CN204419689U - A kind of impeller of novel current stabilization centrifugal pump - Google Patents
A kind of impeller of novel current stabilization centrifugal pump Download PDFInfo
- Publication number
- CN204419689U CN204419689U CN201520007169.XU CN201520007169U CN204419689U CN 204419689 U CN204419689 U CN 204419689U CN 201520007169 U CN201520007169 U CN 201520007169U CN 204419689 U CN204419689 U CN 204419689U
- Authority
- CN
- China
- Prior art keywords
- impeller
- blade
- back shroud
- centrifugal pump
- current stabilization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000006641 stabilisation Effects 0.000 title claims abstract description 9
- 238000011105 stabilization Methods 0.000 title claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 229920003266 Leaf® Polymers 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model proposes a kind of impeller of novel current stabilization centrifugal pump, comprise blade and back shroud of impeller, blade is arranged at also takes turns on back shroud, and described blade comprises four linear leafs, and four linear leaf circumference equidistantly distributions.As long as confirm most suitable arc transition value by the circular arc of the joint designing blade and back shroud of impeller.The joint of blade and back shroud of impeller is circular sliding slopes, and the parameter of this circular arc and the height of blade and impeller outlet diameter determine jointly.The utility model can improve blade contact with back shroud of impeller near Flow Distribution, make streamline distribution and pressure distribution more even, adverse pressure gradient reduces to some extent, improves centrifugal pump performance.
Description
Technical field
The utility model belongs to turbomachine field, relates to centrifugal pump, is specifically related to a kind of impeller of novel current stabilization centrifugal pump.
Background technique
Centrifugal pump, as one of topmost power plant in the present age, is widely used in the sophisticated technology field such as all departments and Aero-Space of national economy.Improve the efficiency of centrifugal pump, can finite energy resource be made full use of, the economic benefit of raising.Therefore, improve research and the design level of centrifugal pump, have important impact to the national economic development, energy saving and environmental protection.Turbomachine mainly refers to the working machine adopting liquid as medium, mainly centrifugal pump.Pump is the one of turbomachine, is also the universal machine applied widely, and, just there is the work of pump in every field having flow of fluid.Along with the development of science and technology, the application of pump expands rapidly, and according to country variant statistics, the power consumption of pump all accounts for 1/5 of various countries' gross generation, and the power consumption of visible pump is huge, thus improves pump technical merit significant to energy saving.
Centrifugal pump is in running, and current can produce the Complex Phenomena in Vertical Bell Jars such as friction, collision, Secondary Flow, backflow, whirlpool through parts such as entrance, impeller, spiral cases.Impeller is the operating important flow passage components of centrifugal pump.The runner of centrifugal pump is diffusion admittance, forms boundary layer separation, and be also easier to occur whirlpool, Secondary Flow and jet-wake phenomenon in runner exit part in diffusion admittance than being easier to.Whirlpool, Secondary Flow and jet-wake phenomenon have larger impact to centrifugal pump performance, and the mobility status therefore improved in runner has larger impact to the centrifugal pump performance of raising.
Summary of the invention
The purpose of this utility model is the deficiency for existing research, and provide a kind of impeller of novel current stabilization centrifugal pump, the mobility status of the centrifugal pump after improvement near blade and back shroud of impeller obtains obvious improvement.
The utility model comprises a kind of impeller of novel current stabilization centrifugal pump, comprise blade and back shroud of impeller, blade is arranged on blade described on back shroud of impeller and comprises four linear leafs, and four linear leaf circumference equidistantly distributions, described blade and the joint of back shroud of impeller adopt one section of smooth arc transition, radius of arc parameter is determined jointly by blade height and impeller diameter, and relation is: R=0.35* (D
1/ h), wherein R is radius of arc, D
1for impeller outlet diameter, h is blade height.
the beneficial effects of the utility model:
The utility model is by being optimized the joint of centrifugal blade and wheel disc, the streamline distribution of centrifugal pump near blade contacts with back shroud of impeller, vector distribution can be improved, pressure distribution is made to become even, adverse pressure gradient change also reduces to some extent, reduce the flow phenomenons such as crossing current and whirlpool, internal flow situation makes moderate progress simultaneously.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is that Fig. 1 Leaf contacts with back shroud of impeller magnified partial view.
Fig. 3 be Fig. 2 Leaf contact with back shroud of impeller part sectional drawing.
Description of reference numerals: comprise blade 1, back shroud of impeller 2, blade contacts with impeller bonnet partial arc transition 3.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of impeller of novel current stabilization centrifugal pump comprises blade 1 and back shroud of impeller 2, and its Leaf 1 and back shroud of impeller 2 connecting part magnified partial view are as shown in Figure 2.As shown in Figure 3, the parameter of this circular arc and the height of blade and impeller outlet diameter determine the round-corner transition of Fig. 2 Leaf 1 and back shroud of impeller contact segment jointly, and physical relationship is: R=0.35* (D
1/ h) (wherein R is radius of arc, D
1for impeller outlet diameter, h is blade height).Impeller outlet diameter is D
1=470mm, blade height h=80mm, the radius R=3.82mm of the round-corner transition calculated by above relation;
This novel current stabilization centrifugal pump impeller changes blade and back shroud of impeller joint into arc transition, can effectively improve blade contact with back shroud of impeller near streamline distribution, and neighbouring pressure distribution becomes more even, the change of adverse pressure gradient also reduces to some extent.
Claims (1)
1. the impeller of a novel current stabilization centrifugal pump, comprise blade and back shroud of impeller, blade is arranged on back shroud of impeller, described blade comprises four linear leafs, and four linear leaf circumference equidistantly distributions, it is characterized in that: described blade and the joint of back shroud of impeller adopt one section of smooth arc transition, and radius of arc parameter is determined jointly by blade height and impeller diameter, and relation is: R=0.35* (D
1/ h), wherein R is radius of arc, D
1for impeller outlet diameter, h is blade height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007169.XU CN204419689U (en) | 2015-01-06 | 2015-01-06 | A kind of impeller of novel current stabilization centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007169.XU CN204419689U (en) | 2015-01-06 | 2015-01-06 | A kind of impeller of novel current stabilization centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419689U true CN204419689U (en) | 2015-06-24 |
Family
ID=53470066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007169.XU Expired - Fee Related CN204419689U (en) | 2015-01-06 | 2015-01-06 | A kind of impeller of novel current stabilization centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313982A (en) * | 2016-04-27 | 2017-11-03 | 中国航发常州兰翔机械有限责任公司 | A kind of new radial diffuser component and its manufacture method |
-
2015
- 2015-01-06 CN CN201520007169.XU patent/CN204419689U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313982A (en) * | 2016-04-27 | 2017-11-03 | 中国航发常州兰翔机械有限责任公司 | A kind of new radial diffuser component and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20160106 |