KR100540381B1 - Impeller for Self-priming Pump - Google Patents

Impeller for Self-priming Pump Download PDF

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Publication number
KR100540381B1
KR100540381B1 KR1020040037565A KR20040037565A KR100540381B1 KR 100540381 B1 KR100540381 B1 KR 100540381B1 KR 1020040037565 A KR1020040037565 A KR 1020040037565A KR 20040037565 A KR20040037565 A KR 20040037565A KR 100540381 B1 KR100540381 B1 KR 100540381B1
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South Korea
Prior art keywords
impeller
self
rotary
priming pump
blade
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KR1020040037565A
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Korean (ko)
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KR20050112466A (en
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박홍배
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박홍배
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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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing 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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/02—Self-priming pumps
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Abstract

본 발명은 자흡식 펌프용 임펠러에 관한 것으로서, 중앙부에 형성된 보스를 중심으로 소정의 경사각도를 갖고 나선형을 이루며 하부로 연장되는 다수개의 제 1회전날개와; 상기 제 1회전날개를 감싸며 돌출 형성된 전방 회전판과; 상기 전방 회전판과 일체로 형성되어, 소정 높이의 외측 둘레에는 제 1회전날개로부터 연장되어 다수개로 구획된 배출부가 형성되고, 그 후면에는 소정 두께의 돌기부가 형성되는 후방 회전판과; 상기 전방 회전판의 외주면에는 방사상으로 나선형을 이루며 동일한 높이를 갖고 상기 후방 회전판의 전면과 밀착되어 구비되는 제 2회전날개를 포함하는 것을 특징으로 한다.The present invention relates to an impeller for a self-priming pump, comprising: a plurality of first rotating vanes extending downward in a spiral shape with a predetermined inclination angle about a boss formed in a central portion; A front rotary plate formed to surround the first rotary blade and protrude; A rear rotary plate which is integrally formed with the front rotary plate, and has a plurality of discharge parts extending from the first rotary blade around the outer circumference of a predetermined height, and a protrusion having a predetermined thickness formed on a rear surface thereof; The outer circumferential surface of the front rotating plate is characterized in that it comprises a second rotating blade which is radially helical and has the same height and is in close contact with the front surface of the rear rotating plate.

본 발명에 따른 자흡식 펌프용 임펠러에 의하면, 소정의 경사각도를 갖는 나선형의 회전날개를 이중으로 구비함으로써, 동일한 구동력으로도 더욱 빠른 회전력을 얻을 수 있고, 유체의 흡입 및 배출량을 증대시킴은 물론, 유체흐름에 따른 마찰저항을 줄여 펌프의 진동 및 임펠러가 받는 부하를 감소시킴으로써 작업의 효율성을 향상시키는 효과가 있다.According to the impeller for the self-priming pump according to the present invention, by providing a spiral rotating blade having a predetermined angle of inclination, a faster rotational force can be obtained even with the same driving force, as well as to increase the suction and discharge of the fluid In addition, it reduces the frictional resistance due to the fluid flow, thereby reducing the vibration of the pump and the load on the impeller, thereby improving the work efficiency.

제 1회전날개, 제 2회전날개, 전방 회전판, 후방 회전판, 배출부, 통공.1st rotary blade, 2nd rotary blade, front rotary plate, rear rotary plate, discharge part, through hole.

Description

자흡식 펌프용 임펠러 {Impeller for Self-priming Pump}Impeller for Self-priming Pumps {Impeller for Self-priming Pump}

도 1은, 종래기술에 따른 자흡식 펌프의 개략적인 사시도.1 is a schematic perspective view of a self-priming pump according to the prior art;

도 2는, 종래기술에 따른 자흡식 펌프용 임펠러의 정면도.Figure 2 is a front view of the impeller for the self-priming pump according to the prior art.

도 3은, 본 발명에 따른 자흡식 펌프용 임펠러의 사시도.3 is a perspective view of an impeller for a self-priming pump according to the present invention.

도 4는, 본 발명에 따른 자흡식 펌프용 임펠러를 도시한 것으로, 도 4a는 정면도이고, 도 4b는 측면도.Figure 4 shows an impeller for a self-priming pump according to the present invention, Figure 4a is a front view, Figure 4b is a side view.

도 5는, 본 발명에 따른 자흡식 펌프용 임펠러의 A-A선 단면도.5 is a cross-sectional view taken along the line A-A of the impeller for the self-priming pump according to the present invention.

** 도면의 주요부분에 대한 부호의 설명 **** Explanation of symbols for main parts of drawings **

10: 전방회전판, 13: 제 1회전날개,10: front rotating plate, 13: first rotating blade,

15: 제 2회전날개, 17: 통공,15: second rotor blade, 17: through hole,

19: 보스, 20: 후방 회전판,19: boss, 20: rear turntable,

21: 돌기부, 23: 배출부.21: projection part, 23: discharge part.

본 발명은 자흡식 펌프용 임펠러에 관한 것으로서, 보다 상세하게는, 소정의 경사각도를 갖는 나선형의 회전날개를 이중으로 구비함으로써, 동일한 구동력으로도 더욱 빠른 회전력을 얻을 수 있고, 유체의 흡입 및 배출량을 증대시킴은 물론, 유체흐름에 따른 마찰저항을 줄여 펌프의 진동 및 임펠러가 받는 부하를 감소시킴으로써 작업의 효율성을 향상시킬 수 있는 자흡식 펌프용 임펠러에 관한 것이다.The present invention relates to an impeller for a self-priming pump, and more specifically, by having a spiral rotating blade having a predetermined inclination angle in double, it is possible to obtain a faster rotational force even with the same driving force, the suction and discharge of fluid In addition, the present invention relates to an impeller for a self-priming pump that can improve work efficiency by reducing friction of the fluid and reducing the load of the impeller by increasing friction.

일반적으로, 펌프(Pump)는, 압력작용에 의해 액체나 기체등의 유체를 관을 통해 특정 장소로 이송하거나, 저압의 용기 속에 있는 유체를 관을 통하여 고압의 용기 속으로 압송하는 장치를 말한다. 펌프는, 농촌, 광산, 토목공사장, 공장, 가정에 이르기까지 유체가 이용되는 곳에서 다양하게 사용되고 있으며, 물 뿐만 아니라 석유나 각종 약품 또는 특수한 유체의 수송에도 광범하게 사용되고 있다.In general, a pump is a device that transfers a fluid such as a liquid or a gas to a specific place through a pipe by a pressure action, or pumps a fluid in a low pressure container into a high pressure container through the pipe. Pumps are used in a variety of places where fluids are used in rural areas, mines, civil engineering works, factories, and homes, and are widely used for transporting not only water but also oil, various chemicals, or special fluids.

이러한 펌프는 그 용도상 산업용펌프, 케미칼(Chemical)펌프, 가정용 펌프 등으로 분류할 수 있으며, 그 구조상으로 왕복펌프, 로터리(회전)펌프, 원심펌프, 축류펌프, 마찰펌프, 수중펌프 등 다양한 종류의 펌프로 구분할 수가 있다. 또한, 펌프중에는 펌프케이싱내의 물만으로도 자흡(Self-Priming)이 가능하여 푸트 벨브(Foot Valve)가 불 필요한 구조로된 자흡식 펌프가 있다.These pumps can be categorized into industrial pumps, chemical pumps, and domestic pumps for their purposes, and due to their structure, various types such as reciprocating pumps, rotary (rotary) pumps, centrifugal pumps, axial pumps, friction pumps, submersible pumps, etc. Can be divided into the pump. In addition, among the pumps, there is a self-priming pump capable of self-priming using only water in the pump casing, and thus, a foot valve is unnecessary.

도 1은, 종래기술에 따른 자흡식 펌프의 개략적인 사시도를 도시한 것이고, 도 2는, 종래기술에 따른 자흡식 펌프용 임펠러의 정면도를 도시한 것이다.1 shows a schematic perspective view of a self-priming pump according to the prior art, and FIG. 2 shows a front view of the impeller for the self-priming pump according to the prior art.

도 1에 도시된 바와 같이, 종래의 자흡식 펌프는, 중공의 흡입구(103)와 배출구(105)가 U자형의 이송홈(미도시)으로 상호 연결되어 외측케이싱(100)에 형성되고, 방사상의 회전날개를 갖는 임펠러(210)가 내측케이싱(200)에 내장되어 구동모터(300)의 축방향에 결합되어 고정된다. As shown in FIG. 1, in the conventional self-priming pump, the hollow inlet 103 and the outlet 105 are interconnected to a U-shaped transfer groove (not shown) and are formed in the outer casing 100, and radially. Impeller 210 having a rotary blade of is built in the inner casing 200 is fixed is coupled to the axial direction of the drive motor 300.

이와 같은 구조에서, 구동모터(300)에 의한 회전력으로 임펠러(210)가 고속으로 회전되고, 외측케이싱(100)의 이송홈(미도시)을 통해 유체를 진공 흡입하여 펌핑이 이루어진다. 여기서, 상기 임펠러(210)는 기계적인 회전운동을 유체의 교반(攪拌)으로 전환시키는 필수적인 장치이다.In such a structure, the impeller 210 is rotated at a high speed by the rotational force by the driving motor 300, and the pumping is performed by vacuum suction of the fluid through a transfer groove (not shown) of the outer casing 100. Here, the impeller 210 is an essential device for converting mechanical rotational motion into the stirring of the fluid.

또한, 종래의 자흡식 펌프용 임펠러는, 도 2에 도시된 바와 같이, 중앙부에 보스(19)를 구비한 회전판(215)과, 상기 보스(219)의 외주면에 연결되어 방사상으로 다수개의 회전날개(213)가 형성되고, 보스(219)의 중앙으로는 구동축(미도시)이 끼워져 결합되도록 소정 깊이의 삽입홈(217)이 형성되어 있다.In addition, the conventional impeller for self-priming pump, as shown in Figure 2, the rotary plate 215 having a boss 19 in the center and the plurality of rotary wings connected to the outer peripheral surface of the boss 219 radially 213 is formed, and an insertion groove 217 having a predetermined depth is formed at the center of the boss 219 so that a driving shaft (not shown) is fitted into and coupled to the boss 219.

이러한 구조를 갖는 임펠러(210)는, 상기 구동모터(300)에 의해 구동축(미도시)이 회전되면, 방사상의 회전날개(213)가 회전하여 원심력을 얻게 되며, 그 주변의 유체는 소용돌이를 일으키면서 진공상태가 된다. 그 진공속으로 유체가 유입되어 유동이 이루어지고 배출구(105)를 통해 외부로 배출되는 것이다.In the impeller 210 having such a structure, when a driving shaft (not shown) is rotated by the driving motor 300, the radial rotating blade 213 is rotated to obtain centrifugal force, and the fluid around it causes vortex. It is in a vacuum state. The fluid is introduced into the vacuum to flow and is discharged to the outside through the outlet (105).

그런데, 상술한 바와 같은 종래의 자흡식 펌프용 임펠러는, 그 구조상 유입되는 유체의 양 및 단위시간당 펌핑량이 작아 흡입력이 떨어지고 많은 동력을 필요로 하게 되어 작업의 효율성이 떨어지는 문제점이 있었다.However, the conventional impeller for the self-priming pump as described above has a problem in that the amount of fluid flowing into the pump and the pumping amount per unit time are small, so that suction power is reduced and a lot of power is required, thereby reducing work efficiency.

또한, 방사상의 회전날개는 회전시에 유체흐름에 따른 마찰저항이 크게 되어 회전력이 떨어지는 문제점이 있었다.In addition, the radial rotation of the blade has a problem that the frictional force according to the fluid flow during rotation is large, the rotational force falls.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로, 소정의 경사각 도를 갖는 나선형의 회전날개를 이중으로 구비함으로써, 동일한 구동력으로도 더욱 빠른 회전력을 얻을 수 있고, 유체의 흡입 및 배출량을 증대시킴은 물론, 유체흐름에 따른 마찰저항을 줄여 펌프의 진동 및 임펠러가 받는 부하를 감소시켜 작업의 효율성을 향상시키는데 그 목적이 있다.
The present invention has been made in order to solve the above problems, by providing a spiral rotating blade having a predetermined angle of inclination, it is possible to obtain a faster rotational force even with the same driving force, increasing the intake and discharge of fluid Of course, the purpose is to improve the efficiency of work by reducing the frictional resistance of the fluid flow to reduce the vibration of the pump and the load on the impeller.

상기한 바와 같은 목적을 달성하기 위하여 안출된 본 발명의 자흡식 펌프용 임펠러에 의하면, 중앙부에 형성된 보스를 중심으로 소정의 경사각도를 갖고 나선형을 이루며 하부로 연장되는 다수개의 제 1회전날개와; 상기 제 1회전날개를 감싸며 돌출 형성된 전방 회전판과; 상기 전방 회전판과 일체로 형성되어, 소정 높이의 외측 둘레에는 제 1회전날개로부터 연장되어 다수개로 구획된 배출부가 형성되고, 그 후면에는 소정 두께의 돌기부가 형성되는 후방 회전판과; 상기 전방 회전판의 외주면에는 방사상으로 나선형을 이루며 동일한 높이를 갖고 상기 후방 회전판의 전면과 밀착되어 구비되는 제 2회전날개를 포함하는 것을 특징으로 한다.According to the impeller of the self-priming pump of the present invention devised in order to achieve the above object, a plurality of first rotary blades extending downward in a spiral shape with a predetermined angle of inclination with respect to the boss formed in the center; A front rotary plate formed to surround the first rotary blade and protrude; A rear rotary plate which is integrally formed with the front rotary plate, and has a plurality of discharge parts extending from the first rotary blade around the outer circumference of a predetermined height, and a protrusion having a predetermined thickness formed on a rear surface thereof; The outer circumferential surface of the front rotating plate is characterized in that it comprises a second rotating blade which is radially helical and has the same height and is in close contact with the front surface of the rear rotating plate.

그리고, 상기 제 1회전날개에는, 각 날개마다 냉각작용을 위한 메카니컬 씨일(Mechanical Seal)이 장착되기 위한 다수개의 통공이 동심원상으로 형성되는 것이 바람직하다.In the first rotary vane, a plurality of through holes for mounting a mechanical seal for cooling action is preferably formed concentrically on each wing.

또한, 상기 제 2회전날개의 갯수는 적어도 3개 이상 구비되는 것이 바람직하다.In addition, the number of the second rotary blade is preferably provided with at least three or more.

이하, 본 발명의 실시예를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은, 본 발명에 따른 자흡식 펌프용 임펠러의 사시도이고, 도 4는, 본 발명에 따른 자흡식 펌프용 임펠러를 도시한 것으로, 도 4a는 정면도이고, 도 4b는 측면도이며, 도 5는, 본 발명에 따른 자흡식 펌프용 임펠러의 A-A선 단면도이다.Figure 3 is a perspective view of an impeller for a self-priming pump according to the present invention, Figure 4 shows an impeller for a self-priming pump according to the present invention, Figure 4a is a front view, Figure 4b is a side view, Figure 5 is , AA cross-sectional view of the impeller for self-priming pump according to the present invention.

본 발명에 따른 자흡식 펌프용 임펠러에 있어서, 자흡식 펌프의 기본구성은 종래기술과 동일하므로, 이하에서는 상기한 구성에 대한 상세한 설명은 생략하기로 하고, 다만, 본 발명에 따른 임펠러에 대해 상세히 서술하고자 한다.In the impeller for the self-priming pump according to the present invention, since the basic configuration of the self-priming pump is the same as in the prior art, a detailed description of the above-described configuration will be omitted, but in detail for the impeller according to the present invention. I want to describe.

본 발명에 따른 자흡식 펌프용 임펠러는, 중앙부에 형성된 보스(19)를 중심으로 소정의 경사각도를 갖고 나선형을 이루며 하부로 연장되는 다수개의 제 1회전날개(13)와; 상기 제 1회전날개(13)를 감싸며 돌출 형성된 전방 회전판(10)과; 상기 전방 회전판(10)과 일체로 형성되어, 소정 높이의 외측 둘레에는 제 1회전날개(13)로부터 연장되어 다수개로 구획된 배출부(23)가 형성되고, 그 후면에는 소정 두께의 돌기부(21)가 형성되는 후방 회전판(20)과; 상기 전방 회전판(10)의 외주면에는 방사상으로 나선형을 이루며 동일한 높이를 갖고 상기 후방 회전판(20)의 전면과 밀착 구비되는 제 2회전날개(15)를 포함하고 있다.Self-priming pump impeller according to the present invention comprises a plurality of first rotary blades (13) extending helically with a predetermined angle of inclination around the boss (19) formed in the center; A front rotary plate 10 formed to surround the first rotary blade 13 and protrude; It is formed integrally with the front rotating plate 10, the outer periphery of the predetermined height is formed in the discharge portion 23 is divided into a plurality of partitions extending from the first rotary blade 13, the projection 21 of the predetermined thickness on the rear The rear rotating plate 20 is formed; The outer circumferential surface of the front rotating plate 10 includes a second rotating wing 15 which is radially helical and has the same height and is provided in close contact with the front surface of the rear rotating plate 20.

도 3및 도 4에 도시된 바와 같이, 상기 제 1회전날개(13)는, 보스(19)를 중심으로 나선형을 이루며 소정의 각도로 경사지게 다수개 형성되어 있다. As shown in FIGS. 3 and 4, the first rotary blades 13 are spirally formed around the bosses 19 and are formed to be inclined at a predetermined angle.

여기서, 경사진 각 날개의 일측단부는 상기 전방 회전판(10) 상부 내측면에 고정이 되고, 나선형의 각 날개의 몸체는 날개와 날개사이에 형성된 공간을 따라 하부로 연장된다. 이렇게 연장된 제 1회전날개(13)는, 상기 후방 회전판(20)에 형 성되어 다수개로 구획된 배출부(23)로 연결이 된다.Here, one side end of each inclined blade is fixed to the upper inner surface of the front rotating plate 10, the body of each blade of the spiral extends downward along the space formed between the wing and the wing. The first rotary blade 13 extended in this way is connected to the discharge part 23 formed in a plurality of partitions formed on the rear rotating plate 20.

또한, 상기 제 1회전날개(13)에는, 각 날개마다 냉각작용을 위한 메카니컬 씨일(Mechanical Seal)을 장착하기 위한 다수개의 통공(17)이 동심원상으로 형성되어 있다.In the first rotary vane 13, a plurality of through holes 17 for attaching a mechanical seal for cooling action are formed concentrically on each wing.

그리고, 제 2회전날개(15)는, 상기 전방 회전판(10)의 외주면과 동일한 높이를 갖고 방사상으로 나선형을 이루며, 그 연장된 하부면은 후방 회전판(20)의 전면과 밀착되어 형성된다. 상기 제 2회전날개(15)의 갯수는 적어도 3개 이상 구비되는 것이 바람직하다.The second rotary blade 15 has the same height as the outer circumferential surface of the front rotating plate 10 and is helically radially formed, and the extended lower surface thereof is formed in close contact with the front surface of the rear rotating plate 20. The number of the second rotary blades 15 is preferably provided with at least three or more.

본 발명에 따른 자흡식 펌프용 임펠러에 의하면, 제 1회전날개(13)와 제 2회전날개(15)의 회전에 의해 중앙으로부터 진공이 생기며, 그 진공 영역으로 유체가 유입되어 흡입이 이루어지고 상기 배출부(23)를 통해 배출이 되는 것이다. According to the impeller for the self-priming pump according to the present invention, a vacuum is generated from the center by the rotation of the first rotary blade 13 and the second rotary blade 15, the fluid is introduced into the vacuum area, the suction is made and the Will be discharged through the discharge unit (23).

이상에서는 본 발명의 바람직한 실시예를 설명하였으나, 본 발명의 범위는 이같은 특정 실시예에만 한정되지 않으며, 해당분야에서 통상의 지식을 가진자라면 본 발명의 특허청구범위내에 기재된 범주내에서 적절하게 변경이 가능할 것이다. Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to such specific embodiments, and those skilled in the art may appropriately change within the scope described in the claims of the present invention. This will be possible.

이상에서 설명한 바와 같이 본 발명에 따른 자흡식 펌프용 임펠러에 의하면, 소정의 경사각도를 갖는 나선형의 회전날개를 이중으로 구비함으로써, 동일한 구동력으로도 더욱 빠른 회전력을 얻을 수 있고, 유체의 흡입 및 배출량을 증대시킴은 물론, 유체흐름에 따른 마찰저항을 줄여 펌프의 진동 및 임펠러가 받는 부하를 감소시켜 작업의 효율성을 향상시키는 효과가 있다.As described above, according to the impeller for the self-priming pump according to the present invention, by providing a spiral rotor blade having a predetermined angle of inclination, a faster rotational force can be obtained even with the same driving force, the suction and discharge of fluid In addition to increasing the pressure, as well as reducing the frictional resistance due to the fluid flow it is effective to reduce the vibration and the load of the impeller to improve the efficiency of the work.

Claims (3)

중앙부에 형성된 보스(19)를 중심으로 소정의 경사각도를 갖고 나선형을 이루며 하부로 연장되는 다수개의 제 1회전날개(13)와;A plurality of first rotating blades 13 extending downward in a spiral shape with a predetermined inclination angle around the boss 19 formed at the center; 상기 제 1회전날개(13)를 감싸며 돌출 형성된 전방 회전판(10)과;A front rotary plate 10 formed to surround the first rotary blade 13 and protrude; 상기 전방 회전판(10)과 일체로 형성되어, 소정 높이의 외측 둘레에는 제 1회전날개(13)로부터 연장되어 다수개로 구획된 배출부(23)가 형성되고, 그 후면에는 소정 두께의 돌기부(21)가 형성되는 후방 회전판(20)과;It is formed integrally with the front rotating plate 10, the outer periphery of the predetermined height is formed in the discharge portion 23 is divided into a plurality of partitions extending from the first rotary blade 13, the projection 21 of the predetermined thickness on the rear The rear rotating plate 20 is formed; 상기 전방 회전판(10)의 외주면에는 방사상으로 나선형을 이루며 동일한 높이를 갖고 상기 후방 회전판(20)의 전면과 밀착되어 구비되는 제 2회전날개(15);A second rotary blade 15 which is radially helical on the outer circumferential surface of the front rotating plate 10 and has the same height and is in close contact with the front surface of the rear rotating plate 20; 를 포함하는 것을 특징으로 하는 자흡식 펌프용 임펠러(Impeller).Impeller (Impeller) for a self-priming pump comprising a. 제 1항에 있어서,The method of claim 1, 상기 제 1회전날개(13)에는, 각 날개마다 냉각작용을 위한 메카니컬 씨일(Mechanical Seal)이 장착되기 위한 다수개의 통공(17)이 동심원상으로 형성되는 것을 특징으로 하는 자흡식 펌프용 임펠러.The first rotary wing (13), impeller for self-priming pump, characterized in that a plurality of through-holes 17 for mounting a mechanical seal (Mechanical Seal) for cooling action for each wing is formed concentrically. 제 1항에 있어서,The method of claim 1, 상기 제 2회전날개(15)의 갯수는 적어도 3개 이상 구비되는 것을 특징으로 하는 자흡식 펌프용 임펠러.Impeller for self-priming pump, characterized in that the number of the second rotary wing 15 is provided with at least three or more.
KR1020040037565A 2004-05-25 2004-05-25 Impeller for Self-priming Pump KR100540381B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100721418B1 (en) 2006-05-12 2007-05-28 기단테크 주식회사 Impeller for fuel pump
KR100895676B1 (en) 2008-01-08 2009-05-07 이남 Impeller with one shroud which discharge both-side
KR101204381B1 (en) 2010-03-31 2012-11-23 박종하 Assistance impeller for water pump

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100951430B1 (en) * 2009-10-14 2010-04-06 조벽래 Self sucking turbo pump
KR101540403B1 (en) * 2014-10-21 2015-07-29 주식회사 조은펌프 Centrifugal Impeller Having External Blade and Pump thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100721418B1 (en) 2006-05-12 2007-05-28 기단테크 주식회사 Impeller for fuel pump
KR100895676B1 (en) 2008-01-08 2009-05-07 이남 Impeller with one shroud which discharge both-side
KR101204381B1 (en) 2010-03-31 2012-11-23 박종하 Assistance impeller for water pump

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