WO2011153921A1 - Current-guiding and silencing device for fan - Google Patents

Current-guiding and silencing device for fan Download PDF

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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
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WO
WIPO (PCT)
Prior art keywords
pipe body
guiding
fan
current
square pipe
Prior art date
Application number
PCT/CN2011/075242
Other languages
French (fr)
Chinese (zh)
Inventor
张崇臣
Original Assignee
Zhang Chongchen
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 Zhang Chongchen filed Critical Zhang Chongchen
Publication of WO2011153921A1 publication Critical patent/WO2011153921A1/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
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/54Fluid-guiding means, e.g. diffusers
    • F04D29/541Specially adapted for elastic fluid pumps
    • F04D29/545Ducts
    • F04D29/547Ducts 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

A current-guiding and silencing device for a fan is formed by the connection of a square pipe body (1) and a round air outlet pipe body (2). The inner sides of four corner parts of the square pipe body (1) are connected to the round air outlet pipe body (2) by a current-guiding arc surface (3). An included angle between a tangent line of any point of the current-guiding arc surface (3) and the air supplying direction is 100-200 degrees. The device has better silencing effect, less air energy consumption, high air volume, and energy-saving and environment-friendly functions. Furthermore, the device reduces the material usage amount, and saves the production cost.

Description

一种用于风扇的导流静音装置  Flow guiding mute device for fan 一种用于风扇的导流静音装置  Flow guiding mute device for fan
技术领域: Technical field:
本实用新型涉及风扇技术领域,特指一种用于风扇的导流静音装置。 The utility model relates to the technical field of fans, in particular to a flow guiding mute device for a fan.
背景技术: Background technique:
大型风扇尤其是工业用风扇的出风口通常设计成圆形,而由于圆形出风口安装较为不便,因此在圆形出风口的来风方向通常焊接方形管体以更为方便地安装在墙体上,圆形出风口管体的直径与方形管体的边长相当,因此焊接时方形管体的四个角部需要用余料补上。这种结构虽然能保证四角部不漏风,但是由于高速的风垂直地吹在四角处的余料表面,并在四角处的空间内形成旋涡乱流摩擦而产生很大的噪音,因此形成噪声污染;并且旋涡乱流也易抵消部分风力,使风力产生无谓浪费。 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. Upper, 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. Although this structure can ensure that the four corners do not leak air, the high-speed wind blows vertically on the surface of the residual material at the four corners, and forms a vortex turbulent friction in the space at the four corners to generate a large noise, thus forming noise pollution. And the vortex turbulence is also easy to offset part of the wind, making the wind wasteless.
实用新型内容: Utility model content:
本实用新型的目的在于克服现有技术的上述不足之处,提供一种用于风扇的导流静音装置。 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.
本实用新型实现其目的采用的技术方案是: 一种用于风扇的导流静音装置,由一方形管体和一圆形出风管体连接而成,所述方形管体的四角部内侧通过导流弧面与所述圆形出风管体连接。 The technical solution adopted by the utility model to achieve its purpose is: 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.
所述导流弧面任意一处的切线与来风方向的夹角范围在 100~200 度之间。 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.
所述方形管体四角部的外表面呈弧面形。 The outer surface of the four corners of the square tubular body has a curved surface shape.
本实用新型采用上述结构后,由于 方形管体与圆形管体连接的四角部的内侧分别设有导流弧面,风扇的出风在四角处沿导流弧面顺畅地吹至圆形出风口,避免旋涡乱流的形成,因此不会有噪音产生,获得很好的静音效果;而且还减少了风能消耗,大幅增加了风量,既符合流体力学又节能环保;此外,方形管体四角部的外表面呈弧面形也有利于减少材料用量,节约成本,使外形更具美感。 After adopting the above structure, 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.
附图说明: BRIEF DESCRIPTION OF THE DRAWINGS:
图 1 是本实用新型的整体立体图。 Figure 1 is an overall perspective view of the present invention.
具体实施方式: detailed description:
下面结合具体实施例和附图对本实用新型进一步说明。 The present invention will be further described below in conjunction with the specific embodiments and the accompanying drawings.
如图 1 所示,本实用新型所述的用于风扇的导流静音装置由一方形管体 1 和一圆形管体 2 连接而成,所述方形管体 1 的四角部内侧通过导流弧面 3 与所述圆形管体 2 连接。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,这样有利于保证该导流弧面 3 连续圆滑,导流效果最佳。本实用新型中,导流弧面 3 是利用弧面形木材填充在方形管体 1 的角部获得预型,再根据预型利用铁块制作导流弧面 3 然后焊接,并对焊接处抛光打磨圆滑,即所述的导流弧面 3 与所述方形管体 1 和所述圆形管体 2 之间均为圆滑衔接,有利于减少空气流通阻力,从而降低噪声。 As shown in FIG. 1 , the flow guiding mute device for a fan according to the present invention 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. In the utility model, 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.
所述方形管体 1 四角部的外表面 10 处呈弧面形,这样的结构可以减少管体材料的用量,节约成本。 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.
综上所述,本实用新型结构简单,降噪效果相当明显,而且本实用新型并非限定工业用风扇,其也可以用于家用风扇等。 In summary, 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.

Claims (1)

  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.
PCT/CN2011/075242 2010-06-09 2011-06-03 Current-guiding and silencing device for fan WO2011153921A1 (en)

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

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WO2011153921A1 true WO2011153921A1 (en) 2011-12-15

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Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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Publication number Publication date
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