CN205604194U - Ecological flow that high dam slows down low warm water structure of temporarily releasing - Google Patents
Ecological flow that high dam slows down low warm water structure of temporarily releasing Download PDFInfo
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- CN205604194U CN205604194U CN201620426201.2U CN201620426201U CN205604194U CN 205604194 U CN205604194 U CN 205604194U CN 201620426201 U CN201620426201 U CN 201620426201U CN 205604194 U CN205604194 U CN 205604194U
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Abstract
The utility model relates to an ecological flow that high dam slows down low warm water structure of temporarily releasing of the storehouse water that temperature and natural river state be close is got to water conservancy water and electricity trade, especially a make full use of laminated water taking's advantage. Ecological flow that high dam slows down low warm water structure of temporarily releasing includes the water intaking structure of releasing, be provided with first gate and the second gate that can distinguish free switch in the water intaking structure of releasing, wherein first gate sets up in the water intaking structure bottom of releasing, the second gate sets up to be hugged closely with first gate top in first gate top and second gate bottom, release the water intaking from a supreme water level index mark, the 2nd water level index mark and the 3rd water level index mark of being provided with respectively down in the structure, highly being higher than first gate and being less than the second gate an of water level index mark wherein, the 2nd water level index mark highly is higher than second gate height. The utility model discloses be particularly useful for among ecological flow was released temporarily among the hydraulic and hydroelectric engineering the engineering.
Description
Technical field
This utility model relates to water conservancy and hydropower industry, and a kind of high dam slows down the interim discharge structure of ecological flow of water at low temperature.
Background technology
Along with country's demand to water power clean energy resource, build substantial amounts of high dam, affected by factors such as the cutout of water-retention phase or long tail water,
Section, dam downstream part will appear from short-term or the impact of long-term cutout.According to State Environmental Protection Administration's associated documents requirement, impacted
Need to release corresponding ecological flow in section, and ecological flow should meet maintenance aquatic ecosystem and stablize institute's water requirement, maintenance river
The minimum dilution and purification water yield, industrial and agricultural production and the domestic consumption of quality of water environment, view (containing shipping) water consumption.Class at present
Use the pattern that ecological generating set or corresponding discharge orifice are set to release ecological flow like engineering.
In practice, there are following FAQs: one, the situation that section, dash dam downstream part stops for a long time, typically
Arrange ecological generating set to release ecological flow in dam downstream, owing to this water body head is higher, and need to release for a long time, therefore
In conjunction with power energy economy analysis, the unit that installation is less can be set, both met releasing of ecological flow, and possessed again certain economy
Effect.If but the situation of section, dam downstream part short-term cutout, ecological unit is set and will cause investing too high, be unsatisfactory for economy
Evaluate requirement.Two, when tail water building is close to dash dam, can use and let out ecological flow under diversion and power building normal power generation
Amount.For ensureing that the lower temperature that sluices uses stratified pumping pattern close to natural river state, powerplant intakes.But affected by operation of power networks,
Being likely to occur electrical network and abandon lotus, unit short-term can not generate electricity, it is impossible to transfers ecological flow by diversion and power building.Three, dam
After water-retention completes, being affected by the big storehouse of high dam, in reservoir, water temperature vertical distribution is different, and nearly dam outlet structure escape works are generally bank tunnel
Hole or flood relief through dam aperture, limited by each drainage gallery input elevation, and the water temperature let out under certain period is less than natural river shape
State, easily under the influence of swimming fish class, crops and ecosystem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of advantage making full use of stratified pumping, gets water temperature with natural
The high dam of the storehouse water that river state is close slows down the interim discharge structure of ecological flow of water at low temperature.
This utility model solves the technical scheme is that high dam of its technical problem to be slowed down the ecological flow of water at low temperature and releases temporarily
Structure, including water intaking structure of releasing, described in release water intaking structure in be provided with the first gate and the second lock that can distinguish free switch
Door, wherein the first gate locating is in water intaking structural base of releasing, and described second gate locating is above the first gate and the second gate
Bottom is close to the first gate top；The first level scale, the second water it is respectively arranged with from bottom to up in described water intaking structure of releasing
Position scale and the 3rd level scale, wherein the height of the first level scale is higher than the first gate and less than the second gate, the second water level
The height of scale is higher than the second gate height.
Further, including mouth of a river elevation scale, described mouth of a river elevation scale is less than the height of the first gate.
Further, the downstream of water intaking structure of releasing described in is provided with pressure pipeline.
Further, the downstream end of described pressure pipeline is provided with energy dissipation control device.
The beneficial effects of the utility model are: when actually used, and when operating water level is less than the first level scale, power station intakes
Mouth is without gate；When operating water level is between the first level scale and the second level scale, powerplant intakes puts down the first gate,
Thus allow the water body above more than the first gate height be passed through；When operating water level is carved between the second level scale and the 3rd water level
When spending, powerplant intakes puts down the second gate, thus allows the water body above more than the second gate height be passed through.So far,
This utility model achieves accurately and technique effect to stratified pumping easily, let out under sound assurance ecological flow water temperature with
Natural river state is close, meets downstream Fish, crops and ecosystem needs.This utility model is particularly suited for water conservancy water
Among the engineering that in electrical engineering, ecological flow is released temporarily.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Figure is labeled as: pressure pipeline the 1, first gate the 2, second gate 3, release water intaking structure 4, energy dissipation control device 5,
Mouth of a river elevation scale z0, the first level scale z1, the second level scale z2, the 3rd level scale z3, operating water level z4.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further illustrated.
High dam as shown in Figure 1 slows down the interim discharge structure of ecological flow of water at low temperature, including release water intaking structure 4, described in let out
Being provided with the first gate 2 and the second gate 3 that can distinguish free switch in taking water-bound 4, wherein the first gate 2 is arranged at
Bottom water intaking structure 4 of releasing, described second gate 3 be arranged at above the first gate 2 and bottom the second gate 3 with the first gate
2 tops are close to；The first level scale z1, the second level scale z2 it is respectively arranged with from bottom to up in described water intaking structure 4 of releasing
With the 3rd level scale z3, wherein the height of the first level scale z1 is higher than the first gate 2 and less than the second gate 3, the second water
The height of position scale z2 is higher than the second gate 3 height.
Structure of the present utility model design very ingenious, in that context it may be convenient to realize the needs of stratified pumping.General, the mouth of a river is high
Cheng Kedu z0 is less than the height of the first gate 2, and when operating water level z4 is less than the first level scale z1, water inlet is without gate；
When operating water level z4 is between the first level scale z1 and the second level scale z2, as shown in Figure 1, powerplant intakes
Put down the first gate 2, owing to the height of the first level scale z1 is higher than the first gate 2 and less than the second gate 3, so permissible
Realize allowing and pass through more than the water body of the first gate 2 height；When operating water level z4 carves between the second level scale z2 and the 3rd water level
Time between degree z3, then select to put down the first gate 2 and the second gate 3 simultaneously, as shown in Figure 1, the most then can realize allowing
Pass through more than the water body of the second gate 3 height.Owing to the second gate 3 is arranged at above the first gate 2 and bottom the second gate 3
It is close to the first gate 2 top, therefore, when the first gate 2 and the second gate 3 simultaneously close off, the height of water level of current limliting
It is the first gate 2 and height sum of the second gate 3.
Owing to being affected by effect high water head, in order to ensure the reliable and stable of downstream stress condition, preferably described in release water intaking structure
The downstream of 4 is provided with pressure pipeline 1.Meanwhile, it is also possible to select the downstream end at described pressure pipeline 1 that energy dissipating is set
Controlling device 5, the water reducing downstream can the excessive and damaging influence to surrounding that produces.
This utility model takes full advantage of the advantage of stratified pumping, can get the storehouse water that water temperature is close with natural river state.In reality
When border uses, even if diversion system occurs abnormal, ecological flow remains to be played a role by independent intake.Additionally, temporarily
Discharge structure build is simple, is provided without ecological generating set, can save construction investment, and described interim discharge structure uses manometer tube
Channel type, flexible arrangement.
Claims (4)
1. high dam slows down the interim discharge structure of ecological flow of water at low temperature, it is characterised in that: include water intaking structure (4) of releasing, institute
The first gate (2) and the second gate (3) that can distinguish free switch it is provided with in stating water intaking structure (4) of releasing, wherein first
Gate (2) be arranged at release water intaking structure (4) bottom, described second gate (3) be arranged at the first gate (2) top and
Second gate (3) bottom is close to the first gate (2) top；It is respectively provided with from bottom to up in described water intaking structure (4) of releasing
There are the first level scale (z1), the second level scale (z2) and the 3rd level scale (z3), wherein the first level scale (z1)
Height higher than the first gate (2) and less than the second gate (3), the height of the second level scale (z2) is higher than the second gate (3)
Highly.
2. high dam as claimed in claim 1 slows down the interim discharge structure of ecological flow of water at low temperature, it is characterised in that: include water
Mouth elevation scale (z0), described mouth of a river elevation scale (z0) is less than the height of the first gate (2).
3. high dam as claimed in claim 1 or 2 slows down the interim discharge structure of ecological flow of water at low temperature, it is characterised in that: institute
The downstream stating water intaking structure (4) of releasing is provided with pressure pipeline (1).
4. high dam as claimed in claim 3 slows down the interim discharge structure of ecological flow of water at low temperature, it is characterised in that: described pressure
The downstream end of hydraulic piping (1) is provided with energy dissipation control device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620426201.2U CN205604194U (en) | 2016-05-11 | 2016-05-11 | Ecological flow that high dam slows down low warm water structure of temporarily releasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620426201.2U CN205604194U (en) | 2016-05-11 | 2016-05-11 | Ecological flow that high dam slows down low warm water structure of temporarily releasing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205604194U true CN205604194U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620426201.2U Active CN205604194U (en) | 2016-05-11 | 2016-05-11 | Ecological flow that high dam slows down low warm water structure of temporarily releasing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804027A (en) * | 2016-05-11 | 2016-07-27 | 中国电建集团成都勘测设计研究院有限公司 | Temporary discharge structure reducing ecological flow of low-temperature water for high dam |
-
2016
- 2016-05-11 CN CN201620426201.2U patent/CN205604194U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804027A (en) * | 2016-05-11 | 2016-07-27 | 中国电建集团成都勘测设计研究院有限公司 | Temporary discharge structure reducing ecological flow of low-temperature water for high dam |
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| GR01 | Patent grant |