CN101622456B - Centrifugal pump comprising a spiral housing - Google Patents
Centrifugal pump comprising a spiral housing Download PDFInfo
- Publication number
- CN101622456B CN101622456B CN2008800067362A CN200880006736A CN101622456B CN 101622456 B CN101622456 B CN 101622456B CN 2008800067362 A CN2008800067362 A CN 2008800067362A CN 200880006736 A CN200880006736 A CN 200880006736A CN 101622456 B CN101622456 B CN 101622456B
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- housing parts
- sealing
- rotor
- chamber
- 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.)
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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
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/0626—Details of the can
-
- 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
- F04D29/08—Sealings
- F04D29/086—Sealings 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
-
- 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
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a centrifugal pump comprising a spiral housing consisting of a first housing part (1) and a second housing part (2), the latter (2) being tubular and delimited in a region facing away from the inlet E of the inflowing medium in order to receive the rotor (3) in its interior in a wet chamber N. A stator (4) surrounds the second housing part (2) and is situated in the dry chamber T in the vicinity of the exterior of the rotor (3). The tubular delimitation of the second housing part (2) is provided with a cover (5), a first seal (6) being located between the cover (5) and the second housing part (2). Said seal comes into contact with the environment on at least one side facing away from the wet chamber N. The invention also relates to the use of the centrifugal pump as a coolant centrifugal pump in a motor vehicle.
Description
Technical field
The present invention relates to a kind of centrifugal pump with spiral case.The invention still further relates to the application of this centrifugal pump.
Centrifugal pump with spiral case is known.In DE 103 47 302 A1, described a kind of two-part spiral case that is used for centrifugal pump, this spiral case has carried out optimized design by fluidics.Such centrifugal pump is motorized motions normally, and wherein the stator arrangement of motor is being done in the chamber, and rotor arrangements is in wet chamber.Therefore rotor rotates in wet chamber, this wet chamber by the flowing medium that will carry carry out washing-round.Do chamber and wet chamber and separated by the chink type pipe of independent layout, wherein disadvantageous is between one of them part of spiral case and chink type pipe, to arrange seal element, does the chamber to avoid liquid or steam to enter into from wet chamber.Under working time longer situation, promptly when Sealing also becomes cellular at leisure, perhaps act under the situation of the vibration on the centrifugal pump in existence, usually can not stop more a large amount of liquid to enter into and do the chamber and fill with this dried chamber.This has caused the bigger damage to stator and electronic component so, and except stator, this electronic component equally also is arranged in to be done in the chamber.
DE 42 17 457 A1 have described a kind of centrifugal pump of characteristic of the preamble with claim 1.A kind of similar centrifugal pump also can be from US 3,053, and 189A is known.EP 1 437 819 A1 have described a kind of centrifugal pump, and the rotor chamber of in this pump, being filled with is used the embolism locking in the end face side.
Summary of the invention
Therefore the objective of the invention is to, proposes a kind of centrifugal pump, in this centrifugal pump, avoided fully flowing in the dried chamber, thereby and avoided dried chamber to be filled with fully from liquid round the wet chamber of rotor with spiral case.
The centrifugal pump of the characteristic of the object of the invention through having claim 1 is realized.
Second housing parts is designed to tubulose and therefore bears the function of chink type pipe in its location that deviates from the inlet E that flows through the medium that comes, yet has abandoned its additional independent layout fully.First Sealing is connected with surrounding environment at least one deviates from the side of wet chamber N.This means: at least a portion of Sealing directly contacts with ambient air; Or the liquid of in case of emergency crossing the outside outflow of Sealing can directly enter into surrounding environment.Demonstrated astoundingly already: can avoid liquid to enter into by this way fully and do chamber T, and therefore can avoid filling with dried chamber T fully from wet chamber N.Through having guaranteed first Sealing and being connected advantageously of surrounding environment, promptly after longer working time under the situation that first Sealing damages, partially liq directly flows out in the surrounding environment and therefore can not enter into does chamber T.Can advantageously avoid the damage of stator and the damage of other electronic components in dried chamber T by this way.
According to a preferred design proposal of the present invention, first Sealing is connected through in lid or at passage that covers or through hole, realizing with surrounding environment.By this way, first Sealing can be connected with surrounding environment simple relatively and no problemly, and this can make different seal elements be advantageously used for first Sealing.
Another preferred design proposal according to the present invention is designed to: be furnished with second Sealing in the zone on the tubulose border of second housing parts between the motor field frame and second housing parts.So advantageously realized: even the steam flow of a little also can avoid entering into dried chamber T.Thereby the adiabatic drying that advantageously keeps doing the chamber through this measure.When the medium that flows contains when being corrosive composition, then this is particularly advantageous.
According to another preferred design proposal of the present invention, be furnished with O shape ring-Sealing respectively as first Sealing and second Sealing.Can be advantageously at this, first Sealing and second Sealing directly are arranged on second housing parts with the form of O shape ring-Sealing relative to one another, however this is not that pressure is essential.Then, first Sealing is with the arranged in form of the O shape ring inwall place on the tubulose border of second housing parts.Then, second Sealing is with the arranged in form of the O shape ring outer wall place on the tubulose border of second housing parts.This measure makes the manufacturing of centrifugal pump become easy.
Another preferred design proposal of the present invention is designed to: second housing parts has clutch shaft bearing and lid has second bearing, to be used for rotatably support rotor.At this, lid can constitute second bearing itself, or only is used for holding of such bearing.At this advantageously, can abandon additionally in centrifugal pump inside, arranging special bearer ring.
According to another preferred design proposal of the present invention, it is arc and perpendicular to the border of flowing through the flow direction of the medium that comes from inlet E that second housing parts externally has longitudinal profile in the zone.At this, the accurate curve shape on the border of arc carries out optimized design according to the angle of fluidics according to engineering science.By this way, but the structure space advantageous particularly of centrifugal pump reduce to minimum.
At last, the invention still further relates to centrifugal pump as the application of cooling water centrifugal pump in Motor Vehicle.Cooling water centrifugal pump in Motor Vehicle must move on fault-free ground in long working time, does filling with of chamber T in any case wherein all must stop.So it is particularly advantageous that centrifugal pump is used in Motor Vehicle as the cooling water centrifugal pump.
Description of drawings
Followingly come in detail and exemplarily to explain the present invention according to accompanying drawing (Fig. 1 to Fig. 3).
Fig. 1 shows the three-dimensional longitudinal profile of centrifugal pump;
Fig. 2 shows the three-dimensional longitudinal profile of the centrifugal pump of exploded view form;
Fig. 3 shows the three-dimensional longitudinal profile according to the centrifugal pump of existing technology.
Embodiment
The three-dimensional longitudinal profile of centrifugal pump has been shown in Fig. 1.Centrifugal pump has spiral case; This spiral case comprises first housing parts 1 and second housing parts 2; Wherein second housing parts 2 is designed to tubulose in the location that it deviates from the inlet E of the medium that flows through, and is used for that inside holds the rotor 3 that is positioned in the wet chamber N and at this location limited boundary.The medium that flows is represented with thick arrow at this.Around second housing parts 2, the T lining is equipped with stator 4 in dried chamber at the region exterior of rotor 3.Be furnished with at the tubulose boundary of second housing parts 2 and cover 5, wherein between lid 5 and second housing parts 2, be furnished with first Sealing 6, this first Sealing is connected with surrounding environment at least one deviates from the side of the chamber N that wets.First Sealing 6 is connected this through covering the passage 5 ' realization on 5 with surrounding environment.Stator 4 is externally centered on by motor field frame 7.Be furnished with second Sealing 8 in the zone on the tubulose border of second housing parts between the motor field frame 7 and second housing parts 2.First Sealing 6 and second Sealing 8 are respectively with the form setting of O shape ring-Sealing.Second housing parts 2 has clutch shaft bearing 2
*Has second bearing 5 with lid 5
*, to be used for rotatably support rotor 3.Can abandon the bearer ring that adds thus fully.It is arc and perpendicular to the border 2 of flowing through the flow direction of the medium that comes from inlet E that second housing parts 2 externally has longitudinal profile in the zone
*If first Sealing 6 is for example becoming cellular than long running after the time, liquid enters into through first Sealing 6 and is shown as the passage 5 ' that is connected with surrounding environment so.Therefore, liquid directly is discharged in the surrounding environment, and this representes with thin arrow.By this way, can not enter into from the liquid of wet chamber N (in this wet chamber, being furnished with rotor 3) and to do chamber T, thereby avoid filling with of dried chamber T fully.Avoided through second Sealing 8 is set in addition, promptly the steam of the effusion of a little part enters into and does chamber T, and when liquid contains when being corrosive composition, then this is particularly advantageous.Therefore can keep doing chamber T bone dry by this way.
The three-dimensional longitudinal profile of the centrifugal pump of exploded view form has been shown in Fig. 2.Second housing parts 2 is designed to tubulose and limited boundary in this zone being used for the zone that inside holds rotor 3.First Sealing 6 and second Sealing 8 are designed to O shape ring-Sealing.
Three-dimensional longitudinal profile according to the centrifugal pump of existing technology has been shown in Fig. 3.Centrifugal pump according to existing technology has spiral case, and this spiral case comprises the first housing parts 1b and the second housing parts 2b.The liquid fed sheet of a media (representing with thick arrow) of treating enters into wet chamber Nb through inlet Eb, and rotor 3b rotatably is placed in this wet chamber.At the region exterior of rotor 3b, the Tb lining is equipped with stator 4b in dried chamber.At this, do chamber Tb and close with respect to surrounding environment through motor field frame 7b.According to existing technology; Wet chamber Nb and dried chamber Tb separate through the disadvantageous layout of chink type pipe 9b; Wherein the liquid from wet chamber Nb possibly enter into dried chamber Tb through the disadvantageous layout of seal ring 10b, and the sealing ring is arranged between the chink type pipe 9b and the second housing parts 2b.This has caused the disadvantageous of dried chamber Tb to be filled with thereupon, and this for example just may take place when being subjected to stronger vibration when centrifugal pump is in operation.May enter into dried chamber Tb with thin arrow express liquid.Possible the filling with of doing chamber Tb caused the coup injury of stator 4b and other electronic component (not shown), and this is able to avoided through centrifugal pump according to the present invention.
Claims (12)
1. centrifugal pump with spiral case; Said spiral case comprises first housing parts (1) and second housing parts (2); The location that wherein said second housing parts (2) flows through the inlet E of the medium that comes in deviating from of said second housing parts is designed to tubulose; Be used for that inside holds the rotor (3) that is positioned in the wet chamber N and at said location limited boundary; Wherein around said second housing parts (2), the T lining is equipped with stator (4) in dried chamber at the region exterior of said rotor (3), and wherein the tubulose boundary at said second housing parts (2) is furnished with lid (5); Wherein between said lid (5) and said second housing parts (2), be furnished with first Sealing (6), said first Sealing is connected with surrounding environment at least one deviates from the side of said wet chamber N.
2. centrifugal pump according to claim 1, wherein said first Sealing (6) is connected through in said lid (5) or at said passage (5 ') that covers or through hole, realizing with surrounding environment.
3. according to claim 1 or the described centrifugal pump of claim 2; Wherein said stator (4) is externally centered on by motor field frame (7), and is being furnished with second Sealing (8) in the said zone on the tubulose border of said second housing parts between said motor field frame (7) and said second housing parts (2).
4. centrifugal pump according to claim 3 wherein is furnished with O shape ring-Sealing respectively as first Sealing (6) and second Sealing (8).
5. according to claim 1 or the described centrifugal pump of claim 2, wherein said second housing parts (2) has clutch shaft bearing (2
*) and said lid (5) have second bearing (5
*), to be used for rotatably supporting said rotor (3).
6. centrifugal pump according to claim 3, wherein said second housing parts (2) has clutch shaft bearing (2
*) and said lid (5) have second bearing (5
*), to be used for rotatably supporting said rotor (3).
7. centrifugal pump according to claim 4, wherein said second housing parts (2) has clutch shaft bearing (2
*) and said lid (5) have second bearing (5
*), to be used for rotatably supporting said rotor (3).
8. according to claim 1 or the described centrifugal pump of claim 2, it is arc and perpendicular to the border (2 of flowing through the flow direction of the said medium that comes from said inlet E that wherein said second housing parts (2) externally has longitudinal profile in the zone
*).
9. it is arc and perpendicular to the border (2 of flowing through the flow direction of the said medium that comes from said inlet E that centrifugal pump according to claim 5, wherein said second housing parts (2) externally have longitudinal profile in the zone
*).
10. it is arc and perpendicular to the border (2 of flowing through the flow direction of the said medium that comes from said inlet E that centrifugal pump according to claim 6, wherein said second housing parts (2) externally have longitudinal profile in the zone
*).
11. it is arc and perpendicular to the border (2 of flowing through the flow direction of the said medium that comes from said inlet E that centrifugal pump according to claim 7, wherein said second housing parts (2) externally have longitudinal profile in the zone
*).
12. according to a described centrifugal pump in the claim 1 to 11 as the application of cooling water centrifugal pump in Motor Vehicle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007010051A DE102007010051A1 (en) | 2007-03-01 | 2007-03-01 | Centrifugal pump has spiral housing with two housing parts, where one housing part is formed in pipe shape and limited on its area opposite to access of inflowing medium for receiving rotor in its interior in wet chamber |
| DE102007010051.7 | 2007-03-01 | ||
| PCT/EP2008/051572 WO2008104452A1 (en) | 2007-03-01 | 2008-02-08 | Centrifugal pump comprising a spiral housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101622456A CN101622456A (en) | 2010-01-06 |
| CN101622456B true CN101622456B (en) | 2012-07-18 |
Family
ID=39323949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800067362A Active CN101622456B (en) | 2007-03-01 | 2008-02-08 | Centrifugal pump comprising a spiral housing |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20100119391A1 (en) |
| EP (1) | EP2126362B1 (en) |
| JP (1) | JP5074531B2 (en) |
| CN (1) | CN101622456B (en) |
| DE (1) | DE102007010051A1 (en) |
| ES (1) | ES2390186T3 (en) |
| WO (1) | WO2008104452A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101326503B1 (en) * | 2011-10-26 | 2013-11-08 | 현대자동차주식회사 | Canned motor type of electric water pump |
| CN105143679B (en) * | 2013-03-19 | 2018-07-06 | 流量控制有限责任公司 | The low profile pump that can be installed in various constructions |
| DE102015012277A1 (en) | 2015-09-24 | 2017-03-30 | Ebm-Papst St. Georgen Gmbh & Co. Kg | fan unit |
| DE102020130488A1 (en) * | 2019-12-16 | 2021-06-17 | ECO Holding 1 GmbH | Device for handling fluid within an at least partially electrically powered vehicle |
| CN114837792A (en) * | 2021-03-10 | 2022-08-02 | 美普盛（上海）汽车零部件有限公司 | Electric coolant pump with expansion compensation sealing element |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3053189A (en) * | 1959-12-22 | 1962-09-11 | Fostoria Corp | Motor driven pumps |
| US5129795A (en) * | 1991-05-31 | 1992-07-14 | Powerdyne Corporation | Motor driven pump |
| CN1338032A (en) * | 1999-11-24 | 2002-02-27 | 罗伯特·博施有限公司 | Fluid pump with motor housing and a method for the production of a motor housing |
| US20060251513A1 (en) * | 2003-07-22 | 2006-11-09 | BSH Bosch und Siemens Hausgeräte GmbH | Pump comprising an integrated engine |
| EP1437819B1 (en) * | 2003-01-10 | 2008-11-05 | Askoll Holding S.r.l. | Permanent magnet synchronous electric motor for circulation pumps of heating and conditioning systems |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2713311A (en) * | 1949-12-06 | 1955-07-19 | Howard T White | Motor driven pump |
| US3067690A (en) * | 1958-12-01 | 1962-12-11 | Kramer Hermann | Pump unit with canned electric motor |
| FR1310382A (en) * | 1959-02-27 | 1962-11-23 | Borg Warner | Mechanical sealing device |
| US3220350A (en) * | 1964-09-03 | 1965-11-30 | Crane Co | Motor driven pump |
| US3220349A (en) * | 1964-09-09 | 1965-11-30 | Crane Co | Motor driven pump |
| JPS4911855Y1 (en) * | 1970-12-28 | 1974-03-23 | ||
| DE3105389C2 (en) * | 1981-02-14 | 1984-12-20 | Grundfos A/S, Bjerringbro | Canned motor pump |
| JPS59106846A (en) * | 1982-12-07 | 1984-06-20 | Mitsubishi Electric Corp | Canned motor |
| JPS59106843A (en) * | 1982-12-07 | 1984-06-20 | Mitsubishi Electric Corp | Canned motor |
| US5009578A (en) * | 1987-10-27 | 1991-04-23 | Crane Co. | Motor driven pumps |
| DE19907555B4 (en) * | 1998-09-02 | 2013-09-12 | BSH Bosch und Siemens Hausgeräte GmbH | Method for assembling a liquid pump, in particular a drain pump for household appliances |
| DE19914579C2 (en) * | 1999-03-31 | 2001-03-08 | Grundfos As | Centrifugal pump unit |
| JP2002227791A (en) * | 2001-02-05 | 2002-08-14 | Matsushita Electric Ind Co Ltd | Pump |
| DE10140613A1 (en) * | 2001-08-18 | 2003-03-06 | Pierburg Gmbh | Naßläuferpumpe |
| WO2003033914A1 (en) * | 2001-10-11 | 2003-04-24 | Ebara Corporation | Pump device |
| US20050042119A1 (en) * | 2003-08-19 | 2005-02-24 | Polyvane Technology Corp. | Structural improvement for canned motor-pump |
| DE10347302A1 (en) | 2003-10-08 | 2005-05-12 | Siemens Ag | Spiral housing for a centrifugal pump |
| DE102005009260A1 (en) * | 2005-02-25 | 2006-08-31 | Wilo Ag | Centrifugal power pump`s can, has sleeve shaped bearing seat formed at bearing plate height coaxially to pump can, where seat carries bearing for motor shaft and seat and can are integrated to form one piece |
| JP4630123B2 (en) * | 2005-05-11 | 2011-02-09 | アスモ株式会社 | Fluid pump |
| JP4758166B2 (en) * | 2005-08-03 | 2011-08-24 | アスモ株式会社 | Motor and water pump |
-
2007
- 2007-03-01 DE DE102007010051A patent/DE102007010051A1/en not_active Withdrawn
-
2008
- 2008-02-08 US US12/529,513 patent/US20100119391A1/en not_active Abandoned
- 2008-02-08 WO PCT/EP2008/051572 patent/WO2008104452A1/en active Application Filing
- 2008-02-08 ES ES08716783T patent/ES2390186T3/en active Active
- 2008-02-08 CN CN2008800067362A patent/CN101622456B/en active Active
- 2008-02-08 JP JP2009551159A patent/JP5074531B2/en not_active Expired - Fee Related
- 2008-02-08 EP EP08716783A patent/EP2126362B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3053189A (en) * | 1959-12-22 | 1962-09-11 | Fostoria Corp | Motor driven pumps |
| US5129795A (en) * | 1991-05-31 | 1992-07-14 | Powerdyne Corporation | Motor driven pump |
| CN1338032A (en) * | 1999-11-24 | 2002-02-27 | 罗伯特·博施有限公司 | Fluid pump with motor housing and a method for the production of a motor housing |
| EP1437819B1 (en) * | 2003-01-10 | 2008-11-05 | Askoll Holding S.r.l. | Permanent magnet synchronous electric motor for circulation pumps of heating and conditioning systems |
| US20060251513A1 (en) * | 2003-07-22 | 2006-11-09 | BSH Bosch und Siemens Hausgeräte GmbH | Pump comprising an integrated engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008104452A1 (en) | 2008-09-04 |
| CN101622456A (en) | 2010-01-06 |
| EP2126362A1 (en) | 2009-12-02 |
| DE102007010051A1 (en) | 2008-09-04 |
| ES2390186T3 (en) | 2012-11-07 |
| JP5074531B2 (en) | 2012-11-14 |
| JP2010520397A (en) | 2010-06-10 |
| EP2126362B1 (en) | 2012-07-04 |
| US20100119391A1 (en) | 2010-05-13 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230423 Address after: Regensburg, Germany Patentee after: WeiPai Technology Co.,Ltd. Address before: Hannover Patentee before: CONTINENTAL AUTOMOTIVE GmbH |
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| TR01 | Transfer of patent right |