CN100365285C - Submersible motor-driven pump with an anti-frost device - Google Patents
Submersible motor-driven pump with an anti-frost device Download PDFInfo
- Publication number
- CN100365285C CN100365285C CNB038207095A CN03820709A CN100365285C CN 100365285 C CN100365285 C CN 100365285C CN B038207095 A CNB038207095 A CN B038207095A CN 03820709 A CN03820709 A CN 03820709A CN 100365285 C CN100365285 C CN 100365285C
- Authority
- CN
- China
- Prior art keywords
- axle
- submersible motor
- driven pump
- shell
- slit
- 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.)
- Expired - Fee Related
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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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
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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
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
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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
- F04D29/40—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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A submersible motor-driven pump comprising a housing, an intake pipe disposed on the housing, an impeller disposed inside the intake pipe in order to produce an intake flow and in order to transport a fluid to a discharge connection, said impeller being mounted on a shaft, also comprising a can into which the shaft extends, characterized in that an anti-frost device is arranged inside the housing for the shaft.
Description
Technical field
The present invention relates to a kind of submersible motor-driven pump.
Background technique
By the known this submersible motor-driven pump of general prior art.When they are arranged in a pond or a kind of flowing medium with not antifreeze state when, they must be laid the place taking-up and prevent the frozen ground keeping from it in the winter time.In a submersible motor-driven pump, a common impeller is connected with a motor by a porcelain axle, and this motor is at pump operation drive impeller.
Be known that described porcelain system axle is responsive also fractureing easily with respect to effect pressure thereon.But in known submersible motor-driven pump because a large amount of other favourable characteristics are preferably used the porcelain axle.
In the winter time, not antifreeze flowing medium is since a downward deep colling in surface.When for example a submersible motor-driven pump was survived the winter in pond, a park, this pump may be freezing in an icing cycle.Pool water level is in this submersible motor-driven pump the inside, and Chi Shui is retained in housings or enters the outer casing space the inside afterwards behind the pump operation the last time.These water are slowly deep colling and the axle that is in level usually applied a pressure from the top down.When in that the shell relaying is continuous when freezing downwards, water also be arranged on a side and with the concentric suction connection of axle under surface expansion, especially produce for axle and self to freeze disconnected danger for porcelain system axle.
Summary of the invention
Therefore the objective of the invention is, create a kind of submersible motor-driven pump, it also can be retained in a liquid or freeze in the medium freezing season, and can be not impaired.
This purpose is achieved by above-mentioned submersible motor-driven pump according to the present invention.
By the submersible motor-driven pump with a shell of the present invention, have: a suction connection that is placed on the shell; An impeller that is arranged in the suction connection is used to produce a suction stream and is used for to an out splice going splice conveyance fluid, and wherein, described impeller is bearing on the axle; With a slit-tube, described axle extends in this slit-tube, it is characterized in that, an anti-icer that is used for axle is set in described shell, and described anti-icer has one and is arranged on a displacement hull in the free space that axle extends with one heart.
This anti-icer prevents that as far as possible axle from avoiding freeze injury and especially preventing by the fracture of freezing to cause.
Another advantage of the present invention is that described anti-icer is bearing in a resilient sleeve the inside in the ingress of slit-tube.Can bear pressure thus transverse to axis X.
Another advantage is, described anti-icer has a displacement hull, and it is arranged in the free space with one heart with axle or axis X.Especially there is a big free space in the slit-tube of length between the motor component of a resilient sleeve and a formation rotor according to axle.Described displacement hull occupies a space, in this space otherwise may compile flowing medium and especially congealable Chi Shui, and may apply a pressure to axle.Described displacement hull also makes water away from described axle.
Another advantage is that described impeller flexibly is fixed on the axle.This flexible fastening for example realizes by an elastomer.
Also have an advantage to be, hold the deep-seated in the zone of water and put, the tap hole of a sealing of impeller below normally, by a flexible sheet sealing, it can expand in the winter time the time, is used to bear the ice pressure of axle.
Description of drawings
Describe embodiments of the invention in detail by means of accompanying drawing below.In the accompanying drawing:
Fig. 1 illustrates one according to first embodiment with submersible motor-driven pump of an anti-icer of the present invention with the longitudinal profile schematic representation;
Fig. 2 illustrates a detailed drawing among Fig. 1, it on the right side flexible sheet of half side expression be in swelling state and on a left side the half side unswollen state that illustrates;
Fig. 3 illustrates a detailed drawing among Fig. 1, and it represents a flexible impeller fixed block;
Fig. 4 illustrates one according to second embodiment with another submersible motor-driven pump of an anti-icer of the present invention with the longitudinal profile schematic representation;
Fig. 5 illustrates one according to the 3rd embodiment with another submersible motor-driven pump of an anti-icer of the present invention with the longitudinal profile schematic representation.
Embodiment
In Fig. 1, a submersible motor-driven pump 1 is shown and is in work or running position with the longitudinal sectional drawing letter.A shell 3 is connected with a suction connection 5 at an end face (left side in Fig. 1).This suction connection 5 is the parts that suck shell 7, also constitutes a pump and take over (Pumpanschluss) 9 and outlet connections 11 on this suction shell.An impeller 13 that is connected with suction connection 5 and pump adapter 9 effects is set in sucking shell 7, and it is fixed on the axle and especially is fixed on the porcelain axle 15.This porcelain axle 15 has an axis X, it shown in the working position extend in a slit-tube 17 along the direction of a basic horizontal, this slit-tube is arranged on shell 3 the insides.Described porcelain axle 15 is bearing in porcelain bearing 19 the insides at the link position that sucks between shell 7 and the slit-tube 17, and this porcelain bearing is bearing in resilient sleeve 20 the insides again.Between the rotor 21 on porcelain bearing 19 and the porcelain axle 15 in slit-tube 17, on porcelain axle 15, constitute a displacement hull 23 with one heart, it is full of a structure free space.This displacement hull 23 has the identical radial dimension apart from axis X of preferred and rotor 21, therefore primordial identical shaped air gap 25 between the inwall of slit-tube 17 and rotor 21 or displacement hull 23, and it can have for example width of 0.2mm.Described outlet connection 11 is positioned at the bosom of water or is positioned at the bosom in the zone that holds the one other fluid medium of submersible motor-driven pump 1, and separates in Vertical direction by a flexible sheet 25 and this zone.Left half side illustrating in Fig. 2, how indeformable under the normal pressure characteristics of water or other liquid medium described flexible sheet 25 is.Half sidely on the right side described flexible sheet is shown how when freezing, under ice pressure, is out of shape.
Described impeller 13 also flexibly is fixed on the porcelain axle 15.A flexible impeller fixed block 27 shown in Figure 3, it is fixed on impeller on the porcelain axle 15.Described flexible impeller fixed block 27 is an elastomer in the embodiment shown, overlap in it constitutes between of impeller 13 holds cover 29 and porcelain axle 15 31 and at porcelain axle 15 one section on the axis X direction, extend.
Each antifreeze feature of described resilient sleeve 20, displacement hull 23, flexible sheet 25 and flexible impeller fixed block 27 itself all is used to improve the antifreeze of submersible motor-driven pump 1.Make antifreeze further optimization by above-mentioned independent combination of features.Therefore in other embodiments, also can in a submersible motor-driven pump 1, only use the combination in any of an above-mentioned antifreeze feature or these features.
According to estimated minimum temperature, select at the elastic material that feature described in the above-mentioned chapters and sections is used being used for.Therefore can use all elastomeric materials known in the prior art, they are dimensionally stables and water-fast, and also do not lose its elastic characteristic under the minimum temperature condition.By known these elastic materials of prior art, and for example include only as natural or elastomeric materials such as synthetic rubber and rubber composition.
In Fig. 4, a submersible motor-driven pump 10 according to the second enforcement side is shown and is in work or running position with the longitudinal sectional drawing letter.A shell 30 (left side in Fig. 4) on an end face is connected with a suction connection 50.This suction connection 50 is parts that suck shell 70, also constitutes a pump thereon and takes over 90.An impeller 130 that is connected with suction connection 50 and pump adapter 90 effects is set in sucking shell 70, and it is fixed on the axle and especially is fixed on the oxide ceramics axle 150.This oxide ceramics axle 150 has an axis X, it shown in the working position extend in a slit-tube 170 along the direction of a basic horizontal, this slit-tube is arranged on shell 30 the insides.
Described impeller 30 can be fixed on the oxide ceramics axle 150 equally, as in Fig. 3 for shown in first embodiment.
In second embodiment of Fig. 4, in suction shell 70 fronts a doughnut 190 is set in suction connection 50 directions.This suction connection 50 is tightened onto by doughnut 190 in a second embodiment and sucks on the shell 70.But also it is contemplated that other connection.A displacement hull 210 is set in doughnut 190, and it for example is a kind of foamed material or materials similar with closed cell, and they are known by prior art.Also it is contemplated that the diaphragm that for example is full of air, similar with the expansion drum (Ausdehnungsgefaess) in the heating installation (Heizung).
Described doughnut 190 is by passage or slit 230 and the internal communication that sucks shell 70.These slits 230 are distributed in inside near sucking shell 70 circumference.A water/ice pressure can escape into doughnut 190 by this slit 230.In this embodiment, described submersible motor-driven pump 10 can be freezing in different spatial position, and can not be subjected to the infringement of water/ice pressure.
Letter illustrates the 3rd embodiment according to submersible motor-driven pump 10 of the present invention in Fig. 5.This immersion pump 1 is just the same with second embodiment's submersible motor-driven pump 10 except anti-icer, therefore saves other general description.Identical structure member keeps the reference character identical with first and second embodiments.Described anti-icer also comprises a doughnut 1900 in the 3rd embodiment.But this doughnut is arranged on and sucks between shell 70 and the slit-tube 170.Described displacement hull 210 is positioned at doughnut 1900 the insides, and this displacement hull can be realized with the displacement hull among second embodiment the samely.Described doughnut 1900 by passage or slit 2300 on the one hand with the internal communication of slit-tube 170 on the other hand with the internal communication that sucks shell 70.Described slit 2300 here is arranged in inside near sucking shell 70 or slit-tube 170 circumference.Water/ice pressure is not only selected from slit-tube 170 but also from suck shell, and described immersion pump can be freezing in different spatial position, and can be subjected to freeze injury.
The 3rd embodiment is applicable to so-called wet rotor electric machine, and wherein said slit-tube 170 is full of water.
Claims (6)
1. the submersible motor-driven pump with shell (3) has: a suction connection (5) that is placed on the shell; An impeller (13) that is arranged in the suction connection is used to produce a suction stream and is used for to an out splice going splice conveyance fluid, and wherein, described impeller is bearing on the axle; With a slit-tube (17), described axle extends in this slit-tube, it is characterized in that, an anti-icer (19 that is used for axle (15) is set in described shell (3), 23,25,27), described anti-icer has one and is arranged on a displacement hull (23) in the free space that axle (15) extends with one heart.
2. submersible motor-driven pump as claimed in claim 1 is characterized in that, described anti-icer (19,23,25,27) has a resilient sleeve (20), and a bearing (19) of described axle (15) is bearing in this resilient sleeve in the ingress of slit-tube (17).
3. submersible motor-driven pump as claimed in claim 1 or 2 is characterized in that, described anti-icer (19,23,25,27) has a flexible impeller fixed block (27).
4. submersible motor-driven pump as claimed in claim 1 or 2, it is characterized in that, on a position (11) the darkest in running position a flexible sheet (25) is set, this flexible sheet can expand under ice pressure and reduce the ice pressure of axle on (15) thus.
5. submersible motor-driven pump as claimed in claim 1 is characterized in that, described axle (15) is a porcelain axle.
6. submersible motor-driven pump as claimed in claim 4 is characterized in that, described axle (15) is a porcelain axle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10240380 | 2002-08-31 | ||
| DE10240380.5 | 2002-08-31 | ||
| DE10331602.7 | 2003-07-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1701183A CN1701183A (en) | 2005-11-23 |
| CN100365285C true CN100365285C (en) | 2008-01-30 |
Family
ID=31724244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038207095A Expired - Fee Related CN100365285C (en) | 2002-08-31 | 2003-08-23 | Submersible motor-driven pump with an anti-frost device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100365285C (en) |
| DE (1) | DE10331602B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107373794A (en) * | 2017-07-25 | 2017-11-24 | 福建锐翔体育科技股份有限公司 | A kind of new energy Intelligent thermal-protection gym suit |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004060418A1 (en) * | 2004-12-14 | 2006-07-06 | Metabowerke Gmbh | Pump with frost protection device |
| EP2546525B1 (en) | 2011-07-13 | 2017-03-29 | Oase GmbH | Circulation pump with spiral housing |
| DE102012203615B4 (en) * | 2012-03-07 | 2013-11-21 | Hanning Elektro-Werke Gmbh & Co. Kg | pump |
| US9476424B2 (en) * | 2012-11-06 | 2016-10-25 | Nidec Motor Corporation | Appliance pump with angled flow path and axial flow impeller |
| DE102018217176B4 (en) * | 2018-10-08 | 2020-06-10 | Continental Automotive Gmbh | Fluid pump, water delivery unit, water injection system, internal combustion engine and vehicle |
| DE102018217180A1 (en) * | 2018-10-08 | 2020-04-09 | Continental Automotive Gmbh | Fluid pump, water delivery unit, water injection system, internal combustion engine and vehicle |
| DE102018217179B4 (en) * | 2018-10-08 | 2023-06-29 | Vitesco Technologies GmbH | Fluid pump, water delivery unit, water injection system, internal combustion engine and vehicle |
| JP2021036134A (en) * | 2019-08-30 | 2021-03-04 | 日本電産サンキョー株式会社 | Pump device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3045607A (en) * | 1960-04-11 | 1962-07-24 | Lindner Jacob | Well pumping system |
| US3313241A (en) * | 1965-09-23 | 1967-04-11 | Newman Jc | Over-the-top delivery for pumps having anti-freeze properties |
| JPS58210396A (en) * | 1982-05-31 | 1983-12-07 | Mitsubishi Electric Corp | Self-priming motor pump |
| JPS5918297A (en) * | 1982-07-20 | 1984-01-30 | Mitsubishi Electric Corp | Scroll pump |
| JPH11153098A (en) * | 1997-09-19 | 1999-06-08 | Nikkiso Co Ltd | Freezing preventive device for canned motor pump |
| JPH11294366A (en) * | 1998-04-16 | 1999-10-26 | Nikkiso Co Ltd | Cryogenic pump with antifreezing mechanism |
| US20020076337A1 (en) * | 2000-12-15 | 2002-06-20 | Larry Rexroth | Potable water pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29503410U1 (en) * | 1995-03-01 | 1995-04-13 | OASE - PUMPEN Wübker Söhne GmbH & Co, Maschinenfabrik, 48477 Hörstel | Electric motor for use in liquids |
-
2003
- 2003-07-12 DE DE10331602A patent/DE10331602B4/en not_active Expired - Lifetime
- 2003-08-23 CN CNB038207095A patent/CN100365285C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3045607A (en) * | 1960-04-11 | 1962-07-24 | Lindner Jacob | Well pumping system |
| US3313241A (en) * | 1965-09-23 | 1967-04-11 | Newman Jc | Over-the-top delivery for pumps having anti-freeze properties |
| JPS58210396A (en) * | 1982-05-31 | 1983-12-07 | Mitsubishi Electric Corp | Self-priming motor pump |
| JPS5918297A (en) * | 1982-07-20 | 1984-01-30 | Mitsubishi Electric Corp | Scroll pump |
| JPH11153098A (en) * | 1997-09-19 | 1999-06-08 | Nikkiso Co Ltd | Freezing preventive device for canned motor pump |
| JPH11294366A (en) * | 1998-04-16 | 1999-10-26 | Nikkiso Co Ltd | Cryogenic pump with antifreezing mechanism |
| US20020076337A1 (en) * | 2000-12-15 | 2002-06-20 | Larry Rexroth | Potable water pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107373794A (en) * | 2017-07-25 | 2017-11-24 | 福建锐翔体育科技股份有限公司 | A kind of new energy Intelligent thermal-protection gym suit |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10331602A1 (en) | 2004-03-18 |
| CN1701183A (en) | 2005-11-23 |
| DE10331602B4 (en) | 2005-08-25 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 |