CN108343537A - A kind of hydroelectric system that power generation performance simple in structure is good - Google Patents
A kind of hydroelectric system that power generation performance simple in structure is good Download PDFInfo
- Publication number
- CN108343537A CN108343537A CN201810129922.0A CN201810129922A CN108343537A CN 108343537 A CN108343537 A CN 108343537A CN 201810129922 A CN201810129922 A CN 201810129922A CN 108343537 A CN108343537 A CN 108343537A
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- China
- Prior art keywords
- water generating
- generating component
- fixed plate
- deflector
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
-
- 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
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/008—Measuring or testing arrangements
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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
-
- 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
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The present invention provides a kind of hydroelectric system that power generation performance simple in structure is good, including fixed plate and with fixed front edge of board end head position is connected described in this deflector；The one end open in deflector towards outside is big, and the one end open being connected with fixed plate is small；And the connecting portion of fixed plate and deflector is provided with the first demarcation strip for flexibly stopping stream course；The the first water generating component, the second water generating component and third water generating component for carrying out water generating are equidistantly provided in fixed plate；The first water generating component include be set to fixed plate both sides support column and erection be set to the transverse connecting rods of two upper part of the supporting columns, in actual moving process, each first water generating component, the second water generating component and third water generating component are run simultaneously, and it can flexibly adjust specific height, reach different generating effects, this device structure reasonable design, using effect are good.
Description
[technical field]
The present invention relates to hydroelectric system technical field more particularly to a kind of reasonable designs, can carry out high flexible
The good hydroelectric system of the simple power generation performance of structure of adjustment.
[background technology]
New energy refers to the various energy forms except traditional energy, such as solar energy, geothermal energy, wind energy, ocean energy, life
Substance energy and nuclear fusion energy etc..Solar energy is to be released huge nuclear energy by the generation hydrogen helium fusion of solar interior hydrogen atom and generated
, the radiation energy from the sun, for the overwhelming majority of necessary for human energy all directly or indirectly from the sun, plant passes through light
Cooperation release oxygen, absorbing carbon dioxide, and solar energy is transformed into chemical energy stores solar energy in plant and be
A kind of clean reproducible new energy, increasingly has been favored by people, and has extensive effect in people's life, work,
One of them is exactly to convert the solar into electric energy, and solar cell is exactly workable using the sun, and wind energy is earth surface
Kinetic energy caused by large quantity of air flowing, due to ground temperature change difference and water vapor in air after by solar irradiation everywhere
Content is different, thus causes the difference of various regions air pressure, and pressure-air is flowed to low pressure area in the horizontal direction, that is, forms wind, wind
Energy resource is decided by wind energy concentration and accumulation of available wind energy year hourage, and wind energy concentration is obtained by unit front face area
The power of wind, proportional with the cube and atmospheric density of wind speed, wind energy is more next as a kind of clean regenerative resource
More paid attention to by countries in the world, the amount of accumulateing is huge, and global wind energy is about 2.74 × 10-9MW, wherein available wind energy is
2 × 10-7MW, the water energy total amount than that can be developed and used on the earth are also 10 times big.There is an a large amount of river in China, and river
Water velocity is also larger, but some places are not easy to build dam and generate electricity, and in existing technology, are directly placed in river water
Small water conservancy electricity generation system not yet, in river water simultaneously do not have using the power generator of solar energy and wind energy yet.
Based on this, how Collection utilization could be subject to the wind energy in river, those skilled in the art has carried out largely
Research and development and experiment start in terms of the structure of water generating equipment and principle and are improved and improve, and achieve preferably simultaneously
Achievement.
[invention content]
To overcome the problems of prior art, the present invention to provide a kind of reasonable design, high flexible tune can be carried out
The good hydroelectric system of the simple power generation performance of whole structure.
The scheme that the present invention solves technical problem is to provide a kind of hydroelectric system that power generation performance simple in structure is good, wraps
Include fixed plate and with fixed front edge of board end head position is connected described in this deflector；It opens the one end in the deflector towards outside
Mouth is big, and the one end open being connected with fixed plate is small；And it is provided with for spirit in the connecting portion of the fixed plate and deflector
First demarcation strip of blocking stream course living；The fixed plate is provided with relative to the other end of deflector for stopping flow row
Second demarcation strip of journey；Equidistantly be provided in the fixed plate the first water generating component for carrying out water generating,
Second water generating component and third water generating component；The first water generating component includes being set to fixed plate both sides
Support column and erection be set to the transverse connecting rods of two upper part of the supporting columns；It is both provided with and is used for inside each support column
The telescopic drive cylinder that driving transverse connecting rod moves up and down；The drive shaft of the telescopic drive cylinder is connected with transverse connecting rod
It connects；Position is provided with rotating mechanism component among the transverse connecting rod；The rotating mechanism component include rotary drive motor,
Connecting shaft and the blade assembly being connected with the connecting shaft；The rotary drive motor is set to transverse connecting rod top；Even
Spindle and blade assembly are set to transverse connecting rod lower part；Further include being set to the first demarcation strip position, for driving first
Demarcation strip moves up and down the first driving motor controlled flow；Further include being set to the second demarcation strip position, for driving
Dynamic second demarcation strip moves up and down the second driving motor controlled flow；Further include controller, power supply, wireless telecommunications biography
Defeated unit, data storage and alarm；The telescopic drive cylinder, each rotary drive motor, the first driving motor, second drive
Dynamic motor is electrically connected with controller；The first water generating component, the second water generating component and third water generating group
Part structure is identical；And first blade assembly of water generating component, the blade assembly of the second water generating component, third water conservancy hair
The blade assembly volume of electrical component is sequentially reduced；Be provided with outside the controller touch display screen and several control by
Button；Further include the temperature sensor and humidity sensor being set to inside the controller；The intermediate position of the fixed plate,
Each first water generating component, the second water generating component and third water generating component lower part are provided with and are connected with deflector
Matching, the water stream channel that flow channel is provided；It is provided with liquid level sensor in the water stream channel；The liquid level sensor and control
Device processed is electrically connected；It further include the protection cap for being set to water stream channel top；The connecting portion of the fixed plate and deflector,
First separation prelaminar part is provided with the filter screen for being filtered processing to impurity in the water source from outside；And the filter screen
Mesh diameter magnitude range be 1-1.5m；Each first water generating component, the second water generating component and third water conservancy
Electrification component top is both provided with the accumulator cell assembly being electrically connected with rotary drive motor, controller；Further include being set to admittedly
Water quality sensor, PH value detector and the temperature sensor at fixed board bottom surface position；The water quality sensor, PH value detector and
Temperature sensor is electrically connected with controller.
Preferably, the second demarcation strip position of the fixed plate is additionally provided with the flow sense for carrying out flow detection in real time
Survey instrument；The sensing flux instrument is electrically connected with controller.
Preferably, first demarcation strip, the second demarcation strip make for metal material, and thickness range is all 3-5cm.
Preferably, the deflector one end open is big, one end open is small, and the angle of inclination magnitude range of its two opening is
35-45 degree.
Preferably, the touch display screen is capacitive touch display screen.
Compared with prior art, a kind of hydroelectric system that power generation performance simple in structure is good of the present invention by being arranged simultaneously
Fixed plate 11 and the deflector 12 being connected with 11 front end end position of fixed plate described in this, and outwardly by the deflector 12
The one end open of side designs larger, and the one end open being connected with fixed plate 11 is small, in the company of fixed plate 11 and deflector 13
First demarcation strip 13 of the socket part position setting for flexibly stopping stream course, fixed plate 11 are set relative to the other end of deflector 12
The second demarcation strip for stopping stream course is set, the first water for carrying out water generating is equidistantly set up in fixed plate 11
Sharp electrification component 111, the second water generating component 112 and third water generating component 113, in actual moving process, each first
Water generating component 111, the second water generating component 112 and third water generating component 113 are run simultaneously, and can be flexible
The specific height of adjustment, reaches different generating effects, this device structure reasonable design, and using effect is good.
[description of the drawings]
Fig. 1 and Fig. 2 is that a kind of stereoscopic-state structure of the good hydroelectric system of power generation performance simple in structure of the present invention is shown
It is intended to.
[specific implementation mode]
To make the purpose of the present invention, technical solution and advantage be more clearly understood, with reference to the accompanying drawings and embodiments, to this
Invention is further elaborated.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, not
For limiting the invention.
It please refers to Fig.1 and Fig. 2, a kind of hydroelectric system 1 that power generation performance simple in structure is good of the present invention includes fixed plate
11 and the deflector 12 that is connected with 11 front end end position of fixed plate described in this；It opens the one end in the deflector 12 towards outside
Mouth is big, and the one end open being connected with fixed plate 11 is small；And it is provided in the fixed plate 11 and the connecting portion of deflector 13
The first demarcation strip 13 for flexibly stopping stream course；The fixed plate 11 is useful relative to the other end setting of deflector 12
In the second demarcation strip of blocking stream course；First for carrying out water generating is equidistantly provided in the fixed plate 11
Water generating component 111, the second water generating component 112 and third water generating component 113；The first water generating group
Part 111 includes being set to the support column 1117 of 11 both sides of fixed plate and being set to the transverse direction on two support columns, 1117 top to connect
Extension bar 1111；The flexible drive for driving transverse connecting rod 1111 to move up and down is both provided with inside each support column 1117
It takes offence cylinder 1119；The drive shaft of the telescopic drive cylinder 1119 is connected with transverse connecting rod 1111；In the lateral connection
1111 intermediate position of bar is provided with rotating mechanism component 1113；The rotating mechanism component 1113 include rotary drive motor 1115,
Connecting shaft and the blade assembly being connected with the connecting shaft；The rotary drive motor 1115 is set in transverse connecting rod
Portion；Connecting shaft and blade assembly are set to 1111 lower part of transverse connecting rod；Further include being set to 13 position of the first demarcation strip, using
The first driving motor controlled flow is moved up and down in driving the first demarcation strip 13；Further include being set to the second demarcation strip
Position, the second driving motor that flow is controlled for driving the second demarcation strip to move up and down；Further include controller, electricity
Source, wireless communication transmission unit, data storage and alarm；The telescopic drive cylinder 1119, each rotary drive motor,
One driving motor, the second driving motor and controller are electrically connected；The first water generating component 111, the second water generating
Component 112 is identical with third water generating 113 structures of component；And first blade assembly of water generating component 111, the second water conservancy
The blade assembly of electrification component 112, the blade assembly volume of third water generating component 113 are sequentially reduced；In the controller
Outside is provided with touch display screen and several control buttons；It further include the temperature sensor being set to inside the controller
And humidity sensor；In the intermediate position of the fixed plate 11, each first water generating component, the second water generating component and
The water stream channel that three water generating component lower parts are provided with the matching that is connected with deflector 13, provide flow channel；In the water
Liquid level sensor is provided in circulation road；The liquid level sensor is electrically connected with controller；Further include being set on water stream channel
The protection cap in portion；It is provided with for coming in the connecting portion of the fixed plate 11 and deflector 13,13 front of the first demarcation strip
It is filtered the filter screen of processing from impurity in external water source；And the mesh diameter magnitude range of the filter screen is 1-1.5m；
Each first water generating component 111, the second water generating component 112 and 113 top of third water generating component are all arranged
There is the accumulator cell assembly with rotary drive motor 1115, controller electric connection；Further include being set to 11 bottom surface position of fixed plate
Water quality sensor, PH value detector and temperature sensor；Water quality sensor, PH value detector and the temperature sensor with
Controller is electrically connected.
By fixed plate 11 is arranged and is connected with 11 front end end position of fixed plate described in this deflector 12 simultaneously,
And the one end open in the deflector 12 towards outside being designed larger, the one end open being connected with fixed plate 11 is small, solid
Fixed board 11 is used to flexibly stop that the first demarcation strip 13 of stream course, fixed plate 11 to be opposite with the connecting portion setting of deflector 13
The second demarcation strip for stopping stream course is set in the other end of deflector 12, equidistantly sets up and is used in fixed plate 11
The first water generating component 111, the second water generating component 112 and the third water generating component 113 of water generating are carried out, it is real
In the operational process of border, each first water generating component 111, the second water generating component 112 and third water generating component 113 are same
Shi Yunhang, and specific height can be flexibly adjusted, reach different generating effects, this device structure reasonable design uses effect
Fruit is good.
Preferably, the second demarcation strip position of the fixed plate 11 is additionally provided with the flow for carrying out flow detection in real time
Sensing instrument；The sensing flux instrument is electrically connected with controller.
Preferably, first demarcation strip 13, the second demarcation strip make for metal material, and thickness range is all 3-5cm.
Preferably, 13 one end open of the deflector is big, one end open is small, and the angle of inclination magnitude range of its two opening
For 35-45 degree.
Preferably, the touch display screen is capacitive touch display screen.
Compared with prior art, a kind of hydroelectric system 1 that power generation performance simple in structure is good of the present invention by setting simultaneously
The deflector 12 set fixed plate 11 and be connected with 11 front end end position of fixed plate described in this, and by 12 court of the deflector
The one end open in outside designs larger, and the one end open being connected with fixed plate 11 is small, in fixed plate 11 and deflector 13
First demarcation strip 13 of the connecting portion setting for flexibly stopping stream course, the other end of the fixed plate 11 relative to deflector 12
The second demarcation strip for stopping stream course is set, first for carrying out water generating is equidistantly set up in fixed plate 11
Water generating component 111, the second water generating component 112 and third water generating component 113, in actual moving process, each
One water generating component 111, the second water generating component 112 and third water generating component 113 are run simultaneously, and can be flexible
The specific height of adjustment, reach different generating effects, this device structure reasonable design, using effect is good.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within made by modifications, equivalent substitutions and improvements etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (5)
1. a kind of hydroelectric system that power generation performance simple in structure is good, it is characterised in that：Including fixed plate and with described in this
The deflector that fixed front edge of board end head position is connected；The one end open in the deflector towards outside is big, is connected with fixed plate
One end open it is small；And the connecting portion of the fixed plate and deflector is provided with first for flexibly stopping stream course
Demarcation strip；The fixed plate is provided with the second demarcation strip for stopping stream course relative to the other end of deflector；Institute
State the first water generating component, the second water generating component and being equidistantly provided in fixed plate for carrying out water generating
Three water generating components；The first water generating component includes being set to the support column of fixed plate both sides and setting up to be arranged
In the transverse connecting rod of two upper part of the supporting columns；It is both provided with inside each support column and is moved down in transverse connecting rod for driving
Dynamic telescopic drive cylinder；The drive shaft of the telescopic drive cylinder is connected with transverse connecting rod；In the transverse connecting rod
Intermediate position is provided with rotating mechanism component；The rotating mechanism component include rotary drive motor, connecting shaft and with the company
The blade assembly that spindle is connected；The rotary drive motor is set to transverse connecting rod top；Connecting shaft and blade assembly are set
It is placed in transverse connecting rod lower part；Further include being set to the first demarcation strip position, for driving the first demarcation strip to move up and down to water
The first driving motor that stream is controlled；Further include being set to the second demarcation strip position, being moved down on the second demarcation strip for driving
Dynamic the second driving motor that flow is controlled；Further include controller, power supply, wireless communication transmission unit, data storage
And alarm；The telescopic drive cylinder, each rotary drive motor, the first driving motor, the second driving motor and controller electricity
Property connection；The first water generating component, the second water generating component are identical with third water generating modular construction；And first
The blade assembly of the blade assembly of water generating component, the blade assembly of the second water generating component, third water generating component
Volume is sequentially reduced；Touch display screen and several control buttons are provided with outside the controller；Further include being set to
Temperature sensor inside the controller and humidity sensor；In the intermediate position of the fixed plate, each first water generating
Component, the second water generating component and third water generating component lower part are provided with the matching that is connected with deflector, provide flow
The water stream channel of channel；It is provided with liquid level sensor in the water stream channel；The liquid level sensor is electrically connected with controller；
It further include the protection cap for being set to water stream channel top；Before the connecting portion of the fixed plate and deflector, the first demarcation strip
Portion is provided with the filter screen for being filtered processing to impurity in the water source from outside；And the mesh diameter of the filter screen is big
Small range is 1-1.5m；Each first water generating component, the second water generating component and third water generating component top
It is both provided with the accumulator cell assembly being electrically connected with rotary drive motor, controller；Further include being set to fixed plate bottom surface position
Water quality sensor, PH value detector and temperature sensor；Water quality sensor, PH value detector and the temperature sensor with
Controller is electrically connected.
2. a kind of hydroelectric system that power generation performance simple in structure is good as described in claim 1, it is characterised in that：It is described solid
Second demarcation strip position of fixed board is additionally provided with the sensing flux instrument for carrying out flow detection in real time；The sensing flux instrument and control
Device processed is electrically connected.
3. a kind of hydroelectric system that power generation performance simple in structure is good as described in claim 1, it is characterised in that：Described
One demarcation strip, the second demarcation strip make for metal material, and thickness range is all 3-5cm.
4. a kind of good water generating of power generation performance simple in structure as described in any one of claims 1 to 3 claim
System, it is characterised in that：The deflector one end open is big, one end open is small, and the angle of inclination magnitude range of its two opening
For 35-45 degree.
5. a kind of hydroelectric system that power generation performance simple in structure is good as described in claim 1, it is characterised in that：It is described to touch
It is capacitive touch display screen to touch display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129922.0A CN108343537A (en) | 2018-02-08 | 2018-02-08 | A kind of hydroelectric system that power generation performance simple in structure is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129922.0A CN108343537A (en) | 2018-02-08 | 2018-02-08 | A kind of hydroelectric system that power generation performance simple in structure is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108343537A true CN108343537A (en) | 2018-07-31 |
Family
ID=62959135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810129922.0A Pending CN108343537A (en) | 2018-02-08 | 2018-02-08 | A kind of hydroelectric system that power generation performance simple in structure is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538399A (en) * | 2018-11-21 | 2019-03-29 | 江苏科技大学 | A kind of poly- wave refraction multistage wave lens system of floatation type |
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| CN1800626A (en) * | 2005-01-08 | 2006-07-12 | 朱德培 | Energy-saving power station |
| US20120187690A1 (en) * | 2011-01-21 | 2012-07-26 | Walton Randal D | Hydroelectric generators |
| CN103233849A (en) * | 2013-04-01 | 2013-08-07 | 李宏生 | Novel water conservation generating building installing structure |
| CN104747358A (en) * | 2015-03-30 | 2015-07-01 | 耿秀 | Hydroelectric power generation system under river normal state |
| CN105484925A (en) * | 2015-12-03 | 2016-04-13 | 上海煜南信息科技有限公司 | River-water-flow-speed real-time monitoring and transmitting system |
| CN206942922U (en) * | 2017-07-12 | 2018-01-30 | 谢冰冰 | A kind of intelligent hydroelectric system based on classification generation mode |
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2018
- 2018-02-08 CN CN201810129922.0A patent/CN108343537A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800626A (en) * | 2005-01-08 | 2006-07-12 | 朱德培 | Energy-saving power station |
| US20120187690A1 (en) * | 2011-01-21 | 2012-07-26 | Walton Randal D | Hydroelectric generators |
| CN103233849A (en) * | 2013-04-01 | 2013-08-07 | 李宏生 | Novel water conservation generating building installing structure |
| CN104747358A (en) * | 2015-03-30 | 2015-07-01 | 耿秀 | Hydroelectric power generation system under river normal state |
| CN105484925A (en) * | 2015-12-03 | 2016-04-13 | 上海煜南信息科技有限公司 | River-water-flow-speed real-time monitoring and transmitting system |
| CN206942922U (en) * | 2017-07-12 | 2018-01-30 | 谢冰冰 | A kind of intelligent hydroelectric system based on classification generation mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109538399A (en) * | 2018-11-21 | 2019-03-29 | 江苏科技大学 | A kind of poly- wave refraction multistage wave lens system of floatation type |
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Application publication date: 20180731 |