CN203307785U - Buried pressure pipe exterior drainage structure of hydropower station - Google Patents
Buried pressure pipe exterior drainage structure of hydropower station Download PDFInfo
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- CN203307785U CN203307785U CN2013203241585U CN201320324158U CN203307785U CN 203307785 U CN203307785 U CN 203307785U CN 2013203241585 U CN2013203241585 U CN 2013203241585U CN 201320324158 U CN201320324158 U CN 201320324158U CN 203307785 U CN203307785 U CN 203307785U
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- steel pipe
- steel
- water collecting
- channel
- catchments
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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 relates to a buried pressure pipe exterior drainage structure of a hydropower station and aims to reduce the risk that drainage pipes are blocked by sundries or grout and to facilitate quality control in the processes of construction installation and construction. The technical scheme is that the buried pressure pipe exterior drainage structure comprises a group of circumferential water collecting steel channels coaxially arranged on the outer surface of a steel pipe, every two adjacent water collecting grooves are equal in distance, and the water collecting steel channels are encircled with the pipe wall of the steel pipe to form a group of circumferential water collecting cavities. The buried pressure pipe exterior drainage structure is characterized in that the steel pipe is in spot welding connection with the water collecting steel channels, industrial soap is coated on the outer side of the joint of the steel pipe and the water collecting steel channels as well as welding-spot-free positions, non-woven fabric is paved on the surface of the steel pipe, the bottom of the steel pipe is provided with a plurality of drainage pipes which are in parallel with the steel pipe, and the drainage pipes are communicated with the interiors of the water collecting cavities. The buried pressure pipe exterior drainage structure can be applied to the hydraulic and hydropower engineering.
Description
Technical field
The utility model relates to the outer discharge structure of the embedded penstock in a kind of power station, mainly is applicable in Hydraulic and Hydro-Power Engineering.
Background technology
According to the country rock hydrogeological conditions, at the nearly factory building section of diversion and power system operated by rotary motion penstock, carry out antiseepage, prevent from high pressure that water exosmoses factory building or side slope are caused to adverse effect.The external water pressure of penstock has two sources, and the one, the groundwater pressure of massif self, the 2nd, in the reinforced concrete lining layer of steel pipe upstream, water exosmoses and acts on the water pressure on steel pipe.Wherein the massif groundwater pressure is comparatively stable, and interior water exosmoses and acts on water pressure on steel pipe often along with the emptying of diversion pipeline is dissipated voluntarily, but also exist long-term in the water water pressure formed of exosmosing in the emptying of diversion pipeline, comparatively fast have little time situation about dissipating.All above-mentioned situations, the external water pressure of formation steel pipe.Steel pipe has very large bearing capacity under interior pressure effect, but under external pressure often than " fragility ", easy unstability.Therefore, need to control the steel pipe external water pressure, prevent the external pressure unstability.Control measure commonly used are included in penstock top collector drain etc. are set, though the outer draining of steel pipe self designs often as safety allowance, in the hydroelectric project design, the measure of this safety allowance is essential traditionally at home.
The outer draining of steel pipe self design is domestic several method at present, and be respectively: steel pipe arranges four outward and is parallel to the gutters that steel pipe is arranged, the later stage be in the milk and utilized the hole drill that steel pipe has been opened to lead to gutter afterwards, then by the hole shutoff; Catchment channel-section steel and efflux water along the angle steel combination that outer wall of steel pipe is close to steel pipe of hoop is adopted in not perforate of steel pipe, steel pipe outward.The said method working procedure is comparatively complicated, and the more difficult control of quality has occurred that in actual use gutter is by the situation of foreign material or grouting slurry plugs.
Summary of the invention
The technical problems to be solved in the utility model is: for the characteristics of the distinctive safety allowance of outside drainage of steel pipe pipe self, provide the embedded penstock in a kind of power station outer discharge structure, to reduce gutter by the risk of foreign material or grouting slurry plugs, the quality control in convenient construction installation simultaneously and work progress.
The technical scheme that the utility model adopts is: the outer discharge structure of the embedded penstock in power station, comprise coaxially arranged one group of hoop in outer surface of steel tube channel-section steel that catchments, adjacent two spacings of catchmenting between channel-section steel equate, respectively catchment channel-section steel and steel pipe tube wall surrounds and forms one group of annular cavity that catchments, it is characterized in that: described steel pipe is connected with the employing spot welding between channel-section steel of catchmenting, the outside of both joints and no-welding-spot position scribble industrial soap, and lay nonwoven on surface; Described steel pipe bottom is provided with the gutter of some layouts in parallel, and described gutter is communicated with the cavity inside that respectively catchments.
Described gutter is connected with the employing threeway between cavity of respectively catchmenting.
Described nonwoven is bonded in steel pipe and the channel-section steel external surface that catchments by glue.
Described gutter is zinc-plated gutter.
The beneficial effects of the utility model are: 1, the single employing hoop of the utility model channel-section steel that catchments, and the channel-section steel that catchments is communicated with gutter by threeway with the cavity inside that catchments that steel pipe surrounds formation, not only simplified outer discharge structure, and reduced gutter by the risk of foreign material or grouting slurry plugs, thereby guaranteed the stability of draining.2, relative prior art, cancelled the hoop channel-section steel outsourcing rope made of hemp that catchments, change nonwoven into, and adopt glue to be bonded in the outer wall of steel pipe surface, more constructability install and work progress in quality control.
The accompanying drawing explanation
Fig. 1 is layout plan of the present utility model.
Fig. 2 is section arrangement diagram of the present utility model.
Fig. 3 is partial enlarged drawing of the present utility model.
The specific embodiment
As shown in Figure 1-Figure 3, the present embodiment comprises coaxially arranged one group of hoop in steel pipe 1 external surface channel-section steel 2 that catchments, and adjacent two spacings of catchmenting between channel-section steel 2 equate, respectively catchment channel-section steel 2 and steel pipe 1 tube wall surround and form one group of annular cavity 3 that catchments; Described steel pipe 1 adopts spot welding (spacer bar weldering) to be connected with catchmenting between channel-section steel 2, steel pipe 1 scribbles industrial soap 4 with the outside and the no-welding-spot position of channel-section steel 2 joints of catchmenting, and on surface, lays nonwoven 5(and adopt glue that nonwoven is bonded in to steel pipe and the channel-section steel external surface that catchments); Described steel pipe 1 bottom is provided with the gutter 6 of some layouts in parallel, described gutter 6, by threeway 7 and cavity 3 internal communication of respectively catchmenting, puts together and passes through drain passage (collector drain or collecting well) and discharge for the water in cavity 3 that infiltration is catchmented.
Described gutter 6 is zinc-plated gutter, to improve its Corrosion Protection, increases the service life.
Claims (4)
1. the outer discharge structure of the embedded penstock in power station, comprise coaxially arranged one group of hoop in steel pipe (1) external surface channel-section steel (2) that catchments, adjacent two spacings of catchmenting between channel-section steel (2) equate, respectively catchment channel-section steel (2) and steel pipe (1) tube wall surrounds and forms one group of annular cavity (3) that catchments, it is characterized in that: between described steel pipe (1) and the channel-section steel that catchments (2), adopt spot welding to be connected, the outside of both joints and no-welding-spot position scribble industrial soap (4), and lay nonwoven (5) on surface; Described steel pipe (1) bottom is provided with the gutter (6) of some layouts in parallel, described gutter (6) and cavity (3) internal communication of respectively catchmenting.
2. the outer discharge structure of the embedded penstock in power station according to claim 1 is characterized in that: adopt threeway (7) to be connected between described gutter (6) and the cavity that respectively catchments (3).
3. the outer discharge structure of the embedded penstock in power station according to claim 1 and 2, it is characterized in that: described nonwoven (5) is bonded in steel pipe (1) and the channel-section steel that catchments (2) external surface by glue.
4. the outer discharge structure of the embedded penstock in power station according to claim 1 and 2, it is characterized in that: described gutter (6) is zinc-plated gutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203241585U CN203307785U (en) | 2013-06-06 | 2013-06-06 | Buried pressure pipe exterior drainage structure of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203241585U CN203307785U (en) | 2013-06-06 | 2013-06-06 | Buried pressure pipe exterior drainage structure of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203307785U true CN203307785U (en) | 2013-11-27 |
Family
ID=49614003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203241585U Expired - Fee Related CN203307785U (en) | 2013-06-06 | 2013-06-06 | Buried pressure pipe exterior drainage structure of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203307785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832707A (en) * | 2015-04-14 | 2015-08-12 | 成都聚智工业设计有限公司 | Pressure steel pipe embedded structure |
| CN108149652A (en) * | 2018-01-25 | 2018-06-12 | 浙江水利水电学院 | Power station diversion pressure steel tube periphery hydraulic pressure Force control system and application method |
-
2013
- 2013-06-06 CN CN2013203241585U patent/CN203307785U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832707A (en) * | 2015-04-14 | 2015-08-12 | 成都聚智工业设计有限公司 | Pressure steel pipe embedded structure |
| CN108149652A (en) * | 2018-01-25 | 2018-06-12 | 浙江水利水电学院 | Power station diversion pressure steel tube periphery hydraulic pressure Force control system and application method |
| CN108149652B (en) * | 2018-01-25 | 2019-09-17 | 浙江水利水电学院 | Power station diversion pressure steel tube periphery hydraulic pressure Force control system and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20131127 |