(19)
(11) EP 2 014 922 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.07.2014 Bulletin 2014/28

(43) Date of publication A2:
14.01.2009 Bulletin 2009/03

(21) Application number: 08157039.2

(22) Date of filing: 28.05.2008
(51) International Patent Classification (IPC): 
F04D 13/14(2006.01)
F04D 15/02(2006.01)
 F04D 13/12(2006.01)
E03F 5/22(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 28.05.2007 FI 20075382

(71) Applicant: Oy Grundfos Pumput AB
53100 Lappeenranta (FI)

(72) Inventors:
  • Sarvanne, Hannu
    01620 Vantaa (FI)
  • Räsänen, Jorma
    55100 Imatra (FI)

(74) Representative: Heinänen, Pekka Antero et al
Heinänen Oy Patent Agency Airport Plaza Äyritie 8 D
01510 Vantaa
01510 Vantaa (FI)

   


(54) Sewage booster station


(57) A booster station (5) of sewage water, in which the startings and stoppings of pumps (6) installed in it are controlled by means of pressure prevailing on the suction side of the pumps or in frequency converter drives by means of frequencies. The invention is implemented such that the pumps (6) of the booster station (5) have a common inlet pipe (7) of the suction side which branches from a previous pumping station or an equivalent incoming inlet pipe (4).







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Search report