中国塑料 ›› 2021, Vol. 35 ›› Issue (3): 112-123.DOI: 10.19491/j.issn.1001-9278.2021.03.016

• 标准与测试 • 上一篇    下一篇

聚乙烯管材标准发展现状分析

施建峰1,2, 胡安琪1, 郑津洋1,2()   

  1. 1.浙江大学能源工程学院,杭州 310027
    2.高压过程装备与安全教育部工程研究中心,杭州 310027
  • 收稿日期:2020-08-12 出版日期:2021-03-26 发布日期:2021-03-22
  • 基金资助:
    国家自然科学基金项目(51575480)

Development Status of Technical Standards in Polyethylene Piping

SHI Jianfeng1,2, HU Anqi1, ZHENG Jinyang1,2()   

  1. 1.College of Energy Engineering,Zhejiang University,Hangzhou 310027,China
    2.High?pressure Process Equipment and Safety Engineering Research Center Ministry of Education,Hangzhou 310017,China
  • Received:2020-08-12 Online:2021-03-26 Published:2021-03-22
  • Contact: ZHENG Jinyang E-mail:jyzh@zju.edu.cn

摘要:

对比了聚乙烯管道和金属管道设计方法的差异,分析了标准中对于管材最小壁厚的计算公式差异的原因。综述了聚乙烯管道标准两个体系的区别和联系,其中一个是国际公认的国际标准化组织(ISO)编制的标准体系,另一个是美国机械工程师学会(ASME)、美国材料实验协会(ASTM)、美国塑料管道协会(PPI)编制的标准体系,两个标准体系对聚乙烯材料分级的依据和测试方法不同,壁厚计算中的设计系数取值方式也不同。分析了国内外现行标准中存在的问题,建议中国以当前聚乙烯管道在燃气、给水与核电等领域快速发展为基础,研制出既能满足这些领域应用发展需求,又适应中国现有聚乙烯管道行业发展现状的技术标准体系。

关键词: 聚乙烯管, 标准体系, 材料分级, 设计系数

Abstract:

The differences in the design methods of polyethylene (PE) pipes and metal pipes were compared, and the differences and connections between the two systems of PE pipe standards were reviewed. One of them is an internationally recognized standard system made by the International Organization for Standardization (ISO), and the other belongs to the standard system compiled by the American Society of Mechanical Engineers (ASME), the American Society for Testing and Materials (ASTM), and the American Plastic Piping Association (PPI). The basis and test methods for the classification of PE materials in these two standard systems are different, and the design coefficient values in the wall thickness calculation are also different. The problems in the current domestic and foreign standards were proposed and analyzed. On the basis of the application of PE pipes in the fields of natural gas, water supply, and nuclear power plant in China, some suggestions were proposed for the Chinese government to establish a set of technical standards that can meet the requirement of various applications and are also suitable for the industrial status of PE pipes.

Key words: polyethylene pipe, standard system, material classification, design factor

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