CN212033943U - Self-circulation heat dissipation device for motor of submersible electric pump - Google Patents
Self-circulation heat dissipation device for motor of submersible electric pump Download PDFInfo
- Publication number
- CN212033943U CN212033943U CN202020425487.9U CN202020425487U CN212033943U CN 212033943 U CN212033943 U CN 212033943U CN 202020425487 U CN202020425487 U CN 202020425487U CN 212033943 U CN212033943 U CN 212033943U
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- rotor
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- stator
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- 230000017525 heat dissipation Effects 0.000 title abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 34
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 239000000110 cooling liquid Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to the technical field of submersible electric pumps, in particular to a self-circulation heat dissipation device of a motor of a submersible electric pump; the motor comprises a machine shell, wherein a rotating shaft, a rotor core and a rotor winding are arranged in the middle of the machine shell and are arranged around the rotating shaft, a stator core and a stator winding are arranged outside the rotor core and the rotor winding, an annular air gap is formed between the rotor core and the rotor winding as well as between the stator core and the stator winding, the rotor core and the rotor winding as well as between the stator core and the stator winding divide the interior of the machine shell into an upper part of an inner cavity and a lower part of the inner cavity, the upper part of the inner cavity is communicated with the lower part of the inner cavity through the annular air gap, and a plurality of flow; the utility model has the advantages of simple and reasonable structure, the additional cost is low, the radiating effect is good, can effectively protect the motor to move under suitable environment, and the practicality is strong, is fit for promoting in the field.
Description
Technical Field
The utility model relates to a submerged motor pump technical field, concretely relates to submerged motor pump motor self-loopa heat abstractor.
Background
The submersible pump generally adopts an internal and external cooling mode. The inner cavity of the submersible pump is filled with cooling liquid, and the stator core, the stator winding, the rotor core, the rotor winding and the like are immersed in the cooling liquid and are directly cooled by the cooling liquid in the submersible pump. The heat generated by the loss of the stator core of the motor, the resistance loss of the stator winding and the partial resistance loss of the end winding is directly transferred to the stator core and is transferred to the cooling liquid flowing through the surface of the machine shell through the machine shell to be taken away. Part of heat generated by the resistance loss of the rotor winding and the loss of the rotor iron is directly transmitted to the stator through the air gap and is transmitted to cooling water outside the motor through the stator to be taken away; the other part is transmitted to the upper and lower inner cavity cooling liquid. And finally, the liquid is transmitted to the external liquid through the surfaces of parts such as a motor shell, a bearing seat and the like.
The main problems are as follows: 1. no matter the oil-immersed water pump motor or the water-cooled water pump motor, the internal temperature rise causes the expansion of cooling liquid, the requirement on the sealing performance is high, the shell and the outgoing line of the motor are easily damaged when the pressure is overlarge, and the service life of the motor is shortened; 2. the local temperature rise of the motor causes low efficiency, low power factor and poor overload capacity of the motor, and increases energy consumption; 3. the internal cooling liquid can not circulate up and down, and the whole machine shell can not be fully utilized for heat dissipation; 4. when the motor is in a sludge environment, a part of the motor is inserted into sludge, and the local temperature rises to cause the motor to be burnt.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a submerged motor pump motor self-loopa heat abstractor to solve the technical problem who proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a submerged motor pump motor is from circulation heat abstractor, includes the casing, the middle part is provided with the pivot in the casing, and encircles rotor core and the rotor winding that the pivot set up, rotor core and rotor winding are equipped with stator core and stator winding outward, form annular air gap between rotor core and rotor winding and stator core and the stator winding, rotor core and rotor winding, stator core and stator winding divide the casing internal partitioning for inner chamber upper portion and inner chamber lower part, be linked together through annular air gap between inner chamber upper portion and the inner chamber lower part, it is provided with the several water conservancy diversion hole to run through in the rotor core.
Furthermore, the plurality of flow guide holes are arranged in the rotor in a spiral direction.
Furthermore, the included angle formed by the axis of the opening of the diversion hole and the axis of the rotating shaft is 15 degrees.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of simple and reasonable structure, the additional cost is low, the radiating effect is good, can effectively protect the motor to move under suitable environment, and the practicality is strong, is fit for promoting in the field.
Drawings
Fig. 1 is a schematic structural view of a self-circulation heat dissipation device of a submersible electric pump motor according to the present invention;
FIG. 2 is a schematic view of the structure of the rotor and the flow guide holes of the present invention;
fig. 3 is a schematic view of the cooling liquid circulation of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a self-circulation heat dissipation device of a submersible electric pump motor comprises a machine shell 1, wherein a rotating shaft 2 and a rotor core and a rotor winding 3 which are arranged around the rotating shaft 2 are arranged in the middle of the machine shell 1, a stator core and a stator winding 4 are arranged outside the rotor core and the rotor winding 3, an annular air gap 5 is formed between the rotor core and the rotor winding 3 and between the stator core and the stator winding 4, the interior of the machine shell is divided into an upper cavity part 6 and a lower cavity part 7 by the rotor core and the rotor winding 3, the upper cavity part and the lower cavity part are communicated through the annular air gap 5, a plurality of flow guide holes 8 are arranged in the rotor core in a penetrating mode, and when the rotating shaft drives the rotor core and the rotor winding to start rotating, the plurality of flow guide holes form vortex flows for cooling liquid in an inner cavity (comprising the upper cavity part and the lower cavity; therefore, the cooling liquid passes through the flow guide holes and the annular air gaps, the cooling liquid forms circulation at the upper part and the lower part of the inner cavity, heat in the inner cavity of the motor is uniformly distributed, and the heat generated by the motor is dissipated through the shell and liquid outside the shell to achieve the self-cooling effect; this patent can effectively utilize all metal casing of submerged motor pump and outside liquid to dispel the heat the cooling, prevents that the inside local temperature rise of motor is too fast, too high to protection motor stator winding is not burnt out, guarantees motor operational environment.
As a specific implementation manner of the utility model, in order to make the diversion holes form a vortex when rotating along with the rotor, a plurality of diversion holes are arranged in the rotor in a spiral direction; the plurality of flow guide holes are all arranged on the rotor in a penetrating mode, namely the flow guide holes are communicated with the upper portion of the inner cavity and the lower portion of the inner cavity, and in order to enable the rotor to rotate, cooling liquid flows in a better circulating mode, so that when the flow guide holes are arranged, an included angle formed by the axis of the opening of each flow guide hole and the axis of the rotating shaft is 15 degrees, namely, the included angle formed by the axis of the rotating shaft of the opening of each flow guide hole facing the upper portion of the inner cavity and.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (1)
1. The utility model provides a submerged motor pump motor self-loopa heat abstractor which characterized in that: the motor comprises a machine shell, wherein a rotating shaft, a rotor core and a rotor winding are arranged in the middle of the machine shell and are arranged around the rotating shaft, a stator core and a stator winding are arranged outside the rotor core and the rotor winding, an annular air gap is formed between the rotor core and the rotor winding as well as between the stator core and the stator winding, the rotor core and the rotor winding as well as between the stator core and the stator winding divide the interior of the machine shell into an upper part of an inner cavity and a lower part of the inner cavity, the upper part of the inner cavity is communicated with the lower part of the inner cavity through the annular air gap, and a plurality of flow; the plurality of flow guide holes are arranged in the rotor in a spiral direction; the included angle formed by the axis of the opening of the diversion hole and the axis of the rotating shaft is 15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020425487.9U CN212033943U (en) | 2020-03-30 | 2020-03-30 | Self-circulation heat dissipation device for motor of submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020425487.9U CN212033943U (en) | 2020-03-30 | 2020-03-30 | Self-circulation heat dissipation device for motor of submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212033943U true CN212033943U (en) | 2020-11-27 |
Family
ID=73488578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020425487.9U Active CN212033943U (en) | 2020-03-30 | 2020-03-30 | Self-circulation heat dissipation device for motor of submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212033943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972781A (en) * | 2021-10-21 | 2022-01-25 | 苏州保邦电气有限公司 | Rotor shaft and motor |
-
2020
- 2020-03-30 CN CN202020425487.9U patent/CN212033943U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972781A (en) * | 2021-10-21 | 2022-01-25 | 苏州保邦电气有限公司 | Rotor shaft and motor |
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