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1. WO1996004062 - A FILTER, IN PARTICULAR A MAGNET FILTER FOR CONTINUOUS SERVICE

Publication Number WO/1996/004062
Publication Date 15.02.1996
International Application No. PCT/DK1995/000321
International Filing Date 03.08.1995
Chapter 2 Demand Filed 01.03.1996
IPC
B01D 29/23 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/-B01D27/170;   Filtering elements therefor
11with bag, cage, hose, tube, sleeve or like filtering elements
13Supported filter elements
23arranged for outward flow filtration
B01D 35/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
35Filtering devices having features not specifically covered by groups B01D24/-B01D33/, or for applications not specifically covered by groups B01D24/-B01D33/230; Auxiliary devices for filtration; Filter housing constructions
06Filters making use of electricity or magnetism
CPC
B01D 2201/167
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2201Details relating to filtering apparatus
16Valves
167Single-way valves
B01D 29/23
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
11with bag, cage, hose, tube, sleeve or like filtering elements
13Supported filter elements
23arranged for outward flow filtration
B01D 29/90
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
88having feed or discharge devices
90for feeding
B01D 29/92
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
88having feed or discharge devices
92for discharging filtrate
B01D 29/96
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
96in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
B01D 35/06
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
35Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
06Filters making use of electricity or magnetism
Applicants
  • HECO INTERNATIONAL A/S [DK/DK]; Hecovej 1 DK-8722 Hedensted, DK (AllExceptUS)
  • CHRISTIANSEN, Flemming [DK/DK]; DK (UsOnly)
Inventors
  • CHRISTIANSEN, Flemming; DK
Agents
  • K. SKØTT-JENSEN, PATENTINGENIØRER A/S; Lemmingvej 225 DK-8361 Hasselager, DK
Priority Data
0906/9403.08.1994DK
Publication Language English (EN)
Filing Language Danish (DA)
Designated States
Title
(EN) A FILTER, IN PARTICULAR A MAGNET FILTER FOR CONTINUOUS SERVICE
(FR) FILTRE, NOTAMMENT FILTRE MAGNETIQUE A FONCTIONNEMENT CONTINU
Abstract
(EN)
Known filters for central and district heating systems must be cleaned frequently and further there is risk that the filter may clog completely. The invention solves this problem and allows in addition removal and cleaning of the filter unit while the heating system is still operational. When the pressure drop is being too high a spring loaded valve (9) permits the circulating water to pass through a channel (7) by-passing the filter unit (3). When the valve (5) is turned in its blocking position then the filter unit (3) is unpressurized as a one-way valve (6) prevents pressure from the outlet side. In this position the filter unit may be removed and the circulation is maintained through the channel (7).
(FR)
Il convient de nettoyer fréquemment les filtres classiques destinés aux chauffages centraux ou en réseaux et il existe aussi un risque qu'ils se bouchent complètement. L'invention permet de résoudre ce problème, et en plus, de démonter et nettoyer un filtre alors que le chauffage continue à fonctionner. Quand la pression baisse trop, une soupape à ressort (9) permet à l'eau en circulation de traverser une conduite (7) qui contourne le filtre (3). Quand la soupape (5) est placée en position fermée, le filtre n'est plus soumis à une pression car une soupape de non retour (6) évite l'application d'une pression depuis la sortie. Dans ce cas, on peut démonter le filtre tout en maintenant la circulation dans la conduite (7).
Also published as
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