CN206221131U - A kind of wear-resisting turbine impeller - Google Patents
A kind of wear-resisting turbine impeller Download PDFInfo
- Publication number
- CN206221131U CN206221131U CN201621307719.0U CN201621307719U CN206221131U CN 206221131 U CN206221131 U CN 206221131U CN 201621307719 U CN201621307719 U CN 201621307719U CN 206221131 U CN206221131 U CN 206221131U
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- CN
- China
- Prior art keywords
- impeller
- wear
- axle
- resistant coating
- pit
- 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
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a kind of wear-resisting turbine impeller, including impeller body, the impeller body includes impeller axle, the impeller axle is provided with two spaced impeller disks, it is the equally distributed some blades in axle center to be provided between two impeller disks with impeller axle, the impeller axle, the impeller disk and blade integrally casting shaping, are equipped with the pit being randomly distributed on the outer surface of the impeller body, the surface of the impeller body and pit is provided with wear-resistant coating.The beneficial effects of the utility model are, the wear-resistant coating on impeller body surface, effectively reduce the wearability of impeller body and are corroded by water body in use, increase the service life of impeller.
Description
Technical field
The utility model is related to power plant installation field, more particularly to a kind of wear-resisting turbine impeller.
Background technology
The hydraulic turbine is the host device in power station, and the quality of its runnability directly influences power station or even power train
Unite the Technical and economical level of operation, contain a small amount of sand in the water body in power station, the lower sand erosion of silt carrying flow effect and
Cavitation wear double action makes water turbine overflowing component badly damaged；Now sand erosion proportion is of a relatively high, wearing depth
Increasing can promote hole worsening condition again, form vicious circle, and it is successively the blade back of the body that Francis turbine denudes serious position
Face outlet side is at the lower ring, the crown runner between blade, lower ring surfaces externally and internally etc..
Traditional surface coating because coating and matrix bond strength, case hardness is not high, toughness is inadequate and porosity is big,
Anti-erosion performance index error.
Meanwhile, traditional blade construction is smaller to the resistance of water, and most of water is by blade side in flowing through the current of blade
Space flow away, it is impossible to be fully utilized, cause the potential energy utilization rate of current relatively low.
Utility model content
According to the deficiencies in the prior art, the utility model provides a kind of wear-resisting, resistance to water erosion and improves streaming potential and utilizes
The turbine impeller of rate.
The purpose of this utility model is achieved through the following technical solutions：
A kind of wear-resisting turbine impeller, including impeller body, the impeller body include impeller axle, are set in the impeller axle
There are two spaced impeller disks, if it is the equally distributed cured leaf in axle center to be provided between two impeller disks with impeller axle
Piece, the impeller axle, the impeller disk and blade integrally casting shaping, is equipped with the outer surface of the impeller body and is randomly distributed
Pit, the surface of the impeller body and pit is provided with wear-resistant coating.
Further, the depth of the pit is 0.05-0.2mm.
Further, the wear-resistant coating is cobalt-based metal alloy layer.
Further, the wear-resistant coating is cobalt-based chromium carbide or cobalt-based tungsten carbide.
Further, the thickness of the wear-resistant coating is 0.2-0.4mm.
Further, the blade is laterally and longitudinally arcuate structure.
The beneficial effects of the utility model are：The utility model by setting up wear-resistant coating on the surface of impeller body,
Effectively reduce impeller body to be corroded by water body in use, increase the service life of impeller, meanwhile, increased again
The wearability of impeller；Two-way arc shaped blade design, increase effectively improves the utilization of streaming potential to the resistance of water body
Rate.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the wear-resisting turbine impeller that the utility model embodiment is provided；
Fig. 2 is the sectional view of the wear-resisting turbine impeller that the utility model embodiment is provided；
Fig. 3 is the side view of the wear-resisting turbine impeller that the utility model embodiment is provided；
Fig. 4 is the part surface structure chart of the impeller body of the wear-resisting turbine impeller that the utility model embodiment is provided.
In figure：1st, impeller body；2nd, impeller axle；3rd, the impeller disk；4th, blade；5th, pit；6th, wear-resistant coating.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally described in accompanying drawing herein and
The component of the utility model embodiment for showing can be arranged and designed with a variety of configurations.Therefore, below to attached
The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model,
Selected embodiment of the present utility model is merely representative of, rather than whole embodiments.Based on the embodiment in the utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
As shown in Figure 1 and Figure 2, Fig. 1 shows the overall knot of the wear-resisting turbine impeller that the utility model embodiment is provided
Structure, including impeller body 1, impeller body 1 include impeller axle 2, and impeller axle 2 is provided with two spaced impeller disks 3, two
It is provided between the impeller disk 3 with impeller axle 2 as the equally distributed some blades 4 in axle center, impeller axle 2, the impeller disk 3 are with blade 4 integrally
Casting, is equipped with the pit 5 being randomly distributed on the outer surface of impeller body 1, the surface of impeller body 1 and pit 5 sets
There is wear-resistant coating 6.
Wherein, when pit 5 is that impeller body 1 casts, does coarse treatment on its surface and form pit 5, or to have made
Coarse treatment being done with the surface of the impeller body 1 of a period of time and forming pit 5, the setting of pit 5 ensures the surface of impeller body 1
Out-of-flatness, is easy to wear-resistant coating 6 more stable with what impeller body 1 was combined during meltallizing, it is ensured that the intensity of wear-resistant coating 6.
It is further preferred that pit 5 is irregular depression, its depth differs, and specific depth capacity is 0.2mm, most
Small depth is the depth in 0.05mm, and interval range.
Preferably, wear-resistant coating 6 is cobalt-based metal alloy layer.
It is mainly cobalt-based chromium carbide or cobalt-based tungsten carbide.
Still more preferably, the thickness of wear-resistant coating 6 is 0.2,0.25mm, 0.3mm, 0.35mm or 0.4mm, and it is thick
The plane of starting at of degree is defined by the actual surface of impeller body 1.
Such as Fig. 3, Fig. 4, blade 4 is laterally and longitudinally arcuate structure, and arcuate structure is in water impact impeller body 1
Water conservancy diversion can be played a part of during surface, reversely convolution once, is not only able to avoid impeller body 1 because repeatedly receiving by the power of current
The risk damaged in vertical, meanwhile, water conservancy diversion enables power to promote impeller body 1 to run, and secondary rotating force can be impeller sheet
Body 1 gradually speedup while increase secondary force acting, it is ensured that potential energy delivery efficiency.
The utility model, the coarse treatment of impeller surface is carried out when impeller body 1 casts, or can be to have transported
The impeller body 1 of row a period of time implements Wear-resistant Treatment, it is coarse it is treated after, using meltallizing device by prefabricated cobalt-based chromium carbide
Powder or cobalt-based tungsten-carbide powder are sprayed on the surface of impeller body 1, are applied using the laser beam flying of solid fiber laser
Layer, makes coating and the interface of matrix switch to metallurgical binding by mechanical bond, while realizing that sprayed coating surface is densified, will finally apply
Layer surface carries out retrofit, obtains abrasion-resistant metal figure layer, and the impeller body 1 under the coating, its service life can reach
To more than 3 times of common impeller.
Finally it should be noted that：Above-described each embodiment is merely to illustrate the technical solution of the utility model, rather than
It is limited；Although being described in detail to the utility model with reference to the foregoing embodiments, one of ordinary skill in the art
It should be understood that：It can still modify to the technical scheme described in previous embodiment, or to which part or whole
Technical characteristic carries out equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model
The scope of each embodiment technical scheme.
Claims (6)
1. a kind of wear-resisting turbine impeller, including impeller body, it is characterised in that：The impeller body includes impeller axle, described
Impeller axle is provided with two spaced impeller disks, is provided with by axle center of impeller axle between two impeller disks and is uniformly distributed
Some blades, the impeller axle, the impeller disk and blade integrally casting shaping are equipped with not on the outer surface of the impeller body
The surface of the pit of regular distribution, the impeller body and pit is provided with wear-resistant coating.
2. wear-resisting turbine impeller as claimed in claim 1, it is characterised in that：The depth of the pit is 0.05-0.2mm.
3. wear-resisting turbine impeller as claimed in claim 1, it is characterised in that：The wear-resistant coating is cobalt-based metal alloy
Layer.
4. wear-resisting turbine impeller as claimed in claim 3, it is characterised in that：The wear-resistant coating be cobalt-based chromium carbide or
Cobalt-based tungsten carbide.
5. wear-resisting turbine impeller as claimed in claim 4, it is characterised in that：The thickness of the wear-resistant coating is 0.2-
0.4mm。
6. wear-resisting turbine impeller as claimed in claim 1, it is characterised in that：The blade is laterally and longitudinally arc
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621307719.0U CN206221131U (en) | 2016-11-30 | 2016-11-30 | A kind of wear-resisting turbine impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621307719.0U CN206221131U (en) | 2016-11-30 | 2016-11-30 | A kind of wear-resisting turbine impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221131U true CN206221131U (en) | 2017-06-06 |
Family
ID=58784384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621307719.0U Expired - Fee Related CN206221131U (en) | 2016-11-30 | 2016-11-30 | A kind of wear-resisting turbine impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536072A (en) * | 2019-12-24 | 2020-08-14 | 合肥皖化电机技术开发有限责任公司 | Wear-resistant coating system for water pump blade of furnace |
-
2016
- 2016-11-30 CN CN201621307719.0U patent/CN206221131U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536072A (en) * | 2019-12-24 | 2020-08-14 | 合肥皖化电机技术开发有限责任公司 | Wear-resistant coating system for water pump blade of furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180717 Address after: No. 408, No. 2, No. three li, Hua Yuan, Fengtai District, Beijing Patentee after: Wei Wei Address before: 100000 room 317 and 319, 43 Hepingli middle street, Dongcheng District, Beijing. Patentee before: Amaite metal technology (Beijing) Co. Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20181130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |