CAJ | 학술논문

高寒地区地埋输油管道冰堵的发生不仅影响输送效率,而且,堵塞点的定位与排除需要大量的人力物力,如何精确定位十分重要.提出了利用球形模型增强堵塞来产生突变的正负压波,利用具有良好消噪能力与时频局域特性的小波变换技术来进行压力波的突变检测,并通过实验验证取得了较高的定位精度,具有一定的先进性和实用性.
고한지구지매수유관도빙도적발생불부영향수송효솔,이차,도새점적정위여배제수요대량적인력물력,여하정학정위십분중요.제출료이용구형모형증강도새래산생돌변적정부압파,이용구유량호소조능력여시빈국역특성적소파변환기술래진행압력파적돌변검측,병통과실험험증취득료교고적정위정도,구유일정적선진성화실용성.
The occurrence of ice-block in buried pipeline in high cold area will not only affect the transport efficiency,but also need massive manpower and resources to deal with.The precise of localization is very important.The sphere model is proposed to enhance the block and to generate sudden positive and negative pressure wave.The mutation of pressure is detected through the technique of wavelet transform which has well denoising ability and property in time-frequency.High localization precision is achieved through experimental verification.This technology is advanced and useful.