Exhaust system generation method, device and equipment based on power transformation and distribution room and storage medium

Abstract

The invention relates to the technical field of exhaust system design, and discloses an exhaust system generation method, device and equipment based on a power transformation and distribution room and a storage medium, which are used for improving the accuracy of exhaust system design. The exhaust system generation method based on the power transformation and distribution room comprises the steps that target structure model data and operation parameters and spatial data of the power transformation and distribution room are obtained; according to the spatial data of the power transformation and distribution room, the exhaust air rate needed by the power transformation and distribution room is calculated; judging whether an exhaust machine room exists or not based on the target structure model data; if the exhaust machine room exists, determining an air pipe path based on the position of the exhaust machine room; if the exhaust machine room does not exist, determining an air pipe path based on the power transformation and distribution room and the air shaft in the target structure model data; and generating an exhaust system based on the exhaust air rate and the air pipe path.

Description

Technical Field

[0001] This invention relates to the field of ventilation system design technology, and in particular to a method, apparatus, equipment and storage medium for generating a ventilation system based on a substation. Background Technology

[0002] In modern buildings and industrial facilities, substations serve as crucial locations for power distribution and conversion, and their stable operation is paramount. Transformers and other electrical equipment within substations generate significant heat during operation. If this heat is not dissipated effectively and promptly, the indoor temperature will rise continuously. High temperatures not only accelerate the aging of electrical equipment and shorten its lifespan but can also lead to equipment malfunctions and even fires, severely impacting the stability and security of the power supply. Therefore, designing a reasonable and efficient ventilation system for substations is of significant practical importance.

[0003] Currently, traditional methods for designing exhaust systems in power distribution rooms often rely on the experience of designers and simple estimations. During the design process, the calculation of exhaust volume lacks precision, and the layout of the exhaust system depends on manual experience. Therefore, the exhaust system design often fails to meet actual conditions. Traditional methods are not flexible enough in utilizing the exhaust system and fail to optimize the design based on the actual building structure, resulting in low design accuracy and an inability to fully utilize the advantages of the exhaust system, thus leading to reduced exhaust efficiency. Summary of the Invention

[0004] This invention provides a method, apparatus, equipment, and storage medium for generating an exhaust system based on a substation, in order to solve the problem that the exhaust system is not flexible enough in terms of utilization and thus has low exhaust efficiency due to reliance on human experience in the design of the existing technology.

[0005] The first aspect of this invention provides a method for generating an exhaust system based on a substation, comprising: acquiring target structural model data, as well as operating parameters and spatial data of the substation; calculating the required exhaust volume of the substation based on the operating parameters or spatial data of the substation; determining whether an exhaust fan room exists based on the target structural model data; if an exhaust fan room exists, determining the duct path based on the location of the exhaust fan room; if no exhaust fan room exists, determining the duct path based on the substation and ventilation shaft in the target structural model data; and generating an exhaust system based on the exhaust volume and the duct path.

[0006] In one feasible implementation, the step of calculating the required exhaust volume of the substation based on the operating parameters or spatial data of the substation includes: if the residual heat elimination method is used, the required exhaust volume of the substation is calculated based on the transformer power and the indoor and outdoor temperature difference; if the air change rate method is used, the required exhaust volume of the substation is calculated based on the preset air change rate and the spatial data of the substation.

[0007] In one feasible implementation, determining whether an exhaust fan room exists based on the target structural model data includes: traversing the target structural model data to find whether a room identified as an exhaust fan room exists; if a room identified as an exhaust fan room exists, then it is determined that an exhaust fan room exists; if no room identified as an exhaust fan room exists, then it is determined that no exhaust fan room exists.

[0008] In one feasible implementation, determining the duct path based on the substation and the ventilation shaft in the target structure model data includes: determining at least one candidate path between the substation and its nearest ventilation shaft based on the target structure data; calculating the path obstacle score for each candidate path; and selecting the candidate path with the lowest path obstacle score as the duct path.

[0009] In one feasible implementation, the calculation of the path obstacle score for each candidate path includes: obtaining the path length, number of turns, and number of walls to be passed for each candidate path; and calculating the path obstacle score for each candidate path based on preset parameter weights, the path length, number of turns, and number of walls to be passed for each candidate path.

[0010] In one feasible implementation, generating an exhaust system based on the exhaust volume and the duct path includes: selecting a corresponding fan model and quantity based on the exhaust volume; arranging ducts, duct accessories, and air outlets on the duct path; and connecting the components based on the determined fan data and the duct path after the components are arranged to form an exhaust system.

[0011] In one feasible implementation, selecting the corresponding fan model and quantity based on the exhaust volume includes: matching the corresponding fan model in a preset fan selection table according to the exhaust volume; and determining the required number of fans based on the size and requirements of the substation.

[0012] A second aspect of the present invention provides an apparatus for generating an exhaust system based on a substation, comprising: an acquisition module for acquiring target structural model data, as well as operating parameters and spatial data of the substation; a calculation module for calculating the required exhaust volume of the substation based on the operating parameters or spatial data of the substation; a judgment module for determining whether an exhaust fan room exists based on the target structural model data; a first determination module for determining a duct path based on the location of the exhaust fan room if an exhaust fan room exists; a second determination module for determining a duct path based on the substation and ventilation shaft in the target structural model data if no exhaust fan room exists; and a generation module for generating an exhaust system based on the exhaust volume and the duct path.

[0013] In one feasible implementation, the calculation module is specifically used to: if the residual heat elimination method is adopted, calculate the required exhaust volume of the substation based on the transformer power and the indoor-outdoor temperature difference; if the air change rate method is adopted, calculate the required exhaust volume of the substation based on the preset air change rate and the space data of the substation.

[0014] In one feasible implementation, the judgment module is specifically used to: traverse the target structure model data and search for whether there is a room identified as an exhaust fan room; if there is a room identified as an exhaust fan room, then it is determined that an exhaust fan room exists; if there is no room identified as an exhaust fan room, then it is determined that no exhaust fan room exists.

[0015] In one feasible implementation, the second determining module includes: a determining unit, used to determine at least one candidate path between the substation and its nearest ventilation shaft based on the target structure data; a calculation unit, used to calculate the path obstacle score of each candidate path; and a first selection unit, used to select the path with the lowest path obstacle score as the ventilation duct path.

[0016] In one feasible implementation, the calculation unit is specifically used to: obtain the path length, number of turns, and number of walls to be passed for each candidate path; and calculate the path obstacle score for each candidate path based on preset parameter weights, the path length, number of turns, and number of walls to be passed for each candidate path.

[0017] In one feasible implementation, the generation module includes: a second selection unit for selecting the corresponding fan model and quantity based on the exhaust volume; an arrangement unit for arranging ducts, duct accessories, and air outlets on the duct path; and a connection unit for connecting the components based on the determined fan data and the duct path after the components are arranged, so as to form an exhaust system.

[0018] In one feasible implementation, the selection unit is specifically used to: match the corresponding fan model in a preset fan selection table according to the exhaust volume; and determine the required number of fans based on the size and requirements of the substation.

[0019] A third aspect of the present invention provides an electronic device, comprising: a memory and at least one processor, wherein the memory stores instructions; the at least one processor invokes the instructions in the memory to cause the electronic device to execute the above-described method for generating an exhaust system based on a substation.

[0020] A fourth aspect of the present invention provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the above-described method for generating an exhaust system based on a substation.

[0021] The technical solution provided by this invention involves acquiring target structural model data and spatial data of a power distribution room; calculating the required exhaust volume of the power distribution room based on the spatial data of the power distribution room; determining whether an exhaust fan room exists based on the target structural model data; if an exhaust fan room exists, determining the duct path based on the location of the exhaust fan room; if no exhaust fan room exists, determining the duct path based on the power distribution room and ventilation shaft in the target structural model data; and generating an exhaust system based on the exhaust volume and the duct path. In this embodiment of the invention, acquiring the spatial data of the power distribution room to calculate the required exhaust volume ensures that the exhaust volume accurately matches the actual heat dissipation requirements. Determining the existence of an exhaust fan room based on the target structural model data and rationally determining the duct path reduces unnecessary obstacles and lowers the resistance of the duct system. Finally, generating an exhaust system based on the calculated exhaust volume and optimized duct path achieves multi-stage synergy, avoids errors in manual design, effectively improves the accuracy of exhaust system generation, and thus enhances the exhaust efficiency of the exhaust system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an embodiment of the method for generating an exhaust system based on a substation in this invention. Figure 2 This is a schematic diagram of another embodiment of the method for generating an exhaust system based on a substation in this invention; Figure 3 This is a schematic diagram of an embodiment of the ventilation system generating device based on a substation in this invention. Figure 4 This is a schematic diagram of another embodiment of the ventilation system generating device based on a substation in this invention; Figure 5 This is a schematic diagram of one embodiment of the electronic device in this invention. Detailed Implementation

[0023] This invention provides a method, apparatus, equipment, and storage medium for generating an exhaust system based on a power distribution room. By calculating a reasonable exhaust volume and flexibly planning the duct path according to the structural model, a suitable exhaust system is generated, effectively improving exhaust efficiency.

[0024] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" or "having" and any variations thereof are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] It is understood that the executing entity of this invention can be a ventilation system generating device based on a substation, or it can be a terminal or a server; no specific limitation is made here. This embodiment of the invention will be described using a server as an example.

[0026] For ease of understanding, the specific process of the embodiments of the present invention is described below. Please refer to [link / reference]. Figure 1 One embodiment of the method for generating an exhaust system based on a substation in this invention includes: 101. Obtain the target structural model data, as well as the operating parameters and spatial data of the substation; By calling the standard API interface of BIM design software, civil engineering and structural data are extracted from the building model to obtain target structural model data. This target structural model data includes, but is not limited to, room names, room spatial attributes, structural column locations and dimensions, geometric information of building and structural walls, and beam and slab height parameters. Simultaneously, key operating parameters of the substation are acquired, such as transformer rated power, preset air changes per hour, and substation spatial data, including net room area, floor height, and beam clearance. To ensure data input accuracy, a pre-defined standard room name mapping table is provided. This table covers various naming methods for substations, exhaust fan rooms, and ventilation shafts. For example, different names such as "community substation," "public substation," and "substation" marked in the user model are uniformly mapped to the standard name "substation," and "smoke exhaust fan room" and "makeup air fan room" are mapped to "exhaust fan room" or "supply air fan room," thus achieving compatibility handling for different naming methods of the same functional room in different projects.

[0027] 102. Calculate the required exhaust volume for the substation based on its operating parameters or spatial data. The exhaust volume is calculated using the waste heat removal method. Specifically, in a power distribution room, various electrical equipment continuously releases heat during operation. First, the rated power of all equipment must be calculated in detail, and combined with the actual load rate during operation, the total heat generation power of the equipment is estimated. Simultaneously, the outdoor air temperature of the area where the power distribution room is located, as well as the indoor air temperature required by the design, must be accurately measured or obtained. According to the basic principle of heat transfer, heat diffuses from high-temperature areas to low-temperature areas. The role of the exhaust system is to remove the heat generated by the indoor equipment through airflow. The exhaust volume is calculated using the formula: exhaust volume equals the equipment's heat generation power divided by the product of air specific heat capacity, air density, indoor-outdoor temperature difference, and a safety factor. Here, air specific heat capacity and density are physical property parameters of air, while the safety factor is set to cope with various uncertainties that may occur during actual operation, such as fluctuations in equipment heat generation and changes in outdoor temperature. The exhaust volume calculated using this method ensures that heat in the power distribution room is removed in a timely manner, maintaining the indoor temperature within the design range and guaranteeing the normal operation of the equipment.

[0028] The calculation formula is:

[0029] Wherein, G1 represents the exhaust volume, in m³ / s. 3 / h, Q represents the equipment's heating power in W, and c represents the specific heat capacity in J / (kg·℃). This indicates air density, expressed in kg / m³. 3 , The indoor and outdoor temperature difference is represented by K, which is a dimensionless value and typically ranges from 1.1 to 1.3.

[0030] The exhaust volume is calculated using the air change rate method. Specifically, the length, width, and height of the substation are obtained to calculate its volume, which reflects the total amount of air inside the substation and is a crucial basis for determining the exhaust volume. Then, based on factors such as the heat generated by the equipment, the heat generated by personnel activities, and indoor air quality requirements, and referring to relevant design specifications and empirical data, a suitable air change rate is determined. The air change rate represents the number of times the indoor air needs to be completely replaced per hour, comprehensively considering heat dissipation and air quality maintenance. Finally, multiplying the substation's volume by the air change rate yields the required exhaust volume. For example, if the substation is large and the equipment generates a lot of heat, a higher air change rate is needed to ensure timely air renewal and effective heat removal; conversely, if the substation is small and the equipment generates less heat, the air change rate can be appropriately reduced.

[0031] The calculation formula is:

[0032] Wherein, G2 represents the exhaust volume, in m³ / s. 3 / h, n represents the number of air changes per hour, and V represents the volume of the substation space in cubic meters. 3 .

[0033] Furthermore, the calculation results of the two can be compared, and the larger value can be selected as the final exhaust volume.

[0034] 103. Determine whether an exhaust fan room exists based on the target structure model data; Within the target structural model data, search for the existence of a room specifically designed to house exhaust ventilation equipment. Exhaust ventilation rooms typically have specific spatial layouts and structural characteristics. For example, their location may be close to a power distribution room or ventilation shaft to facilitate ductwork connections and the arrangement of the ventilation system. The room's size and height must meet the installation and operational requirements of the exhaust ventilation equipment. Furthermore, the design of the room's ventilation, heat dissipation, and sound insulation must be considered. If a spatial area matching the characteristics of an exhaust ventilation room is found in the target structural model data, then the existence of an exhaust ventilation room can be confirmed; conversely, if no such area is found, it can be determined that an exhaust ventilation room does not exist.

[0035] 104. If an exhaust fan room exists, the duct route shall be determined based on the location of the exhaust fan room; Based on the target structural model data, and according to the building's structural layout and ventilation requirements, the optimal duct path is planned from the power distribution room to the exhaust fan room, and then from the exhaust fan room to the ventilation shaft.

[0036] The target structural model data is transformed into a 3D spatial topology graph. The substation, exhaust fan room, and ventilation shaft are designated as the starting point, intermediate node, and ending point, respectively. Obstacles such as walls and columns within the building are abstracted as impassable edges in the graph, while potential ventilation spaces are designated as traversable edges and assigned corresponding weights. These weights comprehensively consider factors such as spatial distance, airflow resistance, and construction difficulty. For example, narrow spaces and numerous bends result in greater resistance and construction difficulty, thus increasing the weight accordingly. Using shortest path algorithms such as Dijkstra's algorithm, a path from the substation to the exhaust fan room, and then from the exhaust fan room to the ventilation shaft, is searched in the topology graph to minimize the total path weight, thus obtaining the preliminary optimal path. Then, 3D spatial optimization techniques are used to fine-tune the preliminary path, checking for potential conflicts with other equipment or structures within the building. If conflicts exist, the path direction is adjusted to ensure that the ductwork installation does not affect the normal use of the building and meets ventilation requirements, thereby planning the final optimal ductwork path.

[0037] 105. If there is no exhaust fan room, the duct path shall be determined based on the power distribution room and ventilation shaft in the target structural model data; The target structural model data is transformed into a 3D spatial topology map. The substation and ventilation shaft are marked as the starting and ending points, respectively. Solid structures such as walls, beams, and columns within the building are designated as impassable areas. The remaining passable spaces are divided according to different area characteristics and assigned corresponding resistance coefficients, such as channel width and the presence of other pipeline interference. Using a genetic algorithm, with multiple objectives such as shortest duct path, fewest bends, avoidance of important equipment areas, and lowest construction cost as optimization directions, path schemes are continuously generated and filtered in the topology model. During the iteration process, the path is continuously optimized through operations such as intersection and mutation, while collision detection technology is used to check for conflicts between the path and the building structure in real time. Finally, an optimal duct path is obtained that meets ventilation requirements while taking into account construction feasibility and economy, ensuring that the duct can be efficiently and safely connected from the substation to the ventilation shaft.

[0038] 106. Generate an exhaust system based on exhaust volume and duct path.

[0039] The ductwork path is precisely drawn in 3D space, and collision detection is performed using the building structure model to adjust the ductwork routing and elevation in a timely manner to avoid conflicts. Based on parameters such as exhaust volume, ductwork length, and number of bends, the software's built-in database is used to intelligently select fans, ensuring that the fan airflow and pressure match the system requirements. At the same time, based on the duct size and airflow requirements, suitable air outlets, dampers, and other accessories are automatically matched and rationally arranged on the ductwork path to ensure uniform airflow distribution. Finally, through the collaborative functions of BIM, electrical, structural, and other professional models are integrated to check for issues such as pipeline intersections between different disciplines, optimize the exhaust system layout, and generate a complete exhaust system plan containing detailed information such as equipment selection, ductwork routing, and accessory placement.

[0040] In this embodiment of the invention, the required exhaust volume is calculated by acquiring the space data of the power distribution room to ensure that the exhaust volume is accurately matched with the actual heat dissipation demand. The existence of the exhaust fan room is determined based on the target structural model data, and the duct path is reasonably determined to reduce unnecessary obstacles in the path and reduce the resistance of the duct system. Finally, the exhaust system is generated based on the calculated exhaust volume and the optimized duct path, achieving multi-stage synergy, avoiding errors in manual design, effectively improving the accuracy of the exhaust system design, and thus improving the exhaust efficiency of the exhaust system.

[0041] Please see Figure 2 Another embodiment of the method for generating an exhaust system based on a substation in this invention includes: 201. Obtain the target structural model data, as well as the operating parameters and spatial data of the substation; The execution process of step 201 is similar to that of step 101 above, and will not be described again here.

[0042] 202. Calculate the required exhaust volume for the substation based on its operating parameters or spatial data; If the residual heat removal method is used, the required exhaust volume of the substation is calculated based on the transformer power and the temperature difference between indoors and outdoors; if the air change rate method is used, the required exhaust volume of the substation is calculated based on the preset air change rate and the space data of the substation.

[0043] Transformer power refers to the rated power of the transformer. The heat generated during transformer operation is calculated based on the rated power. The indoor and outdoor temperature difference is calculated using the preset indoor exhaust design temperature and supply air temperature. The required exhaust volume of the substation is calculated based on the heat generated and the indoor and outdoor temperature difference.

[0044] The formula for calculating the heat output of a transformer is:

[0045] Where W is the transformer power (kVA). It generates heat.

[0046] The formula for calculating exhaust volume is:

[0047] in, The required ventilation volume for the substation. Design temperature for indoor exhaust air. This refers to the supply air temperature.

[0048] Obtain the building area and floor height of the substation, calculate the effective volume of the room based on the building area and floor height, deduct the influence of the floor slab thickness when calculating the effective volume of the room, and then calculate the required exhaust volume of the substation based on the effective volume and air change rate.

[0049] The formula for calculating exhaust volume is:

[0050] in, S is the required exhaust volume for the power distribution room, S is the building area of ​​the power distribution room, H is the floor height, d is the floor slab thickness, and R is the number of air changes per minute.

[0051] 203. Determine whether an exhaust fan room exists based on the target structure model data; Traverse the target structural model data to check if there is a room marked as an exhaust fan room; if there is a room marked as an exhaust fan room, then it is determined that an exhaust fan room exists; if there is no room marked as an exhaust fan room, then it is determined that no exhaust fan room exists.

[0052] Using a predefined standard room name mapping table, a string matching algorithm is used to compare the room names in the model with the standard names in the mapping table. If a room that matches the standard name "exhaust fan room" is found, it is determined that an exhaust fan room exists in the target structural model, and its spatial location information, such as the three-dimensional coordinates of the room's center point or the room's bounding box, is recorded. If no matching room is found after traversing the entire model, it is determined that an exhaust fan room does not exist in the target structural model.

[0053] 204. If an exhaust fan room exists, the duct route shall be determined based on the location of the exhaust fan room; By analyzing the spatial data in the BIM model, the three-dimensional coordinate information of the power distribution room, exhaust fan room, and ventilation shaft is obtained, including the geometric center point, connection port location, and distribution of surrounding building components. Based on the obtained data, a three-dimensional spatial mesh model is established. Based on this three-dimensional spatial mesh model, the building space is discretized into regular cubic units. Each unit is assigned a dynamic passage cost. For example, the cost of a free passage area is 1, the cost of a dense equipment area is 3, the cost of penetrating a building wall is 5, and the cost of penetrating a structural wall is set to infinity to prohibit passage.

[0054] During the path search phase, an improved A* algorithm is used for optimal path planning. This algorithm introduces a spatial semantic analysis module on top of the traditional A* algorithm, dynamically adjusting path weights by identifying room types and functional attributes. For example, the cost remains at the baseline value when traversing ordinary corridors, while additional safety risk weights are added when traversing electrical equipment areas. The total cost of the current path is calculated in real time, including geometric distance, number of wall penetrations, turning losses, and semantic risks, ensuring that the generated duct path simultaneously meets the dual requirements of shortest distance and lowest risk.

[0055] To improve the engineering applicability of the path, corresponding adjustments are performed after the initial path is generated. According to duct installation specifications, the bends in the path are smoothed by using 45-degree angled elbows or rounded transitions to reduce airflow resistance. Secondly, based on fluid dynamics simulation data, the path orientation is optimized to avoid vortex zones and ensure ventilation efficiency. Finally, the collision detection module checks the distance between the path and existing pipeline equipment and automatically adjusts the path to reserve sufficient installation and maintenance space.

[0056] 205. If there is no exhaust fan room, then based on the target structure data, determine at least one candidate path between the power distribution room and its nearest ventilation shaft; The three-dimensional coordinates of the center point of the substation and the center points of each ventilation shaft are extracted from the target structural model data. These coordinates can be obtained through the model's spatial positioning function or manual measurement; the Euclidean distance formula is then used. The coordinates of the center point of the substation (x1, y1, z1) and the center point of each ventilation shaft (x2, y2, z2) are substituted into the formula to calculate the straight-line distance between the substation and each ventilation shaft. This determines the actual distance between the substation and each ventilation shaft. By comparing these distance values, the ventilation shaft closest to the substation is identified.

[0057] The 3D coordinates of the substation and the nearest ventilation shaft are input into the optimized Algorithm A as the start and end points of the path search. The algorithm constructs a search grid in 3D space, where each grid point represents a possible location, and initializes the heuristic function values ​​for the start and end points to estimate the expected cost from the current point to the end point. During the search, the algorithm considers not only the straight-line distance from the current point to the end point as part of the heuristic function, but also incorporates building structure model data, including the location information of obstacles such as walls and columns, to dynamically adjust the path search direction and avoid traversing infeasible areas. It maintains an open list and a closed list to store nodes to be examined and nodes already examined, respectively. Each time, the node with the smallest heuristic function value is selected from the open list for expansion, generating its adjacent feasible nodes. The actual cost and expected total cost from the start point to these adjacent nodes are calculated. When the algorithm expands to the end point or finds a path that meets the ventilation system design requirements, the search terminates, and the path from the end point to the start point is backtracked to obtain a candidate path. By running the algorithm multiple times or adjusting the weights of the heuristic function, at least one candidate path is generated.

[0058] 206. Calculate the path obstacle score for each candidate path; Obtain the path length, number of turns, and number of walls to be passed for each candidate path; calculate the path obstacle score for each candidate path based on the preset weights of each parameter, the path length, number of turns, and number of walls to be passed for each candidate path.

[0059] For each candidate path, a path parsing algorithm traverses all nodes and line segments along the path. For path length, the length of each line segment is summed, and the straight-line distance between adjacent nodes is calculated using a distance formula in 3D space. The total length of the entire path is then obtained. For the number of turns, nodes with significant changes in direction are detected. Whether a turn is constituted is determined by comparing the angle between adjacent line segments to see if it exceeds a preset threshold, and the total number of turns in the entire path is counted. For the number of walls passed through, the algorithm combines building structure model data to check whether each line segment on the path intersects with obstacles such as walls and columns. If an intersection exists, it is determined as a wall pass, and the number of wall passes is recorded. After completing the above information collection, a path obstacle score is calculated based on preset parameter weights. Specifically, based on the actual needs of the ventilation system design and engineering experience, weighting coefficients are set for path length, number of turns, and number of walls penetrated, for example, path length weight 0.5, number of turns weight 0.3, and number of walls penetrated weight 0.2. Each weight value can be dynamically adjusted according to the specific requirements of the project. The indicators are normalized, and the normalized path length, number of turns, and number of walls penetrated for each candidate path are multiplied by the corresponding weighting coefficient to obtain the weighted path length score, number of turns score, and number of walls penetrated score. The three weighted scores are added together to obtain the path obstacle score for each candidate path. The higher the score, the more obstacles the path has, and the greater the construction difficulty and cost may be. The lower the score, the better the path is.

[0060] 207. Select the candidate path with the lowest obstacle score as the duct path; All candidate paths are ranked by obstacle score, and the three paths with the lowest scores are selected as the preferred paths. For these preferred paths, the fit between each preferred path and the building structure is checked, the feasibility of the support and hanger arrangement is verified, and the convenience of future maintenance and repair is analyzed. At the same time, combined with fluid dynamics simulation, the ventilation efficiency and pressure loss of each preferred path are predicted, and a comprehensive evaluation matrix is ​​established. In addition to the obstacle score, engineering factors such as construction cost, service life and expandability are also considered. The final score is calculated by a weighted decision algorithm, and the preferred path with the best overall performance is selected as the duct path. In addition, when the scores are similar, the scheme with a longer straight section is preferred to reduce local resistance loss.

[0061] 208. Select the appropriate fan model and quantity based on the exhaust volume; Match the corresponding fan model to the pre-set fan selection table based on the exhaust volume; determine the required number of fans based on the size and needs of the power distribution room.

[0062] For cases where there is no exhaust fan room: retrieve the pre-set fan selection table, which records the performance parameters of different fan models in detail, including key indicators such as exhaust volume, power, noise, and efficiency. Compare the calculated exhaust volume with the data in the selection table, and automatically match the fan model that meets the exhaust volume requirements. At the same time, take into account factors such as the size, layout, height of the substation, future expansion needs, and operating environment to comprehensively evaluate and determine the required number of fans.

[0063] For situations where an exhaust fan room exists: A pre-set fan selection table is retrieved, which details parameters such as exhaust volume, power, noise level, efficiency, applicable ambient temperature range, and protection level for different fan models. Based on the calculated exhaust volume of the substation, a suitable fan model is automatically matched. Unlike situations without an exhaust fan room, the selection process must prioritize the spatial layout and structural characteristics of the exhaust fan room. For example, if space is limited, smaller, more efficient models should be prioritized. Furthermore, the number of fans must be comprehensively evaluated and determined considering factors such as potential future expansion needs of the substation and the operating environment, allowing for future adjustments.

[0064] Based on the calculated exhaust volume of the substation, the optimal fan model is selected from the fan sample library. For example, when the exhaust volume is 10000 m³ / h... 3 When selecting the unit at a speed of 970 r / min, prioritize models within the corresponding airflow range of unit #15. If the static pressure requirement is 600 Pa, then select the model with an airflow of 9679 m³ / h. 3 A Y11M2-4 type fan (4kW power) with a static pressure of 616Pa and a flow rate of 10166m³ / h can be selected; if a slight over-capacity is permissible, a fan with a flow rate of 10166m³ / h can be used. 3 The Y132S-4 type fan (5.5kW power) with a static pressure of 739Pa and a rated air volume of 5000m³ / h is selected. During selection, noise levels (≤65dB) and installation space are simultaneously checked. For parallel connection schemes, the combined air volume is calculated and interface dimensions are marked. The final output includes performance curves, electrical parameters, and three-dimensional installation dimensions. The parallel connection scheme refers to using two fans, each with a rated air volume of 5000m³ / h. 3 The fans operate simultaneously at a rate of / h to collectively meet the needs of 10,000m 3 Configuration method for total exhaust volume requirement per hour.

[0065] 209. Arrange air ducts, air duct accessories, and air outlets along the air duct path; For cases where there is no exhaust fan room: Based on the path and design specifications, ducts, duct accessories, and air outlets are arranged in three-dimensional space according to the duct path. Duct accessories include, but are not limited to, dampers, fittings, flexible connections, and silencers. Duct selection is based on the calculated fan airflow and preset air velocity limits, and the cross-sectional area is determined by consulting a duct size table. During layout, collision detection is performed in real time to ensure that ducts and accessories do not conflict with building structural obstacles. If a collision is detected, the duct width or height is adjusted, and the detection is repeated until no collision occurs. When selecting duct dimensions, priority is given to meeting the net height requirements, controlling the duct height, and selecting the larger width. In special cases, if a collision occurs when the duct width meets a certain value, the width is cyclically adjusted until the condition is met. Damperes, fittings, flexible connections, silencers, and other accessories are adaptively adjusted according to the duct width. Air outlet selection comprehensively considers duct size, airflow, and air outlet air velocity limits, calculates and derives a suitable air outlet length, and generates the corresponding air outlet component. The air outlet is fixed at the farthest end of the duct path, maintaining a 100mm distance from the end of the duct. At the same time, the size of the air outlet is matched with the size of the air duct. For example, if the width of the air duct is 1000mm, the default length of the generated air outlet is no more than 800mm. The cross-section of the air outlet is determined according to the air volume and the air outlet wind speed limit. The length is calculated by fixing the width of the air outlet at 250mm. If the wind speed requirement is not met, the width of the air outlet is increased to 300mm. The final length of the air outlet is determined by repeating this process.

[0066] For cases with an exhaust fan room: the main difference from cases without an exhaust fan room is that, except for the air vents and some ductwork, all other components are manufactured in the exhaust fan room and placed in series there. Furthermore, if a plenum chamber is added, its placement height is primarily determined by the height of the ductwork. The center height of the plenum chamber is the same as the center height of the ductwork, located directly above the fan, with its center point aligned with the fan's center point to optimize airflow distribution and reduce noise and vibration.

[0067] 210. Based on the determined fan data and the duct path after the components are arranged, connect the components to form an exhaust system.

[0068] For cases where there is no exhaust fan room: After completing the layout of ducts, duct accessories, and air outlets, standardize and regulate each component according to design specifications, determining the connection method and spacing. The fan, as a core component, is tightly connected to the duct, with strong binding via flexible connections on both sides. As a unified component unit, the fan placement space considers its size and form a whole with the flexible connections on both sides. During connection, specific arrangement and combination rules are followed: the fire damper outside the exhaust shaft wall is 100mm from the wall edge; if there is enough space after the fire damper to place a check valve, the distance between the two edges is 100mm; if space is insufficient, a bend is generated according to the path, with no distance requirement; if there is enough space after the bend to place a silencer, the distance between the check valve edge and the bend edge is 50mm, and the distance between the silencer edge and the bend edge is 100mm (if the silencer is directly connected after the bend); if space is insufficient, a bend is placed according to the path; the width of the check valve is fixed at 300mm, and the width of the silencer is fixed at 1000mm; an electric damper is connected after the silencer, and if space is sufficient, the distance between the two edges is 100mm. mm, if space is insufficient, place elbows according to the path. If there is enough space after the elbow to place an electric air valve, the distance between the edge of the electric air valve and the edge of the elbow is 50mm; after the electric air valve, connect a reducer + flexible connector + fan + reducer. If there is enough space, the distance between the reducer + flexible connector + fan + reducer and the edge of the elbow is 50mm. The width of the reducer + flexible connector + fan + reducer is determined according to the size of the reducer and the fan; if there is enough space after the reducer + flexible connector + fan + reducer to place a silencer, the distance between the silencer and the edge of the silencer is 50mm. If there is insufficient space, place elbows according to the path. If there is enough space after the elbow, the distance between the silencer and the edge of the elbow is 50mm; the subsequent path generates a duct, and the exhaust port is placed 100mm from the end. In addition to determining the location of the components mentioned above, the length of the remaining ducts adapts to the path length generated by the duct routing planning module; through reasonable connection and layout between the components, a power distribution room exhaust system that meets design requirements and operates efficiently is formed.

[0069] For cases with an exhaust fan room: the main difference from cases without an exhaust fan room is that: all components are standardized and regulated according to design specifications, determining connection methods and spacing. The fan is placed in a suitable location within the exhaust fan room, tightly connected to the ductwork, with flexible connections on both sides for strong bonding. The fan placement space must fully consider its size, maintenance space requirements, and distance from surrounding equipment to ensure airflow and ease of maintenance. Additionally, the static pressure box, as a potentially added component, must adhere to the aforementioned height and position requirements for placement and connection to ensure the performance and stability of the ductwork system. The fire damper outside the exhaust fan room is fixed 100mm from the wall.

[0070] In the design process of an exhaust system, regardless of whether the system includes an exhaust fan room, the decision-making point regarding whether to install downdraft branch ducts will be encountered during the design generation phase. Users can manually determine the location of the downdraft vents based on design experience, typically placing them against a wall. This placement may be based on factors such as facilitating airflow, avoiding interference with other equipment layouts, and conforming to the building's structural characteristics. The vents are positioned away from the wall, meaning the vent duct connectors point towards the wall and the vents face the interior of the power distribution room, ensuring that the exhausted air can efficiently enter the room for good ventilation. The duct size attached to the vents is consistent with the duct size generated in the original function, ensuring system coordination and ventilation efficiency. The top elevation of the vertical duct is the same as the center elevation of the main pipe, and it is directly connected to the main pipe using a tee or connector, ensuring the stability and sealing of the duct system and allowing smooth airflow between the main pipe and the downdraft branch ducts. The program will automatically calculate and generate the downdraft branch duct entity based on the downdraft vent location determined by the user, significantly improving design efficiency and accuracy, and reducing the tediousness and errors caused by manual drawing.

[0071] In this embodiment of the invention, by acquiring target structural model data and substation operating parameters or spatial data, the required exhaust volume of the substation is calculated. Then, the duct path is flexibly determined based on whether an exhaust fan room exists. If an exhaust fan room exists, the path is determined based on its location. If not, the optimal path is selected by calculating the path obstacle score of each candidate path. Then, based on the exhaust volume, a suitable fan model and quantity are selected. The ducts, accessories, and air outlets are reasonably arranged on the duct path, and the connection of each component is completed to form an exhaust system. This fully considers the actual situation of the substation, optimizes the selection of duct paths and fan selection and arrangement, effectively improves the accuracy of the exhaust system design, and thus improves the exhaust efficiency of the exhaust system.

[0072] The above describes the method for generating the exhaust system of the substation in an embodiment of the present invention. The following describes the apparatus for generating the exhaust system of the substation in an embodiment of the present invention. Please refer to [link / reference]. Figure 3 One embodiment of the ventilation system generating device for a substation in this invention includes: The acquisition module 301 is used to acquire target structural model data, as well as the operating parameters and spatial data of the substation; The calculation module 302 is used to calculate the required ventilation volume of the substation based on the operating parameters or spatial data of the substation. The judgment module 303 is used to determine whether an exhaust fan room exists based on the target structure model data; The first determining module 304 is used to determine the duct path based on the location of the exhaust fan room if an exhaust fan room exists. The second determining module 305 is used to determine the duct path based on the power distribution room and ventilation shaft in the target structure model data if there is no exhaust fan room. The generation module 306 is used to generate an exhaust system based on the exhaust volume and duct path.

[0073] In this embodiment of the invention, the required exhaust volume is calculated by acquiring the space data of the power distribution room to ensure that the exhaust volume is accurately matched with the actual heat dissipation demand. The existence of the exhaust fan room is determined based on the target structural model data, and the duct path is reasonably determined to reduce unnecessary obstacles in the path and reduce the resistance of the duct system. Finally, the exhaust system is generated based on the calculated exhaust volume and the optimized duct path, achieving multi-stage synergy, avoiding errors in manual design, effectively improving the accuracy of the exhaust system design, and thus improving the exhaust efficiency of the exhaust system.

[0074] Please see Figure 4 Another embodiment of the ventilation system generating device for the substation in this invention includes: The acquisition module 301 is used to acquire target structural model data, as well as the operating parameters and spatial data of the substation; The calculation module 302 is used to calculate the required ventilation volume of the substation based on the operating parameters or spatial data of the substation. The judgment module 303 is used to determine whether an exhaust fan room exists based on the target structure model data; The first determining module 304 is used to determine the duct path based on the location of the exhaust fan room if an exhaust fan room exists. The second determining module 305 is used to determine the duct path based on the power distribution room and ventilation shaft in the target structure model data if there is no exhaust fan room. The generation module 306 is used to generate an exhaust system based on the exhaust volume and duct path.

[0075] Optionally, the calculation module 302 can be specifically used for: If the residual heat removal method is used, the required exhaust volume of the substation is calculated based on the transformer power and the temperature difference between indoors and outdoors; if the air change rate method is used, the required exhaust volume of the substation is calculated based on the preset air change rate and the space data of the substation.

[0076] Optionally, the judgment module 303 can also be specifically used for: Traverse the target structural model data to check if there is a room marked as an exhaust fan room; if there is a room marked as an exhaust fan room, then it is determined that an exhaust fan room exists; if there is no room marked as an exhaust fan room, then it is determined that no exhaust fan room exists.

[0077] Optionally, the second determining module 305 includes: The determining unit 3051 is used to determine at least one candidate path between the substation and its nearest ventilation shaft based on the target structure data; The calculation unit 3052 is used to calculate the path obstacle score for each candidate path; The first selection unit 3053 is used to select the path with the lowest obstacle score as the duct path.

[0078] Optionally, the computing unit 3052 can be specifically used for: Obtain the path length, number of turns, and number of walls to be passed for each candidate path; calculate the path obstacle score for each candidate path based on the preset weights of each parameter, the path length, number of turns, and number of walls to be passed for each candidate path.

[0079] Optionally, the generation module 306 includes: The second selection unit 3061 is used to select the corresponding fan model and quantity based on the exhaust volume; Arrangement unit 3062 is used to arrange ducts, duct accessories and air outlets along the duct path; The connection unit 3063 is used to connect the components based on the determined fan data and the duct path after the components are arranged, so as to form an exhaust system.

[0080] Optionally, selection unit 3061 can be specifically used for: Match the corresponding fan model to the pre-set fan selection table based on the exhaust volume; determine the required number of fans based on the size and needs of the power distribution room.

[0081] In this embodiment of the invention, by acquiring target structural model data and substation operating parameters or spatial data, the required exhaust volume of the substation is calculated. Then, the duct path is flexibly determined based on whether an exhaust fan room exists. If an exhaust fan room exists, the path is determined based on its location. If not, the optimal path is selected by calculating the path obstacle score of each candidate path. Then, based on the exhaust volume, a suitable fan model and quantity are selected. The ducts, accessories, and air outlets are reasonably arranged on the duct path, and the connection of each component is completed to form an exhaust system. This fully considers the actual situation of the substation, optimizes the selection of duct paths and fan selection and arrangement, effectively improves the accuracy of the exhaust system design, and thus improves the exhaust efficiency of the exhaust system.

[0082] above Figure 3 and Figure 4 The ventilation system generating device based on the substation in this embodiment of the invention will be described in detail from the perspective of modular functional entities. The electronic equipment in this embodiment of the invention will be described in detail from the perspective of hardware processing.

[0083] See Figure 5As shown, the electronic device includes a processor 500 and a memory 501. The memory 501 stores machine-executable instructions that can be executed by the processor 500. The processor 500 executes the machine-executable instructions to implement the above-described method for generating an exhaust system based on a substation.

[0084] Furthermore, Figure 5 The electronic device shown also includes a bus 502 and a communication interface 503. The processor 500, the communication interface 503 and the memory 501 are connected via the bus 502.

[0085] The memory 501 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 503 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc. The bus 502 may be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0086] The processor 500 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of the processor 500 or by instructions in software form. The processor 500 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may 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, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this disclosure. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this disclosure can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 501. The processor 500 reads the information in memory 501 and, in conjunction with its hardware, completes the method steps of the aforementioned embodiment.

[0087] The present invention also provides an electronic device, the computer device including a memory and a processor, the memory storing computer-readable instructions, which, when executed by the processor, cause the processor to perform the steps of the ventilation system generation method based on the substation in the above embodiments.

[0088] The present invention also provides a computer-readable storage medium, which can be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium, wherein the computer-readable storage medium stores instructions that, when the instructions are executed on a computer, cause the computer to perform the steps of the method for generating an exhaust system based on a substation.

[0089] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0090] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0091] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for generating an exhaust system based on a substation, characterized in that, The method for generating the ventilation system based on the substation includes: Acquire target structural model data, as well as the operating parameters and spatial data of the substation; Calculate the required exhaust volume for the substation based on its operating parameters and spatial data. Determine whether an exhaust fan room exists based on the target structure model data; If an exhaust fan room exists, the duct path is determined based on the location of the exhaust fan room; If there is no exhaust fan room, the duct path is determined based on the power distribution room and ventilation shaft in the target structure model data; An exhaust system is generated based on the exhaust volume and the duct path.

2. The method for generating an exhaust system based on a substation according to claim 1, characterized in that, The step of calculating the required exhaust volume for the substation based on its operating parameters or spatial data includes: If the method of eliminating residual heat is adopted, the required exhaust volume of the substation is calculated based on the transformer power and the temperature difference between indoor and outdoor. If the air change rate method is used, the required exhaust volume of the substation is calculated based on the preset air change rate and the space data of the substation.

3. The method for generating an exhaust system based on a substation according to claim 1, characterized in that, The determination of whether an exhaust fan room exists based on the target structure model data includes: Traverse the target structure model data to check if there is a room identified as an exhaust fan room; If a room is identified as an exhaust fan room, then the existence of an exhaust fan room is confirmed. If there is no room marked as an exhaust fan room, then it is determined that there is no exhaust fan room.

4. The method for generating an exhaust system based on a substation according to claim 1, characterized in that, The determination of duct paths based on the ventilation shafts in the substation and the target structural model data includes: Based on the target structure data, at least one candidate path is determined between the substation and its nearest ventilation shaft; Calculate the path obstacle score for each candidate path; The candidate path with the lowest obstacle score is selected as the duct path.

5. The method for generating an exhaust system based on a substation according to claim 4, characterized in that, The calculation of the path obstacle score for each candidate path includes: Obtain the path length, number of turns, and number of walls to pass through for each candidate path; The path obstacle score for each candidate path is calculated based on the preset weights of each parameter, the path length of each candidate path, the number of turns, and the number of walls to pass through.

6. The method for generating an exhaust system based on a substation according to claim 1, characterized in that, The exhaust system generated based on the exhaust volume and the duct path includes: Select the corresponding fan model and quantity based on the exhaust volume; Air ducts, air duct accessories, and air outlets are arranged along the air duct path; Based on the determined fan data and the duct path after the components are arranged, the components are connected to form an exhaust system.

7. The method for generating an exhaust system based on a substation according to claim 6, characterized in that, The step of selecting the corresponding fan model and quantity based on the exhaust volume includes: Match the corresponding fan model in the preset fan selection table according to the exhaust volume; Based on the size and requirements of the substation, determine the required number of fans.

8. A ventilation system generating device based on a substation, characterized in that, The exhaust system generating device based on the substation includes: The acquisition module is used to acquire target structural model data, as well as the operating parameters and spatial data of the substation; The calculation module is used to calculate the required ventilation volume of the substation based on the operating parameters or spatial data of the substation. The judgment module is used to determine whether an exhaust fan room exists based on the target structure model data; The first determining module is used to determine the duct path based on the location of the exhaust fan room if an exhaust fan room exists. The second determining module is used to determine the duct path based on the power distribution room and ventilation shaft in the target structure model data if there is no exhaust fan room. A generation module is used to generate an exhaust system based on the exhaust volume and the duct path.

9. An electronic device, characterized in that, The electronic device includes: a memory and at least one processor, wherein the memory stores instructions; The at least one processor invokes the instructions in the memory to cause the electronic device to execute the method for generating an exhaust system based on a substation as described in any one of claims 1-7.

10. A computer-readable storage medium storing instructions thereon, characterized in that, When the instructions are executed by the processor, they implement the method for generating an exhaust system based on a substation as described in any one of claims 1-7.

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