| 摘要 |
A piston pump installation, and method of operation the same, for conveying sludge-type materials and granulated and solid materials with added fluid, comprising one or more, preferably two, cylinders arranged adjacent and parallel to one another with axially reciprocating pistons therein. Each cylinder having a valve provided at its front end, and a drive and control device located at the rear, opposite end. The valve located at the front of each cylinder is structured as a slide valve or so that it can turn and is connected to a suction main on one side and to a delivery pipe on the other side, the suction main and the delivery pipe preferably being perpendicular to the longitudinal axis of the cylinder. Each valve having a valve body with an inlet orifice and a cutting edge as well as an overlapping surface. The inlet orifice in the valve body being designed as a flow connection between the suction main and the cylinder as well as between the cylinder and the delivery pipe. At the rear end of the cylinders together with the drive and control device, a pressurized buffer vessel for a barrier medium is provided for balancing the pressure of the pump piston. |
