CN102889214A - High-efficiency permanent magnet canned motor pump - Google Patents
High-efficiency permanent magnet canned motor pump Download PDFInfo
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- CN102889214A CN102889214A CN 201110199874 CN201110199874A CN102889214A CN 102889214 A CN102889214 A CN 102889214A CN 201110199874 CN201110199874 CN 201110199874 CN 201110199874 A CN201110199874 A CN 201110199874A CN 102889214 A CN102889214 A CN 102889214A
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- motor
- permanent magnet
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Abstract
The invention discloses a high-efficiency permanent magnet canned motor pump, of which a motor does not generate idle-work exciting current, so that stator current and stator resistance loss are reduced, the efficiency and the power factor are improved, furthermore, the gross efficiency of the pump is improved, and energy is saved. Zero leakage can be achieved because of static seal instead of motive seal. The high-efficiency permanent magnet motor is combined with the canned motor pump to improve the efficiency and the power factor of the motor, and reduce the stator current, thereby improving unit efficiency and saving electric energy.
Description
Technical field
The invention belongs to the transfer pump technical field, more particularly, belong to a kind of efficient permanent-magnet shielding electric pump.
Background technique
The motor of existing shielded electric-pump mostly is common phase asynchronous shield electric machine, and shield electric machine is by the bearing of stator, the cage rotor that rotates in stator, two end supports rotor, the bearing support of rigid bearing.Because the diameter of stator bore of shield electric machine surface and rotor diameter surface are coated with the thin-wall stainless steel plate, have increased simultaneously the gap between stator and the rotor, greatly increased the loss of electric machine, so the electric efficiency of shielded electric-pump are also lower than common electric machine, the waste electric energy.
Summary of the invention
The present invention mainly is for the inefficient shortcoming of common shielded electric-pump, and a kind of high efficiency shielded electric-pump is provided.
A kind of efficient permanent-magnet shielding electric pump of the present invention comprises pump head and shield electric machine, it is characterized in that: diameter of stator bore, rotor diameter all are surrounded by the thin-walled steel plate; Stator and two ends of rotor face have flange; Thin-walled steel plate and the flange welding of diameter of stator bore, rotor diameter are in the same place.
The present invention is in order to solve the inefficient problem of shielded electric-pump, efficient permanent magnet motor is applied in the shielded electric-pump, invented efficient permanent-magnet shielding electric pump, efficient permanent-magnet shielding electric pump mainly is comprised of pump head and permanent magnet-shield motor, pump head comprises the pump housing and the impeller that rotates in the pump housing, the permanent magnet-shield motor is introduced the terminal box of power cable by the bearing of the rotor that rotates in stator, the stator, the described rotor of two end supports, the bearing support of rigid bearing.Compare with common canned motorpump, the permanent magnet-shield electric pump has adopted the higher magneto of efficient, has inlayed permanent magnet in the rotor iron core of magneto, has not had idle field current, has reduced stator current and primary resistor loss, has improved efficient and power factor.
The impeller shaft of efficient permanent-magnet shielding electric pump and motor shaft are all one, all adopt the sealing gasket static seal with the junction plane of extraneous UNICOM since with extraneous stationary seal, therefore reach complete in revealing.Diameter of stator bore, rotor diameter all are surrounded by the thin-walled steel plate, and both ends of the surface have flange, and the thin-walled steel plate is in the same place with described flange welding, the iron core of realizing the iron core of stator and rotor not with medium contact, avoid being corroded.
The present invention mainly has the following advantages compared with similar products: inlayed permanent magnet in the rotor iron core of motor, do not had idle field current, stator current and primary resistor loss have been reduced, improve efficient and power factor, thereby improved the total efficiency of pump, reached energy-conservation purpose; Only have the static seal stationary seal, can reach zero leakage.Efficient permanent magnet motor and shielded electric-pump are combined, improved efficient and the power factor of motor, reduced stator current, thereby improve unit efficiency, saved electric energy.
Description of drawings
Accompanying drawing 1 is the structural representation of efficient permanent-magnet shielding electric pump of the present invention.
Embodiment
Fig. 1 is the structural representation of efficient permanent-magnet shielding electric pump of the present invention, further specifies below in conjunction with accompanying drawing.Efficient permanent-magnet shielding electric pump of the present invention, mainly partly formed by pump head part and shield electric machine, comprise the pump housing 1, nut 2, inducer 4, impeller 5, key 6, seal ring 7, bearing support 8, axle sleeve 9, the first clamping bolt 10, spring bearing 12, rotor 14, stator 15, spring bearing 16, screw mouth 17, seal ring 18, packing ring 19, the second clamping bolt 20, main shaft 21, bearing support 22, terminal box 25, screw 26.
Pump head partly comprises the pump housing 1 and impeller 5, the inducer 4 of rotation in the pump housing 1, impeller shaft and motor shaft are all a main shaft 21, impeller 5, inducer 4 are installed on the main shaft 21, and impeller 5 is installed on the main shaft 21 by key 6, and impeller 5 and inducer 4 are fastened on the main shaft 21 by bolt 2.Axle sleeve 9 is sleeved on the main shaft 21, is used for carrying out fastening to spring bearing 12.
Shield electric machine partly comprises spring bearing 12 and spring bearing 16, the bearing support 8 that is used for fixed support bearing 12 and the bearing support 22 of fixed support bearing 16 at stator 15, rotor 14, rotor 14 two ends, and these parts are installed in the motor body 13; Together seal ring 18 is arranged between bearing support 22 and the motor body 13, and bearing support 22 and motor body 13 couple together by several bolts 20, and the terminal box 25 of power cable is installed on the motor body 13.The pump housing 1 and motor body 13 link together by clamping bolt 10, and together seal ring 7 is arranged between the pump housing 1 and the motor body 12.Packing ring 19 is installed on the main shaft 21, is used for fixed support bearing 16.Have screw mouth 17 on the block bearing 16, screw mouth 17 is used for block bearing 16 and bearing support 22 are tightened up.Have screw 26 on the bearing support 8, screw 26 is used for installing fastening screw trip bolt.
Inlayed permanent magnet in the rotor iron core.Impeller shaft and motor shaft are all one, and with the junction plane employing sealing gasket static seal of extraneous UNICOM, therefore stationary seal reaches complete in revealing.Stator 15 internal diameters, rotor 14 external diameters all are surrounded by the thin-walled steel plate, and both ends of the surface have flange, and the thin-walled steel plate is in the same place with flange welding, realize stator 15, rotor 14 not with medium contact, avoid being corroded.The lubricated of the cooling of motor and bearing finished by medium itself.
Claims (1)
1. an efficient permanent-magnet shielding electric pump comprises pump head and shield electric machine, it is characterized in that: stator (15) internal diameter, rotor (14) external diameter all are surrounded by the thin-walled steel plate; Stator (15) and rotor (14) both ends of the surface have flange; The thin-walled steel plate of stator (15) internal diameter, rotor (14) external diameter is in the same place with flange welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110199874 CN102889214A (en) | 2011-07-18 | 2011-07-18 | High-efficiency permanent magnet canned motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110199874 CN102889214A (en) | 2011-07-18 | 2011-07-18 | High-efficiency permanent magnet canned motor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102889214A true CN102889214A (en) | 2013-01-23 |
Family
ID=47532843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110199874 Pending CN102889214A (en) | 2011-07-18 | 2011-07-18 | High-efficiency permanent magnet canned motor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889214A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629118A (en) * | 2013-12-10 | 2014-03-12 | 江苏大学 | Vertical pipeline permanent magnet canned motor pump |
| CN105099025A (en) * | 2014-05-21 | 2015-11-25 | 上海佰诺泵阀有限公司 | Energy-saving canned motor pump |
| CN106208487A (en) * | 2016-07-12 | 2016-12-07 | 合肥新沪屏蔽泵有限公司 | A kind of motor for shielded electric pump |
| CN110929407A (en) * | 2019-11-29 | 2020-03-27 | 清华大学 | Energy efficiency evaluation method of shielding electric pump for heating |
-
2011
- 2011-07-18 CN CN 201110199874 patent/CN102889214A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629118A (en) * | 2013-12-10 | 2014-03-12 | 江苏大学 | Vertical pipeline permanent magnet canned motor pump |
| CN103629118B (en) * | 2013-12-10 | 2016-03-02 | 江苏大学 | A kind of riser permanent magnet shield pump |
| CN105099025A (en) * | 2014-05-21 | 2015-11-25 | 上海佰诺泵阀有限公司 | Energy-saving canned motor pump |
| CN106208487A (en) * | 2016-07-12 | 2016-12-07 | 合肥新沪屏蔽泵有限公司 | A kind of motor for shielded electric pump |
| CN110929407A (en) * | 2019-11-29 | 2020-03-27 | 清华大学 | Energy efficiency evaluation method of shielding electric pump for heating |
| CN110929407B (en) * | 2019-11-29 | 2021-06-08 | 清华大学 | Energy efficiency evaluation method of shielding electric pump for heating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |