CN104120901B - Hydropower plant of staggered layer type water turbine layer structure - Google Patents
Hydropower plant of staggered layer type water turbine layer structure Download PDFInfo
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- CN104120901B CN104120901B CN201410379751.9A CN201410379751A CN104120901B CN 104120901 B CN104120901 B CN 104120901B CN 201410379751 A CN201410379751 A CN 201410379751A CN 104120901 B CN104120901 B CN 104120901B
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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 invention discloses a hydropower plant of a staggered layer type water turbine layer structure, and belongs to the technical field of water resources and hydropower engineering. By means of the hydropower plant of the staggered layer type water turbine layer structure, the structural arrangement of a large riverbed-typed hydropower plant water turbine layer can be optimized, and engineering investment can be saved. The hydropower plant of the staggered layer type water turbine layer structure comprises a spiral shell structure and the water turbine layer above the spiral shell structure. The ground of the water turbine layer comprises at least two types of partitions with different elevations, and the elevations of different ground partitions are decreased grade by grade along the plant upstream side to the plant downstream side. The ground of the water turbine layer is set to the hierarchy of the partitions with different elevations, thickness of a spiral shell top plate at the corresponding position can be reduced, and concrete consumption is reduced; meanwhile the elevation of a generator layer can be further reduced, the main shaft length of a generator can be shortened, and finally engineering investment can be saved.
Description
Technical field
The present invention relates to Hydraulic and Hydro-Power Engineering technical field, and in particular to one kind is available for large-scale power station in river channel's Factory Building to adopt
The powerhouse of hydropower station of splitlevel turbine floor structure.
Background technology
The turbine-generator units of large-scale power station in river channel's Factory Building quote flow greatly, and channel size is big, typically using coagulation
Native worm frame.Because concrete spiral casing roof span is big, bear that internal water pressure is higher, concrete crack width should also meet phase
Close the requirement of Design of Hydraulic Structures specification；Thus concrete thickness needed for spiral case top board is larger, the bending resistance of structure could be met, resisted
Cut equal strength to require and life requirement.Mostly using turbine floor ground (the namely upper table of spiral case top board in prior art
Face) it is the arrangement for waiting elevation, i.e. flat bed arrangement.
Further, since hydraulic turbine concrete spiral casing is a Complicated Spatial Structure, in the spiral case roof span of Factory Building upstream side
Substantially exceed Factory Building downstream with height of side wall, and the pressure head for acting on upstream and downstream side spiral case top board is almost identical, thus
Xoncrete structure thickness needed for Factory Building upstream side also will substantially exceed Factory Building downstream.If the water generally adopted by prior art
Turbine layer ground flat bed arrangement, then the concrete thickness in Factory Building downstream is excessive, not only causes the waste of concrete, also subtracts
The effective depth of turbine floor is lacked, and then has needed to raise generator floor ground elevation, electromotor Installation Elevation so that water wheels have been sent out
The main axis length of group of motors increases, and finally increases construction investment.
The content of the invention
Present invention solves the technical problem that being to provide a kind of knot for optimizing large-scale power station in river channel's Factory Building turbine floor
Structure is arranged, while the powerhouse of hydropower station of the splitlevel turbine floor structure of cost saving.
The technical solution adopted for the present invention to solve the technical problems is：The Hydroelectric Plant of splitlevel turbine floor structure
Room, including worm frame and the turbine floor above worm frame；The ground of the turbine floor includes at least two not
With the subregion of elevation；And the elevation of Different Ground subregion is reduced step by step along Factory Building upstream side to Factory Building downstream.
It is further：The ground of the turbine floor includes the subregion of two kinds of different elevations, respectively upstream side water wheels
Machine layer ground and downstream turbine floor ground；And the elevation on upstream side turbine floor ground is higher than downstream turbine floor ground
Elevation.
It is further：The ground of the turbine floor includes the subregion of three kinds of different elevations, respectively upstream side water wheels
Machine layer ground and downstream turbine floor ground and intermediate layer turbine floor ground positioned there between；And three ground distributors
The elevation in area according to upstream side turbine floor ground, intermediate layer turbine floor ground, downstream turbine floor ground order by
Level is reduced.
It is further：Separated using vertical wall wall between the ground subregion of the two neighboring different elevations, and led to
Cross the connection of traffic stair.
It is further：Connected using slope between the ground subregion of the two neighboring different elevations.
The invention has the beneficial effects as follows：By the ground subregion that the ground of turbine floor is divided into different elevations, and
The elevation of Different Ground subregion is reduced step by step along Factory Building upstream side to Factory Building downstream, i.e. the turbine floor ground of Factory Building upstream side
Elevation higher than Factory Building downstream turbine floor ground elevation；So ensure that the spiral case in Factory Building upstream side and downstream
Top plate thickness is satisfied by the design requirement of structural strength and rigidity etc., while and the spiral case top plate thickness in reduction Factory Building downstream；
Therefore concrete amount can be reduced, construction investment is reduced；At the same time it can also increase effective height of Factory Building downstream turbine floor
Degree, increases the space of turbine floor；So as to avoid in the case of turbine floor insufficient space, needs are taken and raise generator floor
The measure such as elevation, the Installation Elevation of electromotor increasing turbine floor space；The main shaft of turbine-generator units can further be shortened
Length, further reduces construction investment.
Description of the drawings
Fig. 1 is the front view of the present invention, while being the sectional view in Fig. 2 shown in B-B hatching lines；
Fig. 2 is the sectional view in Fig. 1 shown in A-A hatching lines；
Fig. 3 is the sectional view under another kind of structure in Fig. 1 shown in A-A hatching lines；
It is labeled as in figure：Cone-plate 14 under worm frame 1, spiral case top board 11, spiral casing flow passage 12, spiral case addendum cone plate 13, spiral case,
Turbine floor 2, upstream side turbine floor ground 21, downstream turbine floor ground 22, intermediate layer turbine floor ground 23, coagulation
Native column 24, Factory Building upstream side 3, Factory Building downstream 4, zone boundary 5, vertical wall wall 51, traffic stair 52, slope 53, railing
54th, fixed guide vane 6, movable guide vane 61, generator shaft 71, rotary wheel of water turbine 72, generator floor 8, floor 81, upstream waterwall
91st, downstream crane wall 92, water inlet gate pier 93, fan housing 10.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention will be further described.
As shown in Figure 1 to Figure 3, the powerhouse of hydropower station of splitlevel turbine floor structure of the present invention, including spiral case
Structure 1 and the turbine floor 2 in the top of worm frame 1；The ground of the turbine floor 2 includes at least two different elevations
Subregion；And the elevation of Different Ground subregion is reduced step by step along Factory Building upstream side 3 to Factory Building downstream 4.
Wherein worm frame 1 is the frame mode for generally adopting in large-scale power station in river channel's Factory Building at present.Such as institute in figure
Show, be provided with worm frame 1 between the upstream waterwall 91 and downstream crane wall 92 of Factory Building, current are from upstream side 3 through entering
Worm frame 1 is flowed into after the runner mouth that mouth of a river gate pier 93 is propped, is flowed along the spiral casing flow passage 12 being gradually curved and narrow, Ran Houjing
Operation path is flowed into after fixed guide vane 6 and movable guide vane 61, while doing work to rotary wheel of water turbine 72,71 turns of generator shaft is driven
Dynamic, generator shaft 71 is connected with the electromotor of top, realizes generating electricity.Worm frame 1 also includes spiral case top board 11, spiral case in figure
Cone-plate 14 under addendum cone plate 13 and spiral case.
It can be seen that the span of worm frame 1 constantly changes with the change of spiral casing flow passage 12, in upstream
The porch of spiral casing flow passage 12, its span is maximum；More toward downstream, while flowing to direction along spiral casing flow passage 12, its span is less；
Therefore, the present invention changes according to the span of worm frame 1, and the ground of turbine floor 2 is divided into into the ground subregion of different elevations,
Where the span of worm frame 1 is big, the ground elevation of corresponding turbine floor 2 is higher, and less in the span of worm frame 1
Place, the ground elevation of corresponding turbine floor 2 is relatively low.So, the upper surface of the ground of turbine floor 2 and worm frame 1 it
Between concrete thickness will be changed according to the elevation of turbine floor 2 and change, that is, the thickness of spiral case top board 11 occurs accordingly
Change, i.e., where the span of worm frame 1 is big, the thickness of spiral case top board 11 is larger, and in the span of worm frame 1 lessly
Side, the thickness of spiral case top board 11 is less.
Significantly it is more than the span in Factory Building downstream 4 in view of span of the usual worm frame 1 in Factory Building upstream side 3, because
This is arranged on the ground of turbine floor 2 to reduce step by step to Factory Building downstream 4 along Factory Building upstream side 3, that is, is arranged to difference
The multi-layer level ground of elevation, each level one elevation of correspondence.For example shown in Fig. 2, the ground of turbine floor 2 is set
Be set to the subregion of two kinds of different elevations, will the ground of turbine floor 2 be divided into two level subregions, respectively upstream side water wheels
Machine layer ground 21 and downstream turbine floor ground 22, upstream side turbine floor 21 is located at Factory Building upstream side 3, the downstream hydraulic turbine
Layer 22 is located at Factory Building downstream 4, and is changed according to the span of worm frame 1, by the elevation on upstream side turbine floor ground 21
It is set above the elevation on downstream turbine floor ground 22.It is of course also possible to according to as shown in Figure 3, by turbine floor 2
Ground is arranged to the subregion of three kinds of different elevations；Respectively upstream side turbine floor ground 21 and downstream turbine floor ground 22
And intermediate layer turbine floor ground 23 positioned there between；And the elevation of three ground subregions is according to upstream side turbine floor
Ground 21, intermediate layer turbine floor ground 23, the order on downstream turbine floor ground 22 are reduced step by step；Using three-level subregion ratio
Concrete material can preferably be saved using two-stage subregion, while make the thickness change gradient of spiral case top board 11 slower, but
It is also to increase certain construction volume accordingly.
In theory, it is optimum state that slope is made on the ground of turbine floor 2, and it can be in the intensity for ensureing worm frame 1
While requirement, concrete materials are saved to greatest extent；It is contemplated that need to place various equipment in turbine floor 2,
Therefore, the ground of turbine floor 2 should not completely make slope；And can be to take to arrange the structure of multilamellar ground subregion to reach
To the more preferably state for saving concrete materials.
In addition, the ground of turbine floor 2 is specifically divided into how many levels, and the position in respective partition boundary line 5 needs basis
Depending on practical situation, it is desirable to which the thickness of the corresponding spiral case top board 11 of Different Ground subregion has to comply with correlation intensity and rigidity will
Ask.Depending on determination such as partition level can be according to the situation of change of the necessary thickness of spiral case top board 11；The change of thickness if necessary
Change is larger, can accordingly arrange more partition level；And the change of necessary thickness is less, then less partition level is set.
In addition, can be separated using vertical wall wall 51 at the zone boundary 5 between the ground subregion of different elevations,
Can also be connected by slope 53；Simultaneously according to the difference in height between two neighboring different elevation ground subregion, phase can be set
The traffic stair 52 answered are facilitating walk.In addition, if the difference in height mistake between two neighboring different elevation ground subregion
Greatly, can be to arrange railing 54 on the edge of the higher side of elevation, to improve safety.
Behind the ground that turbine floor 2 is arranged using classification, the space of whole turbine floor 2 will be increased, it is ensured that
Place the space needed for relevant device.The space of turbine floor 2 generally refers to upstream waterwall shown in figure 91 and downstream is hung
The space that between the car wall 92 and outside of fan housing 10 and the ground of turbine floor 2 and generator floor 8 etc. fences up, whole space
Top be first floor plate 81 that many concrete columns 24 are supported；And the elevation of usual floor 81 and generator floor 8
Elevation is identical.Therefore in the case where identical turbine floor space is needed, tied using splitlevel turbine floor of the present invention
The powerhouse of hydropower station of structure can further reduce the elevation of floor 81, and then the elevation of generator floor 8 is reduced；Such benefit
Can be the length for shortening generator shaft 71；It is expensive due to generator shaft, therefore construction investment can be saved.
For example, by taking certain large-scale power station in river channel's Factory Building as an example, by the way that the ground of its turbine floor 2 is arranged to into two kinds high
The structure of journey, downstream the thickness of side spiral case top board 11 can thinning 2m, that is, by the ground elevation of downstream turbine floor 22
Reduce 2m；So each unit section can about save concrete 670m3If concrete unit price presses 400 yuan/m3Meter, each unit section
Can reduce investment outlay 26.8 ten thousand yuan.In addition, the effective depth of Factory Building downstream turbine floor can be increased, without raising generating
The ground elevation of machine layer 8 and the Installation Elevation of electromotor, can shorten the main axis length of turbine-generator units.By every set main shaft
Contraction in length 2m is calculated, if main shaft unit price is based on 1,000,000 yuan/m, every unit can reduce investment outlay 2,000,000 yuan.So, per platform
The total construction investment of unit can save 226.8 ten thousand.For Large Hydroelectric Power Station Plant, it potentially includes multiple stage unit arranged side by side, because
This total construction investment saved is considerable.
Further below with using the situation of two rank turbine floor ground subregion mentality of designing illustratively of the invention
Process：First, the characteristics of concrete thickness according to needed for the spiral case top board 11 of Factory Building upstream side 3 is significantly greater than Factory Building downstream,
The ground of turbine floor 2 is divided into into two different elevation subregions, respectively upstream side turbine floor ground 21 and downstream water
Turbine layer ground 22；Secondly, the spiral case top board 11 of Factory Building upstream side 3 is considered as into one end and is fixed on upstream waterwall 91, the other end
Freely-supported on hydraulic turbine fixed guide vane 6 or slightly the spiral case top board transverse plate band perpendicular to current direction in downstream, and according to being held
Internal force pressure, structural strength, the life requirement received, determine the spiral case top board 11 of Factory Building upstream side 3 concrete thickness and
The elevation on respective upstream side turbine floor ground 21；Again, according to internal water pressure, structural strength, the life requirement born, really
Determine the concrete thickness of the spiral case top board 11 in Factory Building downstream 4 and the elevation on downstream turbine floor ground 22；Finally, according to
Difference in height situation between two-layer subregion, with reference to practical situation position and the structure of zone boundary 5 are determined, and arrange corresponding traffic
Stair 52 and railing 54.
Claims (5)
1. the powerhouse of hydropower station of splitlevel turbine floor structure, including worm frame (1) and the water above worm frame (1)
Turbine layer (2)；It is characterized in that：The ground of the turbine floor (2) includes the subregion of at least two different elevations；And differently
The elevation of face subregion is reduced step by step along Factory Building upstream side (3) to Factory Building downstream (4).
2. the powerhouse of hydropower station of splitlevel turbine floor structure as claimed in claim 1, it is characterised in that：The turbine floor
(2) ground includes the subregion of two kinds of different elevations；Respectively upstream side turbine floor ground (21) and downstream turbine floor
Ground (22)；And the elevation on upstream side turbine floor ground (21) is higher than the elevation on downstream turbine floor ground (22).
3. the powerhouse of hydropower station of splitlevel turbine floor structure as claimed in claim 1, it is characterised in that：The turbine floor
(2) ground includes the subregion of three kinds of different elevations；Respectively upstream side turbine floor ground (21) and downstream turbine floor
Ground (22) and intermediate layer turbine floor ground (23) positioned there between；And the elevation of three ground subregions is according to upstream
Side turbine floor ground (21), intermediate layer turbine floor ground (23), the order on downstream turbine floor ground (22) drop step by step
It is low.
4. the powerhouse of hydropower station of splitlevel turbine floor structure as claimed any one in claims 1 to 3, it is characterised in that：
Separated using vertical wall wall (51) between the ground subregion of two neighboring different elevations, and connected by traffic stair (52).
5. the powerhouse of hydropower station of splitlevel turbine floor structure as claimed any one in claims 1 to 3, it is characterised in that：
Connected using slope (53) between the ground subregion of two neighboring different elevations.
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| CN201410379751.9A CN104120901B (en) | 2014-08-04 | 2014-08-04 | Hydropower plant of staggered layer type water turbine layer structure |
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| CN201410379751.9A CN104120901B (en) | 2014-08-04 | 2014-08-04 | Hydropower plant of staggered layer type water turbine layer structure |
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| CN104120901B true CN104120901B (en) | 2017-05-10 |
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| US11441530B2 (en) | 2018-12-14 | 2022-09-13 | Carroll Hector, Llc | Pumped storage water electric power generation facilities |
| US11280311B2 (en) | 2018-12-14 | 2022-03-22 | Carroll Hector, Llc | Pumped storage water electric power generation facility and reservoir utilizing coal combustion residuals |
| US11280312B2 (en) | 2018-12-14 | 2022-03-22 | Carroll Hector, Llc | Pumped storage water electric power generation facilities |
| WO2020123941A1 (en) | 2018-12-14 | 2020-06-18 | Go Team CCR LLC | Apparatus and method for generation of electricity with pressurized water and air flow media |
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| CN204001881U (en) * | 2014-08-04 | 2014-12-10 | 中国电建集团成都勘测设计研究院有限公司 | Powerhouse of hydropower station |
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| CN1066712A (en) * | 1991-01-16 | 1992-12-02 | 周彬 | Low water head hydraulic power generating equipment |
| RU2082861C1 (en) * | 1992-04-10 | 1997-06-27 | Товарищество с ограниченной ответственностью "МАГЭС" | Mobile building complex |
| CN1169493A (en) * | 1996-07-02 | 1998-01-07 | 董德平 | Integrated multi-stage hydraulic power station |
| JP4896597B2 (en) * | 2006-06-13 | 2012-03-14 | エア・ウォーター株式会社 | Air component control method for working atmosphere |
| CN102296577B (en) * | 2011-05-27 | 2012-07-04 | 长江勘测规划设计研究有限责任公司 | Embedding technology of volute combination of large hydroelectric generating set |
| CN202323895U (en) * | 2011-11-18 | 2012-07-11 | 中国水电顾问集团成都勘测设计研究院 | Tail water channel structure for stepped hydro-junction |
| CN202830897U (en) * | 2012-09-21 | 2013-03-27 | 中国水电顾问集团华东勘测设计研究院 | Hydropower station underground workshop structure good in vibration resistance performance |
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