CN209958319U - Torque symmetric hydraulic type ship lift water delivery system - Google Patents
Torque symmetric hydraulic type ship lift water delivery system Download PDFInfo
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- CN209958319U CN209958319U CN201920528171.XU CN201920528171U CN209958319U CN 209958319 U CN209958319 U CN 209958319U CN 201920528171 U CN201920528171 U CN 201920528171U CN 209958319 U CN209958319 U CN 209958319U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000009826 distribution Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 6
- 238000007667 floating Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
Torque symmetric hydraulic type ship lift water delivery system, the utility model belongs to the water conservancy field, concretely relates to ship lift water delivery device. The torque symmetry hydraulic ship lift water delivery system, when filling water, the water flow enters the system through the main pipeline control facility, enters the bottom pipelines of the vertical shafts at two sides through one-time flow splitting in the middle part, and then enters the vertical shafts through the branch pipelines to drive the floating barrels to ascend; when water is drained, water flows are converged to the middle main pipeline through the vertical shaft bottom branch pipes respectively, and are drained to a downstream river channel through a downstream control facility. The system has short water charging and discharging time and low investment cost, and can correspondingly improve the navigation efficiency.
Description
Technical Field
The invention belongs to the field of water conservancy, and particularly relates to a water delivery device of a ship lift.
Background
In order to fully utilize clean water energy resources, dams are often built on rivers to form power generation water heads, but with the building of a high dam and a large reservoir, the traditional navigation building (ship lock) cannot meet the requirement of high-fall navigation, so that the ship lift gradually enters the category of dam design, and has the characteristics of high running speed and capability of overcoming the large concentrated fall of the dams. The conventional ship lift is a navigation building which utilizes a mechanical device to lift a ship so as to overcome concentrated water level drop on a channel, and comprises a ship receiving chamber, a supporting and guiding structure, a driving device, an accident device and the like. Compared with the conventional mechanical ship lift, the hydraulic ship lift utilizes the buoyancy of water flow to drive the buoy and the ship receiving chamber to operate, has the advantages of environmental protection and energy conservation, represents a hydraulic ship lift of a scenic flood hydropower station which is designed by Kunming exploration design research institute, Inc., of China Electricity-building group, and is put into trial operation formally in 2016 and 12 months.
The equal inertia water delivery system is a type adopted by a hydraulic ship lift of a flood power station, and the synchronism of the movement of the floating cylinders in the vertical shaft can be ensured by analyzing from a theoretical angle. In the system, water flow enters each vertical shaft through four-time flow distribution, and the flow is averagely distributed, so that the synchronous lifting of the water level in the vertical shafts is realized, the stress balance of the floating barrels is ensured, and the purpose of the stress balance and consistency of ship-carrying chambers is further ensured. However, according to the analysis of the established project, the inertia water delivery system has the following problems:
(1) the inertia water delivery system can solve the problem of synchronous lifting of the water level of the vertical shaft in principle, but due to factors such as construction and installation quality, precision and the like, the effect of the system cannot completely accord with an ideal condition, the water level in the vertical shaft cannot be absolutely synchronous and balanced, so that the stress of winding drums on the upper parts of different vertical shafts is uneven, and a synchronous shaft and other measures are required to be adopted to offset the additional torque generated by asynchronous water level, so that the balanced lifting of a ship bearing chamber is realized.
(2) When inertia water delivery system according to its arrangement mode, need carry out once horizontal reposition of redundant personnel and cubic vertical reposition of redundant personnel, for satisfying cubic vertical reposition of redundant personnel and turning radius's requirement, will increase basic excavation degree of depth certainly, not only can make the investment increase, complicated pipe-line system has also increased the degree of difficulty for the construction moreover.
(3) In the equal-inertia water delivery system, as the three-time vertical diversion is a diversion mode of dividing the three-time vertical diversion into two parts, the single-side vertical shafts must be arranged according to multiples of 2, the arrangement positions of the vertical shafts cannot be flexibly adjusted according to the length of a ship chamber, the number of the vertical shafts is additionally increased, and the investment is correspondingly increased.
In addition, chinese patent application No. 201210100887.2, entitled unequal inertia water delivery system arrangement method of hydraulic floating type ship lift, the method is: the water flow flows out from the upstream main pipeline, is divided into two flow inlet galleries after passing through the upstream water filling valve, and finally flows into the downstream respectively, and the downstream is provided with a water drainage valve to control the descending speed of the water surface of the vertical shaft, so that all the balancing weights can descend simultaneously. The method has the same purpose as an equal inertia water delivery system, namely the water level synchronization problem can be solved from the theoretical aspect in order to ensure the synchronization of the water level of the vertical shaft, but the method has the following problems in popularization and application, so that the practicability is not strong.
(1) In order to improve the synchronism of the water level, the vertical shafts on the two sides are set into the galleries which are completely penetrated, the internal space of each vertical shaft is larger than that of the vertical shafts which are independently arranged, the water filling amount is correspondingly increased, the water filling and draining time is inevitably prolonged, the navigation efficiency is reduced, and the waste of water resources is also generated.
(2) In the method, the vertical shaft is equivalent to a hollow wall, and a truss is arranged in the vertical shaft and used as a pull rod to offset internal water pressure. However, practice shows that when the highest water head of the ship lift reaches dozens of meters, if the water head in a vertical shaft of the hydraulic ship lift of a flood station is as high as 60 meters, the hollow wall body cannot completely meet the requirements on structure and overall stability under the action of the truss pull rod, the internal water pressure needs to be offset by increasing the thickness of the wall body, and thus, the investment is additionally increased.
Therefore, the methods described in both the iso-inertial water delivery system and the chinese patent application No. 201210100887.2 need to be improved to reduce investment and increase feasibility of implementation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a torque symmetric hydraulic ship lift water delivery system which is simple in construction and low in manufacturing cost, overcomes the limitations of pursuing water level synchronization and even number of vertical shaft arrangement, and has stronger practicability.
The torque-symmetric hydraulic ship lift water delivery system is characterized in that the water delivery system comprises a vertical shaft, a main pipeline, a transverse main pipeline, a longitudinal main pipeline and branch pipelines; the middle of the transverse main pipeline is vertical and internally communicated with the main pipeline, two ends of the transverse main pipeline are respectively and internally communicated with two longitudinal main pipelines positioned at two sides of the main pipeline, and interfaces of the transverse main pipeline and the longitudinal main pipelines are positioned at the middle positions of all vertical shafts; the bottom of the vertical shaft is communicated with the longitudinal main pipeline through a branch pipeline.
The torque symmetric hydraulic ship lift water delivery system is characterized in that the arrangement method of the system comprises the following steps:
when the ship-receiving chamber goes down, the upstream control facility is opened, water flows enter the main pipeline, is shunted by the transverse main pipeline to enter the longitudinal main pipeline, and sequentially enters the vertical shaft from the bottom of the vertical shaft through the branch pipeline, and the buoy rises along with the water level in the vertical shaft to lower the ship-receiving chamber;
when the ship-carrying chamber ascends, the upstream control facility is closed, the downstream drainage facility is opened, water flow enters the longitudinal main pipeline through the branch pipeline at the bottom of the vertical shaft, then the water flow sequentially passes through the transverse main pipeline and the main pipeline and is drained to the downstream, and the buoy descends along with the water level in the vertical shaft to lift the ship-carrying chamber.
Through adjusting the branch pipe diameter, the water inflow of the vertical main pipes at two ends is controlled, so that the purpose of reducing the torque stress distribution ratio of the winding drum and the ship reception chamber is achieved, and the stress structure arrangement is optimized.
Because the influence of rivers inertia force, rivers can produce time interval when getting into the small transfer line through the trunk line, and the both ends of the vertical trunk line in both sides are preferred to be intake, and middle part shaft rivers get into slightly late, so the buoy will present height symmetric distribution situation in the shaft, and corresponding reel and synchronizing shaft will also present the torque distribution result that has the up-and-down stream symmetry, and the load-bearing chamber upstream and downstream side atress is balanced promptly, satisfies the stable requirement.
The water level difference is correspondingly generated in the vertical shaft. The water level hydraulic characteristics of the vertical shaft with symmetrical distribution can generate symmetrical torque which is beneficial to the stability of the ship reception chamber, so that the resultant torque on the ship reception chamber is zero, the stable balance of the ship reception chamber during anti-tilting is ensured, and the severe requirement of maintaining the water level balance synchronization in the vertical shaft is overcome.
The ship lift can utilize the water delivery system to form symmetrical torque to ensure the balance of ship-bearing chambers, and does not need to ensure the balance of the ship-bearing chambers through a symmetrical multi-stage flow distribution system, so that the vertical shafts on the left side and the right side of the ship lift can flexibly select an even number or odd number arrangement mode according to the specification required by design, and the defect that the water delivery system of the equal-inertia hydraulic ship lift can only arrange the vertical shafts in an even number is overcome.
In addition, the existing complex equal inertia pipeline system is replaced by the simple water pipeline, the water flow does not need to be divided for four times, the water flow can enter and exit the vertical shaft only through one-time division, and the safe lifting operation of the ship bearing chamber is met. The water filling and draining time is shortened, the navigation efficiency is improved, and the facility installation excavation depth is reduced, so that the engineering investment cost is reduced.
The water delivery system overcomes the defect that the complexity of the system is increased for achieving the water level synchronism of the vertical shaft, reduces the foundation excavation depth, can flexibly arrange the vertical shaft distribution according to the length of the ship, reduces the engineering investment, reduces the construction difficulty, and is a novel water delivery system which is more economical and safe.
Drawings
FIG. 1 is a three-dimensional view of an iso-inertial water delivery system.
FIG. 2 is a top view of the iso-inertial water delivery system.
FIG. 3 is a side view of an iso-inertial water delivery system.
Fig. 4 is a three-dimensional view of a water delivery system in accordance with embodiment 1 of the present invention.
Fig. 5 is a top view of the water delivery system of embodiment 1 of the present invention.
Fig. 6 is a diagram showing the water level distribution rule of the single-side shaft of the water delivery system in embodiment 1 of the present invention.
Fig. 7 is a diagram showing the distribution law of the stress of the single-side winding drum and the ship reception chamber of the water delivery system in embodiment 1 of the invention.
Fig. 8 is a schematic structural view of the ship lift.
In the figure: the main pipeline 1, the vertical shafts 2, the horizontal main pipeline 3, the longitudinal main pipeline 4, the pipelines 5, the vertical shafts 6, the vertical shafts 7, the vertical shafts 8, the vertical shafts 9, the buoys 10, the ship receiving chambers 11 and the winding drums 12.
Detailed Description
The method is further described in detail below with reference to the figures and the detailed description.
Example 1: a torque-symmetric hydraulic ship lift water delivery system is characterized in that eight vertical shafts 2 are arranged in each row of the water delivery system according to the design requirement of a ship bearing chamber 11, and are sequentially a vertical shaft A6, a vertical shaft B7, a vertical shaft C8, a vertical shaft D9, a vertical shaft A6, a vertical shaft B7, a vertical shaft C8 and a vertical shaft D9 which are uniformly arranged on longitudinal main pipes 4 respectively positioned on two sides of a main pipe 1. The centers of the eight vertical shafts in the two rows are communicated with the inside of the transverse main pipeline 3. The transverse main pipe 3 is vertically arranged in the middle and is communicated with the main pipe 1.
When the ship receiving chamber 11 descends, an upstream control facility is opened, water flow enters the main pipeline 1, is shunted by the transverse main pipeline 3 to enter the longitudinal main pipeline 4, and sequentially enters the vertical shaft 2 from the bottom of the vertical shaft 2 through the branch pipeline 5, the buoy 10 rises along with the water level in the vertical shaft 2, the buoy 10 rises, and the reel 12 lowers the ship receiving chamber 11.
When the ship receiving chamber 11 goes upwards, the upstream control facility is closed, the downstream drainage facility is opened, water flow enters the longitudinal main pipeline 4 through the branch pipeline 5 at the bottom of the vertical shaft 2 and then sequentially passes through the transverse main pipeline 3 and the main pipeline 1 to drain downwards, the buoy 10 descends along with the water level in the vertical shaft 2, the buoy 10 descends, and the reel 12 lifts the ship receiving chamber 11.
Due to the inertia of the water flow, the water flow in the longitudinal main pipeline 4 preferentially flows towards two ends and enters the vertical shaft A6, the vertical shaft B7, the vertical shaft C8 and the vertical shaft D9 in sequence. Through CFD software analysis, the water level in the shaft 2 shows the distribution rule shown in figure 6, and the water level gradually decreases from two ends to the middle and is symmetrically distributed. The distribution law of the torque of the ship reception chamber 11 and the winding drum 12 connected with the shaft 2 is shown in fig. 7, the torque gradually decreases from the middle to the two ends and is distributed symmetrically, and the resultant torque is zero. The ship reception chamber 11 can keep the characteristic of balanced lifting under the action of the symmetrical torque, so that the ship lift can safely and stably run.
As seen from comparison between the figure 1 and the figure 4, the water delivery system can greatly reduce the excavation depth of the foundation, save investment, and has simple arrangement and convenient construction, thereby shortening the construction period. Especially for rock foundations, the construction convenience and economy are outstanding.
Under the condition of the same ship lift scale (500 t level): compared with an equivalent inertia water delivery system, the water delivery system can reduce the excavation depth by about 14m and reduce the concrete backfill amount with corresponding depth; under the condition of the same pipe diameter of the main pipe, the water filling time and water consumption of the water delivery system in the Chinese application No. 201210100887.2 patent during water filling are about 1.6 times of that of the water delivery system.
The embodiment is only one of the preferable embodiments of the patent, and the protection scope of the patent is not limited thereby, and any changes made without departing from the scope of the technical solution are within the coverage scope of the invention.
Claims (2)
1. The torque-symmetric hydraulic ship lift water delivery system is characterized in that the water delivery system comprises a vertical shaft, a main pipeline, a transverse main pipeline, a longitudinal main pipeline and branch pipelines; the middle of the transverse main pipeline is vertical and internally communicated with the main pipeline, two ends of the transverse main pipeline are respectively and internally communicated with two longitudinal main pipelines positioned at two sides of the main pipeline, and interfaces of the transverse main pipeline and the longitudinal main pipelines are positioned at the middle positions of all vertical shafts; the bottom of the vertical shaft is communicated with the longitudinal main pipeline through a branch pipeline.
2. The torque symmetric hydraulic ship lift water delivery system according to claim 1, wherein the water inflow of the two vertical shafts of the main longitudinal pipes at both sides is controlled by adjusting the diameters of the branch pipes, so as to reduce the torque distribution ratio of the winding drum and the ship-bearing chamber, and optimize the arrangement of the stress structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920528171.XU CN209958319U (en) | 2019-04-18 | 2019-04-18 | Torque symmetric hydraulic type ship lift water delivery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920528171.XU CN209958319U (en) | 2019-04-18 | 2019-04-18 | Torque symmetric hydraulic type ship lift water delivery system |
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| Publication Number | Publication Date |
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| CN209958319U true CN209958319U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920528171.XU Withdrawn - After Issue CN209958319U (en) | 2019-04-18 | 2019-04-18 | Torque symmetric hydraulic type ship lift water delivery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914373A (en) * | 2019-04-18 | 2019-06-21 | 中国电建集团昆明勘测设计研究院有限公司 | Torque symmetric hydraulic type ship lift water delivery system |
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2019
- 2019-04-18 CN CN201920528171.XU patent/CN209958319U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914373A (en) * | 2019-04-18 | 2019-06-21 | 中国电建集团昆明勘测设计研究院有限公司 | Torque symmetric hydraulic type ship lift water delivery system |
| CN109914373B (en) * | 2019-04-18 | 2024-03-12 | 中国电建集团昆明勘测设计研究院有限公司 | Torque symmetric hydraulic ship lift water delivery system |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200117 Effective date of abandoning: 20240312 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200117 Effective date of abandoning: 20240312 |