CN1268628A - Centrifugical pump - Google Patents
Centrifugical pump Download PDFInfo
- Publication number
- CN1268628A CN1268628A CN 00105351 CN00105351A CN1268628A CN 1268628 A CN1268628 A CN 1268628A CN 00105351 CN00105351 CN 00105351 CN 00105351 A CN00105351 A CN 00105351A CN 1268628 A CN1268628 A CN 1268628A
- Authority
- CN
- China
- Prior art keywords
- pump
- motor
- abap adapter
- pump case
- sealing
- 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
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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
- F04D29/62—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
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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
- 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
- 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
- F04D13/0633—Details of the bearings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The centrifugal pump unit comprises a canned motor with a canned cap which seals the motor winding with respect to the rotor space. The motor is arranged within a motor housing to which there axially connects a pump housing in which there runs an impeller driven by a motor. In the region between the canned cap and the pump housing there are provided sealing means. Between the motor housing and the pump housing there is arranged an adapter, wherein between the adapter and the pump housing there are provided sealing means as well as between the canned cap and the adapter. With the help of this adapter a motor as is known from heating circulatory pumps, with a circumferentially significantly larger pump housing and thus also larger impeller, may be used.
Description
The present invention relates to a kind of centrifugal pump.
Now, this centrifugal pump generally uses as the Heating Cyclic pump, and is made in a large number, and tens thousand of batches is for example arranged every day.They comprise a hermetically-sealed motor, in its sealing cover, are rotating the rotor that is installed on the live axle.Motor winding and the fluid isolation that is filled in the rotor space, wherein, mainly the pump case that is connected with this Heating Cyclic pump flushes with motor field frame on extending axially partly.
Some place in the world, the place that sufficiently high working pressure is not particularly always arranged at the center water supply station, normally water storage box is installed on (for example) roof, put into water then from the center water supply station, until the certain altitude that rises to water storage box, in the time of needs water, make water flow to water intaking position in its lower section the room thus.Utilize this method, when the discharge pressure in the water supply line of center reduces or stops to carry, also can obtain water.Because the static pressure that height difference forms between water storage box and the water intaking position is almost very little, therefore when use needs electronic or pneumatic water heater that minimal amount of water passes through or similar devices, must use so-called booster pump.This make the pump that increases from the hydraulic pressure of water storage box relatively per hour 0.5 to 1 cubic metre the flow pressure that has 0.6 to 0.8 crust (bar) usually increase.
With regard to design and fabrication technology, making this existing suitable pump may be without any problem.Yet for new design and the present number of components that needs, higher cost can be estimated, because may only need these pumps of small lot or medium batch.
Therefore known booster pump has the drive motor that is designed to the dry type rotor, and between pump and motor regional sealed need be provided.The sealing of axle is formed by axial end Sealing or lip packing, and this Sealing can be worn as time goes by and behind certain hour, thereby must transposing.For this reason, pump case must be unloaded, the pump assembly must be decomposed in other words.In addition, the noise of the driver that dry type is rotated is bigger, and this noise is annoying especially in the residential quarter.
At this technical background, the objective of the invention is to design a kind of centrifugal pump, specifically, it can be used as booster pump and uses, and it is durable and maintenance expenses is lower on the one hand, and it is also more cheap when small lot or medium batch process on the other hand.
The object of the present invention is achieved like this, and a kind of centrifugal pump is provided, and it has with closure) hermetically-sealed motor, the motor winding of the relative rotor space of sealing lid sealing; Axially motor field frame and the pump case that connects is installed with in pump case and electric motor driven impeller; And between sealing cover and pump case the zone in Sealing.Wherein, an ABAP Adapter is installed between motor field frame and pump case, and between ABAP Adapter and the pump case and between ABAP Adapter and the sealing cover Sealing is being installed.
Basic principle of the present invention is the actuator part that forms as the wet type rotor, and use usually as the hermetically-sealed motor use of Heating Cyclic pump, the centrifugal pump of making in enormous quantities, when being used as the booster pump use, because this driver can cheaply obtain because of in enormous quantities the manufacturing on the one hand, rotor space because of the filling fluid is need not to keep in repair very durable on the other hand, so it is useful especially for above-mentioned application purpose.In addition, thus the wet type rotating operation has the lower advantage of noise of working in relatively moister environment.
If the motor that wish to adopt the wet type of immovable Heating Cyclic pump to rotate is selected single stage centrifugal pump (because cost is not considered multistage centrifugal pump here) then, the specific speed of rotation of 10/min or lower will be caused.During the driver of the Heating Cyclic pump of above-mentioned when using, as to have 3000/min rated speed, will make impeller have the highest (D2=external diameter, D1=internal diameter) inner and outer diameter ratio that is approximately 6 D2 than D1.To make impeller have the corresponding even bigger external diameter of external diameter with motor field frame thus.This will have such result, that the Heating Cyclic pump usually connects and with motor field frame pump case that circumference aligns will than before big, at least in pump case because cost former thereby be in demand when forming a monomer in fact.For the pump case with this size is connected on the smaller motor field frame, and connect sealing cover in a suitable manner, the present invention has designed a kind of ABAP Adapter, its side is connected with sealing cover by Sealing, and be connected with pump case by Sealing on the other hand, be about to it and be installed between motor field frame and the pump case.
This ABAP Adapter preferably forms a loop configuration, and comprise that a bearing surface towards pump case reaches another bearing surface towards sealing cover and motor field frame, like this, the structural member of motor can remain unchanged, and pump case is at design aspect, can finish easily aspect the ring joint part especially.
This ABAP Adapter can form at an easy rate with thin plate, at first stamps out a flat ring, forms suitable step then therein, forms above-mentioned bearing surface and guide hole radially thereof thus.
Usually, bearing surface forms flange shape, wherein, provides a medial flange with the corresponding outboard flanges on the supporting sealing cover, and an outboard flanges is to be bearing in the pump assembly on the ABAP Adapter.
Usually, described medial flange is to form like this, and it is formed with at least one projection that extends radially inwardly, the shape of lug ringwise for example, and also be used for fixing support plate at the same time, this support plate is installed between rotor space and the pump space usually, and admits the bearing of the axle of impeller one side.
Connection between pump case and the motor field frame realizes easily that by pull bar pull bar imports from the outer side of motor field frame, thereby ABAP Adapter is fixed between pump case and the motor field frame.By these pull bars, also can apply needed pressure between pump case and the ABAP Adapter and on the Sealing of ABAP Adapter and sealing cover medial flange.
Embodiment below with reference to the accompanying drawings describes the present invention in detail.
Fig. 1 is the longitudinal sectional view according to a centrifugal pump of the present invention;
Fig. 2 is another longitudinal sectional view of the centrifugal pump of different orientation;
Fig. 3 is a stereogram of seeing ABAP Adapter in the past from oblique upper.
Centrifugal pump shown in Fig. 1 and 2 comprises motor field frame 1 and pump case 2, and they are connected to each other by ABAP Adapter 3.
Motor field frame is installed with stator 4 for 1 li, it inboard and towards a side of ABAP Adapter 3 by sealing cover 5 sealings.Sealing cover 5 is formed by thin plate, and comprises stepped shape flange 6, and flange 6 supports the medial flange 8 of ABAP Adapter 3 with annular flat Sealing 7.
Rotor 9 is in 5 li rotations of sealing cover, and the axle 10 of rotor 9 is by two bearings 11 and 12 supportings.Rear bearing 11 is fixed on the base of sealing cover by central ring 13.Fore bearing 12 is fixing by the positioning ring 14 as support plate, and positioning ring 14 is also formed by thin plate, and its outboard flanges is between the inside protrusions 15 of lip seal 7 and ABAP Adapter 3 medial flange 8.In of flange 6 supportings of this regional lip seal 7 by sealing cover 5.
Pump side one end of axle 10 is installed an impeller 16 firmly, and impeller 16 is known from accompanying drawing in 2 li rotations of pump case, pump case body image one helical housing.Impeller 16 at an abaxial side shaft to charging into import 17, and import 17 lead to radially away from, at the suction attachment 18 on pump case side.From Fig. 1, also can see one radially away from compression fittings 19, it is formed at the end of helical housing, flushes with the outer periphery of impeller 16.
From Fig. 3, can see, be formed with on the outboard flanges of ABAP Adapter 3 and the corresponding structure of lug 24 on the motor field frame 1, and in addition also be circular.ABAP Adapter 3 is formed by the sheet stamping part.
Claims (7)
1. centrifugal pump, it has the hermetically-sealed motor of with closure (5), the motor winding (4) of the relative rotor space of sealing lid sealing; Axially motor field frame (1) and the pump case (2) that connects is installed with in pump case and electric motor driven impeller (16); And between sealing cover (5) and pump case (2) zone in Sealing; It is characterized in that, an ABAP Adapter (3) is installed between motor field frame (1) and pump case (2), and between ABAP Adapter (3) and the pump case (2) and between ABAP Adapter (3) and the sealing cover (5) Sealing (21,7) is being installed.
2. centrifugal pump as claimed in claim 1 is characterized in that, ABAP Adapter (3) and comprises a bearing surface of relative pump case (2) and another bearing surface at least of relative sealing cover (5) and motor field frame (1) ringwise.
3. the described centrifugal pump of one of claim as described above is characterized in that ABAP Adapter (3) is formed by a thin plate.
4. the described centrifugal pump of one of claim as described above is characterized in that ABAP Adapter (3) comprises an outboard flanges (22), is formed with the bearing surface of relative pump case (2) on this outboard flanges.
5. the described centrifugal pump of one of claim as described above is characterized in that ABAP Adapter (3) comprises a medial flange (8), and this medial flange is formed with the bearing surface of relative sealing cover (5).
6. centrifugal pump, it installs a support plate between rotor space and pump space, it is characterized in that, goes up in medial flange (8) projection (15) that extend radially inwardly, that be used for fixing support plate (14) is set.
7. the described centrifugal pump of one of claim as described above is characterized in that, motor field frame (1) and pump case (2) are fastened to each other and fixing with ABAP Adapter (3) by pull bar (28).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999114579 DE19914579C2 (en) | 1999-03-31 | 1999-03-31 | Centrifugal pump unit |
DE19914579.2 | 1999-03-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1268628A true CN1268628A (en) | 2000-10-04 |
CN1249357C CN1249357C (en) | 2006-04-05 |
Family
ID=7903056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 00105351 Expired - Lifetime CN1249357C (en) | 1999-03-31 | 2000-03-30 | Centrifugical pump |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN1249357C (en) |
AR (1) | AR022942A1 (en) |
DE (1) | DE19914579C2 (en) |
TW (1) | TW460658B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100465455C (en) * | 2003-11-26 | 2009-03-04 | 普拉塞特股份有限公司 | Centrifugal pump especially for domestic appliances and other similar products |
CN104040182A (en) * | 2011-12-27 | 2014-09-10 | 格兰富控股联合股份公司 | Pump unit |
CN104235070A (en) * | 2013-06-13 | 2014-12-24 | 德昌电机(深圳)有限公司 | Pump case and pump with same |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10113437A1 (en) * | 2001-03-19 | 2002-09-26 | Wilo Gmbh | Centrifugal pump for use in heating systems for buildings has installation length divided into two sub-sections of different lengths by plane defined by rotor wheel axis to which inline port axis forms a normal |
ES1049538Y (en) * | 2001-07-03 | 2002-05-16 | Fico Transpar Sa | ELECTRIC PUMP FOR WASHER OF MOTOR VEHICLES. |
DE202005014071U1 (en) * | 2005-09-06 | 2007-01-18 | Oase Gmbh | Pump for pond, aquarium or the like. Attachments |
DE102007010051A1 (en) * | 2007-03-01 | 2008-09-04 | Continental Automotive Gmbh | 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 |
DE102011121149A1 (en) * | 2011-12-15 | 2013-06-20 | Wilo Se | Wet runner pump with prechamber |
PL2607710T3 (en) * | 2011-12-23 | 2015-08-31 | Grundfos Holding As | Wet running circulation pump |
PL2808547T3 (en) * | 2013-05-31 | 2017-01-31 | Grundfos Holding As | Actuation device for a pump assembly |
DE102013017976A1 (en) * | 2013-11-29 | 2015-06-03 | Fte Automotive Gmbh | Electric motor driven liquid pump, in particular for forced lubrication of a manual transmission for motor vehicles |
EP3382207B1 (en) * | 2017-03-31 | 2021-09-29 | Grundfos Holding A/S | Pump assembly |
EP3382206B1 (en) * | 2017-03-31 | 2020-12-16 | Grundfos Holding A/S | Pump assembly |
SI3425221T1 (en) * | 2017-07-06 | 2020-04-30 | Grundfos Holding A/S | Pump bearing retainer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3433164A (en) * | 1967-03-03 | 1969-03-18 | Buffalo Forge Co | Motor-pump unit |
DE2460748C3 (en) * | 1974-12-21 | 1982-09-16 | Grundfos A/S, 8850 Bjerringbro | Circulation pump, in particular for heating and service water systems |
-
1999
- 1999-03-31 DE DE1999114579 patent/DE19914579C2/en not_active Expired - Lifetime
-
2000
- 2000-03-15 AR ARP000101155 patent/AR022942A1/en active IP Right Grant
- 2000-03-21 TW TW89105107A patent/TW460658B/en not_active IP Right Cessation
- 2000-03-30 CN CN 00105351 patent/CN1249357C/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100465455C (en) * | 2003-11-26 | 2009-03-04 | 普拉塞特股份有限公司 | Centrifugal pump especially for domestic appliances and other similar products |
CN104040182A (en) * | 2011-12-27 | 2014-09-10 | 格兰富控股联合股份公司 | Pump unit |
CN104040182B (en) * | 2011-12-27 | 2017-03-01 | 格兰富控股联合股份公司 | Pump assembly |
CN104235070A (en) * | 2013-06-13 | 2014-12-24 | 德昌电机(深圳)有限公司 | Pump case and pump with same |
Also Published As
Publication number | Publication date |
---|---|
DE19914579A1 (en) | 2000-11-16 |
CN1249357C (en) | 2006-04-05 |
AR022942A1 (en) | 2002-09-04 |
TW460658B (en) | 2001-10-21 |
DE19914579C2 (en) | 2001-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20060405 |