CN107654330A - A kind of power device for generating hydroelectricity for not blocking river course - Google Patents
A kind of power device for generating hydroelectricity for not blocking river course Download PDFInfo
- Publication number
- CN107654330A CN107654330A CN201710676956.7A CN201710676956A CN107654330A CN 107654330 A CN107654330 A CN 107654330A CN 201710676956 A CN201710676956 A CN 201710676956A CN 107654330 A CN107654330 A CN 107654330A
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- China
- Prior art keywords
- blade
- river course
- transmission shaft
- force transmission
- power device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/14—Rotors having adjustable blades
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Hydraulic Turbines (AREA)
Abstract
The present invention provides a kind of power device for generating hydroelectricity for not blocking river course, the force transmission shaft of river course two sides and some blades on force transmission shaft are arranged on by supporting arrangement across river course including at least one, the force transmission shaft is connected in the position being located in river course positioned at the blade for making to be mounted thereon in streamflow, at least one end with the transmission device in the generating set on riverbank；The blade profile of the blade, it is wide in depth of water direction, left and right sides blade face is the streamlined curved surface along water (flow) direction, and it is more than the flow velocity on opposite side blade face in the flow velocity on the blade face of side when current flow through blade, make the pressure initiation pressure differential on the blade face of blade both sides, by the force transmission shaft for generating set provide needed for machine power.Hydroelectric generation is completed on the premise of present invention can be implemented in not blocked to natural river course, so as to avoid being adversely affected caused by blocking river, form reservoir to ecological environment, animals and plants, natural sediment transport etc..
Description
Technical field
The invention belongs to technical field of hydroelectric generation in Hydraulic and Hydro-Power Engineering, and in particular to a kind of waterpower for not blocking river course
Generation power device.
Background technology
Hydroelectric generation is that the water for being located at eminence using river etc. and having potential energy flow to lower, and potential energy is converted into the hydraulic turbine
Kinetic energy, then produce electric energy by means of the hydraulic turbine for motive power pushing generator.Because current constantly circulate according to certain Hydrology Period,
There is recyclability as the energy, hydroelectric generation is just with the energy entrained by current, without consuming other power resources again,
And the used current in upper level power station still can be that next stage power station utilizes, the cost of generating is relatively low, can provide cheap clear
The clean energy.But hydroelectric generation needs constructing river dam concentrated flow drop, huge, construction period length is on the one hand invested, separately
On the one hand need artificially to block natural river course, ecological environment is had a certain impact, reservoir area may flood good farmland, forest
With the cultural facility such as historic site, the life and procreation of fish can be influenceed, or even immigration relocation can be caused.After reservoir is built up, in reservoir area
Sediment Siltation occurs, causes to wash away in downstream.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of hydroelectric generation power dress for not blocking river course
Put, realize and hydroelectric generation is completed on the premise of not blocked to natural river course, so as to avoid because blocking river, forming reservoir to life
Adverse effect caused by state environment, animals and plants, natural sediment transport etc., while save hydropower construction works amount and cost of investment.
For above goal of the invention, the present invention provides a kind of power device for generating hydroelectricity for not blocking river course, including at least
One is arranged on the force transmission shaft of river course two sides and some blades on force transmission shaft across river course by supporting arrangement, described
Force transmission shaft is in the position being located in river course positioned at the blade for making to be mounted thereon in streamflow, and at least one end is with being arranged on riverbank
On generating set in transmission device connection；The blade profile of the blade, wide in depth of water direction, left and right sides blade face is along water
The streamlined curved surface in direction is flowed, and is more than the stream on opposite side blade face in the flow velocity on the blade face of side when current flow through blade
Speed, make the pressure initiation pressure differential on the blade face of blade both sides, by the force transmission shaft for generating set provide needed for machine power.
It is more than in the above-mentioned technical proposal of the present invention, during to make current flow through blade in the flow velocity on the blade face of side another
Flow velocity on lateral lobe face, so that the pressure initiation pressure differential on the blade face of blade both sides, finally makes blade by from current
To the thrust of blade side, can realize by the following two kinds of programs：
First, blade face at left and right sides of blade to be designed as to the blade face of symmetrical structure shape, blade passes through on force transmission shaft
Mounting hole make the plane of symmetry direction on blade face at left and right sides of blade in a certain angle with water (flow) direction, formed and flow through blade in current
When in the flow velocity on the blade face of side be more than opposite side blade face on flow velocity.Second, blade face at left and right sides of blade is designed as asymmetric
The blade face of planform, the streamline on the streamlined blade face in side is longer than opposite side, pressure differential is formed so as to realize.Now, blade
Mounting hole design can only meet by blade be arranged on force transmission shaft on.
Prioritizing selection of the present invention is designed as the blade face of the first symmetrical structure shape.
For the scheme on the blade face of the present invention that blade face at left and right sides of blade will be designed as to symmetrical structure shape, enter one
Step optimization design is that blade makes the direction of the blade plane of symmetry and water (flow) direction be in 10 ° by the mounting hole on force transmission shaft
~30 ° of angles.
When blade face is designed as the blade face of symmetrical structure shape at left and right sides of blade, the specific Dam Configuration Design of individual blade needs root
It is designed according to the specific hydrology flow condition in river, principle is individual blade is met that the streamline build under corresponding flow condition is set
Meter, decision design are：The cross-sectional profiles of the blade are the small shuttle of the big afterbody in head surrounded by the smooth linking of multi-section circular arc
Shape, its head arc radius to meet water are r1, afterbody arc radius is r2, both sides are connected right for two sections with head circular arc both ends
Radius be referred to as R1Circular arc, what both sides were connected with afterbody circular arc both ends is R for two sections of symmetrical radiuses2Circular arc, and per side
Two sections of smooth linkings of circular arc.The radius is R1Circular arc and radius be R2Circular arc dovetail at it is maximum for the width of fusiformis blade
Place, further optimization design are that the joining relation of two sections of circular arcs meets making center circle just using this joining place Breadth Maximum as diameter
Good tangent with both sides circular arc, width is designated as center circle diameter D at this.The design parameter of blade includes vane overall length L, vertical height
H, r1, r2, R1, R2 and center circle diameter D, central circle is apart from front position L1, apart from back-end location L2.Specific design
The determination of parameter should design according to the hydraulics in actual river course, to reach pressure at both sides condition most beneficial for realization to activity
The purpose of the motive force of bearing.
In the above-mentioned technical proposal of the present invention, the clipping room of adjacent blades is away from preferably not less than 2 times on same force transmission shaft
Center circle diameter D.
In the above-mentioned technical proposal of the present invention, the axis phase vertical with blade center circle circle central axis of blade mounting hole
Hand over, and it is up and down 1/2~2/3 opening position that the intersection point of two axial lines, which is preferably located at blade,.
In the above-mentioned technical proposal of the present invention, force transmission shaft can be multiple according to the depth of water and orographic condition arrangement along the depth of water, and one
As arrange 2~4.
In the above-mentioned technical proposal of the present invention, along the vertical distance between adjacent two force transmission shaft of depth of water arrangement preferably not
Vertical distance less than the height H of individual blade, and bottom blade perigee distance bottom of river channel is preferably not less than single leaf
Piece height H.
In the above-mentioned technical proposal of the present invention, when blade design is asymmetric blade face blade construction form, according to stream
The simulating shape design of the shorter side of line and its symmetrical side are so as to obtain center circle position, for use as between the peace turn of blade
Reference away from, the design attitude of mounting hole and height, reference method are identical with symmetrical blade face blade construction form.
In the above-mentioned technical proposal of the present invention, the generation principle of power is as follows：
When current flow through individual blade, because the meet water obstruction on head of blade causes the river course cross section that current flow through to become
It is small, the flow rate of water flow increase of two streamlined sides of blade.Blade face is designed as symmetrical structure shape at left and right sides of blade
During blade face, when current flow through individual blade, but because blade centreline and water (flow) direction have certain angle, according to Bernoulli Jacob
Law understands that the flow velocity of side current is higher than opposite side current, flow action side surface of high flow rate one on blade on the whole
Static pressure is less than the static pressure acted on the side surface of low flow velocity one；Blade face is designed as unsymmetric structure shape at left and right sides of blade
During blade face, because blade is asymmetric, the flow velocity of page both sides is different, the flow action side surface of high flow rate one over the paddle
Static pressure be less than the static pressure that acts on the side surface of low flow velocity one.Due to the presence of blade both side surface pressure difference, obtain blade
To the thrust of a lateral movement, in the river course of one fixed width, multiple blades can be arranged according to streamflow condition, these blades
Form a system under same principle to make a concerted effort, this makes a concerted effort to drive force transmission shaft to move perpendicular to water (flow) direction, vertical by passing
Machine power is supplied to generating set by axle motion.The both ends for passing vertical shaft separately design generating set, and one of them is to be subject to
The thrust of force transmission shaft is power source, and another generating set is using the pulling force of force transmission shaft being subject to as power source.
Compared with prior art, the invention has the advantages that：
1st, power device for generating hydroelectricity of the present invention is different from the hydraulic turbine during conventional hydraulic generates electricity, without passing through barrage
Raising of water level of building a dam drives the hydraulic turbine to rotate and generated electricity using water drop, and it is generator to realize under conditions of river is not blocked
Group provides power source, ensure that the continuity of natural river course, and defeated shifting that will not be to silt, the natural ecological environment in some areas are made
Influenceed into obvious, while it also avoid building dam, save hydropower construction works amount and cost of investment.
2nd, power device for generating hydroelectricity flexible arrangement of the present invention, on the one hand can be according to urban river water along depth of water direction
The deep suitable number of plies of condition setting, the height of blade is adjusted, on the other hand can be multiple rows of in different position settings along river direction.
There is no particular/special requirement to the orographic condition of setting, electric energy can be achieved and convey nearby, avoid the loss of long-distance sand transport.
3rd, the structure of power device for generating hydroelectricity of the present invention is simple, relies solely on the pressure differential work for flowing through blade both sides
For generation driving force source, maintenance cost is relatively low in actual moving process.
Brief description of the drawings
Fig. 1 is the power device for generating hydroelectricity for not blocking river course for setting single force transmission shaft cloth on river course of the present invention
The top view put；
Fig. 2 is the power device for generating hydroelectricity of the present invention that do not block river course for setting single force transmission shaft on river course
Top view (river course cross-sectional direction)；
Fig. 3 is the power device for generating hydroelectricity for not blocking river course of two force transmission shafts of setting of the present invention on river course
Top view (river course cross-sectional direction)；
Fig. 4 be the power device for generating hydroelectricity of the present invention for not blocking river course blade construction and its on force transmission shaft
Scheme of installation；
Fig. 5 is section of the blade parallel to top surface direction of the power device for generating hydroelectricity of the present invention for not blocking river course
Figure；
Fig. 6 is position signal of the blade of the power device for generating hydroelectricity of the present invention for not blocking river course in current
Figure；
Fig. 7 is the force analysis figure of the blade of the power device for generating hydroelectricity of the present invention for not blocking river course.
In figure, 1- force transmission shafts, 2- blades, 3- riverbanks, 4- generating sets.
Embodiment
The power device for generating hydroelectricity of the present invention for not blocking river course is done further below by embodiment
Explanation.
Embodiment 1
The power device for generating hydroelectricity structure such as Fig. 1-2 in river course is not blocked described in the present embodiment, shown in Fig. 4-5, including one
It is individual that the force transmission shaft 1 of river course two sides 4 and some blades 2 on force transmission shaft, institute are arranged on by supporting arrangement across river course
Force transmission shaft horizontal riverbank 3 that collapses in a manner of vertical with water (flow) direction is stated to install, and both ends respectively with the generator on the bank slope of river course two
Transmission device connection in group 4；The blade profile of the blade, wide in depth of water direction, left and right sides blade face is along water (flow) direction
Streamlined curved surface, blade left and right sides blade face are the blade face of symmetrical structure shape, and blade passes through the installation on force transmission shaft
Hole makes the plane of symmetry direction on blade face and water (flow) direction at left and right sides of blade be in 30 ° of angles, is formed when current flow through blade in one
Flow velocity on lateral lobe face is more than the flow velocity on opposite side blade face, makes the pressure initiation pressure differential on the blade face of blade both sides, passes through institute
State force transmission shaft for generating set provide needed for machine power.
Blade is designed specifically to：Blade is to be connected the head surrounded by multi-section circular arc is smooth parallel to the cross sectional shape of top surface
The small fusiformis of the big afterbody in portion, its head arc radius to meet water are r1, afterbody arc radius is r2, both sides and head circular arc both ends
Linking is R for two sections of symmetrical radiuses1Circular arc, what both sides were connected with afterbody circular arc both ends is that two sections of symmetrical radiuses are
R2Circular arc, and per side two sections of smooth linkings of circular arc.The radius is R1Circular arc and radius be R2Circular arc dovetail at be shuttle
The width maximum of shape, the joining relation of two sections of circular arcs meet that make circle as diameter using this joining place Breadth Maximum just justifies with both sides
Arc is tangent, and width is designated as center circle diameter D at this.The clipping room of adjacent blades is away from not less than 2 times center circle diameters on force transmission shaft.
Blade is vertical with the axis in force transmission shaft by the axis for crossing central circle and is fixedly mounted on force transmission shaft in a manner of intersecting, and
The intersection point of two axial lines is located at 2/3 height of blade height.Along the vertical distance between adjacent two force transmission shaft of depth of water arrangement not
Less than the height H of individual blade, and the vertical distance of bottom blade perigee distance bottom of river channel is high not less than individual blade
Spend H.
In the present embodiment, blade ambient water fluidised form is shown in Fig. 6, and the stress diagram of blade is shown in Fig. 7.When current flow through it is single
During blade, because the meet water obstruction river course cross section that causes current to flow through on head of blade diminishes, two streamlined sides of blade
The flow rate of water flow increase in face.But because blade centreline and water (flow) direction have certain angle, it can be seen from Bernoulli's theorem
The flow velocity of side current is higher than opposite side current on the whole, and flow action static pressure of the side surface of high flow rate one on blade is less than
The static pressure acted on the side surface of low flow velocity one, due to the presence of blade both side surface pressure difference, blade is set to obtain to a lateral movement
Thrust, in the river course of one fixed width, multiple blades can be arranged according to streamflow condition, these blades are in same principle
One system of lower formation is made a concerted effort, and this makes a concerted effort to drive force transmission shaft to move perpendicular to water (flow) direction, by passing vertical shaft motion by machine
Tool power is supplied to generating set.The both ends for passing vertical shaft separately design generating set, and one of them is pushed away with the force transmission shaft that is subject to
Power is power source, and another generating set is using the pulling force of force transmission shaft being subject to as power source.
Embodiment 2
The present embodiment and the difference of embodiment 1 are：Blade face is designed as unsymmetric structure shape at left and right sides of blade
Blade face, the streamline on streamlined blade face on the left of water (flow) direction is set to be longer than on the right side of water (flow) direction so that in left side when current flow through blade
Flow velocity on blade face is more than the flow velocity on the blade face of right side, and the static pressure of the flow action side surface of high flow rate one over the paddle is less than
The static pressure acted on the side surface of low flow velocity one, pressure differential form the thrust to a direction, are generating by the force transmission shaft
Machine power needed for group offer.It can now design according to the simulating shape of the shorter side of streamline and be obtained with its symmetrical side
Center circle, turn the reference of spacing, the design attitude of mounting hole and height for use as the peace of blade.
Claims (10)
1. a kind of power device for generating hydroelectricity for not blocking river course, it is characterised in that pass through branch across river course including at least one
Bearing apparatus be arranged on river course two sides (3) force transmission shaft (1) and some blades (2) on force transmission shaft, the force transmission shaft in
The blade that being located in river course makes to be mounted thereon is located at the position in streamflow, at least one end and the generating on riverbank
Transmission device connection in unit (4)；The blade profile of the blade, wide in depth of water direction, left and right sides blade face is along current side
To streamlined curved surface, and when current flow through blade in the flow velocity on the blade face of side be more than opposite side blade face on flow velocity, make
Pressure initiation pressure differential on the blade face of blade both sides, by the force transmission shaft for generating set provide needed for machine power.
2. the power device for generating hydroelectricity according to claim 1 for not blocking river course, it is characterised in that at left and right sides of blade
Blade face is the blade face of symmetrical structure shape, and blade makes pair on blade face at left and right sides of blade by the mounting hole on force transmission shaft
Title face direction is in a certain angle with water (flow) direction, is formed and is more than opposite side in the flow velocity on the blade face of side when current flow through blade
Flow velocity on blade face.
3. the power device for generating hydroelectricity according to claim 2 for not blocking river course, it is characterised in that blade passes through installation
Mounting hole on force transmission shaft makes the direction of the blade plane of symmetry and water (flow) direction is in 10 °~30 ° angles.
4. do not block the power device for generating hydroelectricity in river course according to claim 3, it is characterised in that the blade it is transversal
Facial contour is the small fusiformis of the big afterbody in head surrounded by the smooth linking of multi-section circular arc, and its head arc radius to meet water is r1,
Afterbody arc radius is r2, what both sides were connected with head circular arc both ends is R for two sections of symmetrical radiuses1Circular arc, both sides and afterbody
The linking of circular arc both ends is R for two sections of symmetrical radiuses2Circular arc, and per side two sections of smooth linkings of circular arc.
5. the power device for generating hydroelectricity in river course is not blocked according to claim 4, it is characterised in that the radius is R1Circle
Arc and radius are R2Circular arc dovetail at be fusiformis blade width maximum, the joining relation of two sections of circular arcs meets to be connected with this
Place's Breadth Maximum is that to make center circle just tangent with both sides circular arc by diameter D.
6. the power device for generating hydroelectricity in river course is not blocked according to claim 5, it is characterised in that phase on same force transmission shaft
The clipping room of adjacent blade is away from not less than 2 times center circle diameter D.
7. the power device for generating hydroelectricity in river course is not blocked according to claim 6, it is characterised in that the axle of blade mounting hole
Line intersects vertically with blade center circle circle central axis, and it is up and down 1/2~2/3 opening position that the intersection point of two axial lines, which is located at blade,.
8. not blocking the power device for generating hydroelectricity in river course according to any claim in claim 1~7, its feature exists
In force transmission shaft is equally spaced 2~4 along depth of water direction.
9. the power device for generating hydroelectricity in river course is not blocked according to any claim in claim 1~7, its feature
Vertical distance between adjacent two force transmission shaft arranged along the depth of water is not less than the height H of individual blade, and bottom blade
The vertical distance of perigee distance bottom of river channel is not less than individual blade height H.
10. the power device for generating hydroelectricity in river course is not blocked according to claim 8, it is characterised in that arrange in along the depth of water
Adjacent two force transmission shaft between vertical distance be not less than the height H of individual blade, and bottom blade perigee distance river course
The vertical distance of bottom is not less than individual blade height H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710676956.7A CN107654330A (en) | 2017-08-09 | 2017-08-09 | A kind of power device for generating hydroelectricity for not blocking river course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710676956.7A CN107654330A (en) | 2017-08-09 | 2017-08-09 | A kind of power device for generating hydroelectricity for not blocking river course |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107654330A true CN107654330A (en) | 2018-02-02 |
Family
ID=61127784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710676956.7A Pending CN107654330A (en) | 2017-08-09 | 2017-08-09 | A kind of power device for generating hydroelectricity for not blocking river course |
Country Status (1)
| Country | Link |
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| CN (1) | CN107654330A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761862A (en) * | 2020-12-31 | 2021-05-07 | 潍坊新力蒙水产技术有限公司 | Draw case reciprocating piston type hydroelectric installation |
| CN113152360A (en) * | 2021-04-08 | 2021-07-23 | 扬州大学 | Intelligent adjustment and optimization flow guide device for river confluence flow field and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231021A (en) * | 1996-09-20 | 1999-10-06 | 李·阿诺德 | Extraction of energy from flowing fluids |
| CN101072708A (en) * | 2004-10-05 | 2007-11-14 | 克拉维斯控股公司 | Device for moving an object in relation to a fluid |
| CN103168168A (en) * | 2010-10-01 | 2013-06-19 | 拉瓦勒大学 | Oscillating hydrofoil, turbine, propulsive system and method for transmitting energy |
| CN103299067A (en) * | 2010-09-14 | 2013-09-11 | 温米尔海洋能股份有限公司 | Hydrokinetic electrical generating device |
| KR101559329B1 (en) * | 2015-03-26 | 2015-10-12 | 정민시 | Apparatus For Generating Using Buoyancy |
-
2017
- 2017-08-09 CN CN201710676956.7A patent/CN107654330A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231021A (en) * | 1996-09-20 | 1999-10-06 | 李·阿诺德 | Extraction of energy from flowing fluids |
| CN101072708A (en) * | 2004-10-05 | 2007-11-14 | 克拉维斯控股公司 | Device for moving an object in relation to a fluid |
| CN103299067A (en) * | 2010-09-14 | 2013-09-11 | 温米尔海洋能股份有限公司 | Hydrokinetic electrical generating device |
| CN103168168A (en) * | 2010-10-01 | 2013-06-19 | 拉瓦勒大学 | Oscillating hydrofoil, turbine, propulsive system and method for transmitting energy |
| KR101559329B1 (en) * | 2015-03-26 | 2015-10-12 | 정민시 | Apparatus For Generating Using Buoyancy |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761862A (en) * | 2020-12-31 | 2021-05-07 | 潍坊新力蒙水产技术有限公司 | Draw case reciprocating piston type hydroelectric installation |
| CN113152360A (en) * | 2021-04-08 | 2021-07-23 | 扬州大学 | Intelligent adjustment and optimization flow guide device for river confluence flow field and application |
| CN113152360B (en) * | 2021-04-08 | 2022-03-11 | 扬州大学 | Intelligent adjustment and optimization flow guide device for river confluence flow field and application |
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Application publication date: 20180202 |
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