CN101622456A - Centrifugal pump comprising a spiral housing - Google Patents
Centrifugal pump comprising a spiral housing Download PDFInfo
- Publication number
- CN101622456A CN101622456A CN200880006736A CN200880006736A CN101622456A CN 101622456 A CN101622456 A CN 101622456A CN 200880006736 A CN200880006736 A CN 200880006736A CN 200880006736 A CN200880006736 A CN 200880006736A CN 101622456 A CN101622456 A CN 101622456A
- Authority
- CN
- China
- Prior art keywords
- housing parts
- centrifugal pump
- sealing
- chamber
- rotor
- 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
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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
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- 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
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.
Background technique
Centrifugal pump with spiral case is known.Described a kind of two-part spiral case that is used for centrifugal pump in DE 103 47 302A1, 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, and washing-round is carried out by the flowing medium that will carry in this wet chamber.Do chamber and wet chamber and separate, wherein disadvantageously must between one of them part of spiral case and chink type pipe, arrange seal element, do the chamber to avoid liquid or steam to enter into from wet chamber by the chink type pipe of independent layout.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 relatively large liquid to enter into and do the chamber and fill with this dried chamber.This causes the bigger damage of stator and electronic component so, and except stator, this electronic component equally also is arranged in to be done in the chamber.
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.
Purpose of the present invention realizes by a kind of centrifugal pump with spiral case, this spiral case comprises first housing parts and second housing parts, wherein second housing parts is designed to tubulose in the location that it deviates from the inlet E that flows through the medium that comes, be used for that inside holds the rotor that is positioned in the wet chamber N and at this location limited boundary, wherein around second housing parts, region exterior at rotor is equipped with stator at dried chamber T lining, wherein the tubulose boundary at second housing parts is furnished with lid, wherein be furnished with first Sealing between lid and second housing parts, this first Sealing is connected with surrounding environment at least one deviates from the side of the chamber N that wets.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.By 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 the other electron component in dried chamber T by this way.
According to a preferred design proposal of the present invention, first Sealing is connected by realizing in lid or at passage that covers or through hole with surrounding environment.By this way, first Sealing can connect with surrounding environment simple and no problemly relatively, 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: stator is externally centered on by motor field frame, and is being 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 by 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 relative to one another with the form of O shape ring-Sealing, 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, the structure space of centrifugal pump can particularly advantageously 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
Below (Fig. 1 to Fig. 3) comes in detail and exemplarily to illustrate the present invention with reference to the accompanying drawings.
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 prior art.
Embodiment
Figure 1 illustrates the three-dimensional longitudinal profile of centrifugal pump.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, be equipped with stator 4 at dried chamber T lining at the region exterior of rotor 3.Be furnished with at the tubulose boundary of second housing parts 2 and cover 5, wherein be furnished with first Sealing 6 between lid 5 and second housing parts 2, 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 by 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 represents 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 by 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.
Figure 2 illustrates the three-dimensional longitudinal profile of the centrifugal pump of exploded view form.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.
Figure 3 illustrates three-dimensional longitudinal profile according to the centrifugal pump of prior art.Centrifugal pump according to prior art 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) for the treatment of 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 by motor field frame 7b.According to prior art, wet chamber Nb and dried chamber Tb separate by the disadvantageous layout of chink type pipe 9b, wherein the liquid from wet chamber Nb may enter into dried chamber Tb by 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 avoided by centrifugal pump according to the present invention.
Claims (7)
1. centrifugal pump with spiral case, described 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 described 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 described location limited boundary, wherein around described second housing parts (2), region exterior at described rotor (3) is equipped with stator (4) at dried chamber T lining, wherein the tubulose boundary at described second housing parts (2) is furnished with lid (5), wherein be furnished with first Sealing (6) between described lid (5) and described second housing parts (2), described first Sealing is connected with surrounding environment at least one deviates from the side of described wet chamber N.
2. centrifugal pump according to claim 1, wherein said first Sealing (6) is connected by realizing in described lid (5) or at described passage (5 ') that covers or through hole 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 described zone on the tubulose border of described second housing parts between described motor field frame (7) and described second housing parts (2).
4. according to claim 1 or the described centrifugal pump of claim 3, wherein be furnished with O shape ring-Sealing respectively as first Sealing (6) and second Sealing (8).
5. according to a described centrifugal pump in the claim 1 to 4, wherein said second housing parts (2) has clutch shaft bearing (2
*) and described lid (5) have second bearing (5
*), to be used for rotatably supporting described rotor (3).
6. according to a described centrifugal pump in the claim 1 to 5, it is arc and perpendicular to the border (2 of flowing through the flow direction of the described medium that comes from described inlet E that wherein said second housing parts (2) externally has longitudinal profile in the zone
*).
According to a described centrifugal pump in the claim 1 to 6 as the application of cooling water centrifugal pump in Motor Vehicle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007010051.7 | 2007-03-01 | ||
| 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 |
| PCT/EP2008/051572 WO2008104452A1 (en) | 2007-03-01 | 2008-02-08 | Centrifugal pump comprising a spiral housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101622456A true CN101622456A (en) | 2010-01-06 |
| CN101622456B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075351A (en) * | 2011-10-26 | 2013-05-01 | 现代自动车株式会社 | Electric water pump with a canned motor |
| CN115066542A (en) * | 2019-12-16 | 2022-09-16 | 伊希欧1控股有限公司 | Device for treating a fluid in an at least partially electrically driven vehicle |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014153403A1 (en) * | 2013-03-19 | 2014-09-25 | Flow Control Llc. | Low profile pump with the ability to be mounted in various configurations |
| DE202015009563U1 (en) | 2015-09-24 | 2018-04-25 | Ebm-Papst St. Georgen Gmbh & Co. Kg | fan unit |
| 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 |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| US3053189A (en) * | 1959-12-22 | 1962-09-11 | Fostoria Corp | Motor driven pumps |
| 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 |
| US5129795A (en) * | 1991-05-31 | 1992-07-14 | Powerdyne Corporation | Motor driven pump |
| 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 |
| DE19956380C1 (en) * | 1999-11-24 | 2001-01-04 | Bosch Gmbh Robert | Fluid pump for vehicle cooling and heating systems has plastics motor housing with claw plates of claw pole stator formed as integral components thereof |
| 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 |
| DK1437819T3 (en) * | 2003-01-10 | 2009-03-02 | Askoll Holding Srl | Electric permanent magnet synchronous motor for heating and air conditioning systems circulation pumps |
| DE10352487A1 (en) * | 2003-07-22 | 2005-02-10 | BSH Bosch und Siemens Hausgeräte GmbH | Pump with integrated motor |
| 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 EP EP08716783A patent/EP2126362B1/en active Active
- 2008-02-08 US US12/529,513 patent/US20100119391A1/en not_active Abandoned
- 2008-02-08 JP JP2009551159A patent/JP5074531B2/en not_active Expired - Fee Related
- 2008-02-08 ES ES08716783T patent/ES2390186T3/en active Active
- 2008-02-08 CN CN2008800067362A patent/CN101622456B/en active Active
- 2008-02-08 WO PCT/EP2008/051572 patent/WO2008104452A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075351A (en) * | 2011-10-26 | 2013-05-01 | 现代自动车株式会社 | Electric water pump with a canned motor |
| CN115066542A (en) * | 2019-12-16 | 2022-09-16 | 伊希欧1控股有限公司 | Device for treating a fluid in an at least partially electrically driven vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008104452A1 (en) | 2008-09-04 |
| JP2010520397A (en) | 2010-06-10 |
| CN101622456B (en) | 2012-07-18 |
| ES2390186T3 (en) | 2012-11-07 |
| EP2126362A1 (en) | 2009-12-02 |
| US20100119391A1 (en) | 2010-05-13 |
| DE102007010051A1 (en) | 2008-09-04 |
| JP5074531B2 (en) | 2012-11-14 |
| EP2126362B1 (en) | 2012-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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 |
|
| TR01 | Transfer of patent right |