Optimization method and system for water delivery valve

Abstract

The invention relates to the field of hydraulic engineering, in particular to an optimization method and system for a water delivery valve, and the method comprises the steps: constructing a water delivery valve model according to field information which comprises the size information of a ship lock where the water delivery valve is located, the water flow information of a working place of the water delivery valve, and the water level information of the working place of the water delivery valve; in the water filling and draining working conditions of the water delivery valve model, water delivery valve hydraulics and valve hydrodynamics are observed, and the change characteristics of hydraulic parameters in the operation process of the water delivery valve are obtained; the water delivery valve is optimized based on change characteristics of hydraulic parameters in the operation process of the water delivery valve, and dynamic hydrodynamic characteristics generated in the opening and closing process of the valve are observed through the method. Through combination of hydraulic analysis and hydrodynamic analysis, pressure distribution, flow velocity change and hydrodynamic acting force information of the valve under different working conditions can be comprehensively obtained, and therefore the working state of the valve in actual operation can be mastered more accurately.

Description

Technical Field

[0001] The invention relates to the field of water conservancy projects, and in particular to an optimization method and system for a water delivery valve. Background Art

[0002] Water delivery valves are widely used in water conservancy projects, urban water supply and industrial water systems. Their main function is to regulate, control and close the water flow. However, as the scale and complexity of water delivery systems increase, the design and operation of valves face many technical challenges.

[0003] At present, in the Class I inland canals, due to the long flow length of the canals and the large scale of the water transfer valves, the water flow load they bear is also increasing. Especially during the valve filling and draining process, the inertia of the water flow is significant, and the water transfer valves will be subject to complex hydrodynamic loads, which poses a great challenge to the safe operation of the valves. During the opening and closing process, the water transfer valves must not only withstand the pressure of the water flow, but also deal with the impact of dynamic water shock and pulsating pressure. These forces will cause the valves to vibrate, wear and even fail, seriously threatening the service life of the valves and the stability of the water transfer system.

[0004] During the filling and discharging process, the dynamic water impact of the water flow is particularly significant. When the valve is opened or closed quickly, the water flow suddenly accelerates or decelerates, which will produce large pressure fluctuations and flow rate changes. These unstable flow phenomena will lead to increased pressure pulsation, causing rapid changes in pressure in the valve gallery section, gate slot and gate well, and have a greater impact on the valve structure. In addition, the inertial effect of the water flow will also aggravate these phenomena, especially in large-scale valve systems, where the negative effects of fluid inertia are more obvious, which can easily cause fatigue damage to the valve.

[0005] Most of the existing water supply valves are studied based on steady-state analysis of hydraulics, that is, under steady-state flow conditions of the fluid, hydraulic models are used to analyze the pressure distribution, flow velocity and flow rate of the fluid passing through the valve. However, the existing research on water supply valves only analyzes hydraulics. Therefore, the existing analysis methods are insufficient in dealing with the complex hydrodynamic phenomena when the valve is opened and closed, which makes the valve prone to design defects in actual operation, resulting in vibration, wear, and ultimately valve failure. Summary of the invention

[0006] The purpose of the present invention is to overcome the problem that the existing water supply valve research in the prior art only focuses on hydraulics and cannot overcome the problem of wear caused by opening and closing of the valve during actual operation of the water supply valve, and to provide an optimization method and system for the water supply valve.

[0007] In a first aspect, the present invention is a method for optimizing a water delivery valve, characterized in that the method comprises: constructing a water delivery valve model based on field information, wherein the field information comprises size information of a ship lock where the water delivery valve is located, water flow information at a working location of the water delivery valve, and water level information at the working location of the water delivery valve;

[0008] In the filling and discharging conditions of the water delivery valve model, the hydraulics and hydrodynamics of the water delivery valve are observed, wherein the hydraulics of the water delivery valve include the pressure characteristics of the valve gallery section, the pressure characteristics of the valve gate slot and the pressure characteristics of the valve gate well, and the hydrodynamics of the valve include the determination of the valve hydrodynamic load coefficient, the observation of the valve dynamic water force, the observation of the valve opening and closing force and the observation of the valve opening and closing rate;

[0009] Obtain the changing characteristics of hydraulic parameters during the operation of the water delivery valve;

[0010] Based on the changing characteristics of hydraulic parameters during the operation of the water delivery valve, the water delivery valve is optimized.

[0011] The present invention is an optimization method for a water delivery valve. The optimization method first constructs a model of the water delivery valve, then simulates the filling and discharging conditions through the water delivery valve model, and then observes the water delivery valve hydraulics and valve hydrodynamics under the filling and discharging conditions. This method not only considers the hydraulic characteristics of the water delivery valve under steady-state flow conditions, but also observes the dynamic hydrodynamic characteristics generated by the valve during the opening and closing process. By combining hydraulics and hydrodynamics analysis, it is possible to comprehensively obtain information on the pressure distribution, flow rate changes, and dynamic water force of the valve under different working conditions, so as to more accurately grasp the working state of the valve in actual operation; under complex working conditions such as filling and draining, this method can observe the hydrodynamic characteristics of the valve during opening and closing, and at the same time help identify and prevent unstable phenomena in operation, and avoid vibration, wear or structural failure caused by excessive water inertia or dynamic water force; by observing the hydraulics of the water supply valve and the hydrodynamics of the valve, it is possible to obtain the changes in hydraulic parameters under different working conditions, which can provide an accurate basis for the structural design of the valve, ensure the stability of the valve under long-term operation, improve the operating efficiency of the water supply valve, and reduce the subsequent maintenance costs; in addition, this method can ensure that the water supply valve is in a hydrodynamic state. The valve can work stably in a canal (inland river level I) with complex mechanical loads; by observing the pressure characteristics of the valve corridor section, it can help researchers effectively understand the pressure distribution characteristics when water flows through the corridor section, provide basic data for optimizing the structural design of the valve, and prevent excessive local pressure from causing structural failure; by observing the pressure characteristics of the valve gate slot, it can help researchers effectively understand the pressure distribution of the water delivery valve gate slot, so as to optimize the gate slot; by observing the pressure characteristics of the valve gate well, it can clearly understand the pressure changes in the gate well during the opening and closing process of the water delivery valve, as well as the pressure shock at the moment of opening and closing, so that the valve gate well can be optimized to prevent the valve gate well from being subjected to high pressure and causing failure during actual use; by determining the hydrodynamic load coefficient of the valve, the hydrodynamic load on the valve under different working conditions can be accurately grasped. This helps optimize the structural design of the valve, so that it can effectively bear the load under complex hydrodynamic conditions and reduce safety hazards; by observing the dynamic water force of the valve, it can help researchers understand the dynamic water force of the water flow on the water transfer valve. By analyzing the changes in the dynamic water force, it can help reduce the vibration, structural fatigue or wear caused by dynamic water impact during the later valve construction, and improve the durability and service life of the valve; by observing the valve opening and closing force, it can help researchers optimize the water transfer valve and ensure the stability of the water transfer valve; by observing the valve opening and closing rate, it can prevent pressure fluctuations or water hammer caused by opening and closing too fast or too slow. By setting the opening and closing rate reasonably, it can ensure that the valve operates safely and smoothly under various working conditions, reducing the impact and damage to the system.

[0012] As a preferred embodiment of the present invention, the valve gallery section pressure characteristic observation step comprises:

[0013] S1. Obtain the pressure information at the top and bottom of the valve gallery section at different valve openings;

[0014] S2. Analyze the pressure information at the top and bottom of the valve gallery section to obtain the overall pressure change law of the valve gallery section;

[0015] S3, calculating the time average value of the pressure information at the top and bottom of the valve gallery section to obtain the time average pressure information of the valve gallery section;

[0016] S4. Based on the time-averaged pressure information of the valve gallery section, the time-averaged pressure distribution characteristics of the valve gallery section under different valve openings are obtained;

[0017] S5. Statistically analyze the pressure pulsation data of the valve gallery section, evaluate the dynamic response characteristics of the valve gallery section, and obtain the pressure pulsation distribution characteristics of the valve gallery section;

[0018] S6. Generate a valve gallery section pressure characteristic report based on the overall change law of the valve gallery section pressure, the time-averaged pressure distribution characteristics of the valve gallery section, and the pressure pulsation distribution characteristics of the valve gallery section;

[0019] S7. Observe the pressure characteristics of the corridor section based on the corridor section pressure characteristics report.

[0020] By dynamically adjusting the valve opening and observing the pressure of the valve gallery section at each valve opening, researchers can optimize the water transfer valve according to the real-time pressure changes at each opening. Then, by analyzing the real-time pressure changes at each opening, they can provide accurate data support for the optimization of the water transfer valve, thereby providing a theoretical basis for the subsequent construction of water transfer valves. This observation method provides complete pressure characteristic data, allowing designers to optimize valves and related systems based on scientific data to ensure the safe and stable operation of valves under complex working conditions. Accurate pressure monitoring can avoid pressure overload, reduce the risk of equipment wear and fatigue damage, and thus greatly improve the overall operational reliability of the system.

[0021] As a preferred solution of the present invention, the method for observing the time-averaged pressure distribution characteristics of the valve gallery section is as follows: S21, collecting pressure information at the top and bottom of the valve gallery section at different valve openings;

[0022] S22, processing the pressure information at the top and bottom of the valve gallery section to obtain the time-averaged pressure information of the valve gallery section;

[0023] S23, using a spatial interpolation method to process the time-averaged pressure information of the valve gallery section to obtain a time pressure distribution report of the valve gallery section;

[0024] S24. Based on the time pressure distribution report of the valve gallery section, the time-averaged pressure distribution characteristics of the valve gallery section are obtained.

[0025] By obtaining pressure data at various locations in the valve corridor section, calculating the data at a specified opening, and analyzing the calculation results, researchers can clearly and intuitively understand the time-averaged pressure of the valve corridor section, providing data support for the subsequent construction of water supply valves.

[0026] As a preferred embodiment of the present invention, the time-averaged pressure distribution characteristics of the valve gallery section include a high-pressure area and a low-pressure area and a corresponding relationship between the time-averaged pressure and the valve opening.

[0027] As a preferred solution of the present invention, the method for observing the pressure pulsation distribution characteristics of the valve gallery section is as follows: S31, collecting pressure information at the top and bottom of the valve gallery section at different valve openings and different flow rates;

[0028] S32, performing signal processing on the pressure information at the top and bottom of the valve gallery section to obtain pressure pulsation information of the valve gallery section;

[0029] S33, using a spatial interpolation method to process the pressure pulsation information of the valve gallery section to obtain a pressure pulsation distribution report of the valve gallery section;

[0030] S34. Based on the pressure pulsation distribution report of the valve gallery section, obtain the pressure pulsation distribution characteristics of the valve gallery section.

[0031] By obtaining the pressure pulsation signals at various positions of the valve gallery section during the opening and closing process of the valve, and recording the pressure pulsation signals of the valve gallery section at various positions, it is helpful for researchers to fully understand the transient impact of water flow on the valve function during the opening and closing process of the water supply valve, so as to optimize the water supply valve and prevent the water supply valve from being fatigued and damaged by the transient impact of water flow for a long time; at the same time, by observing the pressure pulsation distribution characteristics of the valve gallery section, it can help designers identify and solve the root cause of pressure fluctuations, reduce the occurrence of vibration and noise, and thus improve the operating stability of the entire water supply valve.

[0032] As a preferred solution of the present invention, the pressure pulsation distribution characteristics of the valve gallery section include high pulsation area identification, low pulsation area identification and the corresponding relationship between valve opening and pressure pulsation.

[0033] As a preferred solution of the present invention, the valve gate groove pressure characteristic observation method is:

[0034] Obtain the pressure value of the valve gate slot and the corresponding gate well water level under different valve opening conditions;

[0035] Based on the pressure value of the valve gate slot under different valve opening conditions, a relationship curve between the valve gate slot pressure value and the opening degree is obtained;

[0036] The relationship curve between the valve gate groove pressure value and the opening is analyzed to obtain the valve gate groove pressure characteristics. As a preferred embodiment of the present invention, the valve gate well pressure characteristic observation method is:

[0037] Based on the opening and closing action of the water delivery valve, the pressure change value in the valve gate well is obtained;

[0038] Process the pressure change value in the valve gate well to obtain the time-averaged pressure value and pulsating pressure value in the valve gate well;

[0039] According to the time-averaged pressure value and pulsating pressure value in the valve gate well, the pressure change trend information in the valve gate well is obtained;

[0040] The pressure characteristics of the valve gate well are observed based on the pressure change trend information in the valve gate well.

[0041] As a preferred embodiment of the present invention, the method further includes observing the influence of the valve opening rate on the gallery pressure characteristics, and the specific method is:

[0042] Based on different valve opening rates, the water delivery valve model is tested for filling and discharging water, and the pressure values ​​of the valve gallery section under different valve opening rates are obtained;

[0043] The pressure values ​​of the valve gallery section under different valve opening rates are analyzed to obtain the relationship between the pressure value of the valve gallery section and the valve opening rate;

[0044] Based on the relationship between the pressure value of the valve gallery section and the valve opening rate, the influence of the valve opening rate on the gallery pressure characteristics is observed.

[0045] As a preferred solution of the present invention, the method further includes observing the influence of the valve working water head on the pressure characteristics of the gallery, and the specific method is:

[0046] The water transfer ship valve model is tested according to the preset working conditions, wherein the preset working conditions include the maximum design water head working condition and the minimum navigation water level working condition;

[0047] Obtain the pressure value of the valve gallery section under different water head conditions;

[0048] The pressure values ​​of the valve gallery section under different water head conditions are analyzed to obtain the relationship between the pressure value of the valve gallery section and the working water head;

[0049] Based on the relationship between the pressure value of the valve gallery section and the working water head, the influence of the valve working water head on the gallery pressure characteristics was observed.

[0050] As a preferred embodiment of the present invention, the step of determining the valve hydrodynamic load coefficient comprises:

[0051] Step 1: Obtain the hydraulic power numerical information of the water delivery valve;

[0052] Step 2: Based on the hydraulic numerical information of the water delivery valve, a hydraulic model is constructed;

[0053] Step 3: Generate a solution to determine the hydrodynamic load coefficient under this working condition based on the hydrodynamic model;

[0054] Step 4: Repeat the above three steps to obtain a solution for determining the hydrodynamic load coefficient at various openings of the water delivery valve;

[0055] Step 5: Analyze the hydrodynamic load coefficient determination scheme under various opening conditions of the water delivery valve and determine the optimal scheme;

[0056] Step 6: Determine the valve hydrodynamic load coefficient according to the preferred solution.

[0057] As a preferred embodiment of the present invention, the valve water dynamic force observation method is:

[0058] Obtaining force information on the water delivery valve during the opening and closing process, wherein the force information includes vertical water dynamic force information and friction resistance information;

[0059] Calculate the friction resistance information according to the design specifications to obtain the dynamic water force information in the horizontal direction of the water delivery valve;

[0060] Based on the dynamic water force information of the water delivery valve in the horizontal direction, a valve dynamic water force model is constructed;

[0061] According to the valve dynamic water force model, generate several valve dynamic water force change curves;

[0062] The valve dynamic water force is observed based on the valve dynamic water force variation curve.

[0063] As a preferred embodiment of the present invention, the method for observing the valve opening and closing rate is:

[0064] Preset door opening and closing speed conditions;

[0065] Detect the change curve of the dynamic water force of the water delivery valve under the preset opening and closing speed conditions; analyze the change curve of the valve dynamic water force to obtain the change law of the valve dynamic water force; observe the valve opening and closing rate according to the change law of the valve dynamic water force.

[0066] In a second aspect, the present invention provides a water delivery valve research system for implementing the above-mentioned water delivery valve optimization method, and further comprising a data processing device, a control device, a pulsating pressure sensor, a tension and compression sensor, and a displacement sensor;

[0067] Pulsating pressure sensor: used to collect the pressure at various locations in the valve gallery section;

[0068] Tension and compression sensor: used to collect the pressure during the valve opening and closing process;

[0069] Displacement sensor: used to collect valve opening and closing rates;

[0070] Data processing device: used to obtain information collected by the pulsating pressure sensor, the tension and compression sensor, and the displacement sensor;

[0071] Control device: used to control the valve opening.

[0072] The present invention is a research system for water delivery valves. Through pulsating pressure sensors, tension and pressure sensors and displacement sensors, the system can monitor the pressure of the valve corridor section, the force during the opening and closing process, and the opening and closing rate in real time, ensuring that the operating status of the valve under different working conditions can be fully understood. This real-time monitoring greatly improves the accuracy and timeliness of the data, and avoids the design and operation defects caused by data lag or lack of dynamic observation in traditional methods.

[0073] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0074] 1. The present invention is a method for optimizing a water delivery valve. The optimization method first constructs a model of the water delivery valve, then simulates the filling and discharging conditions through the water delivery valve model, and then observes the hydraulics and hydrodynamics of the water delivery valve under the filling and discharging conditions. This method not only considers the hydraulic characteristics of the water delivery valve under steady-state flow conditions, but also observes the dynamic hydrodynamic characteristics generated by the valve during the opening and closing process. By combining hydraulics and hydrodynamics analysis, it is possible to comprehensively obtain information on the pressure distribution, flow rate changes, and dynamic water force of the valve under different working conditions, so as to more accurately grasp the working state of the valve in actual operation; under complex working conditions such as filling and draining, this method can observe the hydrodynamic characteristics of the valve during opening and closing, and at the same time help identify and prevent unstable phenomena in operation, and avoid vibration, wear or structural failure caused by excessive water inertia or dynamic water force; by observing the hydraulics of the water supply valve and the hydrodynamics of the valve, it is possible to obtain the changes in hydraulic parameters under different working conditions, which can provide an accurate basis for the structural design of the valve, ensure the stability of the valve under long-term operation, improve the operating efficiency of the water supply valve, and reduce the subsequent maintenance costs; in addition, this method can ensure that the water supply valve is in a hydrodynamic state. The valve can work stably in a canal (inland river level I) with complex mechanical loads; by observing the pressure characteristics of the valve corridor section, it can help researchers effectively understand the pressure distribution characteristics when water flows through the corridor section, provide basic data for optimizing the structural design of the valve, and prevent excessive local pressure from causing structural failure; by observing the pressure characteristics of the valve gate slot, it can help researchers effectively understand the pressure distribution of the water delivery valve gate slot, so as to optimize the gate slot; by observing the pressure characteristics of the valve gate well, it can clearly understand the pressure changes in the gate well during the opening and closing process of the water delivery valve, as well as the pressure shock at the moment of opening and closing, so that the valve gate well can be optimized to prevent the valve gate well from being subjected to high pressure and causing failure during actual use; by determining the hydrodynamic load coefficient of the valve, the hydrodynamic load on the valve under different working conditions can be accurately grasped. This helps optimize the structural design of the valve, so that it can effectively bear the load under complex hydrodynamic conditions and reduce safety hazards; by observing the dynamic water force of the valve, it can help researchers understand the dynamic water force of the water flow on the water transfer valve. By analyzing the changes in the dynamic water force, it can help reduce the vibration, structural fatigue or wear caused by dynamic water impact during the later valve construction, and improve the durability and service life of the valve; by observing the valve opening and closing force, it can help researchers optimize the water transfer valve and ensure the stability of the water transfer valve; by observing the valve opening and closing rate, it can prevent pressure fluctuations or water hammer caused by opening and closing too fast or too slow. By setting the opening and closing rate reasonably, it can ensure that the valve operates safely and smoothly under various working conditions, reducing the impact and damage to the system.

[0075] 2. The present invention is a research system for water delivery valves. Through pulsating pressure sensors, tension and pressure sensors and displacement sensors, the system can monitor the pressure of the valve corridor section, the force during the opening and closing process, and the opening and closing rate in real time, ensuring that the operating status of the valve under different working conditions can be fully understood. This real-time monitoring greatly improves the accuracy and timeliness of the data, and avoids the design and operation defects caused by data lag or lack of dynamic observation in traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 is a flow chart of the water delivery valve optimization method of the present invention;

[0077] Figure 2 is a flow chart of the steps for observing the pressure characteristics of the valve gallery section of the present invention;

[0078] Figure 3 It is a flow chart of the method for observing the time-averaged pressure distribution characteristics of the valve gallery section of the present invention;

[0079] Figure 4 It is a flow chart of the method for observing the pressure pulsation distribution characteristics of the valve gallery section. DETAILED DESCRIPTION

[0080] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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 a welding, riveting, bolting, threading, and other commonly used connection methods 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 a connection between the two elements.

[0086] Example 1

[0087] like Figure 1 An optimization method for a water delivery valve is shown, the method comprising:

[0088] A water transfer valve model is constructed based on the on-site information, wherein the on-site information includes the size information of the ship lock where the water transfer valve is located, the water flow information at the working location of the water transfer valve, and the water level information at the working location of the water transfer valve;

[0089] In the water delivery valve model, the water filling and water discharge conditions of the water delivery valve are simulated;

[0090] Under the water filling condition and the water discharge condition of the water delivery valve model, the hydraulics and the valve hydrodynamics of the water delivery valve in the water delivery valve model are observed, wherein the observation includes the hydraulics observation of the water delivery valve and the valve hydrodynamics observation;

[0091] Through the observation of water delivery valve hydraulics and valve hydrodynamics, the variation characteristics of hydraulic parameters of water delivery valves during operation are obtained;

[0092] Optimize the water delivery valve according to the changing characteristics of hydraulic parameters;

[0093] Furthermore, the hydraulic observation of the water delivery valve includes the observation of the pressure characteristics of the valve gallery section, the observation of the time-averaged pressure distribution characteristics of the valve gallery section, the observation of the pressure pulsation distribution characteristics of the valve gallery section, the observation of the pressure characteristics of the valve gate slot, and the observation of the pressure characteristics of the valve gate well;

[0094] Furthermore, the water delivery valve model satisfies the requirements of similarity of valve working section combined boundary, similarity of valve motion, similarity of inertia conversion length of corridors before and after the valve, similarity of water flow resistance before and after the valve, and adjustable system resistance coefficient.

[0095] In one or more embodiments, the construction of the water delivery valve model includes the construction of a scale of the water delivery valve model and the construction of a physical quantity of the water delivery valve model;

[0096] Furthermore, the physical quantity of the water delivery valve model is:

[0097] Time scale of the water delivery valve model:

[0098] Velocity scale for the water delivery valve model:

[0099] Flow rate scale of water delivery valve model:

[0100] Pressure scale of water delivery valve model: λ p =λ L ;

[0101] Force scale of the water delivery valve model:

[0102] Where: t is the time scale of the water delivery valve model; v is the velocity scale of the water delivery valve model; Q is the flow scale of the water delivery valve model; p is the pressure scale of the water delivery valve model; F is the force scale of the water delivery valve model; L This is the length scale of the water delivery valve model.

[0103] In one embodiment or multiple embodiments, the hydraulic observation of the water delivery valve includes the observation of the pressure characteristics of the valve gallery section. The specific observation method is: by real-time collection of the pressure data of the valve gallery section at different valve openings, and generating the pressure change information of the valve gallery section based on the obtained pressure data; analyzing the pressure change information of the valve gallery section, and generating a pressure characteristic report of the valve gallery section according to the analysis results; the R&D personnel observe the pressure characteristics of the valve gallery section based on the pressure characteristic report of the valve gallery section;

[0104] By dynamically adjusting the valve opening and observing the pressure of the valve gallery section at each valve opening, researchers can optimize the water transfer valve according to the real-time pressure changes at each opening. Then, by analyzing the real-time pressure changes at each opening, accurate data support can be provided for the optimization of the water transfer valve, thereby helping to improve the theoretical basis for the subsequent construction of water transfer valves. This observation method provides complete pressure characteristic data, allowing designers to optimize valves and related systems based on scientific data to ensure that valves operate safely and stably under complex working conditions. Accurate pressure monitoring can avoid pressure overload and reduce the risk of equipment wear and fatigue damage, thereby greatly improving the overall operational reliability of the system. The above method can help researchers effectively understand the pressure distribution characteristics of water flowing through the gallery section, provide basic data for optimizing the structural design of the valve, and prevent local excessive pressure from causing structural failure.

[0105] In one or more embodiments, the valve gallery section pressure characteristic observation step includes: S1, obtaining pressure information at the top and bottom of the valve gallery section at different valve openings;

[0106] S2. Analyze the pressure information at the top and bottom of the valve gallery section to obtain the overall pressure change law of the valve gallery section;

[0107] S3, calculating the time average value of the pressure information at the top and bottom of the valve gallery section to obtain the time average pressure information of the valve gallery section;

[0108] S4. Based on the time-averaged pressure information of the valve gallery section, the time-averaged pressure distribution characteristics of the valve gallery section under different valve openings are obtained;

[0109] S5. Statistically analyze the pressure pulsation data of the valve gallery section, evaluate the dynamic response characteristics of the valve gallery section, and obtain the pressure pulsation distribution characteristics of the valve gallery section;

[0110] S6. Generate a valve gallery section pressure characteristic report based on the overall pressure change law of the valve gallery section, the time-averaged pressure distribution characteristics of the valve gallery section, and the pressure pulsation distribution characteristics of the valve gallery section;

[0111] S7. Observe the pressure characteristics of the valve gallery section based on the pressure characteristics report of the gate gallery section;

[0112] By obtaining the pressure data at each position of the valve gallery section, calculating the data at a specified opening, and analyzing the calculation results, researchers can clearly and intuitively understand the time-averaged pressure of the valve gallery section, providing data support for the subsequent construction of water delivery valves, such as Figure 2 shown.

[0113] In one or more embodiments, as a preferred embodiment of the present invention, the method for observing the time-averaged pressure distribution characteristics of the valve gallery section is:

[0114] S21, collecting pressure information at the top and bottom of the valve gallery section at different valve openings;

[0115] S22, processing the pressure information at the top and bottom of the valve gallery section to obtain the time-averaged pressure information of the valve gallery section;

[0116] S23, using a spatial interpolation method to process the time-averaged pressure information of the valve gallery section to obtain a time pressure distribution report of the valve gallery section;

[0117] S24, based on the time pressure distribution report of the valve gallery section, obtaining the time average pressure distribution characteristics of the valve gallery section;

[0118] Furthermore, the time-averaged pressure distribution characteristics of the valve gallery section include a high-pressure area and a low-pressure area and a corresponding relationship between the time-averaged pressure and the valve opening.

[0119] By obtaining pressure data at various locations in the valve corridor section, calculating the data at a specified opening, and analyzing the calculation results, researchers can clearly and intuitively understand the time-averaged pressure of the valve corridor section, providing data support for the subsequent construction of water supply valves.

[0120] In one or more embodiments, the method for observing the pressure pulsation distribution characteristics of the valve gallery section is:

[0121] S31, collecting pressure information at the top and bottom of the valve gallery section at different valve openings and different flow rates;

[0122] S32, performing signal processing on the pressure information at the top and bottom of the valve gallery section to obtain pressure pulsation information of the valve gallery section;

[0123] S33, using a spatial interpolation method to process the pressure pulsation information of the valve gallery section to obtain a pressure pulsation distribution report of the valve gallery section;

[0124] S34, based on the pressure pulsation distribution report of the valve gallery section, obtaining the pressure pulsation distribution characteristics of the valve gallery section;

[0125] Furthermore, the pressure pulsation distribution characteristics of the valve gallery section include high pulsation area identification, low pulsation area identification, and the corresponding relationship between valve opening and pressure pulsation, such as Figure 4 shown.

[0126] By obtaining the pressure pulsation signals at various positions of the valve gallery section during the valve opening and closing process, and recording the pressure pulsation signals of the valve gallery section at various positions, it is helpful for researchers to fully understand the transient impact of water flow on the valve function during the opening and closing process of the water delivery valve, so as to optimize the water delivery valve and prevent the water delivery valve from being fatigued and damaged by the transient impact of water flow for a long time; at the same time, by observing the pressure pulsation distribution characteristics of the valve gallery section, it can help designers identify and solve the root cause of pressure fluctuations, reduce the occurrence of vibration and noise, and thus improve the operation stability of the entire water delivery valve, such as Figure 3 shown.

[0127] In one or more embodiments, the hydraulic observation of the water delivery valve includes observation of the valve gate groove pressure characteristics, and the specific observation method is:

[0128] Obtain the pressure value of the valve gate slot and the corresponding gate well water level under different valve opening conditions;

[0129] Based on the pressure value of the valve gate slot under different valve opening conditions, a relationship curve between the valve gate slot pressure value and the opening degree is obtained;

[0130] Analyze the relationship curve between valve gate slot pressure and opening to obtain valve gate slot pressure characteristics;

[0131] Furthermore, the specific method is as follows: First, the researchers monitor the pressure changes in the valve gate slot in real time according to the opening and closing actions of the water supply valve. Through the pressure sensor installed in the gate slot, the system automatically records the pressure change value in the gate slot during the opening and closing process of the valve. This process ensures the real-time and accuracy of the data; next, the collected pressure change values ​​will be processed. The researchers will calculate the time-averaged pressure value and pulsating pressure value in the valve gate slot. The time-averaged pressure value reflects the average pressure in the gate slot within a certain period of time, while the pulsating pressure value indicates the fluctuation of pressure within this period of time. This step provides basic data for subsequent analysis; then, a more in-depth analysis is conducted on the calculated time-averaged pressure value and pulsating pressure value. The researchers will identify the change trend and distribution characteristics of the pressure value, and use data visualization tools to show the change of pressure over time and the opening and closing state of the valve. The goal of this analysis is to obtain the pressure characteristic distribution information in the valve gate slot to understand the performance of the valve under different working conditions; finally, based on the obtained pressure characteristic distribution information, the researchers further observe the pressure characteristics in the valve gate slot. This observation process not only helps researchers confirm the performance of the valve in actual operation, but also provides an important reference for valve design optimization and performance improvement.

[0132] In one or more embodiments, the hydraulic observation of the water delivery valve includes the observation of the pressure characteristics of the valve gate well. The specific observation method is: based on the opening and closing action of the water delivery valve, the pressure change value in the valve gate well is obtained; the pressure change value in the valve gate well is processed to obtain the time-averaged pressure value and the pulsating pressure value in the valve gate well;

[0133] According to the time-averaged pressure value and pulsating pressure value in the valve gate well, the pressure change trend information in the valve gate well is obtained;

[0134] The pressure characteristics of the valve gate well are observed based on the pressure change trend information in the valve gate well.

[0135] In one or more embodiments, the valve hydrodynamic observation includes determining the valve hydrodynamic load coefficient, and the specific method is as follows: Step 1: obtaining the water delivery valve hydrodynamic numerical information;

[0136] Step 2: Based on the hydraulic numerical information of the water delivery valve, a hydraulic model is constructed;

[0137] Step 3: Generate a solution to determine the hydrodynamic load coefficient under this working condition based on the hydrodynamic model;

[0138] Step 4: Repeat the above three steps to obtain a solution for determining the hydrodynamic load coefficient at various openings of the water delivery valve;

[0139] Step 5: Analyze the hydrodynamic load coefficient determination scheme under various opening conditions of the water delivery valve and determine the optimal scheme;

[0140] Step 6: Determine the valve hydrodynamic load coefficient according to the preferred solution.

[0141] In one or more embodiments, the valve hydrodynamic observation includes valve dynamic water force observation, and the specific method is: obtaining force information on the water delivery valve during the opening and closing process, wherein the force information includes vertical direction dynamic water force information and friction resistance information;

[0142] Calculate the friction resistance information according to the design specifications to obtain the dynamic water force information in the horizontal direction of the water delivery valve;

[0143] Based on the dynamic water force information of the water delivery valve in the horizontal direction, a valve dynamic water force model is constructed;

[0144] According to the valve dynamic water force model, generate several valve dynamic water force change curves;

[0145] The valve dynamic water force is observed based on the valve dynamic water force variation curve.

[0146] Furthermore, the valve hydrodynamic force model is as follows:

[0147] μF x =T zs +T zd ;

[0148] F=F y +μF x ;

[0149] Where: F is the valve water dynamic force; F y is the vertical hydrodynamic force; μF x is the horizontal hydrodynamic force; T zs T is the water-stop friction resistance of the plane valve; zd It is the rolling support friction resistance of the flat valve.

[0150] In one or more embodiments, the valve hydrodynamic observation includes valve opening and closing rate observation, and the specific method is: presetting the opening and closing speed conditions;

[0151] Detect the change curve of the dynamic water force of the water delivery valve under the preset opening and closing speed conditions; analyze the change curve of the valve dynamic water force to obtain the change law of the valve dynamic water force; observe the valve opening and closing rate according to the change law of the valve dynamic water force.

[0152] The present invention is an optimization method for a water delivery valve. The optimization method first constructs a model of the water delivery valve, then simulates the filling and discharging conditions through the water delivery valve model, and then observes the water delivery valve hydraulics and valve hydrodynamics under the filling and discharging conditions. This method not only considers the hydraulic characteristics of the water delivery valve under steady-state flow conditions, but also observes the dynamic hydrodynamic characteristics generated by the valve during the opening and closing process. By combining hydraulics and hydrodynamics analysis, the pressure distribution, flow rate changes and dynamic water force information of the valve under different working conditions can be fully obtained, so as to more accurately grasp the working state of the valve in actual operation; under complex working conditions such as filling and draining, this method can observe the hydrodynamic characteristics of the valve during opening and closing, and at the same time help to identify and prevent unstable phenomena in operation, and avoid vibration, wear or structural failure caused by water inertia or excessive dynamic water force; by observing the hydraulics of the water transfer valve and the hydrodynamics of the valve, the changes in hydraulic parameters under different working conditions can be obtained, which can provide an accurate basis for the structural design of the valve, ensure the stability of the valve under long-term operation, improve the operating efficiency of the water transfer valve and reduce the subsequent maintenance cost; in addition, this method can ensure the stable operation of the water transfer valve in canals (inland river level I) with complex hydrodynamic loads.

[0153] Example 2

[0154] A water delivery valve research system, the system is used to execute a water delivery valve optimization method in Example 1, the system includes a data processing device, a control device, a pulsating pressure sensor, a tension and compression sensor, and a displacement sensor;

[0155] Pulsating pressure sensor: used to collect the pressure at various locations in the valve gallery section;

[0156] Tension and compression sensor: used to collect the pressure during the valve opening and closing process;

[0157] Displacement sensor: used to collect valve opening and closing rates;

[0158] Data processing device: used to obtain information collected by the pulsating pressure sensor, the tension and compression sensor, and the displacement sensor;

[0159] Control device: used to control the valve opening.

[0160] The present invention is a research system for water delivery valves. Through pulsating pressure sensors, tension and pressure sensors and displacement sensors, the system can monitor the pressure of the valve corridor section, the force during the opening and closing process, and the opening and closing rate in real time, ensuring that the operating status of the valve under different working conditions can be fully understood. This real-time monitoring greatly improves the accuracy and timeliness of the data, and avoids the design and operation defects caused by data lag or lack of dynamic observation in traditional methods.

[0161] 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 a water delivery valve, characterized in that: Methods include: A water transfer valve model is constructed based on the on-site information, wherein the on-site information includes the size information of the ship lock where the water transfer valve is located, the water flow information at the working location of the water transfer valve, and the water level information at the working location of the water transfer valve; In the filling and discharging conditions of the water delivery valve model, the hydraulics and hydrodynamics of the water delivery valve are observed, wherein the hydraulics of the water delivery valve include the pressure characteristics of the valve gallery section, the pressure characteristics of the valve gate slot and the pressure characteristics of the valve gate well, and the hydrodynamics of the valve include the determination of the valve hydrodynamic load coefficient, the observation of the valve dynamic water force, the observation of the valve opening and closing force and the observation of the valve opening and closing rate; Obtain the changing characteristics of hydraulic parameters during the operation of the water delivery valve; Based on the changing characteristics of hydraulic parameters during the operation of the water delivery valve, the water delivery valve is optimized.

2. The optimization method of a water delivery valve according to claim 1, characterized in that: The valve gallery section pressure characteristic observation step comprises: S1. Obtain the pressure information at the top and bottom of the valve gallery section at different valve openings; S2. Analyze the pressure information at the top and bottom of the valve gallery section to obtain the overall pressure change law of the valve gallery section; S3, calculating the time average value of the pressure information at the top and bottom of the valve gallery section to obtain the time average pressure information of the valve gallery section; S4. Based on the time-averaged pressure information of the valve gallery section, the time-averaged pressure distribution characteristics of the valve gallery section under different valve openings are obtained; S5. Statistically analyze the pressure pulsation data of the valve gallery section, evaluate the dynamic response characteristics of the valve gallery section, and obtain the pressure pulsation distribution characteristics of the valve gallery section; S6. Generate a valve gallery section pressure characteristic report based on the overall change law of the valve gallery section pressure, the time-averaged pressure distribution characteristics of the valve gallery section, and the pressure pulsation distribution characteristics of the valve gallery section; S7. Observe the pressure characteristics of the corridor section based on the corridor section pressure characteristics report.

3. The optimization method of a water delivery valve according to claim 2, characterized in that: The method for observing the time-averaged pressure distribution characteristics of the valve gallery section is: S21, collecting pressure information at the top and bottom of the valve gallery section at different valve openings; S22, processing the pressure information at the top and bottom of the valve gallery section to obtain the time-averaged pressure information of the valve gallery section; S23, using a spatial interpolation method to process the time-averaged pressure information of the valve gallery section to obtain a time pressure distribution report of the valve gallery section; S24. Based on the time pressure distribution report of the valve gallery section, the time-averaged pressure distribution characteristics of the valve gallery section are obtained.

4. The optimization method of a water delivery valve according to claim 3, characterized in that: The time-averaged pressure distribution characteristics of the valve gallery section include a high-pressure area and a low-pressure area, and a corresponding relationship between the time-averaged pressure and the valve opening.

5. The optimization method of a water delivery valve according to claim 2, characterized in that: The method for observing the pressure pulsation distribution characteristics of the valve gallery section is: S31, collecting pressure information at the top and bottom of the valve gallery section at different valve openings and different flow rates; S32, performing signal processing on the pressure information at the top and bottom of the valve gallery section to obtain pressure pulsation information of the valve gallery section; S33, using a spatial interpolation method to process the pressure pulsation information of the valve gallery section to obtain a pressure pulsation distribution report of the valve gallery section; S34. Based on the pressure pulsation distribution report of the valve gallery section, obtain the pressure pulsation distribution characteristics of the valve gallery section.

6. The method for optimizing a water delivery valve according to claim 5, characterized in that: The pressure pulsation distribution characteristics of the valve gallery section include high pulsation area identification, low pulsation area identification and the corresponding relationship between valve opening and pressure pulsation.

7. The method for optimizing a water delivery valve according to claim 1, characterized in that: The valve slot pressure characteristic observation method is as follows: Obtain the pressure value of the valve gate slot and the corresponding gate well water level under different valve opening conditions; Based on the pressure value of the valve gate slot under different valve opening conditions, a relationship curve between the valve gate slot pressure value and the opening degree is obtained; The relationship curve between valve gate slot pressure value and opening degree is analyzed to obtain the valve gate slot pressure characteristics.

8. The method for optimizing a water delivery valve according to claim 1, characterized in that: The valve well pressure characteristic observation method is: Based on the opening and closing action of the water delivery valve, the pressure change value in the valve gate well is obtained; Process the pressure change value in the valve gate well to obtain the time-averaged pressure value and pulsating pressure value in the valve gate well; According to the time-averaged pressure value and pulsating pressure value in the valve gate well, the pressure change trend information in the valve gate well is obtained; The pressure characteristics of the valve gate well are observed based on the pressure change trend information in the valve gate well.

9. The method for optimizing a water delivery valve according to claim 1, characterized in that: The method also includes observing the effect of valve opening rate on the pressure characteristics of the gallery, and the specific method is as follows: Based on different valve opening rates, the water delivery valve model is tested for filling and discharging water, and the pressure values ​​of the valve gallery section under different valve opening rates are obtained; The pressure values ​​of the valve gallery section under different valve opening rates are analyzed to obtain the relationship between the pressure value of the valve gallery section and the valve opening rate; Based on the relationship between the pressure value of the valve gallery section and the valve opening rate, the influence of the valve opening rate on the gallery pressure characteristics is observed.

10. The method for optimizing a water delivery valve according to claim 1, characterized in that: The method also includes observing the influence of valve working head on the pressure characteristics of the gallery. The specific method is: The water transfer ship valve model is tested according to the preset working conditions, wherein the preset working conditions include the maximum design water head working condition and the minimum navigation water level working condition; Obtain the pressure value of the valve gallery section under different water head conditions; The pressure values ​​of the valve gallery section under different water head conditions are analyzed to obtain the relationship between the pressure value of the valve gallery section and the working water head; Based on the relationship between the pressure value of the valve gallery section and the working water head, the influence of the valve working water head on the gallery pressure characteristics was observed.

11. The method for optimizing a water delivery valve according to claim 1, characterized in that: The step of determining the valve hydrodynamic load coefficient comprises: Step 1: Obtain the hydraulic power numerical information of the water delivery valve; Step 2: Based on the hydraulic numerical information of the water delivery valve, a hydraulic model is constructed; Step 3: Generate a solution to determine the hydrodynamic load coefficient under this working condition based on the hydrodynamic model; Step 4: Repeat the above three steps to obtain a solution for determining the hydrodynamic load coefficient at various openings of the water delivery valve; Step 5: Analyze the hydrodynamic load coefficient determination scheme under various opening conditions of the water delivery valve and determine the optimal scheme; Step 6: Determine the valve hydrodynamic load coefficient according to the preferred solution.

12. The method for optimizing a water delivery valve according to claim 1, characterized in that: The valve water dynamic force observation method is: Obtaining force information on the water delivery valve during the opening and closing process, wherein the force information includes vertical water dynamic force information and friction resistance information; Calculate the friction resistance information according to the design specifications to obtain the dynamic water force information in the horizontal direction of the water delivery valve; Based on the dynamic water force information of the water delivery valve in the horizontal direction, a valve dynamic water force model is constructed; According to the valve dynamic water force model, generate several valve dynamic water force change curves; The valve dynamic water force is observed based on the valve dynamic water force variation curve.

13. The method for optimizing a water delivery valve according to claim 1, characterized in that: The method for observing the valve opening and closing rate is: Preset door opening and closing speed conditions; Detect the change curve of the dynamic water force of the water delivery valve under the preset opening and closing speed conditions; analyze the change curve of the valve dynamic water force to obtain the change law of the valve dynamic water force; observe the valve opening and closing rate according to the change law of the valve dynamic water force.

14. A research system for a water delivery valve, characterized in that: A method for optimizing a water delivery valve according to any one of claims 1 to 13, further comprising a data processing device, a control device, a pulsating pressure sensor, a tension and compression sensor, and a displacement sensor; Pulsating pressure sensor: used to collect the pressure at various locations in the valve gallery section; Tension and compression sensor: used to collect the pressure during the valve opening and closing process; Displacement sensor: used to collect valve opening and closing rates; Data processing device: used to obtain information collected by the pulsating pressure sensor, the tension and compression sensor, and the displacement sensor; Control device: used to control the valve opening.

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