To ensure that the hydraulic oil to keep the turbulent state but also consider the pressure loss of the hydraulic oil in the pipeline in the pipeline, the output pressure of the pump must be greater than the loss of the hydraulic oil to keep the turbulent pressure in the pipeline, the pressure loss of P type (4) calculation. The output pressure of the pump is adjusted by the overflow valve of the system, so the pressure of the relief valve setting must be greater than the pressure of the system loss, otherwise the flow speed of the system can not meet the requirements of turbulence.
In p=lDV2 (4), l is the length of hydraulic pipe; P is hydraulic medium density.
2 the flushing scheme of each test system of the hydraulic station of Wuhan Iron and steel works. The solid wall particles are attached to the pipe wall of the new or modified hydraulic system. The solid particles must be removed by flushing so as not to pollute the hydraulic system. According to the above hydraulic flushing principle, can the pollutants in the pipeline be removed effectively, so that the cleanliness level of the hydraulic system reaches the required level, and the flow, pressure and temperature during the flushing are the key.