A 3D design method and system for the overall layout of a water conveyance system in a pumped storage power station

Abstract

The present invention relates to the field of tunnels and underground engineering, and particularly to a three-dimensional design method and system for the overall layout of a water conveyance system of a pumped storage power station. The method includes the following steps: initially determining the economic pipe diameter; constructing a three-dimensional model of the water inlet and outlet and arranging them in a plane; initially selecting the positions of the main buildings and the parameters of the key parts in the horizontal and longitudinal views, establishing the two-dimensional and three-dimensional linkage relationship of the horizontal and longitudinal sections, and constructing a three-dimensional model of the water conveyance line; calculating the TW value of the surge chamber of the hydropower station, calculating the head loss under the power generation condition and the head loss under the pumping condition; constructing a three-dimensional model of the gate shaft and establishing the two-dimensional and three-dimensional linkage relationship with the horizontal and longitudinal sections; constructing a three-dimensional model of the tail gate chamber and establishing the two-dimensional and three-dimensional linkage relationship with the horizontal and longitudinal sections; obtaining the lining parameters and constructing a three-dimensional model of the lining; calculating the engineering quantity. The present invention can realize the three-dimensional forward design of the overall layout of the water conveyance system of the pumped storage power station and the rapid generation of the three-dimensional models of its main buildings, improving the design quality and efficiency.

Description

Technical Field

[0001] The present invention relates to the field of tunnels and underground engineering, and in particular to a three-dimensional design method and system for the overall layout of a water conveyance system of a pumped storage power station. Background Art

[0002] To meet the current demand for improving the design quality and efficiency of the overall layout of the water conveyance and power generation system, the three-dimensional forward design and parametric modeling technology for the overall layout of the water conveyance and power generation system have also developed rapidly. By establishing the three-dimensional forward design process and parametric modeling of the overall layout of the water conveyance and power generation system, the design efficiency can be effectively improved, and the layout design of the water conveyance line and its relative relationship with each building can be more intuitively reflected, and the design quality of the overall layout of the water conveyance and power generation system can be visually analyzed.

[0003] Currently, in the design of the overall layout of the water conveyance system, due to the lack of functions such as hydraulic structure calculation and head loss calculation in various three-dimensional design software, there are generally disadvantages such as low visualization degree, poor integration with three-dimensional software, and cumbersome repetitive work, making it difficult to achieve parametric modeling with two-dimensional and three-dimensional linkage based on in-depth data driving.

[0004] The three-dimensional design of the traditional overall layout of the water conveyance and power generation system mostly basically meets the layout requirements of the water conveyance system of the preliminary project, and its accuracy and depth cannot reach the three-specialty and feasibility study review. It realizes local driving parameters but has a relatively limited application range and lacks flexibility, and can only meet relatively typical line layout forms and cannot meet the accuracy requirements of subsequent designs. Summary of the Invention

[0005] In order to solve the problems of data driving and difficulty in two-dimensional and three-dimensional linkage of the horizontal and vertical profiles in the three-dimensional design of the overall layout of the water conveyance system, the present invention provides a three-dimensional design method and system for the overall layout of a water conveyance system of a pumped storage power station.

[0006] The present invention provides a three-dimensional design method for the overall layout of a water conveyance system of a pumped storage power station, adopting the following technical solutions:

[0007] A three-dimensional design method for the overall layout of a water conveyance system of a pumped storage power station includes the following steps:

[0008] S1, calculating the key structural parameters of the water conveyance tunnel, and calculating the tunnel diameter and flow velocity of each section of the water conveyance tunnel according to the key structural parameters;

[0009] S2, determining the structure shape and key shape parameters of the inlet and outlet, and constructing a three-dimensional model and a plane layout of the inlet and outlet;

[0010] S3, according to the drawn plan view of the water conveyance line, initially selecting the proposed positions of the main buildings and the key part parameters in the horizontal and vertical views, establishing the two-dimensional and three-dimensional linkage relationship of the horizontal and vertical profiles, and constructing a three-dimensional model of the water conveyance line;

[0011] S4. Calculate the TW value of the surge tank of the hydropower station, and calculate the head loss under the power generation condition and the head loss under the pumping condition; construct a three-dimensional model of the surge tank according to the head loss under the power generation condition and the head loss under the pumping condition.

[0012] S5. Construct a three-dimensional model of the gate shaft according to the gate shaft body structure and the first main parameter, and establish a two-dimensional and three-dimensional linkage relationship with the horizontal and vertical profiles; construct a three-dimensional model of the tail gate chamber according to the tail gate chamber body structure and the second main parameter, and establish a two-dimensional and three-dimensional linkage relationship with the horizontal and vertical profiles.

[0013] S6. Obtain the lining parameters, and construct a three-dimensional lining model of the water conveyance tunnel according to the lining parameters; calculate the engineering quantity according to the three-dimensional model of the water conveyance line, as well as the three-dimensional models of the gate shaft, the tail gate chamber and the lining.

[0014] In a specific feasible implementation, step S1 includes the following steps:

[0015] Extract relevant parameters from the database;

[0016] Calculate key parameters according to the relevant parameters;

[0017] Calculate the key structural parameters of each water conveyance tunnel according to the key parameters, and further calculate the tunnel diameter and flow velocity of each section of the water conveyance tunnel.

[0018] In a specific feasible implementation, the relevant parameters include the reservoir layout, power station kinetic energy parameters, and water turbine parameters of the previous specialty;

[0019] The key parameters include the water conveyance tunnel segmentation form, lining form and economic flow velocity;

[0020] The key structural parameters include the economic pipe diameter and cross-sectional area of the water conveyance tunnel.

[0021] In a specific feasible implementation, step S2 includes the following steps:

[0022] According to the layout form of the upper reservoir and the topographic and geological conditions, draw up the body structure of the upper reservoir;

[0023] According to the layout form of the lower reservoir and the topographic and geological conditions, draw up the body structure of the lower reservoir;

[0024] By obtaining the input body structures of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet, as well as the body parameters, and according to the key body parameters, check and adjust the body parameters of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet, and generate individual three-dimensional models of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet.

[0025] Obtain the positions of the 3D models of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet arranged on the water conveyance line plan. Define the relative positions when there are multiple inlet / outlets according to the layout parameters of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet, and complete the 3D modeling and planar layout of all the upper reservoir inlet / outlets and the lower reservoir inlet / outlets.

[0026] In a specific feasible implementation, the shape parameters include the number of orifices, the flow velocity through the grating, the actual orifice height, the actual orifice width, and the area ratio of the trash rack.

[0027] The key shape parameters include the height-width ratio of the trash rack and the Froude number.

[0028] In a specific feasible implementation, step S3 includes the following steps:

[0029] According to the water conveyance line plan and based on the 3D geological model, preliminarily select the proposed positions of the main buildings and the key part parameters in the horizontal and vertical profiles, establish the two-dimensional and three-dimensional linkage relationship of the horizontal and vertical profiles, and then construct the 3D model of the water conveyance line according to the engineering empirical values.

[0030] In a specific feasible implementation, step S4 includes the following steps:

[0031] Calculate the TW values of the three parts of the diversion regulation, tailwater regulation, and diversion to tailwater regulation, and determine whether to set a surge shaft according to the calculation results;

[0032] According to the basic parameters of each section of the water conveyance line in the 3D model of the water conveyance line and the determination result of whether to set a surge shaft, calculate the head loss under the power generation condition and the head loss under the pumping condition;

[0033] According to the head loss under the power generation condition and the head loss under the pumping condition, calculate the Thoma stable section, the maximum surge, and the minimum surge;

[0034] According to the Thoma stable section, the maximum surge, and the minimum surge, calculate the main parameters of the surge shaft shape structure and construct the 3D model of the surge shaft;

[0035] Associate the 3D model of the surge shaft with the attribute information in the horizontal and vertical profiles, and dynamically update the position of the 3D model of the surge shaft in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism.

[0036] In a specific feasible implementation, step S5 includes the following steps:

[0037] Obtain the gate well shape structure and the first main parameters, and construct the 3D model of the gate well;

[0038] Associate the 3D model of the gate well with the attribute information in the horizontal and vertical profiles, and dynamically update the position of the 3D model of the gate well in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism;

[0039] Obtain the body shape structure and the second main parameter of the tail gate chamber, and construct a three-dimensional model of the tail gate chamber;

[0040] Associate the three-dimensional model of the tail gate chamber with the attribute information in the horizontal and vertical sections, and dynamically update the position of the three-dimensional model of the tail gate chamber in the two-dimensional horizontal and vertical sections in combination with the real-time monitoring mechanism.

[0041] In a specific feasible implementation, the attribute information includes the stake number and the elevation of key points in the horizontal and vertical sections.

[0042] The present invention provides a three-dimensional design system for the overall layout of the water conveyance system of a pumped storage power station, and adopts the following technical solutions:

[0043] A three-dimensional design system for the overall layout of the water conveyance system of a pumped storage power station, which is used to execute the three-dimensional design method for the overall layout of the water conveyance system of the pumped storage power station, includes:

[0044] The initial economic pipe diameter module extracts relevant parameters from the database, calculates key parameters according to the relevant parameters, calculates the key structural parameters of each water conveyance tunnel according to the key parameters, and further calculates the hole diameter and flow velocity of each section of the water conveyance tunnel;

[0045] The initial intake and outlet module determines the structure shape and key shape parameters of the intake and outlet, and constructs a three-dimensional model and a plane layout of the intake and outlet;

[0046] The water conveyance line design module, according to the drawn water conveyance line plan, preliminarily selects the positions of main buildings and key part parameters in the horizontal and vertical views, establishes the two-dimensional and three-dimensional linkage relationship of the horizontal and vertical sections, and performs the three-dimensional generation of the water conveyance line;

[0047] The surge tank judgment and shape determination module calculates the TW value of the surge tank of the hydropower station, calculates the head loss under the power generation condition and the head loss under the pumping condition; constructs a three-dimensional model of the surge tank according to the head loss under the power generation condition and the head loss under the pumping condition;

[0048] The water conveyance structure shape determination module constructs a three-dimensional model of the gate shaft according to the gate shaft body shape structure and the first main parameter, and establishes the two-dimensional and three-dimensional linkage relationship with the horizontal and vertical sections; constructs a three-dimensional model of the tail gate chamber according to the tail gate chamber body shape structure and the second main parameter, and establishes the two-dimensional and three-dimensional linkage relationship with the horizontal and vertical sections;

[0049] The module for determining lining parameters and calculating the project quantity obtains the lining parameters, and constructs a three-dimensional lining model of the water conveyance tunnel according to the lining parameters; calculates the project quantity according to the lining model.

[0050] In summary, the present invention has the following beneficial effects:

[0051] The three-dimensional design method for the overall layout of the water conveyance system of a pumped-storage power station improves the design efficiency and accuracy of the three-dimensional design of the overall layout of the water conveyance system of a pumped-storage power station. At the same time, combined with calculation functions such as hydraulic structure calculation and head loss calculation, it realizes the overall design of structural checking and three-dimensional models, reduces the design difficulty of designers while ensuring the design quality, and realizes parameterized one-key modeling of two-dimensional and three-dimensional linkage based on depth data driving, making the three-dimensional design of the overall layout of the water conveyance system of a pumped-storage power station meet the accuracy requirements of subsequent designs. Brief Description of the Drawings

[0052] Figure 1 is the flow chart of the three-dimensional design method for the overall layout of the water conveyance system of a pumped-storage power station. Detailed Implementation Modes

[0053] The following further elaborates on the present invention Figure 1 in conjunction with the accompanying drawings.

[0054] In the present invention, the data for the three-dimensional design of the overall layout of the water conveyance system of a pumped-storage power station is stored in a SQL Server database, and the modeling uses the AutoCAD Civil 3D software of Autodesk as the computer-aided design (CAD) platform.

[0055] Referring to Figure 1 , the three-dimensional design method for the overall layout of the water conveyance system of a pumped-storage power station includes the following steps:

[0056] S1. Calculate the key structural parameters of the water conveyance tunnel, and calculate the tunnel diameter and flow velocity of each section of the water conveyance tunnel according to the key structural parameters.

[0057] Extract relevant parameters such as reservoir layout, power station kinetic parameters, and water turbine parameters of the previous specialty from the database. Calculate key parameters such as the sectional form, lining form, and economic flow velocity of the water conveyance tunnel according to the relevant parameters. Calculate key structural parameters such as the economic pipe diameter and cross-sectional area of each water conveyance tunnel according to the key parameters, and further calculate the tunnel diameter and flow velocity of each section of the water conveyance tunnel.

[0058] S2. Determine the structural shape and key shape parameters of the inlet and outlet, and construct the three-dimensional model and plane layout of the inlet and outlet.

[0059] According to the layout form of the upper reservoir and the topographic and geological conditions, formulate the body structure of the upper reservoir. The body structure includes side-type inlets and outlets and shaft-type inlets and outlets. Similarly, according to the layout form of the lower reservoir and the topographic and geological conditions, formulate the body structure of the lower reservoir. Therefore, there are four combinations of the body structures of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet, which can be freely combined according to needs.

[0060] By obtaining the body shape structures of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet, as well as the body shape parameters such as the number of orifices, the velocity through the trash rack, the actual height of the taken orifice, the actual width of the taken orifice, and the area ratio of the trash rack, and based on the key body shape parameters such as the aspect ratio of the trash rack and the Froude number Fr, the body shape parameters of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet are checked and adjusted to generate individual three-dimensional models of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet.

[0061] Obtain the positions of the three-dimensional models of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet arranged on the water conveyance line plan, obtain the key layout parameters such as the distance between the inlet / outlets, whether they are flush, and the offset distance determined by the designer, and automatically complete the three-dimensional modeling and planar layout of all the upper reservoir inlet / outlets and the lower reservoir inlet / outlets based on the relative position relationship parameters and the associated relationship for generating the water conveyance line.

[0062] S3. According to the drawn water conveyance line plan, preliminarily select the proposed positions of the main buildings and the key part parameters in the horizontal and vertical views, establish the two-dimensional and three-dimensional linkage relationship of the horizontal and vertical profiles, and perform the three-dimensional generation of the water conveyance line.

[0063] The water conveyance line plan is manually drawn according to the positions of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet. According to the water conveyance line plan and based on the three-dimensional geological model, preliminarily select the proposed positions of the main buildings and the key part parameters such as the axes of the penstock and the powerhouse in the horizontal and vertical profiles, establish the two-dimensional and three-dimensional linkage relationship of the horizontal and vertical profiles, and then construct the three-dimensional model of the water conveyance line according to the engineering empirical values.

[0064] Specifically, by associating the three-dimensional models of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet with the attribute information such as the station number and the elevation of the key points in the horizontal and vertical profiles, and combining the real-time monitoring mechanism to dynamically update the positions of the three-dimensional models of the upper reservoir inlet / outlet and the lower reservoir inlet / outlet in the horizontal and vertical profiles, the two-dimensional and three-dimensional design linkage of the overall water conveyance layout is realized.

[0065] S4. Calculate the TW value of the hydropower station surge tank, and calculate the head loss under the power generation condition and the head loss under the pumping condition. Based on the head loss under the power generation condition and the head loss under the pumping condition, construct the three-dimensional model of the surge tank.

[0066] According to the design code for hydropower station surge tanks, calculate the TW values of the three parts of the diversion surge tank, the tailrace surge tank, and the diversion to tailrace surge tank, and determine whether to set up a surge tank according to the calculation results. According to the basic parameters of each section of the water conveyance line in the three-dimensional model of the water conveyance line in step S3 and the determination result of whether to set up a surge tank, calculate the head loss under the power generation condition and the head loss under the pumping condition.

[0067] Calculate the Thoma stable cross-section, the highest surge, and the lowest surge based on the head loss in the power generation condition and the head loss in the pumping condition. Calculate the main parameters of the surge tank's shape structure according to the Thoma stable cross-section, the highest surge, and the lowest surge, and construct a 3D model of the surge tank. Associate the 3D model of the surge tank with the attribute information such as the station number and the elevation of key points in the horizontal and vertical profiles, and dynamically update the position of the 3D model of the surge tank in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism to achieve the two-dimensional and three-dimensional design linkage of the overall water conveyance layout.

[0068] S5. Construct a 3D model of the gate well according to the shape structure of the gate well and the first main parameter, and establish a two-dimensional and three-dimensional linkage relationship with the horizontal and vertical profiles. Construct a 3D model of the tail gate chamber according to the shape structure of the tail gate chamber and the second main parameter, and establish a two-dimensional and three-dimensional linkage relationship with the horizontal and vertical profiles.

[0069] Obtain the shape structure of the gate well and the first main parameter, and construct a 3D model of the gate well. Associate the 3D model of the gate well with the attribute information such as the station number and the elevation of key points in the horizontal and vertical profiles, and dynamically update the position of the 3D model of the gate well in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism.

[0070] Obtain the shape structure of the tail gate chamber and the second main parameter, and construct a 3D model of the tail gate chamber. Associate the 3D model of the tail gate chamber with the attribute information such as the station number and the elevation of key points in the horizontal and vertical profiles, and dynamically update the position of the 3D model of the tail gate chamber in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism. Achieve the two-dimensional and three-dimensional design linkage of the overall water conveyance layout by establishing the two-dimensional and three-dimensional linkage relationships between the 3D models of the gate well and the tail gate chamber and the horizontal and vertical profiles.

[0071] S6. Obtain the lining parameters, and construct a 3D lining model of the water conveyance tunnel according to the lining parameters. Calculate the engineering quantity based on the lining model.

[0072] Obtain the lining parameters such as the lining thickness and the lining form of each section of the water conveyance tunnel input by the user, and construct a 3D lining model of the water conveyance tunnel according to the lining parameters. Calculate the engineering quantities of excavation, support, concrete, etc. based on the 3D model of the water conveyance line, as well as the 3D models of the gate well, the tail gate chamber, and the lining.

[0073] The 3D lining model is associated with the attribute information such as the station number and the elevation of key points in the horizontal and vertical profiles, and dynamically updates the position of the 3D model of the gate well in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism to achieve the two-dimensional and three-dimensional design linkage of the overall water conveyance layout.

[0074] The present invention also discloses a three-dimensional design system for the overall layout of a pumped-storage power station water conveyance system, which is used to execute the above-mentioned three-dimensional design method for the overall layout of a pumped-storage power station water conveyance system, including:

[0075] The initial economic pipe diameter module extracts relevant parameters from the database, calculates key parameters based on the relevant parameters, calculates the key structural parameters of each water conveyance tunnel according to the key parameters, and further calculates the tunnel diameters and flow velocities of each section of the water conveyance tunnel.

[0076] The initial inlet and outlet module determines the structural shapes and key shape parameters of the inlets and outlets, and constructs the 3D models and plane layouts of the inlets and outlets.

[0077] The initial inlet and outlet module includes:

[0078] The inlet and outlet shape determination module determines the shape structures of the upper reservoir and the lower reservoir according to the layout forms and topographic and geological conditions of the upper reservoir and the lower reservoir respectively. Obtain the input shape structures and shape parameters of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet. Check and adjust the shape parameters of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet according to the key shape parameters, and generate individual 3D models of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet.

[0079] The layout management module obtains the positions of the 3D models of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet arranged on the water conveyance line plan, defines the relative positions of multiple inlets and outlets according to the layout parameters such as the spacing and misalignment distance between the upper reservoir inlet and outlet and the lower reservoir inlet and outlet, and completes the 3D modeling and plane layout of all the upper reservoir inlets and outlets and the lower reservoir inlets and outlets.

[0080] The water conveyance line design module, according to the drawn water conveyance line plan, initially selects the proposed positions of the main buildings and the key part parameters in the horizontal and vertical views, establishes the two-dimensional and three-dimensional linkage relationship of the horizontal and vertical sections, and conducts the 3D generation of the water conveyance line.

[0081] The water conveyance line design module includes:

[0082] The water conveyance vertical section module obtains the manually drawn water conveyance line plan, and based on the 3D geological model, initially selects the proposed positions of the main buildings and the key part parameters in the horizontal and vertical sections.

[0083] The water conveyance line initial determination module establishes the two-dimensional and three-dimensional linkage relationship between the 3D models of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet and the horizontal and vertical sections, and then constructs the 3D model of the water conveyance line according to the engineering experience values.

[0084] The water conveyance line management module automatically generates multiple lines according to the generated water conveyance line diagram and the main parameters such as buildings, penstocks, bifurcations and underground powerhouses, supports the adjustment of line points, and can fine-tune the automatically generated lines.

[0085] The surge tank judgment and shape determination module calculates the TW value of the hydropower station surge tank, and calculates the head loss under generating conditions and the head loss under pumping conditions. Based on the head loss under generating conditions and the head loss under pumping conditions, a three-dimensional model of the surge tank is constructed.

[0086] The surge tank judgment and shape determination module includes:

[0087] The surge tank judgment module calculates the TW values of the intake regulation, tail regulation, and intake to tail regulation parts, and determines whether to set up a surge tank according to the calculation results. Obtain the judgment result input manually.

[0088] The head loss calculation module calculates the head loss under generating conditions and the head loss under pumping conditions according to the basic parameters of each section of the water conveyance line in the three-dimensional model of the water conveyance line and the judgment result of whether to set up a surge tank.

[0089] The preliminary surge tank shape determination module calculates the Thoma stable section, the maximum surge, and the minimum surge according to the head loss under generating conditions and the head loss under pumping conditions. According to the Thoma stable section, the maximum surge, and the minimum surge, calculate the main parameters of the surge tank body structure and construct a three-dimensional model of the surge tank.

[0090] The water conveyance structure shape determination module constructs a three-dimensional model of the gate well according to the gate well body structure and the first main parameter, and establishes a two-dimensional and three-dimensional linkage relationship with the horizontal and vertical profiles. According to the tail gate chamber body structure and the second main parameter, construct a three-dimensional model of the tail gate chamber and establish a two-dimensional and three-dimensional linkage relationship with the horizontal and vertical profiles.

[0091] The water conveyance structure shape determination module includes:

[0092] The preliminary gate well shape determination module obtains the gate well body structure and the first main parameter, and constructs a three-dimensional model of the gate well. Associate the three-dimensional model of the gate well with the attribute information such as the station number and the elevation of key points in the horizontal and vertical profiles, and dynamically update the position of the three-dimensional model of the gate well in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism.

[0093] The preliminary tail water emergency gate chamber shape determination module obtains the tail gate chamber body structure and the second main parameter, and constructs a three-dimensional model of the tail gate chamber. Associate the three-dimensional model of the tail gate chamber with the attribute information such as the station number and the elevation of key points in the horizontal and vertical profiles, and dynamically update the position of the three-dimensional model of the tail gate chamber in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism.

[0094] The module for determining lining parameters and calculating the engineering quantity obtains the lining parameters, and constructs a three-dimensional lining model of the water conveyance tunnel according to the lining parameters. Calculate the engineering quantity according to the lining model.

[0095] The module for determining lining parameters and calculating the engineering quantity includes:

[0096] The lining parameter module obtains the lining parameters such as the lining thickness and lining form of each water conveyance tunnel section input by the user, and constructs a three-dimensional lining model of the water conveyance tunnel according to the lining parameters. The three-dimensional lining model is associated with the attribute information such as the station number and the elevation of key points in the horizontal and longitudinal sections, and combines the real-time monitoring mechanism to dynamically update the position of the three-dimensional gate well model in the two-dimensional horizontal and longitudinal sections, realizing the two-dimensional and three-dimensional design linkage of the overall water conveyance layout.

[0097] The project quantity statistics module calculates the project quantities such as excavation, support, and concrete according to the three-dimensional model of the water conveyance line, as well as the three-dimensional models of the gate well, the tail gate chamber, and the lining.

[0098] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A three-dimensional design method for the general layout of a water conveyance system in a pumped storage power station, characterized in that: It includes the following steps: S1. Calculate the key structural parameters of the water conveyance tunnel, and calculate the tunnel diameters and flow velocities of each section of the water conveyance tunnel according to the key structural parameters; S2. Determine the structural shapes and key shape parameters of the inlet and outlet, and construct the three-dimensional model and plane layout of the inlet and outlet; S3. According to the drawn plan of the water conveyance line, preliminarily select the proposed positions of the main buildings and the key part parameters in the horizontal and longitudinal views, establish the two-dimensional and three-dimensional linkage relationship of the horizontal and longitudinal sections, and construct the three-dimensional model of the water conveyance line; S4. Calculate the TW value of the hydropower station surge chamber, and calculate the head losses under the power generation condition and the pumping condition; According to the head losses under the power generation condition and the pumping condition, construct the three-dimensional model of the surge chamber; S5. According to the gate shaft body shape structure and the first main parameter, construct the three-dimensional model of the gate shaft, and establish the two-dimensional and three-dimensional linkage relationship with the horizontal and longitudinal sections; According to the tail gate chamber body shape structure and the second main parameter, construct the three-dimensional model of the tail gate chamber, and establish the two-dimensional and three-dimensional linkage relationship with the horizontal and longitudinal sections; S6. Obtain the lining parameters, and construct the three-dimensional lining model of the water conveyance tunnel according to the lining parameters; Calculate the engineering quantities according to the three-dimensional model of the water conveyance line, as well as the three-dimensional models of the gate shaft, the tail gate chamber and the lining; The key structural parameters include the economic pipe diameter and cross-sectional area of the water conveyance tunnel; The key shape parameters include the height-width ratio of the trash rack and the Froude number.

2. The three-dimensional design method for the overall layout of the water conveyance system of a pumped storage power station according to claim 1, wherein: Step S1 includes the following steps: Extract relevant parameters from the database; Calculate the key parameters according to the relevant parameters; Calculate the key structural parameters of each water conveyance tunnel according to the key parameters, and further calculate the tunnel diameters and flow velocities of each section of the water conveyance tunnel; The relevant parameters include the reservoir layout of the previous specialty, the power station kinetic parameters, and the water turbine parameters; The key parameters include the water conveyance tunnel segmentation form, the lining form and the economic flow velocity.

3. The three-dimensional design method for the overall layout of the water conveyance system of a pumped storage power station according to claim 1, characterized in that: Step S2 includes the following steps: According to the layout form of the upper reservoir and the topographic and geological conditions, draw up the body shape structure of the upper reservoir; According to the layout form of the lower reservoir and the topographic and geological conditions, draw up the body shape structure of the lower reservoir; By obtaining the input body shape structures of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet, as well as the shape parameters, check and adjust the shape parameters of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet according to the key shape parameters, and generate the individual three-dimensional models of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet; Obtain the positions of the three-dimensional models of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet arranged on the water conveyance line plan, and define the relative positions when multiple inlets and outlets are involved according to the layout parameters of the upper reservoir inlet and outlet and the lower reservoir inlet and outlet, and complete the three-dimensional modeling and plane layout of all the upper reservoir inlet and outlet and the lower reservoir inlet and outlet; The shape parameters include the number of orifices, the flow velocity through the trash rack, the actual orifice height, the actual orifice width, and the trash rack area ratio.

4. The three-dimensional design method for the overall layout of the water conveyance system of a pumped storage power station according to claim 1, characterized in that: Step S3 includes the following steps: According to the water conveyance line plan and based on the three-dimensional geological model, preliminarily select the proposed positions of the main buildings and the key part parameters in the horizontal and longitudinal views, establish the two-dimensional and three-dimensional linkage relationship of the horizontal and longitudinal sections, and then construct the three-dimensional model of the water conveyance line according to the engineering empirical values.

5. The three-dimensional design method for the overall layout of the water conveyance system of a pumped storage power station according to claim 1, characterized in that: Step S4 includes the following steps: Calculate the TW values of the intake regulation, tail regulation, and intake to tail regulation, and determine whether to set a surge shaft based on the calculation results; According to the basic parameters of each section of the water conveyance line in the three-dimensional model of the water conveyance line and the determination result of whether to set a surge shaft, calculate the head loss under power generation conditions and the head loss under pumping conditions; Calculate the Thoma stable section, the maximum surge, and the minimum surge based on the head loss under power generation conditions and the head loss under pumping conditions; Calculate the main parameters of the surge shaft body structure based on the Thoma stable section, the maximum surge, and the minimum surge, and construct a three-dimensional model of the surge shaft; Associate the attribute information in the three-dimensional model of the surge shaft with the horizontal and vertical profiles, and dynamically update the position of the three-dimensional model of the surge shaft in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism; The attribute information includes the station number and the elevation of key points in the horizontal and vertical profiles.

6. The three-dimensional design method for the general layout of the water conveyance system of a pumped storage power station according to claim 1, wherein: Step S5 includes the following steps: Obtain the gate well body structure and the first main parameters, and construct a three-dimensional model of the gate well; Associate the three-dimensional model of the gate well with the attribute information in the horizontal and vertical profiles, and dynamically update the position of the three-dimensional model of the gate well in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism; Obtain the tail gate chamber body structure and the second main parameters, and construct a three-dimensional model of the tail gate chamber; Associate the three-dimensional model of the tail gate chamber with the attribute information in the horizontal and vertical profiles, and dynamically update the position of the three-dimensional model of the tail gate chamber in the two-dimensional horizontal and vertical profiles in combination with the real-time monitoring mechanism.

7. A three-dimensional design system for the overall layout of a water conveyance system of a pumped storage power station, which is used to execute the three-dimensional design method for the overall layout of the water conveyance system of a pumped storage power station according to any one of claims 1-6, characterized in that: Include: An initial economic diameter module that extracts relevant parameters from the database, calculates key parameters based on the relevant parameters, calculates the key structural parameters of each water conveyance tunnel based on the key parameters, and further calculates the tunnel diameter and flow velocity of each section of the water conveyance tunnel; An initial intake and outlet module that determines the structure shape and key shape parameters of the intake and outlet, and constructs a three-dimensional model and a planar layout of the intake and outlet; A water conveyance line design module that, based on the drawn water conveyance line plan, preliminarily selects the proposed positions of the main buildings and the key part parameters in the horizontal and vertical views, establishes the two-dimensional and three-dimensional linkage relationship of the horizontal and vertical profiles, and generates the three-dimensional water conveyance line; A surge shaft judgment and shape determination module that calculates the TW value of the hydropower station surge shaft, calculates the head loss under power generation conditions and the head loss under pumping conditions; constructs a three-dimensional model of the surge shaft based on the head loss under power generation conditions and the head loss under pumping conditions; A water conveyance structure shape determination module that constructs a three-dimensional model of the gate well based on the gate well body structure and the first main parameters, and establishes the two-dimensional and three-dimensional linkage relationship with the horizontal and vertical profiles; constructs a three-dimensional model of the tail gate chamber based on the tail gate chamber body structure and the second main parameters, and establishes the two-dimensional and three-dimensional linkage relationship with the horizontal and vertical profiles; A module for determining lining parameters and calculating the project quantity that obtains the lining parameters, constructs a three-dimensional lining model of the water conveyance tunnel based on the lining parameters; calculates the project quantity based on the lining model; The key structural parameters include the economic diameter and cross-sectional area of the water conveyance tunnel; The key shape parameters include the height-width ratio of the trash rack and the Froude number; The relevant parameters include the reservoir layout, power station kinetic parameters, and water turbine parameters of the previous specialty; The key parameters include the water conveyance tunnel segmentation form, lining form, and economic flow velocity; The shape parameters include the number of orifices, the flow velocity through the trash rack, the actual orifice height, the actual orifice width, and the trash rack area ratio; The attribute information includes the station number and the elevation of key points in the horizontal and vertical profiles.

Images