EP1170509A2 - Connexion d'aspiration ou de refoulement d'une pompe centrifuge - Google Patents

Connexion d'aspiration ou de refoulement d'une pompe centrifuge Download PDF

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Publication number
EP1170509A2
EP1170509A2 EP01115908A EP01115908A EP1170509A2 EP 1170509 A2 EP1170509 A2 EP 1170509A2 EP 01115908 A EP01115908 A EP 01115908A EP 01115908 A EP01115908 A EP 01115908A EP 1170509 A2 EP1170509 A2 EP 1170509A2
Authority
EP
European Patent Office
Prior art keywords
end part
housing end
flange
fastening
part according
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
EP01115908A
Other languages
German (de)
English (en)
Other versions
EP1170509A3 (fr
EP1170509B1 (fr
Inventor
Per Frost Vedsted
Ryan Sondergaard
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.)
Grundfos AS
Original Assignee
Grundfos AS
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7647984&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1170509(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Grundfos AS filed Critical Grundfos AS
Publication of EP1170509A2 publication Critical patent/EP1170509A2/fr
Publication of EP1170509A3 publication Critical patent/EP1170509A3/fr
Application granted granted Critical
Publication of EP1170509B1 publication Critical patent/EP1170509B1/fr
Anticipated expiration legal-status Critical
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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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially 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
    • F04D29/40—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
    • F04D29/4293—Details of fluid inlet or outlet

Definitions

  • the invention relates to a fluid-conducting housing end part for a centrifugal pump, wherein the housing end part has at least one hole-free connecting flange having a pipe using a mating flange flange-behind clamping means is connectable.
  • Such a fluid-conducting end part is for a generally multi-stage inline centrifugal pump known for the chemical industry.
  • the housing end part has two diametrically opposite connecting pieces with one connection flange each on, these flanges have no mounting holes.
  • On these flanges one line pipe each with a mating flange connected, which also has no mounting holes.
  • the connection of flange and counter flange with each other takes place in that the back of the flanges is slanted is designed to run and that clamps or comparable clamping means can be used, which encompass the flanges and screw against the Flanges are pressed to hold them together.
  • the object of the invention is therefore a fluid-conducting housing end part of the type mentioned in the introduction to improve so that this housing end part also at least one pipe with a connecting flange, which has mounting holes conventional shape and position is provided, can be connected.
  • a centrifugal pump equipped according to the invention is both on the field of the chemical industry, where pumps with hole-free connection flanges be used as well in other areas where piping is used a mating flange with mounting holes are common, for example can be used in heating systems.
  • the fastening screws run through the usual holes in the perforated mating flange of the pipeline to be connected, but on the hole-free one Connection flange of the fluid-carrying housing end part over the outside and engage in the fastening designs of the housing end part provided according to the invention on.
  • the housing end part consist of the attachment training associated with its connecting flange each from a wall recess of the housing end part, which is a laterally open, pocket-like Holder for inserting a screw nut and a passage for the screw bolt engaging in the nut includes.
  • the pocket-like receptacle of the wall cutouts advantageously has a width that is essentially the wrench size of the nut equivalent.
  • the attachment formations in the form of a blind hole with thread in the peripheral wall structure of the housing end part are.
  • the blind hole as such can be poured simultaneously Housing end part are manufactured.
  • the centrifugal pump shown in FIG. 1 only with its lower area is one multi-stage pump known per se and includes a lower fluid-conducting Housing end part 1, the lower end of which carries a pump foot 2 and the upper end with a hollow cylindrical, the individual pump stages 3 with a radial distance surrounding jacket 4 is connected.
  • a So-called inline centrifugal pump the lower end of which is thus two diametrically opposite connection pieces 5 and 6 for suction or Has to convey the medium.
  • the lower end part of the housing is only provided with an inlet connection 5.
  • the Outlet nozzle 6 is then z. B. in a housing end part that at the top End of the multi-stage centrifugal pump is provided, as is also known.
  • the nozzles 5 and 6 each have one Connection flange 7 or 8, which, apart from the respective central Inlet channel 9 and outlet channel 10 is hole-free.
  • it is Back of the flanges are sloping or strongly tapered. pump with such known flanges are mainly in the field of Chemistry used and connected to pipes, their connecting flanges are also hole-free and have a strongly conical back.
  • the attachment in this case the pump flanges on the pipeline flanges take place in a known manner by means of screwable clips or the like, which the reach behind the respective flange pairings and thus the flanges of each pair press together.
  • the lower housing end part 1 has two connecting pieces 5 and 6 with a connecting flange 7 or 8 without mounting holes.
  • each connecting flange two fastening arrangements 11 and 12 arranged opposite one another assigned such a distance from each other that the respective connection flange located between the mounting formations, such that Screw bolts past the respective connection flange into the fastening designs can intervene, as will become clear.
  • Each wall recess includes a laterally open receptacle 14 for insertion a nut and a passage perpendicular to it 15 for screwing a screw bolt into the one inserted in the receptacle Nut.
  • the pocket-like receptacle has such an internal width W. (Fig. 3), which corresponds essentially to the width across flats of the screw nut. This means that the nut also turns when the screw bolt is tightened avoided.
  • the bottom of the pocket-like receptacle 14 with a blind hole recess is advantageous 16 provided so that the end of the bolt, which from of the screw nut protrudes without disturbing influence in the Blind hole can move into it.
  • the fluid-conducting housing end part 1 is through the Process of casting made. It therefore lends itself to the attachment training 11 and 12 in the form of wall recesses during the casting process Cast in the housing end part 1 at the same time, which is why the wall recesses in the peripheral wall structure 13 of the housing end part are formed by casting.
  • fastening formations 11 and 12 is that it is a threaded blind hole 17 in the peripheral wall structure 13 of the housing end part 1 are formed, as is the case in the lower half of FIG. 5 is shown.
  • the blind hole partially when casting the housing end part prepared by either the blind hole as such or just the Quantity of material for the blind hole at the relevant wall point of the housing end part is also cast. In the first case, only the thread needs to be cut to become.
  • Wall recesses or threaded blind holes can also be used that corresponding training in an outer sprue of the peripheral wall structure are provided. Such training is in the upper half of Fig. 5 shown.
  • the pocket-like Wall recesses 14 and 15 in an outer sprue corresponding to that Above mentioned outer sprue 18 may be formed. This embodiment is not shown, but easily understandable for the person skilled in the art.
  • FIG. 2 shows two so-called apart from the housing end part 1 described above and known oval flanges 20 and 21 with two diametrically opposed Mounting holes 22. These oval flanges are known in Way connected to pipes, not shown. There are also two bolts 23 for the left oval flange 20 shown through its mounting holes 22 can be inserted. The same applies to the right oval flange 21. In addition, two sealing rings 24 are shown, each with a sealing ring between a hole-free connecting flange 7,8 and the associated oval flange 20 or 21 is positioned.
  • an upper fluid-conducting housing end part can also be used or a middle housing part for a multi-stage centrifugal pump as above be described.
  • the upper end of the housing or the middle Housing part thus has a pressure port with a connecting flange apart from its pressure outlet, there are no mounting holes for a mating flange has, however, the respective housing part with two opposite Fastening training 11 and 12 provided the desired type.
  • the design according to the invention is also for single-stage centrifugal pumps applicable.
  • the term "housing end part" is in the sense of a To understand the housing end area, since the housing for such pumps together is in one piece with the connecting piece

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP01115908A 2000-07-06 2001-06-29 Connexion d'aspiration ou de refoulement d'une pompe centrifuge Expired - Lifetime EP1170509B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10032835 2000-07-06
DE2000132835 DE10032835C5 (de) 2000-07-06 2000-07-06 Fluidleitendes Gehäuseendteil für eine Kreiselpumpe

Publications (3)

Publication Number Publication Date
EP1170509A2 true EP1170509A2 (fr) 2002-01-09
EP1170509A3 EP1170509A3 (fr) 2004-01-14
EP1170509B1 EP1170509B1 (fr) 2006-03-15

Family

ID=7647984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01115908A Expired - Lifetime EP1170509B1 (fr) 2000-07-06 2001-06-29 Connexion d'aspiration ou de refoulement d'une pompe centrifuge

Country Status (2)

Country Link
EP (1) EP1170509B1 (fr)
DE (2) DE10032835C5 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071592A1 (fr) * 2006-12-14 2008-06-19 Dab Pumps S.P.A. Pompe hydraulique
DE102008013473A1 (de) * 2008-03-10 2009-09-17 Wilo Ag Pumpengehäuse mit verdrehbaren Befestigungsflanschen
EP2112380A1 (fr) * 2008-04-21 2009-10-28 DP Industries B.V. Pompe centrifuge en plusieurs étages en construction en ligne

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008045093B4 (de) 2008-08-29 2015-12-10 Ksb Ag Mehrstufige Kreiselpumpe mit Mantelrohr
CN103398022B (zh) * 2013-08-12 2016-06-01 浙江威格泵业有限公司 一种屏蔽泵的泵头

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1450396A1 (de) * 1963-08-09 1968-11-14 Res & Dev Pty Ltd Dichtverbindung fuer stroemungsfaehige Medien
US3427982A (en) * 1967-09-25 1969-02-18 Flygt Corp Submersible pumps
DE2030027A1 (de) * 1970-06-18 1971-12-30 Rheinhuette Pumpe zur Förderung aggressiver Flüssigkeiten
US3771914A (en) * 1972-05-08 1973-11-13 C Crespo Connecting flange arrangement of submersible pump for fixed discharge outlet
WO1995028596A1 (fr) * 1994-04-19 1995-10-26 Leybold Aktiengesellschaft Assemblage etanche au vide
DE19608706A1 (de) * 1994-09-07 1997-09-11 Kayaba Industry Co Ltd Saugverbinder für eine Pumpe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE378662C (de) * 1923-07-25 Adolf Zeller Abnehmbares Saugrohr fuer Kreiselpumpen
US2858768A (en) * 1954-08-12 1958-11-04 Union Carbide Corp Corrosion resistant pump
DE1082123B (de) * 1956-01-14 1960-05-19 Karl Wernert Kreiselpumpe fuer angreifende Medien

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1450396A1 (de) * 1963-08-09 1968-11-14 Res & Dev Pty Ltd Dichtverbindung fuer stroemungsfaehige Medien
US3427982A (en) * 1967-09-25 1969-02-18 Flygt Corp Submersible pumps
DE2030027A1 (de) * 1970-06-18 1971-12-30 Rheinhuette Pumpe zur Förderung aggressiver Flüssigkeiten
US3771914A (en) * 1972-05-08 1973-11-13 C Crespo Connecting flange arrangement of submersible pump for fixed discharge outlet
WO1995028596A1 (fr) * 1994-04-19 1995-10-26 Leybold Aktiengesellschaft Assemblage etanche au vide
DE19608706A1 (de) * 1994-09-07 1997-09-11 Kayaba Industry Co Ltd Saugverbinder für eine Pumpe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071592A1 (fr) * 2006-12-14 2008-06-19 Dab Pumps S.P.A. Pompe hydraulique
DE102008013473A1 (de) * 2008-03-10 2009-09-17 Wilo Ag Pumpengehäuse mit verdrehbaren Befestigungsflanschen
EP2112380A1 (fr) * 2008-04-21 2009-10-28 DP Industries B.V. Pompe centrifuge en plusieurs étages en construction en ligne

Also Published As

Publication number Publication date
DE50109195D1 (de) 2006-05-11
EP1170509A3 (fr) 2004-01-14
DE10032835C2 (de) 2003-11-13
EP1170509B1 (fr) 2006-03-15
DE10032835A1 (de) 2002-01-24
DE10032835C5 (de) 2008-07-03

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