CN201209565Y - Magnetic pump preventing wear of granule - Google Patents
Magnetic pump preventing wear of granule Download PDFInfo
- Publication number
- CN201209565Y CN201209565Y CNU200820088004XU CN200820088004U CN201209565Y CN 201209565 Y CN201209565 Y CN 201209565Y CN U200820088004X U CNU200820088004X U CN U200820088004XU CN 200820088004 U CN200820088004 U CN 200820088004U CN 201209565 Y CN201209565 Y CN 201209565Y
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- CN
- China
- Prior art keywords
- pump
- separation sleeve
- magnetic drive
- magnet rotor
- drive pump
- 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 - Lifetime
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Abstract
The utility model relates to a particle wear resistant magnetic pump capable of ensuring operation safety; the rear end of the pump (1) is connected with a pump cover (4); the rear end of the pump cover is connected with a connecting frame (6); the connecting frame is provided with a separation sleeve (5) which is connected with the pump cover; the separation sleeve is provided with an internal magnetic rotor (7); the axis of the internal magnetic rotor is connected with a pump shaft (8); the pump shaft is connected with an impeller (3); an external magnetic rotor (9) connected with the output shaft of a motor (10) is arranged in the circular spacing between the connecting frame and the separation sleeve; the magnetic pump is characterized in that the inner bottom side of the separation sleeve is provided with a current stabilizing rib (14). The magnetic pump is applicable in transporting dangerous liquid media which are characterized by inflammability and explosiveness, toxin, high temperature and the like.
Description
Technical field
The utility model relates to the magnetic drive pump of carrying liquid.
Background technique
Magnetic drives pump structure such as following shown in Figure 1 mainly is made up of the pump housing 1, pump cover 4, impeller 3, interior magnet rotor 7, separation sleeve 5, outer magnet rotor 9, sliding bearing 11, pump shaft 8, motor 10 etc.The pump housing, pump cover, separation sleeve and mutual sealing gasket constitute the pressure pocket of sealing.Interior magnet rotor is closed in the separation sleeve and with pump shaft and links, and outer magnet rotor is positioned at the separation sleeve outside and links with motor output shaft.Because magnetic field energy penetrates the separation sleeve of no magnetic, therefore when magnet rotor outside the driven by motor rotated, interior magnet rotor rotated through magnetic force, drove pump shaft and continuous wheel rotation thereof, to the medium acting of carrying.Magnetic drive pump is not owing to there is motive sealing, so there is not leakage fully, it often is used to carry dangerous liquid media such as inflammable and explosive, hypertoxic, high temperature.The separation sleeve of metal manufacturing will produce eddy current in the running and generate heat, so magnetic drive pump needs to draw a part of medium to the separation sleeve cooling that circulates shown in the arrow among Fig. 1 in the impeller outlet high pressure side.Magnetic drive pump generally all adopts sliding bearing, and separation sleeve is again a thin-wall part, and therefore the medium that requires magnetic drive pump to carry does not contain solid particle.But in fact, because aspects such as device, pipeline, raw material, maintenance, management often contain micro-solid particle in the liquid medium.The flow direction such as Fig. 5, shown in Figure 6 of general magnetic drive pump cooling circulation liquid: solid particle is along with the space of circulating liquid between separation sleeve 5 and interior magnet rotor 7, in the space in entering between magnet rotor end and the separation sleeve bottom in the liquid.Because near the liquid the adhesion characteristics of liquid, the rotation of interior magnet rotor have driven rotates together.And the rotation of liquid forces the solid particle and then rotation together that is mixed in the liquid.Because the proportion of solid particle is usually greater than the proportion of liquid, the centrifugal force of the solid particle that is rotating is also greater than the centrifugal force of liquid itself, the centrifugal force of solid particle has overcome liquid resistance, making solid particle be thrown toward the outside is the separation sleeve inner hole wall, does not follow liquid and circulates and be detained at bottom side angle place.The solid particle that is detained at the separation sleeve inwall is along with the rotation of the liquid internal face that weares and teares again and again, and the thin-walled separation sleeve of will grinding away very soon causes the leakage of medium, and safety is worked the mischief.
Summary of the invention
Magnetic drive pump causes the problem of leakage in the prior art because of separation sleeve easily is worn thereby the present invention will solve, the magnetic drive pump of a kind of anti-abrasion of particles of the present utility model is provided for this reason, this magnetic drive pump can prevent effectively that separation sleeve is worn and causes leakage, ensures the operation of magnetic drive pump long-term safety.
For addressing the above problem, the technical solution adopted in the utility model is to be provided with the pump housing, pump housing rear end is associated with pump cover, the pump cover rear end is associated with hitch, is provided with separation sleeve in the hitch and is coupled to pump cover, is provided with interior magnet rotor in the separation sleeve, place, interior magnet rotor axle center is associated with pump shaft, be associated with impeller on the pump shaft, be provided with the outer magnet rotor that links with motor output shaft in the annular space of described hitch and separation sleeve, its special way is that described separation sleeve inner bottom surface is provided with the fin sheet.
Described fin sheet described in the utility model can be link with described separation sleeve inner circle wall and the footpath inwardly prolong.
Described fin sheet also can be link with described separation sleeve inner circle wall and with radial skew one angle in prolong.
Described fin sheet can also be with described separation sleeve inner circle wall link and curved in prolong.
Leave the gap between fin sheet described in the utility model and the interior magnet rotor end face, can grazing not arrive the fin sheet when magnet rotor rotates in guaranteeing.Described fin sheet can be connected as a single entity with separation sleeve and directly be processed to form, and also can install through methods such as welding.
The utility model is because the separation sleeve inner bottom surface is provided with the fin sheet, so when pump turns round, rotating liquid in the space between interior magnet rotor end and the separation sleeve bottom is subjected to stopping of fin sheet, the rotational speed of liquid reduces greatly between the fin sheet, the centrifugal force of the solid particle in the liquid is also reduced greatly, centrifugal force is little, just can not overcome and liquid between the resistance of relative movement, solid particle just enters together along circulating liquid carries the liquid main flow to take away, the solid particle of having avoided entering once in a while is trapped in rotation angle position for a long time and causes and the heel and toe wear of separation sleeve ensured the Security of magnetic drive pump operation.
Description of drawings
Fig. 1 is a kind of magnetic drive pump in the prior art;
Fig. 2 is a kind of magnetic drive pump of the present utility model;
Fig. 3 is the separation sleeve structural representation in the utility model;
Fig. 4 is Fig. 3 separation sleeve left view;
Fig. 5 is magnetic drive pump separation sleeve and the interior magnet rotor assembly schematic representation in the prior art;
Fig. 6 is the magnetic drive pump separation sleeve bottom liquid stream schematic representation in the prior art;
Fig. 7 is the utility model magnetic drive pump separation sleeve and interior magnet rotor assembly schematic representation;
Fig. 8 is a kind of separation sleeve polycrystalline substance of the utility model magnetic drive pump and liquid flow diagram;
Fig. 9 is another kind of separation sleeve polycrystalline substance of the utility model magnetic drive pump and liquid flow diagram;
Figure 10 is another separation sleeve polycrystalline substance of the utility model magnetic drive pump and liquid flow diagram.
Embodiment
Embodiment one
The magnetic drive pump of anti-abrasion of particles, the pump housing 1 rear end is associated with pump cover 4, the pump cover rear end is associated with hitch 6, be provided with separation sleeve 5 in the hitch and be coupled to pump cover, magnet rotor 7 in being provided with in the separation sleeve, place, interior magnet rotor axle center is associated with pump shaft 8, be associated with impeller 3 through impeller nut 2 on the pump shaft and be positioned at the pump housing, in the annular space of hitch 6 and separation sleeve 5, be provided with the outer magnet rotor 9 that links with motor 10 output shafts, be associated with axle sleeve 12 on the pump shaft, axle sleeve is provided with bearing 11 outward, and the pump shaft rear portion is provided with thrust ring 13 between bearing and interior magnet rotor, the separation sleeve inner bottom surface is provided with fin sheet 14, and fin sheet and described separation sleeve inner circle wall link and inwardly prolong in the footpath.
Embodiment two
The magnetic drive pump of the anti-abrasion of particles of this example, be different from routine be described fin sheet be link with the separation sleeve inner circle wall and with radial skew one angle in prolong.Other structure is identical with last example.
Embodiment three
The magnetic drive pump of the anti-abrasion of particles of this example, what be different from embodiment two is that described fin sheet is to link with the separation sleeve inner circle wall also to prolong in the arc curve.Other structure is identical with example two.
Claims (4)
1, the magnetic drive pump of anti-abrasion of particles, the pump housing (1) rear end is associated with pump cover (4), the pump cover rear end is associated with hitch (6), be provided with separation sleeve (5) in the hitch and be coupled to pump cover, be provided with interior magnet rotor (7) in the separation sleeve, place, interior magnet rotor axle center is associated with pump shaft (8), is associated with impeller (3) on the pump shaft, in the annular space of described hitch and separation sleeve, be provided with the outer magnet rotor (9) that links with motor (10) output shaft, it is characterized in that described separation sleeve inner bottom surface is provided with fin sheet (14).
2, the magnetic drive pump of anti-abrasion of particles as claimed in claim 1 is characterized in that described fin sheet and described separation sleeve inner circle wall link and inwardly prolong in the footpath.
3, the magnetic drive pump of anti-abrasion of particles as claimed in claim 1, it is characterized in that described fin sheet and described separation sleeve inner circle wall link and with radial skew one angle in prolong.
4, the magnetic drive pump of anti-abrasion of particles as claimed in claim 1, it is characterized in that described fin sheet and described separation sleeve inner circle wall link and curved curve in prolong.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820088004XU CN201209565Y (en) | 2008-05-29 | 2008-05-29 | Magnetic pump preventing wear of granule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820088004XU CN201209565Y (en) | 2008-05-29 | 2008-05-29 | Magnetic pump preventing wear of granule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201209565Y true CN201209565Y (en) | 2009-03-18 |
Family
ID=40480299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820088004XU Expired - Lifetime CN201209565Y (en) | 2008-05-29 | 2008-05-29 | Magnetic pump preventing wear of granule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201209565Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103998787A (en) * | 2011-11-29 | 2014-08-20 | 威乐欧洲股份公司 | Wet-rotor motor pump |
| CN107448394A (en) * | 2016-05-30 | 2017-12-08 | 标立电机有限公司 | The centrifugal pump of electricity |
-
2008
- 2008-05-29 CN CNU200820088004XU patent/CN201209565Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103998787A (en) * | 2011-11-29 | 2014-08-20 | 威乐欧洲股份公司 | Wet-rotor motor pump |
| CN107448394A (en) * | 2016-05-30 | 2017-12-08 | 标立电机有限公司 | The centrifugal pump of electricity |
| CN107448394B (en) * | 2016-05-30 | 2021-03-26 | 标立电机有限公司 | Electric centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090318 |