CN104481778A - Electric station impeller overhaul device and electric station impeller overhaul method - Google Patents
Electric station impeller overhaul device and electric station impeller overhaul method Download PDFInfo
- Publication number
- CN104481778A CN104481778A CN201410769985.4A CN201410769985A CN104481778A CN 104481778 A CN104481778 A CN 104481778A CN 201410769985 A CN201410769985 A CN 201410769985A CN 104481778 A CN104481778 A CN 104481778A
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- CN
- China
- Prior art keywords
- top cover
- outer top
- impeller
- stator
- overhaul
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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
Abstract
The invention discloses an electric station impeller overhaul device and an electric station impeller overhaul method. The electric station impeller overhaul device comprises a plurality of hoisting devices used for hoisting outer top covers arranged at the upper part of a guide blade and a support device used for supporting a position between the outer top cover and the guide blade, wherein the support device comprises a hollow post body, the lower end of the hollow post body is provided with a groove-shaped element used for being buckled and arranged on the upper end surface of the guide blade, an opening of the groove-shaped element is downward, the upper end surface of the hollow post body is provided with a support panel, and screw bolt holes capable of being matched with the outer top cover are formed in the support panel. The electric station impeller overhaul method has the advantages that a bridge crane is used for hoisting and is matched with the specially designed support device, after a shaft sleeve overhaul space is raised in situ by using the weight of the outer top cover and the support frame, the outer top cover is directly supported, and each overhaul operation of a water turbine guide blade can be carried out.
Description
Technical field
The present invention relates to a kind of power station impeller apparatus for examination and repair and repair method thereof.
Background technique
Stator axle sleeve mechanism in Power Station Turbine group cannot overhaul in general light maintenance, overhaul.Turbine gate mechanism is turbine-generator units vitals, through running for many years, these parts must carry out disintegration and change maintenance, according to China's conventional maintenance craft of tradition and breakdown procedure, former design 24 stator maintenance, 105.32 tons of outer top covers point pintongs in machine hole that weighs repeatedly must be lifted to erecting bed, then 24 single-pieces be weighed traditional maintenance craft that 6.44 tons of stators winch to the special place of maintenance.Loaded down with trivial details, the on-the-spot high-altitude of this maintenance craft operation, oversize, large-tonnage job safety dangerous spot are many, at substantial human and material resources, the shortcomings such as labor intensity is large.This work brings very difficult and trouble to maintenance, becomes a great problem of puzzlement each hydroelectric power plant maintenance.
Summary of the invention
The object of the invention is to provide a kind of power station impeller apparatus for examination and repair and repair method thereof, to solve current Hydropower Plant power station impeller apparatus for examination and repair at substantial manpower and materials, and dangerous higher problem.
For achieving the above object, a kind of technological scheme that the present invention adopts is as follows: a kind of power station impeller apparatus for examination and repair, comprise several lifting stator tops outside top cover boom hoistings and for supporting the support device between outer top cover and stator, described support device comprises a hollow cylinder, described hollow cylinder lower end is provided with the grooved part for being buckled on stator upper-end surface, Open Side Down for described grooved part, described hollow cylinder upper-end surface is provided with a support panel, and described support panel is provided with the bolt hole that can match with outer top cover.
Further, described boom hoisting comprises the arc seat board matched with outer top cover, and be fixedly connected with an otic placode longitudinally arranged in the middle part of described arc seat board, described otic placode is provided with lifting hole(eyelet), the bolt hole that described arc seat board matches with outer top cover.
Further, described grooved part comprises a base plate and perpendicular to the fixed lateral plate on base plate, the side that described fixed lateral plate is relative is provided with slip side plate, described base plate bends inwards along slip side plate glide direction both sides formation pair of guide rails, both sides, described slip side plate lower end are extended with pair of flanges, and described flange stretches in guide rail, and the guide rail that described base plate is formed is provided with slotted eye, described flange is provided with bolt hole, and described slip side plate is fixedly connected with through the bolt that runs through flange and guide rail.
Further, in described lifting hole(eyelet), be provided with shackle, described in unload the wire rope buckled and be provided with and be hung on suspension hook.
The another kind of technological scheme that the present invention adopts is as follows: a kind of impeller maintenance repair method, comprises a kind of power station as claimed in claim 3 impeller apparatus for examination and repair, it is characterized in that, comprise the following steps:
(1) lifting device is set on the outer top cover of Hydropower Plant, utilizes bolt by fixing for arc seat board with on outer top cover;
(2) by the outer top cover 1-2mm of the slow jack-up of bridge machine, check that whole circle should have gap;
(3) continue the outer top cover of lifting and slowly outer top cover is promoted 900-950mm by bridge machine;
(4) between stator and outer top cover, put into support device, Open Side Down arranges for the grooved part of support device;
(5) two ends of same stator are respectively provided with a support device, and realize matching with stator upper-end surface by the size of adjustment slip side plate;
(6) fixed bridge seat in the plane is put.
Further, put into wedge in support panel upper end in described step (5) thus adjust adjustment support panel in same level, ensureing uniform force balance.
Further, in described step (1), lifting device is provided with multiple and is distributed in outer top cover perimembranous.
Compared with prior art, the present invention has following beneficial effect: after method coordinates the support device of special designs to adopt outer top cover and supporting frame weight original place to raise axle sleeve space for maintenance by the lifting of bridge machine, directly support outer top cover, namely can carry out the every service work of guide vanes of water turbine, avoid many a large amount of manpowers of bringing of carrying trans-routings and expend and increase with risk factor.
Accompanying drawing explanation
Fig. 1 is boom hoisting structural representation of the present invention;
Fig. 2 is boom hoisting shackle structure schematic diagram of the present invention;
Fig. 3 is support device structure schematic diagram of the present invention;
Fig. 4 is the grooved part structural representation (for the left apparent direction of Fig. 2) of support device of the present invention;
Fig. 5 is grooved part slip side plate of the present invention and rail engaging structure schematic diagram;
Fig. 6 is existing stator schematic cross-section (left and right sides is asymmetric);
Fig. 7 is using state schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
A kind of power station impeller apparatus for examination and repair, comprise several lifting stator tops outside top cover boom hoistings 10 and for supporting the support device 20 between outer top cover and stator, described support device 20 comprises a hollow cylinder 210, described hollow cylinder 210 lower end is provided with the grooved part 220 for being buckled on stator upper-end surface, Open Side Down for described grooved part 220, described hollow cylinder upper-end surface is provided with a support panel 230, and described support panel 230 is provided with the bolt hole that can match with outer top cover.
Boom hoisting 10 comprises the arc seat board 110 matched with outer top cover, an otic placode 120 longitudinally arranged is fixedly connected with in the middle part of described arc seat board 110, described otic placode 120 is provided with lifting hole(eyelet) 121, the bolt hole 111 that described arc seat board 110 matches with outer top cover, be provided with shackle in described lifting hole(eyelet), described in unload the wire rope buckled and be provided with and be hung on suspension hook.
Described grooved part 220 comprises a base plate 221 and perpendicular to the fixed lateral plate 222 on base plate, the side that described fixed lateral plate 222 is relative is provided with slip side plate 223, described base plate 221 bends inwards along slip side plate glide direction and forms pair of guide rails 2211, both sides, described slip side plate lower end are extended with pair of flanges 2231, described flange 2231 stretches in guide rail 2211, the guide rail that described base plate is formed is provided with slotted eye, described flange 2231 is provided with bolt hole, and described slip side plate is fixedly connected with through the bolt that runs through flange 2231 and guide rail.
Said structure main purpose is that the structure of stator as shown is non-symmetry structure, one end cross-sectional area larger the other end sectional area is less, the mediation practices of this slip side plate 223 can control the size of its notch thus realize the support that all energy is stable of stator two ends, the corresponding each stator 100 of support device is paired use in use, and two single portions are provided with a support device.
The another kind of technological scheme that the present invention adopts is as follows: a kind of impeller maintenance repair method, comprises above-mentioned power station impeller apparatus for examination and repair, it is characterized in that, comprise the following steps:
(1) lifting device is set on the outer top cover 101 of Hydropower Plant, utilizes bolt by fixing for arc seat board with on outer top cover;
(2) by the outer top cover 1-2mm of the slow jack-up of bridge machine, check that whole circle should have gap;
Should ensure during lifting that whole outer top cover 101 steadily lifts by crane, lifting device is provided with multiple and is distributed in the perimembranous of outer top cover 101 or is symmetrical arranged outside on top cover.
(3) continue the outer top cover of lifting and slowly outer top cover is promoted 900-950mm by bridge machine;
(4) between stator 100 and outer top cover 101, put into support device 20, Open Side Down arranges for the grooved part 220 of support device 20;
Be equipped with a pair support device 20 above each stator 100, namely large small end is respectively provided with one.
(5) two ends of same stator are respectively provided with a support device, and realize matching with stator upper-end surface by the size of adjustment slip side plate;
Support panel 20 upper end puts into wedge thus adjustment regulates support panel in same level, and ensure uniform force balance, a wedge i.e. cross section is the tabular body of wedge shape.
(6) fixed bridge seat in the plane is put.
Compared with prior art, the present invention has following beneficial effect: after method coordinates the support device of special designs to adopt outer top cover and supporting frame weight original place to raise axle sleeve space for maintenance by the lifting of bridge machine, directly support outer top cover, namely can carry out the every service work of guide vanes of water turbine, avoid many a large amount of manpowers of bringing of carrying trans-routings and expend and increase with risk factor.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (7)
1. a power station impeller apparatus for examination and repair, it is characterized in that, comprise several lifting stator tops outside top cover boom hoistings and for supporting the support device between outer top cover and stator, described support device comprises a hollow cylinder, described hollow cylinder lower end is provided with the grooved part for being buckled on stator upper-end surface, Open Side Down for described grooved part, and described hollow cylinder upper-end surface is provided with a support panel, and described support panel is provided with the bolt hole that can match with outer top cover.
2. a kind of power station according to claim 1 impeller apparatus for examination and repair, it is characterized in that, described boom hoisting comprises the arc seat board matched with outer top cover, an otic placode longitudinally arranged is fixedly connected with in the middle part of described arc seat board, described otic placode is provided with lifting hole(eyelet), the bolt hole that described arc seat board matches with outer top cover.
3. a kind of power station according to claim 2 impeller apparatus for examination and repair, described grooved part comprises a base plate and perpendicular to the fixed lateral plate on base plate, the side that described fixed lateral plate is relative is provided with slip side plate, described base plate bends inwards along slip side plate glide direction both sides formation pair of guide rails, both sides, described slip side plate lower end are extended with pair of flanges, described flange stretches in guide rail, the guide rail that described base plate is formed is provided with slotted eye, described flange is provided with bolt hole, and described slip side plate is fixedly connected with through the bolt that runs through flange and guide rail.
4. a kind of power station according to claim 1 impeller apparatus for examination and repair, is characterized in that, be provided with shackle in described lifting hole(eyelet), described in unload the wire rope buckled and be provided with and be hung on suspension hook.
5. an impeller maintenance repair method, comprises a kind of power station as claimed in claim 3 impeller apparatus for examination and repair, it is characterized in that, comprise the following steps:
(1) lifting device is set on the outer top cover of Hydropower Plant, utilizes bolt by fixing for arc seat board with on outer top cover;
(2) by the outer top cover 1-2mm of the slow jack-up of bridge machine, check that whole circle should have gap;
(3) continue the outer top cover of lifting and slowly outer top cover is promoted 900-950mm by bridge machine;
(4) between stator and outer top cover, put into support device, Open Side Down arranges for the grooved part of support device;
(5) two ends of same stator are respectively provided with a support device, and realize matching with stator upper-end surface by the size of adjustment slip side plate;
(6) fixed bridge seat in the plane is put.
6. a kind of impeller maintenance repair method according to claim 5, puts into wedge in support panel upper end in described step (5) thus adjustment regulates support panel in same level, ensures uniform force balance.
7. a kind of impeller maintenance repair method according to claim 5, in described step (1), lifting device is provided with multiple and is distributed in outer top cover perimembranous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410769985.4A CN104481778B (en) | 2014-12-15 | 2014-12-15 | Electric station impeller overhaul device and electric station impeller overhaul method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410769985.4A CN104481778B (en) | 2014-12-15 | 2014-12-15 | Electric station impeller overhaul device and electric station impeller overhaul method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104481778A true CN104481778A (en) | 2015-04-01 |
| CN104481778B CN104481778B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410769985.4A Active CN104481778B (en) | 2014-12-15 | 2014-12-15 | Electric station impeller overhaul device and electric station impeller overhaul method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128040A (en) * | 2020-09-23 | 2020-12-25 | 国家电网有限公司 | Method for inspecting upper and lower leakage-proof rings of vertical shaft mixed-flow water turbine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1614856A1 (en) * | 2004-07-09 | 2006-01-11 | Siemens Aktiengesellschaft | Device for demounting of a turbine or compressor blade |
| CN203557087U (en) * | 2013-11-13 | 2014-04-23 | 广西桂冠电力股份有限公司大化水力发电总厂 | Bulb cross-flow type runner blade dismounting device |
| KR20140114315A (en) * | 2014-07-28 | 2014-09-26 | 임성만 | The method of fixing a running water power generator using lifting power |
| CN204371545U (en) * | 2014-12-15 | 2015-06-03 | 国家电网公司 | A kind of power station impeller apparatus for examination and repair |
-
2014
- 2014-12-15 CN CN201410769985.4A patent/CN104481778B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1614856A1 (en) * | 2004-07-09 | 2006-01-11 | Siemens Aktiengesellschaft | Device for demounting of a turbine or compressor blade |
| CN203557087U (en) * | 2013-11-13 | 2014-04-23 | 广西桂冠电力股份有限公司大化水力发电总厂 | Bulb cross-flow type runner blade dismounting device |
| KR20140114315A (en) * | 2014-07-28 | 2014-09-26 | 임성만 | The method of fixing a running water power generator using lifting power |
| CN204371545U (en) * | 2014-12-15 | 2015-06-03 | 国家电网公司 | A kind of power station impeller apparatus for examination and repair |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128040A (en) * | 2020-09-23 | 2020-12-25 | 国家电网有限公司 | Method for inspecting upper and lower leakage-proof rings of vertical shaft mixed-flow water turbine |
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| Publication number | Publication date |
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| CN104481778B (en) | 2017-02-22 |
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