Pipe cleaning device for gas long conveying pipeline

Abstract

The invention discloses a pipe cleaning device for a gas long conveying pipeline, and belongs to the field of natural gas collecting and conveying pipelines. The pipe cleaning device comprises a hollow framework, a blowing nozzle, a front guide scraping assembly, a rear guide scraping assembly, a plurality of branch pipes and a plurality of venturi suction pipes, wherein the blowing nozzle is arranged at the front end of the hollow framework, a plurality of flow passing holes are formed in the rear end of the hollow framework, the middle of the hollow framework is reduced in diameter, the front guide scraping assembly and the rear guide scraping assembly are arranged on the front portion and the rear portion of the hollow framework respectively in a sleeving mode, the rear ends of the branch pipes are fixed on the hollow framework and communicate with the rear end of the rear guide scraping assembly, the front ends of the branch pipes extend to the rear end of the front guide scrapingassembly and are bent outwards, the front ends of the venturi suction pipes communicate with the middle of the hollow framework, the rear ends of the venturi suction pipes extend to the front end of the rear guide scraping assembly and are bent outwards, and the branch pipes and the venturi suction pipes are uniformly distributed in the circumferential direction of the hollow framework at intervals. The pipe cleaning device has the advantages that blowing and sucking functions can be realized, the cleaning efficiency is high, and clamping blockage of the pipe cleaning device is avoided.

Description

technical field [0001] The invention relates to the field of natural gas gathering and transportation pipelines, in particular to a pig for long-distance gas pipelines. Background technique [0002] With the long-term operation of long-distance gas pipelines such as natural gas, impurities such as dirt, fluid, dust, and particles will inevitably accumulate in them, which will affect the commissioning, operation, daily maintenance and inspection of long-distance gas pipelines. The impurities in the long-distance gas pipeline can be cleaned by the pig, which provides a clean pipeline environment for its commissioning, daily maintenance and testing. Based on the above, it is necessary to provide a pig for long-distance gas pipelines. [0003] The related technology provides a pipe cleaner, which includes: a solid framework, two leather cups respectively fitted on the front and rear of the solid framework, and a plurality of wire brushes arranged between the two leather bowls. ...

AI Technical Summary

Problems solved by technology

[0005] In the pigging operation of the pig, as the amount of impurities pushed by the front end of the pig increases, the cup will be worn, resulting in poor pigging effect and even jamming of the pig

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