Oil transportation pipeline static electricity eliminator

Abstract

The invention discloses an oil transportation pipeline static electricity eliminator which comprises a metal pipe, wherein both ends of the metal pipeline are connected with an oil transportation pipeline through a transition pipeline; a plurality of multirhombic electricity eliminating needles are axially arranged on the inner wall of the metal pipeline at intervals; and all rhombic edges of the multirhombic electricity eliminating needles form a blade point. Preferably, the multirhombic electricity eliminating needles are installed and fixed on the inner wall of the metal pipeline by an insulating base. Furthermore, the multirhombic electricity eliminating needles are three-rhombic electricity eliminating needles or four-rhombic electricity eliminating needles. Due to the adoption of the invention, electrostatic charges near the front of the needle points can be eliminated, static electricity between the needle points and the pipeline can be eliminated, therefore, the static electricity of oil transportation is controlled in a safety value. Meanwhile, the oil transportation pipeline static electricity eliminator has the advantages of simple structure, safe and reliable electricity elimination and long service life.

Description

technical field [0001] 本发明涉及静电消除装置,具体地指一种输油管道静电消除器。 Background technique [0002] 石油及石油产品是电的不良导体,在石油及石油产品的输送、过滤等过程中,由于油品层间的相互流动摩擦、涡流运动等现象的发生,尤其是在管道内的输送过程中,均不可避免地产生大量的静电电荷,严重时会由静电火花引起爆炸或火灾等安全事故。为了减少和预防因管道输送油品所引发的静电事故,目前采取的方法有金属外壳接地泄漏静电或加装管道静电消除器。 [0003] 但采用金属外壳接地泄漏静电时,只能将金属外壳上的静电导走,油品内的静电不能导走,且静电泄漏需要一定的时间,这样仍不能避免瞬间放电事故的发生。而加装管道静电消除器,如中国发明专利中,公告号为CN2585526Y的易燃液体管道静电消除器和公告号为CN2849430Y的管道式静电消除器,均是在金属外壳内放置一个绝缘管道。前者是将多个集流放电针纵向多排沿圆周均匀分布在金属外壳上,并穿过绝缘管壁插入绝缘管内,通过与地相连的针尖释放电荷来中和油品中的静电。这种装置虽然可以消除针尖前面附近的静电荷,但由于采用了绝缘管道,油品在流过时与管壁的摩擦更容易产生静电,同时管道内的油品冲击导致针尖磨损后,消电效果急剧下降,在一定程度上会加剧静电的产生。后者是将多个消电针安装在金属外壳上,并穿过绝缘管壁插入绝缘管内,其消电的原理也是通过与地相连的针尖释放电荷来中和油品中的静电。这种装置虽然也可以消除针尖前面附近的静电荷,但在针尖和导管之间的静电不能有效消除,而正是这部分油品与绝缘管道的摩擦会加剧静电的产生,同时也存在管道内油品冲击导致针尖磨损后,消电效果急剧下降的问题。因此,现有的静电消除装置大多不能有效地消除管道内输送油品的静电荷。 Contents of the invention [0004] 本发明的目的就是要克服现有技术所存在的不足,提供一种缓流高效的输油管道静电消除器,它能有效消除管道中油品的静电荷,使输送的油品静电在安全值以内。 [0005] 为实现上述目的,本发明所设计的输油管道静电消除器,包括金属管道,所述金属管道的两端通过过渡管道与输油管道相连,所述金属管道的内壁上沿轴向间隔设置有若干个多菱锥形消电针,所述多菱锥形消电针的各个菱边形成刀...

AI Technical Summary

Problems solved by technology

Although this device can also eliminate the static charge near the front of the needle tip, the static electricity between the needle tip and the catheter cannot be effectively eliminated, and it is the friction between this part of the oil and the insulating pipeline that will aggravate the generation of static electricity, and also exists in the pipeline. After the needle tip is worn out due to oil impact, the electricity dissipation effect drops sharply

Therefore, most of the existing static elimination devices cannot effectively eliminate the static charge of the oil transported in the pipeline.

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