Collecting and filtering device for removing impurities from submarine pipeline

Abstract

The invention discloses a collecting and filtering device for removing impurities from a submarine pipeline, which comprises a barrel, an inner cavity of the barrel is composed of a front filtering chamber and a rear filtering chamber, the front filtering chamber is provided with an inlet part and a collecting and filtering part, the collecting and filtering part is provided with a drawer type filter screen, an outlet is arranged on the side wall of the barrel, a barrel door is mounted on the outlet, an upper opening of the drawer type filter screen is in butt joint with a bottom opening of the inlet part, and a partition plate type filter screen is arranged between the inlet part and the filtering rear chamber; the rear filtering chamber is arranged on the periphery of the front filtering chamber, the top of the rear filtering chamber is connected with an outlet pipe, and a valve IV is arranged on the outlet pipe; and an inlet pipe is connected to the inlet part, a valve III is arranged on the inlet pipe, a communicating pipe is arranged between the inlet pipe and the outlet pipe, a valve I is arranged on the communicating pipe, and the communicating pipe is arranged on the side, away from the barrel, of the valve III and the valve IV. According to the invention, on-line filtration and collection of a large amount of impurities in the reaching process can be realized.

Description

technical field [0001] The invention relates to an impurity collecting and filtering device, in particular to a collecting and filtering device for removing impurities from submarine pipelines. Background technique [0002] As the service time of submarine pipelines increases, a certain amount of impurities often accumulate inside the pipelines. These impurities include residues from the pipeline construction period, rust formed inside the pipeline, impurities brought in when the pipeline is injected with oil, rust and wax produced during the operation of the pipeline, etc. Impurities inside the pipeline have great harm to filters, oil pumps, valves, flow meters, oil quality and pipeline inspection. [0003] In the case of a complex internal structure of the pipeline, during the process of pigging and internal inspection, more impurities will be removed with the equipment, which will easily cause blockage at the position of the ball collection tube, making it difficult to t...

AI Technical Summary

Problems solved by technology

[0003] In the case of a complex internal structure of the pipeline, during the process of pigging and internal inspection, more impurities will be removed with the equipment, which will easily cause blockage at the position of the ball collection tube, making it difficult to take out the pigging ball or detector, and the ball The cylinder cannot be opened, if it enters the downstream, it will have adverse effects on platform equipment and facilities

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