CN102042261A - Sweepback-free conical variable-pitch inducer - Google Patents
Sweepback-free conical variable-pitch inducer Download PDFInfo
- Publication number
- CN102042261A CN102042261A CN2009102293152A CN200910229315A CN102042261A CN 102042261 A CN102042261 A CN 102042261A CN 2009102293152 A CN2009102293152 A CN 2009102293152A CN 200910229315 A CN200910229315 A CN 200910229315A CN 102042261 A CN102042261 A CN 102042261A
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- Prior art keywords
- sweepback
- inducer
- pitch
- blade
- variable
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Abstract
The invention relates to a sweepback-free conical variable-pitch inducer, in particular to a liquor pump inducer. Spiral blades which are sweepback-free conical variable-pitch blades are arranged on a hub, and the outer edge of the inducer consisting of the blades is conical, therefore, no sweepback delta beta exists; and inlet ends are in the same axial plane so that the inlet angle and the outlet angle of each blade are easy to adjust. The sweepback-free conical variable-pitch inducer has good anti-cavitation performance, smaller axial structural size, less material consumption and low cost and is suitable for liquor pumps.
Description
Technical field
The present invention relates to the liquid pump inducer, say it is a kind of no sweepback pyramid Variable-pitch Inducers in detail.
Background technique
Existing liquid pump inducer, be on wheel hub, to be provided with the uniform pitch helical blade, after helical blade entrance point radius increases progressively several angle Δ β gradually, its radius equals outlet end outer rim radius, Δ β is called the sweepback angle, entrance point is not on same axial plane, and the inducer outer rim that blade is formed is shaped as cylindrical.This liquid pump inducer, because after helical blade entrance point radius increases progressively several angle Δ β gradually, its radius equals outlet end outer rim radius, have sweepback angle Δ β, entrance point is not on same axial plane, and inlet blade angle and exit angle are difficult for adjusting, anti-cavitation performance is poor, the axial arrangement size is bigger, and consume material is many, the cost height.
Summary of the invention
The technical problem that the present invention solves is, solves blade and has sweepback angle Δ β, and entrance point is not on same axial plane, inlet blade angle and exit angle are difficult for adjusting, and anti-cavitation performance is poor, and the axial arrangement size is bigger, consume material is many, and the problem that cost is high provides a kind of no sweepback angle Δ β, entrance point is on same axial plane, inlet blade angle and exit angle are easily adjusted, and anti-cavitation performance is good, and the axial arrangement size is less, consume material is few, the no sweepback pyramid Variable-pitch Inducers that cost is low.
Technological scheme of the present invention is, is provided with helical blade on wheel hub, and the main structure characteristics are, helical blade is the taper variable-pitch blade at no sweepback angle, and the inducer outer rim of blade composition is shaped as taper.
The invention has the beneficial effects as follows, because helical blade is the taper variable-pitch blade at no sweepback angle, the inducer outer rim that blade is formed is shaped as taper, no sweepback angle Δ β, entrance point is on same axial plane, and inlet blade angle and exit angle are easily adjusted, anti-cavitation performance is good, the axial arrangement size is less, and consume material is few, and cost is low.The present invention is applicable to liquid pump.
Description of drawings
Fig. 1, Fig. 2, Fig. 3 are a kind of structural representations of the present invention, also are a kind of embodiment's schematic representation; Fig. 1 is a plan view of the present invention, plane figure of the present invention during Fig. 2, runner of the present invention axis projection during Fig. 3.
Embodiment
No sweepback pyramid Variable-pitch Inducers as shown in the figure, wheel hub 1 is provided with helical blade 2, and as can be seen from the figure, wheel hub 1 is provided with two blades.Helical blade 2 is the taper variable-pitch blade at no sweepback angle, the inducer outer rim that blade is formed is shaped as taper, because helical blade 2 is the taper variable-pitch blade at no sweepback angle, the inducer outer rim that blade is formed is shaped as taper, no sweepback angle Δ β, entrance point is on same axial plane, blade 2 inlet angles and exit angle are easily adjusted, and anti-cavitation performance is good, and the axial arrangement size is less, consume material is few, and cost is low.The inlet angle of adjusting blade is littler, exit angle more greatly, can improve the anti-cavitation ability of inducer itself, the fluid lift of minimum simultaneously axial dimension generation maximum.
Claims (1)
1. no sweepback pyramid Variable-pitch Inducers, wheel hub is provided with helical blade, it is characterized in that, and helical blade is the taper variable-pitch blade at no sweepback angle, and the inducer outer rim of blade composition is shaped as taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102293152A CN102042261A (en) | 2009-10-20 | 2009-10-20 | Sweepback-free conical variable-pitch inducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102293152A CN102042261A (en) | 2009-10-20 | 2009-10-20 | Sweepback-free conical variable-pitch inducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102042261A true CN102042261A (en) | 2011-05-04 |
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ID=43908698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102293152A Pending CN102042261A (en) | 2009-10-20 | 2009-10-20 | Sweepback-free conical variable-pitch inducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102042261A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705263A (en) * | 2012-06-21 | 2012-10-03 | 江苏大学 | Optimal design method for inducer with varying pitch of centrifugal pump |
-
2009
- 2009-10-20 CN CN2009102293152A patent/CN102042261A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705263A (en) * | 2012-06-21 | 2012-10-03 | 江苏大学 | Optimal design method for inducer with varying pitch of centrifugal pump |
| CN102705263B (en) * | 2012-06-21 | 2014-10-29 | 江苏大学 | Optimal design method for inducer with varying pitch of centrifugal pump |
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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: 20110504 |