SE9103608D0 - PROCEDURE AND FILTER UNIT FOR CLEANING A CIRCULATING LIQUID IN A CLOSED CIRCUIT - Google Patents

PROCEDURE AND FILTER UNIT FOR CLEANING A CIRCULATING LIQUID IN A CLOSED CIRCUIT

Info

Publication number
SE9103608D0
SE9103608D0 SE9103608A SE9103608A SE9103608D0 SE 9103608 D0 SE9103608 D0 SE 9103608D0 SE 9103608 A SE9103608 A SE 9103608A SE 9103608 A SE9103608 A SE 9103608A SE 9103608 D0 SE9103608 D0 SE 9103608D0
Authority
SE
Sweden
Prior art keywords
filter
liquid
circuit
contaminant
filter unit
Prior art date
Application number
SE9103608A
Other languages
Swedish (sv)
Other versions
SE502021C2 (en
SE9103608L (en
Inventor
T Lindh
Original Assignee
Handelsbolaget Prestations Pro
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Handelsbolaget Prestations Pro filed Critical Handelsbolaget Prestations Pro
Priority to SE9103608A priority Critical patent/SE502021C2/en
Publication of SE9103608D0 publication Critical patent/SE9103608D0/en
Priority to PCT/SE1992/000838 priority patent/WO1993010880A1/en
Priority to AU40285/93A priority patent/AU4028593A/en
Publication of SE9103608L publication Critical patent/SE9103608L/en
Publication of SE502021C2 publication Critical patent/SE502021C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • B01D37/025—Precoating the filter medium; Addition of filter aids to the liquid being filtered additives incorporated in the filter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Filtration Of Liquid (AREA)

Abstract

A method and a filter unit for cleaning a liquid which circulates in a closed circuit, such as a central heating circuit, from particulate contaminant material, such as magnetite particles, comprises introducing into the circuit liquid soluble chemicals which are active in suspending and agglomerating the contaminant particles, and filtering the circuit liquid with the aid of a filter cartridge whose smallest filter medium openings are larger than a substantial proportion of the contaminant particles. By limiting the flow rate of the liquid through the filter cartridge to a given maximum filter surface load, corresponding to a value at which at least a 70 % reduction of a standard contaminant consisting of kaolin clay Grade C, EEC International, is obtained across the filter, the filter capacity is utilized to a very high degree and favourable separation or extraction of the contaminants is achieved. The filter unit may include a rate of flow limiting means which functions to set the throughflow to a value which will provide the maximum filter surface load in question essentially independently of the pressure drop across the filter.
SE9103608A 1991-12-04 1991-12-04 Method and apparatus for purifying a circulating liquid in a circulating circuit SE502021C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9103608A SE502021C2 (en) 1991-12-04 1991-12-04 Method and apparatus for purifying a circulating liquid in a circulating circuit
PCT/SE1992/000838 WO1993010880A1 (en) 1991-12-04 1992-12-03 Method and filter unit for purification of a circulating liquid in a closed circuit
AU40285/93A AU4028593A (en) 1991-12-04 1992-12-03 Method and filter unit for purification of a circulating liquid in a closed circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9103608A SE502021C2 (en) 1991-12-04 1991-12-04 Method and apparatus for purifying a circulating liquid in a circulating circuit

Publications (3)

Publication Number Publication Date
SE9103608D0 true SE9103608D0 (en) 1991-12-04
SE9103608L SE9103608L (en) 1993-06-05
SE502021C2 SE502021C2 (en) 1995-07-17

Family

ID=20384528

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9103608A SE502021C2 (en) 1991-12-04 1991-12-04 Method and apparatus for purifying a circulating liquid in a circulating circuit

Country Status (3)

Country Link
AU (1) AU4028593A (en)
SE (1) SE502021C2 (en)
WO (1) WO1993010880A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8522712D0 (en) * 1985-09-13 1985-10-16 Wickham & Co Ltd D Control system
US4990264A (en) * 1989-10-13 1991-02-05 Sherex Chemical Company, Inc. Ore dewatering process and compositions therefor

Also Published As

Publication number Publication date
AU4028593A (en) 1993-06-28
SE502021C2 (en) 1995-07-17
SE9103608L (en) 1993-06-05
WO1993010880A1 (en) 1993-06-10

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9103608-7

Effective date: 19950119