CN213016812U

CN213016812U - Submerged pump for conveying medium containing solid particles

Info

Publication number: CN213016812U
Application number: CN202021542087.2U
Authority: CN
Inventors: 王陆尧; 孙建君
Original assignee: Dalian Kehuan Pump Co ltd
Current assignee: Dalian Kehuan Pump Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-20
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a submerged pump for carrying contains solid particle medium, including gland, lower bearing part and upper bearing part, the upper surface of upper bearing part is equipped with the mounting panel, the output of motor is equipped with the one end that runs through the diaphragm coupling of motor support, upper bearing part lower part is equipped with the intermediate pipe, the lower part of intermediate pipe is equipped with lower bearing part, the bottom surface of intermediate pipe is equipped with angular contact bearing, the lower part threaded connection of lower bearing part has the seal box, lower bearing part bottom surface is equipped with cylindrical roller bearing, the oil inlet of notes oil pipe runs through the mounting panel, the seal box lower part is equipped with the casing, the casing is inside to be equipped with the auxiliary impeller, the axle of submerged pump adopts antifriction bearing to support, does not need the flush fluid, solves and does not have clean flush fluid problem to just can add lubricating grease for the bearing from bottom plate upper portion, the pump does not need to be stopped and disassembled, and the operation is simple.

Description

Submerged pump for conveying medium containing solid particles

Technical Field

The utility model relates to a submerged pump technical field, the concrete field is a submerged pump for carrying contain solid particle medium.

Background

The submerged pump is a vertical pump which immerses the flow passage components such as an impeller, a pump body and the like in a medium, has small floor area, does not need to be pumped when being started, and is widely applied to the fields of power plants, metallurgy, petrochemical industry, sewage treatment and the like.

At present, a common submerged pump is mostly in a structural form with a sliding bearing support, and when a meson containing solid particles is conveyed, clean liquid is often introduced from the outside to be used as flushing liquid to provide cooling lubrication for the sliding bearing. However, under some working conditions, no clean liquid is available on site, so that the sliding bearing cannot be well washed, and the sliding bearing is quickly abraded, so that the pump cannot normally work; the meson contains a large amount of solid particles, so that the abrasion of the pump body, the impeller and the pump cover is greatly accelerated, the service life of the pump is shortened, the parts such as the pump body, the pump cover and the like are frequently replaced, and the cost is increased, so that the submerged pump for conveying the medium containing the solid particles is particularly important.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a submerged pump for carrying contain solid particle medium to solve the present general submerged pump that proposes in the above-mentioned background art and adopt the structural style that has the slide bearing support more, when carrying the meson that contains solid particle, often introduce clear liquid from the external world and make the flush fluid provide cooling lubrication for the slide bearing. However, under some working conditions, no clean liquid is available on site, so that the sliding bearing cannot be well washed, and the sliding bearing is quickly abraded, so that the pump cannot normally work; the meson contains a large amount of solid particles, so that the abrasion of the pump body, the impeller and the pump cover is greatly accelerated, the service life of the pump is shortened, parts such as the pump body, the pump cover and the like are frequently replaced, and the cost is increased.

In order to achieve the above object, the utility model provides a following technical scheme: a submerged pump for conveying media containing solid particles comprises a gland, a lower bearing component and an upper bearing component, wherein a front protection plate is symmetrically arranged on the upper surface of the gland, one end of a sheath is symmetrically arranged on the outer side of the front protection plate, a liquid outlet pipe is arranged on one side of the sheath, a rear protection plate is arranged at the other end of the sheath, a mounting plate is arranged on the upper surface of the upper bearing component, a motor support is in threaded connection with the upper surface of the mounting plate, a motor is arranged on the upper portion of the motor support, one end of a diaphragm coupling penetrating through the motor support is arranged at the output end of the motor, the other end of the diaphragm coupling is fixedly connected with the interior of the upper bearing component, a middle pipe is arranged on the lower portion of the upper bearing component, a deep groove ball bearing is arranged on the surface of the bottom of the upper bearing component, the lower bearing component is arranged on the lower portion, the lower part of lower bearing part is equipped with the seal box, bearing part bottom surface is equipped with cylindrical roller bearing down, cylindrical roller bearing and seal box internal connection, cylindrical roller bearing, deep groove ball bearing and angular contact bearing's one end all is equipped with the oiling pipe, the oil inlet of oiling pipe runs through the mounting panel, the inside mechanical seal that is equipped with of seal box, the seal box lower part is equipped with the casing, the inside auxiliary impeller that is equipped with of casing, auxiliary impeller's lower part is equipped with the impeller and is located inside the sheath.

Preferably, the upper surface of the gland is provided with a sealing gasket.

Preferably, the sheath is of a half-arc type.

Preferably, the deep groove ball bearing is connected with the inside of the intermediate pipe, the angular contact bearing is connected with the inside of the lower bearing component,

preferably, the seal box both sides are equipped with the notes liquid pipe that runs through the seal box, annotate the liquid pipe and be connected with mechanical seal, the play liquid end of annotating the liquid pipe runs through the mounting panel.

Preferably, the oil filling pipe contains 3 pipes inside, and the 3 pipes are respectively connected with the cylindrical roller bearing, the deep groove ball bearing and the angular contact bearing.

Compared with the prior art, the beneficial effects of the utility model are that: a submerged pump for transporting media containing solid particles has the following advantages:

the utility model discloses, the axle of submerged pump adopts antifriction bearing to support, does not need the flush fluid, solves and does not have clean flush fluid problem to just can add lubricating grease for the bearing from bottom plate upper portion, do not need to park and tear down the pump, easy operation; the pressure-bearing part consists of a front guard plate, a sheath and a rear guard plate, when one part is worn, the whole part does not need to be replaced, and the high-hardness wear-resistant material is adopted, so that the service life of the pump is greatly prolonged, and the cost is saved for customers; the auxiliary impeller structure can effectively reduce solid particles from entering the sealing cavity, and prolong the service life of the seal. One side of sheath is equipped with the drain pipe, forms unique central mode play liquid mode, has saved the raw and other materials consumption of device in the course of working, has reduced the processing cost, has reduced device space size simultaneously, has reduced the requirement of device to user's installation space.

Drawings

Fig. 1 is a schematic structural view in front view and section view of the present invention;

fig. 2 is a partial sectional structural schematic view of the present invention;

FIG. 3 is a schematic structural view of the injection tube of the present invention.

In the figure: 1-gland, 2-lower bearing part, 3-upper bearing part, 4-front guard plate, 5-sheath, 6-rear guard plate, 7-mounting plate, 8-motor support, 9-diaphragm coupling, 10-middle tube, 11-deep groove ball bearing, 12-angular contact bearing, 13-sealing box, 14-cylindrical roller bearing, 15-oil injection tube, 16-mechanical seal, 17-shell, 18-auxiliary impeller, 19-impeller, 20-sealing pad, 21-liquid injection tube and 22-liquid outlet tube.

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

Referring to fig. 1-3, the present invention provides a technical solution: a submerged pump for conveying media containing solid particles comprises a gland 1, a lower bearing component 2 and an upper bearing component 3, wherein a front protection plate 4 is symmetrically arranged on the upper surface of the gland 1, one end of a sheath 5 is arranged on the outer side of the front protection plate 4, a liquid outlet pipe 22 is arranged on one side of the sheath 5, a rear protection plate 6 is arranged at the other end of the sheath 5, a mounting plate 7 is arranged on the upper surface of the upper bearing component 3, a motor support 8 is arranged on the upper surface of the mounting plate 7, a motor is arranged on the upper portion of the motor support 8, one end of a diaphragm coupling 9 penetrating through the motor support 8 is arranged at the output end of the motor, the other end of the diaphragm coupling 9 is fixedly connected with the inside of the upper bearing component 3, a middle pipe 10 is arranged on the lower portion of the upper bearing component 3, a deep groove 11 is arranged on the bottom surface of the upper bearing component 3, and the lower portion of, the bottom surface of the middle pipe 10 is provided with an angular contact bearing 12, the lower part of the lower bearing component 2 is in threaded connection with a seal box 13, the bottom surface of the lower bearing component 2 is provided with a cylindrical roller bearing 14, the cylindrical roller bearing 14 is connected with the inside of the seal box 13, one end of each of the cylindrical roller bearing 14, the deep groove ball bearing 11 and the angular contact bearing 12 is provided with an oil injection pipe 15, an oil inlet of the oil injection pipe 15 penetrates through the mounting plate 7, a mechanical seal 16 is arranged inside the seal box 13, the lower part of the seal box 13 is provided with a shell 17, an auxiliary impeller 18 is arranged inside the shell 17, the lower part of the auxiliary impeller 18 is provided with an impeller 19 and is positioned inside the sheath 5, a shaft of the submerged pump is supported by a rolling bearing without flushing liquid, the problem of no cleaning is solved, lubricating grease can be added into the bearing from the, the operation is simple; the pressure-bearing part consists of a front guard plate 4, a sheath 5 and a rear guard plate 6, when one part is worn, the whole part is not required to be replaced, and a high-hardness wear-resistant material is adopted, so that the service life of the pump is greatly prolonged, and the cost is saved for customers.

Specifically, the upper surface of the gland 1 is provided with a gasket 20 to increase the sealing performance of the device.

In particular, the sheath 5 is of the semi-arc type.

In particular, the deep groove ball bearing 11 is connected internally to the intermediate pipe 10, and the angular contact bearing 12 is connected internally to the lower bearing part 2.

Particularly, seal box 13 both sides are equipped with the notes liquid pipe 21 that runs through seal box 13, it is connected with mechanical seal 16 to annotate liquid pipe 21, annotate the play liquid end of liquid pipe 21 and run through mounting panel 7, conveniently add the buffer solution, the buffer solution circulation provides cooling, lubrication for mechanical seal 16, and the pressure, the temperature of buffer solution can be monitored to sealed monitored control system to know mechanical seal 16's running state.

Specifically, the filler pipe 15 contains 3 pipes therein, and is connected to the cylindrical roller bearing 14, the deep groove ball bearing 11, and the angular contact bearing 12, respectively.

The working principle is as follows: when the submerged pump works, firstly, a spacer fluid is injected into the mechanical seal 16 through the liquid injection pipe 21 and discharged from the other end, the whole device is monitored, the sealing state is ensured, then the motor is started to drive the diaphragm coupling 9 to rotate, the diaphragm coupling 9 drives the upper bearing part 3 to rotate, the middle pipe 10 and the lower bearing part 3 are driven to rotate, meanwhile, under the action of the impeller 19, a medium is sucked from the bottom of the device, enters the shell 17 and flows through the streamline passage, the friction loss is reduced, the medium pressurized by the impeller 19 is thrown out to the outer edge of the impeller 19 under the action of the rotating centrifugal force of the impeller 19, and finally, the medium is discharged through the liquid outlet pipe 22 on one side of the sheath 5, when the medium contains solid particles, the auxiliary impeller 18 prevents the solid particles from entering the seal cavity 13, and the seal box 13 seals.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and can include, for example, fixed or removable connections or integral, mechanical or electrical connections or direct or indirect connections via an intermediate medium, communication between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A submerged pump for conveying a medium containing solid particles, comprising a gland (1), a lower bearing part (2) and an upper bearing part (3), characterized in that: the upper surface symmetry of gland (1) is equipped with apron plate (4), the outside symmetry of apron plate (4) is equipped with the one end of sheath (5), one side of sheath (5) is equipped with drain pipe (22), the other end of sheath (5) is equipped with backplate (6), the upper surface of upper bearing part (3) is equipped with mounting panel (7), the upper surface threaded connection of mounting panel (7) has motor support (8), the upper surface of motor support (8) is equipped with the motor, the output of motor is equipped with the one end of running through motor support (8)'s diaphragm coupling (9), the other end and the inside fixed connection of upper bearing part (3) of diaphragm coupling (9), upper bearing part (3) lower part is equipped with intermediate tube (10), the bottom surface of upper bearing part (3) is equipped with deep groove ball bearing (11), the lower part of the middle pipe (10) is provided with a lower bearing part (2), the bottom surface of the middle pipe (10) is provided with an angular contact bearing (12), a sealing box (13) is arranged at the lower part of the lower bearing part (2), a cylindrical roller bearing (14) is arranged on the bottom surface of the lower bearing part (2), the cylindrical roller bearing (14) is connected with the inside of the seal box (13), one end of the cylindrical roller bearing (14), one end of the deep groove ball bearing (11) and one end of the angular contact bearing (12) are provided with oil injection pipes (15), an oil inlet of the oil filling pipe (15) penetrates through the mounting plate (7), a mechanical seal (16) is arranged inside the seal box (13), a shell (17) is arranged at the lower part of the seal box (13), an auxiliary impeller (18) is arranged in the shell (17), the lower part of the auxiliary impeller (18) is provided with an impeller (19) and is positioned in the sheath (5).

2. A submerged pump for transporting a medium containing solid particles according to claim 1, characterized in that: and a sealing gasket (20) is arranged on the upper surface of the gland (1).

3. A submerged pump for transporting a medium containing solid particles according to claim 1, characterized in that: the sheath (5) is of a semi-arc shape.

4. A submerged pump for transporting a medium containing solid particles according to claim 1, characterized in that: the deep groove ball bearing (11) is connected with the inner part of the middle pipe (10), and the angular contact bearing (12) is connected with the inner part of the lower bearing component (2).

5. A submerged pump for transporting a medium containing solid particles according to claim 1, characterized in that: and liquid injection pipes (21) penetrating through the sealing box (13) are arranged on two sides of the sealing box (13), the liquid injection pipes (21) are connected with the mechanical seal (16), and the liquid outlet ends of the liquid injection pipes (21) penetrate through the mounting plate (7).

6. A submerged pump for transporting a medium containing solid particles according to claim 1, characterized in that: the oil filling pipe (15) is internally provided with 3 pipes which are respectively connected with the cylindrical roller bearing (14), the deep groove ball bearing (11) and the angular contact bearing (12).