EP0657602B1 - Zentrifugalpumpe für Wasserumlauf - Google Patents

Zentrifugalpumpe für Wasserumlauf Download PDF

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Publication number
EP0657602B1
EP0657602B1 EP19940500199 EP94500199A EP0657602B1 EP 0657602 B1 EP0657602 B1 EP 0657602B1 EP 19940500199 EP19940500199 EP 19940500199 EP 94500199 A EP94500199 A EP 94500199A EP 0657602 B1 EP0657602 B1 EP 0657602B1
Authority
EP
European Patent Office
Prior art keywords
outer container
pump
filter
tubular part
edge
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.)
Expired - Lifetime
Application number
EP19940500199
Other languages
English (en)
French (fr)
Other versions
EP0657602A1 (de
Inventor
José c/o Bombas Eléctricas S.A. Pages Pages
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.)
Bombas Electricas SA BOELSA
Original Assignee
Bombas Electricas SA BOELSA
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Filing date
Publication date
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Application filed by Bombas Electricas SA BOELSA filed Critical Bombas Electricas SA BOELSA
Publication of EP0657602A1 publication Critical patent/EP0657602A1/de
Application granted granted Critical
Publication of EP0657602B1 publication Critical patent/EP0657602B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1245—Recirculating pumps for swimming pool water

Definitions

  • the present invention relates to a centrifugal pump for the recirculation of water, applicable in particular to swimming pools, the pump being provided with an electromotor whose axis sets in motion an impeller of several blades which rotates inside d '' a diffusion chamber, closed in particular by a diffuser, the liquid entering coaxially with the impeller and leaving expelled by centrifugal force to a discharge chamber arranged between the electromotive motor and a prefilter, the pump having a pump body divided into two contiguous longitudinal portions, an anterior portion forming the prefilter and a posterior portion in which the diffusion chamber is defined, configured by the diffuser and the discharge chamber which occupies the remaining volume, the prefilter being designed so that it comprises an external container and a vertical filter cup placed inside the external container provided with a suction mouth external, of a horizontal circular mouth closed in a leaktight manner, allowing the introduction and the extraction of the filter cup, and of an outlet conduit connected to the axial entry of the impeller, so that the liquid suctioned enters the external
  • centrifugal pumps for recirculating swimming pool water essentially comprise a centrifugal electric pump and a prefilter which are connected and aligned longitudinally.
  • the centrifugal electric pump comprises an electric motor, the output axis of which is coupled to an impeller housed in a diffusion chamber and which is provided with a plurality of blades, which, prompted by the electric motor, draw the liquid to through the prefilter and expel it by centrifugal force to the outlet duct, which, in general, is placed orthogonal to the longitudinal axis defined by the assembly of the electric pump and the prefilter.
  • the prefilter which has an overall cylindrical or frustoconical shape, comprises a filter cup arranged so that all of the liquid discharged by the centrifugal pump must first pass through the walls of the filter cup before reaching the diffusion chamber, a plurality of screen-like orifices being provided in the side walls of the filter cup, which retains, from a certain size, the suspended solids transported by water.
  • the prefilter further includes a cover which allows the extraction, cleaning and replacement of the filter cup, and an external suction inlet where the liquid inlet duct to the pump is connected.
  • European patent EP-A-0544610 which describes a centrifugal pump having the characteristics of the preamble of claim 1, describes a prefilter for swimming pool installations, comprising an external suction inlet also transverse opposite the side wall of the filter cup.
  • the arrangement of the external suction inlet described in the known embodiments of centrifugal pumps has, among other important drawbacks, first of all the fact that the external suction inlet occupies a fixed position relative to the axis given by the coupling of the electric pump and the prefilter, which largely limits the positioning of the centrifugal pump relative to the liquid inlet duct, and consequently, in most cases, the coupling of said inlet duct to the external suction inlet requires the use of several accessories and / or that said duct is curved, and, secondly, that there must be a large space between the lid of the outer container and entry of the filter cup, which considerably reduces the dimensions of the latter.
  • the centrifugal pump which is the subject of the present invention eliminates all the drawbacks mentioned previously, and it is essentially characterized in that said suction inlet and said horizontal circular mouth of the external container are unified into a single horizontal circular opening made at the end upper open of a cylindrical upper portion of said outer container, externally threaded, said vertical filter cup being provided at its mouth with a peripheral rim projecting outwards, designed to rest on the edge of said horizontal circular opening of the outer container, said edge being provided with a groove into which a tight seal is introduced, and a bent tubular piece being provided at one end of a flange, having substantially the same diameter as that of the mouth of the outer container and adapted to be able to rest on the latter, a nut drilled in the center of said mouth being provided, through the orifice through which passes said bent tubular piece, which is adapted to be screwed around the external thread of said cylindrical upper portion of the external container, so that when it is tightened during screwing, it compresses the flange of said tub
  • the single figure of the drawings illustrates a view in upper lateral section of the centrifugal pump which is the subject of the invention.
  • the pump 1 comprises a pump body 2 coupled by means of an intermediate flange 3, and an electric motor 4, mounted on a support 5.
  • the end of the output axis 6 of the electric motor 4 passes through the flange 3 and it is coupled to the impeller 7 provided with a plurality of blades.
  • Said impeller 7 is placed inside the diffusion chamber 8, limited by the diffuser 9.
  • the conduit 10, of circular cross section, allows the liquid to enter the diffusion pump 8, which leaves discharged by the outlet of the liquid 11 from said chamber 8.
  • the pump body 2 is divided into two contiguous longitudinal portions, an anterior or prefilter 12, and a posterior 13, defined internally by a circular front partition 14.
  • the diffusion chamber 8 configured by the diffuser 9 and the discharge chamber 15 which occupies the remaining volume.
  • the prefilter 12 comprises an external container 16, in which the external suction inlet for entering the liquid in the prefilter 12 and the horizontal circular mouth of the external container 16 are unified into a single horizontal circular opening 17, formed at the end upper open of a cylindrical upper portion 18 of said external container 16 provided with an external thread 19.
  • a filter cup 20 Inside the outer container 16 is disposed a filter cup 20, provided at its mouth with a peripheral rim 21 projecting outwards, designed to be able to bear on the edge of said opening 17. Said edge of the opening 17 is provided with a groove into which a seal 22 is introduced.
  • a tubular piece 23 preferably bent, provided at one of its ends with a flange 24, which has substantially the same diameter as that of the opening 17 of the external container 16, and which is adapted to be able to lean on the edge thereof.
  • the part 23 also comprises a pierced nut 25, through the central orifice through which the said part 23 passes.
  • the nut 25 is adapted to be screwed around the external thread 19 of the cylindrical upper portion 18 of the external container 16.
  • the screw nut 25 When tightened during screwing, the screw nut 25 compresses said flange 24 of the part 23 against the upper edge of the opening 17, compressing the flange 21 and said seal 22 between the flange 24 and the upper edge of the opening 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Centrifugal Separators (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (1)

  1. Zentrifugalpumpe (1) zur Umwälzung von Wasser, zur Anwendung insbesondere in Schwimmbecken, welche Pumpe mit einem Elektromotor (4) ausgestattet ist, dessen Achse (6) ein Laufrad (7) mit mehreren Schaufeln in Bewegung setzt, das sich im Inneren einer Ausströmkammer (8) dreht, die insbesondere durch einen Diffusor bzw. Ausströmraum (9) abgeschlossen ist, wobei die Flüssigkeit koaxial zu dem Laufrad eintritt und von der Zentrifugalkraft ausgestoßen zu einer Förderkammer (15) austritt, die zwischen dem Elektromotor (4) und einem Vorfilter (12) angeordnet ist, welche Pumpe (1) ein Pumpengehäuse (2) aufweist, das in zwei in Längsrichtung anliegende Abschnitte unterteilt ist, in einen vorderen Abschnitt, welcher den Vorfilter (12) bildet, und in einen hinteren Abschnitt, in dem sich die Ausströmkammer (8) vorgegeben befindet. welche aus dem Diffusor (9) und der Förderkammer (15), welche das restliche Volumen einnimmt, zusammengesetzt ist, wobei der Vorfilter dergestalt vorgesehen ist, daß er ein externes Behältnis (16) und einen vertikalen Becherfilter bzw. Godet-Filter (20) enthält, der im Inneren des externen Behältnisses (16) angeordnet ist, und welcher Vorfilter mit einem externen Ansaugeinlaß, mit einem wasserdicht abgeschlossenen horizontalen, kreisförmigen Ansatzstück, welches das Einführen und Herausnehmen des Becherfilters ermöglicht, und mit einer Auslaßleitung versehen ist, die mit dem Axialeinlaß des Laufrades (7) verbunden ist, dergestalt, daß die angesaugte Flüssigkeit in das externe Behältnis (16) durch den externen Ansaugeinlaß eintritt und zwingend durch die Seitenwandungen des Becherfilters (20) hindurchtreten muß, bevor sie zu der Pumpe gelangt, dadurch gekennzeichnet, daß der Ansaugeinlaß und das horizontale, kreisförmige Ansatzstück des externen Behältnisses (16) in einer einzigen horizontalen, kreisförmigen Öffnung (17) vereinigt sind, die an dem oberen Öffnungsende eines oberen zylindrischen Abschnitts (18) des externen Behältnisses realisiert ist und mit Außengewinde versehen ist, welcher Becherfilter (20) vertikal angeordnet ist, an seinem Ansatzstück mit einer zur Außenseite hin vorstehenden Randkrempe (21) versehen ist, die vorgesehen ist, um sich auf den Rand der horizontalen, kreisförmigen Öffnung (17) des externen Behältnisses aufzulegen, welcher Rand mit einer Nut bzw. Einkerbung versehen ist, in die eine Dichtung (22) eingeführt ist, wobei ein Rohrteil (22), das an einem der Enden eines Flansches (24) angeordnet ist, der ungefähr den gleichen Durchmesser aufweist wie die Öffnung (17) des externen Behältnisses und dazu vorgesehen ist, um sich auf dessen Rand anzudrücken, wobei eine Mutter mit Innengewinde (25) vorgesehen ist, durch deren Öffnung hindurch sich das Rohrteil (23) erstreckt, welches ausgelegt ist, um auf das Außengewinde (19) des oberen zylindrischen Abschnittes (18) des externen Behältnisses aufgeschraubt werden zu können, dergestalt, daß die Schraubenmutter. wenn sie auf der Schraubverbindung angezogen wird, den Flansch (24) des Rohrteils gegen den oberen Rand der Öffnung (17) des externen Behältnisses (16) preßt und auf diese Weise die Randkrempe (21) des Becherfilters und die Dichtung (22) zwischen dem Flansch (24) des Rohrteiles und dem oberen Rand der Öffnung (17) des externen Behältnisses zusammendrückt.
EP19940500199 1993-12-03 1994-11-28 Zentrifugalpumpe für Wasserumlauf Expired - Lifetime EP0657602B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9302539A ES2076883B1 (es) 1993-12-03 1993-12-03 Bomba centrifuga para la recirculacion de agua.
ES9302539 1993-12-03

Publications (2)

Publication Number Publication Date
EP0657602A1 EP0657602A1 (de) 1995-06-14
EP0657602B1 true EP0657602B1 (de) 1997-08-06

Family

ID=8283831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940500199 Expired - Lifetime EP0657602B1 (de) 1993-12-03 1994-11-28 Zentrifugalpumpe für Wasserumlauf

Country Status (3)

Country Link
EP (1) EP0657602B1 (de)
DE (1) DE69404817T2 (de)
ES (2) ES2076883B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8182212B2 (en) 2006-09-29 2012-05-22 Hayward Industries, Inc. Pump housing coupling
US9079128B2 (en) 2011-12-09 2015-07-14 Hayward Industries, Inc. Strainer basket and related methods of use

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2192941B1 (es) 2001-06-15 2005-02-16 Bogemar, S.L. Electrobomba para la recirculacion de agua.
GB2395144A (en) * 2002-09-24 2004-05-19 Hattersley Newman Hender Ltd A straining device
US8186517B2 (en) 2005-11-01 2012-05-29 Hayward Industries, Inc. Strainer housing assembly and stand for pump
US7531092B2 (en) * 2005-11-01 2009-05-12 Hayward Industries, Inc. Pump
DE102006023379B4 (de) * 2006-05-17 2013-10-02 Al-Ko Kober Ag Flüssigkeitspumpe
US8297920B2 (en) 2008-11-13 2012-10-30 Hayward Industries, Inc. Booster pump system for pool applications
DE102010038137B4 (de) 2010-10-12 2018-03-15 Herborner Pumpentechnik Gmbh & Co Kg Umwälzvorrichtung für Bäder
DE102012108356B4 (de) * 2012-09-07 2015-12-31 Herborner Pumpenfabrik J. H. Hoffmann Gmbh & Co. Kg Anschlusssystem
CN104006003B (zh) * 2013-02-23 2016-12-28 天佑电器（苏州）有限公司 一种排水系统
CN105508301A (zh) * 2015-12-18 2016-04-20 安徽南方化工泵业有限公司 耐腐蚀过滤式泵体
US10718337B2 (en) 2016-09-22 2020-07-21 Hayward Industries, Inc. Self-priming dedicated water feature pump
CN108204359B (zh) * 2018-01-09 2019-04-19 江苏绩优机电科技有限公司 防爆泵
CN110080994A (zh) * 2019-06-06 2019-08-02 湖北泉洁二次供水工程有限公司 一种水泵防堵塞结构
CN111622957A (zh) * 2020-06-15 2020-09-04 张扬 一种具有防堵功能的道路施工用抽水泵
CN111779682A (zh) * 2020-08-07 2020-10-16 新昌县七星街道博创机械厂 一种用于水利工程的具有调速功能的水泵结构
CN111878416A (zh) * 2020-08-15 2020-11-03 唐翠华 一种水泵的机械密封防护装置
USD986289S1 (en) 2020-11-24 2023-05-16 Aquastar Pool Products, Inc. Centrifugal pump
USD946629S1 (en) 2020-11-24 2022-03-22 Aquastar Pool Products, Inc. Centrifugal pump
US11193504B1 (en) 2020-11-24 2021-12-07 Aquastar Pool Products, Inc. Centrifugal pump having a housing and a volute casing wherein the volute casing has a tear-drop shaped inner wall defined by a circular body region and a converging apex with the inner wall comprising a blocker below at least one perimeter end of one diffuser blade
CN217300888U (zh) * 2021-12-17 2022-08-26 天津市龙新石油机械制造股份有限公司 一种多功能防砂卡泵
CN117128191A (zh) * 2023-09-27 2023-11-28 利欧集团浙江泵业有限公司 一种水力性能提升装置
CN117366003B (zh) * 2023-12-07 2024-05-07 珠海格力电器股份有限公司 一种用于液泵进液口的密封结构及其形成的液泵压缩机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB379738A (en) * 1931-06-04 1932-09-05 Stone J & Co Ltd Improvements in and relating to electrically driven pumps
GB500072A (en) * 1937-12-22 1939-02-02 Drysdale & Co Ltd Improvements in or relating to strainers for centrifugal pumps
ES284474Y (es) * 1985-01-31 1986-10-16 Bombas Electricas, S.A. Bomba centrifuga para la recirculacion de agua
ES291043Y (es) * 1985-11-29 1986-12-01 Bombas Electricas,S.A. Bomba centrifuga para la recirculacion de agua
ES1019424Y (es) * 1991-11-13 1992-10-16 Doll, S.A. Prefiltro para instalaciones de piscinas.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8182212B2 (en) 2006-09-29 2012-05-22 Hayward Industries, Inc. Pump housing coupling
US9079128B2 (en) 2011-12-09 2015-07-14 Hayward Industries, Inc. Strainer basket and related methods of use

Also Published As

Publication number Publication date
EP0657602A1 (de) 1995-06-14
ES2107163T3 (es) 1997-11-16
DE69404817D1 (de) 1997-09-11
ES2076883R (de) 1998-02-16
ES2076883A2 (es) 1995-11-01
ES2076883B1 (es) 1998-10-16
DE69404817T2 (de) 1997-12-18

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