CN115828405A - BIM parameterization-based circular nozzle lateral air supply design method and system - Google Patents
BIM parameterization-based circular nozzle lateral air supply design method and system Download PDFInfo
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Abstract
The invention discloses a BIM parameterization-based circular nozzle side air supply design method and system, wherein a process specialty, a building specialty and an air conditioner air supply specialty are associated in a multi-strand parallel non-isothermal jet flow circular nozzle side air supply design through BIM parameterization-based driving application, and main parameters such as an inclination angle and a size of a circular nozzle are efficiently and quickly obtained by combining with relevant standard specifications from the aspects of building height and width, air conditioner regional temperature and air speed. Through parameterization setting, the reasonability of the scheme is automatically verified, and the purpose of quickly and reasonably determining the design scheme in the project design process is achieved.
Description
Technical Field
The invention relates to the field of BIM, in particular to a method and a system for designing lateral air supply of a circular nozzle based on BIM parameterization.
Background
With the development of the BIM (Building Information modeling) technology in China, the application value of digitization in engineering projects is more and more emphasized. The BIM technology is a technical means for carrying out simulation and virtual construction auxiliary construction project full life cycle management based on a three-dimensional model, and is gradually an important technology for transformation upgrading, quality improvement and efficiency improvement of the construction industry. The nozzle air supply is a mode of realizing air supply by means of high-speed jet flow blown out by the nozzle, and is mainly suitable for air conditioning places of high and large plants or public building spaces. The air supply of the nozzle can adopt lateral air supply of the nozzle or vertical downward air supply of the nozzle. When the lateral air supply of the nozzle is adopted, the air supply speed is high, the jet flow drives the indoor air to be intensively mixed, the speed is gradually reduced, and large circular air flow is formed indoors, so that the air conditioning area obtains a more uniform temperature field and a more uniform speed field. However, the design calculation of the nozzle is relatively complex, particularly, the design calculation of a plurality of parallel non-isothermal jet flows needs to be carried out for a plurality of times of trial calculation, and the variety of the nozzles is large, so that certain obstacles are brought to the application of nozzle air supply.
In the lateral air supply design process of the multi-strand parallel non-isothermal jet flow circular nozzle, the process of submitting design intermediate data among different specialties is low in efficiency due to the limitation of the traditional design flow and mode, the design of the nozzle air supply system cannot be considered from the perspective of the whole system, and the efficiency and the accuracy of nozzle design are greatly influenced. Therefore, a method for designing a lateral air supply of a plurality of parallel non-isothermal jet circular nozzles from the overall project perspective is needed.
Disclosure of Invention
In order to solve at least one technical problem, the invention provides a circular nozzle side air supply design method and system based on BIM parameterization.
The invention provides a BIM parameterization-based circular nozzle lateral air supply design method, which comprises the following steps:
obtaining construction professional and process professional investment;
calculating and obtaining the cold load of the air-conditioning area according to the professional conditions of the building;
obtaining the acting distance of jet flow according to the construction professional conditions;
according to construction professional conditions, assuming jet fall;
selecting the average wind speed of a working area according to the process requirements;
selecting the axial speed of the tail end of the jet flow according to the process requirement and the specification;
selecting air supply temperature difference of an air conditioner according to process requirements;
calculating to obtain total air supply quantity according to the air supply air conditioner temperature difference and the air conditioner area cold load;
calculating to obtain the diameter of the circular nozzle according to the parameters;
calculating to obtain the air supply speed of the circular nozzle according to the parameters;
checking a calculation result, wherein the diameter of the circular nozzle is required to be between 0.2 and 0.8 meter, the air supply speed of the circular nozzle is required to be not more than 12m/s, and otherwise, the jet fall or the air supply temperature difference is reset;
calculating to obtain the air output of each circular nozzle;
calculating and determining the number of the nozzles;
calculating the Archimedes number of the system;
calculating to obtain the actual jet fall, the axial center speed of the tail end of the jet and the upper boundary lapping position;
checking that the difference between the actual jet fall and the assumed jet fall is not more than 0.2 m, and the difference between the actual value of the jet axis speed and the assumed value is not more than 0.05m/s;
if the above conditions are met, the design requirements are met; if not, resetting jet fall or air supply temperature difference;
repeating the steps again until the requirements are met;
if the abnormal information parameters are different from the specifications, calculating and analyzing abnormal information parameters, importing the abnormal information parameters into a BIM (building information modeling) model and generating an abnormal processing scheme;
and feeding back the exception handling scheme to the building and process major.
In this scheme, the obtaining of the basic parameter information for the construction specialty and the process specialty investment includes:
building height, building width, working area distribution, air conditioning area temperature requirement and air conditioning area wind speed requirement.
In this scheme, in the scheme obtained by the design method, the specific nozzle parameters include:
the jet nozzle comprises a nozzle inclination angle, a nozzle diameter, a jet flow fall, a jet flow acting distance, the total air supply quantity of an air conditioning system, a nozzle flow stabilizing coefficient, a nozzle air supply speed, a nozzle air supply quantity and the total number of system nozzle.
In the scheme, the design method comprises a model assembling process, and specifically comprises the following steps:
building a nozzle model based on BIM according to the nozzle parameters to obtain a nozzle BIM;
combining the nozzle BIM model with an air supply model of an air conditioner to obtain a heating ventilation BIM model;
acquiring BIM model data of each professional model of a building, a structure and heating ventilation, and performing overall assembly data combination to obtain an overall assembly model;
based on the technical professional requirements and the BIM model standards of building, structure and heating and ventilation specialties, performing overall model improvement optimization analysis on the overall assembly model, and summarizing improvement information of each professional model to obtain an improved scheme;
feeding back the improved schemes of the building and heating ventilation models to corresponding specialties;
and obtaining the models after professional improvement of the building and heating ventilation, and performing assembly circulation of the overall model again until all the professionals meet the requirements.
In this scheme, the design specifically is the design of the lateral air supply of the round nozzle of the parallel non-isothermal efflux of stranded, and the parametric data include:
the length of the range area of the jet flow and the acting distance of the jet flow;
the jet flow fall and the jet flow range length;
the inclination angle of the nozzle, the jet flow fall and the length of the range area of the jet flow;
the diameter of the round nozzle, the inclination angle of the nozzle, the temperature difference of air supply, the length of a range area of jet flow and the fall of the jet flow;
the air supply speed of the round nozzle, the inclination angle of the nozzle, the air supply temperature difference, the length of a shooting range area of jet flow and the jet flow fall;
the air supply quantity and the air supply speed of each round nozzle;
air conditioner cold load and total air supply volume of an air conditioning system;
the total air supply quantity and the number of the round nozzles of the air conditioning system are calculated;
the actual air supply speed of the circular nozzle and the total air supply quantity of the air conditioning system;
the temperature difference between the Archimedes number and the air supply, the diameter of the circular nozzle and the air supply speed of the actual circular nozzle;
actual jet fall, archimedes number and diameter of the circular nozzle;
the axial speed of the tail end of the jet flow, the Archimedes number and the air supply speed of the circular nozzle;
the lapping position of the upper boundary, the Archimedes number and the diameter of the round nozzle.
In this scheme, in the overall assembly model, the method further includes:
acquiring a heating ventilation BIM model in the overall assembly model;
splitting the heating ventilation BIM model to obtain an air conditioner air supply model and an assembly component of a round nozzle;
carrying out parametric association and reassembly on the air conditioner air supply model and the round nozzle assembly component to obtain a parametrically driven heating ventilation BIM assembly model;
and recombining the heating ventilation BIM assembly model driven by parameterization and the overall assembly model to obtain the parameterization-driven overall assembly model.
In this scheme, the overall assembly model further includes:
performing data conversion based on virtual reality on the overall assembly model according to each professional model to obtain VR overall assembly model data;
importing the VR overall assembly model data and the model parameter data into a VR system to simulate the air supply process of the air conditioner, and obtaining multiple times of simulation data according to the simulation process;
calculating and analyzing abnormal data which do not accord with preset physical rules according to the simulation data, and performing correction analysis on the model according to the abnormal data to obtain VR model correction parameters;
and importing the VR model correction parameters into a VR system for parameter correction, and repeatedly simulating the air supply process of the air conditioner to obtain optimal simulation data.
In this scheme, the optimal simulation data further includes:
carrying out model basic motion splitting on the optimal simulation data to obtain a plurality of basic model motion processes;
the complexity of the motion process of the basic model is obtained, and the motion process of the basic model is partially fused according to the complexity to obtain a plurality of simulation operation steps;
performing professional information correlation analysis on the VR overall assembly model in the simulation operation steps to obtain the relevant professional information corresponding to each simulation operation step;
acquiring user retrieval professional information, analyzing each piece of associated professional information, and marking a simulation operation step corresponding to the current associated professional information to obtain a retrieval result simulation operation step if the current associated professional information and the user retrieval professional information have the same professional information;
and summarizing all the search result simulation operation steps to obtain user search simulation step data, and displaying the user search simulation step data through a VR system.
The invention also provides a BIM parameterization-based circular nozzle side air supply design system, which comprises: the device comprises a memory and a processor, wherein the memory comprises a BIM parameterization-based circular-nozzle side air supply design program, and the BIM parameterization-based circular-nozzle side air supply design program realizes the following steps when being executed by the processor:
obtaining construction professional and process professional investment;
calculating and obtaining the cold load of the air-conditioning area according to the professional conditions of the building;
obtaining the acting distance of jet flow according to the construction professional conditions;
according to construction professional conditions, assuming jet fall;
selecting the average wind speed of a working area according to the process requirements;
selecting the axial speed of the tail end of the jet flow according to the process requirement and the specification;
selecting air supply temperature difference of an air conditioner according to process requirements;
calculating to obtain total air supply quantity according to the air supply air conditioner temperature difference and the air conditioner area cold load;
calculating to obtain the diameter of the circular nozzle according to the parameters;
calculating to obtain the air supply speed of the circular nozzle according to the parameters;
checking a calculation result, wherein the diameter of the circular nozzle is required to be between 0.2 and 0.8 meter, the air supply speed of the circular nozzle is required to be not more than 12m/s, and otherwise, the jet fall or the air supply temperature difference is reset;
calculating to obtain the air output of each circular nozzle;
calculating and determining the number of the nozzles;
calculating the Archimedes number of the system;
calculating to obtain the actual jet fall, the axial center speed of the tail end of the jet and the upper boundary lapping position;
checking that the difference between the actual jet fall and the assumed jet fall is not more than 0.2 m, and the difference between the actual value of the jet axis speed and the assumed value is not more than 0.05m/s;
if the above conditions are met, the design requirements are met; if not, resetting jet fall or air supply temperature difference;
repeating the steps again until the requirements are met;
if the abnormal information parameters are different from the specifications, calculating and analyzing abnormal information parameters, importing the abnormal information parameters into a BIM (building information modeling) model and generating an abnormal processing scheme;
and feeding back the exception handling scheme to the building and process major.
In this scheme, the design system includes the model assembly process, specifically is:
building a nozzle model based on BIM according to the nozzle parameters to obtain a nozzle BIM;
combining the nozzle BIM model with an air supply model of an air conditioner to obtain a heating ventilation BIM model;
acquiring BIM model data of each professional model of a building, a structure and a heating and ventilation system, and performing overall assembly data combination to obtain an overall assembly model;
performing overall model improvement optimization analysis on the overall assembly model based on the process professional requirements and the BIM model standards of building, structure and heating ventilation professionals, and summarizing the improvement information of each professional model to obtain an improved scheme;
feeding back the improved schemes of the building and heating ventilation models to corresponding specialties;
and obtaining the models after professional improvement of the building and heating ventilation, and performing assembly circulation of the overall model again until all the professionals meet the requirements.
The invention discloses a BIM parameterization-based circular nozzle lateral air supply design method and a BIM parameterization-based circular nozzle lateral air supply design system. The rationality of the scheme is automatically verified through parameterization setting, and the purpose of quickly and reasonably determining the design scheme in the project design process is achieved.
Drawings
FIG. 1 is a flow chart of a BIM parameterization-based circular nozzle side-blowing design method of the invention;
FIG. 2 illustrates a flow chart of the present invention for obtaining an overall assembly model;
FIG. 3 shows a flow chart of the present invention for obtaining optimal simulation data;
FIG. 4 shows a block diagram of a BIM parameterization-based circular-jet side-blowing design system of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
FIG. 1 shows a flow chart of a circular nozzle side blowing design method based on BIM parameterization.
As shown in fig. 1, a first aspect of the present invention provides a design method for lateral air supply of a circular nozzle based on BIM parameterization, including:
s102, acquiring construction professional and process professional contributions;
s104, calculating and obtaining the cold load of an air conditioning area according to the professional conditions of the building, obtaining the acting distance of jet flow according to the professional conditions of the building, assuming jet flow fall, selecting the average wind speed of a working area according to the process requirements, selecting the axle center speed of the tail end of the jet flow according to the specifications according to the process requirements, and selecting the air supply temperature difference of the air conditioner according to the process requirements;
s106, calculating to obtain the total air supply quantity according to the air supply air conditioner temperature difference and the air conditioner area cold load;
s108, calculating to obtain the diameter of the circular nozzle according to the parameters, and calculating to obtain the air supply speed of the circular nozzle according to the parameters;
s110, checking a calculation result, wherein the diameter of the circular nozzle is required to be between 0.2 and 0.8 meter, the air supply speed of the circular nozzle is required to be not more than 12m/S, and otherwise, the jet fall or air supply temperature difference is reset;
s112, calculating to obtain the air output of each circular nozzle;
s114, calculating and determining the number of the nozzles;
s116, calculating the Archimedes number of the system;
s118, calculating and obtaining the actual jet fall, the axial center speed of the tail end of the jet and the upper boundary lapping position;
s120, checking that the difference between the actual jet fall and the assumed jet fall is not more than 0.2 m, the difference between the actual value of the jet axis speed and the assumed value is not more than 0.05m/S, if the conditions are met, reaching the design requirement, if the conditions are not met, resetting the jet fall or the air supply temperature difference, and repeating the step S104 again until the requirements are met;
s122, if the abnormal information parameters are different from the specifications, calculating and analyzing abnormal information parameters, importing the abnormal information parameters into a BIM (building information modeling) model and generating an abnormal processing scheme;
and S124, feeding back the exception handling scheme to building and process specialties.
According to the embodiment of the invention, the obtaining of the basic parameter information for the construction specialty and the process specialty comprises the following steps:
building height, building width, working area distribution, air conditioning area temperature requirement and air conditioning area wind speed requirement.
According to the embodiment of the invention, in the scheme obtained by the design method, the specific nozzle parameters comprise:
the jet nozzle comprises a nozzle inclination angle, a nozzle diameter, a jet flow fall, a jet flow acting distance, the total air supply quantity of an air conditioning system, a nozzle flow stabilizing coefficient, a nozzle air supply speed, a nozzle air supply quantity and the total number of system nozzle.
FIG. 2 shows a flow chart of the present invention for obtaining an overall assembly model.
According to the embodiment of the invention, the design method comprises a model assembling process, and specifically comprises the following steps:
s202, building a spout model based on BIM according to the spout parameters to obtain a spout BIM model;
s204, combining the nozzle BIM model with the air supply model of the air conditioner to obtain a heating and ventilation BIM model;
s206, acquiring BIM model data of each professional model of a building, a structure and heating ventilation, and performing overall assembly data combination to obtain an overall assembly model;
s208, performing overall model improvement optimization analysis on the overall assembly model based on the process professional requirements and the BIM model standards of building, structure and heating ventilation professionals, and summarizing improvement information of each professional model to obtain an improved scheme;
s210, feeding back the improvement schemes of the building and heating ventilation models to corresponding specialties;
and S212, obtaining the models after professional improvement of the building and heating ventilation, and performing assembly circulation of the overall model again until all the professionals meet the requirements.
In the BIM model data of each professional model, the professional models include a construction professional model, a structure professional model, a water supply and drainage professional model, and an electrical professional model.
The method comprises the steps of obtaining BIM model data of each professional model of the building, the structure and the heating ventilation, performing overall assembly data combination, obtaining an overall assembly model, and performing assembly again in a circulating mode when an improvement scheme appears subsequently. In the design stage of the system scheme, each specialty carries out collaborative design on the scheme, each specialty forms different schemes, and the design scheme corresponds to the BIM model. In the past cycle, a plurality of preset overall assembly models can be obtained, and according to the plurality of preset overall assembly models, better overall assembly data combination can be obtained through analysis so as to meet the requirements of each specialty.
According to the embodiment of the invention, the design is a lateral air supply design with a plurality of parallel non-isothermal jet circular nozzles, wherein the parametric data comprise:
the length of the range area of the jet flow and the acting distance of the jet flow;
the jet fall and the jet range area length;
the inclination angle of the nozzle, the jet fall and the length of the range area of the jet;
the diameter of the circular nozzle, the inclination angle of the nozzle, the air supply temperature difference, the length of a shooting range area of jet flow and the jet flow fall;
the air supply speed of the round nozzle, the inclination angle of the nozzle, the air supply temperature difference, the length of a shooting range area of jet flow and the jet flow fall;
the air supply quantity and the air supply speed of each round nozzle;
air conditioner cold load and total air supply volume of an air conditioning system;
the total air supply quantity and the number of the round nozzles of the air conditioning system are calculated;
the actual air supply speed of the circular nozzle and the total air supply quantity of the air conditioning system;
the temperature difference between the Archimedes number and the air supply, the diameter of the circular nozzle and the air supply speed of the actual circular nozzle;
actual jet fall, archimedes number and diameter of the circular nozzle;
the axial speed of the tail end of the jet flow, the Archimedean number and the air supply speed of the circular nozzle;
the lapping position of the upper boundary, the Archimedes number and the diameter of the round nozzle.
According to the embodiment of the present invention, the overall assembly model further includes:
acquiring a heating ventilation BIM model in the overall assembly model;
splitting the heating ventilation BIM model to obtain an air conditioner air supply model and an assembly component of a round nozzle;
carrying out parametric association and reassembly on the air conditioner air supply model and the round nozzle assembly component to obtain a parametrically driven heating ventilation BIM assembly model;
and recombining the heating ventilation BIM assembly model driven by parameterization and the overall assembly model to obtain the parameterization-driven overall assembly model.
FIG. 3 shows a flow chart for obtaining optimal simulation data according to the present invention.
According to an embodiment of the present invention, the overall assembly model further includes:
s302, performing data conversion based on virtual reality on the overall assembly model according to each professional model to obtain VR overall assembly model data;
s304, importing the VR overall assembly model data and the model parameter data into a VR system to simulate the air supply process of the air conditioner, and obtaining multiple times of simulation data according to the simulation process;
s306, calculating and analyzing abnormal data which do not accord with preset physical rules according to the simulation data, and performing correction analysis on the model according to the abnormal data to obtain VR model correction parameters;
and S308, importing the VR model correction parameters into a VR system for parameter correction, and repeatedly simulating the air supply process of the air conditioner to obtain optimal simulation data.
According to an embodiment of the present invention, the optimal simulation data further includes:
carrying out model basic motion splitting on the optimal simulation data to obtain a plurality of basic model motion processes;
the method comprises the steps of obtaining the complexity of the motion process of a basic model, and performing partial fusion on the motion process of the basic model according to the complexity to obtain a plurality of simulation operation steps;
performing professional information correlation analysis on the VR overall assembly model in the simulation operation steps to obtain relevant professional information corresponding to each simulation operation step;
acquiring user retrieval professional information, analyzing each piece of associated professional information, and marking a simulation operation step corresponding to the current associated professional information if the current associated professional information and the user retrieval professional information have the same professional information to obtain a retrieval result simulation operation step;
and summarizing all the search result simulation operation steps to obtain user search simulation step data, and displaying the user search simulation step data through a VR system.
It should be noted that the optimal simulation data includes a plurality of simulation operation steps, each simulation operation step is a subdivision process of the optimal simulation data, and by looking up the subdivision process, a user can understand details of the whole air conditioner air supply process more deeply. In each simulation operation step, the operation process can relate to one or more professional contents, the invention can count the professions related to each step by analyzing the associated professional information corresponding to each simulation operation step, and further, the invention can search the corresponding simulation operation step according to the professional contents specified by the user by acquiring the professional information searched by the user, thereby facilitating the workers of each professional to check the part of the design of the specified professional contents in the design scheme and further accurately making the modification and optimization of the model.
In addition, in the simulation process, the whole lateral air supply process of the multi-strand parallel non-isothermal jet circular nozzle is continuous, the simulation data are split, fused and the like, a plurality of simulation operation steps can be obtained, the analysis process can be refined by analyzing the simulation operation processes of different steps, and the lateral air supply simulation process of the multi-strand parallel non-isothermal jet circular nozzle can be known more intuitively and in detail.
According to an embodiment of the invention, the overall assembly model further comprises:
acquiring BIM model data of building, structure and heating ventilation professional models, and performing overall assembly data combination on the BIM model data of various professional models to obtain a plurality of preset overall assembly models;
calculating and analyzing the structure conflict condition between every two professional models in the preset overall assembly model to obtain an average structure conflict index corresponding to the preset overall assembly model;
and sequencing according to the average structure conflict index to obtain sequenced preset overall assembly model data, and selecting a first preset overall assembly model as an overall assembly model.
It should be noted that, in the acquired BIM model data of the building, structure, heating and ventilating professional models, one professional model generally has a plurality of design schemes, and corresponds to a plurality of BIM models. According to the invention, the BIM model data of various professional models are subjected to overall assembly data combination, and the optimal overall assembly model is selected according to the conflict condition among the models, so that the subsequent engineering errors are reduced.
FIG. 4 shows a block diagram of a BIM parameterization-based circular-jet side-blowing design system of the present invention.
The second aspect of the present invention also provides a BIM parameterization based circular-nozzle side-blowing design system 4, which comprises: a memory 41 and a processor 42, wherein the memory includes a BIM parameterization-based circular-nozzle side-blowing design program, and when the BIM parameterization-based circular-nozzle side-blowing design program is executed by the processor, the method comprises the following steps:
obtaining construction professional and process professional investment;
calculating and obtaining the cold load of the air-conditioning area according to the professional conditions of the building;
obtaining the acting distance of jet flow according to the construction professional conditions;
according to construction professional conditions, assuming jet fall;
selecting the average wind speed of a working area according to the process requirements;
selecting the axial speed of the tail end of the jet flow according to the process requirement and the specification;
selecting air supply temperature difference of an air conditioner according to process requirements;
calculating to obtain total air supply quantity according to the air supply air conditioner temperature difference and the air conditioner area cold load;
calculating to obtain the diameter of the circular nozzle according to the parameters;
calculating to obtain the air supply speed of the circular nozzle according to the parameters;
checking a calculation result, wherein the diameter of the circular nozzle is required to be between 0.2 and 0.8 meter, the air supply speed of the circular nozzle is required to be not more than 12m/s, and otherwise, the jet fall or the air supply temperature difference is reset;
calculating to obtain the air output of each circular nozzle;
calculating and determining the number of the nozzles;
calculating the Archimedes number of the system;
calculating to obtain the actual jet fall, the axial center speed of the tail end of the jet and the upper boundary lapping position;
checking that the difference between the actual jet fall and the assumed jet fall is not more than 0.2 m, and the difference between the actual value and the assumed value of the jet axis speed is not more than 0.05m/s;
if the above conditions are met, the design requirements are met; if not, resetting jet fall or air supply temperature difference;
repeating the steps again until the requirements are met;
if the abnormal information parameters are different from the specifications, calculating and analyzing abnormal information parameters, importing the abnormal information parameters into a BIM (building information modeling) model and generating an abnormal processing scheme;
and feeding back the exception handling scheme to the building and process major.
According to the embodiment of the invention, the obtaining of the basic parameter information for the construction specialty and the process specialty comprises the following steps:
building height, building width, working area distribution, air conditioning area temperature requirement and air conditioning area wind speed requirement.
According to the embodiment of the invention, in the scheme obtained by the design method, the specific nozzle parameters comprise:
the jet nozzle comprises a nozzle inclination angle, a nozzle diameter, a jet flow fall, a jet flow acting distance, the total air supply quantity of an air conditioning system, a nozzle flow stabilizing coefficient, a nozzle air supply speed, a nozzle air supply quantity and the total number of system nozzle.
According to the embodiment of the invention, the design method comprises a model assembling process, and specifically comprises the following steps:
building a nozzle model based on BIM according to the nozzle parameters to obtain a nozzle BIM;
combining the nozzle BIM model with an air supply model of an air conditioner to obtain a heating ventilation BIM model;
acquiring BIM model data of each professional model of a building, a structure and heating ventilation, and performing overall assembly data combination to obtain an overall assembly model;
based on the technical professional requirements and the BIM model standards of building, structure and heating and ventilation specialties, performing overall model improvement optimization analysis on the overall assembly model, and summarizing improvement information of each professional model to obtain an improved scheme;
feeding back the improved schemes of the building and heating ventilation models to corresponding specialties;
and obtaining the models after professional improvement of the building and heating ventilation, and performing assembly circulation of the overall model again until all the professionals meet the requirements.
In the BIM model data of each professional model, the professional models include a construction professional model, a structure professional model, a water supply and drainage professional model, and an electrical professional model.
The method comprises the steps of obtaining BIM model data of each professional model of the building, the structure and the heating ventilation, performing overall assembly data combination, obtaining an overall assembly model, and performing assembly again in a circulating mode when an improvement scheme appears subsequently. In the design stage of the system scheme, each specialty carries out collaborative design on the scheme, each specialty forms different schemes, and the design scheme corresponds to the BIM model. In the past cycle, a plurality of preset overall assembly models can be obtained, and according to the plurality of preset overall assembly models, better overall assembly data combination can be obtained through analysis so as to meet the requirements of each specialty.
According to the embodiment of the invention, the design is a lateral air supply design with a plurality of parallel non-isothermal jet circular nozzles, wherein the parametric data comprise:
the length of the range area of the jet flow and the acting distance of the jet flow;
the jet fall and the jet range area length;
the inclination angle of the nozzle, the jet fall and the length of the range area of the jet;
the diameter of the circular nozzle, the inclination angle of the nozzle, the air supply temperature difference, the length of a shooting range area of jet flow and the jet flow fall;
the air supply speed of the round nozzle, the inclination angle of the nozzle, the air supply temperature difference, the length of a shooting range area of jet flow and the jet flow fall;
the air supply quantity and the air supply speed of each round nozzle;
air conditioner cold load and total air supply volume of an air conditioning system;
the total air supply quantity and the number of the round nozzles of the air conditioning system are calculated;
the actual air supply speed of the circular nozzle and the total air supply quantity of the air conditioning system;
the temperature difference between the Archimedes number and the air supply, the diameter of the circular nozzle and the air supply speed of the actual circular nozzle;
actual jet fall, archimedes number and diameter of the circular nozzle;
the axial speed of the tail end of the jet flow, the Archimedes number and the air supply speed of the circular nozzle;
the lapping position of the upper boundary, the Archimedes number and the diameter of the round nozzle.
According to the embodiment of the present invention, the overall assembly model further includes:
acquiring a heating ventilation BIM model in the overall assembly model;
splitting the heating ventilation BIM model to obtain an air conditioner air supply model and an assembly component of a round nozzle;
carrying out parametric association and reassembly on the air conditioner air supply model and the round nozzle assembly component to obtain a parametrically driven heating ventilation BIM assembly model;
and recombining the heating ventilation BIM assembly model driven by parameterization and the overall assembly model to obtain the parameterization-driven overall assembly model.
According to an embodiment of the present invention, the overall assembly model further includes:
performing data conversion based on virtual reality on the overall assembly model according to each professional model to obtain VR overall assembly model data;
importing the VR overall assembly model data and the model parameter data into a VR system to simulate the air supply process of the air conditioner, and obtaining multiple times of simulation data according to the simulation process;
calculating and analyzing abnormal data which do not accord with preset physical rules according to the simulation data, and performing correction analysis on the model according to the abnormal data to obtain VR model correction parameters;
and importing the VR model correction parameters into a VR system for parameter correction, and repeatedly simulating the air supply process of the air conditioner to obtain optimal simulation data.
According to an embodiment of the present invention, the optimal simulation data further includes:
carrying out model basic motion splitting on the optimal simulation data to obtain a plurality of basic model motion processes;
the complexity of the motion process of the basic model is obtained, and the motion process of the basic model is partially fused according to the complexity to obtain a plurality of simulation operation steps;
performing professional information correlation analysis on the VR overall assembly model in the simulation operation steps to obtain the relevant professional information corresponding to each simulation operation step;
acquiring user retrieval professional information, analyzing each piece of associated professional information, and marking a simulation operation step corresponding to the current associated professional information if the current associated professional information and the user retrieval professional information have the same professional information to obtain a retrieval result simulation operation step;
and summarizing all the search result simulation operation steps to obtain user search simulation step data, and displaying the user search simulation step data through a VR system.
It should be noted that the optimal simulation data includes a plurality of simulation operation steps, each simulation operation step is a subdivision process of the optimal simulation data, and by looking up the subdivision process, a user can understand details of the whole air conditioner air supply process more deeply. In each simulation operation step, the operation process can relate to one or more professional contents, the invention can count the professions related to each step by analyzing the associated professional information corresponding to each simulation operation step, and further, the invention can search the corresponding simulation operation step according to the professional contents specified by the user by acquiring the professional information searched by the user, thereby facilitating the workers of each professional to check the part of the design of the specified professional contents in the design scheme and further accurately making the modification and optimization of the model.
In addition, in the simulation process, the whole lateral air supply process of the multi-strand parallel non-isothermal jet circular nozzle is continuous, the simulation data are split, fused and the like, a plurality of simulation operation steps can be obtained, the analysis process can be refined by analyzing the simulation operation processes of different steps, and the lateral air supply simulation process of the multi-strand parallel non-isothermal jet circular nozzle can be known more intuitively and in detail.
According to an embodiment of the invention, the overall assembly model further comprises:
acquiring BIM model data of building, structure and heating ventilation professional models, and performing overall assembly data combination on the BIM model data of various professional models to obtain a plurality of preset overall assembly models;
calculating and analyzing the structure conflict condition between every two professional models in the preset overall assembly model to obtain an average structure conflict index corresponding to the preset overall assembly model;
and sequencing according to the average structure conflict index to obtain sequenced preset overall assembly model data, and selecting a first preset overall assembly model as an overall assembly model.
It should be noted that, in the acquiring of the BIM model data of the building, structure and heating and ventilation professional models, one professional model generally has a plurality of design schemes, and corresponds to a plurality of BIM models. According to the invention, overall assembly data combination is carried out on BIM model data of various professional models, and an optimal overall assembly model is selected according to the conflict condition among the models, so that subsequent engineering errors are reduced.
The invention discloses a BIM parameterization-based circular nozzle side air supply design method and system, wherein a process specialty, a building specialty and an air conditioner air supply specialty are associated in a multi-strand parallel non-isothermal jet flow circular nozzle side air supply design through BIM parameterization-based driving application, and main parameters such as an inclination angle and a size of a circular nozzle are efficiently and quickly obtained by combining with relevant standard specifications from the aspects of building height and width, air conditioner regional temperature and air speed. The rationality of the scheme is automatically verified through parameterization setting, and the purpose of quickly and reasonably determining the design scheme in the project design process is achieved.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps of implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer-readable storage medium, and when executed, executes the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A BIM parameterization-based circular nozzle side air supply design method is characterized by comprising the following steps:
obtaining construction professional and process professional investment;
calculating and obtaining the cold load of the air-conditioning area according to the professional conditions of the building;
obtaining the acting distance of jet flow according to the construction professional conditions;
according to construction professional conditions, assuming jet fall;
selecting the average wind speed of a working area according to the process requirements;
selecting the axle center speed of the tail end of the jet flow according to the process requirements and specifications;
selecting air supply temperature difference of an air conditioner according to process requirements;
calculating to obtain total air supply quantity according to the air supply air conditioner temperature difference and the air conditioner area cold load;
calculating to obtain the diameter of the circular nozzle according to the parameters;
calculating to obtain the air supply speed of the circular nozzle according to the parameters;
checking a calculation result, wherein the diameter of the circular nozzle is required to be between 0.2 and 0.8 meter, the air supply speed of the circular nozzle is required to be not more than 12m/s, and otherwise, the jet fall or the air supply temperature difference is reset;
calculating to obtain the air output of each circular nozzle;
calculating and determining the number of the nozzles;
calculating the Archimedes number of the system;
calculating to obtain the actual jet fall, the axial center speed of the tail end of the jet and the upper boundary lapping position;
checking that the difference between the actual jet fall and the assumed jet fall is not more than 0.2 m, and the difference between the actual value of the jet axis speed and the assumed value is not more than 0.05m/s;
if the above conditions are met, the design requirements are met; if not, resetting jet fall or air supply temperature difference and repeating the calculation to obtain the cold load step of the air conditioning area until the requirements are met;
if the abnormal information parameters are different from the specifications, calculating and analyzing abnormal information parameters, importing the abnormal information parameters into a BIM (building information modeling) model and generating an abnormal processing scheme;
and feeding back the exception handling scheme to the building and process major.
2. The BIM parameterization-based circular nozzle lateral air supply design method according to claim 1, wherein the step of obtaining basic parameter information for construction specialties and process specialties comprises the following steps of:
building height, building width, working area distribution, air conditioning area temperature requirement and air conditioning area wind speed requirement.
3. The BIM parameterization-based circular nozzle side air supply design method according to claim 1, wherein in the scheme obtained by the design method, specific nozzle parameters comprise:
the jet nozzle comprises a jet nozzle inclination angle, a jet nozzle diameter, a jet flow fall, a jet flow action distance, the total air supply quantity of an air conditioning system, a jet nozzle flow stabilizing coefficient, a jet nozzle air supply speed, a jet nozzle air supply quantity and the total number of system jet nozzles.
4. The BIM parameterization-based circular nozzle side air supply design method according to claim 3, wherein the design method comprises a model assembly process, and specifically comprises the following steps:
building a nozzle model based on BIM according to the nozzle parameters to obtain a nozzle BIM;
combining the nozzle BIM model with an air supply model of an air conditioner to obtain a heating ventilation BIM model;
acquiring BIM model data of each professional model of a building, a structure and heating ventilation, and performing overall assembly data combination to obtain an overall assembly model;
performing overall model improvement optimization analysis on the overall assembly model based on the process professional requirements and the BIM model standards of building, structure and heating ventilation professionals, and summarizing the improvement information of each professional model to obtain an improved scheme;
feeding back the improved schemes of the building and heating ventilation models to corresponding specialties;
and obtaining the models after professional improvement of the building and heating ventilation, and performing assembly circulation of the overall model again until all the professionals meet the requirements.
5. The BIM parameterization-based circular-nozzle side-blowing design method is characterized in that the design is a multi-strand parallel non-isothermal jet circular-nozzle side-blowing design, and parameterization data comprise:
the length of the range area of the jet flow and the acting distance of the jet flow;
the jet fall and the jet range area length;
the inclination angle of the nozzle, the jet fall and the length of the range area of the jet;
the diameter of the circular nozzle, the inclination angle of the nozzle, the air supply temperature difference, the length of a shooting range area of jet flow and the jet flow fall;
the air supply speed of the round nozzle, the inclination angle of the nozzle, the air supply temperature difference, the length of a shooting range area of jet flow and the jet flow fall;
the air supply quantity and the air supply speed of each round nozzle;
air conditioner cold load and total air supply volume of an air conditioning system;
the total air supply quantity and the number of the round nozzles of the air conditioning system are calculated;
the actual air supply speed of the circular nozzle and the total air supply quantity of the air conditioning system;
the temperature difference between the Archimedes number and the air supply, the diameter of the circular nozzle and the air supply speed of the actual circular nozzle;
actual jet fall, archimedes number and diameter of the circular nozzle;
the axial speed of the tail end of the jet flow, the Archimedes number and the air supply speed of the circular nozzle;
the lapping position of the upper boundary, the Archimedes number and the diameter of the round nozzle.
6. The BIM parameterization-based circular-nozzle lateral air supply design method of claim 1, further comprising:
acquiring a heating ventilation BIM model in the overall assembly model;
splitting the heating ventilation BIM model to obtain an air supply model of an air conditioner and an assembly component of a round nozzle;
carrying out parametric association and reassembly on the air conditioner air supply model and the round nozzle assembly component to obtain a parametrically driven heating ventilation BIM assembly model;
and recombining the heating ventilation BIM assembly model driven by parameterization and the overall assembly model to obtain the parameterization-driven overall assembly model.
7. The BIM parameterization-based circular-nozzle lateral air supply design method according to claim 6, wherein the overall assembly model further comprises:
performing data conversion based on virtual reality on the overall assembly model according to each professional model to obtain VR overall assembly model data;
importing the VR overall assembly model data and the model parameter data into a VR system to simulate the air supply process of the air conditioner, and obtaining multiple times of simulation data according to the simulation process;
calculating and analyzing abnormal data which do not accord with preset physical rules according to the simulation data, and performing correction analysis on the model according to the abnormal data to obtain VR model correction parameters;
and importing the VR model correction parameters into a VR system for parameter correction, and repeatedly simulating the air supply process of the air conditioner to obtain optimal simulation data.
8. The BIM parameterization-based circular-nozzle side-blowing design method according to claim 7, wherein the optimal simulation data further comprises:
carrying out model basic motion splitting on the optimal simulation data to obtain a plurality of basic model motion processes;
the complexity of the motion process of the basic model is obtained, and the motion process of the basic model is partially fused according to the complexity to obtain a plurality of simulation operation steps;
performing professional information correlation analysis on the VR overall assembly model in the simulation operation steps to obtain the relevant professional information corresponding to each simulation operation step;
acquiring user retrieval professional information, analyzing each piece of associated professional information, and marking a simulation operation step corresponding to the current associated professional information if the current associated professional information and the user retrieval professional information have the same professional information to obtain a retrieval result simulation operation step;
and summarizing all the search result simulation operation steps to obtain user search simulation step data, and displaying the user search simulation step data through a VR system.
9. A BIM parameterization-based circular-nozzle lateral air supply design system is characterized by comprising: the device comprises a memory and a processor, wherein the memory comprises a BIM parameterization-based circular-nozzle side air supply design program, and the BIM parameterization-based circular-nozzle side air supply design program realizes the following steps when being executed by the processor:
obtaining construction professional and process professional investment;
calculating and obtaining the cold load of the air-conditioning area according to the professional conditions of the building;
obtaining the acting distance of jet flow according to the construction professional conditions;
according to construction professional conditions, assuming jet fall;
selecting the average wind speed of a working area according to the process requirements;
selecting the axial speed of the tail end of the jet flow according to the process requirement and the specification;
selecting air supply temperature difference of an air conditioner according to process requirements;
calculating to obtain total air supply quantity according to the air supply air conditioner temperature difference and the air conditioner area cold load;
calculating to obtain the diameter of the circular nozzle according to the parameters;
calculating to obtain the air supply speed of the circular nozzle according to the parameters;
checking a calculation result, wherein the diameter of the circular nozzle is required to be between 0.2 and 0.8 meter, the air supply speed of the circular nozzle is required to be not more than 12m/s, and otherwise, the jet fall or the air supply temperature difference is reset;
calculating to obtain the air output of each circular nozzle;
calculating and determining the number of the nozzles;
calculating the Archimedes number of the system;
calculating to obtain the actual jet fall, the axial center speed of the tail end of the jet and the upper boundary lapping position;
checking that the difference between the actual jet fall and the assumed jet fall is not more than 0.2 m, and the difference between the actual value of the jet axis speed and the assumed value is not more than 0.05m/s;
if the above conditions are met, the design requirements are met; if not, resetting jet fall or air supply temperature difference and repeating the calculation to obtain the cold load step of the air conditioning area until the requirements are met;
if the abnormal information parameters are different from the specifications, calculating and analyzing abnormal information parameters, importing the abnormal information parameters into a BIM (building information modeling) model and generating an abnormal processing scheme;
and feeding back the exception handling scheme to the building and process major.
10. The BIM parameterization-based circular-nozzle lateral air supply design system according to claim 9, wherein the design system comprises a model assembly process, specifically:
building a nozzle model based on BIM according to the nozzle parameters to obtain a nozzle BIM;
combining the nozzle BIM model with an air supply model of an air conditioner to obtain a heating ventilation BIM model;
acquiring BIM model data of each professional model of a building, a structure and heating ventilation, and performing overall assembly data combination to obtain an overall assembly model;
performing overall model improvement optimization analysis on the overall assembly model based on the process professional requirements and the BIM model standards of building, structure and heating ventilation professionals, and summarizing the improvement information of each professional model to obtain an improved scheme;
feeding back the improved schemes of the building and heating ventilation models to corresponding specialties;
and obtaining the models after professional improvement of the building and heating ventilation, and performing assembly circulation of the overall model again until all the professionals meet the requirements.
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