CN217029440U

CN217029440U - Deep-well pump for brine mining

Info

Publication number: CN217029440U
Application number: CN202220847665.6U
Authority: CN
Inventors: 王丽飞; 王丽雷
Original assignee: Tibet Salt Pump R & D Co ltd
Current assignee: Tibet Salt Pump R & D Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-22
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a deep-well pump for brine mining, which comprises a submersible motor and a pump body, wherein an impeller is arranged in the pump body, the pump body is fixedly connected with a shell of the submersible motor, the impeller is coaxially connected with a rotating shaft of the submersible motor, and flushing pipelines are arranged on the shell of the submersible motor and a water inlet of the pump body; the rotating shaft and the shell of the submersible motor are sealed through a movable sealing structure, and high-pressure fresh water flows into the shell of the submersible motor from the flushing pipeline and then flows out from the movable sealing structure. The deep well pump solves the problems of impeller locking and motor burnout in the brine pumping operation of a deep well. The deep well pump solves the problems of impeller locking and motor burnout in the brine pumping operation of a deep well. Thoroughly get rid of the fragile problem, also can stable work under the brine environment, life improves more than 700 days, can reduce use cost by a wide margin.

Description

Deep-well pump for brine mining

Technical Field

The utility model relates to the technical field of deep-well pumps, in particular to a deep-well pump for brine mining.

Background

At present, the traditional deep well pump operation is used for domestic salt lake brine exploitation. The impeller of traditional deep-well pump can crystallize the card often and die in brine mining use, and the dive motor makes brine can permeate the dive motor and cause further damage because reasons such as shrinkage, sealed wearing and tearing rise with heat, and the rotary part of wearing and tearing dive motor causes the dive motor to surpass the electric current operation and finally makes the motor thoroughly burn out. At present, the working life of a deep-well pump is unstable, generally ranges from 1 day to 200 days, the average life is about 90 days, the cost of the deep-well pump is high, time and labor are wasted in the installation process, the installation and maintenance cost is high, the production cost is high when an enterprise mines brine, and the cost is not reduced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a deep-well pump for brine mining, which aims to solve the technical problems in the background art.

A deep-well pump for brine mining comprises a submersible motor and a pump body, wherein an impeller is installed in the pump body, the pump body is fixedly connected with a shell of the submersible motor, the impeller is coaxially connected with a rotating shaft of the submersible motor, and flushing pipelines are arranged on the shell of the submersible motor and a water inlet of the pump body;

the rotating shaft and the shell of the submersible motor are sealed through a movable sealing structure, and high-pressure fresh water flows into the shell of the submersible motor from the flushing pipeline and then flows out of the movable sealing structure.

Further, the movable sealing structure comprises a sealing static ring and a sealing dynamic ring which are coaxially arranged; the static sealing ring and the dynamic sealing ring are in sealing and movable contact; the sealing static ring is sealed and fixedly arranged on the inner wall of the shell of the submersible motor; the sealing movable ring is far away from one end of the sealing static ring is sealed and fixedly installed on a rotating shaft of the submersible motor, the sealing movable ring is close to one end of the sealing static ring and movably connected with the rotating shaft of the submersible motor, and the sealing movable ring can be compressed along the axial direction.

Further, the static sealing ring comprises a first rubber sealing ring and a first metal friction ring arranged on one end face of the first rubber sealing ring; the first metal friction ring and the first rubber sealing ring are concentrically arranged, and the first metal friction ring is in sealing and movable contact with the end face of the sealing movable ring.

Furthermore, the sealing movable ring comprises a second rubber sealing ring and a spring sleeved on the second rubber sealing ring, two ends of the second rubber sealing ring are provided with limiting rings, and the spring is arranged between the two limiting rings; a second metal friction ring is concentrically arranged on the movable end face of the second rubber sealing ring;

the end face of the second metal friction ring is attached to the end face of the first metal friction ring.

Furthermore, be provided with first bulge loop on submersible motor's the shells inner wall, sealed quiet ring's one end is sealed, fixed mounting in on the first bulge loop.

Further, be provided with the second bulge loop on submersible motor's the shells inner wall, sealed rotating ring is kept away from the sealed one end of quiet ring is sealed, fixed mounting be in on the second bulge loop.

Furthermore, the flushing pipeline is connected with the shell of the submersible motor through a connector in a threaded manner.

Furthermore, the flushing pipeline extends along the axial direction of the deep well pump and is arranged on the surface of the deep well pump.

The utility model has the beneficial effects that:

the impeller is washed by adding the washing pipeline at the water inlet of the pump body, the brine concentration entering the pump body is reduced, and the impeller is prevented from being blocked by crystals. High-pressure fresh water flows into behind the casing of dive motor from washing the pipeline, follows activity seal structure department flows out, forms fresh water circulation in the casing of dive motor, and in the unable infiltration casing of brine, crystallization and the effect of cooling down in preventing the motor.

The deep well pump solves the problems of impeller jamming and motor burnout in the brine pumping operation of a deep well. The problem of easy damage is thoroughly eliminated, the stable operation can be realized in a brine environment, the service life is prolonged to more than 700 days, and the use cost can be greatly reduced.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings used in the detailed description or the prior art description 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 schematic structural diagram of a deep well pump for brine mining according to the present invention;

FIG. 2 is a schematic view of the installation of the movable sealing structure of the deep well pump for brine extraction according to the present invention;

FIG. 3 is a schematic three-dimensional structure of a movable sealing structure provided by the present invention;

FIG. 4 is a schematic structural view of a sealing stationary ring provided by the present invention;

fig. 5 is a schematic structural diagram of the sealing moving ring provided by the present invention.

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.

As shown in fig. 1-5, the deep-well pump for brine mining provided by the utility model comprises a submersible motor and a pump body 1, wherein an impeller is installed in the pump body 1, the pump body 1 is fixedly connected with a casing 3 of the submersible motor, the impeller is coaxially connected with a rotating shaft 4 of the submersible motor, and flushing pipes 5 are respectively arranged on the casing 3 of the submersible motor and a water inlet of the pump body 1. The rotating shaft 4 and the shell 3 of the submersible motor are sealed by a movable sealing structure 6, and high-pressure fresh water flows into the shell 3 of the submersible motor from the flushing pipeline 5 and then flows out from the movable sealing structure 6. The flushing pipeline 5 is connected with the casing 3 of the submersible motor through a connector thread. The flushing pipe 5 extends axially along the deep-well pump and is arranged on the surface of the deep-well pump. During installation, the water inlet end of the flushing pipe 5 is connected with a fresh water source on the ground through a water inlet pipe, and the water flow flowing out of the flushing pipe 5 has high water pressure due to the fall between the ground and the deep-well pump. When the submersible electric motor works, fresh water is injected into the flushing pipeline 5, the submersible electric motor is started to work, and water needs to be continuously injected into the flushing pipeline 5 in the working process of the submersible electric motor. In order to further improve the pressure of the water flow flowing out of the flushing pipeline 5, a water inlet pipe can be externally connected with a pressurizing device such as a water pump.

Specifically, the movable sealing structure 6 comprises a static sealing ring 7 and a movable sealing ring 8 which are coaxially arranged, and the static sealing ring 7 and the movable sealing ring 8 are in sealing and movable contact. The sealing static ring 7 is sealed and fixedly arranged on the inner wall of the shell 3 of the submersible motor. One end of the sealing movable ring 8, which is far away from the sealing static ring 7, is sealed and fixedly installed on the rotating shaft 4 of the submersible motor, one end of the sealing movable ring 8, which is close to the sealing static ring 7, is movably connected with the rotating shaft 4 of the submersible motor, and the sealing movable ring 8 can be compressed along the axial direction.

In this embodiment, the stationary seal ring 7 includes a first rubber seal ring 9 and a first metal friction ring 10 disposed on an end face of one end of the first rubber seal ring 9. The first metallic friction ring 10 is arranged concentrically with the first rubber sealing ring 9.

The sealing movable ring 8 comprises a second rubber sealing ring 11 and a spring 12 sleeved on the second rubber sealing ring 11, two ends of the second rubber sealing ring 11 are provided with limiting rings 13, and the spring 12 is arranged between the two limiting rings 13; a second metal friction ring 14 is concentrically arranged on the movable end face of the second rubber sealing ring 11. The end face of the second metallic friction ring 14 abuts against the end face of the first metallic friction ring 10. The end face of the second metal friction ring 14 and the end face of the first metal friction ring 10 are smooth faces, so that the end face of the second metal friction ring 14 is in contact with and attached to the end face of the first metal friction ring 10 to achieve a sealing effect, abrasion can be reduced, and the service life is prolonged.

In this embodiment, a first convex ring 15 is arranged on the inner wall of the casing 3 of the submersible motor, and one end of the sealing stationary ring 7 is sealed and fixedly mounted on the first convex ring 15. A second convex ring 17 is arranged on the inner wall of the shell 3 of the submersible motor, and one end of the sealing movable ring 8, which is far away from the sealing static ring 7, is sealed and fixedly arranged on the second convex ring 17.

The working principle is as follows:

the impeller is washed by adding a washing pipeline at the water inlet of the pump body, so that the brine concentration entering the pump body is reduced, and the impeller is prevented from being blocked by crystals.

High-pressure fresh water flows into behind the casing of dive motor from washing the pipeline, and water pressure in the casing is higher than the outer water pressure of casing, and sealed rotating ring 8 is compressed by the axial, and sealed rotating ring 8 breaks away from the contact with sealed quiet ring 7, and the fresh water activity seal structure department in the casing flows out, forms fresh water circulation in the casing of dive motor, and in the unable infiltration casing of brine, prevent the interior crystallization of motor and play the cooling effect.

When the submersible motor stops working, the flushing pipeline stops water injection, at the moment, the sealing movable ring 8 resets under the action of the spring 12 and is in contact with the sealing static ring 7 again, the sealing effect is achieved, and brine outside the shell cannot permeate into the shell.

The deep well pump solves the problems of impeller locking and motor burnout in the brine pumping operation of a deep well. Thoroughly get rid of the fragile problem, also can stable work under the brine environment, life improves more than 700 days, can reduce use cost by a wide margin.

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; while the utility model has been described in detail and with reference to the foregoing embodiments, it will 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 depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.

Claims

1. The utility model provides a deep-well pump for brine mining, includes submersible motor and the pump body (1), install the impeller in the pump body (1), the pump body (1) with submersible motor's casing (3) fixed connection, the impeller with submersible motor's pivot (4) coaxial coupling, its characterized in that: flushing pipelines (5) are arranged on the shell (3) of the submersible motor and the water inlet of the pump body (1);

the submersible motor is characterized in that a rotating shaft (4) and a shell (3) of the submersible motor are sealed through a movable sealing structure (6), and high-pressure fresh water flows into the shell (3) of the submersible motor from a flushing pipeline (5) and then flows out of the movable sealing structure (6).

2. The deep-well pump for brine extraction of claim 1, wherein: the movable sealing structure (6) comprises a sealing static ring (7) and a sealing dynamic ring (8) which are coaxially arranged; the static sealing ring (7) is in sealing and movable contact with the dynamic sealing ring (8); the sealing static ring (7) is hermetically and fixedly arranged on the inner wall of the shell (3) of the submersible motor; keep away from sealed rotating ring (8) the one end of sealed quiet ring (7) is sealed, fixed mounting is in on submersible motor's pivot (4), sealed rotating ring (8) are close to the one end of sealed quiet ring (7) with submersible motor's pivot (4) swing joint, axial compression can be followed in sealed rotating ring (8).

3. The deep-well pump for brine extraction of claim 2, wherein: the static sealing ring (7) comprises a first rubber sealing ring (9) and a first metal friction ring (10) arranged on one end face of the first rubber sealing ring (9); the first metal friction ring (10) and the first rubber sealing ring (9) are arranged concentrically, and the first metal friction ring (10) is in sealing and movable contact with the end face of the sealing movable ring (8).

4. The deep-well pump for brine extraction of claim 3, wherein: the sealing movable ring (8) comprises a second rubber sealing ring (11) and a spring (12) sleeved on the second rubber sealing ring (11), two ends of the second rubber sealing ring (11) are provided with limiting rings (13), and the spring (12) is arranged between the two limiting rings (13); a second metal friction ring (14) is concentrically arranged on the movable end surface of the second rubber sealing ring (11);

the end face of the second metal friction ring (14) is attached to the end face of the first metal friction ring (10).

5. The deep-well pump for brine extraction of claim 2, wherein: be provided with first bulge loop (15) on submersible motor's casing (3) inner wall, sealed one end of quiet ring (7) is sealed, fixed mounting be in on first bulge loop (15).

6. The deep-well pump for brine extraction of claim 2, wherein: be provided with second bulge loop (17) on submersible motor's casing (3) inner wall, sealed rotating ring (8) are kept away from the sealed one end of quiet ring (7) is sealed, fixed mounting be in on second bulge loop (17).

7. The deep-well pump for brine mining of claim 1, wherein: the flushing pipeline (5) is connected with the casing (3) of the submersible motor through a connector thread.

8. The deep-well pump for brine extraction of claim 1, wherein: the flushing pipeline (5) extends along the axial direction of the deep-well pump and is arranged on the surface of the deep-well pump.