A modular prefabricated heat exchange room construction method based on BIM technology

Abstract

The present invention relates to a modular prefabricated heat exchange room construction method based on BIM technology, and belongs to the field of building construction technology. The method comprises the following steps: S1: on-site measurement and confirmation of the size of the room, the size of the pipeline, the parameters of the material and the equipment; S2: using the data in step S1 as input to perform BIM three-dimensional in-depth design to obtain a BIM design model; S3: modularizing the pipelines and equipment according to the BIM design model and deriving prefabrication processing drawings; S4: making the pipelines according to the processing drawings; S5: assembling the manufactured pipelines and the replaced equipment according to the modules; S6: scanning the assembled modules to obtain the actual module parameters after the assembly is completed; S7: scaling the module parameters and making a proportional reduction model by 3D printing; S8: assembling the reduced model and performing installation preview for the actual construction; the present invention solves the problem of collision and interference caused by the dense and staggered directions of the pipelines in the room during construction.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a modular prefabricated heat exchange room construction method based on BIM technology. Background Art

[0002] Due to the continuous development of science and technology, new technologies emerge every year, and the equipment brought by new technologies has different needs and changes in the process of operation. However, some heat exchange rooms that have been built have been used for a long time and the equipment has aged. The heat exchange power provided will be reduced and cannot meet the operation needs of existing equipment. In addition, due to the technical limitations of the construction at that time, it cannot achieve the existing energy conservation and environmental protection and reduce the operation and maintenance cost requirements. Therefore, it is necessary to update and upgrade the old room to meet the needs of the continuous development of the existing society.

[0003] The update and upgrade of the old computer room requires ensuring the correctness of the pipelines when connecting the computer room with other equipment. However, the various pipelines inside the computer room are intricate and the pipelines are densely intertwined. In order to avoid misaligned pipe connections and mismatched sizes during the replacement process, collisions and interferences may occur during the replacement construction, resulting in demolition and rework, which not only wastes materials and delays the construction period, but also increases project costs. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a modular prefabricated heat exchange room construction method based on BIM technology, which solves the problem of collision and interference during construction due to the complex pipelines and dense and staggered pipeline routes when updating and upgrading the old room.

[0005] The purpose of the present invention can be achieved by the following technical solution: A modular prefabricated heat exchange room construction method based on BIM technology, comprising the following steps:

[0006] S1: Conduct on-site measurement and confirmation of the dimensions of the machine room, the dimensions of the pipelines, the parameters of the materials and equipment;

[0007] S2: Using the data in step S1 as input to perform BIM three-dimensional in-depth design to obtain a BIM design model;

[0008] S3: Modularize the pipelines and equipment according to the BIM design model and export prefabrication drawings;

[0009] S4: Make the pipeline according to the processing drawings;

[0010] S5: Assemble the manufactured pipeline and the replaced equipment according to the modules;

[0011] S6: Scan the assembled module to obtain the actual module parameters after assembly;

[0012] S7: scaling the module parameters and making a scaled-down model by 3D printing;

[0013] S8: Assemble the reduced model and perform installation preview for the actual construction;

[0014] S9: After confirming that all pipelines are connected correctly during the assembly of the reduced model, the actual module installation is performed;

[0015] S10: Transport the assembled model to the site for installation.

[0016] As a preferred technical solution of the present invention, in step S2, the BIM design model includes a water pump module, a heat exchanger module, a first pipeline module and a second pipeline module, and the modules are connected by pipelines.

[0017] As a preferred technical solution of the present invention, the BIM design model is produced using Rhino as a middleware platform and a mechanical CAM modeling platform as a model input.

[0018] As a preferred technical solution of the present invention, in step S2, the BIM three-dimensional in-depth design includes module layout, equipment maintenance space, and pipeline interference relationship.

[0019] As a preferred technical solution of the present invention, in step S4, after the pipeline is manufactured, the pipeline is derusted, painted, and a component information QR code is affixed to the pipeline.

[0020] As a preferred technical solution of the present invention, in step S5, the support brackets are designed and manufactured according to each module model when installing the modules.

[0021] As a preferred technical solution of the present invention, in step S8, when installation misalignment occurs during the installation of the 3D printed model, the misaligned pipe needs to be marked and the model needs to be recalculated for re-production.

[0022] As a preferred technical solution of the present invention, in step S9, after each module is installed, a pressure test is performed on the module.

[0023] As a preferred technical solution of the present invention, in step S9, after the pressure test of each module is completed, overall anti-corrosion and thermal insulation construction is carried out and each module is labeled.

[0024] As a preferred technical solution of the present invention, in step S10, the site is positioned and marked according to the BIM design model and each module is installed according to the number.

[0025] The beneficial effects of the present invention are:

[0026] 1. Through BIM 3D in-depth design, the pipes and equipment inside the computer room are divided into multiple modules, and then the modules are connected by pipes. The complex overall design problems between the pipes and equipment are transformed into the problems of sorting and flange interfaces between standard independent pipes. Through layer-by-layer decomposition, the highly repetitive parts are extracted, and standardized and parameterized processing is implemented, which reduces the construction difficulty, improves the construction efficiency, and reduces the project cost;

[0027] 2. The actual model produced by BIM three-dimensional in-depth design is rescanned to obtain new parameters. Based on the parameters, a proportional reduction model is obtained by 3D printing. The reduced models are assembled to determine whether there are any structural problems and compared with each other. This avoids the situation in which the pipelines cannot be assembled due to interference caused by errors in the process of composing modules in the actual production process. It also solves the problem of collision and interference during construction caused by the complex pipelines in the computer room and the dense and intertwined pipeline directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a flow chart of the construction method of the present invention;

[0030] Figure 2 This is a schematic diagram of the BIM design model structure of the present invention; DETAILED DESCRIPTION

[0031] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0032] See also Figure 1-2 This embodiment provides a modular prefabricated heat exchange room construction method based on BIM technology, including the following steps:

[0033] S1: Conduct on-site measurement and confirmation of the dimensions of the machine room, the dimensions of the pipelines, the parameters of the materials and equipment, and check them against the CAD drawings during the construction of the machine room to ensure that the measured parameters are correct;

[0034] S2: Using the data in step S1 as input to perform BIM three-dimensional in-depth design to obtain a BIM design model. The model fully considers the conditions of the installation process, the requirements of electromechanical equipment and pipelines for the installation space, and reasonably determines the position and distance of the pipelines, so that pressurized pipes avoid non-pressurized pipes, small pipelines avoid large pipelines, simple construction avoids difficult construction, and pipelines with fewer accessories avoid pipelines with more accessories, which is conducive to construction operation, maintenance and replacement of pipe fittings;

[0035] S3: Modularize the pipelines and equipment according to the BIM design model and export prefabrication drawings;

[0036] S4: Make the pipeline according to the processing drawings;

[0037] S5: Assemble the manufactured pipeline and the replaced equipment according to the modules;

[0038] S6: Scan the assembled module to obtain the actual module parameters after the assembly is completed, so as to obtain the actual module parameters after the assembly is completed;

[0039] S7: scaling the module parameters and making a scaled-down model by 3D printing;

[0040] S8: Assemble the reduced model, perform installation preview for the actual construction, obtain a proportionally reduced model using the parameters of the module that is actually manufactured and assembled, and assemble the reduced model according to the actual installation steps. By assembling the reduced model, confirm whether the module in the actual manufacturing process is accurate;

[0041] S9: The installation of the reduced model is completed. After confirming that all pipelines are correctly connected during the assembly of the reduced model, the actual module installation is carried out;

[0042] S10: Transport the assembled model to the site for installation.

[0043] When updating and upgrading the old computer room, follow the above steps to first conduct on-site measurement and confirmation of the size, pipeline size, materials and equipment parameters of the old computer room, and then compare and confirm them with the drawings when the computer room was built. Then use BIM technology to carry out three-dimensional in-depth design, re-layout the original backward design and unreasonable design, and obtain a new BIM design model to meet the existing needs, and form modularization through redesign to facilitate the subsequent construction process and the subsequent design of other computer rooms when they are updated. When the new BIM design model is completed, the processing drawings are exported to make the pipelines. When the pipeline processing is completed, it is assembled according to the divided modules. After the assembly is completed, use a three-dimensional scanner to scan each module, and enter the scanned data into the 3D printer, and perform proportional scaling to make a small model, and then construct and install the small model according to the actual construction sequence. After confirming that the installation process is correct, the actual module is transported to the site for installation.

[0044] BIM technology is used to redesign the pipes and equipment in the old machine room and divide them into modules. Then 3D printing is used to create a small model of the actual manufactured module. The small model is installed to ensure that the actual module will not have installation errors due to pipe manufacturing errors or accumulated manufacturing errors during the installation process, ensuring that the actual construction and installation can be completed smoothly, reducing the number of rework, improving work efficiency, and reducing project costs.

[0045] In order to more conveniently divide the facilities in the computer room into modularization, in this embodiment, in step S2, the BIM design model includes a water pump module, a heat exchanger module, a first pipe module and a second pipe module. The modules are connected by pipes. The BIM design model is divided into multiple modules according to the design requirements and the arrangement of equipment and pipes, which is convenient for subsequent construction. The complex overall design problems between various pipes and equipment are converted into the sorting and flange interface problems between standard independent pipes. Through layer-by-layer decomposition, the highly repetitive parts are extracted to form modularization, and standardized and parameterized processing is implemented, which reduces the difficulty of construction.

[0046] In order to reduce errors and improve accuracy when performing BIM design, in one embodiment, BIM design model production uses Rhino as a middleware platform with a mechanical CAM modeling platform as a model input. Since BIM design software is not accurate enough in modeling some surfaces, using Rhino as a middleware platform with a mechanical CAM modeling platform as a model input can provide BIM software with a high-precision model through a dedicated mechanical modeling platform to reduce errors and improve design efficiency and quality.

[0047] In order to better avoid deviations during the installation of modules, in one embodiment, in step S2, the BIM three-dimensional in-depth design includes module layout, equipment maintenance space, and pipeline interference relationship. By optimizing the module layout in the computer room, space for personnel passage and equipment maintenance is reserved. By optimizing the pipeline avoidance relationship, the interwoven pipelines are made straight and orderly, presenting the natural beauty of the water pipes, achieving the best visual sensory quality, and reducing the pipeline interference and insufficient maintenance space during the installation of the modules.

[0048] When the pipeline is completed, in order to avoid confusion of the information of each pipeline during transportation and cause errors during installation, in one embodiment, in step S4, after the pipeline is completed, the pipeline is rust-removed, painted, and the component information QR code is pasted. In the actual installation process, due to the impact of short-term construction on the environment, the pipeline surface is often prone to rust, object adhesion, etc. The rust on the pipeline surface can be removed by rust removal and painting, and protective paint can be applied on the surface to increase the service life and aesthetics of the pipeline. Pasting the component information QR code on the pipeline can provide real-time basis for detection, maintenance and management. The information QR code generally contains basic information and management information such as the serial number, model, and material of the component. This not only improves the management efficiency of the pipeline components, but also facilitates the detection, maintenance and updating of the pipeline in the future.

[0049] In order to ensure that the module can be installed smoothly, in one embodiment, in step S5, supports and hangers are manufactured according to the model designs of each module when the module is installed. After the module division is completed, supports and hangers are manufactured according to the pipe connection positions in the modules. Support and hanger designs are performed for large pipelines and complex pipeline areas, and the support and hanger forms, steel types, welding methods, etc. are determined. After the design is completed, it is handed over to the design institute for support and hanger force calculation to ensure that the structural forces and the forces on the supports and hangers themselves are within a safe range.

[0050] In order to reduce the number of repeated reworks during the actual installation process and improve the efficiency of construction, in one embodiment, in step S8, when the 3D printed model is installed and misaligned, the misaligned pipe needs to be marked and the model needs to be recalculated to re-produce it. When an installation error occurs when installing the small model, the pipe parameters of the installation position and whether the installation position is accurate will be rechecked, and the erroneous pipe will be re-produced, thereby reducing the number of repeated constructions during the actual installation process and improving construction efficiency.

[0051] In order to ensure that the quality problems of each module will not cause the need to re-manufacture and re-install the modules during use, in one embodiment, in step S9, each module is subjected to a pressure test after installation. The pressure test can verify the integrity of the pipeline system to ensure that there are no failures, cracks or other damage to the pipeline connection. Through the pressure test, potential leaks can be found to avoid problems during normal use and ensure the safety of the pipeline. The performance of the pipeline system, such as flow rate, pressure, etc., may be affected by the quality and integrity of the pipeline connection. Through the pressure test, the normal operating performance of the pipeline system under the designed working conditions can be verified to ensure that the design requirements are met. At the same time, if the pipeline leaks or has other problems in actual use, the repair cost may be very high. Through the pressure test, potential problems can be found before the pipeline system is put into use, and repaired in time to avoid larger-scale maintenance costs in the future.

[0052] In order to extend the service life of the modules, in one embodiment, in step S9, after the pressure test of each module is completed, the overall anti-corrosion and thermal insulation construction is carried out and each module is labeled. The overall anti-corrosion and thermal insulation construction after the pressure test is completed can ensure that it can be used for a long time after the subsequent installation is completed, reduce the number of maintenance, and reduce maintenance costs. At the same time, labeling each module is convenient for knowing the installation position and installation order of each module more clearly during actual installation, thereby reducing construction time.

[0053] In order to improve construction efficiency, in one embodiment, in step S10, the site is positioned and marked according to the BIM design model and each module is installed according to the label. The BIM design model is installed in the on-site computer room to position and mark the installation position of each module, which facilitates the installation of each module and improves construction efficiency.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A modular prefabricated heat exchange room construction method based on BIM technology, characterized in that: The following steps are involved: S1: Conduct on-site measurement and confirmation of the dimensions of the machine room, the dimensions of the pipelines, the parameters of the materials and equipment; S2: Using the data in step S1 as input to perform BIM three-dimensional in-depth design to obtain a BIM design model; S3: Modularize the pipelines and equipment according to the BIM design model and export prefabrication drawings; S4: Make the pipeline according to the processing drawings; S5: Assemble the manufactured pipeline and the replaced equipment according to the modules; S6: Scan the assembled module to obtain the actual module parameters after assembly; S7: scaling the module parameters and making a scaled-down model by 3D printing; S8: Assemble the reduced model and perform installation preview for the actual construction; S9: After confirming that all pipelines are connected correctly during the assembly of the reduced model, the actual module installation is carried out; S10: transport the assembled model to the site for installation; In step S2, the BIM design model includes a water pump module, a heat exchanger module, a first pipeline module and a second pipeline module, and the modules are connected by pipelines; In step S2, the BIM three-dimensional in-depth design includes module layout, equipment maintenance space, and pipeline interference relationship; In step S5, when installing the modules, the support and hanger are manufactured according to the design of each module model, and the support and hanger are manufactured according to the pipe connection position in the module; In step S8, when the 3D printed model is installed and misaligned, the misaligned pipe needs to be marked and the model needs to be recalculated to be remade. When an installation error occurs when installing the small model, the pipe parameters at the installation position and whether the installation position is accurate will be rechecked, and the wrong pipe will be remade. In step S9, after each module is installed, a pressure test is performed on the module. The pressure test can verify the integrity of the pipeline system to ensure that there are no pipeline connection failures, cracks or other damage problems.

2. According to the BIM technology-based modular prefabricated heat exchange room construction method of claim 1, it is characterized by: The BIM design model production uses Rhino as a middleware platform and a mechanical CAM modeling platform as a model input.

3. According to the BIM technology-based modular prefabricated heat exchange room construction method of claim 1, it is characterized by: In step S4, after the pipeline is manufactured, the pipeline is derusted, painted, and a component information QR code is affixed to the pipeline.

4. According to the BIM technology-based modular prefabricated heat exchange room construction method of claim 1, it is characterized by: In step S9, after the pressure test of each module is completed, the overall anti-corrosion and thermal insulation construction is carried out and each module is labeled.

5. The method for constructing a modular prefabricated heat exchange room based on BIM technology according to claim 4 is characterized in that: In step S10, the site is positioned and marked according to the BIM design model and each module is installed according to the number.

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