CN202348540U - Large-scale shaft cross-flow type water-turbine generator set - Google Patents
Large-scale shaft cross-flow type water-turbine generator set Download PDFInfo
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- CN202348540U CN202348540U CN2011204556649U CN201120455664U CN202348540U CN 202348540 U CN202348540 U CN 202348540U CN 2011204556649 U CN2011204556649 U CN 2011204556649U CN 201120455664 U CN201120455664 U CN 201120455664U CN 202348540 U CN202348540 U CN 202348540U
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- water turbine
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- generator
- turbine
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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
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Abstract
The utility model relates to a large-scale shaft cross-flow type water-turbine generator set which comprises a generator, a water turbine and a speed increaser connecting the generator with the water turbine, wherein the generator and the water turbine are arranged in a concrete shaft at the upstream of the water turbine; a water flow channel bypassing the shaft is arranged at each of the two sides of the concrete shaft; the cross section of the shaft takes the shape of a streamline; water flow converges at a movable guide blade of the water turbine and enters a rotary wheel chamber of the water turbine; the water flow impacts a rotary wheel of the water turbine and drives an output shaft of the water turbine to rotate; and the movable guide blade is fixed on a concrete foundation of the shaft. The large-scale shaft cross-flow type water-turbine generator set has the advantages that the cost of the generator set is effectively cut down and the power generation efficiency and the economic performances of the generator set are improved.
Description
Technical field
The utility model relates to the large-scale shaft tubular formula hydraulic generator unit that is applied to the low-head hydroelectric plant, belongs to fluid machinery and hydroelectric project equipment technical field, specially refers to the design field of hydraulic generator unit.
Background technique
China's hydroelectric resources is through extensive exploitation fast, and the website that middle and high head economic indicator is good is fewer and feweri.The exploitation in low water head radial-flow type power station has got into substantial period.These power heads are between 2～5m, and the reservoir area inundated area is little, and immigrant's quantity is few.But the ratio that accounts for whole power plant construction investment owing to the electromechanical equipment investment is great, and power station per kilowatt cost of investment is higher, and project is not easy to implement.
Being applied to the most common unit in low-head hydroelectric plant at present is Bulb Turbine Units.But when the power head step-down, the rotating speed step-down of unit, if still adopt Bulb Turbine Units, the hydraulic turbine generator packet size is huge, and manufacture cost is very high, and per kilowatt investment in power station is high, the economic indicator extreme difference.Therefore, develop large-scale shaft tubular formula hydraulic generator unit and be applied to low water head radial-flow type power station, effectively reduce the electromechanical equipment cost, reduce development cost and become the task of top priority.
The model utility content
For the hydraulic turbine generator packet size that overcomes existing technology huge; Manufacture cost is high; The shortcoming that development cost are high, the utility model provide a kind of can effectively reduce the unit cost, improves the large-scale shaft tubular formula hydraulic generator unit of unit generation efficient and economic performance.
Large-scale shaft tubular formula hydraulic generator unit comprises generator, water turbine and is connected speed increaser, the combination bearing of described generator and water turbine that described generator, speed increaser and combination bearing place the concrete vertical shaft at the described water turbine upper reaches;
It is characterized in that: the both sides of described concrete vertical shaft are respectively equipped with the water flow passage of walking around vertical shaft; The cross section of described vertical shaft is streamlined; Current converge, go forward side by side into the runner envelope of water turbine at the movable guide vane place of water turbine, water impact rotary wheel of water turbine, the rotation of drive water turbine output shaft;
Described movable guide vane is fixed on the concrete factory building at fixed base place through water distributor, and water distributor is regulated with controlled water flow flow and direction stator.
Further, the single-machine capacity of described water turbine is that 1.5MW-5MW, runner diameter are F2.5m-F5.0m.
Further, described fixed base is cast, and the axial direction of described fixed base is orthogonal to the axial direction of described water turbine.
Further, the output shaft of described water turbine is connected with the input shaft of speed increaser through combination bearing, and the output shaft of described speed increaser is connected with the input shaft of generator, and described generator, speed increaser and combination bearing all are fixed on the concrete factory building of vertical shaft.
Further, described speed increaser is a gear speeder.
The technical conceive of the utility model is: with generator arrangements in the concrete vertical shaft at the upper reaches of water turbine; The section of vertical shaft is streamlined; Current flow in the water flow passage of vertical shaft both sides, converge, go forward side by side into the runner envelope of water turbine at water turbine movable guide vane place, and it is indoor that movable guide vane imports rotary wheel of water turbine with current; The water impact runner blade drives unit through the runner blade switching energy and rotates.
The output shaft that rotary wheel of water turbine drives water turbine rotates, and the end thrust to water turbine that current produce is passed in the concrete through combination bearing, and the rotating energy of runner is passed to the input shaft of generator through combination bearing and gear speeder, thereby produces electric energy.
Through the cast fixed base water distributor is fixed on the concrete, can the hydraulic thrust of current to stator be delivered on the concrete factory building, the cast fixed base is orthogonal to the water turbine axial direction, helps evenly disperseing around the hydraulic thrust court with current.
Can improve 4-6 doubly by the rotating speed that rotary wheel of water turbine forms through speed increaser is set, thereby reduce the size of generator, compact structure makes vertical shaft can have enough spaces and holds generator set.
Generator arrangements is ventilated, moistureproof condition is good, solved the ubiquitous ventilation and heat difficult problem of closed generator effectively in the vertical shaft of opening wide, and unit operation is reliable, easy to maintenance.
The utility model has been realized the rotary propeller type operating device, and runner blade and stator keep the joint relation in the running, have improved generating efficiency, under the big situation of head luffing and changes in flow rate, all can steadily generate electricity and keeps higher efficient.
Along with the speed increaser continuous advancement in technology, large-scale shaft tubular type also significantly promotes on capacity, and EIAJ can reach more than the 5MW.
The utility model can be applied to 2～5m extra low head power station with the large-scale shaft tubular formula hydraulic generator unit of single-machine capacity 1.5MW-5MW, runner diameter F2.5m-F5.0m.
The utlity model has and effectively to reduce the unit cost, improve the advantage of unit generation efficient and economic performance.
Description of drawings
Fig. 1 is the schematic representation of the utility model.
Fig. 2 is the plan view of the utility model.
Concrete factory building 1, concrete vertical shaft 2, runner 3, movable guide vane 4, cast seat 5, main shaft 6, combination bearing 7, speed increaser 8, generator 9, unit runner 10.
Embodiment
With reference to accompanying drawing, further specify the utility model:
Large-scale shaft tubular formula hydraulic generator unit; Comprise the mechanical energy with rotation convert generator 9, the water turbine part of electric energy into, connect described generator 9 with the kinetic energy of current and potential energy converting and energy for the main shaft 6 of the rotary wheel of water turbine 3 of the mechanical energy of rotation, the rotating speed speedup of runner is delivered to the combination bearing 7 of concrete factory building to the rotating speed of generator with the speed increaser 8 that reduces generator size and support rotatable parts and with the thrust of water, described generator 9, speed increaser 8 and combination bearing 7 place the concrete vertical shaft 2 at the described water turbine upper reaches;
The both sides of described concrete vertical shaft 2 are respectively equipped with the water flow passage 10 of walking around vertical shaft and mating with runner; The cross section of described vertical shaft 2 is streamlined; Current converge, go forward side by side into the runner envelope of water turbine at movable guide vane 4 places of water turbine, water impact rotary wheel of water turbine 3,6 rotations of drive water turbine output shaft;
Described movable guide vane 4 is fixed on the concrete factory building of vertical shaft 2 through fixed base 5.
Movable guide vane 4 plays the flow of adjusting current and the effect of direction.
The single-machine capacity of described water turbine is that 1.5MW-5MW, runner diameter are F2.5m-F5.0m.
Described fixed base 5 is cast, and the axial direction of described fixed base 5 is orthogonal to the axial direction of described water turbine.The fixed base of cast is the main stressed member of hydraulic generator unit, and the suffered external force of unit is delivered on the concrete factory building through the fixed base of cast.
The output shaft 6 of described water turbine is connected with the input shaft of speed increaser 8 through combination bearing 7; The output shaft of described speed increaser 8 is connected with the input shaft of generator 9, and described generator 9, speed increaser 8 and combination bearing 7 all are fixed on the concrete factory building 1 of vertical shaft 2.
Described speed increaser 8 is a gear speeder.
The technical conceive of the utility model is: with generator arrangements in the concrete vertical shaft at the upper reaches of water turbine; The section of vertical shaft is streamlined; Current flow in the water flow passage of vertical shaft both sides, converge, go forward side by side into the runner envelope of water turbine at water turbine movable guide vane place, and it is indoor that movable guide vane imports rotary wheel of water turbine with current; The water impact runner blade drives unit through the runner blade switching energy and rotates.
The output shaft that rotary wheel of water turbine drives water turbine rotates, and the end thrust to water turbine that current produce is passed in the concrete through combination bearing, and the rotating energy of runner is passed to the input shaft of generator through combination bearing and gear speeder, thereby produces electric energy.
Through the cast fixed base water distributor is fixed on the concrete; Can the hydraulic thrust of current to stator be delivered on the concrete foundation of concrete factory building 1; The cast fixed base is orthogonal to the water turbine axial direction, helps evenly disperseing around the hydraulic thrust court with current.
Can improve 4-6 doubly by the rotating speed that rotary wheel of water turbine forms through speed increaser is set, thereby reduce the size of generator, compact structure makes vertical shaft can have enough spaces and holds generator set.
Generator arrangements is ventilated, moistureproof condition is good, solved the ubiquitous ventilation and heat difficult problem of closed generator effectively in the vertical shaft of opening wide, and unit operation is reliable, easy to maintenance.
The utility model can be applied to 2～5m extra low head power station with the large-scale shaft tubular formula hydraulic generator unit of single-machine capacity 1.5MW-5MW, runner diameter F2.5m-F5.0m.
The utlity model has and effectively to reduce the unit cost, improve the advantage of unit generation efficient and economic performance.
The utlity model has and realized the rotary propeller type operating device, runner blade and stator keep the joint relation in the running, have improved generating efficiency, under the big situation of head luffing and changes in flow rate, all can steadily generate electricity and keep higher efficient.
Shaft tubular bearing of the utility model and cooling system adopt thin oil lubricant forced circulation mode.Be provided with Lubricating-oil Station in the described vertical shaft.
The described content of this specification embodiment only is enumerating the way of realization of model utility design; The protection domain of the utility model should not be regarded as and only limit to the concrete form that embodiment states, the protection domain of the utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (5)
1. large-scale shaft tubular formula hydraulic generator unit comprises generator, water turbine and is connected speed increaser, the combination bearing of described generator and water turbine that described generator, speed increaser and combination bearing place the concrete vertical shaft at the described water turbine upper reaches;
It is characterized in that: the both sides of described concrete vertical shaft are respectively equipped with the water flow passage of walking around vertical shaft; The cross section of described vertical shaft is streamlined; Current converge, go forward side by side into the runner envelope of water turbine at the movable guide vane place of water turbine, water impact rotary wheel of water turbine, the rotation of drive water turbine output shaft;
Described movable guide vane is fixed on the concrete factory building at fixed base place through water distributor, and water distributor is regulated with controlled water flow flow and direction stator.
2. large-scale shaft tubular formula hydraulic generator unit as claimed in claim 1 is characterized in that: the single-machine capacity of described water turbine is that 1.5MW-5MW, runner diameter are F2.5m-F5.0m.
3. according to claim 1 or claim 2 large-scale shaft tubular formula hydraulic generator unit, it is characterized in that: described fixed base is cast, and the axial direction of described fixed base is orthogonal to the axial direction of described water turbine.
4. large-scale shaft tubular formula hydraulic generator unit as claimed in claim 3; It is characterized in that: the output shaft of described water turbine is connected with the input shaft of speed increaser through combination bearing; The output shaft of described speed increaser is connected with the input shaft of generator, and described generator, speed increaser and combination bearing all are fixed on the concrete foundation of vertical shaft.
5. large-scale shaft tubular formula hydraulic generator unit as claimed in claim 4, it is characterized in that: described speed increaser is a gear speeder, described rotary wheel of water turbine adopts decides the oar form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204556649U CN202348540U (en) | 2011-11-16 | 2011-11-16 | Large-scale shaft cross-flow type water-turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204556649U CN202348540U (en) | 2011-11-16 | 2011-11-16 | Large-scale shaft cross-flow type water-turbine generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348540U true CN202348540U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204556649U Expired - Fee Related CN202348540U (en) | 2011-11-16 | 2011-11-16 | Large-scale shaft cross-flow type water-turbine generator set |
Country Status (1)
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| CN (1) | CN202348540U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434360A (en) * | 2011-11-16 | 2012-05-02 | 水利部杭州机械设计研究所 | Large-scale vertical shaft through-flow type water turbine power generating set |
| CN105804913A (en) * | 2016-04-11 | 2016-07-27 | 武汉大学 | Adjusting method and device for pump serving as water turbine |
| CN109281790A (en) * | 2018-09-25 | 2019-01-29 | 江苏大学镇江流体工程装备技术研究院 | A kind of two-way bulb through-flow turbine |
-
2011
- 2011-11-16 CN CN2011204556649U patent/CN202348540U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434360A (en) * | 2011-11-16 | 2012-05-02 | 水利部杭州机械设计研究所 | Large-scale vertical shaft through-flow type water turbine power generating set |
| CN105804913A (en) * | 2016-04-11 | 2016-07-27 | 武汉大学 | Adjusting method and device for pump serving as water turbine |
| CN109281790A (en) * | 2018-09-25 | 2019-01-29 | 江苏大学镇江流体工程装备技术研究院 | A kind of two-way bulb through-flow turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU JIANGHE HYDRO-ELECTRICAL SCIENCE + TECHNO Free format text: FORMER OWNER: HANGZHOU JIANGHE HYDRO-ELECTRICAL SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20120809 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120809 Address after: 310012 No. 102, Xueyuan Road, Zhejiang, Hangzhou Patentee after: The Ministry of Water Resources Hangzhou Machinery Design Institute Patentee after: Hangzhou JiangHe Hydro-Electric Science & Technology Co., Ltd. Patentee after: Hangzhou Jianghe Electromechanical Equipment Engineering Co., Ltd. Address before: 310012 No. 102, Xueyuan Road, Zhejiang, Hangzhou Patentee before: The Ministry of Water Resources Hangzhou Machinery Design Institute Patentee before: Hangzhou JiangHe Hydro-Electric Science & Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171116 |