CN102748327A - Axial-flow blower impeller device with sickle-shaped forward-bending blade - Google Patents
Axial-flow blower impeller device with sickle-shaped forward-bending blade Download PDFInfo
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- CN102748327A CN102748327A CN2012102682612A CN201210268261A CN102748327A CN 102748327 A CN102748327 A CN 102748327A CN 2012102682612 A CN2012102682612 A CN 2012102682612A CN 201210268261 A CN201210268261 A CN 201210268261A CN 102748327 A CN102748327 A CN 102748327A
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Abstract
The invention relates to the technical field of axial-flow blowers, specifically to an axial-flow blower impeller device with a sickle-shaped forward-bending blade. The axial-flow blower impeller device comprises a blade (1), a wheel hub (2), a clamping block (3), fixing boards (4) and a fastening piece (6), wherein the fixing boards (4) comprise an upper fixing board and a lower fixing board; the shaft handle of the blade (1) is mounted in the clamping block (3); the clamping block (3) is fixed between the upper fixing board and the lower fixing board through the fastening piece (6); the blade (1) is a sickle-shaped forward-bending blade; and the shaft handle of the blade (1) can be regulated rotationally in the clamping block (3). Compared with the prior art, the axial-flow blower impeller device is characterized by novel and simple structure, convenient mounting, high-efficient energy conservation and low noise; noise is 2-3dB lower than that of a traditional high-efficient blower; in addition, the mounting angle of the axial-flow blower impeller device with the sickle-shaped forward-bending blade can be regulated on the spot; and the axial-flow blower impeller device is used very conveniently and is worth to be popularized and applied.
Description
[technical field]
The present invention relates to the axial-flow blower technical field, specifically a kind of axial flow fan vane wheel device with the sickleshaped forward curved vane.
[background technique]
Air stream cross obtained behind the impeller of axial-flow blower can head performance except with parameter correlations such as the physical dimension of impeller, rotating speed, also relevant with the blade pattern.The blade pattern be meant blade bend towards direction, this is by the stagger angle degree of blade and the decision of exit installation angle degree.
At present, the blade pattern can be divided into these three kinds of backward bent vane (be exit installation angle degree＜90 °), radial vane (be exit installation angle degree=90 °), forward-curved blades (be exit installation angle degree＞90 °) basically.Wherein, the total head that backward bent vane produces is less, but static pressure head portion in total head is bigger, and the runner energy loss is little, and efficient is higher, but the structure relative complex, cost is high; Though radial blade processing is simple, efficient is low, noise is big, uses not extensive; Compare with backward bent vane, it is big that the forward-curved blade total head is wanted, but its dynamic head portion in total head is bigger; The runner energy loss is big, and efficient is not higher, however; Because the forward-curved blade dimensional weight is little, low price still is widely used in the occasion of low pressure and mass flow.
In addition, the performance of ability head and the stagger angle degree of blade have much relations, and blade angle is generally 10 °～45 °, and established angle is big more, and air quantity and blast are big more.The impeller established angle has fixed and adjustable two kinds, and is fixed to the design separately of different setting angle impellers, increased manufacture cost; Adjustable then same impeller can be fit to different setting angles, has reduced manufacture cost, and adjustable impeller device setting angle adjusts before dispatching from the factory, with blast and the air quantity that adapts to particular requirement, practicality simple to operate.Therefore, if can provide the axial flow fan vane wheel device of a kind of efficient energy-saving, adjustable angle formula will have very large market potential.
[summary of the invention]
The object of the invention is exactly to solve above-mentioned deficiency, and a kind of axial flow fan vane wheel device with the sickleshaped forward curved vane is provided, and not only efficient energy-saving is simple in structure, and is easy for installation, and the setting angle of blade is adjustable.
For realizing that above-mentioned purpose has designed a kind of axial flow fan vane wheel device with the sickleshaped forward curved vane; Comprise blade 1, wheel hub 2, clamp 3, fixed plate 4 and fastening piece 6; Said fixed plate 4 comprises upper mounted plate and bottom plate, and the footstalk of said blade 1 is installed in the clamp 3, and said clamp 3 is fixed between upper mounted plate, the bottom plate through fastening piece 6; Said blade 1 is the sickleshaped forward curved vane, and the footstalk of said blade 1 is rotatable adjusting in clamp 3.
The footstalk outer round surface of said blade 1 is provided with reference line 7, and said clamp 3 is provided with the angle line 8 that matches with reference line 7.
Said clamp 3 is made up of upper clamping block 31, following clamp 32, and the footstalk of said blade 1 is embedded in the groove 9 between upper clamping block 31 and the following clamp 32, and said angle line 8 is arranged on the upper clamping block 31.
Said clamp 3 outsides are provided with boss 1 and boss 2 11, have T-slot 12 on the said boss 1, and said T-slot 12 is connected with spring sheet 5 with boss 2 11 places.
The present invention compares with existing technology, and novel structure is reasonable in design, because the blade of axial-flow blower is set to the sickleshaped forward curved vane, on the one hand, then owing to the increase of pressure reduction, can saves an accessory fan, and then reduce cost; On the other hand, because that the efficient maximum rises to is about 90%, can the amount of saving energy 3-5%; Therefore, compare with existing other high-performance blower fans, the present invention is not only energy-efficient, and low noise, than the low 2-3dB of traditional air-foil fan noise; In addition, the axial flow fan vane wheel apparatus structure of band sickleshaped forward curved vane of the present invention is simple, easy for installation, and setting angle can regulate at the scene, is worthy of popularization.
[description of drawings]
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a scheme of installation of the present invention;
Fig. 3 is the structural representation of upper clamping block among the present invention;
Fig. 4 is the be hit by a bullet structural representation of reed of the present invention;
Among the figure: 1 is blade, and 2 is wheel hub, and 3 is clamp, and 4 is fixed plate, and 5 is spring sheet; 6 is fastening piece, and 7 is reference line, and 8 is angle line, and 9 is groove, and 10 is boss one; 11 is that boss two, 12 is a T-slot, and 31 is upper clamping block, and 32 are following clamp, and 41 is bottom plate.
[embodiment]
Further specify below below in conjunction with accompanying drawing the present invention being done:
With shown in the accompanying drawing 2, the present invention includes: blade 1, wheel hub 2, clamp 3, fixed plate 4, spring sheet 5 and fastening piece 6, fixed plate 4 comprise upper mounted plate and bottom plate 41 like accompanying drawing 1; Clamp 3 is fixed between upper mounted plate, the bottom plate 41 through fastening piece 6; Clamp 3 is made up of upper clamping block 31, following clamp 32, and blade 1 is the sickleshaped forward curved vane, and the footstalk of blade 1 root is embedded in the groove 9 between upper clamping block 31 and the following clamp 32; Two places are provided with elongated reference line 7 on the footstalk outer round surface of blade 1 root; This reference line 7 is used in reference in setting angle, and angle line 8 is carved with in the position of matching with reference line on the root of blade footstalk in the inboard of clamp, and this angle line 8 is arranged on the upper clamping block 31; Like accompanying drawing 3, thus the rotatable adjusting in clamp 3 of the footstalk of blade 1.Clamp 3 outsides are provided with boss 1 and boss 2 11, have T-slot 12 on the boss 1, and this T-slot 12 is connected with spring sheet 5 with boss 2 11 places, like accompanying drawing 4.
Among the present invention, during the impeller assembling, at first bottom plate is placed on the frock clamping; Wheel hub places central authorities, will descend clamp to tip upside down on the bottom plate again, and the boss one on the following clamp passes the circular hole on the bottom plate respectively with boss two; Footstalk with root of blade places down on the clamp groove then, and upper clamping block is buckled in the footstalk of root of blade, uses then with quadrat method and successively other 9 groups of blades and clamp is placed on bottom plate; And another upper mounted plate is placed on whole 10 clamps; Simultaneously the boss one of clamp passes the circular hole on the fixed plate with boss two, then with screw with blade, wheel hub, clamp and fixed plate pretension, at this moment; Each blade can rotate freely in the cylndrical surface that per two clamps constitute, but can not do axial motion.After adjustment peace at the bottom of the established angle finishes, with all screw tightenings, and all coat fastening glue in nut one side with torque wrench; Then spring sheet is passed the T-slot on the boss one of the clamp outside; Arrive the top of boss two, because the top of boss two is slightly higher than the position of the T-slot on the boss one, spring sheet is therefore by tensioner; Spring sheet after the tensioner will provide safety guarantee with securing means for the axial flow fan vane wheel device simultaneously as cover before and after the mounted impeller on the one hand.
The present invention is in certain laboratory in colleges and universities of Germany; Pass through computer simulation; Utilization fluid mechanics; A kind of axial flow fan vane wheel device that principle design such as gas dynamics go out with the sickleshaped forward curved vane, and use the software simulation actual operating state, this sickleshaped forward curved vane is carried out static state and dynamic fatigue analysis.After the computer simulation test was passed through, gravity casting went out the sickleshaped forward curved vane of a plurality of diameter D300, is assembled into the adjustable axial flow fan vane wheel device of a kind of setting angle and carries out the air performance test at the fluid test center.After prepackage prepares draught fan impeller according to the setting angle of technological requirement, pass through blance test and overspeed test again, just can be installed in the Blower Housing preparation and carry out testing property.
The present invention is respectively under 5 kinds of different blade installation angles; This impeller is tested; Test result is carried out numerical simulation according to computational fluid mechanics (CFD) method, simulates that diameter is the performance curve with this sickleshaped forward curved vane axial flow fan vane wheel device of 1600CM under rotating speed 1000rpm; Three kinds of diameters of other three kinds of impeller diameters are respectively 900CM, 1250CM, the air quantity of 1600CM impeller and static pressure.Wherein, the axial flow fan vane wheel device of the band sickleshaped forward curved vane of diameter 1600CM is installed in certain air for air conditioning in textile factories system and carries out testing property as gas fan, and the laboratory is carried out The results of numerical simulation and is able to checking at the scene: static pressure has risen 12%; Dynamic pressure has risen 27.3%; Air quantity has risen 12.8%, and power consumption has only risen 0.8%, and noise has reduced 1.7-3.1dB simultaneously; And 1 ° of the every reduction of setting angle can reduce power consumption about 5%.
In addition; Air-supply and return air are cotton mill and cloth factory two big power consumption master operations; In the cotton mill, it is about 55% that this power consumption accounts for whole air conditioning and filtration system, and at Bu Chang; This ratio is up to 75%; Compare with the traditional radial vane in other high-end blower fans, the axial flow fan vane wheel device of band sickleshaped forward curved vane of the present invention on the one hand since the increase of pressure reduction can save an accessory fan and then reduce cost, on the other hand since the efficient maximum rise to about 90% can the amount of saving energy 3-5%.
The present invention does not receive the restriction of above-mentioned mode of execution, and other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify, and all should be the substitute mode of equivalence, is included within protection scope of the present invention.
Claims (4)
1. axial flow fan vane wheel device with the sickleshaped forward curved vane; Comprise blade (1), wheel hub (2), clamp (3), fixed plate (4) and fastening piece (6); Said fixed plate (4) comprises upper mounted plate and bottom plate; The footstalk of said blade (1) is installed in the clamp (3); Said clamp (3) is fixed between upper mounted plate, the bottom plate through fastening piece (6), it is characterized in that: said blade (1) is the sickleshaped forward curved vane, the rotatable adjusting in clamp (3) of the footstalk of said blade (1).
2. the axial flow fan vane wheel device of band sickleshaped forward curved vane as claimed in claim 1 is characterized in that: the footstalk outer round surface of said blade (1) is provided with reference line (7), and said clamp (3) is provided with the angle line (8) that matches with reference line (7).
3. according to claim 1 or claim 2 the axial flow fan vane wheel device of band sickleshaped forward curved vane; It is characterized in that: said clamp (3) is made up of upper clamping block (31), following clamp (32); The footstalk of said blade (1) is embedded in the groove (9) between upper clamping block (31) and the following clamp (32), and said angle line (8) is arranged on the upper clamping block (31).
4. the axial flow fan vane wheel device of band sickleshaped forward curved vane as claimed in claim 3; It is characterized in that: said clamp (3) outside is provided with boss one (10) and boss two (11); Have T-slot (12) on the said boss one (10), said T-slot (12) locates to be connected with spring sheet (5) with boss two (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102682612A CN102748327A (en) | 2012-07-31 | 2012-07-31 | Axial-flow blower impeller device with sickle-shaped forward-bending blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102682612A CN102748327A (en) | 2012-07-31 | 2012-07-31 | Axial-flow blower impeller device with sickle-shaped forward-bending blade |
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| Publication Number | Publication Date |
|---|---|
| CN102748327A true CN102748327A (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102682612A Pending CN102748327A (en) | 2012-07-31 | 2012-07-31 | Axial-flow blower impeller device with sickle-shaped forward-bending blade |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953582A (en) * | 2014-05-06 | 2014-07-30 | 张斐斐 | Combined type air passage fan |
| CN106996393A (en) * | 2016-01-22 | 2017-08-01 | 日本斯频德制造株式会社 | Possesses the cooling tower of axial fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004005548U1 (en) * | 2003-04-19 | 2004-06-17 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Fan |
| CN2625621Y (en) * | 2003-04-01 | 2004-07-14 | 中国科学院工程热物理研究所 | Axial ventilator impeller with antecurvature blade |
| DE102007016805A1 (en) * | 2007-04-05 | 2008-10-16 | Voith Patent Gmbh | Axial ventilator for refrigeration system of rail vehicle, has impeller with hub and blades i.e. sickle blades, where sweeping angles between beaded line and tangents are plotted over radius of impeller and comply nonlinear function |
| CN102022380A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN202326419U (en) * | 2011-10-21 | 2012-07-11 | 洛瓦空气工程(上海)有限公司 | Axial-flow type ventilator vane wheel device capable of adjusting angle |
| CN202718919U (en) * | 2012-07-31 | 2013-02-06 | 洛瓦空气工程(上海)有限公司 | Axial flow fan impeller device of forward bent blade |
-
2012
- 2012-07-31 CN CN2012102682612A patent/CN102748327A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625621Y (en) * | 2003-04-01 | 2004-07-14 | 中国科学院工程热物理研究所 | Axial ventilator impeller with antecurvature blade |
| DE202004005548U1 (en) * | 2003-04-19 | 2004-06-17 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Fan |
| DE102007016805A1 (en) * | 2007-04-05 | 2008-10-16 | Voith Patent Gmbh | Axial ventilator for refrigeration system of rail vehicle, has impeller with hub and blades i.e. sickle blades, where sweeping angles between beaded line and tangents are plotted over radius of impeller and comply nonlinear function |
| CN102022380A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN202326419U (en) * | 2011-10-21 | 2012-07-11 | 洛瓦空气工程(上海)有限公司 | Axial-flow type ventilator vane wheel device capable of adjusting angle |
| CN202718919U (en) * | 2012-07-31 | 2013-02-06 | 洛瓦空气工程(上海)有限公司 | Axial flow fan impeller device of forward bent blade |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953582A (en) * | 2014-05-06 | 2014-07-30 | 张斐斐 | Combined type air passage fan |
| CN106996393A (en) * | 2016-01-22 | 2017-08-01 | 日本斯频德制造株式会社 | Possesses the cooling tower of axial fan |
| CN106996393B (en) * | 2016-01-22 | 2019-05-10 | 日本斯频德制造株式会社 | The cooling tower for having axial fan |
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Application publication date: 20121024 |