CN101418562B - Adjustable intake apparatus for hydraulic power plant - Google Patents
Adjustable intake apparatus for hydraulic power plant Download PDFInfo
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- CN101418562B CN101418562B CN200810227667XA CN200810227667A CN101418562B CN 101418562 B CN101418562 B CN 101418562B CN 200810227667X A CN200810227667X A CN 200810227667XA CN 200810227667 A CN200810227667 A CN 200810227667A CN 101418562 B CN101418562 B CN 101418562B
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- Prior art keywords
- buoyancy tank
- section
- water inlet
- intake apparatus
- ball joint
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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 relates to an adjustable water inlet device for a hydropower station, which is characterized in that the adjustable water inlet device for the hydropower station comprises a spherical strainer, a trumpet water inlet section, a control gate valve, a floating box assembly section, an adjusting section and an elbow pipe section, wherein a floating box is connected to the floating box assembly section; lower parts of the adjusting section and the elbow pipe section are provided with U-shaped floating blocks of a floating pipeline respectively; both sides of the floating box are connected to a mooring line device through steel cables respectively; the adjusting section consists of an upstream spherical universal joint, a downstream spherical universal joint and a connecting pipe which connects the upstream spherical universal joint and the downstream spherical universal joint; and an outlet of the elbow pipe section is connected with a fixed water conduit of a river bank. The adjustable water inlet device for the hydropower station does not require a matched dam project to maintain the underwater embedded depth of a water inlet, does not obstruct a river channel, is favorable for maintaining natural ecology of the river channel, and is widely suitable for the water inlet of a small diversion type hydropower station.
Description
Technical field
The present invention relates to a kind of intake apparatus, particularly about a kind of small-sized no dam run-of-river power station adjustable intake apparatus that is applicable to.
Background technology
Water inlet is the key position of power station diversion system, and its structural shape and flow shape complexity are that current enter one of requisite hydraulic structure of pressure conduit from natural river course.Water inlet generally is divided into inducer, gate bay and transition section.The water inlet of conventional hydropower station is fixed water inlet.Because the water level difference of Various Seasonal natural river course or reservoir, in order to guarantee under any circumstance all energy diversion and powers, water inlet is generally selected in the following deep water of upstream level of dead water, be dykes and dams or the lower position of riverbank elevation, therefore cause gate pressure-bearing height, required in the big and water of hoisting capacity problems such as sediment charge height.
In order to prevent that floating thing and other dirt from entering the hydraulic turbine, generally to trashrack be set at the water inlet front end, the form of trashrack and the cross-section of river have certain influence to flow shape and discharge capacity.In order to prevent water inlet by the silt silting, nothing is compressed into the mouth of a river sand trap and scouring basin will be set; Dam formula water inlet will be provided with flushing sluice below the water inlet elevation.Have only tower intake to realize drawing the water of getting different elevations, but water inlet structure is more complicated, and structure is towering isolates in water, is subject to seismic forces and the ice fail in shear that expands, generally need link to each other with bank slope by service bridge by the stratified pumping gate.
Water inlet is fixed in the riverbank or forms one (as shown in Figure 5) with gravity dam in the diversion system of at present domestic and international existing conventional power station, and water inlet mainly is made up of trashrack A1, square loudspeaker inducer A2, gate bay A3 and transition section A4.It is provided with gate A5, gate slot A6 and opening and closing device A7.This diversion system complex structure, price is high.In order to guarantee to fetch water in low water stage dry season, the general elevation of water inlet is lower, often brings silt alluvial problem.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of gate slot, gate opening/closing equipment and desilting sand surfing engineering services that need not to be provided with conventional water inlet, can reduce the adjustable intake apparatus for hydraulic power plant of construction costs greatly.
For achieving the above object, the present invention takes following technical scheme: a kind of adjustable intake apparatus of power station is characterized in that: it comprises a sphere garbage barrier net, loudspeaker water inlet section, control gate valve, buoyancy tank construction section, adjusting section and the bend loss that connects successively; Be connected with a buoyancy tank on the described buoyancy tank construction section, the described bottom of regulating section and bend loss is respectively arranged with the U type floating block of supporting pipeline, the both sides of described buoyancy tank are connected on the warping appliances by wirerope respectively, described adjusting section is by upstream card ball joint, downstream card ball joint and be connected described upstream card ball joint and the tube connector of downstream card ball joint constitutes, and described bend loss outlet connects the fixedly conduit pipe on riverbank.
Described buoyancy tank top is provided with a control valve, and described buoyancy tank bottom is provided with a delivery port, is provided with wirerope system ring in described buoyancy tank both sides, is provided with the water that can regulate buoyancy in the described buoyancy tank.
Described warping appliances comprises and being arranged on the bank or the piling bar in the water, is enclosed within the slippage floating ring on the described piling bar, and described wirerope ties up on the described slippage floating ring.
Described round speaker inducer is formed by connecting by horn mouth and straight tube, and described horn mouth is made of the surfaces of revolution of 1/4 elliptic curve.
The present invention is owing to take above technical scheme, and it has the following advantages: 1, therefore the present invention can adapt to the variation of nature water level owing to be provided with a buoyancy tank; In buoyancy tank, fill water, adjusting by water level in the buoyancy tank, can realize the selection of water layer, water inlet section of the present invention can maintain the following suitable depth of immersion of the water surface and regulate the water intaking angle, get the less clean water of sand content to guarantee that Various Seasonal all can be drawn, avoid channel deposits alluvial and water inlet silting problem, reduced desilting and sand surfing engineering.2, the present invention is provided with upstream card ball joint, downstream card ball joint and is connected tube connector between the card ball joint of upstream and downstream regulating section, therefore when river water level rises, the upstream card ball joint can rotate a corner, drives the downstream card ball joint by tube connector simultaneously and rotates in the opposite direction; When river water level descends, regulate section and just can regulate in the opposite direction.3, the horn mouth of round speaker inducer of the present invention is that the surfaces of revolution by 1/4 elliptic curve constitutes, flow shape is good, head loss is little, inlet flow rate is by the control of control gate valve, therefore do not need the conventional gate slot that opens and closes gate etc., avoid the complicated construction of transition section in the prior art, can reduce construction costs greatly.4, the present invention connects the sphere garbage barrier net at the upstream extremity of round speaker inducer, and than traditional plane trashrack, not only discharge capacity is strong, and structure stress is reasonable.5, the present invention does not have the backwater of dam barrage, the water inlet elevation is with water surface fluctuation in stage, do not need supporting with it dam construction to keep the buried depth under water of water inlet, do not stop the river course, water inlet is adjustable to be in face of the channel thread direction, can make the part kinetic energy of current in pressure pipeline, be converted into pressure energy, can make full use of the kinetic energy of current.The present invention can be widely used in the water inlet of small-sized run-of-river power station.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a structural plan of the present invention schematic diagram
Fig. 3 is the thin portion of a round speaker inducer of the present invention schematic diagram
Fig. 4 is a floating box structure schematic diagram of the present invention
Fig. 5 is a kind of intake of hydropower station schematic diagram of the prior art
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention includes sphere garbage barrier net 1, round speaker inducer 2, control gate valve 3, buoyancy tank construction section 4, adjusting section 5 and the bend loss 6 that connects successively.Current enter round speaker inducer 2 after filtering through sphere garbage barrier net 1, and the control gate valve 3 of flowing through, buoyancy tank construction section 4, adjusting section 5 and bend loss 6 enter fixedly conduit pipe.Connect a buoyancy tank 7 on buoyancy tank construction section 4, the both sides of buoyancy tank 7 are connected on the warping appliances 9 of two sides by wirerope 8 respectively.The bottom of regulating section 5 and bend loss 6 is respectively arranged with the U type floating block 10,11 of supporting pipeline, and the weight of whole intake apparatus is kept balance by the buoyancy of buoyancy tank 7 and two U type floating blocks 10,11.Because buoyancy, round speaker inducer 2 can change and lifting with river water level.
As shown in Figure 3, round speaker inducer 2 of the present invention is formed by connecting by horn mouth 21 and straight tube 22.Horn mouth 21 is that the surfaces of revolution by 1/4 elliptic curve constitutes.Round speaker inducer 2 of the present invention is owing to flow is controlled by control gate valve 3, do not need conventional open and close the gate slot of gate, square loudspeaker inducer and be circular transition section, therefore, can directly adopt circular water inlet by square transition, make flow shape good, head loss is little.Upstream extremity at round speaker inducer 2 connects sphere garbage barrier net 1, and than traditional plane trashrack, not only discharge capacity is strong, and structure stress is reasonable.
As shown in Figure 4, buoyancy tank 7 of the present invention can adopt the seal case of alloy aluminum board making, and buoyancy tank 7 also can adopt other material, as long as strength and stiffness meet the demands, density is low, not corrosion, material that anti-ultraviolet function is good all can.The present invention is provided with a control valve 71 at buoyancy tank 7 tops, in buoyancy tank 7 bottoms a delivery port 72 is set, and wirerope system ring 73 is set respectively in buoyancy tank 7 both sides, is provided with the water that can regulate the buoyancy size in the buoyancy tank 7.Buoyancy tank 7 is connected on the buoyancy tank linkage section 4 by U type connector 74, and encircles 73 wireropes 8 that connect and warping appliances 9 and impulsive force balance by both sides wirerope system.Change the water level in the buoyancy tank 7, the depth of the water submerging of adjustable pitch circle shape loudspeaker inducer 2, and then regulate section 5 and can make corresponding adjusting.Water level in the buoyancy tank 7 changes and can realize by the gas pressure size on buoyancy tank 7 tops.In buoyancy tank 7 during supercharging, the water under the Compressed Gas effect in the buoyancy tank 7 is discharged through delivery port 72 by control valve 71, water tank 7 come-ups, and round speaker inducer 2 depth of immersions reduce; When the gas pressure in the buoyancy tank 7 reduced, because the vacuum action current enter buoyancy tank 7 by delivery port 72, buoyancy tank 7 sank, and round speaker inducer 2 depth of immersions increase.Because the present invention utilizes buoyancy tank 7 buoyancy function that water inlet can be changed with river water level, and change the buried depth under water of adjustable intakes, to obtain the water of the less water layer of sand content by fluctuations in stage in the buoyancy tank 7.
As shown in Figure 2, the present invention's warping appliances 9 of being positioned at both sides, buoyancy tank 7 upstream is positioned buoyancy tank 7 main flow area of river course central authorities.Warping appliances 9 comprises piling bar 91 and the slippage floating ring 92 that is enclosed within on the piling bar 91, and wirerope 8 ties up on the slippage floating ring 92, and slippage floating ring 92 fluctuates along piling bar 91 with the river water level variation.By the length of flexible wirerope 8, and, can realize the angular adjustment of water inlet at horizontal plane in conjunction with the rotation of regulating section 5.Because streamflow is not built a dam to block and had certain kinetic energy, the control of water inlet adjustable angle is in face of the channel thread direction, the kinetic energy of current can be converted into pressure energy in pressure pipeline, improves productive head.The water inlet that the bank is fixed in the present invention can utilize the part kinetic energy of current more.
As shown in Figure 1 and Figure 2, adjusting of the present invention section 5 is made of upstream card ball joint 51, downstream card ball joint 52 and tube connector 53.When river water level rising h, upstream card ball joint 51 rotates corresponding corner α, drives tube connector 53 and downstream card ball joint 52 equal angles rotation in the opposite direction.In like manner, when river water level decline h, the adjusting direction of regulating section 5 is opposite.Therefore, but the corner α of the length L of the amplitude of accommodation H that regulates section 5 and tube connector 53 and two card ball joints 51,52 is relevant, and when length L one timing of tube connector 53, adjustable amplitude peak is H
Max=2h=2Lsin α
MaxBy universal joint 51,52 angular turn and tube connector 53 length adjustment, to realize adjustable intake and fixing being connected of conduit pipe.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. the adjustable intake apparatus in a power station is characterized in that: it comprises the sphere garbage barrier net, round speaker inducer, control gate valve, the buoyancy tank construction section that connect successively, regulates section and bend loss; Be connected with a buoyancy tank on the described buoyancy tank construction section, the described bottom of regulating section and bend loss is respectively arranged with the U type floating block of supporting pipeline, the both sides of described buoyancy tank are connected on the warping appliances by wirerope respectively, described adjusting section is by upstream card ball joint, downstream card ball joint and be connected described upstream card ball joint and the tube connector of downstream card ball joint constitutes, and described bend loss outlet connects the fixedly conduit pipe on riverbank.
2. the adjustable intake apparatus in a kind of power station as claimed in claim 1, it is characterized in that: described buoyancy tank top is provided with a control valve, described buoyancy tank bottom is provided with a delivery port, is provided with wirerope system ring in described buoyancy tank both sides, is provided with the water that can regulate buoyancy in the described buoyancy tank.
3. the adjustable intake apparatus in a kind of power station as claimed in claim 1 or 2 is characterized in that: described warping appliances comprises and being arranged on the bank or the piling bar in the water, is enclosed within the slippage floating ring on the described piling bar, and described wirerope ties up on the described slippage floating ring.
4. the adjustable intake apparatus in a kind of power station as claimed in claim 1 or 2, it is characterized in that: described round speaker inducer is formed by connecting by horn mouth and straight tube, and described horn mouth is made of the surfaces of revolution of 1/4 elliptic curve.
5. the adjustable intake apparatus in a kind of power station as claimed in claim 3, it is characterized in that: described round speaker inducer is formed by connecting by horn mouth and straight tube, and described horn mouth is made of the surfaces of revolution of 1/4 elliptic curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810227667XA CN101418562B (en) | 2008-11-28 | 2008-11-28 | Adjustable intake apparatus for hydraulic power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810227667XA CN101418562B (en) | 2008-11-28 | 2008-11-28 | Adjustable intake apparatus for hydraulic power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418562A CN101418562A (en) | 2009-04-29 |
| CN101418562B true CN101418562B (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810227667XA Expired - Fee Related CN101418562B (en) | 2008-11-28 | 2008-11-28 | Adjustable intake apparatus for hydraulic power plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN101418562B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397543A (en) * | 2018-04-24 | 2019-11-01 | 上海广谋能源技术开发有限公司 | A kind of hydroelectric installation |
| CN109371930B (en) * | 2018-12-10 | 2024-01-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Bulb-shaped dirt blocking structure of sewer pipeline |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073146A (en) * | 1975-07-14 | 1978-02-14 | Gutierrez Atencio Francisco Jo | Submersible diffuser |
| US4170428A (en) * | 1977-07-11 | 1979-10-09 | Atencio Francisco J G | Dam with suspended hydroelectric station |
| CN1924201A (en) * | 2005-09-02 | 2007-03-07 | 律天龙 | Tube stream type reservoir power plant |
| JP2007277808A (en) * | 2006-04-03 | 2007-10-25 | Chubu Electric Power Co Inc | Intake control system |
-
2008
- 2008-11-28 CN CN200810227667XA patent/CN101418562B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073146A (en) * | 1975-07-14 | 1978-02-14 | Gutierrez Atencio Francisco Jo | Submersible diffuser |
| US4170428A (en) * | 1977-07-11 | 1979-10-09 | Atencio Francisco J G | Dam with suspended hydroelectric station |
| CN1924201A (en) * | 2005-09-02 | 2007-03-07 | 律天龙 | Tube stream type reservoir power plant |
| JP2007277808A (en) * | 2006-04-03 | 2007-10-25 | Chubu Electric Power Co Inc | Intake control system |
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| Publication number | Publication date |
|---|---|
| CN101418562A (en) | 2009-04-29 |
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Granted publication date: 20100609 Termination date: 20121128 |