CN205955896U - Axial compressor rotating blade formula hydroelectric set runner blade detent - Google Patents
Axial compressor rotating blade formula hydroelectric set runner blade detent Download PDFInfo
- Publication number
- CN205955896U CN205955896U CN201620965366.7U CN201620965366U CN205955896U CN 205955896 U CN205955896 U CN 205955896U CN 201620965366 U CN201620965366 U CN 201620965366U CN 205955896 U CN205955896 U CN 205955896U
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- plug
- runner
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- axial
- screw
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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 provides an axial compressor rotating blade formula hydroelectric set runner blade detent, includes stop lever, plug, is close to the blade limit malleation face department processing screw of intaking on the runner hub. The stop lever is installed between the turn(a)round to the runner on the screw, before the unit puts into operation, pull down the stop lever, the type of repairing is polished to installation sealing layer and the plug of screwing in the screw, plug makes its and runner hub surface coincide, and the epoxy shutoff is passed through in the inside hole of plug. The utility model relates to an axial compressor rotating blade formula hydroelectric set runner blade detent, fundamentally have solved the axial compressor rotating blade formula hydroelectric set runner on -the -spot hidden danger that the blade mistake was moved between the turn(a)round, and the guarantee person and equipment safety guarantee that unit maintenance work launches in order, practice thrift the cost of overhaul, improve maintenance efficiency.
Description
Technical field
A kind of this utility model axial-flow rotary propeller type runner of hydro-generating unit blade stop device, is related to axial-flow Kaplan water
Turbine generator group overhauls field.
Background technology
Axial-flow rotary propeller type turbine-generator units, during installation and removal, often need to complete machine by runner hanging tool
Group stress check calculation, and the smooth installation of hanging tool then requires runner bucket to be in closed positions.Additionally, for preventing runner from pacifying
Dress, dismounting stage blade malfunction are it is also desirable to be placed in closed positions by runner bucket.If blade occur malfunction may cause the person and
Equipment safety accident.Thus it is guaranteed that runner bucket to be reliably and securely in closed positions in maintenance process most important.
At present, how axial-flow Kaplan turbine-generator units, in maintenance, weld block by relevant position on web
To prevent blade malfunction.Welding and subsequent treatment work not only improve maintenance difficulty, increase workload, more likely destroy web
Facing material, causes local corrosion, cavitation erosion.
Content of the invention
In order to solve above-mentioned technical problem, this utility model provides a kind of axial-flow rotary propeller type runner of hydro-generating unit blade
Stop device, fundamentally solves the live hidden danger of blade malfunction during axial-flow rotary propeller type runner of hydro-generating unit overhauls,
Ensure the person and equipment safety it is ensured that unit maintenance work launches in order, save the cost of overhaul, improve overhaul efficiency.
The technical scheme that this utility model is taken is：
A kind of axial-flow rotary propeller type runner of hydro-generating unit blade stop device, including arresting lever, plug, on web
Enter processing screw hole at the pressure surface of waterside near blade.During runner maintenance, screw is installed arresting lever；Before unit puts into operation, pull down
Arresting lever, installs sealant in screw and screws plug, and plug polishing repairing type makes itself and web surface profiles, inside plug
Hole is blocked by epoxy.
When described plug is installed, smear thread locking agent thereon.
Multiple screws are machined with described web, the equal centrosymmetry of multiple screw.
Described screw is located at molded line relatively flat position on web.
Described arresting lever is threaded rod, at least one.
A kind of this utility model axial-flow rotary propeller type runner of hydro-generating unit blade stop device, has the beneficial effect that：
（1）Manufacture and design and in-site installation is convenient, economical.This device is made up of parts such as arresting lever, plugs, above equal
For machine-building conventional project it is easy to automatization, modularity processing, time and fund cost input are cheap.Arresting lever and plug
Dismounting is simple, quick, and achievable multiple stage maintenance unit runner bucket stop is general, and utilization rate is high.
（2）During fundamentally solving the maintenance of axial-flow rotary propeller type runner of hydro-generating unit, the scene of blade malfunction is hidden
Suffer from, ensure the person and equipment safety it is ensured that unit maintenance work launches in order, save the cost of overhaul, improve overhaul efficiency.
Brief description
Fig. 1 is stop device assembling schematic diagram of the present utility model（Unit maintenance state）.
Fig. 2 is stop device assembling schematic diagram of the present utility model（Operating states of the units）.
Fig. 3 is stop screwhole position schematic diagram on web of the present utility model.
Fig. 4 is arresting lever structural representation of the present utility model.
Fig. 5 is plug structural representation of the present utility model.
Wherein：1- arresting lever, 2- plug, 3- web, 4- blade, 5- screw, 6- sealant, 7- is arranged on inner hexagonal hole
Epoxy coating.
A- blade enters waterside pressure surface（Closed positions）.
Specific embodiment
As shown in Fig. 1 ~ Fig. 5, a kind of axial-flow rotary propeller type runner of hydro-generating unit blade stop device, mainly by arresting lever
1st, the parts such as plug 2 composition, concrete technical scheme is as follows：
It is desirable to enter near blade 4 on web 3 when manufacturing and designing in axial-flow rotary propeller type runner of hydro-generating unit body factory
Processing screw hole 5 at the pressure surface a of waterside, now blade 4 be in closed positions, for installing arresting lever 1.
During runner maintenance, arresting lever 1 can effectively prevent blade 4 complete around blade 4 axle clockwise direction under the influence of gravity
Evolution is to malfunction；As shown in Figure 1.
Before unit puts into operation, pull down arresting lever 1, sealant 6 is installed and screws plug 2, plug 2 is carried out with polishing repairing type makes it
With web 3 surface profiles, interior hexagonal counter sink epoxy blocks.When plug 2 is installed, can be by smearing the side such as thread locking agent
Formula carries out anti-loosening process to it, as shown in Figure 2.
Due to different axial-flow rotary propeller type runner of hydro-generating unit lobe numbers, relative motion face seal material and pattern
（Determine frictional resistance）, each part dimension weight etc. all each variant.Therefore this utility model device is not for specific model
Do detailed number size to define and Strength co-mputation.This device possesses following characteristics：
（1）, institute's processing screw hole 5 centrosymmetry on web 3, in order to ensure each arresting lever uniform force.
（2）Stop device quantity, size and intensity issuable maximum turning moment during should be able to bearing runner maintenance
And leave enough safety coefficients, under maximum moment effect, screw 5 and corresponding arresting lever 1 should not have screw thread to damage, bend change
The shape even defect such as fracture occurs.
（3）Screw 5 molded line relatively flat position processing on web 3, to reduce live reconditioning quality；Plug 2 is installed and is beaten
It is ensured that its external form and web 3 coincide during mill, during preventing unit operation at this flow shape to occur the sudden turn of events to produce cavitation erosion etc. broken
Bad.
Claims (5)
1. a kind of axial-flow rotary propeller type runner of hydro-generating unit blade stop device, including arresting lever（1）, plug（2）, its feature
It is：In web（3）Upper close blade（4）Enter waterside pressure surface（a）Place's processing screw hole（5）,
During runner maintenance, screw（5）Upper installation arresting lever（1）；Before unit puts into operation, pull down arresting lever（1）, in screw（5）Interior
Sealant is installed and screws plug（2）, plug plug（2）Polishing repairing type makes itself and web（3）Surface profiles, plug（2）Interior
Portion hole is blocked by epoxy.
2. according to claim 1 a kind of axial-flow rotary propeller type runner of hydro-generating unit blade stop device it is characterised in that：
Described plug（2）During installation, smear thread locking agent thereon.
3. according to claim 1 a kind of axial-flow rotary propeller type runner of hydro-generating unit blade stop device it is characterised in that：
Described web（3）On be machined with multiple screws（5）, multiple screws（5）All centrosymmetry.
4. according to claim 1 a kind of axial-flow rotary propeller type runner of hydro-generating unit blade stop device it is characterised in that：
Screw（5）Positioned at web（3）Upper molded line relatively flat position.
5. according to claim 1 a kind of axial-flow rotary propeller type runner of hydro-generating unit blade stop device it is characterised in that：
Described arresting lever（1）For threaded rod, at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620965366.7U CN205955896U (en) | 2016-08-29 | 2016-08-29 | Axial compressor rotating blade formula hydroelectric set runner blade detent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620965366.7U CN205955896U (en) | 2016-08-29 | 2016-08-29 | Axial compressor rotating blade formula hydroelectric set runner blade detent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205955896U true CN205955896U (en) | 2017-02-15 |
Family
ID=57980368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620965366.7U Active CN205955896U (en) | 2016-08-29 | 2016-08-29 | Axial compressor rotating blade formula hydroelectric set runner blade detent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205955896U (en) |
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2016
- 2016-08-29 CN CN201620965366.7U patent/CN205955896U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |