CN108677894A - It is a kind of to utilize pipeline type karstic ground water electricity generation system and design method - Google Patents
It is a kind of to utilize pipeline type karstic ground water electricity generation system and design method Download PDFInfo
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- CN108677894A CN108677894A CN201810526213.6A CN201810526213A CN108677894A CN 108677894 A CN108677894 A CN 108677894A CN 201810526213 A CN201810526213 A CN 201810526213A CN 108677894 A CN108677894 A CN 108677894A
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- 230000005611 electricity Effects 0.000 title claims abstract description 33
- 239000003673 groundwater Substances 0.000 title claims abstract description 22
- 238000013461 design Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000004576 sand Substances 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000011161 development Methods 0.000 claims abstract description 39
- 238000010248 power generation Methods 0.000 claims description 38
- 238000010276 construction Methods 0.000 claims description 11
- 239000013049 sediment Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 239000011435 rock Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 108091006146 Channels Proteins 0.000 description 32
- 238000011049 filling Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000029142 excretion Effects 0.000 description 3
- 239000011499 joint compound Substances 0.000 description 3
- 102000010637 Aquaporins Human genes 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
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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
Abstract
The present invention relates to a kind of underground karst systems, and pipeline type karstic ground water electricity generation system and design method are utilized more particularly, to a kind of.It is a kind of to utilize pipeline type karstic ground water electricity generation system, including karst, by being equipped with sump and setting pot by the minimum development point of karst, sump is connected to by the drainage gallery that generates electricity with the minimum development point of karst, setting pot is connected to by sand discharge channel with the minimum development point of karst, to in karst silt and water realize shunting, the silt silting in karst can be prevented；The drainage gallery that generates electricity is equipped with generating set, the overflow ducts being connected to the natural river course below massif are equipped with above the minimum development point of karst, overflow ducts are equipped with draining control gate valve, it can convert water to electric energy by generating set, and productive head and flow can be protected with adjusting control, the stability and reliability of system operation；System arrangement is simple, has preferable operation and maintenance condition.
Description
Technical field
The present invention relates to a kind of underground karst systems, and pipeline type karstic ground water electricity generation system is utilized more particularly, to a kind of
And design method.
Background technology
Underground karst system is extremely developed in Southwestern China area.By Karst Features, pipeline type, crack type can be divided into.
For pipeline type karst, and cavity type can be divided into, silt packed type, spend situations such as water type, mixed filling type.Under normal circumstances,
Pipeline type Karst filling material is in the majority with mud, sand, water mixed filling.
Underground engineering, the harm in order to avoid pipeline type karst to engineering, common processing mode are built in karst area
It is to change to fill out concrete, the direct fill concrete of corrosion cavity after excavating Karst filling material, while by karst water ejectment to engineering
It is drained as waste water other than the zone of influence.
The pipeline type karst stable and larger drop clearly for water recharging, if karst water is directly discarded excretion,
It will cause the serious waste of hydraulic power potentials.Especially for the pipeline type karst that flow is larger, this waste is especially prominent.
Thus, it would be highly desirable to work out a kind of technology that can make full use of Karst ground water resources and applied to practical.
Invention content
In order to solve the above problem, the present invention provides a kind of utilization pipeline type of achievable Karst ground water resources comprehensive utilization
Karstic ground water electricity generation system and design method.
The technical solution adopted by the present invention is：It is a kind of to utilize pipeline type karstic ground water electricity generation system, including karst,
It is characterized in that：Sump and setting pot are equipped with by the minimum development point of the karst, the sump is let out by power generation
Aquaporin is connected to the minimum development point of karst, and the power generation between the sump and the minimum development point of karst is let out
Aquaporin is equipped with generating set, and the sump is connected to by inclined shaft with the natural river course below massif；The setting pot is logical
It crosses sand discharge channel to be connected to the minimum development point of karst, the row between the setting pot and the minimum development point of karst
Husky channel is equipped with sand discharge butterfly valve；By channel connection of constructing between the sump and setting pot, the karst is most
Low development point downstream is equipped with the plug for closing karst.
Preferably, overflowing equipped with what is be connected to the natural river course below massif above the minimum development point of the karst
Circulation road, the overflow ducts are equipped with draining control gate valve.
Further, the horizontal distance of minimum development point of the sump apart from karst is 20~100m, is catchmented
The depth of well is 1~7m, and the volume size of sump is 100~500m3。
Further, power generation abandons water and is emitted into natural river course by sump and inclined shaft；If generating set floor elevation
Less than natural river course extreme high water, then suction pump discharge power generation is set between sump and pump drainage inclined shaft and abandons water；The inclined shaft
Outlet elevation is higher than 0.5~5m of extreme high water of natural river course.
Preferably, the depth of the setting pot is 1~5m, the floor elevation in the sand discharge channel is most than karst
Low 1~the 2m of elevation of low development point.
Preferably, the overflow ducts are connected to by vertical shaft with the minimum development point of karst, the overflow ducts
Floor elevation be higher than 20~150m of minimum development point height of karst, overflow ducts outlet elevation is higher than day below massif
0.5~the 5m of peak level in right river.
Further, a diameter of 0.5~2m of the vertical shaft.
It becomes silted up for the real time measure silt preferably, being equipped between the sand discharge butterfly valve and the minimum development point of karst
The pressure sensor of product thickness, 1~2MPa of range of the sand discharge butterfly valve.
Preferably, the plug uses C25 concrete plugs, the length of the plug is 10~30m.
A kind of design method using pipeline type karstic ground water electricity generation system includes the following steps：
A, according to geological prospecting early period as a result, determining the minimum development point P0 of karst；
B, build the first construction channel near earth's surface or karst, reach the P1 points near P0 points downstream, P1 points away from
Horizontal distance from P0 points is 20~100m；
C, sump and inclined shaft are built since P1 points, the outlet elevation of inclined shaft should be higher than that natural river course is most below massif
0.5~5m of high water level, prevents river water from pouring in down a chimney；
D, synchronous with step c, it is parallel and implement the second construction channel and heavy apart from the position of power generation 15~30m of drainage gallery
Sand pond；
E, after setting pot is excavated to the floor elevation in sand discharge channel, the row between setting pot and karst is come into effect
Husky channel；Sand discharge butterfly valve is installed in sand discharge channel middle, pressure sensor is installed between sand discharge butterfly valve and karst, with real-time
Measure sediment siltation thickness；
F, when sump is excavated to the floor elevation of power generation drainage gallery and after penetrate through with inclined shaft, come into effect sump and
Power generation drainage gallery between karst, and suction pump is installed before power generation drainage gallery perforation；
G, during implementation steps c~f, implementation overflow ducts can be synchronized, the floor elevation of overflow ducts is higher than P0 points
20~150m of elevation and the 0.5~5m of highest design water level for being higher than natural river course below massif；In overflow ducts, P0 points just on
Implement the vertical shaft of connection overflow ducts and karst in side；
H, generating set is installed on power generation drainage gallery, the capacity of generating set is according to karst water and to stablize head comprehensive
It closes and determines；
I, the karst in power generation drainage gallery downstream side is closed using plug；Karst head in karst is raised,
It by generator set control inflow-rate of water turbine and generates electricity, power generation abandons water and is excreted to natural river course below massif by sump and inclined shaft
In；In system operation, the keying run time of sand discharge butterfly valve is controlled by pressure sensor, periodically silt is rinsed
Discharge ensures that sediment siltation height is no more than P1 point heights, and during sand discharge, unit is automatically stopped operation.
The advantageous effect that the present invention obtains is：By being equipped with sump by the minimum development point downstream of karst and sinking
Sand pond, sump are connected to by the drainage gallery that generates electricity with the minimum development point of karst, and setting pot passes through sand discharge channel and rock
The minimum development point in pipe road is connected to, in karst silt and water realize shunting, the mud in karst can be prevented
Husky silting；The drainage gallery that generates electricity is equipped with generating set, and the day below massif is equipped with right over the minimum development point of karst
The overflow ducts of right river connection, overflow ducts are equipped with draining control gate valve, water can be converted to electric energy by generating set,
And productive head and flow can be protected with adjusting control, the stability and reliability of system operation；System arrangement letter
It is single, have preferable operation and maintenance condition.The present invention intends that, in the large-scale Karst System application in Guizhou, karst water can be made full use of
The water and head of resource, generate apparent power benefit, are worth promoting and applying in similar engineering, Social benefit and economic benefit
Significantly.
Description of the drawings
Fig. 1 is the floor map of the present invention；
Fig. 2 is the sectional view of Fig. 1.
Specific implementation mode
The present invention is further described in the following with reference to the drawings and specific embodiments.
As shown in Figs. 1-2, a kind of to utilize pipeline type karstic ground water electricity generation system, including karst 1, in karst
(attachment) is equipped with sump 10 and setting pot 7 by 1 minimum development point P0, and the position of sump 10 selects, and is from earth's surface or attached
The first construction channel 2 is built in nearly somewhere, reaches the P1 points near P0 points downstream, the horizontal distances of P1 point distance P0 points generally with
20m~100m is advisable, and sump 10 is connected to by the drainage gallery 8 that generates electricity with the minimum development point P0 of karst 1, sump
10 depth is generally 1~7m, and the volume of sump is 100~500m3(particular capacity can be according to karst maximum come the 2 of water
~3 times of determinations), sump span (length of side) general control is within the scope of 3~10m；The drainage gallery 8 that generates electricity is equipped with generating set
9 (using tubular generator group), the form of fracture of power generation drainage gallery 8 is gateway opening type, and cross dimensions is according to generating set 9
It needs to be determined that, generally (3m × 3.5m)~(5m × 7m) (wide × high)；Sump 10 is by inclined shaft 11 and massif (in figure
17 be mountain relief line) below natural river course 18 be connected to, power generation abandons water and is discharged into natural river by sump 10 and inclined shaft 11
In road 18, suction pump 12 can be set between sump 10 and inclined shaft 11 (if 9 bottom plate of generating set is high according to actual conditions
Journey is less than 18 extreme high water of natural river course, then sets suction pump 12 between sump 10 and pump drainage inclined shaft 11, pass through suction pump 12
Water is abandoned in discharge power generation), will, the outlet elevation of inclined shaft 11 should be higher than that 0.5~5m of extreme high water of natural river course 18 outside massif,
Prevent river water from pouring in down a chimney into inclined shaft 11, inclined shaft 11 is gateway opening type and cross dimensions is (2m × 2.5m)~(3m × 3.5m) (wide
× high).Generate electricity drainage gallery 8, generating set 9, sump 10 and the composition drainage power generation system of inclined shaft 11, utilizes pipeline type karst
The characteristics of, pipeline type karst water stable for water recharging and larger drop can convert water to electric energy, avoid rock directly
The discarded excretion of molten water, will cause the waste of hydraulic power potentials.
Less parallel and the second construction channel 3 of position implementation apart from the power generation about 15~30m of drainage gallery 8 and setting pot 7,
The volume size of 7 1~5m of depth of setting pot, setting pot 7 rationally determines according to karst year silt input quantity, setting pot span (side
It is long) general control is within the scope of 3~10m；Setting pot 7 is connected to by sand discharge channel 4 with the minimum development point P0 of karst 1,
The middle part installation sand discharge butterfly valve 5 in sand discharge channel 4, the low 1m~2m of elevation (i.e. P0 and the P2 of the floor elevation ratio P0 in sand discharge channel 4
The depth displacement P0-P2 of point is 1~2m), to ensure that silt is logical without sluicing into power generation into setting pot 7 by sand discharge channel 4
The form of fracture in road 8, sand discharge channel 4 uses gateway opening type or circle, gateway opening type cross dimensions to be generally (2m × 2.5m)
~(3m × 3.5m) (wide × high), the diameter of circular cross section is generally 1m~3m, and specific size is according to quantity of sand and mud, sand discharge butterfly valve 5
Model determine, 1~2MPa of range of sand discharge butterfly valve 5；It is equipped between sand discharge butterfly valve 5 and the minimum development point P0 of karst 1
Pressure sensor 6 for the real time measure sediment siltation thickness.Sand discharge channel 4, setting pot 7, pressure sensor 6 and draining butterfly valve
5 composition precipitation sand flushing systems, in whole system operational process, when controlling the keying of draining butterfly valve 5 by pressure sensor 6 and running
Between, discharge periodically is rinsed to the silt in karst 1, ensures that sediment siltation height is no more than P1 point heights, sand discharge mistake
Cheng Zhong, unit are automatically stopped operation.
Using sand discharge channel 4 and power generation drainage gallery 8, ensure the automatic shunt of the silt and water of karst 1.
It is connected to by channel of constructing (the first construction channel 2 and the second construction channel 3) between sump 10 and setting pot 7,
Facilitate the construction of sump 10 and setting pot 7；The downstreams minimum development point P0 of karst 1 are equipped with for closing karst 1
Plug 16, it is 10~30m that plug 16, which uses C25 concrete plugs, the length of plug 16, is born most with specific reference to the later stage
Big head and pipeline form, which calculate, to be determined, ensures that the next karst water in 1 upstream of karst by the drainage gallery 8 that generates electricity, avoids
Directly by the discarded excretion of karst water, the waste of hydraulic power potentials will be caused, also can guarantee the waterflow stabilization by generating set 9.
The vertical shaft 14 for pressure regulation, vertical shaft 14 and overflow ducts 13 are equipped with right over the minimum development point P0 of karst 1
Connection, overflow ducts 13 are equipped with draining control gate valve 15, and overflow ducts 13 use gateway opening type section, cross dimensions to be generally
(2m × 2.5m)~(3m × 3.5m) (wide × high), the floor elevation of overflow ducts 13 is higher than 20~150m of P0 point heights and height
Highest 0.5~5m of design flood level of the external natural river course of Yushan Hill 18, specifically can be according to karst come water and the dress of generating set 9
Machine capacity synthesis determines；It is drilled with vertical shaft 14 in overflow ducts 13, right over P0 points with anti-well drilling machine, vertical shaft 14 connects overflow
Channel 13 and karst 1, a diameter of 0.5~2m of vertical shaft 14.13 middle part proper site installation draining control lock of overflow ducts
The range of valve 15, draining control gate valve 15 is 1~2MPa, and draining control gate valve 15 is typically in closed state, only when karst comes
When water jeopardizes 9 operational safety of generating set more than normal range (NR) suddenly, opens draining control gate valve 15 and open karst water and let out
Into natural river course 18.Overflow ducts 13, vertical shaft 14 and draining control gate valve 15 form overflow voltage-regulating system, ensure productive head
It is run in reasonable interval with the hydraulic turbine, the stability and reliability of system operation can be protected.
A kind of design method using pipeline type karstic ground water electricity generation system includes the following steps：
A, according to geological prospecting early period as a result, determining the minimum development point P0 of karst 1；
B, the first construction channel 2 is built near earth's surface or karst 1, reaches the P1 points near P0 points downstream, P1 points
The horizontal distance of distance P0 points is generally advisable with 20~100m；
C, it builds sump 10 since P1 points and inclined shaft 11, the depth of sump 10 is generally 1~7m, sump 10
Volume size is according to karst maximum come 2~3 times of determinations of water, and sump 10 span (length of side) general control is in 3~10m ranges
It is interior；The outlet elevation of inclined shaft 11 should be higher than that 0.5~5m of extreme high water of natural river course 18 outside massif, prevent river water from pouring in down a chimney entrance
Inclined shaft 11；Inclined shaft 11 is gateway opening type and cross dimensions is (2m × 2.5m)~(3m × 3.5m) (wide × high)；
D, the second construction of position implementation channel 3 synchronous with step c, parallel and apart from the power generation about 15~30m of drainage gallery 8
It is rationally determined according to karst year silt input quantity with the volume size of setting pot 7,7 1~5m of depth of setting pot, setting pot 7, sand setting
Pond span (length of side) general control is within the scope of 3~10m；
E, it after setting pot 7 is excavated to the floor elevation in sand discharge channel 4, comes into effect between setting pot 7 and karst 1
Sand discharge channel 4；In 4 middle part installation sand discharge butterfly valve 5 of sand discharge channel, pressure sensing is installed between sand discharge butterfly valve 5 and karst 1
Device 6, with the real time measure sediment siltation thickness；Low 1~the 2m of elevation of the floor elevation ratio P0 in sand discharge channel 4 be (i.e. P0 and P2 points
Depth displacement P0-P2 is 1~2m), to ensure that silt enters setting pot 7 without entering the drainage gallery 8 that generates electricity by sand discharge channel 4；
The form of fracture in sand discharge channel 4 use gateway opening type or circle, gateway opening type cross dimensions be generally (2m × 2.5m)~(3m ×
3.5m) (wide × high), the diameter of circular cross section are generally 1m~3m, and specific size is according to the model of quantity of sand and mud, sand discharge butterfly valve 5
It determines；In the present embodiment, the range of sand discharge butterfly valve 5 is 1~2MPa；
F, after sump 10 is excavated to the floor elevation of power generation drainage gallery 8 and is penetrated through with inclined shaft 11, collection is come into effect
Power generation drainage gallery 8 between well 10 and karst 1, and suction pump 12, power generation are installed before power generation drainage gallery 8 penetrates through
The form of fracture of drainage gallery 8 be gateway opening type, cross dimensions according to generating set 9 it needs to be determined that, generally (3m ×
3.5m)~(5m × 7m) (wide × high)；
G, during implementation steps c~f, it can synchronize and implement overflow ducts 13, overflow ducts 13 are disconnected using gateway opening type
Face, cross dimensions are generally (2m × 2.5m)~(3m × 3.5m) (wide × high)；The floor elevation of overflow ducts 13 is higher than P0 points
20~150m of elevation and the highest 0.5~2m of design water level for being higher than natural river course 18 outside massif, specifically can be according to karst come water
And the installed capacity synthesis of generating set 9 determines；In overflow ducts 13, implement connection overflow ducts 13 and rock right over P0 points
The vertical shaft 14 in pipe road 1；
H, generating set 9 is installed in power generation drainage gallery 8, the karst water in karst 1 passes through sand discharge channel 4 at this time
Sump 10 is flowed into, is further discharged into natural river course 18, the capacity of generating set 9 is according to karst water and to stablize head comprehensive
It closes and determines；9 upstream of generating set in power generation drainage gallery 8, can install waterwall, prevent the karst water of karst 1
Flow is excessive, and part karst water is flowed into power generation drainage gallery 8, is impacted to the installation of generating set 9；
I, using the karst 1 in 8 downstream side of plug 16 (using C25 concrete plug) closing power generation drainage gallery；Rock
Karst head in pipe road 1 is raised, and is controlled inflow-rate of water turbine by generating set 9 and is generated electricity, power generation abandons water and passes through 10 He of sump
Suction pump 12 is pumped to below massif in natural river course 18；In system operation, sand discharge butterfly valve is controlled by pressure sensor 6
5 keying run time is periodically rinsed discharge to silt, ensures that sediment siltation height is no more than P1 point heights, sand discharge mistake
Cheng Zhong, unit are automatically stopped operation.
The basic principle and key structural feature of the present invention has been shown and described above.The present invention is not limited by examples detailed above
System, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It both falls in the range of claimed invention.The claimed scope of the invention is by appended claims and its equivalent
It defines.
Claims (10)
1. a kind of utilizing pipeline type karstic ground water electricity generation system, including karst (1), it is characterised in that：The karst pipe
Sump (10) and setting pot (7) are equipped with by the minimum development point in road (1), the sump (10) passes through the drainage gallery that generates electricity
(8) it is connected to the minimum development point of karst (1), the power generation drainage gallery (8) is equipped with generating set (9), the collection
Well (10) is connected to by inclined shaft (11) with the natural river course (18) below massif；The setting pot (7) passes through sand discharge channel (4)
It is connected to the minimum development point of karst (1), the sand discharge channel (4) is equipped with sand discharge butterfly valve (5)；The sump (10)
It is equipped with by channel connection of constructing, the minimum development point downstream of the karst (1) for closing rock between setting pot (7)
The plug (16) in pipe road (1).
2. according to claim 1 utilize pipeline type karstic ground water electricity generation system, it is characterised in that：The karst
(1) overflow ducts (13) being connected to the natural river course (18) below massif are equipped with above minimum development point, the overflow is logical
Road (13) is equipped with draining control gate valve (15).
3. according to claim 1 or 2 utilize pipeline type karstic ground water electricity generation system, it is characterised in that：It is described to catchment
The horizontal distance of minimum development point of the well (10) apart from karst (1) is 20~100m, the depth of sump (10) is 1~
The volume size of 7m, sump (10) are 100~500m3。
4. according to claim 3 utilize pipeline type karstic ground water electricity generation system, it is characterised in that：Power generation is abandoned water and is passed through
Sump (10) is emitted into natural river course (18) with inclined shaft (11)；If generating set (9) elevation is less than natural river course (18) highest
Flood level then sets suction pump (12) between sump (10) and pump drainage inclined shaft (11), water is abandoned by suction pump (12) discharge power generation,
The outlet elevation of the inclined shaft (11) is higher than 0.5~5m of extreme high water of natural river course (18).
5. according to claim 1 utilize pipeline type karstic ground water electricity generation system, it is characterised in that：The setting pot
(7) depth is 1~5m, and the floor elevation of the sand discharge channel (4) is lower by 1 than the elevation of the minimum development point of karst (1)
~2m.
6. according to claim 1 utilize pipeline type karstic ground water electricity generation system, it is characterised in that：The overflow ducts
(13) it is connected to the minimum development point of karst (1) by vertical shaft (14), the floor elevation of the overflow ducts (13) is higher than
20~150m of minimum development point height of karst (1), overflow ducts (13) outlet elevation is higher than natural river course below massif
(18) 0.5~5m of extreme high water.
7. according to claim 6 utilize pipeline type karstic ground water electricity generation system, it is characterised in that：The vertical shaft (14)
A diameter of 0.5~2m.
8. according to claim 1 utilize pipeline type karstic ground water electricity generation system, it is characterised in that：The sand discharge butterfly valve
(5) pressure sensor (6) for the real time measure sediment siltation thickness is equipped between the minimum development point of karst (1),
1~2MPa of range of the sand discharge butterfly valve (5).
9. according to claim 1 utilize pipeline type karstic ground water electricity generation system, it is characterised in that：The plug (16)
Using C25 concrete plugs, the length of the plug (16) is 10~30m.
10. a kind of design method using pipeline type karstic ground water electricity generation system includes the following steps：
A, according to geological prospecting early period as a result, determining the minimum development point P0 of karst (1)；
B, the first construction channel (2) is nearby built from earth's surface or karst (1), reaches the P1 points near P0 points downstream, P1 points
The horizontal distance of distance P0 points is 20~100m；
C, sump (10) and inclined shaft (11) are built since P1 points, the outlet elevation of inclined shaft (11) should be higher than that below massif naturally
0.5~the 5m of peak level in river (18), prevents river water from pouring in down a chimney；
D, synchronous with step c, it is parallel and apart from power generation (8) 15~30m of drainage gallery position implement second construction channel (3) and
Setting pot (7)；
E, after setting pot (7) is excavated to the floor elevation in sand discharge channel (4), setting pot (7) and karst (1) are come into effect
Between sand discharge channel (4)；The installation sand discharge butterfly valve (5) in the middle part of sand discharge channel (4), sand discharge butterfly valve (5) and karst (1) it
Between installation pressure sensor (6), with the real time measure sediment siltation thickness；
F, it after sump (10) is excavated to the floor elevation of power generation drainage gallery (8) and is penetrated through with inclined shaft (11), comes into effect
Power generation drainage gallery (8) between sump (10) and karst (1), and installation is taken out before power generation drainage gallery (8) penetrates through
Water pump (12)；
G, during implementation steps c~f, it can synchronize and implement overflow ducts (13), the floor elevation of overflow ducts (13) is higher than
20~150m of P0 point heights and the 0.5~5m of highest design water level for being higher than natural river course (18) below massif；In overflow ducts
(13) implement the vertical shaft (14) of connection overflow ducts (13) and karst (1) in, right over P0 points；
H, the installation generating set (9) on power generation drainage gallery (8), the capacity of generating set (9) is according to karst water and stabilization
Head synthesis determines；
I, the karst (1) in power generation drainage gallery (8) downstream side is closed using plug (16)；Karst in karst (1)
Head is raised, and is controlled inflow-rate of water turbine by generating set (9) and is generated electricity, power generation is abandoned water and drained by sump (10) and inclined shaft (11)
Below to massif in natural river course (18)；In system operation, opening for sand discharge butterfly valve (5) is controlled by pressure sensor (6)
Run time is closed, discharge periodically is rinsed to silt, ensures that sediment siltation height is no more than P1 point heights, during sand discharge,
Unit is automatically stopped operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810526213.6A CN108677894B (en) | 2018-05-29 | 2018-05-29 | Power generation system utilizing pipeline type karst groundwater and design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810526213.6A CN108677894B (en) | 2018-05-29 | 2018-05-29 | Power generation system utilizing pipeline type karst groundwater and design method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108677894A true CN108677894A (en) | 2018-10-19 |
| CN108677894B CN108677894B (en) | 2023-12-15 |
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| CN201810526213.6A Active CN108677894B (en) | 2018-05-29 | 2018-05-29 | Power generation system utilizing pipeline type karst groundwater and design method |
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| CN110453652A (en) * | 2019-08-27 | 2019-11-15 | 中水北方勘测设计研究有限责任公司 | A method of the Reservoir region of processing karst area disappears water burst hole |
| CN114541344A (en) * | 2022-04-02 | 2022-05-27 | 中国电建集团北京勘测设计研究院有限公司 | Drainage tunnel arrangement structure adopting overflow depressurization to reduce gate water retaining head |
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| CN108677894B (en) | 2023-12-15 |
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