EP2455616A2 - Pompe centrifuge à flux mixte pour piscines - Google Patents

Pompe centrifuge à flux mixte pour piscines Download PDF

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Publication number
EP2455616A2
EP2455616A2 EP11380090A EP11380090A EP2455616A2 EP 2455616 A2 EP2455616 A2 EP 2455616A2 EP 11380090 A EP11380090 A EP 11380090A EP 11380090 A EP11380090 A EP 11380090A EP 2455616 A2 EP2455616 A2 EP 2455616A2
Authority
EP
European Patent Office
Prior art keywords
pump
hydraulic body
independent
mixed flow
swimming pools
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.)
Withdrawn
Application number
EP11380090A
Other languages
German (de)
English (en)
Other versions
EP2455616A3 (fr
Inventor
Marina Soler Álvarez
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.)
DESARROLLOS EMPRESARIALES VALAR SL
Original Assignee
DESARROLLOS EMPRESARIALES VALAR SL
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 DESARROLLOS EMPRESARIALES VALAR SL filed Critical DESARROLLOS EMPRESARIALES VALAR SL
Publication of EP2455616A2 publication Critical patent/EP2455616A2/fr
Publication of EP2455616A3 publication Critical patent/EP2455616A3/fr
Withdrawn legal-status Critical Current

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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the present invention refers to a mixed flow centrifugal pump for swimming pools being of the type including a hydraulic body formed by two independent pieces or parts made of plastic material, between which a complete logarithmic volute is defined, so that the use of plastic materials such as polypropylene with fiberglass, provides advantages of lower manufacturing cost compared to conventional hydraulic bodies, since no further machining is needed, and also presenting the advantage of preventing corrosion, while the plastic material prevents the conduction of galvanic and electrical streams, also presenting the advantage of a reduced weight.
  • the mixed flow centrifugal pumps having logarithmic volute used in swimming pools, precisely because of the difficult construction of the volute, are made of a molten metal, usually steel and bronze, showing a main hydraulic body shaped as a logarithmic volute.
  • metal pumps both made of gray cast iron and of cast bronze and stainless cast, have the disadvantage of the frequent occurrence of micropores, making them useless. These micropores are usually located once the cast is machined; adding to the losses of the cast costs the machining costs as well.
  • the invention proposes a mixed flow centrifugal pump for swimming pools that has a hydraulic body defining a logarithmic volute therein, while consisting of a first part and second part independent from each other, nearly symmetrical, obtained in a process of plastic injection molding, while being perimetrically joined together by screws and nuts, with interposition of a seal.
  • each of the parts of the hydraulic body is obtained from a different mold, i.e. a mold with the convenient shape for each of the two half volutes defined within such complementary parts.
  • the hydraulic body made of plastic formed by the two half volutes of the pump is made up by the complete logarithmic volute formed when joining together both parts of the hydraulic body.
  • the complete logarithmic volute is closed at the side part by using an independent flange, also made of plastic material, such as polypropylene with fiberglass, while it is fastened to the second part of the hydraulic body by screws and sealed with an O-ring seal.
  • This independent flange is also obtained in an injection molding process of plastic material, such independent flange also making up the fastening to the anchor bracket for holding the motor.
  • an upper flange is mounted as an element for closing and joining the two parts of the hydraulic body by threading and also sealed by the above described lead perimeter joint.
  • anterior flange arranged in correspondence with the fluid inlet or aspiration mouth, said anterior flange being threadably connected to the anterior part of the hydraulic body while being sealed by an O-ring.
  • the pump of the invention is made of plastic material and obtained in an injection molding process of said plastic material, being formed by the joining together of a first part 1 and a second part 2, both made up the hydraulic body 3 and between which a complete Archimedes volute 4 is defined, with the peculiarity that these two parts 1-2 are joined together by a plurality of nuts 5 and screws 6 passing through facing holes 7 established in respective perimeter wings 8 of those two complementary and independent parts 1-2.
  • An independent flange 9 for coupling an anchor bracket 10 of a motor 10' is fastened to the second part 2, while an upper flange 11 is provided to be anchored in a discharge mouth 12 as an element for closing the entire Archimedes volute 4 at the top, that discharge mouth 12 being corresponded with the fluid outlet provided by the pump assembly.
  • a fluid inlet suction mouth 13 is included in the first part 1 of the hydraulic body 3 in correspondence with an anterior flange 14 connected by threading, as occurs with the upper flange 11, while the separate flange 6 is fastened to the second part 2 of the hydraulic body 3 by using some front screws 15.
  • a main tight gasket 16 which is positioned on annular protrusions 17 formed for that purpose on the opposite areas of said parts 1-2 making up the hydraulic body 3 of the centrifugal pump itself, is sandwiched therbetween.
  • the various flanges 7-11-14 are attached to the hydraulic body 3 of the pump with the interposition of respective tight sealed O-rings 18-19-20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP11380090.8A 2010-11-23 2011-11-08 Pompe centrifuge à flux mixte pour piscines Withdrawn EP2455616A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201031178U ES1073978Y (es) 2010-11-23 2010-11-23 Bomba centrifuga de flujo mixto para piscinas

Publications (2)

Publication Number Publication Date
EP2455616A2 true EP2455616A2 (fr) 2012-05-23
EP2455616A3 EP2455616A3 (fr) 2017-08-23

Family

ID=43608332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11380090.8A Withdrawn EP2455616A3 (fr) 2010-11-23 2011-11-08 Pompe centrifuge à flux mixte pour piscines

Country Status (2)

Country Link
EP (1) EP2455616A3 (fr)
ES (1) ES1073978Y (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014060612A1 (fr) * 2012-10-15 2014-04-24 Metalast, S.A.U. Pompe pour piscines
ITUB20153948A1 (it) * 2015-09-28 2017-03-28 Dab Pumps Spa Struttura perfezionata di elettropompa centrifuga e voluta per una simile elettropompa
EP2706236A3 (fr) * 2012-09-07 2017-07-19 Herborner Pumpentechnik GmbH & Co KG Pompe avec protection contre la marche à vide
EP2706239A3 (fr) * 2012-09-07 2017-07-26 Herborner Pumpentechnik GmbH & Co KG Pompe et protection pour pompe
CN111148904A (zh) * 2017-09-29 2020-05-12 株式会社荏原制作所 泵及泵组装体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014425C2 (de) * 1980-04-15 1986-06-12 Friedrich 8541 Röttenbach Schweinfurter Seitenkanalpumpe
DE4200507C2 (de) * 1992-01-11 1994-02-17 Armin Henry Kultscher Variable Strömungsmaschine
EP1887126A1 (fr) * 2006-08-07 2008-02-13 Electrolux Home Products Corporation N.V. Pompe à eau entraînée par un moteur électrique pour une machine à laver
ES1067274Y (es) * 2008-02-05 2008-08-01 Bombas Psh S A Bomba centrifuga de flujo mixto para piscinas

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2706236A3 (fr) * 2012-09-07 2017-07-19 Herborner Pumpentechnik GmbH & Co KG Pompe avec protection contre la marche à vide
EP2706239A3 (fr) * 2012-09-07 2017-07-26 Herborner Pumpentechnik GmbH & Co KG Pompe et protection pour pompe
WO2014060612A1 (fr) * 2012-10-15 2014-04-24 Metalast, S.A.U. Pompe pour piscines
ITUB20153948A1 (it) * 2015-09-28 2017-03-28 Dab Pumps Spa Struttura perfezionata di elettropompa centrifuga e voluta per una simile elettropompa
US10859086B2 (en) 2015-09-28 2020-12-08 Dab Pumps, S.P.A. Centrifugal electric pump and volute for such an electric pump
CN111148904A (zh) * 2017-09-29 2020-05-12 株式会社荏原制作所 泵及泵组装体

Also Published As

Publication number Publication date
ES1073978U (es) 2011-03-09
EP2455616A3 (fr) 2017-08-23
ES1073978Y (es) 2011-06-09

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