CN112651067A - Prefabricated machine room assembly construction method and system based on BIM - Google Patents
Prefabricated machine room assembly construction method and system based on BIM Download PDFInfo
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Abstract
The invention discloses a prefabricated machine room assembly construction method and system based on BIM, wherein the method comprises the steps of establishing a BIM model of a refrigerating machine room, carrying out deepening treatment on the BIM model of the refrigerating machine room to obtain a deepened BIM model of the refrigerating machine room, carrying out modular splitting on the deepened BIM model of the refrigerating machine room to obtain a plurality of prefabricated modules, drawing a prefabricated processing drawing based on the prefabricated modules, sending the prefabricated processing drawing and a corresponding material list to a factory for processing, generating a digital identification of the processing module, and guiding transportation, acceptance and field installation of the module according to the digital identification of the processing module. The system comprises a BIM model establishing module, a BIM model deepening module, a BIM model splitting module, a prefabricated drawing module and a two-dimensional code generating module. By adopting the modular machine room assembly construction technology, the invention can effectively shorten the construction period of the machine room installation project, comprehensively improve the on-site production efficiency and the construction quality, and has important application value.
Description
Technical Field
The invention belongs to the technical field of electromechanical installation of buildings, and particularly relates to a prefabricated machine room assembling construction method and system based on BIM.
Background
The industrialization of electromechanical installation is the necessary way for the development of the building installation industry in China. According to the development process of building installation industry in the world, after the total value of domestic production reaches $ 1000~3000 per capita, the development of a novel electromechanical installation structural system and the realization of industrial production become the main way for overcoming the defects of the production mode of the traditional installation industry and promoting the good and fast development of the installation industry. In recent years, new technology in the building industry of China is rapidly developing and innovated, the design of an electromechanical system of a newly built building is increasingly complex, and equipment densification, system complication and pipeline centralization become main characteristics of a building machine room. However, the construction of the domestic electromechanical installation project is mainly carried out on site, and along with the gradual loss of high-quality technical workers in the building installation industry, the problems of construction resource waste, environmental pollution, construction safety and low efficiency of the building electromechanical installation project are obvious day by day, and the construction of a building machine room with equipment densification, system complication and pipeline centralization cannot be met.
Disclosure of Invention
In order to solve the problems, the invention provides a prefabricated machine room assembling construction method and a prefabricated machine room assembling construction system based on BIM (building information modeling), which aim to solve the problems that the site manufacturing and processing are mainly used in the field construction of the traditional building electromechanical installation, and the construction period and the engineering quality cannot be guaranteed.
In order to achieve the aim, the invention provides a prefabricated machine room assembly construction method based on BIM, which comprises the following steps:
creating a BIM model of a refrigeration machine room;
performing deepening processing on the BIM of the refrigeration machine room to obtain a deepened BIM of the refrigeration machine room;
carrying out modular splitting on the deepened BIM model of the refrigeration machine room to obtain a plurality of prefabricated modules;
drawing a prefabricated processing drawing based on the plurality of prefabricated modules;
sending the prefabricated processing drawing and the corresponding bill of materials to a factory for processing, and generating a digital identifier of a processing module;
and guiding the transportation, acceptance and field installation of the module according to the digital identification of the processing module.
According to an embodiment of the present invention, the creating of the BIM model of the refrigeration machine room includes: and modeling all electromechanical equipment in the refrigeration machine room by utilizing a BIM technology according to a design drawing and the original equipment size to obtain a BIM model of the refrigeration machine room.
According to a specific embodiment of the present invention, the deepening the refrigeration machine room BIM model to obtain a deepened refrigeration machine room BIM model includes: and rechecking and optimizing the pipeline arrangement, equipment foundation positioning, support and hanger design and installation detailed drawing in the BIM model of the refrigeration machine room to obtain the deepened BIM model of the refrigeration machine room corresponding to the actual construction size.
According to a specific embodiment of the present invention, the modularly splitting the deepened BIM model of the refrigeration machine room to obtain a plurality of prefabricated modules includes:
considering influence factors of processing, transportation and assembly, and splitting the deepened BIM model of the refrigeration machine room into a plurality of prefabricated modules according to the condition of a reserved hoisting hole on site, wherein the plurality of prefabricated modules comprise a freezing water pump module, a cooling water pump module, a water cooling unit module and a water collecting and distributing device module.
According to an embodiment of the invention, the prefabricated drawing comprises a part machining drawing and a part assembling drawing of a prefabricated module, wherein the part machining drawing comprises a plan view, an elevation view and a design specification of the prefabricated module, and the part assembling drawing comprises an equipment and interface positioning drawing and an assembling module thumbnail of the prefabricated module.
According to a specific embodiment of the present invention, the design specification further includes various technical construction specifications of the prefabricated module, prefabricated tolerance requirements, welding and heat treatment requirements, testing and inspection requirements, corrosion prevention requirements, packaging and transportation requirements, and module coding rules.
According to an embodiment of the present invention, the sending the prefabricated processing drawing and the corresponding bill of materials to a factory for processing and generating the digital identifier of the processing module includes: exporting the prefabricated processing drawing and the corresponding bill of materials, sending the prefabricated processing drawing and the corresponding bill of materials to a factory, processing the electromechanical components required by each prefabricated module according to the drawing and the bill of materials to obtain a processing module, and generating the two-dimensional code label of the processing module.
According to an embodiment of the invention, the two-dimensional code label comprises the serial number of the processing module, the production batch and the information of the welding seam and the pipeline.
According to a specific embodiment of the present invention, the guiding of the transportation, acceptance and field installation of the module according to the digital identification of the processing module comprises: and obtaining the code and the installation information of the corresponding module by scanning the two-dimensional code label, and guiding the working personnel to carry out loading transportation, acceptance inspection and field installation according to the code and the installation information.
A prefabricated computer lab assembly construction system based on BIM includes:
the BIM model creating module is used for creating a BIM model of a refrigeration machine room;
the BIM deepening module is used for deepening the refrigerating machine room BIM to obtain a refrigerating machine room deepening BIM;
the BIM model splitting module is used for performing modular splitting on the deepened BIM model of the refrigeration machine room to obtain a plurality of prefabricated modules;
the prefabricated processing drawing module is used for drawing prefabricated processing drawings according to the plurality of prefabricated modules;
and the two-dimension code generating module is used for generating the two-dimension code label of the processing module.
Compared with the prior art, the construction process blueprint is designed, the prefabricated module is disassembled and designed by utilizing the BIM technology, the electromechanical comprehensive deepening design is carried out by combining the actual construction material size, and the prefabricated processing drawing is drawn. And carrying out loading transportation and on-site assembly of the modules according to the on-site assembly sequence of the modules. By adopting the modular machine room assembly type construction technology, the invention can gradually replace the field operation of traditional machine room installation engineering workers, carry out factory prefabrication and field assembly, carry out production management in a centralized manner in a prefabrication and processing factory, combine the characteristics of programming, standardization and simplification of field assembly procedures, greatly avoid potential safety hazards possibly brought by the construction field operation, obviously reduce the generation amount of construction site construction waste, provide guarantee for field green civilized construction, and on the basis, the invention can effectively shorten the construction period of the machine room installation engineering and comprehensively improve the field production efficiency and the construction quality. The system is suitable for equipment rooms with dense equipment, complex systems and centralized pipelines. For example, a refrigeration machine room, a water supply and drainage machine room, a boiler machine room and the like have important application values.
Drawings
Fig. 1 is a flowchart of a prefabricated machine room assembly construction method based on BIM according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a prefabricated machine room assembly construction system based on BIM according to an embodiment of the present invention.
Detailed Description
The present invention is described in detail below with reference to specific embodiments in order to make the concept and idea of the present invention more clearly understood by those skilled in the art. It is to be understood that the embodiments presented herein are only a few of all embodiments that the present invention may have. Those skilled in the art who review this disclosure will readily appreciate that many modifications, variations, or alterations to the described embodiments, either in whole or in part, are possible and within the scope of the invention as claimed.
As used herein, the terms "first," "second," and the like are not intended to imply any order, quantity, or importance, but rather are used to distinguish one element from another. As used herein, the terms "a," "an," and other similar terms are not intended to mean that there is only one of the things, but rather that the pertinent description is directed to only one of the things, which may have one or more. As used herein, the terms "comprises," "comprising," and other similar words are intended to refer to logical interrelationships, and are not to be construed as referring to spatial structural relationships. For example, "a includes B" is intended to mean that logically B belongs to a, and not that spatially B is located inside a. Furthermore, the terms "comprising," "including," and other similar words are to be construed as open-ended, rather than closed-ended. For example, "a includes B" is intended to mean that B belongs to a, but B does not necessarily constitute all of a, and a may also include C, D, E and other elements.
The terms "embodiment," "present embodiment," "an embodiment," "one embodiment," and "one embodiment" herein do not mean that the pertinent description applies to only one particular embodiment, but rather that the description may apply to yet another embodiment or embodiments. Those skilled in the art will appreciate that any descriptions made in relation to one embodiment may be substituted, combined, or otherwise combined with the descriptions in relation to another embodiment or embodiments, and that the substitution, combination, or otherwise combination of the new embodiments as produced herein may occur to those skilled in the art and are intended to be within the scope of the present invention.
Example 1
Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention. Fig. 1 is a flowchart of a prefabricated machine room assembly construction method based on BIM according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
s1: creating a BIM model of a refrigeration machine room;
s2: performing deepening processing on the BIM of the refrigeration machine room to obtain a deepened BIM of the refrigeration machine room;
s3: carrying out modular splitting on the deepened BIM model of the refrigeration machine room to obtain a plurality of prefabricated modules;
s4: drawing a prefabricated processing drawing based on the plurality of prefabricated modules;
s5: sending the prefabricated processing drawing and the corresponding bill of materials to a factory for processing, and generating a digital identifier of a processing module;
s6: and guiding the transportation, acceptance and field installation of the module according to the digital identification of the processing module.
Specifically, in the step S1, in creating the BIM model of the refrigeration machine room, 1:1 visual modeling is performed on all electromechanical devices in the refrigeration machine room by using the BIM technology according to the design drawing and the original device size, so as to obtain the BIM model of the refrigeration machine room. Firstly, the sizes of valve components and equipment provided by manufacturers are determined according to a design blueprint and bidding, the drawing of an electromechanical full-professional model is completed, the processing, transportation and assembly requirements of assembly components need to be comprehensively considered in the model drawing process, and the equipment and pipelines in the model are subjected to standardized design. The overall space planning of the construction area, such as equipment function partition, a lifting channel, a support form, maintenance space and the like, is realized by separately arranging various electromechanical professional functions, optimizing and reducing the pipeline route, and fully reserving transportation and maintenance space and the like. Aiming at details such as equipment foundation, machine room drainage and the like, the connection with the specialties such as civil engineering, fine mounting and the like needs to be made, and accurate construction cross-bottom documents and drawings are provided.
Specifically, step S2 deepens the refrigeration machine room BIM model to obtain a refrigeration machine room deepened BIM model, and the piping arrangement, the equipment foundation positioning, the design of the bracket and the hanger, and the installation detailed drawing in the refrigeration machine room BIM model need to be rechecked and optimized to obtain the refrigeration machine room deepened BIM model corresponding to the actual construction size. In order to ensure that the built BIM model is relatively uniform with the actual construction size, reduce later-stage adjustment and facilitate installation, the embodiment of the invention adopts a two-three-dimensional integrated deepened design mode to design a process blueprint, creates a deepened BIM model of a refrigeration machine room, and optimizes the original pipeline elevation, equipment, pipeline arrangement, foundation positioning, support and hanger design and installation large sample detailed drawings by utilizing the characteristic of BIM technical visualization, thereby further improving the overall effect of machine room arrangement. After the equipment foundation model is built, managers need to recheck the size and position of the foundation equipment, feed the rechecked size and position back to the deepened model and derive an equipment positioning diagram, and on the basis, the construction allowable error and the factory prefabrication processing efficiency are comprehensively considered to synchronously correct the model and the site.
Specifically, the step S3 is to split the refrigeration machine room deepening BIM model in a modularized manner to obtain a plurality of prefabricated modules, and the refrigeration machine room deepening BIM model is split into the plurality of prefabricated modules according to the conditions of on-site reserved hoisting holes under the condition that influence factors of processing, transportation and assembly are comprehensively considered, wherein the plurality of prefabricated modules include a chilled water pump module, a cooling water pump module, a water chiller module and a water collector module. Module splitting also requires consideration of the following factors: in consideration of installation efficiency and convenience, the higher the component assembly rate is, various devices and pipelines can be integrated to the maximum extent, the arrangement of all parts is more reasonable, and when the modules are divided, the module division fineness is reduced as much as possible. Because the installation engineering modularization computer lab member is mostly through mechanical connection modes such as flange between the component, consequently utilize the flange of valve as the head and the tail end of component as far as possible in the module split process, through reducing the quantity of connecting elements such as flange, the wholeness of furthest retaining the pipeline section reduces the hidden danger of leaking of component junction. Meanwhile, in the module splitting process, factors such as the hoisting capacity of hoisting equipment on a construction site, the size of a hoisting opening reserved on the site, transportation height, width and weight limitations, road condition limitations and the like need to be considered. For example, when the pump module is designed, the pump module mainly includes components such as a water pump, a water pump shock mount, a stopper, a pipeline valve accessory, a module frame, a drain pipe, and an interface. The pump unit module is designed to meet the relevant regulations of the national current standard, regulations and standard atlas. And after the scheme design of the module is finished, related parties such as a design institute and a Party A shall be reported for auditing, so that the safety of the building and the structure is ensured by the load of the assembled unit. The number of the water pumps contained in a single pump set module is not more than 3, and each water pump belongs to the same system, and when the function design of the water pump in the module is 2 for 1, the spare water pump is arranged in the middle. When the outlet pipeline of the parallel water pump is connected with the main pipe, a form of oblique insertion along the water flow is adopted, and the included angle is not more than 60 degrees. When the size or the mass of the pump unit module is too large, the split design is considered, the requirements of the transportation and hoisting process are met, but the integral size design is not suitable to exceed 4m in length, 3m in depth and 3m in height, and the total mass of the module is not more than 10 t. When the split type design is adopted, each assembly component is preferably bolted by a bolt bolting process, and the type of a connecting bolt is not less than M16; the pipeline is preferably connected by cold connection modes such as a loop flange, a hoop, a screw thread and the like. When the pump unit module is connected with other pipelines or modules, the consistency of the interfaces of the two modules is ensured according to the connection form, for example: flange connection, flange type of connecting two ends, bolt interface positioning and the like. When designing the pipeline and valve set module, the pipeline and valve set module mainly comprises components such as pipelines, valve accessories, butt joints and the like. When the pipeline and valve group module is designed, the sizes of internal valve accessories and pipe sections of the pipeline and valve group module are consistent with a design drawing, the long edge of the whole size is not more than 6m, the wide edge is not more than 2m, and when the module is connected with other pipelines or modules, the interfaces are required to be consistent. Size or angle parameters which are difficult to control can be combined into the same pipeline component, and elbows and downstream tee joints of pipelines are avoided as much as possible during division.
Specifically, step S4 is to draw a prefabrication drawing based on the plurality of prefabricated modules, where the prefabrication drawing includes a part machining drawing and a part assembly drawing of the prefabricated modules, where the part machining drawing includes, but is not limited to, a plan view, an elevation view and a design specification of the prefabricated modules, and the design specification further includes various technical construction specifications (including conventional technical specifications and special technical specifications), a prefabrication tolerance requirement, a welding requirement, a heat treatment requirement, a test requirement and an inspection requirement, an anticorrosion requirement, a packaging and transportation requirement, and a module coding rule of the prefabricated modules. The component assembly drawing comprises a device and interface positioning drawing of a prefabricated module and a large drawing of an assembly module. After the deepening design is finished, in order to ensure that the component module reaches the machining standard of mechanical parts, the machining efficiency and the assembly precision are improved, the deepening model is further refined and perfected, and a digitalized device and modeling software are utilized to draw and derive a module and a high-precision component machining drawing, including but not limited to an assembly drawing and a part machining drawing in CAD formats such as a device and interface positioning drawing of the prefabricated module, an assembly module thumbnail drawing, an international standard ISO standard isometric measurement machining drawing and the like, so that the assembly drawing and the part machining drawing are conveniently delivered to a prefabricated component processing factory with a complete set of component machining production line for reference machining.
Specifically, step S5 sends the prefabricated processing drawing and the corresponding bill of materials to a factory for processing, generates a digital identifier of a processing module, sends the prefabricated processing drawing and the corresponding bill of materials to the factory, processes electromechanical components required by each prefabricated module according to the drawing and the bill of materials to obtain the processing module, and generates a two-dimensional code label of the processing module, wherein the two-dimensional code label includes the serial number, the production batch, and the information of the welding line and the pipeline of the processing module. After the prefabricated drawing is drawn, the prefabricated drawing and the corresponding bill of materials are uniformly sent to a component processing factory according to a required construction progress plan after the project management personnel review, and the module component is prefabricated and processed in a factory. In order to ensure the module prefabrication precision, in addition to ensuring the quality of raw materials, the factory processing equipment and process are suitable to adopt advanced technologies such as derusting by a sand blasting furnace, plasma cutting, automatic welding by a machine and the like. The accurate control of the actual welding socket depth and the welding seam width of the pipe fitting and the pipeline connecting flange is ensured, the welded component is rechecked, and the component processing error range is controlled within +/-3 mm. When the electromechanical components required by each module are prefabricated and processed in a factory, namely, mechanical flow manufacturing is carried out in a factory, a plasma pipeline cutting machine is adopted for cutting and blanking pipelines, and the cutting quality meets the following requirements: the surface of the notch is smooth, the size is correct, and the phenomena of cracks, heavy skin, burrs, convex-concave, necking, slag, oxides, scrap iron and the like are avoided; the inclination deviation of the cut section of the tube is not more than 1% and not more than 3mm of the outer diameter of the tube. The full-automatic welding machine is adopted for welding, the appearance of the welding line is attractive, the defects of slag inclusion, cracks and the like of the welding line are thoroughly eliminated, and the quality of the welding line is ensured. And error control, namely, a pipeline welding platform is adopted, so that the perpendicularity of the flange and the pipeline is ensured, and the perpendicularity error of the flange is controlled. Aiming at the phenomenon that the dimension error of pipe fittings such as outsourcing elbows and the like is large, a method of measuring and correcting one by one is adopted, and the dimension error of a component is guaranteed to be controlled within +/-0.5 mm. After the module is prefabricated, the module can be digitally identified by using the internet of things technology according to the module code, and because the pipeline connection mode is mainly notch welding during the factory processing of the component, the embodiment of the invention generates the welded junction two-dimensional code label by using corresponding software according to the actual condition of the project, thereby facilitating the information tracing of the welded joint and the pipeline in the operation and maintenance period of a machine room.
Specifically, step S6 directs transportation, acceptance, and field installation of the module according to the digital identifier of the processing module, that is, obtains the code and installation information of the corresponding module by scanning the two-dimensional code tag, and directs the worker to perform loading transportation, acceptance, and field installation according to the code and installation information. Before loading, the digitalized identification of the module is delivered to a construction site along with a module loading list after delivery registration, and site management personnel organizes workers and machines according to the loading list to carry out unloading, registration and acceptance check. And (4) for the qualified modules, transporting the modules to a turnover field outside the installation area along a specified line by adopting horizontal transportation equipment according to the reverse sequence of the loading list, and placing the signboard according to the planned field and the construction sequence. And (4) formulating different transportation modes according to the size and the weight of the prefabricated assembly unit and combined transportation and hoisting conditions. The weight of the module is used as a main index, and a proper module segmentation mode is selected from four aspects of comprehensive cost, process difficulty, processing period and safety. In the transportation process of the assembly module, stable transportation is guaranteed, the starting direction of the transportation points is set according to the arrangement direction of the modules, the final in-place direction is kept consistent for facilitating the subsequent hoisting in place, and steering is avoided in the hoisting in-place process of the assembly module. The assembly site and path, and the assembly sequence are planned, so that the main pipeline connection, the valve short pipe assembly and other contents are orderly carried out, and all areas are constructed in parallel without mutual interference. In the actual assembly construction process, the links are multiple, the process is complex, and the construction error cannot be avoided. The accumulated error can be effectively eliminated by planning the assembly line, setting a compensation section and a control section and utilizing a recursive construction method. The module needs to be checked and accepted when entering the field, namely, the two-dimension code is checked and accepted, equipment can be positioned by scanning the code, and the field construction is guided by utilizing the BIM visualization technology. And (3) paying off by adopting the cooperation of an infrared level meter and a total station, marking the central line and the side line of each module on site according to the drawing size requirement, and rechecking the basic elevation. The accumulated error is eliminated by planning an assembly line, setting a compensation section and a control section and utilizing a recursive construction method. The control section is firstly assembled in place, other assembly modules connected with the control section are sequentially assembled on the same assembly line, errors possibly occurring in each interface are accumulated to the last compensation section, and the errors are eliminated in a field prefabrication mode of the compensation section. Besides the auxiliary elimination of the assembly errors through the assembly path planning, the assembly process is carried out according to the principle of first main and second, first big and then small, and first inside and then outside, and the prefabrication and construction errors are accumulated to the tail end of the equipment port and the pipeline to be eliminated. Wherein, the compensation section should be set up in the elbow department of convenient construction, simultaneously, reduces the compensation section size. The freezing water pump module and the cooling water pump module are in place according to the positions of the drawings, and accurate alignment of the pipeline interfaces between the modules is ensured. And the water cooling unit module and the water collecting and distributing device module are assembled on site in the machine room according to the module assembly drawing. During assembly, the module carrying, main pipeline connection, valve short pipe assembly and the like are orderly carried out, and all areas are constructed in parallel and do not interfere with each other.
Example 2
The embodiment of the invention also provides a prefabricated machine room assembly construction system based on BIM, which comprises:
the BIM model creating module 1 is used for creating a BIM model of a refrigeration machine room;
the BIM deepening module 2 is used for deepening the refrigerating machine room BIM to obtain a refrigerating machine room deepening BIM;
the BIM model splitting module 3 is used for performing modular splitting on the deepened BIM model of the refrigeration machine room to obtain a plurality of prefabricated modules;
the prefabricated processing drawing module 4 is used for drawing prefabricated processing drawings according to the plurality of prefabricated modules;
and the two-dimension code generating module 5 is used for generating a two-dimension code label of the processing module.
The invention utilizes BIM technology to split and design prefabricated modules, combines the sizes of construction materials, carries out deepened design and draws a prefabricated drawing, delivers the drawn prefabricated drawing to a factory for prefabricated processing, carries out mechanized flow manufacturing on each module component, utilizes corresponding software to generate a welding port two-dimensional code label, enters the field for acceptance inspection at reasonable time according to a construction plan, and utilizes a code scanning to guide the assembly and splicing of finished prefabricated components on the spot, thereby facilitating the information tracing of welding lines and pipelines in the operation and maintenance period of a machine room and realizing the efficient construction of prefabricated machine room assembly. The invention puts the earlier stage work of the assembly machine room in the processing factory, greatly shortens the field construction time, saves the construction period by 23 days, further puts the data machine room into use in advance, and can increase million yuan rent for owners according to market price estimation. Meanwhile, factory automation equipment is used for welding, so that the construction quality is improved. The invention organically combines the high-efficiency machine room concept and the assembly type process, and realizes the symbolic achievement of the high-efficiency assembly type machine room of the data center.
The concepts, principles and concepts of the invention have been described above in detail in connection with specific embodiments (including examples and illustrations). It will be appreciated by persons skilled in the art that embodiments of the invention are not limited to the specific forms disclosed above, and that many modifications, alterations and equivalents of the steps, methods, apparatus and components described in the above embodiments may be made by those skilled in the art after reading this specification, and that such modifications, alterations and equivalents are to be considered as falling within the scope of the invention. The scope of the invention is only limited by the claims.
Claims (10)
1. A prefabricated machine room assembling construction method based on BIM is characterized by comprising the following steps:
creating a BIM model of a refrigeration machine room;
performing deepening processing on the BIM of the refrigeration machine room to obtain a deepened BIM of the refrigeration machine room;
carrying out modular splitting on the deepened BIM model of the refrigeration machine room to obtain a plurality of prefabricated modules;
drawing a prefabricated processing drawing based on the plurality of prefabricated modules;
sending the prefabricated processing drawing and the corresponding bill of materials to a factory for processing, and generating a digital identifier of a processing module;
and guiding the transportation, acceptance and field installation of the module according to the digital identification of the processing module.
2. The BIM-based prefabricated machine room assembly construction method according to claim 1, wherein the step of creating a BIM model of the refrigeration machine room comprises the following steps: and modeling all electromechanical equipment in the refrigeration machine room by utilizing a BIM technology according to a design drawing and the original equipment size to obtain a BIM model of the refrigeration machine room.
3. The BIM-based prefabricated machine room assembling construction method according to claim 1, wherein the deepening the refrigeration machine room BIM model to obtain the refrigeration machine room deepened BIM model comprises the following steps: and rechecking and optimizing the pipeline arrangement, equipment foundation positioning, support and hanger design and installation detailed drawing in the BIM model of the refrigeration machine room to obtain the deepened BIM model of the refrigeration machine room corresponding to the actual construction size.
4. The BIM-based prefabricated machine room assembling and constructing method according to claim 1, wherein the step of modularly splitting the deepened BIM model of the refrigeration machine room to obtain a plurality of prefabricated modules comprises the following steps:
considering influence factors of processing, transportation and assembly, and splitting the deepened BIM model of the refrigeration machine room into a plurality of prefabricated modules according to the condition of a reserved hoisting hole on site, wherein the plurality of prefabricated modules comprise a freezing water pump module, a cooling water pump module, a water cooling unit module and a water collecting and distributing device module.
5. The BIM-based prefabricated machine room assembly construction method according to claim 1, wherein the prefabricated drawing comprises a part processing drawing and a part assembly drawing of a prefabricated module, wherein the part processing drawing comprises a plan view, an elevation view and a design specification of the prefabricated module, and the part assembly drawing comprises a device and interface positioning drawing and an assembly module thumbnail drawing of the prefabricated module.
6. The BIM-based prefabricated machine room assembly construction method as claimed in claim 5, wherein the design specifications further comprise various technical construction specifications of prefabricated modules, prefabricated tolerance requirements, welding and heat treatment requirements, testing and inspection requirements, anticorrosion requirements, packaging and transportation requirements and module coding rules.
7. The BIM-based prefabricated machine room assembly construction method of claim 1, wherein the step of sending the prefabricated drawing and the corresponding bill of materials to a factory for processing and generating the digital identification of the processing module comprises the steps of: exporting the prefabricated processing drawing and the corresponding bill of materials, sending the prefabricated processing drawing and the corresponding bill of materials to a factory, processing the electromechanical components required by each prefabricated module according to the drawing and the bill of materials to obtain a processing module, and generating the two-dimensional code label of the processing module.
8. The BIM-based prefabricated machine room assembling and constructing method according to claim 7, wherein the two-dimension code label comprises the serial number of the processing module, the production batch and the welding seam and pipeline information.
9. The BIM-based prefabricated machine room assembly construction method according to claim 1, wherein the guiding of the transportation, acceptance and field installation of the module according to the digital identification of the processing module comprises: and obtaining the code and the installation information of the corresponding module by scanning the two-dimensional code label, and guiding the working personnel to carry out loading transportation, acceptance inspection and field installation according to the code and the installation information.
10. The utility model provides a prefabricated computer lab assembly construction system based on BIM which characterized in that includes:
the BIM model creating module is used for creating a BIM model of a refrigeration machine room;
the BIM deepening module is used for deepening the refrigerating machine room BIM to obtain a refrigerating machine room deepening BIM;
the BIM model splitting module is used for performing modular splitting on the deepened BIM model of the refrigeration machine room to obtain a plurality of prefabricated modules;
the prefabricated processing drawing module is used for drawing prefabricated processing drawings according to the plurality of prefabricated modules;
and the two-dimension code generating module is used for generating the two-dimension code label of the processing module.
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