An optimization method for water inlet and outlet of a water-saving pool of a ship lock and a water-saving pool structure

Abstract

The present application relates to the field of ship lock water-saving pool optimization, in particular to a ship lock water-saving pool inlet and outlet optimization method and a water-saving pool structure, the ship lock water-saving pool inlet and outlet optimization method constructs a ship lock water-saving pool model, sets a grid plate and a transverse wave-absorbing column in the water-saving pool of the ship lock water-saving pool model, tests the hydraulic characteristics of the ship lock water-saving pool model, determines the optimal grid plate setting mode of the ship lock water-saving pool model, determines the optimal installation position of the transverse wave-absorbing column of the ship lock water-saving pool model, determines the optimal initial water depth of the ship lock water-saving pool model, and realizes the rapid design of the ship lock water-saving pool; the water-saving pool structure restrains the water surface fluctuation in the water-saving pool through the grid plate and the transverse wave-absorbing column, the setting mode of the grid plate and the transverse wave-absorbing column is determined by the ship lock water-saving pool inlet and outlet optimization method, the liquid level in the water-saving pool is kept stable, the liquid level sensing device can accurately judge the liquid level height, and the water-saving rate of the water-saving pool is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship lock water-saving pool optimization, in particular to a ship lock water-saving pool inlet and outlet optimization method and water-saving pool structure. BACKGROUND

[0002] The ship lock is a device for enabling the ship to overcome the water level difference and sail, and the ship lock utilizes the principle of the communicating vessel to fill water or drain water in the lock chamber after the ship lock enters the lock chamber, so that the water level in the ship lock is leveled with the water area to be sailed, thereby enabling the ship to enter the low water level area from the high water level area or enter the high water level area from the low water level area; the conventional ship lock needs to take water from the high water level area when lifting or lowering the ship, which will affect the liquid level of the high water level area in the long-term use; for geographical environment where it is difficult to supplement water, the ship lock is usually provided with a water-saving pool, when filling water in the lock chamber, the water in the water-saving pool is used to fill water in the ship lock to raise the liquid level in the lock chamber; when draining water in the lock chamber, the water in the lock chamber is pumped to the water-saving pool to lower the liquid level in the lock chamber; thereby only a small amount of water needs to be pumped from the high water level area when the ship lock is running, and the water resource is reused to achieve the purpose of water saving; the current ship lock with high water-saving demand adopts a three-stage water-saving pool mode.

[0003] However, the three water-saving pools of the three-stage water-saving pool will cause the liquid level in the water-saving pool to fluctuate during operation, which will cause the liquid level sensing device in the water-saving pool to misjudge the liquid level height, thereby reducing the water-saving rate of the water-saving pool; in particular, when the ship lock drains water from the water-saving pool to the lock chamber, since each water inlet valve adopts a fast opening and closing operation mode, a relatively obvious surface vortex will be formed at the inlet and outlet of the water-saving pool near the maximum water flow rate time point when the uniform speed 1.0 min fast opening operation is simulated; when the ship lock chamber fills water to the water-saving pool, since each water inlet valve adopts a fast opening and closing operation mode, a relatively obvious water flow congestion phenomenon will occur at the water outlet of the water-saving pool when filling water to the water-saving pool when the uniform speed 1.0 min fast opening operation is simulated. SUMMARY

[0004] The present application aims to overcome the problem in the prior art that the water-saving pool will cause the liquid level in the water-saving pool to fluctuate when draining and filling water, thereby affecting the detection accuracy of the liquid level sensing device, and provides a ship lock water-saving pool inlet and outlet optimization method and water-saving pool structure.

[0005] In a first aspect, the present application provides a ship lock water-saving pool inlet and outlet optimization method, comprising the following steps

[0006] S1: constructing a ship lock water-saving pool model: constructing a ship lock water-saving pool model according to the ship lock water-saving pool;

[0007] The ship lock water-saving pool model is a water-saving pool of a ship lock water delivery system in a same scale, and the ship lock water-saving pool model can reflect the operation of the ship lock water-saving pool, so that a designer can adjust the design scheme of the ship lock water-saving pool through the ship lock water-saving pool model;

[0008] S2: setting the grid plate and the transverse wave-absorbing column: setting the grid plate at the water inlet and outlet of the ship lock water-saving pool model, and setting the transverse wave-absorbing column in the ship lock water-saving pool model;

[0009] The grid plate and the transverse wave-absorbing column are both used to reduce the liquid surface fluctuation of the water-saving pool, so that the sensing result of the liquid level sensing device is more accurate, and thus the water-saving performance of the water-saving pool is better;

[0010] S3: adjusting the grid plate and the transverse wave-absorbing column: adjusting the setting mode of the grid plate and adjusting the installation position of the transverse wave-absorbing column;

[0011] The setting mode of the grid plate and the installation position of the transverse wave-absorbing column in the water-saving pool are adjusted to change the liquid surface fluctuation of the water-saving pool;

[0012] S4: verifying the water flow state of the ship lock water-saving pool model: performing a hydraulic characteristic test on the ship lock water-saving pool model, obtaining and analyzing the water flow state data;

[0013] The hydraulic characteristic test is performed on the ship lock water-saving pool model, and the water flow state data after the adjustment of the grid plate and the transverse wave-absorbing column is determined through the analysis of the water flow state data;

[0014] S5: determining the optimization scheme of the ship lock water-saving pool model: repeating steps S3-S4 until the water flow state data of the ship lock water-saving pool model meets the requirements; determining the optimal setting mode of the grid plate of the ship lock water-saving pool model, determining the optimal installation position of the transverse wave-absorbing column of the ship lock water-saving pool model, and determining the optimal initial water depth of the ship lock water-saving pool model;

[0015] The adjustment mode of the grid plate and the transverse wave-absorbing column is determined through the analysis of the water flow state, until the water flow state data of the ship lock water-saving pool model meets the requirements; thus, the optimal setting mode of the grid plate of the ship lock water-saving pool model is determined, the optimal installation position of the transverse wave-absorbing column of the ship lock water-saving pool model is determined, and the optimal initial water depth of the ship lock water-saving pool model is determined;

[0016] S6: verifying the water flow pattern of the water-saving pool of the ship lock water conveying system: converting the optimal grid plate setting mode of the water-saving pool model, the optimal transverse wave-absorbing column installation mode of the water-saving pool model and the optimal initial water depth of the water-saving pool model into the optimal grid plate setting mode of the water-saving pool of the ship lock water conveying system, the optimal transverse wave-absorbing column installation mode of the water-saving pool of the ship lock water conveying system and the optimal initial water depth of the water-saving pool of the ship lock water conveying system, and verifying the water flow pattern of the water-saving pool of the ship lock water conveying system;

[0017] Converting the optimal grid plate setting mode of the water-saving pool model, the optimal transverse wave-absorbing column installation mode of the water-saving pool model and the optimal initial water depth of the water-saving pool model into the optimal grid plate setting mode of the water-saving pool of the ship lock water conveying system, the optimal transverse wave-absorbing column installation mode of the water-saving pool of the ship lock water conveying system and the optimal initial water depth of the water-saving pool of the ship lock water conveying system; making the water-saving pool of the ship lock water conveying system run in the actual running mode, and verifying whether the obtained optimization scheme meets the requirements.

[0018] The optimization method of the water inlet and outlet of the water-saving pool of the ship lock can quickly determine the optimization scheme of the water-saving pool of the ship lock water conveying system through the adjustment and test of the ship lock water-saving pool model, thereby accelerating the design speed of the ship lock; the grid plate and the transverse wave-absorbing column are arranged in the water-saving pool, the grid plate is arranged on the water outlet to divide the liquid injected into the water-saving pool from the water outlet, thereby reducing the water surface stagnation, and the grid plate can avoid the vortex in the water-saving pool when the water-saving pool is drained; the transverse wave-absorbing column reduces the water surface fluctuation by hindering the water flow, so that the liquid surface of the water-saving pool is more stable; the liquid surface fluctuation of the water-saving pool is controlled within a controllable range through the adjustment of the grid plate and the transverse wave-absorbing column, so that the liquid surface sensing device can obtain more accurate liquid surface height data; the water-saving pool model is subjected to a hydraulic characteristic test to simulate the water injection and drainage process of the water-saving pool of the ship lock water conveying system, so that the arrangement mode of the grid plate and the installation position of the transverse wave-absorbing column are more in line with the use requirements of the water-saving pool of the ship lock water conveying system; through repeated adjustment and verification, the optimal grid plate arrangement mode of the water-saving pool model is determined, the optimal installation position of the transverse wave-absorbing column of the water-saving pool model is determined, and the optimal initial water depth of the water-saving pool model is determined; the optimal grid plate arrangement mode of the water-saving pool model, the optimal installation mode of the transverse wave-absorbing column of the water-saving pool model, and the optimal initial water depth of the water-saving pool model are proportionally converted into the optimal grid plate arrangement mode of the water-saving pool of the ship lock water conveying system, the optimal installation mode of the transverse wave-absorbing column of the water-saving pool of the ship lock water conveying system, and the optimal initial water depth of the water-saving pool of the ship lock water conveying system; the optimal grid plate arrangement mode of the water-saving pool of the ship lock water conveying system, the optimal installation mode of the transverse wave-absorbing column of the water-saving pool of the ship lock water conveying system, and the optimal initial water depth of the water-saving pool of the ship lock water conveying system are applied to the ship lock water conveying system, so that the water-saving pool of the ship lock water conveying system operates in a working condition, and whether the obtained optimization scheme meets the requirements is verified; through the optimization method of the water inlet and outlet of the water-saving pool of the ship lock, the water-saving pool can be quickly optimized, thereby saving the design time of the ship lock and improving the design efficiency of the ship lock; the designed water-saving pool of the ship lock water conveying system has good liquid surface stability, so that the liquid level sensing device can more accurately determine the liquid surface height of the water-saving pool, thereby improving the water-saving rate of the water-saving pool of the ship lock water conveying system.

[0019] Preferably, in S3, the method of adjusting the arrangement mode of the grid plate comprises: adjusting the spacing of adjacent grid bars on the grid plate.

[0020] The grid plate has a plurality of parallel grid bars, the size of the grid channel on the grid plate can be controlled by controlling the spacing between the grid bars, and the shielding area of the grid plate to the water inlet and outlet can be changed by controlling the width of the grid bars, so that the grid plate can optimize the water flow of the water inlet and outlet, the liquid surface of the water-saving pool is kept stable during water injection or drainage, and the water-saving rate of the water-saving pool is improved.

[0021] Preferably, in S3, the method for adjusting the installation position of the transverse wave-damping column comprises: adjusting the distance between the transverse wave-damping column and the water inlet and outlet.

[0022] By adjusting the distance between the transverse wave-damping column and the water inlet and outlet, the transverse wave-damping column can better reduce the fluctuation of the water surface; by properly adjusting the distance between the transverse wave-damping column and the water inlet and outlet, the wave-damping capacity of the transverse wave-damping column is maximized, and the water surface of the water-saving pool is stabilized.

[0023] Preferably, the transverse wave-damping column comprises a plurality of columns, and adjacent columns are arranged at intervals; the method for adjusting the installation position of the transverse wave-damping column further comprises: adjusting the distance between adjacent columns.

[0024] The transverse wave-damping column is composed of a plurality of columns arranged at intervals, and the columns are inserted below the liquid surface of the water-saving pool. When the liquid surface fluctuates, the water flow collides with the wave-damping column to achieve deceleration, thereby stabilizing the liquid surface of the water-saving pool. By adjusting the distance between adjacent columns, the blocking area of the transverse wave-damping column to the water flow is adjusted, so that the liquid surface of the water-saving pool can be converted from a fluctuating state to a stable state.

[0025] Preferably, in S4, the method for obtaining the water flow flow pattern data is: selecting two points of a specified liquid surface height of the water-saving pool as a first measurement point and a second measurement point, and the first measurement point and the second measurement point are located on both sides of the transverse wave-damping column; when the water surface height of the water-saving pool reaches the specified liquid surface height, the water surface fluctuation data of the first measurement point and the second measurement point are measured respectively.

[0026] The first measurement point and the second measurement point can reflect the fluctuation of the liquid surface at the same liquid surface height of the water-saving pool.

[0027] Preferably, in S5, steps S3-S4 are repeated until the water surface fluctuation data of the first measurement point and the second measurement point of the ship lock water-saving pool model meet the requirements.

[0028] By ensuring that the water surface fluctuation data of the first measurement point and the second measurement point meet the requirements, it is ensured that the water surface fluctuation in the water-saving pool is within a controllable range, thereby improving the water-saving rate of the water-saving pool.

[0029] Preferably, the specified liquid surface height comprises the water-saving pool liquid surface height of the water-saving pool model at the maximum water head and the water-saving pool liquid surface height of the water-saving pool model at the lowest navigation water level.

[0030] By measuring the fluctuation of the highest water level and the fluctuation of the lowest water level of the water-saving pool, the adjustment of the grid plate and the transverse wave-damping column by the operating personnel is more in line with the actual use requirements, and the stability of the water surface of the water-saving pool is ensured.

[0031] Preferably, in S5, the method for determining the optimal initial water depth of the water-saving pool model comprises: filling the water-saving pool through the water inlet and outlet with different initial water depths, and determining the optimal initial water depth of the water-saving pool model by comparing the water flow patterns of the water-saving pool when the water-saving pool reaches the specified liquid level with different initial water depths.

[0032] By comparing the liquid level fluctuation when filling water with different initial water depths, the designed depth of the water-saving pool is more reasonable, and the water surface fluctuation of the water-saving pool is reduced.

[0033] In a second aspect, the present application provides a water-saving pool structure of a ship lock, comprising a pool, a grating plate and a transverse wave-absorbing column, the bottom of the pool is provided with a water inlet and outlet, the grating plate is arranged on the water inlet and outlet, the transverse wave-absorbing column is arranged in the pool and is spaced apart from the water inlet and outlet; the arrangement mode of the grating plate and the installation position of the transverse wave-absorbing column are determined by the above-mentioned optimization method of the water inlet and outlet of the water-saving pool of the ship lock.

[0034] The water-saving pool structure of the ship lock of the present application can slow down the water surface congestion when filling water into the water-saving pool through the water inlet and outlet by arranging the grating plate on the water inlet and outlet of the pool, so as to reduce the water surface fluctuation in the water-saving pool; when draining water from the water-saving pool through the water inlet and outlet, the grating plate can avoid the vortex in the water-saving pool, so as to keep the liquid level of the water-saving pool stable; the transverse wave-absorbing column is arranged in the pool, which can block the water flow in the water-saving pool, so as to further keep the liquid level of the water-saving pool stable, thereby improving the detection accuracy of the liquid level sensing device and the water-saving rate of the water-saving pool.

[0035] Preferably, the water inlet and outlet comprises two water inlet and outlet chambers connected with each other, the top of the water inlet and outlet chamber is provided with an opening, and the grating plate is arranged on the opening; each water inlet and outlet chamber is connected with a water inlet and outlet pipeline.

[0036] By arranging the grating plate on the opening, the water flow passing through the opening is dispersed, so as to ensure the smooth liquid level of the water-saving pool.

[0037] Preferably, the grid plate has a middle passage, a first grid area and a second grid area, the first grid area and the second grid area are respectively arranged on both sides of the middle passage, a plurality of first grid bars are arranged in the first grid area, adjacent first grid bars are arranged at intervals to form a first grid passage; a plurality of second grid bars are arranged in the second grid area, adjacent first grid bars are arranged at intervals to form a second grid passage; the first grid area is located on the side of the grid plate close to the water inlet and outlet pipeline, the width of the middle passage is greater than the width of the first grid passage, the width of the middle passage is greater than the width of the second grid passage, and the width of the second grid passage is greater than the width of the first grid passage.

[0038] According to the flow state of the water flow in the water inlet and outlet chamber, the water flow speed near the water inlet and outlet pipeline in the water inlet and outlet chamber is faster, so that the adjacent first grid bars in the first grid area have a shorter interval, and the blocking effect on the water flow is better; the water flow has a faster flow speed after impacting the wall of the water inlet and outlet chamber, and the second grid bars in the second grid area block and divide the water flow with a faster flow speed, thereby slowing down the flow speed of the water flow; the water flow in the middle passage has a slower flow speed, so that the water flow can be quickly discharged from the water inlet and outlet chamber.

[0039] Preferably, the water inlet and outlet is provided with the transverse wave-absorbing column on both sides.

[0040] By increasing the blocking area, the transverse wave-absorbing column improves the stability effect on the liquid surface of the water-saving pool.

[0041] Preferably, the water pool is provided with two water inlets and outlets, and the two water inlets and outlets are arranged at intervals.

[0042] By arranging two water inlets and outlets in the water pool, the water is divided when entering or discharging the water-saving pool, and the liquid surface fluctuation is slowed down.

[0043] Compared with the prior art, the beneficial effects of the present application are:

[0044] 1. A method for optimizing the water inlet and outlet of a ship lock water-saving pool, by constructing a ship lock water-saving pool model, designers can quickly determine the optimization scheme for the ship lock water-saving pool by adjusting and testing the ship lock water-saving pool model, thereby speeding up the design speed of the ship lock; A grid plate and a transverse wave-absorbing column are arranged in the water-saving pool, the grid plate is arranged on the water outlet by covering the water outlet to divide the liquid injected into the water-saving pool from the water outlet, thereby reducing the water surface stagnation, and the grid plate can avoid vortex in the water-saving pool when the water-saving pool is drained; The transverse wave-absorbing column reduces water surface fluctuation by obstructing water flow, making the water surface of the water-saving pool more stable; By adjusting the grid plate and the transverse wave-absorbing column, the water surface fluctuation of the water-saving pool is within a controllable range, so that the liquid level sensing device can obtain more accurate liquid level data; The water-saving pool model is subjected to a hydraulic characteristic test to simulate the water injection and drainage process of the ship lock water-saving pool, so that the arrangement mode of the grid plate and the installation position of the transverse wave-absorbing column are more in line with the use requirements of the ship lock water-saving pool; By repeated adjustment and verification, the optimal grid plate arrangement mode of the ship lock water-saving pool model is determined, the optimal transverse wave-absorbing column installation position of the ship lock water-saving pool model is determined, and the optimal initial water depth of the ship lock water-saving pool model is determined; The optimal grid plate arrangement mode of the water-saving pool model, the optimal transverse wave-absorbing column installation mode of the water-saving pool model, and the optimal initial water depth of the water-saving pool model are proportionally converted into the optimal grid plate arrangement mode of the ship lock water-saving pool, the optimal transverse wave-absorbing column installation mode of the ship lock water-saving pool, and the optimal initial water depth of the ship lock water-saving pool; The optimal grid plate arrangement mode of the ship lock water-saving pool, the optimal transverse wave-absorbing column installation mode of the ship lock water-saving pool, and the optimal initial water depth of the ship lock water-saving pool are applied to the ship lock water system, so that the ship lock water-saving pool operates under working conditions, and whether the obtained optimization scheme meets the requirements is verified; By using the method for optimizing the water inlet and outlet of a ship lock water-saving pool, the water-saving pool can be quickly optimized, thereby saving the design time of the ship lock and improving the design efficiency of the ship lock; The designed ship lock water-saving pool has good liquid surface stability, so that the liquid level sensing device can more accurately determine the liquid level of the water-saving pool, thereby improving the water-saving rate of the ship lock water-saving pool;

[0045] 2. A water-saving pool structure of a ship lock, a grid plate is arranged at the water inlet and outlet of the pool, the grid plate can divide the water flow, when water is injected into the water-saving pool through the water inlet and outlet, the divided water flow can slow down the water surface stagnation, thereby reducing the water surface fluctuation in the water-saving pool; When the water-saving pool is drained through the water inlet and outlet, the grid plate can avoid vortex in the water-saving pool, thereby keeping the liquid surface of the water-saving pool stable; A transverse wave-absorbing column is arranged in the pool, the transverse wave-absorbing column blocks the water flow in the water-saving pool, thereby further keeping the liquid surface of the water-saving pool stable, thereby improving the detection accuracy of the liquid level sensing device and the water-saving rate of the water-saving pool. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 Flow chart of the optimization method for the water inlet and outlet of a ship lock water-saving pool according to the present application;

[0047] Figure 2 Schematic diagram of the grid form structure of the improvement scheme 1 of the embodiment 1 of the present application;

[0048] Figure 3 Schematic diagram of the grid form structure of the improvement scheme 2 of the embodiment 1 of the present application;

[0049] Figure 4 Schematic diagram of the arrangement of the transverse wave-breaking column of the improvement scheme 3 of the embodiment 1 of the present application;

[0050] Figure 5 Water level fluctuation table of the first-stage water-saving pool of the embodiment 1 of the present application;

[0051] Figure 6 Water level fluctuation table of the second-stage water-saving pool of the embodiment 1 of the present application;

[0052] Figure 7 Schematic diagram of the structure of the water-saving pool structure of a ship lock according to the present application;

[0053] Figure 8 Schematic diagram of the structure of the grid plate of the embodiment 2 of the present application;

[0054] Figure 9 Schematic diagram of the structure of the water-saving pool structure of a ship lock of the embodiment 2.

[0055] Markings in the drawings:

[0056] 1-SC1-c measuring point, 2-SC2-c measuring point, 3-SC3-c measuring point, 4-SC4-c measuring point, 5-SC5-c measuring point, 6-SC6-c measuring point, 7-SC7-c measuring point, 8-SC8-c measuring point,

[0057] 101-pool, 102-transverse wave-breaking column, 103-water inlet and outlet, 1031-water inlet and outlet chamber, 104-first grid bar, 105-second grid bar, 106-middle passage, 107-first grid passage, 108-second grid passage. DETAILED DESCRIPTION

[0058] The present application will be further described in conjunction with specific embodiments. However, it should not be understood that the above-mentioned subject matter of the present application is limited to the following embodiments only, and any technology realized based on the content of the present application falls within the scope of the present application.

[0059] In the description of specific embodiments of the present application, the terms of orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are expressed based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product / device / apparatus of the present application is usually used, unless otherwise specified. These terms of orientation or positional relationship are only for the convenience of describing the present application or simplifying the description in specific embodiments to facilitate the quick understanding of the scheme by the skilled person, and do not indicate or imply that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship, and therefore cannot be understood as a limitation on the present application.

[0060] In addition, the terms "horizontal", "vertical", "suspended", "parallel", etc. do not mean that the corresponding device / component / element must be absolutely horizontal or vertical or suspended or parallel, but can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to mean that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "suspended", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8% or less, more preferably an error / deviation of ±6% or less, more preferably an error / deviation of ±5% or less, and more preferably an error / deviation of ±4% or less. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present application.

[0061] In addition, the terms "first", "second", "third", etc. in the description of the present application are only used to distinguish the same or similar components, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0062] In addition, in the description of the embodiments of the present application, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. in any case, and even more than 9.

[0063] In addition, in the description of the technical scheme of the present application, unless otherwise specified / limited / limited, the terms "arrangement", "installation", "connection", "connection", "provided with", "laid", "arrangement" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, such as welding, riveting, bolting, screwing, etc. The connection means commonly used in the art. Such connection can be mechanical connection, or electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements.

[0064] Embodiment 1

[0065] As Figures 1-6 shown, a method for optimizing the water inlet and outlet of a ship lock water-saving pool, comprising the following steps

[0066] S1: constructing a ship lock water-saving pool model: constructing a ship lock water-saving pool model according to the ship lock water-saving pool;

[0067] S2: setting a grid plate and a transverse wave-absorbing column: setting a grid plate at the water inlet and outlet of the ship lock water-saving pool model, and setting a transverse wave-absorbing column in the ship lock water-saving pool model;

[0068] S3: adjusting the grid plate and the transverse wave-absorbing column: adjusting the setting mode of the grid plate and the installation position of the transverse wave-absorbing column;

[0069] S4: verifying the water flow pattern of the ship lock water-saving pool model: performing a hydraulic characteristic test on the ship lock water-saving pool model, obtaining and analyzing water flow pattern data;

[0070] S5: determining the optimization scheme of the ship lock water-saving pool model: repeating steps S3-S4 until the water flow pattern data of the ship lock water-saving pool model meets the requirements; determining the optimal grid plate setting mode of the ship lock water-saving pool model, determining the optimal transverse wave-absorbing column installation position of the ship lock water-saving pool model, and determining the optimal initial water depth of the ship lock water-saving pool model;

[0071] S6: verifying the water flow pattern of the ship lock water-saving pool: converting the optimal grid plate setting mode of the ship lock water-saving pool model, the optimal transverse wave-absorbing column installation mode of the ship lock water-saving pool model, and the optimal initial water depth of the ship lock water-saving pool model into the optimal grid plate setting mode of the ship lock water-saving pool, the optimal transverse wave-absorbing column installation mode of the ship lock water-saving pool, and the optimal initial water depth of the ship lock water-saving pool, and verifying the water flow pattern of the ship lock water-saving pool.

[0072] By constructing the ship lock water-saving pool model, the designer can quickly determine the optimization scheme of the ship lock water-saving pool by adjusting and testing the ship lock water-saving pool model, thereby speeding up the design speed of the ship lock; the grid plate and the transverse wave-absorbing column are arranged in the water-saving pool, the grid plate is arranged on the water outlet by covering to divide the liquid injected into the water-saving pool from the water outlet, thereby reducing the water surface stagnation, and the grid plate can avoid the vortex in the water-saving pool when the water-saving pool is discharged; the transverse wave-absorbing column reduces the water surface fluctuation by hindering the water flow, so that the water surface of the water-saving pool is more stable; by adjusting the grid plate and the transverse wave-absorbing column, the water surface fluctuation of the water-saving pool is within a controllable range, so that the liquid level sensing device can obtain more accurate liquid level data; the water-saving pool model is subjected to a hydraulic characteristic test, the water injection and discharge process of the ship lock water-saving pool is simulated, the arrangement mode of the grid plate and the installation position of the transverse wave-absorbing column are more in line with the use requirements of the ship lock water-saving pool; by repeated adjustment and verification, the optimal grid plate arrangement mode of the ship lock water-saving pool model is determined, the optimal transverse wave-absorbing column installation position of the ship lock water-saving pool model is determined, and the optimal initial water depth of the ship lock water-saving pool model is determined; the optimal grid plate arrangement mode of the water-saving pool model, the optimal transverse wave-absorbing column installation mode of the water-saving pool model and the optimal initial water depth of the water-saving pool model are proportionally converted into the optimal grid plate arrangement mode of the ship lock water-saving pool, the optimal transverse wave-absorbing column installation mode of the ship lock water-saving pool and the optimal initial water depth of the ship lock water-saving pool; the optimal grid plate arrangement mode of the ship lock water-saving pool, the optimal transverse wave-absorbing column installation mode of the ship lock water-saving pool and the optimal initial water depth of the ship lock water-saving pool are applied to the ship lock water-saving pool, so that the ship lock water-saving pool operates in the working condition, and whether the obtained optimization scheme meets the requirements is verified; by using the optimization method of the ship lock water-saving pool inlet and outlet provided by the application, the water-saving pool can be quickly optimized, thereby saving the design time of the ship lock and improving the design efficiency of the ship lock; the designed ship lock water-saving pool has good liquid surface stability, so that the liquid level sensing device can more accurately determine the liquid level height of the water-saving pool, thereby improving the water-saving rate of the ship lock water-saving pool.

[0073] In one or several embodiments, in S3, the method for adjusting the arrangement mode of the grid plate is: adjusting the distance between adjacent grid bars on the grid plate; the grid bars on the grid plate are arranged at intervals, and adjacent grid bars are parallel to each other; by adjusting the distance between the grid bars on the grid plate, the size of the grid channel on the grid plate can be adjusted, thereby adjusting the position of the water flow passing through the grid plate, thereby reducing the liquid surface fluctuation of the water-saving pool; in some embodiments, by adjusting the width of the grid bar, the blocking area of the grid bar to the water flow is changed, and the flow rate of the water flow is changed; the grid channel can supply the water flow to pass through the grid plate.

[0074] In one or more embodiments, in S3, the method for adjusting the installation position of the transverse wave-damping column includes: adjusting the distance between the transverse wave-damping column and the water inlet and outlet; and connecting the two ends of the transverse wave-damping column to the two side walls of the water-saving pool opposite to each other, so that the transverse wave-damping column can block the water flow in the water-saving pool, thereby stabilizing the water level of the water-saving pool on the side of the transverse wave-damping column away from the water inlet and outlet.

[0075] In an optional embodiment, the transverse wave-damping column includes a plurality of columns, and adjacent columns are arranged at intervals; and the method for adjusting the installation position of the transverse wave-damping column further includes: adjusting the distance between adjacent columns; and through the interval arrangement of the plurality of columns, the columns can block the water flow, thereby reducing the water surface fluctuation, and the water flow can flow through the gap between adjacent columns.

[0076] In one or more embodiments, in S4, the method for obtaining the water flow state data includes: selecting two points of a specified water level of the water-saving pool as a first measurement point and a second measurement point, and the first measurement point and the second measurement point are located on the two sides of the transverse wave-damping column, respectively; and measuring the water surface fluctuation data of the first measurement point and the second measurement point when the water level of the water-saving pool reaches the specified water level, respectively; the first measurement point and the second measurement point measure the water surface fluctuation on the two sides of the transverse wave-damping column, respectively, which can provide data support for the adjustment of the wave-damping column, so that the designer can more quickly adjust the wave-damping column.

[0077] In an optional embodiment, in S5, steps S3-S4 are repeated until the water surface fluctuation data of the first measurement point and the second measurement point of the ship lock water-saving pool model meet the requirements; and the water surface fluctuation data of the first measurement point and the second measurement point meet the requirements, thereby ensuring that the water surface of the water-saving pool is maintained stable.

[0078] In an optional embodiment, the specified water level includes the water level of the water-saving pool model at the maximum water head and the water level of the water-saving pool model at the lowest navigation water level; and by measuring the highest water level and the lowest water level of the water-saving pool, the working personnel can adjust the setting mode of the whole grid plate and the installation position of the transverse wave-damping column in the water-saving pool.

[0079] In one or more embodiments, in S5, the method for determining the optimal initial water depth of the water-saving pool model includes: injecting water into the water-saving pool through the water inlet and outlet at different initial water depths, and determining the optimal initial water depth of the water-saving pool model by comparing the water flow state of the water-saving pool when the water-saving pool reaches the specified water level at different initial water depths; the depth of the water-saving pool has an influence on the water level fluctuation when the water-saving pool is injected with water, and by determining the optimal depth of the water-saving pool, the water level fluctuation of the water-saving pool is reduced.

[0080] Specifically, the following three schemes are adopted to improve the water flow state of the water inlet and outlet of the three-stage water-saving pool model:

[0081] Improvement scheme 1, i.e. adding a grid at the inlet and outlet of each provincial pool of the ship lock, the grid type is selected as Figure 2 .

[0082] Improvement scheme 2, i.e. adding a grid at the inlet and outlet of each provincial pool of the ship lock, the grid type is selected as Figure 3 .

[0083] Improvement scheme 3, i.e. on the basis of improvement scheme 2, transverse wave-absorbing columns are additionally arranged inside the provincial pool, as shown in Figure 4 to further reduce the water surface fluctuation inside the provincial pool and improve the monitoring accuracy of the provincial pool water level when the valve is opened and closed.

[0084] After taking the above measures, it is observed in the test that when the ship lock is filled with water, the water flow vortex phenomenon at the inlet of the provincial pool is significantly weakened, and when improvement scheme 2 or improvement scheme 3 is adopted, only occasional surface vortex exists at the inlet of the provincial pool, and the overall water flow condition is obviously improved; when the ship lock is discharged, the local water surface is higher at the outlet of the provincial pool, but when improvement scheme 1 is adopted, there is still a large water surface, and when improvement scheme 2 is adopted, the water surface at the outlet is well controlled, and the overall water surface fluctuation in the provincial pool is reduced; and when improvement scheme 3 is adopted, the water surface fluctuation outside the wave-absorbing column is further improved, and the effect is good.

[0085] In order to quantitatively analyze the water surface fluctuation in the provincial pool and the corresponding improvement, water level measuring points SC1-c measuring point 1, SC2-c measuring point 2, SC3-c measuring point 3, SC4-c measuring point 4, SC5-c measuring point 5, SC6-c measuring point 6, SC7-c measuring point 7 and SC8-c measuring point 8 are arranged in the first-stage provincial pool and the second-stage provincial pool; SC5-c measuring point 5, SC6-c measuring point 6, SC7-c measuring point 7 and SC8-c measuring point 8 are located in the first-stage provincial pool, and SC1-c measuring point 1, SC2-c measuring point 2, SC3-c measuring point 3 and SC4-c measuring point 4 are located in the second-stage provincial pool; under the combination of the maximum water head and the lowest navigation water level, when the ship lock water inlet valve is opened at a uniform speed of tv=tv1=1.0min and the connecting valve is closed at a uniform speed of tv2=0.5min, the water level fluctuation indexes in the provincial pool under different arrangement schemes are shown in Figure 5 and Figure 6 , wherein the positive value represents the water surface fluctuation relative to the average water level of the provincial pool at the same time, and the negative value represents the water surface fluctuation relative to the average water level of the provincial pool at the same time.

[0086] From the table, it can be seen that:

[0087] (1) Under the original scheme (without grating and wave-absorbing columns), the overall water surface fluctuation in the water-saving pool is relatively large. Under the maximum water head condition, the measured maximum fluctuation in the first-stage water-saving pool is 0.50 m, and the maximum backwater is 0.36 m. The measured maximum fluctuation in the second-stage water-saving pool is 0.84 m, and the maximum backwater is 0.79 m.

[0088] (2) After adopting the improved scheme 1, the water surface fluctuation in the water-saving pool is improved. Under the maximum water head condition, the measured maximum fluctuation in the first-stage water-saving pool is 0.37 m, and the maximum backwater is 0.11 m. The measured maximum fluctuation in the second-stage water-saving pool is 0.61 m, and the maximum backwater is 0.71 m.

[0089] (3) After adopting the improved scheme 2, the water surface fluctuation in the water-saving pool is significantly improved. Under the maximum water head condition, the measured maximum fluctuation in the first-stage water-saving pool is 0.30 m, and the maximum backwater is 0.11 m. The measured maximum fluctuation in the second-stage water-saving pool is 0.51 m, and the maximum backwater is 0.49 m.

[0090] (4) After adopting the improved scheme 3, the overall water surface fluctuation in the water-saving pool is further improved. Under the maximum water head condition, the measured maximum fluctuation in the first-stage water-saving pool is 0.29 m, and the maximum backwater is 0.08 m. The measured maximum fluctuation in the second-stage water-saving pool is 0.26 m, and the maximum backwater is 0.51 m. Under the lowest navigation water level combination condition, due to the shallow initial water depth in the water-saving pool, the water level fluctuation is larger than that under the maximum water head condition. The measured maximum fluctuation in the first-stage water-saving pool is 0.49 m, and the maximum backwater is 0.25 m. The measured maximum fluctuation in the second-stage water-saving pool is 0.66 m, and the maximum backwater is 1.43 m (near the water outlet area).

[0091] (5) Based on the above analysis, the improved scheme 3 has better effect on the liquid surface stability of the water-saving pool. Meanwhile, considering that the two water inlet and outlet ports of the second-stage water-saving pool are arranged in the middle of the pool chamber, causing the water surface fluctuation to be significantly larger than that of the first-stage water-saving pool, it is recommended to adopt a dispersed arrangement similar to the first-stage water-saving pool if conditions permit. In addition, it is found that the initial water depth of the water-saving pool has a significant impact on the water surface fluctuation. When the water depth is shallow, the water surface fluctuation generated during water conveyance increases significantly. It is recommended to appropriately increase the initial water depth of the water-saving pool if conditions permit.

[0092] The ship lock is provided with three-stage water-saving pools, the water-saving pools are arranged on one side of the lock chamber, the first-stage and third-stage water-saving pools are arranged in overlap, and the second-stage water-saving pool is arranged separately, the ratio of the water area of each water-saving pool of the ship lock to the water area of the lock chamber is 1.40:1; the first-stage water-saving pool is adapted to the water level change of 49.15-57.76 m; the second-stage water-saving pool is adapted to the water level change of 44.10-51.88 m; and the third-stage water-saving pool is adapted to the water level change of 39.05-46.00 m.

[0093] Embodiment 2

[0094] As Figures 7-9 shown, a water-saving pool structure of a ship lock comprises a pool 101, a grating plate and a transverse wave-damping column 102, the bottom of the pool 101 is provided with an inlet and outlet water port 103, the grating plate is arranged on the inlet and outlet water port 103, the transverse wave-damping column 102 is arranged in the pool 101 and is spaced apart from the inlet and outlet water port 103; the arrangement mode of the grating plate and the installation position of the transverse wave-damping column 102 are determined by the optimization method of the inlet and outlet water port of a ship lock water-saving pool in embodiment 1.

[0095] By arranging the grating plate on the inlet and outlet water port 103 of the pool 101, the grating plate can split the water flow, when water is injected into the water-saving pool through the inlet and outlet water port 103, the water flow after being split by the grating plate can slow down the water surface heightening, thereby reducing the water surface fluctuation in the water-saving pool; when the water-saving pool is drained through the inlet and outlet water port 103, the grating plate can avoid the vortex in the water-saving pool, thereby keeping the liquid level of the water-saving pool stable; by arranging the transverse wave-damping column 102 in the pool 101, the water flow in the water-saving pool is blocked by the transverse wave-damping column 102, thereby further keeping the liquid level of the water-saving pool stable, thereby improving the detection accuracy of the liquid level sensing device and improving the water-saving rate of the water-saving pool.

[0096] In one or several embodiments, the inlet and outlet water port 103 comprises two inlet and outlet water chambers 1031 connected with each other, the two inlet water chambers are arranged side by side, an opening is arranged on the top of the inlet and outlet water chamber 1031, the water-saving pool is injected and drained through the opening, and the grating plate is arranged on the opening to split the water flow passing through the opening; each inlet and outlet water chamber 1031 is connected with an inlet and outlet water pipeline.

[0097] In an optional embodiment, the grid plate has a middle passage, a first grid area and a second grid area. The middle passage is a through passage arranged in the middle of the grid plate. The first grid area and the second grid area are arranged on the two sides of the middle passage, respectively. A plurality of first grid bars 104 are arranged in the first grid area. The first grid bars 104 are parallel to each other. Adjacent first grid bars 104 are arranged at intervals to form first grid passages 107. Water flow can enter or discharge the water inlet and outlet chamber 1031 through the first grid passages 107. A plurality of second grid bars 105 are arranged in the second grid area. The second grid bars 105 are parallel to each other. Adjacent first grid bars 104 are arranged at intervals to form second grid passages 108. Water flow can enter or discharge the water inlet and outlet chamber 1031 through the second grid passages 108. The first grid area is located on the side of the grid plate close to the water inlet and outlet pipeline. The width of the middle passage is greater than the width of the first grid passage 107. The width of the middle passage is greater than the width of the second grid passage 108. The width of the second grid passage 108 is greater than the width of the first grid passage 107. The grid plate is arranged according to the flow state of the water flow in the water inlet and outlet chamber 1031. Because the water flow close to the water inlet and outlet pipeline in the water inlet and outlet chamber 1031 is faster, the interval between adjacent first grid bars in the first grid area is shorter, and the blocking effect on the water flow is better. After the water flow hits the wall of the water inlet and outlet chamber 1031, it has a faster flow rate. The second grid bars in the second grid area block and divide the water flow with a faster flow rate, thereby slowing down the flow rate of the water flow. The water flow in the middle passage has a slower flow rate, so that the water flow can be quickly discharged from the water inlet and outlet chamber 1031.

[0098] In an optional embodiment, different second grid bars 105 have different specifications.

[0099] In an optional embodiment, two transverse wave-absorbing columns 102 are arranged on the two sides of the water inlet and outlet port 103. The blocking area is increased to improve the stabilizing effect of the transverse wave-absorbing column 102 on the liquid surface of the water-saving pool. In some embodiments, two transverse wave-absorbing columns 102 are arranged on one side of the water inlet and outlet port 103, and two transverse wave-absorbing columns 102 are arranged on the other side. The transverse wave-absorbing column 102 is composed of a plurality of columns arranged in a straight line. Adjacent columns have an interval.

[0100] In one or more embodiments, two water inlet and outlet ports 103 are arranged in the pool 101. The two water inlet and outlet ports 103 are arranged at intervals. The liquid surface in the water-saving pool is stabilized by arranging multiple water inlet and outlet ports 103.

[0101] Specifically, the grid plate has six first grid bars 104, three second grid bars 105, and can be simultaneously arranged on two water inlet and outlet chambers 1031. The width of the first grid bar 104 is 500 mm, and the spacing between adjacent first grid bars 104 increases from the edge to the middle of the grid plate according to 40 mm, 60 mm, 80 mm, 100 mm, and 120 mm. The widths of the three second grid bars 105 are 900 mm, 1500 mm, and 900 mm in sequence, and the spacing between adjacent second grid bars 105 is 1500 mm and 1000 mm. The distance between the second grid bar 105 and the opening edge of the water inlet and outlet chamber 1031 is 3600 mm. The middle passage is formed between the first grid bar 104 and the second grid bar 105, the spacing between the first grid bar 104 and the second grid bar 105 is 4800 mm, and the length of the first grid bar 104 and the second grid bar 105 is 26000 mm.

[0102] In one or more embodiments, as shown in Figure 9 The water tank 101 is provided with two water inlets and outlets 103, which are dispersedly arranged at the bottom of the water tank 101. Transverse wave-absorbing columns 102 are arranged on both sides of each water inlet and outlet 103.

[0103] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for optimizing the water intake and outtake of a water-saving basin of a ship lock, characterized in that, The method comprises the following steps S1: constructing a ship lock water-saving pool model: constructing a ship lock water-saving pool model according to a ship lock water-saving pool; S2: setting a grid plate and a transverse wave-absorbing column: setting a grid plate at the water inlet and outlet of the ship lock water-saving pool model, and setting a transverse wave-absorbing column in the ship lock water-saving pool model; S3: adjusting the grid plate and the transverse wave-absorbing column: adjusting the setting mode of the grid plate and the installation position of the transverse wave-absorbing column; S4: verifying the water flow state of the ship lock water-saving pool model: performing a hydraulic characteristic test on the ship lock water-saving pool model, obtaining and analyzing water flow state data; S5: determining the optimization scheme of the ship lock water-saving pool model: repeating steps S3-S4 until the water flow state data of the ship lock water-saving pool model meet the requirements; determining the optimal setting mode of the grid plate of the ship lock water-saving pool model, determining the optimal installation position of the transverse wave-absorbing column of the ship lock water-saving pool model, and determining the optimal initial water depth of the ship lock water-saving pool model; S6: verifying the water flow state of the ship lock water-saving pool: converting the optimal setting mode of the grid plate of the ship lock water-saving pool model, the optimal installation mode of the transverse wave-absorbing column of the ship lock water-saving pool model, and the optimal initial water depth of the ship lock water-saving pool model into the optimal setting mode of the grid plate of the ship lock water-saving pool, the optimal installation mode of the transverse wave-absorbing column of the ship lock water-saving pool, and the optimal initial water depth of the ship lock water-saving pool, and verifying the water flow state of the ship lock water-saving pool.

2. The method for optimizing the water inlet and outlet of a ship lock water-saving basin according to claim 1, characterized in that, In S3, the method for adjusting the setting mode of the grid plate comprises adjusting the spacing of adjacent grid bars on the grid plate.

3. The method of optimizing the approach and departure of a ship to a water-saving basin of a ship lock according to claim 1, characterized in that, In S3, the method for adjusting the installation position of the transverse wave-absorbing column comprises adjusting the spacing between the transverse wave-absorbing column and the water inlet and outlet.

4. The method for optimizing the water inlet and outlet of a ship lock water-saving basin according to claim 3, characterized in that, The transverse wave-absorbing column comprises a plurality of columns, and adjacent columns are arranged at intervals; the method for adjusting the installation position of the transverse wave-absorbing column further comprises adjusting the spacing between adjacent columns.

5. The method of optimizing the approach and departure of a ship to a water-saving basin of a ship lock according to claim 1, characterized in that, In S4, the method for obtaining the water flow state data comprises selecting two points at a specified liquid level of the water-saving pool as a first measurement point and a second measurement point, and the first measurement point and the second measurement point are located on the two sides of the transverse wave-absorbing column; when the water level of the water-saving pool reaches the specified liquid level, the water surface fluctuation data of the first measurement point and the second measurement point are measured respectively.

6. The method for optimizing the water inlet and outlet of a ship lock water-saving basin according to claim 5, characterized in that, In S5, steps S3-S4 are repeated until the water surface fluctuation data of the first measurement point and the second measurement point of the ship lock water-saving pool model meet the requirements.

7. The method for optimizing the water inlet and outlet of a ship lock water-saving basin according to claim 5, characterized in that, The specified liquid level comprises the water-saving pool liquid level of the ship lock water-saving pool model at the maximum water head and the water-saving pool liquid level of the ship lock water-saving pool model at the lowest navigation water level.

8. The method of optimizing the approach and departure of a ship to a water-saving basin of a ship lock according to claim 1, characterized in that, In S5, the method for determining the optimal initial water depth of the ship lock water-saving pool model comprises injecting water into the water-saving pool through the water inlet and outlet at different initial water depths, and determining the optimal initial water depth of the ship lock water-saving pool model by comparing the water flow state of the water-saving pool at different initial water depths when the water-saving pool reaches the specified liquid level.

9. A water saving basin structure of a ship lock, characterized by The application relates to a ship lock water-saving pool inlet and outlet, which comprises a pool (101), a grating plate and transverse wave-absorbing columns (102), the bottom of the pool (101) is provided with an inlet and outlet (103), the grating plate is arranged on the inlet and outlet (103), the transverse wave-absorbing columns (102) are arranged in the pool (101) and are spaced from the inlet and outlet (103); the arrangement mode of the grating plate and the installation position of the transverse wave-absorbing columns (102) are determined by the optimization method of a ship lock water-saving pool inlet and outlet according to any one of claims 1-8.

10. A water saving basin structure for a ship lock according to claim 9, wherein The inlet and outlet (103) comprises two mutually connected inlet and outlet chambers (1031), the top of the inlet and outlet chambers (1031) is provided with an opening, and the grating plate is arranged on the opening; each inlet and outlet chamber (1031) is connected with an inlet and outlet pipeline.

11. A water saving basin structure for a ship lock according to claim 10, wherein The grating plate is provided with a middle channel (106), a first grating area and a second grating area, the first grating area and the second grating area are arranged on the two sides of the middle channel (106), a plurality of first grating strips (104) are arranged in the first grating area, the adjacent first grating strips (104) are arranged at intervals to form a first grating channel (107), a plurality of second grating strips (105) are arranged in the second grating area, the adjacent first grating strips (104) are arranged at intervals to form a second grating channel (108), the first grating area is arranged on the side of the grating plate close to the inlet and outlet pipeline, the width of the middle channel (106) is greater than the width of the first grating channel (107), the width of the middle channel (106) is greater than the width of the second grating channel (108), and the width of the second grating channel (108) is greater than the width of the first grating channel (107).

12. A water saving basin structure for a ship lock according to claim 10, wherein The transverse wave-absorbing columns (102) are arranged on the two sides of the inlet and outlet (103).

13. A water saving basin structure for a ship lock according to claim 9, wherein The pool (101) is provided with two inlet and outlet (103), and the two inlet and outlet (103) are arranged at intervals.

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