CN102454629A - Fan impeller - Google Patents
Fan impeller Download PDFInfo
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- CN102454629A CN102454629A CN2010105185241A CN201010518524A CN102454629A CN 102454629 A CN102454629 A CN 102454629A CN 2010105185241 A CN2010105185241 A CN 2010105185241A CN 201010518524 A CN201010518524 A CN 201010518524A CN 102454629 A CN102454629 A CN 102454629A
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- hub
- blades
- wheel hub
- fan impeller
- wall
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Abstract
The invention discloses a fan impeller, which comprises a hub, an annular rear disk connected to the periphery of the bottom part of the hub, a plurality of blades with the bottom edges fixed on the upper surface of the rear disk, and an annular front disk connected with the top edges of the blades, wherein a cone-ring-shaped conical stiffener is arranged between the outer wall of the hub and the upper surface of the rear disk, the blades are divided into short extended blades and long extended blades according to extended distance from the bottom edges of the blades to the hub, and the same number of short extended blades are arranged between any two adjacent long extended blades. The fan impeller has the beneficial effects that: the cone-ring-shaped conical stiffener is arranged between the outer wall of the hub and the upper surface of the rear disk, so that the strength of the rear disk is further enhanced, and the high-speed rotation of the fan impeller is ensured at high temperature without deformation. In addition, the blades with different lengths are adopted on the radial direction of the rear disk, so that both the strength and the ventilation performance of the fan impeller are taken into consideration.
Description
Technical field
The present invention relates to the industrial ventilation technical field, relate in particular to a kind of industrial furnace propellant circuit draught fan impeller that is used for.
Background technique
Referring to Fig. 1, the structure of draught fan impeller comprises wheel hub 3 in the existing technology, the hub disk 1, the end that are in the peripheral annular of wheel hub 3 be along blade 4 that is fixed on hub disk 1 surface and the shroud 2 that connects the annular on edge, blade 4 top.Wheel hub 3 is for having the cylinder or the cone of axial hole; Through hole is used to penetrate live axle; If closing on a side of wheel hub, extends the ordinary circumstance lower blade until linking to each other with the wheel hub outer wall; Then be referred to as linear leaf, be not connected, then be referred to as short blade with the wheel hub outer wall otherwise blade closes on a side of wheel hub.
Temperature is higher in the industrial furnace that heat treatment is used, to be used for propellant circuit blower fan particularly the impeller in the blower fan higher requirement is arranged.The common revolution of impeller is about 1480rpm, and industrial furnace for example in the perhydro bell-type furnace, is atmosphere of hydrogen; In order to make the gas circulation in the stove faster; Reach the abundant exchange of heat, need to improve impeller rotation to 2100～2200rpm, like this existing blade wheel structure intensity just is difficult to satisfy usage requirement; Use can cause the position relation between distortion, especially hub disk and shroud and the hub disk to change easily under high temperature condition, influences the normal use of draught fan impeller.
Summary of the invention
The invention provides and a kind of hub disk has been carried out the draught fan impeller of preparatory deformation process and enhancement process, can avoid and offset the deformation of hub disk in the using process.And can take into account intensity and performance of ventilating to blade distribution having carried out improvement.
A kind of draught fan impeller; The hub disk, the end that comprise wheel hub, be connected the annular of wheel hub bottom periphery are along the shroud that is fixed on some blades of hub disk upper surface and connects the annular on all edges, blades top; Be provided with the conical stiffener of conical ring shape between the upper surface of described wheel hub outer wall and hub disk; The edge is connected with the wheel hub outer wall in the mesopore of conical stiffener, and the edge, the end of conical stiffener is connected with the upper surface of hub disk, and described blade is divided into short extended blade and long extended blade according to its end along the extended distance to wheel hub; All blades distribute around wheel hub at the upper surface of hub disk radially, and wherein the centre of two any adjacent long extended blades is provided with the short extended blade of equal number.
Described hub disk has mesopore, and the interior edge of this mesopore is fixedly connected with the wheel hub outer wall, and hub disk begins to be inclined upwardly from the position that contacts with the wheel hub outer wall.
Described hub disk is inclined upwardly from the inclination angle that the position that contacts with the wheel hub outer wall begins with 5 °.
Wherein the centre of two adjacent long extended blades is provided with 1～4 short extended blade arbitrarily.
Between the lower surface of described shroud and the wheel hub outer wall, be evenly distributed to few four around the circumference of hub direction and add and wring.
The invention has the beneficial effects as follows the conical stiffener that between the upper surface of wheel hub outer wall and hub disk, is provided with the conical ring shape, further strengthened the intensity of hub disk, can at high temperature guarantee draught fan impeller at a high speed rotation and be unlikely to take place deformation.Be employed in the different blade of length on the disc radial of back in addition, take into account the intensity and the performance of ventilating of draught fan impeller.
Description of drawings
Fig. 1 is the generalized section of draught fan impeller in the existing technology;
Fig. 2 is the generalized section of draught fan impeller of the present invention.
Embodiment
Referring to Fig. 2, draught fan impeller of the present invention comprises that wheel hub 3, wheel hub 3 have axial hole and be used to penetrate live axle, and the edge was fixed on the bottom surface of the top of hub disk 1 upper surface, blade along the shroud 2 that all is fixed on annular at the bottom of wheel hub 3 bottom periphery were provided with annular hub disk 1, blade.
The description in relevant orientation among the present invention, as upper and lower, top, the end be among the figure, do not represent absolute orientation.
Be provided with the conical stiffener 5 of conical ring shape between the upper surface of wheel hub 3 outer walls and hub disk 1, the edge is connected with wheel hub 3 outer walls in the mesopore of conical stiffener 5, and the edge, the end of conical stiffener 5 is connected with the upper surface of hub disk 1.
The hub disk 1 of annular has mesopore, and the interior edge of the mesopore of hub disk 1 is fixedly connected with wheel hub 3 outer walls, and hub disk 1 is inclined upwardly from the inclination alpha that the position that contacts with wheel hub 3 outer walls begins with 5 °.
Blade is divided into short extended blade 4a and long extended blade 4b according to its end along the extended distance to wheel hub 3, and wherein the centre of two adjacent long extended blades is provided with 3 short extended blades arbitrarily.Promptly short extended blade 4a mixes use with long extended blade 4b.
Weak point therefore have higher intensity, and the length that short extended blade 4a makes progress in hub disk 1 footpath is omited more near the outer wall of wheel hub 3 in the edge, the inboard end that can be good at extended blade 4b among the figure, therefore can guarantee to obtain suitable ventilation.
Between the lower surface of shroud 2 and wheel hub 3 outer walls, evenly distribute eight to add around wheel hub 3 circumferencial directions and wring 6, further guaranteed the intensity of shroud 2.
The present invention is employed in the end that hub disk 1 footpath makes progress along the different blade of length, takes into account the intensity and the performance of ventilating of draught fan impeller.Hub disk 1 has acclivitous preparatory deformation, can offset the deformation in the using process.Conical stiffener 5 has further strengthened the intensity of hub disk 1, can at high temperature guarantee draught fan impeller at a high speed rotation and be unlikely to take place deformation.
Claims (5)
1. draught fan impeller; The hub disk, the end that comprise wheel hub, be connected the annular of wheel hub bottom periphery are along the shroud that is fixed on some blades of hub disk upper surface and connects the annular on all edges, blades top; It is characterized in that; Be provided with the conical stiffener of conical ring shape between the upper surface of described wheel hub outer wall and hub disk; The edge is connected with the wheel hub outer wall in the mesopore of conical stiffener, and the edge, the end of conical stiffener is connected with the upper surface of hub disk, and described blade is divided into short extended blade and long extended blade according to its end along the extended distance to wheel hub; All blades distribute around wheel hub at the upper surface of hub disk radially, and wherein the centre of two any adjacent long extended blades is provided with the short extended blade of equal number.
2. draught fan impeller as claimed in claim 1 is characterized in that described hub disk has mesopore, and the interior edge of this mesopore is fixedly connected with the wheel hub outer wall, and hub disk begins to be inclined upwardly from the position that contacts with the wheel hub outer wall.
3. draught fan impeller as claimed in claim 2 is characterized in that, described hub disk is inclined upwardly from the inclination angle that the position that contacts with the wheel hub outer wall begins with 5 °.
4. draught fan impeller as claimed in claim 3 is characterized in that, wherein the centre of two adjacent long extended blades is provided with 1～4 short extended blade arbitrarily.
5. draught fan impeller as claimed in claim 4 is characterized in that, between the lower surface of described shroud and the wheel hub outer wall, is evenly distributed to few four around the circumference of hub direction and adds and wring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105185241A CN102454629A (en) | 2010-10-25 | 2010-10-25 | Fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105185241A CN102454629A (en) | 2010-10-25 | 2010-10-25 | Fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454629A true CN102454629A (en) | 2012-05-16 |
Family
ID=46038165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105185241A Pending CN102454629A (en) | 2010-10-25 | 2010-10-25 | Fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102454629A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454635A (en) * | 2013-09-18 | 2015-03-25 | 佛山市建准电子有限公司 | Blowing fan |
| CN114214490A (en) * | 2021-12-20 | 2022-03-22 | 武汉睿宇创科技有限公司 | Controllable atmosphere strong convection circulation bell-type furnace platform of many piles of materials |
-
2010
- 2010-10-25 CN CN2010105185241A patent/CN102454629A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454635A (en) * | 2013-09-18 | 2015-03-25 | 佛山市建准电子有限公司 | Blowing fan |
| CN104454635B (en) * | 2013-09-18 | 2017-03-08 | 佛山市建准电子有限公司 | Blower fan |
| CN114214490A (en) * | 2021-12-20 | 2022-03-22 | 武汉睿宇创科技有限公司 | Controllable atmosphere strong convection circulation bell-type furnace platform of many piles of materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |