CN109629525B - Deep water intake system and operation method thereof - Google Patents
Deep water intake system and operation method thereof Download PDFInfo
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- CN109629525B CN109629525B CN201811569922.9A CN201811569922A CN109629525B CN 109629525 B CN109629525 B CN 109629525B CN 201811569922 A CN201811569922 A CN 201811569922A CN 109629525 B CN109629525 B CN 109629525B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/22—Stop log dams; Emergency gates
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- 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
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- General Engineering & Computer Science (AREA)
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Abstract
The application discloses a deep water taking system and an operation method thereof. The water intake units at all levels are gradually reduced in arrangement elevation, each water intake unit at all levels comprises a plurality of water retaining gate devices, at least one accident gate device and at least one emptying gate device which are arranged in parallel, wherein the number of the water retaining gate devices is increased step by step, each water retaining gate device comprises a maintenance gate well and a working gate well which are arranged in parallel, each accident gate device comprises an accident gate well, and each maintenance gate well, each working gate well and each accident gate well are respectively provided with a maintenance gate, each working gate and each accident gate. By adopting the technical scheme of the application, the pressure of the upstream water head of the river channel is shared step by step through the water taking units at each level and the corresponding gate devices thereof, thereby meeting the water taking requirement and ensuring the safe and stable operation of the water taking system.
Description
Technical Field
The application particularly relates to the technical field of water conservancy and hydropower engineering, in particular to a deep water taking system and an operation method thereof.
Background
The high dam engineering brings huge energy benefit for the economic and social development of China, and the engineering emptying technology is an important guarantee for the stable and safe operation of the engineering. However, deep water intake buildings often cannot be arranged below 80m water depth due to the structure bearing huge water thrust. The water intake depth and the water intake amount are limited by the arrangement elevation, the gate size, the gate structure form and the operation mode of the water intake building. Greatly influences the water taking range and water consumption of relevant industries in China, and even needs to arrange more buildings, input more metal equipment, time, manpower and material resource cost to meet the demands.
Disclosure of Invention
In order to solve the technical problems, the application provides a deep water taking system and an operation method thereof.
The application is realized by the following technical scheme.
The application provides a deep water taking system, which comprises a tunnel, wherein a plurality of water blocking gate devices, at least one accident gate device and at least one emptying gate device which are sequentially arranged in parallel at proper intervals along the water flow direction in the tunnel are sequentially arranged along the water flow direction in the tunnel, the water blocking gate devices comprise an overhaul gate and a working gate which are sequentially arranged in parallel along the water flow direction in the tunnel, an overhaul gate capable of sliding along the overhaul gate in a lifting manner is arranged in the overhaul gate, a working gate capable of sliding along the working gate in a lifting manner is arranged in the working gate, the accident gate device comprises an accident gate, and an accident gate capable of sliding along the accident gate in a lifting manner is arranged in the accident gate.
The tolerance of the arithmetic series is 1.
When the number of the water retaining gate devices contained in the water taking unit is more than 3, the water retaining gate devices from the 2 nd water retaining gate device to the last 1 water retaining gate device are arranged along the water flow direction in the tunnel, and overflow channels are further arranged between any two adjacent water retaining gate devices and are respectively communicated with the corresponding overhaul gate well and the corresponding working gate well.
The overhaul gate, the working gate and the accident gate are all flat gates.
The emptying gate device comprises an emptying gate chamber, an emptying gate door is arranged in the emptying gate chamber, and the emptying gate can movably conduct or cut off a tunnel below the emptying gate chamber.
The emptying gate is an arc gate.
And a slope pressing section which inclines from high to low along the flow direction of river water is further arranged at the joint of the emptying lock chamber and the downstream tunnel.
When the number of the water gate devices contained in the water taking unit is more than 2, an overflow gallery A is further arranged between any two adjacent water gate devices along the water flow direction in the tunnel, and two ends of the overflow gallery A are respectively communicated with corresponding overhaul gate wells or working gate wells in the water gate devices.
And an air supplementing pipe is further arranged in the accident brake well, one end of the air supplementing pipe is communicated with the tunnel under the accident brake well, and the other end of the air supplementing pipe extends along the vertical upward direction.
And the two sides of the evacuation gate chamber are also provided with air-filling holes, and the height difference between the air-filling holes and the top surface of the evacuation gate is greater than 2 meters.
In addition, the application also provides an operation method of the deep water taking system, which comprises the following steps:
using the deep water intake system, the deep water intake system is provided to include n-stage water intake units 1, the number of water gate devices 3 included in each stage of water intake units 1 is gradually increased in an arithmetic progression, an arithmetic progression tolerance is provided as Δd, the 1 st stage water intake unit 1 includes m water gate devices 3, and the i-stage water intake unit 1 includes k water gate devices 3, wherein i=1, 2,3, …, n, k values satisfy the following relation:
k＝m+(i-1)△d；
let k water gate devices 3 included in the i-th water intake unit 1 sequence the following numbers along the tunnel 2 with the inner water flow direction: a, a 1 ,a 2 ,a 3 ,…,a k When the deep water intake system is operated, the method comprises the following steps:
1. and (3) water storage stage:
step one: all the emptying gate devices 5 in the n-level water taking units 1 are closed simultaneously along the direction opposite to the water flow direction in the tunnel 2;
step two: after the upstream water level of all the emptying gate devices 5 in the n-level water taking units 1 reaches the preset water level height corresponding to the upstream water level, closing all the numbers a in the n-level water taking units 1 at the same time k A water gate device 3;
step three: all numbers within the water taking unit 1 of the n level are a k After the upstream water level of the water gate device 3 reaches the preset water level height corresponding to the upstream water level, all the numbers a in the n-level water taking units 1 are closed at the same time k-1 A water gate device 3;
step four: repeating the third step until all the water retaining gate devices 3 in the n-level water taking units 1 are closed, and ending the water storage stage;
2. water intake stage:
step one: along the water flow direction in the tunnel 2, all the water taking units 1 with the number a in the n stages are simultaneously started 1 A water gate device 3;
step two: all numbers within the water taking unit 1 of the n level are a 1 After the downstream water level of the water gate device 3 is leveled with the upstream water level, all the numbers a in the n-level water taking units 1 are simultaneously opened 2 A water gate device 3;
step three: repeating the second step until all numbers within the n-level water taking units 1 are simultaneously started to be a k All water gate devices 3;
step four: all numbers within the water taking unit 1 of the n level are a k After the downstream water level of the water gate device 3 is leveled with the upstream water level, all the emptying gate devices 5 in the n-level water taking units 1 are simultaneously opened, and water is taken from the downstream tunnel 2 of the emptying gate devices 5 of the n-level water taking units 1.
3. Overhauling of the water gate device 3:
when the working gate 34 in the water gate device 3 needs to be overhauled, the overhauling gate 33 is fallen to block the tunnel 2, the water is discharged through the flat-pressing water filling pipe 6, after the water level of the upper and lower sides of the water gate device 3 is leveled, the working gate 34 is lifted up for overhauling, the working gate 34 is put down after overhauling, water is filled into the upper and lower sides of the water gate device 3 through the flat-pressing water filling pipe 6, and after the water level of the upper and lower sides of the water gate device 3 reaches the preset height, the overhauling gate 33 is lifted up to finish overhauling;
3. maintenance of the evacuation gate 52:
when the evacuation gate 52 needs to be overhauled, the accident gate 42 corresponding to the evacuation gate is closed, the evacuation gate 52 is lifted up for overhauling, after the overhauling is finished, the evacuation gate 52 is put down, after water is filled at two ends of a water filling pipe, the accident gate 42 is lifted up after the water level of the upstream and the downstream in the accident gate device 4 is leveled, and the overhauling is finished.
The application has the beneficial effects that: according to the technical scheme, for the water taking system with the water depth of more than 80m, the water taking system is provided with the tunnels with the sections in the shape of urban gate holes at the bottoms of the riverways, the water pressure from the upstream of each high-pressure pond is reduced step by arranging the multi-stage water retaining gate devices, the water pressure reduction effect in each high-pressure pond is kept balanced, the arrangement level of the water retaining gate devices in the whole emptying system is reduced, the construction engineering quantity is reduced, the construction difficulty is reduced, the construction cost is saved, and further, the high-pressure ponds are mutually communicated by arranging the communicating pipes, and the communicating pipes are provided with the valves for controlling, so that the water pressure reduction effect in each high-pressure pond is kept balanced as far as possible, the water pressure in each high-pressure pond can be regulated through the opening and closing of the valves, a good foundation is provided for completely emptying the water head, in addition, the water level balance in the overhaul operation process of the emptying device is ensured, and in addition, the final-stage water retaining gate device is used as a time, and is also provided with the corresponding air supplementing pipe, and the air supplementing water body can be prevented from being polluted by air supplementing, and the air supplementing water body is avoided from being polluted. In addition, by arranging the overflow gallery, the water pressure in each high-pressure tank of the emptying system can not exceed the limit when the emptying system operates, and the safety operation of the emptying system is guaranteed.
By adopting the technical scheme of the application, the hydraulic reverse water thrust principle is fully utilized, and the advantages of various gate types are exerted to share the water retaining and water taking functions, so that the functions of water retaining and water taking of the building are met, the building can be arranged in a deeper layer under water, and enough water is taken, thereby successfully solving the technical problems of deep water taking and water draining industries. The application can arrange buildings with different layers according to the water intake depth requirement, flexibly meet the water intake requirement, and burst through the limitation that the water intake requirement can not be met by arranging a single-layer building in the traditional design. The operation method meets various operation requirements of the system structure under the working conditions of operation, overhaul, emergency and the like, and meets the technical requirements of the existing civil engineering, gold knots and electrical equipment. The operation method utilizes the grading gate to stop water in the building structure design, adopts the flat-pressure pipeline, the flat-pressure vertical shaft and the overflow gallery to balance water pressure, realizes the operation requirements under each working condition of the system, and has extremely high safety and stability. Further, the power equipment for driving the overhaul gate and the working gate is arranged at the top of the corresponding overhaul gate chamber or the working gate chamber in a layered manner, so that the overhaul gate and the working gate can use power relatively independently, the arrangement space of the power equipment is saved, and the engineering quantity and the investment construction cost are correspondingly reduced; the air-entraining ridge is arranged below the evacuation gate chamber, so that the water pressure and air pressure balance of a tunnel section between the evacuation gate and the accident gate is ensured, and the stable and safe structure is improved; the top of the non-pressure hole section at the downstream of the emptying lock chamber is provided with a pressure slope section for reducing the water surface line, correspondingly reducing the height of the non-pressure hole side wall and saving the engineering quantity and investment; the accident gate is provided with the corresponding air supplementing pipe, so that the air pressure and the water pressure under various working conditions are stable, and the use stability of the structure is improved; in addition, the operation method of the deep water taking system provided by the application effectively reduces the structural size of a building, increases the construction operation safety of the building and greatly increases the engineering benefit.
Drawings
FIG. 1 is a schematic diagram of the venting system of the present application;
FIG. 2 is a schematic view of the water intake unit of the present application;
FIG. 3 is an enlarged view of a portion of the water intake unit of the present application.
In the figure: 1-water taking units, 2-tunnels, 3-water retaining gate devices, 4-accident gate devices, 5-emptying gate devices, 6-flat-pressed water filling pipes, 7-overflow galleries A, 8-overflow galleries B, 9-flat-pressed vertical shafts, 10-air supplementing pipes, 11-air exhaust holes, 12-dam curtains, 21-slope pressing sections, 31-overhaul gate shafts, 32-working gate shafts, 33-overhaul gate shafts, 34-working gate shafts, 35-sand blocking banks, 41-accident gate shafts, 42-accident gate shafts, 51-emptying gate chambers, 52-emptying gate shafts and 53-air doping banks.
Detailed Description
The technical solution of the present application is further described below with reference to the accompanying drawings, but the scope of the claimed application is not limited to the above.
The deep water intake system and the operation method thereof according to the present application, as shown in fig. 1,2 and 3, comprise a tunnel 2 communicating with a water source and a plurality of stages of water intake units 1 arranged in parallel in sequence above the tunnel 2 along the flow direction in the tunnel 2, and each stage of water intake units 1 is arranged to be gradually lowered in elevation, each stage of water intake units 1 comprises a plurality of water blocking gate devices 3, at least one accident gate device 4 and at least one evacuation gate device 5 arranged in parallel in proper intervals along the flow direction in the tunnel 2, wherein the number of water blocking gate devices 3 included in each stage of water intake units 1 is gradually increased in an equal-differential array along the flow direction in the tunnel 2, each water blocking gate device 3 comprises a service gate 31 and a working gate 32 arranged in sequence in the tunnel 2 along the flow direction in the service gate 31, each working gate 34 is arranged in the working gate 32 to be vertically slidable along the working gate 31, each accident gate 4 is arranged in the working gate 32 to be vertically slidable along the working gate 32, and each accident gate device 4 is arranged in the working gate 41 to be vertically slidable along the working gate 41 in the working gate 41.
The application provides a deep water intake system and an operation method thereof, the deep water intake system comprises a plurality of stages of water intake units which are sequentially arranged in parallel in a river channel along the water flow direction in a tunnel 2, wherein the tunnel is drilled inside the river channel, all the water intake units are uniformly distributed on the tunnel, the water intake units are gradually reduced in arrangement elevation along the water flow direction in the tunnel 2, each stage of water intake unit comprises a plurality of water retaining gate devices, at least one accident gate device and at least one evacuation gate device which are sequentially arranged in parallel at proper intervals along the water flow direction in the river channel, the number of the water retaining gate devices contained in each stage of water intake units is gradually increased in an equal-difference sequence along the water flow direction in the tunnel 2, the water retaining gate devices comprise an overhaul gate well and a working gate well which are sequentially arranged in parallel in the river channel along the water flow direction in the tunnel 2, the working gate is arranged in the working gate well in a lifting manner, the accident gate device comprises an accident gate which can slide along the working gate well in a lifting manner. Preferably the tolerance of the arithmetic progression is 1.
Further, the arrangement form of the access gate 33 and the working gate 34 is a rear water stop form. The accident gate 42 is arranged in a front water stopping mode. Along the water flow direction in the tunnel 2, a dam curtain 12 is also arranged between the last water retaining gate device 3 and the emptying gate device 5 in each stage of water taking units 1. Preferably, the dam curtain 12 is arranged at a distance of 5 m to 6 m from the evacuation gate arrangement 5.
When the number of the water retaining gate devices included in the water taking unit is about 3, the water flowing direction in the tunnel 2 is along, from the 2 nd water retaining gate device to the last 1 water retaining gate device, a flat-pressure water filling pipe is further arranged between any two adjacent water retaining gate devices, and the flat-pressure water filling pipe is respectively communicated with the corresponding overhaul gate well and the corresponding working gate well.
Preferably, the service gate, the working gate and the accident gate are all in the shape of flat plates. The evacuation gate device comprises an evacuation gate chamber, a rotatable evacuation gate is arranged in the evacuation gate chamber, and the evacuation gate can movably conduct or cut off a tunnel below the evacuation gate chamber.
In addition, the bottom of the tunnel 2 is further provided with a gas-mixing ridge 53, and the gas-mixing ridge 53 is disposed right below the evacuation gate chamber 51. The bottom of the tunnel 2 is also provided with a sand blocking ridge 35, and the sand blocking ridge 35 is arranged at the upstream inlet of the corresponding 1 st water blocking gate device 3 in each level of water taking units 1 along the flow direction of the water in the tunnel 2.
Preferably, the outer surface of the evacuation gate is arc-shaped. The junction of the emptying lock chamber and the downstream tunnel is also provided with a slope pressing section which inclines from high to low along the flow direction of river water flow.
When the number of the water retaining gate devices contained in the water taking unit is about 2, an overflow gallery A is further arranged between any two adjacent water retaining gate devices along the water flow direction in the tunnel 2, and two ends of the overflow gallery A are respectively communicated with corresponding overhaul gate wells or working gate wells in the water retaining gate devices.
And an air supplementing pipe is further arranged in the accident brake well, one end of the air supplementing pipe is communicated with a tunnel under the accident brake well, and the other end of the air supplementing pipe extends along the vertical upward direction.
The two sides of the emptying gate chamber are also provided with air-filling holes, and the height difference between the air-filling holes and the top surface of the emptying gate is more than 2 meters.
The application has the beneficial effects that: according to the technical scheme, for the water taking system with the water depth of more than 80m, the water taking system is provided with the tunnels with the sections in the shape of urban gate holes at the bottoms of the riverways, the water pressure from the upstream of each high-pressure pond is reduced step by arranging the multi-stage water retaining gate devices, the water pressure reduction effect in each high-pressure pond is kept balanced, the arrangement level of the water retaining gate devices in the whole emptying system is reduced, the construction engineering quantity is reduced, the construction difficulty is reduced, the construction cost is saved, and further, the high-pressure ponds are mutually communicated by arranging the communicating pipes, and the communicating pipes are provided with the valves for controlling, so that the water pressure reduction effect in each high-pressure pond is kept balanced as far as possible, the water pressure in each high-pressure pond can be regulated through the opening and closing of the valves, a good foundation is provided for completely emptying the water head, in addition, the water level balance in the overhaul operation process of the emptying device is ensured, and in addition, the final-stage water retaining gate device is used as a time, and is also provided with the corresponding air supplementing pipe, and the air supplementing water body can be prevented from being polluted by air supplementing, and the air supplementing water body is avoided from being polluted. In addition, by arranging the overflow gallery, the water pressure in each high-pressure tank of the emptying system can not exceed the limit when the emptying system operates, and the safety operation of the emptying system is guaranteed.
The hydraulic reverse water thrust principle is fully utilized, the water retaining and taking functions are shared by playing the advantages of various gate types, the functions of retaining water and taking water of a building are met, the building can be arranged in a deeper layer under water, enough water is taken, and the technical problems of deep water taking and water taking in the industry are successfully solved. The application can arrange buildings with different layers according to the water intake depth requirement, flexibly meet the water intake requirement, and breaks through the limitation that the water intake requirement can not be met by arranging a single-layer building in the traditional design. The operation method meets various operation requirements of the system structure under the working conditions of operation, maintenance, emergency and the like, and meets the technical requirements of the existing civil engineering, golden knots and electrical equipment. The operation method utilizes the graded gate to stop water in the structural design of the building, adopts the flat pressure pipeline, the flat pressure vertical shaft and the overflow gallery to balance water pressure, realizes the operation requirements of the system under various working conditions, and has extremely high safety and stability. The hoist is arranged in layers on the traditional flood discharge tunnel structure, so that the arrangement space of the hoist is saved, and the structure size, the engineering quantity and the investment cost are correspondingly reduced; the air-supplementing ridge and the air-supplementing hole are additionally arranged behind the radial gate, so that the water pressure and air pressure balance of the hole section between the radial gate and the accident gate is ensured, and the stable and safe structure is improved; the water surface lines are reduced by pressing slopes at the top of the non-pressure hole section and diffusing at two sides, so that the height of the non-pressure hole side wall is correspondingly reduced, and the engineering quantity and the investment are saved; the accident gate is provided with the air supplementing and water filling pipes, so that the air pressure and water pressure stability under various working conditions are ensured, and the use stability of the structure is improved; comprehensive improvement measures such as a traffic vertical shaft, a horizontal lock chamber and a traffic corridor are additionally arranged, so that the stable safety of each layer of structure is greatly ensured, and higher guarantee is provided for stable and effective operation of the structure. The operation method effectively reduces the structural size of the building, increases the construction operation safety of the building, and greatly increases the engineering benefit.
Further, the tolerance of the arithmetic progression is 1. When the number of the water gate devices 3 included in the water taking unit 1 is about 3, the water flows along the tunnel 2 from the 2 nd water gate device 3 to the last 1 water gate device 3, and a flat-pressure water filling pipe 6 is further arranged between any two adjacent water gate devices 3, wherein the flat-pressure water filling pipe 6 is respectively communicated with the corresponding overhaul gate well 31 and the corresponding working gate well 32. The number of the flat-pressure water filling pipes 6 is at least 2.
The access gate 33, the working gate 34 and the accident gate 42 are preferably all flat-plate shaped. The evacuation gate device 5 comprises an evacuation gate chamber 51, a rotatable evacuation gate 52 is arranged inside the evacuation gate chamber 51, and the evacuation gate 52 can movably conduct or intercept the tunnel 2 below the evacuation gate chamber 51. The outer surface of the evacuation gate 52 is circular arc shaped.
Further, the junction of the emptying lock chamber 51 and the downstream tunnel 2 is also provided with a slope pressing section 21 which inclines from high to low along the river water flow direction.
In addition, when the number of the water gate devices 3 included in the water intake unit 1 is about 2, an overflow gallery A7 is further provided between any two adjacent water gate devices 3 along the water flow direction in the tunnel 2, and both ends of the overflow gallery A7 are respectively communicated with the corresponding service gate well 31 or working gate well 32 in the water gate devices. The working sluice well 32 contained in the last water retaining gate device 3 in each level of water taking units 1 is communicated with the flat-pressure vertical shaft 9 through an overflow gallery A7 along the flow direction of the water flow in the tunnel 2, and the overflow gallery A7 is obliquely arranged from high to low along the flow direction of the water flow in the tunnel 2, and the gradient of the overflow gallery A7 is less than 3%. The cross section of the part of the tunnel 2 below the water retaining gate device 3, the accident gate device 4 or the emptying gate device 5 is preferably rectangular, and the cross section of the part below the rest of the water taking unit 1 is circular or is similar to the shape of a city gate opening.
Further, when the number of the water gate devices 3 included in the water intake unit 1 is about 1, the upstream tunnel 2 and the downstream tunnel 2 of the evacuation gate device 5 are also communicated through the overflow path B8. When the number of water gate devices 3 included in the water intake unit 1 is about 3, the last water gate device 3 in the water intake unit 1 is also communicated with the overflow gallery B8 through the flat-pressing shaft 9.
Preferably, an air supplementing pipe 10 is further arranged inside the accident brake well 41, one end of the air supplementing pipe 10 is communicated with the tunnel 2 right below the accident brake well 41, and the other end of the air supplementing pipe 10 extends in the vertical upward direction. The two sides of the emptying gate chamber 51 are also provided with air-filling holes 11, and the height difference between the air-filling holes 11 and the top surface of the emptying gate 52 is larger than 2 meters.
Further, the deep water intake system includes n water intake units 1, the number of water gate devices 3 included in each water intake unit 1 is gradually increased in an arithmetic progression, and if the arithmetic progression tolerance is Δd, the 1 st water intake unit 1 includes m water gate devices 3, and the i-th water intake unit 1 includes k water gate devices 3, where i=1, 2,3, …, n, k values satisfy the following relation:
k＝m+(i-1)△d；
let k water gate devices 3 included in the i-th water intake unit 1 sequence the following numbers along the tunnel 2 with the inner water flow direction: a, a 1 ,a 2 ,a 3 ,…,a k When the deep water intake system is operated, the method comprises the following steps:
1. and (3) water storage stage:
step one: all the emptying gate devices 5 in the n-level water taking units 1 are closed simultaneously along the direction opposite to the water flow direction in the tunnel 2;
step two: after the upstream water level of all the emptying gate devices 5 in the n-level water taking units 1 reaches the preset water level height corresponding to the upstream water level, closing all the numbers a in the n-level water taking units 1 at the same time k A water gate device 3;
step three: all numbers within the water taking unit 1 of the n level are a k After the upstream water level of the water gate device 3 reaches the preset water level height corresponding to the upstream water level, all the numbers a in the n-level water taking units 1 are closed at the same time k-1 A water gate device 3;
step four: repeating the third step until all the water retaining gate devices 3 in the n-level water taking units 1 are closed, and ending the water storage stage;
2. water intake stage:
step one: along the water flow direction in the tunnel 2, all the water taking units 1 with the number a in the n stages are simultaneously started 1 A water gate device 3;
step two: all numbers within the water taking unit 1 of the n level are a 1 After the downstream water level of the water gate device 3 is leveled with the upstream water level, all the numbers a in the n-level water taking units 1 are simultaneously opened 2 A water gate device 3;
step three: repeating the second step until all numbers within the n-level water taking units 1 are simultaneously started to be a k All water gate devices 3;
step four: all numbers within the water taking unit 1 of the n level are a k After the downstream water level of the water gate device 3 is leveled with the upstream water level, all the emptying gate devices 5 in the n-level water taking units 1 are simultaneously opened, and water is taken from the downstream tunnel 2 of the emptying gate devices 5 of the n-level water taking units 1.
3. Overhauling of the water gate device 3:
when the working gate 34 in the water gate device 3 needs to be overhauled, the overhauling gate 33 is fallen to block the tunnel 2, the water is discharged through the flat-pressing water filling pipe 6, after the water level of the upper and lower sides of the water gate device 3 is leveled, the working gate 34 is lifted up for overhauling, the working gate 34 is put down after overhauling, water is filled into the upper and lower sides of the water gate device 3 through the flat-pressing water filling pipe 6, and after the water level of the upper and lower sides of the water gate device 3 reaches the preset height, the overhauling gate 33 is lifted up to finish overhauling;
3. maintenance of the evacuation gate 52:
when the evacuation gate 52 needs to be overhauled, the accident gate 42 corresponding to the evacuation gate is closed, the evacuation gate 52 is lifted up for overhauling, after the overhauling is finished, the evacuation gate 52 is put down, after water is filled at two ends of a water filling pipe, the accident gate 42 is lifted up after the water level of the upstream and the downstream in the accident gate device 4 is leveled, and the overhauling is finished.
The technical scheme of the application is put into practical application by the limited companies of Guiyang survey design institute of the electric construction group in China, in the implementation, the technology project of Guizhou province is supported by Qian Ke He support [2017]2865, and the electric construction scientific research project DJ-ZDXM-2017-05 in China is supported, so that the beneficial technical effects are obtained after the implementation, and meanwhile, the social benefit is good.
Claims (11)
1. A deep water intake system, characterized in that: including tunnel (2), along in the water flow direction in tunnel (2), arranged multistage water intaking unit (1) that the elevation reduces step by step in proper order, every stage water intaking unit (1) all includes along in the tunnel (2) water flow direction a plurality of water gate devices (3) of arranging side by side in proper interval in proper order, at least one accident gate device (4) and at least one evacuation gate device (5), wherein, the water gate device (3) that contain in the water intaking unit (1) of each stage quantity is the equi-differential array and gradually increases, water gate device (3) include along in the tunnel (2) water flow direction arrange in the river course in proper order in inspection gate (31) and work gate (32) side by side, are provided with in inspection gate (33) of can following inspection gate (31) lift slip in the inspection gate (32), be provided with in the work gate (32) can follow work gate (34) of work gate (32) lift slip, accident gate device (4) include accident gate (41), be provided with in order to follow accident gate (41) in the accident gate (41) lift gate (41).
2. A deep water intake system according to claim 1, wherein: the tolerance of the arithmetic series is 1.
3. A deep water intake system according to claim 1, wherein: when the number of the water retaining gate devices (3) contained in the water taking unit (1) is larger than 3, the water flowing direction in the tunnel (2) is followed, the water retaining gate devices (3) from the 2 nd water retaining gate device (3) to the last 1 water retaining gate device (3) are stopped, and an overflow channel (6) is further arranged between any two adjacent water retaining gate devices (3), and the overflow channel (6) is respectively communicated with the corresponding overhaul gate well (31) and the corresponding working gate well (32).
4. A deep water intake system according to claim 1, wherein: the overhaul gate (33), the working gate (34) and the accident gate (42) are all flat gates.
5. A deep water intake system according to claim 1, wherein: the emptying gate device (5) comprises an emptying gate chamber (51), an emptying gate (52) is arranged in the emptying gate chamber (51), and the emptying gate (52) can movably conduct or cut off a tunnel (2) below the emptying gate chamber (51).
6. A deep water intake system according to claim 5, wherein: the evacuation gate (52) is a radial gate.
7. A deep water intake system according to claim 5, wherein: the junction of the emptying lock chamber (51) and the downstream tunnel (2) is also provided with a slope pressing section (21) which inclines from high to low along the flow direction of river water.
8. A deep water intake system according to claim 1, wherein: when the number of the water retaining gate devices (3) contained in the water taking unit (1) is greater than 2, an overflow gallery A (7) is further arranged between any two adjacent water retaining gate devices (3) along the water flow direction in the tunnel (2), and two ends of the overflow gallery A (7) are respectively communicated with corresponding overhaul gate wells (31) or working gate wells (32) in the water retaining gate devices (3).
9. A deep water intake system according to claim 1, wherein: and an air supplementing pipe (10) is further arranged in the accident brake well (41), one end of the air supplementing pipe (10) is communicated with the tunnel (2) right below the accident brake well (41), and the other end of the air supplementing pipe (10) extends along the vertical upward direction.
10. A deep water intake system according to claim 5, wherein: and the two sides of the evacuation gate chamber (51) are also provided with air-supplementing holes (11), and the height difference between the air-supplementing holes (11) and the top surface of the evacuation gate (52) is greater than 2 meters.
11. A method of operating a deep water intake system, characterized by: the method comprises the following steps:
use of a deep water intake system according to any one of claims 1 to 10, provided that the deep water intake system comprises n levels of water intake units (1), the number of water gate devices (3) comprised within each level of water intake units (1) gradually increases in an arithmetic progression, provided that the arithmetic progression tolerance is Δd, the 1 st level of water intake units (1) comprises m water gate devices (3), the i st level of water intake units (1) comprises k water gate devices (3), wherein i = 1,2,3, …, n, k values satisfy the following relation:
k＝m+(i-1)Δd；
the k water gate devices (3) included in the ith water taking unit (1) are provided with the following sequential programming sequence numbers along the inner water flow direction of the tunnel (2): a, a 1 ,a 2 ,a 3 ,…,a k When the deep water intake system is operated, the method comprises the following steps:
1. and (3) water storage stage:
step one: all emptying gate devices (5) in the n-level water taking units (1) are closed simultaneously along the direction opposite to the water flow direction in the tunnel (2);
step two: after the upstream water level of all emptying gate devices (5) in the n-level water taking units (1) reaches the preset water level height corresponding to the upstream water level, closing all numbers a in the n-level water taking units (1) at the same time k A water gate device (3);
step three: all numbers within the n-level water taking unit (1) are a k After the upstream water level of the water gate device (3) reaches the preset water level height corresponding to the upstream water level, all the numbers within the n-level water taking units (1) are closed at the same time, wherein the numbers are a k-1 A water gate device (3);
step four: repeating the third step until all water retaining gate devices (3) in the n-level water taking units (1) are closed, and ending the water storage stage;
2. water intake stage:
step one: along the water flow direction in the tunnel (2), simultaneously opening the water taking units (1) of n stagesAll numbers a 1 A water gate device (3);
step two: all numbers within the n-level water taking unit (1) are a 1 After the downstream water level of the water gate device (3) is leveled with the upstream water level, all the numbers within the n-level water taking units (1) are simultaneously opened to be a 2 A water gate device (3);
step three: repeating the second step until all numbers within the n-level water taking units (1) are a k All water gate devices (3);
step four: all numbers within the n-level water taking unit (1) are a k After the downstream water level of the water retaining gate device (3) is leveled with the upstream water level of the water retaining gate device, all the emptying gate devices (5) in the n-level water taking units (1) are opened at the same time, and water is taken from the inside of the tunnel (2) in the downstream of the emptying gate devices (5) of the n-level water taking units (1);
3. overhauling of the water gate device (3):
when the working gate (34) in the water gate device (3) needs to be overhauled, the overhauling gate (33) is fallen to block the tunnel (2), water is discharged through the flat pressing water charging pipe (6), after the water level at the upper and lower sides of the water gate device (3) is leveled, the working gate (34) is lifted up for overhauling, the working gate (34) is placed down after overhauling, water is filled at the upper and lower sides of the two sides of the water gate device (3) through the flat pressing water charging pipe (6), and after the water level at the upper and lower sides of the two sides of the water gate device (3) reaches a preset height, the overhauling gate (33) is lifted up to finish overhauling;
4. maintenance of the evacuation gate (52):
when the emptying gate (52) needs to be overhauled, the corresponding accident gate (42) is closed, the emptying gate (52) is lifted up for overhauling, after the overhauling is finished, the emptying gate (52) is put down, after water is filled at two ends of a water filling pipe, the accident gate (42) is lifted up after the water level of the upstream and downstream in the accident gate device (4) is leveled, and overhauling is finished.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811569922.9A CN109629525B (en) | 2018-12-21 | 2018-12-21 | Deep water intake system and operation method thereof |
| PCT/CN2019/125832 WO2020125602A1 (en) | 2018-12-21 | 2019-12-17 | Deep water obtaining system and operating method therefor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811569922.9A CN109629525B (en) | 2018-12-21 | 2018-12-21 | Deep water intake system and operation method thereof |
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| CN109629525B true CN109629525B (en) | 2023-09-22 |
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| CN109629525B (en) * | 2018-12-21 | 2023-09-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep water intake system and operation method thereof |
| CN113882466A (en) * | 2021-09-10 | 2022-01-04 | 贵阳筑水水利产业发展有限公司 | Reservoir layering water intaking structure |
| CN114320303A (en) * | 2021-12-09 | 2022-04-12 | 中国铁建大桥工程局集团有限公司 | Method for excavating vertical shaft flood discharge tunnel body support |
| CN114775731A (en) * | 2022-04-21 | 2022-07-22 | 厦门大学 | Wind energy mechanical deep well water taking device and method |
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| WO2020125602A1 (en) | 2020-06-25 |
| CN109629525A (en) | 2019-04-16 |
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