KR19990001853U - Shape of Centrifugal Blower Impeller for Noise Reduction - Google Patents
Shape of Centrifugal Blower Impeller for Noise Reduction Download PDFInfo
- Publication number
- KR19990001853U KR19990001853U KR2019970015343U KR19970015343U KR19990001853U KR 19990001853 U KR19990001853 U KR 19990001853U KR 2019970015343 U KR2019970015343 U KR 2019970015343U KR 19970015343 U KR19970015343 U KR 19970015343U KR 19990001853 U KR19990001853 U KR 19990001853U
- Authority
- KR
- South Korea
- Prior art keywords
- impeller
- centrifugal blower
- shape
- noise
- noise reduction
- Prior art date
Links
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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- 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
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- 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
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
원심송풍기의 구동시 발생하는 소음을 절감시키기 위한 원심송풍기 소음저하용 임페럴의 형상에 관한 것으로, 종래의 임펠러의 형태는 변경하지 않고 종래의 임펠러 깃(5) 사이에 길이가 짧은 소음저하용 깃(8)을 삽입함으로써 임펠러의 깃끝(4)과 차단면(7)의 간격을 증가시켜, 임펠러의 깃끝(4)이 차단면(7)과 교차할 때의 발생하는 압력의 맥동현상을 부드럽게 하여줌으로써 원심송풍기가 구동될 때 발생되는 소음을 감소시킬 수 있게 한 소음저하용 깃(8)을 갖는 임펠러의 형상으로써 모든 원심송풍기의 임펠러에 적용할 수 있게 한 것을 특징으로 한 소음저하용 원심송풍기 임펠러의 형상The present invention relates to a shape of a centrifugal blower noise reducing impeller for reducing noise generated when driving a centrifugal blower, and has a short noise reduction collar between the conventional impeller blades 5 without changing the shape of a conventional impeller. By inserting (8), the gap between the tip 4 of the impeller and the blocking surface 7 is increased to soften the pulsation of the pressure generated when the tip 4 of the impeller intersects with the blocking surface 7. Noise reduction centrifugal blower impeller characterized by the shape of the impeller having a noise reducing feather (8) to reduce the noise generated when the centrifugal blower is driven by applying to all impellers of the centrifugal blower Shape
Description
본 고안은 원심송풍기에서 발생하는 소음을 감소시키는 원심송풍기 임펠러의 형상에 관한 것으로, 본 고안의 소음저하용 원심송풍기 임펠러는 원심송풍기에서 발생하는 소음을 감소시켜 이로 인한 소음공해를 낮출 수 있다.The present invention relates to the shape of the centrifugal blower impeller to reduce the noise generated in the centrifugal blower, the noise reduction centrifugal blower impeller of the present invention can reduce the noise caused by the noise generated in the centrifugal blower.
도 1은 종래의 원심송풍기의 구조를 나타내는 것으로써, 이는 흡입구(1), 임펠러(2), 케이싱(3)으로 구성되며, 케이싱(3)은 임펠러(2)를 감싸는 형태로써, 기체가 흡입구(1)로 유입되고, 임펠러(2)의 깃(5)을 통과하면서 에너지를 공급받아 토출구(6)로 배출된다.Figure 1 shows the structure of a conventional centrifugal blower, which is composed of a suction port (1), an impeller (2), a casing (3), the casing (3) wraps around the impeller (2), the gas inlet It flows into (1), receives energy while passing through the collar 5 of the impeller 2, and discharges it to the discharge port 6.
도 1에서와 같이 원심송풍기의 임펠러(2)가 회전할 때, 임펠러의 깃끝(4)은 케이싱(3)의 차단면(7)과 연속적으로 교차하며, 압력이 맥동현상을 일으켜 소음을 발생시키므로 임펠러(2)의 형태를 수정함으로써 원심송풍기에서 발생하는 소음을 감소시킬 수 있다는 가능성을 제공하여 준다.When the impeller 2 of the centrifugal blower rotates as shown in FIG. 1, the feather tip 4 of the impeller crosses continuously with the blocking surface 7 of the casing 3, and the pressure causes pulsation to generate noise. Modifying the shape of the impeller 2 offers the possibility of reducing the noise generated in the centrifugal blower.
차단면(7)은 케이싱(3)측에서 임펠러(2)의 깃끝(4)과 가장 가까운 케이싱의 하단부이다.The blocking surface 7 is the lower end of the casing closest to the feather tip 4 of the impeller 2 on the casing 3 side.
본 고안의 목적은 임펠러가 회전할 때 케이싱의 차단면에서의 맥동현상으로 인하여 발생하는 소음을 감소시키는 것으로서 원심송풍기의 구동시 발생하는 소음을 절감시키기 위한 원심송풍기 소음저하용 임페럴의 형상이며 종래의 임펠러의 형태는 변경하지 않고 종래의 임펠러 깃 사이에 길이가 짧은 소음저하용 깃을 삽입함으로써 임펠러의 깃끝과 차단면의 간격을 증가시켜, 임펠러의 깃끝이 차단면과 교차할 때의 발생하는 압력의 맥동현상을 부드럽게 하여줌으로써 원심송풍기가 구동될 때 발생되는 소음을 감소시킬 수 있게 한 깃을 갖는 임펠러의 형상이다.The purpose of the present invention is to reduce the noise caused by the pulsation phenomenon in the blocking surface of the casing when the impeller rotates, and to reduce the noise generated when the centrifugal blower is driven, it is the shape of the impeller for reducing noise. The pressure generated when the tip of the impeller intersects the blocking surface by increasing the distance between the tip of the impeller and the blocking surface by inserting a short noise reduction feather between conventional impeller blades without changing the shape of the impeller. It is the shape of the impeller with a feather which makes it possible to reduce the noise generated when the centrifugal blower is driven by softening the pulsation phenomenon of the centrifugal blower.
모든 원심송풍기의 임펠러에 적용할 수 있는 소음저하용 원심송풍기 임펠러의 형상으로 완성되어 있다.It is completed in the shape of noise reduction centrifugal blower impeller applicable to all centrifugal blower impellers.
도 1은 기존의 원심송풍기의 임펠러와 케이싱의 구조를 나타내는 단면도1 is a cross-sectional view showing the structure of an impeller and a casing of a conventional centrifugal blower
도 2는 본 고안의 소음저하용 원심송풍기 임펠러의 형상을 나타내는 단면도 및 설명도Figure 2 is a cross-sectional view and explanatory drawing showing the shape of the noise reduction centrifugal blower impeller of the present invention
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
(1) : 흡입구(2) : 임펠러(1): suction port (2): impeller
(3) : 케이싱(4) : 깃끝(3): casing (4): feather tip
(5) : 깃(6) : 토출구(5): feather (6): discharge port
(7) : 차단면(8) : 소음저하용 깃(7): blocking surface (8): noise reduction feather
이하, 첨부된 도면 제 2 도를 참조하여 본 고안의 실시예를 구체적으로 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to FIG. 2.
도 2는 본 고안의 소음저하용 깃(8)을 갖는 원심송풍기 임페러의 형상을 나타내는 도면으로, 종래의 임펠러 깃(5) 사이에 길이가 짧은 소음저하용 깃(8)을 삽입하여 종래의 임펠러를 수정함으로써 임펠러의 깃끝(4)과 차단면(7)의 간격을 증가시켜, 소음저하용 임펠러 깃끝(4)이 차단면(7)과 교차할 때 발생하는 압력의 맥동현상을 부드럽게 하여줌으로써 원심송풍기가 구동될 때 발생하는 소음을 감소시킬 수 있음을 요지로 한다.2 is a view showing the shape of a centrifugal blower impeller having a noise reduction feather 8 according to the present invention, and a conventional noise reduction feather 8 is inserted between the conventional impeller blades 5. By modifying the impeller, the gap between the tip 4 and the blocking surface 7 of the impeller is increased, thereby softening the pulsation of pressure generated when the noise-reducing impeller tip 4 intersects the blocking surface 7. The point is that noise generated when the centrifugal blower is driven can be reduced.
다시 말하자면 원심송풍기 임펠러(2)가 회전할 때, 임펠러의 깃끝(4)은 케이싱(3)측에서 임펠러(2)의 깃끝(4)과 가장 가까운 차단면(7)과 연속적으로 교차하며, 이 때 압력이 맥동현상을 일으켜 소음을 발생시키므로 종래의 임펠러의 형태는 변경하지 않고 종래의 임펠러 깃(5) 사이에 길이가 짧은 소음저하용 깃(8)을 삽입함으로써 임펠러의 깃끝(4)과 차단면(7)의 간격을 증가시켜, 임펠러의 깃끝(4)이 차단면(7)과 교차할 때의 발생하는 압력의 맥동현상을 부드럽게 하여줌으로써 원심송풍기가 구동될 때 발생되는 소음을 감소시킬 수 있게 한 소음저하용 깃(8)을 갖는 임펠러의 형상으로써 모든 원심송풍기의 임펠러에 적용할 수 있게 한 것이다.In other words, when the centrifugal blower impeller 2 rotates, the feather tip 4 of the impeller continuously intersects the blocking surface 7 closest to the feather tip 4 of the impeller 2 on the casing 3 side. When the pressure causes pulsation to generate noise, a short noise reduction feather 8 is inserted between the impeller blades 5 and is blocked from the tip end 4 of the impeller without changing the shape of the conventional impeller. By increasing the spacing of the face 7, it is possible to reduce the noise generated when the centrifugal blower is driven by smoothing the pulsation of pressure generated when the tip 4 of the impeller intersects the blocking face 7. The shape of the impeller with the noise-lowering collar 8 can be applied to the impeller of all centrifugal blowers.
상기와 같이 된 본 고안의 소음저하용 깃(8)을 갖는 소음저하용 원심송풍기 임펠러의 형상은 모든 원심송풍기의 임펠러에 적용할 수 있다.The shape of the noise reduction centrifugal blower impeller having the noise reduction feather 8 of the present invention as described above can be applied to the impellers of all centrifugal blowers.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019970015343U KR19990001853U (en) | 1997-06-23 | 1997-06-23 | Shape of Centrifugal Blower Impeller for Noise Reduction |
KR2019990016275U KR200173233Y1 (en) | 1997-06-23 | 1999-08-10 | Impeller structure of centrifugal fan for reducing noise |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019970015343U KR19990001853U (en) | 1997-06-23 | 1997-06-23 | Shape of Centrifugal Blower Impeller for Noise Reduction |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019990016275U Division KR200173233Y1 (en) | 1997-06-23 | 1999-08-10 | Impeller structure of centrifugal fan for reducing noise |
Publications (1)
Publication Number | Publication Date |
---|---|
KR19990001853U true KR19990001853U (en) | 1999-01-15 |
Family
ID=19503781
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019970015343U KR19990001853U (en) | 1997-06-23 | 1997-06-23 | Shape of Centrifugal Blower Impeller for Noise Reduction |
KR2019990016275U KR200173233Y1 (en) | 1997-06-23 | 1999-08-10 | Impeller structure of centrifugal fan for reducing noise |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019990016275U KR200173233Y1 (en) | 1997-06-23 | 1999-08-10 | Impeller structure of centrifugal fan for reducing noise |
Country Status (1)
Country | Link |
---|---|
KR (2) | KR19990001853U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102558158B1 (en) * | 2021-07-06 | 2023-07-20 | 소애연 | Centrifugal impeller with partially opened shroud |
KR102428874B1 (en) * | 2021-12-01 | 2022-08-03 | (주)그린텍 | impeller for volute pump with double-suction |
-
1997
- 1997-06-23 KR KR2019970015343U patent/KR19990001853U/en active IP Right Review Request
-
1999
- 1999-08-10 KR KR2019990016275U patent/KR200173233Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR200173233Y1 (en) | 2000-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4834611A (en) | Vortex proof shrouded inducer | |
KR19990001853U (en) | Shape of Centrifugal Blower Impeller for Noise Reduction | |
KR200213380Y1 (en) | Structure Centrifugal Blower Casing for Noise Reduction | |
KR100437017B1 (en) | a centrifugal fan | |
KR100339570B1 (en) | Vane diffuser | |
KR100813145B1 (en) | centrifugal compressor | |
JP2005009361A (en) | Centrifugal fluid machine | |
KR102515700B1 (en) | Air blower | |
JPH04311698A (en) | Motor fan | |
KR20060007637A (en) | Guide vane structure of fan-motor for vacuum cleaner | |
KR200440266Y1 (en) | Casing for pump | |
JP2006194238A (en) | Centrifugal compressor | |
JPH0370896A (en) | Self-priming pump | |
KR200205350Y1 (en) | Vortex control device of axial fan | |
KR0129269B1 (en) | Fluid structure of wesco pump | |
KR100420516B1 (en) | Turbo-sirocco fan Assembly | |
KR100248708B1 (en) | Structure of scroll | |
KR100441093B1 (en) | Centrifugal blower for a cleaner | |
KR100416777B1 (en) | Turbo fan | |
KR200273754Y1 (en) | Structure of Air Conditioner Low Noise Bell Mouse | |
KR200248773Y1 (en) | Fan and Shroud Assembly | |
KR100416776B1 (en) | Blower | |
KR200276467Y1 (en) | Blower | |
JPH0797999A (en) | Westco pump | |
KR200273142Y1 (en) | air blower |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
T201 | Request for technology evaluation of utility model |