CN103904810A - Water-filled type submerged motor forming water circulation inside - Google Patents
Water-filled type submerged motor forming water circulation inside Download PDFInfo
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- CN103904810A CN103904810A CN201410112812.5A CN201410112812A CN103904810A CN 103904810 A CN103904810 A CN 103904810A CN 201410112812 A CN201410112812 A CN 201410112812A CN 103904810 A CN103904810 A CN 103904810A
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Abstract
The invention provides a water-filled type submerged motor forming water circulation inside. The water-filled type submerged motor comprises a junction box, an upper guide bearing, a stator, a rotor, a lower guide bearing and a cooler, wherein the junction box is positioned on a spindle of the motor and is in bolt connection with the upper guide bearing, the stator and the lower guide bearing downwards in sequence, a pump wheel assembly is arranged at the tail end of the rotor, and a cooling water channel is formed outside the stator. A sliding plate assembly and a thrust bearing are arranged on the output shaft of the rotor, the sliding plate assembly is positioned between the lower guide bearing and the thrust bearing which is matched with the pump wheel assembly for use, and the cooler is positioned at the bottom of the motor. Water in the motor flows through the pump wheel assembly, the thrust bearing, the lower guide bearing, an air gap between the stator and the rotor, the cooling water channel and the cooler in sequence and then flows through the pump wheel assembly to form water circulation. When water-filled type submerged motor works, water in the water-filled type submerged motor form a water circulation process, water in the water-filled type submerged motor is not exchanged with the external environment during the whole circulation process, heat in the motor is balanced, and cooling effect is good.
Description
Technical field
The present invention relates to submersible electric motor, specifically a kind of inner Water submersible electric motor that forms water circulation.
Background technology
Wet motor can produce a large amount of heat in running, and these heat parts are produced by stator, rotor loss, and a part is fricative by between skateboard component and thrust bearing.Due to the particularity of wet motor structure, it not only will bear the axial force self producing in running, also will bear the axial force producing with its matching used high-pressure pump, and these axial forces is finally carried out balance by thrust bearing simultaneously.Owing to being subject to the effect of axial force, in motor operation course, the skateboard component of high speed rotating and static thrust bearing phase mutual friction together with rotor, this process produces a large amount of heats.Wet motor inside is full of clear water, has very large reinforcement compared with the radiating effect of dry type motor, and still, water is hot non-conductor, and only, under flow regime, the radiating effect of water just can be remarkable, and the flow velocity of water is larger, and radiating effect is better.In motor operation course, running up of rotor can make the water of motor internal form radially local circulation among a small circle, but this circulation can not meet the requirement of heat radiation far away, especially at stator, rotor middle part and skateboard component and thrust bearing friction area, the heat producing is not only many but also concentrated, if can not dispel the heat in time, tend to cause burning of motor winding wire and skateboard component, thereby affect motor useful life.Just need to make in this case the water of motor internal form circulating of certain speed, take the heat of heat concentrated area to region that heat is low, after making motor internal form relative heat balance, be dispersed into again external environment condition, thereby meet the heat radiation requirement of motor entirety.The water of considering the inside and outside portion of motor can not exchange, and this circulation can only rely on wet motor self to provide.
Summary of the invention
Technical assignment of the present invention is for the deficiencies in the prior art, provides a kind of inside of good heat dissipation effect to form the Water submersible electric motor of water circulation.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of inner Water submersible electric motor that forms water circulation, comprise terminal box, top guide bearing, stator, rotor, lower guide bearing and cooler, described terminal box is positioned on the main shaft of motor top, described terminal box downwards successively bolt connecting top guide bearing, stator and lower guide bearing, the output shaft end of described rotor is provided with pump impeller assembly, and described stator outside is provided with heat radiation water channel; The output shaft of described rotor is provided with skateboard component and thrust bearing, and described skateboard component is between lower guide bearing and thrust bearing, and the pump impeller assembly of described thrust bearing and described rotor of output shaft axle end is used in conjunction with; Described cooler is positioned at motor bottom.
For strengthening the sealing property of motor, the junction of described terminal box and electric machine main shaft is provided with gland, is respectively equipped with mechanical seal, outside framework oil seal between described gland and electric machine main shaft, terminal box.
For avoiding that coiling group is caused to damage, the coiling group of described stator interior adopts copper conductor, and described copper conductor surface scribbles polyethylene, and described polyethylene layer outside is provided with the sheath of polyolefine material.
Further, described cooler inside is provided with high strength magnet.
For better heat radiation, alleviate the weight of cooler, described cooler is formed by stainless steel tube and Plate Welding.
For fear of heat radiation water channel, by corrosion and corrosion, described heat radiation water channel adopts stainless steel.
Compared with prior art, the beneficial effect producing is the Water submersible electric motor of a kind of inner formation water circulation of the present invention:
When the present invention works, pump impeller assembly is arranged on the output shaft end of rotor, is used in conjunction with thrust bearing, and directly the flow through friction area of skateboard component and thrust bearing of the water of motor internal, has strengthened radiating effect; The heat radiation water channel of stator outside has increased the contact area of motor and external environment condition; Mechanical seal, outside framework oil seal make motor have good sealing property; The high strength magnet that coiling is organized in outside polyethylene layer and polyolefin jacket, cooler is protected coiling group jointly; Heat radiation water channel adopts stainless steel, in order to avoid by corrosion and corrosion; Simultaneously, under the present invention and pump impeller assembly are used in conjunction with, the water of motor internal flow through successively air gap between pump impeller assembly, thrust bearing, lower guide bearing, stator and rotor, heat radiation water channel, cooler, finally form a circulation through pump impeller assembly again, and whole cyclic process does not exchange with external environment condition generation water, balance the heat of motor internal, strengthened radiating effect.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present invention, and in figure, the direction of arrow represents the overall process of water circulation.
In figure, 1, heat radiation water channel, 2, top guide bearing, 3, stator, 4, rotor, 5, lower guide bearing, 6, skateboard component, 7, thrust bearing, 8, pump impeller assembly, 9, cooler, 10, high strength magnet, 11, terminal box, 12, gland, 13, mechanical seal, 14, outside framework oil seal.
Embodiment
Below in conjunction with accompanying drawing, a kind of inner Water submersible electric motor that forms water circulation of the present invention is described in detail below.
As shown in Figure 1, a kind of inner Water submersible electric motor that forms water circulation of the present invention, it comprises terminal box 11, top guide bearing 2, stator 3, rotor 4, lower guide bearing 5 and cooler 9, described terminal box 11 is positioned on the main shaft of motor top, described terminal box 11 downwards successively bolt connecting top guide bearing 2, stator 3 and lower guide bearing 5, the output shaft end of described rotor 4 is provided with pump impeller assembly 8, and described stator 3 outsides are provided with heat radiation water channel 1; The output shaft of described rotor 4 is provided with skateboard component 6 and thrust bearing 7, and described skateboard component 6 is between lower guide bearing 5 and thrust bearing 7, and described thrust bearing 7 is used in conjunction with the pump impeller assembly 8 of described rotor of output shaft axle end; Described cooler 9 is positioned at motor bottom.
For strengthening the sealing property of motor, described terminal box 11 is provided with gland 12 with the junction of electric machine main shaft, is respectively equipped with mechanical seal 13, outside framework oil seal 14 between described gland 12 and electric machine main shaft, terminal box 11.
For avoiding that coiling group is caused to damage, the coiling group of described stator 3 inside adopts copper conductor, and described copper conductor surface scribbles polyethylene, and described polyethylene layer outside is provided with the sheath of polyolefine material.
Further, described cooler 9 inside are provided with high strength magnet 10.
For better heat radiation, alleviate the weight of cooler 9, described cooler 9 is formed by stainless steel tube and Plate Welding.
For fear of heat radiation water channel 1, by corrosion and corrosion, described heat radiation water channel 1 adopts stainless steel.
Start and use, pump impeller assembly 8 is arranged on the output shaft end of rotor 4, be used in conjunction with thrust bearing 7, directly the flow through friction area of skateboard component 6 and thrust bearing 7 of the current of motor internal, then enter in the heat radiation water channel 1 of stator 3 outsides through the air gap between stator 3 and rotor 4, current enter cooler 9 from heat radiation water channel 1 flows out, finally by returned pump impeller assembly 8 places by cooler 9, thereby form a water cycle process, and whole water cycle process not with external environment condition in water exchange, radiating effect is good.In water cycle process, directly the flow through friction area of skateboard component 6 and thrust bearing 7 of current, has strengthened radiating effect; Heat radiation water channel 1 has increased the contact area of motor and external environment condition, has further strengthened radiating effect; Mechanical seal 13, outside framework oil seal 14 have been strengthened the sealing property of motor, in water cycle process, ensure that the water of inside and outside portion does not exchange; Outside polyethylene is organized in coiling and polyolefin jacket makes coiling group have water pressure resistance withstand voltage properties, and the high strength magnet 10 of cooler 9 inside can adsorb the iron impurity in current, and they protect coiling group jointly, avoid coiling group impaired.
Its processing and fabricating of Water submersible electric motor of a kind of inner formation water circulation of the present invention is very simple and convenient, processing and fabricating shown in by specification accompanying drawing.
Except the technical characterictic described in specification, be the known technology of those skilled in the art.
Claims (6)
1. an inner Water submersible electric motor that forms water circulation, comprise terminal box, top guide bearing, stator, rotor, lower guide bearing and cooler, described terminal box is positioned on the main shaft of motor top, described terminal box downwards successively bolt connecting top guide bearing, stator and lower guide bearing, the output shaft end of described rotor is provided with pump impeller assembly, it is characterized in that: described stator outside is provided with heat radiation water channel; The output shaft of described rotor is provided with skateboard component and thrust bearing, and described skateboard component is between lower guide bearing and thrust bearing, and the pump impeller assembly of described thrust bearing and described rotor of output shaft axle end is used in conjunction with; Described cooler is positioned at motor bottom; Air gap, heat radiation water channel, cooler that current are flowed through between pump impeller assembly, thrust bearing, lower guide bearing, stator and rotor successively at motor internal, the pump impeller assembly of again flowing through forms a water circulation.
2. a kind of inner Water submersible electric motor that forms water circulation according to claim 1, it is characterized in that: the junction of described terminal box and electric machine main shaft is provided with gland, between described gland and electric machine main shaft, terminal box, be respectively equipped with mechanical seal, outside framework oil seal.
3. a kind of inner Water submersible electric motor that forms water circulation according to claim 2, it is characterized in that: the coiling group of described stator interior adopts copper conductor, described copper conductor surface scribbles polyethylene, and described polyethylene layer outside is provided with the sheath of polyolefine material.
4. a kind of inner Water submersible electric motor that forms water circulation according to claim 1, is characterized in that: described cooler inside is provided with high strength magnet.
5. a kind of inner Water submersible electric motor that forms water circulation according to claim 4, is characterized in that: described cooler is formed by stainless steel tube and Plate Welding.
6. according to a kind of inner Water submersible electric motor that forms water circulation described in any one in claim 1-5, it is characterized in that: described heat radiation water channel adopts stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112812.5A CN103904810A (en) | 2014-03-25 | 2014-03-25 | Water-filled type submerged motor forming water circulation inside |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112812.5A CN103904810A (en) | 2014-03-25 | 2014-03-25 | Water-filled type submerged motor forming water circulation inside |
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| CN103904810A true CN103904810A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410112812.5A Pending CN103904810A (en) | 2014-03-25 | 2014-03-25 | Water-filled type submerged motor forming water circulation inside |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863850A (en) * | 2017-12-22 | 2018-03-30 | 蓝深集团股份有限公司 | It is a kind of that there is the efficiently submersible motor of cooling and self-cleaning function |
| SE1951033A1 (en) * | 2019-09-12 | 2021-03-13 | Zparq Ab | Electrical motor with an intrinsic cooling system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270132Y (en) * | 1996-07-10 | 1997-12-10 | 福建省平潭县机电厂 | DC submersible electric pump |
| CN2667782Y (en) * | 2003-12-12 | 2004-12-29 | 史志华 | Horizontal submersible motor |
| CN101070840A (en) * | 2007-06-09 | 2007-11-14 | 胡金卫 | Oil-submersible motor pump protection device |
| CN201118304Y (en) * | 2007-11-24 | 2008-09-17 | 山东颜山泵业有限公司 | High-pressure immersed electromotor |
| CN101515738A (en) * | 2009-03-09 | 2009-08-26 | 郑州大学 | Water circulation cooling structure in submersible motor |
| CN203312959U (en) * | 2013-06-18 | 2013-11-27 | 济宁安泰矿山设备制造有限公司 | High-voltage deepwater motor |
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2014
- 2014-03-25 CN CN201410112812.5A patent/CN103904810A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270132Y (en) * | 1996-07-10 | 1997-12-10 | 福建省平潭县机电厂 | DC submersible electric pump |
| CN2667782Y (en) * | 2003-12-12 | 2004-12-29 | 史志华 | Horizontal submersible motor |
| CN101070840A (en) * | 2007-06-09 | 2007-11-14 | 胡金卫 | Oil-submersible motor pump protection device |
| CN201118304Y (en) * | 2007-11-24 | 2008-09-17 | 山东颜山泵业有限公司 | High-pressure immersed electromotor |
| CN101515738A (en) * | 2009-03-09 | 2009-08-26 | 郑州大学 | Water circulation cooling structure in submersible motor |
| CN203312959U (en) * | 2013-06-18 | 2013-11-27 | 济宁安泰矿山设备制造有限公司 | High-voltage deepwater motor |
Non-Patent Citations (1)
| Title |
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| 黄家友等: ""浅谈潜水电动机的型式及设计特点"", 《大电机技术》, no. 04, 30 April 2011 (2011-04-30), pages 10 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863850A (en) * | 2017-12-22 | 2018-03-30 | 蓝深集团股份有限公司 | It is a kind of that there is the efficiently submersible motor of cooling and self-cleaning function |
| SE1951033A1 (en) * | 2019-09-12 | 2021-03-13 | Zparq Ab | Electrical motor with an intrinsic cooling system |
| SE544730C2 (en) * | 2019-09-12 | 2022-10-25 | Zparq Ab | Electrical motor with an intrinsic cooling system |
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Application publication date: 20140702 |
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