CN201475040U - Centrifugal impeller with changeable blade height - Google Patents
Centrifugal impeller with changeable blade height Download PDFInfo
- Publication number
- CN201475040U CN201475040U CN2009202090596U CN200920209059U CN201475040U CN 201475040 U CN201475040 U CN 201475040U CN 2009202090596 U CN2009202090596 U CN 2009202090596U CN 200920209059 U CN200920209059 U CN 200920209059U CN 201475040 U CN201475040 U CN 201475040U
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- blade
- hub
- shroud
- disk
- disc
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Abstract
The utility model relates to a centrifugal impeller with the changeable blade height, comprising a front disc, a blade, a back disc and a hub, wherein the blade is fixedly arranged between the front disc and the back disc, and the hub is arranged on the middle of the back disc; the specifications of the front disc, the back disc and the hub are standard, the blade has different specifications on the height direction, and is selectively arranged with the front disc and the back disc. The utility model has the advantages that the other parts are designed with standard, and the blade is designed with differentiation, thus realizing larger performance range, greatly reducing the difference of the arrangement, connection and assembly, effectively improving the economical efficiency and bringing more convenience for the engineering period.
Description
Technical field
The utility model relates to the variable receded disk impeller of a kind of blade height, blade by the configuration different heights is realized bigger performance output area and more optional performance point, the impeller of this form is widely used, and is particularly useful for the occasion that type of belt drive and mounting type have more restriction.
Background technique
Blower fan be will rotation mechanical energy convert gas pressure energy and kinetic energy to, and the general machinery equipment that gas delivery is gone out.Centrifugal blower is common in a blower fan kind, all is widely used in all trades and professions.
For different application different performance requirements is often arranged, need to select dissimilar products to realize.Existing product is owing to the restriction of performance range, and type selecting result's the product type and the span of specification are all bigger, and auxiliary work is loaded down with trivial details, also produces in engineering and repeats work in a large number, may cause tangible cost variance.
Summary of the invention
The receded disk impeller that provides a kind of blade height variable is provided technical problem to be solved in the utility model, under limiting, certain condition passes through to adopt the blade of different heights, provide wider output performance, and more property is selected the raising standardization.
The utility model solves the problems of the technologies described above the technological scheme of being taked: the variable receded disk impeller of a kind of blade height, be fixed in the spiral case, form by shroud, blade, hub disk and wheel hub installation, described vanes fixed is installed between shroud and the hub disk, wheel hub is installed in the hub disk middle part, and wherein, shroud, hub disk and wheel hub are standard size, blade has different size on short transverse, blade and hub disk and shroud fixed installation.
The utility model carries out the differentiation design to blade, is arranged to the specification of multiple different heights, realizes different performance parameters, realizes providing more optional performance point by wider output performance under same diameter; Simultaneously shroud, hub disk and wheel hub are carried out standardized designs, except that need cooperate at the different impeller height change spiral case degree of depth, do not change the design specification of miscellaneous part.The blade of different heights cooperates shroud, hub disk and wheel hub to install and use, and realizes bigger output performance scope and more optional performance point.
On the basis of such scheme, described blade is flat backward leaning vane, and shroud is a globoidal structure, and hub disk is a plane structure, fixes with the continuous welding form between blade and shroud and the hub disk.It adopts the arc shroud, can improve air-flow, raise the efficiency, reduces noise.
On the basis of such scheme, described wheel hub and hub disk fix with the riveted joint form.
The beneficial effects of the utility model are:
The utility model is by adopting standardized designs to miscellaneous part, blade is adopted the differentiation design, for more convenient engineering phase provides, when realizing bigger performance range, obviously reduce the difference of installation, connection and supporting part, effectively raise economic and practical.
Description of drawings
Fig. 1 is a main TV structure schematic representation of the present utility model.
Fig. 2 cuts open structural representation for side of the present utility model.
Fig. 3 cuts open structural representation for embodiment 1 side.
Fig. 4 is embodiment 1 a performance curve schematic representation.
Fig. 5 cuts open structural representation for embodiment 2 side.
Fig. 6 is embodiment 2 a performance curve schematic representation.
Fig. 7 cuts open structural representation for embodiment 3 side.
Fig. 8 is embodiment 3 a performance curve schematic representation.
1-shroud 2-blade
3-hub disk 4-wheel hub
Embodiment
Embodiment
Seeing also Fig. 1 is that main TV structure schematic representation of the present utility model and Fig. 2 are shown in the side-looking structural representation of the present utility model, the variable receded disk impeller of a kind of blade height, be fixed in the spiral case, form by shroud 1, blade 2, hub disk 3 and wheel hub 4 installations, described blade 2 is fixedly mounted between shroud 1 and the hub disk 2 with the continuous welding form, wheel hub 4 is installed in hub disk 3 middle parts with the riveted joint form, wherein, shroud 1, hub disk 3 and wheel hub 4 are standard size, and blade 2 has different size on short transverse, directly and shroud 1 and hub disk 3 install.
Working principle is:
By selecting the blade of different heights, the i.e. for a change import of blade and exit width, cross-sectional flow area changes, and known blade exit width is directly proportional with flow coefficient with the ratio of impeller outer diameter, so the variation of blade exit width will make the output performance of impeller change.
Embodiment 1
See also Fig. 3 and cut open structural representation and Fig. 4 for shown in embodiment 1 the performance curve schematic representation for embodiment 1 side, the height of blade 2 is H1, this moment, the exit width of blade 2 was bigger, air quantity scope and limit air quantity that impeller provided are bigger, and blast scope and limit blast less (shown in Fig. 4 curve).
See also Fig. 5 and cut open structural representation and Fig. 6 for shown in embodiment 2 the performance curve schematic representation for embodiment 2 side, the height of blade 2 is H2, this moment, the exit width of blade 2 was moderate, air quantity scope and limit air quantity that impeller provided are moderate, and blast scope and limit blast moderate (shown in Fig. 6 curve)
Embodiment 3
See also Fig. 7 and cut open structural representation and Fig. 8 for shown in embodiment 3 the performance curve schematic representation for embodiment 3 side, the height of blade 2 is H3, this moment, blade 2 exit widths were less, and the air quantity scope that impeller provided is little, and blast scope big (shown in Fig. 8 curve).
Claims (3)
1. variable receded disk impeller of blade height, be fixed in the spiral case, form by shroud, blade, hub disk and wheel hub installation, it is characterized in that: described vanes fixed is installed between shroud and the hub disk, wheel hub is installed in the hub disk middle part, and wherein, shroud, hub disk and wheel hub are standard size, blade has different size on short transverse, blade and hub disk and shroud fixed installation.
2. the variable receded disk impeller of blade height according to claim 1 is characterized in that: described blade is flat backward leaning vane, and shroud is a globoidal structure, and hub disk is a plane structure, fixes with the continuous welding form between blade and shroud and the hub disk.
3. the variable receded disk impeller of blade height according to claim 1 and 2, it is characterized in that: described wheel hub and hub disk fix with the riveted joint form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090596U CN201475040U (en) | 2009-09-02 | 2009-09-02 | Centrifugal impeller with changeable blade height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090596U CN201475040U (en) | 2009-09-02 | 2009-09-02 | Centrifugal impeller with changeable blade height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475040U true CN201475040U (en) | 2010-05-19 |
Family
ID=42411287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202090596U Expired - Lifetime CN201475040U (en) | 2009-09-02 | 2009-09-02 | Centrifugal impeller with changeable blade height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475040U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360150A (en) * | 2019-07-08 | 2019-10-22 | 珠海格力电器股份有限公司 | Wind wheel, centrifugal fan and air conditioner indoor unit |
| CN114109894A (en) * | 2021-11-05 | 2022-03-01 | 英飞同仁(江苏)风机有限公司 | Impeller shaft disc for fan assembly |
-
2009
- 2009-09-02 CN CN2009202090596U patent/CN201475040U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360150A (en) * | 2019-07-08 | 2019-10-22 | 珠海格力电器股份有限公司 | Wind wheel, centrifugal fan and air conditioner indoor unit |
| CN114109894A (en) * | 2021-11-05 | 2022-03-01 | 英飞同仁(江苏)风机有限公司 | Impeller shaft disc for fan assembly |
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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: 20100519 |
|
| CX01 | Expiry of patent term |