CN102996505A - Abrasion-resistant centrifugal pump impeller - Google Patents
Abrasion-resistant centrifugal pump impeller Download PDFInfo
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- CN102996505A CN102996505A CN201210577633XA CN201210577633A CN102996505A CN 102996505 A CN102996505 A CN 102996505A CN 201210577633X A CN201210577633X A CN 201210577633XA CN 201210577633 A CN201210577633 A CN 201210577633A CN 102996505 A CN102996505 A CN 102996505A
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- convex closure
- cover plate
- centrifugal pump
- closure body
- pump impeller
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Abstract
An abrasion-resistant centrifugal pump impeller comprises a jet flow seam type cover plate (1), a convex hull body type blade (2) and a hub (3). A circumferential jet flow seam (4) with the hub (3) as the center is arranged at the position of the edge of the jet flow seam type cover plate (1). The convex hull body type blade (2) is provided with convex hull bodies (5) on the front of the water outlet side and/or the back of the water inlet side of the blade, and a biomorphic imitating convex hull type surface is made. The abrasion-resistant centrifugal pump impeller has the advantage that when a water pump runs, high-speed water flow ejected out of the jet flow seam forms a water seal, and silt in the water is prevented from entering a gap between the impeller and a pump casing, so that a seal ring is free of abrasion. The convex hull body type blade can improve the water flow, and reduces silt abrasion of the blade.
Description
Technical field
The present invention relates to the centrifugal pump technical field, specifically a kind of wear-resisting centrifugal pump impeller.
Background technique
Centrifugal pump is widely used in the fields such as distruting water transregionally, field irrigation, production water supply and sewage.But there are the solid-liquid two-phase flow of abrasion such as Huanghe water etc. to contain Sha Shuishi in conveying; the blade of centrifugal pump impeller, seal ring place serious wear, thus the service behaviour of water pump affected, even cause impeller to damage; water pump is shut down, and causes great economic loss and social influence.
In order to improve the wear-resisting property of impeller, some centrifugal pump impellers have been done a little improvement in design, such as research and development special material seal ring, special material blade etc.But in these methods the material that adopts special, some materials are also relatively expensive, cause cost of production higher, can not be widely used in production, are unfavorable for spread.
Summary of the invention
The purpose of this invention is to provide a kind of wear-resisting centrifugal pump impeller, on the basis of using common used material, by improving blade wheel structure, improve wear-resisting property, increase the service life.
A kind of wear-resisting centrifugal pump impeller comprises: jet seam cover plate 1, convex closure body formula blade 2 and wheel hub 3, described jet seam cover plate 1 edge offers the circumferential jet seam 4 centered by wheel hub 3.
Described jet stitches 4 outer shrouds apart from jet seam cover plate 1 outer rim 10～15mm, and the width of jet seam 4 is 1.0～2.0mm.
Described jet seam 4 is in jet seam cover plate 1 thickness and is in tilted layout, and namely tilts to the cover plate outside from the inboard Parallel to the flow direction of cover plate, and the angle of inclination is to become 30 °～60 ° angles with the wheel hub medial axis.
Described convex closure body formula blade 2 begins arrange 2～5 row convex closure bodies 5 near pressure for vaporization by Parallel to the flow direction from the laterodorsal static pressure of water inlet near impeller inlet by against the current flow path direction and/or convex closure body formula blade 2 from distance water outlet side positive blade tail end 10～20mm.
Every row is distributed with 5～10 convex closure bodies 5 on the described convex closure body formula blade 2.
The height difference on described convex closure body 5 tops and convex closure body formula blade 2 surfaces is 0.5～1.5mm.
The advantage of wear-resisting centrifugal pump impeller of the present invention is:
1, during water pump operation, the high-velocity flow that penetrates from the jet seam forms water seal, stops silt in the water to enter slit between impeller and the pump case, makes seal ring avoid wearing and tearing;
2, current can be improved in the positive imitative biomophic convex closure type surface of adopting of the blade influent side back side and water outlet side, reduce the blade sand erosion;
3, impeller adopts common used material, and is simple in structure, is easy to processing, is convenient to promote.
Therefore the present invention can prevent seal wears effectively, improves the wear-resisting property of blade, thereby improves the bulk life time of impeller, and is convenient to promote.
Description of drawings
Fig. 1 is the structural representation of wear-resisting centrifugal pump impeller.
Fig. 2 is the structural representation of wear-resisting centrifugal pump impeller section.
Fig. 3 is the sectional view with cover plate of jet seam.
Fig. 4 is the structural representation with blade of convex closure body.
Wherein: 1 is jet seam cover plate, and 2 is convex closure body formula blade, and 3 is wheel hub, and 4 are the jet seam, and 5 is the convex closure body.
Embodiment
Embodiment one
Below in conjunction with accompanying drawing, the present invention is further specified: shown in Fig. 1-4, a kind of wear-resisting centrifugal pump impeller comprises: jet seam cover plate 1, convex closure body formula blade 2 and wheel hub 3, described jet seam cover plate 1 edge offers the circumferential jet seam 4 centered by wheel hub 3.
Described jet stitches 4 outer shrouds apart from jet seam cover plate 1 outer rim 13mm, and the width of jet seam 4 is 1.8mm.
Described jet seam 4 is in jet seam cover plate 1 thickness and is in tilted layout, and namely tilts to the cover plate outside from the inboard Parallel to the flow direction of cover plate, and the angle of inclination is and wheel hub medial axis angle at 45 °.
Described convex closure body formula blade 2 begins to arrange 2 row's convex closure bodies 5 from distance water outlet side positive blade tail end 10mm by flow path direction against the current, and first row is distributed with 5 convex closure bodies 5, and second row is distributed with 6 convex closure bodies 5.
The height difference on described convex closure body 5 tops and convex closure body formula blade 2 surfaces is 1.25mm.
Embodiment two
Below in conjunction with accompanying drawing, the present invention is further specified: shown in Fig. 1-4, a kind of wear-resisting centrifugal pump impeller comprises: jet seam cover plate 1, convex closure body formula blade 2 and wheel hub 3, described jet seam cover plate 1 edge offers the circumferential jet seam 4 centered by wheel hub 3.
Described jet stitches 4 outer shrouds apart from jet seam cover plate 1 outer rim 10mm, and the width of jet seam 4 is 1.0mm.
Described jet seam 4 is in jet seam cover plate 1 thickness and is in tilted layout, and namely tilts to the cover plate outside from the inboard Parallel to the flow direction of cover plate, and the angle of inclination is to become 30 ° of angles with the wheel hub medial axis.
Described convex closure body formula blade 2 begins arrange 3 row convex closure bodies 5 near pressure for vaporization by Parallel to the flow direction from the laterodorsal static pressure of water inlet near impeller inlet, and every row is distributed with 7 convex closure bodies 5.
The height difference on described convex closure body 5 tops and convex closure body formula blade 2 surfaces is 0.5mm.
Embodiment three
Below in conjunction with accompanying drawing, the present invention is further specified: shown in Fig. 1-4, a kind of wear-resisting centrifugal pump impeller comprises: jet seam cover plate 1, convex closure body formula blade 2 and wheel hub 3, described jet seam cover plate 1 edge offers the circumferential jet seam 4 centered by wheel hub 3.
Described jet stitches 4 outer shrouds apart from jet seam cover plate 1 outer rim 15mm, and the width of jet seam 4 is 2.0mm.
Described jet seam 4 is in jet seam cover plate 1 thickness and is in tilted layout, and namely tilts to the cover plate outside from the inboard Parallel to the flow direction of cover plate, and the angle of inclination is to become 60 ° of angles with the wheel hub medial axis.
Described convex closure body formula blade 2 respectively begins arrange 5 row convex closure bodies 5 near pressure for vaporization by Parallel to the flow direction from the laterodorsal static pressure of water inlet near impeller inlet by against the current flow path direction and convex closure body formula blade 2 from distance water outlet side positive blade tail end 10～20mm, first three row is distributed with 9 convex closure bodies 5, and rear two rows are distributed with 10 convex closure bodies 5.
The height difference on described convex closure body 5 tops and convex closure body formula blade 2 surfaces is 1.5mm.
Claims (6)
1. wear-resisting centrifugal pump impeller is characterized in that: comprise jet seam cover plate ⑴, convex closure body formula blade ⑵ and wheel hub ⑶, described jet seam cover plate ⑴ edge offers the circumferential jet seam ⑷ centered by wheel hub ⑶.
2. wear-resisting centrifugal pump impeller as claimed in claim 1 is characterized in that: described jet seam ⑷ outer shroud is apart from jet seam cover plate ⑴ outer rim 10～15mm, and the width of jet seam ⑷ is 1.0～2.0mm.
3. wear-resisting centrifugal pump impeller as claimed in claim 1 or 2, it is characterized in that: described jet seam ⑷ is in jet seam cover plate ⑴ thickness and is in tilted layout, namely tilt to the cover plate outside from the inboard Parallel to the flow direction of cover plate, the angle of inclination is to become 30 °～60 ° angles with the wheel hub medial axis.
4. wear-resisting centrifugal pump impeller as claimed in claim 1 or 2 is characterized in that: described convex closure body formula blade ⑵ from distance water outlet side positive blade tail end 10～20mm by flow path direction and/or convex closure body formula blade ⑵ begin arrange 2～5 row convex closure body ⑸s near pressure for vaporization by Parallel to the flow direction from the laterodorsal static pressure of water inlet near impeller inlet against the current.
5. wear-resisting centrifugal pump impeller as claimed in claim 4 is characterized in that: the upper every row of described convex closure body formula blade ⑵ is distributed with 5～10 convex closure body ⑸.
6. wear-resisting centrifugal pump impeller as claimed in claim 5, it is characterized in that: the height difference on described convex closure body ⑸ top and convex closure body formula blade ⑵ surface is 0.5～1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577633.XA CN102996505B (en) | 2012-12-27 | 2012-12-27 | A kind of abrasion-resistant centrifugal pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577633.XA CN102996505B (en) | 2012-12-27 | 2012-12-27 | A kind of abrasion-resistant centrifugal pump impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102996505A true CN102996505A (en) | 2013-03-27 |
| CN102996505B CN102996505B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210577633.XA Active CN102996505B (en) | 2012-12-27 | 2012-12-27 | A kind of abrasion-resistant centrifugal pump impeller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339269A (en) * | 2021-06-10 | 2021-09-03 | 北京航天石化技术装备工程有限公司 | Centrifugal pump impeller structure for liquid-solid two-phase flow and design method |
| CN118208420A (en) * | 2024-05-22 | 2024-06-18 | 安徽南方化工泵业有限公司 | Centrifugal pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226641A (en) * | 1998-02-17 | 1999-08-25 | 鄢平安 | High speed centrifugal pump |
| US20030025020A1 (en) * | 2001-08-02 | 2003-02-06 | Britzke Robert W. | Wear resistant center feed impact impeller |
| CN101387187A (en) * | 2008-10-30 | 2009-03-18 | 吉林大学 | Bionic non-smooth spiral drill |
| CN202483939U (en) * | 2012-03-21 | 2012-10-10 | 武汉大学 | Double-suction type centrifugal pump runner |
-
2012
- 2012-12-27 CN CN201210577633.XA patent/CN102996505B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226641A (en) * | 1998-02-17 | 1999-08-25 | 鄢平安 | High speed centrifugal pump |
| US20030025020A1 (en) * | 2001-08-02 | 2003-02-06 | Britzke Robert W. | Wear resistant center feed impact impeller |
| CN101387187A (en) * | 2008-10-30 | 2009-03-18 | 吉林大学 | Bionic non-smooth spiral drill |
| CN202483939U (en) * | 2012-03-21 | 2012-10-10 | 武汉大学 | Double-suction type centrifugal pump runner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339269A (en) * | 2021-06-10 | 2021-09-03 | 北京航天石化技术装备工程有限公司 | Centrifugal pump impeller structure for liquid-solid two-phase flow and design method |
| CN118208420A (en) * | 2024-05-22 | 2024-06-18 | 安徽南方化工泵业有限公司 | Centrifugal pump |
| CN118208420B (en) * | 2024-05-22 | 2024-07-16 | 安徽南方化工泵业有限公司 | Centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102996505B (en) | 2016-01-13 |
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