An integrated design method and modeling system for parameterized V-type filter tank

Abstract

The application discloses an integrated design method and modeling system of a parameterized V-shaped filter tank, and belongs to the technical field of integrated design of water supply and drainage engineering and BIM. In view of the problems of large manual calculation error, repeated modeling labor and asynchronous data after parameter modification of the traditional V-shaped filter tank design, the application adopts an integrated architecture of parameter input-intelligent process calculation-parameterized three-dimensional modeling-multi-view drawing-linkage updating, sets five calculation units of single cell size, tank body height, air-water distribution, water inlet system and V-shaped groove to automatically complete process accounting and specification checking, is compatible with mainstream BIM platforms to generate multi-specialty integrated three-dimensional models and output a complete set of labeled construction drawings, and the calculation, model and drawing are synchronously and linkingly updated when the parameters are modified. The application significantly improves design efficiency and calculation accuracy, greatly shortens the design cycle, solves the design iteration data conflict problem, and is suitable for full-stage design of V-shaped filter tanks of urban water plants.

Description

Technical Field

[0001] This invention relates to the field of integrated design technology of water supply and drainage engineering design and building information modeling (BIM), specifically to an integrated design method and modeling system for parametric V-type filter beds. Background Technology

[0002] V-type filters are core filtration structures in the water treatment process chain, undertaking the crucial function of deep water purification. Their design quality directly determines the effluent quality and operational stability of the water plant. Traditional V-type filter design processes involve multiple independent steps, including process parameter calculation, structural dimension verification, 3D model building, and construction drawing creation. These steps rely heavily on manual parameter calculation, modeling, and drawing, resulting in the following significant drawbacks: 1. Low calculation efficiency and high error risk: The process calculation covers multiple sets of hydraulic formulas, including single cell size, pool height, air-water distribution, and water inlet system. Manual calculation requires repeated verification, and all calculations need to be recalculated when parameters are adjusted. The workload is large and human calculation errors are easy to occur, making it difficult to reliably guarantee the design accuracy.

[0003] 2. High amount of repetitive modeling work: 3D modeling requires manually drawing a large number of components such as pool walls, filter plates, support beams, and channels based on calculation results. The number of components is large and the positioning accuracy requirements are high. The model size needs to be modified one by one during design iteration, resulting in a high proportion of repetitive work and a long overall design cycle.

[0004] 3. Fragmented data links and prone to errors: The data in the process calculation sheet, 3D model, and construction drawings are independent of each other. When the basic design parameters (such as design water volume, filtration rate, and backwashing intensity) change, the calculation results, model components, and drawing annotations need to be modified separately, which can easily lead to data inconsistencies and design errors.

[0005] 4. High cost of multi-disciplinary collaboration: In the traditional design model, structural, process, and mechanical and electrical disciplines are modeled independently, resulting in high cost of collaboration; auxiliary components such as steel bars and pipes need to be arranged separately, which further reduces the overall design efficiency.

[0006] To address the aforementioned issues, there is an urgent need in this field for an integrated design solution for V-type filter beds that can achieve automatic process calculation, parametric 3D modeling, automatic multi-view drawing generation, and full-process linkage updates, in order to improve design efficiency, ensure design accuracy, and reduce collaboration costs. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a parameterized V-type filter design method and integrated modeling system. Through a parameter-driven integrated architecture, it solves the technical problems of large calculation errors, low design efficiency, asynchronous parameter changes, and difficulty in multi-disciplinary collaboration in traditional V-type filter design.

[0008] To address the above problems, this invention provides an integrated design method for parameterized V-type filter beds, comprising the following steps: S1. Receive the basic design parameters of the V-type filter entered by the user. The basic design parameters include design water volume, number of filter groups and number of cells in a single group, design filtration rate, backwashing time and intensity, thickness parameters of the tank structure layer, and influent design flow rate. S2. Based on the design water volume, number of filter cells, design filtration rate and backwashing time in S1, calculate the effective daily working time of the filter cells and derive the theoretical filtration area of ​​a single filter cell; according to the manually set values ​​of single cell length and width, back-check and output the actual operating filtration rate and single filter cell planar dimension parameters. S3. Based on the single-cell filter planar dimension parameters output by S2, and combined with the tank structure layer thickness parameters of S1, the total height of the filter is calculated by accumulating layer by layer; the support beams are automatically arranged according to the preset support beam spacing, and the non-integer remainder in the length direction is allocated to both ends of the tank, and the vertical dimensions of the tank and the support beam arrangement parameters are output. S4. Based on the single-cell filter planar dimension parameters of S2, combined with the backwash intensity parameters of S1, calculate the total backwash flow rate and derive the single-cell drain outlet size; calculate the total cross-sectional area, single-hole size, number of holes on one side and hole spacing of the water distribution square hole and air distribution round hole according to the preset water distribution hole velocity and air distribution hole velocity respectively, and output the complete set of dimension parameters of drainage and air-water distribution channel. S5. Based on the single-cell filter length parameter of S2, combined with the inlet design flow velocity of S1, calculate the cross-section of the main inlet channel and the size of the single-cell inlet according to the forced filtration flow rate; calculate the V-groove inlet area and surface sweeping opening parameters according to the preset V-groove inclination angle, height and elevation constraints, and output the design parameters of the inlet distribution channel and V-groove. S6. Based on all structural dimension parameters output from S2 to S5, call the standardized component library to automatically generate a parametric 3D model of the V-shaped filter, including civil engineering structure, process channel, and water and air distribution components. S7. Based on the 3D model generated by S6, generate planar views of different levels according to the preset cutting height, generate vertical section views according to the custom section position, support the generation of 3D axonometric views by local selection, and automatically associate and label all dimensions and elevation information, and output construction drawings that conform to the drafting standards. S8. When the basic design parameters in S1 are modified, all calculation results from S2 to S5 are refreshed simultaneously, and the dimensions of the 3D model components in S6 and the view annotations in S7 are updated in conjunction with each other, so as to realize the parameter-driven linkage update of the entire design process.

[0009] Preferably, in S2, the backwashing time includes the independent durations of three stages: air flushing, air-water flushing, and water flushing plus surface cleaning. The effective working time per day is 24 hours minus the total backwashing time for a single cycle. The formula for calculating the theoretical filtration area of ​​a single cell is: filtration area of ​​a single cell = design water volume ÷ effective working time ÷ number of groups ÷ number of cells ÷ design filtration rate.

[0010] Preferably, in S3, the thickness parameters of the tank structure include the filter tank height, water depth, filter media layer thickness, support layer thickness, filter plate thickness, support beam height, and water distribution zone height; the system automatically verifies that the total thickness of the filter media layer and support layer is within the standard range of 0.95m to 1.50m, and the preset spacing of the support beams is 1000mm.

[0011] Preferably, in S4, the flow velocity control range of the water distribution square hole orifice is 1.0~1.5m / s, and the flow velocity control range of the air distribution round hole orifice is 10~15m / s; the water distribution square hole and the air distribution round hole are evenly arranged on both sides along the length of the channel, the center distance between the holes is 0.70m, and the bottom elevation of the drainage outlet is 200mm higher than the bottom of the drainage channel.

[0012] Preferably, in S5, the V-shaped trough has a preset inclination angle of 45°, a vertical height of 1m, and a wall thickness of 0.06m. The bottom elevation of the trough is 0.15m lower than the top of the drainage collection trough weir. The main inlet channel is designed according to the forced filtration flow rate during single-cell maintenance, and the bottom elevation of the single-cell inlet is 200mm higher than the bottom of the inlet channel.

[0013] An integrated modeling system for parametric V-type filters includes: The parameter input module is used to receive the basic design parameters of the V-type filter entered by the user. The basic design parameters include design water volume, number of filter cells, design filtration rate, backwash parameters, structural layer parameters and influent flow rate parameters. The single-cell size calculation unit is used to calculate the effective working time and theoretical filtration area of ​​a single cell based on the design water volume, number of filter cells, design filtration rate and backwashing time. It supports manual setting of length and width and reverse verification of actual filtration rate, and outputs the planar size parameters of a single cell. The tank height calculation unit is used to calculate the total height of the filter tank layer by layer based on the plane dimensions of a single cell and the structural layer parameters, arrange the support beams at fixed intervals and allocate the end allowances, and output the vertical dimensions and support beam arrangement parameters. The drainage and air-water distribution calculation unit is used to calculate the complete set of dimensions and layout parameters of the drain outlet, water distribution square hole and air distribution round hole based on the single cell plane size and backwash intensity. The water intake system calculation unit is used to calculate the structural and opening design parameters of the water intake channel, water inlet and V-groove based on the length of a single cell and the water flow velocity. The parametric 3D modeling module is used to automatically generate a multi-disciplinary integrated 3D model of the V-shaped filter bed based on the dimensional parameters output by each computing unit and by calling a standardized component library. The multi-view output module is used to automatically generate multiple views such as plan, section and axonometric views based on the 3D model, automatically complete the dimension and elevation association annotation, and output construction drawings that conform to the drafting standards. The linked update module is used to simultaneously refresh all calculation results, 3D model components and view annotations when the basic design parameters are modified, so as to realize parameter-driven updates throughout the entire process.

[0014] Preferably, the parametric 3D modeling module is compatible with both ArchiCAD and Revit design platforms. The model consists of basic components such as walls, beams, slabs, and columns. The pool walls have a uniform thickness of 300mm, the bottom slab is 600mm thick, and the remaining plates are 200mm thick. It supports independent modification of individual components and subsequent detailed design.

[0015] Preferably, the parametric 3D modeling module simultaneously generates an integrated model of the civil engineering pool, process channels, water and gas distribution pipelines, valves and fittings, covering the four major professional design contents of structure, process, architecture and electrical.

[0016] Preferably, the modeling system also includes a parametric reinforcement arrangement unit, which automatically arranges the reinforcing bars and stirrups for load-bearing components such as pool walls, bottom slabs, and support beams according to design specifications, and supports custom adjustments to the reinforcement type, spacing, and protective layer thickness.

[0017] Preferably, the input parameters and output results of each calculation unit are distinguished by color coding, and the complete process calculation sheet can be exported in Excel format for design review and engineering data archiving.

[0018] The advantages of this invention compared to the prior art are: 1. This invention automates the entire process of process calculation, 3D modeling, and drawing output, eliminating the need for manual repetitive calculations and component-by-component modeling. Compared with traditional design methods, it can shorten the design cycle by more than 90%, significantly reduce the workload of designers, and greatly improve design efficiency.

[0019] 2. This invention incorporates a complete set of V-type filter process calculation formulas and standard verification logic, completely avoiding human calculation errors. All orifice flow velocities and structural dimensions are automatically checked to the standard range, ensuring design compliance and operational reliability, and reliable calculation accuracy.

[0020] 3. This invention establishes a deep binding between parameters, models, and drawings. After the basic parameters are modified, the calculation sheets, 3D models, and construction drawings are updated synchronously, which completely solves the problem of data inconsistency in design iteration, greatly improves the efficiency of scheme optimization, and enables full-process linkage updates.

[0021] 4. This invention simultaneously generates multi-disciplinary models of structure, process, architecture, and electrical systems, and is equipped with automatic reinforcement layout and electromechanical pipeline layout, realizing integrated design of civil engineering and process, reducing the cost of multi-disciplinary collaboration, and achieving integrated design of multiple disciplines.

[0022] 5. This invention is compatible with ArchiCAD and Revit, two major BIM platforms. The model is composed of basic components, supports local modification and detailed design, and can be adapted to V-type filter design scenarios of different scales and process parameters, with strong adaptability and scalability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a flowchart of the method of the present invention; Figure 2 This is a schematic diagram of the interactive interface of the single-cell size calculation unit of the present invention; Figure 3 This is a schematic diagram of the interactive interface of the pool height calculation unit of the present invention; Figure 4 This is a schematic diagram of the interactive interface of the drainage and air-water distribution channel calculation unit of the present invention; Figure 5 This is a schematic cross-sectional view of the V-groove structure of the present invention; Figure 6 This is a schematic diagram of the interactive interface of the water inlet and distribution channel calculation unit of the present invention; Figure 7 These are plan views of the filter bed at different cutting heights, where Figure 7 (a) is a plan view with a section height of 5m. Figure 7 (b) is a plan view with a section height of 2.5m; Figure 8 This is a typical vertical cross-sectional view of a filter bed. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] The present invention provides an integrated design method and modeling system for a parametric V-type filter, the calculation units of which are described below: 1. Single cell size calculation unit: The interactive interface is as follows Figure 2 As shown, input parameters such as design water volume, number of filter groups and cells, design filtration rate, and backwashing time, and the system will automatically calculate the daily effective working time of the filter and the filtration area of ​​a single cell. It also supports manual determination of the width and length of a single cell and reverse verification of the actual filtration rate to ensure that the design parameters are compliant.

[0029] Area of ​​a single cell: BxL Design water volume Q MAX = m 3 / d V-shaped filter Groups, each group is equipped with a filter bed grid Filtration rate V= 7~20 m / h Backwash time: air flush min, air-water flush min, water flushing and water level cleaning min Daily working time of filter bed = 24 - backwashing time Therefore, the filter area of ​​a single cell = Q MAX / Working time / Number of groups / Number of grids / Filter speed The area is rounded down manually and then allocated to B and L. Therefore, the actual filtration rate = Q MAX / Working time / Number of groups / Number of grids / BL.

[0030] 2. Pool height calculation unit: The interactive interface is as follows Figure 3 As shown, input parameters such as filter tank height, water depth, filter media layer thickness, support layer thickness, filter plate thickness, support beam height, and water distribution zone height, and the system will automatically calculate the total height of the tank, simultaneously verify the standard limits for the total thickness of the filter media and support layer, automatically arrange the support beams at fixed intervals, and automatically distribute non-divisible dimensions to both ends of the tank.

[0031] Ultra-high filter bed >=0.30m Filter bed water depth Take the commonly used initial value of 1.50m Filter media thickness Support layer thickness + =(0.95~1.50m) Filter plate thickness Take the commonly used initial value of 0.15m. Support beam height Height of water distribution area under beam =(0.70~0.90m) The total height of the filter bed is: The spacing of the support beams is taken as follows 1000 mm, the portion that cannot be divided evenly by L / 1000 is included in the distance between the two ends and the wall.

[0032] 3. Drainage and air-water distribution channel calculation unit: Interactive interface as follows Figure 4 As shown, based on the backwashing intensity parameter, the system automatically calculates the size of the drainage collection tank, the area of ​​the drainage outlet, the total cross-sectional area of ​​the water distribution square holes and the air distribution round holes, the size of each hole, the number of holes and their spacing, automatically checks the flow velocity at the orifice, matches the standard gate specifications, and automatically sets the drainage outlet elevation according to the specifications. The width of the gas-water distribution channel at the beginning b m, take the higher h1 m, end width taken b m, take the higher h2 m If the top of the drainage collection trough is 0.5m higher than the top surface of the filter media layer, then the height of the drainage collection trough is... = +0.50-h1-plate thickness = +0.50-h2-plate thickness The dimensions of the drainage channel weir crest are shown in the figure below. These are the default dimensions and can be modified in the Complex Section Manager interface. 1) Dimensions of each drain outlet A = (Q) 水冲 +Q 表扫水 ) / V 反排 Q 水冲 =Water flushing intensity x B x L Q 表扫水 =Table sweeping intensity xB xL Among them, V 反排 =1.0~1.5m / s, water jet strength is taken as 18 m 3 / m 2 .h, the water sweeping intensity is taken as... 7.2 m 3 / m 2 .h, After calculating A, it is rounded down manually and matched with the wall gate.

[0033] The bottom elevation of the drainage outlet is 200mm higher than that of the drainage ditch.

[0034] 2) Water distribution square hole = / Among them, the flow velocity in the water distribution branch pipe or the flow velocity at the orifice It is approximately 1.0 to 1.5 m / s. This is the total area of ​​the water distribution square holes. N water distribution square holes are evenly arranged on each side along the length of the canal, for a total of 2N holes; the center-to-center distance of the holes... 0.70 m, Area of ​​each orifice: (example) = / 2N=0.225 / 30=0.0075 Therefore, the size of each orifice is taken as follows: 0.09 m× 0.09 m (height not greater than) ) 3) Gas distribution orifice = / Among them, the backflushing gas distribution branch pipe flow velocity or orifice flow velocity It is around 10~15 m / s.

[0035] This is the total area of ​​the air distribution holes. The air distribution holes are closely attached to the lower edge of the filter plate and are evenly distributed between the support beams on both sides along the length of the channel. M There are 2 square water distribution holes in total; the center-to-center distance between the holes is... 0.70 m, Area of ​​each orifice: (Example) = / 2M=0.0675 / 30=0.00225 Rounding down the orifice diameter: = 4. V-groove design calculation unit: The V-groove structure is as follows: Figure 5As shown, based on the constraints of fixed inclination angle, tank height, wall thickness and elevation, the system automatically calculates the inlet area of ​​the V-shaped tank, the diameter and spacing of the surface sweep water outlet, ensuring uniform water distribution, and automatically matching the tank size with the length of the filter cell.

[0036] The V-groove has an inclination angle of 45°, a vertical height of 1m, and a wall thickness of 0.06m. The bottom of the V-shaped channel is 0.15m lower than the top of the weir in the collection channel. The bottom of the V-shaped trough has a water outlet hole with a diameter of d. =0.025m, interval 0.15m, trough length L Therefore, the area of ​​the V-shaped groove inlet is: A= / Number of groups / Number of grids / 2 / ,in It is approximately 0.8~1.2 m / s 5. Inlet and distribution channel calculation unit: Interactive interface as follows Figure 6 As shown, the inlet channel size is designed according to the forced filtration flow rate, and the channel width, channel height, water flow area and flow velocity in the pipe are automatically calculated. The wide-crested weir and inlet size are generated simultaneously, the inlet elevation is automatically controlled according to the specifications, and the channel length and filter layout are automatically linked.

[0037] 1) Inlet The flow rate of each main inlet channel is designed according to the forced filtration flow rate: = / Number of groups / (Number of cells - 1) Therefore, the cross-sectional area of ​​each group of main inlet channels = = / ,in =0.8~1.2m / s Given: canal width = m, water level = m, canal height = m, canal length = B + canal width + canal wall thickness. Number of grids 2 Inlet dimensions per compartment: A 进 = / Number of groups / Number of grids / Then A 进 The rounding is done manually, and the gate is matched with the wall.

[0038] The bottom elevation of the inlet is 200 mm higher than the bottom of the inlet channel.

[0039] 2) Wide-crested intake weir Tentatively, the length of the broad-crested dam is... =5m, 1m high, 200mm thick, with a wide crest weir set parallel to the intake channel, 0.6m away from the side wall of the main intake channel and 0.6m away from the side wall of each compartment.

[0040] The bottom of the wide-crested weir is level with the bottom of the inlet and distribution channel.

[0041] Therefore, the wastewater channel below the wide-crested weir has a width of 0.6+0.6+0.2, and its bottom elevation is level with the bottom of the pool.

[0042] To more clearly illustrate the specific embodiments of the present invention, an example is provided below: This embodiment takes the design of a group of 4-compartment V-type filter beds in a waterworks as an example, with a design water volume Qmax = 65000 m³. 3 / d, The entire process design is completed using the method and system described in this invention. The specific implementation process is as follows: Step 1: Basic Parameter Input Enter basic design parameters through the visual interactive interface: Design water volume 65000.00m³ 3 / d, one set of filter beds, four compartments per set; design filtration rate 8.00 m / h; backwash cycle 24h, air flushing duration 2min, air and water flushing duration 4min, water flushing plus surface cleaning duration 6min; water flushing intensity 18m 3 / (m 2 •h), surface sweeping water intensity 7.2m 3 / (m 2 ·h), air impact intensity 55m 3 / (m 2 •h); Pool structure parameters: freeboard 0.5m, water depth 1.5m, filter media layer thickness 1.0m, support layer thickness 0.2m, filter plate thickness 0.15m, support beam height 0.4m, water distribution area height under beam 0.8m; inlet design flow velocity 0.8m / s.

[0043] Step 2: Calculation of planar dimensions of a single filter cell Based on the entered basic parameters, the total backwashing time for a single cycle is first calculated to be 2+4+6=12min=0.2h, and the effective working time of the filter bed per day is 24-0.2=23.8h.

[0044] Calculate the theoretical filtration area of ​​a single cell: ; The width of each filter cell is manually set to B = 12.00m, and the length to L = 8.00m, resulting in an actual area of ​​96m² per cell. 2 Reverse verification of actual filtration rate: ; This value is within the standard range of 7~20m / h, the parameters are compliant, and the output single-cell plane size is 12m×8m.

[0045] Step 3: Calculation of the vertical height of the pool Based on the individual cell planar dimensions and structural layer parameters, the total height is calculated by accumulating the data layer by layer from top to bottom: ; The total thickness of the filter layer and the support layer was 1.2m, which is within the specification range of 0.95~1.50m, and the verification was passed.

[0046] The support beams are arranged at 1000mm intervals, with a single cell length divisible by 8m. A total of 7 support beams are set, with zero end allowance. The total height of the output pool is 4.55m, which is consistent with the support beam arrangement parameters.

[0047] Step 4: Calculation of drainage and gas-water distribution system Based on the area of ​​a single cell: 12 × 8 = 96 m 2 Calculate the backwash water flow rate and air flow rate respectively: Total water flow rate: ; Total sweep water flow: ; Total drainage flow: ; Set the drainage outlet flow velocity control to 1.0~1.5m / s, and calculate the area of ​​a single drainage outlet: ; The intake and drainage outlet dimensions are 0.7m × 0.7m, and the reverse flow velocity is approximately 1.37m / s, which meets the requirements; the bottom elevation of the drainage outlet is 200mm higher than the bottom of the drainage ditch.

[0048] Water distribution orifice calculation: Assume an orifice flow velocity of 1.0 m / s and a total water distribution flow rate of 0.48 m³ / s. 3 / s, total opening area is 0.48m² 2 The holes are evenly distributed along both sides of the canal, with 20 holes on each side, for a total of 40 holes. The area of ​​each hole is 0.012 m². 2 (120cm) 2 The square hole size is 10cm×10cm, and the reverse flow velocity is 1.2m / s, which meets the requirements; the center-to-center distance of the holes is 0.7m.

[0049] Calculation of the gas distribution orifice: The orifice velocity is set at 10~15 m / s, and the total gas flow rate is approximately 1.467 m³ / s. 3 / s, total opening area approximately 0.113m² 2 There are 20 holes on each side, for a total of 40 holes, with each hole having an area of ​​approximately 0.0028 m². 2 The calculated aperture is approximately 6 cm, and the reverse flow velocity is approximately 12.97 m / s, which meets the requirements; the air distribution holes are arranged close to the lower edge of the filter plate.

[0050] Final output drainage and air-water distribution channel complete set of dimensions parameters: air-water distribution channel width is 1.2m, starting height is 2.0m, and ending height is 1.5m; the top of the drainage collection tank is 0.6m higher than the top surface of the filter material layer.

[0051] Step 5: Calculation of water inlet system and V-groove Calculate the total inlet flow rate for each group under forced filtration conditions (1 cell under maintenance, 3 cells in operation): ; The inlet flow velocity is set at 0.8 m / s, and the cross-sectional area of ​​the main inlet channel is approximately 0.316 m². 2 The channel width is 0.25m, the water surface height is 1.1m, the channel height is 1.4m, and the reverse core flow velocity is about 0.91m / s, which is within the range of 0.8~1.2m / s.

[0052] Calculation of inlet flow rate per cell: The design flow rate per cell is approximately 0.1897 m³. 3 / s, with a flow velocity of 1.0 m / s, the area is approximately 0.19 m². 2 The inlet size is 0.4m×0.4m, and the reverse flow velocity is about 1.18m / s, which meets the requirements; the bottom elevation of the inlet is 200mm higher than the bottom of the inlet channel.

[0053] V-shaped channel design: inclination angle 45°, vertical height 1m, wall thickness 0.06m, channel bottom elevation is 0.15m lower than the top of the collection channel weir; channel length is the same as the length of a single cell, 8m, with surface sweeping water outlet holes at the bottom of the channel, hole diameter 25mm, spacing 150mm, evenly distributed along the channel length; the calculated inlet area of ​​the V-shaped channel meets the inlet flow velocity requirements.

[0054] The final output includes a complete set of design parameters for the water inlet and distribution channel and the V-shaped channel.

[0055] Step 6: Parametric 3D Model Generation The model automatically generates a 3D model of a V-shaped filter by calling upon a standardized component library and based on all the above calculation results. The model uses standardized component dimensions: 300mm for the filter wall, 600mm for the base plate, and 200mm for the remaining plates. It automatically generates civil engineering components such as the main body of the filter, the V-shaped channel, the air-water distribution channel, the inlet channel, and the drainage channel. Simultaneously, it generates electromechanical components such as water distribution pipes, air distribution pipes, valves, and fittings. The model also automatically arranges the steel reinforcement components for the filter wall, base plate, and supporting beams according to specifications, forming a multi-disciplinary 3D model integrating structure, process, architecture, and electrical systems. The model is compatible with ArchiCAD and Revit platforms, and all components support independent editing and modification.

[0056] Step 7: Output of multi-view construction drawings Based on the generated 3D model, the system automatically generates planar views at different section heights: a section height of 5m displays the top layer layout of the filter tank, while a section height of 2.5m displays the layout of the filter layer and channels. Vertical sections of the tank, V-shaped channel sections, and air-water distribution channel sections are automatically generated by adding section lines. The system also supports selecting local areas to generate 3D isometric views for construction briefings. The system automatically completes the annotation of all dimensions, elevations, apertures, channel widths, and component numbers. The annotation information is linked to the model parameters, and the output drawings meet the requirements of the "Standard for Architectural Water Supply and Drainage Drawings" (GB / T 50106-2010), achieving the required depth for construction drawing design.

[0057] Step 8: Linked Update Verification When modifying basic design parameters, such as adjusting the design water volume to 70,000 m³, 3 When / d, the system automatically triggers a full-process calculation refresh: the filter area of ​​a single cell is recalculated, and the actual filtration rate is updated synchronously; the size of the drain outlet and water and air distribution holes is automatically checked and adjusted; the size of the corresponding components in the 3D model is automatically modified synchronously; the outlines and annotations of all plan and section views are automatically refreshed, without the need for manual adjustment one by one, ensuring the consistency and accuracy of data during the design iteration process.

[0058] Finally, any aspects not fully described in this invention utilize existing mature products and technologies.

[0059] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An integrated design method for a parametric V-type filter, characterized in that, Includes the following steps: S1. Receive the basic design parameters of the V-type filter tank entered by the user. The basic design parameters include the design water volume, the number of filter tank groups and the number of cells in a single group, the design filtration rate, the backwashing time and intensity, the tank body structural layer thickness parameters, and the influent design flow rate. S2. Based on the design water volume, number of filter cells, design filtration rate and backwashing time in S1, calculate the effective daily working time of the filter cells and derive the theoretical filtration area of ​​a single filter cell; according to the manually set values ​​of single cell length and width, back-check and output the actual operating filtration rate and single filter cell planar dimension parameters. S3. Based on the single-cell filter planar dimension parameters output by S2, and combined with the tank structure layer thickness parameters of S1, the total height of the filter is calculated by accumulating layer by layer; the support beams are automatically arranged according to the preset support beam spacing, and the non-integer remainder in the length direction is allocated to both ends of the tank, and the vertical dimensions of the tank and the support beam arrangement parameters are output. S4. Based on the single-cell filter planar dimension parameters of S2, combined with the backwash intensity parameters of S1, calculate the total backwash flow rate and derive the single-cell drain outlet size; calculate the total cross-sectional area, single-hole size, number of holes on one side and hole spacing of the water distribution square hole and air distribution round hole according to the preset water distribution hole velocity and air distribution hole velocity respectively, and output the complete set of dimension parameters of drainage and air-water distribution channel. S5. Based on the single-cell filter length parameter of S2, combined with the inlet design flow velocity of S1, calculate the cross-section of the main inlet channel and the size of the single-cell inlet according to the forced filtration flow rate; calculate the V-groove inlet area and surface sweeping opening parameters according to the preset V-groove inclination angle, height and elevation constraints, and output the design parameters of the inlet distribution channel and V-groove. S6. Based on all structural dimension parameters output from S2 to S5, call the standardized component library to automatically generate a parametric 3D model of the V-shaped filter, including civil engineering structure, process channel, and water and air distribution components. S7. Based on the 3D model generated by S6, generate planar views of different levels according to the preset cutting height, generate vertical section views according to the custom section position, support the generation of 3D axonometric views by local selection, and automatically associate and label all dimensions and elevation information, and output construction drawings that conform to the drafting standards. S8. When the basic design parameters in S1 are modified, all calculation results from S2 to S5 are refreshed simultaneously, and the dimensions of the 3D model components in S6 and the view annotations in S7 are updated in conjunction with each other, so as to realize the parameter-driven linkage update of the entire design process.

2. The integrated design method for parameterized V-type filter beds according to claim 1, characterized in that: In S2, the backwashing time includes the independent durations of three stages: air flushing, air-water flushing, and water flushing plus surface cleaning. The effective working time per day is 24 hours minus the total backwashing time for a single cycle. The formula for calculating the theoretical filtration area of ​​a single cell is: filtration area of ​​a single cell = design water volume ÷ effective working time ÷ number of groups ÷ number of cells ÷ design filtration rate.

3. The integrated design method for parameterized V-type filter beds according to claim 1, characterized in that: In S3, the thickness parameters of the tank structure include the filter tank height, water depth, filter media layer thickness, support layer thickness, filter plate thickness, support beam height, and water distribution zone height; the system automatically verifies that the total thickness of the filter media layer and support layer is within the standard range of 0.95m to 1.50m, and the preset spacing of the support beams is 1000mm.

4. The integrated design method for parameterized V-type filter beds according to claim 1, characterized in that: In S4, the flow velocity control range of the water distribution square hole orifice is 1.0~1.5m / s, and the flow velocity control range of the air distribution round hole orifice is 10~15m / s; the water distribution square hole and the air distribution round hole are evenly arranged on both sides along the length of the channel, the center distance between the holes is 0.70m, and the bottom elevation of the drainage outlet is 200mm higher than the bottom of the drainage channel.

5. The integrated design method for parameterized V-type filter beds according to claim 1, characterized in that: In S5, the V-shaped trough has a preset inclination angle of 45°, a vertical height of 1m, and a wall thickness of 0.06m. The bottom elevation of the trough is 0.15m lower than the top of the drainage collection trough weir. The main inlet channel is designed according to the forced filtration flow rate during single-cell maintenance, and the bottom elevation of the single-cell inlet is 200mm higher than the bottom of the inlet channel.

6. An integrated modeling system for parametric V-type filters, characterized in that, include: The parameter input module is used to receive the basic design parameters of the V-type filter bed entered by the user. The basic design parameters include design water volume, number of filter bed cells, design filtration rate, backwashing parameters, structural layer parameters, and influent flow rate parameters. The single-cell size calculation unit is used to calculate the effective working time and theoretical filtration area of ​​a single cell based on the design water volume, number of filter cells, design filtration rate and backwashing time. It supports manual setting of length and width and reverse verification of actual filtration rate, and outputs the planar size parameters of a single cell. The tank height calculation unit is used to calculate the total height of the filter tank layer by layer based on the plane dimensions of a single cell and the structural layer parameters, arrange the support beams at fixed intervals and allocate the end allowances, and output the vertical dimensions and support beam arrangement parameters. The drainage and air-water distribution calculation unit is used to calculate the complete set of dimensions and layout parameters of the drain outlet, water distribution square hole and air distribution round hole based on the single cell plane size and backwash intensity. The water intake system calculation unit is used to calculate the structural and opening design parameters of the water intake channel, water inlet and V-groove based on the length of a single cell and the water flow velocity. The parametric 3D modeling module is used to automatically generate a multi-disciplinary integrated 3D model of the V-shaped filter bed based on the dimensional parameters output by each computing unit and by calling a standardized component library. The multi-view output module is used to automatically generate multiple views such as plan, section and axonometric views based on the 3D model, automatically complete the dimension and elevation association annotation, and output construction drawings that conform to the drafting standards. The linked update module is used to simultaneously refresh all calculation results, 3D model components and view annotations when the basic design parameters are modified, so as to realize parameter-driven updates throughout the entire process.

7. The integrated modeling system for parametric V-type filters according to claim 6, characterized in that: The parametric 3D modeling module is compatible with both ArchiCAD and Revit design platforms. The model consists of basic components such as walls, beams, slabs, and columns. The pool walls have a uniform thickness of 300mm, the bottom slab is 600mm thick, and the remaining slabs are 200mm thick. It supports independent modification of individual components and subsequent detailed design.

8. The integrated modeling system for parametric V-type filters according to claim 6, characterized in that: The parametric 3D modeling module simultaneously generates an integrated model of the civil engineering pool, process channels, water and gas distribution pipelines, valves and fittings, covering four major professional design contents: structure, process, architecture and electrical.

9. The integrated modeling system for parametric V-type filters according to claim 6, characterized in that: It also includes a parametric rebar arrangement unit, which automatically arranges the reinforcing bars and stirrups for load-bearing components such as pool walls, bottom slabs, and support beams according to design specifications, and supports custom adjustments to rebar type, spacing, and protective layer thickness.

10. The integrated modeling system for parametric V-type filters according to claim 6, characterized in that: The input parameters and output results of each calculation unit are distinguished by color coding. It supports exporting complete process calculation sheets in Excel format for design review and engineering data archiving.

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