CN203879804U - Shield pump conveying high pressure fluid - Google Patents
Shield pump conveying high pressure fluid Download PDFInfo
- Publication number
- CN203879804U CN203879804U CN201420053642.3U CN201420053642U CN203879804U CN 203879804 U CN203879804 U CN 203879804U CN 201420053642 U CN201420053642 U CN 201420053642U CN 203879804 U CN203879804 U CN 203879804U
- Authority
- CN
- China
- Prior art keywords
- stator
- iron core
- rotor
- shield
- motor casing
- 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
Links
- 239000012530 fluid Substances 0.000 title abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000007788 liquid Substances 0.000 claims description 9
- 238000010030 laminating Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A shield pump conveying high pressure fluid relates to the technical field of a motor pump and solves a technical problem related to shield pump bearing pressure. The shield pump comprises a shield motor, a pump shell and a pump impeller, wherein the shield motor is formed by a motor shell, a stator iron core and a rotor iron core; an inner cavity of the motor shell is divided into a cylindrical rotor accommodating cavity and a circular stator accommodating cavity via a stator shield sleeve; the stator iron core is fastened in the state accommodating cavity; the internal circumferential surface of the stator iron core is attached to the stator shield sleeve; the rotor iron core is placed in the rotor accommodating cavity; an overall enclosed rotor shield sleeve is placed on the periphery of the rotor iron core; two rigid protective sleeves are disposed in the stator accommodating cavity; the two rigid protective sleeves are both cylindrical and respectively coaxially arranged on the front end and the back end of the stator shield sleeve; and the internal circumferential surface of each rigid protective sleeve is attached to the stator shield sleeve. By the use of the shield pump conveying high pressure fluid, high pressure can be borne without effect on efficiency.
Description
Technical field
The utility model relates to electric-motor pump technology, particularly relates to a kind of technology of the canned motorpump for delivery of high-pressure liquid.
Background technique
Canned motorpump is as a kind of specific pump type of no-leakage pump, mainly formed by shield electric machine, pump case, pump impeller, the motor casing inner chamber of shield electric machine is separated into a drum-shaped rotor cavity volume by stator can, an and ring stator cavity volume that is set in rotor cavity volume periphery, the stator iron core of shield electric machine is fixed in stator cavity, rotor iron core is arranged in rotor cavity volume, and the periphery of rotor iron core is equipped with Rotor can.When canned motorpump work; the rotation that shield electric machine driven pump impeller is lasting; under the rotarily driving of pump impeller; external fluid enters pump case from the medium import of pump case; most of fluid wherein flows out from the media outlet of pump case with flow velocity faster; fraction fluid is imported in the rotor cavity volume of shield electric machine with cooling shield electric machine and lubricating bearings; rotor iron core rotates in fluid; stator can, Rotor can separate the fluid in stator iron core, rotor iron core and rotor cavity volume, to protect stator iron core and rotor iron core not to be etched.Because stator can is in stator field, and stator iron core and rotor iron core are kept apart, with respect to common electric machine, canned motorpump is except iron loss, stator copper loss, rotor aluminium damage, also there is stator can loss, Rotor can loss etc., and the numerical value of additional stator and rotor housing loss is all larger, make the efficiency of existing shield electric machine than low 5～10% left and right of the efficiency of common electric machine.
Improve the efficiency of shield electric machine, just must manage to reduce the loss of stator and rotor housing.According to conventional housing loss formula, the loss of housing is proportional to the thickness of housing, the specific resistance of inverse ratio and housing.Consider from the angle of loss, the thickness reduction of housing is conducive to reduce the loss of housing, is beneficial to the efficiency that improves shield electric machine.
But structurally, fluid need to be in shield electric machine inner loop, take away the heat that shield electric machine produces, stator iron core will be fitted completely in stator can, the heat that could completely stator iron core be produced like this passes to the fluid of shield electric machine inner loop, realizes the effect of cooling shield electric machine.
Stator can be divided into leading portion, stage casing, back segment from front to back successively, the stage casing of stator can is to fit with the inner peripheral surface of stator iron core, provided support for this section by stator iron core, and the leading portion of stator can, back segment all do not support, easily under hydrodynamic pressure, produce deformation, therefore, in the existing canned motorpump for delivery of high-pressure liquid, the stator can of its shield electric machine is all thicker, the loss that is directed at therefrom whole canned motorpump increases, Efficiency Decreasing.
Model utility content
For the defect existing in above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of efficiency and the high canned motorpump for delivery of high-pressure liquid of bearing pressure.
In order to solve the problems of the technologies described above, a kind of canned motorpump for delivery of high-pressure liquid provided by the utility model, comprises shield electric machine, pump case, pump impeller;
Described shield electric machine comprises the motor casing of integrally closed, and is arranged on stator iron core, rotor iron core in motor casing;
Described motor casing integrally closed, is fixed with a columnar stator can in the inner chamber of motor casing, the inner chamber of motor casing is separated into a drum-shaped rotor cavity volume by this stator can, and a ring stator cavity volume that is set in rotor cavity volume periphery;
Described stator iron core is fixed in stator cavity volume, the inner peripheral surface of stator iron core and stator can laminating;
Described rotor iron core is positioned at rotor cavity volume, the periphery of rotor iron core is equipped with the Rotor can of an integrally closed, the outer circumferential face of rotor iron core and the laminating of Rotor can, Rotor can is all stretched out at the rotating shaft two ends of rotor iron core, and is respectively arranged on motor casing through bearing;
Described pump case is fixed on the front end of motor casing, and described pump impeller is arranged in pump case, and coaxially affixed with the rotating shaft of rotor iron core;
It is characterized in that: in described stator cavity volume, be provided with two rigid sheath, these two rigid sheath are all drum-shaped, and are coaxially nested with the rear and front end at stator can respectively;
The inner peripheral surface of each rigid sheath all with stator can laminating, front rigid sheath extends to forward stator can forward position from stator iron core front-end face, rear rigid sheath extands rearward to edge stator can from stator iron core ear end face.
The canned motorpump for delivery of high-pressure liquid that the utility model provides, two sections of the front and back of stator can provide radial support by rigid sheath, the stage casing of stator can provides radial support by stator iron core, the ability that stator can bears interior pressure is higher, the design thickness of stator can be thinner, and the setting of rigid sheath can not increase the loss of electric machine, have the advantages that bearing capacity is high, loss is low, efficiency is high.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment's the canned motorpump for delivery of high-pressure liquid;
Fig. 2 is the enlarged view of the A part in Fig. 1.
Embodiment
Below in conjunction with brief description of the drawings, embodiment of the present utility model is described in further detail, but the present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof, all should list protection domain of the present utility model in.
As shown in Figure 1 and Figure 2, a kind of canned motorpump for delivery of high-pressure liquid that the utility model embodiment provides, comprises shield electric machine, pump case 5, pump impeller 6;
Described shield electric machine comprises the motor casing 1 of integrally closed, and is arranged on stator iron core 2, rotor iron core 3 in motor casing;
Described motor casing 1 integrally closed, is fixed with a columnar stator can 8 in the inner chamber of motor casing, the inner chamber of motor casing is separated into a drum-shaped rotor cavity volume by this stator can 8, and a ring stator cavity volume that is set in rotor cavity volume periphery;
Described stator iron core 2 is fixed in stator cavity volume, and the inner peripheral surface of stator iron core 2 and stator can 8 are fitted;
Described rotor iron core 3 is positioned at rotor cavity volume, the periphery of rotor iron core 3 is equipped with the Rotor can 7 of an integrally closed, the outer circumferential face of rotor iron core and the laminating of Rotor can, Rotor can 7 is all stretched out at the two ends of the rotating shaft 4 of rotor iron core, and is respectively arranged on motor casing 1 through bearing;
Described pump case 5 is fixed on the front end of motor casing 1, and described pump impeller 6 is arranged in pump case 5, and coaxially affixed with the rotating shaft 4 of rotor iron core;
It is characterized in that: in described stator cavity volume, be provided with two rigid sheath 9, these two rigid sheath 9 are all drum-shaped, and are coaxially nested with the rear and front end at stator can 8 respectively;
The inner peripheral surface of each rigid sheath 9 is all fitted with stator can 8, and front rigid sheath extends to forward stator can forward position from stator iron core front-end face, and rear rigid sheath extands rearward to edge stator can from stator iron core ear end face.
When the utility model embodiment works, the rotation that shield electric machine driven pump impeller is lasting, under the rotarily driving of pump impeller, external fluid enters pump case from the medium import of pump case, most of fluid wherein flows out from the media outlet of pump case with flow velocity faster, fraction fluid is imported in the rotor cavity volume of shield electric machine with cooling shield electric machine and lubricating bearings, rotor iron core rotates in fluid, stator can, Rotor can is by stator iron core, fluid in rotor iron core and rotor cavity volume separates, be not etched with protection stator iron core and rotor iron core, two sections of the front and back of stator can provide radial support by rigid sheath, the stage casing of stator can provides radial support by stator iron core, Rotor can provides radial support by rotor iron core.
Claims (1)
1. for delivery of a canned motorpump for high-pressure liquid, comprise shield electric machine, pump case, pump impeller;
Described shield electric machine comprises the motor casing of integrally closed, and is arranged on stator iron core, rotor iron core in motor casing;
Described motor casing integrally closed, is fixed with a columnar stator can in the inner chamber of motor casing, the inner chamber of motor casing is separated into a drum-shaped rotor cavity volume by this stator can, and a ring stator cavity volume that is set in rotor cavity volume periphery;
Described stator iron core is fixed in stator cavity volume, the inner peripheral surface of stator iron core and stator can laminating;
Described rotor iron core is positioned at rotor cavity volume, the periphery of rotor iron core is equipped with the Rotor can of an integrally closed, the outer circumferential face of rotor iron core and the laminating of Rotor can, Rotor can is all stretched out at the rotating shaft two ends of rotor iron core, and is respectively arranged on motor casing through bearing;
Described pump case is fixed on the front end of motor casing, and described pump impeller is arranged in pump case, and coaxially affixed with the rotating shaft of rotor iron core;
It is characterized in that: in described stator cavity volume, be provided with two rigid sheath, these two rigid sheath are all drum-shaped, and are coaxially nested with the rear and front end at stator can respectively;
The inner peripheral surface of each rigid sheath all with stator can laminating, front rigid sheath extends to forward stator can forward position from stator iron core front-end face, rear rigid sheath extands rearward to edge stator can from stator iron core ear end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053642.3U CN203879804U (en) | 2014-01-28 | 2014-01-28 | Shield pump conveying high pressure fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053642.3U CN203879804U (en) | 2014-01-28 | 2014-01-28 | Shield pump conveying high pressure fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879804U true CN203879804U (en) | 2014-10-15 |
Family
ID=51680305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420053642.3U Expired - Lifetime CN203879804U (en) | 2014-01-28 | 2014-01-28 | Shield pump conveying high pressure fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451888A (en) * | 2016-11-30 | 2017-02-22 | 安徽同华新能源动力股份有限公司 | Three-phase asynchronous motor |
-
2014
- 2014-01-28 CN CN201420053642.3U patent/CN203879804U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451888A (en) * | 2016-11-30 | 2017-02-22 | 安徽同华新能源动力股份有限公司 | Three-phase asynchronous motor |
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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 |
Granted publication date: 20141015 |
|
| CX01 | Expiry of patent term |