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首页> 外国专利> COMBINED METHOD OF CLEANING INTERNAL SURFACE OF PROCESS PIPELINES OF OIL TRANSFER STATIONS WHEN PREPARING FOR PUMPING OF LIGHT OIL PRODUCTS

COMBINED METHOD OF CLEANING INTERNAL SURFACE OF PROCESS PIPELINES OF OIL TRANSFER STATIONS WHEN PREPARING FOR PUMPING OF LIGHT OIL PRODUCTS

机译：制备轻质油品时清理输油站过程管道内表面的组合方法

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FIELD: transportation.;SUBSTANCE: invention relates to pipeline transport, namely, to methods of cleaning process pipelines inner surface. Method comprises releasing process pipelines from oil and/or oil products, separating each of process pipelines into sections for hydrodynamic cleaning and sections for chemical cleaning, simultaneous hydrodynamic and chemical cleaning of separated sections of process pipelines. During hydrodynamic cleaning of the pipeline section, the inner surface is preliminary washed with a water jet under pressure from 1 to 20 MPa, flushing of inner surface with water jet under pressure from 20 to 170 MPa, internal surface cleaning with water jet by pressure from 1 to 20 MPa, control of cleaning quality by means of visual inspection module. Inner volume of looped section of process pipeline is filled with light oil product. Light oil product is conditioned in static mode with its subsequent circulation along loop section to achieve constant values of controlled quality indices of oil product. During chemical cleaning, the asphalt, resin, and paraffin deposits solvent is filled with an inner volume of the looped section of the process pipeline. Asphalt, resin, and paraffin deposits solvent is maintained in static mode with its subsequent circulation along process pipeline, removal of asphalt, resin, and paraffin deposits solvent and cleaning products. Filling of inner volume of looped section with adsorption light oil product, maintenance of adsorption light oil product in static mode with provision of its subsequent circulation along loop section, removal from the looped section of the adsorption light oil product, filling the inner volume of the looped section with the control light oil product, holding of light oil product in static mode with provision of its subsequent circulation along loop section of process pipeline till achievement of constant values of controlled indices of oil product quality.;EFFECT: technical result is improved quality of cleaning internal surface of process pipelines of oil transfer stations due to rational combination of hydrodynamic and chemical cleaning at different sections of pipeline.;12 cl, 8 dwg, 2 tbl
机译：管道内表面清洁方法技术领域本发明涉及管道运输，即涉及清洁管道内表面的方法。该方法包括从油和/或油产品中释放工艺管线，将每个工艺管线分成用于流体动力清洗的部分和用于化学清洗的部分，同时分离工艺管线的各个部分的流体动力和化学清洗。在对管道部分进行流体动力清洗过程中，先在1至20 MPa的压力下用水喷射清洗内表面，再在20至170 MPa的压力下用水喷射冲洗内表面，再通过压力下的水喷射清洗内表面。 1至20 MPa，通过目测模块控制清洁质量。过程管道的环形部分的内部容积充满轻油产品。轻油产品采用静态模式进行调节，随后沿环路部分循环以达到恒定的受控质量指数。在化学清洁过程中，沥青，树脂和石蜡沉积的溶剂被过程管道的环形部分的内部容积充满。沥青，树脂和石蜡沉积的溶剂保持静态，随后沿工艺管道循环，除去沥青，树脂和石蜡沉积的溶剂和清洁产品。用吸附轻油产品填充回路部分的内部体积，保持吸附轻油产品处于静态模式，并使其随后沿回路部分循环，将吸附轻油产品从回路部分中移出，填充吸附轻油产品的内部体积带有控制轻质油产品的环形段，将静态轻质油保持在静态模式下，并随后沿过程管道的环形段进行循环，直到达到恒定的油质质量指标受控值为止;效果：技术成果可提高质量流体动力学和化学清洗在管道不同部位的合理结合，对输油站工艺管道内表面的清洗效果; 12 cl，8 dwg，2 tbl

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