KR102493599B1 - Pump adopting dimple - Google Patents

Abstract

The present invention provides a pump with dimples, which can improve pumping efficiency by minimizing the vortex generated when water flows in through a lower inlet. The pump comprises: a drive motor unit provided with a rotational shaft in a vertical direction on a lower side; a drum-shaped main motor case that covers and surrounds the drive motor unit while letting the rotational shaft protrude downward; a pump case that covers and surrounds the main motor case and the outer circumference of the rotational shaft, and including the lower inlet and upper outlet parts communicating with a flow guide formed on a side of the main motor case; an impeller provided on the rotational shaft on a lower side of the pump case to move water flowing into the lower inlet part along the flow guide to the upper outlet part; and an upper motor case formed in a hemispherical shape over the main motor case and having dimples applied to the surface at predetermined intervals.

Description

Pump with dimple applied {Pump adopting dimple}

The present invention relates to a pump, and more particularly, to a dimple-applied pump capable of reducing energy by enabling water to flow with sufficient hydraulic pressure by minimizing turbulence generated in water flowing along an internal flow guide. .

In general, a pump is a device that is applied to a location where water is stored, such as a reservoir, to move fluid to another location.

Such a pump includes a drive motor unit including a rotor and a stator, a frame for sealing the drive motor unit, and an impeller rotating by the drive motor unit to suck and discharge fluid, so that when the drive unit rotates the impeller The fluid stored in the reservoir is sucked in and discharged by the centrifugal force generated by the impeller.

1 is a schematic cross-sectional view of a mixed flow pump according to the prior art.

As shown, the mixed flow pump 10 according to the prior art includes a drive motor unit 15 equipped with a rotation shaft 16 in the lower up and down direction, covering the drive motor unit 15 and extending the rotation shaft 16 to the lower side. A drum-shaped main motor case 17 is provided so as to protrude. In addition, the outer circumference of the main motor case 17 and the rotating shaft 16 is covered and wrapped, and a flow guide 12 is formed on the side of the main motor case 17, and the lower inlet portion communicates with the flow guide 12. (11) and the pump case 18 in which the upper outlet portion 13 is formed, and the lower inlet portion 11 provided on the rotating shaft 16 at the lower side of the pump case 18 along the flow guide 12 ) It is provided with an impeller 14 that rotates together with the rotating shaft 16 to move the water introduced into the upper outlet 13 to be discharged to the outside of the upper outlet 13.

According to such a conventional mixed-flow pump structure, significant turbulence occurs in the water flowing around the lower flow guide 12 of the upper outflow portion 13 inside the pump case 18, resulting in fluid friction, thereby generating the upper outflow portion ( There was a problem that the outflow of water through 13) could not be performed efficiently.

Korean Patent Registration No. 10-2232682

The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a mixed-flow pump capable of efficiently improving pumping efficiency by minimizing vortexes generated in water introduced through a lower inlet.

In addition, an object of the present invention is to provide a mixed flow pump that can bring about an energy saving effect by improving the flow of water flowing along a flow path guide inside the pump.

Another object of the present invention is to provide a mixed flow pump capable of easily sensing the hydraulic pressure of water flowing inside the pump.

In addition, an object of the present invention is to provide a mixed flow pump that can easily determine the degree of adsorption of foreign substances to a flow guide.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention provides a drive motor unit having a rotational shaft in the lower vertical direction; a drum-shaped main motor case covering and covering the drive motor and protruding the rotating shaft downward; A pump case having a flow guide formed on the side of the main motor case and a lower inlet and an upper outlet formed in communication with the flow guide and wrapped around the outer circumference of the main motor case and the rotating shaft; an impeller provided on the rotating shaft at the lower side of the pump case to move the water flowing into the lower inlet part along the flow path guide to the upper outlet part; and an upper motor case having a hemispherical shape on the upper part of the main motor case and having dimples applied to the surface at predetermined intervals.

Here, a vortex prevention unit provided at a lower portion of the pump case to prevent vortex flow of water introduced through the lower inlet may be further provided.

In addition, a hydraulic pressure sensing unit provided inside the pump case may be further provided to measure the pressure of water flowing through the flow guide.

The dimple-applied pump according to an embodiment of the present invention configured as described above has the following effects.

First, according to the dimple-applied pump according to an embodiment of the present invention, the pumping efficiency can be efficiently improved by minimizing the vortex generated in the water flowing through the lower inlet by applying the vortex prevention unit inside the pump case. .

Second, according to the dimple-applied pump according to an embodiment of the present invention, the dimple is applied to the upper motor case inside the pump case so that the water flowing along the flow path minimizes the turbulence generated around the upper motor case, thereby reducing the flow of water can be improved and thus energy saving effect can be brought about.

Third, according to the dimple-applied pump according to an embodiment of the present invention, the hydraulic pressure of water flowing inside the pump can be easily sensed visually from the outside by applying an indicator rod portion exposed to the outside along the flow path guide on one side of the pump case. effect that can be

Fourth, according to the dimple-applied pump according to an embodiment of the present invention, a foreign matter detection module inserted into the flow path guide on one side of the pump case and selectively drawn out is applied to easily detect the degree of adsorption of foreign matter on the inner surface of the flow path guide. It has the effect of being able to identify and clean the inside of the flow guide in a timely manner.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a schematic cross-sectional view of a mixed flow pump according to the prior art;
2 is a cross-sectional view showing a pump to which dimples are applied according to an embodiment of the present invention;
3 to 5 are views showing dimples applied to various types of pumps;
6 is a cross-sectional view showing a pump to which dimples are applied according to another embodiment of the present invention;
7 is a cross-sectional view showing an operation when reverse flow occurs in a dimple-applied pump according to another embodiment of the present invention;
8 is a cross-sectional view showing a foreign matter detection module applied to a pump to which a dimple is applied according to another embodiment of the present invention; and
9 is a cross-sectional view showing a hydraulic pressure sensing module applied to a dimple-applied pump according to another embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention in which the object of the present invention can be realized in detail will be described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same reference numeral are used for the same configuration, and additional description thereof will be omitted.

On the other hand, since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in specific contents for practicing the invention. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In addition, the terms used below are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

2 is a schematic cross-sectional view of a pump to which a dimple is applied according to an embodiment of the present invention.

As shown, the pump 100 to which dimples are applied according to an embodiment of the present invention includes a drive motor unit 130, a main motor case 120, a pump case 101, an impeller 140, and an upper motor case 134 ).

The driving motor unit 130 is provided with a rotating shaft 135 in the lower vertical direction, and forms a known technical form such that the rotating shaft 135 rotates when power is applied.

And, the main motor case 120 covers the outside of the driving motor unit 130 and is formed in a drum shape as a whole provided with the rotary shaft 135 protruding downward. Although not shown in detail, a predetermined waterproof structure is applied to the main motor case 120 so that water does not flow into the drive motor unit 130 configured inside.

The pump case 101 is installed so that the main motor case 120 and the rotating shaft 135 are concealed inside, but the flow guide 112 is symmetrical to both sides of the outer side of the main motor case 120 in cross section. ) is formed, and a lower inlet portion 111 and an upper outlet portion 113 communicating with the flow guide 112 and the outside are formed on the lower and upper portions of the pump case 101, respectively.

The overall shape of the pump case 101 except for the upper and lower portions is a cylindrical shape of a predetermined drum shape.

The impeller 140 is connected to the rotary shaft 135 at the lower side of the pump case 101 to rotate together with the rotary shaft 135, and water introduced into the lower inlet 111 along the flow guide 112 It forms a configuration to move to the upper outlet 113.

Meanwhile, according to the present embodiment, the upper motor case 134 is formed in a hemispherical shape on the upper part of the main motor case 120, and dimples 138 are applied to the surface at predetermined intervals. The dimple 138 is such that the water introduced into the pump case 101 along the flow path guide 112 flows along the surface of the upper motor case 134 to a certain area without being peeled off, so that the upper motor case 134 It serves to minimize the turbulent flow area of the water in the upper flow guide 112.

In addition, according to the present embodiment, a vortex prevention unit 150 provided at the bottom of the pump case 101 to prevent vortexes generated in water introduced through the lower inlet 111 is further provided.

In addition, a hydraulic pressure sensing unit 102 provided at a preset position inside the pump case 101 to measure the pressure of water flowing through the flow guide 112 is further provided.

As described above, according to the pump 100 to which the dimple is applied according to an embodiment of the present invention, the vortex prevention unit 150 is applied to the inside of the pump case 101 so that the lower inlet unit is rotated when the impeller 140 is rotated. By minimizing the eddy current generated in the water introduced through 111, it is possible to smoothly supply water to the lower side of the pump case 101, thereby improving overall pumping efficiency.

In addition, according to this embodiment, by applying the dimple 138 to the upper motor case 134 inside the pump case 101, water flowing along the flow guide 112 is generated around the upper motor case 134 By minimizing the turbulent flow, it is possible to improve the flow of water and thus bring about energy savings.

3 to 5 are views showing how dimples are applied to various types of pumps. As shown, the dimples (d) direct the flow of water to the flow guide 112 inside the pump case 101 of various different types. can be applied to improve

6 is a cross-sectional view showing a dimple-applied pump according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view showing a dimple-applied pump according to another embodiment of the present invention operating when reverse flow of water occurs.

The mixed flow pump 200 according to the present embodiment also covers the drive motor unit 130 provided with the rotation shaft 135 in the lower vertical direction and the drive motor unit 130 as in the above-described embodiment, and covers the rotation shaft downward. A drum-shaped main motor case 120 in which 135 protrudes, and the outer circumference of the main motor case 120 and the rotating shaft 135 is covered and wrapped around the side of the main motor case 120. 112) is formed and a pump case 101 in which a lower inlet 111 and an upper outlet 113 are formed and communicated with the flow guide 112, and provided on the rotating shaft at the lower side of the pump case to provide the flow guide An impeller 140 for moving water introduced into the lower inlet 111 along 112 to the upper outlet 113 and a hemispherical upper part of the main motor case 120, the surface It includes an upper motor case 134 to which dimples 138 are applied at predetermined intervals.

In addition, even in the case of this embodiment, a vortex prevention unit 150 is provided at the bottom of the pump case 101 to prevent vortexes generated in water introduced through the lower inlet 111.

On the other hand, according to the present embodiment, a circumferential casing 160 protrudes outward from the circumference of the pump case 101 to form a predetermined space and is formed in a drum shape as a whole except for a portion through which the pump case 101 penetrates. .

In addition, the main motor case 120 is provided with an opening 162 at predetermined intervals along the circumferential direction, and the main motor case 120 has a hinge portion 192 to the lower side of the opening 162 A closing board portion 196 is provided so as to be rotatably installed and to be opened and closed as the opening portion 162 rotates.

In addition, the hinge part 192 of the main motor case 120 is provided to rotate together with the closing board part 196, but when the closing board part 196 closes the opening part 162, the flow guide ( 112) is provided with an auxiliary board portion 194 protruding at a predetermined angle toward the side.

Here, it is preferable that the closing board part 196 and the auxiliary board part 194 are integrally formed so as to rotate together around the hinge part 192.

In addition, the closing board part 196 and the auxiliary board part 194 contact the outside of the main motor case 120 at the same time when rotating so that the opening part 162 is opened around the hinge part 192 While being rotated, the elastic board part 122 made of a flexible material so that the upper ends of the closing board part 196 and the auxiliary board part 194 elastically come into contact with the outside of the main motor case 120 It is provided along the circumference of the main motor case 120.

In addition, a stopper 164 preventing the closing board portion 196 from entering into the space portion of the circumferential casing 160 is provided on the upper portion of the pump case 101 on the open portion 162 side.

At this time, the stopper 164 is made of a magnetic material and the closing board part 196 is made of a metal material, and the stopper 164 and the closing board part 196 are made of a hinge part 192 only when a predetermined external force acts. ) is configured so that the closing board portion 196 is rotated and separated.

On the other hand, on one side of the circumferential casing 160, a discharge pipe 167 communicating the inner space and the outside of the circumferential casing 160 is provided, and an opening/closing valve 168 for opening and closing the discharge pipe 167 is provided.

In the mixed flow pump 200 according to the present embodiment configured as described above, when water flows from the lower inlet 111 to the upper outlet 113 as shown in FIG. 6, the auxiliary board 194 moves upward. While rotating, the closing board 196 closes the opening 162 and the introduced water flows along the flow guide 112 .

Conversely, when the driving motor unit 130 stops operating, water flows backward from the upper side to the lower side. In this case, while rotating the auxiliary board unit 194 downward, the closing board unit 196 also rotates downward. The upper portion of the closing board portion 196 is in contact with the elastic board portion 122 to form a state in which a partial area of the flow guide 112 is closed.

In this case, a considerable amount of water flows into the circumferential casing 160 through the opening 162, and when water flows into the circumferential casing 160, the opening/closing valve 168 of the discharge pipe 167 is operated. By doing so, the water introduced into the circumferential casing 160 can be discharged through the discharge pipe 167.

In addition, the mixed flow pump 200 according to the present embodiment forms a form of communicating with the flow guide 112 from the outside to the upper side of the pump case 101, and the foreign matter detection module 170 detachably installed in the pump case 101 ) and a hydraulic pressure sensing module 180 are provided.

Hereinafter, the foreign matter detection module 170 and the oil pressure detection module 180 will be described.

8 is a cross-sectional view showing a foreign matter detection module applied to a pump to which a dimple is applied according to another embodiment of the present invention.

The foreign matter detection module 170 is installed with the same curvature on the inner surface of the flow guide 112 when it is fixed by screwing so that it is completely installed in the pump case 101, and a thread is formed on the inner circumferential surface in the vertical direction. A foreign material sensing bolt part 171 having a through part 172 formed thereon, a head part 173 integrally formed on the upper part of the foreign material sensing bolt part 171, and a foreign material sensing threaded through the through part 172 The inner bolt part 174, the inner bolt head part 175 provided on the upper part of the foreign matter sensing inner bolt part 174, and the lower part of the foreign matter sensing bolt part 171 on the lower side of the foreign matter sensing inner bolt part 174 It is configured to include a foreign matter adsorption portion 176 provided to be exposed to.

That is, one side of the pump case 101 is provided with a screw hole communicating to the flow guide 112, and the foreign matter detection bolt part 171 is screwed to the screw hole.

In addition, the foreign matter adsorbing part 176 may be made of a material such as a sponge to which foreign substances or water stains contained in water easily adhere.

In the foreign matter detection module 170, the user can screw the foreign matter detection internal bolt part 174 out from the foreign matter detection bolt part 171 at regular intervals or according to circumstances and take it out.

In this case, the degree of foreign matter adsorbed to the foreign matter adsorption unit 176 is determined, and when it is determined that a significant amount of foreign matter is adsorbed, the foreign matter detection bolt part 171 is entirely removed from the pump case 101, and then the flow guide ( 112) to perform internal cleaning, etc.

At this time, it is preferable that the inner surface of the flow guide 112 is coated with a material that easily reflects light so that it is easy to grasp the inside of the flow guide 112 in a state where a predetermined lamp is put inside the flow guide 112.

9 is a cross-sectional view showing a hydraulic pressure sensing module applied to a dimple-applied pump according to another embodiment of the present invention.

The hydraulic pressure sensing module 180 includes a hydraulic pressure sensing bolt part 181 installed at an upper side of the pump case 101 so that its end is exposed to the flow path guide 112, and a hydraulic pressure sensing bolt part 181 provided on the upper side. It includes a sensing head part 182.

The oil pressure sensing bolt part 181 is provided with a first through part 183 in a vertically penetrating form, and a second through part 183 is provided in the head part 182 in a form in communication with the first through part 183 vertically. A section 184 is provided. Here, the diameter of the first through part 183 is made larger than the diameter of the second through part 184 .

In addition, the oil pressure sensing module 180 according to the present embodiment has an indicator rod 185 moving up and down along the second through part 184 and a size corresponding to the diameter of the first through part 183. A pressing portion 187 that moves up and down inside the first through portion 183 is provided. Here, the indicating rod part 185 and the pressing part 187 are integrally formed.

And, as shown, in the pressing part 187, the coil spring 188 is applied between the upper side of the pressing part 187 and the closed part of the upper side of the first through part 183, so that the pressing part 187 moves upward. It is configured to move by a predetermined external force and return to its original position when the external force is removed.

In addition, indicator portions 185a, 185b, and 185c made of different colors are applied to the upper end of the indicator rod portion 185 at predetermined intervals, and the degree of exposure of the indicator portion corresponding to the outside of the oil pressure sensing head portion 182 is applied. It is possible to check the hydraulic pressure of water flowing in the flow guide 112 acting on the pressurizing part 187 by using.

As described above, according to the pump 200 to which the dimple is applied according to another embodiment of the present invention, the vortex prevention part 150 is applied to the inside of the pump case 101 as in the above-described embodiment, so that the lower inlet part 111 ), it is possible to efficiently improve the pumping efficiency by minimizing the vortex generated in the inflowing water.

In addition, by applying the dimple 138 to the upper motor case 134 inside the pump case 101, the water flowing along the flow guide 112 minimizes the turbulence generated around the upper motor case 134, thereby reducing the flow of water It can improve the flow and thus bring about energy savings.

In addition, by applying the indicator rod portion 185 exposed to the outside along the flow guide 112 on one side of the pump case 101, the effect of easily detecting the hydraulic pressure of water flowing inside the pump visually from the outside brings

Furthermore, by applying the foreign matter detection module 170 inserted into the flow guide 112 on one side of the pump case 101 and selectively drawn out, the degree of adsorption of foreign substances on the inner surface of the flow guide 112 is easily grasped, It brings the effect of enabling the cleaning of the inside of the flow guide 112 in a timely manner.

Those skilled in the art to which the present invention described above belongs will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the above-described embodiments should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention.

100: mixed flow pump
101: pump case
111: lower inlet
112: Euroguide
113: upper outlet
120: main motor case
130: drive motor unit
134: upper motor case
135: axis of rotation
138 dimple
140: impeller
150: vortex prevention unit

Claims (3)

A driving motor unit provided with a rotation shaft in the lower vertical direction; a drum-shaped main motor case covering and covering the drive motor and protruding the rotating shaft downward; A pump case having a flow guide formed on the side of the main motor case and a lower inlet and an upper outlet formed in communication with the flow guide and wrapped around the outer circumference of the main motor case and the rotating shaft; an impeller provided on the rotating shaft at the lower side of the pump case to move the water flowing into the lower inlet part along the flow path guide to the upper outlet part; and an upper motor case formed in a hemispherical shape on an upper portion of the main motor case and having dimples applied to the surface at predetermined intervals. A foreign matter detection module formed on the upper side of the pump case and connected to the flow path guide from the outside and detachably installed in the pump case;
When the foreign matter detection module is installed in the pump case, the lower end has the same curvature as the inner surface of the flow guide, and at the same time, a foreign matter detection bolt part having a threaded through portion formed on the inner circumferential surface in the vertical direction, and a foreign matter detection bolt part on the top of the foreign matter detection bolt part A head part integrally formed, a foreign matter sensing inner bolt part penetrated through the through part and screwed together, an inner bolt head part provided above the foreign matter sensing inner bolt part, and a foreign matter provided below the foreign matter sensing inner bolt part Including an adsorption unit,
One side of the pump case is provided with a screw hole communicating to the flow guide, and the foreign matter detection bolt is screwed to the screw hole.
Pumps with dimples. According to claim 1,
A vortex prevention unit provided at the bottom of the pump case to prevent vortex flow of water introduced through the lower inlet is further provided.
Pumps with dimples. According to claim 1,
A hydraulic pressure sensing unit provided inside the pump case to measure the pressure of water flowing through the flow path guide is further provided,
Pumps with dimples.

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