EP0657602A1 - Zentrifugalpumpe für Wasserumlauf - Google Patents

Zentrifugalpumpe für Wasserumlauf Download PDF

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Publication number
EP0657602A1
EP0657602A1 EP94500199A EP94500199A EP0657602A1 EP 0657602 A1 EP0657602 A1 EP 0657602A1 EP 94500199 A EP94500199 A EP 94500199A EP 94500199 A EP94500199 A EP 94500199A EP 0657602 A1 EP0657602 A1 EP 0657602A1
Authority
EP
European Patent Office
Prior art keywords
external container
external
prefilter
pump
opening
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
EP94500199A
Other languages
English (en)
French (fr)
Other versions
EP0657602B1 (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
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8283831&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0657602(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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, of the type which includes a prefilter and a discharge chamber between the pump and the prefilter, the pump being provided with an electric motor, the axis sets in motion an impeller of several blades which rotates inside a diffusion chamber, closed in particular by a diffuser, the liquid entering coaxially with the impeller and exiting expelled by force centrifugal to a discharge chamber arranged between the electric motor and the prefilter, the prefilter being designed so that it comprises a vertical filter cup placed inside an external container fitted with a suction mouth external, of a horizontal circular mouth closed in a sealed manner, allowing the introduction and the extraction of the filter cup, and of an outlet conduit connected to the axial entry of the impeller (7), d e so that the sucked liquid enters the external container (16) through the external suction mouth and must pass through the walls of said filter cup (20) before arriving at the pump.
  • 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.
  • 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 the 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 by the fact 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
  • 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)
  • Water Supply & Treatment (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Centrifugal Separators (AREA)
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 true EP0657602A1 (de) 1995-06-14
EP0657602B1 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 (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1267085A2 (de) 2001-06-15 2002-12-18 Bogemar, S.L. Elektropumpengruppe für eine Wasserzirkulationsanlage
WO2004029464A1 (en) * 2002-09-24 2004-04-08 Crane Limited A suction diffuser
US7531092B2 (en) * 2005-11-01 2009-05-12 Hayward Industries, Inc. Pump
US8186517B2 (en) 2005-11-01 2012-05-29 Hayward Industries, Inc. Strainer housing assembly and stand for pump
US8297920B2 (en) 2008-11-13 2012-10-30 Hayward Industries, Inc. Booster pump system for pool applications
DE102006023379B4 (de) * 2006-05-17 2013-10-02 Al-Ko Kober Ag Flüssigkeitspumpe
EP2706275A3 (de) * 2012-09-07 2014-08-06 Herborner Pumpenfabrik J.H. Hoffmann GmbH & Co. KG Anschlusssystem
CN104006003A (zh) * 2013-02-23 2014-08-27 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
CN108204359A (zh) * 2018-01-09 2018-06-26 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
US10718337B2 (en) 2016-09-22 2020-07-21 Hayward Industries, Inc. Self-priming dedicated water feature pump
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
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
USD946629S1 (en) 2020-11-24 2022-03-22 Aquastar Pool Products, Inc. Centrifugal pump
USD986289S1 (en) 2020-11-24 2023-05-16 Aquastar Pool Products, Inc. Centrifugal pump
WO2023109253A1 (zh) * 2021-12-17 2023-06-22 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
CN117366003A (zh) * 2023-12-07 2024-01-09 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

Families Citing this family (5)

* 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
DE102010038137B4 (de) 2010-10-12 2018-03-15 Herborner Pumpentechnik Gmbh & Co Kg Umwälzvorrichtung für Bäder
US9079128B2 (en) 2011-12-09 2015-07-14 Hayward Industries, Inc. Strainer basket and related methods of use
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
CN111878416A (zh) * 2020-08-15 2020-11-03 唐翠华 一种水泵的机械密封防护装置

Citations (3)

* 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
EP0544610A1 (de) * 1991-11-13 1993-06-02 Doll, S.A. Vorfilter für Schwimmbad

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (3)

* 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
EP0544610A1 (de) * 1991-11-13 1993-06-02 Doll, S.A. Vorfilter für Schwimmbad

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1267085A2 (de) 2001-06-15 2002-12-18 Bogemar, S.L. Elektropumpengruppe für eine Wasserzirkulationsanlage
WO2004029464A1 (en) * 2002-09-24 2004-04-08 Crane Limited A suction diffuser
US7531092B2 (en) * 2005-11-01 2009-05-12 Hayward Industries, Inc. Pump
US8186517B2 (en) 2005-11-01 2012-05-29 Hayward Industries, Inc. Strainer housing assembly and stand for 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
US8734098B2 (en) 2008-11-13 2014-05-27 Hayward Industries, Inc. Booster pump system for pool applications
US9651074B2 (en) 2012-09-07 2017-05-16 Herborner Pumpenfabrik Connection system
EP2706275A3 (de) * 2012-09-07 2014-08-06 Herborner Pumpenfabrik J.H. Hoffmann GmbH & Co. KG Anschlusssystem
US10054135B2 (en) 2013-02-23 2018-08-21 Suzhou Cleva Electric Appliance Co., Ltd. Drainage system with filter connection
CN104006003B (zh) * 2013-02-23 2016-12-28 天佑电器（苏州）有限公司 一种排水系统
WO2014127689A1 (zh) * 2013-02-23 2014-08-28 天佑电器（苏州）有限公司 一种排水系统
CN104006003A (zh) * 2013-02-23 2014-08-27 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
CN108204359A (zh) * 2018-01-09 2018-06-26 江苏绩优机电科技有限公司 防爆泵
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
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
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
USD946629S1 (en) 2020-11-24 2022-03-22 Aquastar Pool Products, Inc. Centrifugal pump
US11408441B1 (en) 2020-11-24 2022-08-09 Aquastar Pool Products, Inc. Centrifugal pump
USD971966S1 (en) 2020-11-24 2022-12-06 Aquastar Pool Products, Inc. Centrifugal pump
USD986289S1 (en) 2020-11-24 2023-05-16 Aquastar Pool Products, Inc. Centrifugal pump
US11668329B1 (en) 2020-11-24 2023-06-06 Aquastar Pool Products, Inc. Centrifugal pump
WO2023109253A1 (zh) * 2021-12-17 2023-06-22 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
CN117366003A (zh) * 2023-12-07 2024-01-09 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
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

Also Published As

Publication number Publication date
DE69404817T2 (de) 1997-12-18
ES2076883B1 (es) 1998-10-16
ES2076883A2 (es) 1995-11-01
EP0657602B1 (de) 1997-08-06
DE69404817D1 (de) 1997-09-11
ES2107163T3 (es) 1997-11-16
ES2076883R (de) 1998-02-16

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