KR960023833A - Impeller of Centrifugal Pump - Google Patents

Impeller of Centrifugal Pump Download PDF

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Publication number
KR960023833A
KR960023833A KR1019940040456A KR19940040456A KR960023833A KR 960023833 A KR960023833 A KR 960023833A KR 1019940040456 A KR1019940040456 A KR 1019940040456A KR 19940040456 A KR19940040456 A KR 19940040456A KR 960023833 A KR960023833 A KR 960023833A
Authority
KR
South Korea
Prior art keywords
impeller
cavitation
centrifugal pump
area becomes
negative pressure
Prior art date
Application number
KR1019940040456A
Other languages
Korean (ko)
Other versions
KR970001516B1 (en
Inventor
윤홍열
Original Assignee
구자홍
Lg 전자주식회사
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 구자홍, Lg 전자주식회사 filed Critical 구자홍
Priority to KR94040456A priority Critical patent/KR970001516B1/en
Publication of KR960023833A publication Critical patent/KR960023833A/en
Application granted granted Critical
Publication of KR970001516B1 publication Critical patent/KR970001516B1/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps

Landscapes

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

Abstract

본 발명은 원심형 펌프의 임펠러에 관한 것으로, 종래에는 브레이드 사이의 유동이 부압면 측에서는 속도에 비해 압력이 낮아 캐비테이션(cavitation :공동화현상)이 발생되고, 압력면 측으로는 압력의 회복이 속도의 감소보다 크기 때문에 세퍼레이션(separation : 분리현상)이 발생하게 되어 동력손실 및 소음증가의 원인으로 작용되었는바, 쉬라우드와 허브의 형상을 브레이드와 브레이드 사이의 단면적이 압력면측으로 갈수록 토출측 면적은 좁아지도록 형성하고, 부압면측으로 갈수록 토출측 면적은 넓어지도록 형성한 본 발명을 제공하여 임펠러의 고속회전 및 저유량에 따른 캐비테이션과 세퍼레이션의 발생을 방지하도록 한 것이다.The present invention relates to an impeller of a centrifugal pump. In the related art, the flow between the braids is lower than the speed on the negative pressure side, resulting in cavitation (cavitation), and the pressure recovery on the pressure side reduces the speed. Because of the larger size, separation occurred, which caused power loss and increased noise. As the cross-sectional area of the shroud and hub moves toward the pressure surface, the discharge area becomes narrower. The present invention is formed so that the discharge side area becomes wider toward the negative pressure surface side to prevent the occurrence of cavitation and separation due to the high speed rotation of the impeller and the low flow rate.

Description

원심형 펌프의 임펠러Impeller of Centrifugal Pump

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 (가)(나)는 본 발명에 의한 임펠러의 단면도 및 측면도, 제5도는 본 발명에 의한 임펠러의 작용상태도.Figure 4 (a) (b) is a cross-sectional view and side view of the impeller according to the present invention, Figure 5 is a working state of the impeller according to the present invention.

Claims (1)

쉬라우드와 허브의 형상을 브레이드와 브레이드 사이의 단면적이 압력면측으로 갈수록 토출측 면적은 좁아지도록 형성하고, 부압면측으로 갈수록 토출측 면적은 넓어지도록 형성한 것을 특징으로 하는 원심형 펌프의 임펠러.Impeller of the centrifugal pump characterized in that the shape of the shroud and hub is formed so that the discharge side area becomes narrower as the cross-sectional area between the braid and the braid toward the pressure side, and the discharge side area becomes wider toward the negative pressure side. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR94040456A 1994-12-31 1994-12-31 Impeller of centrifugal pump KR970001516B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR94040456A KR970001516B1 (en) 1994-12-31 1994-12-31 Impeller of centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR94040456A KR970001516B1 (en) 1994-12-31 1994-12-31 Impeller of centrifugal pump

Publications (2)

Publication Number Publication Date
KR960023833A true KR960023833A (en) 1996-07-20
KR970001516B1 KR970001516B1 (en) 1997-02-11

Family

ID=19406171

Family Applications (1)

Application Number Title Priority Date Filing Date
KR94040456A KR970001516B1 (en) 1994-12-31 1994-12-31 Impeller of centrifugal pump

Country Status (1)

Country Link
KR (1) KR970001516B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100793974B1 (en) * 2006-11-22 2008-01-16 김형기 An apparatus for preventing a centrifugal pump from cavitation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102124840B1 (en) * 2019-09-09 2020-06-19 김형기 An apparatus for preventing cavitation of the centrifugal pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100793974B1 (en) * 2006-11-22 2008-01-16 김형기 An apparatus for preventing a centrifugal pump from cavitation

Also Published As

Publication number Publication date
KR970001516B1 (en) 1997-02-11

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