CN221096945U - Centrifugal wind wheel - Google Patents
Centrifugal wind wheel Download PDFInfo
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- CN221096945U CN221096945U CN202322617536.5U CN202322617536U CN221096945U CN 221096945 U CN221096945 U CN 221096945U CN 202322617536 U CN202322617536 U CN 202322617536U CN 221096945 U CN221096945 U CN 221096945U
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- impeller
- blades
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- 238000005452 bending Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a centrifugal wind wheel, which comprises a wheel disc, a wheel cover, an impeller and a plurality of centrifugal blades, wherein the wheel cover is arranged on the wheel disc; the centrifugal blades are arranged between the wheel cover and the wheel disc, the centrifugal blades are circumferentially distributed by taking the central axes of the wheel cover and the wheel disc as axes, one end of each centrifugal blade faces the central axis of the wheel disc, and the other end of each centrifugal blade faces the peripheries of the wheel cover and the wheel disc; the middle part of wheel cap is provided with the air intake, the impeller sets up in the air intake. The centrifugal wind wheel is further provided with an impeller on the basis of the original wind wheel, airflow firstly works through the impeller to lift the wind speed and the pressure head, then works through the centrifugal blades to continuously lift the wind speed and the pressure head until the airflow is thrown out of the centrifugal wind wheel. Under the condition that the shapes of a wheel disc, a wheel cover and a metal framework of the original wind wheel are not changed, the working capacity of the wind wheel is enhanced, the wind quantity and the pressure head of the wind wheel can be greatly improved, the miniaturized design is realized, and the novel wind wheel is used for small-size large-wind-quantity application scenes.
Description
Technical Field
The utility model relates to the field of centrifugal machine wind wheels, in particular to a centrifugal wind wheel.
Background
The ventilator is widely used for ventilation of factories, mines, tunnels and the like, wherein the centrifugal ventilator forms negative pressure in the blower by means of rotation of an impeller, sucks external air into the blower and discharges the external air out of the blower through an impeller runner and a volute, and the centrifugal ventilator is more applied to various fields; as a main component of the ventilator. Most of the conventional centrifugal wind wheels in the prior market use a single-ring blade structure, and only one ring of blades are accommodated on a wheel disc. The diameter and the height of the product with the same specification can only be adjusted by adjusting the blade profile to improve the air quantity and noise air performance, and the air quantity is less.
Disclosure of utility model
The utility model aims to provide a centrifugal wind wheel to solve the problem of low air intake in the existing structure.
To achieve the purpose, the utility model adopts the following technical scheme:
The utility model provides a centrifugal wind wheel, which comprises a wheel disc, a wheel cover, an impeller and a plurality of centrifugal blades, wherein the wheel cover is arranged on the wheel disc; the centrifugal blades are arranged between the wheel cover and the wheel disc, the centrifugal blades are circumferentially distributed by taking the central axes of the wheel cover and the wheel disc as axes, one end of each centrifugal blade faces the central axis of the wheel disc, and the other end of each centrifugal blade faces the peripheries of the wheel cover and the wheel disc; the middle part of wheel cap is provided with the air intake, the impeller sets up in the air intake.
In the centrifugal wind wheel, the impeller comprises an impeller outer ring, an impeller inner ring and a plurality of axial flow blades; one end of each axial flow blade is connected with the inner wall of the outer ring of the impeller, the other end of each axial flow blade is connected with the outer wall of the inner ring of the impeller, and a plurality of axial flow blades are circumferentially distributed by taking the center shaft of the inner ring of the impeller as the shaft.
In the centrifugal wind wheel, the centrifugal blades are bent to form an inner cambered surface and an outer cambered surface, and the inner cambered surface of each centrifugal blade and the outer cambered surface of the other adjacent centrifugal blade form an air channel; the axial flow blades are twisted, the side edges of the two sides of the axial flow blades are bent to the same side, and the bending direction of the axial flow blades is the same as that of the centrifugal blades.
In the centrifugal wind wheel, the air inlet protrudes towards the air inlet side, so that the wheel cover forms a boss; and the opening edge of the air inlet is provided with an air inlet ring, and the outer wall of the impeller outer ring is connected with the inner wall of the air inlet ring.
In the centrifugal wind wheel, an installation table is arranged in the middle of the wheel disc, and the installation table is sunken towards the air inlet side, so that the wheel disc forms a concave cavity; the protruding distance of the air inlet is matched with the recessed distance of the mounting table.
In the centrifugal wind wheel, the impeller and the wheel cover are integrally formed.
In the centrifugal wind wheel, the wheel disc, the wheel cover and the impeller are coaxially arranged.
One technical scheme of the utility model has the following beneficial effects:
The centrifugal wind wheel is further provided with an impeller on the basis of the original wind wheel, airflow firstly works through the impeller to lift the wind speed and the pressure head, then works through the centrifugal blades to continuously lift the wind speed and the pressure head until the airflow is thrown out of the centrifugal wind wheel. Under the condition that the shapes of a wheel disc, a wheel cover and a metal framework of the original wind wheel are not changed, the working capacity of the wind wheel is enhanced, the wind quantity and the pressure head of the wind wheel can be greatly improved, the miniaturized design is realized, and the novel wind wheel is used for small-size large-wind-quantity application scenes.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present utility model;
FIG. 2 is a schematic view of the other side of the embodiment of FIG. 1;
FIG. 3 is a schematic view of the impeller in one embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of one embodiment of the present utility model;
In the accompanying drawings: the centrifugal impeller comprises a wheel disc 1, a wheel cover 2, an impeller 3 and centrifugal blades 4;
A cavity 10; a mounting table 11; an air inlet 20; an air inlet ring 21; an impeller outer ring 31, an impeller inner ring 32, and axial flow blades 33.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, the present utility model provides a centrifugal wind wheel, which comprises a wheel disc 1, a wheel cover 2, an impeller 3 and a plurality of centrifugal blades 4; the centrifugal blades 4 are arranged between the wheel cover 2 and the wheel disc 1, the centrifugal blades 4 are circumferentially distributed by taking the central axes of the wheel cover 2 and the wheel disc 1 as axes, one ends of the centrifugal blades 4 face the central axis of the wheel disc 1, and the other ends of the centrifugal blades 4 face the peripheries of the wheel cover 2 and the wheel disc 1; the middle part of the wheel cover 2 is provided with an air inlet 20, and the impeller 3 is arranged in the air inlet 20.
The centrifugal wind wheel is further provided with an impeller 3 on the basis of the original wind wheel, airflow firstly works through the impeller 3, and after the wind speed and the pressure head are lifted, the airflow further works through the centrifugal blades 4, and the wind speed and the pressure head are continuously lifted until the airflow is thrown out of the centrifugal wind wheel. Under the condition that the shapes of a wheel disc, a wheel cover and a metal framework of the original wind wheel are not changed, the working capacity of the wind wheel is enhanced, the wind quantity and the pressure head of the wind wheel can be greatly improved, the miniaturized design is realized, and the novel wind wheel is used for small-size large-wind-quantity application scenes.
Specifically, the impeller 3 includes an impeller outer ring 31, an impeller inner ring 32, and a plurality of axial flow blades 33; one end of each axial flow blade 33 is connected with the inner wall of the impeller outer ring 31, the other end of each axial flow blade 33 is connected with the outer wall of the impeller inner ring 32, and a plurality of axial flow blades 33 are circumferentially distributed by taking the central axis of the impeller inner ring 32 as an axis.
The impeller 3 is composed of an impeller outer ring 31, axial flow blades 33, and an impeller inner ring 32. When the centrifugal wind wheel rotates, the axial flow blades 33 rotate along with the rotation of the centrifugal wind wheel, and generate air flow, and the air flow works through the axial flow blades 33, so that the wind speed and the pressure head are improved. The impeller outer ring 31 is fixedly connected to the air inlet 20, and the impeller inner ring 32 is matched with the impeller outer ring 31 for fixing the axial flow blades 33. In addition, the impeller inner ring 32 is hollow, and the air flow can flow through the impeller inner ring 32.
Specifically, the centrifugal blades 4 are arranged in a bending manner to form an inner cambered surface and an outer cambered surface, and the inner cambered surface of each centrifugal blade 4 and the outer cambered surface of the other adjacent centrifugal blade 4 form an air channel; the axial flow blades 33 are twisted, and both side edges of the axial flow blades 33 are bent to the same side, and the bending direction of the axial flow blades 33 is the same as the bending direction of the centrifugal blades 4.
The centrifugal blades 4 are arranged in a bending mode, the obstruction of the centrifugal blades 4 to airflow is reduced in the rotation process, the centrifugal wind wheel is helped to throw out airflow, and the working efficiency of the centrifugal wind wheel is improved. Similarly, the axial flow blades 33 are twisted, and the axial flow blades 33 rotate along with the centrifugal wind wheel and draw fluid into the centrifugal wind wheel to increase the air inlet quantity. The bending direction of the axial flow blades 33 is the same as that of the centrifugal blades 4, which is beneficial to gas flow and avoids the turbulence generated by the gas flow when the centrifugal wind wheel rotates so as to reduce the working efficiency of the centrifugal wind wheel.
Further, the air inlet 20 protrudes toward the air inlet side, so that the wheel cover 2 forms a boss; and the inlet edge of the air inlet 20 is provided with an air inlet ring 21, and the outer wall of the impeller outer ring 31 is connected with the inner wall of the air inlet ring 21.
By adopting the structure, the wheel cover 2 is in a boss shape, which is more beneficial to gas flow, increases the airflow entering the centrifugal wind wheel and the airflow thrown out of the centrifugal wind wheel, and avoids the mutual interference of two airflows. The air inlet ring 21 provides a mounting position for the impeller outer ring 31, and serves the purpose of fixing the impeller 3.
Further, a mounting table 11 is arranged in the middle of the wheel disc 1, and the mounting table 11 is recessed towards the air inlet side, so that the wheel disc 1 forms a concave cavity 10; the protruding distance of the air inlet 20 is matched with the recessed distance of the mounting table 11.
The mounting table 11 is used for being connected with the driving end of an external driving device, and the external driving device drives the centrifugal wind wheel to integrally rotate through the mounting table 11. The mounting table 11 is recessed to the air intake side so that the leeward side of the wheel disc 1 forms a cavity 10. By adopting the structure, the volume of the air duct is reduced, so that air flow can be rapidly discharged from the air duct, and the working efficiency of the centrifugal wind wheel is improved.
Specifically, the impeller 3 is integrally formed with the shroud 2. By adopting the structure, when the centrifugal wind wheel rotates, the impeller 3 and the wheel cover 2 synchronously rotate, so that the purposes of lifting the wind speed and the pressure head by the impeller 3, acting through the centrifugal blades 4 and continuously lifting the wind speed and the pressure head are realized.
Specifically, the wheel disc 1, the wheel cover 2 and the impeller 3 are coaxially arranged. By adopting the structure, the center points of the wheel disc 1, the wheel cover 2 and the impeller 3 are overlapped on the same straight line, so that the situation that the centrifugal wind wheel swings due to different gravity centers during rotation is prevented, and the centrifugal wind wheel is more stable in the working process.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of this specification without the exercise of inventive faculty, and such equivalent modifications and alternatives are intended to be included within the scope of the utility model as defined in the claims.
Claims (5)
1. The centrifugal wind wheel is characterized by comprising a wheel disc, a wheel cover, an impeller and a plurality of centrifugal blades; the centrifugal blades are arranged between the wheel cover and the wheel disc, the centrifugal blades are circumferentially distributed by taking the central axes of the wheel cover and the wheel disc as axes, one end of each centrifugal blade faces the central axis of the wheel disc, and the other end of each centrifugal blade faces the peripheries of the wheel cover and the wheel disc; the middle part of the wheel cover is provided with an air inlet, and the impeller is arranged in the air inlet;
The impeller comprises an impeller outer ring, an impeller inner ring and a plurality of axial flow blades; one end of each axial flow blade is connected with the inner wall of the outer ring of the impeller, the other end of each axial flow blade is connected with the outer wall of the inner ring of the impeller, and a plurality of axial flow blades are circumferentially distributed by taking the central shaft of the inner ring of the impeller as the shaft;
The centrifugal blades are bent to form an inner cambered surface and an outer cambered surface, and the inner cambered surface of each centrifugal blade and the outer cambered surface of the other adjacent centrifugal blade form an air channel; the axial flow blades are twisted, the side edges of the two sides of the axial flow blades are bent to the same side, and the bending direction of the axial flow blades is the same as that of the centrifugal blades.
2. The centrifugal wind wheel according to claim 1, wherein the air inlet is protruded to an air inlet side so that the wheel cover forms a boss; and the opening edge of the air inlet is provided with an air inlet ring, and the outer wall of the impeller outer ring is connected with the inner wall of the air inlet ring.
3. The centrifugal wind wheel according to claim 2, wherein a mounting table is arranged in the middle of the wheel disc, and the mounting table is recessed towards the air inlet side, so that the wheel disc forms a concave cavity; the protruding distance of the air inlet is matched with the recessed distance of the mounting table.
4. A centrifugal wind wheel according to claim 1, wherein the impeller is integrally formed with the shroud.
5. A centrifugal wind wheel according to claim 1, wherein the wheel disc, shroud and impeller are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322617536.5U CN221096945U (en) | 2023-09-25 | 2023-09-25 | Centrifugal wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322617536.5U CN221096945U (en) | 2023-09-25 | 2023-09-25 | Centrifugal wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096945U true CN221096945U (en) | 2024-06-07 |
Family
ID=91315981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322617536.5U Active CN221096945U (en) | 2023-09-25 | 2023-09-25 | Centrifugal wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096945U (en) |
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2023
- 2023-09-25 CN CN202322617536.5U patent/CN221096945U/en active Active
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