CN109026726A - A kind of centrifugal dredge pump with bionic non-smooth surface - Google Patents
A kind of centrifugal dredge pump with bionic non-smooth surface Download PDFInfo
- Publication number
- CN109026726A CN109026726A CN201810851670.2A CN201810851670A CN109026726A CN 109026726 A CN109026726 A CN 109026726A CN 201810851670 A CN201810851670 A CN 201810851670A CN 109026726 A CN109026726 A CN 109026726A
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- CN
- China
- Prior art keywords
- pump
- smooth surface
- cell cube
- bionic non
- impeller
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2294—Rotors specially for centrifugal pumps with special measures for protection, e.g. against abrasion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of centrifugal dredge pumps with bionic non-smooth surface, including components such as pump case, pump shaft, angular contact ball bearing, sealing ring, impeller, axial nut, chomas, the pit cell cube of regular array is machined on the surface that the pump housing is contacted with silt, the surface that the pump housing is contacted with silt forms bionic non-smooth surface.The present invention has many advantages, such as to reduce each Surface Wear, improves tribological property, improve wearability, prolong the service life.
Description
Technical field
The present invention relates to centrifugal dredge pump design fields, especially a kind of wear-resistant, with long service life with bionical non-
The centrifugal dredge pump of smooth surface.
Background technique
Centrifugal dredge pump is to generate water flow during a kind of defeated mud of waterpower again, and with the machinery of Hydraulic transportation silt.By
During the work time, the flow passage components such as pump case, impeller, choma of centrifugal dredge pump are constantly mutual with the mixtures such as silt water
Contact and collision, generate very big friction and abrasion, so that the components such as pump case, impeller, choma the hole of perforating wound is occurred, seriously affect
The normal use and service life of centrifugal dredge pump.
The expert of domestic and international related fields centrifugal dredge pump pump case, impeller and choma there are aiming at the problem that carry out always
Research.The thinking solved the problems, such as has the modes such as the waterpower shape for improving silt influent stream, the line style of impeller；There are also consider by
Inner surface spraying polyurethane, ceramic coating of the components such as pump case, or plating special, wear-resistant erosion alloy etc., make its internal surface solidification one
The surface that layer has wear-resisting property excellent.The present invention, which provides, a kind of new solves the problems, such as thinking: by the pump case of centrifugal dredge pump, leaf
The bionic non-smooth surface that the pit shape cell cube of regular arrangement is formed is processed on wheel and choma surface, in turn.
Summary of the invention
It is an object of that present invention to provide a kind of each Surface Wear of reduction, improvement tribological property, improve service life
The centrifugal dredge pump with bionic non-smooth surface.
To achieve the above object, use following technical scheme: the invention mainly comprises pump case, pump shaft, angular contact ball axis
It holds, the components such as sealing ring, impeller, axial nut, choma, is machined with regular array on the surface that the pump housing is contacted with silt
Pit cell cube, the surface that the pump housing is contacted with silt form bionic non-smooth surface.
Further, the surface that the pump housing is contacted with silt includes pump case surface, impeller surface and choma surface.
Further, the pit cell cube rectangular array formula distribution.
Further, away from for 3-10mm, pit depth is 0.01-3mm at the center of two pit cell cubes.
Further, opening area of the pit cell cube on the friction surface on pump case, impeller and choma is
1.13mm2。
Further, the pit cell cube cross sectional shape can be cylindrical or cone, hemispherical, goalpost shape, fall to cut
Taper, bowl-type, falls hemispherical, half elliptic at cylindrical band chamfering shape, and the pit cell cube on pump case, impeller and choma can be independent
Using above-mentioned cross sectional shape, can also mix using above-mentioned cross sectional shape.
Compared with prior art, the present invention has the advantage that
1, pit cell cube will form local dynamic pressure support during the work time, improve its mechanical loading characteristic；Pit list
Member knows from experience storage part mud, reduces the contact area on the surfaces such as the silt being inhaled into and pump case inner surface, impeller and choma, changes
Kind tribological property.To achieve the purpose that drag reduction anti-attrition, improves centrifugal dredge pump wearability, prolongs its service life.
2, structure is simple, reliable performance, low in cost, cost performance is high, personalized strong, can want for different operating
It asks, the bionic non-smooth surface of different units volume morphing, size, the regularity of distribution is chosen, to obtain excellent performance.
Detailed description of the invention
Fig. 1 is centrifugal dredge pump general profile view；
Fig. 2 is centrifugal dredge pump pump case main view and side view；
Fig. 3 is centrifugal dredge pump pump case A-A cross section view；
Fig. 4 is centrifugal dredge pump pump case B-B cross section view；
Fig. 5 is centrifugal dredge pump impeller main view；
Fig. 6 is centrifugal dredge pump impeller axis side view；
Fig. 7 is centrifugal dredge pump choma axis side view；
Fig. 8 is centrifugal dredge pump choma cross section view；
Fig. 9 is the cross section view using cylindrical pit cell cube；
Figure 10 is the cross section view using pyramidal pits cell cube；
Figure 11 is the cross section view using hemispherical dimples cell cube；
Figure 12 is the cross section view using ball Cylindrical Pit cell cube；
Figure 13 is the cross section view using the pit of falling truncated cone shape cell cube；
Figure 14 is the cross section view using bowl cell cube；
Figure 15 is the cross section view using the cell cube of falling hemispherical dimples；
Figure 16 is the cross section view using semielliptical shape pit cell cube.
Drawing reference numeral: 1- pump case, 2- pump shaft, 3- angular contact ball bearing, 4- sealing ring, 5- impeller, 6- pit cell cube, 7-
Axial nut, 8- choma.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing:
As shown in Figure 1, the invention mainly comprises pump case 1, pump shaft 2, angular contact ball bearing 3, sealing ring 4, impeller 5, axial directions
The components such as nut 7, choma 8, the pit cell cube of processing rectangular array formula distribution on the surface that the pump housing is contacted with silt
6, the surface that the pump housing is contacted with silt forms bionic non-smooth surface.Each pit cell cube rectangular array formula is distributed in each portion
On the part center of circle to several rectangle frames on periphery, i.e. it is uniformly distributed that the axis of these pit cell cubes is distributed in pump case inner surface.
As illustrated in figs. 2 through 8, the surface that the pump housing is contacted with silt includes pump case surface, impeller surface and choma surface.Two
Away from for 3-10mm, pit depth is 0.01-3mm at the center of pit cell cube.The opening area of pit cell cube is 1.13mm2。
As shown in figures 9 to 16, the pit cell cube cross sectional shape can for cylindrical or cone, hemispherical, goalpost shape,
Truncated cone shape, cylindrical band chamfering shape, bowl-type, fall hemispherical, half elliptic, the pit cell cube on pump case, impeller and choma can
Above-mentioned cross sectional shape is individually used, can also be mixed using above-mentioned cross sectional shape.These pit cell cube depth are 0.6mm, opening
Area is 1.13mm2。
It is largely biological to study nature, such as the lizard of mountainous region and desert region, class, earthworm in soil, marine shellfish
Class and shark, plant bamboo etc. find that these biologies generally have the function of excellent desorption, drag reduction and wear-resisting, and these function
It can be related with its body surface non-smooth surface form.The present invention is according to bionic non-smooth surface effect, by the pump case of centrifugal dredge pump
Inner surface, impeller surface and choma inner surface are processed into the non-smooth surface with certain form, these pit cell cubes are in work
It will form local dynamic pressure support during making, improve its mechanical loading characteristic；In addition these pit cell cubes can storage part mud
Slurry reduces the contact area on the surfaces such as the silt being inhaled into and pump case inner surface, impeller and choma, improves tribological property.From
And achieve the purpose that drag reduction anti-attrition, it improves centrifugal dredge pump wearability, prolong its service life.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (6)
1. a kind of centrifugal dredge pump with bionic non-smooth surface mainly includes pump case, pump shaft, angular contact ball bearing, sealing
The components such as circle, impeller, axial nut, choma, it is characterised in that: regular row is processed on the surface that the pump housing is contacted with silt
The pit cell cube of cloth, the surface that the pump housing is contacted with silt form bionic non-smooth surface.
2. a kind of centrifugal dredge pump with bionic non-smooth surface according to claim 1, it is characterised in that: the pump
The surface that body is contacted with silt includes pump case surface, impeller surface and choma surface.
3. a kind of centrifugal dredge pump with bionic non-smooth surface according to claim 1, it is characterised in that: described recessed
Cheat the distribution of cell cube rectangular array formula.
4. a kind of centrifugal dredge pump with bionic non-smooth surface according to claim 1, it is characterised in that: two recessed
Cheat cell cube center away from be 3-10mm, pit depth be 0.01-3mm.
5. a kind of centrifugal dredge pump with bionic non-smooth surface according to claim 1, it is characterised in that: described recessed
Cheating opening area of the cell cube on the friction surface on pump case, impeller and choma is 1.13mm2。
6. a kind of centrifugal dredge pump with bionic non-smooth surface according to claim 1, it is characterised in that: described recessed
Cheat cell cube cross sectional shape can for cylindrical or cone, hemispherical, goalpost shape, truncated cone shape, cylindrical band chamfering shape, bowl-type,
Hemispherical, half elliptic, the pit cell cube on pump case, impeller and choma can individually use above-mentioned cross sectional shape, can also mix
It closes and uses above-mentioned cross sectional shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810851670.2A CN109026726A (en) | 2018-07-30 | 2018-07-30 | A kind of centrifugal dredge pump with bionic non-smooth surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810851670.2A CN109026726A (en) | 2018-07-30 | 2018-07-30 | A kind of centrifugal dredge pump with bionic non-smooth surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109026726A true CN109026726A (en) | 2018-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810851670.2A Pending CN109026726A (en) | 2018-07-30 | 2018-07-30 | A kind of centrifugal dredge pump with bionic non-smooth surface |
Country Status (1)
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| CN (1) | CN109026726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821890A (en) * | 2019-12-11 | 2020-02-21 | 江苏大学镇江流体工程装备技术研究院 | Centrifugal pump volute with bionic structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202520624U (en) * | 2012-03-07 | 2012-11-07 | 中交天津航道局有限公司 | In-cabin dredging pump applying water seal structure at water inlet end |
| CN103867428A (en) * | 2014-02-24 | 2014-06-18 | 燕山大学 | Sliding-shoe friction pair of high-pressure seawater axial plunger pump with bionic non-smooth surface |
| CN204328267U (en) * | 2014-10-30 | 2015-05-13 | 燕山大学 | A kind of inwall has the nano bionic hydraulic tube of superslide and flexible nature |
| US20160186776A1 (en) * | 2011-03-01 | 2016-06-30 | Nuhn Industries Limited | Pump for immersion within a fluid reservoir |
-
2018
- 2018-07-30 CN CN201810851670.2A patent/CN109026726A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160186776A1 (en) * | 2011-03-01 | 2016-06-30 | Nuhn Industries Limited | Pump for immersion within a fluid reservoir |
| CN202520624U (en) * | 2012-03-07 | 2012-11-07 | 中交天津航道局有限公司 | In-cabin dredging pump applying water seal structure at water inlet end |
| CN103867428A (en) * | 2014-02-24 | 2014-06-18 | 燕山大学 | Sliding-shoe friction pair of high-pressure seawater axial plunger pump with bionic non-smooth surface |
| CN204328267U (en) * | 2014-10-30 | 2015-05-13 | 燕山大学 | A kind of inwall has the nano bionic hydraulic tube of superslide and flexible nature |
Non-Patent Citations (2)
| Title |
|---|
| 代东顺: "非光滑表面流动减阻特性在离心泵上的应用研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 黄国智等: "《全自磨半自磨磨矿技术》", 31 January 2018, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821890A (en) * | 2019-12-11 | 2020-02-21 | 江苏大学镇江流体工程装备技术研究院 | Centrifugal pump volute with bionic structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |