Short-distance pipeline inner wall bionic groove surface machining device and method

Abstract

The invention provides a short-distance pipeline inner wall bionic groove surface machining device and method. The device comprises a supporting table with a supporting seat, an actuating mechanism for providing driving force, a traveling mechanism used for being supported on the inner wall face of a pipeline, a machining mechanism used for machining bionic grooves in the inner wall of the to-be-machined pipeline, and a controller. The actuating mechanism is installed on the supporting table. The traveling mechanism is connected with the movable end of the actuating mechanism. The machining mechanism is fixedly connected with the traveling mechanism. Both the actuating mechanism and the machining mechanism are electrically connected with corresponding control ends of the controller. The method comprises the steps that the pipeline inner wall bionic groove surface machining device is arranged in the pipeline, the actuating mechanism drives the traveling mechanism and the machining mechanism to move to corresponding positions, and then the inner wall of the pipeline is machined. The short-distance pipeline inner wall bionic groove surface machining device and method have the beneficial effects that the operation quality of the machining device is improved, the precision is high, and different tools can be installed specific to different resistance reduction structures so as to complete machining of the corresponding resistance reduction structures.

Description

technical field [0001] The invention relates to a device for processing the surface of a bionic groove on the inner wall of a short-distance pipeline and a processing method thereof. Background technique [0002] With the rapid development of the national economy, the pipeline transportation volume of oil and natural gas and other fuels is increasing day by day. A key problem in the pipeline transportation process is the existence of large transportation resistance. When the fluid flows in the pipeline, the turbulent pulsation of the boundary layer is the direct cause of the transport resistance. The bionic drag-reducing surface imitates the surface drag-reducing structure obtained by biological evolution, which can reduce the turbulent pulsation of the boundary layer, thereby reducing the oil and gas flow. Conveying resistance. At present, most oil and gas transmission pipelines have not applied drag reduction technology, and the drag reduction technology adopted by a few ...

AI Technical Summary

Problems solved by technology

Drag reduction by drag reducer is also one of the current research methods for pipeline drag reduction technology. Compared with pipeline coating drag reduction, the process is simple, but the drag reducer used in it consumes quickly and needs to be replenished continuously, especially for long-term transportation. For pipelines, the economic benefits are not obvious due to the need for a large amount of drag reducing agent, and the addition of drag reducing agent injection devices in the oil delivery system increases the operation volume and failure rate of the entire system, which is not conducive to daily operations management

On the other hand, most drag reducers are toxic, poorly stable, and difficult to transport, which restricts the engineering feasibility of this method

[0004] Therefore, there is no good drag reduction technology applied to the pipeline transportation of oil, natural gas and other fuels

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