CN108625350A - It is a kind of to be arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained - Google Patents
It is a kind of to be arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained Download PDFInfo
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- CN108625350A CN108625350A CN201810746176.XA CN201810746176A CN108625350A CN 108625350 A CN108625350 A CN 108625350A CN 201810746176 A CN201810746176 A CN 201810746176A CN 108625350 A CN108625350 A CN 108625350A
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- suspended load
- pressure
- dark
- pond
- taper
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/04—Free-flow canals or flumes; Intakes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B2201/00—Devices, constructional details or methods of hydraulic engineering not otherwise provided for
- E02B2201/02—Devices and methods for creating a buffer zone in the water to separate, e.g. salt and sweet water
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
It is arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained the invention discloses a kind of, including inducer, outlet section and taper pond section, secretly contain the inducer being connected without pressure with entrance and is disposed with diffuser, diffuser is followed by intake gate and overcurrent lock, intake gate is followed by into water hole, and overcurrent lock is followed by overcurrent canal；Outlet section is disposed with run-off, and what is be arranged side by side with run-off is overcurrent canal, the check gate arranged after run-off and overcurrent canal, arranges converging transition after check gate, contains without pressure is dark at converging transition connection outlet；Taper pond section is laid in between water hole and run-off, including taper pond, taper basin bottom is arranged suspended load and bottom outlet is discharged, and connecting a suspended load with suspended load discharge bottom outlet is discharged gallery, it is communicated into water hole with taper pond, taper pond is communicated by downflow weir with run-off.The present invention implements flow when meeting big flow the separation of suspended load according to the selection of inflow-rate of water turbine size is contained using two parts in this combined system without pressure is dark, and flow passes through when small flow, ensures unit operation.
Description
Technical field
The present invention relates to the suspended load piece-rate systems in hydraulic and hydroelectric engineering, especially a kind of to be arranged in without in the dark culvert of pressure
According to the combined system of flow control suspended load separate mode.
Background technology
It is often advised to prevent the hydraulic turbine from wearing in the general water channeling type power station being built on mountain stream or fully-loaded stream
Surely enter the maximum license suspended load grain size and content of the hydraulic turbine.When the flow that generates electricity cannot be met the requirements, it is necessary to be arranged suspended
Matter detaches pool construction.The operation principle of common suspended load separation pool construction is by increasing the cross-section of river, reducing flow
Flow velocity reduces sediment transport capacity, and the suspended load for being more than the minimum sedimentation diameter of design in sediment laden flow is made to be deposited in pond, and
Clear water is introduced into channel.For the water turbine set of rated head 300m or so, design minimum sedimentation diameter be 0.25mm~
0.10mm.Build common suspended load separation pool construction, it will occupy a large amount of areas, increase construction investment, and the structure is past
Toward being arranged on flume, upstream and downstream is all open channel, takes the mode of open cut.If arranged in a conventional manner：One, it will produce
Raw a large amount of high slope, brings more security risk, while the supporting of side slope can also expend great amount of investment；Two, it builds big
The pool construction of scale takes up an area, takes, invests greatly.In addition to this, individually arrangement suspended load detaches pool construction, in operation
There is inconvenience.First, according to suspended load detach pool construction scale, best effort flow be it is substantially stationary, only
In the presence of smaller luffing：When in flood season, best effort flow of the flow more than suspended load separation pond is carried out in upstream, can largely effect on
The working effect in pond even will produce unrestrained top when serious；On the contrary, when being in non-flood period, it is smaller to carry out flow, can not meet point
Operating flow range from pond, flow can be greatly increased by separation pond water consumption, bring serious economic loss.Its
It is secondary, it when suspended load content is relatively low in incoming, is not required to carry out suspended load separation again, flow instead can by suspended load separation pond
Unnecessary flow loss is generated, efficiency of generating unit is reduced.
Invention content
The technical problem to be solved by the present invention is to, provide a kind of with strong applicability, excavation project amount it is smaller be arranged in nothing
The combined system according to flow control suspended load separate mode that pressure is dark to be contained.
The technical solution adopted in the present invention is：It is a kind of to be arranged in without being detached according to flow control suspended load in the dark culvert of pressure
The combined system of mode, including inducer, outlet section and taper pond section are secretly contained the inducer being connected without pressure with entrance and are arranged
There are diffuser, diffuser to be followed by intake gate and overcurrent lock, intake gate is followed by into water hole, and overcurrent lock is followed by overcurrent canal；Outlet section cloth
It is equipped with run-off, what is be arranged side by side with run-off is overcurrent canal, the check gate arranged after run-off and overcurrent canal, cloth after check gate
Converging transition is set, is secretly contained without pressure at converging transition connection outlet；Taper pond section is laid in between water hole and run-off, including taper
Pond, taper basin bottom are arranged suspended load and bottom outlet are discharged, and connecting a suspended load with suspended load discharge bottom outlet is discharged gallery, water inlet
Hole is communicated with taper pond, and taper pond is communicated by downflow weir with run-off.
For the entrance without inducer transition is provided between the dark culvert of pressure and diffuser, converging transition is dark without pressure with exit
Outlet section transition is provided between culvert, to ensure that secretly containing without pressure for upstream and downstream connect smooth-going with diffuser, converging transition.
The base slope in the taper pond is 1:5~1:Between 10, the suspended load of taper basin bottom connection excludes gallery and adopts
With certain slope, ensure that streamflow does not pour in down a chimney and utmostly takes away suspended load.
Taper pond side is arranged one fixed width flow adjustable plate, adjustable plate arrangement range cover into water hole hole and
Downflow weir, adjustable plate lower section setting concrete column are connected with taper pond baseboard.
Beneficial effects of the present invention：Not only the arrangement requirement of suspended load separation had been met, but also has reduced high slope rockmass engineering
Amount, reduces construction investment, is conducive to the safety of side slope, ensure that power station operational safety.When flow is carried out in separation pond in upstream
Optimum operation range of flow in when, can close overcurrent lock, open intake gate, check gate, the work of separation pond, suspended load warp
Pond is segregated into suspended load discharge gallery and is discharged downstream river, and clear water imports downstream without the dark culvert of pressure, under reduction through check gate
Swim the abrasion of water turbine set；When upstream incoming is smaller or come flow silt content it is relatively low when, can select close intake gate, open
Overcurrent lock allows incoming to be directly over overcurrent canal and imports downstream without the dark culvert of pressure, to improve the economic benefit in power station.When upstream water control
Thrashing processed leads to come that flow is excessive, and being more than separation pond operating flow range can basis under the premise of opening intake gate
Uninterrupted situation adjusts overcurrent lock aperture, and incoming is let out under appropriate, allows extra flow to be directly over overcurrent canal and imports downstream without pressure
It is dark to contain, with the operational safety in protection separation pond.
Description of the drawings
Fig. 1 is that the present invention is arranged in without the combined system structure according to flow control suspended load separate mode that pressure is dark to be contained
Schematic diagram.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and detailed description：
As shown in Figure 1, the present invention's is arranged in without the combination according to flow control suspended load separate mode that pressure is dark to be contained
System, including inducer, outlet section and taper pond section secretly contain the inducer that 1 is connected without pressure with entrance and are disposed with diffuser
3, diffuser is followed by intake gate 4 and overcurrent lock 5, and intake gate 4 is followed by into water hole 6, and overcurrent lock 5 is followed by overcurrent canal 7；Outlet section is arranged
There is run-off 8, what is be arranged side by side with run-off 8 is overcurrent canal 7, the check gate 9 arranged after run-off 8 and overcurrent canal 7, check gate
Converging transition 10 is arranged after 9, contains 21 without pressure is dark at 10 connection outlet of converging transition；Taper pond section is laid in into water hole 6 and run-off 8
Between, including taper pond 11, taper basin bottom is arranged suspended load and bottom outlet 12 is discharged, and one is connect with suspended load discharge bottom outlet 12
Gallery 13 is discharged in suspended load, is communicated into water hole 6 with taper pond 11, taper pond 11 is communicated by downflow weir with run-off 8.
The entrance, which is secretly contained without pressure between 1 and diffuser 3, is provided with inducer transition 2, converging transition 10 and exit
Without pressure is dark contain 21 between be provided with outlet section transition 22, to ensure containing and diffuser 3, converging transition 10 without pressure is dark for upstream and downstream
Connection smooth-going.
The base slope in the taper pond 11 is 1:5~1:Between 10, the suspended load of taper basin bottom connection excludes gallery
13 use certain slope, ensure that streamflow does not pour in down a chimney and utmostly takes away suspended load.
One fixed width flow adjustable plate is arranged in 11 side of taper pond, and adjustable plate arrangement range is covered into water hole hole
And downflow weir, adjustable plate lower section setting concrete column are connected with taper pond baseboard.
Arrangement intake gate 4, overcurrent lock 5 are needed after diffuser 3 of the present invention, to meet this structure traffic control requirement.It overflows
Stream 8 downstream of pond need to arrange check gate 9, and flow backwards enter in taper pond 11 and flow away when preventing from closing intake gate 4.Check gate
9 downstreams need to arrange converging transition 10, be required with meeting structure width variation.Needed after transition arrangement diffuser 3, with meet subsequently into
Sluice 4, the requirement of 5 structure width of overcurrent lock.The present invention by topographic and geologic condition suitable for being influenced, being arranged in underground without the dark culvert of pressure
Flow, need that its suspended load detach and the case where need to control water.
Wherein taper pond is a conical pond, and bottom is arranged suspended load and bottom outlet, pool edge arrangement is discharged
Barricade is arranged within the scope of 180 °, downflow weir is in addition arranged in 180 °, is connected with inclined plate between downflow weir and check gate, for overflow
Pond.Flow adjustable plate is arranged in the taper pond, and flow adjustable plate range is covered into water hole import and entire downflow weir region.Institute
It states and gallery is set below the suspended load discharge bottom outlet of taper pond, after suspended load is discharged into suspended load discharge bottom outlet by flow action,
River is discharged into gallery to drain.The present invention chooses whether using this structure according to flow to meet to without the dark water contained in structure of pressure
Stream implements the separation of suspended load, this structure arranges flow smooth-going, and head loss is small, and floor space is few, in addition detaches suspended load mistake
Water consumption is few in journey；Structure economics are applicable in, and ensure that unit operation safety.
The present invention is different from the setting method of conventional suspended load separation pool construction, by suspended load separation pool construction arrangement
Contain dark without pressure, upstream and downstream is arranged for non-open channel, does not in addition detach pond using traditional suspended load, utilizes round pool knot
Water flow rotary is utilized eddy flow, vortex separation suspended load by structure.The method is preferably resolved in coating area, geological conditions
It is bad, the big disadvantage of slope retaining amount.Secondly, round pool suspended load separation pool construction takes up little area, excavation supporting quantities
Few, sand discharge rate is high, and water consumption is low.In addition, upstream intake gate 4 can control into separation pond water, when come flow it is smaller and
It when sediment charge is relatively low, may be selected to close intake gate 4, open overcurrent lock 5, flow is directly entered downstream without separation pond,
To reduce non-flood period water loss.
It is described in detail with reference to specific embodiment：
, without pressure diversion power plant project, power station total installation of generating capacity 160MW, rated head 279m are total to quote flow 66m for certain3/s。
Key construction includes the buildings such as head pivot, diversion system, ground workshop composition.Intake gate, diversion is arranged in head pivot
Open channel, flood discharge scouring sluice, sluicing open channel, by-pass canal, without pressure dark culvert, settling pit, forebay.The power station runoff supply is with high mountain
Based on the accumulated snow melt water of glacier, flood is largely the snow melting flood formed by snowmelt runoff, and temperature on average is for many years for this area
2.4 DEG C, maximum depth of frozen ground 110cm.According to being averaged for many years at the area hydrometric station silt information calculation intake gate, sediment transport total amount is
6240000 t.
Therefore using the present invention without arrangement suspended load separation pool construction arrangement in the dark culvert of pressure.As shown in Figure 1, in import
Inducer transition 2 is arranged without dark 1 end of containing of pressure in place；2 horizontal length 10m of inducer transition, base slope use 0.1%；Import
Section 2 Outlet Section of transition is overlapped with 3 upstream abutment wall of inducer diffuser, and base slope uses 1：25；End and intake gate and overcurrent
Lock is connected, and pocket floor elevation is respectively 2150.079m and 2151.230m；Intake gate and overcurrent lock are followed by into water hole 6 and overcurrent canal
7；It is directly accessed taper pond 11 into water hole, flow adjustable plate is arranged in pool edge, and basin bottom is arranged suspended load and bottom outlet is discharged
12 for draining suspended load, and it is 2143.499m that bottom orifice elevation, which is discharged, in suspended load, and suspended load, which is discharged below bottom outlet, connects suspended load
Gallery 13 is discharged, suspended load is discharged gallery and leads to downstream river course；Downflow weir is set after the flow adjustable plate of taper pond, and downflow weir is high
Journey is 2154.279m, and downflow weir is followed by run-off 8, and run-off side arrangement helps arm-type barricade, the other side to arrange overcurrent canal 7, overflows
Stream bottom of pond slope takes 0.2%, and run-off downstream connects check gate 9, to prevent flow backwards, check gate floor elevation 2151.112m, mistake
Stream canal and check gate connect the converging transition 10 in downstream simultaneously, and outlet section transition 22 is arranged after converging transition, is accessed out after transition
Secretly contain 21 without pressure at mouthful.
This system is primarily present three kinds of operating conditions：
Operating mode one is accidental conditions, and applicable elements carry out the normal operation range that flow meets separation pond for upstream,
Flow suspended load content is high.Needed in operation open intake gate, close overcurrent lock, open check gate, water flow through intake gate enter point
From pond, suspended load is discharged gallery by suspended load and is discharged downstream river, and clear water enters run-off through detaching pond overflow, passes through
Check gate imports downstream and is used for power generation without the dark culvert of pressure.
Operating mode two is inoperative operating mode, and it is lower that applicable elements for upstream carry out suspended load content during flow is smaller or flow
Situation.This operating mode need to close intake gate, open overcurrent lock, and closing check gate prevents flow backwards, upper water stream from passing through overcurrent lock
Into overcurrent canal, directly imports the boundless dark culvert in downstream and used for power generation.
Operating mode three is flood season sluicing operating mode, and applicable elements carry out the normal operation range that flow is more than separation pond for upstream.
This operating mode need to open intake gate, and overcurrent lock aperture is adjusted according to uninterrupted is carried out, and flow divides two-way, enter all the way separation pond,
Downflow weir, overflow pond, check gate are crossed, enters overcurrent canal all the way and imports downstream, it is boundless dark that two-way flow finally all imports downstream
Contain.
Embodiment described above is merely to illustrate the technological thought and feature of the present invention, in the art its object is to make
Technical staff it will be appreciated that present disclosure and implement according to this, the patent model of the present invention cannot be only limited with the present embodiment
It encloses, i.e., same changes or modifications made by all disclosed spirit, still falls in the scope of the claims of the present invention.
Claims (4)
1. a kind of be arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained, including inducer,
Outlet section and taper pond section, which is characterized in that the inducer being connected without the dark culvert (1) of pressure with entrance is disposed with diffuser (3),
Diffuser is followed by intake gate (4) and overcurrent lock (5), and intake gate (4) is followed by into water hole (6), and overcurrent lock (5) is followed by overcurrent canal (7)；
Outlet section is disposed with run-off (8), and what is be arranged side by side with run-off (8) is overcurrent canal (7), after run-off (8) and overcurrent canal (7)
The check gate (9) of arrangement, check gate (9) arrange converging transition (10) afterwards, contain (21) without pressure is dark at converging transition (10) connection outlet；Cone
Shape pond section is laid in between water hole (6) and run-off (8), including taper pond (11), and taper basin bottom is arranged suspended
Bottom outlet (12) is discharged in matter, suspended load discharge gallery (13) is connect with suspended load discharge bottom outlet (12), into water hole (6) and taper water
Pond (11) communicates, and taper pond (11) are communicated by downflow weir with run-off (8).
2. being arranged according to claim 1 without the combination system according to flow control suspended load separate mode that pressure is dark to be contained
System, which is characterized in that the entrance, which is secretly contained without pressure between (1) and diffuser (3), is provided with inducer transition (2), tapered
Section (10) and exit without pressure it is dark contain be provided with outlet section transition (22) between (21), with ensure upstream and downstream without the dark culvert of pressure
It connect smooth-going with diffuser (3), converging transition (10).
3. being arranged according to claim 1 without the combination system according to flow control suspended load separate mode that pressure is dark to be contained
System, which is characterized in that the base slope of the taper pond (11) is 1:5~1:Between 10, the suspended load of taper basin bottom connection
It excludes gallery (13) and uses certain slope, ensure that streamflow does not pour in down a chimney and utmostly takes away suspended load.
4. being arranged according to claim 1 without the combination system according to flow control suspended load separate mode that pressure is dark to be contained
System, which is characterized in that taper pond (11) side is arranged one fixed width flow adjustable plate, adjustable plate arrangement range cover into
Water hole hole and downflow weir, adjustable plate lower section setting concrete column are connected with taper pond baseboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810746176.XA CN108625350A (en) | 2018-07-09 | 2018-07-09 | It is a kind of to be arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810746176.XA CN108625350A (en) | 2018-07-09 | 2018-07-09 | It is a kind of to be arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108625350A true CN108625350A (en) | 2018-10-09 |
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ID=63688802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810746176.XA Pending CN108625350A (en) | 2018-07-09 | 2018-07-09 | It is a kind of to be arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained |
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| CN (1) | CN108625350A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157358A (en) * | 1996-11-23 | 1997-08-20 | 新疆农业大学水利水电设计研究所 | Sand discharge funnel |
| CN2673955Y (en) * | 2004-01-17 | 2005-01-26 | 新疆水利水电科学研究院 | Vortex circulation sand-removing device |
| CN102505670A (en) * | 2011-09-16 | 2012-06-20 | 李建英 | Method for densely building hydroelectric power station and hydroelectric power station capable of being densely built |
| CN104846789A (en) * | 2015-06-03 | 2015-08-19 | 安徽理工大学 | Symmetric rotational-flow desilting pool |
| CN105735203A (en) * | 2016-05-04 | 2016-07-06 | 安徽理工大学 | Desilting canal |
| CN208733588U (en) * | 2018-07-09 | 2019-04-12 | 中国电建集团北京勘测设计研究院有限公司 | It is a kind of to be arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained |
-
2018
- 2018-07-09 CN CN201810746176.XA patent/CN108625350A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1157358A (en) * | 1996-11-23 | 1997-08-20 | 新疆农业大学水利水电设计研究所 | Sand discharge funnel |
| CN2673955Y (en) * | 2004-01-17 | 2005-01-26 | 新疆水利水电科学研究院 | Vortex circulation sand-removing device |
| CN102505670A (en) * | 2011-09-16 | 2012-06-20 | 李建英 | Method for densely building hydroelectric power station and hydroelectric power station capable of being densely built |
| CN104846789A (en) * | 2015-06-03 | 2015-08-19 | 安徽理工大学 | Symmetric rotational-flow desilting pool |
| CN105735203A (en) * | 2016-05-04 | 2016-07-06 | 安徽理工大学 | Desilting canal |
| CN208733588U (en) * | 2018-07-09 | 2019-04-12 | 中国电建集团北京勘测设计研究院有限公司 | It is a kind of to be arranged in without the combined system according to flow control suspended load separate mode that pressure is dark to be contained |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221215 Address after: 100024 Beijing city Chaoyang District, 1 West Street Applicant after: POWERCHINA BEIJING ENGINEERING Corp.,Ltd. Applicant after: Xinjiang Xinhua muzati River Hydropower Development Co.,Ltd. Address before: 100024 Beijing city Chaoyang District, 1 West Street Applicant before: POWERCHINA BEIJING ENGINEERING Corp.,Ltd. |
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| TA01 | Transfer of patent application right |