Polymer oil pipe joint with axial conduction of the circumferential key on the end face of the spigot to realize static electricity removal

Abstract

A polymer oil-conveying pipe connector capable of eliminating electrostatic through axial connection of circumferential keys on rabbet end faces is characterized in that the polymer oil-conveying pipe connector comprises a polymer pipe body (1); an inward-protruding ring body (2) is arranged inside the polymer pipe body (1); a conducting ring (3) is bound to the internal surface of the ring body (2); the end faces of the two sides of the ring body (2) are flush with the end faces of the two sides of the conducting ring (3); the circumferential keys (4) are arranged on the end faces of the two sides of the conducting ring (3); and an included angle formed between the two end points of the circumferential keys (4) in the length direction and the circle center of the inner wall of the pipe connector is no smaller than 20 degrees and no larger than 60 degrees, grooves (5) matched with the circumferential keys (4) are machined in the opposite positions of the end faces of a polymer oil-conveying pipe needing connection, and the circumferential keys (4) are electrically connected with the grooves (5) in a matched mode so as to achieve connection of a conducting layer after connection of the polymer oil-delivery pipe. The polymer oil-conveying pipe connector is simple in structure, and oil conveying resistance and electrostatic accumulation are avoided.

Description

technical field [0001] The invention belongs to the technical field of polymer oil pipeline connection, and relates to a polymer oil pipeline joint, in particular to a polymer oil pipeline joint that can realize electrostatic conduction, specifically a kind of joint that achieves static electricity through the axial conduction of the circumferential key on the end face of the spigot. Drained polymer fuel line fittings. Background technique [0002] Polymer oil pipeline has become the mainstream product in the oil pipeline market because of its light weight, corrosion resistance, small friction coefficient, convenient installation and maintenance, and easy leak detection, and the market prospect of this product is very broad. However, during the oil transportation process of the polymer oil pipeline, the inner wall of the polymer oil pipeline will generate electrostatic charges during the process of friction and impact. If the electric charge accumulates to a certain amount ...

AI Technical Summary

Problems solved by technology

However, this solution has the following deficiencies: First, although this solution achieves straight pipe connection and conduction, it increases the conductive sleeve, which will inevitably increase the cost

Second, compared with the smooth tube wall, the inner wall of the conductive sleeve and the joint form resistance to oil delivery, and impurities will also be deposited here. Long-term use will cause problems such as a decrease in the reliability of electrostatic connection

Third, this solution is not suitable for connection at a certain angle, or even if it can be used for corner joints through the deformation of the intermediate sleeve, there will be problems in its formability, engineering site adaptability and conduction reliability to varying degrees

[0004] It can be seen that there is currently no polymer oil pipeline joint, especially an elbow joint, that can realize static electricity removal, which limits the wide application of polymer oil pipelines in the field of petroleum transportation to a certain extent.

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