CN206290358U - For the steel plastic compount wearing plate, facing plate of hydraulic turbine water guide sealing structure - Google Patents
For the steel plastic compount wearing plate, facing plate of hydraulic turbine water guide sealing structure Download PDFInfo
- Publication number
- CN206290358U CN206290358U CN201621414157.XU CN201621414157U CN206290358U CN 206290358 U CN206290358 U CN 206290358U CN 201621414157 U CN201621414157 U CN 201621414157U CN 206290358 U CN206290358 U CN 206290358U
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- CN
- China
- Prior art keywords
- wear
- top cover
- resistant
- slab element
- base ring
- 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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- 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 is related to the steel plastic compount wearing plate, facing plate for hydraulic turbine water guide sealing structure, it includes hydraulic turbine base ring and water-turbine top cover, the upper surface of hydraulic turbine base ring is provided with the wear-resistant board component of base ring, the wear-resistant board component of base ring includes multiple structure identicals in the fan-shaped wear-resistant Slab element of base ring, and multiple wear-resistant Slab elements of base ring are uniformly laid along the upper surface of hydraulic turbine base ring；The wear-resistant board component of top cover includes multiple structure identicals in the fan-shaped wear-resistant Slab element composition of top cover, the wear-resistant Slab element of top cover is made up of the wear-resistant Slab element of the first top cover and the wear-resistant Slab element of the second top cover, and the wear-resistant Slab element of the first top cover, the wear-resistant Slab element of the second top cover are alternately uniformly laid along the lower surface of water-turbine top cover successively.
Description
Technical field
The utility model belongs to Hydropower Plant water distributor technical field of sealing technology, and more particularly, to hydraulic turbine water guide is close
The steel plastic compount wearing plate, facing plate of seal structure.
Background technology
Turbine gate mechanism wetted surfaces, in the process of running by the souring of high-velocity flow, particularly work as water
When middle silt content is big, ablation destruction is extremely serious, is led to containing husky multiphase flow water quality, the difficulty of middle high head hydroelectric power plant's hydraulic turbine
Disease, jeopardizes power plant safety economical operation for a long time.
In hydraulic turbine structure design, the base ring of water distributor and the wetted surfaces of top cover are needed using special overlay
Protection, this special overlay is wearing plate, facing plate.Traditional wearing plate, facing plate is using in mode connects for screw to base ring and top cover, when wearing plate, facing plate mill
After damage during major overhaul, old wearing plate, facing plate is dismantled, the wearing plate, facing plate for more renewing.Because this kind of wear-resistant board size is big, weight is big,
The selection of material and processing technology aspect are all subject to certain restrictions.Typically manufactured with general steel plate, when in water silt content it is big or
When head is high, manufactured using stainless steel plate.But anti-wear performance is unsatisfactory, when particularly silt content is big, the longevity of this kind of wearing plate, facing plate
Life often controls the overhaul time of unit.The replacing of wearing plate, facing plate needs to shut down for a long time, expends lot of materials and man hour of labour, causes
Huge economic losses (maintenance loss of outage：So that single-machine capacity is 200,000 kw units as an example, daily generated energy loss is 4.8 × 105
Degree, rate for incorporation into the power network is calculated by 0.3 yuan/degree, daily 1,440,000 yuan of loss).
Investigated by existing document data-searching and power station actual motion and found, bottom was once made in some power stations using nylon
Ring wearing plate, facing plate replaces abrasion resistance of metal plate, although abrasion-resistance improves, but DeGrain；Power station also is using super
High density polyethylene (HDPE) makes wearing plate, facing plate, although the abrasion resistance of this wearing plate, facing plate is better than the wearing plate, facing plate of nylon material, but makes for a long time
With easily deformable, after being soaked 2~3 years in water, because water swelling causes deformation, " wedge gap " for expanding is produced, thus gone out
Existing gap " secondary channelling ", cavitation of clearance clashes into silt high frequency high attack angle and is superimposed, and causes hydraulic turbine seal ring cavitation
Seriously, the safe operation of the hydraulic turbine is threatened.
Utility model content
Utility model purpose：It is new that the utility model makes improvement, i.e. this practicality for the problem that above-mentioned prior art is present
Type discloses the steel plastic compount wearing plate, facing plate for hydraulic turbine water guide sealing structure, and it is able to ensure that stator in the case where full off state is shut down
With good sealing, while in startup-shutdown with good anti-cavitation ability, ensureing unit safety operation, increase and generate electricity
Benefit.
Technical scheme：For the steel plastic compount wearing plate, facing plate of hydraulic turbine water guide sealing structure, including hydraulic turbine base ring and water wheels
Machine cap,
The upper surface of the hydraulic turbine base ring is provided with the wear-resistant board component of base ring,
The wear-resistant board component of base ring includes multiple structure identicals in the fan-shaped wear-resistant Slab element of base ring, and multiple base rings resist
Nog plate unit is uniformly laid along the upper surface of hydraulic turbine base ring,
The wear-resistant Slab element of base ring is formed by embedded first stainless steel insert of polyurethane elastomer, the base ring wearing plate, facing plate
Radially middle part is provided with a stator lower surface seal convexity for the outer surface of unit；
Uniformly be laid with multiple first shoulder holes on the wear-resistant Slab element of base ring, the wear-resistant Slab element of base ring with it is described
Hydraulic turbine base ring is fixedly connected by the first shoulder hole with bolt,
The lower surface of the water-turbine top cover is installed with the wear-resistant board component of top cover,
The wear-resistant board component of top cover includes multiple structure identicals in the fan-shaped wear-resistant Slab element composition of top cover, the top
Cover wear-resistant Slab element to be made up of the wear-resistant Slab element of the first top cover and the wear-resistant Slab element of the second top cover, the first top cover wearing plate, facing plate list
First, the described wear-resistant Slab element of second top cover is alternately uniformly laid along the lower surface of water-turbine top cover successively；
The wear-resistant Slab element of first top cover is formed by embedded second stainless steel insert of polyurethane elastomer, first top cover
Radially middle part is provided with a stator upper surface seal convexity for the outer surface of wear-resistant Slab element；
The wear-resistant Slab element of second top cover is formed by embedded 3rd stainless steel insert of polyurethane elastomer, second top cover
Radially middle part is provided with a stator upper surface seal convexity for the outer surface of wear-resistant Slab element；
The wear-resistant Slab element of first top cover is uniformly laid with multiple second shoulder holes, the wear-resistant Slab element of the first top cover
It is fixedly connected with the water-turbine top cover by the second shoulder hole and bolt,
Multiple second shoulder holes, the wear-resistant Slab element of the second top cover are uniformly laid on the wear-resistant Slab element of second top cover
It is fixedly connected with the water-turbine top cover by the second shoulder hole and bolt.
Further, the bolt is stainless steel bolt.
Further, the top of the stainless steel bolt being laid in first shoulder hole is coated with Polyurethane Perfusion glue.
Further, the top of the stainless steel bolt being laid in the second shoulder hole is provided with compound resin mortar.
Further, the first shoulder hole inner side, the second shoulder hole inner side are equipped with thread locking glue.
Further, the first concentric holes, first concentric holes and activity are provided with the middle part of the wear-resistant Slab element of the base ring
The mounting hole of stator is concentric and diameter is identical.
Further, first stainless steel insert is made up of first shoulder hole and the first stainless steel insert mesh.
Further, the wear-resistant Slab element middle part of first top cover is provided with the second concentric holes, second concentric holes and work
Dynamic stator mounting hole is concentric and diameter is identical.
Further, second stainless steel insert is made up of the second shoulder hole and the second stainless steel insert mesh.
Further, the 3rd stainless steel insert 21 is made up of the second shoulder hole and the 3rd stainless steel insert mesh.
Beneficial effect：The disclosed steel plastic compount wearing plate, facing plate for hydraulic turbine water guide sealing structure of the utility model have with
Lower beneficial effect：
(1) stator lower surface seal convexity and stator upper surface seal convexity effectively increase close under stator full off state
Sealing property, is used cooperatively with wicket gate seal plate, and unit shunt running phenomenon is caused because water leakage increases when improving orderly closedown；
(2) polyurethane elastomer is used, the elastomer has elasticity higher, intensity and excellent water resistance, wear-resisting
Property, oil resistivity, endurance, tear-resistant and anti-vibration resistance, its wearability is more than 10 times of ordinary carbon steel, is the poly- second of VHD
More than 3 times of alkene, soak 6 years various intensity indexs and decline no more than 10% in water；
(3) using after steel plastic compount technology machine-shaping, globality is strong, can be machined out when need to locally process, with water
Turbine base ring and water-turbine top cover are fixed by stainless steel bolt, and surface is obtained compound resin mortar and entered with anti scuffing polyurethane adhesive high
Row sealing, it is ensured that smooth to flush with wear-resistant plate surface without pit and obvious gap, abrasion cavitation source is not produced in operation.
(4) mounting means is simple, convenient disassembly, and the requirement of in-site installation condition is not harsh, with interchangeability, greatlys save dimension
Repair the time.
Brief description of the drawings
Fig. 1 is the scheme of installation of hydraulic turbine base ring and the wear-resistant board component of base ring；
Fig. 2 is the top view of the wear-resistant Slab element of the first base ring；
Fig. 3 is the sectional view in the A-A faces of Fig. 2；
Fig. 4 is the top view of the first stainless steel insert；
Fig. 5 is the scheme of installation of water-turbine top cover and the wear-resistant board component of top cover；
Fig. 6 is the top view of the wear-resistant Slab element of the first top cover；
Fig. 7 is the top view of the wear-resistant Slab element of the second top cover；
Fig. 8 is the sectional view in the B-B faces of Fig. 6；
Fig. 9 is the sectional view in the C-C faces of Fig. 7；
Figure 10 is the top view of the second stainless steel insert；
Figure 11 is the top view of the 3rd stainless steel insert；
Wherein：
The 1- hydraulic turbine base ring wear-resistant board components of 2- base rings
The wear-resistant Slab element 4- first shoulders hole of 3- base rings
5- bolt 6- stators lower surface seal convexity
7- the first concentric holes 8- polyurethane elastomers
9- the first stainless steel insert 10- thread locking glues
11- Polyurethane Perfusion glue 12- the first stainless steel insert mesh
The 13- water-turbine top cover wear-resistant board components of 14- top covers
The wear-resistant wear-resistant Slab element of the top covers of Slab element 16- second of the top covers of 15- first
17- stators upper surface seal convexity the second concentric holes of 18-
19- compound resin mortar the second stainless steel inserts of 20-
The stainless steel inserts of 21- the 3rd
22- the second stainless steel insert mesh
The stainless steel insert mesh of 23- the 3rd
The second shoulders of 24- hole
Specific embodiment：
Specific embodiment of the present utility model is described in detail below.
As shown in Fig. 1~11, for the steel plastic compount wearing plate, facing plate of hydraulic turbine water guide sealing structure, including hydraulic turbine base ring 1
With water-turbine top cover 13,
The upper surface of hydraulic turbine base ring 1 is provided with the wear-resistant board component 2 of base ring,
The wear-resistant board component 2 of base ring includes multiple structure identicals in the fan-shaped wear-resistant Slab element 3 of base ring, and multiple base rings are wear-resistant
Slab element 3 is uniformly laid along the upper surface of hydraulic turbine base ring 1,
The wear-resistant Slab element 3 of base ring is formed by embedded first stainless steel insert 9 of polyurethane elastomer 8, the wear-resistant Slab element 3 of base ring
Outer surface radially middle part be provided with a stator lower surface seal convexity 6；
Multiple first shoulder holes 4, the wear-resistant Slab element 3 of base ring and hydraulic turbine bottom are uniformly laid with the wear-resistant Slab element 3 of base ring
Ring 1 is fixedly connected by first shoulder hole 4 with bolt 5,
The lower surface of water-turbine top cover 13 is installed with the wear-resistant board component 14 of top cover,
The wear-resistant board component 14 of top cover includes multiple structure identicals in the fan-shaped wear-resistant Slab element composition of top cover, and top cover is wear-resistant
Slab element is made up of the wear-resistant wear-resistant Slab element 16 of the top cover of Slab element 15 and second of the first top cover, the wear-resistant Slab element 15 of the first top cover,
The wear-resistant Slab element 16 of second top cover is alternately uniformly laid along the lower surface of water-turbine top cover 13 successively；
The wear-resistant Slab element 15 of first top cover is formed by embedded second stainless steel insert 20 of polyurethane elastomer 8, the first top cover
Radially middle part is provided with a stator upper surface seal convexity 17 for the outer surface of wear-resistant Slab element 15；
The wear-resistant Slab element 16 of second top cover is formed by embedded 3rd stainless steel insert 21 of polyurethane elastomer 8, second top
The outer surface radial direction middle part for covering wear-resistant Slab element 16 is provided with a stator upper surface seal convexity 17；
The wear-resistant Slab element 15 of first top cover is uniformly laid with multiple second shoulder holes 24, and the wear-resistant Slab element 15 of the first top cover leads to
Cross the second shoulder hole 24 and bolt 5 be fixedly connected with water-turbine top cover 13,
Multiple second shoulder holes 24 are uniformly laid on the wear-resistant Slab element 16 of second top cover, the wear-resistant Slab element 16 of the second top cover leads to
Cross the second shoulder hole 24 and bolt 5 is fixedly connected with water-turbine top cover 13.
Further, bolt 5 is stainless steel bolt.
Further, the top of the stainless steel bolt being laid in first shoulder hole 4 is coated with Polyurethane Perfusion glue 11.
Further, the top of the stainless steel bolt being laid in the second shoulder hole 24 is provided with compound resin mortar 19.
Further, the inner side of first shoulder hole 4, the inner side of the second shoulder hole 24 are provided with thread locking glue 10.
Further, the middle part of the wear-resistant Slab element 3 of base ring is provided with the first concentric holes 7, the first concentric holes 7 and movable guide vane
Mounting hole is concentric and diameter is identical.
Further, the first stainless steel insert 9 is made up of the stainless steel insert mesh 12 of first shoulder hole 4 and first.
Further, the wear-resistant middle part of Slab element 15 of the first top cover is provided with the second concentric holes 18, the second concentric holes 18 and activity
Stator mounting hole is concentric and diameter is identical.
Further, the second stainless steel insert 20 is made up of the second shoulder hole 24 and the second stainless steel insert mesh 22.
Further, the 3rd stainless steel insert 21 is made up of the second shoulder hole 24 and the 3rd stainless steel insert mesh 23.
When using, stator is by stator lower surface seal convexity 6, that stator upper surface seal convexity 17 is arranged in base ring is wear-resistant
Between board component 2 and the wear-resistant board component 14 of top cover, can effectively suppress seepy question during stator off-mode.
Implementation method of the present utility model is elaborated above.But the utility model is not limited to above-mentioned implementation
Mode, in the ken that art those of ordinary skill possesses, can also not depart from the utility model ancestor
Made a variety of changes on the premise of purport.
Claims (6)
1. the steel plastic compount wearing plate, facing plate of hydraulic turbine water guide sealing structure is used for, it is characterised in that including hydraulic turbine base ring and water wheels
Machine cap,
The upper surface of the hydraulic turbine base ring is provided with the wear-resistant board component of base ring,
The wear-resistant board component of base ring includes multiple structure identicals in the fan-shaped wear-resistant Slab element of base ring, multiple base ring wearing plate, facing plates
Unit is uniformly laid along the upper surface of hydraulic turbine base ring,
The wear-resistant Slab element of base ring is formed by embedded first stainless steel insert of polyurethane elastomer, the wear-resistant Slab element of base ring
Outer surface radially middle part be provided with a stator lower surface seal convexity；
Multiple first shoulder holes, the wear-resistant Slab element of base ring and the water wheels are uniformly laid with the wear-resistant Slab element of base ring
Machine base ring is fixedly connected by the first shoulder hole with bolt,
The lower surface of the water-turbine top cover is installed with the wear-resistant board component of top cover,
The wear-resistant board component of top cover includes multiple structure identicals in the fan-shaped wear-resistant Slab element composition of top cover, and the top cover resists
Nog plate unit is made up of the wear-resistant Slab element of the first top cover and the wear-resistant Slab element of the second top cover, the wear-resistant Slab element of the first top cover,
The wear-resistant Slab element of second top cover is alternately uniformly laid along the lower surface of water-turbine top cover successively；
The wear-resistant Slab element of first top cover is formed by embedded second stainless steel insert of polyurethane elastomer, and first top cover is wear-resistant
Radially middle part is provided with a stator upper surface seal convexity for the outer surface of Slab element；
The wear-resistant Slab element of second top cover is formed by embedded 3rd stainless steel insert of polyurethane elastomer, and second top cover is wear-resistant
Radially middle part is provided with a stator upper surface seal convexity for the outer surface of Slab element；
The wear-resistant Slab element of first top cover is uniformly laid with multiple second shoulder holes, and the wear-resistant Slab element of the first top cover passes through
Second shoulder hole and bolt are fixedly connected with the water-turbine top cover,
Multiple second shoulder holes are uniformly laid on the wear-resistant Slab element of second top cover, the wear-resistant Slab element of the second top cover passes through
Second shoulder hole and bolt are fixedly connected with the water-turbine top cover.
2. the steel plastic compount wearing plate, facing plate for hydraulic turbine water guide sealing structure according to claim 1, it is characterised in that institute
State and the first concentric holes are provided with the middle part of the wear-resistant Slab element of base ring, first concentric holes are concentric with the mounting hole of movable guide vane and straight
Footpath is identical.
3. the steel plastic compount wearing plate, facing plate for hydraulic turbine water guide sealing structure according to claim 1, it is characterised in that institute
The first stainless steel insert is stated to be made up of first shoulder hole and the first stainless steel insert mesh.
4. the steel plastic compount wearing plate, facing plate for hydraulic turbine water guide sealing structure according to claim 1, it is characterised in that institute
State the wear-resistant Slab element middle part of the first top cover and be provided with the second concentric holes, second concentric holes are concentric with movable guide vane mounting hole and straight
Footpath is identical.
5. the steel plastic compount wearing plate, facing plate for hydraulic turbine water guide sealing structure according to claim 1, it is characterised in that institute
The second stainless steel insert is stated to be made up of the second shoulder hole and the second stainless steel insert mesh.
6. the steel plastic compount wearing plate, facing plate for hydraulic turbine water guide sealing structure according to claim 1, it is characterised in that institute
The 3rd stainless steel insert 21 is stated to be made up of the second shoulder hole and the 3rd stainless steel insert mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621414157.XU CN206290358U (en) | 2016-12-22 | 2016-12-22 | For the steel plastic compount wearing plate, facing plate of hydraulic turbine water guide sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621414157.XU CN206290358U (en) | 2016-12-22 | 2016-12-22 | For the steel plastic compount wearing plate, facing plate of hydraulic turbine water guide sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290358U true CN206290358U (en) | 2017-06-30 |
Family
ID=59104313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621414157.XU Expired - Fee Related CN206290358U (en) | 2016-12-22 | 2016-12-22 | For the steel plastic compount wearing plate, facing plate of hydraulic turbine water guide sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290358U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438160A (en) * | 2016-12-22 | 2017-02-22 | 黄河水利委员会黄河水利科学研究院 | Steel-plastic composite anti-wear plate for water guide sealing structure of water turbine |
| CN109372677A (en) * | 2018-12-14 | 2019-02-22 | 天津市天发重型水电设备制造有限公司 | A kind of wear-resistant mechanism of Novel control ring |
| CN111496479A (en) * | 2020-04-29 | 2020-08-07 | 哈尔滨电机厂有限责任公司 | Machining method for bottom ring of large hydroelectric generating set |
-
2016
- 2016-12-22 CN CN201621414157.XU patent/CN206290358U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438160A (en) * | 2016-12-22 | 2017-02-22 | 黄河水利委员会黄河水利科学研究院 | Steel-plastic composite anti-wear plate for water guide sealing structure of water turbine |
| CN109372677A (en) * | 2018-12-14 | 2019-02-22 | 天津市天发重型水电设备制造有限公司 | A kind of wear-resistant mechanism of Novel control ring |
| CN109372677B (en) * | 2018-12-14 | 2024-05-03 | 天津市天发重型水电设备制造有限公司 | Novel control ring mechanism that wears |
| CN111496479A (en) * | 2020-04-29 | 2020-08-07 | 哈尔滨电机厂有限责任公司 | Machining method for bottom ring of large hydroelectric generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20171222 |