CN2809250Y - Bulb through flow type hydroturbine generator unit - Google Patents
Bulb through flow type hydroturbine generator unit Download PDFInfo
- Publication number
- CN2809250Y CN2809250Y CNU2005200349945U CN200520034994U CN2809250Y CN 2809250 Y CN2809250 Y CN 2809250Y CN U2005200349945 U CNU2005200349945 U CN U2005200349945U CN 200520034994 U CN200520034994 U CN 200520034994U CN 2809250 Y CN2809250 Y CN 2809250Y
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- bulb
- stator
- tubular
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- water
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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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- Hydraulic Turbines (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model relates to a bulb through flow type hydroturbine generator unit which comprises a hydroturbine and an electric generator which shares with a main shaft. The electric generator and a bearing piece are arranged in a bulb-shaped seal housing, and whole unit is horizontally arranged in a flow passage through a pipe-shaped base and an auxiliary supporting frame. The hydroturbine is composed of an embedding mechanism, a water guiding mechanism, a rotation mechanism and an auxiliary arrangement mechanism, wherein the embedding mechanism of the hydroturbine is composed of a pipe-shaped base, a rotary wheel chamber, a telescopic belt and a water draft pipe. The water guiding mechanism is composed of a servomotor, guiding vanes, a driving piece and a heavy hammer; the electric generator is composed of a stator, a rotor, a combination bearing, a bulb body and an auxiliary piece. The rotor is in a cantilever type structure; an upstream side of the stator is fastened on the bulb body and a current collection supporting frame, and a downstream side of the stator is connected with the pipe-shaped base. The flow passage has the advantages of great form, small size, high energy parameter and high efficiency; the utility model has the advantages of small size, light weight, less engineering work load of civil engineering, less investment, favorable operation performance and wide application range.
Description
Affiliated technical field
The utility model relates to the hydraulic turbine generator group, particularly a kind of scaled bulb tubular hydraulic generator group.
Technical background
From the trend of world's hydroelectric development as can be seen, the significance of low head hydropower station construction grows stronger day by day, but the gen-set of conventional low-head hydroelectric plant, particularly the critical piece size of water turbine increases day by day, increased the manufacture difficulty of equipment, many in recent years manufacturing firms have all strengthened providing strong support to the very exploitation and the optimization of low water head unit of low water head to the low-head hydroelectric plant construction feasibility especially.
From domestic situation, China's waterpower resourses are very abundant, but it is very inhomogeneous to distribute, mainly concentrate on the west area, especially southwest, and main electric load is all in southeastern coast and middle part, so the exploitation of hydroelectric resources produced very big contradiction with using, and also is one of factor that in the past restricted for many years hydroelectric development to a certain extent.Although at great rivers construction radial-flow type, low water head, block power plant should not be the first-selected point that exploits water power resources, but shake in above-mentioned reason, depth development along with the hydroelectric development rate, in recent years, in the southeast and the middle part low water head, big flow waterpower resourses heat have appearred developing, and development is very rapid, goes to see with long-range strategy of sustainable development eye, this situation also should be supported, because this is always than economical and practical many of exploitation wind-powered electricity generation, solar energy.And the development and use that more the good news is low water head can reduce submerge loss, are to suit measures to local conditions to the southeastern coastal areas.All these development and utilizations for the scaled bulb tubular hydraulic generator group provide favorable factor.
Summary of the invention
The purpose of this utility model provides that a kind of runner form is good, size is little, and energy parameter is big, efficient is high, and the machine packet size is little, in light weight, civilwork engineering quantity is few, investment is little, and ride quality is good, scaled bulb tubular hydraulic generator group applied widely.
The technical solution of the utility model is to realize like this.
A kind of scaled bulb tubular hydraulic generator group comprises water turbine and generator two-part composition, and a shared main shaft, generator, bearing part are arranged in the bulb-shaped seal casinghousing, and whole unit places runner according to tubular seat and supplemental support level; Its water turbine by imbed, water guide, rotation and auxiliary deployment mechanism form, water turbine is imbedded mechanism and is made up of tubular seat, runner envelope, telescopic band and draft tube; Water distributor is by inside and outside ring, stator, the control ring of joining, and servomotor, stator driving component, weight are formed; Rotating mechanism is made up of runner, main shaft, guide bearing, main shaft seal, operating oil line and lubricant receiver; Generator is made up of stator, rotor, combination bearing, bulb and auxiliary member, and rotor is a cantilever structure, and stator upstream side and bulb are closing, and the downstream side is connected with tubular seat.
Tubular seat is made up of the tubular seat in upstream and downstream, tubular seat inside and outside shell and pillar.
Bulb is by light bulb head, central ring and enter vertical shaft and form, and connects by flange each other, and the joint close face also adopts the rubber seal sealing; The bulb bottom is provided with vertical support, and both sides are provided with horizontal support.
Auxiliary arranging section becomes mechanism by returning, and oil, gas, water lines and floor staircase are formed.
Forward and reverse thrust-bearing of dynamo bearing collection and radial bearing are one, claim combination bearing.
The bulb unit of horizontal layout is compared with the axial-flow Kaplan unit of vertical layout, has following tangible technical advantage:
1. the runner form is good, size is little.Because the bulb unit has been cancelled on the plane 90 ° of elbow draft tubes that turn round on 180 ° of spiral cases that turn round and the facade, and adopt the direct shaft type flume, its admission section is a rectangle.Transition is annulus section and right cone formula draft tube gradually near the scope of bulb, since the straight symmetry of runner, the influence of having avoided current to turn round and afterwards form the runner skewness and cause flow-shape to degenerate, and hydraulic loss is less.This right cone expansion type draft tube energy restitution coefficient is up to 0.9 (conventional elbow draft tube energy restitution coefficient is in 0.75).Owing to cancelled spiral case and elbow draft tube, bulb unit channel size is reduced simultaneously.When runner diameter was identical, unit section waterpower size only was equivalent to about 2/3 of axial flow unit, thereby civilwork engineering quantity and construction investment reduce more.
2. energy parameter is big, efficient is high.Because the bulb unit is horizontal layout, current are smooth-going, and because of adopting straight tail expansion type draft tube, reduced the draft tube loss of head, and it is more to have improved the water turbine energy indexes, therefore, and bulb unit specific speed n
s〉=1000mkw, and coefficient of specific speed k (=n
s√ H) 〉=3000 about, considerably beyond the other types water turbine.Because the bulb unit has good hydraulic characteristic, so its efficient is higher, rated point efficient is about 94.5%, and peak efficiency is about 95.5%, respectively than axial-flow Kaplan unit high 5% and about 3%.
3. the machine packet size is little, and is in light weight.Bulb unit energy indexes height more has characteristics such as compact structure, volume is little, consumptive material is few concurrently.Compare with the axial-flow Kaplan unit, under identical diameter and head, exert oneself and to improve about 30%.When head was identical with single-machine capacity, bulb unit runner diameter was littler by about 15% than axial-flow Kaplan unit runner diameter, weight saving about 25%, and every unit weight differs about 1.7 times.
4. few, the less investment of civilwork engineering quantity.The bulb unit has been cancelled spiral case and elbow draft tube, and its volume reduces, compact structure, and plant area is little; In addition, because the bulb unit is arranged horizontally, therefore its cutting depth, is compared with adopting axial-flow Kaplan unit scheme also less than the axial-flow Kaplan unit, and its Industrial Plant expense can save 30%～40%.
5. ride quality is good, Applicable scope is big.Because bulb unit efficiency height, weighted average efficiency is higher by about 4% than axial-flow Kaplan unit, and promptly its annual electricity generating capacity can increase about 4%, and this is the sharpest edges of bulb unit.Secondly because bulb unit runner paddle and stator joint are on speaking terms, and structural rigidity is big, the runner symmetry, therefore, that the bulb unit has is stable, unit vibration and throw value are little, and running noises can satisfy characteristics such as code requirement.Moreover the bulb unit cavitation corrosion of horizontal layout is slight, and the maintenance amount seldom.Bulb unit operating head polishing usage range is big, can reliably and efficiently move in 4～25m head section.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein: 1, enter vertical shaft; 2, water shutoff cover plate; 3, tubular seat; 4, water distributor; 5, runner; 6, radial bearing; 7, servomotor; 8, combination bearing; 9, generator amature; 10, generator unit stator; 11, supplemental support; 12, generator cooling system; 13, lubricant receiver; 14, light bulb head.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1, a kind of scaled bulb tubular hydraulic generator group comprises water turbine and generator two-part composition, a shared main shaft, generator, bearing part are arranged in the bulb-shaped seal casinghousing, and whole unit places runner according to tubular seat 3 and supplemental support 11 levels; Its water turbine by imbed, water guide, rotation and auxiliary deployment mechanism form, water turbine is imbedded mechanism and is made up of tubular 3, runner envelope, telescopic band and draft tube; Water distributor 4 is by inside and outside ring, stator, the control ring of joining, and servomotor 7, stator driving component, weight are formed; Rotating mechanism is made up of runner 5, main shaft, guide bearing, main shaft seal, operating oil line and lubricant receiver 13; Generator is made up of stator 10, rotor 9, combination bearing 8, bulb and auxiliary member, and generator amature 9 is a cantilever structure, and stator upstream side and bulb are closing, and the downstream side is connected with tubular seat.
Tubular seat 3 is by the tubular seat in upstream and downstream, tubular seat 3 inside and outside shells and pillar, and fixed guide vane is formed.
Bulb 3 is by light bulb head 14, central ring and enter vertical shaft 1 and form, and connects by flange each other, and the joint close face also adopts the rubber seal sealing; The bulb bottom is provided with vertical support, and both sides are provided with horizontal support, bears the shaking couple that current cause.
Assist arranging section to become mechanism by returning, oil, gas, water lines and floor staircase are formed, and time change mechanism adopts electricity to return change, and signal is taken from servomotor and lubricant receiver.
Forward and reverse thrust-bearing of dynamo bearing collection and radial bearing 6 are one, claim combination bearing 8
Tubular seat is the most important inlet part of Bulb Turbine Units, it is as the main support of unit, the stress that the weight of whole unit, positive and negative hydraulic thrust, hydraulic pressure, generator torque, thermal distortion produce, the loading of factory building part and other load main tube shape seat and pillar (fixed guide vane) bear and reach concrete foundation again; Tubular seat is the benchmark that each parts of unit are installed, and water distributor, bearing, generator unit stator all directly are fixed on the tubular seat closing, and therefore tubular seat must have enough rigidity and intensity.
Generator cooling system 12 adopts normal pressure sealing and circulating forced ventilation cooling system, and generator adopts the mechanical braking mode, and water shutoff cover plate 2 is the indispensable cover plates of unit.
Claims (5)
1. scaled bulb tubular hydraulic generator group, it is characterized in that: comprise water turbine and generator two-part composition, a shared main shaft, generator, bearing part are arranged in the bulb-shaped seal casinghousing, and whole unit places runner according to tubular seat (3) and supplemental support (11) level; Its water turbine by imbed, water guide, rotation and auxiliary deployment mechanism form, water turbine is imbedded mechanism and is made up of tubular (3), runner envelope, telescopic band and draft tube; Water distributor (4) is by inside and outside ring, stator, the control ring of joining, and servomotor (7), stator driving component, weight are formed; Rotating mechanism is made up of runner (5), main shaft, guide bearing, main shaft seal, operating oil line and lubricant receiver (13); Generator is made up of stator (10), rotor (9), combination bearing (8), bulb and auxiliary member, and rotor (9) is a cantilever structure, and stator upstream side and bulb are closing, and the downstream side is connected with tubular seat.
2. scaled bulb tubular hydraulic generator group according to claim 1 is characterized in that: tubular seat (3) is made up of the tubular seat in upstream and downstream, tubular seat (3) inside and outside shell and pillar.
3. scaled bulb tubular hydraulic generator group according to claim 1 is characterized in that: bulb (3) is by light bulb head (14), central ring and enter vertical shaft (1) and form, and connects by flange each other, and the joint close face also adopts the rubber seal sealing; The bulb bottom is provided with vertical support, and both sides are provided with horizontal support.
4. scaled bulb tubular hydraulic generator group according to claim 1 is characterized in that: auxiliary arranging section becomes mechanism by returning, and oil, gas, water lines and floor staircase are formed.
5. scaled bulb tubular hydraulic generator group according to claim 1 is characterized in that: forward and reverse thrust-bearing of dynamo bearing collection and radial bearing (6) are one, claim combination bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200349945U CN2809250Y (en) | 2005-08-02 | 2005-08-02 | Bulb through flow type hydroturbine generator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200349945U CN2809250Y (en) | 2005-08-02 | 2005-08-02 | Bulb through flow type hydroturbine generator unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809250Y true CN2809250Y (en) | 2006-08-23 |
Family
ID=36925435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200349945U Expired - Fee Related CN2809250Y (en) | 2005-08-02 | 2005-08-02 | Bulb through flow type hydroturbine generator unit |
Country Status (1)
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| CN (1) | CN2809250Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443242C (en) * | 2006-11-15 | 2008-12-17 | 四川东风电机厂有限公司 | Welding and deformation control method of large scale bulb tubular set and base |
| CN102003329A (en) * | 2010-12-23 | 2011-04-06 | 天津市天发重型水电设备制造有限公司 | Pipe flow type hydraulic generator |
| CN102011675A (en) * | 2010-12-23 | 2011-04-13 | 天津市天发重型水电设备制造有限公司 | Small self-contained tubular water-wheel generator set |
| CN102182690A (en) * | 2011-06-08 | 2011-09-14 | 扬州大学 | Composite tubular pump device |
| CN102352617A (en) * | 2011-10-20 | 2012-02-15 | 国电大渡河流域水电开发有限公司 | Bulb-tubular hydropower station plant diverting constructing method |
| CN102359091A (en) * | 2011-08-06 | 2012-02-22 | 杜章伟 | Natural fall water flow power generation system |
| WO2014012295A1 (en) * | 2012-07-20 | 2014-01-23 | 重庆同利实业有限公司 | Adjustable floating pipe type hydroelectric generating device |
| CN104122197A (en) * | 2014-08-07 | 2014-10-29 | 哈尔滨电机厂有限责任公司 | Through-flow turbine corrosion test model device |
| CN104455197A (en) * | 2014-12-02 | 2015-03-25 | 国家电网公司 | Bulb type turbine generator support |
| CN105736218A (en) * | 2016-04-19 | 2016-07-06 | 西华大学 | Horizontal water turbine generator set |
| CN108035323A (en) * | 2017-12-12 | 2018-05-15 | 成都鼎智汇科技有限公司 | Undergroundhydropower station with anticorrosion pipeline |
| CN111266856A (en) * | 2020-03-20 | 2020-06-12 | 中铁二十局集团第六工程有限公司 | Bulb head and cone hoisting method of bulb tubular water turbine generator set |
| CN112392637A (en) * | 2020-10-27 | 2021-02-23 | 天津禹兰特水电设备制造有限责任公司 | Steel structure modular type through-flow slurry-conversion water turbine generator set and using method thereof |
-
2005
- 2005-08-02 CN CNU2005200349945U patent/CN2809250Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443242C (en) * | 2006-11-15 | 2008-12-17 | 四川东风电机厂有限公司 | Welding and deformation control method of large scale bulb tubular set and base |
| CN102003329A (en) * | 2010-12-23 | 2011-04-06 | 天津市天发重型水电设备制造有限公司 | Pipe flow type hydraulic generator |
| CN102011675A (en) * | 2010-12-23 | 2011-04-13 | 天津市天发重型水电设备制造有限公司 | Small self-contained tubular water-wheel generator set |
| CN102182690A (en) * | 2011-06-08 | 2011-09-14 | 扬州大学 | Composite tubular pump device |
| CN102359091A (en) * | 2011-08-06 | 2012-02-22 | 杜章伟 | Natural fall water flow power generation system |
| CN102352617B (en) * | 2011-10-20 | 2013-12-18 | 国电大渡河流域水电开发有限公司 | Bulb-tubular hydropower station plant diverting constructing method |
| CN102352617A (en) * | 2011-10-20 | 2012-02-15 | 国电大渡河流域水电开发有限公司 | Bulb-tubular hydropower station plant diverting constructing method |
| WO2014012295A1 (en) * | 2012-07-20 | 2014-01-23 | 重庆同利实业有限公司 | Adjustable floating pipe type hydroelectric generating device |
| CN104122197A (en) * | 2014-08-07 | 2014-10-29 | 哈尔滨电机厂有限责任公司 | Through-flow turbine corrosion test model device |
| CN104455197A (en) * | 2014-12-02 | 2015-03-25 | 国家电网公司 | Bulb type turbine generator support |
| CN105736218A (en) * | 2016-04-19 | 2016-07-06 | 西华大学 | Horizontal water turbine generator set |
| CN108035323A (en) * | 2017-12-12 | 2018-05-15 | 成都鼎智汇科技有限公司 | Undergroundhydropower station with anticorrosion pipeline |
| CN111266856A (en) * | 2020-03-20 | 2020-06-12 | 中铁二十局集团第六工程有限公司 | Bulb head and cone hoisting method of bulb tubular water turbine generator set |
| CN112392637A (en) * | 2020-10-27 | 2021-02-23 | 天津禹兰特水电设备制造有限责任公司 | Steel structure modular type through-flow slurry-conversion water turbine generator set and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DEC DONGFENG ELECTRIC MACHINERY CO., LTD. Free format text: FORMER NAME: DONGFENG MOTOR FACTORY CO., LTD., SICHUAN |
|
| CP03 | Change of name, title or address |
Address after: 614802 Sichuan city of Leshan province Wutongqiao Dec Dongfeng Motor Co. Ltd. Patentee after: DEC Dongfeng Electric Machinery Co., Ltd. Address before: 614802 Sichuan city of Leshan province Wutongqiao Sichuan Dongfeng Motor Factory Co Ltd Patentee before: Dongfeng Motor Factory Co., Ltd., Sichuan |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060823 Termination date: 20120802 |