KR20000015532U - A circulating pump high indraft power system - Google Patents

A circulating pump high indraft power system Download PDF

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Publication number
KR20000015532U
KR20000015532U KR2019990000068U KR19990000068U KR20000015532U KR 20000015532 U KR20000015532 U KR 20000015532U KR 2019990000068 U KR2019990000068 U KR 2019990000068U KR 19990000068 U KR19990000068 U KR 19990000068U KR 20000015532 U KR20000015532 U KR 20000015532U
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South Korea
Prior art keywords
pump
suction
fluid
impeller
casing
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KR2019990000068U
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Korean (ko)
Inventor
정권
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정권
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Priority to KR2019990000068U priority Critical patent/KR20000015532U/en
Publication of KR20000015532U publication Critical patent/KR20000015532U/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293Details of fluid inlet or outlet

Abstract

본 고안은 물이나 기름을 흡입하여 이송시키는 펌프에 관한 것으로, 본체케이싱으로 흡입되는 물이나 기름의 흡입속도를 증가시켜 펌프의 수명과 흡입력을 높이는 펌프의 흡입력 높임장치에 관한 것이다.The present invention relates to a pump for sucking and transporting water or oil, and relates to a pump for increasing suction power of a pump to increase the life and suction power of the pump by increasing the suction speed of water or oil sucked into the body casing.

이러한 본 고안은 고속 회전하는 임펠러가 흡입구와 배출구가 구비된 케이싱속에 내장되 유체를 흡입 배출하여 이송시키는 펌프를 구성함에 있어서,The present invention has a high speed rotating impeller in the casing is provided with a suction port and the discharge port in the configuration of the pump for sucking and discharging and transporting the fluid,

임펠러와 같은 수직상태로 면상을 갖게 흡입구를 양분해 중앙에 놓이도록 댐퍼판을 형성하여 유체가 흡입되는 흡입구측의 공간을 좁혀 흡입되는 유체가 저항을 받아 유속이 높아지도록 구성되는 것을 특징으로 하는 것이다.The damper plate is formed to have a surface in a vertical state such as an impeller so that the suction port is placed at the center of the mass inlet, thereby narrowing the space on the suction port side through which the fluid is sucked, so that the suction fluid is resisted and the flow rate is increased. .

이와같는 본 고안은 펌프의 운전시 캐비테이션 현상으로 인한 소음과 진동을 줄이며 임펠러와 케이싱의 부식과 마찰을 방지해 펌프수명을 연장하며 흡입력을 향상시키는 효과를 얻게 된다.This invention reduces the noise and vibration caused by the cavitation phenomenon during the operation of the pump and prevents the corrosion and friction of the impeller and the casing to extend the pump life and improve the suction power.

Description

펌프의 흡입력 높임장치{A CIRCULATING PUMP HIGH INDRAFT POWER SYSTEM}Suction force raising device of pump {A CIRCULATING PUMP HIGH INDRAFT POWER SYSTEM}

본 고안은 물이나 기름을 흡입하여 이송시키는 펌프에 관한 것으로, 본체케이싱으로 흡입되는 물이나 기름의 흡입속도를 증가시켜 펌프의 수명과 흡입력을 높이는 펌프의 흡입력 높임장치에 관한 것이다.The present invention relates to a pump for sucking and transporting water or oil, and relates to a pump for increasing suction power of a pump to increase the life and suction power of the pump by increasing the suction speed of water or oil sucked into the body casing.

물이나 기름 등의 유체를 흡입하여 이송시키는 펌프는 도면에 도시된 도 1내지 도 2 와 같이 일반적으로 흡입구(5)와 배출구(6)가 마련된 본체케이싱(1) 속에서 임펠러(2)가 모터(3)에 의해 고속 회전하여 케이싱(1)속을 진공상태로 만들므로써 강한 흡입력으로 유체를 흡입 배출하여 이송시키게 된다.Pumps for sucking and transporting fluid such as water or oil are generally driven by the impeller 2 in the main body casing 1 provided with the inlet port 5 and the outlet port 6 as shown in FIGS. By rotating at a high speed by (3) to make the casing 1 into a vacuum state, the fluid is sucked out and transported by a strong suction force.

통상 펌프의 케이싱속에서 임펠러를 고속 회전시키기 때문에 흡입구로 흡입되는 유체속도에 따라 흡입구 가까이에서 공동부(空洞部)가 생겨 소용돌이치는 캐비테이션(cavitation)과 펌프의 흡입력이 좌우된다.In general, since the impeller is rotated at a high speed in the casing of the pump, a cavity is formed near the inlet according to the fluid velocity sucked into the inlet, and the swirling cavitation and the suction force of the pump are influenced.

캐비테이션 현상은 펌프의 운전시 소음과 진동의 원인이될 뿐만아니라 임펠러와 케이싱의 부식을 가져오므로 종래에는 이러한 캐비테이션 현상의 방지와 흡입력을 높이고자 펌프 케이싱의 흡입구에 결합되는 배관파이프의 굵기를 달리 조절하여 설치하거나 흡입구에 밸브를 장착하여 유체의 흡입속도를 높혀주어 캐비테이션 현상을 줄여주고 있는 실정이나, 설치비용만 증가할뿐 그 효과는 미미하다.Cavitation not only causes noise and vibration during operation of the pump, but also causes corrosion of the impeller and casing. Therefore, in order to prevent the cavitation phenomenon and increase the suction power, the pipe pipe coupled to the inlet of the pump casing is different in thickness. It is installed to adjust or to increase the suction speed of the fluid by installing a valve in the inlet to reduce the cavitation phenomenon, but only the installation cost increases but the effect is insignificant.

또한 펌프의 흡입력을 높이고자 별도의 가압보조 펌프를 부착하고 있는데, 사실상 설치비용에 비해 큰 효과를 거두지 못하고 있으며 특히, 흡입되는 유체의 흡입속도를 변화시키지 못해 캐비테이션 현상을 효과적으로 줄이지 못하고 있다.In addition, to increase the suction power of the pump is attached to a separate auxiliary pressure pump, in fact does not have a great effect compared to the installation cost, in particular, it does not effectively reduce the cavitation phenomenon because it does not change the suction speed of the suction fluid.

따라서 펌프의 운전시 캐비테이션 현상이 높게 발생해 소음과 진동을 초래하고 있으며 또한 임펠러와 케이싱의 부식과 마찰로 흡입력이 떨어지고 수명이 짧아지는 문제점을 안고 있다.Therefore, the cavitation phenomenon occurs during operation of the pump, which causes noise and vibration, and also has a problem in that suction power decreases and life is shortened due to corrosion and friction of the impeller and casing.

본 고안은 유체의 흡입속도를 높혀 캐비테이션 현상을 방지하는 동시에 흡입력을 향상시켜 수명이 연장되고 효율이 높은 펌프를 제공하고자 하는 것이다.The present invention aims to provide a pump having a long life and high efficiency by increasing the suction speed of the fluid to prevent the cavitation phenomenon and improving the suction power.

이러한 본 고안은 고속 회전하는 임펠러가 흡입구와 배출구가 구비된 케이싱속에 내장되 유체를 흡입 배출하여 이송시키는 펌프를 구성함에 있어서,The present invention has a high speed rotating impeller in the casing is provided with a suction port and the discharge port in the configuration of the pump for sucking and discharging and transporting the fluid,

임펠러와 같은 수직상태로 면상을 갖게 흡입구를 양분해 중앙에 놓이도록 댐퍼판을 형성하여 유체가 흡입되는 흡입구측의 공간을 좁혀 흡입되는 유체가 저항을 받아 유속이 높아지도록 구성되는 것을 특징으로 하는 것이다.The damper plate is formed to have a surface in a vertical state such as an impeller so that the suction port is placed at the center of the mass inlet, thereby narrowing the space on the suction port side through which the fluid is sucked, so that the suction fluid is resisted and the flow rate is increased. .

도 1 은 종래 모터펌프의 분리 사시도1 is an exploded perspective view of a conventional motor pump

도 2 는 종래 모터펌프의 본체 케이싱 단면도2 is a cross-sectional view of the main body casing of the conventional motor pump

도 3 은 본 고안의 실시예를 나타낸 본체 케이싱의 단면도3 is a cross-sectional view of the main body casing showing an embodiment of the present invention

도 4 는 도 3 의 A-A선 요부 단면도4 is a sectional view along the line A-A in FIG.

<도면의 주요 부분에 대한 부호의 설명><Description of the code | symbol about the principal part of drawing>

1. 케이싱 2. 임펠러 3. 모터1. Casing 2. Impeller 3. Motor

4. 내부공간 5. 흡입구 6. 배출구4. Inside space 5. Inlet 6. Outlet

7. 배관파이프 8. 댐퍼판7. Piping pipe 8. Damper plate

본 고안은 캐비테이션 현상으로 인한 펌프의 소음과 진동 및 부식과 마찰로 초래되는 펌프의 수명단축을 방지하는 동시에 흡입력을 높이기 위한 것으로, 자세한 본 고안의 구성은 도면에 도시한 도 2 내지 도 4 에서 알 수 있다.The present invention is to increase the suction power while preventing the shortening of the pump life caused by noise and vibration and corrosion and friction of the pump due to the cavitation phenomenon, the configuration of the present invention is shown in Figures 2 to 4 shown in the drawings Can be.

본체 케이싱(1)은 모터(3)에 장착되 고속 회전하는 임펠러(2)가 내장되게 내부공간(4)을 소유하고 양측에 흡입구(5)와 배출구(6)를 구비하여 물이나 기름 등의 유체가 유입 이송되도록 배관파이프(7)가 결합되게 구성된다.The main body casing (1) has an inner space (4) so that the high speed rotating impeller (2) is mounted on the motor (3), and the inlet (5) and the outlet (6) are provided on both sides to provide a fluid such as water or oil. The pipe pipe 7 is configured to be coupled so that the inlet is transported.

본 고안은 모터(3)의 작동으로 임펠러(2)가 고속 회전해 물이나 기름이 흡입되는 흡입구(5)측의 공간을 좁혀서 흡입구(5)로 흡입되는 유체가 저항을 받아 유속이 급격하게 높아지도록 하여 흡입능력을 증가시켜 캐비테이션 현상을 현저히 낮춰서 펌프의 운전시 발생하는 소음과 진동을 막고 임펠러(2) 및 케이싱(1)의 부식과 마찰을 방지하는 것이다.According to the present invention, the impeller (2) rotates at high speed by the operation of the motor (3) to narrow the space on the side of the inlet port (5) where water or oil is sucked in, so that the fluid sucked into the inlet port (5) is resisted and the flow rate is rapidly increased. By increasing the suction capacity to significantly reduce the cavitation phenomenon to prevent the noise and vibration generated during the operation of the pump and to prevent corrosion and friction of the impeller (2) and casing (1).

케이싱(1)의 흡입구(5)측에 흡입구(5)의 공간을 좁혀 흡입되는 유체가 저항을 받도록 댐퍼판(8)을 형성하는데, 댐퍼판(8)은 흡입구(5)를 양분하여 중앙에 안치해 놓이도록 하되 케이싱(1)에 내장된 임펠러(2)와 같은 수직상태로 면상을 갖게 설치한다.A damper plate 8 is formed on the inlet port 5 side of the casing 1 so as to narrow the space of the inlet port 5 so that the fluid sucked therein is resisted. The damper plate 8 bisects the inlet port 5 to the center. It is to be settled but installed in a vertical state, such as the impeller (2) built in the casing (1).

상기 댐퍼판(8)이 흡입구(5)의 중앙에 형성되 임펠러(2)와 같은 면상태로 놓이므로써 흡입되는 유체가 임펠러(2)날개의 측면으로 유입되어 임펠러(2)날개의 선단면과 흡입되는 유체와의 저항 압력을 낮추고 캐비테이션 손상을 방지하게 된다.The damper plate 8 is formed at the center of the suction port 5 and placed in the same state as the impeller 2 so that the fluid sucked into the side of the impeller 2 blades and the front end surface of the impeller 2 blades. This lowers the resistance pressure with the fluid being sucked and prevents cavitation damage.

댐퍼판(8)은 케이싱(1)의 흡입구(5)내에 형성하되 케이싱(1)과 일체로 주조되 제작될 수 있고 또는 댐퍼판(8)을 별도로 제작해서 용접으로 케이싱(1)의 흡입구(5)에 부착할 수 있다.The damper plate 8 may be formed in the inlet 5 of the casing 1, but may be manufactured integrally with the casing 1. Alternatively, the damper plate 8 may be manufactured separately and welded to the inlet of the casing 1. 5) can be attached.

이와같은 본 고안은 유체가 흡입되는 흡입구(5)에 임펠러(2)와 같은 수직상태로 면상을 갖게 댐퍼판(8)을 설치하므로써 흡입공간을 좁혀서 흡입되는 유체의 유속이 급격히 높아지게 변화시켜 캐비테이션 현상을 방지하고 흡입능력을 향상시키게 되는 것이다.In the present invention, the damper plate 8 is installed in the inlet 5 where the fluid is sucked in a vertical state such as the impeller 2 so that the suction space is narrowed so that the flow velocity of the sucked fluid is rapidly increased so that the cavitation phenomenon occurs. To prevent and improve suction capacity.

본 고안은 펌프의 흡입구측에 가압펌프나 별도의 장치를 설치하지 않고 흡입구에 댐퍼판만을 설치하므로써 흡입되는 유체의 유속이 급격히 높아지게 변화시켜 설치비용을 저렴화 하고 펌프의 운전시 캐비테이션 현상으로 인한 소음과 진동을 줄이며 임펠러와 케이싱의 부식과 마찰을 방지해 펌프수명을 연장하는 효과를 얻게된다.The present invention reduces the installation cost by rapidly changing the flow rate of the suctioned fluid by installing only the damper plate at the inlet port without installing a pressurized pump or a separate device at the inlet side of the pump, thereby reducing the installation cost and reducing the noise caused by the cavitation phenomenon during operation of the pump. This reduces vibration and prevents corrosion and friction between the impeller and the casing, resulting in longer pump life.

Claims (1)

고속 회전하는 임펠러(2)가 흡입구(5)와 배출구(6)가 구비된 케이싱(1)속에 내장되 유체를 흡입 배출하여 이송시키는 펌프를 구성함에 있어서,In the high-speed rotating impeller (2) is built in the casing (1) provided with the inlet (5) and the outlet (6) in the configuration of the pump for suction and discharge the fluid, 임펠러(2)와 같은 수직상태로 면상을 갖게 흡입구(5)를 양분해 중앙에 놓이도록 댐퍼판(8)을 형성하여 유체가 흡입되는 흡입구(5)측의 공간을 좁혀 흡입되는 유체가 저항을 받아 유속이 높아지도록 구성되는 것을 특징으로 하는 펌프의 흡입력 높임장치.The damper plate 8 is formed to have a surface in the same vertical state as the impeller 2 so that the inlet port 5 is placed in the center of the separation process. The suction power raising device of the pump, characterized in that configured to increase the flow rate.
KR2019990000068U 1999-01-07 1999-01-07 A circulating pump high indraft power system KR20000015532U (en)

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