CN216477892U

CN216477892U - Canned motor pump

Info

Publication number: CN216477892U
Application number: CN202123069835.7U
Authority: CN
Inventors: 李博; 李成辉; 李作义; 陈其辉
Original assignee: Zibo Boshan Kehai Machinery Co ltd
Current assignee: Zibo Boshan Kehai Machinery Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-10
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses an internally sealed canned motor pump, which comprises a pump shell and a sealed casing, wherein a front sealed end cover is fixedly arranged at the periphery of one end of the sealed casing, a pump shell is fixedly arranged at one side of the front sealed end cover, a sealing assembly is fixedly arranged at the middle part of one end of the sealed casing, a sealing bearing is fixedly arranged inside the sealing assembly, a shielding cover is fixedly arranged inside the sealed casing, and a stator winding assembly is fixedly arranged at the joint of the sealed casing and the shielding cover. Simple use and excellent stability.

Description

Canned motor pump

Technical Field

The utility model relates to a canned motor pump technical field specifically is an inside seal canned motor pump.

Background

Canned motor pumps are one type of no-leak pump used to transport corrosive, hazardous, flammable, explosive, and expensive or other specialty liquids. The method is mainly used in the industries of petroleum, chemical engineering, atomic energy and the like. The whole encapsulation of current canned motor pump is not convenient for the maintenance in later stage and is overhauld, and it is serious to wear and tear between the long-time back of using casing and the pump body, appears leaking easily, and life is lower relatively.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inside seal's canned motor pump to solve the current canned motor pump monolithic package that proposes in the above-mentioned background art, the maintenance in later stage of being not convenient for is overhauld, and it is serious to wear and tear between the long-time back casing of using and the pump body, appears leaking easily, life relatively lower problem.

In order to achieve the above object, the utility model provides a following technical scheme: an internal sealing canned motor pump comprises a pump shell and a sealed case, wherein a front canned end cover is fixedly arranged at the periphery of one end of the sealed case, the pump shell is fixedly arranged on one side of the front canned end cover, a sealing component is fixedly arranged in the middle of one end of the sealed case, a sealing bearing is fixedly arranged in the sealing component, a shielding cover is fixedly arranged in the sealed case, a stator winding assembly is fixedly arranged at the joint of the sealed case and the shielding cover, a rotor assembly is fixedly arranged in the shielding cover, a rotor core is arranged on the rotor assembly, a pump cavity is arranged in the pump shell, an impeller assembly positioned in the pump cavity is fixedly arranged at one end of the rotor core, the canned motor pump is packaged by adopting the sealing end cover, the sealing component is additionally arranged at the joint of the pump shell and the sealed case, the sealed bearing of cooperation can promote the holistic sealing performance of canned motor pump promptly, can delay the wearing and tearing of the pump body again, has improved the life of the pump body, and can dismantle fast and assemble, provides convenience for the maintenance and overhaul in canned motor pump later stage.

Preferably, the outside cover of seal assembly and sealed bearing junction is equipped with O shape packing ring, the fixed buffering cushion that is provided with in the inboard of seal assembly and sealed bearing junction can promote the holistic sealing performance of the pump body, more has the practicality.

Preferably, the one end that the pump casing was kept away from to sealed casing is fixed to be provided with the rear seal end cover, one side fixed mounting of rear seal end cover has the wire holder, and it facilitates to maintain for the dismantlement of the pump body, operation convenient to use.

Preferably, the bottom of the sealed casing is fixedly provided with a base, so that stable and reliable support can be provided for the canned motor pump, and the operation is stable.

Preferably, one side of the pump shell is provided with a liquid inlet channel communicated with the inside of the pump cavity, and the top end of the pump shell is provided with a liquid discharge channel communicated with the inside of the pump cavity, so that liquid flow can be conveniently fed and discharged stably and smoothly.

Preferably, a plurality of evenly distributed's blade draw-in grooves are seted up on impeller component's surface, and is a plurality of the equal block in inside of blade draw-in groove is connected with the charge pump blade, and the charge pump blade adopts the mode of block equipment to install, facilitates for the maintenance in later stage.

Compared with the prior art, the beneficial effects of the utility model are that: this canned motor pump adopts the end cover to encapsulate, has increased seal assembly at the junction of pump casing and sealed casing, and the sealed bearing of cooperation can promote canned motor pump holistic sealing performance promptly, can delay the wearing and tearing of the pump body again, has improved the life of the pump body, and can dismantle fast and assemble, for the maintenance and repair in canned motor pump later stage provides convenience, and is simple and convenient to use, and stability is good.

Drawings

FIG. 1 is a front cross-sectional view of the canned motor pump of the present invention;

FIG. 2 is a cross-sectional view of the seal assembly of the present invention;

fig. 3 is a schematic structural diagram of the impeller assembly of the present invention.

In the figure: 1. a pump housing; 2. sealing the housing; 3. a stator winding assembly; 4. a shield case; 5. a rotor assembly; 6. a rotor core; 7. sealing the end cover at the back; 8. a wire holder; 9. a cushion rubber pad; 10. sealing the bearing; 11. a base; 12. a seal assembly; 13. a pump chamber; 14. an impeller assembly; 15. a liquid inlet channel; 16. an O-shaped gasket; 17. a front seal end cap; 18. an electric pump blade; 19. a blade clamping groove; 20. a liquid discharge channel.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-3, the present invention provides an internal sealing canned motor pump, which comprises a pump housing 1 and a sealed housing 2, wherein a front sealed end cover 17 is fixedly disposed on the periphery of one end of the sealed housing 2, the pump housing 1 is fixedly disposed on one side of the front sealed end cover 17, a sealing assembly 12 is fixedly disposed in the middle of one end of the sealed housing 2, a sealed bearing 10 is fixedly disposed in the sealing assembly 12, a shielding cover 4 is fixedly disposed in the sealed housing 2, a stator winding assembly 3 is fixedly disposed at the joint of the sealed housing 2 and the shielding cover 4, a rotor assembly 5 is fixedly disposed in the shielding cover 4, a rotor core 6 is disposed on the rotor assembly 5, a pump cavity 13 is disposed in the pump housing 1, an impeller assembly 14 located in the pump cavity 13 is fixedly disposed at one end of the rotor core 6, a sealing assembly 12 is additionally disposed at the joint of the pump housing 1 and the sealed housing 2, the sealed bearing 10 of cooperation can promote the holistic sealing performance of canned motor pump promptly, can delay the wearing and tearing of the pump body again, has improved the life of the pump body, and can dismantle fast and assemble, provides convenience for the maintenance in canned motor pump later stage, and is simple and convenient to use.

The outside cover of seal assembly 12 and seal bearing 10 junction is equipped with O shape packing ring 16, the inboard of seal assembly 12 and seal bearing 10 junction is fixed and is provided with buffering cushion 9, the fixed back end cover 7 that is provided with of one end that keeps away from pump casing 1 of sealed casing 2, one side fixed mounting of back end cover 7 has wire holder 8, the fixed base 11 that is provided with in bottom of sealed casing 2, seal bearing 10 can reduce the frictional force between rotor core 6 and the pump casing 1, reduce the wear rate of canned motor pump, O shape packing ring 16 then increases the inseparable degree of rotor core 6 and pump casing 1 junction, make the whole sealing performance of the pump body good, and is stable and reliable.

One side of pump case 1 is equipped with the communicating inlet channel 15 inside with pump chamber 13, the top of pump case 1 be equipped with the communicating drainage channel 20 inside of pump chamber 13, a plurality of evenly distributed's blade draw-in groove 19 is seted up on impeller unit 14's surface, the equal block in inside of a plurality of blade draw-in grooves 19 is connected with charge pump blade 18, charge pump blade 18 adopts the mode of block to assemble, simple and convenient to use and installation, for later stage's dismantlement maintenance provides convenience.

When the embodiment of the application is used: the shielding electric pump is stably installed and then is powered on, after the shielding electric pump is powered on, under the action of electromagnetic force, the rotor core 6 can rotate, the impeller assembly 14 is driven to rotate, the impeller assembly 14 can enable the electric pump blades 18 to form a sealed cavity with the pump cavity 13 under the action of centrifugal force in the rotating process, negative pressure is formed in the pump cavity 13, liquid flow enters the pump cavity 13 through the liquid inlet channel 15 at the moment, and is discharged through the liquid discharge channel 20 finally, the shielding electric pump is packaged by adopting a sealing end cover, the sealing assembly 12 is additionally arranged at the joint of the pump shell 1 and the sealing shell 2, the sealing bearing 10 is matched, the overall sealing performance of the shielding pump can be improved, the abrasion of the pump body can be delayed, the service life of the pump body is prolonged, the shielding electric pump can be rapidly disassembled and assembled, convenience is provided for the maintenance and overhaul of the shielding later stage of the electric pump, the use is simple and convenient, and the stability is good.

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. An internally sealed canned motor pump comprising a pump housing (1) and a sealed casing (2), characterized in that: a front sealing end cover (17) is fixedly arranged on the periphery of one end of the sealing machine shell (2), a pump shell (1) is fixedly arranged on one side of the front sealing end cover (17), a sealing component (12) is fixedly arranged in the middle of one end of the sealing machine shell (2), a sealing bearing (10) is fixedly arranged inside the sealing component (12), a shielding cover (4) is fixedly arranged inside the sealing machine shell (2), a stator winding assembly (3) is fixedly arranged at the joint of the sealed machine shell (2) and the shielding cover (4), a rotor assembly (5) is fixedly arranged in the shielding cover (4), a rotor iron core (6) is arranged on the rotor assembly (5), pump chamber (13) have been seted up to the inside of pump casing (1), the one end fixed mounting of rotor core (6) has and is located inside impeller subassembly (14) of pump chamber (13).

2. The internally sealed canned motor pump of claim 1, wherein: the outer side of the joint of the sealing assembly (12) and the sealing bearing (10) is sleeved with an O-shaped gasket (16), and the inner side of the joint of the sealing assembly (12) and the sealing bearing (10) is fixedly provided with a buffer rubber gasket (9).

3. The internally sealed canned motor pump of claim 1, wherein: one end, far away from the pump shell (1), of the sealing machine shell (2) is fixedly provided with a rear sealing end cover (7), and one side of the rear sealing end cover (7) is fixedly provided with a wire holder (8).

4. The internally sealed canned motor pump of claim 1, wherein: and a base (11) is fixedly arranged at the bottom of the sealed casing (2).

5. The internally sealed canned motor pump of claim 1, wherein: one side of the pump shell (1) is provided with a liquid inlet channel (15) communicated with the inside of the pump cavity (13), and the top end of the pump shell (1) is provided with a liquid discharge channel (20) communicated with the inside of the pump cavity (13).

6. The internally sealed canned motor pump of claim 1, wherein: the surface of the impeller component (14) is provided with a plurality of uniformly distributed blade clamping grooves (19), and the insides of the blade clamping grooves (19) are all connected with electric pump blades (18) in a clamping manner.