CN208702596U - A kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine mode - Google Patents
A kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine mode Download PDFInfo
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- CN208702596U CN208702596U CN201821207721.XU CN201821207721U CN208702596U CN 208702596 U CN208702596 U CN 208702596U CN 201821207721 U CN201821207721 U CN 201821207721U CN 208702596 U CN208702596 U CN 208702596U
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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
- 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
The utility model relates to a kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine mode, including intake chamber, chopped-off head radial guide vane, chopped-off head runner, at least one level secondary interstage flow road formula guide vane and corresponding stage ultra-low specific speed runner, water-supplying chamber, main shaft, bearing and casing, bearing centre is provided with main shaft, chopped-off head runner is sequentially arranged on main shaft from top to bottom, guide vane and matched runner between at least one level secondary grade, guide vane is the identical flow channel type guide blade of structure between grades at different levels, flume is connected through first-level guide blade with chopped-off head runner, chopped-off head runner is connected through secondary interstage flow road formula guide vane with the runner of corresponding stage, successively sequentially analogize, final stage runner is connected with water-supplying chamber, the utility model structure is simple, it is stable, securely and reliably, efficiently, use scope is wide, suitable for medium-small flow, middle high overbottom pressure Utilization power, energy conservation and environmental protection are efficiently using the innovation in water energy or recycling complementary energy equipment, and economic and social benefit is huge.
Description
Technical field
The utility model relates to the hydraulic turbine, especially a kind of hydraulic turbine with flow channel type guide blade based on hydraulic turbine mode
Runner.
Background technique
Currently, most of invert for remaining recoverable hydraulic turbine frequently with multistage pump, since turbine fortune is made in pump reversion
When row, inlet and outlet are reversed, and therefore, these press the turbine of pump condition design, big, the effect when losing than pump condition operation
Rate is low, and efficient operating regime is narrow, and stability is poor.Complementary energy recovery efficiency is low, leads to the secondary waste of the energy, therefore it is saturating to improve fluid power
Flat complementary energy recovery efficiency is particularly important.And the hydraulic turbine is conventional prime mover of water power calculation, operational efficiency is often than pump
The efficiency for making hydraulic turbine is much higher, and efficient operating regime is wide, and stability is good, is considered based on this point, it is necessary to design out
The hydraulic turbine for turbine mode of flooding.In addition, the complementary energy recovery efficiency of hydraulic turbine depends not only on efficient runner, it is also necessary to
Runner adaptable therewith is developed, to improve hydraulic turbine entirety complementary energy recovery efficiency.In addition, due to being limited by topology layout
System, hydraulic turbine runner also require compact-sized, stable and reliable operation.Therefore, it is necessary to design and develop out and hydraulic turbine mode liquid
Power turbine and its adaptable runner, but so far there are no the open of the hydraulic turbine runner of hydraulic turbine mode is reported.
Utility model content
For above situation, for the defect for overcoming the prior art, the purpose of the utility model is just to provide a kind of based on water
The hydraulic turbine runner with flow channel type guide blade of turbine mode can effectively solve reversion pump-type hydraulic turbine low efficiency, high efficient district
Problem narrow, stability is poor.
The technical solution that the utility model solves is a kind of liquid with flow channel type guide blade based on hydraulic turbine mode
Power turbine runner, including intake chamber, chopped-off head radial guide vane, chopped-off head runner, at least one level secondary interstage flow road
Formula guide vane and corresponding stage ultra-low specific speed runner, water-supplying chamber, main shaft, bearing and casing, bearing centre are provided with main shaft, on main shaft
It is sequentially arranged with guide vane and matched runner between chopped-off head runner, at least one level secondary grade, guide vane between grades at different levels from top to bottom
It is the identical flow channel type guide blade of structure, flume is connected through first-level guide blade with chopped-off head runner, and chopped-off head runner is through between secondary grade
Flow channel type guide blade is connected with the runner of corresponding stage, successively sequentially analogizes, and final stage runner is connected with water-supplying chamber, and water flow is by diversion
Room by smooth in water flow and it is axisymmetric guide first-level guide blade into, circular rector required for chopped-off head runner is formed as first-level guide blade, into head
Grade runner, then interstage flow road formula guide vane of the chopped-off head runner through being connected enters the low-specific-speed mixed-flow fluid power of hydraulic turbine mode
Turbine runner, successively sequentially analogizes, and last water flow is discharged by the water-supplying chamber being connected with final stage runner, and stream is constituted together with casing
The hydraulic turbine runner of road formula guide vane.
The utility model structure is simple, novel and unique, has high complementary energy recovery efficiency and high head Utilization ability, with
Generator direct connection, apparatus is high-efficient, stable, safe and reliable, efficient, and use scope is wide (working face is wide), is suitable for
Medium-small flow, middle high overbottom pressure (head) utilization power, energy conservation and environmental protection are efficiently to utilize the wound in water energy or recycling complementary energy equipment
Newly, economic and social benefit is huge.
Detailed description of the invention
Fig. 1 is the structural profile main view of the utility model；
Fig. 2 is the first-level guide blade top view of the utility model；
Fig. 3 is the main view of the low-specific-speed mixed-flow hydraulic turbine runner of the hydraulic turbine mode of the utility model；
Fig. 4 is the main view of the interstage flow road formula guide vane of the utility model.
Specific embodiment
It elaborates below in conjunction with attached drawing and concrete condition to specific embodiment of the present utility model.
As shown in Figs 1-4, a kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine mode of the utility model,
Including intake chamber, chopped-off head radial guide vane, chopped-off head runner, at least one level secondary interstage flow road formula guide vane and corresponding stage Ultra-low Specific
Revolving speed runner, water-supplying chamber, main shaft, bearing and casing, 8 center of bearing are provided with main shaft 7, are sequentially arranged with from top to bottom on main shaft 7
Guide vane 4 and matched runner 5 between chopped-off head runner 3, at least one level secondary grade, guide vane is that structure is identical between grades at different levels
Flow channel type guide blade, flume 1 are connected through first-level guide blade 2 with chopped-off head runner 3, and chopped-off head runner 3 is through secondary interstage flow road formula guide vane 4
It is connected with the runner 5 of corresponding stage, successively sequentially analogizes, final stage runner is connected with water-supplying chamber 6, and water flow is by flume 1 by water
Flow it is smooth and it is axisymmetric guide first-level guide blade 2 into, circular rector required for chopped-off head runner 3 is formed as first-level guide blade 2, into chopped-off head turn
Wheel 3, then interstage flow road formula guide vane 4 of the chopped-off head runner 3 through being connected enters the low-specific-speed mixed-flow fluid power of hydraulic turbine mode
Turbine runner 5, successively sequentially analogizes, and last water flow is discharged by the water-supplying chamber 6 being connected with final stage runner, with casing 9 together structure
At the hydraulic turbine runner of flow channel type guide blade.
In order to guarantee using effect and easy to use,
The flume 1 be circle cross section scroll casing shape, be gradually reduced from import to Outlet Section area, constitute water flow from into
Uniform reduction structure of the mouth to flow between outlet.
The first-level guide blade 2 be radial guide vane, guidance water flow enter chopped-off head runner 3 before, formed chopped-off head runner 3 into
The necessary circular rector of mouth, while the pillar as the seat ring being connected with spiral case, play a supportive role.
The chopped-off head runner 3 is identical with low-specific-speed mixed-flow hydraulic turbine 5 structures of runner of hydraulic turbine mode, is
The low-specific-speed francis turbine runner of hydraulic turbine mode, runner channel become axial from import to outlet by radial, are by crown, leaf
Piece, lower ring are constituted, the inlet angle of runner bucket ~, revolving speed is 60~70r/min.
The interstage flow road formula guide vane 4 is that every two front and back guide blade and transitional region are respectively formed independent runner, is not had
Have public mixing runner, reduce interfering with each other between each guide vane, improve hydraulic performance, water flow by chopped-off head runner 3 outlet
The return guide vane for flowing to interstage flow road formula guide vane 4, then flows into corresponding guide vane, guides by guide vane and forms secondary runner
Required circular rector, enters back into secondary runner, and guide vane outlet diameter is that the low-specific-speed mixed-flow fluid power of hydraulic turbine mode is saturating
The overall diameter of flat turn wheel 5 adds 2-10mm, and guide vane overall diameter is 1.3-1.5 times of guide vane outlet diameter, guide vane outlet
Height is equal with runner inlet height, and return guide vane height is 1.5-1.8 times of guide vane outlet height, return guide vane inlet diameter and
Runner mouth diameter is identical, and the right way wheel angle of outlet is identical as runner inlet angle, return guide vane inlet angle and the runner water flow normal direction angle of outlet
It is identical, it is 90 °.
The water-supplying chamber 6 is scroll casing type annular water-supplying chamber, and ring section is consistent with spiral case section cross-sectional area, outlet
Area is consistent with spiral case inlet area, and the water-supplying chamber 6 is connected with final stage runner, and effect is made at final stage outlet of rotary wheel
Flow energy decrease, thus the energy difference before and after increasing runner, recycle the remaining flow energy of a part.
The revolving speed of the main shaft 7 is 1500-3000r/min, directly drive blower or pump operation, or is sent out with generator direct connection
Electricity improves reliability, the stability of equipment, reduces operation and maintenance expense without installing speed reducer additional.
The turbine runner be it is vertical or horizontal, be integrally formed structure with casing 9.
The also interchangeable work " liquid stream " of " water flow ".
The utility model includes water inlet member (spiral case and first-level guide blade), chopped-off head runner, extremely it can be seen from above structure
Few level-one interstage flow road formula guide vane and the low-specific-speed francis turbine runner of corresponding stage hydraulic turbine mode, water-supplying chamber, bearing, main shaft and
Casing.Its turbine runner is developed by hydraulic turbine mode.The concept of water-flow distribution is through entire hydraulic turbine and its runner
Flow energy when water flow flows through hydraulic turbine, by the change of its circular rector, is passed to runner by waterpower development process, becomes to turn
The rotating mechanical energy of wheel drives electrical power generators by hydraulic turbine main shaft or drives fan operation or pump operation；Hydraulic turbine is corresponding
Water inlet member, guide vane and water-supplying chamber be all satisfied its runner circular rector variation needs, therefore, the development of flow passage components except runner
Also to consider according to the requirement of circular rector, this be the key that hydraulic turbine mode hydraulic turbine and its runner the Hydraulic Design and its with
Invert the important difference of pump type hydraulic turbine.
The runner of the hydraulic turbine of the utility model starts from the import of flume, and flume is circle cross section spiral case, develops
Principle be from import to outlet between uniform flow reduce, cross-sectional area is gradually reduced, and can form necessary circular rector.Water flow is by drawing
After water chamber forms necessary circular rector, first-level guide blade is flowed into, the function of first-level guide blade is guidance fluid evenly into chopped-off head fluid power
The runner of turbine, and generate the water-flow distribution of runner need of work.The first-level guide blade of the utility model is radial guide vane, guidance
Water flow forms runner import circular rector, while the pillar as the seat ring being connected with spiral case.Water flow is formed first via first-level guide blade
After circular rector needed for grade runner, chopped-off head runner is flowed into, water flow drives the acting of chopped-off head runner, then via chopped-off head outlet of rotary wheel flow direction time
Guide vane between grade grade.Guide vane is flow channel type guide blade between the grades at different levels of the utility model, its main feature is that the positive and negative guide vane of every two and mistake
Cross region and be respectively formed independent runner, not public blending space, thus interfering with each other between reducing each guide vane, have compared with
Good hydraulic performance；It is the fluid transmitted between front stage runner that it, which is acted on, i.e., the water flow of previous stage outlet of rotary wheel is concentrated
To require to be sent into next stage runner according to the circular rector of turbine need of work and direction.The chopped-off head runner and rear class of the utility model turn
Wheel is hydraulic turbine mode low-specific-speed francis turbine runner, and runner channel becomes axial including upper from import to outlet from radial
Hat, blade, lower ring composition；Its runner ~(For the inlet angle of blade, i.e., vane airfoil profile bone line is at water inlet side
Tangent line and circumferencial direction angle), unit speed n11Between=60 ~ 70r/min, blade is more straight, and bending is smaller,
Blade passage is shorter, belongs to low-specific-speed francis turbine runner.It is further characterized in that specific discharge is in 0.2 ~ 0.3m3/s;Turn
It is high to take turns hydraulic efficiency, up to 96% or more.Water flow most afterwards through final stage outlet of rotary wheel, flows to water-supplying chamber, finally flows via water-supplying chamber
Out.The water-supplying chamber of the utility model is annular water-supplying chamber, keeps corresponding consistent with spiral case section cross-sectional area by its ring section,
Discharge area is consistent with spiral case inlet area, and water-supplying chamber is connected after final stage runner and with final stage runner, and effect is
Guidance water flow leaves hydraulic turbine and recycles the part flow energy at final stage outlet of rotary wheel, improves the complementary energy recycling of hydraulic turbine
Efficiency.
The course of work of the hydraulic turbine runner of the utility model are as follows: the high pressure liquid of flume is flowed into from flume import
Body after forming certain water-flow distribution, passes through after first-level guide blade forms necessary water-flow distribution, flows into the acting of chopped-off head runner,
The return guide vane for axially flowing into secondary interstage flow road formula guide vane via chopped-off head outlet of rotary wheel to the water flow after the acting of chopped-off head runner, flows through
The water flow of return guide vane enters guide vane in an appropriate direction, after guidance water flow forms necessary circular rector, flows into secondary runner acting,
Via the axial outflow runner of secondary outlet of rotary wheel, so sequentially, only to the end the water flow of axial outflow final stage outlet of rotary wheel via
Hydraulic turbine is flowed out in water-supplying chamber.Rotating mechanical energy caused by the runners at different levels of the utility model is exported by main shaft, and main shaft turns
Speed is 1500-3000r/min, can directly drive blower or pump operation, can also be generated electricity with generator direct connection without installing additional
Speed reducer improves reliability, the stability of equipment, reduces the operation and maintenance cost of equipment.
The utility model uses in structure, and the secondary fluid power of chopped-off head hydraulic turbine, at least one level is sequentially arranged on main shaft
Turbine and the water-supplying chamber being connected with final stage hydraulic turbine；Chopped-off head hydraulic turbine includes chopped-off head hydraulic turbine runner and mutually fits therewith
The spiral case and first-level guide blade for circular rector needed for guiding water flow and forming chopped-off head runner answered；Secondary hydraulic turbine includes and chopped-off head
Interstage flow road formula guide vane rotaring wheel structure identical secondary runner and matched therewith；The water-supplying chamber being connected with final stage hydraulic turbine
Water flow is drawn into hydraulic turbine；Entire hydraulic turbine and casing form complete hydraulic turbine runner.
The energy transfer process of the utility model are as follows: high pressure water flow is flowed into from flume import, under the action of flume
After forming certain water-flow distribution, chopped-off head radial guide vane is passed through, after forming necessary water-flow distribution, chopped-off head runner is flowed into and does
The pressure energy of function, high pressure water flow does work to chopped-off head runner, is converted to the rotating mechanical energy of runner, then water flow is via chopped-off head runner
The axial return guide vane for flowing into interstage flow road formula guide vane in outlet, the water flow for flowing through return guide vane flows into corresponding guide vane, in guide vane
Guidance under, after water flow forms circular rector required for secondary runner, flow into secondary runner acting, the pressure energy of water flow continued to turn
The rotating mechanical energy for changing runner into axially flows out runner via secondary outlet of rotary wheel, so sequentially analogizes, only axial to the end to flow
The water flow of final stage outlet of rotary wheel flows out hydraulic turbine via water-supplying chamber out.The rotating mechanical energy of runner is exported via main shaft, main shaft
Revolving speed be 1500-3000r/min, blower or pump operation can be directly driven, or slow down without installing additional with generator direct connection
Device improves unit efficiency, reduces equipment maintenance cost, also improves the reliability of equipment.
It is circle cross section spiral case that the effect of flow passage components and feature, which are the shape of the flume, in the utility model.Diversion
The design principle of room be from import to outlet between uniform flow reduce, cross-sectional area is gradually reduced.The first-level guide blade is radial
Formula guide vane, import circular rector needed for forming chopped-off head runner while for guiding water flow to enter chopped-off head runner, moreover it is possible to as seat ring
Pillar plays a supportive role.Flow channel type guide blade is further characterized in that, guide vane outlet diameter D3=D1+ (2~10mm), stator external diameter
D4=(1.3~1.5) D3, guide vane exit guide blade height b3 take, i.e. b3=b1 identical as runner inlet height b1, and return guide vane is high
B4=(1.5~1.8) b3 is spent, return guide vane inlet diameter D6 takes identical as discharge diameter of runner, takes the guide vane angle of outlet and runner
Inlet angle is identical, and return guide vane inlet angle value is identical as the runner water flow normal direction angle of outlet, takes 900。
The chopped-off head runner and secondary runner are the low-specific-speed francis turbine runner of hydraulic turbine mode, runner channel from into
Mouth becomes axial to outlet from radial, including crown, blade, lower ring composition.Runner ~(For blade into
The angle of the tangent line and circumferencial direction of bicker, i.e. vane airfoil profile bone line at water inlet side), unit speed n11=60~70r/
Between min, blade is more straight, and bending is smaller, and blade passage is shorter, belongs to low-specific-speed francis turbine runner.This turbine is suitable
For the recycling of middle high overbottom pressure or the water power calculation of corresponding energy level；Through testing, runner hydraulic efficiency is high, up to 96% or more.
The water-supplying chamber is annular water-supplying chamber, is consistent by its ring section with spiral case section cross-sectional area, discharge area and spiral case
Inlet -duct area is consistent, and water-supplying chamber is connected with final stage runner, and effect is to have made flow energy at final stage outlet of rotary wheel
It reduces, so that the energy difference before and after increasing runner, recycles a part of water flow dump energy, realizes energy conservation and environmental protection, runner institutes at different levels
The rotating mechanical energy of generation is exported by main shaft, and the revolving speed of main shaft is 1500-3000r/min, can directly drive blower or pump fortune
Row can also generate electricity without installing speed reducer additional with three-phase synchronous generator direct connection, save expense, improve the reliable of equipment
Property, stability, reduce the operation and maintenance cost of equipment, economic and social benefit is huge.
Claims (8)
1. a kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine mode, including intake chamber, chopped-off head radial are just
Guide vane, chopped-off head runner, at least one level secondary interstage flow road formula guide vane and corresponding stage ultra-low specific speed runner, water-supplying chamber, main shaft, axis
It holds and casing, which is characterized in that bearing (8) center is provided with main shaft (7), is sequentially arranged with chopped-off head on main shaft (7) from top to bottom and is turned
Guide vane (4) and matched runner (5) between (3), at least one level secondary grade are taken turns, guide vane is that structure is identical between grades at different levels
Flow channel type guide blade, flume (1) are connected through first-level guide blade (2) with chopped-off head runner (3), and chopped-off head runner (3) is through secondary interstage flow
Road formula guide vane (4) is connected with the runner (5) of corresponding stage, successively sequentially analogizes, final stage runner is connected with water-supplying chamber (6), water
Stream by flume (1) by smooth in water flow and it is axisymmetric guide first-level guide blade (2) into, chopped-off head runner (3) are formed by first-level guide blade (2)
Required circular rector, into chopped-off head runner (3), then interstage flow road formula guide vane (4) of the chopped-off head runner (3) through being connected enters water
The low-specific-speed mixed-flow hydraulic turbine runner (5) of turbine mode, successively sequentially analogizes, and last water flow with final stage runner by being connected
Logical water-supplying chamber (6) discharge, the hydraulic turbine runner of flow channel type guide blade is constituted with casing (9) together.
2. the hydraulic turbine runner with flow channel type guide blade according to claim 1 based on hydraulic turbine mode, feature exist
In: the flume (1) is circle cross section scroll casing shape, is gradually reduced from import to Outlet Section area, constitutes water flow from import
To the uniform reduction structure of flow between outlet.
3. the hydraulic turbine runner with flow channel type guide blade according to claim 1 based on hydraulic turbine mode, feature exist
In: the first-level guide blade (2) is radial guide vane, while guiding water flow to enter chopped-off head runner (3), forms chopped-off head runner
(3) the necessary circular rector of import, while the pillar as the seat ring being connected with spiral case, play a supportive role.
4. the hydraulic turbine runner with flow channel type guide blade according to claim 1 based on hydraulic turbine mode, feature exist
In: the chopped-off head runner (3) is identical with runners at different levels (5) structure, is the low-specific-speed francis turbine runner of hydraulic turbine mode,
Runner channel becomes axial from import to outlet by radial, is made of crown, blade, lower ring, the inlet angle of runner bucket ~, revolving speed is 60~70r/min.
5. the hydraulic turbine runner with flow channel type guide blade according to claim 1 based on hydraulic turbine mode, feature exist
In: guide vane (4) structure is identical between the grades at different levels, is flow channel type guide blade, the corresponding front and back guide blade of every two and transition
Region is respectively formed independent runner, not public Mixed Zone, reduces interfering with each other between each guide vane, improves waterpower
Can, water flow is flowed to the return guide vane of interstage flow road formula guide vane (4) by the outlet of chopped-off head runner (3), then flows into corresponding guide vane,
Circular rector required for secondary runner is guided and formed by guide vane, enters back into secondary runner, and guide vane outlet diameter is water wheels
The overall diameter of the low-specific-speed mixed-flow hydraulic turbine runner (5) of machine mode adds 2-10mm, and guide vane overall diameter is that guide vane goes out
The height of 1.3-1.5 times of mouth diameter, guide vane outlet is equal with runner inlet height, and return guide vane height is that guide vane outlet is high
1.5-1.8 times of degree, return guide vane inlet diameter is identical as runner mouth diameter, and the right way wheel angle of outlet is identical as runner inlet angle, instead
Vane inlet angle is identical as the runner water flow normal direction angle of outlet, is 90 °.
6. the hydraulic turbine runner with flow channel type guide blade according to claim 1 based on hydraulic turbine mode, feature exist
In: the water-supplying chamber (6) is scroll casing type annular water-supplying chamber, and ring section is corresponding with spiral case section cross-sectional area consistent, outlet
Area is consistent with spiral case inlet area, and the water-supplying chamber (6) is connected with final stage runner, makes the water flow at final stage outlet of rotary wheel
Energy reduces, so that the energy difference before and after increasing runner, recycles the remaining flow energy of a part.
7. the hydraulic turbine runner with flow channel type guide blade according to claim 1 based on hydraulic turbine mode, feature exist
In: the revolving speed of the main shaft (7) is 1500-3000r/min, directly drive blower or pump operation, or is generated electricity with generator direct connection.
8. the hydraulic turbine runner with flow channel type guide blade according to claim 1 based on hydraulic turbine mode, feature exist
Be in: the turbine runner it is vertical or horizontal, be integrally formed structure with casing (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821207721.XU CN208702596U (en) | 2018-07-28 | 2018-07-28 | A kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine mode |
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| CN201821207721.XU CN208702596U (en) | 2018-07-28 | 2018-07-28 | A kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine mode |
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| CN208702596U true CN208702596U (en) | 2019-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798969A (en) * | 2018-07-28 | 2018-11-13 | 华北水利水电大学 | A kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine pattern |
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2018
- 2018-07-28 CN CN201821207721.XU patent/CN208702596U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798969A (en) * | 2018-07-28 | 2018-11-13 | 华北水利水电大学 | A kind of hydraulic turbine runner with flow channel type guide blade based on hydraulic turbine pattern |
| CN108798969B (en) * | 2018-07-28 | 2023-11-24 | 华北水利水电大学 | Hydraulic turbine runner with runner type guide vane based on water turbine mode |
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