A full-bore pipeline type desander

Abstract

The invention discloses a full-diameter pipeline type desander. It includes inlet tee pipe, full-bore pigging valve, spiral desanding section, flow direction adjustment outlet, bypass connection pipe, full-bore ball valve and sand storage chamber. The inlet tee pipe is composed of three-way main pipe and three-way branch pipe. The sand removal section is formed by nesting the inner cylinder of the spiral sand removal section and the outer cylinder of the spiral sand removal section. The flow direction adjustment outlet is formed by nesting the flow direction adjustment inner cylinder and the flow direction adjustment outer cylinder. Connected, the inner cylinder of the spiral sand removal section is connected with the flow direction adjustment inner cylinder, the outer cylinder of the spiral sand removal section is connected with the flow direction adjustment outer cylinder, the bypass connection pipe is connected with the tee branch pipe and the branch pipe inlet, and the outer cylinder of the cyclone sand removal section is connected with the cyclone flow removal pipe. Spiral blades are arranged in the annular space between the inner cylinders of the sand section, and a row of sand discharge outlets are provided at the bottom of the outer cylinder of the swirling flow desand removal section under the spiral blades, and the sand discharge outlets are used as openings for solid and liquid impurities to enter the sand storage chamber. The invention can effectively separate the solid impurities in the oil and gas, and at the same time, the normal transportation of the pipeline is not affected in the sand cleaning process.

Description

technical field [0001] The invention belongs to the technical field of centrifugal separation and flow guarantee, and relates to a full-diameter pipeline type desander. Background technique [0002] The characteristics of natural gas determine that natural gas pipeline transportation is more economical and reliable than other transportation methods, and it 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, and cuttings dust brought downhole during gas production; dirt and residue left during pipeline construction; iron filings and corrosion products in the pipeline . [0003] Dust particles such as sand and rust move with the high-speed air flow, which 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 content of ...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a full-bore pipeline type desander 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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