矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2014年
3期
88-91
,共4页
超声波%负压%瓦斯抽采%管道%检漏技术
超聲波%負壓%瓦斯抽採%管道%檢漏技術
초성파%부압%와사추채%관도%검루기술
ultrasonic wave%negative pressure%gas extraction%pipeline%leak detection technology
针对井下瓦斯抽采管道的检漏问题,提出了一种基于超声波检测的瓦斯抽采管道检漏技术,并研发了相应的便携式检漏设备。通过在实验室进行管道泄漏模拟实验,得到了泄漏孔洞处产生的声波频率与测定距离和管道负压之间的数学关系模型,并验证了超声波检漏仪的检漏准确率达100%,检测范围达0.2~1.5 m,满足工业生产的需要。
針對井下瓦斯抽採管道的檢漏問題,提齣瞭一種基于超聲波檢測的瓦斯抽採管道檢漏技術,併研髮瞭相應的便攜式檢漏設備。通過在實驗室進行管道洩漏模擬實驗,得到瞭洩漏孔洞處產生的聲波頻率與測定距離和管道負壓之間的數學關繫模型,併驗證瞭超聲波檢漏儀的檢漏準確率達100%,檢測範圍達0.2~1.5 m,滿足工業生產的需要。
침대정하와사추채관도적검루문제,제출료일충기우초성파검측적와사추채관도검루기술,병연발료상응적편휴식검루설비。통과재실험실진행관도설루모의실험,득도료설루공동처산생적성파빈솔여측정거리화관도부압지간적수학관계모형,병험증료초성파검루의적검루준학솔체100%,검측범위체0.2~1.5 m,만족공업생산적수요。
To counter the problem of the leakage detection of gas drainage pipelines in coal mines, a leakage detection technology for gas drainage pipelines based on ultrasonic inspection was proposed and a corresponding portable leakage detection device was developed. Through the simulation test of the pipeline leakage in the laboratory, a mathematical relation models between the acoustic frequency at the leak holes and measurement distance and the negative pressure of the pipeline was set up. The verification indicated that the accuracy of the ultrasonic leakage detector was up to 100% and its detection range was from 0.2 m to 1. 5 m, which can meet the requirements of the industrial production.
