EP1479919A2 - Konvertierbare Förderpumpe - Google Patents

Konvertierbare Förderpumpe Download PDF

Info

Publication number
EP1479919A2
EP1479919A2 EP04010771A EP04010771A EP1479919A2 EP 1479919 A2 EP1479919 A2 EP 1479919A2 EP 04010771 A EP04010771 A EP 04010771A EP 04010771 A EP04010771 A EP 04010771A EP 1479919 A2 EP1479919 A2 EP 1479919A2
Authority
EP
European Patent Office
Prior art keywords
pump
rotary
conduit
diffuser
air
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP04010771A
Other languages
English (en)
French (fr)
Other versions
EP1479919A3 (de
EP1479919B1 (de
Inventor
Antonio Velo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Velo SpA
Original Assignee
Velo SpA
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 Velo SpA filed Critical Velo SpA
Publication of EP1479919A2 publication Critical patent/EP1479919A2/de
Publication of EP1479919A3 publication Critical patent/EP1479919A3/de
Application granted granted Critical
Publication of EP1479919B1 publication Critical patent/EP1479919B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D31/00Pumping liquids and elastic fluids at the same time
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/12Combinations of two or more pumps

Definitions

  • the present invention refers to apparatuses used to blow gases under pressure into a food-grade liquid during a clarification process.
  • reference will be made to must in the following description as a non-limiting example of a food-grade liquid to be clarified.
  • a pump capable of ensuring a head of at least 3 kg/cm 2 preferably a pump comprised of two or more stages in series, and provided with a convergent diffuser on the intake conduit thereof, enables the air - required to ensure the clarification by flotation of the liquid mixture of must and thickening and absorbing materials - to be taken in directly from the surrounding ambient in an adequate amount by connecting a point situated between the diffuser and the pump body with the outside air.
  • a transfer pump having a pump body 2, two or more horizontal-axis centrifugal impellers in series (not shown) and a drive motor 4, which are all mounted on a platform 6 provided with wheels 12 for permitting a displacement of the pump, a base 14 for resting on the ground, as well as a handlebar 16 (see in particular Figure 2).
  • a transfer pump is shown having a pump body 2, two or more horizontal-axis centrifugal impellers in series (not shown) and a drive motor 4, which are all mounted on a platform 6 provided with wheels 12 for permitting a displacement of the pump, a base 14 for resting on the ground, as well as a handlebar 16 (see in particular Figure 2).
  • a transfer pump is shown having a pump body 2, two or more horizontal-axis centrifugal impellers in series (not shown) and a drive motor 4, which are all mounted on a platform 6 provided with wheels 12 for permitting a displacement of the pump, a base 14 for resting on the ground, as well as a handlebar 16 (
  • a pressure gauge 50 and an adjustable valve 52, the purpose of which is to ensure that the delivery head of the pump is kept at a value of at least 3 kg/cm 2 that is considered as being absolutely necessary in view of achieving the desired effect.
  • the transfer pump can be advantageously used for the clarification of the must by first of all providing for a frusto-conical diffuser 30, i.e. a convergent diffuser, to be inserted upstream of the pump body 2.
  • a frusto-conical diffuser 30, i.e. a convergent diffuser to be inserted upstream of the pump body 2.
  • the cross-section area of the inlet section 32 i.e. the section facing the filter block 24
  • the convergent diffuser may be inserted between a first branch 26 of the intake conduit 20, downstream of the filter block 24, and a second branch 28 thereof.
  • a conduit 42 is provided to suck air from the surrounding ambient into the intake conduit 20.
  • the air conduit 42 ends at a point 40 of the intake conduit 20 which is situated beyond the outlet section 34 of the diffuser 30 and, anyway, upstream of the pump body 2 and, more specifically, in said second branch 28 of the conduit 20 through which the liquid being treated is caused to flow.
  • an air filtration unit 44 along the air conduit 42 there are successively inserted, starting from the outside (i.e. from the zone that is in communication with the surrounding ambient, which, by definition, lies at atmospheric pressure), an air filtration unit 44, a flowmeter 46 (wherein the term flowmeter is intended to mean any volume measuring and/or flow-rate transmitting instrument), and an one-way valve 48 that is intended to prevent any must from leaking into the surrounding ambient in the case that the pump impellers suddenly stop rotating and get stalled.
  • the negative pressure brought about by the convergent diffuser 30 in the flow of must causes the air that is needed for carrying out the clarification-by-flotation process to be sucked from the surrounding ambient in an adequate amount.
  • the high head (at least 3 kg/cm 2 ) of the pump is in turn effective in avoiding undesired cavitation effects.
  • the same pump can of course be used to also perform as a conventional pump for the transfer of the must.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
EP04010771A 2003-05-20 2004-05-06 Konvertierbare Förderpumpe Expired - Lifetime EP1479919B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000077A ITTV20030077A1 (it) 2003-05-20 2003-05-20 Pompa di travaso convertibile.
ITTV20030077 2003-05-20

Publications (3)

Publication Number Publication Date
EP1479919A2 true EP1479919A2 (de) 2004-11-24
EP1479919A3 EP1479919A3 (de) 2004-12-08
EP1479919B1 EP1479919B1 (de) 2006-04-05

Family

ID=33042736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04010771A Expired - Lifetime EP1479919B1 (de) 2003-05-20 2004-05-06 Konvertierbare Förderpumpe

Country Status (4)

Country Link
EP (1) EP1479919B1 (de)
AT (1) ATE322620T1 (de)
DE (1) DE602004000585D1 (de)
IT (1) ITTV20030077A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH237063A (de) * 1942-02-14 1945-03-31 Aschaffenburger Zellstoffwerke Verfahren und Anlage zum gleichzeitigen Ansaugen und Fördern von Luft und Wasser mit einer Kreiselpumpe.
US3689237A (en) * 1970-02-19 1972-09-05 North American Utility Constru Fuel gas pipeline system
US4641679A (en) * 1983-12-30 1987-02-10 Institute Francais Du Petrole Feed device for a two-phase fluid pump and a hydrocarbon producing installation with such feed device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH237063A (de) * 1942-02-14 1945-03-31 Aschaffenburger Zellstoffwerke Verfahren und Anlage zum gleichzeitigen Ansaugen und Fördern von Luft und Wasser mit einer Kreiselpumpe.
US3689237A (en) * 1970-02-19 1972-09-05 North American Utility Constru Fuel gas pipeline system
US4641679A (en) * 1983-12-30 1987-02-10 Institute Francais Du Petrole Feed device for a two-phase fluid pump and a hydrocarbon producing installation with such feed device

Also Published As

Publication number Publication date
EP1479919A3 (de) 2004-12-08
EP1479919B1 (de) 2006-04-05
ITTV20030077A1 (it) 2004-11-21
ATE322620T1 (de) 2006-04-15
DE602004000585D1 (de) 2006-05-18

Similar Documents

Publication Publication Date Title
CN206937645U (zh) 一种混凝土液体添加剂的搅拌装置
CA2359653A1 (en) Self-evacuating vacuum cleaner
EP1479919B1 (de) Konvertierbare Förderpumpe
DE602005020966D1 (de) Verfahren und vorrichtung zur herstellung von farbe
US6264174B1 (en) High pressure tank for an emulsifier
US3455346A (en) Fuel supply apparatus
GB2464597A (en) Protein skimmer
CN208612346U (zh) 稀土溶解罐
CN209052447U (zh) 一种生化反应池用的曝气装置
JP3445403B2 (ja) 曝気システム
CN101235345B (zh) 一种白酒勾兑搅拌装置
CN209403381U (zh) 药水混合均匀的樱桃树用弥雾机
CN110652903A (zh) 一种超高速旋转多刀头气液切割混合氧合器
CN213281245U (zh) 林业药物喷洒装置
CN2280790Y (zh) 水泵自吸装置
CN218840482U (zh) 一种气流搅拌式混凝土助剂存储罐
CN2229139Y (zh) 具有充气增氧功能的水族箱过滤器
CN219709315U (zh) 一种污水处理设备
CN218321370U (zh) 一种气升式不锈钢发酵罐
CN218981119U (zh) 消泡剂乳化机构
CN2719027Y (zh) 水族箱
CN218530910U (zh) 一种新型高效反应釜
FI86381C (fi) Gasupploesningsanordning.
US11352277B2 (en) VacFlush adaptor for submersible pumps
CN2817423Y (zh) 一种水产养殖用的氧水混合装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20050520

17Q First examination report despatched

Effective date: 20050617

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AXX Extension fees paid

Extension state: HR

Payment date: 20050520

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: HR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060405

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060508

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602004000585

Country of ref document: DE

Date of ref document: 20060518

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060705

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060716

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060905

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070108

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060706

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060506

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061006

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060405

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080506