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一、课题提出石油部胜利油田油建一部机具研究所、化工部化工机械研究院“一步法”泡沫黄夹克作业线,在连续化生产时,需将一根根钢管用接头联接后,再进行防腐保温。然后,再将防腐保温层从接头处切开,卸下接头,分成单根防腐管。由于管子防腐后被泡沫黄夹克层所包复,无法确定接头的位置。因此需要研制一种可以探测管子接头的装置,以便修切卸下接头。二、方案的确定要探测泡沫黄夹克层内的接头位置,有许多方法。1.差频原理。即利用管子接头处,选用非磁性材料和金属铁管(铁磁性材料)对谐振槽路的频率产生不同影响进行探测。
First, the subject proposed Oil Shengli Oilfield Construction Machinery Research Institute, Ministry of Chemical Industry Institute of Chemical Machinery “one-step” bubble yellow jacket operation line, in the continuous production, the need to be a root pipe joints connected, and then Preservative insulation. Then, then cut the insulation from the joints, remove the joints, divided into a single anti-corrosion pipe. Due to the pipe was embalmed foam yellow jacket layer, can not determine the location of the connector. Therefore, it is necessary to develop a device that can detect the pipe joint, so as to trim and remove the joint. Second, the program to determine the bubble yellow jacket layer to detect the location of joints, there are many ways. 1. Difference frequency principle. The use of pipe joints, the choice of non-magnetic materials and metal pipe (ferromagnetic material) on the resonant tank frequency have different effects for detection.