CN108396846A - A kind of deep layer outlet tunnel enters flow through shaft energy dissipating and energy storage device - Google Patents
A kind of deep layer outlet tunnel enters flow through shaft energy dissipating and energy storage device Download PDFInfo
- Publication number
- CN108396846A CN108396846A CN201810227237.1A CN201810227237A CN108396846A CN 108396846 A CN108396846 A CN 108396846A CN 201810227237 A CN201810227237 A CN 201810227237A CN 108396846 A CN108396846 A CN 108396846A
- Authority
- CN
- China
- Prior art keywords
- energy
- shaft
- flow
- storage device
- vertical shaft
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
-
- 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
- F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; 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
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- 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
Abstract
A kind of deep layer outlet tunnel of present invention offer enters flow through shaft energy dissipating and energy storage device, and flow is entered potential energy and kinetic energy storage possessed by vertical shaft using in deep layer tunnel drainage system.It is the energy conversion device for water collection sheet at one being set in the shaft, the flow for entering vertical shaft being concentrated to vertical shaft side, flow by impacting runner bucket after water collection sheet by driving runner rotation, recycle two bevel gears that shaft is driven power transmission main axis, power transmission main shaft can extend to Shaft bank, and power transmission main shaft connects through the running of gear near well head with gear pump to achieve the purpose that store hydraulic energy.The present invention is based on the operation principles of the conservation of energy, will be stored by this portion of energy of vertical shaft, to provide energy when being run for whole system, and have both effect of energy dissipation.
Description
Technical field
The present invention relates to city deep layer tunnel drainage technical fields, and in particular to vertical shaft become a mandarin flow energy dissipating and energy storage dress
It sets, can and reach energy dissipating and energy storage purpose for the energy for entering the flow of vertical shaft to be converted to mechanical-hydraulic.
Background technology
With the quickening of Urbanization in China, waterlogging that traditional cities construction mode is brought takes place frequently, runoff pollution aggravation,
The prominent rainwater problems such as water resource utility model, water ecological environment deterioration, it has also become restrict one of restrictive factor of social development.
Today that environmental bearing capacity is increasingly saturated, building " sponge city " becomes the necessity of current Chinese society development.For
It is special that down town city Water Surface Ratio is low, site coverage is high, underground utilities are intricate, densely populated and Safety of Flood Control pressure is big etc.
Point is aided with source diameter flow control using Large Deep tunnel of regulating and storing as backing engineering, becomes and solves urban waterlogging and just
The effective means of rain pollution.
In order to avoid the influence to facilities such as underground utilities and subways, deep layer tunnel outlet tunnel of regulating and storing in city is generally built
It is located in the ground at 40m-60m, when heavy rain occurs, a large amount of rainwater that ground is collected flow into subterranean tunnel by entering flow through shaft, deposit
Store up part rainwater.The shaft height that thus becomes a mandarin is higher, if flow is directly directly fallen into from shaft top to silo bottom, flow
Potential energy be converted to kinetic energy, very big impact will necessarily be generated to silo bottom, destroy shaft structure, cause to generate in vertical shaft
Vibration and is carried under one's arms the problems such as bulk gas enters tunnel noise, and the safe operation of engineering is influenced.In order to solve the energy dissipating of flow
Problem usually builds energy-dissipating structure, such as traditional hipped plate construction, chute type structure, ladder in the shaft at present in engineering
Formula structure etc., when flow flows through these structures, energy dissipates, to achieve the purpose that energy dissipating.But such energy dissipating is arranged
It applies and is on the one hand easy the waterpower flow phenomenon for occurring the Various Complexes such as vortex, cavitation and cavitation corrosion, aerated flow in vertical shaft, simultaneously
The structure built in the shaft is washed away by flow, brings excessive structural vibration problem, threatens structure safety.In addition, entering
Flow through shaft is higher, and the drop of flow is larger, has more potential energy, how to utilize this portion of energy, enter in current city depth tunnel
In the design of flow through shaft, do not occur similar idea and structure also.The present invention proposes and devises a kind of novel deep tunnel system
Script is leaned on the energy that vertical shaft energy-dissipating structure dissipate, led to by the shaft structure that becomes a mandarin of uniting under the premise of ensureing that flow flows into safely
It crosses novel device and is converted to mechanical energy, and then be converted to hydraulic energy and store, for mechanical device, such as lock in deep tunnel system
The energy supply of the equipment such as door, maintenance elevator.
Invention content
Goal of the invention：Current deep layer tunnel is regulated and stored in drainage system, and the flow for entering flow through shaft mostly uses greatly simple disappear
Destruction of the energy measure to avoid flow to vertical shaft, but therefore the part flow energy is also wasted, to overcome current vertical shaft to disappear
Disadvantage present in energy can be used for the present invention is directed to be mechanical-hydraulic energy by the energy storage of vertical shaft flow for the draining system that regulates and stores
The operation of the components such as each section gate provides energy in system.
Technical solution：In order to solve the above technical problems, deep layer outlet tunnel provided by the invention enters flow through shaft energy dissipating and storage
Energy device, includes collecting system, energy conversion device and transmission system in vertical shaft, and the collecting system includes one piece
The first surface and first surface formed along vertical shaft diametrical draw by parabola is tangent for flow to be led to runner in junction
Plane water collection sheet of the blade far from shaft side, the second curved surface formed along half of circular sweep of vertical shaft by parabola, and with second
The cylindrical surface that curved surface connects for guiding flow；The energy conversion device has semicircle blade；The transmission system includes
Bevel gear and power transmission main shaft, for coupling energy conversion device and energy storage device.
Specifically, the energy storage device is gear pump, and the semicircle blade is spaced 45 ° of evenly distributed, institutes in shaft
State the both ends that bevel gear is symmetrically arranged at shaft.
Specifically, water collection sheet is curvature portion of the parabola after linear stretch inside vertical shaft far from mainstream side,
Water collection sheet close to mainstream side is the curved surface that parabola is obtained along half of vertical shaft section circumference sweeping, to reduce flow from vertical shaft
To the percussion of water collection sheet when well head flows down.Wherein close to mainstream side, water collection sheet primarily serves and prevents flow along vertical shaft side wall
It flows down, prevents larger filter loss, it is direct along vertical shaft inner wall with larger flow velocity without runner energy dissipating to be also prevented from flow
It flows down and generates more serious destruction to deep tunnel.
Specifically, the part at water collection sheet nozzle by one piece with far from mainstream side water collection sheet in tangent flat in joint
The curved surface of face and one piece of semicolumn side surrounds.As far as possible by flow under the premise of guarantee vertical shaft certain conveyance capacity
The side far from shaft is guided into, to which countershaft generates torque as big as possible.
Specifically, water collection sheet nozzle has certain height, ensures can there is preferable fluidised form by the flow of nozzle,
When flow after water collection sheet nozzle falling on runner bucket of can more smoothing out of flow.
Specifically, runner bucket shape is semicircle, and blade edge keeps certain safe distance with vertical shaft inner wall, prevents leaf
Piece causes accident due to expanding with heat and contract with cold or with vertical shaft inner wall frictional impact occurs for the reasons such as blastic deformation.
Specifically, runner bucket be configured as it is plate, according to the energy conservation equation of runner：
Wherein：γ is the unit weight of water, QeFor by the flow of runner, V indicated respectively with r the speed vertical with blade with to stress
Arm, subscript 1,2 indicate the angular speed of runner rotated into out position, ω expression runners respectively.
Shown in attached drawing 5, flow by when water collection sheet 3 under the action of water collection sheet 3 flow have with away from water export most
The vertical speed of nearly runner bucket, at this time part flow hit with above-mentioned blade, remaining flow is under the effect of gravity
Flow velocity direction, which gradually becomes, to be approached straight down, at this time the part flow and next piece of blade（Refer to and presses the above-mentioned leaf of clock-wise order
Next piece of blade of piece）It hits, water velocity direction is equally close vertical with this block blade at this time, that is, uses plate blade
When, it can make under the correcting of flow gravityV u1 Higher value is kept, and after flow and runner bucket are hit, water
Stream outflow direction is basically parallel to direction blade, therefore may make using plate bladeV u2 Keep smaller value.According to the conservation of energy,
His parameter is all fixed value, therefore the efficiency highest that may make energy to convert when use plate blade.
Specifically, the bevel gear reference cone angle of two power transmissions is 90o, and the rotation of shaft in the horizontal direction is converted to power transmission
The rotation of main shaft in the vertical direction, the gear being transferred to rotatory force by power transmission main shaft intermal force near Shaft bank
Pump drives gear pump work to realize the recycling of flow energy.
The displacement of device shaft when in order to adapt to location tolerance and operation, the transmission main shaft can be more by what is be connected with each other
Duan Zucheng is coupled to each other by yielding coupling.
In use, the present invention utilizes water by the way that the flow for entering vertical shaft is concentrated to vertical shaft side using four pieces of water collection sheets
The gravity of stream and possessed kinetic energy drive the rotation of the energy conversion device runner below water collection sheet, to pass through two by shaft
A bevel gear changes rotation direction, to drive the rotation of power transmission main shaft.In addition, power transmission main shaft can have higher height（It stretches
Go out to Shaft bank）, head of the power transmission main shaft at well head connects with gear pump is stored as hydraulic pressure to reach by flow energy
The purpose of energy.Catchmenting, Board position can rationally be determined according to the water flow impact pressure and shaft height that water collection sheet can bear, to prevent
Only water collection sheet causes water collection sheet by larger impact apart from well head is too far.
Advantageous effect：In past scheme, by the flow of vertical shaft only by other energy-dissipating installations to prevent water stream
Destruction to vertical shaft and tunnel, but therefore the energy of flow also wastes.The energy storage of vertical shaft flow is mechanical liquid by the present invention
Pressure energy, overboard kinetic energy is absorbed and dump, avoids this portion of energy and forms water hammer in underground piping, while to regulate and store
The operation of the components such as each section gate provides energy in drainage system.
Description of the drawings：
Fig. 1 is that the present invention is used for the water collection sheet structure top view of concentrated flow on vertical shaft top；
Fig. 2 is that the present invention is used for water collection sheet the structure left view of concentrated flow on vertical shaft top；
Fig. 3 is overall structure cross-sectional view of the present invention；
Fig. 4 is overall structure front view of the present invention；
Fig. 5 is bevel gear partial enlarged view of the present invention in device main shaft and power transmission main shaft junction；
Fig. 6 is present invention overall structure diagram inside vertical shaft；
In figure label for：First water collection sheet 1, the second water collection sheet 2, third water collection sheet 3, the 4th water collection sheet 4, impact type water runner blade
Piece 5, the first bevel gear 6, the second bevel gear 7, shaft 8, power transmission main shaft 9, gear pump 10, vertical shaft inner wall 11.
Specific implementation mode：
Embodiment:
The energy dissipating of the vertical shaft that is applied to catchment of the present embodiment and the concrete structure of energy storage device are as shown in Figs. 1-5.Including the first collection
Water plate 1, the second water collection sheet 2, third water collection sheet 3, the 4th water collection sheet 4, impact type water runner bucket 5, the first bevel gear 6, second
Bevel gear 7, shaft 8, power transmission main shaft 9 and gear pump 10.
Wherein, the first water collection sheet 1 is curvature portion of the parabola after linear stretch inside vertical shaft, is primarily served anti-
Sealing stream is flowed down along vertical shaft side wall, prevents larger filter loss, is also prevented from flow without runner energy dissipating with larger stream
Speed directly flows down along vertical shaft inner wall and generates more serious destruction to deep tunnel.
Second water collection sheet 2 is the curved surface that parabola is obtained along half of vertical shaft section circumference sweeping, to reduce flow from vertical shaft
To the percussion of water collection sheet when well head flows down.
Third water collection sheet 3 is far from the mainstream side water collection sheet plane tangent in joint, and the 4th water collection sheet 4 is one and half
The curved surface of cylindrical side.Direct water flow towards one far from shaft as far as possible under the premise of guarantee vertical shaft certain conveyance capacity
Side, to which countershaft generates torque as big as possible.
First water collection sheet 1, the second water collection sheet 2, third water collection sheet 3 and the 4th water collection sheet 4 collectively constitute collecting system.
The shape of impact type water runner bucket 5 is semicircle, and blade edge keeps certain safe distance with vertical shaft inner wall 11,
Prevent blade from causing accident due to expanding with heat and contract with cold or with vertical shaft inner wall frictional impact occurs for the reasons such as blastic deformation.
The first bevel gear 6 to connect with shaft, the second bevel gear 7 and the composition of power transmission main shaft 9 that connect with power transmission main shaft pass
Dynamic system, will horizontally rotate the rotation for the power transmission main shaft for being converted to vertical direction.
As shown in fig. 6, flow is after pithead position flows into vertical shaft, in the first water collection sheet 1 far from mainstream side when use
Flow is led into vertical shaft side under the action of the second water collection sheet 2 of mainstream side, with the first water collection sheet 1 in junction phase
The third water collection sheet 3 that flow is led to close side wall is cut, and the guiding flow that connects with the second water collection sheet 2 perpendicular to horizontal plane
Flow is led into the farthest position of runner bucket middle-range shaft under the effect of contraction of 4th water collection sheet 4, flow drives impact type water
Runner bucket 5 and shaft 6 rotate, and the rotation of power transmission main shaft 9 is driven under the action of the first bevel gear 6 and the second bevel gear 7,
Power transmission main shaft 9 directly connects with gear one of in gear pump 10, by the running of gear pump to which energy to be stored as
Hydraulic energy.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is instruction or implies that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is instruction or implies relative importance.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied, in the range of the principle of the present invention and technological thought, to this
A little embodiments carry out a variety of variations, modifications, equivalent substitutions and improvements etc., should all be included in the protection scope of the present invention.
Claims (5)
- Include collecting system in vertical shaft, energy 1. a kind of deep layer outlet tunnel enters flow through shaft energy dissipating and energy storage device Conversion equipment and transmission system, it is characterised in that：The collecting system includes one piece of first surface formed along vertical shaft diametrical draw by parabola, is being connect with first surface Locate it is tangent for by the flow plane water collection sheet far from shaft side that leads to runner bucket, by parabola along half of circular sweep of vertical shaft The second curved surface formed, and the cylindrical surface for guiding flow that connects with the second curved surface；The energy conversion device has semicircle blade；The transmission system includes bevel gear and power transmission main shaft, for coupling energy conversion device and energy storage device.
- 2. a kind of deep layer outlet tunnel according to claim 1 enters flow through shaft energy dissipating and energy storage device, it is characterised in that：Institute It is gear pump to state energy storage device.
- 3. a kind of deep layer outlet tunnel according to claim 2 enters flow through shaft energy dissipating and energy storage device, it is characterised in that：Institute State semicircle blade be spaced in shaft 45 ° it is evenly distributed.
- 4. a kind of deep layer outlet tunnel according to claim 3 enters flow through shaft energy dissipating and energy storage device, it is characterised in that：Institute State the both ends that bevel gear is symmetrically arranged at shaft.
- 5. a kind of deep layer outlet tunnel according to claim 4 enters flow through shaft energy dissipating and energy storage device, it is characterised in that：Institute Collecting system is stated for guiding flow to smoothly arrive at runner bucket as far as possible far from shaft side, to which countershaft generation is larger Moment loading, utilize the gravity of flow and possessed kinetic energy to drive turning for energy conversion device runner below water collection sheet Dynamic, shaft drives the bevel-gear rotating of its end, bevel gear to lead to power transmission main shaft and drive gear pump work, passes through the running of gear pump The energy of flow is converted into mechanical-hydraulic energy, vertical shaft flow energy is recycled while energy dissipating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227237.1A CN108396846B (en) | 2018-03-20 | 2018-03-20 | Deep drainage tunnel inflow shaft energy dissipation and energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227237.1A CN108396846B (en) | 2018-03-20 | 2018-03-20 | Deep drainage tunnel inflow shaft energy dissipation and energy storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108396846A true CN108396846A (en) | 2018-08-14 |
| CN108396846B CN108396846B (en) | 2020-07-14 |
Family
ID=63093002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810227237.1A Active CN108396846B (en) | 2018-03-20 | 2018-03-20 | Deep drainage tunnel inflow shaft energy dissipation and energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108396846B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052723A (en) * | 1989-12-18 | 1991-07-03 | 刘小泉 | Flexible wind-driven generator |
| US20080211232A1 (en) * | 2007-03-01 | 2008-09-04 | Helfrich Jim C | Water current powered motor |
| JP2013189969A (en) * | 2012-03-12 | 2013-09-26 | Shoei:Kk | Vertical channel type cross flow turbine |
| CN204511751U (en) * | 2014-12-27 | 2015-07-29 | 陈积瞻 | A kind of impact water bucket type sewage generating illuminating system |
| CN106894940A (en) * | 2015-12-18 | 2017-06-27 | 张家界航空工业职业技术学院 | A kind of TRT in waterworks exit |
| CN107419772A (en) * | 2017-08-17 | 2017-12-01 | 任静 | A kind of agricultural rainwater-collecting and the device to generate electricity |
-
2018
- 2018-03-20 CN CN201810227237.1A patent/CN108396846B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052723A (en) * | 1989-12-18 | 1991-07-03 | 刘小泉 | Flexible wind-driven generator |
| US20080211232A1 (en) * | 2007-03-01 | 2008-09-04 | Helfrich Jim C | Water current powered motor |
| JP2013189969A (en) * | 2012-03-12 | 2013-09-26 | Shoei:Kk | Vertical channel type cross flow turbine |
| CN204511751U (en) * | 2014-12-27 | 2015-07-29 | 陈积瞻 | A kind of impact water bucket type sewage generating illuminating system |
| CN106894940A (en) * | 2015-12-18 | 2017-06-27 | 张家界航空工业职业技术学院 | A kind of TRT in waterworks exit |
| CN107419772A (en) * | 2017-08-17 | 2017-12-01 | 任静 | A kind of agricultural rainwater-collecting and the device to generate electricity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108396846B (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2770390C (en) | Shaft power plant | |
| CA2777313A1 (en) | Shaft power plant | |
| CN205000307U (en) | Joint energy dissipation facility of bank formula at bottom of cascaded - spiral reverse rotation | |
| GB2494585A (en) | Wind/water turbine with rotational resistance reduced by wind vane blade | |
| CN105133555B (en) | Step type and spiral reverse rotation bottom sill type combined energy dissipation facility and energy dissipation method | |
| CN206204986U (en) | A kind of civil construction retaining wall structure | |
| CN204418209U (en) | The anti-sinking of wind resistance square strengthens and increases steady type photovoltaic bracket foundation structure | |
| CN108518242B (en) | A kind of vertical shaft energy dissipating and energy storage device based on crank connecting link power transmission | |
| CN108590921A (en) | Deep layer outlet tunnel enters flow through shaft multilevel energy retracting device | |
| CN107524219A (en) | Town road intelligent drainage system | |
| CN105297675B (en) | Mechanical lever-type pressure generation system on overflow dam | |
| CN108396846A (en) | A kind of deep layer outlet tunnel enters flow through shaft energy dissipating and energy storage device | |
| CN108590922A (en) | Vertical shaft energy recycle device based on chain structure power transmission and method | |
| CN106602980A (en) | Desert land root-type photovoltaic panel solar power generation device | |
| CN204175507U (en) | Small-sized assembled hydroelectric installation | |
| CN206092276U (en) | Sponge city building downspout power generation system | |
| CN205421163U (en) | Water conservancy construction slope protection structure | |
| KR101415511B1 (en) | Wind turbines for wind-induced structures in facilities | |
| CN1757909A (en) | Power generating system of river running water surface | |
| CN2931837Y (en) | Longitudinal dam channel type hydraulic turbine | |
| CN205117593U (en) | Outer municipal power generating equipment of high -rise building | |
| CN106089551B (en) | A kind of water stream power electric generating apparatus | |
| CN106869093A (en) | Mechanical lever-type pressure power-generating system on overfall dam | |
| CN202519640U (en) | River connection type power station | |
| JP2009127427A (en) | Power generation water turbine and power generation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |