阅读说明：本技术 基于bim的内保温消音风管产品生产管理系统 (BIM-based production management system for internal heat-preservation silencing air pipe products ) 是由 刘桂平 于 2019-09-30 设计创作，主要内容包括：本发明涉及一种基于BIM的内保温消音风管产品生产管理系统,在风管咬口制作和法兰成型后,在风管内壁粘贴保温棉,本发明中的内保温消音风管生产方法通过Autodesk Revit制作风管草图,单体直管风管和单体异形风管均在这个草图的基础上进行制作,将预制的制作信息导入Autodesk Fabrication控制系统,通过Autodesk Fabrication控制内保温消音风管生产过程。本发明的有益效果是：将风管生产过程自动化,智能化；先根据现场需求制定复合要求的草图,再将草图数据导入到BIM系统中通过对生产线机械的数据化控制,实现风管的精确下料、弯折、固定的制作过程；另外可预先对风管的制作过程进行模拟,最大限度的优化了制作工艺,降低了失误操作的可能性。(The invention relates to a BIM-based production management system for an internal heat-preservation and noise-reduction air pipe product, wherein heat-preservation cotton is stuck to the inner wall of an air pipe after an air pipe bite is manufactured and a flange is formed. 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.)

1. The production method of the internal heat-preservation and noise-reduction air pipe is characterized by comprising the following steps: the preparation method comprises the following 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 of the straight pipe air pipe to form a flange edge for connecting other single air pipes;

step three, preparing a single special-shaped pipe air pipe according to an air pipe sketch;

fourthly, attaching inner thermal insulation materials to the inner walls of the prepared single straight-tube air pipes and the prepared single special-shaped air pipes;

and fifthly, reinforcing the flange edge through an angle iron flange or a flange angle, and assembling and fixing one or more monomer straight pipe air pipes and one or more monomer special-shaped pipe air pipes to form an internal heat-preservation noise-reduction air pipe.

2. The method for producing the internal heat-preservation and noise-reduction air pipe according to claim 1, characterized in that: the preparation method of the monomer straight pipe air duct in the step two is as follows:

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;

step A3, bending and flanging the edge to form a flange structure, and forming a 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.

3. The method for producing the internal heat-preservation and noise-reduction air pipe according to claim 1, characterized in that: and in the fourth step, the inner heat-insulating material is attached to the inner walls of the single straight-tube air pipes and the single special-shaped air pipes by spraying glue and pasting cotton in sequence.

4. The production method of the internal heat-preservation and noise-reduction air pipe according to claim 2, characterized in that: when the size of the large side of the air pipe is larger than 630mm, the method also 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.

5. The method for producing the internal heat-preservation and noise-reduction air pipe according to claim 1, characterized in that: the step five, mounting the angle iron flanges, namely sleeving the angle iron flanges on the single air pipes, and then fixedly connecting the angle iron flanges with flange edges to form a flange structure;

mounting the flange corners in the fifth step specifically comprises placing the flange corners on two adjacent turned edges and fixedly connecting the flange corners through bolts;

the branch pipe is connected with the main pipe by adopting a joint seam or riveting the main pipe with a blind rivet on the reverse side;

the connection between the main pipes is fixed by bolts to contact with the flange angles;

preferably, when the size of the large side of the air pipe exceeds 450mm, a flange fixing clamp is arranged on the two connected flanges;

preferably, the side length of the air pipe is 0-200mm, a flange fixing clip is not required to be mounted, the side length of the air pipe is 200-550mm, one flange fixing clip is mounted in the middle of the air pipe, two flange fixing clips are mounted at equal intervals of 1000mm and 550mm, and one flange fixing clip is mounted at each interval of 250mm when the length of the air pipe exceeds 1000 mm.

6. The method for producing the internal heat-preservation and noise-reduction air pipe according to claim 5, characterized in that: the method also comprises a sealing step, wherein the flange angle and the inner side and the outer side of the joint of the branch pipe and the main pipe are sealed, and the bolt joint is sealed.

7. Interior heat preservation amortization tuber pipe product production management system based on BIM, its characterized in that: the method for producing the galvanized sheet internal heat-preservation and noise-reduction air pipe as recited in any one of claims 1 to 6, wherein an air draft is made through Autodesk review, and the production process of the galvanized sheet internal heat-preservation and noise-reduction air pipe is controlled through Autodesk simulation.

8. The BIM-based production management system for internal thermal insulation and noise reduction air ducts of claim 7, wherein: the specific process is as follows:

step S1, constructing a primary BIM model through an Autodesk Revit according to the preparation requirement of the internal heat-preservation and noise-reduction air pipe;

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.

9. The BIM-based production management system for internal insulation and noise reduction air ducts of claim 8, wherein: 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.

10. The BIM-based production management system for internal insulation and noise reduction air ducts 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.

Technical Field

The invention belongs to the field of air pipe preparation, and particularly relates to a BIM-based production management system for an internal heat-preservation and noise-reduction air pipe product.

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. When a heat-insulating ventilating duct is required in a building, the general method is that after a metal air duct main body is manufactured and hoisted, a heat-insulating material is pasted on the outer surface of the air duct through aerial operation, the method needs a large manufacturing field and sufficient operation space, and the quality of a finished product is greatly influenced by the technical level of constructors.

Disclosure of Invention

In order to solve the technical problem, the invention provides a BIM-based production management system for an internal heat-insulation silencing air pipe product.

The technical scheme adopted by the invention is as follows: the production method of the internal heat-preservation and noise-reduction air pipe 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 of the straight pipe air pipe to form a flange edge for connecting other single air pipes;

step three, preparing a single special-shaped pipe air pipe according to an air pipe sketch;

fourthly, attaching inner thermal insulation materials to the inner walls of the prepared single straight-tube air pipes and the prepared single special-shaped air pipes;

fifthly, reinforcing the flange edge through an angle iron flange or a flange angle, and assembling and fixing one or more monomer straight pipe air pipes and one or more monomer special-shaped pipe air pipes to form an internal heat-preservation noise-reduction air pipe.

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;

step A3, bending and flanging the edge to form a flange structure, and forming a 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.

And in the fourth step, the inner heat-insulating material is attached to the inner walls of the single straight-tube air pipes and the single special-shaped air pipes by spraying glue and pasting cotton in sequence.

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, in the step five, the installation of the angle iron flange is specifically that the angle iron flange is sleeved on the single air pipe and is fixedly connected with the flange edge to form a flange structure;

mounting the flange corners in the fifth step, namely placing the flange corners on two adjacent turned edges and fixedly connecting the flange corners through bolts;

the branch pipe is connected with the main pipe by adopting a joint seam or riveting the main pipe with a blind rivet on the reverse side;

the connection between the main pipes is fixed by bolts to contact with the flange angles;

preferably, when the size of the large side of the air pipe exceeds 450mm, a flange fixing clamp is arranged on the two connected flanges;

preferably, the side length of the air pipe is 0-200mm, a flange fixing clip is not required to be mounted, the side length of the air pipe is 200-550mm, one flange fixing clip is mounted in the middle of the air pipe, two flange fixing clips are mounted at equal intervals of 1000mm and 550mm, and one flange fixing clip is mounted at each interval of 250mm when the length of the air pipe exceeds 1000 mm.

Preferably, the method further comprises a sealing step, wherein the flange angle and the joint of the branch pipe and the main pipe are sealed, and the bolt joint is sealed.

A production management system of an internal heat-preservation and noise-reduction air pipe product based on BIM is characterized in that an air pipe sketch is manufactured through an Autodesk review in the production method of the internal heat-preservation and noise-reduction air pipe, and the production process of the internal heat-preservation and noise-reduction air pipe is controlled through Autodesk noise.

The specific process is as follows:

step S1, constructing a primary BIM model through an Autodesk Revit according to the preparation requirement of the internal heat-preservation and noise-reduction air pipe;

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;

3 the heat preservation amortization tuber pipe in this scheme of adoption preparation has saved the on-the-spot heat preservation construction process of tuber pipe, effectively improves on-the-spot tuber pipe installation effectiveness, and the tuber pipe adopts full-automatic production water line processing, and product quality is controllable

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;

FIG. 6 is a schematic view of the structure of an internal heat-insulating and noise-reducing air duct; 61. monomer tuber pipe, 62, flange structure, 63, interior insulation material.

Detailed Description

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

As shown in fig. 6, the inner heat-insulating silencing air duct is formed by adhering an inner heat-insulating material 63 to the inner wall of the single air duct 61, and the production method of the inner heat-insulating silencing 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;

step three, preparing a single special-shaped pipe air duct body according to the air duct sketch, and preparing a flange structure 62;

fourthly, attaching inner thermal insulation materials to the inner walls of the prepared single straight-tube air pipes and the prepared single special-shaped air pipes;

fifthly, reinforcing the flange edge through an angle iron flange or a flange angle, and assembling and fixing one or more monomer straight pipe air pipes and one or more monomer special-shaped pipe air pipes to form an internal heat-preservation noise-reduction air pipe.

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 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, 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 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, the reinforcing frame is fixedly sleeved on the outer side of the single air pipe to realize the reinforcing effect, or a harness cord screw is additionally arranged for reinforcing the air pipe, wherein the height of the angle steel, the flat steel, the steel pipes or the press bars is smaller than the height of the flange structure, the angle steel, the flat steel, the steel pipes or the press bars are arranged in order, the intervals are uniform and symmetrical and are not larger; 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.

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.

After the single straight pipe air pipe and the single special pipe air pipe are manufactured, the inner thermal insulation material is attached to the inner wall of the single straight pipe air pipe and the single special pipe air pipe, the environment-friendly glue is evenly coated on the inner wall of a galvanized plate of the air pipe, and the glass fiber plate with the processed appearance is adhered to the inner wall of the air pipe.

In order to prevent the heat preservation cotton quilt from being blown away, the inner wall of the metal air pipe is required to be coated with glue with a full spreading rate of more than 90 percent, and the air velocity in the pipe is required to be not more than 20.3 m/s. The interior of the air pipe is bonded with the lining heat-insulating and sound-attenuating material by adopting a formaldehyde-free special adhesive, so that the firmness of the air pipe is ensured, and the port of the air pipe is sealed by adopting a special material, so that the heat-insulating and sound-attenuating material is ensured not to scatter and no cold bridge is generated.

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 an internal heat-preservation and noise-reduction air pipe product based on BIM is characterized in that an air pipe sketch is manufactured by an internal heat-preservation and noise-reduction air pipe production method through an Autodesk review, a single straight-pipe air pipe and a single special-shaped air pipe are manufactured on the basis of the sketch, prefabricated manufacturing information is guided into an Autodesk noise control system, and the production process of the internal heat-preservation and noise-reduction air pipe is controlled through the Autodesk noise. The process is as follows:

step S1, constructing a primary BIM model through an Autodesk Revit according to the preparation requirement of the internal heat-preservation and noise-reduction air pipe;

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, and coding the produced prefabricated product, wherein the coding information corresponds to the formed pipe fittings one by one;

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.

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.