CN117051789A - Drainage overhauling channel of water diversion branch pipe plug of pumped storage power station - Google Patents
Drainage overhauling channel of water diversion branch pipe plug of pumped storage power station Download PDFInfo
- Publication number
- CN117051789A CN117051789A CN202311135614.6A CN202311135614A CN117051789A CN 117051789 A CN117051789 A CN 117051789A CN 202311135614 A CN202311135614 A CN 202311135614A CN 117051789 A CN117051789 A CN 117051789A
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- Prior art keywords
- drainage
- hole
- branch pipe
- water
- flat hole
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- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000010276 construction Methods 0.000 claims abstract description 47
- 238000012423 maintenance Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract description 10
- 238000012876 topography Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/022—Closures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The invention provides a drainage maintenance channel of a drainage branch pipe plug of a pumped storage power station, which is built at the junction of a drainage branch pipe construction branch hole and the drainage branch pipe plug, wherein one end of the drainage detection channel is communicated with the drainage branch hole of the drainage branch pipe construction, and the other end of the drainage detection channel is communicated with a drainage gallery of the lower layer of an underground plant of the pumped storage power station. The drainage overhaul channel comprises an upper flat hole, an inclined hole and a lower flat hole; the upper flat hole is communicated with the water diversion branch pipe construction branch hole; the left side and the right side of the hole are provided with water measuring weirs which are respectively connected with a diversion branch pipe construction branch hole drainage ditch and a diversion branch pipe plug drainage ditch; the lower flat hole is communicated with a lower layer drainage gallery of the underground factory building; the inclined hole is connected with the upper flat hole and the lower flat hole, and a step for the maintainer to walk is built in the inclined hole. The drainage maintenance channel automatically guides the water of the cofferdam in and around the construction branch hole into the drainage gallery of the lower layer of the underground factory building by utilizing the topography. The invention has the advantages of simple structure, low construction cost and operation cost, safety and reliability, and convenient inspection and maintenance in the operation period.
Description
Technical Field
The invention relates to a drainage overhaul channel of a pumped storage power station, in particular to a drainage overhaul channel of a water diversion branch pipe plug of the pumped storage power station, which is built at a water diversion branch pipe reverse slope construction support hole of the pumped storage power station.
Background
The construction branch hole of the water-pumping energy storage power station is led to the water-guiding branch pipe area from the bifurcation downhill slope of the traffic hole, and is usually a counter slope, after the construction of the water-guiding branch pipe section is completed, a concrete plugging section with a certain length, namely a water-guiding branch pipe plug, is required to be arranged, the structural safety of a steel pipe of the section intersecting with the construction branch hole is ensured, the seepage and collection of underground water in surrounding rock of the water-guiding branch pipe construction branch hole are prevented, the seepage path length of water seeping from the excavated free surface of the construction branch hole in the high-pressure reinforced concrete lining tunnel is prolonged. In general, a water collecting pipe is arranged in a water diversion branch pipe construction branch hole, water seepage collected by a water drainage system in a water diversion branch pipe area is led out to a water collecting tank outside a water diversion branch pipe plug in a concentrated mode, and meanwhile, incoming water such as rock mass seepage around the water diversion branch pipe construction branch hole is collected to the water collecting tank. At present, two directions come water and can't flow automatically after collecting here, need with the water pump in the catch basin pump drainage to the water sump of pumped storage power station underground powerhouse, this kind of drainage scheme has the problem:
1. the daily maintenance workload is large and the cost is high.
The pump group and the power supply line access system are required to be installed in the operation period of the pumped storage power station, pumping and draining are performed regularly, daily maintenance workload of pump group pipelines is large, pumping and draining cost is high, and daily operation and equipment maintenance are relatively troublesome.
2. There is a certain potential safety hazard.
Because the pumped storage power station is located in remote and mountain areas, the water pump station is not attended by a special person for 24 hours, and once the water pump cannot work normally due to power failure, equipment failure and other factors, the risk of flooding of the water diversion branch pipe construction branch hole occurs. In addition, there is also a leakage safety risk caused by improper maintenance and management of the power supply line and the like.
3. The inspection and maintenance are inconvenient.
Because the diversion branch pipe construction branch hole is not communicated with the overhaul channel of the drainage gallery at the lower layer of the pumped storage power station factory building, inspection or overhaul maintenance equipment needs to bypass to the diversion branch pipe plug position through the traffic hole and the construction branch hole by the pumped storage power station underground factory building, the two-position path is far, and the vehicle is generally required to travel, so that time and labor are consumed.
4. The water pumping and draining equipment needs to be installed, the cost is high, and the construction is complicated.
In order to drain the water in the water collecting tank outside the diversion branch pipe plug in time, auxiliary equipment such as a water pump set, a connecting pipeline, a power supply line, a control system and the like are required to be installed, so that the cost is high and the construction is complicated.
Disclosure of Invention
In view of the above, the invention aims to provide a drainage overhaul channel of a water-pumping energy storage power station drainage branch pipe plug, which is convenient to overhaul, convenient to patrol, low in daily equipment maintenance and operation cost and safe and reliable in operation.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the drainage inspection channel is constructed at the junction of a diversion branch pipe construction branch hole and a diversion branch pipe plug, one end of the drainage inspection channel is communicated with the diversion branch pipe construction branch hole, and the other end of the drainage inspection channel is communicated with a drainage gallery at the lower layer of an underground plant of the pumped storage power station;
the drainage overhaul channel comprises an upper flat hole, an inclined hole and a lower flat hole;
the upper flat hole is communicated with the water diversion branch pipe construction branch hole; the left side and the right side of the hole are provided with water measuring weirs which are respectively connected with a diversion branch pipe construction branch hole drainage ditch and a diversion branch pipe plug drainage ditch;
the lower flat hole is communicated with a drainage gallery at the lower layer of the underground factory building;
the inclined hole is connected with the upper flat hole and the lower flat hole, and a step for the maintainer to walk is built in the inclined hole.
Preferably, drainage ditches are respectively built at two sides of bottoms of the upper flat hole, the inclined hole and the lower flat hole, and the drainage ditches in the three holes are communicated; and the drainage ditch in the upper flat hole is communicated with the water measuring weir at the hole.
Preferably, the bottom of the upper flat hole drainage ditch and the bottom of the lower flat hole drainage ditch are both provided with water scattering slopes for promoting water flow.
Preferably, the width and the height of the drainage overhaul channel meet the normal passing requirements of overhaul maintainers.
Compared with the traditional water pumping and draining mode, the water pumping and storing power station water diversion branch pipe plug drainage maintenance channel has the following advantages:
(1) The operation cost is low, and the safety and reliability are realized.
The construction support hole of the water diversion branch pipe of the conventional pumped storage power station is generally a counter slope, and drainage of the construction support hole of the water diversion branch pipe and the plug of the water diversion branch pipe is required to be pumped and drained through a water pump, so that equipment maintenance and operation cost are high. The drainage detection channel is built between the diversion branch pipe construction branch hole and the lower drainage gallery of the underground powerhouse of the power station, water in the diversion branch pipe construction branch hole and the diversion branch pipe plug and water leakage of surrounding rock mass are discharged into the lower drainage gallery of the underground powerhouse of the power station in a self-flowing mode by utilizing the topography, any electrical equipment is not required to be installed and maintained, a power supply is not required to be arranged, the operation cost is low, the maintenance is not required, the water pump can safely operate for 24 hours, and the water pump is safe and reliable, and the flooding risk caused by the fact that the water pump cannot normally operate due to power failure, equipment failure and the like is avoided; meanwhile, the leakage safety risk caused by improper maintenance and management of a power supply circuit, a control switch and the like is avoided.
(2) The operation period inspection and maintenance and the monitoring are convenient.
According to the drainage channel disclosed by the invention, the diversion branch pipe construction branch hole is communicated with the lower drainage gallery of the underground powerhouse of the power station in a barrier-free manner, the walking steps are built in the drainage channel, and inspection and maintenance personnel can directly pick up the walking steps from the lower drainage gallery of the underground powerhouse of the power station to the diversion branch pipe construction branch hole and the diversion branch pipe area to check the drainage condition and the seepage quantity, so that great convenience is brought to inspection, maintenance and monitoring in the running period.
(3) The invention has simple structure and arrangement and is safe and reliable.
Because the drainage branch pipe construction branch hole area is a counter slope, the invention fully utilizes the characteristics of the area, and forms a drainage overhaul channel for communicating the drainage branch pipe construction branch hole with the drainage gallery of the lower layer of the underground factory building through the self-structure blasting of surrounding rocks, the structural arrangement is simple, the safety and the reliability are high, and the inspection and overhaul in the running period are normalized.
(4) The construction is simple.
The invention only needs to excavate a tunnel in the construction period by blasting, has simple construction and low technical requirements, and does not need to add complicated construction and installation processes such as a pump group, a power supply line and the like.
Drawings
FIG. 1 is a schematic plan layout of a drainage service channel of the present invention;
FIG. 2 is a schematic view of a drainage service channel longitudinal section arrangement of the present invention;
fig. 3 is a cross-sectional view of the drainage service channel of the present invention.
Detailed Description
The structure and features of the present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that various modifications can be made to the embodiments disclosed herein, and thus, the embodiments disclosed in the specification should not be taken as limiting the invention, but merely as exemplifications of embodiments, which are intended to make the features of the invention apparent.
As shown in fig. 1 and 2, a construction branch hole 1 of a water-storage power station diversion branch pipe is led to a region of a diversion branch pipe 3 from a traffic hole 2 in a branching downhill manner, and is usually a counter-slope. After the construction of the water diversion branch pipe section is completed, a section of concrete plugging section, namely a water diversion branch pipe plug 4, is arranged at the upstream of the water diversion branch pipe area. In the invention, a drainage overhaul channel 5 is built at the junction of a water diversion branch pipe construction support hole 1 and a water diversion branch pipe plug 4, one end of the drainage overhaul channel 5 is communicated with the water diversion branch pipe construction support hole 1, and the other end is communicated with a drainage gallery 6 at the lower layer of an underground factory building of a pumped storage power station. The drainage overhaul channel 5 leads the water in the diversion branch pipe construction branch hole 1 and the water leakage of surrounding cofferdams to the drainage gallery 6 at the lower layer of the underground powerhouse, and then the water is discharged to the water collecting well 7 of the underground powerhouse. The width and the height of the drainage overhaul channel meet the normal passing requirements of overhaul maintainers.
As shown in fig. 1-3, the drainage overhaul channel 5 of the drainage branch pipe plug of the pumped storage power station comprises an upper flat hole 51, an inclined hole 52 and a lower flat hole 53.
The upper flat hole 51 is communicated with the water diversion branch pipe construction branch hole 1. The left side and the right side of the opening are provided with water measuring weirs 51B, and the water measuring weirs 51B are respectively connected with a diversion branch pipe construction branch hole drainage ditch and a diversion branch pipe plug drainage ditch and are used for monitoring the water supply quantity of the diversion branch pipe area and the upstream side of the diversion branch pipe construction branch hole and converging water into the upper flat hole 51. Drainage ditches 51A are built on two sides of the bottom in the upper flat hole, the left drainage ditches 51A and the right drainage ditches 51A are respectively communicated with water measuring weirs 51B on the left side and the right side of an inlet of the upper flat hole, a water dispersing gradient is arranged on a bottom plate of the drainage ditches, and water collected at the bottom of the upper flat hole is guaranteed to flow to the inclined hole 52 as soon as possible.
The lower flat hole 53 is communicated with the lower layer drainage gallery 6 of the underground plant, drainage ditches 53A are built on two sides of the bottom in the hole, and the bottom plate of each drainage ditch is provided with a water scattering gradient, so that water collected at the bottom of the lower flat hole can flow to the lower layer drainage gallery 6 of the underground plant as soon as possible.
The inclined hole 52 is connected with the upper flat hole 51 and the lower flat hole 53, a step 52B for a maintainer to walk is built in the hole, drainage ditches 52A are built on two sides of the bottom in the hole, and the drainage ditches 52A on two sides of the bottom of the inclined hole 52 are in butt joint communication with the upper flat hole drainage ditches 51A and the lower flat hole drainage ditches 53A. The water collected in the upper flat hole 51 is discharged into the lower layer drainage gallery 6 of the underground building through the upper flat hole drainage ditch 51A, the inclined hole drainage ditch 52A and the lower flat hole drainage ditch 53A, and then is discharged into the water collecting well 7 of the underground building.
Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (4)
1. The utility model provides a water storage power station draws water branch pipe end cap drainage maintenance passageway which characterized in that: the drainage detection channel is built at the junction of the construction branch hole of the water diversion branch pipe and the plug of the water diversion branch pipe, one end of the drainage detection channel is communicated with the construction branch hole of the water diversion branch pipe, and the other end of the drainage detection channel is communicated with a drainage gallery at the lower layer of an underground factory building of the pumped storage power station;
the drainage overhaul channel comprises an upper flat hole, an inclined hole and a lower flat hole;
the upper flat hole is communicated with the water diversion branch pipe construction branch hole; the left side and the right side of the opening of the upper flat hole are provided with water measuring weirs which are respectively connected with a diversion branch pipe construction support hole drainage ditch and a diversion branch pipe plug drainage ditch;
the lower flat hole is communicated with a drainage gallery at the lower layer of the underground factory building;
the inclined hole is connected with the upper flat hole and the lower flat hole, and a step for the maintainer to walk is built in the inclined hole.
2. The pumped storage power station water diversion branch pipe plug drainage service passage according to claim 1, wherein: drainage ditches are respectively built at two sides of bottoms of the upper flat hole, the inclined hole and the lower flat hole, and the drainage ditches in the three holes are communicated;
the drainage ditch in the upper flat hole is communicated with the water measuring weir at the hole.
3. The pumped storage power station water diversion branch pipe plug drainage service passage according to claim 2, wherein: the bottom of the upper flat hole drainage ditch and the bottom of the lower flat hole drainage ditch are both provided with water scattering slopes for promoting water flow.
4. A pumped storage power station water diversion branch pipe plug drainage service passage according to any one of claims 1-3, wherein: the width and the height of the drainage overhaul channel meet the normal passing requirements of overhaul maintainers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311135614.6A CN117051789A (en) | 2023-09-05 | 2023-09-05 | Drainage overhauling channel of water diversion branch pipe plug of pumped storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311135614.6A CN117051789A (en) | 2023-09-05 | 2023-09-05 | Drainage overhauling channel of water diversion branch pipe plug of pumped storage power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117051789A true CN117051789A (en) | 2023-11-14 |
Family
ID=88662602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311135614.6A Pending CN117051789A (en) | 2023-09-05 | 2023-09-05 | Drainage overhauling channel of water diversion branch pipe plug of pumped storage power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117051789A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202064330U (en) * | 2011-04-29 | 2011-12-07 | 中国水电顾问集团华东勘测设计研究院 | Pressure steel pipe inspection access channel structure for high-head hydropower plant |
| CN204024707U (en) * | 2014-07-22 | 2014-12-17 | 中国电建集团北京勘测设计研究院有限公司 | A kind of tailwater tunnel working tunnel discharge structure |
| CN112323742A (en) * | 2020-11-13 | 2021-02-05 | 浙江省水利水电勘测设计院 | Construction branch tunnel with turnout |
| CN215669375U (en) * | 2021-02-23 | 2022-01-28 | 中国电建集团华东勘测设计研究院有限公司 | Construction branch hole and pressure pipeline drainage gallery and maintenance hole combined arrangement structure |
| CN114438978A (en) * | 2022-01-25 | 2022-05-06 | 中国电建集团成都勘测设计研究院有限公司 | Hydropower station factory building fire-fighting water supply system |
| CN217267334U (en) * | 2022-02-18 | 2022-08-23 | 中国电建集团成都勘测设计研究院有限公司 | Diversion tunnel overhauls hole arrangement structure |
| CN116537129A (en) * | 2023-06-25 | 2023-08-04 | 黄河勘测规划设计研究院有限公司 | Traffic and drainage method for water delivery main tunnel overhaul |
-
2023
- 2023-09-05 CN CN202311135614.6A patent/CN117051789A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202064330U (en) * | 2011-04-29 | 2011-12-07 | 中国水电顾问集团华东勘测设计研究院 | Pressure steel pipe inspection access channel structure for high-head hydropower plant |
| CN204024707U (en) * | 2014-07-22 | 2014-12-17 | 中国电建集团北京勘测设计研究院有限公司 | A kind of tailwater tunnel working tunnel discharge structure |
| CN112323742A (en) * | 2020-11-13 | 2021-02-05 | 浙江省水利水电勘测设计院 | Construction branch tunnel with turnout |
| CN215669375U (en) * | 2021-02-23 | 2022-01-28 | 中国电建集团华东勘测设计研究院有限公司 | Construction branch hole and pressure pipeline drainage gallery and maintenance hole combined arrangement structure |
| CN114438978A (en) * | 2022-01-25 | 2022-05-06 | 中国电建集团成都勘测设计研究院有限公司 | Hydropower station factory building fire-fighting water supply system |
| CN217267334U (en) * | 2022-02-18 | 2022-08-23 | 中国电建集团成都勘测设计研究院有限公司 | Diversion tunnel overhauls hole arrangement structure |
| CN116537129A (en) * | 2023-06-25 | 2023-08-04 | 黄河勘测规划设计研究院有限公司 | Traffic and drainage method for water delivery main tunnel overhaul |
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