CN201318245Y - Low head drop hydraulic turbine - Google Patents
Low head drop hydraulic turbine Download PDFInfo
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- CN201318245Y CN201318245Y CNU2008201258913U CN200820125891U CN201318245Y CN 201318245 Y CN201318245 Y CN 201318245Y CN U2008201258913 U CNU2008201258913 U CN U2008201258913U CN 200820125891 U CN200820125891 U CN 200820125891U CN 201318245 Y CN201318245 Y CN 201318245Y
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- low head
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Abstract
The utility model relates to the technical field of hydraulic turbines, in particular to a low head drop hydraulic turbine capable of transmitting the energy of low head drop flowing water in a river channel to a generator for power generation. The low head drop hydraulic turbine comprises a steel shaft, blades, blade supports, a bearing, a gear, a speed change mechanism and the like. A plurality of well processed blades are mounted on the required blade supports by bolts respectively, and then other blades are mounted on the steel shaft which is long enough with equal angles and in a radiating manner. The blades serves as components for receiving water energy and comprise blades classified as wave type blades, blades classified as plate type blades and blades classified as axe type blades; wherein the wave type blades take the shape of a circular arc, the width thereof serves as chord length, and the length thereof is slightly smaller than the distance between the inner sides of two walls or the width of a water channel; the plate type blades are rectangular; and the right side of each axe type blade takes the shape of an oval groove, and the back side thereof takes the shape of an axe. The low head drop hydraulic turbine can only produce motivation under the action of low head drop water flow, so that the hydraulic turbine must be mounted on a river channel with a certain flow velocity, and can also be mounted on a slope-style water channel built artificially.
Description
Technical field:
The utility model relates to turbine technology field, specifically, is a kind of low head water turbine of river course low head flowing water energy being passed to generator for electricity generation.
Technical background:
The palaiotype water wheeler is the Ancient Chinese generation utilization of Water Energy the earliest.Also be the representative the earliest of low head water turbine, on the human development history, played important function.The structure of palaiotype water wheeler is fairly simple: very big wooden the wheel at the periphery of wheel of diameter is installed countless planks to accept making big wooden wheel rotation from the power of river course low head flowing water, by the tank on the wheel river is mentioned eminence again and pours into the good farmland by water channel.The palaiotype water wheeler is because the wooden wheel diameter is very big, and its rotating speed is very slow.The power that it obtained is less, the more powerful machine operation of therefore incompatible drive.Reason that the low head water generating ignored by the mankind in history that Here it is.
China's water resource is very abundant, the great rivers various places that spread all over the country, and water development is built fast-developing, and water generating is advanced by leaps and bounds.But high drop water generating technology is all adopted in current hydroelectric power, promptly utilize great rivers dykes and dams to improve its water level, utilize the high drop powered " axial flow hydraulic turbine " that freely falls generation of water, " Francis turbine " rotation to drive generator for electricity generation then.The advantage of high drop height water stream generating be since the high drop of water level to obtain the energy of water greatly big, therefore, high drop hydrodynamic force can drive the high-rating generator generating.Although the reservoir investment is very big, can develops electric power after building up for a long time and be subjected to very much human favor.But blemish in an otherwise perfect thing to be that dykes and dams are built long in time limit, difficulty is big, investment is big, and geographical environment, physical environment, human residential environment are caused bigger influence and change, even the land plate are also affected.And the low head flowing water in great rivers river course is being contained huge water energy, but the energy that it produced since the dawn of human civilization having run away in vain all.The energy that great rivers low head flowing water is produced is that nature is given human priceless, huge, pollution-free, the inexhaustible energy.
Summary of the invention:
The purpose of this utility model provides a kind of low head water turbine, be installed in it on the low head section, river course or be installed in the sloping formula water channel current, under the flow energy effect, promote its blade and produce rotating mechanical energy, be transferred to generator for electricity generation by variable-speed motor again, with exploitation river course and sloping formula water channel low head hydro-electric power project.The low head water turbine is the machinery that can drive than the high-power generator running.
The technological scheme of low head water turbine:
The low head water turbine is made up of steel axle, blade, blade rack, bearing, gear, gear etc.
Process intact blade several pieces.With bolt blade is installed in respectively on the required blade rack, with equal angles several pieces blade radiation is installed on the sufficiently long steel axle again.One end of steel axle is equipped with the bearing of bearing support, and bearing, axle head that same model is installed in the other end are installed the gear with sufficient intensity bearing capacity.
Specifically: the steel axle is the main body part of axe formula water turbine, is the carrier that blade, bearing, gear are installed, and also is the parts that flow energy are converted into rotating mechanical energy.
Its shape is: let it be that diameter will be by not crooked indeformable deciding under all leaf weight conditions of carrying for sufficiently long cylindrical steel column or steel.Be processed into the diameter of axle identical at the two ends of steel axle with the bearing bore diameter of being installed.
Blade is parts of accepting the water energy.
Blade be shaped as ripple formula blade and board-like blade, axe formula blade.
Ripple formula blade: be circular-arc.Its width is a chord length, has both accepted the degree of depth of fluviation, and its length is to be slightly less than the distance of two Dun Qiang or the width of water channel.
Board-like blade: be rectangle.Its width is the degree of depth of accepting fluviation, and its length is to be slightly less than the distance of two Dun Qiang or the width of water channel.
Axe formula blade: the front is oval flute profile.The back side is the axe type.Its width can be according to raw material and processing simple and easy deciding whether, and its length is to accept the degree of depth of fluviation.Promptly to guarantee that obtaining the maximum flow of water energy decides.
Blade rack is the connected element that ripple formula blade, plate blade, axe formula blade are installed on the steel axle, installs or is welded on the steel axle with bolt.It is not crooked indeformable that blade rack must keep under the effect of energy that blade is accepted.
Its shape is: the blade rack that ripple formula blade is installed is a circular shape, is to be made by circular arc Plate Steel or the angle steel identical with the blade radian; The blade rack of board-like blade and axe formula blade is installed to be made with straight steel plate or angle steel.
Bearing: bearing is equipped with at steel axle two ends, and purpose is that the surface friction drag when the steel axle is rotated drops to minimum.
Gear: being the energy output block with sufficient intensity load-carrying ability, also is simultaneously by the gear ratio of gear the rotating speed of water turbine to be done to improve for the first time to pass to variable-speed motor.
Slope formula water channel: the flowing water channel of building by certain gradient from certain height, in the high-end build of water channel one Gao Tai pond is arranged, low side is built a underground tank, and the water in Gao Tai pond is pressed certain flow rate inflow place sink by sloping formula water channel.
The height of high platform water channel should decide by its lift with the peak rate of flow water pump of selling on the current market, guarantees the maximum height that water pump supplies water.
The speed variator system of low head water turbine:
Purpose is that the power that axe formula water turbine produces is improved its rotating speed to satisfy the required rotating speed of generator by gear.Speed variator system comprises energy output gear, variable-speed motor energy input gear, the variable-speed motor of low head water turbine.Variable-speed motor can utilize the reverse use of speed reducer.
The beneficial effect of low head water turbine:
The low head water turbine is that the low head flowing water energy is converted to the equipment that mechanical energy is passed to generator for electricity generation.The low head hydraulic turbine structure is simple, and process for machining and manufacturing is simple, therefore can drop into batch process rapidly.The blade of low head water turbine is installed on the same steel axle with radial, and the energy that its turning radius is little, rotating speed is fast, obtain flowing water is big, and therefore, the low head water turbine can drive than high-power generator and generate electricity.
Realize the application of where distinguishing in office of low head water turbine by culture's wet pit and ramp type water channel, therefore, avoided long-distance high voltage power transmission problem.Each city, each rural area, each factory can decide the scale of sloping formula water channel according to the actual demand of oneself, with the needs that guarantee that oneself is powered.
The low head hydro-electric power project all can be developed in most of section of great rivers, and particularly the middle and upper reaches section will be optimal selection.Invest little, the duration is short, difficulty of construction is less, and physical environment, the human settlement of river course and two sides, great river do not had bad change.In addition, middle and small river also can be developed middle-size and small-size hydro-electric power project, and development local electricity cause solves the electricity needs of remote mountain areas.Therefore, river course low head flowing water energy is passed to generator for electricity generation also is feasible to the low head water turbine.
Description of drawings:
Fig. 1, be the ripple formula blade plan view of the utility model low head water turbine.
Fig. 2, be front view.
Fig. 3, be side view.
Fig. 4, be the plan view of the board-like blade of the utility model low head water turbine.
Fig. 5, be front view.
Fig. 6, be side view
Fig. 7, be the axe formula blade plan view of the utility model low head water turbine.
Fig. 8, be front view,
Fig. 9, be side view.
Figure 10, be the utility model low head water turbine ripple formula water turbine front elevational schematic.
Figure 11, be ripple formula water turbine side view.
Figure 12, be that the utility model low head water turbine is installed the schematic top plan view of using on sloping formula water channel:
Figure 13, be that the utility model low head water turbine is installed in the front elevational schematic on the sloping formula water channel:
Embodiment:
The technological scheme of low head water turbine:
The low head water turbine is made up of steel axle 4, blade 1, blade rack 7, bearing 5, gear 6, gear 12 etc.
The low head water turbine must produce rotating power under the effect of low head current, therefore, the low head water turbine must be installed on the river course with certain flow rate.Certainly, also can be installed on the sloping formula water channel of artificial build.
Dun Qiang: be the carrier that the low head water turbine is installed in the river course, the parapet of similar bridge pier.
Slope formula water channel 11: be the flowing water channel of building by certain slope at certain altitude, in the high-end build of water channel 11 a Gao Tai pond 12 arranged, in that design is having outlet gate by water channel 11 1 sides, low side is built a underground tank 13.
Be every low head water turbine of distance installation for two times by being slightly larger than low head turbine blade turning radius length on sloping formula water channel, the mounting platform number is decided by the length of water channel.
High platform wet pit 12: the height of high platform wet pit 12 should be that the output water pipe maximum height of water pump decides by its lift with the water pump 14 of current peak rate of flow, guarantees the maximum height that water pump 14 supplies water.
The low head water turbine:
Process intact blade several pieces.With bolt blade is installed in respectively on the required blade rack 7, with equal angles several pieces blade radiation is installed or are welded on the sufficiently long steel axle 4 again.
One end of steel axle 4 is equipped with the bearing 5 of bearing support, and bearing 5, steel axle 4 axle heads that same model is installed in the other end are installed the gear 6 with sufficient intensity bearing capacity.
In conjunction with Figure 10:
Its shape is: sufficiently long cylindrical steel rod or steel pipe, its diameter will be by not crooked indeformable deciding under all leaf weight conditions of carrying.Be processed with and the identical diameter of axle of being installed of bearing 5 internal diameters at the two ends of steel axle 4.
Blade is parts of accepting the water energy.Its shape has ripple formula blade 1 and board-like blade 2, axe formula blade 3.
In conjunction with Fig. 1: ripple formula blade
Ripple formula blade 1: be circular-arc.Its width is a chord length, has both accepted the degree of depth of fluviation, and its length is to be slightly less than the distance of two Dun Qiang or the width of water channel.
In conjunction with Fig. 4: board-like blade
Board-like blade 2: be rectangle.Its width is the degree of depth of accepting fluviation, and its length is to be slightly less than the distance of two Dun Qiang or the width of water channel.
In conjunction with Fig. 7 axe formula blade
Axe formula blade 3: the front is oval flute profile.The back side is the axe type.Its width can be according to raw material and processing simple and easy deciding whether, and its length is to accept the degree of depth of fluviation.Promptly to guarantee that obtaining the maximum flow of water energy decides.
Its shape is: the blade rack that ripple formula blade 1 is installed is a circular shape, is to be made by circular arc Plate Steel or the angle steel identical with the blade radian; The blade rack of board-like blade 2 and axe formula blade 3 is installed to be made with straight steel plate or angle steel.
Bearing 5: bearing 5 is equipped with at steel axle 4 two ends, and purpose is that the surface friction drag during steel axle 4 rotation drops to minimum.
Gear 6: being the energy output block with sufficient intensity load-carrying ability, also is simultaneously the rotating speed that improves water turbine by the gear ratio of gear.
In conjunction with Figure 12
The installation of low head water turbine on ripple formula water channel.
Under the situation of the minimum range that adjacent two water turbine run well, more water turbine is installed on sloping formula water channel.Select to install generator power according to the energy of low head water turbine output.
Among the figure: gear 8 is parts of variable-speed motor intake, is the parts that connect water turbine and variable-speed motor, and gear 8 and gear 6 are meshed.
Variable-speed motor 9, generator 10, sloping formula water channel 11, high platform water channel 12, specus 13, outlet gate driving machine 16, outlet gate 17.
In conjunction with Figure 13
Slope formula water channel 11: be the flowing water channel of building by certain slope at certain altitude, in the high-end build of water channel 11 a Gao Tai pond 12 arranged, in that design is having outlet gate 17 by water channel 11 1 sides, low side is built a underground tank 13.
The height of high platform wet pit should decide by its lift water and pump conduit pipe 15 maximum heights with the water pump 14 of current peak rate of flow, is the maximum height that guarantees water pump 14 normal water supplies.Wet pit 12 retainings height should consider that the lift of water pump 14 considers to improve as much as possible the flow velocity of water channel 11 flowing water again.The high more wet pit of reserve-water-level bottom pressure is big more, and the flow velocity of water channel water is fast more, and the power of generation is big more.Sloping formula water channel one side in the pond is equipped with outlet gate, the water channel slope requirement had both guaranteed that flowing water reached certain flow velocity, the height on canal edge is decided by the turbine blade turning radius, the distance at the bottom of not only having guaranteed the normal not scratching of rotation of blade but also dwindled blade and canal as much as possible.The distance on two canal edges is advisable for being slightly less than length of blade, guarantees blade and the canal minimum range along not scratching of wall, and not waste flowing water energy be purpose to reach.
The speed variator system of low head water turbine
Purpose is that the power that the low head water turbine produces is improved its rotating speed to satisfy generator 10 required rotating speeds by variable-speed motor 9, and variable-speed motor 9 can utilize the reverse use of speed reducer.
Implement at last:
The intact low head water turbine of assembling is installed on the sloping formula water channel 11 by required number of sloping formula water channel length.
Connect low head water turbine, variable-speed motor and generator, connected transformation and pressure stabilizing device and each consumer.
Closed the outlet gate 17 of high wet pit 12.
Ready at all, open outlet gate 17 to needed height.Opening water pump 14 simultaneously supplies water.This moment, current place of arrival low head water turbine began rotation, and generator 10 begins generating, and water pump 14 utilizes generator 10 electricity to finish the retaining task of high platform water channel 12, so Infinite Cyclic.
Claims (6)
1, a kind of low head water turbine, by the steel axle, blade, blade rack, gear, compositions such as variable-speed motor, it is characterized in that processing several pieces intact blades, with bolt blade is installed in respectively on the required blade rack, with equal angles several pieces blade radiation are installed on the sufficiently long steel axle again, one end of steel axle is equipped with the bearing of bearing support, the bearing of same model is installed in the other end, axle head is equipped with gear, the input gear of gear and variable-speed motor is meshed, the low head water turbine is being installed on the river course on the Dun Qiang that constructs, can be installed in area, no river course on the sloping formula water channel of artificial build, under the effect of low head current, the mechanical energy that the blade rotation produces is by the steel axle, gear, variable-speed motor is passed to generator for electricity generation.
2, low head water turbine according to claim 1 is characterized in that the steel axle is at sufficiently long steel column that has enough strong load-carrying ability or steel pipe, is processed with the axle that the required bearing diameter of axle is installed above.
3, low head water turbine according to claim 1 is characterized in that ripple formula blade is circular shape, and its width is the chord length of circular arc, and for accepting the degree of depth of fluviation, its length is to be slightly less than the distance of two Dun Qiang or the width of water channel.
4, low head water turbine according to claim 1 is characterized in that board-like blade is rectangle, and its width is the degree of depth of accepting fluviation, and its length is to be slightly less than the distance of two Dun Qiang or the width of water channel.
5, low head water turbine according to claim 1; it is characterized in that axe formula face of blade is oval flute profile, the back side is the axe type, and its width can be according to raw material and processing simple and easy deciding whether; its length is to accept the degree of depth of fluviation, promptly to guarantee that obtaining the maximum flow of water energy decides.
6, a kind of low head water turbine according to claim 1 is characterized in that many water turbine are installed on the sloping formula water channel successively, in the high-end build of water channel one Gao Tai pond is arranged, and in that design is having outlet gate by water channel one side, low side is built a underground tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201258913U CN201318245Y (en) | 2008-07-18 | 2008-07-18 | Low head drop hydraulic turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201258913U CN201318245Y (en) | 2008-07-18 | 2008-07-18 | Low head drop hydraulic turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318245Y true CN201318245Y (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201258913U Expired - Fee Related CN201318245Y (en) | 2008-07-18 | 2008-07-18 | Low head drop hydraulic turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN201318245Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334860A (en) * | 2013-06-25 | 2013-10-02 | 浙江大学宁波理工学院 | Floating body type dual-impeller tidal current energy power generating device |
| CN104912723A (en) * | 2015-06-17 | 2015-09-16 | 安吉天剑电器厂 | Efficient water circulation and power generation integrated system |
| CN105257459A (en) * | 2015-11-26 | 2016-01-20 | 耿秀 | Efficient and energy-saved water lifting power generation system |
| CN108343144A (en) * | 2018-03-13 | 2018-07-31 | 江苏省太湖水利规划设计研究院有限公司 | A kind of bailing bucket formula long-shaft pump and its application |
-
2008
- 2008-07-18 CN CNU2008201258913U patent/CN201318245Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334860A (en) * | 2013-06-25 | 2013-10-02 | 浙江大学宁波理工学院 | Floating body type dual-impeller tidal current energy power generating device |
| CN104912723A (en) * | 2015-06-17 | 2015-09-16 | 安吉天剑电器厂 | Efficient water circulation and power generation integrated system |
| CN105257459A (en) * | 2015-11-26 | 2016-01-20 | 耿秀 | Efficient and energy-saved water lifting power generation system |
| CN108343144A (en) * | 2018-03-13 | 2018-07-31 | 江苏省太湖水利规划设计研究院有限公司 | A kind of bailing bucket formula long-shaft pump and its application |
| CN108343144B (en) * | 2018-03-13 | 2023-10-31 | 江苏省太湖水利规划设计研究院有限公司 | Scoop type long shaft pump and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20100718 |