CN220414163U - Combined shaft structure of drop spillway and drain pipe overhaul gate of pumped storage power station - Google Patents
Combined shaft structure of drop spillway and drain pipe overhaul gate of pumped storage power station Download PDFInfo
- Publication number
- CN220414163U CN220414163U CN202321681593.3U CN202321681593U CN220414163U CN 220414163 U CN220414163 U CN 220414163U CN 202321681593 U CN202321681593 U CN 202321681593U CN 220414163 U CN220414163 U CN 220414163U
- Authority
- CN
- China
- Prior art keywords
- spillway
- drain pipe
- section
- diversion
- drop
- Prior art date
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 238000010248 power generation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Landscapes
- Barrages (AREA)
Abstract
The utility model relates to the technical field of hydroelectric engineering, in particular to a combined shaft structure of a drop spillway and a drain pipe overhaul gate of a pumped storage power station, which comprises a circular shaft and a square shaft, wherein the circular shaft is the drop spillway, and the center line of the circular shaft is positioned on the axis of a water return tunnel; the square vertical shaft is a water drain pipe overhaul gate vertical shaft, and the center line of the square vertical shaft is positioned on the axes of the diversion tunnel and the water drain pipe; the top of the inlet weir of the falling flow spillway is provided with a plurality of diversion piers, the tail curves of the diversion piers are arc-shaped, and the side edge of the square vertical shaft, which is close to the falling flow spillway, is also arc-shaped and is used as one diversion pier of the falling flow spillway.
Description
Technical Field
The utility model relates to the technical field of water conservancy and hydropower engineering, in particular to a combined shaft structure of a drop spillway and a drain pipe overhaul gate of a pumped storage power station.
Background
The pumped storage power station mainly comprises an upper reservoir, a lower reservoir and a diversion power generation system, wherein the operation scheduling of a water discharging building of the lower reservoir is required to meet the functional requirements of flood discharging, emptying, balancing the water level of the upper reservoir and the lower reservoir, ensuring ecological flow and the like, and meanwhile, diversion tunnels are required to be arranged in the construction period to provide dry construction conditions for the building. Under this functional requirement, the lower reservoir typically requires the placement of three drainage structures:
(1) Diversion tunnel: the main function is diversion in the construction period, so that the inlet and outlet of the diversion valve are low in Cheng Yiban, and the inlet in the operation period is mostly free of operation conditions due to high water head, clogging and the like;
(2) Falling flood spillway: the main function is to release large-flow flood (including water coming from a warehouse during power generation), which consists of a vertical falling flow vertical shaft and a water return tunnel, the inlet elevation is higher, the discharging capacity is higher, and the water level can be controlled to be about the normal water storage level;
(3) Drainage pipe: the discharging capacity is smaller, and the discharging device is mainly used for releasing ecological flow and discharging the air of a lower reservoir and has the flood discharging function.
In order to realize the functions of opening and closing control, overhaul and the like of the three water discharge buildings, the water inlet building is required to be arranged for the three water discharge buildings. In the conventional design, a water inlet building is generally arranged for each drainage building in a relatively concentrated range, and most of the water inlet buildings are in a tower (well) type, but the following problems exist in the scheme:
(1) The arrangement difficulty is large: the inlet arrangement of various drainage buildings is usually centralized, the axes of the drainage buildings need to avoid each other, and the design difficulty of the arrangement scheme is high;
(2) The engineering quantity is large: each drainage building is provided with a respective water inlet tower (well), the number of the buildings is large, and in order to realize traffic on the top of the tower (well), traffic bridges, roads and the like are additionally arranged, so that the engineering quantity is large;
(3) The construction difficulty is high: each kind of drainage building generally needs to arrange respective traffic channel and construction operation platform and utensil, and each building construction arrangement scheme coordinates complicacy, and the construction degree of difficulty is great.
Disclosure of Invention
The utility model provides a combined shaft structure of a drop spillway and a drain pipe overhaul gate of a pumped storage power station, which aims to solve the problems of large arrangement difficulty, large engineering quantity, large construction difficulty and the like in the arrangement of a reservoir water discharge building under the pumped storage power station.
The technical purpose of the utility model is realized by the following technical scheme: the combined shaft structure of the drop spillway and the drain pipe overhaul gate of the pumped storage power station comprises a round shaft and a square shaft, wherein the round shaft is the drop spillway, and the center line of the round shaft is positioned on the axis of the water return tunnel; the square vertical shaft is a water drain pipe overhaul gate vertical shaft, and the center line of the square vertical shaft is positioned on the axes of the diversion tunnel and the water drain pipe; the top of the inlet weir of the falling flow spillway is provided with a plurality of diversion piers, the tail curves of the diversion piers are arc-shaped, and the side edge of the square vertical shaft, which is close to the falling flow spillway, is also arc-shaped and is used as one diversion pier of the falling flow spillway.
In the preferred scheme, the falling flow spillway is composed of three parts in the vertical direction, namely a practical weir inlet section, a falling flow section and an energy dissipation well section, wherein a bottom plate of the inlet section adopts a practical weir curve.
In the preferred scheme, set up the access panel door well in the drain pipe access door shaft, the access panel door well is opened and close by the gate headstock gear at top, be equipped with the panel gate well air vent in the access panel door well.
In the preferred scheme, the end of the falling section of the falling flow type spillway is connected with a water-return tunnel, the water-return tunnel is reconstructed by a diversion tunnel, and the top of the inlet section is provided with a vent.
In the preferred scheme, the axis of diversion tunnel is equipped with the turn, is equipped with the end cap before the turn section, turns back end and the coaxial line of diversion tunnel, the drain pipe is arranged with diversion tunnel coaxial line.
In the preferred scheme, the drain pipe is formed by five parts of an inlet, an upper flat section, a gradual change section, a gate well section, a lower bending section and a gentle slope section along the axial direction of the diversion tunnel.
In the preferred scheme, the axial rotation angle of the diversion tunnel and the water drain pipe is smaller than 30 degrees.
Compared with the prior art, the utility model has the following beneficial effects:
1. the combined shaft structure of the drop spillway and the drain pipe overhaul gate of the pumped storage power station provided by the utility model has the advantages of simple arrangement: the water drain pipe access door well is combined with the falling flow spillway, three wells (towers) in the traditional arrangement mode are reduced to two, the mutual influence degree is reduced, the tower (well) site selection is more flexible, and the arrangement difficulty is remarkably reduced.
2. The utility model provides a shaft structure combining a drop spillway and a drain pipe overhaul gate of a pumped storage power station, which has the advantages of small engineering quantity: the number of water inlet towers (wells) is reduced from 3 to 2, the excavation amount of the earth and stone is obviously reduced, and the arrangement of traffic bridges, roads and the like is avoided in partial engineering.
3. The utility model provides a shaft structure combining a drop spillway and a drain pipe overhaul gate of a pumped storage power station, which is simple and convenient to construct: the situation that a drain pipe access door well is independently arranged is avoided, the elevation of a diversion tunnel water inlet tower is generally lower, a vertical shaft is generally excavated in surrounding rock, and the two construction methods are relatively simple and convenient; and the two are generally far apart, and construction cannot interfere with each other.
Drawings
Fig. 1 is a schematic plan view of the present utility model.
FIG. 2 is a cross-sectional view of the present utility model taken along the central axis of the drain service panel door slot.
Fig. 3 is a cross-sectional view taken along the direction a-a in fig. 2.
Fig. 4 is a cross-sectional view taken along the direction b-b in fig. 2.
FIG. 5 is a cross-sectional view of the utility model along the central axis of the falling spillway water-withdrawal tunnel.
In the above figures: circular pit shaft 1, entrance section 11, drop section 12, energy dissipation well section 13, square shaft 2, access panel door well 21, gate hoist 22, panel gate well vent 23, water return tunnel 3, vent 31, diversion tunnel 4, axis 41, plug 42, drain pipe 5, entrance and upper flat section 51, transition section 52, gate well section 53, lower curved section 54, gentle slope section 55, entrance weir 111, diversion pier 112.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.
As an embodiment of the utility model, referring to fig. 1-3, a combined shaft structure of a drop spillway and a drain pipe overhaul gate of a pumped storage power station is provided, and the combined shaft structure comprises a circular shaft 1 and a square shaft 2, wherein the circular shaft 1 is a drop spillway, and the center line of the circular shaft is positioned on the axis of a water-return tunnel 3 for convenient overhaul and other functions; the square vertical shaft 2 is a water discharge pipe overhaul gate vertical shaft, and is positioned on the axes of the diversion tunnel 4 and the water discharge pipe 5 in order to reduce the engineering quantity, ensure the smooth water flow and other functions; the top of the inlet weir 111 of the falling flood spillway is provided with a plurality of diversion piers 112, the tail curve of each diversion pier 112 is arc-shaped, the side edge of the square vertical shaft 2, which is close to the falling flood spillway, is also arc-shaped, and the square vertical shaft is used as a diversion pier of the falling flood spillway, so that the symmetry of the diversion piers of the falling flood spillway is ensured, and the water flow condition is better during flood discharge; meanwhile, arc transition is adopted, so that water flow can smoothly flow down through the falling flood spillway.
As a preferred embodiment of the present utility model, the drop spillway is vertically composed of three parts, namely a practical weir inlet section 11, a drop section 12 and an energy dissipation well section 13, wherein the bottom plate of the inlet section 11 adopts a practical weir curve.
As a preferred embodiment of the utility model, an access panel door well 21 is arranged in the drain pipe access door shaft, the access panel door well 21 is opened and closed by a gate hoist 22 at the top, and a panel door well vent hole 23 is arranged in the access panel door well 21.
As another preferred embodiment of the present utility model, the end of the drop section 12 of the drop spillway is connected to the water-return tunnel 3, the water-return tunnel 3 is built by the diversion tunnel 4, in order to make ventilation smooth in the opening and closing process, and the top of the inlet section 11 is provided with a ventilation port 31.
In some preferred embodiments, the axis 41 of the diversion tunnel 4 is provided with a turning, a plug 42 is arranged in front of the turning section, the turning rear section is coaxial with the water return tunnel 3, and the water drain pipe 5 is coaxial with the diversion tunnel 4.
In some preferred embodiments, the water drain pipe 5 is formed by five parts of an inlet and upper flat section 51, a gradual change section 52, a gate well section 53, a lower bending section 54 and a gentle slope section 55 along the axial direction of the diversion tunnel 4.
In some preferred embodiments, the rotation angle of the axis 41 of the diversion tunnel 4 and the water drain pipe 5 is less than 30 °, preferably 15 °, 12 °, 8 °, 23 °, 19 °, 29 °, etc. according to the topography conditions.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (7)
1. The combined vertical shaft structure of the drop spillway and the drain pipe overhaul gate of the pumped storage power station is characterized by comprising a circular shaft (1) and a square vertical shaft (2), wherein the circular shaft (1) is the drop spillway, and the central line of the circular shaft is positioned on the axis of the water return tunnel (3); the square vertical shaft (2) is a water drain pipe overhaul gate vertical shaft, and the center line of the square vertical shaft is positioned on the axes of the diversion tunnel (4) and the water drain pipe (5); the top of the inlet weir (111) of the falling flow spillway is provided with a plurality of diversion piers (112), the tail curves of the diversion piers (112) are arc-shaped, and the side edge of the square vertical shaft (2) close to the falling flow spillway is also arc-shaped and is used as a diversion pier of the falling flow spillway.
2. The pumped storage power station drop spillway and drain pipe access gate combined shaft structure of claim 1, wherein: the falling flow spillway is composed of three parts in the vertical direction, namely a practical weir inlet section (11), a falling flow section (12) and an energy dissipation well section (13), wherein a bottom plate of the inlet section (11) adopts a practical weir curve.
3. The pumped storage power station drop spillway and drain pipe access gate combined shaft structure of claim 1, wherein: an access panel door well (21) is arranged in the drain pipe access door vertical shaft, the access panel door well (21) is opened and closed by a gate hoist (22) at the top, and a panel gate well vent hole (23) is arranged in the access panel door well (21).
4. The pumped storage power station drop spillway and drain pipe access gate combined shaft structure of claim 2, wherein: the end of a falling section (12) of the falling spillway is connected with a water-return tunnel (3), the water-return tunnel (3) is reconstructed by a diversion tunnel (4), and a vent (31) is arranged at the top of the inlet section (11).
5. A pumped storage power station drop spillway and drain pipe access gate combined shaft structure according to any one of claims 1-3, characterized in that: the axis (41) of diversion tunnel (4) is equipped with the turn, is equipped with end cap (42) before the turn section, turn back end and the coaxial line of drainage tunnel (3), drain pipe (5) and diversion tunnel (4) coaxial line arrangement.
6. The pumped storage power station drop spillway and drain pipe access gate combined shaft structure of claim 1, wherein: the water discharge pipe (5) is composed of five parts, namely an inlet, an upper flat section (51), a gradual change section (52), a gate well section (53), a lower bending section (54) and a gentle slope section (55) along the axial direction of the diversion tunnel (4).
7. The pumped storage power station drop spillway and drain pipe access gate combined shaft structure of claim 5, wherein: the rotation angle of the axis (41) of the diversion tunnel (4) and the water drain pipe (5) is smaller than 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681593.3U CN220414163U (en) | 2023-06-29 | 2023-06-29 | Combined shaft structure of drop spillway and drain pipe overhaul gate of pumped storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681593.3U CN220414163U (en) | 2023-06-29 | 2023-06-29 | Combined shaft structure of drop spillway and drain pipe overhaul gate of pumped storage power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220414163U true CN220414163U (en) | 2024-01-30 |
Family
ID=89640563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321681593.3U Active CN220414163U (en) | 2023-06-29 | 2023-06-29 | Combined shaft structure of drop spillway and drain pipe overhaul gate of pumped storage power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220414163U (en) |
-
2023
- 2023-06-29 CN CN202321681593.3U patent/CN220414163U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203559454U (en) | Stratified water taking device for dam water inlet | |
| CN212077859U (en) | Tunnel structure capable of being used for diversion, flood discharge and emptying | |
| CN109267549A (en) | Diversion tunnel structure | |
| CN220414163U (en) | Combined shaft structure of drop spillway and drain pipe overhaul gate of pumped storage power station | |
| CN117513260A (en) | Drainage structure combining diversion tunnel, drainage tunnel and vertical shaft type flood drainage tunnel | |
| CN206752427U (en) | A kind of power station ground power house tailrace outlet structure and its power station | |
| CN116607482A (en) | Combined arrangement method for drop spillway and drain pipe overhaul gate shaft of pumped storage power station | |
| CN113174910B (en) | Double-shaft rotational flow energy dissipation flood discharge tunnel structural style | |
| CN114908718A (en) | Water-storage power station lower water reservoir arrangement structure utilizing existing reservoir | |
| CN212052875U (en) | Shaft flood discharge hole import structure | |
| CN209194485U (en) | Diversion tunnel structure | |
| CN220827778U (en) | Drainage structure combining diversion tunnel, drainage tunnel and vertical shaft type flood drainage tunnel | |
| CN205062764U (en) | Double-gate structure for high-water-head large-flow discharge tunnel | |
| CN220813728U (en) | Water pump energy storage power station diversion tunnel and drain pipe combined water inlet tower structure | |
| CN211312401U (en) | Ecological wall that hydraulic engineering construction used | |
| CN213571833U (en) | Multifunctional intensive import tower structure | |
| CN207130701U (en) | Compound water flowing out structure for Hydraulic and Hydro-Power Engineering | |
| CN111058422A (en) | Water blocking and draining structure | |
| CN210002358U (en) | novel emptying and mud discharging structure for water retaining dam | |
| CN118223455A (en) | Combined arrangement method for reservoir drainage building under pumped storage power station | |
| CN220099835U (en) | Drainage hole and spillway and diversion tunnel combined arrangement structure | |
| CN106958236A (en) | A kind of power station ground power house tailrace outlet structure and its power station | |
| CN219973103U (en) | Low-water-head landscape ecological weir capable of preventing silting and duckweed | |
| CN104863254B (en) | C-type Hydro-automatic gate | |
| CN218116360U (en) | Underground tail water system of hydropower station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |