CN104929972A - High-lift spiral blade impeller - Google Patents
High-lift spiral blade impeller Download PDFInfo
- Publication number
- CN104929972A CN104929972A CN201510179366.4A CN201510179366A CN104929972A CN 104929972 A CN104929972 A CN 104929972A CN 201510179366 A CN201510179366 A CN 201510179366A CN 104929972 A CN104929972 A CN 104929972A
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- China
- Prior art keywords
- blade
- choma
- impeller
- lift
- blades
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Abstract
The invention relates to a high-lift spiral blade impeller. The high-lift spiral blade impeller comprises a pump shaft sleeve, an impeller ring and blades, wherein the impeller ring coats the end part of the pump shaft sleeve, and is provided with the blades; the blades are spiral; spiral wrap angles of the blades are 200-220 degrees; inlet installation angles of the blades are 10-12 degrees; outlet installation angles of the blades are 14-18 degrees; the impeller ring is conical; a taper angle of the impeller ring is 6-10 degrees; the impeller ring is 40-52 mm wide; and multiple key holes are uniformly formed in the impeller ring. The high-lift spiral blade impeller improves the conveying capacity of a pump for conveying mediums with high air content.
Description
Technical field
The present invention relates to axial-flow pump technical field, particularly relate to a kind of high-lift helical blade impeller.
Background technique
Axial-flow pump impeller mostly in the market is stainless steel material and makes, for being arranged vertically between its impeller blade and choma, in the process of work, in the process that its impeller rotates with pump shaft, centrifugal motion is there is in fed sheet of a media near impeller, cause the ability of impeller fed sheet of a media to decline, particularly carry the media capabilities that air content is high lower; At exploitation high gas-oil ratio (HGOR) oil reservoir, when gas-liquid two-phase fluid MEDIA FLOW is when the impeller of conventional vane pump, the liquid phase that density is larger is thrown out of under the influence of centrifugal force, the gas phase that density is less is then aggregated in the low pressure area near impeller hub entrance, form dead band, along with the dead space volume in the increase impeller of vane pump operating time increases at leisure, final whole runner will be filled by gas phase completely, causes pump to lose the job ability.
Summary of the invention
The object of this invention is to provide a kind of high-lift helical blade impeller, solve transport pump ability, fed sheet of a media in prior art near impeller, there is centrifugal motion problem;
The technological scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of high-lift helical blade impeller, comprise pump shaft cover, choma and blade, described choma is sleeved on pump sleeve end, and choma is provided with blade, described blade is helical, the spiral cornerite of described blade is 200-220 °, and the stagger angle of described blade is 10-12 °, and the exit installation angle of blade is 14-18 °, described choma is conical, and the cone angle of choma is 6-10 °, the width of described choma is 40-52mm, and choma evenly has multiple keyhole;
On the basis of technique scheme, the present invention can also do following improvement:
Further, described blade is 3-5 sheet, adopts the beneficial effect of this step to be to make pump have enough flow areas, ensures to have enough flows;
Further, described choma end has groove, and the degree of depth of described groove is 1-2mm, adopts the beneficial effect of this step to be when mounted, ensures that impeller and other assembling sets leave gap, prevents friction, impeller is produced to the efficiency damaging and affect impeller work;
Further, on described blade, the number of degrees of the established angle of each point are wave-like type distribution, adopt the beneficial effect of this step to be ensure that the ability of high air content medium carried by axial-flow pump;
Further, the linearly rule change of described vane thickness, the thickness of blade according to arrive little distribution more from small to large, blade outlet and entrance face thinner, adopt the beneficial effect of this step to be the dissection of increase to bubble;
The present invention adopts the impeller be in tilted layout, the blade of impeller tilts along pump shaft moving direction, reducing fed sheet of a media with the centrifugal motion in wheel rotation process, by controlling the slanted angle between impeller and choma, improving conveying capacity when impeller carries high air content;
The invention has the beneficial effects as follows:
1. the present invention is by controlling the inclination angle along pump shaft moving direction between blade and choma, improves the ability that high air content medium carried by axial-flow pump, solves axial-flow pump well and carries the problem that high air content media capabilities is low;
2. choma of the present invention adopts cone structure, and fluid is entered by path end face, and bigger diameter end surface current goes out, and through the fluid of supercharging, along with the minimizing of runner area of passage, pressure increases further, and pressurized effect is more remarkable compared with original cylindrical choma;
3. blade of the present invention outlet and entrance face blade thinner, the importing of thin blade for fluid and the dissection to bubble will show increase.
Accompanying drawing explanation
Fig. 1 is the shaft side figure of a kind of high-lift helical blade impeller described in the specific embodiment of the invention;
Fig. 2 is the plan view of a kind of high-lift helical blade impeller described in the specific embodiment of the invention 1;
Fig. 3 is the plan view of a kind of high-lift helical blade impeller described in the specific embodiment of the invention 2;
In accompanying drawing, the list of parts representated by each label is as follows:
1, pump shaft cover, 2, choma, 3, blade, 4, keyhole, 5, groove.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention;
Embodiment 1:
A kind of high-lift helical blade impeller, comprise pump shaft cover 1, choma 2 and blade 3, described choma 2 is sleeved on pump shaft and overlaps 1 end, and choma 2 is provided with blade 3, described blade 3 is helical, the spiral cornerite of described blade 3 is 200 °, the stagger angle α of described blade 3 is 10 °, leaf, the exit installation angle β of 3 is 14 °, described choma 2 is conical, and the cone angle gamma of choma 2 is 6 °, the width b of described choma is 40mm, and choma 2 evenly has multiple keyhole 4, described blade 3 is 3-5 sheet, described choma 2 end has groove 5, the degree of depth of described groove 5 is 1mm, on described blade 3, the number of degrees of the established angle of each point are wave-like type distribution, the linearly rule change of described blade 3 thickness, the thickness of blade is according to arriving little distribution more from small to large, blade 3 outlet and entrance face thin,
Embodiment 2:
A kind of high-lift helical blade impeller, comprise pump shaft cover 1, choma 2 and blade 3, described choma 2 is sleeved on pump shaft and overlaps 1 end, and choma 2 is provided with blade 3, described blade 3 is helical, the spiral cornerite of described blade 3 is 220 °, the stagger angle α ' of described blade 3 is 12 °, the exit installation angle β ' of blade 3 is 18 °, described choma 2 is conical, and the cone angle gamma of choma 2 ' be 10 °, the width b ' of described choma 2 is 52mm, and choma 2 evenly has multiple keyhole, described blade 3 is 3-5 sheet, described choma 2 end has groove 5, the degree of depth of described groove 5 is 2mm, on described blade 3, the number of degrees of the established angle of each point are wave-like type distribution, the linearly rule change of described blade 3 thickness, the thickness of blade 3 is according to arriving little distribution more from small to large, blade 3 outlet and entrance face thinner,
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a high-lift helical blade impeller, comprises pump shaft cover, choma and blade, and described choma is sleeved on pump sleeve end, and choma is provided with blade, described blade is helical, it is characterized in that, the spiral cornerite of described blade is 200-220 °, the stagger angle of described blade is 10-12 °, the exit installation angle of blade is 14-18 °, and described choma is conical, and the cone angle of choma is 6-10 °, the width of described choma is 40-52mm, and choma evenly has multiple keyhole.
2. the high-lift helical blade impeller of one according to claim 1, is characterized in that, described blade is 3-5 sheet.
3. the high-lift helical blade impeller of one according to claim 2, is characterized in that, described choma end has groove, and the degree of depth of described groove is 1-2mm.
4. the high-lift helical blade impeller of one according to claim 3, is characterized in that, on described blade, the number of degrees of the established angle of each point are wave-like type distribution.
5. the high-lift helical blade impeller of one according to claim 4, is characterized in that, the linearly rule change of described vane thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179366.4A CN104929972A (en) | 2015-04-15 | 2015-04-15 | High-lift spiral blade impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179366.4A CN104929972A (en) | 2015-04-15 | 2015-04-15 | High-lift spiral blade impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104929972A true CN104929972A (en) | 2015-09-23 |
Family
ID=54117311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510179366.4A Pending CN104929972A (en) | 2015-04-15 | 2015-04-15 | High-lift spiral blade impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104929972A (en) |
-
2015
- 2015-04-15 CN CN201510179366.4A patent/CN104929972A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150923 |
|
| WD01 | Invention patent application deemed withdrawn after publication |