초록 ▼

This invention provides a method for controlling slurry pump performance to better operate the pump and increase system operating stability. Such control is achieved by determining the instantaneous pressure produced by the pump (and the internal specific gravity that goes along with that) and using

This invention provides a method for controlling slurry pump performance to better operate the pump and increase system operating stability. Such control is achieved by determining the instantaneous pressure produced by the pump (and the internal specific gravity that goes along with that) and using this pressure value along with the overall total pipeline resistance to determine the optimal instantaneous operating speed of the pump. When the pump is controlled in this manner, the adverse cavitation, wear, and other effects on the pump and pipeline associated with unstable system operation can be reduced or avoided.

대표청구항 ▼

[ What is claimed is:] [1.] A method for controlling the operation of a slurry pumping system that includes a slurry pump, a motor in driving relationship with the pump, and a slurry pipeline system for receiving and directing the slurry pumped by the pump from a position in the pipeline adjacent th

[ What is claimed is:] [1.] A method for controlling the operation of a slurry pumping system that includes a slurry pump, a motor in driving relationship with the pump, and a slurry pipeline system for receiving and directing the slurry pumped by the pump from a position in the pipeline adjacent the pump to a position in the pipeline remote from the pump, said method comprising:determining the instantaneous output pressure of the slurry at the position adjacent the pump at a predetermined time;determining the instantaneous pressure of the slurry in the pipeline at the remote position at the same predetermined time;comparing the determined instantaneous pressures of the slurry at both positions in the pipeline; andvarying the performance of the pump to keep the pressure of the slurry at the position adjacent the pump in substantially stable equilibrium with the pressure of the slurry at the remote position in the pipeline.