CN220470246U - Impeller built-in bidirectional full-through-flow submersible electric pump - Google Patents
Impeller built-in bidirectional full-through-flow submersible electric pump Download PDFInfo
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- CN220470246U CN220470246U CN202322169516.6U CN202322169516U CN220470246U CN 220470246 U CN220470246 U CN 220470246U CN 202322169516 U CN202322169516 U CN 202322169516U CN 220470246 U CN220470246 U CN 220470246U
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- impeller
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- bearing
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 238000000819 phase cycle Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000555745 Sciuridae Species 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a bidirectional full-through submersible pump with an internal impeller, which relates to the field of submersible pumps and comprises a water inlet body, a water outlet body, a wet stator and a rotor with straight blades, wherein the two axial ends of a wet stator base are respectively connected with one ends of the water inlet body and the water outlet body through bolts, bearing cavities are arranged in the water inlet body and the water outlet body, a rotating shaft is movably connected in the bearing cavities through bearings, the outer circumference of the rotating shaft is connected with the impeller, a circle of through holes are uniformly formed in the end face of a water inlet flange of the water inlet body and the end face of a water outlet flange of the water outlet body respectively, a rotor iron core and the outer ring of the impeller are welded into an integral structure, pressing rings are arranged at the two ends of the rotor iron core, and guide bars penetrate through the pressing rings and the rotor iron core and are blocked and welded on the pressing rings. The utility model can realize the function of water flow reversing by only switching the two-phase sequence of any three-phase power supply, and the electric pump is not required to be disassembled, lifted out of a pump pit and turned around for loading, thereby saving manpower and material resources, and the heat generated by the stator is directly exchanged with environmental water, so that the cooling effect is better.
Description
Technical Field
The utility model relates to the field of submersible pumps, in particular to a bidirectional full-through-flow submersible pump with an internal impeller.
Background
At present, a two-way submersible pump comprises a dry two-way submersible pump and a wet two-way submersible pump, and the general two-way running submersible pump is characterized in that when an electric pump is required to run reversely, after the electric pump is lifted out of a pump pit, the electric pump is installed again in one direction, namely, the original water inlet side is installed to the water outlet side, and meanwhile, the original water outlet side is installed to the water inlet side, so that the phase sequence of the electric pump connected with a power supply is unchanged, the rotation direction of a motor is unchanged, and only the direction is changed relative to the water inlet side and the water outlet side. The reversing is simple, but enough mechanical equipment is needed to assist in lifting, enough manpower and material resources are needed to finish disassembly and assembly of the pump during reversing, and meanwhile, after the water inlet and outlet gate is closed in advance, the disassembly and assembly work can be realized, the operation is complicated, and the manpower and material resources are consumed.
The dry submersible pump is generally a QZ (H) -type submersible shaft (mixed) flow pump and a ZLB-type conventional axial flow pump. These types of dry submersible pumps are generally relatively large in structure and complex in structure, and require a relatively complex civil structure to meet the installation and use requirements. The cost in the aspect of economy is increased, the investment of manpower resources is increased, and professional staff is required to operate each time of installation and disassembly. Wet submersible pumps are typically QJ-type well submersible pumps, QS-type water-filled pumps, and QKSG-type mining submersible pumps. The wet submersible electric pump is generally sealed with a certain amount of water in the inner cavity of the motor, the electric pump is cooled by the water in the inner cavity of the motor and the environmental water on the outer surface of the casing when in operation, but the non-motor cavity is communicated with the external environment, and the purpose of cooling is achieved by exchanging generated heat with the environmental water.
The stator of the QZ (H) type submersible shaft (mixed) flow electric pump is of a dry type structure, the rotor is of a squirrel cage type structure, working water flow circulates on the outer wall of a stator shell, and the rotor is arranged inside the dry type submersible motor. When the motor works, heat is dissipated only by heat conduction of the outer wall of the stator, so that the heat dissipation effect is poor, and the heat in the motor cavity cannot be timely and effectively dissipated after long-time operation, so that the stator and the rotor are rubbed. The impeller of the electric pump with the structure is arranged below the guide vane body, the impeller and the shaft are connected through keys, and the pump has a great water thrust acting on the impeller during starting and running and then is transmitted to the rotor, so that the requirement on bearing load of the electric pump is high.
Therefore, the technical personnel in the art provide a built-in bidirectional full-through-flow submersible pump with impellers, so that the submersible pump is simple in water flow reversing, the stator is communicated with ambient water for heat exchange, cooling is convenient, and heat dissipation is efficient.
Disclosure of Invention
The utility model aims to provide a bidirectional full-through-flow submersible pump with an internal impeller, which solves the problems that the existing submersible pump is complex in reversing operation, consumes manpower and material resources, and only depends on water in a motor cavity and environmental water on the outer surface of a shell to dissipate heat, so that the heat dissipation effect is poor.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model discloses a bidirectional full-through-flow submersible electric pump with built-in impellers, which comprises a water inlet body, a water outlet body, a wet stator and a rotor with straight blades, wherein the two axial ends of a wet stator base are respectively connected with one ends of the water inlet body and one end of the water outlet body through bolts, bearing cavities are arranged in the water inlet body and the water outlet body, a rotating shaft is movably connected in the bearing cavities through bearings, the outer circumference of the rotating shaft is connected with the impellers, a circle of through holes are uniformly formed in the end face of a water inlet flange of the water inlet body and the end face of a water outlet flange of the water outlet body respectively, a rotor iron core and the outer ring of the impellers are welded into an integral structure, pressing rings are arranged at the two ends of the rotor iron core, and guide bars penetrate through the pressing rings and the rotor iron cores and are blocked and welded on the pressing rings.
Preferably, the blade is a straight blade structure.
Preferably, the wet stator employs water-resistant winding coils, and the wet stator and the rotor are mated.
Preferably, the wet stator is connected with different power phase sequences to drive the rotor to rotate forward and backward.
Preferably, two ends of the rotating shaft respectively extend through the bearing cavity of the water inlet body and the bearing cavity of the water outlet body.
Preferably, the bearing in the bearing cavity of the water inlet body and the bearing in the bearing cavity of the water outlet body are sealed in the water of the environment.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the impeller built-in bidirectional full-through-flow submersible electric pump, when water flow is required to flow in the forward direction or the reverse direction, two-phase sequences of any three-phase power supply are only required to be switched through the control cabinet in the control room, and the electric pump is not required to be disassembled, lifted out of a pump pit and turned around again to be installed in an operation position, so that the use of manpower and material resources is greatly saved, and the popularization value is high; the inner cavity of the stator is communicated with the outside environment through a circle of through holes, and heat generated by the stator is directly subjected to heat exchange with the environment water, so that the cooling effect is better; the submersible pump has the advantages of small overall dimension, compact structure, short flow channel, uniform flow velocity distribution, smooth flow state, small local loss and high device efficiency, and is compared with the traditional dry submersible axial flow pump, the axial dimension of the submersible pump is shortened by nearly half.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of a built-in impeller bi-directional full-through-flow submersible pump according to the present utility model;
fig. 2 is a top view of the rotor and impeller connection of the present utility model.
Reference numerals illustrate: 1. a water inlet body; 2. a water outlet body; 3. a wet stator; 4. a rotor; 5. a blade; 6. a pressing ring; 7. a conducting bar; 8. an impeller.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1-2, a bidirectional full-through-flow submersible pump with built-in impellers comprises a water inlet body 1, a water outlet body 2, a wet stator 3 and a rotor 4 with straight blades, wherein two axial ends of a machine seat of the wet stator 3 are respectively connected with one end of the water inlet body 1 and one end of the water outlet body 2 through bolts, bearing cavities are arranged in the water inlet body 1 and the water outlet body 2, rotating shafts are movably connected in the bearing cavities through bearings, the outer circumference of each rotating shaft is connected with an impeller 8, a circle of through holes are uniformly formed in the end face of a water inlet flange of the water inlet body 1 and the end face of a water outlet flange of the water outlet body 2 respectively, a rotor core and the outer ring of the impeller 8 are welded into a whole structure, a pressing ring 6 is arranged at two ends of the rotor core, and guide bars 7 penetrate through the pressing ring 6 and the rotor core and are blocked and welded on the pressing ring 6.
Specifically, the stator is connected with alternating current to generate a rotating magnetic field, the rotor and the copper guide bars perform cutting magnetic induction line motion in the magnetic field to drive the impeller to rotate, namely, the impeller does work on water flow near the blades, the consumed electric energy is converted into mechanical energy, the water flow is continuously conveyed away, the water inlet side of the impeller becomes a low-pressure area, the water inlet is a relatively high-pressure area, the pressure difference can enable the water flow of the water inlet side to be continuously supplemented, the water flow of the water outlet side is continuously conveyed, and therefore the requirement of conveying rated flow of the electric pump under a certain lift can be met.
The blades 5 are of straight blade structures, so that forward water outlet of the water pump is guaranteed, and meanwhile, hydraulic parameters and performance of reverse operation are also considered, so that the impeller built-in bidirectional full-through-flow pump can operate very effectively.
The wet stator 3 adopts a waterproof winding coil, the winding does not need to be sealed, and a special waterproof winding wire is adopted, so that the wet stator is waterproof and water-proof, and the insulation safety problem caused by poor sealing and water leakage does not exist.
The wet stator 3 is connected with different power supply phase sequences to drive the rotor 4 to rotate forward and backward.
Specifically, the working process of the submersible pump is as follows: after the windings of the wet stator 3 are electrified, the windings generate a magnetic field to drive the rotor 4 to do cutting magnetic induction line movement, and as the rotor 4 and the impeller are connected into a whole, the rotor 4 rotates to drive the impeller to rotate, so that water flow is sucked from the water inlet body 1, and is discharged along the water outlet body 2 after being rotationally pressurized by the impeller. When the electric pump needs to run forward and backward, the water flow reversing function can be realized only by switching the two-phase sequence of any three-phase power supply in the control room through the control cabinet, and the electric pump does not need to be disassembled, lifted out of the pump pit and turned around to be installed in the running position, so that the use of manpower and material resources is greatly saved, and the popularization value is very high.
The two ends of the rotating shaft respectively extend through the bearing cavity of the water inlet body 1 and the bearing cavity of the water outlet body 2. Specifically, the rotating shaft is connected with the hub by a key, when the rotor 4 rotates, the driving shaft and the inner rings of the bearings at the two ends of the shaft rotate, and the water inlet body 1, the water outlet body 2 and the outer rings of the bearings in the water inlet body and the water outlet body do not rotate.
The bearing in the bearing cavity of the water inlet body 1 and the bearing in the bearing cavity of the water outlet body 2 are sealed in the water of the environment; specifically, the inner surface of the bearing cavity of the water inlet body 1 and the outer ring of the bearing, the inner surface of the bearing cavity of the water outlet body 2 and the outer ring of the bearing all adopt static sealing structures, and the middle parts of the inner rings of the bearings in the bearing cavities of the water inlet body 1 and the water outlet body 2 and the rotating shaft all adopt dynamic sealing structures.
The application process of the utility model is as follows:
when the submersible pump is used, the assembled submersible pump is placed under water, a power supply is connected, after the winding of the wet stator 3 is electrified, the winding generates a magnetic field to drive the rotor 4 to positively perform cutting magnetic induction line motion, and as the rotor 4 and the impeller 8 are connected into a whole, the rotor 4 positively rotates to drive the impeller 8 to positively rotate, the impeller does work on water flow near the blades 5, and the water flow is continuously conveyed away by converting consumed electric energy into mechanical energy, so that the water flow is sucked from the water inlet body 1, and is discharged along the water outlet body 2 after being rotationally pressurized by the impeller.
When water flow reversely flows, only two-phase sequences of any three-phase power supply are required to be switched in a control room, the winding of the wet stator 3 generates a magnetic field to drive the rotor 4 to reversely do cutting magnetic induction line movement, the rotor 4 reversely rotates to drive the impeller to reversely rotate, the original water inlet edge is converted into the water outlet edge, and the original water outlet edge is converted into the water inlet edge, so that the effect of water flow reversing is realized, and an electric pump is not required to be disassembled, lifted out of a pump pit and turned around again to be installed in an operating position, so that manpower and material resources are greatly saved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (6)
1. The utility model provides a built-in two-way full through-flow submerged motor pump of impeller which characterized in that: including intake body (1), play water body (2), wet stator (3) and take rotor (4) of straight blade, the axial both ends of wet stator (3) frame pass through bolted connection respectively intake body (1) with the one end of play water body (2), intake body (1) with be provided with the bearing chamber in play water body (2), the bearing intracavity has the pivot through bearing swing joint, the outer circumference of pivot is connected with impeller (8), intake flange terminal surface of intake body (1) with evenly seted up round through-hole on the play water flange terminal surface of play water body (2) respectively, rotor core with the outer lane welding of impeller (8) is integrated into one piece structure, clamping ring (6) are installed at rotor core's both ends, and conducting bar (7) pass clamping ring (6) with rotor core is blocked up and is welded on clamping ring (6).
2. The impeller-built-in bidirectional all-through-flow submersible pump of claim 1, wherein: the blade (5) is of a straight blade structure.
3. The impeller-built-in bidirectional all-through-flow submersible pump of claim 1, wherein: the wet stator (3) adopts a water-resistant winding coil, and the wet stator (3) is matched with the rotor (4).
4. A bi-directional full-through-flow submersible pump with built-in impeller as recited in claim 3, wherein: the wet stator (3) is connected with different power supply phase sequences to drive the rotor (4) to rotate forward and backward.
5. The impeller-built-in bidirectional all-through-flow submersible pump of claim 1, wherein: the two ends of the rotating shaft respectively extend through the bearing cavity of the water inlet body (1) and the bearing cavity of the water outlet body (2).
6. The impeller-built-in bi-directional full-through-flow submersible pump of claim 4, wherein: the bearing in the bearing cavity of the water inlet body (1) and the bearing in the bearing cavity of the water outlet body (2) are sealed in the water of the environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322169516.6U CN220470246U (en) | 2023-08-14 | 2023-08-14 | Impeller built-in bidirectional full-through-flow submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322169516.6U CN220470246U (en) | 2023-08-14 | 2023-08-14 | Impeller built-in bidirectional full-through-flow submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220470246U true CN220470246U (en) | 2024-02-09 |
Family
ID=89805753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322169516.6U Active CN220470246U (en) | 2023-08-14 | 2023-08-14 | Impeller built-in bidirectional full-through-flow submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220470246U (en) |
-
2023
- 2023-08-14 CN CN202322169516.6U patent/CN220470246U/en active Active
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