EP0849473A1 - Cater de pompe centrifuge - Google Patents

Cater de pompe centrifuge Download PDF

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Publication number
EP0849473A1
EP0849473A1 EP97119865A EP97119865A EP0849473A1 EP 0849473 A1 EP0849473 A1 EP 0849473A1 EP 97119865 A EP97119865 A EP 97119865A EP 97119865 A EP97119865 A EP 97119865A EP 0849473 A1 EP0849473 A1 EP 0849473A1
Authority
EP
European Patent Office
Prior art keywords
housing
outer housing
shaft
centrifugal pump
housing part
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Withdrawn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
EP97119865A
Other languages
German (de)
English (en)
Inventor
Axel Riel
Frank Schwaab
Armin Dr. Renneisen
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.)
KSB AG
Original Assignee
KSB AG
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 KSB AG filed Critical KSB AG
Publication of EP0849473A1 publication Critical patent/EP0849473A1/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Withdrawn legal-status Critical Current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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • 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
    • 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
    • F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
    • 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 invention relates to a centrifugal pump, the housing of which consists of a multi-part There is an outer housing and an inner housing surrounded by it Drive means at least one impeller located within the housing drives a shaft and a shaft seal between the shaft and the housing is arranged.
  • the inner housings are wholly or partially surrounded by an outer metallic housing. Trained as socks Entry and exit openings of the housing can also be lined be provided.
  • the housings have a for mounting the impellers Housing cover on.
  • a metallic outer housing still has about additional external attachments that are used for the storage and sealing of a Pump shaft are necessary. This requires high manufacturing accuracy in order to prevent a misalignment caused by a misalignment during assembly the parts lead to leaks in the housing.
  • DE-U-91 11 157 makes such a pump housing a one-stage design known, on the pressure side housing cover, a shaft seal housing and a bearing bracket are screwed on as separate components. With the help of a Coupling is flanged to a drive motor, with accurate positioning the individual parts must take place so that no additional burdens on the Pump housing can act.
  • the inner casing and the impeller consist of a resistant plastic and enables the promotion of aggressive or corrosive liquids.
  • the outer housing is used for Absorption of the forces acting on the pump. As a result of the many The connection points of the individual parts forming the housing are high Manufacturing quality required to ensure the necessary tightness of the housing receive.
  • a heating circulation pump in which in a outer, multi-part sheet metal housing several flow-leading Plastic inserts are used.
  • the sheet metal housing has one molded connection flange of larger outside diameter for Connection with a canned motor.
  • the plastic insert is only used for Flow guidance within the housing. This is for aggressive media Pump is not suitable because the canned motor flows through the pumped medium and its parts are not protected.
  • a pressure cover one Pump housing or a bearing bracket flange of a pump shaft bearing have several fit diameters as standard on one part, which with a standardized fit diameter of the other part work together. This construction also requires high manufacturing quality, to reliably seal the housing.
  • the invention is based on the problem for equipped with inner housings Centrifugal pumps to develop a design principle with the help of little complex centering of the parts and a high level Sealing effect is achieved.
  • the solution of this invention provides that one closest to the drive Impeller wholly or partially surrounded by a one-piece outer housing part is, the outer housing part a peripheral part, an end Housing part, a shaft seal chamber and a flange connection for Connected to an engine or a bearing bracket.
  • this Measure can be ensured that the for the storage of the Pump shaft, the shaft seal and the drive motor or one Bearings required fit points only on a single component must be attached. This can also be done on a processing machine in one setting. Due to the one-piece construction, this is no longer necessary usual fit and seal point between a pressure side Housing cover and a drive motor to be attached or Bearing bracket. Furthermore, such a one-piece outer housing part a casting technical production are easier to produce. It shows none Undercuts more and thus reduces the effort for one casting manufacturing. Elaborate core constructions and their Outriggers are no longer required.
  • An embodiment of the invention provides that the inner housing by a two-part outer housing is surrounded, the parting line for the Division of the housing in the impeller plane or moved parallel to it runs.
  • One on one Inner housing directly molded lining for an inlet or outlet opening is then very easy to insert into the associated part of the outer housing. This is advantageous when using hard plastic materials. Using of soft plastic materials, it is not a problem to make a molded one Lining part of the inner housing in the corresponding room of the Push in the outer housing.
  • one is in one piece Outer housing part attachable, closing the shaft seal space Housing element as centering and / or holder for an inner housing part educated.
  • the inner housing which is divided to accommodate an impeller is formed, covers the entire area of the shaft seal space. This component must be held securely in position in order to prevailing flow conditions within the pump housing To prevent detachment from the outer housing part. If the inner housing part should remain permanently in the one-piece outer housing part, it can by corresponding positive projections are held.
  • the from Shaft seal space formed on the outer housing part faces the drive side open and closable by a housing element. This makes one Access to the inner housing and allows its removal from the one-piece Outer housing part. Please better formulate or add to the characteristic of Shaft seal.
  • a shaft driving the impeller can be inserted as a stub shaft in the one-piece Protrude from the outer housing part.
  • An extended stub shaft can also be a Drive machine penetrate the outer housing part.
  • a bearing bracket with a bearing Pump shaft or a so-called block motor can be connected directly.
  • FIG. 1 shows a centrifugal pump with a housing 1, which consists of a two-part outer housing 2, 3 and also here in two parts trained inner housing 4, 5.
  • a housing 1 which consists of a two-part outer housing 2, 3 and also here in two parts trained inner housing 4, 5.
  • the impeller 6 is connected by a connection 7 with one shown here Stub shaft 8 in operative connection.
  • a wall 9 which in the previous pumps was designed as a separate item.
  • a tubular section 10 of a Connection flange 11 formed.
  • a block motor 12 designed as a standard motor.
  • Whose shaft end 13 acts to transmit forces with a coupling part 14 Stub shaft 8 together.
  • the tubular section 10 can be opened 15 have accessibility to that encased by the connecting flange 11 Ensure interior 16.
  • the one-piece outer housing part 3 results in a component that is light on the one hand guaranteed casting technology production and on the other hand the production of the guide and fit points necessary for the tightness of the housing in only enables a single clamping. In addition to the guaranteed cheaper manufacturing by processing only a single component results a better quality of the fits at the joints.
  • This one selected division level 20 between the outer housing parts 2, 3 runs in this example as two-part formed by the pressure port Connection piece 21, 22.
  • the cohesion of the outer housing causes known connecting elements 23, which are drawn here with dashed lines.
  • the Partition plane 20 can also be in a plane displaced parallel to the impeller 6 to be ordered.
  • the housing structure shown is not on centrifugal pumps single-stage construction limited.
  • the one arranged here on the pressure side Outer housing part 3 can also be connected to centrifugal pump housings, in which a multi-stage structure is provided.
  • Figures 2 and 3 correspond in principle to the representation of Fig. 1. Der The difference in Fig. 3 is that on the connecting flange 11 of the Outer housing part 3, a bearing bracket 25 is attached. This bearing bracket 25 is used in centrifugal pumps with a higher drive power to ensure a stable Obtain storage of the pump shaft 26.
  • the bearing bracket 25 is with the various drive machines can be connected.
  • a block motor 27 takes place instead of a bearing bracket Use whose shaft 28 is extended and at the same time as a pump shaft serves. This enables a very short and stiff pump unit to be manufactured. The distance between the bearing bracket 25 to be connected or the motor 27 is then only depends on the space that has access to it Housing element 17 and its fasteners guaranteed.
  • a shaft seal space 29 enclosed by the outer housing part is formed through the inner housing 5 and the housing element 17, which is part of the Outer housing 3 is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP97119865A 1996-12-21 1997-11-13 Cater de pompe centrifuge Withdrawn EP0849473A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19653936A DE19653936A1 (de) 1996-12-21 1996-12-21 Kreiselpumpengehäuse
DE19653936 1996-12-21

Publications (1)

Publication Number Publication Date
EP0849473A1 true EP0849473A1 (fr) 1998-06-24

Family

ID=7815955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119865A Withdrawn EP0849473A1 (fr) 1996-12-21 1997-11-13 Cater de pompe centrifuge

Country Status (2)

Country Link
EP (1) EP0849473A1 (fr)
DE (1) DE19653936A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004111464A1 (fr) * 2003-06-13 2004-12-23 Arcelik Anonim Sirketi Pompe
EP2236839A1 (fr) 2009-04-04 2010-10-06 Grundfos Management A/S Agrégat de pompe centrifuge
CN102840981A (zh) * 2012-09-07 2012-12-26 广东明阳风电产业集团有限公司 一种风力发电机组齿轮箱试验台后端密封盖

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014220364A1 (de) 2014-10-08 2016-04-14 Ksb Aktiengesellschaft Kreiselpumpe

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1017364A (fr) * 1950-05-09 1952-12-09 Equip Ind Laitieres Et Agricol Pompe centrifuge comportant des éléments en acier inoxydable
FR1071310A (fr) * 1952-12-16 1954-08-30 Pompes centrifuges de petit et moyen débit, à garniture rotative, pour produits chimiques ou alimentaires
FR1442082A (fr) * 1965-08-03 1966-06-10 Jenaer Glas Schott Gen Veb Joint d'anneau de garniture applicable à des pompes centrifuges
DE2045685A1 (de) 1970-09-16 1972-05-31 Klein Schanzlin & Becker Ag Kreiselpumpengehäuse
GB1315006A (en) * 1969-05-09 1973-04-26 Nash Engineering Co Liquid ring pumps
DE3011888A1 (de) 1980-03-27 1981-10-01 Richard 7066 Baltmannsweiler Halm Kreiselpumpe
US4955793A (en) * 1988-08-17 1990-09-11 Nowax S.R.L. Turbopump and similar operating machine with sealing connection structure to the motor
DE9111157U1 (fr) 1991-09-09 1993-01-14 Wernert-Pumpen Gmbh, 4330 Muelheim, De

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146722A (en) * 1960-01-19 1964-09-01 Res & Dev Pty Ltd Centrifugal pumps and the like
CH382567A (it) * 1961-02-17 1964-09-30 Gabbioneta Roberto Pompa per fluidi
DE1275865B (de) * 1966-12-16 1968-08-22 Siemens Ag Kreiselpumpenkunststoffgehaeuse
US3819297A (en) * 1972-09-11 1974-06-25 Gen Gas Light Co Centrifugal pump assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1017364A (fr) * 1950-05-09 1952-12-09 Equip Ind Laitieres Et Agricol Pompe centrifuge comportant des éléments en acier inoxydable
FR1071310A (fr) * 1952-12-16 1954-08-30 Pompes centrifuges de petit et moyen débit, à garniture rotative, pour produits chimiques ou alimentaires
FR1442082A (fr) * 1965-08-03 1966-06-10 Jenaer Glas Schott Gen Veb Joint d'anneau de garniture applicable à des pompes centrifuges
GB1315006A (en) * 1969-05-09 1973-04-26 Nash Engineering Co Liquid ring pumps
DE2045685A1 (de) 1970-09-16 1972-05-31 Klein Schanzlin & Becker Ag Kreiselpumpengehäuse
DE3011888A1 (de) 1980-03-27 1981-10-01 Richard 7066 Baltmannsweiler Halm Kreiselpumpe
US4955793A (en) * 1988-08-17 1990-09-11 Nowax S.R.L. Turbopump and similar operating machine with sealing connection structure to the motor
DE9111157U1 (fr) 1991-09-09 1993-01-14 Wernert-Pumpen Gmbh, 4330 Muelheim, De

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004111464A1 (fr) * 2003-06-13 2004-12-23 Arcelik Anonim Sirketi Pompe
EP2236839A1 (fr) 2009-04-04 2010-10-06 Grundfos Management A/S Agrégat de pompe centrifuge
CN102840981A (zh) * 2012-09-07 2012-12-26 广东明阳风电产业集团有限公司 一种风力发电机组齿轮箱试验台后端密封盖

Also Published As

Publication number Publication date
DE19653936A1 (de) 1998-06-25

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