CN103174672B - BI oblique flow wind pushing impeller - Google Patents
BI oblique flow wind pushing impeller Download PDFInfo
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- CN103174672B CN103174672B CN201310113067.1A CN201310113067A CN103174672B CN 103174672 B CN103174672 B CN 103174672B CN 201310113067 A CN201310113067 A CN 201310113067A CN 103174672 B CN103174672 B CN 103174672B
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Abstract
The present invention relates to field of ventilation equipment.BI oblique flow wind pushing impeller, comprise ring leaf base plate, wheel hub, baffle liner and more blades, more blades is fixed between ring leaf base plate and baffle liner, upper air inlet angle and lower air intake angle angle are different and all between 10.1 °-25 °, and upper air-out angle is with lower air-out angle angle difference and all between 20 °-45 °; Ring leaf base plate external diameter is between 420mm-480mm, and the internal diameter size of baffle liner is the 76%-83% of ring leaf base plate external diameter, and the air-admitting surface between arbitrary neighborhood blade is the 76%-85% of corresponding exhaust outlet area; Blade top is made up of the connection area be connected as a single entity and disconnected district, and disconnected district is in the air intake direction inside blade.The advantage of this BI oblique flow wind pushing impeller is novel structure, and air quantity is large and noise is low.
Description
Technical field
The present invention relates to field of ventilation equipment, particularly relate to BI oblique flow wind pushing impeller.
Background technique
BI oblique flow wind pushing impeller is the vitals in air-conditioning, BI oblique flow wind pushing impeller comprises ring leaf base plate, wheel hub, blade and baffle liner, blade is fixed between ring leaf base plate and baffle liner, be connected as a single entity inside wheel hub and ring leaf base plate, wheel hub is concentric with ring leaf base plate, the center of hub top arranges axle sleeve, and during use, motor shaft drives BI oblique flow wind pushing impeller to rotate through axle sleeve upper shaft hole.The usability of BI oblique flow wind pushing impeller is mainly reflected in air force and noise control aspect, air force and noise height are mutual, the large noise of general air quantity is relatively just high, the little noise of air quantity is naturally low, the parameter that the usability of BI oblique flow wind pushing impeller relates to is a lot, the shape of such as leaf base plate, wheel hub, blade and baffle liner, size and Placement etc.Very reasonably BI oblique flow wind pushing impeller is few in air force and noise control in the market.
Summary of the invention
The object of the invention is the kind in order to enrich BI oblique flow wind pushing impeller, disclosing a kind of novel structure, the large and BI oblique flow wind pushing impeller that noise is low of air quantity.
In order to realize above-mentioned object, present invention employs following technological scheme:
BI oblique flow wind pushing impeller, comprise ring leaf base plate, wheel hub, baffle liner and more blades, multi-disc is fixed between ring leaf base plate and baffle liner, blade air intake to outlet air end is distorted shape, the air intake angle of blade is divided into the upper air inlet angle near baffle liner and the lower air intake angle near ring leaf base plate, and upper air inlet angle is different and all between 10.1 °-25 ° with lower air intake angle angle; The air-out angle of blade is divided into the upper air-out angle near baffle liner and the lower air-out angle near ring leaf base plate, and upper air-out angle is different and all between 20 °-45 ° with lower air-out angle angle; Ring leaf base plate external diameter is between 420mm-480mm, and the internal diameter size of baffle liner is the 76%-83% of ring leaf base plate external diameter, and the air-admitting surface between arbitrary neighborhood blade is the 76%-85% of corresponding exhaust outlet area; Blade top is made up of the connection area be connected as a single entity and disconnected district, and blade is fixed by connection area and baffle liner, and disconnected district is in the air intake direction inside blade.
As preferably, the air-admitting surface between arbitrary neighborhood blade is the 78%-79% of corresponding exhaust outlet area; Upper air inlet angle angle is greater than lower air intake angle angle, upper air-out angle angle is less than lower air-out angle angle, and the difference between upper air-out angle angle and lower air-out angle angle is between 12 °-16 °, blade outboard end is concordant with ring leaf plate outer side limit, noise rise unconspicuous situation add down to reducing 2% air quantity.
As preferably, upper air inlet angle is 18 °, and lower air intake angle is 11 °, and upper air-out angle is 25 °, and lower air-out angle is 40 °; Ring leaf base plate external diameter is 462mm, and the internal diameter of baffle liner is 366mm, and air quantity is maximum and noise is minimum.
Have employed the BI oblique flow wind pushing impeller of above-mentioned technological scheme, blade air intake to outlet air end is distorted shape, upper air inlet angle and lower air intake angle angle are different and all between 10.1 °-25 °, upper air-out angle and lower air-out angle angle are different and all between 20 °-45 °, the air-out of blade is linearly changed along blade height direction, effectively can weaken noise energy superposition, reduce noise.Disconnected district is in the air intake direction inside blade, can ensure the bulk strength of fan blade, can promote air quantity again.Ring leaf base plate external diameter is between 420mm-480mm, the internal diameter size of baffle liner is the 76%-83% of ring leaf base plate external diameter, air-admitting surface between arbitrary neighborhood blade is the 76%-85% of corresponding exhaust outlet area, and obtain good static pressure, air intake efficiency at least improves 2%.The advantage of this BI oblique flow wind pushing impeller is novel structure, and air quantity is large and noise is low.
Accompanying drawing explanation
Fig. 1: the BI oblique flow wind pushing impeller structural representation of the embodiment of the present invention.
Fig. 2: the BI oblique flow wind pushing impeller schematic diagram one not installing baffle liner in the embodiment of the present invention.
Fig. 3: the BI oblique flow wind pushing impeller schematic diagram two not installing baffle liner in the embodiment of the present invention.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 and Fig. 3, the specific embodiment of the present invention is made a detailed explanation.
BI oblique flow wind pushing impeller as shown in Figure 1, Figure 2 and Figure 3, comprise ring leaf base plate 1, wheel hub 2, baffle liner 4 and more blades 3, more blades 3 is fixed between ring leaf base plate 1 and baffle liner 4, be connected as a single entity inside wheel hub 2 and ring leaf base plate 1, wheel hub 2 is concentric with ring leaf base plate 1, the top of wheel hub 2 is provided with shaft hole sleeve, and wheel hub 2 is provided with radiation hole.Ring leaf base plate 1 external diameter is between 420mm-480mm, and the internal diameter size of baffle liner 4 is 76%-83% of ring leaf base plate 1 external diameter.
Blade 3 air intake is distorted shape to outlet air end, the air intake angle of blade 3 is divided into the upper air inlet angle a1 near the baffle liner 4 and lower air intake angle a2 near ring leaf base plate 1, upper air inlet angle a1 and lower air intake angle a2 angle are different and all between 10.1 °-25 °, upper air inlet angle a1 angle is greater than lower air intake angle angle a2.The air-out angle of blade 3 is divided into the upper air-out angle b1 near the baffle liner 4 and lower air-out angle b2 near ring leaf base plate 1, upper air-out angle b1 and lower air-out angle b2 angle are different and all between 20 °-45 °, upper air-out angle b1 angle is less than lower air-out angle b2 angle, and the difference between upper air-out angle b1 angle and lower air-out angle b2 angle is between 12 °-16 °.Upper air inlet angle a1 is air intake surface top end with the angle of the contrary tangent direction of fan blade sense of rotation and blade air intake surface top circular arc tangential line, and lower air intake angle a2 is air intake surface bottom end with the angle of the contrary tangent direction of fan blade sense of rotation and blade air intake surface bottom circular arc tangential line.Upper air-out angle b1 is outlet air surface top end with the angle of the contrary tangent direction of fan blade sense of rotation and blade outlet air surface top circular arc tangential line, and lower air-out angle b2 is outlet air surface bottom end with the angle of the contrary tangent direction of fan blade sense of rotation and blade outlet air surface bottom circular arc tangential line.Upper air inlet angle a1 is different with lower air intake angle a2 angle, and upper air-out angle b1 is different with lower air-out angle b2 angle, and the air-out of blade 3 is linearly changed along blade height direction, effectively can weaken noise energy superposition, at least reduce noise 2dB.
Blade 3 top is made up of the connection area 32 be connected as a single entity and disconnected district 33, connection area 32 and the baffle liner 4 of blade are fixed by ultrasonic welding, disconnected district 33 is in the air intake direction inside blade, connection area 32 is in the outside in disconnected district 33, the intensity of the connection of blade 3 and baffle liner 4 can be ensured, lifting air quantity that again can be suitable.
Air-admitting surface A between arbitrary neighborhood blade 3 is the 75%-85% of corresponding exhaust outlet area B, namely above-below direction is between ring leaf base plate 1 and baffle liner 4, left and right directions is in air-admitting surface A between adjacent blades 3 and exhaust outlet area B, and the air-admitting surface A between arbitrary neighborhood blade 3 is the 78%-79% of corresponding exhaust outlet area B, can obtain best static pressure, air intake efficiency at least improves 2%.
Blade 3 is generally 5,7,8 or 9.Upper air inlet angle a1 is 18 °, and lower air intake angle a2 is 11 °, and upper air-out angle b1 is 25 °, and lower air-out angle b2 is 40 °.Ring leaf base plate 1 external diameter is 462mm, and the internal diameter of baffle liner 4 is 366mm, and air quantity is maximum and noise is minimum.The bottom of blade 3 outboard end is concordant with ring leaf base plate 1 outer side.Its air quantity of BI oblique flow wind pushing impeller that Dimensions is similar be in the market generally 2200 cubic metres per hour, noise is generally 49 decibels, adopt its air quantity of BI oblique flow wind pushing impeller of above-mentioned parameter be 2300 cubic metres per hour, noise is 43 decibels, and namely air quantity is large and noise is low.
Claims (2)
1. BI oblique flow wind pushing impeller, comprise ring leaf base plate, wheel hub, baffle liner and more blades, more blades is fixed between ring leaf base plate and baffle liner, it is characterized in that blade air intake to outlet air end is distorted shape, the air intake angle of blade is divided into the upper air inlet angle near baffle liner and the lower air intake angle near ring leaf base plate, and upper air inlet angle is different and all between 10.1 °-25 ° with lower air intake angle angle; The air-out angle of blade is divided into the upper air-out angle near baffle liner and the lower air-out angle near ring leaf base plate, and upper air-out angle is different and all between 20 °-45 ° with lower air-out angle angle; Ring leaf base plate external diameter is between 420mm-480mm, and the internal diameter size of baffle liner is the 76%-83% of ring leaf base plate external diameter, and the air-admitting surface between arbitrary neighborhood blade is the 76%-85% of corresponding exhaust outlet area; Blade top is made up of the connection area be connected as a single entity and disconnected district, and blade is fixed by connection area and baffle liner, and disconnected district is in the air intake direction inside blade; Upper air inlet angle angle is greater than lower air intake angle angle, and upper air-out angle angle is less than lower air-out angle angle, and the difference between upper air-out angle angle and lower air-out angle angle is between 12 °-16 °.
2. BI oblique flow wind pushing impeller according to claim 1, it is characterized in that upper air inlet angle is 18 °, lower air intake angle is 11 °, and upper air-out angle is 25 °, and lower air-out angle is 40 °; Ring leaf base plate external diameter is 462mm, and the internal diameter of baffle liner is 366mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113067.1A CN103174672B (en) | 2013-04-02 | 2013-04-02 | BI oblique flow wind pushing impeller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113067.1A CN103174672B (en) | 2013-04-02 | 2013-04-02 | BI oblique flow wind pushing impeller |
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| CN103174672A CN103174672A (en) | 2013-06-26 |
| CN103174672B true CN103174672B (en) | 2016-01-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3922860A4 (en) * | 2019-02-07 | 2022-02-16 | Mitsubishi Electric Corporation | Centrifugal air blower and air conditioner using same |
| CN110360150B (en) * | 2019-07-08 | 2020-08-21 | 珠海格力电器股份有限公司 | Wind wheel, centrifugal fan and air conditioner indoor unit |
| CN110725808B (en) * | 2019-10-31 | 2021-03-02 | 中国科学院工程热物理研究所 | Centrifugal impeller blade, configuration method and centrifugal compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158003Y (en) * | 1992-12-08 | 1994-03-02 | 河北工学院 | Efficiency energy-saving fan specially for warming machine use |
| CN1802512A (en) * | 2003-11-27 | 2006-07-12 | 大金工业株式会社 | Blade wheel for centrifugal blower and centerifugal blower with the same |
| EP2264320A1 (en) * | 2008-04-18 | 2010-12-22 | Mitsubishi Electric Corporation | Turbofan and air conditioner |
| CN103174673A (en) * | 2013-04-02 | 2013-06-26 | 宁波朗迪叶轮机械有限公司 | Plastic air supply device for air conditioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170331A (en) * | 2005-12-26 | 2007-07-05 | Daikin Ind Ltd | Turbofan and indoor unit of air conditioner using it |
| JP2010133254A (en) * | 2008-12-02 | 2010-06-17 | Daikin Ind Ltd | Centrifugal blower, and air conditioner provided with the same |
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2013
- 2013-04-02 CN CN201310113067.1A patent/CN103174672B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158003Y (en) * | 1992-12-08 | 1994-03-02 | 河北工学院 | Efficiency energy-saving fan specially for warming machine use |
| CN1802512A (en) * | 2003-11-27 | 2006-07-12 | 大金工业株式会社 | Blade wheel for centrifugal blower and centerifugal blower with the same |
| EP2264320A1 (en) * | 2008-04-18 | 2010-12-22 | Mitsubishi Electric Corporation | Turbofan and air conditioner |
| CN103174673A (en) * | 2013-04-02 | 2013-06-26 | 宁波朗迪叶轮机械有限公司 | Plastic air supply device for air conditioner |
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| CN103174672A (en) | 2013-06-26 |
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