KR20210008631A - An impeller unit for underwater pump - Google Patents

An impeller unit for underwater pump Download PDF

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Publication number
KR20210008631A
KR20210008631A KR1020190084987A KR20190084987A KR20210008631A KR 20210008631 A KR20210008631 A KR 20210008631A KR 1020190084987 A KR1020190084987 A KR 1020190084987A KR 20190084987 A KR20190084987 A KR 20190084987A KR 20210008631 A KR20210008631 A KR 20210008631A
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KR
South Korea
Prior art keywords
impeller
shaft support
coupled
unit
center
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KR1020190084987A
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Korean (ko)
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안재권
안기현
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안재권
안기현
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Priority to KR1020190084987A priority Critical patent/KR20210008631A/en
Publication of KR20210008631A publication Critical patent/KR20210008631A/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F04D29/242—Geometry, shape
    • F04D29/245—Geometry, shape for special effects
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors

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

Abstract

The present invention relates to an impeller unit for an underwater pump. An objective of the present invention is to provide an impeller unit for an underwater pump which improves the configuration of a lower portion of an impeller to perform pumping without a load even if foreign substances such as sand enter the impeller, and minimizes starting faults, durability degradation, and frictional loss to provide pumping in an optimal state at all times. According to the present invention, the impeller unit for an underwater pump comprises: an impeller housing having a hole formed in the middle of the bottom thereof; an impeller seated on the upper side of the bottom of the impeller housing and provided with a shaft support unit formed on the upper side thereof and allowing a driveshaft to be coupled thereto; a thrust inserted into the shaft support unit; and a diffuse cover wherein a seal coupled to the shaft support unit above the thrust is coupled to the center thereof, and the outer circumference thereof is coupled to the impeller housing. The impeller has vanes formed below an upper panel, the shaft support unit protruding upward and downward and formed at the center, and a lower panel affixed and fixed below the vanes and provided with an inlet of the same diameter as the hole of the impeller housing at the center. The lower panel is provided with a protruding ring formed along the inlet and a plurality of foreign substance discharge vanes formed in a spiral shape on the outside of the protruding ring.

Description

수중펌프용 임펠러 유닛{An impeller unit for underwater pump}An impeller unit for underwater pump}

본 발명은 수중펌프용 임펠러 유닛에 관한 것으로서, 보다 구체적으로는 임펠러의 하부 구성을 개량하여 모래 등의 이물이 유입되더라도 부하 없이 펌핑이 이루어질 수 있도록 한 것으로, 기동불량, 내구성 저하, 마찰손실을 최소화하여 항상 최적의 상태로 펌핑을 제공할 수 있도록 한 수중펌프용 임펠러 유닛을 제공코자 한 것이다.The present invention relates to an impeller unit for a submersible pump, and more specifically, by improving the lower configuration of the impeller, the pumping can be performed without load even if foreign matter such as sand is introduced, and poor start-up, decrease in durability, and minimize friction loss Therefore, it is intended to provide an impeller unit for a submersible pump that can always provide pumping in an optimal state.

지하수 등을 지상으로 펌핑하기 위해 펌프를 사용하고 있으며, 대표적인 펌프 중 하나가 수중펌프이다. A pump is used to pump groundwater to the ground, and one of the representative pumps is a submersible pump.

수중펌프는 임펠러 케이싱 내부에 복수의 임펠러 유닛을 설치하고, 임펠러 케이싱의 하측으로 이물질이 유입되는 것을 차단하는 스트레이너를 결합하고, 스트레이너의 하측으로는 임펠러 케이싱 내에 적층 상태로 설치되어 있는 임펠러 유닛을 일괄적으로 구동하는 구동모터를 설치한 구성으로 이루어진다.In the submersible pump, a plurality of impeller units are installed inside the impeller casing, and a strainer that blocks foreign substances from flowing into the lower side of the impeller casing is combined, and the impeller units installed in a stacked state in the impeller casing are collectively installed under the strainer. It consists of a configuration in which a drive motor that is driven individually is installed.

상기한 구성의 수중모터는 임펠러 케이싱에 적층되는 임펠러 유닛의 수량에 의해 압상고가 결정되고, 직경에 따라 펌핑량이 결정된다.In the underwater motor of the above configuration, the rolling height is determined by the number of impeller units stacked on the impeller casing, and the pumping amount is determined according to the diameter.

수중펌프에서 중요부품인 임펠러 유닛은 다양한 구성으로 제공되고 있으며, 대표적인 예로는 대한민국 등록실용신안공보(Y1)20-0119717호(1998.07.15.)의 수중펌프용 임펠러 유니트가 게시되고 있으며, 그 구성은 하부에 설치되는 모터의 샤프트상에 축삽되고 펌프케이싱 상에 다단으로 다수개가 조립되어 지하수 등을 펌핑할 수 있는 수중펌프용 임펠러유니트에 있어서; 상기 임펠러유니트의 임펠러케이싱 저부에는 이웃하는 임펠러유니트의 착탈캡상의 유로에 끼움조립되어 샤프트 회전시 각각의 임펠러유니트간의 슬립을 방지될 수 키이를 하나 이상 형성하며; 상기 임펠러유니트의 임펠러케이싱내에 조립되는 다수개의 베인을 가진 임펠러의 하단 외연부에는 펌핑되는 유체를 외단부에서 만곡형으로 회절되게 토출하는 소정의 테이퍼각(α)을 형성한 것이다.The impeller unit, which is an important part of the submersible pump, is provided in various configurations, and as a representative example, the impeller unit for submersible pump of the Korean Utility Model Publication (Y1)20-0119717 (1998.07.15.) is posted, and its configuration In the impeller unit for a submersible pump capable of pumping groundwater and the like by being axially inserted on the shaft of the motor installed at the bottom and assembled in multiple stages on the pump casing; At the bottom of the impeller casing of the impeller unit, one or more keys are formed to be fitted into the flow path on the detachable cap of the adjacent impeller unit to prevent slip between each impeller unit when the shaft is rotated; A predetermined taper angle α is formed on the lower outer periphery of the impeller having a plurality of vanes assembled in the impeller casing of the impeller unit so that the pumped fluid is diffracted from the outer end to be curved.

다른 예로는 대한민국 등록실용신안공보(Y1)20-0179820호(2000.04.15.)의 수중펌프용 임펠러 유니트가 게시되고 있으며, 그 구성은 통상의 수중펌프용 임펠러 유니트에 있어서; 상기 임펠러 유니트를 구성하는 가이드밴의 축공에는 씨일을 개재하고, 상기 씨일과 연접하는 임펠러 하부에는 보강링을 일체로 형성하며; 상기 임펠러와 이의 상부에 결합되는 제트커버 상간에는 스러스트판을 개재시키고; 상기 제트커버의 축공에는 상하로 단턱을 갖는 씨일을 강제끼움식으로 결합시키되, 상기 씨일은 축공상에서 미세유격을 갖도록 구성한 것이다.As another example, the impeller unit for a submersible pump of Republic of Korea Utility Model Publication (Y1)20-0179820 (2000.04.15.) is posted, and its configuration is in a conventional impeller unit for a submersible pump; A seal is interposed in the shaft hole of the guide van constituting the impeller unit, and a reinforcing ring is integrally formed under the impeller connected to the seal; A thrust plate is interposed between the impeller and the jet cover coupled to the upper portion thereof; A seal having a stepped up and down is coupled to the shaft hole of the jet cover by a force-fitting method, and the seal is configured to have a micro clearance on the shaft hole.

이러한 종래 임펠러 유니트의 경우 임펠러와 가이드밴 상간에 개재된 씨일은 모래 등이 끼였을 경우 2중 기동을 가능케 하는 등의 효과가 있다.In the case of such a conventional impeller unit, the seal interposed between the impeller and the guide van phase has an effect such as enabling a double maneuver when sand or the like is caught.

그러나 상기한 임펠러 유니트의 경우 임펠러 하측으로 결합되어 있는 보강링이 가이드밴에 형성된 구멍 내에 위치하는 형상이 되는데, 이때 구멍과 보강링 사이에 모래와 같은 이물이 걸린 경우 임펠러 유니트의 기동불량이 발생하게 되고, 마찰손실로 펌핑력이 저하되는 등의 문제점이 발생하며 경우에 따라서 고장의 원인이 되기도 하였다.However, in the case of the above-described impeller unit, the reinforcing ring coupled to the lower side of the impeller is located in the hole formed in the guide van.At this time, if a foreign matter such as sand is caught between the hole and the reinforcing ring, the impeller unit may malfunction. In addition, a problem such as a decrease in pumping power due to friction loss occurs, and in some cases, it may cause failure.

KR 200119717 Y1 1998.07.15.KR 200119717 Y1 1998.07.15. KR 200179820 Y1 2000.04.15.KR 200179820 Y1 2000.04.15.

이에 본 발명자는 상기한 종래 임펠러 유닛이 갖는 제반 문제점을 해결하고자 본 발명을 연구 개발한 것이다.Accordingly, the present inventor has researched and developed the present invention to solve the problems of the conventional impeller unit.

즉, 본 발명에서는 임펠러 하측으로 임펠러 하우징의 내부 바닥면과 면접하는 돌환테에 이물배출베인을 형성하여 임펠러 하우징과 임펠러 사이로 유입될 수 있는 모래 등의 이물을 효과적으로 배출할 수 있도록 하여 기동불량, 내구성 저하, 마찰손실을 최소화함으로써 임펠러의 기능성을 향상과 펌핑 능력을 향상을 제공할 수 있도록 한 수중펌프용 임펠러 유닛을 제공함에 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.In other words, in the present invention, a foreign matter discharge vane is formed on the bulging frame that interviews the inner bottom surface of the impeller housing below the impeller to effectively discharge foreign matter such as sand that may flow between the impeller housing and the impeller. The present invention has been completed with the technical problem of the present invention in providing an impeller unit for a submersible pump capable of providing an improvement in the functionality and pumping ability of the impeller by minimizing the reduction and friction loss.

과제 해결 수단으로 본 발명에서는 바닥 중심으로 구멍이 형성된 임펠러 하우징과, 임펠러 하우징의 바닥 상측으로 안치되며 구동축이 결합되는 축지부를 상측으로 형성한 임펠러와, 상기 축지부에 끼워지는 스러스트와, 상기 스러스트 상측으로 축지부와 결합되는 씰이 중심이 결합되며 외주연이 임펠러 하우징에 결합되는 디퓨즈커버를 포함하되;In the present invention as a means of solving the problem, in the present invention, an impeller housing having a hole formed in the center of the bottom, an impeller having an upper end of the bottom of the impeller housing and forming a shaft supporting portion to which the driving shaft is coupled upward, a thrust fitted to the shaft supporting portion, and the thrust And a diffuse cover in which the center of the seal coupled to the shaft support portion is coupled to the upper side and the outer periphery is coupled to the impeller housing;

상기 임펠러는 상부패널 하측으로 베인을 형성하고, 중심에 상하측으로 돌출된 축지부를 형성하며, 상기 베인의 하측에는 중심에 임펠러 하우징의 구멍과 동일한 직경의 흡입구가 형성된 하부패널을 접착 고정하되; The impeller has a vane formed at a lower side of the upper panel, and a shaft support protruding upwardly and downwardly at a center thereof, and a lower panel having a suction port having the same diameter as the hole of the impeller housing is adhered and fixed at the lower side of the vane;

상기 하부패널에는 흡입구를 따라 돌환테를 형성하고, 돌환테의 바깥쪽으로는 나선형으로 복수의 이물배출베인을 형성한 것을 특징으로 한다.The lower panel is characterized in that a dolfan frame is formed along the suction port, and a plurality of foreign matter discharge vanes are formed in a spiral shape outside the dolfan frame.

또한, 본 발명은 상기 임펠러에 형성된 축지부가 돌환테 바깥쪽으로 돌출되지 않는 높이로 형성하고, 임펠러의 축지부와 임펠러 하우징에 형성된 구멍 사이에 이물이 끼이는 것을 방지할 수 있도록 한 것을 특징으로 한다.In addition, the present invention is characterized in that the shaft support part formed on the impeller is formed at a height that does not protrude outward from the protrusion frame, and it is characterized in that it is possible to prevent foreign matters from being pinched between the shaft support part of the impeller and the hole formed in the impeller housing. .

본 발명에서 제공하는 수중펌프용 임펠러 유닛을 사용하는 경우 하기와 같은 효과가 있다.When using the impeller unit for a submersible pump provided in the present invention has the following effects.

-임펠러의 하측으로 임펠러 하우징과 면접하도록 돌환테 및 이물배출베인이 형성되며, 임펠러에 형성된 축지부가 돌환테 외부로 노출되지 않으므로, 임펠러 하우징에 형성된 구멍을 통해서 모래 등의 이물이 내입되더라도 이물배출베인을 통해서 신속하게 배출되므로 기동불량을 현저히 줄일 수 있다.-The protrusion frame and the foreign matter discharge vane are formed to the lower side of the impeller to interview the impeller housing, and the shaft support part formed in the impeller is not exposed to the outside of the protrusion frame. Since it is quickly discharged through the vane, it is possible to significantly reduce the malfunction.

-내구성 향상을 기대할 수 있으며, 마찰손실을 최소화할 수 있어 펌핑능력 향상과, 과부하로 인해 모터가 손상되는 등의 문제점을 해결할 수 있는 효과가 있다.-Durability improvement can be expected, and friction loss can be minimized, improving pumping ability and solving problems such as motor damage due to overload.

도 1은 본 발명에서 제공하는 수중펌프용 임펠러 유닛의 바람직한 일 실시례를 보인 사시도
도 2는 도 1의 분해 사시도
도 3은 본 발명에 적용된 임펠러의 저면 사시도
도 4는 본 발명 수중펌프용 임펠러 유닛의 조립상태 단면도1 is a perspective view showing a preferred embodiment of an impeller unit for a submersible pump provided by the present invention
2 is an exploded perspective view of FIG. 1
3 is a bottom perspective view of an impeller applied to the present invention
Figure 4 is a cross-sectional view of an assembled state of the impeller unit for a submersible pump

이하 본 발명에서 제공하는 수중펌프용 임펠러 유닛의 바람직한 실시례를 첨부 도면에 의거하여 설명한다.Hereinafter, a preferred embodiment of the impeller unit for a submersible pump provided by the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에서 제공하는 수중펌프용 임펠러 유닛의 바람직한 일 실시례를 보인 사시도를 도시한 것이고, 도 2는 도 1의 분해 사시도, 도 3은 본 발명에 적용된 임펠러의 저면 사시도, 도 4는 본 발명 수중펌프용 임펠러 유닛의 조립상태 단면도를 각각 도시한 것이다.1 is a perspective view showing a preferred embodiment of the impeller unit for a submersible pump provided in the present invention, Figure 2 is an exploded perspective view of Figure 1, Figure 3 is a bottom perspective view of the impeller applied to the present invention, Figure 4 The present invention shows a cross-sectional view of the assembled state of the impeller unit for a submersible pump, respectively.

일반적으로 사용하는 수중펌프는 임펠러 케이싱 내부에 복수의 임펠러 유닛을 설치하고, 임펠러 케이싱의 하측으로 이물질이 유입되는 것을 차단하는 스트레이너를 결합하고, 스트레이너의 하측으로는 임펠러 케이싱 내에 적층 상태로 설치되어 있는 임펠러 유닛을 일괄적으로 구동하는 구동모터를 설치한 구성으로 이루어진다.A commonly used submersible pump is to install a plurality of impeller units inside the impeller casing, combine a strainer to block the inflow of foreign substances to the lower side of the impeller casing, and install a stacked state in the impeller casing at the lower side of the strainer. It consists of a configuration in which a drive motor that drives the impeller unit collectively is installed.

본 발명에서 제공하는 수중펌프용 임펠러 유닛(1)은 상기에 설명한 바와 같이 임펠러(3) 케이싱 내에 적층되는 부재로서, 내부식성이 우수한 스테인리스로 구성되는 임펠러 하우징(2)과, 임펠러 하우징(2)에 결합되는 임펠러(3) 및 디퓨즈커버(4)로 대분된다.The impeller unit 1 for a submersible pump provided by the present invention is a member stacked in the casing of the impeller 3 as described above, and an impeller housing 2 made of stainless steel having excellent corrosion resistance, and an impeller housing 2 It is largely divided into an impeller (3) and a diffuse cover (4) coupled to.

상기 임펠러 하우징(2)은 바닥에 구멍(2a)이 천공되어 용수 유입이 이루어질 수 있도록 하고, 상측으로는 개구된 형태의 원통형상으로 이루어진다.The impeller housing 2 has a hole 2a perforated in the bottom so that water can be introduced, and has an open cylindrical shape on the upper side.

임펠러(3)는 중앙에 축지부(3a)가 형성된 상태로 임펠러 하우징(2)의 바닥과 접하도록 설치된다. 이때 축지부(3a)에는 축공이 형성되며, 다각형 구동축이 결합되도록 하여 별도의 키결합 없이 동력 전달이 가능하게 구성한다. The impeller 3 is installed so as to contact the bottom of the impeller housing 2 with the shaft support 3a formed at the center thereof. At this time, a shaft hole is formed in the shaft support portion 3a, and a polygonal drive shaft is coupled so that power can be transmitted without a separate key coupling.

그리고 디퓨즈커버(4)는 임펠러(3)에 의해 펌핑된 용수가 임펠러 하우징(2)을 따라 상승하는 것을 상향으로 유도 배출하는 부재이며, 유입되는 용수를 와류 유도하는 유도편(4a)이 나선형으로 형성되며, 임펠러 하우징(2)에 끼워지는 끼움부(4b)가 형성되고, 그 상측으로 걸림테(4c)를 형성한 구성을 갖는다.In addition, the diffuse cover 4 is a member that guides and discharges the water pumped by the impeller 3 upward along the impeller housing 2, and the guide piece 4a for guiding the incoming water vortex is spirally formed. It is formed, has a configuration in which a fitting portion (4b) to be fitted into the impeller housing (2) is formed, and a locking frame (4c) is formed on the upper side thereof.

이때 임펠러(3)의 측지부에는 스러스트(5)가 결합되며, 디퓨즈커버(4)에는 축지부(3a)와 결합되는 씰(6)이 억지끼움식으로 결합되어 마찰손실 및 압력손실을 에방할 수 있도록 구성된다.At this time, the thrust (5) is coupled to the lateral portion of the impeller (3), and the seal (6) coupled to the shaft (3a) is coupled to the diffuse cover (4) in a force-fitting manner to prevent friction and pressure loss. It is structured to be able to.

상기한 구성은 임펠러 유닛(1)의 기본적 구성이며, 본 발명에서는 특히 임펠러(3)의 구성을 개량하여 임펠러 하우징(2)과 임펠러(3) 사이에 모래가 끼여 발생하는 기동불량 등의 문제점이 해결되도록 구성한다.The above configuration is a basic configuration of the impeller unit 1, and in the present invention, in particular, by improving the configuration of the impeller 3, there is a problem such as poor start-up caused by sand trapped between the impeller housing 2 and the impeller 3 Organize to be resolved.

이를 위한 본 발명의 임펠러(3)는 상부패널(3b) 하측으로 베인(3c)을 일체형으로 형성하고, 중심에 상하측으로 돌출되게 축지부(3a)를 일체형으로 형성하며, 상기 베인(3c)의 하측에는 중심에 임펠러 하우징(2)의 구멍(2a)과 동일한 직경의 흡입구(3e)가 형성된 하부패널(3d)을 별도로 형성하여 접착 고정한다.For this purpose, the impeller 3 of the present invention integrally forms a vane 3c under the upper panel 3b, and integrally forms the shaft support 3a so as to protrude upward and downward in the center, and the vane 3c On the lower side, a lower panel 3d in which a suction port 3e having the same diameter as the hole 2a of the impeller housing 2 is formed in the center is formed separately and adhered and fixed.

이때 하부패널(3d)에는 흡입구(3e)를 따라 돌환테(3f)를 형성하고, 돌환테(3f)의 바깥쪽으로는 나선형으로 복수의 이물배출베인(3g)을 형성한다.At this time, the lower panel 3d is formed with a protrusion frame 3f along the suction port 3e, and a plurality of foreign matter discharge vanes 3g are formed in a spiral shape outside the protrusion frame 3f.

그리고 상기 임펠러(3)에 형성된 축지부(3a)가 돌환테(3f) 바깥쪽으로 돌출되지 않는 높이로 형성하여 임펠러(3)의 축지부(3a)와 임펠러 하우징(2)에 형성된 구멍(2a) 사이에 이물이 끼이는 것을 방지할 수 있도록 한다.And the shaft support portion 3a formed in the impeller 3 is formed at a height that does not protrude outward of the protrusion frame 3f, and the shaft support portion 3a of the impeller 3 and the hole 2a formed in the impeller housing 2 Prevent foreign objects from getting caught between them.

상기와 같이 임펠러(3)를 구성한 상태에서 모터를 이용하여 임펠러(3)를 구동하게 되면, 임펠러 하우징(2)에 형성된 구멍(2a)으로 공급되는 용수가 하부패널(3d)의 중심으로 향상된 흡입구(3e)로 유입되고, 상부패널(3b)과 하부패널(3d) 사이의 베인(3c)을 통해서 펌핑이 이루어진다.When the impeller 3 is driven using a motor while the impeller 3 is configured as described above, the water supplied to the hole 2a formed in the impeller housing 2 is improved toward the center of the lower panel 3d. It flows into (3e), and is pumped through the vane (3c) between the upper panel (3b) and the lower panel (3d).

이때 임펠러(3)는 원심력과 용수의 펌핑 이동방향에 의해 상향으로 조금 들려 임펠러 하우징(2)과 하부패널(3d)이 이격되는 현상이 발생되고, 이 틈새로 모래 등의 이물이 내입될 수 있으나, 본 발명에서는 하부패널(3d)에 돌환테(3f)를 형성하고 그 바깥쪽으로는 나선형으로 복수의 이물배출베인(3g)을 형성한 구성을 제공하고 있으므로, 유입된 이물을 신속하게 외부로 펌핑 배출하게 되므로 이물이 끼이는 등의 문제점을 해결할 수 있는 것이다.At this time, the impeller 3 is slightly lifted upwards due to the centrifugal force and the pumping movement direction of the water, so that the impeller housing 2 and the lower panel 3d are separated from each other, and foreign substances such as sand may enter through the gap. , Since the present invention provides a configuration in which a stone ring frame (3f) is formed on the lower panel (3d) and a plurality of foreign matter discharge vanes (3g) are formed in a spiral outside the lower panel (3d), the introduced foreign matter is quickly pumped to the outside. Since it is discharged, it is possible to solve problems such as foreign matter being caught.

또한 이물배출베인(3g)이 임펠러(3) 내측의 베인(3c)과 함께 펌핑 기능성을 수행하여 펌핑력을 향상시키게 되는 것이다.In addition, the foreign material discharge vane (3g) is to improve the pumping power by performing a pumping function together with the vane (3c) inside the impeller (3).

따라서 본 발명에서 제공하는 수중펌프용 임펠러 유닛(1)에 의하면, 이물이 끼여 발생할 수 있는 기동불량 해소는 물론이고, 펌핑력 향상등을 함께 제공할 수 있는 것이다.Therefore, according to the impeller unit 1 for a submersible pump provided by the present invention, it is possible to provide not only the elimination of malfunctions that may occur due to foreign substances, but also improvement of pumping power.

본 발명의 상세한 설명에서는 구체적인 실시례에 관해 설명하고 있으나, 본 발명의 범주에서 벗어나지 않는 한도 내에서 다양한 변형이 가능함은 물론이다. 그러므로 본 발명의 보호 범위는 설명된 실시례에 국한되어 정해져서는 안 되며, 후술하는 청구범위 뿐만 아니라 균등한 것들에 의해 정해져야 한다.In the detailed description of the present invention, specific embodiments are described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of protection of the present invention should not be defined by being limited to the described embodiments, and should not be determined by the claims to be described later as well as equivalents.

1:(수중펌프용) 임펠러 유닛 2:임펠러 하우징
2a:구멍 3:임펠러
3a:축지부 3b:상부패널
3c:베인 3d:하부패널
3e:흡입구 3f:돌환테
3g:이물배출베인 4:디퓨즈커버
4a:유도편 4b:끼움부
4c:걸림테 5:스러스트
6:씰1: (for submersible pump) impeller unit 2: impeller housing
2a: hole 3: impeller
3a: shaft part 3b: upper panel
3c: vane 3d: lower panel
3e: inlet 3f: dolfante
3g: foreign matter discharge vane 4: diffuse cover
4a: guide piece 4b: fitting
4c: jamming frame 5: thrust
6: Seal

Claims (2)

바닥 중심으로 구멍(2a)이 형성된 임펠러 하우징(2)과, 임펠러 하우징(2)의 바닥 상측으로 안치되며 구동축이 결합되는 축지부(3a)를 상측으로 형성한 임펠러(3)와, 상기 축지부(3a)에 끼워지는 스러스트(5)와, 상기 스러스트(5) 상측으로 축지부(3a)와 결합되는 씰(6)이 중심이 결합되며 외주연이 임펠러 하우징(2)에 결합되는 디퓨즈커버(4)를 포함하되;
상기 임펠러(3)는 상부패널(3b) 하측으로 베인(3c)을 형성하고, 중심에 상하측으로 돌출된 축지부(3a)를 형성하며, 상기 베인(3c)의 하측에는 중심에 임펠러 하우징(2)의 구멍(2a)과 동일한 직경의 흡입구(3e)가 형성된 하부패널(3d)을 접착 고정하되;
상기 하부패널(3d)에는 흡입구(3e)를 따라 돌환테(3f)를 형성하고, 돌환테(3f)의 바깥쪽으로는 나선형으로 복수의 이물배출베인(3g)을 형성한 것을 특징으로 하는 수중펌프용 임펠러 유닛.
An impeller housing (2) having a hole (2a) formed in the center of the bottom, and an impeller (3) having a shaft support portion (3a) which is placed on the upper side of the bottom of the impeller housing (2) and is coupled to the drive shaft, and the shaft support portion A diffuse cover in which the center of the thrust 5 fitted into (3a) and the seal 6 coupled with the shaft support portion 3a above the thrust 5 is coupled and the outer periphery is coupled to the impeller housing (2) Including 4);
The impeller 3 has a vane 3c formed at a lower side of the upper panel 3b, a shaft support 3a protruding upward and downward at the center, and an impeller housing 2 at the center at the lower side of the vane 3c. A lower panel 3d having a suction port 3e having the same diameter as that of the hole 2a is adhered and fixed;
The lower panel (3d) is formed with a stone ring frame (3f) along the suction port (3e), and a plurality of foreign matter discharge vanes (3g) are formed in a spiral shape outside the stone ring frame (3f). For impeller unit.
 청구항 1에 있어서;
상기 임펠러(3)에 형성된 축지부(3a)가 돌환테(3f) 바깥쪽으로 돌출되지 않는 높이로 형성하여 임펠러(3)의 축지부(3a)와 임펠러 하우징(2)에 형성된 구멍(2a) 사이에 이물이 끼이는 것을 방지할 수 있도록 한 것을 특징으로 하는 수중펌프용 임펠러 유닛.The method according to claim 1;
The shaft support portion 3a formed in the impeller 3 is formed at a height that does not protrude outward of the protrusion frame 3f, and between the shaft support portion 3a of the impeller 3 and the hole 2a formed in the impeller housing 2 Impeller unit for a submersible pump, characterized in that to prevent foreign matters from getting caught in the.
KR1020190084987A 2019-07-15 2019-07-15 An impeller unit for underwater pump KR20210008631A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0119717Y1 (en) 1996-01-20 1998-07-15 오완식 Impellar unit using pump
KR200179820Y1 (en) 1999-11-02 2000-04-15 안재권 An impeller unit for underwater pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0119717Y1 (en) 1996-01-20 1998-07-15 오완식 Impellar unit using pump
KR200179820Y1 (en) 1999-11-02 2000-04-15 안재권 An impeller unit for underwater pump

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