公开(公告)号：US20170182439A1

公开(公告)日：2017-06-29

申请号：US15392371

申请日：2016-12-28

Applicant: GRUNDFOS HOLDING A/S

Inventor： Dominik DOMINIAK ,  Rikke Eriksen GISSEL ,  Jacob Appelt Vibe SVENDSEN ,  Xing ZHENG ,  Jan Carøe AARESTRUP

IPC: B01D37/04 ,  B01D29/66 ,  B01D37/03

CPC classification number: B01D37/043 ,  B01D29/66 ,  B01D37/03 ,  B01D61/16 ,  B01D65/02 ,  B01D2311/04 ,  B01D2311/2642 ,  B01D2321/04 ,  B01D2321/20

Abstract: a filtering method, with which a fluid to be filtered is led through a filter (4), the filter (4) is back-flushed at regular time intervals and a pre-treatment agent is added to the fluid at the entry side of the filter. A process variable which describes the efficiency of the filtration is continuously computed during the filtration, and a metering quantity of the pre-treatment agent is reset on the basis of the values for the process variable or a characteristic values derived from this.

公开(公告)号：US20170232396A1

公开(公告)日：2017-08-17

申请号：US15503843

申请日：2015-08-11

Applicant: GRUNDFOS HOLDING A/S

Inventor： Dominik DOMINIAK ,  Jacob Appelt Vibe SVENDSEN ,  Christian RASMUSSEN ,  Rune HOEJSHOLT

IPC: B01D65/02 ,  C02F1/00

Abstract: A control method is provided for a filter system, which includes at least one filter element (2). The method includes continuously recording a total energy consumption (EG) during a filtration cycle (22) of the filter system. The total energy consumption (EG) includes at least of the energy consumption (EB) for a physical cleaning (24) and the energy consumption (EP) for the subsequent production cycle (23) up to a predefined, in particular current point in time. The method further includes computing a relative energy consumption (Erel) by way of division of the recorded total energy consumption (EG) by a net permeate volume (QN) which has been produced during the filtration cycle (22) up to the predefined point in time and starting a physical cleaning (24) in dependence on the relative energy consumption or of a characteristic value derived from this.