaseous and liquid hydrogen service and pipelinesingaseous hydrogen service氢管道系統和其管線：氯態和液態氢管線以及氧態氢管道
Section B31.1 where the word Code is used without specific identification it means this Code Section.这是 This is the B31.1 Power Piping Code Section.Hereafter in this Introduction and in the text of this CodeB31.1動力管道规范册.此後，在本前言和在本B31.1规范册之本文中，如果探用规范一词而又没有明確的標識时则表示是本管道规范册.
Itis the owner’s responsibility to select the Code Section that most ncarly applies to a proposed piping in-ments and the applicability of other codes and standards. All applicable requirements of the selected Code Sec- tion shall be met.For some installationsmore than one Code Section may apply to different parts ofthe installation. The owner is also responsible for imposing requirements supplementary to those of the selected CodeSection if necessary to assure safe piping for the proposed installation.者有费任遥用最接追挺管道设 置所遍用之规范册在案主考虑的因素中应包括本规范册之局限性、当地管辖機桥要求以及其他法规和棵率的逸用性，應符合所還用范册的遍用要求對於某些安装，多類规范册可能遗用於不同的安装零部件.如有必要時業主還负青對所遥规范册强加附加要求以確保概安装管路的安全.
施内的某些管道可能受制於其他规范和操率，其中包括但不谨限於如下段種： Certain piping within a facility may be subject to other codes and standards including but not limited to 设
-ASME Boiler and Pressure Vessel Code Section II: nuclear power piping ASME码域和座力容器规范，第三册：核動力管道
ANSI Z223.1/NFPA 54 National Fuel Gas Code: piping for fuel gas from the point of delivery to the con- nectionofeachfuelutilization deviceANSI Z223.1/NFPA54美国国家燃氯规范：输送站連接到各燃料使用设備之間的燃氧管道
foam drychemical，andwetchemicalsNFPA消防棵率：使用水、二氧化碳减火器、海荒、泡沫减火器、 乾粉减火器和湿式减火器等之消防系统
