Global Patent Index - EP 1079911 A1

EP 1079911 A1 2001-03-07 - DEVICE FOR OBTAINING A DESALINATED SOLUTION

Title (en)

DEVICE FOR OBTAINING A DESALINATED SOLUTION

Title (de)

VORRICHTUNG ZUR GEWINNUNG EINER ENTSALZTEN LÖSUNG

Title (fr)

DISPOSITIF POUR PREPARER UNE SOLUTION DESSALEE

Publication

EP 1079911 A1 (DE)

Application

EP 99920823 A

Priority

  • DE 19819620 A
  • EP 9902939 W

Abstract (en)

[origin: WO9956860A1] The invention relates to a device for obtaining a desalinated solution from an aqueous solution, especially raw water. The device consists of a separating chamber (2) which is divided by a filter membrane (3) into a pressurized concentrate chamber (4) filled with a concentrated solution (concentrate) and a permeate chamber (5) which is filled with the desalinated solution (permeate). An inlet line (6) for the aqueous solution discharges into the concentrate chamber (4) and a concentrate line (9) branches off from the concentrate chamber (4), while a permeate line (17), which is connected to an accumulator (19), branches off from the permeate chamber (5). By choosing a pressure accumulator as accumulator (19) it is possible to combine in a single device (1) the storage and transport of permeate in the permeate network. The pressure accumulator is divided by an impermeable separating membrane (20) into a storage chamber (21) and a pressurized chamber (22). The storage chamber (21) is connected to the permeate line (17) and the pressurized chamber (22) is connected to the concentrate line (9) via a pressure-control valve (10), preferably a jet nozzle. The negative pressure or excess pressure in the pressurized chamber (22) is generated exclusively by the pressure present in the water supply network (7).

IPC 1-7 (main, further and additional classification)

B01D 61/08; B01D 61/18

IPC 8 full level (invention and additional information)

B01D 61/06 (2006.01); B01D 61/08 (2006.01); C02F 1/44 (2006.01)

CPC (invention and additional information)

B01D 61/08 (2013.01); B01D 61/06 (2013.01); C02F 1/441 (2013.01)

Citation (search report)

See references of WO 9956860A1

Designated contracting state (EPC)

AT CH DE ES GR IT LI

EPO simple patent family

WO 9956860 A1 19991111; DE 19819620 A1 19991230; DE 19819620 C2 20020124; EP 1079911 A1 20010307; US 6432301 B1 20020813

INPADOC legal status


2002-08-21 [18R] REFUSED

- Effective date: 20020328

2001-10-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010906

2001-03-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001005

2001-03-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT CH DE ES GR IT LI