CN110968932A

CN110968932A - Metal air duct product production management system based on BIM

Info

Publication number: CN110968932A
Application number: CN201910943456.4A
Authority: CN
Inventors: 刘桂平
Original assignee: Tianjin Octopus Electromechanical Equipment Co ltd
Current assignee: Tianjin Octopus Electromechanical Equipment Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-04-07

Abstract

The invention relates to a BIM-based production management system for a metal air duct product. The invention has the beneficial effects that: the air duct production process is automated and intelligentized; firstly, a sketch with composite requirements is formulated according to field requirements, and then sketch data is led into a BIM system to realize the manufacturing processes of accurate blanking, bending and fixing of the air pipe through the data control of production line machinery; in addition, the manufacturing process of the air pipe can be simulated in advance, so that the manufacturing process is optimized to the maximum extent, and the possibility of misoperation is reduced.

Description

Metal air duct product production management system based on BIM

Technical Field

The invention belongs to the field of air pipe preparation, and particularly relates to a BIM-based metal air pipe product production management system.

Background

The air pipe is a pipeline system for air conveying and distribution, and is generally formed by assembling a plurality of sections of air pipe monomers, and because the air pipe is generally longer, the firmness of the air pipe is a key factor for determining the service life of the air pipe in the assembling process. In addition, in order to realize reasonable and transmission routes in different environments, various special structure styles can exist in each air pipe unit, so that the special structure is manufactured and requires mature experience and manufacturing process, and errors are easy to occur, so that the special-shaped pipe body becomes a weak link of the whole air pipe.

Disclosure of Invention

In order to solve the technical problem, the invention provides a BIM-based metal air duct product production management system.

The technical scheme adopted by the invention is as follows: the production method of the metal air duct comprises the following specific steps:

firstly, manufacturing a draft of an air duct;

step two, preparing a single straight pipe air pipe according to an air pipe sketch, and flanging the edge to form a flange edge;

thirdly, preparing a single special pipe air pipe according to an air pipe sketch, and flanging the edge to form a flange edge;

and fourthly, reinforcing the flange edge to form a flange structure, and assembling and fixing one or more single straight pipe air pipes and one or more single special-shaped pipe air pipes to form the metal air pipes through the flange structure.

And in the second step, the preparation method of the monomer straight pipe air pipe comprises the following steps:

a1, cutting corners and shearing plates of the galvanized plates according to draft information of the air ducts;

step A2, the cut galvanized sheet is subjected to seaming assembly;

and step A3, bending and flanging the edge to form a flange structure, and forming the single straight pipe air pipe.

The preparation method of the single special-shaped pipe air pipe in the third step comprises the following steps:

step B1, cutting a semi-finished product from the galvanized sheet according to an air duct sketch;

step B2, performing seaming assembly on the semi-finished galvanized plate;

and step B3, bending and flanging the edge to form a flange structure, and forming the special pipe, the straight pipe and the air pipe.

Preferably, when the size of the large side of the air pipe is larger than 630mm, the method further comprises a reinforcing step;

when the size of the large side of the air duct is 630-1000mm, a step A0 is arranged before the step A1,

step A0, reinforcing the galvanized sheet by ribbing;

when the large side size of the air duct is larger than 1000mm, the step A4 is carried out after the step A3,

step A4, adopting any method of angle steel, flat steel, steel pipes, Z-shaped grooves and harness cord screws to reinforce the inside and outside of the pipe;

when the section of the air pipe is larger than 1250mm multiplied by 630mm, the four corners in the air pipe are reinforced by 90-degree inclined supports;

preferably, the angle steel, flat steel, steel pipe or ribbing is less than the flange structure height.

Preferably, the method further comprises a sealing step, wherein the sealing step is carried out on the flange structure, the inner side and the outer side of the joint of the branch pipe and the main pipe, and the bolt joint is sealed.

A production management system of a metal air duct product based on BIM is characterized in that an air duct sketch is manufactured by an Autodesk review in the production method of the metal air duct, and the production process of the metal air duct is controlled by the Autodesk simulation.

The specific process is as follows:

step S1, constructing a primary BIM model through Autodesk Revit according to the preparation requirement of the metal air duct;

step S2, checking and adjusting the primary BIM model, and confirming the secondary BIM model;

step S3, preparing a prefabricated product, carrying out secondary model adjustment according to product formation, and determining a final BIM model;

and step S4, importing the product information standard into an Autodesk Fabric control system, and generating a prefabricated product library in the BIM through the interaction module product information standard.

The product prefabricating and processing steps are as follows:

step S5, generating a prefabricated product according to the final BIM model information;

step S6, length optimization is carried out on the prefabricated product, and the consistency of the product specification form of the enterprise and the BIM model is realized;

step S7, the optimized model information is converted into processing machine data;

and step S8, transmitting the data to the matched production equipment to cut and blank the galvanized sheet.

Preferably, the prefabricated product is encoded in step S5, and the encoded information corresponds to the formed pipe fittings one by one.

The invention has the advantages and positive effects that:

1, the air duct production process is automated and intelligentized; firstly, a sketch with composite requirements is formulated according to field requirements, and then sketch data is led into a BIM system to realize the manufacturing processes of accurate blanking, bending and fixing of the air pipe through the data control of production line machinery; in addition, the manufacturing process of the air pipe can be simulated in advance, so that the manufacturing process is optimized to the maximum extent, and the possibility of misoperation is reduced;

2, the production line has high degree of mechanization and automation, greatly improves the manufacturing efficiency and the manufacturing precision of the air pipe, and reduces the construction cost; the air pipe is automatically ribbed, the strength is high, the appearance is attractive and tidy, and a zinc layer is not damaged; the production and installation are quick, the labor intensity is reduced, the labor efficiency is improved, the requirements of modern engineering are met, and the competitive advantage of installation units is improved;

drawings

FIG. 1 is a schematic view of the present invention for reinforcement of a rib; 1. pressing ribs;

FIG. 2 is a schematic view of the reinforcement of the angle iron of the present invention; 2. angle steel;

FIG. 3 is a schematic view of the reinforcement of the frame of the present invention; 3. reinforcing the frame;

FIG. 4 is a schematic view of the angle iron flange connection of the present invention; 41. angle iron flanges, 42, rivets, 43, bolts, 44 and nuts;

FIG. 5 is a schematic view of a co-planar flange configuration of the present invention; 51. flange corner, 52, flange edge.

Detailed Description

An embodiment of the present invention will be described below with reference to the drawings.

The production method of the metal air duct comprises the following steps:

firstly, manufacturing an air duct sketch according to manufacturing requirements, drawing a processing sketch according to a system served by an air duct according to a construction drawing and actual field conditions (air duct elevation, trend and other professional coordination conditions), numbering according to the system, and carrying out datamation on the manufacturing process of the air duct through corresponding data;

step two, preparing a single straight-pipe air pipe body according to an air pipe sketch, and processing a flange edge by using a bending machine to prepare a flange structure for connecting other single air pipes;

preparing a single special-shaped pipe air duct body according to the air duct sketch, and preparing a flange structure;

Selecting a galvanized sheet with a smooth surface and without serious scratch and corrosion of a cold-rolled sheet, and preventing angle steel from being seriously rusted and deformed; the thickness of the plate is defined as shown in table 1,

TABLE 1 Tuber pipe plate thickness table (mm)

The preparation method of the single straight pipe air pipe comprises the following steps:

a1, cutting corners and shearing plates of the galvanized plates according to draft information of the air ducts, and numbering according to the draft information;

step A2, the cut galvanized sheet is engaged and assembled to form a closed tubular structure, and a main body part of the single air duct is constructed;

step A3, bending and flanging the edge to form a flange structure, and forming a single straight pipe air pipe; specifically, flanges made of angle iron can be sleeved into the single straight pipe air duct body, the two flange sleeves are respectively attached to flange edges at two ends, the angle iron flange 41 and the flange edges are fixed by rivets 42 to form an angle iron flange structure, and when the angle iron flange structure is connected, as shown in fig. 4, the two angle iron flanges are fixedly connected with nuts 44 through bolts 43; or as shown in fig. 5, adjacent flange edges 52 may be connected by flange corners 51 and fastened by rivets, thereby forming a co-planar flange structure.

When the method is adopted for preparing the single air duct, when the large side of the air duct is larger than 630mm, the air duct needs to be reinforced in order to increase the stability of the air duct, when the large side of the air duct is 630-1000mm, step A0 is arranged before step A1, the galvanized sheet is ribbed 1, as shown in figure 1, the arrangement is regular, the intervals are uniform, the sheet surface is not deformed obviously, and then the ribbed or the galvanized sheet with Z-shaped grooves is cut; when the size of the large side of the air pipe is larger than 1000mm, after the step A3, the step A4 is carried out, the outer side of the manufactured single air pipe is reinforced, angle steel 2, flat steel, steel pipes or Z-shaped grooves are adopted for reinforcement, as shown in figure 2, or a reinforcing frame 3 is prepared, as shown in figure 3, and then the reinforcing frame is fixedly sleeved on the outer side of the single air pipe to realize the reinforcement effect, wherein the height of the angle steel, the flat steel, the steel pipes or the ribbing is smaller than the structural height of the flange, the arrangement is neat, the intervals are uniform and symmetrical and are not larger than 220mm, and the riveting with the air pipe is firm; when the section of the air duct is larger than 1250mm multiplied by 630mm, in order to keep the adjacent wall surfaces vertical to each other, the four corners in the air duct are reinforced by adopting 90-degree inclined supports. In addition, the internal reinforcement can be carried out by adopting a harness cord screw. When the length of the medium-pressure and high-pressure system air pipe is more than 1250mm, a reinforcing frame is adopted for reinforcing, and a reinforcing or reinforcing measure for preventing the expansion crack of a single seaming seam of the high-pressure system air pipe is also required.

The mode that also can adopt the harness cord screw rod of installing additional consolidates the tuber pipe, and intraductal harness cord screw rod that supports with is consolidated, and the tuber pipe inner wall is arranged in to its special packing ring external heat preservation tuber pipe, to not keeping warm tuber pipe or interior heat preservation tuber pipe, then put at the tuber pipe outer wall, and the harness cord screw rod should set up in tuber pipe center department, and when the tuber pipe section is great, should respectively add a harness cord screw rod support in the both sides that are close to the flange and consolidate. The air pipe of the purification air-conditioning system can not be reinforced on the inner wall of the pipe, and the outer wall of the pipe is reinforced by adopting triangular ribs, Z-shaped grooves, angle steel and the like.

Similar to the preparation process of the single air duct, the preparation method of the single special-shaped air duct comprises the following steps:

step B1, cutting a semi-finished product from the galvanized sheet according to the draft of the air duct, and numbering according to the draft information;

step B2, performing seaming assembly on the semi-finished galvanized plate to form a closed tubular structure, and constructing a main body part of the single air duct;

step B3, bending and flanging the edge to form a flange structure, and forming a single special-shaped pipe air pipe; the angle iron flange structure or the common plate flange structure can be manufactured in accordance with the single straight pipe air pipe.

Because the air duct production line and the construction site cannot be in the same place, the air duct production line and the construction site are processed into semi-finished products according to drawn sketches in a workshop, numbered according to a system, and assembled according to the serial numbers on the site.

In order to guarantee the transmission effect of the air pipe, the air pipe is required to be sealed, the flange angle position and the joint of the branch pipe and the main pipe are sealed, and the bolt joint is sealed. Sealing the low-pressure air pipe to a position 40-50 mm inside the pipe at the folding position of the air pipe joint part; the high-pressure air pipe is also sealed at the longitudinal bite of the air pipe and the composite part of the air pipe. The flange seal is preferably mounted adjacent the outer side of the flange or intermediate the flanges. When the flange sealing strips are overlapped on the flange end faces, the overlapping is about 30-40 mm. The joint of the angle iron flange needs to be sealed and leak-proof by glass cement, the joint seaming needs to be sealed and leak-proof by glass cement at the position 80mm downward from the flange angle, and the sealant is arranged on the positive pressure side of the air pipe.

A production management system for metal air duct products based on BIM is characterized in that an air duct sketch is manufactured by a metal air duct production method through an Autodesk review, a single straight-tube air duct and a single special-shaped air duct are manufactured on the basis of the sketch, prefabricated manufacturing information is led into an Autodesk noise control system, and the metal air duct production process is controlled through the Autodesk noise. The process is as follows:

The product prefabricating and processing steps are as follows:

step S5, generating a prefabricated product according to the final BIM model information, and coding the produced prefabricated product, wherein the coding information corresponds to the formed pipe fittings one by one;

The practical operation profile comprises the following steps: data collection, data sorting and analysis, difficult and complicated question answering, building of a BIM model, collision check of an integral model, submission of a collision report, design consultation, adjustment scheme issuing, adjustment of the BIM model, collision check of the integral model, confirmation of the BIM model, manufacturing of a prefabricated product, secondary adjustment of the model according to product formation, secondary confirmation of the BIM model, prefabricated processing of the product, issuing of data such as a product installation drawing and the like, and field construction and installation.

Wherein the product prefabricating and processing process is as follows:

1 prefabrication and preparation work: the application software Autodesk fibre manufacturing CAMduct can provide the user with tools for manufacturing HVAC ducts through innovative interfaces and comprehensive parameterized component libraries. Meanwhile, operation input sites can be added, so that the whole production process is accelerated. The Autodesk fabric CAMduct software sets air duct product parameters according to characteristics of air duct production equipment, and sets the air duct product parameters respectively according to the plate, the air duct form and the connection mode.

2, prefabricating and processing steps: performing product prefabrication treatment by using a BIM model;

loading a prefabricated part in the BIM, selecting a set sample plate, adding a corresponding air pipe system type, and loading a prefabricated service; selecting a pipeline system to be prefabricated, generating a prefabricated product, and selecting the type of the pipeline system; optimizing the length of the prefabricated product to realize the consistency of the product specification form of the enterprise and the BIM model; converting each optimized part into a product; transferring the processed model into processing machine data; processing the data through prefabricated processing machine software; typesetting the prefabricated product, adjusting the typesetting of the prefabricated product, and inputting the prefabricated product into a machine for cutting according to a drawing; in order to facilitate later transportation and installation, the prefabricated product needs to be coded; and the known drawings for transportation and installation are provided, and the completeness and integrity of transportation are ensured. The installation process has guidance basis, and the construction task can be completed quickly and conveniently.

Example (b):

a production management method of a metal air duct product based on BIM comprises the following specific preparation methods:

step 1, constructing a primary BIM model through Autodesk Revit according to the preparation requirement of a metal air duct;

step 2, checking and adjusting the primary BIM model, and confirming the secondary BIM model;

step 3, preparing a prefabricated product, carrying out secondary model adjustment according to product formation, and determining a final BIM model;

step 4, importing the product information standard into an Autodesk failure control system, and generating a prefabricated product library in a BIM (building information modeling) through the product information standard of an interaction module;

step 5, generating a prefabricated product according to the final BIM model information, and coding the produced prefabricated product, wherein the coding information corresponds to the formed pipe fittings one by one;

step 6, optimizing the length of the prefabricated product to realize the consistency of the product specification form of the enterprise and the BIM model;

step 7, converting the optimized model information into processing machine data;

step 8, transmitting the data to matched production equipment;

step 9, cutting and blanking the galvanized sheet to respectively form a single straight tube air tube plate and a single special-shaped tube air tube plate;

step 10, performing seaming assembly on the cut single straight pipe air pipe plate and the single special-shaped pipe air pipe plate galvanized plate, and preparing an angled iron flange structure or a common plate flange structure on the edges of the single straight pipe air pipe and the single special-shaped pipe air pipe to form a single straight pipe air pipe or a single special-shaped pipe straight pipe air pipe;

step 11, reinforcing a reinforcing frame of the galvanized plate, and fixing the reinforcing frame of the angle iron with the height not higher than that of an angle iron flange in the middle of the outer wall of the single air pipe;

and step 12, fixing the flange angle and the turned edge, and assembling and fixing one or more single straight pipe air pipes and one or more single special-shaped pipe air pipes to form the metal air pipes.

And step 13, sealing the joints of the flange structure, the branch pipe and the main pipe, the inside and the outside of the joints and the bolt joints by using a sealant.

By adopting the method, various processes are completed through a full-automatic assembly line, the production efficiency is high, the size is accurate, and the forming quality is good. The air leakage rate is obviously reduced, the energy is saved, the running cost of the main engine is reduced, and the long-term stability can be kept. The BIM-based production mode has the advantages that the production automation degree is high, the labor intensity is reduced, the labor efficiency is improved, the labor cost is reduced, and the requirements of modern engineering are met; and the installation and operation are simple, convenient and quick, the construction period can be shortened, the progress of engineering construction can be accelerated, and the noise pollution generated by manufacturing the air pipes on the construction site is reduced, so that the civilized construction is facilitated.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The production method of the metal air duct is characterized by comprising the following steps: the preparation method comprises the following steps:

firstly, manufacturing a draft of an air duct;

2. The method for producing a metal blast pipe according to claim 1, wherein: the preparation method of the monomer straight pipe air duct in the step two is as follows:

step A2, the cut galvanized sheet is subjected to seaming assembly;

3. The method for producing a metal blast pipe according to claim 1, wherein: the preparation method of the single special-shaped pipe air pipe in the third step comprises the following steps:

step B2, performing seaming assembly on the semi-finished galvanized plate;

4. The method for producing a metal blast pipe according to claim 2, wherein: when the size of the large side of the air pipe is larger than 630mm, the method also comprises a reinforcing step;

step A0, reinforcing the galvanized sheet by ribbing;

step A4, adopting any method of angle steel, flat steel, steel pipes, Z-shaped grooves and harness cord screws to reinforce the inside and outside of the pipe; when the section of the air pipe is larger than 1250mm multiplied by 630mm, the four corners in the air pipe are reinforced by 90-degree inclined supports.

5. The method for producing a metal blast pipe according to claim 4, wherein: the height of the angle steel, the flat steel, the steel pipe or the ribbing is less than the height of the flange structure.

6. The method for producing a metal blast pipe according to claim 5, wherein: the method also comprises a sealing step, wherein the inside and the outside of the joint of the flange structure, the branch pipe and the main pipe are sealed, and the joint of the bolt is sealed.

7. BIM-based metal air duct product production management system is characterized in that: the method of manufacturing a metal blast pipe as set forth in any of claims 1 to 6, wherein a draft of the blast pipe is created by an Autodesk review, and the process of manufacturing the metal blast pipe is controlled by Autodesk simulation.

8. The BIM-based metal duct product production management system of claim 7, wherein: the specific process is as follows:

9. The BIM-based metal duct product production management system of claim 8, wherein: the product prefabricating and processing steps are as follows:

10. The BIM-based metal air duct product production management system of claim 9, wherein: and in the step S5, the produced prefabricated product is coded, and the coded information corresponds to the formed pipe fittings one by one.