Special protection device for flange and union

Abstract

The invention discloses a special protection device for a flange and a union. The device comprises a protection shell, the protection shell comprises a shell body and a shell cover, the shell body andthe shell cover are detachably connected in a butt mode to form a cylindrical body, a containing cavity for containing the flange or the union is arranged in the cylindrical body, the two ends of thecylindrical body are provided with pipe port portions in sleeved connection with a pipeline, the upper portion of the shell cover is provided with an overflow port, the lower portion of the shell body is provided with a liquid guide port, and the liquid guide port is connected with a liquid storage pipe. The special protection device is simple in structure, multifunctional, good in economical efficiency, high in practicality, capable of being used and popularized to high pressure pipeline projects which apply flange and union connection in offshore and onshore petroleum drilling machines, workover rigs and the like.

Description

technical field [0001] The invention relates to a pipeline protection device, in particular to a special protection device for flanges and unions. Background technique [0002] At present, the joints of flanges and hammer unions in the high-pressure pipelines of oil drilling rigs, due to the following reasons, pipeline liquid puncture failures will occur: [0003] 1. The size deviation of the pipe installation at the joint between the flange and the union leads to uneven force on the joint and poor sealing; [0004] 2. The long-term vibration of the pipeline of the oil drilling rig causes the seal between the flange and the union to loosen; [0005] 3. The product quality of flange and union is unqualified. [0006] Since the design pressure of the high-pressure pipeline of the oil drilling rig is as high as 10,000 psi, there is currently no protective measure for the connection between the pipeline flange and the hammer union. If there is a liquid puncture failure at the ...

AI Technical Summary

Problems solved by technology

[0003] 1. The size deviation of the pipe installation at the joint between the flange and the union leads to uneven force on the joint and poor sealing;

[0004] 2. The long-term vibration of the pipeline of the oil drilling rig causes the seal between the flange and the union to loosen;

[0005] 3. The product quality of flange and union is unqualified

[0006] Since the design pressure of the high-pressure pipeline of the oil drilling rig is as high as 10,000 psi, there is currently no protective measure for the connection between the pipeline flange and the hammer union. If a liquid puncture failure occurs at the connection, it will be difficult to deal with and endanger the personal safety of the on-site workers. risk

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