CN117071492A - Dam break prevention water flow regulating system for barrier lake - Google Patents

Dam break prevention water flow regulating system for barrier lake Download PDF

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Publication number
CN117071492A
CN117071492A CN202311274537.2A CN202311274537A CN117071492A CN 117071492 A CN117071492 A CN 117071492A CN 202311274537 A CN202311274537 A CN 202311274537A CN 117071492 A CN117071492 A CN 117071492A
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CN
China
Prior art keywords
river
water
branch
weir
gate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311274537.2A
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Chinese (zh)
Inventor
彭景亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yichang Tiantian Electric Co ltd
Original Assignee
Yichang Tiantian Electric Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yichang Tiantian Electric Co ltd filed Critical Yichang Tiantian Electric Co ltd
Priority to CN202311274537.2A priority Critical patent/CN117071492A/en
Publication of CN117071492A publication Critical patent/CN117071492A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E02B5/08—Details, e.g. gates, screens
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
    • 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
    • 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
    • E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
    • 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)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Barrages (AREA)

Abstract

The application provides a dam break prevention water flow regulating system of a barrier lake, which comprises an M river and a T river, wherein a dam is arranged at the downstream of the M river, a water diversion open channel is arranged between the M river and the T river, the altitude of the water diversion open channel is positioned between the M river and the T river, a reinforced concrete water diversion tunnel and a pressure steel pipe are further arranged, two ends of the reinforced concrete water diversion tunnel are respectively communicated with the M river and the water diversion open channel, two ends of the pressure steel pipe are respectively communicated with the water diversion open channel and the T river, and two ends of the reinforced concrete water diversion tunnel are respectively provided with a water inlet working gate system and a water outlet working gate system, so that the problem that the barrier dam breaks down due to the fact that the barrier lake formed by an earthquake has no water outlet is solved.

Description

Dam break prevention water flow regulating system for barrier lake
Technical Field
The application relates to the field of dam break prevention of barrier lakes, in particular to a water flow regulating system for the dam break prevention of the barrier lake.
Background
The water level of the S lake is still rising at a speed of tens of centimeters per year so far because of no water outlet, the deepest part of the lake reaches 500M, the water storage capacity of the S lake is continuously increased if the water is not regulated, the S lake possibly overflows through the lowest point of the I dam after 85-105 years, and the overflow flushes the dam, so that the risk of dam collapse is brought.
The hydropower station is built at the S lake, accumulated water is discharged and power is generated, but the barrier lake is short in forming time and unstable in geological structure, so that the foundation for building the hydropower station is not provided.
Disclosure of Invention
The application provides a dam break prevention water flow regulating system for a barrier lake, which solves the problem that the barrier lake formed by an earthquake has no water outlet, so that the barrier dam breaks down.
In order to solve the technical problems, the application adopts the following technical scheme: the dam break prevention water flow regulating system comprises an M river and a T river, wherein a dam is arranged at the downstream of the M river, a water diversion open channel is arranged between the M river and the T river, the altitude of the water diversion open channel is positioned between the M river and the T river, a reinforced concrete water diversion tunnel and a pressure steel pipe are further arranged, two ends of the reinforced concrete water diversion tunnel are respectively communicated with the M river and the water diversion open channel, two ends of the pressure steel pipe are respectively communicated with the water diversion open channel and the T river, and two ends of the reinforced concrete water diversion tunnel are also respectively provided with a water inlet working gate system and a water outlet working gate system.
In the preferred scheme, the lower one end department of penstock is equipped with the power station factory building, is equipped with generating set in the power station factory building, generating set and penstock intercommunication.
In the preferred scheme, the upper end of the dam is provided with a spillway, a cavity is arranged at the position, close to the bottom end, of the dam, and a cavity-placing working gate system is arranged in the cavity.
In the preferred scheme, one side of the working gate system of the emptying hole in the emptying hole is also provided with a cavity accident overhaul gate system.
In the preferred scheme, one side of the water inlet working gate system in the reinforced concrete water diversion tunnel is also provided with a water inlet accident overhaul gate system.
In the preferred scheme, one side of a water outlet working gate system in the reinforced concrete water diversion tunnel is also provided with a water outlet accident overhaul gate system.
In the preferred scheme, the bottom of the open water diversion channel is provided with a high river bed part and a low river bed part, the open water diversion channel is provided with a first branch and a second branch, the high river bed part is connected with the first branch, the low river bed part is connected with the second branch, the downstream of the second branch is communicated with the pressure steel pipe, the downstream of the first branch is communicated with the water storage weir, a drainage cavity is further arranged, and the bottom of the water storage weir is communicated with a T river through the drainage cavity.
In the preferred scheme, a sliding channel is arranged in the high riverbed part of the communication port of the first branch and the water storage weir, a weir gate capable of floating up and down is arranged in the sliding channel, the weir gate is of a cavity structure, the weir gate floats upwards to change the lowest water inlet height of the water storage weir, a communication channel is further arranged, one end of the communication channel is communicated with the water storage weir, and the other end of the communication channel is communicated with the sliding channel.
In a preferred scheme, a split baffle door capable of horizontally swinging is arranged at the branching position of the first branch and the second branch.
In the preferred scheme, be equipped with a type frame on the first branch, a type frame central authorities are equipped with liftable lifting screw, lifting screw lower extreme and weir gate are connected, lifting screw includes the polished rod section, polished rod section upper end is connected with the screw rod section, is equipped with the screw seat on the type frame, and the screw rod section cup joints with screw seat screw thread, and polished rod section lower extreme is equipped with big head end, is equipped with the cavity inner tube in the weir gate, and polished rod section and cavity inner tube slip cup joint, and the port is equipped with the backstop pot head on the cavity inner tube, and the backstop pot head is used for backstop big head end.
The beneficial effects of the application are as follows: constructing a diversion tunnel and a diversion open channel, taking the diversion tunnel and the diversion open channel as intermediate hinges, and taking the M river at the upstream of the S lake to divert river water into the nearby T river, so that the warehousing flow of the M river flowing through the S lake is reduced, and the dam break risk is reduced; hydropower stations are built at the joint of the diversion open channel and the T river to generate electricity, and natural resources are reasonably utilized; the water diversion open channel is constructed into a first branch and a second branch which are provided with high and low river beds, and a water storage weir is arranged, so that the water flow surge pressure in the flood season is improved while the conventional flow of the water diversion open channel is ensured.
Drawings
The application is further described below with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the present application.
Fig. 2 is a schematic horizontal layout of the present application.
Fig. 3 is a view showing the internal structure of the vent hole according to the present application.
FIG. 4 is a flow chart of a diversion channel of the present application.
FIG. 5 is a schematic cross-sectional view of the flow of the diversion channel of the present application.
FIG. 6 is a schematic view of the present application at the inlet of the weir.
Fig. 7 is a schematic diagram of a slice lifting of the present application.
Fig. 8 is a block diagram of the inside of the weir gate and the lifting screw of the present application.
In the figure: m river 1; spillway 2; a dam 3; placing a cavity 4; a water inlet accident overhaul gate system 5; a water inlet working gate system 6; a reinforced concrete diversion tunnel 7; a water outlet accident overhaul gate system 8; a water outlet working gate system 9; a diversion open channel 10; a first branch 1001; a second branch 1002; a high river bed section 1003; a low river bed section 1004; a penstock 11; a penstock ballast 12; a hydropower station plant 13; a generator set 14; t river 15; a vent hole accident access gate system 16; a blow hole working gate system 17; a water storage weir 18; a row of hollows 19; a weir gate 20; a slide channel 2001; a communication passage 2002; a split baffle door 21; a door-shaped frame 22; a lifting screw 23; polished rod segment 2301; screw segment 2302; big end 2303; a nut seat 2304; a hollow inner cylinder 24; stop end cap 25.
Detailed Description
As shown in fig. 1-8, the dam break prevention water flow regulating system of the barrier lake comprises an M river 1 and a T river 15, wherein a dam 3 is arranged at the downstream of the M river 1, a water diversion open channel 10 is arranged between the M river 1 and the T river 15, the elevation of the water diversion open channel 10 is positioned between the M river 1 and the T river 15, a reinforced concrete water diversion tunnel 7 and a pressure steel pipe 11 are further arranged, two ends of the reinforced concrete water diversion tunnel 7 are respectively communicated with the M river 1 and the water diversion open channel 10, two ends of the pressure steel pipe 11 are respectively communicated with the water diversion open channel 10 and the T river 15, and two ends of the reinforced concrete water diversion tunnel 7 are respectively provided with a water inlet working gate system 6 and a water outlet working gate system 9.
In the preferred scheme, a hydropower station 13 is arranged at the lower end of the pressure steel pipe 11, a generator set 14 is arranged in the hydropower station 13, and the generator set 14 is communicated with the pressure steel pipe 11.
In the preferred scheme, the upper end of the dam 3 is provided with a spillway 2, a cavity 4 is arranged at the position, close to the bottom end, of the dam 3, and a cavity working gate system 17 is arranged in the cavity 4.
Building a dam 3 on the M river 1, and storing water on the M river 1 through the dam 3; the dam 3 is provided with a spillway 2, the dam 3 is also provided with a dam maintenance, sand flushing and emptying hole 4, and the emptying hole 4 is provided with an emptying hole accident maintenance gate system 16 and a working gate system 17; a reinforced concrete diversion tunnel 7 is cut and poured on one side of the M river 1 to one side of the T river 15, a water inlet accident overhaul gate system 5 and a water inlet working gate system 6 are arranged at the inlet of the diversion tunnel 7, and a water outlet accident overhaul gate system 8 and a water outlet working gate system 9 are arranged at the outlet of the diversion tunnel 7; the outlet of the tunnel 7 is constructed with a diversion open channel 10, the tail end of the diversion open channel 10 is provided with a pressure steel pipe 11, and the pressure steel pipe 11 is provided with a ballast 12; the pressure steel pipe passes through a hydropower station 13, the hydropower station 13 is provided with a generator set 14, and tail water of the generator set 14 is led to a T river 15; thus, the river water of the M river 1 is stored after the dam 3 is built, and is transferred to the T river 15 through the reinforced concrete water transfer tunnel 7, the water transfer open channel 10, the pressure steel pipe 11 and the generator set 14. The flow regulating system has exquisite engineering conception for reducing the dam break risk of the S lake, and can regulate the river water to enter the T river 15 in the M river 1 at the upstream of the S lake, reduce the warehousing flow of the M river flowing through the S lake and reduce the water storage quantity of the S lake, thereby reducing the water level of the S lake and the dam break risk of the S lake I dam.
In the preferred embodiment, a vent accident access gate system 16 is further arranged on one side of the vent hole working gate system 17 in the vent hole 4.
In the preferred scheme, one side of a water inlet working gate system 6 in the reinforced concrete water diversion tunnel 7 is also provided with a water inlet accident overhaul gate system 5.
In the preferable scheme, a water outlet accident overhaul gate system 8 is further arranged on one side of a water outlet working gate system 9 in the reinforced concrete diversion tunnel 7.
The water inlet accident overhaul gate system 5, the water inlet working gate system 6, the water outlet accident overhaul gate system 8, the water outlet working gate system 9 and the emptying hole accident overhaul gate system 16 are arranged in holes, an upper open gate is adopted, a winch is adopted to hoist the upper open gate from the upper side, and a turnover gate system can be adopted for the emptying hole working gate system 17 due to the arrangement of the ports of the emptying hole 4.
In a preferred embodiment, a high-river bed portion 1003 and a low-river bed portion 1004 are arranged at the bottom end of the open diversion channel 10, the open diversion channel 10 is provided with a first branch 1001 and a second branch 1002, the high-river bed portion 1003 is connected with the first branch 1001, the low-river bed portion 1004 is connected with the second branch 1002, the downstream of the second branch 1002 is communicated with the pressure steel pipe 11, the downstream of the first branch 1001 is communicated with the water storage weir 18, a drainage cavity 19 is further arranged, and the bottom of the water storage weir 18 is communicated with the T river 15 through the drainage cavity 19.
After the water flow led down from the reinforced concrete diversion tunnel 7 enters the diversion canal 10, if the flow is not large, the water flow gathers above the low-river bed 1004 and directly flows into the T river 15 through the second branch 1002. When the flood season of the M river 1 comes, the water flow in the water diversion channel 10 is increased, the water flow is raised at the water level in the water diversion channel 10, one part of the water flow enters the T river 15 from the second branch 1002, the other part of the water flow enters the water storage weir 18 from the first branch 1001 for storage, and the water is discharged into the T river 15 from the emptying hole 19 after the flood season peak, so that the flow pressure of the T river 15 can be buffered.
In a preferred embodiment, a sliding channel 2001 is arranged in a river bed portion 1003 at a position where the first branch 1001 is communicated with the water storage weir 18, a weir gate 20 capable of floating up and down is arranged in the sliding channel 2001, the weir gate 20 is of a cavity structure, the weir gate 20 floats upwards to change the lowest water inlet height of the water storage weir 18, a communicating channel 2002 is further arranged, one end of the communicating channel 2002 is communicated with the water storage weir 18, and the other end of the communicating channel 2002 is communicated with the sliding channel 2001.
Because the weir gate 20 is of a hollow structure, when the water in the water storage weir 18 reaches a certain height, the water enters the lower end of the weir gate 20 in the sliding channel 2001 through the communication channel 2002, the buoyancy received by the weir gate 20 increases and lifts up, and the water is lifted from the bottom end of the first branch 1001, so that the water is blocked and prevented from continuing to enter the water storage weir 18.
In a preferred embodiment, the branching point of the first branch 1001 and the second branch 1002 is provided with a horizontally swingable split damper 21.
The diversion baffle gate 21 can adjust the channel width of the first branch 1001 or the second branch 1002, and plays a role in actively controlling the flow.
In the preferred scheme, be equipped with a portal frame 22 on the first branch 1001, portal frame 22 central authorities are equipped with liftable lifting screw 23, lifting screw 23 lower extreme is connected with the weir gate 20, lifting screw 23 includes polished rod section 2301, polished rod section 2301 upper end is connected with screw section 2302, be equipped with screw seat 2304 on the portal frame 22, screw section 2302 cup joints with screw seat 2304 screw thread, polished rod section 2301 lower extreme is equipped with big head end 2303, be equipped with hollow inner tube 24 in the weir gate 20, polished rod section 2301 and hollow inner tube 24 slip cup joint, the last port of hollow inner tube 24 is equipped with backstop pot head 25, backstop pot head 25 is used for backstop big head end 2303.
The screw section 2302 can adopt a spline screw, a speed reduction driving motor is further arranged on the door-shaped frame 22, and the shaft end of the speed reduction driving motor drives the upper end of the screw section 2302 to rotate through a synchronous belt or a chain transmission, so as to drive the lifting screw 23 to rotate in a spiral manner and lift up and down.
The sliding guide 2001 is relatively provided with two U-shaped opening carriages, which clamp both side ends of the weir gate 20 as guide structures movable up and down.
Initially, the weir gate 20 is subjected to the buoyancy of water and at this time the hollow inner barrel 24 slides relative to the polished rod section 2301 and when the weir gate 20 is raised to a certain height, the large head end 2303 abuts the bottom end of the hollow inner barrel 24. If it is desired to clear the deposited silt in the chute 2001, the speed reducing drive motor on the gantry 22 is operated so that the lifting screw 23 is helically lifted and moves the large head end 2303 against the stop end sleeve 25, and then the weir gate 20 is pulled up out of the chute 2001, and water flows into the chute 2001 and the communication channel 2002 to flush the deposited silt into the water storage weir 18.
The above embodiments are only preferred embodiments of the present application, and should not be construed as limiting the present application, and the scope of the present application should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.

Claims (8)

1. A dam break prevention water flow regulating system of a barrier lake is characterized in that: including M river (1) and T river (15), M river (1) low reaches department is equipped with dam (3), be equipped with between M river (1) and the T river (15) and transfer open channel (10), transfer open channel (10) altitude is located between M river (1) and the T river (15), still be equipped with reinforced concrete and transfer water tunnel (7) and pressure steel pipe (11), reinforced concrete transfers water tunnel (7) both ends respectively with M river (1) and transfer open channel (10) intercommunication, pressure steel pipe (11) both ends respectively with transfer open channel (10) and T river (15) intercommunication, reinforced concrete transfers water tunnel (7) both ends still are equipped with water inlet work gate system (6) and delivery port work gate system (9) respectively.
2. The barrier lake dam break prevention water flow rate regulating system according to claim 1, wherein: the lower one end department of penstock (11) is equipped with hydroelectric power plant (13), is equipped with generating set (14) in hydroelectric power plant (13), generating set (14) and penstock (11) intercommunication.
3. The barrier lake dam break prevention water flow rate regulating system according to claim 1, wherein: one side of a water inlet working gate system (6) in the reinforced concrete diversion tunnel (7) is also provided with a water inlet accident overhaul gate system (5).
4. The barrier lake dam break prevention water flow rate regulating system according to claim 1, wherein: one side of a water outlet working gate system (9) in the reinforced concrete diversion tunnel (7) is also provided with a water outlet accident overhaul gate system (8).
5. The barrier lake dam break prevention water flow rate regulating system according to claim 2, wherein: the bottom of the water diversion open channel (10) is provided with a high river bed part (1003) and a low river bed part (1004), the water diversion open channel (10) is provided with a first branch (1001) and a second branch (1002), the high river bed part (1003) is connected with the first branch (1001), the low river bed part (1004) is connected with the second branch (1002), the downstream of the second branch (1002) is communicated with the pressure steel pipe (11), the downstream of the first branch (1001) is communicated with the water storage weir (18), a drainage cavity (19) is further arranged, and the bottom of the water storage weir (18) is communicated with the T river (15) through the drainage cavity (19).
6. The barrier lake dam break prevention water flow rate regulating system of claim 5, wherein: the first branch (1001) and the water storage weir (18) are communicated with each other, a sliding channel (2001) is arranged in the high river bed part (1003), a weir gate (20) capable of floating up and down is arranged in the sliding channel (2001), the weir gate (20) is of a cavity structure, the weir gate (20) floats upwards to change the lowest water inlet height of the water storage weir (18), a communicating channel (2002) is further arranged, one end of the communicating channel (2002) is communicated with the water storage weir (18), and the other end of the communicating channel (2002) is communicated with the sliding channel (2001).
7. The barrier lake dam break prevention water flow rate regulating system of claim 6, wherein: be equipped with door type frame (22) on first branch (1001), door type frame (22) central authorities are equipped with liftable lifting screw (23), lifting screw (23) lower extreme is connected with weir gate (20), lifting screw (23) are including polished rod section (2301), polished rod section (2301) upper end is connected with screw rod section (2302), be equipped with screw seat (2304) on door type frame (22), screw rod section (2302) cup joint with screw seat (2304) screw thread, polished rod section (2301) lower extreme is equipped with big head end (2303), be equipped with cavity inner tube (24) in weir gate (20), polished rod section (2301) are cup jointed with cavity inner tube (24) slip, the last port of cavity inner tube (24) is equipped with backstop pot head (25), backstop pot head (25) are used for backstop big head end (2303).
8. The barrier lake dam break prevention water flow rate regulating system according to claim 5 or 7, wherein: a split baffle door (21) capable of swinging horizontally is arranged at the branching position of the first branch (1001) and the second branch (1002).
CN202311274537.2A 2023-09-28 2023-09-28 Dam break prevention water flow regulating system for barrier lake Pending CN117071492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311274537.2A CN117071492A (en) 2023-09-28 2023-09-28 Dam break prevention water flow regulating system for barrier lake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311274537.2A CN117071492A (en) 2023-09-28 2023-09-28 Dam break prevention water flow regulating system for barrier lake

Publications (1)

Publication Number Publication Date
CN117071492A true CN117071492A (en) 2023-11-17

Family

ID=88708310

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311274537.2A Pending CN117071492A (en) 2023-09-28 2023-09-28 Dam break prevention water flow regulating system for barrier lake

Country Status (1)

Country Link
CN (1) CN117071492A (en)

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