CN202500121U - Device for controlling ecological flow - Google Patents
Device for controlling ecological flow Download PDFInfo
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- CN202500121U CN202500121U CN 201220135057 CN201220135057U CN202500121U CN 202500121 U CN202500121 U CN 202500121U CN 201220135057 CN201220135057 CN 201220135057 CN 201220135057 U CN201220135057 U CN 201220135057U CN 202500121 U CN202500121 U CN 202500121U
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- ecological flow
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- flowing
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 3
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a device for controlling an ecological flow. The device comprises a dam, wherein a flow guide section, a flood season flowing section and a drainage section are arranged from bottom to top along the vertical direction of the dam; the flow guide section is provided with two flow guide holes with different heights and ecological flow holes, and bottom sills of the ecological flow holes are higher than the normal flowing water level in the dry season; the flood season flowing section is provided with a group of flowing holes with different heights; the drainage section is provided with drainage holes; blocking gates are arranged on both the flow guide holes and the flowing holes; the ecological flow holes comprise embedded steel tubes; and hydraulic control butterfly valves are arranged in the embedded steel tubes; and connecting flanges are arranged at the ports of the steel tubes embedded at the rear end of the hydraulic butterfly valve. According to the device for controlling the ecological flow, the ecological flow holes are arranged on the lower layer of the dam body for reducing the number of the arranged flowing hole layers and simplifying the blocking process, and therefore the blocking period is reduced, and the engineering investment is saved. Provisional tapered valves are added at the backs of the current hydraulic butterfly valves in the ecological flow holes; and the mode in combination of the hydraulic butterfly valves and the tapered valves is adopted to meet the requirement on the control under a high water head.
Description
Technical field
the utility model relates to a kind of device of controlling ecological flow, belongs to Hydraulic and Hydro-Power Engineering structure and diversion technology field.
Background technology
The dam in
power station is constructed after the completion, and during following lock retaining, if no ecological flow metering-orifice is freeed the attitude flow downstream, downstream will be in disconnection state, can downstream ecology be damaged, and some rare species possibly become extinct.Consider based on environmental protection, the ecological flow metering-orifice need be set, when constructing dam to satisfy the needed ecological flow in downstream.Discharging ecological flow through the ecological flow metering-orifice is a short-term requirement, belongs to temporary building, generally is no more than 1 year.Behind the permanent drainage gallery overcurrent after the normal power generation of power station or above the dam, can satisfy the downstream ecology traffic requirement, the ecological flow metering-orifice also just loses the meaning of existence.
at present in mode of control ecological flow, the one, multilayer ecological flow metering-orifice is set, satisfy the ecological flow requirement through the upper strata overcurrent after, the ecological flow metering-orifice of the lower floor of shutoff successively is to reduce the operating gate head.There is the long and bigger problem of investment of shutoff program complicacy, cycle in this mode.The 2nd, in dam body lower floor the ecological flow metering-orifice is set, through being located at the hydraulic butterfly valve control ecological flow in the hole.Hydraulic butterfly valve low price, its price have only same diameter cone valve half be less than.Operated by rotary motion is blocked the current protection hydraulic turbine in hydraulic turbine front when hydraulic turbine fault, operation condition is generally standard-sized sheet or full cut-off two states, and generally about 10m/s, it is poor to regulate flow performance for the flow velocity of adaptation.Along with the increase of pondage, head is high more, and flow velocity is fast more, may cause hydraulic butterfly valve to close.That is that all right is ripe for control technology, has certain potential safety hazard.
Summary of the invention
The purpose of
the utility model is, a kind of device of controlling ecological flow is provided.Safety with ecological flow control appliance and dam body under the solution high water head situation.To overcome the deficiency of prior art.
The technical scheme of the utility model:
a kind of device of controlling ecological flow comprises dam, is respectively equipped with diversion section, flood season overcurrent section and earial drainage section from the bottom to top along the vertical direction of dam; Diversion section is provided with Diversion Tunnel and ecological flow metering-orifice, and the end bank of ecological flow metering-orifice is higher than the end bank of Diversion Tunnel; Flood season, the overcurrent section was provided with one group of overcurrent hole that height is different, and the earial drainage section is provided with the earial drainage hole; Be equipped with the shutoff gate on Diversion Tunnel and the overcurrent hole; The ecological flow metering-orifice comprises embedded steel tube, is provided with hydraulic butterfly valve in the embedded steel tube.
In
aforementioned means, the embedded steel tube mouth of pipe of said hydraulic butterfly valve rear end is provided with adpting flange.
In
aforementioned means, the end bank height of said ecological flow metering-orifice is higher than normal overcurrent water level in dry season.
compared with prior art, the utility model is employed in the technical scheme that dam body lower floor is provided with the ecological flow metering-orifice.Can reduce the overcurrent hole and the number of plies is set, simplify the shutoff program, shorten the shutoff cycle, practice thrift construction investment.The utility model existing hydraulic butterfly valve in the ecological flow metering-orifice is set up an interim cone valve at the back, adopts hydraulic butterfly valve and cone valve compound mode, adapts to head and surpasses 100 grades, even can reach 274m.Under dam, during the lock retaining, when head is low, can the cone valve standard-sized sheet be controlled ecological flow with hydraulic butterfly valve.After head reach a certain height,, control ecological flow with cone valve with the hydraulic butterfly valve standard-sized sheet.When closing, can close cone valve earlier, close hydraulic butterfly valve again, have the dual fail-safe effect, safe and reliable, can eliminate safe hidden trouble.Cone valve is located at the hydraulic butterfly valve back, can regulates making hydraulic butterfly valve keep the advantage of constant low flow velocity through cone valve; The cone valve end adopts the flange connection to be convenient to install and dismounting; The bank height has satisfied normal construction needs in dry season a little more than normal overcurrent water level of withered phase at the bottom of the ecological flow metering-orifice in the utility model, also help shortening from behind the lock shutoff Diversion Tunnel under the shutoff gate to time of overcurrent hole and earial drainage hole overcurrent; When after the normal power generation of power station or after the permanent drainage gallery above the dam begins overcurrent, can satisfy the downstream ecology traffic requirement, the ecological flow metering-orifice also just loses the meaning of existence.At this moment the ecological flow metering-orifice is ineffective, can close cone valve earlier, closes hydraulic butterfly valve again, reaches 300m because the hydraulic butterfly valve static energy adapts to head, after hydraulic butterfly valve is closed, can remove the more expensive cone valve of price, saves construction investment greatly; After removing cone valve, hydraulic butterfly valve is stayed in the ecological flow metering-orifice, can play plugging action, and is with concrete that the Diversion Tunnel shutoff is tight simultaneously, has the dual fail-safe effect of putting things right once and for all.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of ecological flow metering-orifice;
Fig. 3 is a shutoff gate structures sketch map;
Fig. 4 is the sketch map that cone valve is installed in the ecological flow metering-orifice.
Being labeled as in
accompanying drawing: 1-dam, 2-diversion section, 3-overcurrent in flood season section, 4-earial drainage section, 5-Diversion Tunnel, 6-ecological flow metering-orifice, 7-overcurrent hole, 8-earial drainage hole, 9-shutoff gate, 10-embedded steel tube, 11-hydraulic butterfly valve, 12-adpting flange, 13-cone valve.
The specific embodiment
are done further to specify to the utility model below in conjunction with accompanying drawing and embodiment, but not as any restriction to the utility model.
embodiment.A kind of device of controlling ecological flow, as shown in Figure 1, comprise dam 1, be respectively equipped with diversion section 2, flood season overcurrent section 3 and earial drainage section 4 from the bottom to top along the vertical direction of dam 1; Diversion section 2 is provided with two highly different Diversion Tunnels 5 and ecological flow metering-orifice 6; The end bank height of ecological flow metering-orifice 6 is higher than normal overcurrent water level in dry season.Flood season, the overcurrent section 3 was provided with one group of overcurrent hole 7 that height is different, and earial drainage section 4 is provided with earial drainage hole 8; Be equipped with shutoff gate 9 (see figure 2)s on Diversion Tunnel 5 and the overcurrent hole 7; Ecological flow metering-orifice 6 comprises embedded steel tube 10, is provided with hydraulic butterfly valve 11 in the embedded steel tube 10.Embedded steel tube 10 mouths of pipe of hydraulic butterfly valve 11 rear ends are provided with adpting flange 12 (see figure 3)s.
The control procedure of
the utility model is as shown in Figure 4.A cone valve 13 is installed on adpting flange 12 earlier; Be in full-gear at hydraulic butterfly valve 11, the flow velocity through cone valve 13 is regulated through hydraulic butterfly valve 11 makes through the constant flow rate of hydraulic butterfly valve 11 and in the flow rates of its normal running; After the inflow-rate of water turbine of treating the earial drainage hole satisfies the downstream ecology flow, close cone valve 13 earlier, close hydraulic butterfly valve 11 again, remove cone valve 13 then, with concrete that the outlet shutoff of embedded steel tube 10 is tight at last.
The operating principle of the utility model
like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, under dam during the lock retaining, behind 9 times lock shutoff of shutoff gate Diversion Tunnel 5; Head rises gradually; When head is low, can cone valve 13 standard-sized sheets be controlled ecological flow with hydraulic butterfly valve 11.After head reach a certain height,, control ecological flow with cone valve 13 with hydraulic butterfly valve 11 standard-sized sheets.After earial drainage hole 8 inflow-rate of water turbines that are positioned at the dam topmost satisfied the downstream ecology flow, ecological flow metering-orifice 6 was accomplished mission, loses the meaning of existence; At this moment close cone valve 13 earlier; Close hydraulic butterfly valve 11 again, remove cone valve 13 then, with concrete that the 6 permanent shutoff of ecological flow metering-orifice are tight at last.
Claims (3)
1. a device of controlling ecological flow comprises dam (1), it is characterized in that: the vertical direction along dam (1) is respectively equipped with diversion section (2), overcurrent section in flood season (3) and earial drainage section (4) from the bottom to top; Diversion section (2) is provided with Diversion Tunnel (5) and ecological flow metering-orifice (6), and the end bank of ecological flow metering-orifice (6) is higher than the end bank of Diversion Tunnel (5); Overcurrent section in flood season (3) is provided with one group of overcurrent hole (7) that height is different, and earial drainage section (4) is provided with earial drainage hole (8); Be equipped with shutoff gate (9) on Diversion Tunnel (5) and overcurrent hole (7); Ecological flow metering-orifice (6) comprises embedded steel tube (10), is provided with hydraulic butterfly valve (11) in the embedded steel tube (10).
2. according to the said device of claim 1, it is characterized in that: embedded steel tube (10) mouth of pipe of said hydraulic butterfly valve (11) rear end is provided with adpting flange (12).
3. according to the said device of claim 2, it is characterized in that: the end bank height of said ecological flow metering-orifice (6) is higher than normal overcurrent water level in dry season.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135057 CN202500121U (en) | 2012-04-01 | 2012-04-01 | Device for controlling ecological flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135057 CN202500121U (en) | 2012-04-01 | 2012-04-01 | Device for controlling ecological flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500121U true CN202500121U (en) | 2012-10-24 |
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ID=47036737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220135057 Expired - Lifetime CN202500121U (en) | 2012-04-01 | 2012-04-01 | Device for controlling ecological flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500121U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720168A (en) * | 2012-04-01 | 2012-10-10 | 中国水电顾问集团贵阳勘测设计研究院 | Apparatus and method for controlling ecological flow |
| CN104895022A (en) * | 2015-05-26 | 2015-09-09 | 中国电建集团中南勘测设计研究院有限公司 | Shaft structure communicated with release structures and flood discharge method |
| CN105155488A (en) * | 2015-07-03 | 2015-12-16 | 中国电建集团贵阳勘测设计研究院有限公司 | Arrangement mode and structure of small ecological flow unit of hydropower station underground powerhouse |
| CN105332364A (en) * | 2015-11-24 | 2016-02-17 | 中国电建集团成都勘测设计研究院有限公司 | High arch dam construction diversion tunnel structure and design method thereof |
-
2012
- 2012-04-01 CN CN 201220135057 patent/CN202500121U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720168A (en) * | 2012-04-01 | 2012-10-10 | 中国水电顾问集团贵阳勘测设计研究院 | Apparatus and method for controlling ecological flow |
| CN102720168B (en) * | 2012-04-01 | 2014-11-26 | 中国电建集团贵阳勘测设计研究院有限公司 | Apparatus and method for controlling ecological flow |
| CN104895022A (en) * | 2015-05-26 | 2015-09-09 | 中国电建集团中南勘测设计研究院有限公司 | Shaft structure communicated with release structures and flood discharge method |
| CN104895022B (en) * | 2015-05-26 | 2016-09-07 | 中国电建集团中南勘测设计研究院有限公司 | A kind of shaft structure connecting outlet structure escape works and flood discharging method |
| CN105155488A (en) * | 2015-07-03 | 2015-12-16 | 中国电建集团贵阳勘测设计研究院有限公司 | Arrangement mode and structure of small ecological flow unit of hydropower station underground powerhouse |
| CN105332364A (en) * | 2015-11-24 | 2016-02-17 | 中国电建集团成都勘测设计研究院有限公司 | High arch dam construction diversion tunnel structure and design method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HYDROCHINA GUIYANG ENGINEERING CORPORATION, LTD. Free format text: FORMER NAME: GUIYANG PROSPECTION + DESIGN INST, CHINA HYDRAULIC POWER CONSULTARY GROUP Owner name: CHINA POWER GROUP GUIYANG INVESTIGATION DESIGN + R Free format text: FORMER NAME: HYDROCHINA GUIYANG ENGINEERING CORPORATION, LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Patentee after: POWERCHINA GUIYANG ENGINEERING Corp.,Ltd. Address before: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Patentee before: HydroChina Guiyang Engineering Corp. Address after: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Patentee after: POWERCHINA GUIYANG ENGINEERING CORPORATION LIMITED Address before: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Patentee before: POWERCHINA GUIYANG ENGINEERING Corp.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
|
| CX01 | Expiry of patent term |