CN207619915U - A kind of reservoir water at low temperature controlling device - Google Patents
A kind of reservoir water at low temperature controlling device Download PDFInfo
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- CN207619915U CN207619915U CN201721699091.8U CN201721699091U CN207619915U CN 207619915 U CN207619915 U CN 207619915U CN 201721699091 U CN201721699091 U CN 201721699091U CN 207619915 U CN207619915 U CN 207619915U
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- water
- reservoir
- blocking member
- low temperature
- controlling device
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Abstract
The utility model discloses a kind of reservoir water at low temperature controlling device, include and reservoir hydro plant intake upstream the earth lateral cable affixed, perpendicular to water (flow) direction；The transverse direction cable is connect with the fixed vertical Suo Dingduan in more tops；The top is fixed cable bottom end and is fixedly connected with water blocking member top；The water blocking member bottom end is located at water-bed top.The utility model stress is smaller, and can effectively improve large reservoir low-temperature discharge problem.
Description
Technical field
The utility model is related to hydraulic and hydroelectric engineering field, especially a kind of reservoir water at low temperature controlling device.
Background technology
Large reservoir has water temperature delamination phenomenon, when water intake of power plant mouth elevation is relatively low, can let out low temperature under spring, summer
Water causes a series of serious ecological problems in downstream.For this phenomenon, one of existing engineering measure is before intake
Fang Xiujian baffle device for water blocks reservoir underlying low temperature water, reservoir surface high-temperature water is only allowed to enter hydro plant intake.Baffle device for water is repaiied
It is higher by hydro plant intake side water temperature after building, and it is relatively low by reservoir area side water temperature.According to temperature-density function of water, water
Wen Yuegao, water density are lower.I.e. baffle device for water overweights the water body by hydro plant intake side by the weight of reservoir area side water body, by
This can be such that baffle device for water bears by the different heavy caused huge hydrostatic pressure of fluid.According to existing program, to resist the hydrostatic pressure,
Baffle device for water has to use high-strength material, increases force structure, even with complicated stress scheme so that project cost
It is high.
Invention content
Technical problem to be solved in the utility model is, in view of the shortcomings of the prior art, providing a kind of simple in structure, cost
It is low, and can effectively reduce the reservoir water at low temperature controlling device of curtain wall entirety stress.
In order to solve the above technical problems, technical solution used by the utility model is：A kind of reservoir low temperature water harnessing dress
It sets, includes and reservoir hydro plant intake upstream the earth lateral cable affixed, perpendicular to water (flow) direction；It is described transverse direction cable with it is more
Fixed vertical Suo Dingduan connections at the top of root；The top is fixed vertical rope bottom end and is fixedly connected with water blocking member top.
The water blocking member（It is required that the material of the component is waterproof or low permeable, and the pressure of water can be sustained）Bottom end
Above the bottom.
The water blocking member bottom end is fixed vertical rope with more root bottom parts and is fixedly connected；More root bottom parts, which are fixed, indulges rope and reservoir
Hydro plant intake upstream the earth is affixed.So that water harnessing apparatus structure is more firm.
The water blocking member two sides with gravity anchor chain link.Water blocking member is fixed on bank slope side by gravity anchor chain.
Gravity anchor chain itself is flexible, and can adapt to irregular bank slope automatically.
The water blocking member top is located at underwater 5m ~ 20m.Reservoir has water temperature delamination phenomenon, and surface temperature is high, bottom water temperature
It is low.In order to block bottom water at low temperature, only flow is allowed to go over from surface layer.5m ~ 20m is exactly the overcurrent height of superficial water.
Water height is crossed in the water blocking member bottom end（I.e. bottom, which is fixed, indulges Suo Dingduan to water-bed height）With the retaining section
The ratio between part height is 1：500~1：15.The ratio determines the water height excessively of water blocking member bottom end, and value is bigger, crosses water height and gets over
Greatly, it is more to leak past water.It is set as 1：500~1：15 can ensure good engineering effort.
The water blocking member is apart from reservoir hydro plant intake upstream 100m ~ 2000m.While ensureing engineering effort,
Prevent the accident of water blocking curtain wall from jeopardizing dam safety.
The shape and reservoir electricity for indulging that rope bottom end line is constituted are fixed in the transverse direction cable, two gravity anchor chains, bottom
Intake upstream curtain wall of standing arranges the terrain match of section.
Compared with prior art, it is had the beneficial effect that possessed by the utility model：The utility model is simple in structure, can protect
Under the premise of demonstrate,proving engineering effort, curtain wall entirety stress is reduced by 2 ~ 3 times as far as possible, and without using high-strength material, reduce
Project cost.
Description of the drawings
Fig. 1 is the utility model embodiment structural schematic diagram.
Specific implementation mode
The setting of present apparatus bottom it is certain cross water height, the water at low temperature for allowing a small amount of density larger enters from bottom by fetching water
Mouthful side, for balance since baffle device for water both sides water body varies in weight the hydrostatic pressure brought, reaching reduces baffle device for water stress
Purpose.Low temperature water density is larger, enters behind the intake side from baffle device for water bottom, be concentrated in hydro plant intake high level with
Lower region, only micro water at low temperature enter hydro plant intake, are influenced on the water temperature improvement of water retaining structure smaller.
Since stress reduces, it can largely simplify force structure.The present apparatus is fixed by upper lateral cable, top
Vertical rope, water blocking member, side gravity anchor chain and bottom, which are fixed, indulges rope component composition.The present apparatus is set on reservoir hydro plant intake
100m ~ 2000m is swum, top transverse direction cable 2 and the connection type of the earth 1 are anchor, and direction is perpendicular to water (flow) direction.Top is fixed
The connection type of vertical rope 3 and upper lateral cable cable 2 is binding.Vertical rope 3 is fixed at top and the connection type of water blocking member 4 is
Binding or sewing.4 upper end of water blocking member is located at underwater 5m ~ 20m.Gravity anchor chain 5, connection type is arranged in 4 both sides of water blocking member
For sewing.There is certain extended distance in 4 bottom end of water blocking member away from the bottom, and it is 1 that the ratio between water height and water blocking member height are crossed in bottom：
500~1:15.4 bottom end of water blocking member is fixed vertical rope 6 with bottom and is connect, and connection type is sewing.Bottom, which is fixed, indulges rope 6 and the earth 1
Connection, connection type are gravity anchor or earth anchor.
Below by taking certain domestic large reservoir as an example, the utility model is further elaborated in conjunction with attached drawing.
Certain large reservoir normal pool level depth of water 240m has many years regulation performance.The eservoir diversion electricity generation system is intake
Mouth bottom plate is located at normal pool level or less 67m.After reservoir filling, reservoir area shows apparent thermal stratification phenomenon, spring and summer season
The temperature that sluices under power plant be substantially less than build it is natural before library in the case of water temperature.It, need to be in hydro plant intake to promote the temperature that sluices under the reservoir
Baffle device for water is built at the 200m of upstream, blocks underlying low temperature water.
The typical moon that August is Force Calculation is chosen, which is 20.9 DEG C in the monthly lower sluicing temperature of August, power station power generation stream
Measure 870m3/s.Water height 20m, the high 140m of water blocking member are crossed in baffle device for water top.According to numerical simulation calculation, if baffle device for water
Using traditional base closure structures form, then the pressure that the baffle device for water water blocking member is born reaches as high as 2291pa, always by
Power 3126t.
It is constant that the conditions such as water height, generating flow are crossed on top, and design scheme is revised as the present apparatus, bottom cross water height with
The ratio between water blocking member height is 1:278, i.e., it is 0.5m that water height is crossed in bottom.Calculate the highest pressure born of the baffle device for water only
For 376pa, total stress is 1303t.Compared with traditional base closure structures form, pressure reduces 83.6%, and total stress reduces
58.3%.The lower sluicing temperature of the present apparatus is 23.0 DEG C, and water temperature improvement reduced by only 1.1 DEG C, still meets the life of dam downstream
Demand of the state system to water temperature.
To sum up, compared with the baffle device for water of traditional base closure structures form, present apparatus stress is lower, and water temperature still may be used
Meet the needs of dam downstream ecology system is to water temperature.
Claims (8)
1. a kind of reservoir water at low temperature controlling device, which is characterized in that including with reservoir hydro plant intake upstream the earth（1）Affixed,
Perpendicular to the lateral cable of water (flow) direction（2）；The transverse direction cable（2）With the fixed vertical rope in more tops（3）Top connects；It is described
Top, which is fixed, indulges rope（3）Bottom end and water blocking member（4）Top is fixedly connected.
2. reservoir water at low temperature controlling device according to claim 1, which is characterized in that the water blocking member（4）Bottom end with
More root bottom parts, which are fixed, indulges rope（6）It is fixedly connected；More root bottom parts, which are fixed, indulges rope（6）It is solid with reservoir hydro plant intake upper water bottom
It connects.
3. reservoir water at low temperature controlling device according to claim 2, which is characterized in that the transverse direction cable（2）, two pieces weights
Power anchor chain（5）, bottom fix indulge rope（6）The shape that bottom end line is constituted and reservoir hydro plant intake upstream curtain wall arrangement are disconnected
The terrain match in face.
4. reservoir water at low temperature controlling device according to claim 1, which is characterized in that the water blocking member（4）Two sides
With gravity anchor chain（5）Connection.
5. reservoir water at low temperature controlling device according to claim 1, which is characterized in that the water blocking member（4）Top position
In underwater 5m ~ 20m.
6. reservoir water at low temperature controlling device according to claim 1, which is characterized in that the water blocking member（4）Apart from institute
State reservoir hydro plant intake upstream 100m ~ 2000m.
7. the reservoir water at low temperature controlling device according to one of claim 1~6, which is characterized in that the water blocking member（4）
Bottom end is located at water-bed top.
8. reservoir water at low temperature controlling device according to claim 7, which is characterized in that the water blocking member（4）Bottom end mistake
Water height and the water blocking member（4）The ratio between height is 1：500~1：15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721699091.8U CN207619915U (en) | 2017-12-08 | 2017-12-08 | A kind of reservoir water at low temperature controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721699091.8U CN207619915U (en) | 2017-12-08 | 2017-12-08 | A kind of reservoir water at low temperature controlling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207619915U true CN207619915U (en) | 2018-07-17 |
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| CN201721699091.8U Active CN207619915U (en) | 2017-12-08 | 2017-12-08 | A kind of reservoir water at low temperature controlling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905177A (en) * | 2017-12-08 | 2018-04-13 | 中国电建集团中南勘测设计研究院有限公司 | A kind of reservoir water at low temperature controlling device |
-
2017
- 2017-12-08 CN CN201721699091.8U patent/CN207619915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905177A (en) * | 2017-12-08 | 2018-04-13 | 中国电建集团中南勘测设计研究院有限公司 | A kind of reservoir water at low temperature controlling device |
| CN107905177B (en) * | 2017-12-08 | 2023-09-26 | 中国电建集团中南勘测设计研究院有限公司 | Reservoir low-temperature water treatment device |
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