CN214887776U

CN214887776U - High-lift submersible electric pump

Info

Publication number: CN214887776U
Application number: CN202120695034.2U
Authority: CN
Inventors: 文永吉; 柴建院; 李斌
Original assignee: Shanxi Jieyi Electric Pump Manufacturing Co ltd
Current assignee: Shanxi Jieyi Electric Pump Manufacturing Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-11-26
Anticipated expiration: 2031-04-06

Abstract

The utility model discloses a high-lift submersible electric pump, which comprises a connecting seat, a rotating shaft and a pump shell, wherein the pump shell comprises a water inlet section, a water outlet section, a tail cover and a plurality of middle sections, the tail cover, the water outlet section, the plurality of middle sections and the water inlet section are distributed from top to bottom, the connecting seat is connected with the water inlet section, a water inlet hole is arranged on the water inlet section, a water outlet hole is arranged on the tail cover, a bearing seat is fixed on the connecting seat, a lower sliding bearing is arranged on the bearing seat, a bearing outer sleeve of the lower sliding bearing is fixed on the bearing seat, the rotating shaft is connected with the bearing inner sleeve of the lower sliding bearing and enters the pump shell, a plurality of power units are arranged on the rotating shaft, the power unit includes impeller and stator, and the stator is located the impeller top, intakes and has the power unit in the section, all has the power unit in every middle section, goes out to have the power unit in the water section, and this structure can improve the lift of submarine electric pump.

Description

High-lift submersible electric pump

Technical Field

The utility model relates to an electric pump technical field, concretely relates to high-lift submerged motor pump.

Background

The submersible electric pump is a water pump in which a pump body impeller and a motor for driving the impeller are submerged, the submersible electric pump for the deep well supplies power to the motor through a cable extending into the well, and a transmission long shaft is omitted, so that the submersible electric pump is compact in structure, light in weight, convenient to install, use and transfer, low in lift, limited in use environment, high in lift of a multi-stage pump, and complex in structure installation on the ground.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a high-lift submerged motor pump to improve the lift of submerged motor pump.

The utility model provides a high-lift submerged motor pump, includes hookup seat, pivot and pump case, the pump case includes into water section, play water section, tail-hood and a plurality of middle section, tail-hood, play water section, a plurality of middle sections and the section of intaking down distributes from the top, hookup seat is connected with the section of intaking, and it has the inlet opening to open in the section of intaking, and it has the apopore to open on the tail-hood, is fixed with the bearing frame on the hookup seat, be provided with lower sliding bearing on the bearing frame, lower sliding bearing's bearing housing is fixed on the bearing frame, the pivot is connected with lower sliding bearing's bearing endotheca, and in the pivot got into the pump case, be provided with a plurality of power pack in the pivot, power pack includes impeller and stator, and the stator is located the impeller top, has power pack in the section of intaking, all has power pack in every middle section, has power pack in the play water section.

Preferably, the rotating shaft is connected with a lower thrust disc, and the lower thrust disc is positioned between the bearing seat and the water inlet section.

Preferably, a positioning sleeve is arranged on the rotating shaft, the bottom end of the positioning sleeve is in contact with the top end of the lower thrust disc, and the top end of the positioning sleeve is in contact with the bottom end of the lowest impeller.

Preferably, still include upper sliding bearing, upper sliding bearing is located the tailcap, upper sliding bearing's bearing shell and tailcap fixed connection, and the pivot is connected with upper sliding bearing's bearing endotheca.

Preferably, the water outlet device further comprises an upper thrust disc, the upper thrust disc is arranged on the rotating shaft, and the upper thrust disc is located between the upper sliding bearing and the water outlet section.

Preferably, the number of the middle sections is four.

Preferably, the tail cover, the water outlet section, the plurality of middle sections and the water inlet section are tensioned by pull rods.

Preferably, the tail cover, the water outlet section, the plurality of middle sections and the water inlet section are tensioned by two pull rods, and the two pull rods are symmetrically distributed along the axis of the rotating shaft.

The beneficial effects of the utility model are embodied in: through setting up the section of intaking among this technical scheme, go out the water section, tail-hood and a plurality of middle sections, intake the section, every middle section all installs power pack with play water section, power pack includes impeller and stator, the pivot is connected with lower sliding bearing's bearing endotheca, lower sliding bearing fixes on the bearing frame, bearing 5 fixes on the hookup seat, the hookup seat is connected with the section of intaking, realize the fixed of pivot, the pivot is rotated and is driven power pack and rotate, when specifically using, submersible motor's output shaft is connected with the pivot, liquid is got into by the section of intaking, pass through a plurality of power packs in proper order, wherein the impeller in the power pack provides the energy for liquid, the stator is collected the liquid that the impeller was thrown out, so through the stack of a plurality of power packs, make liquid have stronger power after going out the water section and discharging, thereby realize higher lift.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a front sectional view of the present invention.

In the attached drawing, 1-a connecting seat, 2-a rotating shaft, 3-an outer bearing sleeve, 4-an inner bearing sleeve, 5-a lower thrust disc, 6-a water inlet section, 7-an impeller, 8-a middle section, 9-a guide vane, 10-a pull rod, 11-a water outlet section, 12-an upper sliding bearing, 13-an upper thrust disc, 14-a tail cover, 15-a lower bearing seat and 16-a positioning sleeve.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Examples

The embodiment provides a high-lift submersible electric pump, which comprises a connecting seat 1, a rotating shaft 2 and a pump shell, wherein the pump shell comprises a water inlet section 6, a water outlet section 11, a tail cover 14 and a plurality of middle sections 8, the tail cover 14, the water outlet section 11, the plurality of middle sections 8 and the water inlet section 6 are distributed from top to bottom, the connecting seat 1 is connected with the water inlet section 6, a water inlet hole is formed in the water inlet section 6, a water outlet hole is formed in the tail cover 14, a bearing seat 15 is fixed on the connecting seat 1, a lower sliding bearing is arranged on the bearing seat 15, a bearing outer sleeve 3 of the lower sliding bearing is fixed on the bearing seat 15, the rotating shaft 2 is connected with a bearing inner sleeve 4 of the lower sliding bearing, the rotating shaft 2 enters the pump shell, a plurality of power units are arranged on the rotating shaft 2, each power unit comprises an impeller 7 and a guide vane 9, the guide vane 9 is positioned above the impeller 7, a power unit is arranged in the water inlet section 6, and each middle section 8 is provided with a power unit, the water outlet section 11 is internally provided with a power unit.

The traditional submersible electric pump has low lift, the use environment is limited, the traditional multistage electric pump is complex to install and inconvenient to use, in the embodiment, the water inlet section 6, the water outlet section 11, the tail cover 14 and the plurality of middle sections 8 are arranged, the power units are arranged in the water inlet section 6, each middle section 8 and the water outlet section 11 and comprise impellers 7 and guide vanes 9, the rotating shaft 2 is connected with the bearing inner sleeve 4 of the lower sliding bearing, the lower sliding bearing is fixed on the bearing seat 15, the bearing seat 15 is fixed on the connecting seat 1, the connecting seat 1 is connected with the water inlet section 6, the fixing of the rotating shaft 2 is realized, the rotating shaft 2 rotates to drive the power units to rotate, when the submersible electric pump is used specifically, the output shaft of the submersible electric motor is connected with the rotating shaft 2, liquid enters from the water inlet section 6 and sequentially passes through the plurality of power units, wherein the impellers 7 in the power units provide energy for the liquid, and the guide vanes 9 collect the liquid thrown out by the impellers 7, so through the stack of a plurality of power pack for liquid has stronger power after 11 discharges of play water section, thereby realizes higher lift, and can be according to the quantity that sets up of middle section 8, carries out the regulation of submerged motor pump lift.

The flow range of the submersible pump designed in the embodiment is 10-500 m3/h, and the flow range of the traditional submersible pump and the flow range of the multi-stage pump are covered.

In the embodiment, the pump head of the submersible electric pump is 1250 m.

During installation, the submersible pump can be vertically, obliquely and horizontally installed and used, only the submersible pump is submerged by a water source, and the complex operation task of ground installation of the multistage pump is completely cancelled.

The submersible electric pump in the embodiment has a compact structure, small axial size and small overall occupied space, and is installed by connecting the multistage impellers in series and in a segmented manner, so that the axial installation size is greatly shortened (the maximum axial size of the electric pump is not more than 3 meters), and the installation and use cost is greatly reduced.

High-efficiency and energy-saving: the impeller is designed by adopting a special water conservancy model, the structure of the submersible pump has no mechanical friction, the operation is safe and reliable, the efficiency of the pump and the unit is improved, and the energy-saving effect is obvious.

The use condition has no special requirements, and the power supply requires a three-phase alternating current power supply with the rated frequency of 50Hz and the rated voltage of 380 plus or minus 5 percent V or 660 plus or minus 5 percent V at the motor end as the traditional submersible pump and the multi-stage pump.

The high-lift submersible electric pump has the characteristics of wide performance range, compact structure, small volume, light weight, convenience in installation, safety and reliability in use, capability of remote control and the like, is convenient and simple to install, use and maintain, does not need to build a pump room, can save capital construction investment cost, and has better economic performance.

In this embodiment, the rotating shaft 2 is connected with a lower thrust disc 5, and the lower thrust disc 5 is located between the bearing seat 15 and the water inlet section 6. The lower thrust disc 5 and the bearing seat 15 are arranged to form a lower thrust disc 5 assembly, so that axial force can be balanced.

In this embodiment, the rotating shaft 2 is provided with a positioning sleeve 16, the bottom end of the positioning sleeve 16 is in contact with the top end of the lower thrust plate 5, and the top end of the positioning sleeve 16 is in contact with the bottom end of the lowest impeller 7. The positioning sleeve 16 is arranged to realize the positioning of the lowest impeller 7, so that the installation is convenient.

The embodiment further comprises an upper sliding bearing 12, wherein the upper sliding bearing 12 is located in the tail cover 14, a bearing outer sleeve of the upper sliding bearing 12 is fixedly connected with the tail cover 14, and the rotating shaft 2 is connected with a bearing inner sleeve of the upper sliding bearing 12.

The water outlet device also comprises an upper thrust disc 13, wherein the upper thrust disc 13 is arranged on the rotating shaft 2, and the upper thrust disc 13 is positioned between the upper sliding bearing 12 and the water outlet section 11.

In this embodiment, the upper sliding bearing 12 and the upper thrust disc 13 are provided to further balance the axial force of the rotating shaft 2, so that the rotating shaft 2 is more stable in the operation process.

In this embodiment, four middle segments 8 are provided.

In this embodiment, the tail cap 14, the water outlet section 11, the plurality of middle sections 8 and the water inlet section 6 are tightened by the pull rod 10.

In this embodiment, the tail cover 14, the water outlet section 11, the plurality of middle sections 8 and the water inlet section 6 are tensioned by two pull rods 10, and the two pull rods 10 are symmetrically distributed along the axis of the rotating shaft 2.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The high-lift submersible electric pump is characterized by comprising a connecting seat (1), a rotating shaft (2) and a pump shell, wherein the pump shell comprises a water inlet section (6), a water outlet section (11), a tail cover (14) and a plurality of middle sections (8), the tail cover (14), the water outlet section (11), the middle sections (8) and the water inlet section (6) are distributed from top to bottom, the connecting seat (1) is connected with the water inlet section (6), a water inlet hole is formed in the water inlet section (6), a water outlet hole is formed in the tail cover (14), a bearing seat (15) is fixed on the connecting seat (1), a lower sliding bearing is arranged on the bearing seat (15), a bearing outer sleeve (3) of the lower sliding bearing is fixed on the bearing seat (15), the rotating shaft (2) is connected with a bearing inner sleeve (4) of the lower sliding bearing, the rotating shaft (2) enters the pump shell, a plurality of power units are arranged on the rotating shaft (2), the power unit includes impeller (7) and stator (9), and stator (9) are located impeller (7) top, intake and have the power unit in section (6), all have the power unit in every middle section (8), go out to have the power unit in water section (11).

2. A high-lift submersible electric pump according to claim 1, characterized in that a lower thrust disc (5) is connected to the shaft (2), the lower thrust disc (5) being located between the bearing block (15) and the water intake section (6).

3. A high-lift submersible electric pump according to claim 2, characterized in that the rotating shaft (2) is provided with a positioning sleeve (16), the bottom end of the positioning sleeve (16) is in contact with the top end of the lower thrust disc (5), and the top end of the positioning sleeve (16) is in contact with the bottom end of the lowest impeller (7).

4. The high-lift submersible electric pump according to claim 1, characterized by further comprising an upper sliding bearing (12), wherein the upper sliding bearing (12) is located inside the tail cover (14), a bearing outer sleeve of the upper sliding bearing (12) is fixedly connected with the tail cover (14), and the rotating shaft (2) is connected with a bearing inner sleeve of the upper sliding bearing (12).

5. A high-lift submersible electric pump according to claim 1, characterized in that it further comprises an upper thrust disc (13), said upper thrust disc (13) being arranged on the shaft (2), the upper thrust disc (13) being located between the upper sliding bearing (12) and the water outlet section (11).

6. A high-lift submersible electric pump according to claim 1, characterized in that said intermediate sections (8) are provided in four.

7. A high-lift submersible electric pump according to claim 1, characterized in that the tail cap (14), the outlet section (11), the plurality of intermediate sections (8) and the inlet section (6) are tensioned with a tie rod (10).

8. A high-lift submersible electric pump according to claim 7, characterized in that the tail cover (14), the outlet section (11), the plurality of intermediate sections (8) and the inlet section (6) are tensioned with two tie rods (10), the two tie rods (10) being symmetrically distributed along the axis of the shaft (2).