CN104988886A - Water power revolving door type fishway - Google Patents
Water power revolving door type fishway Download PDFInfo
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- CN104988886A CN104988886A CN201510416169.XA CN201510416169A CN104988886A CN 104988886 A CN104988886 A CN 104988886A CN 201510416169 A CN201510416169 A CN 201510416169A CN 104988886 A CN104988886 A CN 104988886A
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- revolving door
- water
- fish
- dam
- water wheels
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/60—Ecological corridors or buffer zones
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Abstract
The invention provides a water power revolving door type fishway. The water power revolving door type fishway mainly comprises a fish passing tunnel, a round chamber, a revolving door and a water wheel. The water passing tunnel is arranged in a dam. The round chamber is communicated with the downstream end of the fish passing tunnel. The revolving door is placed in the round chamber. The solid wall of the side face of the revolving door forms an arc with a 270-degree central angle on the plane. Internal space of the round chamber is alternately communicated with the fish passing tunnel and downstream water of the dam in a revolving state, and the purposes of fish passing and water retaining are achieved. The revolving door is provided with a large number of small holes to control the flow speed of water flow in the fishway. A rotary shaft of the water wheel is connected with a rotary shaft of the revolving door through a reduction gear, so that power is supplied to revolving of the revolving door. The water power revolving door type fishway is high in adaptability to dam height and good in coordination with reservoir incoming water and hydro-junction operation.
Description
Technical field
The invention belongs to the fish pass structure technical field in Hydraulic and Hydro-Power Engineering, be specifically related to a kind of hydraulic rotary gate-type fish pass.
Background technology
Fish pass is a kind of fish pass structure that communication fish migration passage is arranged at lock, dam or natural obstacle place.The dividing plate arranging some in fish pass is divided into a series of pond be interconnected fish pass tank, is some levels by water levels of upstream and downstream difference, utilizes energy dissipating to slow down and control the measure such as water flow to create and be suitable for flow velocity that fish trace back and fluidised form.Traditional fish pass of this form due to its relative maturity that possesses skills, can cross continuously fish, operating cost low, be easy to the features such as management, be widely used in current low water head dam at home and abroad, and for high water head dam, need the fish pass grown flow velocity could be reduced to suitable scope very much, need the physical efficiency consuming fish larger, therefore, the sizable mechanical fish pass structure of the operating cost such as fish lock, fish lift is usually selected at height of dam higher than the engineering of 40m.China at present building, built high dam is numerous, the design of high dam engineering fish pass does not have ready-made experience to follow substantially.In addition, China's fish pass is crossed fish object and is generally precious fish, cyprinid fish and shrimp crab seedling, generally have fish migratory by force for salmon, trout etc. relative to external fish pass, the domestic general individual of fish object is excessively less, migration ability is more weak, needs the current of more low speed.Therefore, promote and promote that the progress of high dam fish pass engineering is the vital task faced by China hydropower industry aquatic ecological protection worker.The design of current nearly all fish pass is all adopt channel flow form, and reduce water velocity based on energy dissipating principle and to trace back trip to realize fish, gate dam water levels of upstream and downstream difference is larger, then flow velocity is more difficult to reduction.In addition, be subject to the impact of upper pond level and flow when fish pass runs, flow velocity, fluidised form are all unstable, make fish effect be difficult to ensure.
Summary of the invention
In order to overcome the difficulty that existing fish pass is applied on high dam, the invention provides a kind of hydraulic rotary gate-type fish pass.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of hydraulic rotary gate-type fish pass, comprise the fish tunnel being excessively arranged on dam inside, it is characterized in that, the present invention also comprises following ingredient:
Circular cell, described circular cell is connected with the downstream crossing fish tunnel;
Revolving door, described revolving door is arranged on circular cell inside, and revolving door plays a part to be fish and dash, and revolving door is provided with a large amount of small holes, and the quantity of small holes and area are determined according to required fish pass flow rate of water flow;
Water wheels, provide power for the rotation for revolving door, and the water inlet pipe of described water wheels is connected with waters, dam upstream, and the outlet pipe of water wheels is connected with waters, dam downstream, and the rotating shaft of water wheels is connected with the rotating shaft of revolving door by reduction gearing.
Preferably, the side Gu Bi of described revolving door is the circular arc of 270 ° in the plane in a central angle.
Preferably, in the gap between described revolving door and described circular cell, be provided with several rotating rotatingcylindrical drum, for blocking this gap and jacking revolving door does not affect again the rotation of revolving door simultaneously.
Preferably, the water inlet pipe of described water wheels is provided with valve, for controlling the rotating speed of water wheels.
Compared with prior art, the present invention has following beneficial effect: the present invention can shorten fish pass length greatly, easily reduces flow rate of water flow in fish pass, fish by time physical consumption less, adaptable to height of dam; In addition, the described water inlet crossing fish tunnel can be arranged under dam up-stream face certain depth, and fish pass is run by the restriction of water level on dam, thus and reservoir water and key water control project run between harmony better.
Accompanying drawing explanation
Fig. 1 is overall structure floor map of the present invention;
Fig. 2 is overall structure side schematic view of the present invention;
Fig. 3 is the side schematic view of water wheels.
In figure: 1-crosses fish tunnel, 2-revolving door, 3-circular cell, 4-cylinder, 5-water inlet pipe, 6-valve, 7-water wheels, 8-outlet pipe, 9-reduction gearing.
Detailed description of the invention
Below in conjunction with accompanying drawing, structure of the present invention is described further.
As shown in Figure 1, Figure 2 and Figure 3, the present invention forms primarily of crossing fish tunnel 1, revolving door 2, circular cell 3 and water wheels 7.The upstream extremity crossing fish tunnel 1 is connected with waters, dam upstream, the downstream crossing fish tunnel 1 is connected with circular cell 3, the water inlet crossing fish tunnel 1 is located on the intermediate altitude of dam, to ensure can flood under the water surface in dry season and abundance of water this water inlet in season, to solve the common problem that between fish and reservoir water, harmony is not good excessively of existing fish pass.Circular cell 3 is provided with in mistake fish tunnel 1 direction and downstream water direction the symmetric windows that two central angles are 90 °.Can arrange some measure for fish crossing (as light, ultrasonic wave etc.) in mistake fish tunnel 1 and circular cell 3 lures it to enter fish pass to utilize fish habit.It is inner that revolving door 2 is arranged on circular cell 3, and the side Gu Bi of revolving door 2 is the circular arc of 270 ° in the plane in a central angle, and form the breach that a central angle is 90 °, revolving door 2 is provided with a large amount of small holes.4 rotating rotatingcylindrical drums 4 are provided with in gap between revolving door 2 and circular cell 3.Water wheels 7 are vertically placed, be provided with 8 blades, water wheels 7 are placed in a cubic water tank, the water inlet pipe 5 of water wheels 7 is connected with waters, dam upstream, the outlet pipe 8 of water wheels 7 is connected with waters, dam downstream, the water inlet pipe 5 of water wheels 7 is provided with valve 6, and the rotating shaft of water wheels 7 is connected with the rotating shaft of revolving door 2 by a set of screw conic reduction gearing 9, reaches and slows down and labour-saving effect.
Below in conjunction with accompanying drawing, the course of work of the present invention is elaborated.
The aperture of valve 6 on adjustment water wheels 7 water inlet pipe 5, makes the rotating speed of revolving door 2 be applicable to the current of fish object by water wheels 7 flow-control.When revolving door 2 breach forwards circular cell 3 water export to, fish enter circular cell 3 under migration instinct drives and measure for fish crossing is lured, revolving door 2 continues to rotate closes circular cell 3 water export gradually, after this, revolving door 2 breach forwards circular cell 3 flow inlet to, fish then can be swum out of circular cell 3 and enter fish tunnel 1, and final edge is crossed fish tunnel and swum over to waters, dam upstream.
Experimental study
In order to study feasibility of the present invention, inventor's processing and fabricating physical model of this fish pass, and carried out crossing fish test.Model mainly adopts pmma material to make, and circular cell 3 internal diameter is 24cm, and inner space height is 7cm; Gap between revolving door 2 and circular cell 3 is 1mm, and revolving door 2 offers space between each other is the aperture of 2.5cm is the small sircle hole of 2mm; The cross-section of river crossing fish tunnel 1 is of a size of 8cm × 6cm, and the overall height crossing fish tunnel 1 is 40cm; The delivery port of the water inlet and circular cell 3 of crossing fish tunnel 1 is all connected to a large water tank (being called " upper water box " and " lower header "), to be used for representing waters, upstream and the waters, downstream of dam.Thrown in 20 little grass goldfishes lower header is disposable when crossing fish test, this fish is liked moving about everywhere, by the observation of 20 minutes, finds that having 8 small fish enters revolving door, has wherein swum over to upper water box and completes migration for 5.Experiment results proved the present invention can realize the migration of fish, has a good feasibility.Do not have the serious hope of migration owing to testing fish used, it is not also very good for thus crossing fish effect in model testing.
Claims (5)
1. one kind
hydraulic rotary gate-type fish pass, comprise the fish tunnel being excessively arranged on dam inside, it is characterized in that, this
inventionalso comprise following ingredient:
Circular cell, described circular cell is connected with the downstream crossing fish tunnel;
Revolving door, described revolving door is arranged on circular cell inside, and revolving door plays a part to be fish and dash, revolving door has a large amount of small holes, and the quantity of small holes and area are determined according to required fish pass flow rate of water flow;
Water wheels, provide power for the rotation for revolving door, and the water inlet pipe of described water wheels is connected with waters, dam upstream, and the outlet pipe of water wheels is connected with waters, dam downstream, and the rotating shaft of water wheels is connected with the rotating shaft of revolving door by reduction gearing.
2. according to claim 1
hydraulic rotary gate-type fish pass, it is characterized in that: the side Gu Bi of described revolving door is the circular arc of 270 ° in the plane in a central angle.
3. according to claim 1
hydraulic rotary gate-type fish pass, it is characterized in that: in the gap between described revolving door and described circular cell, be provided with several cylinder, for blocking this gap and jacking revolving door does not affect again the rotation of revolving door simultaneously.
4. according to claim 1
hydraulic rotary gate-type fish pass, it is characterized in that: described water wheels are vertically placed.
5. according to claim 1
hydraulic rotary gate-type fish pass, it is characterized in that: the water inlet pipe of described water wheels is provided with valve, for controlling the rotating speed of water wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416169.XA CN104988886A (en) | 2015-07-14 | 2015-07-14 | Water power revolving door type fishway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416169.XA CN104988886A (en) | 2015-07-14 | 2015-07-14 | Water power revolving door type fishway |
Publications (1)
| Publication Number | Publication Date |
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| CN104988886A true CN104988886A (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510416169.XA Pending CN104988886A (en) | 2015-07-14 | 2015-07-14 | Water power revolving door type fishway |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522176A (en) * | 2016-11-18 | 2017-03-22 | 中国电建集团成都勘测设计研究院有限公司 | Fish inlet structure for fish passing facility |
| CN106567368A (en) * | 2016-10-27 | 2017-04-19 | 中国船舶科学研究中心上海分部 | Facility for fishes to pass through dam |
| CN106592542A (en) * | 2016-12-23 | 2017-04-26 | 安徽理工大学 | Superimposed arc type hydraulic-slope-variable fishway and fish passing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138145Y (en) * | 1992-03-25 | 1993-07-14 | 朱唯争 | Underneath fish tunnel under dam |
| CN103741652A (en) * | 2013-12-05 | 2014-04-23 | 丁钟宇 | Design for fish ways of ecological dam |
| CN104060587A (en) * | 2014-07-10 | 2014-09-24 | 哈尔滨工程大学 | Shutter gate pressure rotary valve fishway |
| KR101471888B1 (en) * | 2014-07-31 | 2014-12-10 | 김성수 | Fishway Apparatus for Fixed Weir |
| CN104480913A (en) * | 2014-11-18 | 2015-04-01 | 河海大学 | Ecological fish way with staggered spacer block structures |
| CN204825814U (en) * | 2015-07-14 | 2015-12-02 | 安徽理工大学 | Rotatory gate -type fishway of hydrodynamic force |
-
2015
- 2015-07-14 CN CN201510416169.XA patent/CN104988886A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138145Y (en) * | 1992-03-25 | 1993-07-14 | 朱唯争 | Underneath fish tunnel under dam |
| CN103741652A (en) * | 2013-12-05 | 2014-04-23 | 丁钟宇 | Design for fish ways of ecological dam |
| CN104060587A (en) * | 2014-07-10 | 2014-09-24 | 哈尔滨工程大学 | Shutter gate pressure rotary valve fishway |
| KR101471888B1 (en) * | 2014-07-31 | 2014-12-10 | 김성수 | Fishway Apparatus for Fixed Weir |
| CN104480913A (en) * | 2014-11-18 | 2015-04-01 | 河海大学 | Ecological fish way with staggered spacer block structures |
| CN204825814U (en) * | 2015-07-14 | 2015-12-02 | 安徽理工大学 | Rotatory gate -type fishway of hydrodynamic force |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567368A (en) * | 2016-10-27 | 2017-04-19 | 中国船舶科学研究中心上海分部 | Facility for fishes to pass through dam |
| CN106522176A (en) * | 2016-11-18 | 2017-03-22 | 中国电建集团成都勘测设计研究院有限公司 | Fish inlet structure for fish passing facility |
| CN106522176B (en) * | 2016-11-18 | 2018-09-11 | 中国电建集团成都勘测设计研究院有限公司 | The fish inlet structure of fish pass structure |
| CN106592542A (en) * | 2016-12-23 | 2017-04-26 | 安徽理工大学 | Superimposed arc type hydraulic-slope-variable fishway and fish passing method |
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Application publication date: 20151021 |
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