A corrosion inhibitor film coating device and film coating process for natural gas gathering and transportation pipelines

Abstract

The invention discloses a corrosion inhibitor coating device and a coating process for natural gas gathering and transportation pipelines, which belong to the technical field of chemical industry. The key points of the technical scheme include a pipeline and a power box, and the right side of the inner wall of the power box is fixedly connected with a double-axis motor. The right output shaft of the biaxial motor is fixedly connected with a first rotating rod, the first rotating rod passes through the power box and extends to the outside of the power box, the right side of the first rotating rod is fixedly connected with a fixed plate, The surface of the fixed plate is fixedly connected with a ring-shaped telescopic mechanism, and the side of the telescopic mechanism away from the fixed plate is fixedly connected with a smearing mechanism in contact with the inner wall of the pipeline. Axis motor, double-axis motor drives the traveling mechanism to move through the transmission mechanism, so that the traveling mechanism can drive the whole device to move at a uniform speed in the pipeline, preventing the uneven coating film thickness caused by the uneven moving speed of the device.

Description

technical field [0001] The invention relates to the technical field of chemical industry, more specifically, to a corrosion inhibitor film coating device and film coating process for natural gas gathering and transportation pipelines. Background technique [0002] In the natural gas industry, the function of the wet gas gathering and transportation pipeline is to transport the unseparated and purified natural gas in the gas gathering station to the gas treatment plant for further processing. During the wet gas transportation process, there will be heat exchange between the pipeline and the external environment. When heat conduction makes the pipe wall temperature lower than the water vapor dew point, some heavy components will condense out, resulting in effusion. For acid gas pipelines containing hydrogen sulfide and carbon dioxide, under the condition of effusion, it will cause severe electrochemical damage to the pipeline. Corrosion, resulting in thinning or even perforati...

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Problems solved by technology

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a corrosion inhibitor coating device for natural gas gathering and transportation pipelines, which has the advantage that it can make the corrosion inhibitor coating device for natural gas gathering and transportation pipelines advance at a constant speed during operation, preventing The uneven thickness of the coating film caused by the uneven moving speed of the corrosion inhibitor coating device for natural gas gathering and transportation pipelines

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