Dynamic adjustment method and system for water transmission lines based on underground powerhouse axis

Abstract

The present invention belongs to the technical field of water transmission and power generation systems, and discloses a method and system for dynamic adjustment of water transmission lines based on the axis of an underground plant. The present invention obtains and reads the parameters of the water transmission line, building information, and plant axis adjustment parameters through a data reading and analysis module, analyzes and generates control points and turning sections, selects and executes the plant angle adjustment strategy through the plant axis angle adjustment module, selects and executes the plant position adjustment method through the plant axis position adjustment module, and finally dynamically adjusts the water transmission line according to the adjustment of the plant axis angle and the plant axis position through the water transmission line dynamic adjustment module. The present invention can automatically adjust the water transmission line according to the selected adjustment strategy and method, and the adjustment result meets the design requirements of the water transmission line, which can improve the coordination efficiency of the plant and the road.

Description

Technical Field

[0001] The present invention belongs to the technical field of water transmission and power generation systems, and in particular relates to a method and system for dynamically adjusting a water transmission line based on an axis of an underground powerhouse. Background Art

[0002] At present, the line design of the water transmission and power generation system of pumped storage power stations is mainly based on two-dimensional design of horizontal and vertical sections. Some scholars have also explored the three-dimensional design of the lines, but the accuracy and depth are insufficient. Basically, the water transmission lines are generated based on the layout parameters of the water transmission system, and most of them are typical layouts. There is a lack of research and development of three-dimensional collaborative design methods and procedures for parameterized adjustment of water transmission lines, especially those combined with the axis of underground powerhouses. After the axis of the underground powerhouse is adjusted, the water transmission system line cannot be matched and adjusted, and the water transmission line can only be regenerated based on the existing powerhouse location, which lacks flexibility and the possibility of solution optimization. Summary of the Invention

[0003] The present invention aims to address the deficiencies of the existing technology and provide a method and system for dynamic adjustment of water transmission lines based on the axis of underground plant buildings, which can automatically adjust the water transmission lines according to selected adjustment strategies and methods, and the adjustment results meet the design requirements of the water transmission lines, thereby improving the coordination efficiency of the plant roads.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0005] A method for dynamically adjusting a water transmission line based on an underground powerhouse axis comprises the following steps:

[0006] The following steps are involved:

[0007] S1. Read the parameters of the water transmission line, obtain the building information on the water transmission line, generate control points, and process the control points to generate turning sections;

[0008] S2. Obtaining the adjustment parameters of the plant axis;

[0009] S3. When the plant axis adjustment parameter indicates that the plant axis angle needs to be adjusted, select one of the plant axis angle adjustment strategies 1, 2, and 3. Strategy 1 is to adjust the turning section of the water transmission line pipeline, strategy 2 is to adjust the relative angle between the branch pipe and the bifurcated branch pipe at the bifurcation of the water transmission line pipeline, and strategy 3 is to adjust the angle between the water transmission line pipeline and the plant axis.

[0010] When the plant axis adjustment parameters indicate that the plant axis position needs to be adjusted, and the plant axis position moves upstream, the length of each flat section of the water transmission line pipeline is shortened;

[0011] When the powerhouse axis adjustment parameters indicate that the powerhouse axis position needs to be adjusted and the powerhouse axis position moves downstream, the tailwater tunnel length is shortened;

[0012] S4. Based on the adjustment of the plant axis angle and the plant axis position, the water transmission line is dynamically adjusted.

[0013] Preferably, in step S1, the water transmission route parameters include multiple three-dimensional multi-segment lines, pipeline parameters of each segment of the line, main pipe parameters, branch pipe parameters, bifurcated pipe parameters, branch pipe parameters at the bifurcated pipe, bifurcated branch pipe parameters, the starting point, end point and line length of the line, the horizontal length of each flat section of the pipeline of the water transmission line, and the horizontal length of the tailwater tunnel of the water transmission line; the building information includes the location, spacing, direction, water supply form and number of units of the building, and the number of main pipes and branches of the water transmission line is determined based on the water supply form and the number of units.

[0014] Preferably, in step S1, the control points include a water diversion system control point and a tailwater system control point;

[0015] The control points of the water diversion system include: the water diversion surge tank as control point J, the center point of the water diversion branch pipe as control point K, the intersection of the water diversion branch pipe axis and the powerhouse axis as control point P, and the intersection of the center lines of the line turning section as control point H;

[0016] The tailwater system control points include: the center point of the unit is control point C, the center point of the tailwater branch pipe is control point K', the bottom tunnel of the tailwater chamber is control point L, the tailwater surge chamber is control point M, and the intersection point of the center line of the line turning section is control point H;

[0017] The control points are sorted in order according to the main pipe of the water transmission line, the branch pipe of the water transmission line and the direction of water flow.

[0018] Preferably, in step S1, the spacing includes the spacing of the water diversion system and the spacing of the tailwater system;

[0019] The spacing of the water diversion system includes: the spacing between the water diversion surge tanks LJ, the spacing between the center points of the branch pipes LK, and the spacing between the intersection points of the water diversion branch pipe axis and the powerhouse axis LP;

[0020] The tailwater system spacing includes: unit center point spacing LC, tailwater branch pipe center point spacing LK', tailwater lock chamber bottom tunnel spacing LL, tailwater surge chamber spacing LM;

[0021] Determine the location of the control points based on the number of main pipes, the number of branch pipes and the spacing between them, and connect the control points in sequence.

[0022] Preferably, in step S1, generating a turning segment specifically includes:

[0023] Control points are connected to form multiple lines, and the corner control points are screened. Adjacent corner control points are detected and screened out from the corner control points, and the adjacent corner control points are processed to generate turning segments.

[0024] Preferably, in step S2, the plant axis adjustment parameters include: plant axis angle adjustment information and plant axis position adjustment information.

[0025] Preferably, in step S3, strategy 1 specifically includes:

[0026] Adjust the line direction of the water transmission line pipeline and the corresponding parameters of the pipeline's turning section, keep the angle between the water diversion branch pipe and the powerhouse axis unchanged, and match the powerhouse axis angle adjustment information: according to the angle formed by the direction of the powerhouse axis after adjustment and the direction of the powerhouse axis before adjustment, keep the relative relationship between the water diversion branch pipe center control point K and the intersection control point P of the water diversion branch pipe axis and the powerhouse axis unchanged, adjust the position of the pipeline's turning section H, and adjust the turning section radius and turning section angle to meet the design limits of the turning radius and turning angle requirements; the adjustment strategy of the tailwater system is the same as that of the water diversion system.

[0027] Preferably, in step S3, strategy 2 specifically includes:

[0028] Adjust the relative angles α and β between the diversion bifurcated pipe and the diversion bifurcated pipe to match the angle adjustment information of the powerhouse axis: keep the pipeline route unchanged, the turning radius and turning angle of the turning section of the pipeline also remain unchanged, and the angle θ of the bifurcation angle between the diversion bifurcated pipes remains unchanged. According to the angle formed by the direction of the powerhouse axis after adjustment and the direction of the powerhouse axis before adjustment, adjust the relative angles α and β between the diversion bifurcated pipe and the diversion bifurcated pipe, and the angle of the bifurcation angle between the diversion bifurcated pipe + the relative angle between the diversion bifurcated pipe and the diversion bifurcated pipe = 360°, α+β+θ=360°, and the relationship between the control point P of the intersection of the diversion branch axis and the powerhouse axis changes; the adjustment strategy 2 of the tailwater system is the same as that of the diversion system.

[0029] Preferably, in step S3, strategy three specifically includes:

[0030] Adjust the angle between the axis of the water diversion branch pipe and the axis of the powerhouse to match the angle adjustment information of the powerhouse axis: keep the pipeline route unchanged, keep the turning radius and turning angle of the turning section of the pipeline unchanged, and keep the relative angles α and β between the water diversion branch pipe and the water diversion branch pipe, and the bifurcation angle θ between the water diversion branch pipes unchanged. According to the angle formed by the direction of the powerhouse axis after adjustment and the direction of the powerhouse axis before adjustment, adjust the angle γ between the axis of the water diversion branch pipe and the powerhouse axis, and at the same time ensure that the angle between the axis of the water diversion branch pipe and the powerhouse axis is greater than 60° and less than 180°; the adjustment strategy three of the tailwater system is the same as that of the water diversion system.

[0031] Preferably, in step S3, reducing the length of each flat section of the pipeline of the water transmission line specifically includes:

[0032] When the plant axis needs to move upstream, the length of each flat section of the water transmission line pipeline is shortened according to the plant axis position adjustment information, the length of the tailwater tunnel is increased accordingly, and the sum of the lengths of each flat section is equal to the length of the tailwater tunnel.

[0033] Preferably, in step S3, reducing the length of the tailrace tunnel specifically includes:

[0034] When the plant axis needs to move downstream, the length of the tailwater tunnel is shortened according to the plant axis position adjustment information, and the lengths of the corresponding flat sections of the water transmission line pipeline are adjusted, and the sum of the lengths of the flat sections is made equal to the length of the tailwater tunnel.

[0035] The present invention also provides a system for dynamically adjusting a water transmission line using the above-mentioned method for dynamically adjusting a water transmission line based on an underground powerhouse axis, comprising a data reading and analysis module, a powerhouse axis adjustment module, and a water transmission line dynamic adjustment module;

[0036] The data reading and analysis module is used to obtain and read the parameters of the water transmission line, building information, and plant axis adjustment parameters, and analyze and generate control points and turning sections;

[0037] The powerhouse axis adjustment module is used to select and execute powerhouse angle adjustment strategies, such as shortening the length of each flat section of the water transmission line pipeline or shortening the length of the tailwater tunnel;

[0038] The water transmission line dynamic adjustment module is used to dynamically adjust the water transmission line according to the adjustment of the plant axis angle and the plant axis position.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] By adjusting the angle and position of the plant axis, selecting the adjustment strategy and method, and then adjusting the control points, the intersection control points of the water diversion branch pipe axis and the plant axis, the turning sections of the pipeline, the lengths of each flat section and the tailwater tunnel length, the corresponding water transmission line will be automatically adjusted according to the selected adjustment strategy. The adjustment result meets the design requirements of the water transmission line, improves the efficiency of plant-road coordination, effectively reduces the problems of errors and omissions caused by human factors, and improves the quality and efficiency of plant-road collaborative design. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a flow chart of a method for dynamically adjusting a water transmission line based on an underground powerhouse axis according to an embodiment of the present invention;

[0042] Figure 2 This is an example diagram of a plant axis angle adjustment strategy according to an embodiment of the present invention;

[0043] Figure 3This is an example diagram of a second plant axis angle adjustment strategy according to an embodiment of the present invention;

[0044] Figure 4 3. Schematic diagram of the third example of the plant axis angle adjustment strategy according to an embodiment of the present invention;

[0045] Figure 5 This is an example diagram of adjusting the upstream movement of the plant axis according to an embodiment of the present invention;

[0046] Figure 6 This is an example diagram of the downstream movement adjustment of the plant axis in an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] Example 1

[0049] Combine Figure 1 As shown, an embodiment of the present invention provides a method for dynamically adjusting a water transmission line based on an axis of an underground powerhouse, comprising the following steps:

[0050] S1. Read the parameters of the water transmission line, obtain the building information on the water transmission line, generate control points, and process the control points to generate turning sections;

[0051] S2. Obtaining the adjustment parameters of the plant axis;

[0052] S3. When the plant axis adjustment parameter indicates that the plant axis angle needs to be adjusted, select one of the plant axis angle adjustment strategies 1, 2, and 3. Strategy 1 is to adjust the turning section of the water transmission line pipeline, strategy 2 is to adjust the relative angle between the branch pipe and the bifurcated branch pipe at the bifurcation of the water transmission line pipeline, and strategy 3 is to adjust the angle between the water transmission line pipeline and the plant axis.

[0053] Specifically, the decision on which strategy to choose, one, two, or three, can be made based on the designer’s previous experience;

[0054] When the plant axis adjustment parameters indicate that the plant axis position needs to be adjusted, and the plant axis position moves upstream, the length of each flat section of the water transmission line pipeline is shortened;

[0055] When the powerhouse axis adjustment parameters indicate that the powerhouse axis position needs to be adjusted and the powerhouse axis position moves downstream, the tailwater tunnel length is shortened;

[0056] S4. Based on the adjustment of the plant axis angle and the plant axis position, the water transmission line is dynamically adjusted.

[0057] Example 2

[0058] Combine Figure 1 As shown, an embodiment of the present invention provides a method for dynamically adjusting a water transmission line based on an axis of an underground powerhouse, comprising the following steps:

[0059] S1. Read the parameters of the water transmission line, obtain the building information on the water transmission line, generate control points, and process the control points to generate turning sections;

[0060] S2. Obtaining the adjustment parameters of the plant axis;

[0061] S3. When the plant axis adjustment parameter indicates that the plant axis angle needs to be adjusted, select one of the plant axis angle adjustment strategies 1, 2, and 3. Strategy 1 is to adjust the turning section of the water transmission line pipeline, strategy 2 is to adjust the relative angle between the branch pipe and the bifurcated branch pipe at the bifurcation of the water transmission line pipeline, and strategy 3 is to adjust the angle between the water transmission line pipeline and the plant axis.

[0062] Specifically, the decision on which strategy to choose, one, two, or three, can be made based on the designer’s previous experience;

[0063] When the plant axis adjustment parameters indicate that the plant axis position needs to be adjusted, and the plant axis position moves upstream, the length of each flat section of the water transmission line pipeline is shortened;

[0064] When the powerhouse axis adjustment parameters indicate that the powerhouse axis position needs to be adjusted and the powerhouse axis position moves downstream, the tailwater tunnel length is shortened;

[0065] S4. Dynamically adjust the water transmission line based on the adjustment of the plant axis angle and the plant axis position;

[0066] On this basis, in this embodiment, water transmission route parameters include multiple three-dimensional multi-segment routes, pipeline parameters of each segment, main pipe parameters, branch pipe parameters, branch pipe parameters at the fork, branch pipe parameters, route start point, end point, and route length, the length of each flat section of the pipeline in the water transmission route, and the length of the tailwater tunnel of the water transmission route; building information includes the location, spacing, direction, water supply type, and number of units of the building. The number of main pipes and branches of the water transmission route is determined based on the water supply type and the number of units.

[0067] Furthermore, the control points include the water diversion system control points and the tailwater system control points;

[0068] The control points of the water diversion system include: the water diversion surge tank as control point J, the center point of the water diversion branch pipe as control point K, the intersection of the water diversion branch pipe axis and the powerhouse axis as control point P, and the intersection of the center lines of the line turning section as control point H;

[0069] The tailwater system control points include: the center point of the unit is control point C, the center point of the tailwater branch pipe is control point K', the bottom tunnel of the tailwater chamber is control point L, the tailwater surge chamber is control point M, and the intersection point of the center line of the line turning section is control point H;

[0070] Sort the control points in order according to the main pipe of the water transmission line, the branch pipe of the water transmission line and the direction of water flow;

[0071] Furthermore, the spacing includes the spacing of the diversion system and the spacing of the tailwater system;

[0072] The spacing of the water diversion system includes: the spacing between the water diversion surge tanks LJ, the spacing between the center points of the branch pipes LK, and the spacing between the intersection points of the water diversion branch pipe axis and the powerhouse axis LP;

[0073] The tailwater system spacing includes: unit center point spacing LC, tailwater branch pipe center point spacing LK', tailwater lock chamber bottom tunnel spacing LL, tailwater surge chamber spacing LM;

[0074] Determine the location of the control points based on the number of main pipes and branch pipes of the water transmission line and their spacing, and connect the control points in sequence;

[0075] Directions are defined as "East", represented by E; "South", represented by S; "West", represented by W; "North", represented by N; "Southeast", represented by SE; "Southwest", represented by SW; "Northwest", represented by NW; "Northeast", represented by NE.

[0076] Furthermore, the process of generating a turning segment specifically includes:

[0077] Connect control points to form multiple lines, select corner control points, detect and select adjacent corner control points from the corner control points, perform corner processing on the adjacent corner control points, and generate turning segments;

[0078] Furthermore, the factory building axis adjustment parameters include: factory building axis angle adjustment information and factory building axis position adjustment information.

[0079] By adjusting the angle and position of the plant axis, selecting the adjustment strategy and method, and then adjusting the control points, the intersection control points of the water diversion branch pipe axis and the plant axis, the turning sections of the pipeline, the lengths of each flat section and the length of the tailwater tunnel, etc., the corresponding water transmission line will automatically adjust the water transmission line according to the selected adjustment strategy, thereby realizing dynamic adjustment of the entire water transmission line.

[0080] Example 3

[0081] Combine Figure 1 As shown, an embodiment of the present invention provides a method for dynamically adjusting a water transmission line based on an axis of an underground powerhouse, comprising the following steps:

[0082] S1. Read the parameters of the water transmission line, obtain the building information on the water transmission line, generate control points, and process the control points to generate turning sections;

[0083] S2. Obtaining the adjustment parameters of the plant axis;

[0084] S3. When the plant axis adjustment parameter indicates that the plant axis angle needs to be adjusted, select one of the plant axis angle adjustment strategies 1, 2, and 3. Strategy 1 is to adjust the turning section of the water transmission line pipeline, strategy 2 is to adjust the relative angle between the branch pipe and the bifurcated branch pipe at the bifurcation of the water transmission line pipeline, and strategy 3 is to adjust the angle between the water transmission line pipeline and the plant axis.

[0085] Specifically, the decision on which strategy to choose, one, two, or three, can be made based on the designer’s previous experience;

[0086] When the plant axis adjustment parameters indicate that the plant axis position needs to be adjusted, and the plant axis position moves upstream, the length of each flat section of the water transmission line pipeline is shortened;

[0087] When the powerhouse axis adjustment parameters indicate that the powerhouse axis position needs to be adjusted and the powerhouse axis position moves downstream, the tailwater tunnel length is shortened;

[0088] S4. Dynamically adjust the water transmission line based on the adjustment of the plant axis angle and the plant axis position;

[0089] Furthermore, the control points include the water diversion system control points and the tailwater system control points;

[0090] Furthermore, the spacing includes the spacing of the diversion system and the spacing of the tailwater system;

[0091] Furthermore, the process of generating a turning segment specifically includes:

[0092] Connect control points to form multiple lines, select corner control points, detect and select adjacent corner control points from the corner control points, perform corner processing on the adjacent corner control points, and generate turning segments;

[0093] Furthermore, the plant axis adjustment parameters include: plant axis angle adjustment information, plant axis position adjustment information;

[0094] On this basis, in this embodiment, in step S3, strategy 1 specifically includes:

[0095] like Figure 2 As shown, the line direction of the water transmission line pipeline and the corresponding parameters of the pipeline turning section are adjusted, the angle between the water diversion branch pipe and the powerhouse axis is kept unchanged, and the powerhouse axis angle adjustment information is matched: according to the angle formed by the direction of the powerhouse axis after adjustment and the direction of the powerhouse axis before adjustment, the relative relationship between the center control point K of the water diversion branch pipe and the intersection control point P of the water diversion branch pipe axis and the powerhouse axis is kept unchanged, the position of the pipeline turning section H is adjusted, and the turning section radius and turning section angle are adjusted to meet the design limits of the turning radius and the turning angle requirements; the adjustment strategy of the tailwater system is the same as that of the water diversion system;

[0096] Furthermore, Strategy 2 specifically includes:

[0097] like Figure 3 As shown, the relative angles α and β between the diversion bifurcated pipe and the diversion bifurcated pipe are adjusted to match the angle adjustment information of the powerhouse axis: the pipeline route remains unchanged, the turning radius and turning angle of the turning section of the pipeline also remain unchanged, and the angle θ of the bifurcation angle between the diversion bifurcated pipes remains unchanged. According to the angle formed by the direction after the adjustment of the powerhouse axis and the direction before the adjustment of the powerhouse axis, the relative angles α and β between the diversion bifurcated pipe and the diversion bifurcated pipe are adjusted, and the angle of the bifurcation angle between the diversion bifurcated pipe + the relative angle between the diversion bifurcated pipe and the diversion bifurcated pipe = 360°, α+β+θ=360°, and the relationship between the control point P of the intersection of the diversion branch axis and the powerhouse axis changes; the adjustment strategy 2 of the tailwater system is the same as that of the diversion system;

[0098] Furthermore, Strategy 3 specifically includes:

[0099] like Figure 4 As shown, the angle between the axis of the water diversion branch pipe and the axis of the powerhouse is adjusted to match the angle adjustment information of the powerhouse axis: the pipeline route remains unchanged, the turning radius and turning angle of the turning section of the pipeline remain unchanged, and the relative angles α and β between the water diversion branch pipe and the water diversion branch pipe, as well as the bifurcation angle θ between the water diversion branch pipes remain unchanged. According to the angle formed by the direction of the powerhouse axis after adjustment and the direction of the powerhouse axis before adjustment, the angle γ between the axis of the water diversion branch pipe and the powerhouse axis is adjusted, while ensuring that the angle between the axis of the water diversion branch pipe and the powerhouse axis is greater than 60° and less than 180°. The adjustment strategy three of the tailwater system is the same as that of the water diversion system.

[0100] Example 4

[0101] Combine Figure 1 As shown, an embodiment of the present invention provides a method for dynamically adjusting a water transmission line based on an axis of an underground powerhouse, comprising the following steps:

[0102] S1. Read the parameters of the water transmission line, obtain the building information on the water transmission line, generate control points, and process the control points to generate turning sections;

[0103] S2. Obtaining the adjustment parameters of the plant axis;

[0104] S3. When the plant axis adjustment parameter indicates that the plant axis angle needs to be adjusted, select one of the plant axis angle adjustment strategies 1, 2, and 3. Strategy 1 is to adjust the turning section of the water transmission line pipeline, strategy 2 is to adjust the relative angle between the branch pipe and the bifurcated branch pipe at the bifurcation of the water transmission line pipeline, and strategy 3 is to adjust the angle between the water transmission line pipeline and the plant axis.

[0105] Specifically, the decision on which strategy to choose, one, two, or three, can be made based on the designer’s previous experience;

[0106] When the plant axis adjustment parameters indicate that the plant axis position needs to be adjusted, and the plant axis position moves upstream, the length of each flat section of the water transmission line pipeline is shortened;

[0107] When the powerhouse axis adjustment parameters indicate that the powerhouse axis position needs to be adjusted and the powerhouse axis position moves downstream, the tailwater tunnel length is shortened;

[0108] S4. Dynamically adjust the water transmission line based on the adjustment of the plant axis angle and the plant axis position;

[0109] Furthermore, the control points include the water diversion system control points and the tailwater system control points;

[0110] Furthermore, the spacing includes the spacing of the diversion system and the spacing of the tailwater system;

[0111] Furthermore, the process of generating a turning segment specifically includes:

[0112] Connect control points to form multiple lines, select corner control points, detect and select adjacent corner control points from the corner control points, perform corner processing on the adjacent corner control points, and generate turning segments;

[0113] Furthermore, the plant axis adjustment parameters include: plant axis angle adjustment information, plant axis position adjustment information;

[0114] On this basis, in this embodiment, in step S3, there are two ways to adjust the position of the powerhouse axis: one is to reduce the length of each flat section of the water transmission line pipeline, and the other is to reduce the length of the tailwater tunnel. Reducing the length of each flat section of the water transmission line pipeline specifically includes:

[0115] When the powerhouse axis needs to be moved upstream, the lengths of the horizontal sections of the water transmission line are shortened according to the powerhouse axis position adjustment information, and the length of the tailwater tunnel is increased accordingly, so that the sum of the lengths of the horizontal sections is equal to the length of the tailwater tunnel;

[0116] like Figure 5 As shown, the horizontal sections of the pipeline of the water transmission line are divided into an upper horizontal section, a middle horizontal section and a lower horizontal section. The length of the upper horizontal section is Lpy1, the length of the middle horizontal section is Lpy2, the length of the lower horizontal section is Lpy3, and the length of the tailwater tunnel is Lw. When the powerhouse axis needs to move upstream, according to the powerhouse axis position adjustment information, that is, the length of the powerhouse axis moved upstream, the length of each horizontal section of the pipeline of the water transmission line is correspondingly shortened, that is, the length of the upper horizontal section Lpy1, the length of the middle horizontal section Lpy2, and the length of the lower horizontal section Lpy3 are adjusted, and the length of the tailwater tunnel Lw is correspondingly increased, and Lw=Lpy1+Lpy2+Lpy3 is satisfied at the same time. In actual application, if the pressure pipeline is a single vertical shaft or a single inclined shaft, there are only the upper horizontal section Lpy1 and the lower horizontal section Lpy3, and there is no middle horizontal section Lpy2. Accordingly, Lw=Lpy1+Lpy3 needs to be satisfied.

[0117] Furthermore, reducing the length of the tailrace tunnel specifically includes:

[0118] When the powerhouse axis needs to be moved downstream, the tailwater tunnel length is shortened based on the powerhouse axis position adjustment information, and the lengths of the corresponding horizontal sections of the water transmission line are adjusted, and the sum of the lengths of the horizontal sections is made equal to the length of the tailwater tunnel;

[0119] like Figure 6 As shown in the figure, when the powerhouse axis needs to move downstream, the position adjustment information of the powerhouse axis, that is, the length of the powerhouse axis moved downstream, is used to reduce the length Lw of the tailwater tunnel accordingly, increase the length Lpy1 of the upper flat section, the length Lpy2 of the middle flat section, and the length Lpy3 of the lower flat section, and satisfy Lw=Lpy1+Lpy2+Lpy3. Similarly, in actual application, if the pressure pipeline is in the form of a single vertical shaft or a single inclined shaft, there are only the upper flat section Lpy1 and the lower flat section Lpy3, and there is no middle flat section Lpy2. Accordingly, Lw=Lpy1+Lpy3 needs to be satisfied.

[0120] It should be noted that the horizontal length mentioned above is not the actual length. The actual length needs to be calculated based on the horizontal length, each flat section and the slope of the tailwater tunnel.

[0121] Example 5

[0122] The embodiment of the present invention further provides a system for dynamically adjusting a water transmission line based on the above-mentioned method for dynamically adjusting a water transmission line based on an underground powerhouse axis, comprising a data reading and analysis module, a powerhouse axis adjustment module, and a water transmission line dynamic adjustment module;

[0123] The data reading and analysis module is used to obtain and read the parameters of the water transmission line, building information, and plant axis adjustment parameters, and analyze and generate control points and turning sections;

[0124] The powerhouse axis adjustment module is used to select and execute powerhouse angle adjustment strategies, such as shortening the length of each flat section of the water transmission line pipeline or shortening the length of the tailwater tunnel;

[0125] The water transmission line dynamic adjustment module is used to dynamically adjust the water transmission line according to the adjustment of the plant axis angle and the plant axis position.

[0126] The above description is only an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the scope of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A method for dynamic adjustment of water supply lines based on the axis of an underground powerhouse, characterized in that: The following steps are involved: S1. Read the parameters of the water transmission line, obtain the building information on the water transmission line, generate control points, and process the control points to generate turning sections; S2. Obtaining the adjustment parameters of the plant axis; S3. When the plant axis adjustment parameter indicates that the plant axis angle needs to be adjusted, select one of the plant axis angle adjustment strategies 1, 2, and 3. Strategy 1 is to adjust the turning section of the water transmission line pipeline, strategy 2 is to adjust the relative angle between the branch pipe and the bifurcated branch pipe at the bifurcation of the water transmission line pipeline, and strategy 3 is to adjust the angle between the water transmission line pipeline and the plant axis. When the plant axis adjustment parameters indicate that the plant axis position needs to be adjusted, and the plant axis position moves upstream, the length of each flat section of the water transmission line pipeline is shortened; When the powerhouse axis adjustment parameters indicate that the powerhouse axis position needs to be adjusted and the powerhouse axis position moves downstream, the tailwater tunnel length is shortened; S4. Based on the adjustment of the plant axis angle and the plant axis position, the water transmission line is dynamically adjusted.

2. The method for dynamic adjustment of water supply lines based on the axis of underground powerhouse according to claim 1, characterized in that: In step S1, the water transmission route parameters include multiple three-dimensional multi-segment routes, pipeline parameters of each segment of the route, main pipe parameters, branch pipe parameters, branch pipe parameters at the fork, branch pipe parameters, starting point, end point and route length of the route, horizontal length of each flat section of the pipeline of the water transmission route, and horizontal length of the tailwater tunnel of the water transmission route; Building information includes the building's location, spacing, direction, water supply type, and number of units. The number of main pipes and branch pipes in the water transmission line is determined based on the water supply type and the number of units.

3. The method for dynamic adjustment of water supply lines based on the axis of underground powerhouse according to claim 2, characterized in that: In step S1, the control points include the water diversion system control points and the tailwater system control points; The control points of the water diversion system include: the water diversion surge tank as control point J, the center point of the water diversion branch pipe as control point K, the intersection of the water diversion branch pipe axis and the powerhouse axis as control point P, and the intersection of the center lines of the line turning section as control point H; The tailwater system control points include: the center point of the unit is control point C, the center point of the tailwater branch pipe is control point K', the bottom tunnel of the tailwater chamber is control point L, the tailwater surge chamber is control point M, and the intersection point of the center line of the line turning section is control point H; The control points are sorted in order according to the main pipe of the water transmission line, the branch pipe of the water transmission line and the direction of water flow.

4. The method for dynamic adjustment of water supply lines based on the axis of an underground powerhouse according to claim 3, characterized in that: In step S1, the spacing includes the spacing of the water diversion system and the spacing of the tailwater system; The spacing of the water diversion system includes: the spacing between the water diversion surge tanks LJ, the spacing between the center points of the branch pipes LK, and the spacing between the intersection points of the water diversion branch pipe axis and the powerhouse axis LP; The tailwater system spacing includes: unit center point spacing LC, tailwater branch pipe center point spacing LK', tailwater lock chamber bottom tunnel spacing LL, tailwater surge chamber spacing LM; Determine the location of the control points based on the number of main pipes, the number of branch pipes and the spacing between them, and connect the control points in sequence.

5. The method for dynamic adjustment of water supply lines based on the axis of underground powerhouse according to claim 4, characterized in that: In step S1, generating a turning segment specifically includes: Control points are connected to form multiple lines, and the corner control points are screened. Adjacent corner control points are detected and screened out from the corner control points, and the adjacent corner control points are processed to generate turning segments.

6. The method for dynamic adjustment of water supply lines based on the axis of an underground powerhouse according to claim 5, characterized in that: In step S2, the plant axis adjustment parameters include: plant axis angle adjustment information and plant axis position adjustment information.

7. The method for dynamic adjustment of water supply lines based on the axis of an underground powerhouse according to claim 6, characterized in that: In step S3, strategy 1 specifically includes: Adjust the line direction of the water transmission line pipeline and the corresponding parameters of the pipeline's turning section, keep the angle between the water diversion branch pipe and the powerhouse axis unchanged, and match the powerhouse axis angle adjustment information: according to the angle formed by the direction of the powerhouse axis after adjustment and the direction of the powerhouse axis before adjustment, keep the relative relationship between the water diversion branch pipe center control point K and the intersection control point P of the water diversion branch pipe axis and the powerhouse axis unchanged, adjust the position of the pipeline's turning section H, and adjust the turning section radius and turning section angle to meet the design limits of the turning radius and turning angle requirements; the adjustment strategy of the tailwater system is the same as that of the water diversion system.

8. The method for dynamic adjustment of water supply lines based on the axis of an underground powerhouse according to claim 6, characterized in that: In step S3, strategy 2 specifically includes: Adjust the relative angles α and β between the diversion bifurcated pipe and the diversion bifurcated pipe to match the angle adjustment information of the powerhouse axis: keep the pipeline route unchanged, the turning radius and turning angle of the turning section of the pipeline also remain unchanged, and the angle θ of the bifurcation angle between the diversion bifurcated pipes remains unchanged. According to the angle formed by the direction of the powerhouse axis after adjustment and the direction of the powerhouse axis before adjustment, adjust the relative angles α and β between the diversion bifurcated pipe and the diversion bifurcated pipe, and the angle of the bifurcation angle between the diversion bifurcated pipe + the relative angle between the diversion bifurcated pipe and the diversion bifurcated pipe = 360°, α+β+θ=360°, and the relationship between the control point P of the intersection of the diversion branch axis and the powerhouse axis changes; the adjustment strategy 2 of the tailwater system is the same as that of the diversion system.

9. The method for dynamic adjustment of water supply lines based on the axis of an underground powerhouse according to claim 6, characterized in that: In step S3, strategy three specifically includes: Adjust the angle between the axis of the water diversion branch pipe and the axis of the powerhouse to match the angle adjustment information of the powerhouse axis: keep the pipeline route unchanged, keep the turning radius and turning angle of the turning section of the pipeline unchanged, and keep the relative angles α and β between the water diversion branch pipe and the water diversion branch pipe, and the bifurcation angle θ between the water diversion branch pipes unchanged. According to the angle formed by the direction of the powerhouse axis after adjustment and the direction of the powerhouse axis before adjustment, adjust the angle γ between the axis of the water diversion branch pipe and the powerhouse axis, and at the same time ensure that the angle between the axis of the water diversion branch pipe and the powerhouse axis is greater than 60° and less than 180°; the adjustment strategy three of the tailwater system is the same as that of the water diversion system.

10. The method for dynamic adjustment of water supply lines based on the axis of an underground powerhouse according to claim 6, characterized in that: In step S3, reducing the length of each flat section of the pipeline of the water transmission line specifically includes: When the plant axis needs to move upstream, the length of each flat section of the water transmission line pipeline is shortened according to the plant axis position adjustment information, the length of the tailwater tunnel is increased accordingly, and the sum of the lengths of each flat section is equal to the length of the tailwater tunnel.

11. The method for dynamic adjustment of water supply lines based on the axis of an underground powerhouse according to claim 6, characterized in that: In step S3, reducing the length of the tailrace tunnel specifically includes: When the plant axis needs to move downstream, the length of the tailwater tunnel is shortened according to the plant axis position adjustment information, and the lengths of the corresponding flat sections of the water transmission line pipeline are adjusted, and the sum of the lengths of the flat sections is made equal to the length of the tailwater tunnel.

12. A system for dynamically adjusting a water transmission line using the method for dynamically adjusting a water transmission line based on an underground powerhouse axis as claimed in any one of claims 1 to 11, characterized in that: It includes data reading and analysis module, plant axis adjustment module and water transmission line dynamic adjustment module; The data reading and analysis module is used to obtain and read the parameters of the water transmission line, building information, and plant axis adjustment parameters, and analyze and generate control points and turning sections; The powerhouse axis adjustment module is used to select and execute powerhouse angle adjustment strategies, such as shortening the length of each flat section of the water transmission line pipeline or shortening the length of the tailwater tunnel; The water transmission line dynamic adjustment module is used to dynamically adjust the water transmission line according to the adjustment of the plant axis angle and the plant axis position.

Images