CN202755355U - Overhaul drainage structure of through-flow hydropower station - Google Patents
Overhaul drainage structure of through-flow hydropower station Download PDFInfo
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- CN202755355U CN202755355U CN2012204250888U CN201220425088U CN202755355U CN 202755355 U CN202755355 U CN 202755355U CN 2012204250888 U CN2012204250888 U CN 2012204250888U CN 201220425088 U CN201220425088 U CN 201220425088U CN 202755355 U CN202755355 U CN 202755355U
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- water pipe
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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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Abstract
The utility model discloses an overhaul drainage structure of a through-flow type hydropower station. The overhaul drainage structure of the through-flow type hydropower station comprises a drainage gallery, a water-collecting well and drainage pipes, wherein the drainage pipes are respectively communicated with the lowest position of the upstream of a flow channel, the lowest position of the downstream of the flow channel and the drainage gallery. An upstream drainage pipe is provided with a water drain valve which is arranged in an inlet of the upstream drainage pipe and a downstream drainage pipe is provided with a water drain valve which is arranged on an inlet of the downstream drainage pipe. The overhaul drainage structure of the through-flow type hydropower station is mainly used for the through-flow type hydropower stations which are arranged on rivers with much silt. The overhaul drainage structure of the through-flow type hydropower station has the advantages of being simple in structure, high in safety, and capable of timely, controllably and conveniently discharging flow channel water accumulation, improving work efficiency and safety, shortening overhaul time and increasing power generation benefits of the hydropower stations.
Description
Technical field
The utility model relates to the drainage for overhaul structure in power station, particularly a kind of drainage for overhaul structure that is mainly used in the tubular power station on the fully-loaded stream.
Background technology
The drainage for overhaul structure in power station is the common facility in the hydroelectric station design, as shown in Figure 1, according to the characteristics of tubular unit runner, for satisfying the unit maintenance drainage requirement, need respectively arrange in the runner upstream and downstream gutter in the prior art.Upstream row water pipe 1 ' drains into collector drain 6 ' to runner upstream ponding from 5 ' bottom, generator vertical support basis, downstream row water pipe 2 ' drains into collector drain 6 ' to downstream ponding from draft tube 7 ' lowest part, ponding converges to collecting well through collector drain, then drained by water pump, the upstream row water pipe vertically arranges upstream tube discharging valve 4 ' generator bottom enter hole 3 ' or water wheels motor-pumped well 8 ' upstream side, and the downstream row water pipe vertically arranges downstream tube discharging valve 14 ' in water wheels motor-pumped well 8 ' downstream.Upstream tube discharging valve 4 ' and downstream tube discharging valve 14 ' are separately positioned on the middle part of upstream row water pipe 1 ' and downstream row water pipe 2 ', and 13 ' is the runner upstream.
But when the drainage for overhaul structure in the tubular power station of said structure was used for tubular power station on the fully-loaded stream, gutter can not in time be got rid of runner ponding easily by the silt silting, and the unit maintenance time lengthening has been lost the power station power benefit.
The utility model content
The technical problems to be solved in the utility model is that a kind of simple in structure, safe tubular power station drainage for overhaul structure is provided.
The technical solution adopted in the utility model is: a kind of drainage for overhaul structure of tubular power station, comprise collector drain, collecting well, generator bottom enter hole, generator vertical support, the upstream row water pipe that is communicated with runner upstream and collector drain respectively, the downstream row water pipe that is communicated with draft tube and collector drain respectively, be arranged on the upstream tube discharging valve on the upstream row water pipe and be arranged on downstream discharging valve on the downstream row water pipe, described upstream tube discharging valve is arranged in the water inlet of upstream row water pipe, and the downstream tube discharging valve is arranged in the water inlet of downstream row water pipe.
Described generator bottom enter hole upstream extends to below, generator vertical support bottom, form installing space, described gutter water inlet is arranged on side, generator vertical support rear, the upstream tube discharging valve is arranged in the installing space of generator bottom enter hole formation below generator vertical support bottom, connect the water inlet that generator vertical support base plate stretches to the upstream row water pipe, at draft tube lower space setting operation gallery, operating gallery extends to downstream drainage water inlet tube mouth below, the downstream tube discharging valve is arranged on the end of operating gallery, connects the water inlet that the operating gallery top board stretches to the downstream row water pipe.
Described upstream tube discharging valve and downstream tube discharging valve adopt lower operated disc type valve.
Be respectively arranged with trashrack at the water inlet of described upstream row water pipe and the water inlet of downstream row water pipe.
The beneficial effects of the utility model are: the water inlet of offering the upstream row water pipe in side, tubular hydropower generator vertical support rear, generator bottom enter hole upstream extends the installation discharging valve, utilize the draft tube lower space to establish an operating gallery, operating gallery extends to downstream row water pipe import below, at the operating gallery end discharging valve is set, gutter can be by silt and dirt silting, can be timely during unit maintenance, get rid of easily the runner internal water accumulation, realize the controlled discharging of drainage for overhaul safety, efficient and the safety of fully-loaded stream tubular power station service work have greatly been improved, effectively shorten the repair time, increased the power benefit in power station.
Description of drawings
Fig. 1 is the sectional drawing of drainage for overhaul structural configuration mode in the tubular power station of prior art.
Fig. 2 is the plan view of the drainage for overhaul structure in tubular power station of the present utility model.
Fig. 3 is that A-A of Fig. 2 is to sectional drawing.
Fig. 4 is that B-B of Fig. 2 is to sectional drawing.
Fig. 5 is that C-C of Fig. 2 is to sectional drawing.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Shown in Fig. 2-5, the drainage for overhaul structure in tubular power station of the present utility model, comprise collector drain 6, collecting well 12, generator bottom enter hole 3, generator vertical support 5, the upstream row water pipe 1 that is communicated with runner upstream 13 and collector drain 6 respectively, the downstream row water pipe 2 that is communicated with draft tube 7 and collector drain 6 respectively, be arranged on upstream tube discharging valve 4 and the downstream discharging valve 14 that is arranged on the downstream row water pipe 2 on the upstream row water pipe 1, described upstream tube discharging valve 4 is arranged in the water inlet 10 of upstream row water pipe, and downstream tube discharging valve 14 is arranged in the water inlet 15 of downstream row water pipe.
Described generator bottom enter hole 3 upstream extends to below, generator vertical support 5 bottoms, form installing space, described gutter water inlet 10 is arranged on side, generator vertical support 5 rear, upstream tube discharging valve 4 is arranged in the installing space that generator bottom enter hole 3 forms below generator vertical support 5 bottoms, connect the water inlet 10 that generator vertical support 5 base plates stretch to the upstream row water pipe, at draft tube 7 lower space setting operation gallerys 9, operating gallery 9 extends to downstream row water pipe 2 water inlets below, downstream tube discharging valve 14 is arranged on the end of operating gallery 9, connects the water inlet 15 that operating gallery 9 top boards stretch to the downstream row water pipe.
Described upstream tube discharging valve 4 and downstream tube discharging valve 14 adopt lower operated disc type valve.
Be respectively arranged with trashrack 11 at the water inlet 10 of described upstream row water pipe and the water inlet 15 of downstream row water pipe.
Present embodiment comprises three groups of separate upstream row water pipes 1 and downstream row water pipe 2, every group of corresponding factory building unit of gutter, upstream row water pipe 1 is communicated with runner upstream 13 and collector drain 6 collecting wells 12, downstream row water pipe 2 is communicated with draft tube 7 and collector drain 6 collecting wells 12, every gutter is all installed a discharging valve 4,14, and discharging valve is arranged in the gutter import, prevents that gutter is by the silt silting.
Present embodiment middle and upper reaches gutter 1 is offered water inlet 10 in side, generator vertical support 5 rear, and generator bottom enter hole 3 upstream extends installation discharging valve 4; Downstream row water pipe 2 utilizes draft tube 7 lower space to establish an operating gallery 9, and operating gallery 9 extends to downstream row water pipe 2 water inlets below from water wheels motor-pumped well 8 downstream sidewalls, at the operating gallery 9 terminal discharging valves 14 of installing; For preventing that foreign material silt gutter up, the trashrack 11 of steel work processing is set at the gutter water inlet.
For guaranteeing Power station structure safety, generator bottom enter hole 3 upstream extension need strengthen arrangement of reinforcement, gutter water inlet 10 will be avoided generator vertical support embedded part and downstream will guarantee to leave enough concrete structure thickness (should greater than 500mm), guarantee to leave enough concrete structure thickness (should greater than 1500mm) between draft tube 7 and the operating gallery 9, collector drain 6 can suitably reduce and guarantees to leave enough concrete structure thickness (should greater than 500mm) between elevation and the operating gallery 9.
Above-described embodiment only is used for illustrating technological thought of the present utility model and characteristics, its purpose is to make those skilled in the art can understand content of the present utility model and implements according to this, can not only limit claim of the present utility model with present embodiment, be equal variation or the modification that spirit that all the utility model disclose is done, still drop in the claim of the present utility model.
Claims (4)
1. the drainage for overhaul structure in a tubular power station, comprise collector drain (6), collecting well (12), generator bottom enter hole (3), generator vertical support (5), the upstream row water pipe (1) that is communicated with runner upstream (13) and collector drain (6) respectively, the downstream row water pipe (2) that is communicated with draft tube (7) and collector drain (6) respectively, be arranged on the upstream tube discharging valve (4) on the upstream row water pipe (1) and be arranged on downstream discharging valve (14) on the downstream row water pipe (2), it is characterized in that: described upstream tube discharging valve (4) is arranged in the water inlet (10) of upstream row water pipe, and downstream tube discharging valve (14) is arranged in the water inlet (15) of downstream row water pipe.
2. the drainage for overhaul structure in tubular power station according to claim 1, it is characterized in that: described generator bottom enter hole (3) upstream extends to below, generator vertical support (5) bottom, form installing space, described gutter water inlet (10) is arranged on generator vertical support (5) side, rear, upstream tube discharging valve (4) is arranged on generator bottom enter hole (3) in the installing space that below, generator vertical support (5) bottom forms, connect the water inlet (10) that generator vertical support (5) base plate stretches to the upstream row water pipe, at draft tube (7) lower space setting operation gallery (9), operating gallery (9) extends to downstream row water pipe (2) water inlet below, downstream tube discharging valve (14) is arranged on the end of operating gallery (9), connects the water inlet (15) that operating gallery (9) top board stretches to the downstream row water pipe.
3. the drainage for overhaul structure in tubular power station according to claim 2 is characterized in that: operated disc type valve under described upstream tube discharging valve (4) and downstream tube discharging valve (14) adopt.
4. according to claim 1, the drainage for overhaul structure in 2 or 3 described tubular power stations, it is characterized in that: be respectively arranged with trashrack (11) at the water inlet (10) of described upstream row water pipe and the water inlet (15) of downstream row water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204250888U CN202755355U (en) | 2012-08-24 | 2012-08-24 | Overhaul drainage structure of through-flow hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204250888U CN202755355U (en) | 2012-08-24 | 2012-08-24 | Overhaul drainage structure of through-flow hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755355U true CN202755355U (en) | 2013-02-27 |
Family
ID=47734544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204250888U Withdrawn - After Issue CN202755355U (en) | 2012-08-24 | 2012-08-24 | Overhaul drainage structure of through-flow hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202755355U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808399A (en) * | 2012-08-24 | 2012-12-05 | 中水北方勘测设计研究有限责任公司 | Service drainage structure of through flow hydropower station |
| CN104120693A (en) * | 2014-08-12 | 2014-10-29 | 广东梅雁吉祥水电股份有限公司 | Energy-saving drainage system for bulb through-flow generator units |
-
2012
- 2012-08-24 CN CN2012204250888U patent/CN202755355U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808399A (en) * | 2012-08-24 | 2012-12-05 | 中水北方勘测设计研究有限责任公司 | Service drainage structure of through flow hydropower station |
| CN104120693A (en) * | 2014-08-12 | 2014-10-29 | 广东梅雁吉祥水电股份有限公司 | Energy-saving drainage system for bulb through-flow generator units |
| CN104120693B (en) * | 2014-08-12 | 2016-01-20 | 广东梅雁吉祥水电股份有限公司 | The energy-saving drainage system of a kind of bulb type generator set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130227 Effective date of abandoning: 20150114 |
|
| RGAV | Abandon patent right to avoid regrant |