Construction method of prefabricating and washing oil pipe

Abstract

The invention relates to a construction method of prefabricating and washing an oil pipe. The construction method comprises the following construction steps of: 1) controlling a pipeline blanking process flow; 2) designing and configuring a washing device; 3) prefabricating a pipeline for sectional washing; and 4) then washing for determination after configuration and short connection of an oil path. The construction method is economic and reasonable to use, the construction cost is reduced, and the washing efficiency and washing quality of similar pipelines are improved. Through the adoption of the method and the device, the problems that pipelines with larger diameters need longer washing time and the washing quality is difficult to observe visually can be solved, the technical application is safe, reliable, simple and convenient, and the technique of large-diameter pipeline washing is also expanded while the washing time is saved.

Description

technical field [0001] The invention belongs to a pipeline construction method, in particular to a construction method for oil pipeline prefabrication and flushing. Background technique [0002] At present, the construction of large-diameter hydraulic lubricating oil pipelines is often encountered in engineering construction. The common point of these oil pipelines is that if the construction process is not carefully arranged during the production process and the quality control of the process is not strict, the oil pipeline will be damaged. The lengthening of the flushing time of the road, and even the fact that the flushing quality does not meet the requirements, cause the dregs in the pipeline to pollute or damage the hydraulic online equipment. The conventional engineering method is to prepare the pipeline first, and then flush it directly with the flushing pump after combination. The disadvantage of this method is: in order to ensure the cleanliness of the pipeline when...

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Problems solved by technology

[0002] At present, the construction of large-diameter hydraulic lubricating oil pipelines is often encountered in engineering construction. The common point of these oil pipelines is that if the construction process is not carefully arranged during the production process and the quality control of the process is not strict, the oil pipeline will be damaged. The lengthening of the road flushing time, and even the fact that the flushing quality does not meet the requirements may cause the dregs in the pipeline to pollute or damage the hydraulic online equipment.

The conventional engineering method is to prepare the pipeline first, and then flush it directly with the flushing pump after combination. The disadvantage of this method is: in order to ensure the cleanliness of the pipeline when flushing the oil pipe with a large diameter, there must be a medium that meets the flushing requirements in the pipeline. The flow and pressure that form the flushing turbulent flow, but the existing molding equipment of the flushing pump that can meet this kind of flow is not available. The usual engineering practice is to combine the pipeline sections to form a circuit or prolong the flushing time of the overall pipeline to meet the cleanliness of the pipeline. flushing requirements

Not only the labor cost is high, but also the flushing quality inside the pipeline cannot be visually observed, there is a risk of quality problems, the construction efficiency of the project is not high, the construction period is prolonged, and the construction cost is increased

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