Optimization method for water inlet and outlet of ship lock water-saving pool and water-saving pool structure

Abstract

The invention relates to the field of ship lock water-saving pool optimization, in particular to an optimization method for a water inlet and a water outlet of a ship lock water-saving pool and a water-saving pool structure.The optimization method for the water inlet and the water outlet of the ship lock water-saving pool comprises the steps that a ship lock water-saving pool model is constructed, and grating plates and transverse wave absorbing stand columns are arranged in a water-saving pool of the ship lock water-saving pool model; the method comprises the following steps: performing hydraulic characteristic test on a ship lock water-saving pool model, determining an optimal grating plate arrangement mode of the ship lock water-saving pool model, determining an optimal transverse wave-absorbing stand column mounting position of the ship lock water-saving pool model, and determining an optimal initial water depth of the ship lock water-saving pool model, so as to realize rapid design of the ship lock water delivery system water-saving pool; according to the water-saving pool structure, water surface fluctuation in the water-saving pool is restrained through the grating plates and the transverse wave-absorbing stand columns, the arrangement mode of the grating plates and the transverse wave-absorbing stand columns is determined through an optimization method of a water inlet and a water outlet of the ship lock water-saving pool, the liquid level in the water-saving pool is kept stable, and it is guaranteed that 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 invention relates to the field of optimization of a ship lock water saving pool, and in particular to an optimization method for a water inlet and outlet of a ship lock water saving pool and a water saving pool structure. Background Art

[0002] A ship lock is a device that enables ships to overcome water level differences to navigate. The ship lock uses the principle of a communicating vessel. After the ship enters the lock chamber, water is filled or drained into the lock chamber, so that the water level in the lock is flush with the water area to be navigated, so that the ship can enter the low water area from the high water level water area, or the ship can enter the high water level water area from the low water level water area; conventional ship locks need to draw water from the high water level water area when lifting or lowering ships, which will affect the liquid level in the high water level water area during long-term use; for geographical environments where it is difficult to replenish water, a water-saving tank is usually set up in the ship lock. When filling the lock chamber with water, the water in the water-saving tank is used to inject water into the ship lock to increase the liquid level in the lock chamber; when draining the lock chamber, the liquid level in the lock chamber is lowered by pumping water from the lock chamber into the water-saving tank; so that when the ship lock is in operation, only a small amount of water needs to be pumped from the high water level water area, and the purpose of water saving is achieved by reusing water resources; currently, ship locks with greater water saving needs use a three-level water-saving tank to save water.

[0003] However, during the operation of the three water-saving tanks of the three-level water-saving tanks, the discharge and injection of water from the water-saving tanks will cause the liquid level in the water-saving tanks to fluctuate, causing the liquid level sensing device in the water-saving tanks to misjudge the liquid level height, resulting in a low water-saving rate of the water-saving tanks; especially when the ship lock discharges water from the water-saving tank to the lock chamber, since all water transfer valves adopt a rapid opening and closing operation mode, when the planned uniform speed of 1.0min rapid opening operation is carried out, a relatively obvious surface vortex will be formed at the inlet and outlet of the water-saving tank near the maximum water transfer flow rate; when the ship lock chamber injects water into the water-saving tank, since all water transfer valves adopt a rapid opening and closing operation mode, when the planned uniform speed of 1.0min rapid opening operation is carried out, a relatively obvious water flow congestion will appear at the outlet of the water-saving tank when water is injected into the water-saving tank. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiency in the prior art that the liquid level in the water-saving tank will fluctuate greatly during water discharge and water filling, thereby affecting the detection accuracy of the liquid level sensing device, and to provide an optimization method for the inlet and outlet of the water-saving tank of a ship lock and a water-saving tank structure.

[0005] In a first aspect, the present invention provides a method for optimizing the water inlet and outlet of a ship lock water saving tank, comprising the following steps: S1: Construct a ship lock water saving pool model: Construct a ship lock water saving pool model based on the ship lock water transfer system water saving pool; The ship lock water saving pool model is constructed in proportion to the water saving pool of the ship lock water delivery system. The ship lock water saving pool model can reflect the operation of the water saving pool of the ship lock water delivery system, so that the designer can adjust the design scheme of the water saving pool of the ship lock water delivery system by adjusting the ship lock water saving pool model; S2: Setting grid plates and transverse wave-breaking columns: Setting grid plates at the water inlet and outlet of the water-saving pool of the ship lock water-saving pool model, and setting transverse wave-breaking columns in the water-saving pool of the ship lock water-saving pool model; The grid plate and the transverse wave-breaking column are both used to reduce the liquid level fluctuation of the water-saving tank, so that the sensing result of the liquid level sensing device is more accurate, thereby improving the water-saving performance of the water-saving tank; S3: Adjust the grid plate and the transverse wave-absorbing column: adjust the setting method of the grid plate and the installation position of the transverse wave-absorbing column; By adjusting the setting mode of the grid plate and the installation position of the transverse wave-breaking column in the water-saving tank, the fluctuation of the liquid level in the water-saving tank can be changed; S4: Verify the water flow pattern of the ship lock water saving pool model: Conduct hydraulic characteristic tests on the ship lock water saving pool model, and obtain and analyze water flow pattern data; Through the hydraulic characteristics test of the lock water saving tank model, the water flow pattern data was analyzed to determine the water level fluctuation of the water saving tank after adjusting the grid plate and the transverse wave-breaking columns. S5: Determine the optimization scheme of the ship lock water saving pool model: repeat steps S3-S4 until the water flow state data of the ship lock water saving pool model meets the requirements; determine the optimal grid plate setting method of the ship lock water saving pool model, determine the optimal transverse wave-absorbing column installation position of the ship lock water saving pool model, and determine the optimal initial water depth of the ship lock water saving pool model; The adjustment method of the grid plate and the transverse wave-breaking column is determined by the results of the water flow pattern analysis until the water flow pattern data of the lock water-saving pool model meets the requirements; thereby determining the optimal grid plate setting method of the lock water-saving pool model, the optimal transverse wave-breaking column installation position of the lock water-saving pool model, and the optimal initial water depth of the lock water-saving pool model; S6: Verify the flow pattern of the water-saving tank of the ship lock water transfer system: convert the optimal grating plate setting method of the water-saving tank model, the optimal transverse wave-breaking column installation method of the water-saving tank model and the optimal initial water depth of the water-saving tank model in S5 into the optimal grating plate setting method of the water-saving tank of the ship lock water transfer system, the optimal transverse wave-breaking column installation method of the water-saving tank of the ship lock water transfer system and the optimal initial water depth of the water-saving tank of the ship lock water transfer system, and verify the flow pattern of the water-saving tank of the ship lock water transfer system; The optimal grating setting method of the water-saving pool model, the optimal transverse wave-breaking column installation method of the water-saving pool model and the optimal initial water depth of the water-saving pool model are converted into the optimal grating setting method, the optimal transverse wave-breaking column installation method and the optimal initial water depth of the water-saving pool of the ship lock water transfer system; the water-saving pool of the ship lock water transfer system is operated in an actual operating mode to verify whether the obtained optimization plan meets the requirements.

[0006] The invention discloses an optimization method for the water inlet and outlet of a ship lock water saving tank. By constructing a ship lock water saving tank model, designers can adjust and test the ship lock water saving tank model to quickly determine the optimization scheme for the water saving tank of the ship lock water delivery system, thereby accelerating the design speed of the ship lock; a grid plate and a transverse wave-breaking column are arranged in the water saving tank, the grid plate is covered on the water outlet to divert the liquid injected from the water outlet to the water saving tank, thereby reducing the water surface accumulation, and the grid plate can prevent the occurrence of vortices in the water saving tank when the water is discharged from the water saving tank; the transverse wave-breaking column reduces the water surface by hindering the water flow. The water surface fluctuations make the liquid level in the water-saving pool more stable; by adjusting the grating plates and the transverse wave-breaking columns, the water surface fluctuations in the water-saving pool are within a controllable range, so that the liquid level sensing device can obtain more accurate liquid level height data; the hydraulic characteristics test of the ship lock water-saving pool model is carried out to simulate the water filling and discharge process of the water-saving pool of the ship lock water delivery system, so that the setting method of the grating plates and the installation position of the transverse wave-breaking columns are more in line with the use requirements of the water-saving pool of the ship lock water delivery system; through repeated adjustments and verifications, the optimal grating plate setting method of the ship lock water-saving pool model is determined, and the optimal The optimal installation position of the transverse wave-absorbing column is determined to determine the optimal initial water depth of the water-saving pool model of the ship lock; the optimal grating plate setting method of the water-saving pool model, the optimal transverse wave-absorbing column installation method of the water-saving pool model and the optimal initial water depth of the water-saving pool model are proportionally converted into the optimal grating plate setting method of the water-saving pool of the ship lock water supply system, the optimal transverse wave-absorbing column installation method of the water-saving pool of the ship lock water supply system and the optimal initial water depth of the water-saving pool of the ship lock water supply system; the optimal grating plate setting method of the water-saving pool of the ship lock water supply system, the optimal transverse wave-absorbing column installation method of the water-saving pool of the ship lock water supply system The optimal initial water depth of the water-saving tank of the ship lock water conveyance system is applied to the ship lock water conveyance system, so that the water-saving tank of the ship lock water conveyance system operates in working condition, and verifies whether the obtained optimization scheme meets the requirements; by adopting an optimization method for the inlet and outlet of the ship lock water-saving tank of the present invention, the water-saving tank can be optimized quickly, thereby saving the design time of the ship lock and improving the design efficiency of the ship lock; the designed water-saving tank of the ship lock water conveyance system has good liquid level stability, so that the liquid level sensing device can more accurately determine the liquid level height of the water-saving tank, thereby improving the water saving rate of the water-saving tank of the ship lock water conveyance system.

[0007] Preferably, in S3, the method for adjusting the arrangement of the grid plate includes: adjusting the spacing between adjacent bars on the grid plate.

[0008] The grating plate is provided with a number of mutually parallel grating bars. The size of the grating channel on the grating plate can be controlled by controlling the spacing between the grating bars; the shielding area of ​​the grating plate on the water inlet and outlet can be changed by controlling the width of the grating bars, so that the grating plate can optimize the water flow at the water inlet and outlet, so that the liquid level of the water-saving tank remains stable when filling or draining water, thereby improving the water saving rate of the water-saving tank.

[0009] Preferably, in S3, the method for adjusting the installation position of the transverse wave-breaking column includes: adjusting the distance between the transverse wave-breaking column and the water inlet and outlet.

[0010] By adjusting the distance between the transverse wave-breaking columns and the water inlet and outlet, the transverse wave-breaking columns can better reduce the fluctuation of the water surface; by making the distance between the transverse wave-breaking columns and the water inlet and outlet appropriate, the wave-breaking capacity of the transverse wave-breaking columns is maximized, and the water surface of the water-saving pool is stabilized.

[0011] Preferably, the transverse wave-breaking column comprises a plurality of columns, and adjacent columns are arranged at intervals; the method for adjusting the installation position of the transverse wave-breaking column further comprises: adjusting the interval between adjacent columns.

[0012] The transverse wave-breaking columns are composed of a number of columns arranged at intervals. The columns are inserted below the liquid level of the water-saving tank. When the liquid level fluctuates, the water flow hits the columns to decelerate, thereby stabilizing the liquid level of the water-saving tank. By adjusting the spacing between adjacent columns, the blocking area of ​​the transverse wave-breaking columns to the water flow is adjusted, so that the liquid level of the water-saving tank can be converted from a fluctuating state to a stable state.

[0013] Preferably, in S4, the method for acquiring the water flow state data is: select two points of the specified liquid level height of the water-saving tank as the first measuring point and the second measuring point, the first measuring point and the second measuring point are respectively located on both sides of the lateral wave-breaking column; when the water level of the water-saving tank reaches the specified liquid level height, measure the water surface fluctuation data of the first measuring point and the second measuring point respectively.

[0014] The first measuring point and the second measuring point can reflect the liquid level fluctuation of the water-saving tank at the same liquid level height.

[0015] Preferably, in S5, steps S3-S4 are repeated until the water surface fluctuation data at the first measuring point and the second measuring point of the ship lock water saving pool model meet the requirements.

[0016] By ensuring that the water surface fluctuation data at the first measuring point and the second measuring point meet the requirements, the water surface fluctuation in the water-saving tank is ensured to be within a controllable range, thereby improving the water saving rate of the water-saving tank.

[0017] Preferably, the designated liquid level height includes the liquid level height of the water-saving tank when the water-saving tank model is at maximum water head and the liquid level height of the water-saving tank when the water-saving tank model is at minimum navigable water level.

[0018] By measuring the fluctuations of the highest and lowest water levels in the water-saving tank, operators can make adjustments to the grating plates and transverse wave-breaking columns more in line with actual usage needs and ensure the water surface stability of the water-saving tank.

[0019] Preferably, in S5, the method for determining the optimal initial water depth of the water-saving tank model includes: injecting water into the water-saving tank through the water inlet and outlet at different initial water depths, and determining the optimal initial water depth of the water-saving tank model by comparing the flow state of the water in the water-saving tank when the water-saving tank reaches a specified liquid level at different initial water depths.

[0020] By comparing the liquid level fluctuations during water injection under different initial water depths, the designed depth of the water-saving tank can be made more reasonable and the water surface fluctuations of the water-saving tank can be reduced.

[0021] In a second aspect, the present invention provides a water-saving tank structure for a ship lock, comprising a water tank, a grating plate and transverse wave-breaking columns, wherein a water inlet and an outlet are arranged at the bottom of the water tank, the grating plate is provided on the upper cover of the water inlet and the outlet, and transverse wave-breaking columns are arranged in the water tank, and the transverse wave-breaking columns are arranged at intervals from the water inlet and the outlet; the arrangement of the grating plate and the installation position of the transverse wave-breaking columns are determined by the above-mentioned optimization method for the water inlet and outlet of a ship lock water-saving tank.

[0022] The present invention provides a water-saving tank structure for a ship lock. Grille plates are arranged at the water inlet and outlet of the tank. The grille plates can divert water flow. When water is injected into the water-saving tank through the water inlet and outlet, the water flow diverted by the grille plates can slow down the water level rise, thereby reducing the water surface fluctuation in the water-saving tank. When water is discharged from the water-saving tank through the water inlet and outlet, the grille plates can avoid the occurrence of vortices in the water-saving tank, thereby keeping the liquid level in the water-saving tank stable. Transverse wave-breaking columns are arranged in the tank. The water flow in the water-saving tank is blocked by the transverse wave-breaking columns, thereby further keeping the liquid level in the water-saving tank stable, thereby improving the detection accuracy of the liquid level sensing device and improving the water-saving rate of the water-saving tank.

[0023] Preferably, the water inlet and outlet comprises two interconnected water inlet and outlet chambers, the top of the water inlet and outlet chambers is provided with an opening, and the grille plate cover is arranged on the opening; each of the water inlet and outlet chambers is respectively connected to the water inlet and outlet pipes.

[0024] By placing a grid plate cover on the opening, the water flow passing through the opening is dispersed, thereby ensuring a stable liquid level in the water-saving pool.

[0025] Preferably, the grille plate has a middle channel, a first grille area and a second grille area, the first grille area and the second grille area are respectively arranged on both sides of the middle channel, a plurality of first grille bars are arranged in the first grille area, and adjacent first grille bars are arranged at intervals to form a first grille channel; a plurality of second grille bars are arranged in the second grille area, and adjacent first grille bars are arranged at intervals to form a second grille channel; the first grille area is located on a side of the grille plate close to the inlet and outlet water pipes, the width of the middle channel is greater than the width of the first grille channel, the width of the middle channel is greater than the width of the second grille channel, and the width of the second grille channel is greater than the width of the first grille channel.

[0026] The grid plate is arranged according to the flow state of water in the water inlet and outlet chambers. Since the water flow speed near the inlet and outlet pipes in the water inlet and outlet chambers is faster, the adjacent first grid bars located 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 rate after hitting the wall of the water inlet and outlet chambers, and the second grid bars located in the second grid area block and divert the faster flow of water, thereby slowing down the flow speed of the water flow; the water flow in the middle channel has a slower flow speed, so that the water flow can be quickly discharged from the fast middle channel to the water inlet and outlet chambers.

[0027] Preferably, the transverse wave-breaking columns are respectively provided on both sides of the water inlet and outlet.

[0028] The stabilizing effect of the transverse wave-breaking columns on the liquid level of the water-saving pool is improved by increasing the blocking area.

[0029] Preferably, two water inlets and outlets are provided in the water pool, and the two water inlets and outlets are spaced apart.

[0030] By arranging two water inlets and outlets in the water pool, water is diverted when entering or discharging the water-saving pool, thereby slowing down the fluctuation of the liquid level.

[0031] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides an optimization method for the water inlet and outlet of a ship lock water saving tank. By constructing a ship lock water saving tank model, designers can adjust and test the ship lock water saving tank model to quickly determine the optimization plan for the water saving tank of the ship lock water delivery system, thereby accelerating the design speed of the ship lock; a grid plate and a transverse wave-breaking column are arranged in the water saving tank. The grid plate is covered on the water outlet to divert the liquid injected from the water outlet to the water saving tank, thereby reducing the water surface. The grid plate can prevent vortices from appearing in the water saving tank when the water is discharged from the water saving tank; the transverse wave-breaking column reduces the water surface by hindering the flow of water. Reduce water surface fluctuations and make the liquid level in the water-saving pool more stable; adjust the grid plate and the transverse wave-breaking columns to keep the water surface fluctuations in the water-saving pool within a controllable range, so that the liquid level sensing device can obtain more accurate liquid level height data; conduct hydraulic characteristic tests on the water-saving pool model of the ship lock, simulate the water filling and discharge process of the water-saving pool of the ship lock water delivery system, and make the setting method of the grid plate and the installation position of the transverse wave-breaking columns more in line with the use requirements of the water-saving pool of the ship lock water delivery system; determine the optimal grid plate setting method of the ship lock water-saving pool model through repeated adjustments and verifications, and determine the optimal water-saving pool model of the ship lock. The optimal installation position of the transverse wave-absorbing column is determined to determine the optimal initial water depth of the water-saving pool model of the ship lock; the optimal grating plate setting method of the water-saving pool model, the optimal transverse wave-absorbing column installation method of the water-saving pool model and the optimal initial water depth of the water-saving pool model are proportionally converted into the optimal grating plate setting method of the water-saving pool of the ship lock water supply system, the optimal transverse wave-absorbing column installation method of the water-saving pool of the ship lock water supply system and the optimal initial water depth of the water-saving pool of the ship lock water supply system; the optimal grating plate setting method of the water-saving pool of the ship lock water supply system, the optimal transverse wave-absorbing column installation method of the water-saving pool of the ship lock water supply system The optimal initial water depth of the water-saving tank of the ship lock water delivery system and the installation mode are applied to the ship lock water delivery system, so that the water-saving tank of the ship lock water delivery system operates in working condition, and it is verified whether the obtained optimization scheme meets the requirements; by adopting the optimization method of the water inlet and outlet of the ship lock water-saving tank of the present invention, the water-saving tank 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 tank of the ship lock water delivery system has good liquid level stability, so that the liquid level sensing device can more accurately determine the liquid level height of the water-saving tank, thereby improving the water saving rate of the water-saving tank of the ship lock water delivery system; 2. A water-saving tank structure of a ship lock of the present invention is characterized in that a grid plate is arranged at the water inlet and outlet of the water tank, and the grid plate can divert water flow. When water is injected into the water-saving tank through the water inlet and outlet, the water flow diverted by the grid plate can slow down the situation of water surface accumulation, thereby reducing the water surface fluctuation in the water-saving tank; when water is discharged from the water-saving tank through the water inlet and outlet, the grid plate can prevent vortex from appearing in the water-saving tank, thereby keeping the liquid level in the water-saving tank stable; a transverse wave-breaking column is arranged in the water tank, and the water flow in the water-saving tank is blocked by the transverse wave-breaking column, thereby further keeping the liquid level in the water-saving tank stable, thereby improving the detection accuracy of the liquid level sensing device and improving the water-saving rate of the water-saving tank; BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic flow chart of a method for optimizing the water inlet and outlet of a water-saving tank of a ship lock according to the present invention; Figure 2 This is a schematic diagram of the grid structure of the improvement scheme 1 of the embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the grid structure of the improvement scheme 2 of the embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the arrangement of the transverse wave-absorbing columns of the improvement scheme 3 of the embodiment 1 of the present invention; Figure 5 The water level fluctuation table of the first-level water-saving tank in Example 1 of the present invention; Figure 6 The water level fluctuation table of the second-level water-saving tank in Example 1 of the present invention; Figure 7 It is a structural schematic diagram of a water-saving tank structure of a ship lock according to the present invention; Figure 8 This is a schematic structural diagram of a grid plate according to Embodiment 2 of the present invention; Fig. 9 This is a structural schematic diagram of a water-saving tank structure of a ship lock in Example 2.

[0033] Markings in the figure: 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, 101-water pool, 102-lateral wave-breaking column, 103-water inlet and outlet, 1031-water inlet and outlet chamber, 104-first grid bar, 105-second grid bar, 106-middle channel, 107-first grid channel, 108-second grid channel. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0035] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, 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 position relationship, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. 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 invention.

[0037] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0038] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0039] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0040] Example 1 like Figure 1-Figure 6 As shown, a method for optimizing the water inlet and outlet of a ship lock water saving pool comprises the following steps S1: Construct a ship lock water saving pool model: Construct a ship lock water saving pool model based on the ship lock water transfer system water saving pool; S2: Setting grid plates and transverse wave-breaking columns: Setting grid plates at the water inlet and outlet of the water-saving pool of the ship lock water-saving pool model, and setting transverse wave-breaking columns in the water-saving pool of the ship lock water-saving pool model; S3: Adjust the grid plate and the transverse wave-absorbing column: adjust the setting method of the grid plate and the installation position of the transverse wave-absorbing column; S4: Verify the water flow pattern of the ship lock water saving pool model: Conduct hydraulic characteristic tests on the ship lock water saving pool model, and obtain and analyze water flow pattern data; S5: Determine the optimization scheme of the ship lock water saving pool model: repeat steps S3-S4 until the water flow state data of the ship lock water saving pool model meets the requirements; determine the optimal grid plate setting method of the ship lock water saving pool model, determine the optimal transverse wave-absorbing column installation position of the ship lock water saving pool model, and determine the optimal initial water depth of the ship lock water saving pool model; S6: Verify the flow pattern of the water-saving tank of the ship lock water transfer system: convert the optimal grating plate setting method, the optimal transverse wave-breaking column installation method and the optimal initial water depth of the water-saving tank model in S5 into the optimal grating plate setting method, the optimal transverse wave-breaking column installation method and the optimal initial water depth of the water-saving tank of the ship lock water transfer system to verify the flow pattern of the water-saving tank of the ship lock water transfer system.

[0041] By constructing a water-saving tank model for a ship lock, designers can adjust and test the water-saving tank model to quickly determine the optimization plan for the water-saving tank of the ship lock water delivery system, thereby speeding up the design of the ship lock; grille plates and transverse wave-breaking columns are set in the water-saving tank. The grille plates are covered on the water outlet to divert the liquid injected into the water-saving tank from the outlet, thereby reducing the water level. The grille plates can prevent vortices from appearing in the water-saving tank when the water is discharged from the water-saving tank; the transverse wave-breaking columns reduce water surface fluctuations by hindering water flow, making the liquid level in the water-saving tank more stable; By adjusting the grating plates and transverse wave-absorbing columns, 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 height data; the hydraulic characteristics test of the ship lock water-saving pool model is carried out to simulate the water filling and discharge process of the water-saving pool of the ship lock water delivery system, so that the setting method of the grating plates and the installation position of the transverse wave-absorbing columns are more in line with the use requirements of the water-saving pool of the ship lock water delivery system; through repeated adjustments and verifications, the optimal grating plate setting method of the ship lock water-saving pool model and the optimal transverse wave-absorbing column installation position of the ship lock water-saving pool model are determined. The optimal initial water depth of the water-saving pool model of the ship lock is determined; the optimal grating plate setting method of the water-saving pool model, the optimal transverse wave-absorbing column installation method of the water-saving pool model and the optimal initial water depth of the water-saving pool model are proportionally converted into the optimal grating plate setting method of the water-saving pool of the ship lock water delivery system, the optimal transverse wave-absorbing column installation method of the water-saving pool of the ship lock water delivery system and the optimal initial water depth of the water-saving pool of the ship lock water delivery system; the optimal grating plate setting method of the water-saving pool of the ship lock water delivery system, the optimal transverse wave-absorbing column installation method of the water-saving pool of the ship lock water delivery system and the ship lock are proportionally converted into the optimal initial water depth of the water-saving pool of the ship lock water delivery system The optimal initial water depth of the water-saving tank of the water delivery system is applied to the ship lock water delivery system, so that the water-saving tank of the ship lock water delivery system operates in working condition, and verifies whether the obtained optimization scheme meets the requirements; by adopting an optimization method for the water inlet and outlet of the ship lock water-saving tank of the present invention, the water-saving tank 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 delivery system water-saving tank has good liquid level stability, so that the liquid level sensing device can more accurately determine the liquid level height of the water-saving tank, thereby improving the water saving rate of the ship lock water delivery system water-saving tank.

[0042] In one or several embodiments, in S3, the method for adjusting the setting mode of the grid plate is: adjusting the spacing between adjacent bars on the grid plate; the bars on the grid plate are arranged at intervals, and adjacent bars are parallel to each other. By adjusting the spacing between the bars on the grid plate, the size of the grid channel on the grid plate can be adjusted, thereby adjusting the position of water flowing through the grid plate, thereby reducing the liquid level fluctuation of the water-saving tank; in some embodiments, by adjusting the width of the bars, the blocking area of ​​the bars to the water flow is changed, and the flow rate of the water flow is changed; the grid channel can supply water to flow through the grid plate.

[0043] In one or several embodiments, in S3, the method for adjusting the installation position of the transverse wave-breaking column includes: adjusting the distance between the transverse wave-breaking column and the water inlet and outlet; the two ends of the transverse wave-breaking column are respectively connected to the two opposite side walls of the water-saving tank, so that the transverse wave-breaking column can block the flow of water in the water-saving tank, thereby making the liquid level stability of the water-saving tank on the side of the transverse wave-breaking column away from the water inlet and outlet better.

[0044] In an optional embodiment, the transverse wave-breaking column includes a plurality of columns, and adjacent columns are spaced apart; the method for adjusting the installation position of the transverse wave-breaking column also includes: adjusting the spacing between adjacent columns; by arranging the plurality of columns at intervals, the columns can block the water flow, thereby reducing the water surface fluctuations, and the water flow can flow through the gaps between adjacent columns.

[0045] In one or several embodiments, in S4, the method for acquiring water flow state data is: select two points of the specified liquid level height of the water-saving tank as the first measuring point and the second measuring point, and the first measuring point and the second measuring point are respectively located on both sides of the transverse wave-breaking column; when the water level of the water-saving tank reaches the specified liquid level height, measure the water surface fluctuation data of the first measuring point and the second measuring point respectively; the first measuring point and the second measuring point respectively measure the water surface fluctuation conditions located on both sides of the transverse wave-breaking column, which can provide data support for the adjustment of the wave-breaking column, so that designers can adjust the wave-breaking column more quickly.

[0046] In an optional implementation, in S5, steps S3-S4 are repeated until the water surface fluctuation data at the first measuring point and the second measuring point of the ship lock water saving tank model meet the requirements; the water surface fluctuation data at the first measuring point and the second measuring point meet the requirements, thereby ensuring that the water surface of the water saving tank remains stable.

[0047] In an optional embodiment, the specified liquid level height includes the liquid level height of the water-saving tank model at maximum head and the liquid level height of the water-saving tank model at the lowest navigable water level; by measuring the highest liquid level and the lowest liquid level of the water-saving tank, it is convenient for operators to adjust the setting mode of the entire grid plate and the installation position of the transverse wave-breaking columns in the water-saving tank.

[0048] In one or several embodiments, in S5, the method for determining the optimal initial water depth of the water-saving tank model includes: injecting water into the water-saving tank through the water inlet and outlet at different initial water depths, and determining the optimal initial water depth of the water-saving tank model by comparing the water flow state of the water-saving tank when the water-saving tank reaches a specified liquid level at different initial water depths; the depth of the water-saving tank has an impact on the liquid level fluctuation when the water-saving tank is filled with water, and by determining the optimal depth of the water-saving tank, the liquid level fluctuation of the water-saving tank is reduced.

[0049] Specifically, the following three schemes are used to improve the flow pattern of the water inlet and outlet of the three-level water-saving pool model: Improvement plan 1 is to add grilles at the inlet and outlet of each water tank in the ship lock. The grille type is selected Figure 2 .

[0050] Improvement plan 2 is to add grilles at the inlet and outlet of each water tank in the ship lock. The grille type is selected Figure 3 .

[0051] Improvement plan 3, that is, on the basis of improvement plan 2, add transverse wave-breaking columns inside the water-saving pool, such as Figure 4 As shown, the water surface fluctuation inside the water-saving tank can be further reduced, and the monitoring accuracy of the water level in the water-saving tank can be improved when the valve is opened and closed.

[0052] After taking the above measures, the test observed that when the ship lock was filled with water, the vortex phenomenon of the water flow at the water inlet of the water-saving tank was significantly weakened. When "Improvement Plan 2" or "Improvement Plan 3" was adopted, only short-term surface vortices occasionally existed at the water inlet of the water-saving tank, and the overall water flow conditions were significantly improved; when the ship lock was discharged, the local water surface elevation behind the water outlet of the water-saving tank was improved, but there was still a large water surface elevation under "Improvement Plan 1". After adopting "Improvement Plan 2", the water surface elevation at the outlet was better controlled, and the overall water surface fluctuation in the water-saving tank was weakened; and after adopting "Improvement Plan 3", the water surface fluctuation in the outer area of ​​the wave-breaking column was further improved, with a better effect.

[0053] In order to quantitatively analyze the water surface fluctuation in the water-saving tank 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 were arranged in the first-level water-saving tank and the second-level water-saving tank; 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-level water-saving tank, 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-level water-saving tank; under the combined working conditions of maximum head and minimum navigation water level, when the water delivery valves of the ship lock adopt the operation mode of tv=tv1=1.0min uniform opening and the connecting valve adopts the operation mode of tv2=0.5min uniform closing, the water level fluctuation indicators in the water-saving tank under different arrangement schemes are shown in the figure. Figure 5 and Figure 6 , where a positive value represents the instantaneous water level being higher than the average water level of the water-saving tank at the same moment, and a negative value represents the instantaneous water level being lower than the average water level of the water-saving tank at the same moment.

[0054] From the table we can see that: (1) Under the original scheme (without adding grids and wave-breaking columns), the overall water surface fluctuation in the water-saving tank is relatively large. Under the maximum head condition, the maximum fluctuation drop value measured in the model in the first-stage water-saving tank is 0.50 m, and the maximum damming height is 0.36 m; the maximum fluctuation drop value measured in the model in the second-stage water-saving tank is 0.84 m, and the maximum damming height is 0.79 m.

[0055] (2) After adopting improvement plan 1, the water surface fluctuation in the water-saving tank was improved. Under the maximum head condition, the maximum fluctuation drop of the model in the first-stage water-saving tank was 0.37 m, and the maximum damming was 0.11 m. The maximum fluctuation drop of the model in the second-stage water-saving tank was 0.61 m, and the maximum damming was 0.71 m.

[0056] (3) After adopting improvement plan 2, the water surface fluctuation in the water-saving tank was significantly improved. Under the maximum head condition, the maximum fluctuation drop value measured in the model in the first-level water-saving tank was 0.30m, and the maximum damming height was 0.11m; the maximum fluctuation drop value measured in the model in the second-level water-saving tank was 0.51m, and the maximum damming height was 0.49m.

[0057] (4) After adopting improvement plan 3, the overall water surface fluctuation in the water-saving tank was further improved. Under the maximum head condition, the maximum fluctuation drop value measured by the model in the first-level water-saving tank was 0.29m, and the maximum damming was 0.08m; the maximum fluctuation drop value measured by the model in the second-level water-saving tank was 0.26m, and the maximum damming was 0.51m. Under the lowest navigable water level combination condition, due to the shallow initial water depth in the water-saving tank, the water level fluctuation increased compared with the maximum head condition. The maximum fluctuation drop value measured by the model in the first-level water-saving tank was 0.49m, and the maximum damming was 0.25m; the maximum fluctuation drop value measured by the model in the second-level water-saving tank was 0.66m, and the maximum damming was 1.43m (near the outlet area).

[0058] (5) In summary, Improvement Scheme 3 has a better effect on the liquid level stability of the water-saving tank. At the same time, considering that the inlets and outlets of the two water transfer corridors in the second-level water-saving tank are concentrated in the middle of the tank room, the water surface fluctuation caused is significantly greater than that of the first-level water-saving tank. It is recommended to adopt a dispersed layout similar to the first-level water-saving tank when conditions permit. In addition, the experiment found that the initial water depth of the water-saving tank has a greater impact on the water surface fluctuation. When the water depth is shallow, the water surface fluctuation caused by the water transfer process increases significantly. It is recommended to appropriately increase the initial water depth of the water-saving tank when conditions permit.

[0059] The ship lock is equipped with three-level water-saving tanks, which are all arranged on one side of the lock chamber. The first and third-level water-saving tanks are arranged overlappingly, and the second-level water-saving tank is arranged separately. The ratio of the water area of ​​each water-saving tank to the water area of ​​the lock chamber is 1.40:1; the first-level water-saving tank adapts to water level changes of 49.15 ~ 57.76m; the second-level water-saving tank adapts to water level changes of 44.10 ~ 51.88 m; the third-level water-saving tank adapts to water level changes of 39.05 ~ 46.00 m.

[0060] Example 2 like Figure 7-Figure 9 As shown, a water-saving tank structure of a ship lock comprises a water tank 101, a grating plate and a transverse wave-breaking column 102. A water inlet and outlet 103 is provided at the bottom of the water tank 101. The grating plate is provided on the upper cover of the water inlet and outlet 103. A transverse wave-breaking column 102 is provided in the water tank 101. The transverse wave-breaking column 102 is spaced apart from the water inlet and outlet 103. The arrangement of the grating plate and the installation position of the transverse wave-breaking column 102 are determined by the optimization method of the water inlet and outlet of a ship lock water-saving tank in Example 1.

[0061] By arranging grille plates at the water inlet and outlet 103 of the water pool 101, the grille plates can divert water flow. When water is injected into the water-saving pool through the water inlet and outlet 103, the water flow diverted by the grille plates can slow down the water level rise, thereby reducing the water surface fluctuation in the water-saving pool; when water is discharged from the water-saving pool through the water inlet and outlet 103, the grille plates can avoid the occurrence of vortices in the water-saving pool, thereby keeping the liquid level in the water-saving pool stable; transverse wave-breaking columns 102 are arranged in the water pool 101, and the water flow in the water-saving pool is blocked by the transverse wave-breaking columns 102, thereby further keeping the liquid level in 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.

[0062] In one or several embodiments, the water inlet and outlet 103 includes two interconnected water inlet and outlet chambers 1031, which are arranged side by side. An opening is provided at the top of the water inlet and outlet chambers 1031, and water is injected into and discharged from the water-saving tank through the opening. A grille cover is provided on the opening to divert the water flow passing through the opening; each water inlet and outlet chamber 1031 is respectively connected to an inlet and outlet pipe.

[0063] In an optional embodiment, the grille plate has a middle channel, a first grille area and a second grille area. The middle channel is a through channel arranged in the middle of the grille plate. The first grille area and the second grille area are respectively arranged on both sides of the middle channel. A plurality of first grille bars 104 are arranged in the first grille area. The first grille bars 104 are parallel to each other. Adjacent first grille bars 104 are arranged at intervals to form a first grille channel 107. Water can enter or be discharged from the inlet and outlet water chamber 1031 through the first grille channel 107. A plurality of second grille bars 105 are arranged in the second grille area. The second grille bars 105 are parallel to each other. Adjacent first grille bars 104 are arranged at intervals to form a second grille channel 108. Water can enter or be discharged from the inlet and outlet water chamber 1031 through the second grille channel 108. The first grille area is located at one side of the grille plate close to the inlet and outlet pipes. On the side, the width of the middle channel is greater than the width of the first grille channel 107, the width of the middle channel is greater than the width of the second grille channel 108, and the width of the second grille channel 108 is greater than the width of the first grille channel 107; the grille plate is set according to the flow state of water in the inlet and outlet water chamber 1031. Since the water flow speed in the inlet and outlet water chamber 1031 close to the inlet and outlet water pipe is faster, the adjacent first grille bars located in the first grille area have a shorter interval, and the blocking effect on the water flow is better; the water flow has a faster flow rate after hitting the wall of the inlet and outlet water chamber 1031, and the second grille bars located in the second grille area block and divert the faster flow of water, thereby slowing down the flow speed of the water flow; the water flow in the middle channel flows slower, so that the water flow can be quickly discharged from the fast middle channel to the inlet and outlet water chamber 1031.

[0064] In an optional implementation, different second grid bars 105 have different specifications.

[0065] In an optional embodiment, transverse wave-breaking columns 102 are respectively provided on both sides of the water inlet and outlet 103; the stabilizing effect of the transverse wave-breaking columns 102 on the liquid level of the water-saving pool is improved by increasing the blocking area; in some embodiments, two transverse wave-breaking columns 102 are provided on one side of the water inlet and outlet 103, and two transverse wave-breaking columns 102 are provided on the other side; the transverse wave-breaking columns 102 are composed of a plurality of columns arranged in a line, and there is a gap between adjacent columns.

[0066] In one or more embodiments, two water inlets and outlets 103 are provided in the water pool 101, and the two water inlets and outlets 103 are arranged at intervals; by providing multiple water inlets and outlets 103, the liquid level fluctuation in the water-saving pool is mitigated.

[0067] Specifically, the grating plate has six first bars 104 and three second bars 105. The grating plate can be simultaneously covered on two water inlet and outlet chambers 1031. The width of the first bar 104 is 500 mm, and the spacing between adjacent first bars 104 increases from the edge to the middle of the grating plate by 40 mm, 60 mm, 80 mm, 100 mm, and 120 mm respectively; the widths of the three second bars 105 are 900 mm, 1500 mm, and 900 mm respectively, and the spacing between adjacent second bars 105 is 1500 mm and 1000 mm, and the second bar 105 is 3600 mm away from the opening edge of the water inlet and outlet chamber 1031; a middle channel is formed between the first bar 104 and the second bar 105, the spacing between the first bar 104 and the second bar 105 is 4800 mm, and the lengths of the first bar 104 and the second bar 105 are both 26000 mm.

[0068] In one or more embodiments, Fig. 9 As shown, the water pool 101 is provided with two water inlets and outlets 103 , which are dispersedly arranged at the bottom of the water pool 101 , and transverse wave-breaking columns 102 are respectively arranged on both sides of each water inlet and outlet 103 .

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for optimizing the water inlet and outlet of a ship lock water saving tank, characterized in that: The following steps are included S1: Construct a ship lock water saving pool model: Construct a ship lock water saving pool model based on the ship lock water transfer system water saving pool; S2: Setting grid plates and transverse wave-breaking columns: Setting grid plates at the water inlet and outlet of the water-saving pool of the ship lock water-saving pool model, and setting transverse wave-breaking columns in the water-saving pool of the ship lock water-saving pool model; S3: Adjust the grid plate and the transverse wave-absorbing column: adjust the setting method of the grid plate and the installation position of the transverse wave-absorbing column; S4: Verify the water flow pattern of the ship lock water saving pool model: Conduct hydraulic characteristic tests on the ship lock water saving pool model, and obtain and analyze water flow pattern data; S5: Determine the optimization scheme of the ship lock water saving pool model: repeat steps S3-S4 until the water flow state data of the ship lock water saving pool model meets the requirements; determine the optimal grid plate setting method of the ship lock water saving pool model, determine the optimal transverse wave-absorbing column installation position of the ship lock water saving pool model, and determine the optimal initial water depth of the ship lock water saving pool model; S6: Verify the flow pattern of the water-saving tank of the ship lock water transfer system: convert the optimal grating plate setting method, the optimal transverse wave-breaking column installation method and the optimal initial water depth of the water-saving tank model in S5 into the optimal grating plate setting method, the optimal transverse wave-breaking column installation method and the optimal initial water depth of the water-saving tank of the ship lock water transfer system to verify the flow pattern of the water-saving tank of the ship lock water transfer system.

2. The method for optimizing the water inlet and outlet of a ship lock water saving tank according to claim 1, characterized in that: In S3, the method for adjusting the arrangement of the grid plate includes: adjusting the spacing between adjacent bars on the grid plate.

3. The method for optimizing the water inlet and outlet of a ship lock water saving tank according to claim 1, characterized in that: In S3, the method for adjusting the installation position of the transverse wave-breaking column includes: adjusting the distance between the transverse wave-breaking column and the water inlet and outlet.

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

5. The method for optimizing the water inlet and outlet of a ship lock water saving tank according to claim 1, characterized in that: In S4, the method for acquiring the water flow state data is: select two points of the specified liquid level height of the water-saving tank as the first measuring point and the second measuring point, and the first measuring point and the second measuring point are respectively located on both sides of the lateral wave-breaking column; when the water level of the water-saving tank reaches the specified liquid level height, measure the water surface fluctuation data of the first measuring point and the second measuring point respectively.

6. The method for optimizing the water inlet and outlet of a ship lock water saving tank according to claim 5, characterized in that: In S5, steps S3-S4 are repeated until the water surface fluctuation data at the first measuring point and the second measuring 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 tank according to claim 5, characterized in that: The specified liquid level height includes the liquid level height of the water-saving tank model at the maximum water head and the liquid level height of the water-saving tank model at the lowest navigable water level.

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

9. A water-saving tank structure for a ship lock, characterized in that: The invention comprises a water pool (101), a grating plate and a transverse wave-breaking column (102); a water inlet and outlet (103) is provided at the bottom of the water pool (101); the water inlet and outlet (103) is covered with the grating plate; a transverse wave-breaking column (102) is provided in the water pool (101); the transverse wave-breaking column (102) is spaced apart from the water inlet and outlet (103); the arrangement of the grating plate and the installation position of the transverse wave-breaking column (102) are determined by the method for optimizing the water inlet and outlet of a ship lock water-saving pool according to any one of claims 1 to 8.

10. A water-saving tank structure for a ship lock according to claim 9, characterized in that: The water inlet and outlet (103) comprises two interconnected water inlet and outlet chambers (1031), the top of each water inlet and outlet chamber (1031) is provided with an opening, and the grille plate cover is arranged on the opening; each water inlet and outlet chamber (1031) is respectively connected to an inlet and outlet water pipe.

11. A water-saving tank structure for a ship lock according to claim 10, characterized in that: The grille plate comprises a middle channel (106), a first grille area and a second grille area, the first grille area and the second grille area are respectively arranged on both sides of the middle channel (106), a plurality of first grille bars (104) are arranged in the first grille area, and adjacent first grille bars (104) are arranged at intervals to form a first grille channel (107); a plurality of second grille bars (105) are arranged in the second grille area, and adjacent first grille bars (104) are arranged at intervals to form a second grille channel (108); the first grille area is located on a side of the grille plate close to the inlet and outlet water pipes, the width of the middle channel (106) is greater than the width of the first grille channel (107), the width of the middle channel (106) is greater than the width of the second grille channel (108), and the width of the second grille channel (108) is greater than the width of the first grille channel (107).

12. The water-saving tank structure of a ship lock according to claim 10, characterized in that: The transverse wave-breaking columns (102) are respectively provided on both sides of the water inlet and outlet (103).

13. The water-saving tank structure of a ship lock according to claim 9, characterized in that: Two water inlets and outlets (103) are provided in the water pool (101), and the two water inlets and outlets (103) are arranged at intervals.

Images