KR101647422B1 - a strainers for water pumps with Stand Function - Google Patents

a strainers for water pumps with Stand Function Download PDF

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Publication number
KR101647422B1
KR101647422B1 KR1020160038710A KR20160038710A KR101647422B1 KR 101647422 B1 KR101647422 B1 KR 101647422B1 KR 1020160038710 A KR1020160038710 A KR 1020160038710A KR 20160038710 A KR20160038710 A KR 20160038710A KR 101647422 B1 KR101647422 B1 KR 101647422B1
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KR
South Korea
Prior art keywords
plate
pump
blade
underwater pump
fluid
Prior art date
Application number
KR1020160038710A
Other languages
Korean (ko)
Inventor
김덕환
Original Assignee
동원펌프주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 동원펌프주식회사 filed Critical 동원펌프주식회사
Priority to KR1020160038710A priority Critical patent/KR101647422B1/en
Application granted granted Critical
Publication of KR101647422B1 publication Critical patent/KR101647422B1/en

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Classifications

    • 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
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/11—Kind or type liquid, i.e. incompressible

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

Abstract

The present invention relates to a strainer for an underwater pump including a support function, capable of filtering out foreign substances, contained in inhaled fluids, by being combined with an underwater pump. According to an embodiment of the present invention, the strainer for an underwater pump is combined with an inlet of an underwater pump to filter out foreign substances, contained in fluids inhaled through the inlet, while supporting the underwater pump on the ground. The present invention comprises: a plate part placed around the inlet of the underwater pump to be combined with the pump; and a wing panel placed in the lower part of the plate part, formed into a panel shape to have multiple ends erected towards the inlet, and filtering out the foreign substances while supporting the plate part by separating the plate part from the ground. Therefore, the present invention is capable of performing filtering and supporting functions at the same time, and reducing manufacturing costs.

Description

[0001] The present invention relates to a strainer for a water pump having a pedestal function,

The present invention relates to a strainer for a submersible pump, which filters foreign substances contained in a fluid sucked and coupled to an underwater pump.

Generally, the submersible pump is installed in the interior of the house to discharge the stored fluid to the outside.

On the other hand, in the case where the underwater pump is installed in a wastewater tank, foreign matter is contained in the fluid, and when the foreign matter is sucked together, the foreign matter blocks the suction port of the underwater pump or interrupts the efficiency of the underwater pump. Or the efficiency is lowered.

In order to solve this problem, a "structure for preventing penetration of foreign matter into a submersible pump" has been disclosed in Korean Utility Model Publication No. 20-1998-032604 (published on September 5, 1998).

Background Art Conventionally, a structure for preventing foreign matter from penetrating into a submersible pump is a structure for preventing foreign matter from penetrating into a submersible pump. The structure includes a rotating shaft having an impeller mounted thereon and a sleeve inserted therein, a bearing housing inserted into the upper end of the rotating shaft, , The shovel

An oil case having an upper and a lower groove formed therein for receiving a mechanical seal and an oil seal so as to be seated on one end of the bearing housing and a casing having a suction port and a discharge port and being in rotation contact with the impeller, And a strainer fastened to one end of the casing and having several suction holes formed on an outer diameter surface thereof.

Such conventional structure for preventing penetration of foreign substances into an underwater pump is constructed such that a strainer having a suction hole is installed so as to surround the suction port to filter out foreign substances contained in the fluid sucked into the suction port, thereby preventing breakage and clogging of the underwater pump due to foreign substances .

However, in the conventional structure for preventing penetration of foreign matter into a submersible pump, when the foreign substance blocks the periphery of the strainer, the suction force is lowered and the efficiency of the pump is lowered. Moreover, since the rigidity is weak and the submersible pump can not be supported apart from the floor, By separately installing a pedestal for installation, the installation cost is increased and the installation is troublesome.

In addition, the conventional structure for preventing the penetration of foreign matter into the submersible pump has a problem that the manufacturing cost is increased because the size of the suction hole needs to be made different depending on the size of the foreign matter.

Further, since the strainer is completely replaced when the strainer is broken, there is a problem that the replacement cost due to the replacement increases.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to solve the problems of the prior art. The present invention provides a strainer for a submersible pump.

Further, it is another object of the present invention to provide a strainer for a submersible pump, which can reduce the cost of production by reducing the size of foreign matter and making it separately according to the size of foreign matter, and can reduce the replacement cost due to breakage of the strainer will be.

According to an aspect of the present invention, there is provided a strainer for a submersible pump having a pedestal function, which is coupled to a suction port of an underwater pump to filter out foreign matter contained in a fluid sucked into the suction port, A strainer for an underwater pump, comprising: a plate portion that is seated around an inlet of the underwater pump and is coupled to the underwater pump; and a plurality of radially arranged end portions formed at the lower portion of the plate portion, And a vane plate which is erected so as to face the suction port and which supports the plate portion at a distance from the bottom while spreading foreign matter on the outer end thereof.

Wherein the blade comprises a blade portion provided at an outer end of the blades so that the blades collide against the blades by a suction force of the submersible pump.

The vane plate may include a curved surface portion curved in a circumferential direction at an inner end thereof to guide the fluid in a direction in which the fluid is rotated and sucked by rotation of the impeller of the submersible pump.

Wherein the wing plate includes a fitting projection projecting from an upper end of the wing plate along an upper portion of the wing plate, and the plate portion includes a fitting groove into which the fitting projection is fitted so that the fitting projection is fitted into the fitting groove The blade plate can be detachably coupled to the plate portion in a losing form.

The vane plate may be formed to extend in a circular arc shape from a lower portion to an upper portion so that a smaller size foreign matter is filtered at an upper portion where the suction force is relatively weaker than a lower portion.

According to the present invention, a wing plate is provided radially on a plate portion to perform a function of filtering out foreign matter so that foreign matter is wrapped around the wing plate or between the wing plate and the stiffness of the wing plate is increased, By performing the functions together, the manufacturing cost can be reduced and the underwater pump can be installed easily.

The wing plate is detachably attached to the plate portion so that it is not necessary to separately manufacture the wing plate according to the size of foreign matter by adjusting the number of the wing plates installed according to the size of the foreign substance, have.

In addition, the fitting groove and the fitting projection, which are engaged with the blade plate and the plate portion, are formed as inclined faces, so that the blade is pressurized in a direction to be fitted in the plate portion by the self weight of the underwater pump, thereby firmly coupling the blade plate to the plate portion.

In addition, the curved portion is formed in the blade plate, and the fluid that is rotated and sucked by the impeller is previously rotated and provided to the suction port, thereby improving the efficiency of the pump.

Further, the blades are provided at the outer end of the blade plate, so that the foreign substance can be cut by the suction force of the pump.

1 is a side view showing a state in which a strainer for a submersible pump having a pedestal function according to an embodiment of the present invention is installed in an underwater pump.
2 is a perspective view of a strainer for an underwater pump having a pedestal function according to an embodiment of the present invention as viewed from the bottom.
3 is a bottom view of a strainer for an underwater pump having a pedestal function according to an embodiment of the present invention.
4 is a side cross-sectional view of a strainer for an underwater pump having a pedestal function according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

2 to 4, the strainer 100 for a submersible pump having a pedestal function according to an embodiment of the present invention may include a plate portion 110.

The plate portion 110 may be formed in a plate shape, and a through hole 110 having a size corresponding to the suction port may be formed at the center so that the fluid can be sucked into the suction port.

The plate portion 110 may be formed with a plurality of bolt holes 112 through which bolts are fastened by bolts around the intake port.

A plurality of fitting grooves 113 may be radially formed on the outer surface of the plate 110 at the outer side of the suction port. May be formed so as to have an inclined surface that gradually becomes deeper toward the center from the outside of the plate portion 110.

In this case, the size of the fitting groove 113 can be changed according to the size of the fluid contained in the fluid, and the number of the blade plates 150 installed according to the size of the foreign matter It is possible to form as many insertion grooves 113 as possible so as to be radially formed so as to be able to adjust the number of the insertion grooves 113.

The fitting groove 113 is formed to be open to the outside of the plate portion 110 and the end of the plate portion 110 where the inlet is located is formed with a locking protrusion .

2 to 4, the strainer 100 for an underwater pump according to an embodiment of the present invention may include a wing plate 150.

The wing plate 150 is disposed at a lower portion of the plate portion 110 to support the plate portion 110 away from the collectors and to filter foreign substances contained in the fluid sucked by the underwater pump 200 .

The blade plate 150 may be formed in the shape of a plate, and a side end thereof may be installed at a lower portion of the plate portion 110 toward the suction port, and may be radially coupled to the plate portion 110 radially around the suction port.

In addition, the blade plate 150 may be formed in an arc shape such that the side end positioned on the suction port side gradually approaches the suction port as it goes from the lower part to the upper part.

Here, since the submersible pump 200 is formed toward the bottom of the collecting column, the suction force of the submerged pump 200 is lower than the adjacent perimeter of the suction port when the fluid is sucked.

Because of this, since the suction force at the lower portion of the wing plate 150 is stronger than the upper portion of the wing plate 150, if the wing plate 150 is installed in the lower portion so as to filter foreign matters too small in the lower portion, the suction force may be lowered.

In order to prevent this, the distance between the radially disposed blades 150 is narrowed due to the angle between the radially disposed blades 150 and the center of the inlet. Therefore, the blades 150 are formed so as to extend toward the air inlet, And a blade plate 150 is formed to filter foreign matter of a smaller size.

In addition, the blade plate 150 may include a fitting projection 153.

The fitting projection 153 may be formed in a shape corresponding to the fitting groove 113 so as to be fitted into the fitting groove 113 formed in the plate portion 110. The fitting projection 153 may be formed in a shape corresponding to the shape of the wing plate 150, And may be formed along the wing plate 150 on a part or the whole of the upper end of the wing plate 150.

The vane plate 150 may be formed by coupling the vane plate 150 to all the fitting grooves 113 formed in the plate portion 110 according to the size of foreign matter contained in the fluid, It is possible to couple the wing plate 150 to only one of the fitting grooves 113. For example, the fitting groove 113 may be coupled to the plate portion 110 in such a manner that at least one of the fitting grooves 113 is skipped, have.

The upper end portion of the fitting protrusion 153 may be formed to have an inclined surface corresponding to the fitting recess 113, for example, an inclined surface gradually increasing from the outer side of the fitting recess 113 toward the center.

In addition, the blade plate 150 may include a curved surface portion 151.

The curved surface portion 151 minimizes the vortex of the fluid flowing into the suction port and can guide the movement of the fluid to smooth the flow of the fluid.

The curved surface portion 151 may be formed by bending the end portion where the suction port of the blade 150 is positioned in the same direction as the direction in which the fluid is rotated by the impeller 250.

The curved surface portion 151 configured as described above can improve the efficiency of the pump by minimizing the load of the impeller 250 by rotating the fluid in advance in the direction in which the fluid is rotated by the impeller 250 when the fluid is sucked.

In addition, the blade plate 150 may include a blade portion 157.

The blade unit 157 can cut off foreign matter spattered on the blade plate 150 or foreign matter impinging on the blade plate 150 by the suction force of the underwater pump 200.

The blade portion 157 may be provided at an outer end of the blade 150. The blade portion 157 may be formed by sharpening the outer end of the blade 150, To the outer edge of the blade plate 150. The blade plate 150 may be formed of a metal plate.

When the blade unit 157 is configured to couple the blade to the blade 150, a blade groove 155 is formed along the height direction of the blade 150 at an end of the blade unit 157 It is possible to insert the blade into the blade groove 155 in a form of interference so as to replace the blade when necessary.

At this time, since the fluid is sucked from the outer end of the blade plate 150 to the suction port, the blade inserted into the blade groove 155 can not easily be detached from the blade groove 155, The water can be discharged to the discharge casing 230 through the suction port of the underwater pump 200. [

The operation and effect between the above-described respective constitutions will be described.

The strainer 100 for a submersible pump having a pedestal function according to the present invention is characterized in that the number of the blade plates 150 to be coupled to the plate portion 110 according to the size of foreign matter contained in the fluid And the fitting projection 153 formed on the upper end of the wing plate 150 is engaged with the fitting groove 113 so as to be radially spaced apart from the plate portion 110.

The plate portion 110 is coupled to the suction port of the submersible pump 200 in a state in which the bolt is fastened.

1, an underwater pump 200 equipped with a strainer 100 for a submersible pump having a pedestal function is moved from the upper part of the collecting unit to a portion where the collecting discharge pipe 300 is located through the lifting unit And the discharge port of the submersible pump 200 is coupled to the discharge pipe 300.

The underwater pump strainer 100 having the pedestal function thus installed is supported by the underwater pump 200 separated from the bottom by the radially disposed blade plates 150 of the plate portion 110.

When the wing plates 150 are pressed by the weight of the underwater pump 200, since the fitting grooves 113 and the fitting protrusions 153 are formed as inclined surfaces, the wing plates 150 are formed inside the fitting groove 113 The wing plates 150 are firmly coupled to the plate portion 110 without coupling the wing plates 150 to the plate portion 110 through separate fastening members because the pressing force acts in the direction in which the suction port is located (See FIG. 4).

The wing plate 150 is coupled to the plate portion 110 by the fitting protrusion 153 and the fitting groove 113. However, in order to reduce the manufacturing cost, (110) may be integrally cast.

The end of the blade 150 located at the suction port side may be provided with a curved surface portion 151 for guiding the fluid so that the fluid can be previously rotated in the direction in which the fluid is rotated by the impeller 250 And a knife portion 157 for cutting foreign substances may be provided on the outer side of the blade 150 in the opposite direction in which the curved portion 151 is formed.

When the submersible pump 200 is installed in the collecting unit and the submerged pump 200 is started, the driving motor 210 rotates the impeller 250 to generate a suction force, and the casing 230, which surrounds the impeller 250, The fluid is sucked into the discharge pipe 300 connected to the discharge port and discharged to the outside of the collecting device.

At this time, when the fluid is sucked through the suction port, the fluid sucked into the blade 150 passes through the bent portion, and the fluid is previously rotated in the direction in which the fluid rotates in accordance with the rotation of the impeller 250, The resistance applied to the impeller 250 can be minimized and the efficiency of the pump can be improved.

In the case where foreign matter is contained in the fluid, the fluid filtered by the foreign matter can be sucked into the suction port by the outer end of the blade plates 150 or between the blade plates 150, The colliding foreign substances can be cut to a small size by the suction force of the underwater pump 200 and can be discharged to the discharge pipe 300 through the suction port of the underwater pump 200.

Therefore, the strainer 100 for a submersible pump having a pedestal function according to the embodiment of the present invention can reduce the manufacturing cost by simultaneously performing the function of the pedestal and the function of filtering the foreign substances.

The wing plate 150 is detachably coupled to the plate portion 110 in such a manner that the wing plate 150 is fitted in the fitting protrusion 153 and the fitting groove 113, It is possible to reduce the replacement cost by easily replacing the blades 150 when the blades 150 are broken.

The fitting protrusions 153 and the fitting grooves 113 are formed to have inclined surfaces to allow the plate portion 110 and the blade plate 150 to be coupled with each other, The wing plate 150 can be firmly fixed to the plate portion 110 without any separate fastening means.

In addition, the curved surface portion 151 is formed in the blade plate 150 so that the efficiency of the pump can be improved by rotating the fluid in advance in the rotating direction.

In addition, the outer edge of the blade plate 150 is provided with a blade portion 157 to cut foreign matter, thereby preventing clogging due to foreign matter.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

100: strainer for underwater pump 110: plate part
111: Through hole 112: Bolt hole
113: fitting groove 113a:
150: wing plate 151:
153: fit projection 155: blade groove
157: blade part 200: submerged pump
210: drive motor 230: casing
250: impeller 300: column pipe

Claims (5)

1. A strainer for an underwater pump, which is coupled to an inlet of an underwater pump to filter out foreign matter contained in a fluid sucked into an intake port,
A plate portion that is seated around the suction port of the underwater pump and is coupled to the underwater pump,
A plurality of plate members formed in a shape of a plate and having a plurality of radial portions oriented in the shape of a plate so that the ends thereof face the air inlet port and foreign substances are spread on the outer ends of the plate members, Plate,
Wherein the wing plate is formed to extend in an arcuate shape from a lower portion to an upper portion so that a smaller size foreign matter is filtered at an upper portion where the suction force is relatively weaker than a lower portion. The method according to claim 1,
The wing plate
And a blade unit provided at an outer end of the blade unit to cut foreign matter by the suction force of the submerged pump against the blade unit. The method according to claim 1,
The wing plate
And a curved surface portion curved in the circumferential direction on the inner side so as to guide the fluid in a direction in which the fluid is rotated and sucked by rotation of the impeller of the submersible pump. The method according to claim 1,
Wherein the wing plate includes a fitting projection projecting from an upper end of the wing plate along an upper portion of the wing plate,
Wherein the plate portion includes a fitting groove into which the fitting projection is fitted,
And the blade plate is detachably coupled to the plate portion in such a manner that the fitting projection is fitted in the fitting groove.
delete
KR1020160038710A 2016-03-30 2016-03-30 a strainers for water pumps with Stand Function KR101647422B1 (en)

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Application Number Priority Date Filing Date Title
KR1020160038710A KR101647422B1 (en) 2016-03-30 2016-03-30 a strainers for water pumps with Stand Function

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Application Number Priority Date Filing Date Title
KR1020160038710A KR101647422B1 (en) 2016-03-30 2016-03-30 a strainers for water pumps with Stand Function

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019050090A1 (en) * 2017-09-08 2019-03-14 권영섭 High efficiency fluid distributor and fluid pump comprising same
CN111852955A (en) * 2020-06-16 2020-10-30 江苏大学 Pump front cavity automatic compensation device for improving closed impeller backflow
KR102553492B1 (en) * 2022-03-25 2023-07-10 신신이앤지(주) Induction device for water intake
KR102653746B1 (en) 2023-09-14 2024-04-02 제이엠아이(주) Zinc anod unit for submersible pumps with improved corrosion resistance and maintainability

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101325716B1 (en) * 2013-07-09 2013-11-08 제이엠아이 (주) Underwater pump having foreign body removal function
KR20150091840A (en) * 2014-02-04 2015-08-12 주식회사 한진펌프 Underwater grinder pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101325716B1 (en) * 2013-07-09 2013-11-08 제이엠아이 (주) Underwater pump having foreign body removal function
KR20150091840A (en) * 2014-02-04 2015-08-12 주식회사 한진펌프 Underwater grinder pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019050090A1 (en) * 2017-09-08 2019-03-14 권영섭 High efficiency fluid distributor and fluid pump comprising same
CN111852955A (en) * 2020-06-16 2020-10-30 江苏大学 Pump front cavity automatic compensation device for improving closed impeller backflow
CN111852955B (en) * 2020-06-16 2021-10-12 江苏大学 Pump front cavity automatic compensation device for improving closed impeller backflow
KR102553492B1 (en) * 2022-03-25 2023-07-10 신신이앤지(주) Induction device for water intake
KR102653746B1 (en) 2023-09-14 2024-04-02 제이엠아이(주) Zinc anod unit for submersible pumps with improved corrosion resistance and maintainability

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