WO2011153921A1 - Current-guiding and silencing device for fan - Google Patents
Current-guiding and silencing device for fan Download PDFInfo
- Publication number
- WO2011153921A1 WO2011153921A1 PCT/CN2011/075242 CN2011075242W WO2011153921A1 WO 2011153921 A1 WO2011153921 A1 WO 2011153921A1 CN 2011075242 W CN2011075242 W CN 2011075242W WO 2011153921 A1 WO2011153921 A1 WO 2011153921A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe body
- guiding
- fan
- current
- square pipe
- Prior art date
Links
Images
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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
- F04D29/547—Ducts having a special shape in order to influence fluid flow
Definitions
- the utility model relates to the technical field of fans, in particular to a flow guiding mute device for a fan.
- the air outlets of large fans, especially industrial fans, are usually designed to be circular, and because the circular air outlet is relatively inconvenient to install, the square pipe body is usually welded in the direction of the wind in the circular air outlet to be more conveniently installed on the wall.
- the diameter of the circular outlet pipe body is equivalent to the side length of the square pipe body, so the four corners of the square pipe body need to be filled with the remaining material during welding.
- the purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a flow guiding mute device for a fan.
- a flow guiding mute device for a fan is formed by connecting a square pipe body and a circular air outlet pipe body, and the inner side of the four corners of the square pipe body passes through the flow guiding arc surface and the circular air outlet pipe Body connection.
- the angle between the tangent line at any one of the guiding arc surfaces and the direction of the incoming wind is between 100 and 200 degrees.
- the outer surface of the four corners of the square tubular body has a curved surface shape.
- the utility model The inner side of the four corners of the square pipe body and the circular pipe body are respectively provided with a flow guiding arc surface, and the air outlet of the fan is smoothly blown to the circular air outlet at the four corners along the guiding arc surface to avoid the formation of the vortex flow. Therefore, no noise is generated, and a good mute effect is obtained; and the wind energy consumption is also reduced, and the air volume is greatly increased, which is compatible with fluid mechanics and energy saving; in addition, the outer surface of the square corner of the square pipe body is curved and has a shape It is beneficial to reduce the amount of materials, save costs and make the shape more beautiful.
- Figure 1 is an overall perspective view of the present invention.
- the flow guiding mute device for a fan comprises a square pipe body 1 and a circular pipe body 2 Connected, the inner side of the four corners of the square tubular body 1 is connected to the circular tubular body 2 by a flow guiding curved surface 3.
- the angle between the tangent line at any one of the guide arc surface 3 and the direction of the incoming wind is in the range of 100 to 200. Between the degrees, this is beneficial to ensure that the guiding arc surface 3 is continuous and smooth, and the guiding effect is optimal.
- the flow guiding arc surface 3 is filled with the curved surface wood in the square pipe body 1
- the corner portion is pre-formed, and then the guide arc surface 3 is made by the iron block according to the pre-form, and then welded, and the polishing portion is polished and smoothed, that is, the guide arc surface 3 and the square pipe body 1 and the Round tube 2
- the smooth connection between them is beneficial to reduce air circulation resistance and thus reduce noise.
- the outer surface 10 of the four corners of the square pipe body 1 has a curved surface shape, and such a structure can reduce the amount of pipe material and save cost.
- the utility model has a simple structure, and the noise reduction effect is quite obvious, and the utility model is not limited to an industrial fan, and can also be used for a household fan or the like.
Abstract
Description
Claims (1)
- 1. 一种用于风扇的导流静音装置,由一方形管体( 1 )和一圆形出风管体( 2 )连接而成,其特征在于:所述方形管体( 1 )的四角部内侧通过导流弧面( 3 )与所述圆形出风管体( 2 )连接。A flow guiding mute device for a fan, which is formed by connecting a square pipe body (1) and a circular air outlet pipe body (2), characterized in that: the square pipe body (1) The inner side of the four corners is connected to the circular air outlet body (2) through a flow guiding surface (3).2. 根据权利要求 1 所述的一种用于风扇的导流静音装置,其特征在于:所述导流弧面( 3 )任意一处的切线与来风方向的夹角范围在 100~200 度之间。2. The flow guiding mute device for a fan according to claim 1, wherein: the guiding flow curved surface (3) The angle between the tangent and the incoming wind in any one place is between 100 and 200 degrees.3. 根据权利要求 1 所述的一种用于风扇的导流静音装置,其特征在于:所述方形管体( 1 )四角部的外表面呈弧面形。 3. The flow guiding mute device for a fan according to claim 1, wherein an outer surface of the four corners of the square tubular body (1) has a curved surface shape.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201020219829.8 | 2010-06-09 | ||
CN2010202198298U CN201723504U (en) | 2010-06-09 | 2010-06-09 | Flow-guiding silencer for fan |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011153921A1 true WO2011153921A1 (en) | 2011-12-15 |
Family
ID=43491826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2011/075242 WO2011153921A1 (en) | 2010-06-09 | 2011-06-03 | Current-guiding and silencing device for fan |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN201723504U (en) |
WO (1) | WO2011153921A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012003336A1 (en) * | 2012-02-17 | 2013-08-22 | Ziehl-Abegg Ag | Diffuser, fan with such a diffuser and device with such fans |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201723504U (en) * | 2010-06-09 | 2011-01-26 | 张崇臣 | Flow-guiding silencer for fan |
CN106123154A (en) * | 2016-06-22 | 2016-11-16 | 邓语清 | A kind of air conditioning exhausting guard |
CN109882452B (en) * | 2019-04-15 | 2020-11-06 | 上海交通大学 | Acoustic cut-off-based cooling fan noise reduction device and method thereof |
CN110307420A (en) * | 2019-06-28 | 2019-10-08 | 岭南中药饮片有限公司 | Side turns round splce |
CN113883712B (en) * | 2021-09-29 | 2022-07-22 | 宁波市鸿福风机有限公司 | High-efficient dysmorphism curved surface silencer that commonality is high |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2443181Y (en) * | 2000-08-30 | 2001-08-15 | 胡清发 | Heating fan |
CN2499604Y (en) * | 2001-06-29 | 2002-07-10 | 曾家丰 | Struture improvement of exhaust fan |
CN2644735Y (en) * | 2003-08-01 | 2004-09-29 | 吴宇宏 | Oblique angle structure of ventilating fan |
CN2648137Y (en) * | 2003-08-19 | 2004-10-13 | 萧秋绒 | Roof air exhausting fan with imporved structure |
CN201723504U (en) * | 2010-06-09 | 2011-01-26 | 张崇臣 | Flow-guiding silencer for fan |
-
2010
- 2010-06-09 CN CN2010202198298U patent/CN201723504U/en not_active Expired - Fee Related
-
2011
- 2011-06-03 WO PCT/CN2011/075242 patent/WO2011153921A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2443181Y (en) * | 2000-08-30 | 2001-08-15 | 胡清发 | Heating fan |
CN2499604Y (en) * | 2001-06-29 | 2002-07-10 | 曾家丰 | Struture improvement of exhaust fan |
CN2644735Y (en) * | 2003-08-01 | 2004-09-29 | 吴宇宏 | Oblique angle structure of ventilating fan |
CN2648137Y (en) * | 2003-08-19 | 2004-10-13 | 萧秋绒 | Roof air exhausting fan with imporved structure |
CN201723504U (en) * | 2010-06-09 | 2011-01-26 | 张崇臣 | Flow-guiding silencer for fan |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012003336A1 (en) * | 2012-02-17 | 2013-08-22 | Ziehl-Abegg Ag | Diffuser, fan with such a diffuser and device with such fans |
WO2013120623A2 (en) * | 2012-02-17 | 2013-08-22 | Ziehl-Abegg Ag | Diffusor, ventilator having such a diffusor, and device having such ventilators |
WO2013120623A3 (en) * | 2012-02-17 | 2014-08-07 | Ziehl-Abegg Ag | Diffusor, ventilator having such a diffusor, and device having such ventilators |
RU2620308C2 (en) * | 2012-02-17 | 2017-05-24 | Циль-Абегг АГ | Fan stack, fan with such stack, and device with such fans |
US10197070B2 (en) | 2012-02-17 | 2019-02-05 | Zieh1-Abegg SE | Diffusor, ventilator having such a diffusor, and device having such ventilators |
Also Published As
Publication number | Publication date |
---|---|
CN201723504U (en) | 2011-01-26 |
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