CN204000791U - Twin shaft adjustable vertical seam type fish channel - Google Patents
Twin shaft adjustable vertical seam type fish channel Download PDFInfo
- Publication number
- CN204000791U CN204000791U CN201420338409.XU CN201420338409U CN204000791U CN 204000791 U CN204000791 U CN 204000791U CN 201420338409 U CN201420338409 U CN 201420338409U CN 204000791 U CN204000791 U CN 204000791U
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- fish
- baffle plate
- gear
- sidewall
- gallery
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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
Abstract
The utility model discloses a kind of twin shaft adjustable vertical seam type fish channel, it comprises sidewall, base plate, gear track, longitudinal gear, some to the water hole of baffle plate, buttress, horizontal gear, adjustable opening, mistake fish gallery and operation room this fish pass, gear track is positioned on the wall of sidewall near chamber, pond one side, and longitudinally gear is positioned on gear track and can moves along it; Baffle plate is divided into long baffle plate and short shutter, and it is arranged alternately successively on sidewall, the distance that interval is certain, and at Transverse to the flow direction, length baffle plate occurs in pairs; The water hole of adjustable opening and excessively fish gallery are positioned on baffle plate; Baffle plate is connected with horizontal gear by axle with buttress, and buttress is connected with longitudinal gear with sidewall.The utility model distinguishes mistake fish passage and energy dissipating, for crossing fish passage, provides more stable flow shape, makes the impact in fish passage Bu Shou energy dissipating district; Solved fish pass cross fish place flow condition bad, can not be suitable for larger head difference, cross the bad problem of fish effect.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering field, relates to fish channel structure and operation method thereof, is specifically related to a kind of twin shaft adjustable vertical seam type fish channel and operation method thereof.
Background technology
Along with the development in an all-round way of China's economic society, people recognize that hydroelectric generation is when bringing economic benefit, also fish germplasm communication channel have been formed to deadening, have caused the fragmentation in habitat.Along with constantly improving of environmental protection policy and continuing to increase of building project environment supervision, by building fish pass for fish provide migration passage, become gradually one of important measures of hydroelectric project aquatic ecological protection.
Migration (adverse current is up or following current the is descending) habit of fish is mainly considered in the design of fish pass, and when fish adverse current is traced back, fish often rely on the fish pass that is drawn into of gate dam downstream current, and fish overcome flow velocity by self strength and trace back trip to upstream in fish pass.Fish pass is divided into ecosystem formula fish pass, slot type fish pass, special construction pattern fish pass, pond cell-type fish pass (claiming again iris type fish pass) by its structural shape at present.Ecosystem formula fish pass approaches the situation of natural river course very much, and main prolongation flow path and the increase roughness of relying on carrys out energy dissipating; Slot type fish pass mainly passes through at cell wall and very close all kinds of baffle-walls and the whetstone bank of bottom land arrangement pitch, and dissipation energy lower flow velocity, but the type fish pass flow turbulence is violent; Special construction pattern fish pass has unique structural shape, conventionally only for those aquatic organisms that can creep, can adhere to, be good at passing through thick grass gap, traces back and establishes; Pond cell-type fish pass utilizes dividing plate water cushion, opposite jet flow, diffusion and friction drag to carry out energy dissipating, creates the fluidised form that is suitable for fish migration, is therefore to use at present maximum fish pass patterns both at home and abroad.
At present, the pond cell-type fish channel structure adopting comprises fish pass abutment wall and a plurality of dividing plate, described dividing plate is arranged on fish pass abutment wall, described dividing plate is divided into chamber, a plurality of pond by fish pass, energy dissipation relies on dividing plate substantially, cause the front flow-shape more complicated of dividing plate, had a strong impact on the current of fish passage, be unfavorable for the migration of fish.For example, the application for a patent for invention that application number is 201210264529.5, discloses a kind of dividing plate and has been provided with permeable perforation or seam, and permeable perforation or seam can be permeable, but can not pass through fish.Separately having application number is 201120307777.4 utility model patent, a kind of adjustable vertical seam type fish channel structure simple in structure is disclosed, be installed between dividing plate on a side sidewall wherein and opposite side sidewall and leave gap, what the space between this gap and adjacent two dividing plates was linked to be " Z " font crosses fish passage.In these fish channel structures, the energy dissipating district after dividing plate had a strong impact on the flow shape of fish gallery, and energy dissipating district just, perps district, and its flow shape is all very poor, is unfavorable for the migration of fish.In prior art, fish pass design does not all have the passage of energy dissipating district and fish to distinguish.
Utility model content
Goal of the invention: technical problem to be solved in the utility model is to provide a kind of fish channel structure, makes energy dissipating district not overlap with the migration district of fish, the water fluid stable in Shi Yu migration district, and improve the effect of energy dissipation of baffle plate, be beneficial to the migration of fish.
The utility model solves the technical scheme that above technical problem adopts:
A twin shaft adjustable vertical seam type fish channel, comprises sidewall, base plate, gear track, longitudinal gear, some to the water hole of baffle plate, buttress, horizontal gear, adjustable opening, mistake fish gallery and operation room;
Described gear track lays respectively on the wall of sidewall near chamber, pond one side, and described longitudinal gear is positioned on gear track, and can move along it; Described buttress is connected with sidewall by longitudinal gear, and longitudinally gear rotates and drives baffle plate to slide along sidewall, thereby regulates the length of the chamber, pond forming between two pairs of baffle plates;
Every pair of baffle plate comprises long baffle plate and short shutter, and in the same side, along water (flow) direction, long baffle plate and short shutter alternately occur; Long baffle plate and short shutter are all connected on buttress by horizontal gear and axle, and the rotation band moving axis by horizontal gear rotates, and then regulate the angle of long baffle plate and short shutter and sidewall; On described long baffle plate and short shutter, be equipped with the water hole of adjustable opening and cross fish gallery.
Wherein, longitudinally gear refers to that gear shaft is positioned at horizontal direction, and gear rotates simultaneously along the gear that is positioned at the gear track engaged transmission of horizontal plane direction at vertical direction, horizontal gear refers to that gear shaft is positioned at vertical direction, and rotates simultaneously along the gear of arc orbit engaged transmission on buttress in horizontal plane direction.Operation room is positioned on the top platform of sidewall, and every baffle plate has been provided with the machine of closing, and headstock gear is for opening or cut out the water hole of adjustable opening and crossing the gate on fish gallery.There is master valve the upstream of sidewall, and the opening and closing by gate opens and closes to control the water yield in fish pass.
Further, the cross section of described baffle plate is L shaped, and described long baffle plate and short shutter are all made with stainless-steel sheet, is surrounded by bionical crashproof layer outward, and bionical lubricating layer is arranged at bottom; At Transverse to the flow direction, long baffle plate and short shutter occur in pairs, and two baffle plates and sidewall formation angle.Camera is all installed, Real-Time Monitoring current and excessively movement pattern of fish condition on baffle plate downstream face.
Further, the length sum of long baffle plate and short shutter equals the overall width of chamber, pond, and long baffle plate and short shutter can stop the water of a chamber, pond to flow into chamber, next pond after altogether.
Further, on the water hole of adjustable opening, be provided with gate, by the closure or openness of gate, control the flow that flows into chamber, next pond; The water hole of adjustable opening is positioned at long baffle plate and short shutter top, and it is all provided with gate.The water hole of adjustable opening blocks filter or protective screening near distolateral being all provided with of upstream, prevents that fish from entering the water hole of adjustable opening.Meanwhile, many than on short shutter of the water hole quantity of adjustable opening on long baffle plate; Cross the below that fish gallery is positioned at the close side wall portion of baffle plate, and Parallel to the flow direction sees, cross fish gallery axis and water (flow) direction and acutangulate.Meanwhile, on long baffle plate, cross large than on short shutter of fish gallery size, and cross the light source that attracts fish is housed on the top surface in fish gallery, and the pasture and water that can attract fish are housed in bottom faces, and then attract fish to pass through from crossing fish gallery.
Further, in described operation room, comprise computer and process the information that camera collection returns, and the controller of each longitudinal gear and the corresponding action bars of horizontal gear and each gate of control.Action bars is used for regulating the rotation of longitudinal gear and horizontal gear, thereby regulates rotation and the movement of length baffle plate.
An operation method based on above-mentioned twin shaft adjustable vertical seam type fish channel, comprises the following steps:
(1) according to the poor preliminary position of opening first pair of baffle plate of determining of water levels of upstream and downstream, close the water hole of the adjustable opening on the later all baffle plates of the second pair of baffle plate and cross the gate on fish gallery, and adjusting in every pair of baffle plate the distance between long baffle plate (4) short shutter (5), to make its perps be zero;
(2) according to the size of the poor definite unlatching master valve of water levels of upstream and downstream, and the water hole and the gate of crossing fish gallery of opening the adjustable opening of first pair of baffle plate, by fluidised form and the mistake movement pattern of fish condition of current in first chamber, pond of camera collection, the width in judgement convection current energy dissipating district, and on crossing the impact of fish passage;
(3) by control stick, regulate the position of first pair of long baffle plate and short shutter, and the angle of baffle plate and sidewall, energy dissipating district be positioned in the middle of chamber, pond, and make energy dissipating sector width reach the narrowest till, now minimum on crossing the impact of fish passage;
(4) open the water hole of second pair of adjustable opening on baffle plate and cross the gate of fish gallery, the fluidised form by current in chamber, second pond of camera collection and cross movement pattern of fish condition, judgement convection current energy dissipating district and the position of crossing fish passage; By control stick, regulate the position of long baffle plate and short shutter, and the angle of baffle plate and sidewall, continue the narrow energy dissipating sector width of bundle to till minimum value, make energy dissipating district and to cross fish passage irrelevant mutually;
(5) repeating step (4) regulates lower a pair of baffle plate,, until open the gate on the water hole of crossing fish gallery and adjustable opening on all baffle plates.Now, energy dissipating district with cross fish passage and separate, it is best that flow shape reaches, and now crosses fish efficiency and reach best.
Compared with prior art, its beneficial effect is twin shaft adjustable vertical seam type fish channel of the present utility model:
(1) the length baffle plate in the utility model all has the water hole of adjustable opening, and two baffle plates all have a certain degree with sidewall, and the water of the water hole by adjustable opening can carry out convection current energy dissipating in chamber, next pond.Inflow-rate of water turbine on long baffle plate is larger, and after convection current energy dissipating, principal direction is along the flow path direction that sluices under long baffle plate, and this water (flow) direction is just towards the long baffle plate of the next one, and next long baffle plate can carry out energy dissipating again better.
(2) the length baffle plate in the utility model is connected with buttress with horizontal gear by axle, and horizontal gear and axle drive baffle plate to rotate, and change the angle of baffle plate and sidewall, control the position in energy dissipating district, makes energy dissipating district and cross fish passage to be independent of each other.
(3) buttress in the utility model is connected with sidewall by longitudinal gear, on each sidewall, there are two gear passages, can regulate and drive the position of length baffle plate on sidewall by longitudinal gear, thereby regulate the position in convection current energy dissipating district in chamber, next pond, make convection current energy dissipating district and cross fish passage to be independent of each other.
(4) the fish gallery of crossing in the utility model is arranged on the slug flow speed district near bank near bottom, and cross fish gallery and have certain length, cross section along water (flow) direction, cross fish gallery along Cheng Shenggao, the current of crossing in fish gallery can reach the effect of energy dissipating because overcoming the gravity of self and the hydraulic pressure in downstream, and current state are affected little.
(5) the length baffle plate in the utility model can move along sidewall direction by longitudinal gear, can regulate like this length of each chamber, pond, thereby it is poor to adapt to different water levels of upstream and downstream, improves the fish ability of crossing of fish pass.
Accompanying drawing explanation
Fig. 1 is the structure chart of twin shaft adjustable vertical seam type fish channel of the present utility model;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is B-B sectional view in Fig. 1 (following current of simulation fish is descending);
Fig. 4 is the top view of Fig. 1;
Fig. 5 is chamber, fish pass pond current schematic diagram in the utility model;
Fig. 6 is the local fish gallery internal construction schematic diagram of crossing of the utility model;
Fig. 7 is that in the utility model, long baffle plate is connected plan view with sidewall;
Fig. 8 is that in the utility model, long baffle plate is connected top view with sidewall.
Drawing reference numeral explanation:
1 sidewall 2 base plate 3 buttresses
The water hole of 4 long baffle plate 5 short shutter 6 adjustable openings
7 cross 9 of fish gallery 8 operation rooms closes machine
The longitudinal gear 10b of 10a horizontal gear 11 gear tracks
12 light source 13 pasture and water 14 pickup cameras
15 computer 16 action bars
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As shown in Fig. 1 to 8, twin shaft adjustable vertical seam type fish channel of the present utility model, comprise sidewall 1, base plate 2, buttress 3 and be arranged on the long baffle plate 4 of polylith and the short shutter 5 on inside wall 1, on buttress 3, there are horizontal gear 10b and axle, the top platform of sidewall 1 is provided with operation room 8, sidewall 1 is provided with gear track 11 by the wall of chamber, pond, and longitudinally gear 10a is positioned on gear track 11.On inside wall, every block length baffle plate 4 and short shutter 5 alternately occur.On long baffle plate 4, have water hole 6 and a mistake fish gallery 7 of three adjustable openings, on short shutter 5, have water hole 6 and a mistake fish gallery 7 of two adjustable openings, as shown in Figure 2.Cross fish gallery 7 below every baffle plate and near sidewall, along water (flow) direction, the axis of crossing fish gallery 7 becomes 21 ° with water (flow) direction, as shown in Figure 3.In running, from long baffle plate 4, cross the fish that fish gallery 7 passes through, great majority are by crossing fish gallery 7 on next short shutter 5, and the fish that only a few is taken away by main flow direction can be by crossing fish gallery 7 on next long baffle plate 4, as shown in Figure 4.The water of the water hole 6 by adjustable opening can carry out convection current energy dissipating in chamber, next pond, as shown in Figure 4.Inflow-rate of water turbine on long baffle plate 4 is larger, the direction that after convection current, the principal direction of current sluices and flows for 4 times for long baffle plate, and this water (flow) direction is just towards the long baffle plate 4 of the next one, and next long baffle plate 4 can carry out energy dissipating again better, as shown in Figure 5.Cross crossing on fish channel roof face of fish gallery 7 light source 12 that attracts fish is housed, cross the pasture and water 13 that can attract fish are housed on fish channel bottom face, as shown in Figure 6, in the utility model, each baffle plate is connected on sidewall 1 by buttress 3, as shown in Figure 7 and Figure 8, by twin shaft, reach and rotate and along the movement of sidewall direction.
On the basis of the above, according to fish pass design criterion, fish pass width is made as 6m, and long baffle plate 4 is long is 3.6m, and short shutter 5 length are 2.4m, and the Length Ratio of length baffle plate is 3:2.Consider and intend by fish pectoral fin horizontal development distance, the wide 1.5m of fish gallery excessively on long baffle plate 4 is set, high 1m, long 1.9m, crosses the wide 1m of fish gallery, high 0.8m, long 1.7m on short shutter 5.The axis of crossing fish gallery 7 becomes 21 ° with water (flow) direction.According to the difference of each hydraulic engineering, can on length baffle plate 4, offer the water hole 6 of different adjustable openings, generally can on long baffle plate 4, establish the water hole 6 of three adjustable openings, on short shutter 5, establish the water hole 6 of two adjustable openings.The water hole 6 of each adjustable opening has certain spacing, and the fish gallery 7 of crossing at the most close fish pass center has the safe distance of 0.5m with baffle edge, and water hole 6 diameter dimensions that generally can establish adjustable opening are 0.6m.Consider that energy dissipating district is on crossing the impact of fish passage, energy dissipating sector width is generally 1.5m～2.5m.Article two, gear track 11 is positioned on sidewall 1 vertical plane and is parallel with base plate 2, and the center line of two gear tracks 11 is positioned at the third-class office of baffle plate vertical direction.
Twin shaft adjustable vertical seam type fish channel operation method of the present utility model, comprises the following steps:
The utility model is applied to, on certain tributary of domestic certain reservoir area, by shown in Fig. 1, install structure, poor at water levels of upstream and downstream is 65m, and fish pass letdown flow is 60m
3under the operating mode of/s, from the water body of upstream, a part is by the water hole 6 of the adjustable opening of long baffle plate 4, and a part is by the water hole 6 of the adjustable opening of short shutter 5, and some passes through perps.Three is in the convection current energy dissipating of chamber, next pond, closes the gate on the water hole 6 of the adjustable opening on the later all baffle plates of the second pair of baffle plate, and adjusting perps between every pair of baffle plate, to make it be zero substantially.The fluidised form that gathers current in first chamber, pond by camera 14, when the angle of length baffle plate and sidewall is 43 °, now energy dissipating sector width is about 2.1m, and the impact of crossing fish passage Shou Liu energy dissipating district is minimum.Open the gate of the water hole 6 of second pair of adjustable opening on baffle plate, by control stick 16, regulate the angle of long baffle plate 4 and short shutter 5 and sidewall 1, continue the narrow energy dissipating sector width of bundle, when adjustment angle is 43 ° of left and right, when chamber, pond length is 8m left and right, in the first chamber, pond, energy dissipating sector width is 1.6m left and right, now crosses fish passage and is not subject to the impact in convection current energy dissipating district.
By camera 14, gather the fluidised form of current in chamber, second pond, open the gate of the water hole 6 of the 3rd pair of adjustable opening on baffle plate, by control stick 16, regulate long baffle plate 4 and short shutter 5 and the angle of sidewall 1 and the angle of adjustment two baffle plates and sidewall 1, when adjustment angle is 40 ° of left and right, when chamber, pond length is 7m left and right, in the second chamber, pond, energy dissipating sector width is 1.8m left and right, now crosses fish passage and is not subject to the impact in convection current energy dissipating district.
Continue to open the gate of the water hole 6 of the 4th pair of adjustable opening on baffle plate, by camera 14, gather the fluidised form of current in the 3rd chamber, pond, control stick 16 regulates the angle of long baffle plate 4 and short shutter 5 and sidewall 1, when adjusting angle, be that 40 ° of left and right, chamber, pond length are while being 7m left and right, in the 3rd chamber, pond, energy dissipating sector width is 1.7m left and right, now crosses fish passage and is not subject to the impact in convection current energy dissipating district.Fish passed through 7 migrations of fish gallery or downstream, through some meeting of fish of serious offense fish gallery 7, by main flow direction, be taken on the serious offense fish gallery 7 of downstream opposite side.Cross fish passage and be not subject to the impact in energy dissipating district, cross fish efficiency higher.
Visible, the utility model separates energy dissipating district with mistake fish passage, makes energy dissipating district not affect the flow shape of fish passage, has guaranteed to cross the flow shape of fish gallery 7, and fish passage flow rate of water flow was reduced, and has improved the fish efficiency excessively of fish pass.Application prospect is good.
Although represented and explained the utility model with reference to specific embodiment, it shall not be construed as the restriction to the utility model self.Not departing under the spirit and scope prerequisite of the present utility model of claims definition, can make in the form and details various variations to it.
Claims (7)
1. a twin shaft adjustable vertical seam type fish channel, is characterized in that: comprise sidewall (1), base plate (2), gear track (11), longitudinal gear (10a), some to the water hole (6) of baffle plate, buttress (3), horizontal gear (10b), adjustable opening, mistake fish gallery (7) and operation room (8);
Described gear track lays respectively on the wall of sidewall (1) near chamber, pond one side, and it is upper that described longitudinal gear (10a) is positioned at gear track (11), and can move along it; Described buttress (3) is connected with sidewall (1) by longitudinal gear (10a), and longitudinally gear (10a) rotates and drives baffle plate to slide along sidewall (1), thereby regulates the length of the chamber, pond forming between two pairs of baffle plates;
Every pair of baffle plate comprises long baffle plate (4) and short shutter (5), and in the same side, along water (flow) direction, long baffle plate (4) and short shutter (5) alternately occur; Long baffle plate (4) and short shutter (5) are all connected on buttress (3) by horizontal gear (10b) and axle, the rotation band moving axis of horizontal gear (10b) rotates, and then regulates the angle of long baffle plate (4) and short shutter (5) and sidewall (1);
On described long baffle plate (4) and short shutter (5), be equipped with the water hole (6) of adjustable opening and cross fish gallery (7).
2. twin shaft adjustable vertical seam type fish channel according to claim 1, is characterized in that: the cross section of described baffle plate is L shaped, and described baffle plate is steel and makes, and is surrounded by bionical crashproof layer outward, and bionical lubricating layer is arranged at bottom; At Transverse to the flow direction, long baffle plate (4) and short shutter (5) occur in pairs, and two baffle plates and sidewall (1) formation angle, camera (14) are installed, Real-Time Monitoring current and excessively movement pattern of fish condition on two baffle plate downstream faces.
3. twin shaft adjustable vertical seam type fish channel structure according to claim 1, is characterized in that: the water hole of adjustable opening is provided with gate on (6), controls the flow that flows into chamber, next pond by the closure or openness of gate; The water hole of adjustable opening (6) upstream side is provided with and blocks filter, prevents that fish from passing through from the water hole (6) of adjustable opening; The quantity of the water hole (6) of the adjustable opening on long baffle plate (4) is than wanting many on short shutter (5).
4. twin shaft adjustable vertical seam type fish channel according to claim 1, it is characterized in that: described fish gallery (7) is excessively positioned at the below of the close sidewall (1) of baffle plate, and Parallel to the flow direction sees, axis and the water (flow) direction of crossing fish gallery (7) acutangulate; Large than on short shutter (5) of the size of crossing fish gallery (7) on long baffle plate (4).
5. according to the twin shaft adjustable vertical seam type fish channel described in claim 1 or 4, it is characterized in that: described fish gallery (7) upstream side of crossing is provided with gate, controls the flow of fish gallery (7) by the closure or openness of gate; The light source (12) that attracts fish is equipped with in described crossing on the interior top surface of fish gallery (7), and the pasture and water (13) that attract fish are housed in bottom faces.
6. twin shaft adjustable vertical seam type fish channel according to claim 2, is characterized in that: the computer (15) that comprises the information gathering back for the treatment of camera (14) in described operation room (8) and each longitudinal gear (10a) and the corresponding action bars of horizontal gear (10b) (16); Described action bars (16) is used for regulating the rotation of longitudinal gear (10a) and horizontal gear (10b), thus the rotation of controllable register and movement.
7. twin shaft adjustable vertical seam type fish channel according to claim 1, is characterized in that: the length sum of long baffle plate (4) and short shutter (5) equals the overall width of chamber, pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338409.XU CN204000791U (en) | 2014-06-23 | 2014-06-23 | Twin shaft adjustable vertical seam type fish channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338409.XU CN204000791U (en) | 2014-06-23 | 2014-06-23 | Twin shaft adjustable vertical seam type fish channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204000791U true CN204000791U (en) | 2014-12-10 |
Family
ID=52040817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338409.XU Withdrawn - After Issue CN204000791U (en) | 2014-06-23 | 2014-06-23 | Twin shaft adjustable vertical seam type fish channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204000791U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018473A (en) * | 2014-06-23 | 2014-09-03 | 河海大学 | Double-axis adjustable vertical seam type fish way and operation method thereof |
| CN104762935A (en) * | 2015-03-18 | 2015-07-08 | 杭州金培科技有限公司 | Vertical shaft type fishway |
| CN105908685A (en) * | 2016-04-11 | 2016-08-31 | 河海大学 | Double-side vertical slot type fishway with high energy dissipation and suitable for bidirectional water flow |
| CN108086261A (en) * | 2018-01-29 | 2018-05-29 | 安徽理工大学 | A kind of wing water conservancy energy dissipator of variable-angle |
| CN114804512A (en) * | 2022-04-02 | 2022-07-29 | 华南师范大学 | Sewage treatment device |
-
2014
- 2014-06-23 CN CN201420338409.XU patent/CN204000791U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018473A (en) * | 2014-06-23 | 2014-09-03 | 河海大学 | Double-axis adjustable vertical seam type fish way and operation method thereof |
| CN104018473B (en) * | 2014-06-23 | 2015-11-18 | 河海大学 | Twin shaft adjustable vertical seam type fish channel and operation method thereof |
| CN104762935A (en) * | 2015-03-18 | 2015-07-08 | 杭州金培科技有限公司 | Vertical shaft type fishway |
| CN105908685A (en) * | 2016-04-11 | 2016-08-31 | 河海大学 | Double-side vertical slot type fishway with high energy dissipation and suitable for bidirectional water flow |
| CN108086261A (en) * | 2018-01-29 | 2018-05-29 | 安徽理工大学 | A kind of wing water conservancy energy dissipator of variable-angle |
| CN114804512A (en) * | 2022-04-02 | 2022-07-29 | 华南师范大学 | Sewage treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |