Patent ID: 8986552
Filing Date: 2015-03-24
Classification: B01D

Abstract:
1. A filtration and monitoring system for online monitoring of a parameter in a fluid system, the filtration and monitoring system comprising: an online monitoring device configured to monitor a parameter of a sample portion of a fluid flowing through the fluid system; a filter block forming a filter block chamber therein and comprising a filter element; an inlet pipe providing fluid to the filter block chamber, said inlet pipe defining an inlet axis and further having an inlet valve located therein configured to shut off the flow of the fluid through said inlet pipe; an outlet pipe removing fluid from the filter block chamber, said outlet pipe defining an outlet axis; a filtered fluid conduit fluidically connecting the filter block with the online monitoring device to transport said sample portion of said fluid to said monitoring device, said filtered fluid conduit having a pressure accumulator located therein between said online monitoring device and said filter element, said pressure accumulator accumulating fluid therein; said inlet pipe, outlet pipe, and filter element configured such that said filter element is orientated substantially parallel to said inlet axis and said outlet axis to provide a cross flow filtration path for said fluid and defining a sample flow path wherein only said sample portion of said fluid flows through said filter element to said online monitoring device with the remainder of said fluid passing tangentially and not passing through said filter element thereby exiting said filter block chamber through said outlet pipe; wherein the outlet axis of the outlet pipe is offset from the inlet axis of the inlet pipe such that the fluid undergoes a change of direction while passing through the filter block chamber thereby causing turbulent flow within the filter block chamber to sweep particles off of said filter element; and wherein when said inlet valve in the inlet pipe is closed, the flow of fluid through the filter block stops, thereby resulting in a back-flushing flow of fluid from the pressure accumulator to the filter block chamber through the filter element, thereby dislodging filter cake accumulated on the chamber-side of the filter element so that said accumulated filter cake is removed through said outlet pipe.