EP1479919A2 - Konvertierbare Förderpumpe - Google Patents

Konvertierbare Förderpumpe Download PDF

Info

Publication number: EP1479919A2
Authority: EP; European Patent Office
Prior art keywords: pump; rotary; conduit; diffuser; air
Prior art date: 2003-05-20
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.)

2003-05-20

Filing date

2004-05-06

Publication date

2004-11-24

2004-05-06 Application filed by Velo SpA filed Critical Velo SpA

2004-11-24 Publication of EP1479919A2 publication Critical patent/EP1479919A2/de

2004-12-08 Publication of EP1479919A3 publication Critical patent/EP1479919A3/de

2006-04-05 Application granted granted Critical

2006-04-05 Publication of EP1479919B1 publication Critical patent/EP1479919B1/de

2024-05-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000007788 liquid Substances 0.000 claims abstract description 20
238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
239000003570 air Substances 0.000 claims abstract 8
239000012080 ambient air Substances 0.000 claims abstract 3
239000000463 material Substances 0.000 claims description 9
230000008719 thickening Effects 0.000 claims description 9
239000000084 colloidal system Substances 0.000 claims description 8
238000000855 fermentation Methods 0.000 claims description 4
230000004151 fermentation Effects 0.000 claims description 4
238000001914 filtration Methods 0.000 claims description 4
239000007789 gas Substances 0.000 description 9
239000000203 mixture Substances 0.000 description 6
238000005352 clarification Methods 0.000 description 4
238000005188 flotation Methods 0.000 description 4
238000010276 construction Methods 0.000 description 3
238000000034 method Methods 0.000 description 3
239000011358 absorbing material Substances 0.000 description 2
235000012216 bentonite Nutrition 0.000 description 2
238000004891 communication Methods 0.000 description 2
238000006073 displacement reaction Methods 0.000 description 2
230000000694 effects Effects 0.000 description 2
238000003756 stirring Methods 0.000 description 2
229910000278 bentonite Inorganic materials 0.000 description 1
239000000440 bentonite Substances 0.000 description 1
SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000002156 mixing Methods 0.000 description 1
239000002245 particle Substances 0.000 description 1
230000000284 resting effect Effects 0.000 description 1
239000007787 solid Substances 0.000 description 1

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D31/00—Pumping liquids and elastic fluids at the same time
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations 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
ITTV20030077		2003-05-20
IT000077A ITTV20030077A1 (it)	2003-05-20	2003-05-20	Pompa di travaso convertibile.

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)

Family Cites Families (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
FR2557643B1 (fr) *	1983-12-30	1986-05-09	Inst Francais Du Petrole	Dispositif d'alimentation d'une pompe de fluide diphasique et installation de production d'hydrocarbures comportant un tel dispositif

2003
- 2003-05-20 IT IT000077A patent/ITTV20030077A1/it unknown
2004
- 2004-05-06 AT AT04010771T patent/ATE322620T1/de not_active IP Right Cessation
- 2004-05-06 DE DE602004000585T patent/DE602004000585D1/de not_active Expired - Lifetime
- 2004-05-06 EP EP04010771A patent/EP1479919B1/de not_active Expired - Lifetime

Also Published As

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

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