CN214036154U - Submersible pump - Google Patents
Submersible pump Download PDFInfo
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- CN214036154U CN214036154U CN202023079794.5U CN202023079794U CN214036154U CN 214036154 U CN214036154 U CN 214036154U CN 202023079794 U CN202023079794 U CN 202023079794U CN 214036154 U CN214036154 U CN 214036154U
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- permanent magnet
- impeller
- magnet motor
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Abstract
The embodiment of the utility model provides a submersible pump, it includes permanent-magnet machine, pump shaft, the pump body, impeller and kuppe. The permanent magnet motor comprises a shell, a rotating shaft arranged in the shell, a rotor and a stator. The first end of the pump shaft is connected with one end of the rotating shaft. The pump body is sleeved outside the pump shaft, and the first end of the pump body is in sealing butt joint with the casing of the permanent magnet motor. The impeller is connected to the second end of pump shaft and is located the pump body, and the impeller can rotate under the drive of pump shaft. The kuppe cover is established outside permanent-magnet motor, the pump body and impeller, and the kuppe has water inlet and delivery port, and forms the runner between the outer wall of kuppe and casing and the outer wall of the pump body to when the impeller rotates, can be with liquid by the water inlet suction in the runner and by the delivery port discharge. The permanent magnet motor is adopted to provide kinetic energy for the submersible pump, so that a large amount of electric energy can be saved. And the air guide sleeve can guide the liquid, so that the liquid can rapidly flow in the flow channel in the air guide sleeve.
Description
Technical Field
The utility model belongs to the technical field of the pump, especially, relate to a submersible pump.
Background
The submersible pump has a wide working range and is mainly applied to a deep well water pumping scene, and when the submersible pump is used, the whole unit of the submersible pump is submerged to work to pump underground water to the ground surface. However, in the prior art, the power of the motor of the submersible pump is generally selected according to the maximum load when the power is selected, which causes the phenomenon that the average load rate of the motor is less than 50%, namely the phenomenon that a large horse pulls a small car occurs. Especially, the efficiency and power factor near the rated point of the asynchronous motor are highest, and when the load is reduced, the efficiency and power factor are reduced greatly, so that the energy consumption of the motor is increased, the electric energy utilization rate of the motor is poor, and the system efficiency of the submersible pump is extremely unfavorable.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem that exists among the prior art, the utility model provides a immersible pump, this immersible pump adopt permanent-magnet machine to provide kinetic energy for the immersible pump, and can enough form the runner of liquid through setting up the kuppe, can also dispel the heat for permanent-magnet machine to improve permanent-magnet machine's radiating efficiency.
The embodiment of the utility model provides a submersible pump, include:
the permanent magnet motor comprises a shell, a rotating shaft, a rotor and a stator, wherein the rotating shaft, the rotor and the stator are arranged in the shell;
a pump shaft, a first end of which is connected with one end of the rotating shaft so as to rotate synchronously with the rotating shaft;
the pump body is sleeved outside the pump shaft, a first end of the pump body is in sealing butt joint with a casing of the permanent magnet motor, and a second end of the pump body is in sealing connection with a second end of the pump shaft;
the impeller is connected to the second end of the pump shaft and positioned outside the pump body, and the impeller can be driven by the pump shaft to rotate;
the kuppe, its cover is located permanent-magnet machine, the pump body with outside the impeller, the kuppe has and is close to the water inlet of one side of impeller, and be close to the delivery port of one side of permanent-magnet machine, just the inner wall of kuppe with the outer wall of casing with form the runner between the outer wall of the pump body, with when the impeller rotates, can with liquid by the water inlet suction in the runner and by the delivery port is discharged.
In some embodiments, the outer wall of the rotor is provided with a plurality of grooves arranged along the axial direction of the rotating shaft around the outer periphery thereof, each groove is correspondingly provided with a conducting bar, the conducting bars are matched to form an annular starting cage, and the starting cage is used for enabling the permanent magnet motor to be directly started under the power frequency voltage.
In some embodiments, the rotor further includes a plurality of magnetic steels disposed in the starting cage around an axis of the rotor, the plurality of magnetic steels are sequentially close to each other from beginning to end, and adjacent magnetic steels form a V-shaped structure.
In some embodiments, the air guide sleeve has a first body in a long cylinder shape and a second body formed by extending one end of the first body along the length direction of the first body and shrinking inwards, the permanent magnet motor is arranged in the first body, the pump body and the impeller are arranged in the second body, and one end of the first body, which is far away from the second body, is open to form the water outlet.
In some embodiments, the air guide sleeve further has a third body formed by extending and expanding outwards from one end of the second body far away from the first body, and one end of the third body far away from the second body is opened to form the water inlet.
In some embodiments, the permanent magnet motor further comprises a junction box disposed within the housing for connecting the stator to an external power source.
Compared with the prior art, the utility model discloses beneficial effect lies in: the utility model discloses a permanent-magnet machine provides kinetic energy for the immersible pump, and permanent-magnet machine can make the immersible pump keep higher work efficiency and power factor in whole work interval to practice thrift a large amount of electric energy. And the impeller of the submersible pump is positioned outside the pump body, the guide cover covers the permanent magnet motor, the pump body and the impeller, the guide cover can guide liquid, so that the liquid can flow rapidly in the flow channel in the guide cover, and the liquid in the flow channel flows through the permanent magnet motor and can dissipate heat of the permanent magnet motor, thereby improving the heat dissipation efficiency of the permanent magnet motor and prolonging the service life of the permanent magnet motor. Above-mentioned structural design is reasonable, can enough can also be for the high-efficient cooling of permanent-magnet machine saving the electric energy.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
Fig. 1 is a sectional view of a submersible pump according to an embodiment of the present invention;
fig. 2 is a partial cross-sectional view of a rotor of a permanent magnet motor of a submersible pump according to an embodiment of the present invention.
The members denoted by reference numerals in the drawings:
1-a permanent magnet motor; 11-a housing; 12-a rotating shaft; 13-a rotor; 14-a stator; 15-a groove; 2-a pump shaft; 3-a pump body; 4-an impeller; 5-a flow guide cover; 51-a water inlet; 52-water outlet; 53-a first body; 54-a second body; 55-a third body; 6-flow channel; 7-starting the cage; 71-conducting bars; 8-magnetic steel; 9-junction box.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description. The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and the specific embodiments, but not to be construed as limiting the invention.
The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present invention, when it is described that a specific device is located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
The embodiment of the utility model provides a submersible pump, as shown in figure 1, submersible pump includes permanent-magnet machine 1, pump shaft 2, the pump body 3, impeller 4 and kuppe 5. The permanent magnet motor 1 comprises a casing 11, a rotating shaft 12 arranged in the casing 11, a rotor 13 and a stator 14, wherein the rotor 13 is fixed outside the rotating shaft 12, and the stator 14 is sleeved outside the rotor 13. A first end of the pump shaft 2 is connected to one end of the rotation shaft 12 to rotate in synchronization with the rotation shaft 12. As shown in fig. 1, the pump body 3 is sleeved outside the pump shaft 2, a first end of the pump body 3 is in sealed butt joint with the casing 11 of the permanent magnet motor 1, and a second end of the pump body 3 is in sealed connection with a second end of the pump shaft 2. The impeller 4 is connected to the second end of the pump shaft 2 and located outside the pump body 3, and the impeller 4 can be driven by the pump shaft 2 to rotate. With continuing reference to fig. 1, the air guide sleeve 5 covers the permanent magnet motor 1, the pump body 3 and the impeller 4, the air guide sleeve 5 has a water inlet 51 near one side of the impeller 4 and a water outlet 52 near one side of the permanent magnet motor 1, and a flow channel 6 is formed between the inner wall of the air guide sleeve 5 and the outer wall of the casing 11 and the outer wall of the pump body 3, so that when the impeller 4 rotates, liquid can be pumped into the flow channel 6 from the water inlet 51 and discharged from the water outlet 52.
As shown in fig. 1, the first end of the pump body 3 is the left end of the pump body 3 in fig. 1, and the second end of the pump body 3 is the right end of the pump body 3 in fig. 1. The first end of the pump shaft 2 is the left end of the pump shaft 2 in fig. 1, and the second end of the pump shaft 2 is the right end of the pump shaft 2 in fig. 1.
It can be understood that the power factor of the permanent magnet motor 1 can be significantly improved without exciting current, so as to reduce the current of the stator 14 and the resistance loss of the stator 14, and the permanent magnet motor 1 can maintain higher efficiency and power factor in the range of 25% to 125% of rated load, which corresponds to a wide working interval of the submersible pump, so that the submersible pump can maintain higher working efficiency and power factor in the whole working interval, thereby saving a large amount of electric energy. Therefore, the submersible pump adopts the permanent magnet motor 1 to provide kinetic energy, so that electric energy can be saved, the system efficiency of the submersible pump is improved, and the problem of high energy consumption caused by the adoption of an asynchronous motor in the prior art is solved.
It is understood that the length direction of the body of the permanent magnet motor 1 may be the axial direction of the rotating shaft 12. The air guide sleeve 5 can be cylindrical, and the axis of the rotating shaft 12 of the permanent magnet motor 1 is collinear with the axis of the cylindrical air guide sleeve 5.
It will be understood that the pump shaft 2 can be coupled to the rotating shaft 12 of the pm machine 1 by a coupling to rotate the shaft 12 synchronously with the impeller 4 provided on the pump shaft 2, the impeller 4 rotates to draw liquid from the inlet 51 into the flow channel 6 and out through the outlet 52, and the outlet 52 can be connected to a drainage pipeline to transport the liquid drawn by the submersible pump to the surface through the drainage pipeline.
The utility model discloses a permanent-magnet machine 1 provides kinetic energy for the immersible pump, and permanent-magnet machine 1 can make the immersible pump keep higher work efficiency and power factor in whole work interval to practice thrift a large amount of electric energy. Besides, an impeller 4 of the submersible pump is positioned outside a pump body 3, a flow guide cover 5 covers the permanent magnet motor 1, the pump body 3 and the impeller 4, the flow guide cover 5 can guide liquid, so that the liquid can rapidly flow in a flow channel 6 in the flow guide cover 5, the liquid in the flow channel 6 flows through the permanent magnet motor 1 and can dissipate heat for the permanent magnet motor 1, the heat dissipation efficiency of the permanent magnet motor 1 is improved, and the service life of the permanent magnet motor 1 is prolonged. Above-mentioned structural design is reasonable, can enough be saving the electric energy and can also be for permanent-magnet machine 1 high efficiency cooling.
In some embodiments, as shown in fig. 1 and 2, the outer wall of the rotor 13 is provided with a plurality of grooves 15 around the outer periphery thereof, the grooves 15 are arranged along the axial direction of the rotating shaft 12, each groove 15 is provided with a corresponding conducting bar 71, the conducting bars 71 are matched to form an annular starting cage 7, and the starting cage 7 is used for enabling the permanent magnet motor 1 to be directly started under the power frequency voltage.
It can be understood that, the body of rotor 13 can be folded by a plurality of rotor preforming and fold and form, open recess 15 on the periphery of the body of rotor 13 that folds and fold to pour into the aluminium water in recess 15, wait to form above-mentioned conducting bar 71 behind the aluminium water shaping, the shape of above-mentioned conducting bar 71 is rectangular form, and a plurality of conducting bars 71 can evenly lay around the outer wall of rotor 13, a plurality of conducting bar 71 looks adaptations form and start cage 7, start cage 7 and can make permanent-magnet machine 1 directly start under the condition that does not pass through the converter, just promptly after permanent-magnet machine 1 inserts the power frequency power supply, just can operate. In addition, the starting cage 7 can be formed by adopting a casting process, so that the batch production is facilitated, and the production efficiency is improved.
In some embodiments, as shown in fig. 2, the rotor 13 further includes a plurality of magnetic steels 8 disposed inside the starting cage 7 and around the axis of the rotor 13, the plurality of magnetic steels 8 are sequentially close to each other end to end, and adjacent magnetic steels 8 form a V-shaped structure. The magnetic steel 8 can be a permanent magnet, the stator 14 and the rotor 13 of the permanent magnet motor 1 can synchronously rotate through the magnetic steel 8, and slip ratio between the stator and the rotor cannot exist, so that the permanent magnet motor 1 can stably operate.
In some embodiments, as shown in fig. 1, the pod 5 has a first body 53 in the shape of a long cylinder and a second body 54 formed by extending and contracting one end of the first body 53 along the length direction thereof, the permanent magnet motor 1 is disposed in the first body 53, the pump body 3 and the impeller 4 are disposed in the second body 54, and one end of the first body 53 away from the second body 54 is opened to form the water outlet 52.
It can be understood that the shape of the housing of the pump body 3 may correspond to the shape of the second body 54, and the flow channel 6 between the second body 54 and the pump body 3 can guide the liquid, so as to prevent the liquid from forming a vortex in the flow channel 6 and reduce the flow rate of the liquid. The first body 53 and the second body 54 can be detachably connected by bolts.
In some embodiments, as shown in fig. 1, the pod 5 further has a third body 55 formed by extending and expanding outward from an end of the second body 54 away from the first body 53, and an end of the third body 55 away from the second body 54 is opened to form the water inlet 51. The third body 55 may be formed in a bell mouth shape to increase a sectional area of the water inlet 51, thereby increasing a water inflow.
In some embodiments, as shown in fig. 1, the permanent magnet motor 1 further includes a junction box 9 disposed in the housing 11, and the junction box 9 is used for connecting the stator 14 with an external power source so that the external power source supplies power to the permanent magnet motor 1. The structure is simple, and the power supply for the permanent magnet motor 1 is convenient.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or variations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. Additionally, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (6)
1. A submersible pump, comprising:
the permanent magnet motor comprises a shell, a rotating shaft, a rotor and a stator, wherein the rotating shaft, the rotor and the stator are arranged in the shell;
a pump shaft, a first end of which is connected with one end of the rotating shaft so as to rotate synchronously with the rotating shaft;
the pump body is sleeved outside the pump shaft, a first end of the pump body is in sealing butt joint with a casing of the permanent magnet motor, and a second end of the pump body is in sealing connection with a second end of the pump shaft;
the impeller is connected to the second end of the pump shaft and positioned outside the pump body, and the impeller can be driven by the pump shaft to rotate;
the kuppe, its cover is located permanent magnet machine the pump body with outside the impeller, the kuppe has and is close to the water inlet of one side of impeller, and be close to the delivery port of one side of permanent magnet machine, just the inner wall of kuppe with the outer wall of casing with form the runner between the outer wall of the pump body, with when the impeller rotates, can with liquid by the water inlet suction in the runner and by the delivery port is discharged.
2. The submersible pump of claim 1, wherein the outer wall of the rotor is provided with a plurality of grooves axially arranged along the rotating shaft around the outer periphery of the rotor, each groove is correspondingly provided with a conducting bar, the conducting bars are matched to form an annular starting cage, and the starting cage is used for enabling the permanent magnet motor to be directly started under the power frequency voltage.
3. The submersible pump of claim 2, wherein the rotor further comprises a plurality of magnetic steels disposed about an axis of the rotor within the activation cage, the plurality of magnetic steels being sequentially proximate one another, and adjacent magnetic steels forming a V-shaped structure.
4. The submersible pump of claim 1, wherein the pod has a first body in the shape of a long cylinder and a second body formed by extending and shrinking inward from one end of the first body along the length direction of the first body, the permanent magnet motor is disposed in the first body, the pump body and the impeller are disposed in the second body, and the end of the first body, which is far away from the second body, is open to form the water outlet.
5. The submersible pump of claim 4, wherein the pod further comprises a third body formed by an outwardly flared extension of an end of the second body distal from the first body, the end of the third body distal from the second body being open to form the water inlet.
6. The submersible pump of claim 1, wherein the permanent magnet motor further comprises a terminal block disposed within the housing for connecting the stator to an external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023079794.5U CN214036154U (en) | 2020-12-18 | 2020-12-18 | Submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023079794.5U CN214036154U (en) | 2020-12-18 | 2020-12-18 | Submersible pump |
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| Publication Number | Publication Date |
|---|---|
| CN214036154U true CN214036154U (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023079794.5U Active CN214036154U (en) | 2020-12-18 | 2020-12-18 | Submersible pump |
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| CN (1) | CN214036154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113783347A (en) * | 2021-10-25 | 2021-12-10 | 畅正军 | Submersible sand-proof permanent magnet synchronous energy-saving motor |
-
2020
- 2020-12-18 CN CN202023079794.5U patent/CN214036154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113783347A (en) * | 2021-10-25 | 2021-12-10 | 畅正军 | Submersible sand-proof permanent magnet synchronous energy-saving motor |
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