Steam pipeline drain point arrangement method and system, medium and terminal
By optimizing the steam pipeline drain point location through genetic algorithms, the problem of low drain point layout efficiency in the existing technology is solved, and the stable operation of the steam pipeline and equipment safety are achieved.
Patent Information
- Application Number
- CN202510683205.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2025-09-16
AI Technical Summary
The existing layout of steam pipeline drain points relies on engineering experience, resulting in low efficiency and prone to dead zones. Condensate cannot be discharged in a timely manner, affecting steam quality and equipment safety.
A steam pipeline drain point layout method based on genetic algorithm is adopted. Combining the pipeline model and fluid movement characteristics, the drain point position is optimized through genetic algorithm, and the optimal layout scheme is generated using the drain point generation module and algorithm training module.
It improves the efficiency and accuracy of drain point layout, reduces dependence on design experience, ensures stable operation of steam pipelines, and avoids water hammer and equipment damage.
Smart Images
Figure CN120654355A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of ship pipeline design, in particular to a method for arranging drain points of steam pipelines. Background Art
[0002] During the startup, shutdown, and operation of a ship's steam system, varying degrees of heat energy loss occur within the pipes (such as through radiation, convection, and frictional resistance). As the steam flows, it gradually releases heat, causing the local temperature to drop below the saturation temperature, resulting in a phase change and the formation of condensate. If this condensate is not promptly discharged, it not only reduces steam quality and heat transfer efficiency but also forms a "water plug" under the influence of high-speed steam. When the "water plug" strikes pipe elbows, valves, or reducers, it triggers a severe water hammer phenomenon (pressure transients can reach over 10 times the normal operating pressure), seriously threatening the mechanical integrity of pipe supports, flange connections, and terminal equipment.
[0003] The proper placement of drain points in steam pipelines is crucial to the stable operation of the entire system and equipment. Traditionally, drain point placement relies heavily on engineers' field experience, employing rules of thumb such as "place one every 30-50 meters of a straight line" or "mandatory placement at low points in the pipeline or upstream of valves." This manual design approach is inefficient and prone to blind spots, resulting in long-term water accumulation in steam pipelines that cannot be drained promptly, causing pipeline corrosion and even damage to equipment and systems. Currently, there is no fast-track solution for steam pipeline drain point placement, requiring repeated trial and error, which increases system commissioning cycles. Summary of the Invention
[0004] In existing steam piping systems, drain point placement relies heavily on empirical experience, ignoring the flow characteristics of the fluid within the pipes. This can easily lead to dead zones where draining is difficult. Furthermore, some special equipment and components must be drained before being connected to the pipes, otherwise they can easily damage the equipment and affect normal operation. To improve the efficiency and rationality of steam piping drain point placement and reduce reliance on design experience, the present invention provides a method for rapidly arranging steam system drain points based on a genetic algorithm, integrating steam piping drain point placement principles with the characteristics of fluid movement within the pipes.
[0005] To achieve the above-mentioned and other related purposes, the present invention provides a method for arranging drain points in a steam pipeline, comprising the following steps:
[0006] S101. Obtain a pipeline model of a steam pipeline where drain points are required to be arranged, and extract basic information of the pipeline model, including pipe length, pipe diameter, height difference, elbows, reducers, valves, and equipment locations;
[0007] S201. Based on the basic information of the pipeline model obtained, drain points are initially arranged in all pipelines at preset step intervals. The drain points are used to drain condensate in the pipelines. The initial drain point positions are marked as a1 / a2 / a3 / a4...an. The sequence formed by a1 / a2 / a3 / a4...an is counted as a sequence a.
[0008] S202: Based on the pipeline height difference information and the fluid movement characteristics in the pipeline obtained from the pipeline model information, mark all inflection points with height differences as b1 / b2 / b3 / b4...bn, and count the sequence formed by b1 / b2 / b3 / b4...bn as a b sequence;
[0009] S203. Determine the number of main and branch pipes based on pipe diameters and tee positions, arrange drain points c1 / c2 / c3 / c4...cn at the end of the main pipe, and arrange drain points d1 / d2 / d3 / d4...dn at the end of each branch pipe; count the sequence formed by c1 / c2 / c3 / c4...cn as a c sequence, and count the sequence formed by d1 / d2 / d3 / d4...dn as a d sequence;
[0010] S204. Extract the statistical valve information, arrange drain points before the pressure reducing valve and the pneumatic control valve, and mark them as e1 / e2 / e3 / e4...en; count the sequence formed by e1 / e2 / e3 / e4...en as the e sequence.
[0011] Optionally, the following steps are also included:
[0012] S301. Compare the positions of the arrangement points a1 / a2 / a3 / a4...an with those of b1 / b2 / b3 / b4...bn. If the relative distance between a certain marked point am in sequence a and a certain marked point bm in sequence b is within a preset range, replace am with bm and bring the points into sequence a for iterative update.
[0013] S302: compare the position of the sequence a updated in S301 with e1 / e2 / e3 / e4...en. If the relative distance between a certain marker point am in the sequence a and a certain marker point em in the sequence e is within a preset range, replace am with em and bring it into the sequence a for iterative update.
[0014] S303. According to the step of S302, the updated sequence a is aligned with the sequence c and the sequence d in sequence, and the sequence a is iteratively updated to finally obtain the iteratively updated sequence a.
[0015] Optionally, the following steps are also included:
[0016] S304, changing the initial drain point position in step S201, uniformly moving the initial drain point positions in step S201 forward or backward along the pipeline by a certain distance, repeating steps S201 to S303, and obtaining multiple different a sequences;
[0017] Multiple different a sequences are substituted into the pipeline model to simulate the flow in the pipe. A genetic algorithm is introduced, and the system drainage capacity under a specific steam drainage point scheme is used as the fitness function. An iterative calculation is performed to finally obtain the optimal steam pipeline drainage point layout scheme.
[0018] Optionally, in step S304, a plurality of different a sequences form an initial data group; based on the initial data group, each a sequence is abstracted into a chromosome, and each gene value in the chromosome represents a layout point in the a sequence; an initial population is randomly generated, the initial population includes a plurality of chromosomes, a fitness function is defined, and the fitness of each chromosome in the initial population is calculated;
[0019] Individuals with high fitness in the initial population are selected as parent chromosomes. Single-point genes of the selected parent chromosomes are crossovered to generate daughter chromosomes. The positions of different a sequences are randomly matched through crossover. Mutation is then performed to randomly adjust the values corresponding to the single-point genes in the daughter chromosomes, thereby randomly changing the positions of the arrangement points along the pipeline within a certain range.
[0020] The selection, crossover and mutation processes are repeated until the predetermined number of iterations is reached or the stopping condition is met, and the individuals with higher fitness values are finally retained as the optimal steam pipeline drain point layout scheme.
[0021] Optionally, the fitness function is defined as: f(x)=α1x1+α2x2, where α1 and α2 are weight factors, and x2 and x1 are the hydrophobic amount and the number of hydrophobic points, respectively.
[0022] Optionally, in step S201, the preset step length is 30-50 meters.
[0023] The present invention also provides a steam pipeline drain point arrangement system, which is used to implement the steam pipeline drain point arrangement method.
[0024] Optionally, the steam pipeline drain point arrangement system includes:
[0025] The model data extraction module is used to process the pipeline model of the steam pipeline and extract basic information from the pipeline model, including pipe length, pipe diameter, height difference, elbows, reducers, valves, and equipment locations;
[0026] The drainage point generation module is used to generate a sequence consisting of multiple drainage points according to the basic information of the pipeline model;
[0027] The algorithm training module is used to obtain the optimal steam pipeline drain point through a genetic algorithm based on multiple different a sequences generated.
[0028] The present invention also provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method for arranging steam pipeline drain points is implemented.
[0029] The present invention also provides a terminal, comprising a processor and a memory;
[0030] The memory is used to store computer programs;
[0031] The processor is connected to the memory and is used to execute the computer program stored in the memory so that the terminal executes the steam pipeline drain point arrangement method.
[0032] As described above, the present invention provides a method, system, medium and terminal for arranging drain points of steam pipelines. The arrangement method first extracts basic information from the pipeline model of the steam pipeline, then preliminarily sets the drain points according to various basic information of the pipeline model, and then merges the similar drain points according to the corresponding arrangement principles to obtain the final drain point positions. In addition, a genetic algorithm is used to cross-combine different arrangement schemes, thereby fully considering various situations when the drain points are in different positions and obtaining the optimal drain point arrangement scheme. The present invention is aimed at the draining needs of the steam pipeline, and through the drain point arrangement principles and priorities of the steam pipeline, the drain points are characterized by a series of data sets. It is convenient and simple, and can be optimized according to the system draining capacity and the number of drain points, thereby improving the efficiency and accuracy of the drain point arrangement. Therefore, the present invention effectively overcomes the various shortcomings in the prior art and has industrial utilization value. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 Shown is a flow chart of the steam pipeline drain point arrangement method of the present invention.
[0034] Figure 2 Shown is a schematic diagram of the structure of the terminal in the present invention.
[0035] Figure 3 Shown is a simplified schematic diagram of the arrangement of drain points in a steam pipeline according to an embodiment of the present invention.
[0036] Component number description
[0037] Processor 31; memory 32. DETAILED DESCRIPTION
[0038] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.
[0039] For example, when describing the embodiments of the present invention, cross-sectional views of device structures may be partially enlarged to scale for ease of explanation. Furthermore, these schematic views are merely illustrative and should not limit the scope of the present invention. Furthermore, in actual manufacturing, three-dimensional dimensions, including length, width, and depth, should be included.
[0040] For ease of description, spatially relative terms such as "under," "below," "below," "below," "above," and "on" may be used herein to describe the relationship of one element or feature to other elements or features shown in the drawings. It will be understood that these spatially relative terms are intended to encompass orientations of the device in use or operation in addition to the orientation depicted in the drawings. Additionally, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may be present. As used herein, "between" is inclusive of both endpoints.
[0041] In the context of the present application, a structure described as a first feature being "above" a second feature may include embodiments where the first and second features are formed in direct contact, and may also include embodiments where an additional feature is formed between the first and second features, such that the first and second features may not be in direct contact.
[0042] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.
[0043] like Figure 1 As shown, the present invention provides a method for arranging drain points in a steam pipeline, comprising the following steps:
[0044] S101. Obtain a pipeline model of the steam pipeline where the drain point is to be arranged, and extract basic information of the pipeline model, including pipe length, pipe diameter, height difference, elbows, reducers, valves, and locations of important equipment (such as steam turbines).
[0045] S201. Based on the acquired basic information of the pipeline model (primarily the pipe length information), drain points are initially arranged at intervals of 30 to 50 meters in all pipelines to effectively drain condensate from the pipelines. The initial drain point positions are marked as a1 / a2 / a3 / a4...an. In this step, the sequence formed by a1 / a2 / a3 / a4...an is counted as the a sequence.
[0046] S202: Based on the pipeline height difference information and the fluid movement characteristics in the pipeline obtained from the pipeline model information, all inflection point positions (increased height directions) with height differences are marked as b1 / b2 / b3 / b4...bn. In this step, the sequence formed by b1 / b2 / b3 / b4...bn is counted as a b sequence;
[0047] S203. Determine the number of main and branch pipes based on pipe diameter and tee position, arrange drain points c1 / c2 / c3 / c4...cn at the end of the main pipe, and arrange drain points d1 / d2 / d3 / d4...dn at the end of each branch pipe. In this step, the sequence formed by c1 / c2 / c3 / c4...cn is counted as a c sequence, and the sequence formed by d1 / d2 / d3 / d4...dn is counted as a d sequence.
[0048] S204, extracting the statistical valve information, arranging drain points before the pressure reducing valve and the pneumatic control valve, and marking them as e1 / e2 / e3 / e4...en; in this step, the sequence formed by e1 / e2 / e3 / e4...en is counted as the e sequence;
[0049] S301. Compare the positions of the arrangement points a1 / a2 / a3 / a4...an with those of b1 / b2 / b3 / b4...bn. If the relative distance between a marked point am in sequence a and a marked point bm in sequence b is within a preset range (e.g., 1 meter), replace am with bm and bring the points into sequence a for iterative update.
[0050] S302: compare the position of the sequence a updated in S301 with e1 / e2 / e3 / e4...en. If the relative distance between a certain marker point am in the sequence a and a certain marker point em in the sequence e is within a preset range, replace am with em and bring it into the sequence a for iterative update.
[0051] S303. According to step S302, the updated sequence a is aligned with the sequence c and the sequence d in sequence, and the sequence a is iteratively updated.
[0052] Specifically, the updated a sequence in S302 is compared with the c sequence in position. If the relative distance between a certain marker point am in the a sequence and a certain marker point cm in the c sequence is within a preset range, then cm is used to replace am and the sequence is brought into the a sequence for iterative update. The updated a sequence in S302 is compared with the d sequence in position. If the relative distance between a certain marker point am in the a sequence and a certain marker point dm in the d sequence is within a preset range, then dm is used to replace am and the sequence is brought into the a sequence for iterative update, and finally the iteratively updated a sequence is obtained.
[0053] S304: Change the initial drain point positions in step S201 by uniformly moving each initial drain point position forward or backward along the pipeline by a certain distance (e.g., 0.5m or 1m). Repeat steps S201 to S303 to obtain multiple different a sequences, thereby changing the initial drain point positions in the pipeline and obtaining different layout schemes. This fully considers the various situations when the drain points are located at different positions and improves the credibility of the results. Substitute the multiple different a sequences into the pipeline model, perform in-pipe flow simulation, introduce a genetic algorithm, use the system drain capacity under a specific steam drain point scheme as the fitness function, and perform iterative calculations to ultimately obtain the optimal steam pipeline drain point rapid layout scheme.
[0054] Specifically, multiple different a sequences form an initial data group. Based on the initial data group, each a sequence is abstracted into a chromosome, where each gene value in the chromosome represents a layout point in the a sequence. An initial population is randomly generated, including multiple chromosomes. A fitness function is defined, and the fitness of each chromosome in the initial population is calculated. As an example, the fitness function can be defined as: f(x) = α1x1 + α2x2, where α1 and α2 are weighting factors, and x2 and x1 are the hydrophobicity and the number of hydrophobic points, respectively. The number of hydrophobic points x1 is the number of individuals in the a sequence, and the hydrophobicity x2 can be obtained through in-pipe flow simulation. By simulating the flow process of steam in the pipe, the corresponding hydrophobicity is obtained.
[0055] Individuals with high fitness in the initial population are selected as parent chromosomes; single-point genes of the selected parent chromosomes are cross-exchanged to generate daughter chromosomes, and the position points in different a sequences are randomly matched through cross-exchange; then mutation is performed to randomly adjust the values corresponding to the single-point genes in the daughter chromosomes, that is, the positions of the arrangement points are randomly changed within a certain range along the pipeline, thereby introducing new values and enhancing diversity.
[0056] The selection, crossover, and mutation process is repeated until a predetermined number of iterations is reached or a stopping condition is met. Ultimately, the individuals with the highest fitness values are retained as the optimal steam pipeline drain point layout. The specific code implementation of the genetic algorithm is well documented in the prior art and will not be further elaborated here.
[0057] The present invention also provides a steam pipeline drain point arrangement system, which is used to implement the above-mentioned steam pipeline drain point arrangement method, and the steam pipeline drain point arrangement system includes:
[0058] The model data extraction module is used to process the pipeline model of the steam pipeline and extract basic information from the pipeline model, including pipe length, pipe diameter, height difference, elbows, reducers, valves, and the location of important equipment (steam turbines, etc.).
[0059] The drain point generation module is used to generate a sequence consisting of multiple drain points based on the basic information of the pipeline model.
[0060] The algorithm training module is used to obtain the optimal steam pipeline drain point through a genetic algorithm based on multiple different a sequences generated.
[0061] It should be noted that the division of the various modules in the above system is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into a single physical entity, or physically separated. Furthermore, these modules can be implemented entirely in the form of software called by processing elements, entirely in the form of hardware, or partially in the form of software called by processing elements, while others can be implemented in the form of hardware.
[0062] The present invention also provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned steam pipeline drain point arrangement method. The storage medium may include, but is not limited to, a floppy disk, an optical disk, a CD-ROM (CD-Read-Only Memory), a magneto-optical disk, a ROM (Read-Only Memory), a RAM (Random Access Memory), an EPROM (Erasable Programmable Read-Only Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), a magnetic card or an optical card, a flash memory, or other types of media / machine-readable media suitable for storing machine-executable instructions.
[0063] Furthermore, the storage medium may be a product that is not connected to a computer device, or a component that is connected to a computer device for use.
[0064] like Figure 2 As shown, the present invention further provides a terminal, which includes a processor 31 and a memory 32.
[0065] The memory 32 is used to store computer programs; preferably, the memory 32 includes: ROM, RAM, disk, USB flash drive, memory card or optical disk, etc., various media that can store program codes.
[0066] The processor 31 is connected to the memory 32 and is used to execute the computer program stored in the memory 32 so that the terminal executes the above-mentioned steam pipeline drain point arrangement method.
[0067] Preferably, the processor 31 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
[0068] Furthermore, the number of the memory 32 may be one or more, and the number of the processor 31 may also be one or more. Figure 2 Take one as an example.
[0069] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings and examples, thereby enabling a full understanding and implementation of the present invention on how to apply technical means to solve technical problems and achieve technical effects.
[0070] Example 1
[0071] This embodiment takes a certain section of steam pipeline as an example. First, according to S101, a model of the steam pipeline to be arranged is obtained. Figure 3 As shown, the total length of the pipeline is 100m, which includes 1 main pipeline and 2 branch pipelines. The fluid in the steam pipeline enters from the main pipeline and flows out from the two branch pipelines. The pipeline contains three valves / a tee / five elbows / a reducer. The branch pipeline outlets are connected to two steam turbine equipment respectively.
[0072] Furthermore, preliminary drainage points were arranged at 30m intervals along the pipeline according to S201;
[0073] Further, according to S202, drainage points are arranged at locations with height differences, such as Figure 3 As shown in the orange circle;
[0074] Further, according to S203, drain points are arranged at the ends of the two branch pipes, such as Figure 3 As shown in red circle;
[0075] Furthermore, according to S204, drain points are arranged before the three valves, such as Figure 3 As shown in the blue circle;
[0076] Furthermore, according to S301, the preliminary hydrophobic points are compared with the hydrophobic points marked by orange circles and an iterative correction is performed;
[0077] Furthermore, according to S302 , the hydrophobic points after the first correction are compared with the hydrophobic points marked with blue circles, and a second iterative correction is performed;
[0078] Finally, in step S303, the updated drain points are combined with the drain points circled in red to obtain the final layout. The arranged drain points are then introduced into the model for simulation calculations. The rationality of the drain point layout is evaluated based on the flow pattern within the pipe.
[0079] It should be noted that S201 / S202 / S203 / S204 can be further increased according to the pipeline drainage requirements and are not limited to the four conditions listed.
[0080] It should be noted that for different steam pipeline drain point layout schemes, the total number of drain points is used as input data, and the system's drain capacity f(x) is used as the fitness function for iterative calculations: f(x) = α1x1 + α2x2, where α1 and α2 are weight factors, x2 and x1 are the drain amount and the number of drain points, respectively. Specifically, the genetic algorithm population size is set to 20, the encoding length is 5, the crossover probability is 0.6, the mutation probability is 0.001, the error threshold value is between 0.0005 and 0.005, and the maximum number of iterations is 1000. Individuals are selected and subjected to crossover and mutation operations. The fitness value is calculated and the optimal solution is sought. The optimal solution is decoded to obtain the corresponding optimal individual, and finally a steam pipeline drain point layout scheme based on the genetic algorithm is obtained.
[0081] In summary, the present invention provides a method, system, medium and terminal for arranging drain points of steam pipelines. The arrangement method first extracts basic information from the pipeline model of the steam pipeline, then preliminarily sets the drain points according to various basic information of the pipeline model, and then merges similar drain points according to the corresponding arrangement principles to obtain the final drain point positions. In addition, a genetic algorithm is used to cross-combine different arrangement schemes, thereby fully considering various situations when the drain points are in different positions and obtaining the optimal drain point arrangement scheme. The present invention is aimed at the draining needs of the steam pipeline, and through the drain point arrangement principles and priorities of the steam pipeline, the drain points are characterized by a series of data sets. It is convenient and simple, and can be optimized according to the system draining capacity and the number of drain points, thereby improving the efficiency and accuracy of the drain point arrangement. Therefore, the present invention effectively overcomes the various shortcomings in the prior art and has industrial utilization value.
[0082] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.
Claims
1. A method for arranging drain points in a steam pipeline, characterized in that: The steps include: S101. Obtain a pipeline model of a steam pipeline where drain points are required to be arranged, and extract basic information of the pipeline model, including pipe length, pipe diameter, height difference, elbows, reducers, valves, and equipment locations; S201. Based on the basic information of the pipeline model obtained, drain points are initially arranged in all pipelines at preset step intervals. The drain points are used to drain condensate in the pipelines. The initial drain point positions are marked as a1 / a2 / a3 / a4...an. The sequence formed by a1 / a2 / a3 / a4...an is counted as a sequence a. S202: Based on the pipeline height difference information and the fluid movement characteristics in the pipeline obtained from the pipeline model information, mark all inflection points with height differences as b1 / b2 / b3 / b4...bn, and count the sequence formed by b1 / b2 / b3 / b4...bn as a b sequence; S203. Determine the number of main and branch pipes based on pipe diameters and tee positions, arrange drain points c1 / c2 / c3 / c4...cn at the end of the main pipe, and arrange drain points d1 / d2 / d3 / d4...dn at the end of each branch pipe; count the sequence formed by c1 / c2 / c3 / c4...cn as a c sequence, and count the sequence formed by d1 / d2 / d3 / d4...dn as a d sequence; S204. Extract the statistical valve information, arrange drain points before the pressure reducing valve and the pneumatic control valve, and mark them as e1 / e2 / e3 / e4...en; count the sequence formed by e1 / e2 / e3 / e4...en as the e sequence.
2. The method for arranging steam pipeline drain points according to claim 1, characterized in that: The following steps are also included: S301. Compare the positions of the arrangement points a1 / a2 / a3 / a4...an with those of b1 / b2 / b3 / b4...bn. If the relative distance between a certain marked point am in sequence a and a certain marked point bm in sequence b is within a preset range, replace am with bm and bring the points into sequence a for iterative update. S302: compare the position of the sequence a updated in S301 with e1 / e2 / e3 / e4...en. If the relative distance between a certain marker point am in the sequence a and a certain marker point em in the sequence e is within a preset range, replace am with em and bring it into the sequence a for iterative update. S303. According to the step of S302, the updated sequence a is aligned with the sequence c and the sequence d in sequence, and the sequence a is iteratively updated to finally obtain the iteratively updated sequence a.
3. The method for arranging steam pipeline drain points according to claim 2, characterized in that: The following steps are also included: S304, changing the initial drain point position in step S201, uniformly moving the initial drain point positions in step S201 forward or backward along the pipeline by a certain distance, repeating steps S201 to S303, and obtaining multiple different a sequences; Multiple different a sequences are substituted into the pipeline model to simulate the flow in the pipe. A genetic algorithm is introduced, and the system drainage capacity under a specific steam drainage point scheme is used as the fitness function. An iterative calculation is performed to finally obtain the optimal steam pipeline drainage point layout scheme.
4. The method for arranging steam pipeline drain points according to claim 3, characterized in that: In step S304, multiple different a sequences form an initial data group; based on the initial data group, each a sequence is abstracted into a chromosome, and each gene value in the chromosome represents a layout point in the a sequence; an initial population is randomly generated, the initial population includes multiple chromosomes, a fitness function is defined, and the fitness of each chromosome in the initial population is calculated; Individuals with high fitness in the initial population are selected as parent chromosomes. Single-point genes of the selected parent chromosomes are crossovered to generate daughter chromosomes. The positions of different a sequences are randomly matched through crossover. Mutation is then performed to randomly adjust the values corresponding to the single-point genes in the daughter chromosomes, thereby randomly changing the positions of the arrangement points along the pipeline within a certain range. The selection, crossover and mutation processes are repeated until the predetermined number of iterations is reached or the stopping condition is met, and the individuals with higher fitness values are finally retained as the optimal steam pipeline drain point layout scheme.
5. The method for arranging drain points in a steam pipeline according to claim 3, characterized in that: The fitness function is defined as: f(x) = α1x1 + α2x2, where α1 and α2 are weight factors, x2 and x1 are the hydrophobicity and the number of hydrophobic points, respectively.
6. The method for arranging drain points in a steam pipeline according to claim 1, characterized in that: In step S201, the preset step length is 30-50 meters.
7. A steam pipeline drain point arrangement system, characterized by: The steam pipeline drain point arrangement system is used to implement the steam pipeline drain point arrangement method described in any one of claims 3-6.
8. The steam pipeline drain point arrangement system according to claim 7, characterized in that: include: The model data extraction module is used to process the pipeline model of the steam pipeline and extract basic information from the pipeline model, including pipe length, pipe diameter, height difference, elbows, reducers, valves, and equipment locations; The drainage point generation module is used to generate a sequence consisting of multiple drainage points according to the basic information of the pipeline model; The algorithm training module is used to obtain the optimal steam pipeline drain point through a genetic algorithm based on multiple different a sequences generated.
9. A storage medium, characterized in that: The storage medium stores a computer program, which, when executed by a processor, implements the method for arranging steam pipeline drain points according to any one of claims 3 to 6.
10. A terminal, characterized in that: The terminal includes a processor and a memory; The memory is used to store computer programs; The processor is connected to the memory and is used to execute the computer program stored in the memory, so that the terminal executes the steam pipeline drain point arrangement method according to any one of claims 3-6.