Pump system

摘要

Pumping systems and methods for delivering a plurality of different pumpable materials serially at a location at substantially the same flow rate includes a plurality of diaphragm pumps, wherein each diaphragm pump has a first chamber for receiving a hydraulic fluid from a first and/or second hydraulic fluid source and a second chamber for receiving a material to be pumped from one of a plurality of pumpable material sources. A sensor is provided for detecting the pressure of the hydraulic fluid in each of the first chambers of the plurality of diaphragm pumps and is operable to activate the source of hydraulic fluid to ensure that the hydraulic fluid in each of the first chambers of the plurality of diaphragm pumps has an equivalent pressure.

主权项

1. A pumping system which delivers a plurality of different pumpable materials serially at a flow rate, wherein the system comprises:
a plurality of diaphragm pumps, wherein each diaphragm pump has a first chamber for receiving a hydraulic fluid from a first and/or a second hydraulic fluid source, a second chamber for receiving a respective one of the pumpable materials to be pumped from one of a plurality of different pumpable material sources, and a port that is connected to the second chamber; a plurality of outlets, wherein each outlet is connected to the port of a respective one of the diaphragm pumps; and a sensor for detecting the pressure of the hydraulic fluid in each of the first chambers of the plurality of diaphragm pumps, which sensor is operably connected to the first and/or second hydraulic fluid source such that the sensor can activate the first and/or second hydraulic fluid source to ensure that the hydraulic fluid in each of the first chambers of the plurality of diaphragm pumps have equivalent pressures at a time when delivery from one of the diaphragm pumps ceases and delivery from another commences, wherein the different pumpable materials have different viscosities and wherein the equivalent pressures are different such that the pumpable materials are delivered to the respective outlet at the flow rate.