EP2591237A1 - Kreiselpumpe - Google Patents
KreiselpumpeInfo
- Publication number
- EP2591237A1 EP2591237A1 EP11724226.3A EP11724226A EP2591237A1 EP 2591237 A1 EP2591237 A1 EP 2591237A1 EP 11724226 A EP11724226 A EP 11724226A EP 2591237 A1 EP2591237 A1 EP 2591237A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- centrifugal pump
- pump according
- housing
- pressure
- 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
Links
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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal 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
- 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
-
- 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
- F04D29/40—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
- F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal
-
- 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
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
- F05D2230/31—Layer deposition
-
- 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
- F05D2260/00—Function
- F05D2260/95—Preventing corrosion
-
- 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
- F05D2300/10—Metals, alloys or intermetallic compounds
-
- 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
-
- 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
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/915—Pump or portion thereof by casting or molding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
- Y10T29/49243—Centrifugal type
Definitions
- the invention relates to a centrifugal pump, comprising a rotor and a surrounding this housing, each having a pressure and suction port, a method for producing such a centrifugal pump, and a kit for such a centrifugal pump.
- Centrifugal pumps are known in numerous construction methods. Housing form, impeller detail and seal have been the subject of extensive research and development in recent decades. This led to a continuous improvement, so that very well adapted centrifugal pumps are available for many different applications.
- the robust technology is used in plant construction, mechanical engineering, water supply and agricultural irrigation.
- the following invention has for its object to provide a centrifugal pump comprising a running gear, consisting of an impeller, a seal, and optionally a shaft, and a surrounding this housing, each with a pressure and suction side connection, the above-mentioned disadvantages should be overcome.
- a method for producing such a centrifugal pump to be developed.
- the housing surrounding the running gear is constructed as a composite part, wherein a first thin-walled layer specifies the inner shape of the housing, wherein at least one second layer produces the stability of the housing.
- a first thin-walled layer specifies the inner shape of the housing, wherein at least one second layer produces the stability of the housing.
- the first layer is formed from a corrosion-resistant metal or a fiber-reinforced plastic.
- the first layer is in direct contact with the pumped fluid.
- Such a design protects the layer from corrosion by the fluid. For example, in the promotion of drinking water by the corrosion protection prevents the water is contaminated.
- Further savings in the transport of the necessary parts for the pump allows an embodiment, according to which the first layer is composed of individual housing shapes representing the segments. This also allows a precise adaptation to the hydraulic requirements that are placed on the centrifugal pump. By combining different standardized one-time parts, different housings can thus be produced simply and inexpensively.
- the first layer is formed from an elastomer. This creates a first layer that defines the inner contour of the pump housing, which can be packed very compactly.
- the first layer can be filled with a medium, whereby it receives its intended shape, which is fixed to the second layer.
- a space is provided within the first layer which can be shaped by filling with a medium. This is particularly useful when the pressure of the medium is greater than the ambient pressure.
- the elastomeric first layer is made in the production with areas of different thickness, whereby deformations are achievable, which determine the hydraulic properties of the housing.
- a valve is incorporated in the first layer, which holds the pressure of the medium and at the same time displays, in particular, a display in addition to the pure pressure values, the housing configuration or the operating point set therewith.
- the applied pressure can be displayed directly without further aids.
- Various pump configurations can be adjusted directly by the corresponding internal pressure, since in particular the pump space around the impeller in its size and shape can be set differently by the application of the media pressure. After completion of the pump, the display can be used during operation to monitor the operating state of the pump.
- a particularly simple form of the design provides a propellant, which is supplied with the necessary medium under appropriate pressure, so that on-site, the building of the internal pressure by means of external compressors or pumps is not necessary.
- sensor is provided on the outside of the first layer to monitor the operation of the pump, which hides directly in the pump housing after application of the second layer. As a result, for example, wear and corrosion of the inner shell can be detected.
- the second layer consists of a material plastically molded onto the first layer.
- the material of the second layer it is necessary for the material of the second layer to conform to the surface of the first layer.
- a material is suitable, which is poured in a liquid state on the first layer and then solidified there.
- plastic moldable material are plastics, metals, mineral materials or mixtures of materials.
- a material for the second layer which can be cast in liquid form onto the first layer.
- casting resins with different fillers liquid metal are suitable, in which case pay attention to the heat resistance of the first layer, or concrete.
- the plastically moldable material is reinforced by reinforcements. This increases the stability of the housing, while at the same time reducing the thickness of the housing.
- the material of the first layer is double-layered.
- the second layer is then placed between the two layers of the first layer. This makes it possible to specify the outer shape of the pump more accurately and the second layer is also protected from the outside against media.
- Suitable materials for the production of the second layer are constituents which are optionally obtained from renewable raw materials. Fibers, binders or fillers can be obtained from different plants. These are readily available in many places, which is why the production is particularly favorable, since local resources can be used both in the cultivation and in the extraction of the substances.
- a method for producing a centrifugal pump according to the invention provides to align all tolerance ranges with respect to the shaft in a first step.
- the first layer is pressure-tightly fixed with respect to the tolerance ranges
- the first layer is filled from the inside with a medium and pressurized
- the second layer is applied.
- a hydraulically advantageous shape in the first layer is produced in the third step by applying a predetermined pressure.
- the advantage here is that the inner geometry of the housing by means of Pressure, which is given to the medium in the third step, can be specified very precisely, whereby the flow control is optimally adapted to the centrifugal pump properties.
- the pressure is read directly.
- the housing configuration or the operating point set therewith can be read off.
- the first thin-walled layer is additionally coated with a second layer, whereby the necessary stiffening of the housing is achieved.
- the support structure is coated with the second layer, the first layer as a permanent formwork forms a component of the composite material.
- the second layer provides protection against the harsh environmental conditions and absorbs the attacking forces.
- the second layer is still solidified after application, in particular by curing, firing or sintering.
- further processing of the housing may provide additional benefits to the housing.
- the second layer can be made more stable against mechanical or chemical influences by this step.
- the connection between the first and the second layer can be improved.
- a kit for producing a centrifugal pump comprising different components.
- the kit according to the invention comprises the running gear and the first layer, wherein the running gear consists of impeller and seal.
- the advantage here is that a simple and inexpensive basic package for the production of a functional centrifugal pump is put together. The missing components are purchased from local suppliers during construction of the centrifugal pump. The cost of transporting the kit can thus be kept low. In close proximity to the end user are local Resources usable. This is particularly advantageous in countries with a relatively low technical infrastructure.
- the running gear additionally includes a shaft. Since the production of the shaft is subject to a demanding dimensional tolerance, it is advantageous to attach these to the kit. In addition, the other components of the centrifugal pump can already be pre-assembled on the shaft.
- the shaft is stably stored.
- the stability of the pump is significantly increased by a shaft bearing. If the shaft bearing is already preassembled on the time, so here no additional installation and adjustment is required.
- the outer packaging of the kit serves as a mold for the second layer.
- the advantage here is that the outer packaging is adaptable to the requirements of a mold.
- Both the surface and the stability of the outer packaging can be adapted by the manufacturer of the kit to the requirements of the casting process. For example, markings for certain dimensions, such as position of the shaft or connecting flanges or the maximum filling height for the material of the second layer can be attached.
- Figure 3 shows a first embodiment of a finished pump
- Figure 4 shows a second embodiment of a finished pump.
- FIG. 1 shows an embodiment of a centrifugal pump according to the invention.
- an impeller 2 is attached at the left end of a shaft 1.
- a seal 3 is arranged at the left end of a shaft 1.
- Shown in FIG. 1 is a bellows-type mechanical seal.
- the part of the gasket 3 which is adjacent to the impeller 2 is fixedly connected to the shaft and rotates with it.
- the stationary part of the mechanical seal connected to a housing is arranged on the far right.
- two bearings 4 are arranged on the shaft 1.
- a first layer 5 envelops the parts and forms the inner wall of the pump housing.
- the first layer 5 is directly connected to a few pump parts, wherein the first layer 5 can also be designed in several parts, wherein the individual parts are each arranged pressure-tight between two stationary parts of the running tool.
- the first layer 5 is connected directly to the stationary part of the seal 3.
- This simple and very effective connection saves additional sealant !, such as O-rings.
- the two split rings 6 and 7 are shown in FIG. These are also connected by a simply detachable connection to the impeller 2. These connections serve as an assembly aid. Until the completion of the centrifugal pump, the split rings are firmly in place, ensuring the required dimensional accuracy.
- the connections of the pump to the first layer 5 are provided.
- a suction nozzle 8 in extension to the shaft 1 and a discharge nozzle 9 are shown. Both sockets are firmly connected to the first layer 5.
- the first layer 5 By connecting the first layer 5 with the bearings 4, two more spaces are created, between the seal 3 and the first bearing 4 and between the two bearings 4.
- the first layer 5 consists of a deformable material, which can be applied close to the period 1. This makes it possible to pack the semi-finished centrifugal pump for shipping very small.
- FIG. 2 shows a semi-finished centrifugal pump according to the third step of the method for producing a centrifugal pump according to the invention.
- the first layer is filled from the inside with a medium and pressurized.
- the connections for pressure equalization between the individual areas, as well as the closures of the pressure and suction nozzles are not shown in the figure 2.
- the inner shape of the housing is thus clearly defined.
- FIG. 3 shows a first embodiment of a finished pump.
- the semifinished component shown in FIG. 2 was completely encapsulated in the shipping carton (not demarcated) with a second layer 11.
- This form of the second layer 11 is the easiest to produce, since no requirements, except for a material-dependent minimum wall thickness, are imposed on the external appearance of the pump.
- concrete may be used as the material for the second layer.
- materials such as clay mixed with fibers, synthetic resin or comparable castable materials which solidify.
- additional reinforcing elements on the stationary parts 3, 4, 6, 7, 8, 9. are firmly connected to the stationary parts and project into the region of the second layer 1 1, whereby the positioning and the hold of the stationary Teiie in the finished centrifugal pump are improved.
- FIG. 4 shows a second embodiment of a finished pump.
- an additional jacket layer 12 was provided in this embodiment, which also consists of flexible material, so that the advantage of the compact packaging is maintained during transport.
- the second layer 11 between the first layer 5 and the cladding layer 12 was introduced in this embodiment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010026448A DE102010026448A1 (de) | 2010-07-08 | 2010-07-08 | Kreiselpumpe |
| PCT/EP2011/059587 WO2012004080A1 (de) | 2010-07-08 | 2011-06-09 | Kreiselpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2591237A1 true EP2591237A1 (de) | 2013-05-15 |
| EP2591237B1 EP2591237B1 (de) | 2020-07-22 |
Family
ID=44475169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11724226.3A Active EP2591237B1 (de) | 2010-07-08 | 2011-06-09 | Kreiselpumpe |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8851834B2 (de) |
| EP (1) | EP2591237B1 (de) |
| CN (1) | CN103097738B (de) |
| DE (1) | DE102010026448A1 (de) |
| WO (1) | WO2012004080A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170082070A1 (en) * | 2012-04-17 | 2017-03-23 | Timothy J. Miller | Turbopump with a single piece housing and a smooth enamel glass surface |
| DE102013008795B3 (de) * | 2013-05-24 | 2014-08-21 | Ksb Aktiengesellschaft | Pumpenanordnung |
| US20160061222A1 (en) * | 2014-09-03 | 2016-03-03 | Jeffrey William Robinson | Composite fan housing and method |
| DE102015010728A1 (de) * | 2015-08-17 | 2017-02-23 | Thomas Magnete Gmbh | Motorpumpenaggregat |
| CN106224245A (zh) * | 2016-09-23 | 2016-12-14 | 兰州理工大学 | 一种创新型叶片的离心泵 |
| DE102020119914A1 (de) * | 2020-07-28 | 2022-02-03 | KSB SE & Co. KGaA | Gehäuse für strömungsführende Bauteile |
| US12179425B2 (en) | 2023-02-01 | 2024-12-31 | Hamilton Sundstrand Corporation | Metal plated additively manufactured plastic rotor shrouds and their method of manufacturing |
| US12421859B2 (en) * | 2023-02-01 | 2025-09-23 | Hamilton Sundstrand Corporation | Metal plated additively manufactured plastic seal plates and their method of manufacturing |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3607600A (en) * | 1969-07-15 | 1971-09-21 | Hauck Mfg Co | Composite molding process and product |
| DE2103331A1 (en) * | 1971-01-25 | 1972-08-10 | Hauck Mfg Co | Moulding abrasion resistant articles |
| US4207025A (en) * | 1979-01-22 | 1980-06-10 | Aerojet-General Corporation | Inflatable fan housing |
| JPS58117392A (ja) * | 1981-12-30 | 1983-07-12 | Ebara Corp | 流体機械のケ−シング |
| FI92860C (fi) * | 1985-06-10 | 1995-01-10 | Baker Huges Inc | Vaihdettava elastomeerivuoraus keskipakopumppua varten |
| DE4036364A1 (de) * | 1990-11-15 | 1992-05-21 | Abs Pumpen Ag | Formverfahren fuer eine kreiselkammer |
| DE19811598C2 (de) * | 1998-03-17 | 1999-12-23 | Siemens Ag | Kühlwasserpumpe und Verfahren zu deren Herstellung |
| DE102006010461B3 (de) * | 2006-03-03 | 2007-10-25 | Woco Industrietechnik Gmbh | Kunststoffverdichtergehäuse |
| DE102007009781B4 (de) * | 2007-02-27 | 2009-09-17 | Woco Industrietechnik Gmbh | Kunststoffverdichtergehäuse sowie Verfahren zu dessen Herstellung |
-
2010
- 2010-07-08 DE DE102010026448A patent/DE102010026448A1/de not_active Withdrawn
-
2011
- 2011-06-09 WO PCT/EP2011/059587 patent/WO2012004080A1/de not_active Ceased
- 2011-06-09 CN CN201180033737.8A patent/CN103097738B/zh active Active
- 2011-06-09 EP EP11724226.3A patent/EP2591237B1/de active Active
-
2013
- 2013-01-07 US US13/735,401 patent/US8851834B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012004080A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012004080A1 (de) | 2012-01-12 |
| US20130121817A1 (en) | 2013-05-16 |
| DE102010026448A1 (de) | 2012-01-12 |
| CN103097738A (zh) | 2013-05-08 |
| US8851834B2 (en) | 2014-10-07 |
| EP2591237B1 (de) | 2020-07-22 |
| CN103097738B (zh) | 2017-04-05 |
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