CN2141433Y

CN2141433Y - Water way for fish crossing dam

Info

Publication number: CN2141433Y
Application number: CN91232717U
Authority: CN
Inventors: 马良
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-20
Filing date: 1991-12-20
Publication date: 1993-09-01
Anticipated expiration: 2001-12-20

Abstract

The utility model relates to a water way facility for fish crossing the dam. The 'fish way'(4) of the utility model is to solve the condition of the fish blocked at the dam. The 'fish way ' (4) is directly connected to the inside water surface (1) and the outside water surface (11) of a dam body (2) by the slope angle (10) from 20DEG to 50DEG formed by the dam body (2) and the horizontal surface (1). The junction of the 'fish way ' (4) and the dam is provided with a 'rise and fall type junction' (3) which can rise and fall following the rise and the fall of water level in the dam to keep the same height with the water surface in the dam from beginning to end, and a series of stepped partition boards (5) ranged from top to bottom in the 'fish way ' (4) form stepped 'pool' series (6) simultaneously. The utility model adapts to the fish's physiology habit and instinct completely, and can ensure the fish in a clear water way.

Description

Water way for fish crossing dam

The utility model relates to a kind ofly becoming an angle of slope by barrage and with horizontal plane and directly being connected the waterway channel of the water surface inside and outside the dam body.Particularly the joining place of it and barrage have a lifting to change according to water level in the dam and thereupon lifting change, thereby remain and the fish channel establishment of water surface in dam in " the ascending/decending joint portion " of equal height position.

Since ancient times, many marine fishes all have the habit of laying eggs to the upstream of rivers by season.Since barrage is born, this natural ecological homeostasis phenomenon promptly becomes history in the rivers of barrage building up.Enjoying a trip to up and down of fish by eternal obstruct.

Overcoming the above problems once had some such as utilizing ship lock and husky duct of row and similar therewith other method and measure thereof.But all these methods and approach all can't fundamentally solve fish and waltz through the barrage high dam.These methods are not that strong mechanical movement dare not go on foot by " river in ancient China more " fish, are exactly that the water flow pressure that flows out in the dam causes the shoal of fish to go deep into too greatly, perhaps also have other artificial interference that fish are not dared to inquire.In fact can be very rare or even do not have by the fish that dam body is got back to the upstream.In a word, also there are not a kind of facility and practicable method of desirable moulding to overcome the above problems till settled the present.

The purpose of this utility model is that a kind of very good and very effective waterway channel that is similar to the nature streams will be provided, and makes fish can safe and soundly waltz through barrage.

The purpose of this utility model is achieved in that because in the scope of physiological habit that the angle α of the waterway channel of the inside and outside water surface of the binding dam body that manually sets up and horizontal plane jumps on 20 °～50 ° suitable fish are in against the current and instinct.Therefore fish fully can freedom in " river " like this streams about.Current smoothly.Particularly the middle lower floor in the waterway channel has a series of suitable dividing plate that passage is caused from bottom to top a series of " stairstepping pond ".The interior rest of middle lower floor " pond " that fish are braved against the current and just can rest on this position when arriving certain position.Like this, the shoal of fish not only can not washed away by the flowing water on upper strata in passage, but also can be in " pond " thus in conserve strength and store up energy to prepare to brave against the current once again next time and arrive new height.So step and on, the waters of fish within just can be from the waters superinverse outside the dam body to dam body: if fish be by in the dam to the dam external water area, then one tunnel " with the wind " especially in passage.Going downstream is nothing difficult really, current up and down so smoothly, thereby realizes that fish pass through the purpose and the shape act of barrage smoothly.

Water channel of the present utility model is the superinverse person's character of suitable fully fish not only, and particularly it is just like one " the artificial Milky Way ".Thereby many artificial interference have been eliminated effectively, especially the common mechanical movement interference and the interference of crunch have been overcome fully, therefore be passage and the approach that very good most suitable fish pass through barrage, also because this " the artificial Milky Way " to shipping and the generating without any influence, so this utility model is the undisputed preferred version of round-the-clock the best.

The concrete structure of utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is according to the sectional drawing that the utility model proposes " crossing the dam water channel " facility.

Describe details and practical situation in detail below in conjunction with Fig. 1 according to the concrete facility that the utility model proposes.

This facility be dam body 2. near the upper water plane 1. the position and a waterway channel setting up between 9. of the rest pier in the suitable waters outside the dam body 4., 5. the 4. interior middle lower floor of passage is provided with a series of dividing plate, per two dividing plates form one " pond " 6. between 5., " pond " 6. passage 4. in a series of stairstepping pond series from bottom to top of formation.

Thereby the water body within the barrage by by the lifting variation of water level in the dam lifting remain with water surface in dam " the ascending/decending joint portion " of same position 3. flow channel form one streams in 4. and 7. flow into horizontal plane outside the dam 8. the shoal of fish braves against the current in passage, and 10. the α angle is the angle of passage and horizontal plane, should be advisable between 20 °～50 ° in the α angle, also can be loosened to 10 °～70 ° scope in case of necessity, and this scope is also still among the superinverse person's character limit in one's power of fish.

" fish cross the dam waterway channel " that the utility model proposed is though structure is extremely simple, but it is practical especially reliable and effective, it is as one streams artificial " Milky Way ", for fish have been opened up a very desirable optimal path by barrage smoothly, if the stage casing of this passage and hypomere are included flood spillway in and are together designed and build then cost is greatly reduced, therefore adding it almost without any negative interaction, is the optimization method and the approach of undisputed the best really.Ought to become preferred option.

Successfully utilization of the present utility model.The situation that will make fish be hampered by barrage becomes history.

(December 10 1991 Christian era)

Claims

1, becomes a slanted angle by barrage and with horizontal plane and directly be connected the waterway channel of the water surface inside and outside the dam body.Particularly the joining place of it and barrage has the fish channel establishment of " an ascending/decending joint portion " that changes according to fluctuation in stage in the dam and thereupon can free lifting: 4. this facility has like the streams waterway channel.There are a series of 5. series of step-like dividing plate that are in the middle lower floor that it is characterized in that passage inside 4..Thereby the stairstepping " pond " that forms from bottom to top is 6. serial.

2, facility according to claim 1.It is characterized in that " ascending/decending joint portion " 3. be near dam body with interior water surface site, and can change and free lifting thereupon according to the lifting of water surface in dam.Thereby remain " ascending/decending joint portion " 3. with water surface in dam 1. in the sustained height position.

3,, it is characterized in that " ascending/decending joint portion " 3. can control channel current 4. flow 7., and 8. the shoal of fish is passed through smoothly according to claim 1 or 2 described facilities.

4, facility according to claim 1, it is characterized in that waterway channel 4. with horizontal plane

10. the inclined angle alpha that is become is the scope at 10 °～70 °.I.e. 10 °≤α≤70 °.

5, facility according to claim 1, it is characterized in that a series of serial dividing plates of arranging from bottom to top that are the ladder form 5. form from bottom to top the series that is the ladder form " pond " 6.; 8. 7. current pass through above the series in " pond " with the shoal of fish.Also can rest on series " pond " 6. among, thereby make fish can freedom about.