| 摘要 |
FIELD: methods of reduction of hydraulic load on pipe line; transportation of oil by pipe lines. SUBSTANCE: liquid is fed to upper section 2 of pipe line 1 at flow rate kept within definite range and gas is blown to pipe line 1 through branch pipe; as a result, flow of liquid at incomplete filling of section of pipe line 1 is created. At abrupt braking of liquid flow in lower portion of pipe line 1, pressure in liquid flow rises abruptly and pressure wave is propagated as far as zone of incomplete filling of section. When gas is introduced in pipe line 1, flow of liquid at incomplete filling of section is created due to reduction of hydraulic resistance in lower section 3 of pipe line 3, thus reducing the hydrostatic and dynamic loads. EFFECT: reduction of hydraulic impact and its duration due to creating section of flow at incomplete filling; reduction of static pressure in pipe line. 2 cl, 1 dwg |
