CN211819965U

CN211819965U - High-efficient heat dissipation submerged motor pump unit

Info

Publication number: CN211819965U
Application number: CN202020396762.9U
Authority: CN
Inventors: 张伟进; 宋飞; 胡薇; 王磊; 朱鹏飞; 汪梁涛
Original assignee: Hefei Hengda Jianghai Pump Co Ltd
Current assignee: Hefei Hengda Jianghai Pump Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-10-30
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a high-efficient heat dissipation submerged motor pump unit, including guide vane body, impeller shell, suction chamber and motor frame, the one end of motor frame is provided with the upper end cover, one side center department that the upper end cover is close to the motor frame is connected with the one end of major axis through the upper bearing, the utility model discloses a set up inside heat dissipation pipe and directly make the working water flow constantly pass through the motor inner chamber, the effectual radiating effect that has improved; by arranging the internal heat dissipation circular tube, the risk of possible damage in the transportation, installation and use processes is effectively reduced; by changing the arrangement position of the original heat dissipation circular pipe, the disorder of the heat dissipation circular pipe is effectively avoided, the flow state is more stable, and the efficiency of the water pump is improved; through the lower end cover adopting the double-flange structure, the heat dissipation area of the motor is effectively increased, the efficiency of the motor is improved, working water flow is promoted to pass through the outer wall of the lower bearing, and the heat dissipation effect of the bearing is improved.

Description

High-efficient heat dissipation submerged motor pump unit

Technical Field

The utility model relates to a water conservancy trade submerged motor pump technical field, concretely relates to high-efficient heat dissipation submerged motor pump unit.

Background

The submersible electric pump is a device which drives a water pump impeller to rotate through a motor so as to stress and lift liquid, and is more and more widely applied to the fields of water conservancy drainage and irrigation, municipal water supply and drainage, urban running water, regional water transfer, ecological management and the like; the radiating key part of submerged motor pump is the submerged motor, and domestic submerged motor is mostly dry-type motor at present, and the heat dissipation is mainly realized through the heat transfer of work rivers with the motor frame, and efficiency is not high, especially low pressure miniwatt motor. Some high-voltage motor set up the cooling tube through the frame outside and enlarge heat radiating area and improve the radiating effect, but efficiency improvement is not obvious, and the work rivers produce the turbulent influence submerged motor pump efficiency easily at this position, damages easily in motor transportation, installation, use moreover and leads to the motor can't use under water.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a high-efficiency heat dissipation submersible electric pump unit, which is characterized in that a heat dissipation circular pipe is uniformly arranged in an inner cavity of a submersible electric pump, and the heat of the inner cavity of the submersible electric pump is directly taken away by working water flow in the heat dissipation circular pipe, so that the motor efficiency is effectively improved; through changing the arrangement position of the original heat dissipation circular pipe, the disorder of the heat dissipation circular pipe part is effectively avoided, the flow state is more stable, and the efficiency of the water pump is improved.

The purpose of the utility model can be realized by the following technical scheme:

a high-efficiency heat-dissipation submersible electric pump unit comprises a guide vane body, an impeller shell, a water suction chamber and a motor base, wherein an upper end cover is arranged at one end of the motor base, the center of one side, close to the motor base, of the upper end cover is connected with one end of a long shaft through an upper bearing, and the other end of the long shaft extends out of the lower end cover, extends into an oil chamber and is correspondingly connected with the impeller positioned in the water suction chamber;

the lower end cover is installed at the other end of the motor base, a mesh enclosure is tightly rolled outside the lower end cover, an oil chamber is arranged at the other end of the lower end cover, an impeller shell is arranged at the other end of the oil chamber, an impeller is installed inside the impeller shell, a water suction chamber is arranged outside the oil chamber, and a guide vane body is arranged between the water suction chamber and the oil chamber;

the utility model discloses a motor frame, including motor frame, lower end cover, sealed pad, motor frame, lower end cover, sealed pad and draw-in groove, the inside evenly installed heat dissipation pipe of motor frame, the both ends face of heat dissipation pipe all is provided with sealed the pad, the draw-in groove has all been seted up on lower extreme cover, the upper end cover, sealed pad and draw-in groove adaptation, the externally mounted of sealed pad has the clamp plate, sealed pad is wear-resisting material.

As a further aspect of the present invention: and a junction box is arranged at one end, away from the motor base, of the upper end cover, and a cable is installed at one end of the junction box.

As a further aspect of the present invention: a centrifugal fan is fixedly mounted at one end, close to the upper end cover, outside the long shaft, a rotor is arranged at one side, far away from the upper end cover, of the centrifugal fan, and the rotor is fixedly mounted on the long shaft; the motor comprises a motor base, a stator is welded and fixed in the motor base and matched with a rotor, the stator is rotatably connected with the rotor, the stator is connected with an external power supply through a submersible motor to generate an induction magnetic field to enable the rotor to be stressed, and a long shaft connected with the rotor is driven to rotate

As a further aspect of the present invention: and a lifting lug is arranged outside the motor base.

As a further aspect of the present invention: the inside of lower end cover is provided with the lower bearing, pass through the lower bearing between major axis and the lower end cover and be connected.

The utility model has the advantages that: 1. the utility model discloses a set up inside heat dissipation pipe and directly make work rivers constantly through motor inner chamber, the effectual radiating effect that has improved.

2. The utility model discloses a set up inside heat dissipation pipe, the effectual risk that has reduced probably impaired in transportation, installation and the use.

3. The utility model discloses a change the position of arranging of original heat dissipation pipe, the effectual disorder of having avoided heat dissipation pipe position, the flow state is more steady, has improved water pump efficiency.

4. The utility model discloses an adopt the lower end cover of two flange structures, effectively increased motor heat radiating area, improved motor efficiency to make work rivers through bearing outer wall down, improved the bearing radiating effect.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the internal structure of the heat dissipation structure of the submersible electric pump of the present invention;

fig. 2 is an enlarged schematic view of the region a in fig. 1.

In the figure: 1. a guide blade body; 2. an impeller; 3. an impeller housing; 4. a water suction chamber; 5. a long axis; 6. a lower bearing; 7. an upper bearing; 8. a motor base; 9. a lower end cover; 10. an upper end cover; 11. a rotor; 12. a stator; 13. lifting lugs; 14. a junction box; 15. a cable; 16. an oil chamber; 17. a mesh enclosure; 18. pressing a plate; 19. a gasket; 20. a circular heat dissipation pipe; 21. a centrifugal fan.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention relates to a high-efficiency heat dissipation submersible electric pump unit, which includes a vane guide body 1, an impeller 2, an impeller housing 3, a water suction chamber 4 and a motor base 8, wherein an upper end cover 10 is disposed at one end of the motor base 8, the center of one side of the upper end cover 10, which is close to the motor base 8, is connected to one end of a long shaft 5 through an upper bearing 7, and the other end of the long shaft 5 extends out of a lower end cover 9, and extends into an oil chamber 16 and is correspondingly connected to the impeller 2 in the water suction chamber 4;

the lower end cover 9 is mounted at the other end of the motor base 8 through a flange, a mesh enclosure 17 is tightly rolled outside the lower end cover 9, an oil chamber 16 is mounted at the other end of the lower end cover 9 through a flange, an impeller shell 3 is arranged at the other end of the oil chamber 16, an impeller 2 is mounted inside the impeller shell 3, a water suction chamber 4 is arranged outside the oil chamber 16, and a guide vane body 1 is arranged between the water suction chamber 4 and the oil chamber 16;

the inside evenly installed of motor frame 8 dispels the heat pipe 20, the both ends face of heat dissipation pipe 20 all is provided with sealed 19 of filling up, the draw-in groove has all been seted up on lower extreme cover 9, the upper end cover 10, sealed 19 and draw-in groove adaptations of filling up, the externally mounted of sealed 19 of filling up has clamp plate 18, sealed 19 of filling up is wear-resistant material, compresses tightly closely with sealed 19 of filling up to heat dissipation pipe 20.

And a junction box 14 is arranged at one end of the upper end cover 10 far away from the motor base 8, and a cable 15 is arranged at one end of the junction box 14.

A centrifugal fan 21 is fixedly mounted at one end, close to the upper end cover 10, outside the long shaft 5, a rotor 11 is arranged at one side, far away from the upper end cover 10, of the centrifugal fan 21, and the rotor 11 is fixedly mounted on the long shaft 5; the inside welded fastening of motor frame 8 has stator 12, stator 12 and rotor 11 adaptation, stator 12 rotates with rotor 11 to be connected, stator 12 connects external power source through the dive motor and produces induction magnetic field and make rotor 11 atress, drives 5 major axes rotations of being connected with rotor 11.

And a lifting lug 13 is arranged outside the motor base 8.

The lower end cover 9 is internally provided with a lower bearing 6, and the long shaft 5 is connected with the lower end cover 9 through the lower bearing 6.

The working principle is as follows: when the submersible electric pump is in use and operates, working water flows sequentially pass through the water suction chamber 4, the impeller 2 and the guide vane body 1, and a part of water flow from the guide vane body 1 moves towards the direction of the cable 15 along the outside of the motor base 8, so that the heat dissipation of the motor is realized; the other part passes through the mesh enclosure 17 and then passes through the inner cavity of the motor along the circular radiating pipe 20, and the centrifugal fan 21 in the inner cavity of the submersible motor rotates along with the long shaft 5, so that the circulation motion of high-temperature gas in the motor is promoted, the high-temperature gas exchanges heat with normal-temperature working water flow in the circular radiating pipe 20, and the effective heat radiation of the motor is realized; and a part of the heat sink moves along the inner cavity of the lower end cover and is in contact with the outer wall of the lower bearing, so that the lower bearing is cooled and radiated.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. A high-efficiency heat dissipation submersible electric pump unit comprises a guide vane body (1), an impeller (2), an impeller shell (3), a water suction chamber (4) and a motor base (8), and is characterized in that one end of the motor base (8) is provided with an upper end cover (10), the center of one side, close to the motor base (8), of the upper end cover (10) is connected with one end of a long shaft (5) through an upper bearing (7), and the other end of the long shaft (5) extends out of a lower end cover (9) and extends into an oil chamber (16) to be connected with the impeller (2);

the lower end cover (9) is installed at the other end of the motor base (8), a mesh enclosure (17) is tightly rolled outside the lower end cover (9), an oil chamber (16) is arranged at the other end of the lower end cover (9), an impeller shell (3) is arranged at the other end of the oil chamber (16), an impeller (2) is installed inside the impeller shell (3), a water suction chamber (4) is arranged outside the oil chamber (16), and a guide vane body (1) is arranged between the water suction chamber (4) and the oil chamber (16);

the inside of motor frame (8) evenly installs heat dissipation pipe (20), the both ends face of heat dissipation pipe (20) all is provided with sealed pad (19), the draw-in groove has all been seted up on lower extreme cover (9), upper end cover (10), sealed pad (19) and draw-in groove adaptation, the externally mounted of sealed pad (19) has clamp plate (18).

2. An efficient heat dissipation submersible electric pump unit as claimed in claim 1, characterized in that the end of the upper end cover (10) far away from the motor base (8) is provided with a junction box (14), and one end of the junction box (14) is provided with a cable (15).

3. The high-efficiency heat dissipation submersible electric pump unit according to claim 1, characterized in that a centrifugal fan (21) is fixedly installed at one end of the long shaft (5) close to the upper end cover (10), a rotor (11) is arranged at one side of the centrifugal fan (21) far away from the upper end cover (10), and the rotor (11) is fixedly installed on the long shaft (5); the motor is characterized in that a stator (12) is welded and fixed inside the motor base (8), the stator (12) is matched with the rotor (11), and the stator (12) is rotatably connected with the rotor (11).

4. An efficient heat dissipation submersible electric pump unit according to claim 1, characterized in that the motor base (8) is externally provided with lifting lugs (13).

5. The high-efficiency heat dissipation submersible electric pump unit according to claim 1, characterized in that the lower end cover (9) is internally provided with a lower bearing (6), and the long shaft (5) is connected with the lower end cover (9) through the lower bearing (6).