Global Patent Index - EP 0839708 B1

EP 0839708 B1 20041027 - Process and arrangement for draining a liquid residue from the bottom of a tank

Title (en)

Process and arrangement for draining a liquid residue from the bottom of a tank

Title (de)

Verfahren und Anordnung zur Abfuhr einer Restflüssigkeit vom Boden eines Tanks

Title (fr)

Procédé et système d'évacuation d'un résidu liquide du fond d'un réservoir

Publication

EP 0839708 B1 20041027 (EN)

Application

EP 97203502 A 19921102

Priority

  • EP 93900466 A 19921102
  • NO 9200180 W 19921102
  • NO 920380 A 19920128

Abstract (en)

[origin: EP0839708A2] A liquid residue (14) is drained from the bottom (10a) of a tank (10) via a drain pipe (15) having its open bottom intake end (13a) near the tank bottom, using a pump or ejector (16) arranged at a level substantially above the upper level of the liquid residue (14). The pump (16) or ejector establishes an upwardly directed gas/liquid current in the drain pipe (15). At distinct levels (A1, A2) above the upper surface of the liquid residue, a gas medium is sucked into the drain pipe (15) through gas inlet openings (19a, 19b) in the drain pipe wall in order to mix this gas medium with the gas/liquid current passing through the drain pipe (15).

IPC 1-7

B63B 27/24; B63B 13/00; F04F 1/20

IPC 8 full level

B63B 13/00 (2006.01); B63B 27/24 (2006.01); F04F 1/20 (2006.01); F04F 5/24 (2006.01)

CPC (source: EP)

B63B 13/00 (2013.01); B63B 27/24 (2013.01); F04F 1/20 (2013.01); F04F 5/24 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE

DOCDB simple family (publication)

EP 0839708 A2 19980506; EP 0839708 A3 19991201; EP 0839708 B1 20041027; AT E166301 T1 19980615; AT E280706 T1 20041115; AU 3174093 A 19930901; DE 69225608 D1 19980625; DE 69233440 D1 20041202; EP 0623084 A1 19941109; EP 0623084 B1 19980520; NO 174460 B 19940131; NO 174460 C 19960917; NO 920380 D0 19920128; NO 920380 L 19930729; WO 9314969 A1 19930805

DOCDB simple family (application)

EP 97203502 A 19921102; AT 93900466 T 19921102; AT 97203502 T 19921102; AU 3174093 A 19921102; DE 69225608 T 19921102; DE 69233440 T 19921102; EP 93900466 A 19921102; NO 9200180 W 19921102; NO 920380 A 19920128