Transportation process for transporting chemical fluid by adopting long-distance pipeline

• Main Authors: GU KAIFENG, ZHAO WEIBIN, LI ZHIYONG
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; PIPE-LINE SYSTEMS; PIPE-LINES; STORING OF DISTRIBUTING GASES OR LIQUIDS; WEAPONS

The invention provides a conveying process for conveying chemical fluid through a long-distance pipeline, the chemical fluid is viscous fluid or a solution containing easily-precipitated solids or suspended solids, and the conveying process comprises the steps that 1, the pipeline compensation amount is controlled, specifically, a plurality of U-shaped bends are arranged at intervals along the whole conveying pipeline to absorb the deformation amount caused by expansion or contraction of the pipeline, and the pipeline compensation amount is controlled; controlling the total compensation amount according to delta L = alpha * L * delta T; alpha is the thermal expansion coefficient of the pipeline, L is the length of the pipeline, delta T is the seasonal temperature difference of the corresponding geographic area, and delta L is the pipeline deformation under the conditions of the length L and the temperature difference delta T; 2, flow velocity control: arranging a plurality of lift pumps in a conveying line an