KR101605104B1 - High efficiency and long life submersible motor pump - Google Patents

High efficiency and long life submersible motor pump Download PDF

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Publication number
KR101605104B1
KR101605104B1 KR1020150109986A KR20150109986A KR101605104B1 KR 101605104 B1 KR101605104 B1 KR 101605104B1 KR 1020150109986 A KR1020150109986 A KR 1020150109986A KR 20150109986 A KR20150109986 A KR 20150109986A KR 101605104 B1 KR101605104 B1 KR 101605104B1
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South Korea
Prior art keywords
pipe
fluid
discharge pipe
bending
inflow pipe
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Application number
KR1020150109986A
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Korean (ko)
Inventor
이남민
서은식
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이남민
서은식
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Priority to KR1020150109986A priority Critical patent/KR101605104B1/en
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Publication of KR101605104B1 publication Critical patent/KR101605104B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater motor pump for moving a fluid to the ground in water, and more particularly, to an electric motor pump for lowering the resistance against fluid discharge due to a tilted discharge pipe at a predetermined angle, And a plurality of vortex prevention ribs formed on one side wall of the discharge pipe for preventing the vortex phenomenon caused by the direction change of the fluid moving in the discharge pipe are provided so that the fluid can smoothly move, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high-efficiency and long-life submersible motor pump

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater motor pump for moving a fluid to the ground in water, and more particularly, to an electric motor pump for lowering the resistance against fluid discharge due to a tilted discharge pipe at a predetermined angle, And a plurality of vortex prevention ribs formed on one side wall of the discharge pipe for preventing the vortex phenomenon caused by the direction change of the fluid moving in the discharge pipe are provided so that the fluid can smoothly move, .

Generally, a pump is a rotation drive of a motor to make a vacuum to suck up water, and the process of transferring the water by using a motor is repeated so that water is supplied or drained. That is, atmospheric pressure due to instantaneous vacuum generation And it is used widely in industrial sites including pumping stations or emergency pumping pumps in specific places in flooded areas during rainy season.

In addition, pumping systems are being designed for pumping water, such as pumping groundwater in mines and irrigation in agricultural water, and pumps are used wherever fluids are used, ranging from farms, civil engineering works, factories to homes.

A submerged motor pump which is generally used is a centrifugal pump. The centrifugal pump has a plurality of suction chambers on its circumference. The suction pump has a pedestal for floatation from the ground, and a discharge port connected to the upper portion of the pedestal. A motor connected to the upper portion of the vortex casing, an impeller installed on a rotating shaft of the motor to draw water to a central portion, a housing enclosing the motor and protecting the vortex casing, And a discharge pipe installed and lifting the water.

Since the conventional submersible motor pump is formed such that the discharge port is inclined at 90 degrees, the flow direction of the fluid is suddenly changed to slow the flow velocity, and the fluid discharge amount must be reduced. In the portion where the direction of the fluid is changed, Air pocket phenomenon occurs and fluid can not be discharged smoothly. Therefore, resistance to the impeller is generated, and the life of the motor is shortened due to the overload of the motor, the residual voltage is increased, and the power consumption is increased.

Accordingly, it is necessary to develop a submersible motor pump which can smoothly discharge the fluid, prolong the service life of the motor, reduce electric power consumption, reduce vibration and noise, to be.

1. Korean Registered Patent No. 10-1109518 " Drainage underwater motor pump " (Registered on January 18, 2012) 2. Korean Patent No. 10-1107509 " Submersible motor pump with support " (registered on January 12, 2012)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a discharge tube which is formed so as to be inclined at a predetermined angle, preferably 45 degrees, And to provide a high-efficiency and long-life underwater motor pump having a simple structure and a manufacturing cost reduction effect, in which the load is reduced, the durability and life of the motor are extended, and the like.

In order to prevent the vortex phenomenon and the air pocket phenomenon occurring when the fluid moves on one side wall of the discharge pipe, a plurality of stream-shaped vortex prevention ribs, which do not restrict the moving direction of the fluid, And to provide a high-efficiency and long-life underwater motor pump that can reduce the amount of water.

The high efficiency and long-life underwater motor pump of the present invention comprises a pump housing (100) fixed to a slab (10) and having a support bracket (110) vertically installed at a lower end thereof; An inflow pipe (200) having an inner hollow tube shape and an end connected to a lower end of the support bracket (110); A suction unit 300 including a driving motor 320 positioned inside the other side of the inflow pipe 200 and rotating the impeller 310 to suck the fluid to the other side of the inflow pipe 200; The fluid is sucked into the inflow pipe 200 and is positioned between the support bracket 110 and the inflow pipe 200 so that the fluid transferred from the inflow pipe 200 can be smoothly moved and discharged. An outlet pipe 400 having a shape inclined upward at an angle with respect to the slab 10; A height adjusting means 600 formed along the circumferential surface of the inflow pipe 200 for adjusting the height of the inflow pipe 200 according to the depth of the inflow pipe 200 and adjusting the height of the other side of the inflow pipe 200 in the vertical direction; And a second electrode,

The inflow pipe 200 is divided into a fixed inflow pipe 210 and a flow inflow pipe 220 and the height adjusting unit 600 is formed between the fixed inflow pipe 210 and the inflow pipe 220 However,

The height adjusting means 600 includes a vertical movement lever 610 installed on a side of the flow inlet pipe 210 for vertically pulling the flow inlet pipe 210 upward; A first bending pipe (620) folded in accordance with the upward and downward movement of the inflow pipe (200); When the first bending pipe 620 is closed to prevent the first bending pipe 620 from contacting the fluid and the first bending pipe 620 is folded while the inflow pipe 200 moves up and down And a first waterproof cover (630) slidable along the folding direction of the first bending pipe (620).

The first waterproof cover 630 of the present invention is coupled to the inner side of the discharge pipe 400 in the upper direction of the first bending pipe 620 and has an upper groove 631-1 formed on one side thereof An upper cover 631; A lower cover 632 having one side coupled to the inner side of the discharge pipe 400 in the lower direction of the first bending pipe 620 and having a lower groove 632-1 formed on one side thereof; An upper protrusion 633-1 inserted into the upper groove 631-1 at one end and a lower protrusion 633-1 inserted into the lower groove 632-1 at the other end so as to slide along the compression and tension of the first bending tube 620, A sliding cover 633 on which a lower protrusion 633-2 to be inserted is formed; And a sealing ring 634 formed at the ends of the upper protrusion 633-1 and the lower protrusion 633-2, respectively,

The circumferential surface of the discharge pipe 400 adjusts the angle of movement of the fluid flowing along the discharge pipe 400 according to the user's choice and adjusts the angle of the discharge pipe 400 to adjust the direction of the discharged fluid. The angle adjusting means 700 is formed.

The angle adjusting means 700 is provided on the side surface of the discharge pipe 400 and includes an angle adjusting lever 710 for pulling the discharge pipe 400 up and down to adjust the angle formed by the upper end of the discharge pipe 400 ); A second bending pipe 720 folded according to the angle adjustment of the discharge pipe 400; A second waterproof cover 730 that hermetically seals the second bending pipe 720 to prevent the second bending pipe 720 from contacting the fluid and slides along the folding direction of the second bending pipe 720, ; And,

The inner surface of the discharge pipe 400 is connected to the discharge pipe 400 to change the moving path of the fluid. When the fluid is in contact with the inner surface of the discharge pipe 400, And a plurality of stream-shaped vortex prevention ribs 800 dispersing the fluid to prevent the generation of noise are formed at a predetermined interval.

Since the discharge pipe is formed so as to be inclined at a predetermined angle, preferably 45 degrees, the fluid discharged to the discharge pipe can be smoothly discharged, and the height adjusting means is provided so that the discharge pipe can move in the vertical direction, The length of the inflow pipe can be adjusted irrespective of whether or not the angle formed by the discharge pipe is changed, and the angle adjusting means is formed in the discharge pipe, so that the area of the fluid discharged can be variably controlled according to the user's selection.

In addition, the present invention has a waterproof cover on the height adjusting means and the angle adjusting means, so that foreign matter or the like contained in the fluid can be prevented from being deposited on the height adjusting means and the angle adjusting means.

In addition, the present invention can prevent a vortex phenomenon, an air pocket phenomenon, a vibration and a noise from occurring in a region where the angle of the discharge pipe is changed by providing a plurality of vortex prevention ribs on one side of the discharge pipe, So there is no restriction on the movement of the fluid.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing the overall structure of the present invention.
2 is a cross-sectional view illustrating a method for adjusting the height of a discharge pipe of the present invention.
3 is a cross-sectional view showing that the angle adjusting means is formed in the discharge pipe of the present invention.
4 is a cross-sectional view showing that the discharge pipe of the present invention is changed in angle by an angle adjusting means;
5 is a partial cross-sectional perspective view showing a main structure of a height adjusting means, an angle adjusting means and a waterproof cover according to the present invention.
6 is a cross-sectional view showing a part of a discharge pipe for showing the shape and position of the vortex prevention rib formed in the discharge pipe of the present invention.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a cross-sectional view showing the entire structure of the present invention, FIG. 2 is a cross-sectional view showing a method for adjusting a height of a discharge pipe according to the present invention, FIG. 3 is a cross- FIG. 5 is a partial cross-sectional perspective view showing a main structure of the height adjusting means and the angle adjusting means and the waterproof cover of the present invention, FIG. 6 is a perspective view showing a vortex formed in the discharge pipe of the present invention Sectional view showing a part of a discharge pipe for showing the shape and position of the prevention ribs.

Referring to FIG. 1, the high-efficiency and long-life underwater motor pump of the present invention has a pump housing 100 fixed to a slab 10 formed on the ground. The pump housing 100 has a lid 120 rotated in the up and down direction and a support bracket 110 pierced by the lower end of the pump housing 100 and rising in the vertical direction.

Referring to FIG. 1, an inlet pipe 200 is formed to be coupled with a lower end of the support bracket 110. The inlet pipe 200 is vertically raised, and the inside is formed into a hollow tube shape. At this time, one side of the inflow pipe 200 is connected to the support bracket 110, and the other side is located in the water.

At this time, a suction means 300 for sucking the emulsion is formed in the inflow pipe 200. The suction means 300 includes an impeller 310 located in the other side of the inlet pipe 200 or in the water so that the impeller 310 can be rotated by the impeller 310 to suck the fluid to the other side of the inlet pipe 200 (Not shown).

Referring to FIG. 1, a discharge pipe 400 is formed between the support bracket 110 and the inflow pipe 200. The discharge pipe 400 corresponds to a connection pipe for moving the fluid sucked into the inflow pipe 200 to the outside of the slab 10, that is, to the ground. At this time, the discharge pipe 400 is formed to be inclined at a predetermined angle with respect to the slab 10 so that fluid transferred from the inflow pipe 200 can be smoothly moved and discharged. At this time, the angle formed by the discharge pipe 400 can maintain an angle of 0 to 60 ° with respect to the slab 10, preferably 45 °. The permissible angle of the discharge pipe 400 can be changed according to the user's selection and design change.

The diameter D1 of the discharge pipe 400 and the diameter D2 of the inlet pipe 200 are formed to have the same diameter so that when the fluid moves through the inlet pipe 200 to the outlet pipe 400, It is possible to prevent the phenomenon of returning to the main body 200. Therefore, since the fluid can be smoothly discharged, the amount of power load on the driving motor 320 is reduced.

Referring to FIGS. 1 and 2, the inlet pipe 200 is provided with height adjusting means 600. The height adjusting means 600 increases the length of the inflow pipe 200 when the depth of the inflow pipe 200 is lower because the height of the other end of the inflow pipe 200 can be changed in the vertical direction according to the depth of the water, There is an advantage that the length of the display unit 200 can be reduced and used according to the user's selection according to the situation.

At this time, the height adjusting means 600 is formed along the circumferential surface of the inflow pipe 200. Thus, the inflow pipe 200 is divided into the fixed inflow pipe 210 and the inflow inflow pipe 220 around the height adjusting means 600. That is, since the height adjusting means 600 is formed between the fixed inlet pipe 210 and the flow inlet pipe 220, the height adjusting means 600 can move the flow inlet pipe 220 in the vertical direction .

Referring to FIGS. 1 and 2, the height adjusting means 600 includes a vertical movement lever 610, a first bending pipe 620, and a first waterproof cover 630. The up-and-down movement lever 610 is provided on the side of the inflow pipe 200, preferably on the side of the inflow pipe 220 so as to adjust the inflow pipe 220 in the up-and-down direction. The vertical movement lever 610 is composed of a lever 611 exposed on the outer side of the slab 10 and a pulling rib 612 formed on the other side of the lever 611. When the lever 611 is pulled The ribs 612 can be moved up and down.

The first bending pipe 620 is formed along the circumferential surface of the inflow pipe 200 and is folded in accordance with the upward and downward movement of the inflow pipe 220. The first bending pipe 620 may be a flexible pipe or a corrugated pipe having a plurality of bends.

The first waterproof cover 630 may be configured such that the first bending pipe 620 is in contact with the fluid so that foreign matter or dirt contained in the fluid is stacked on or interfered with the first bending pipe 620 to operate the first bending pipe 620 And is formed for the purpose of preventing generation of a constraint. That is, the first waterproof cover 630 is formed on the inner surface of the inflow pipe 200 to seal the first bending pipe 620 to prevent the first bending pipe 620 from being in contact with the fluid, When the pipe 620 is folded, the pipe 620 is slid up and down along the folding direction of the first folding pipe 620.

Referring to FIGS. 1 and 5, the first waterproof cover 630 will be described in more detail. The first waterproof cover 630 includes an upper cover 631, a lower cover 632, a sliding cover 633, 634).

One side of the upper cover 631 can be coupled to the inner side of the fixed inflow pipe 210 in the upper direction of the first bending pipe 620 and an upper groove 631-1 is formed in one side thereof. The upper cover 631 is formed to apply a certain elastic force to a portion where the upper cover 631 and the fixed inflow pipe 210 are coupled.

The lower cover 632 is formed in a symmetrical shape with the upper cover 631 and has one side joined to the inner side of the flow inflow pipe 220 in the downward direction of the first bending pipe 620, Groove 632-1 is formed. The lower cover 632 is formed with a constant elastic force on a portion where the flow inlet pipe 220 and the lower cover 632 are coupled to the upper cover 631.

The sliding cover 633 is formed with an upper projection 633-1 to be engaged with the upper groove 631-1 at one side so as to slide in the vertical direction in accordance with compression and tension of the first bending pipe 620, And a lower protrusion 633-2 coupled to the lower groove 632-1. Accordingly, when the first bending pipe 620 is compressed, the upper cover 631 is guided by the sliding cover 633 to move downward, and the lower cover 632 is guided by the sliding cover 633 to move upward .

The sealing ring 634 is provided at the ends of the upper protrusions 633-1 and the lower protrusions 633-2 so as to prevent the inflow of fluid between the upper protrusions 633-1 and the lower protrusions 633-2 Thereby sealing the inflow of the fluid.

Referring to FIG. 3, at an upper end of the discharge pipe 400, an angle adjusting means 700 for variably controlling a moving angle of the fluid moving along the discharge pipe 400 according to a user's selection is formed. The angle adjusting means 700 adjusts the angle formed by the discharge pipe 400 to adjust the direction of the fluid discharged to the other end of the discharge pipe 400. As a result, the position of the end of the discharge pipe 400 can be changed in accordance with the position of the connection pipe 20, so that there is an advantage that the working efficiency can be improved.

Referring to FIGS. 3, 4 and 5 (b), the angle adjusting means 700 includes an angle adjusting lever 710, a second bending tube 720 and a second waterproof cover 730.

The angle adjusting lever 710 is provided at a position where the fluid is discharged from the side of the discharge pipe 400 with respect to the other end of the discharge pipe 400. In order to adjust the angle formed by the upper end of the discharge pipe 400, You can tow. The angle adjusting lever 710 is composed of a lever 711 and a pulling rib 712. The angle of the pulling rib 712 moves upward and downward by the operation of the lever 711 to adjust the angle formed by the discharge tube 400 .

The second bending pipe 720 is formed to have the same shape as the first bending pipe 620 and is folded in accordance with the upward and downward movement of the discharge pipe 400. The second bending pipe 720 may be formed of a flexible tube or a bellows tube having a plurality of bent portions.

The second waterproof cover 730 has a purpose of sealing the second bending pipe 720. That is, the second bending pipe 720 is brought into contact with the fluid to prevent foreign substances or dirt contained in the fluid from being stacked on or interfered with the second bending pipe 720 to restrict the operation of the second bending pipe 620 . Since the second waterproof cover 730 has the same structure and shape as the first waterproof cover 630, the detailed description thereof is based on the first waterproof cover 630.

Referring to FIG. 6, a plurality of vortex prevention ribs 800 having a streamlined shape are formed on the inner surface of the discharge pipe 400 at predetermined intervals. It is preferable that the vortex prevention rib 800 is formed on the inner upper surface of the portion where the discharge tube 400 is bent. This prevents the vortex phenomenon and the vibration noise generated due to the mutual contact between the fluid and the inside of the discharge pipe 400 due to the vortex prevention rib 800 due to the fluid being changed in the moving direction along the bent inner side of the discharge pipe 400 .

That is, since the vortex prevention rib 800 is formed to have a streamlined shape in the direction opposite to the moving direction of the fluid, the fluid contacts the vortex prevention rib 800, and at the same time the flow velocity decreases, Is smoothly changed. Further, vibration and noise are reduced, and the resistance caused by the fluid flows along the surface of the vortex prevention rib 800, so that the vortex phenomenon does not occur.

Accordingly, since the high efficiency long life motor pump of the present invention is formed so that the discharge pipe 400 is inclined at 45 degrees, the fluid discharged to the discharge pipe can be smoothly discharged, and a plurality of vortex prevention ribs There is an advantage that a vortex phenomenon and an air pocket phenomenon occurring in an area where the angle of the discharge pipe 400 is changed, vibration and noise can be prevented.

The length of the inflow pipe can be adjusted regardless of the depth of the water due to the height adjusting means 600 and the first and second waterproof covers 630 and 730 can be attached to the height adjusting means 600 and the angle adjusting means 700 So that it is possible to prevent a foreign substance or the like contained in the fluid from being deposited on the height adjusting means 600 and the angle adjusting means 700.

10: Slab 20: Connector
100: pump housing 110: support bracket
200: inlet pipe 300: suction means
310: impeller 400: discharge pipe
600: height adjusting means 610: vertical moving lever
611: Lever 612: Traction rib
620: first corrugated pipe 630: first waterproof cover
631: upper cover 631-1: upper groove
632: Lower cover 632-1: Lower groove
633: Sliding cover 633-1: Upper projection
633-2: Lower protrusion 634: Sealing ring
700: Angle adjusting means 710: Angle adjusting lever
720: 2nd corrugated pipe 730: 2nd waterproof cover
800: Vortex prevention ribs

Claims (6)

A pump housing (100) fixed to the slab (10) and having a support bracket (110) vertically installed at a lower end thereof;
An inflow pipe (200) having an inner hollow tube shape and an end connected to a lower end of the support bracket (110);
A suction unit 300 including a driving motor 320 positioned inside the other side of the inflow pipe 200 and rotating the impeller 310 to suck the fluid to the other side of the inflow pipe 200;
The fluid is sucked into the inflow pipe 200 and is positioned between the support bracket 110 and the inflow pipe 200 so that the fluid transferred from the inflow pipe 200 can be smoothly moved and discharged. An outlet pipe 400 having a shape inclined upward at an angle with respect to the slab 10,
A height adjusting means 600 formed along the circumferential surface of the inflow pipe 200 for adjusting the height of the inflow pipe 200 according to the depth of the inflow pipe 200 and adjusting the height of the other side of the inflow pipe 200 in the vertical direction;
/ RTI >
The inflow pipe 200 is divided into a fixed inflow pipe 210 and a flow inflow pipe 220 and the height adjusting unit 600 is formed between the fixed inflow pipe 210 and the inflow pipe 220 However,
The height adjustment means (600)
A vertical movement lever 610 installed on the side of the flow inlet pipe 220 for pulling the flow inlet pipe 220 in the vertical direction;
A first bending pipe (620) folded in accordance with the upward and downward movement of the inflow pipe (200);
When the first bending pipe 620 is closed to prevent the first bending pipe 620 from contacting the fluid and the first bending pipe 620 is folded while the inflow pipe 200 moves up and down A first waterproof cover 630 slidable along the folding direction of the first bending pipe 620;
Wherein the pump is connected to the pump. delete The method according to claim 1,
The first waterproof cover 630
An upper cover 631 having one side coupled to the inner side surface of the discharge pipe 400 in the upward direction of the first bending pipe 620 and having an upper groove 631-1 formed on one side thereof;
A lower cover 632 having one side coupled to the inner side of the discharge pipe 400 in the lower direction of the first bending pipe 620 and having a lower groove 632-1 formed on one side thereof;
An upper protrusion 633-1 inserted into the upper groove 631-1 at one end and a lower protrusion 633-1 inserted into the lower groove 632-1 at the other end so as to slide along the compression and tension of the first bending pipe 620, A sliding cover 633 on which a lower protrusion 633-2 to be inserted is formed;
A sealing ring 634 formed at each end of the upper protrusion 633-1 and the lower protrusion 633-2;
And a high-efficiency and long-life underwater motor pump. The method according to claim 1,
The circumferential surface of the discharge pipe 400 adjusts the angle of movement of the fluid flowing along the discharge pipe 400 according to the user's choice and adjusts the angle of the discharge pipe 400 to adjust the direction of the discharged fluid. Wherein the angle adjusting means (700) is formed on the bottom surface of the bottom plate. 5. The method of claim 4,
The angle adjusting means (700)
An angle adjusting lever 710 provided on a side surface of the discharge pipe 400 and pulling the discharge pipe 400 upward and downward to adjust the angle formed by the upper end of the discharge pipe 400;
A second bending pipe 720 folded according to the angle adjustment of the discharge pipe 400;
A second waterproof cover 730 that hermetically seals the second bending pipe 720 to prevent the second bending pipe 720 from contacting the fluid and slides along the folding direction of the second bending pipe 720, ;
Wherein the pump is connected to the pump. The method according to claim 1,
The inner surface of the discharge pipe 400 is connected to the discharge pipe 400 to change the moving path of the fluid. When the fluid is in contact with the inner surface of the discharge pipe 400, , And a plurality of vortex prevention ribs (800) for dispersing the fluid to prevent the generation of noise are formed at a predetermined interval.
KR1020150109986A 2015-08-04 2015-08-04 High efficiency and long life submersible motor pump KR101605104B1 (en)

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KR1020150109986A KR101605104B1 (en) 2015-08-04 2015-08-04 High efficiency and long life submersible motor pump

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101781456B1 (en) * 2016-06-16 2017-09-26 엔에스하이드로(주) Submersible pump for sewage disposal
KR102025102B1 (en) * 2019-03-19 2019-09-25 이강주 in-water pump facility in column type
KR102026289B1 (en) 2019-03-06 2019-09-30 (주)아이오텍 Pump-integrated underwater motor and pump-integrated underwater motor controller operated by wireless power
CN111139800A (en) * 2020-01-17 2020-05-12 华北水利水电大学 Adjustable vortex-eliminating rectifying device and vortex-eliminating rectifying method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005061317A (en) * 2003-08-12 2005-03-10 Ebara Corp Vertical shaft pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005061317A (en) * 2003-08-12 2005-03-10 Ebara Corp Vertical shaft pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101781456B1 (en) * 2016-06-16 2017-09-26 엔에스하이드로(주) Submersible pump for sewage disposal
KR102026289B1 (en) 2019-03-06 2019-09-30 (주)아이오텍 Pump-integrated underwater motor and pump-integrated underwater motor controller operated by wireless power
KR102025102B1 (en) * 2019-03-19 2019-09-25 이강주 in-water pump facility in column type
CN111139800A (en) * 2020-01-17 2020-05-12 华北水利水电大学 Adjustable vortex-eliminating rectifying device and vortex-eliminating rectifying method
CN111139800B (en) * 2020-01-17 2024-03-12 华北水利水电大学 Adjustable vortex eliminating and rectifying device and vortex eliminating and rectifying method

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