本文關(guān)鍵詞：鉗位式排流器的原理及對陰極保護(hù)的影響　出處：《油氣儲運》2017年08期 　論文類型：期刊論文

  更多相關(guān)文章： 鉗位式排流器 交流干擾 陰極保護(hù)

【摘要】：鉗位式排流器在管道交流干擾防護(hù)中應(yīng)用廣泛,但目前管道業(yè)界少見對鉗位式排流器工作原理的討論,在其應(yīng)用中存在諸多誤解。基于鉗位式排流器內(nèi)部結(jié)構(gòu),結(jié)合現(xiàn)場檢測數(shù)據(jù),探討了鉗位式排流器對管地交流電壓的緩解,及其對陰極保護(hù)通電電位和極化的影響,分析了鉗位式排流中地床材料與管道電位差對管道通電電位的影響,澄清了目前業(yè)界對該設(shè)備的誤解,鉗位式排流器不具備隔斷直流的功能,其對陰極保護(hù)的補(bǔ)充作用有待進(jìn)一步研究確認(rèn)。采用鉗位式排流器后,管道通電電位可能會出現(xiàn)負(fù)向偏移、正向偏移或不偏移3種情況,而偏移方向和程度與排流地床/管道之間的電位差密切相關(guān)。
[Abstract]:Clamped drain is widely used in pipeline AC interference protection, but there are few discussions on the working principle of clamped drain in pipeline industry at present, and there are many misunderstandings in its application, based on the internal structure of clamped drain. Based on the field test data, the mitigation of the clamped drain to the AC voltage of the tube and the influence on the current potential and polarization of the cathodic protection are discussed. The influence of the potential difference between the ground bed material and the pipeline on the pipeline electrification potential in the clamped drainage is analyzed. The misunderstanding of the equipment in the industry is clarified. The clamped drain does not have the function of separating the DC. The complementary role of cathodic protection needs to be further studied and confirmed. After the use of clamped drain, there may be negative migration, positive migration or no migration of pipeline electrification potential. The deviation direction and degree are closely related to the potential difference between the drainage bed and pipeline.
【作者單位】： 北京凱斯托普科技有限公司;中國石油天然氣管道局工程有限公司東南亞(東亞、南亞)項目經(jīng)理部;北京科技大學(xué)新材料技術(shù)研究院;
【基金】：國家自然科學(xué)基金資助項目“地鐵雜散電流干擾下埋地管道材料的腐蝕機(jī)理研究”,51401017
【分類號】：TE973
【正文快照】： 排流地床與排流器聯(lián)合使用是目前通行的管道交流干擾防護(hù)措施。排流地床的接地電阻是決定交流干擾緩解效果的主要因素。使用排流器的目的是隔直通交,理想的排流器不會影響交流干擾緩解效果,也不會對管道的陰極保護(hù)造成負(fù)面影響[1]。鉗位式排流器是目前在中國應(yīng)用較多的一種排，

本文編號：1383934