CN206753939U - A kind of centrifugal fan of smoke exhaust ventilator - Google Patents
A kind of centrifugal fan of smoke exhaust ventilator Download PDFInfo
- Publication number
- CN206753939U CN206753939U CN201621188715.5U CN201621188715U CN206753939U CN 206753939 U CN206753939 U CN 206753939U CN 201621188715 U CN201621188715 U CN 201621188715U CN 206753939 U CN206753939 U CN 206753939U
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- blade
- fan
- centrifugal fan
- smoke exhaust
- exhaust ventilator
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Abstract
The centrifugal fan of smoke exhaust ventilator described in the utility model, including upper and lower ring flat-plate, fan shaft core and the multiple air blades for axially connecting upper and lower ring flat-plate, each air blade form an angle with axis, are characterized in：The air blade is the air-foil blade made by resistant to elevated temperatures modified nylon engineering plastics.The utility model makes the utility model not only solve the problem of plastic fan is operated because of high temperature deformation in lampblack absorber due to replacing metal material to make the fan blade chip architecture of centrifugal fan using resistant to elevated temperatures high performance engineering plastics (modified nylon engineering plastics).And this engineering plastics have the characteristics of being easy to shaping, not only declined blower fan cost, but also various aeroperformances preferably complicated air-foil blade can be designed to as needed, so noise is small, it is again with conspicuous characteristics in mitigation weight and raising aspect of performance, efficiently solve existing centrifugal fan fan and the problems such as noise is big, cost is high be present.
Description
Technical field
Appliance field is the utility model is related to, particularly a kind of centrifugal fan of smoke exhaust ventilator.
Background technology
The centrifugal fan of existing smoke exhaust ventilator, because cigarette machine operating ambient temperature it is high the characteristics of, the fan that uses all is gold
Belong to centrifugal fan.Metal centrifugal fan because of the limitation of processing technology, so be all using the sheet metal punching press such as galvanized sheet, aluminium and
Into so that leaf is all that simple uniform thickness list circular arc is leaf, this fan has the shortcomings of noise is big, cost is high.And to make
Different-thickness and the metal of moulding are leaf, can only be by extrusion process, and such production cost is higher, so being also difficult to meet vast
The requirement of consumer.
The content of the invention
The purpose of this utility model is problem and shortage be present for above-mentioned, there is provided one kind uses resistant to elevated temperatures high-performance
Modified nylon engineering plastics replace metal material, can lift fan performance in order to design various complicated air-foil blades；Simultaneously
It is easy to shaping, production cost low again, the centrifugal fan of the good smoke exhaust ventilator of quality stability.
What the technical solution of the utility model was realized in：
The centrifugal fan of smoke exhaust ventilator described in the utility model, including upper and lower ring flat-plate, axially fan shaft core and connection
Multiple air blades of upper and lower ring flat-plate, each air blade form an angle with axis, are characterized in：The air blade is by high temperature resistant
The air-foil blade made of modified nylon engineering plastics.
Above-mentioned modified nylon engineering plastics are mainly to be modified the high temperature material made by nylon and glass fibre.
The concrete shape of wherein above-mentioned air blade can be set according to using needing, such as can be by above-mentioned air blade as section
For the blade of uniform thickness arc shape.Above-mentioned air blade can also be made to blade of the section for not uniform thickness shape, such as can be by above-mentioned fan blade
Piece is as the blade that section is shape thick on both sides and thin in the middle；Or the blade of the shape for the thin thick middle in both sides.Can also be will
Above-mentioned air blade is as the blade that section is the thick shape in the thin inner side in outside, or the blade as the thin shape in the thick inner side in outside.
Even can also be the section of above-mentioned air blade has the arc shape of detent projection for one side surface.Etc..
The utility model using resistant to elevated temperatures high performance engineering plastics (modified nylon engineering plastics) due to replacing metal material
Expect to make the fan blade chip architecture of centrifugal fan, because of modified engineering plastics, heat distortion temperature is more than 220 degree, compared with unskilled labor
Engineering plastics heat distortion temperature improves 100 degree, can solve the problems, such as that plastic fan is operated because of high temperature deformation in lampblack absorber.And
This modified engineered plastic has the characteristics of being easy to shaping, is not only declined blower fan cost, but also can set as needed
Various aeroperformances preferably complicated air-foil blade is counted into, so noise is small (can to reduce by 4 points compared to metal blade fan noise
Shellfish), but it is with conspicuous characteristics in mitigation weight and raising aspect of performance, efficiently solve existing centrifugal fan fan and noise be present
Greatly, the problems such as cost is high.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the cross-sectional structure of the utility model embodiment one is illustrated.
Fig. 3 is that the cross-sectional structure of the utility model embodiment two is illustrated.
Fig. 4 is that the cross-sectional structure of the utility model embodiment three is illustrated.
Fig. 5 is that the cross-sectional structure of the utility model embodiment four is illustrated.
Fig. 6 is that the cross-sectional structure of the utility model embodiment five is illustrated.
Fig. 7 is that the cross-sectional structure of the utility model embodiment six is illustrated.
Embodiment
As shown in Fig. 1-Fig. 7, the centrifugal fan of smoke exhaust ventilator described in the utility model, including upper and lower ring flat-plate 1,2, wind
Fan shaft core 3 and axially connect multiple air blades 4 of upper and lower ring flat-plate 1,2, each air blade 4 forms an angle with axis, the wind
Blade 4 is the air-foil blade made by resistant to elevated temperatures modified nylon engineering plastics.Utility model is due to using resistant to elevated temperatures high property
Energy engineering plastics (modified nylon engineering plastics) replace metal material to make the fan blade chip architecture of centrifugal fan, change due to this
Property after engineering plastics, heat distortion temperature be more than 220 degree, compared with generic engineering plastics heat distortion temperature improve 100 degree (through survey
Examination, the plastic blade piece in the application can be 160 degree in temperature, rotating speed 2500rpm, and long-play 210 hours is indeformable),
So solve the problems, such as that plastic fan is operated because of high temperature deformation in lampblack absorber.And this resistant to elevated temperatures engineering plastics
The characteristics of with shaping is easy to, so not only declined fan cost, but also can be designed to as needed various pneumatic
The more preferable complicated air-foil blade of performance, so noise is small (can reduce by 4 decibels compared to metal blade fan noise), and mitigating weight
Amount and raising aspect of performance are with conspicuous characteristics.The concrete shape of above-mentioned air blade 4 can be according to using needing set, such as can will be above-mentioned
Blade of the air blade 4 as section for uniform thickness arc shape, as shown in Figure 2.Above-mentioned air blade 4 can also be made to section for not uniform thickness
The blade of shape, such as can by above-mentioned air blade 4 as section be shape thick on both sides and thin in the middle blade, as shown in Figure 3；Or it is
The blade of the shape of the thin thick middle in both sides, as shown in Figure 6.Or above-mentioned air blade is the thick shape in the thin inner side in outside as section
Blade, as shown in figure 4, or the blade as the thin shape in the thick inner side in outside, as shown in Figure 5.Even it can also be above-mentioned wind
The section of blade is the arc shape (i.e. there is raised line on one side of air blade) that there is detent projection on one side surface, as shown in Figure 7.Etc..
The utility model may not only facilitate the various complicated air-foil blades of design, lift fan performance；It is easy to be molded, is produced into again simultaneously
This is low, and quality stability is good, can be widely used in various smoke exhaust ventilators.
Although the utility model is to be described with reference to specific embodiments, this description is not meant to the utility model
It is construed as limiting.With reference to description of the present utility model, other changes of the disclosed embodiments, all it is for those skilled in the art
It is anticipated that, this change should belong in appended claims limited range.
Claims (6)
1. in a kind of centrifugal fan of smoke exhaust ventilator, including upper and lower ring flat-plate (1,2), fan shaft core (3) and axial connection,
Multiple air blades (4) of lower ring plate (1,2), each air blade (4) form an angle with axis, it is characterised in that：The air blade
(4) it is the air-foil blade made by resistant to elevated temperatures modified nylon engineering plastics.
2. the centrifugal fan of smoke exhaust ventilator according to claim 1, it is characterised in that：The section of above-mentioned air blade (4) is
Uniform thickness arc shape.
3. the centrifugal fan of smoke exhaust ventilator according to claim 1, it is characterised in that：The section of above-mentioned air blade (4) is
Not uniform thickness shape.
4. the centrifugal fan of smoke exhaust ventilator according to claim 3, it is characterised in that：The section of above-mentioned air blade (4) is
Shape thick on both sides and thin in the middle or the shape for the thin thick middle in both sides.
5. the centrifugal fan of smoke exhaust ventilator according to claim 3, it is characterised in that：The section of above-mentioned air blade (4) is
The thick shape in the thin inner side in outside is the thin shape in the thick inner side in outside.
6. the centrifugal fan of smoke exhaust ventilator according to claim 1, it is characterised in that：The section of above-mentioned air blade (4)
There is the arc shape of detent projection for one side surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621188715.5U CN206753939U (en) | 2016-11-04 | 2016-11-04 | A kind of centrifugal fan of smoke exhaust ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621188715.5U CN206753939U (en) | 2016-11-04 | 2016-11-04 | A kind of centrifugal fan of smoke exhaust ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206753939U true CN206753939U (en) | 2017-12-15 |
Family
ID=60606901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621188715.5U Active CN206753939U (en) | 2016-11-04 | 2016-11-04 | A kind of centrifugal fan of smoke exhaust ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206753939U (en) |
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2016
- 2016-11-04 CN CN201621188715.5U patent/CN206753939U/en active Active
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