Polymer oil pipeline joint with radial key and axial conduction to realize static electricity removal

Abstract

The invention provides a polymer oil delivery pipe connector for achieving static electricity guiding and removing by communicating seam allowance end face radial keys in the axial direction. The polymer oil delivery pipe connector is characterized by comprising a polymer pipe body (1); an inward convex ring body (2) is arranged inside the polymer pipe body (1); the two end faces of the ring body (2) serve as seam allowance faces which abut against the ends of polymer oil delivery pipes to be connected; a conducting ring (3) is bonded to the inner surface of the ring body (2); the multiple radial keys (4) used for communicating conducting layers of the two polymer oil delivery pipes to be connected in the axial direction are arranged on the end faces of the two sides of the conducting ring (3); grooves (5) matched with the radial keys (4) in dimension are machined in the opposite positions of the end faces of the polymer oil delivery pipes to be connected; and through electrical connection generated by cooperation of the radial keys (4) and the grooves (5), the conducting layers communicate with each other after the polymer oil delivery pipes are connected. The polymer oil delivery pipe connector is simple in structure, and oil delivery resistance and accumulation of static electricity 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 radial key on the end face of a spigot for axial conduction. Polymer oil pipe joints for static electricity removal. 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 under the condition of poor electrical conductivity, ...

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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