Natural gas gathering and transportation pipeline corrosion inhibitor coating device and process

Abstract

The invention discloses a natural gas gathering and transportation pipeline corrosion inhibitor coating device and process, and belongs to the technical field of chemical engineering. According to the technical scheme, the natural gas gathering and transportation pipeline corrosion inhibitor coating device is characterized by comprising a pipeline and a power box, the right side of the inner wall of the power box is fixedly connected with a double-shaft motor, and a right side output shaft of the double-shaft motor is fixedly connected with a first rotating rod; and the first rotating rod penetrates through the power box and extends to the outside of the power box, a fixing plate is fixedly connected to the right side of the first rotating rod, a telescopic mechanism which is annularly distributed is fixedly connected to the surface of the fixing plate, and a smearing mechanism making contact with the inner wall of the pipeline is fixedly connected to the side, away from the fixing plate, of the telescopic mechanism. According to the natural gas gathering and transportation pipeline corrosion inhibitor coating device, by arranging a transmission mechanism, a walking mechanism and the double-shaft motor, the double-shaft motor drives the walking mechanism to move through the transmission mechanism, so that the walking mechanism can drive the whole device to move at a constant speed in the pipeline, and the situation that the coating thickness is not uniform due to the fact that the moving speed of the device is not uniform is prevented.

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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