A full-bore pipeline type sand removal device

Abstract

The invention discloses a full-diameter pipeline type sand removal device. It includes a flow direction adjustment inlet, a swirl sand removal section and a flow direction adjustment outlet. A baffle is set between the flow direction adjustment inlet and the swirl sand removal section and between the swirl sand removal section and the flow direction adjustment outlet, and the flow direction adjustment inlet is the flow direction. The structure in which the inner cylinder of the inlet is adjusted and the outer cylinder of the inlet of the flow direction adjustment is nested with each other. The inlet end of the annular space formed between the inner cylinders is provided with a double helical pipe, and the bottom of the outer cylinder of the swirling sand removal section downstream of the double helical pipe is provided with evenly arranged sand discharge holes. In the case of pipes, the separator is a full-bore backing plate. When the technology of the present invention is used, the installation method of the sand removal device is the same as that of the ordinary valve, which can be installed horizontally or vertically, does not occupy additional space, does not require auxiliary facilities, and has high separation efficiency, which can efficiently separate solid impurities in oil and gas at the same time. , The process of cleaning the sand does not affect the normal transportation of the pipeline.

Description

technical field [0001] The invention belongs to the technical field of centrifugal separation and flow assurance, and relates to a full-bore pipeline type sand removal device. Background technique [0002] The characteristics of natural gas determine that natural gas pipeline transportation is more economical and reliable than other transportation methods, and is currently the main method of onshore natural gas transportation. The main sources of liquid and solid impurities in the natural gas transmission system include: condensate oil, condensate water, cuttings and dust brought downhole during gas production; dirt and residues left during pipeline construction; iron filings and corrosion products in the pipeline . [0003] The movement of dust particles such as sand and rust with the high-speed airflow will cause strong abrasion to the inner wall of the pipeline. As the main power equipment in the gas transmission process, the compressor has strict requirements on the con...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a full-diameter pipeline type sand removal device for the disadvantages of complicated installation and poor separation effect in the prior art. Using the technology of the present invention, solid impurities in natural gas can be efficiently separated, and at the same time, it is convenient for pigging during the pigging process. through the

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