CN102865893A - Reverse thrust circular-arc impeller of high-pressure automatic flow controller - Google Patents
Reverse thrust circular-arc impeller of high-pressure automatic flow controller Download PDFInfo
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- CN102865893A CN102865893A CN2011101897256A CN201110189725A CN102865893A CN 102865893 A CN102865893 A CN 102865893A CN 2011101897256 A CN2011101897256 A CN 2011101897256A CN 201110189725 A CN201110189725 A CN 201110189725A CN 102865893 A CN102865893 A CN 102865893A
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- blade
- impeller
- arc
- fluid
- reverse thrust
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Abstract
The invention relates to a reverse thrust circular-arc impeller of a high-pressure automatic flow controller. The impeller comprises a plurality of blades and a hub, wherein the plurality of blades are arranged on the hub; both ends of an impeller shaft are connected with a shaft sleeve in a rotatable way; and a reverse thrust window is arranged at the root parts of the blades near the hub. The area of the reverse thrust window is 1/10 of the area of an integral blade. The blade 3 is circular-arc concave; and the concave surface of the blade 3 faces the flow direction of fluid in utilization and installation. The circular-arc radius of the circular-arc concave surface of the blade 3 is from 20mm to 30mm. According to the dynamic balance principle of fluid dynamics, the dynamic pressure of the front surface of the blade is equal to that of the back part of the blade. Meanwhile, the blade is made into a fluid-facing circular-arc concave surface which faces the fluid, so that Karman vortices generated when partial fluid which passes through the reverse thrust window in the process of penetrating through the blade better can act on the back surface of the blade of the impeller so as to generate a reverse thrust F1, which is in direct proportion to fluid dynamics and impact force F of the front surface of the blade of the impeller. Accordingly, the dynamics on the blade of the impeller reaches a dynamic balance state.
Description
Technical field
The present invention is the anti-arc impeller that pushes away for high pressure flow auto-controlling apparatus, particularly to the improvement of its structure.
Background technology
At present, high pressure flow auto-controlling apparatus is being widely applied aspect the high pressure underground flooding of oil field owing to itself technology.
The vane type high pressure flow auto-controlling apparatus that adopts at present, impeller is vertical (being also referred to as normal direction) impeller, impeller is planar structure.Its subject matter is: when flow acted on the impeller along pipeline, its impulsive force will make impeller compressing impeller shaft, makes on the impeller shaft inwall that is attached to its axle sleeve tightly, produces thus larger friction of motion and friction force.This friction force will produce three unfavorable factors, and the first starts flow and becomes large; It two makes when being large flow impeller rotation descend; Thereby the relation that makes its revolution and flow is no longer followed original mathematical model rule, increases linear error; It three is that the Trunk Line flow will make when Pulsating Flow is arranged impeller shaft and sleeve lining produce impact friction, increases reproducibility error, affects its life-span and impact friction power.
Summary of the invention
The shortcoming that exists for overcoming above-mentioned prior art the invention provides a kind of new blade wheel structure.
The anti-arc impeller that pushes away of a kind of high pressure flow auto-controlling apparatus, this impeller is comprised of some blades and wheel hub, and some blades are arranged on the wheel hub, and the impeller shaft two ends are rotationally connected axle sleeve; It is characterized in that, have a reaction thrust window at root of blade near wheel hub.
The area of described reaction thrust window is integrated plate blade area 1/10.
Described blade is the circular arc spill, uses when installing, and forward face is met the flow direction to fluid.
In order to reduce and improve friction of motion and the impact friction power between impeller shaft and the sleeve lining, will alleviate as much as possible this kinetic friction force and impact friction power.
The present invention near reaction thrust window of wheel hub processing, arrives the back side of blade at root of blade according to fluid dynamic dynamic balance principle with the blade that makes things convenient for front fluid to pass through impeller, the dynamic pressure at the front of blade and back equates like this; Simultaneously blade is made to meet to meeting of fluid and flowed the circular arc spill, thereby make the segment fluid flow by the reaction thrust window when passing blade, produce the back side that the toll bar whirlpool acts on the blade of impeller better.A thereby reaction thrust F who produces
1, this reaction thrust F
1Be proportional to hydrodynamic force and the impulsive force F of the face of blade of impeller; And then the suffered power of the blade that makes impeller reaches a kind of dynamic equilibrium state, and because this reaction thrust F
1,Thereby impeller shaft is unlikely to and the undue tight friction of sleeve lining, and can produces a slit, be more convenient for fluid media (medium) itself and play effect as lubricant.Structure of the present invention makes impeller operation more steady, and the life-span is larger, and precision is higher, and large-capacity point (upper limit flow) can be larger, and flow range is wider.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is Fig. 1 left views.
1 axle sleeve, 2 impeller shafts, 3 blades, 4 anti-window, 5 wheel hubs of pushing away.
Embodiment
The anti-arc impeller that pushes away of a kind of high pressure flow auto-controlling apparatus, this impeller is comprised of some blades 3 and wheel hub 5, and some blades 3 are arranged on the wheel hub 5, and impeller shaft 2 two ends are rotationally connected axle sleeve 1; Have a reaction thrust window 4 at root of blade near wheel hub 5 places.The area of described reaction thrust window 4 is integrated plate blade area 1/10.Described blade 3 is the circular arc spill, uses when installing, and blade 3 concave surfaces are met the flow direction to fluid.The arc radius of described blade arc spill is 20mm～30mm.
Claims (5)
1. anti-arc impeller that pushes away of high pressure flow auto-controlling apparatus, this impeller is comprised of some blades and wheel hub, and some blades are arranged on the wheel hub, and the impeller shaft two ends are rotationally connected axle sleeve; Have a reaction thrust window at root of blade near wheel hub.
2. according to the anti-arc impeller that pushes away of right 1 described high pressure flow auto-controlling apparatus.
3. it is characterized in that, the area of described reaction thrust window is integrated plate blade area 1/10.
4. according to right 1 or the anti-arc impeller that pushes away of 2 described high pressure flow auto-controlling apparatus, it is characterized in that, described blade is the circular arc spill, uses when installing, and forward face is met the flow direction to fluid.
5. according to the anti-arc impeller that pushes away of right 3 described high pressure flow auto-controlling apparatus, it is characterized in that, the arc radius of described blade arc spill is 20mm～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101897256A CN102865893A (en) | 2011-07-07 | 2011-07-07 | Reverse thrust circular-arc impeller of high-pressure automatic flow controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101897256A CN102865893A (en) | 2011-07-07 | 2011-07-07 | Reverse thrust circular-arc impeller of high-pressure automatic flow controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102865893A true CN102865893A (en) | 2013-01-09 |
Family
ID=47444908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101897256A Pending CN102865893A (en) | 2011-07-07 | 2011-07-07 | Reverse thrust circular-arc impeller of high-pressure automatic flow controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865893A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62237319A (en) * | 1986-04-08 | 1987-10-17 | Ebara Res Co Ltd | Impeller flow meter |
| CN2433437Y (en) * | 2000-08-16 | 2001-06-06 | 宁波风机有限公司 | Impeller of fan |
| CN1595070A (en) * | 2004-07-12 | 2005-03-16 | 天津市第五机床厂 | Front flow guiding apparatus and turbine gas flow measurement device equipped with the same |
| CN202420564U (en) * | 2011-07-07 | 2012-09-05 | 上海一诺仪表有限公司 | Reverse thrust circular arc-shaped impeller of high-pressure flow auto-control instrument |
-
2011
- 2011-07-07 CN CN2011101897256A patent/CN102865893A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62237319A (en) * | 1986-04-08 | 1987-10-17 | Ebara Res Co Ltd | Impeller flow meter |
| CN2433437Y (en) * | 2000-08-16 | 2001-06-06 | 宁波风机有限公司 | Impeller of fan |
| CN1595070A (en) * | 2004-07-12 | 2005-03-16 | 天津市第五机床厂 | Front flow guiding apparatus and turbine gas flow measurement device equipped with the same |
| CN202420564U (en) * | 2011-07-07 | 2012-09-05 | 上海一诺仪表有限公司 | Reverse thrust circular arc-shaped impeller of high-pressure flow auto-control instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |