CN212899004U - Motor upper-mounted submersible pump - Google Patents
Motor upper-mounted submersible pump Download PDFInfo
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- CN212899004U CN212899004U CN202021879924.0U CN202021879924U CN212899004U CN 212899004 U CN212899004 U CN 212899004U CN 202021879924 U CN202021879924 U CN 202021879924U CN 212899004 U CN212899004 U CN 212899004U
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- drive control
- barrel
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Abstract
The utility model discloses a motor-mounted submersible pump, which comprises a pump cylinder, wherein a drive control assembly is arranged in the pump cylinder and is arranged at the upper part of an inner cavity of the pump cylinder for controlling the operation of a motor assembly; the motor assembly is arranged in a motor shell below the drive control assembly, and a drainage channel is arranged between the outer wall of the motor shell and the inner wall of the pump barrel; and the pump assembly is arranged below the motor assembly. The utility model discloses, motor element sets up in the motor casing, sets up the drainage channel between motor casing and the pump barrel, when the pump package with water suction pump barrel and in the upward transportation, can utilize the water that flows in the pump barrel to cool off motor element and drive control subassembly, reduce the temperature of motor element and drive control subassembly, prevent that stator and rotor in the motor element are overheated to lead to motor performance to descend or even become invalid; the device can adapt to higher medium temperature, does not have the requirement of the lowest flow speed of the outer side of the traditional well motor, and adapts to more working conditions.
Description
Technical Field
The utility model relates to a high-speed deep-well pump technical field, concretely relates to motor facial make-up immersible pump.
Background
Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, mainly used to transfer liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal, etc., and also to transfer liquid, gas mixture and liquid containing suspended solid matter.
With the development of society and science and technology, shielded motors are increasingly applied to submersible pumps. The shielded motor is a motor without mechanical seal, and a conveyed medium can directly pass through the stator and the rotor to lubricate and cool a bearing system and take away heat of the stator and the rotor. The invention provides a shielding permanent magnet high-speed submersible pump motor, which comprises a motor shell, an upper end cover, a lower end cover, a rotor shaft, a rotor and a stator, wherein the stator is fixed on the inner wall of the motor shell, a shielding sleeve is arranged between the stator and the rotor, shielding seats are arranged above and below the stator, the shielding sleeve and the shielding seats are fixedly connected through cold welding and are combined with the inner wall of the motor shell to form a shielding cavity, and the stator is positioned in the shielding cavity.
However, the shielding permanent magnet high-speed submersible pump motor still has the following disadvantages when applied to a submersible pump:
the rotor drives the water flow to rotate and radiate through the radiating ribs on the shielding sleeve, the guidance of the threads on the rotation of the water flow is weaker, the radiating effect of the rotor is poor, the magnetic steel of the permanent magnet rotor is poor in heat resistance, and the magnetic steel can be demagnetized instantly at high temperature, so that the performance of the motor is reduced or even loses efficacy.
In view of this, it is urgently needed to improve the structure of the existing shielding submersible pump so as to improve the heat dissipation performance of the motor rotor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the stator and the poor problem of rotor heat dispersion of current shielding formula immersible pump motor.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:
the utility model provides a motor upper assembling type immersible pump, includes the pump barrel, be equipped with in the pump barrel:
the drive control assembly is arranged at the upper part of the inner cavity of the pump cylinder and is used for controlling the operation of the motor assembly;
the motor assembly is arranged in a motor shell below the drive control assembly, and a drainage channel is arranged between the outer wall of the motor shell and the inner wall of the pump barrel;
a pump assembly disposed below the motor assembly for delivering water entering the pump assembly into the drain channel.
In this scheme, the drive control subassembly includes the casing and sets up drive control module and radiator in the casing.
In this aspect, the pump assembly includes:
the upper end and the lower end of the pump shaft are rotatably arranged in the pump cylinder through an upper bearing seat and a lower bearing seat; the upper end of the pump shaft is connected with the motor assembly through a coupler;
the multistage impeller assembly comprises an impeller and guide vanes, wherein the impeller and the guide vanes are arranged on the pump shaft in a floating mode, and the axial force of a first-stage impeller of the multistage impeller assembly is transmitted to the pump shaft through an axial force bearing structure arranged at the bottom end of the pump shaft and is borne by a last-stage guide vane of the multistage impeller assembly in a floating mode;
and the water inlet joint is arranged at the lower end of the pump barrel, and a water inlet hole is formed in the side wall of the water inlet joint.
In this aspect, the pump barrel includes:
a pump housing disposed on an outer side of the pump assembly;
and the motor outer barrel is arranged on the outer side surfaces of the motor shell and the drive control assembly, and a drainage channel is formed between the inner wall of the motor outer barrel and the outer wall of the shell of the motor shell and the drive control assembly.
In this scheme, every level the lower extreme of impeller sets up the portion of intaking, the movable radial choma is established to the cover in the portion of intaking, movable radial choma includes choma body and choma seat, the diameter of choma groove is greater than the external diameter of choma body, the choma body can the radial activity in the choma inslot.
In the scheme, the motor assembly is a shielding motor.
In the scheme, the top end of the pump cylinder is provided with a water outlet communicated with the water drainage channel, and a one-way valve is arranged in the water outlet.
Compared with the prior art, the utility model provides a motor facial make-up immersible pump, including the pump barrel, and from the top down set gradually the drive control subassembly in the pump barrel, motor element and pump assembly, motor element sets up in the motor casing, set up drainage channel between the outer wall of motor casing and the inner wall of pump barrel, in sucking water into the pump barrel and the transportation that makes progress when the pump assembly, can utilize the water that flows in the pump barrel to cool off motor element, reduce motor element's temperature, prevent that stator and rotor from overheated leading to motor performance to descend to lose efficacy even among the motor element, can adapt to higher medium temperature, do not have the minimum velocity of flow requirement in the motor outside for traditional well, adapt to more operating modes.
Drawings
FIG. 1 is a sectional view of the submersible pump with the motor mounted thereon;
FIG. 2 is a perspective view of the pump barrel of the present invention;
FIG. 3 is a structural exploded view of a pump assembly according to the present invention;
fig. 4 is a cross-sectional view of a pump assembly according to the present invention.
Wherein, the corresponding relationship between each reference number and the component name in fig. 1 to fig. 4 is as follows:
the pump comprises a pump barrel 1, a drive control assembly 2, a motor assembly 3, a pump assembly 4, a pump shell 11, a motor outer barrel 12, a drive control assembly outer barrel 13, a water discharge channel 5, a water discharge port 6, a check valve 7, a shell 21, a drive control module 22, a radiator 23, a pump shaft 41, a multi-stage impeller assembly 42, a water inlet joint 43, a water outlet joint 44, an upper bearing seat 45, a lower bearing seat 46, a coupler 47, an impeller 421, a guide vane 422, a first-stage impeller 423, a last-stage guide vane 424, a water inlet 425, a ring body 426 and a ring seat 427.
Detailed Description
The utility model provides a motor upper assembling type immersible pump, motor element set up in the motor casing, set up drainage channel between the outer wall of motor casing and the inner wall of pump barrel, inhale the pump barrel and make progress the transportation when the pump assembly, can utilize the interior water that flows of pump barrel to cool off motor element, reduce motor element's temperature, prevent that stator and rotor are overheated to lead to motor performance to descend or even become invalid in the motor element. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 and fig. 2, the utility model provides a motor top-loading submersible pump, including pump barrel 1, be equipped with drive control subassembly 2, motor element 3 and pump unit 4 in the pump barrel 1.
The pump barrel 1 is designed in a segmented mode and comprises a pump shell 11, a motor outer barrel 12 and a drive control assembly outer barrel 13, the pump shell 11 is arranged on the outer side face of a pump assembly 4, the motor outer barrel 12 is arranged on the outer side face of a motor assembly 3, the drive control assembly outer barrel 13 is arranged on the outer side face of a drive control assembly 2, and the motor outer barrel 12 and the drive control assembly outer barrel 13 form a drainage channel 5 with the outer side faces of the motor assembly 3 and the drive control assembly 2. The upper end of the pump barrel 1 is provided with a water outlet 6 communicated with the water drainage channel 5, and the water outlet 6 is internally provided with a one-way valve 7.
The driving control assembly 2 comprises a housing 21, and a driving control module 22 and a heat sink 23 which are arranged in the housing 21, wherein the driving control module 22 is communicated with the motor assembly 2 and is used for controlling the motor assembly 2 to operate.
As shown in fig. 3 and 4, the pump assembly 4 includes a pump shaft 41, a multistage impeller assembly 42, a water inlet joint 43 and a water outlet joint 44, wherein the upper end and the lower end of the pump shaft 41 are respectively rotatably disposed in the pump housing 11 through an upper bearing seat 45 and a lower bearing seat 46, and the upper end of the pump shaft 11 is connected with the motor assembly 3 through a coupling 47. The water inlet joint 43 is arranged at the lower end of the pump shell 11, and a water inlet hole is arranged on the side wall of the water inlet joint 43. A water outlet joint 44 is provided at the upper end of the pump housing 11 for discharging water entering the pump assembly 4 into the drain passage 5.
The multistage impeller assembly 42 comprises an impeller 421 and a guide vane 422, the impeller 421 and the guide vane 422 are arranged on the pump shaft 41 in a floating mode, wherein the first-stage impeller 423 is conducted to the pump shaft 41 through an axial force bearing device, then conducts the axial force to the last-stage guide vane 424 and is carried by the last-stage guide vane 424 in a floating mode. The lower extreme of every level impeller 421 sets up into water portion 425, and the cover is equipped with movable radial choma on the portion 425 of intaking, including choma body 426 and choma seat 427, the top surface of choma seat 427 sets up the mouth annular groove, and the diameter of choma groove is greater than the external diameter of choma body 426, and choma body 426 can be in the radial activity of choma inslot.
The working process of the utility model is as follows:
the driving control assembly 33 drives the motor assembly 2 to start moving, water enters the pump housing 1 through the water inlet joint 43 and enters the impeller 421 through the water inlet part 425, the rotor drives the motor shaft to rotate, the motor shaft drives the impeller 421 to rotate along with the pump shaft 41 to accelerate the water in the impeller 421, the water in the impeller 421 flows out and converts kinetic energy into pressure energy through the guide vanes 422, and thus, the water with a certain pressure is obtained along with the one-stage pressurization of the multistage impeller assembly 42. The water is pressurized by the multistage impeller assembly 42, enters the drain passage 5 through the water outlet joint 44, and is discharged through the drain port 6.
During the operation of the multistage impeller assembly 42, an axial force exists due to the imbalance of pressures in front of and behind the impeller 421, the first-stage impeller 423 is transmitted to the pump shaft 41 through the axial force bearing device, and then the axial force is transmitted to the last-stage guide vanes 424 and is supported by the last-stage guide vanes 424 in a floating manner; the axial forces of the other stages of the impeller 42 are floatingly carried by the stages of the vanes 422. The mouth ring body 426 is pressed against the mouth ring seat 427 by the interstage pressure to seal the water inlet 425. When the impeller 421 is eccentric or sliding, the position of the mouth ring body 426 in the mouth ring groove is adjusted to adjust the sealing relationship between the mouth ring body 426 and the water inlet portion 425, so that the mouth ring body 426 and the water inlet portion 425 can always keep a sealing state.
In the process that water is discharged from the water discharge channel 5 through the water discharge port 6, the water passes through the outer side face of the motor component 3, so that the motor component 3 can be cooled, and the heat dissipation efficiency of the motor component 3 is improved. When water flow is discharged from the water outlet 6, the one-way valve 7 enables the water flow flowing out to only flow out in one direction, thereby avoiding water flow backflow and improving the pump efficiency.
Compared with the prior art, the utility model provides a motor top-loading type immersible pump, motor element sets up in the motor casing, set up drainage channel between the outer wall of motor casing and the inner wall of pump barrel, in the pump subassembly with water suction pump barrel and the transportation that makes progress, can utilize the water that flows in the pump barrel to cool off motor element, reduce motor element's temperature, prevent that stator and rotor are overheated among the motor element to lead to motor performance to descend and become invalid even, can adapt to higher medium temperature, there is flowing liquid in the motor outside all the time, good cooling effect has, do not have the minimum velocity of flow requirement in the motor outside for traditional well, adapt to more operating modes.
In this scheme, the motor adopts the facial make-up structure, and the axial force that the impeller rotation produced is floated by the stator of each level and last stage stator and is born the weight of, has reduced the bearing of motor shaft to the axial force, prevents that the motor shaft from bearing the weight of the axial force and taking place wearing and tearing, has prolonged the life of motor.
In this scheme, the pump barrel adopts the design of segmentation formula, including pump case, motor urceolus and drive control subassembly urceolus, in daily maintenance and the maintenance to the immersible pump, conveniently carries out the dismouting to corresponding subassembly, avoids the produced inconvenient condition of maintenance of integral pump barrel.
In this scheme, the upper end of pump barrel sets up the outlet with drainage channel intercommunication, sets up the check valve in the outlet, realizes the one-way outflow of discharge water flow, avoids the refluence of discharge water flow, improves the discharge efficiency of immersible pump.
In this scheme, the movable radial choma is established to the cover in the portion of intaking of impeller lower extreme, including choma body and choma seat, the choma groove diameter of choma seat top surface is greater than the external diameter of choma body, and the choma body can be in the radial activity of choma inslot, makes things convenient for choma body according to its position and the form in the choma inslot of eccentric or the sliding adjustment of impeller, makes choma body and the portion of intaking remain encapsulated situation throughout.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (7)
1. The utility model provides a motor upper assembling type immersible pump which characterized in that, includes the pump barrel, be equipped with in the pump barrel:
the drive control assembly is arranged at the upper part of the inner cavity of the pump cylinder and is used for controlling the operation of the motor assembly;
the motor assembly is arranged in a motor shell below the drive control assembly, and a drainage channel is arranged between the outer wall of the motor shell and the inner wall of the pump barrel;
a pump assembly disposed below the motor assembly for delivering water entering the pump assembly into the drain channel.
2. The submersible pump of claim 1, wherein the drive control assembly comprises a housing and a drive control module and a heat sink disposed within the housing.
3. The submersible pump of claim 1, wherein the pump assembly comprises:
the upper end and the lower end of the pump shaft are respectively and rotatably arranged in the pump barrel through an upper bearing seat and a lower bearing seat; the upper end of the pump shaft is connected with the motor assembly through a coupler;
the multistage impeller assembly comprises an impeller and guide vanes, and the impeller and the guide vanes are arranged on the pump shaft in a floating mode, wherein the axial force of a first-stage impeller of the multistage impeller assembly is transmitted to the pump shaft through an axial force bearing device and is borne by a last-stage guide vane of the multistage impeller assembly in a floating mode;
and the water inlet joint is arranged at the lower end of the pump barrel, and a water inlet hole is formed in the side wall of the water inlet joint.
4. The submersible pump of claim 2, wherein the pump cartridge comprises:
a pump housing disposed on an outer side of the pump assembly;
the motor outer barrel and the drive control assembly outer barrel are respectively arranged on the motor shell and the outer side face of the drive control assembly, the drainage channel is formed between the inner wall of the motor outer barrel and the outer wall of the motor shell, and the drainage channel is formed between the drive control assembly outer barrel and the outer wall of the shell.
5. The submersible pump of claim 3, wherein the lower end of each impeller is provided with a water inlet part, the water inlet part is sleeved with a movable radial opening ring, the movable radial opening ring comprises an opening ring body and an opening ring seat, the top surface of the opening ring seat is provided with an opening ring groove, the diameter of the opening ring groove is larger than the outer diameter of the opening ring body, and the opening ring body can move radially in the opening ring groove.
6. The submersible pump of claim 1, wherein the motor assembly is a canned motor.
7. The submersible pump of claim 1, wherein the upper end of the pump barrel is provided with a drain opening in communication with the drain passage, the drain opening having a one-way valve disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021879924.0U CN212899004U (en) | 2020-09-01 | 2020-09-01 | Motor upper-mounted submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021879924.0U CN212899004U (en) | 2020-09-01 | 2020-09-01 | Motor upper-mounted submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212899004U true CN212899004U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021879924.0U Active CN212899004U (en) | 2020-09-01 | 2020-09-01 | Motor upper-mounted submersible pump |
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| Country | Link |
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| CN (1) | CN212899004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754010A (en) * | 2022-04-22 | 2022-07-15 | 三联泵业股份有限公司 | Hard tube lift pump for deep sea mining |
-
2020
- 2020-09-01 CN CN202021879924.0U patent/CN212899004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754010A (en) * | 2022-04-22 | 2022-07-15 | 三联泵业股份有限公司 | Hard tube lift pump for deep sea mining |
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