CN203175953U - Oblique flow centrifugal vane wheel - Google Patents
Oblique flow centrifugal vane wheel Download PDFInfo
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- CN203175953U CN203175953U CN 201320161143 CN201320161143U CN203175953U CN 203175953 U CN203175953 U CN 203175953U CN 201320161143 CN201320161143 CN 201320161143 CN 201320161143 U CN201320161143 U CN 201320161143U CN 203175953 U CN203175953 U CN 203175953U
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Abstract
The utility model relates to the field of ventilating devices and discloses an oblique flow centrifugal vane wheel. The oblique flow centrifugal vane wheel comprises a ring-shaped base plate, a hub, vanes and flow guide rings, wherein the vanes are fixed between the ring-shaped base plate and the flow guide rings; the hub is connected with the inner side of the ring-shaped base plate into a whole; the hub is concentric with the ring-shaped base plate; a cylindrical plastic axle hole sleeve is arranged on the top of the hub and is connected with the hub into a whole; a plurality of heat dissipation holes are formed in the hub; the inlet air angles of the vanes are 5.1 degrees-10 degrees; and the outlet air angles of the vanes are 25 degrees-45 degrees. The oblique flow centrifugal vane wheel has the advantages that the structure is novel, the inlet/outlet air efficiency is high, and the air volume is large.
Description
Technical field
The utility model relates to the ventilation equipment field, relates in particular to a kind of oblique flow centrifugal impeller.
Background technique
The oblique flow centrifugal impeller is product commonly used in the ventilation equipment field, the oblique flow centrifugal impeller comprises ring leaf base plate, wheel hub, blade and baffle liner, vanes fixed is between ring leaf base plate and baffle liner, wheel hub and ring leaf base plate inboard are connected as a single entity, wheel hub is concentric with ring leaf base plate, the center at wheel hub top arranges axle sleeve, and motor shaft passes the rotation of axle sleeve upper shaft hole impeller during use.The deficiency that existing oblique flow centrifugal impeller exists is that turnover wind efficient is low, and air quantity is little.
Summary of the invention
Goal of the invention of the present utility model is in order to enrich the kind of oblique flow centrifugal impeller, to disclose a kind of novel structure, turnover wind efficient height, the oblique flow centrifugal impeller that air quantity is big.
In order to realize above-mentioned purpose, the utility model has adopted following technological scheme:
A kind of oblique flow centrifugal impeller, comprise ring leaf base plate, wheel hub, blade and baffle liner, vanes fixed is between ring leaf base plate and baffle liner, wheel hub and ring leaf base plate inboard are connected as a single entity, wheel hub is concentric with ring leaf base plate, the top of wheel hub is provided with the cylindrical plastic shaft hole sleeve that is connected as a single entity with it, and wheel hub is provided with a plurality of radiation holes; The air intake angle of blade is between 5.1 °-10 °, and the air-out angle of blade is between 25 °-45 °.
As preferably, all air intake angle angles are identical, the air intake angle is air intake surface with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface circular arc tangential line, all air-out angle angles are identical, the air-out angle is outlet air surface with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface circular arc tangential line, and air output is big; Further, the air intake angle angle of blade is 5.8 °, and the air-out angle angle of blade is 29.6 °.
As preferably, blade air intake to outlet air end is distorted shape, the air intake angle of blade is divided into the following air intake angle near the last air intake angle of baffle liner and close ring leaf base plate, and last air intake angle is different with following air intake angle angle, and the angle at last air intake angle and following air intake angle is all between 5.1 °-10 °; The air-out angle of blade is divided into the following air-out angle near the last air-out angle of baffle liner and close ring leaf base plate, and last air-out angle is different with following air-out angle angle, and the angle of last air-out angle and following air-out angle angle is all between 25 °-45 °.Last air intake angle and following air intake angle angle are different and all between 5.1 °-10 °, last air-out angle and following air-out angle angle are different and between equal 25 °-45 °, make the air-out of blade be linear change along the blade height direction, can effectively weaken the noise energy stack, reduce noise, improve the efficient of turnover wind.
As preferably, blade is a kind of in 5,7,8,9, and using scope is the widest.
As preferably, the diameter of ring leaf base plate between 420mm-480mm, the efficient height of air-out.
As preferably, last air intake angle is the air intake surface top end with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface top circular arc tangential line, following air intake angle is air intake surface bottom place with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface bottom circular arc tangential line, last air-out angle is the outlet air surface top end with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface top circular arc tangential line, and following air-out angle is place, outlet air surface bottom with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface bottom circular arc tangential line.
Adopted a kind of oblique flow centrifugal impeller of above-mentioned technological scheme, the air intake angle of blade is between 5.1 °-10 °, and the air-out angle of blade passes in and out the efficient height of wind between 25 °-45 °.The advantage of this oblique flow centrifugal impeller is novel structure, turnover wind efficient height, and air quantity is big.
Description of drawings
Fig. 1: the utility model embodiment's oblique flow centrifugal impeller structural representation.
Fig. 2: the oblique flow centrifugal impeller plan view that baffle liner is not installed among the utility model embodiment.
Embodiment
Below in conjunction with Fig. 1 and Fig. 2 embodiment of the present utility model is made a detailed explanation.
Oblique flow centrifugal impeller as depicted in figs. 1 and 2, comprise ring leaf base plate 1, wheel hub 2, blade 3 and baffle liner 4, blade 3 is fixed between ring leaf base plate 1 and the baffle liner 4, wheel hub 2 is connected as a single entity with ring leaf base plate 1 inboard, wheel hub 2 is concentric with ring leaf base plate 1, the center at wheel hub 2 tops is provided with the cylindrical plastic shaft hole sleeve 5 that is connected as a single entity with it, is useful on the axis hole that connects motor shaft on the shaft hole sleeve 5, and the axis hole impeller that motor shaft passes on the shaft hole sleeve 5 during use is rotated.Wheel hub 2 is provided with a plurality of radiation holes 21, the arrangement of a plurality of radiation holes 21 equidistant rule centered by shaft hole sleeve 5.The air intake angle a angle of blade is between 5.1 °-10 °, and air-out angle b angle is between 25 °-45 °.
The diameter of ring leaf base plate is between 420mm-480mm, blade 3 is 9, blade 3 is vertically fixed between ring leaf base plate and the baffle liner, all air intake angle a angles are identical, air intake angle a is air intake surface with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface circular arc tangential line, all air-out angle b angles are identical, and air-out angle b is outlet air surface with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface circular arc tangential line.Air intake angle a angle is 5.8 °, and air-out angle b angle is 29.6 °, with respect to unidimensional and air intake angle a and air-out angle b angle not the oblique flow centrifugal impeller air quantity in above-mentioned scope per hour increase by 30 cubic metres at least.
Above-mentioned blade 3 also can be a kind of in 5,7,8.Above-mentioned blade 3 all right out of plumb, be that blade 3 air intakes to outlet air end is distorted shape, the air intake angle of blade is divided into the following air intake angle near the last air intake angle of baffle liner and close ring leaf base plate, last air intake angle is different with following air intake angle angle, the angle at last air intake angle and following air intake angle is all between 5.1 °-10 °, the air-out angle of blade is divided into the following air-out angle near the last air-out angle of baffle liner and close ring leaf base plate, last air-out angle is different with following air-out angle angle, the angle of last air-out angle and following air-out angle angle is all between 25 °-45 °, for example going up the air intake angle is 5.8 °, following air intake angle is 6 °, and last air intake angle is 29 °, 31 ° at following air-out angle.Last air intake angle is the air intake surface top end with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface top circular arc tangential line, following air intake angle is air intake surface bottom place with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface bottom circular arc tangential line, last air-out angle is the outlet air surface top end with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface top circular arc tangential line, and following air-out angle is place, outlet air surface bottom with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface bottom circular arc tangential line.Last air intake angle is different with following air intake angle angle, and last air-out angle is different with following air-out angle angle, makes the air-out of blade 3 be linear change along the blade height direction, can effectively weaken the noise energy stack, reduces noise 2dB at least.
Claims (7)
1. oblique flow centrifugal impeller, comprise ring leaf base plate, wheel hub, blade and baffle liner, vanes fixed is between ring leaf base plate and baffle liner, wheel hub and ring leaf base plate inboard are connected as a single entity, wheel hub is concentric with ring leaf base plate, the top of wheel hub is provided with the cylindrical plastic shaft hole sleeve, and wheel hub is provided with a plurality of radiation holes; It is characterized in that the air intake angle of blade between 5.1 °-10 °, the air-out angle of blade is between 25 °-45 °.
2. a kind of oblique flow centrifugal impeller according to claim 1, it is characterized in that blade is vertically fixed between ring leaf base plate and the baffle liner, all air intake angle angles are identical, the air intake angle is air intake surface with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface circular arc tangential line, all air-out angle angles are identical, and the air-out angle is outlet air surface with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface circular arc tangential line.
3. a kind of oblique flow centrifugal impeller according to claim 1, 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 following air intake angle near the last air intake angle of baffle liner and close ring leaf base plate, last air intake angle is different with following air intake angle angle, and the angle at last air intake angle and following air intake angle is all between 5.1 °-10 °; The air-out angle of blade is divided into the following air-out angle near the last air-out angle of baffle liner and close ring leaf base plate, and last air-out angle is different with following air-out angle angle, and the angle of last air-out angle and following air-out angle angle is all between 25 °-45 °.
4. according to claim 1 or 2 or 3 described a kind of oblique flow centrifugal impellers, it is characterized in that blade is a kind of in 5,7,8,9.
5. according to claim 1 or 2 or 3 described a kind of oblique flow centrifugal impellers, it is characterized in that the diameter of ring leaf base plate is between 420mm-480mm.
6. a kind of oblique flow centrifugal impeller according to claim 3, it is characterized in that the air intake angle is the air intake surface top end with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface top circular arc tangential line, following air intake angle is air intake surface bottom place with the opposite tangent direction of fan blade sense of rotation and the angle of blade air intake surface bottom circular arc tangential line, last air-out angle is the outlet air surface top end with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface top circular arc tangential line, and following air-out angle is place, outlet air surface bottom with the opposite tangent direction of fan blade sense of rotation and the angle of blade outlet air surface bottom circular arc tangential line.
7. a kind of oblique flow centrifugal impeller according to claim 2 is characterized in that the air intake angle angle of blade is 5.8 °, and the air-out angle angle of blade is 29.6 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161143 CN203175953U (en) | 2013-04-02 | 2013-04-02 | Oblique flow centrifugal vane wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161143 CN203175953U (en) | 2013-04-02 | 2013-04-02 | Oblique flow centrifugal vane wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175953U true CN203175953U (en) | 2013-09-04 |
Family
ID=49072656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320161143 Expired - Lifetime CN203175953U (en) | 2013-04-02 | 2013-04-02 | Oblique flow centrifugal vane wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175953U (en) |
-
2013
- 2013-04-02 CN CN 201320161143 patent/CN203175953U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |