天津科技
天津科技
천진과기
TIANJIN SCIENCE & TECHNOLOGY
2015年
4期
45-47
,共3页
油气管道%在役焊接%安全性%修复装置
油氣管道%在役銲接%安全性%脩複裝置
유기관도%재역한접%안전성%수복장치
oil and gas pipeline%in-service welding%safety%repair device
根据油气管道在役焊接修复的两种常用修复方法，分析出影响在役焊接修复安全性的主要因素是烧穿和氢致开裂，并设计出一种油气管道在役焊接修复装置，采用管道内油气压等于密闭空间内 CO2气压＋焊接产生压力的创新方法，有效降低焊缝中含氢量，成功解决了影响油气管道在役焊接修复安全性的技术难题。
根據油氣管道在役銲接脩複的兩種常用脩複方法，分析齣影響在役銲接脩複安全性的主要因素是燒穿和氫緻開裂，併設計齣一種油氣管道在役銲接脩複裝置，採用管道內油氣壓等于密閉空間內 CO2氣壓＋銲接產生壓力的創新方法，有效降低銲縫中含氫量，成功解決瞭影響油氣管道在役銲接脩複安全性的技術難題。
근거유기관도재역한접수복적량충상용수복방법，분석출영향재역한접수복안전성적주요인소시소천화경치개렬，병설계출일충유기관도재역한접수복장치，채용관도내유기압등우밀폐공간내 CO2기압＋한접산생압력적창신방법，유효강저한봉중함경량，성공해결료영향유기관도재역한접수복안전성적기술난제。
Based on two common in-service welding repair methods for oil and gas pipelines,major factors endangering in-service welding were found out,including burning and hydrogen induced cracking. Besides,a new in-service welding repair device for oil and gas pipelines was designed. This device adopts an innovative method based on the pipeline oil pres-sure equaling to the atmospheric pressure of CO2 within a confined space+the pressure generated by welding. The device has been proved as effectively reducing the amount of hydrogen in welds and successfully addressing the technical problem of in-service welding safety.
