CN210623113U

CN210623113U - Submersible pump for well

Info

Publication number: CN210623113U
Application number: CN201921292616.5U
Authority: CN
Inventors: 林峭; 林芝; 林书廷
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-26
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a submersible pump for wells, which comprises a pump shell and a pump body, wherein the pump body comprises a shielding motor, an upper impeller set and a lower impeller set, adopts a brand-new structural design, and directly installs the upper impeller set and the lower impeller set on an output shaft of the shielding motor by adopting a waterproof shielding motor as a power source without adopting mechanical seal and a coupler, thereby reducing the unbalance amount of the output shaft of the motor and prolonging the service life of a motor bearing and an impeller; the upper side and the lower side of the shielding motor are provided with the impeller sets, so that the pump lift can be effectively improved, and the upper side and the lower side of an output shaft of the motor are stressed in a balanced manner, so that the stress of a bearing of the motor can be reduced, the abrasion of the bearing is reduced, and the service life of the submersible pump for the well is prolonged; in addition, water flows firstly pass through the lower impeller set, then flow through the water flow channel outside the shielding motor, and then pass through the upper impeller set, the shielding motor is located in flowing water, and the water flows can take away heat of the shielding motor, so that heat dissipation of the motor is facilitated.

Description

Submersible pump for well

Technical Field

The utility model relates to a water intaking drainage machine tool technical field, in particular to immersible pump for well.

Background

The well submersible pump is an important device for pumping water from a deep well, and when the well submersible pump is used, the whole unit is submerged into water to work, so that underground water is pumped to the ground surface. The current submersible pump for the well is mainly characterized in that a motor and a water pump are made into a vertical type through a coupler, so that the diameter is small, and the submersible pump is of a connected straight rod type; a water inlet of the water pump is generally positioned above the coupler, and a motor below the coupler is soaked in static water, so that heat dissipation of the motor is not facilitated; the mechanical seal is required to be arranged at the outlet of the motor shaft at the top of the motor, so that water is prevented from entering the motor, but the motor and the water pump are connected through the coupler, so that the coupler and the mechanical seal are easy to damage due to large unbalance amount; and the water pump is located the one end of motor for the radial stress that the motor bearing received is great, and bearing wearing and tearing are serious.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an at least solve one of the technical problem who exists among the prior art, provide a immersible pump for well, adopt brand-new structural design, novel structure is reasonable, need not to adopt mechanical seal, has reduced the setting of shaft coupling, reduces motor bearing wearing and tearing, improves the life of pump to can improve the pump lift of pump.

The main aspect of the utility model provides a immersible pump for well, including the pump case and the pump body, the pump case is including the water inlet that is located the lower part and the delivery port that is located upper portion, the water inlet with it places the chamber to form the pump body between the delivery port, the pump body includes shielding motor, goes up impeller assembly and lower impeller assembly, shielding motor's output shaft is followed respectively axial region and lower axial region are stretched out to shielding motor's upper portion and lower part, it installs to go up impeller assembly go up the axial region, lower impeller assembly is installed the axial region is down, shielding motor's the installation department that passes through is fixed the inner wall in chamber is placed to the pump body, shielding motor's outer wall with the pump body is placed and is formed the.

The submersible pump for the well at least has the following beneficial effects: the novel structure design is adopted, the waterproof shielding motor is used as a power source, the upper impeller set and the lower impeller set are directly installed on the output shaft of the shielding motor, mechanical seal and a coupler are not needed, the unbalance amount of the output shaft of the motor is reduced, and the service lives of a motor bearing and an impeller are prolonged; the upper side and the lower side of the shielding motor are provided with the impeller sets, so that the pump lift can be effectively improved, and the upper side and the lower side of an output shaft of the motor are stressed in a balanced manner, so that the stress of a bearing of the motor can be reduced, the abrasion of the bearing is reduced, and the service life of the submersible pump for the well is prolonged; in addition, water flow is sucked from the water inlet, firstly passes through the lower impeller set, then passes through the water flow channel outside the shielding motor, then passes through the upper impeller set, and finally flows out of the water outlet, the shielding motor is located in flowing water, and the heat of the shielding motor can be taken away by the water flow, so that the heat dissipation of the motor is facilitated.

According to the utility model discloses in the main aspect a immersible pump for well, go up impeller assembly and lower impeller assembly all include a plurality of set gradually in the epaxial impeller subassembly of shielded electrical machines's output. The pump head of the submersible pump for the well can be effectively improved by adopting the impeller components.

According to the utility model discloses in the main aspect a immersible pump for well, the pump body is placed the range upon range of intracavity portion and is provided with more than two the pump body. Through place the intracavity portion at the pump body and range upon range of a plurality of pump bodies that set up, can further improve the lift of pump.

According to the utility model discloses main aspect a immersible pump for well, the delivery port set up in the up end of pump case or set up in the upper portion lateral wall of pump case.

According to the utility model discloses main aspect a immersible pump for well, the water inlet set up in the lower terminal surface of pump case or set up in the lower part lateral wall of pump case.

According to the utility model discloses main aspect a immersible pump for well, water inlet department is provided with the grid. The grid is arranged, so that large sundries can be blocked outside, and the motor stalling caused by entering the pump body is avoided.

The utility model discloses an on the other hand provides a immersible pump for well, including the pump case and the pump body, the pump case is including the water inlet that is located the lower part and the delivery port that is located upper portion, the water inlet with it places the chamber to form the pump body between the delivery port, the pump body is including shielding motor and last impeller group, shielding motor's output shaft is followed axial region is stretched out on shielding motor's upper portion, it installs to go up impeller group last axial region, shielding motor's the installation department that passes through is fixed the inner wall in chamber is placed to the pump body, shielding motor's outer wall with the pump body is placed and is formed the rivers passageway between.

The utility model discloses a still another aspect provides a immersible pump for well, including the pump case and the pump body, the pump case is including the water inlet that is located the lower part and the delivery port that is located upper portion, the water inlet with it places the chamber to form the pump body between the delivery port, the pump body includes shielding motor and lower impeller group, shielding motor's output shaft is followed the upper portion of shielding motor stretches out down the axial region, lower impeller group installs the axial region down, shielding motor's the installation department that passes through is fixed the inner wall in chamber is placed to the pump body, shielding motor's outer wall with the pump body is placed and is formed the rivers passageway between the inner wall in chamber.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic structural diagram of a submersible pump for a well according to an embodiment of the present invention;

fig. 2 is a sectional view of a pump body of a submersible pump for a well according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a submersible pump for a well according to another embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, an embodiment of the utility model provides a submersible pump for well, including pump case 10 and the pump body 20, pump case 10 is including the water inlet 11 that is located the lower part and the delivery port 12 that is located the upper portion, it places chamber 13 to form the pump body between water inlet 11 and the delivery port 12, pump body 20 includes canned motor 21, go up impeller group 22 and lower impeller group 23, canned motor 21's output shaft stretches out last axial region 211 and lower axial region 212 from canned motor 21's upper portion and lower part respectively, it installs at last axial region 211 to go up impeller group 22, lower impeller group 23 installs axial region 212 down, canned motor 21's the inner wall of placing chamber 13 at the pump body through installation department 213 is fixed, canned motor 21's outer wall and the pump body are placed and are formed rivers passageway 30 between.

In the embodiment, the submersible pump for the well adopts a brand-new structural design, the waterproof shielding motor 21 is used as a power source, the upper impeller set 22 and the lower impeller set 23 are directly installed on the output shaft of the shielding motor 21, mechanical seal and a coupler are not needed, the unbalance amount of the output shaft of the motor is reduced, and the service lives of a motor bearing and an impeller are prolonged; the upper side and the lower side of the shielding motor 21 are provided with the impeller sets, so that the pump lift can be effectively improved, and the upper side and the lower side of an output shaft of the motor are stressed in a balanced manner, so that the stress of a bearing of the motor can be reduced, the abrasion of the bearing is reduced, and the service life of the submersible pump for the well is prolonged; in addition, water flow is sucked from the water inlet 11, firstly passes through the lower impeller set 23, then passes through the water flow channel 30 outside the shielding motor 21, then passes through the upper impeller set 22, and finally flows out from the water outlet 12, the shielding motor 21 is located in flowing water, and the water flow can take away heat of the shielding motor 21, so that heat dissipation of the motor is facilitated.

It is understood that the shield motor 21 in the present embodiment may be any type of waterproof motor as long as the output shaft of the motor can protrude from both sides. The shield motor 21 shown in fig. 2 includes an upper end cover, a lower end cover, a motor housing, a motor stator, and a motor rotor, wherein the motor housing is located between the upper end cover and the lower end cover, the motor stator is located in the motor housing, the motor rotor is located in the motor stator, a sealing ring is arranged on the inner wall of the motor stator, a heat-conducting insulating potting adhesive is arranged between the motor housing and the sealing ring, and the motor stator is wrapped by the heat-conducting insulating potting adhesive. This motor is provided with sealed ring through the inner wall at motor stator for form inclosed space between upper end cover, the lower extreme cover, motor housing and the sealed ring, fill heat conduction insulation casting glue inside this inclosed space, wrap up motor stator, can seal motor stator through upper end cover, the lower extreme cover on the one hand, motor housing and sealed ring, on the other hand can seal motor stator through the parcel of heat conduction insulation casting glue, make this motor can soak and use in aqueous. The canned motor 21 may be replaced by a waterproof motor of other structure.

Referring to fig. 1 and 2, another embodiment of the present invention further provides a submersible pump for a well, wherein each of the upper impeller assembly 22 and the lower impeller assembly 23 includes a plurality of impeller assemblies 200 sequentially disposed on the output shaft of the canned motor 21.

In this embodiment, the use of a plurality of impeller assemblies 200 can effectively increase the head of the submersible pump for a well. It can be understood that the multi-stage impeller has been widely applied to the conventional deep well pump, and the upper impeller set 22 and the lower impeller set 23 in this embodiment can be directly applied to the multi-stage impeller of the conventional deep well pump, so that the detailed structure of the impeller assembly 200 is not described in this embodiment, and those skilled in the art can easily find the structures of the various impeller assemblies for use without creative work.

Referring to fig. 3, another embodiment of the present invention further provides a submersible pump for a well, wherein more than two pump bodies 20 are stacked inside the pump body placing cavity 13.

In the present embodiment, the pump bodies 20 are stacked inside the pump body placement chamber 13, and the pump bodies cooperate with each other, whereby the head of the submersible pump for a well can be further increased.

Referring to fig. 1 and 2, another embodiment of the present invention further provides a submersible pump for a well, wherein the water outlet 12 is provided at an upper end surface of the pump case 10.

It will be appreciated that the outlet 12 may also be provided in an upper side wall of the pump housing 10.

Referring to fig. 1 and 2, another embodiment of the present invention also provides a submersible pump for a well, wherein a water inlet 11 is provided at a lower end surface of a pump case 10.

It will be appreciated that the water inlet 11 may also be provided in the lower side wall of the pump housing 10.

Referring to fig. 1 and 3, another embodiment of the present invention further provides a submersible pump for a well, wherein a grating 111 is disposed at the water inlet 11.

In this embodiment, the grille 111 is disposed to block some large impurities, so as to avoid entering the pump body 20 to cause the motor to be locked.

The utility model discloses a pump case 10 and the pump body 20, pump case 10 is including the water inlet 11 that is located the lower part and the delivery port 12 that is located upper portion, it places chamber 13 to form the pump body between water inlet 11 and the delivery port 12, the pump body 20 includes canned motor 21 and last impeller group 22, canned motor 21's output shaft stretches out upper shaft part 211 from canned motor 21's upper portion, go up impeller group 22 and install at upper shaft part 211, canned motor 21's the inner wall of placing chamber 13 at the pump body is fixed through installation department 213, canned motor 21's outer wall and the pump body are placed and are formed rivers passageway 30 between the inner wall of chamber 13.

The embodiment is a scheme formed by omitting a lower impeller group 23 on the basis of fig. 1, a waterproof shielding motor 21 is adopted as a power source, an upper impeller group 22 is directly installed on an output shaft of the shielding motor 21, mechanical seal and a coupler are not needed, the unbalance amount of the output shaft of the motor is reduced, and the service lives of a motor bearing and an impeller are prolonged; in addition, water flow is sucked from the water inlet 11, flows through the water flow channel 30 outside the shielding motor 21, passes through the upper impeller set 22, and finally flows out of the water outlet 12, the shielding motor 21 is located in flowing water, and the water flow can take away heat of the shielding motor 21, so that heat dissipation of the motor is facilitated.

The utility model discloses a pump case 10 and the pump body 20, pump case 10 is including the water inlet 11 that is located the lower part and the delivery port 12 that is located upper portion, it places chamber 13 to form the pump body between water inlet 11 and the delivery port 12, the pump body 20 is including shielding motor 21 and lower impeller group 23, axial region 212 under the output shaft of shielding motor 21 stretches out from the upper portion of shielding motor 21, lower impeller group 23 is installed at axial region 212 down, the inner wall of placing chamber 13 at the pump body is fixed through installation department 213 of shielding motor 21, form rivers passageway 30 between the inner wall of placing chamber 13 at the pump body to the outer wall of shielding motor 21 and the pump body.

Similarly, the embodiment is a scheme formed by omitting the upper impeller set 22 on the basis of fig. 1, the waterproof shielding motor 21 is adopted as a power source, the lower impeller set 23 is directly installed on the output shaft of the shielding motor 21, mechanical seal and a coupler are not needed, the unbalance amount of the motor output shaft is reduced, and the service lives of a motor bearing and an impeller are prolonged; in addition, water flow is sucked from the water inlet 11, firstly passes through the lower impeller group 23, then flows through the water flow channel 30 outside the shielding motor 21, and finally flows out of the water outlet 12, the shielding motor 21 is located in flowing water, and the water flow can take away heat of the shielding motor 21, so that heat dissipation of the motor is facilitated.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. The utility model provides a immersible pump for well, a serial communication port, includes the pump case and the pump body, the pump case is including the water inlet that is located the lower part and the delivery port that is located upper portion, the water inlet with it places the chamber to form the pump body between the delivery port, the pump body includes shielding motor, goes up impeller group and lower impeller group, the output shaft of shielding motor is followed respectively the upper portion and the lower part of shielding motor stretch out upper shaft part and lower shaft part, it installs to go up impeller group last shaft part, lower impeller group installs lower shaft part, the installation department that passes through of shielding motor is fixed the inner wall in chamber is placed to the pump body, the outer wall of shielding motor with the pump body is placed and is formed the rivers.

2. The submersible pump for wells of claim 1, wherein the upper and lower impeller sets each comprise a plurality of impeller assemblies sequentially disposed on the output shaft of the canned motor.

3. The submersible pump for wells according to claim 1 or 2, wherein more than two pump bodies are stacked inside the pump body placement cavity.

4. The submersible pump according to claim 1 or 2, wherein the water outlet is provided at an upper end face of the pump housing or at an upper side wall of the pump housing.

5. The submersible pump according to claim 1 or 2, wherein the water inlet is provided at a lower end surface of the pump housing or at a lower side wall of the pump housing.

6. A submersible pump for wells according to claim 1 or 2, wherein a grating is provided at the water inlet.

7. The utility model provides a immersible pump for well, its characterized in that, includes the pump case and the pump body, the pump case is including the water inlet that is located the lower part and the delivery port that is located upper portion, the water inlet with it places the chamber to form the pump body between the delivery port, the pump body is including shielding motor and last impeller group, shielding motor's output shaft is followed the upper portion of shielding motor stretches out the upper shaft portion, it installs to go up the impeller group go up the axial portion, shielding motor's the installation department that passes through is fixed the inner wall in chamber is placed to the pump body, shielding motor's outer wall with the pump body is placed and is.

8. The utility model provides a immersible pump for well, a serial communication port, includes the pump case and the pump body, the pump case is including the water inlet that is located the lower part and the delivery port that is located upper portion, the water inlet with it places the chamber to form the pump body between the delivery port, the pump body is including shielding motor and lower impeller group, the output shaft of shielding motor is followed the upper portion of shielding motor stretches out lower axial region, lower impeller group installs lower axial region, the installation department that passes through of shielding motor is fixed the inner wall in chamber is placed to the pump body, the outer wall of shielding motor with the pump body is placed and is formed the rivers passageway between the inner wall.