A node pipe arrangement method and system for pipe complex model based on BIM

Abstract

The present invention provides a node pipe arrangement method and system for a pipe complex model based on BIM. The method includes: obtaining pipeline professional information of each pipeline at the node; based on the pipeline professional information of each pipeline at the node, classifying each pipeline, and measuring the space occupied by each type of pipeline; according to the space occupied by each type of pipeline, based on the pipe arrangement strategy, using BIM software, arranging various types of pipelines to form a multi-layer horizontal and vertical cross-layout mode; using a "Chinese knot" processing method, adjusting the pipelines arranged horizontally and the pipelines arranged vertically at each layer of the node, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe arrangement with fewer layers. Based on the pipeline professional information of each pipeline at the node, the present invention arranges various types of pipelines and adopts a "Chinese knot" processing method. The multi-layer pipelines that originally passed through the node are directly converted into two-layer pipelines with one layer horizontally and one layer vertically, or a multi-layer "Chinese knot" type pipeline arrangement.

Description

Technical Field

[0001] The present invention relates to the field of electromechanical technology, and in particular to a node pipe arrangement method and system for a pipe complex model based on BIM. Background Art

[0002] At present, the mechanical and electrical pipeline construction drawings are basically single-system design ideas. After the design is completed, each pipeline system can be constructed normally from the drawings. However, in actual installation, multiple professional pipelines are constructed at the same time. When the professional drawings are integrated together for on-site construction, problems will arise. In many places, pipelines will collide or the space is too small for the pipeline to pass through. At this time, on-site processing will take time, manpower, and material resources to solve, and may even increase costs.

[0003] The industry can currently use comprehensive pipeline optimization to determine the layout of all professional pipelines before construction, eliminate pipeline collisions, and ensure clear height. Use BIM technology to model and arrange bridges and pipelines, and through secondary in-depth design, plan all pipeline routes, ensure that the original functions and supply points are not changed, and reasonably arrange the positions of various water pipes, air ducts, and bridges, which can solve the problems of collisions at multiple complex nodes of pipelines and the difficulty of construction.

[0004] However, in the process of comprehensive pipeline optimization, complex nodes with multiple disciplines will be encountered. Generally speaking, if the net height requirement for these complex nodes is not high when laying pipes, they only need to be arranged horizontally and vertically to make the pipeline unobstructed. If the net height requirement is high, the net height requirement is met by bending one or more pipelines up and down. There is no unified arrangement form, resulting in unsightly complex nodes, greater difficulty in construction, and construction errors that affect the normal installation of other pipelines.

[0005] For important nodes at the intersections on the main roads of the lines, there are many pipelines and most of them are main pipelines, and there are intersections of two main lines in the horizontal and vertical directions. Pipelines in the intersection area of ​​the intersection need to be turned to avoid pipeline collision, so the pipeline situation in this area is very complicated. If there are two or more layers of pipelines on one road, the pipeline level at the intersection will be the sum of the pipeline levels in the two directions, which is easy to break the net height. Summary of the invention

[0006] In view of this, the present invention proposes a node pipe arrangement method and system for a pipe complex model based on BIM, aiming to solve the problem of pipeline collision at existing multi-professional complex nodes.

[0007] On the one hand, the present invention proposes a node pipe arrangement method for a pipe complex model based on BIM, and the node pipe arrangement method includes: an information acquisition step, obtaining the pipeline professional information of each pipeline at the node; a grouping step, classifying each pipeline based on the pipeline professional information of each pipeline at the node, and measuring the space occupied by each type of pipeline; a pipe arrangement step, according to the space occupied by each type of pipeline, based on the pipe arrangement strategy, using BIM software to arrange various types of pipelines to form a multi-layer horizontal and vertical cross-layout method; a pipe adjustment step, using a "Chinese knot" processing method to adjust the pipelines arranged horizontally at each layer at the node and the pipelines in the vertical step, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe layout with fewer layers.

[0008] Furthermore, the node pipe arrangement method for the pipe complex model based on BIM adopts the "Chinese knot" processing method to adjust the pipelines arranged horizontally and in the longitudinal steps at each layer at the node, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe layout with a few layers. Specifically, the multi-layer pipelines are grouped to form at least one group of pipelines, and one layer of horizontal and / or longitudinal pipelines in each group of pipelines is selected as the reference layer for "Chinese knot" processing, and the horizontal and / or longitudinal pipelines of other layers in the group are selected to be horizontally and obliquely bent to flatten the horizontal or longitudinal pipelines before the intersection using the space of the horizontal main road, so that the horizontal projections of all pipelines in all layers have no intersection.

[0009] Furthermore, in the above-mentioned node pipe arrangement method for the pipe complex model based on BIM, after each layer of horizontal and / or longitudinal pipelines enters the intersection node, when encountering the pipeline on the other side, the top-level pipelines are kept straight through, and the other layers of horizontal and / or longitudinal pipelines in the group are bent upwards to raise all pipelines to the same horizontal elevation and spread out.

[0010] Furthermore, in the above-mentioned node pipe arrangement method for the pipe complex model based on BIM, if the transverse main road pipeline is in the upper position, it will be spread out through horizontal and diagonal bending before entering the intersection node. After entering the intersection node, all pipelines will be raised to the same horizontal elevation by bending downward and spread out. After passing the node, they will be changed back to multiple layers through horizontal and diagonal bending. All pipelines will be reset and still move forward as a group according to their original positions and directions.

[0011] Furthermore, in the above-mentioned node pipe arrangement method for the pipe complex model based on BIM, in the "Chinese knot" type pipe layout with a few layers, in the "Chinese knot" type pipe layout of each layer, from the horizontal projection, all pipelines are arranged in a row according to the professional information of each type of pipeline, and the same professional pipelines are adjacent and have the same elevation.

[0012] Furthermore, in the above-mentioned node pipe arrangement method for the pipe complex model based on BIM, the pipeline professional information includes: pipeline outer diameter, cable tray specifications, air duct specifications, various connector information, pipeline accessory information and air duct terminal position.

[0013] Furthermore, the above-mentioned node pipe arrangement method for the pipe complex model based on BIM, the pipe arrangement strategy includes: the cable tray is located at the topmost layer, the water supply and drainage pipelines and the fire protection pipelines are arranged below the cable tray or at the same level as the cable tray, and the air duct is located at the bottommost layer or flush with the water supply and drainage pipelines; the water supply and drainage pipelines are arranged from bottom to top according to the water temperature, and the water supply and drainage pipelines with a slope are placed at the topmost or bottommost layer of each layer of water supply and drainage pipelines.

[0014] On the other hand, the present invention proposes a node pipe arrangement system for a pipe complex model based on BIM, and the node pipe arrangement system includes: an information acquisition module, which is used to obtain pipeline professional information of each pipeline at the node; a grouping module, which is used to classify each pipeline based on the pipeline professional information of each pipeline at the node, and measure the space occupied by each type of pipeline; a pipe arrangement module, which is used to arrange various types of pipelines according to the space occupied by various pipelines, based on the pipe arrangement strategy, and using BIM software to form a multi-layer horizontal and vertical cross-layout method; a pipe adjustment module, which is used to use a "Chinese knot" processing method to adjust the pipelines arranged horizontally and the pipelines arranged vertically at each layer at the node, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe layout with fewer layers.

[0015] Furthermore, the node pipe arrangement system of the pipe complex model based on BIM adopts the "Chinese knot" processing method to adjust the pipelines arranged horizontally and in the longitudinal steps at each layer at the node, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe layout with a few layers. Specifically, the multi-layer pipelines are grouped to form at least one group of pipelines, and one layer of horizontal and / or longitudinal pipelines in each group of pipelines is selected as the reference layer for "Chinese knot" processing, and the horizontal and / or longitudinal pipelines of other layers in the group are selected to be horizontally and obliquely bent to flatten the horizontal or longitudinal pipelines before the intersection using the space of the horizontal main road, so that the horizontal projections of all pipelines in all layers have no intersection.

[0016] Furthermore, in the above-mentioned node pipe arrangement system based on BIM for the pipe complex model, after the horizontal and / or longitudinal pipelines of each layer enter the intersection node, when they encounter the pipelines on the other side, the top-level pipelines shall keep passing straight, and the horizontal and / or longitudinal pipelines of other layers in the group shall be bent upward to raise all pipelines to the same horizontal elevation and spread them out.

[0017] Furthermore, for the node pipe arrangement system of the pipe complex model based on BIM, if the transverse main road pipeline is in the upper position, it will be spread out through horizontal and diagonal bending before entering the intersection node. After entering the intersection node, all pipelines will be raised to the same horizontal elevation by bending downward and spread out. After passing the node, they will be changed back to multiple layers through horizontal and diagonal bending. All pipelines will be reset and move forward as a whole group according to their original positions and directions.

[0018] Furthermore, in the above-mentioned node pipe arrangement system for the pipe complex model based on BIM, in the few-layer "Chinese knot" type pipe arrangement, in each layer of the "Chinese knot" type pipe arrangement, from the horizontal projection point of view, all pipelines are arranged in a row according to the professional information of each type of pipeline, and are adjacent to the same professional pipelines and have the same elevation.

[0019] Furthermore, in the above-mentioned node pipe arrangement system for the pipe complex model based on BIM, the pipeline professional information includes: pipeline outer diameter, cable tray specifications, air duct specifications, various connector information, pipeline accessory information and air duct terminal position.

[0020] Furthermore, the node pipe arrangement system of the above-mentioned BIM-based pipe complex model, the pipe arrangement strategy includes: the cable tray is located at the topmost layer, the water supply and drainage pipelines and fire protection pipelines are arranged below the cable tray or at the same level as the cable tray, and the air duct is located at the bottommost layer or flush with the water supply and drainage pipelines; the water supply and drainage pipelines are arranged from low to high and from bottom to top according to the water temperature, and the water supply and drainage pipelines with a slope are placed at the topmost or bottommost layer of each layer of water supply and drainage pipelines.

[0021] The node pipe arrangement method and system for the pipe complex model based on BIM provided by the present invention can arrange various types of pipelines to form a multi-layer horizontal and vertical cross-layout mode based on the pipeline professional information of each pipeline at the node, and adopt a "Chinese knot" processing method to adjust the pipelines arranged horizontally and the pipelines arranged vertically at each layer at the node, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe arrangement with fewer layers. The multi-layer pipelines originally passing through the node are directly converted into two layers of pipelines with one layer horizontally and one layer vertically, or a multi-layer "Chinese knot" type pipeline arrangement, that is, a Chinese knot is tied at the intersection, which is neat and beautiful, and perfectly solves the problems of pipeline collision and insufficient net height. The space utilization rate can be greatly improved, the net height of the pipeline can be greatly improved, and the pipeline collision can be completely avoided. The pipelines of all mechanical and electrical disciplines are grouped according to their professions, which makes it easier to make supports and hangers to save materials, and the comprehensive arrangement of the pipelines of the present invention is more neat, beautiful and artistic. The node pipe arrangement method effectively solves the problems of complex node pipeline collision in the prior art, the problem that the non-standard angles of pipelines and bridge connectors in the prior art design drawings cannot be constructed according to the drawings, the problem that the prior art various professional subcontracted pipelines are complicated and the construction procedures are disordered, the problem that the prior art various professional pipelines are constructed according to the drawings and the professional mixing and uneven spacing make it difficult to make supports and hangers and waste materials, and the problem that the electromechanical construction pipelines in the prior art are unsightly, which speeds up the construction progress, reduces the difficulty of construction, and improves the quality of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0023] Figure 1 A flowchart of a node pipe arrangement method for a pipe complex model based on BIM provided in an embodiment of the present invention;

[0024] Figure 2 A three-dimensional node diagram of the "Chinese knot" type pipe layout provided in an embodiment of the present invention;

[0025] Figure 3 A node plane diagram of the "Chinese knot" type pipe layout provided in an embodiment of the present invention;

[0026] Figure 4 A structural block diagram of a node pipe arrangement system for a pipe complex model based on BIM provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Method Example:

[0029] See also Figure 1 , which is a flowchart of a node arrangement method for a pipe system model based on BIM provided by an embodiment of the present invention. As shown in the figure, the node arrangement method includes:

[0030] Information acquisition step S1, acquiring pipeline professional information of each pipeline at the node.

[0031] Specifically, the pipeline professional information of all pipelines of the node is understood to obtain the pipeline professional information of each pipeline at the node, so as to reserve installation space when laying the pipes; wherein, the pipeline professional information of each pipeline at the node may include: pipeline outer diameter, cable tray specifications, air duct specifications, various connector information, pipeline accessory information and air duct terminal position, and may also include other information.

[0032] In the grouping step S2, each pipeline is classified based on the pipeline professional information of each pipeline at the node, and the space occupied by each type of pipeline is measured.

[0033] Specifically, based on the pipeline professional information of each pipeline at the node, a spatial analysis is performed to find the most unfavorable point; then all pipelines passing through the space are grouped into a group with the same professional information, i.e., one category, and then the distance occupied by each category of pipelines is measured.

[0034] In the pipe arrangement step S3, various pipelines are arranged according to the space occupied by various pipelines based on the pipe arrangement strategy and using BIM software to form a multi-layer horizontal and vertical cross-layout.

[0035] Specifically, according to the space occupied by various types of pipelines, that is, the distance occupied by each type of pipeline, it is possible to analyze how many layers are needed for all pipelines to pass through the space, that is, to obtain the number of pipeline layers, and to determine whether the net height requirements can be met; finally, based on the pipe arrangement strategy, the specific arrangement plan is analyzed for pipe arrangement, and the BIM software is used to arrange various types of pipelines to form a multi-layer horizontal and vertical cross-layout. Among them, the pipe arrangement strategy includes: the cable tray is located at the top layer, the water supply and drainage pipelines and fire protection pipelines are arranged below the cable tray or at the same level as the cable tray, and the air duct is located at the bottom layer or flush with the water supply and drainage pipelines; the water supply and drainage pipelines are arranged from low to high and from bottom to top according to the water temperature, and the water supply and drainage pipelines with a slope are placed on the top or bottom layer of each layer of water supply and drainage pipelines; if two or three rows of pipelines cannot be placed, they will be arranged until the minimum number of layers is used, but the cable tray is usually required to be above the water pipe or in a flush position.

[0036] In the pipe adjustment step S4, a "Chinese knot" processing method is used to adjust the pipelines arranged horizontally at each layer at the node and the pipelines arranged longitudinally, so that the multi-layer pipelines are reduced in layers to form a "Chinese knot" type pipe layout with fewer layers.

[0037] Specifically, an innovative method similar to the "Chinese knot" is used to adjust the pipes for important and complex nodes with many pipes. After completing the professional information and spatial analysis, the pipelines on the general path will be much neater. For the complex situation where there are multiple layers of pipelines at the intersection, two or more layers of pipelines are reduced from multiple layers when they are about to reach the intersection node. After the adjustment is completed, it looks like a Chinese knot is tied at the intersection from above, which is neat and beautiful and perfectly solves the problems of pipeline collision and insufficient clear height. Among them, if the main roads in the horizontal and vertical directions are multi-layered, the pipelines of the horizontal and vertical main roads are all treated in the "Chinese knot" style, and the horizontal and vertical pipelines are flattened before the intersection of the intersection using the space of the horizontal main road, so that all layers of all pipelines have no intersection in the horizontal projection. From the perspective of the horizontal projection, all pipelines are arranged in a row according to the bridge, water supply and drainage, fire protection, and air duct groups, adjacent to the same professional pipelines, and the elevation of each professional pipeline is unified. In this way, the multi-layer pipelines that originally passed through the node are directly transformed into two-layer pipelines with one layer in the horizontal direction and one layer in the vertical direction. If there are too many pipelines to fit in one layer, a two-layer "Chinese knot" four-layer pipeline method is used, such as Figure 2 and Figure 3 As shown, a Chinese knot can be formed at the intersection.

[0038] In this embodiment, multiple layers of pipelines are grouped to form at least one group of pipelines. In each group of pipelines, one layer of horizontal and / or longitudinal pipelines is selected as the reference layer for "Chinese knot" processing. Other layers of horizontal and / or longitudinal pipelines in the group are selected to be bent horizontally and diagonally to spread the horizontal or longitudinal pipelines out before the intersection using the space of the horizontal main road, so that there is no intersection in the horizontal projection of all pipelines in all layers. Specifically, when entering an intersection, a group of horizontal or vertical pipelines are selected for "Chinese knot" processing, and the second and third to bottom rows of pipelines are selected to be flattened in the space of the horizontal main road before the intersection through horizontal and oblique bending, so that all pipelines on all layers have no intersection in horizontal projection. From the horizontal projection, all pipelines are arranged in a row according to the group of bridge frames, water supply and drainage, fire protection, and air ducts, adjacent to the same professional pipelines, and the elevations of various professional pipelines are unified. In other words, in the "Chinese knot" pipe layout of a few layers, in the "Chinese knot" pipe layout of each layer, from the horizontal projection, all pipelines are arranged in a row according to the professional information of each type of pipeline, adjacent to the same professional pipelines and with the same elevation.

[0039] In this embodiment, after each layer of horizontal and / or longitudinal pipelines enters the intersection node, if they encounter the pipeline on the other side, the top pipeline is kept straight through, and the other layers of horizontal and / or longitudinal pipelines in the group are bent upward to raise all pipelines to the same horizontal elevation and spread out. Specifically, after entering the intersection node, if they encounter the pipeline on the other side, the top pipeline is kept straight through, and the pipelines from the second, third and bottom layers are bent upward to raise all pipelines to the same horizontal elevation and spread out.

[0040] In this embodiment, if the transverse main road pipeline is in the upper position, it is flattened by horizontally and obliquely bending before entering the intersection node. After entering the intersection node, all pipelines are raised to the same horizontal elevation by bending downward and flattened. After turning over the node, it is turned back to multiple layers by horizontally and obliquely bending. All pipelines are reset and still move forward as a group according to their original positions and directions. Specifically, if the transverse main road pipeline is in the upper position, it is flattened by horizontally and obliquely bending before the intersection of the road. After entering the node, all pipelines are raised to the same horizontal elevation by bending downward and flattened. After turning over the node, it is turned back to multiple layers by horizontally and obliquely bending. All pipelines are reset and still move forward as a group according to their original positions and directions. At this time, the pipeline at the node meets the clear height requirement. If only one side of the horizontal or longitudinal direction is processed in this way and the clear height requirement cannot be met, the pipelines on both sides of the horizontal and longitudinal directions need to be flattened and bent and then restored in this way to ensure the clear height requirement at the node. If the pipeline layout at the node still breaks the clear height, the route of the pipeline that does not necessarily pass through this route can be changed so that it can be routed to the supply point via other routes to ensure the clear height and layout of other pipelines on the main road.

[0041] In summary, the node pipe arrangement method for the pipe complex model based on BIM provided in this embodiment can arrange various types of pipelines to form a multi-layer horizontal and vertical cross-layout method based on the pipeline professional information of each pipeline at the node, and adopt a "Chinese knot" processing method to adjust the pipelines arranged horizontally and the pipelines in the vertical steps at each layer of the node, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe arrangement with fewer layers. The multi-layer pipelines originally passing through the node are directly converted into two layers of pipelines with one layer horizontally and one layer vertically, or a multi-layer "Chinese knot" type pipeline arrangement, that is, a Chinese knot is tied at the intersection, which is neat and beautiful, and perfectly solves the problems of pipeline collision and insufficient net height. It can greatly improve the net height of the pipeline with higher space utilization, and completely avoid pipeline collision. In addition, all mechanical and electrical pipelines are grouped by profession, which makes it easier to make supports and hangers to save materials, and makes the comprehensive arrangement of pipelines in the present invention more neat, beautiful and artistic. The node pipe arrangement method effectively solves the problems of complex node pipeline collision in the prior art, the problem that the non-standard angles of pipelines and bridge connectors in the prior art design drawings cannot be constructed according to the drawings, the problem that the prior art various professional subcontracted pipelines are complicated and the construction procedures are disordered, the problem that the prior art various professional pipelines are constructed according to the drawings and the professional mixing and uneven spacing make it difficult to make supports and hangers and waste materials, and the problem that the electromechanical construction pipelines in the prior art are unsightly, which speeds up the construction progress, reduces the difficulty of construction, and improves the quality of the project.

[0042] System Example:

[0043] See also Figure 4 , which is a structural block diagram of a node pipe arrangement system for a pipe complex model based on BIM provided by an embodiment of the present invention. As shown in the figure, the node pipe arrangement system includes: an information acquisition module 100, a grouping module 200, a pipe arrangement module 300 and a pipe adjustment module 400; wherein, the information acquisition module 100 is used to obtain the pipeline professional information of each pipeline at the node; the grouping module 200 is used to classify each pipeline based on the pipeline professional information of each pipeline at the node, and measure the space occupied by each type of pipeline; the pipe arrangement module 300 is used to arrange various types of pipelines according to the space occupied by various types of pipelines, based on the pipe arrangement strategy, using BIM software to form a multi-layer horizontal and vertical cross-layout mode; the pipe adjustment module 400 is used to use a "Chinese knot" processing method to adjust the horizontally arranged pipelines and the vertically arranged pipelines at each layer of the node, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe arrangement with fewer layers.

[0044] Preferably, a "Chinese knot" processing method is adopted to adjust the pipelines arranged horizontally and in the longitudinal steps at each layer at the node, so that the multi-layer pipelines are reduced to form a "Chinese knot" type pipe layout with a few layers. Specifically, the multi-layer pipelines are grouped to form at least one group of pipelines, and one layer of horizontal and / or longitudinal pipelines in each group of pipelines is selected as the reference layer for "Chinese knot" processing, and the horizontal and / or longitudinal pipelines of other layers in the group are selected to be bent horizontally and obliquely to flatten the horizontal or longitudinal pipelines before the intersection of the road using the space of the horizontal main road, so that there is no intersection in the horizontal projection of all pipelines in all layers.

[0045] Preferably, if the transverse trunk pipeline is in the upper position, it is spread out through horizontal and diagonal bending before entering the intersection node. After entering the intersection node, all pipelines are raised to the same horizontal elevation by bending downward and spread out. After passing the node, they are changed back to multiple layers through horizontal and diagonal bending. All pipelines are reset and continue to move forward as a group according to their original positions and directions.

[0046] Preferably, in the "Chinese knot" type pipe layout with a few layers, in each layer of the "Chinese knot" type pipe layout, from the perspective of horizontal projection, all pipelines are arranged in a row according to the professional information of each type of pipeline, and are adjacent to the same professional pipelines and have the same elevation.

[0047] In this embodiment, the pipeline professional information includes: pipeline outer diameter, cable tray specifications, air duct specifications, various connector information, pipeline accessory information and air duct terminal position.

[0048] In this embodiment, the pipe arrangement strategy includes: the cable tray is located at the top layer, the water supply and drainage pipelines and fire protection pipelines are arranged below the cable tray or at the same level as the cable tray, and the air duct is located at the bottom layer or flush with the water supply and drainage pipelines; the water supply and drainage pipelines are arranged from low to high and from bottom to top according to the water temperature, and the water supply and drainage pipelines with a slope are placed at the top or bottom layer of each layer of water supply and drainage pipelines.

[0049] It should be noted that, since the system embodiment and the method embodiment in this embodiment have the same principles, the relevant parts can be referenced to each other.

[0050] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0051] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A node arrangement method for a pipe complex model based on BIM, characterized in that: include: An information acquisition step, acquiring pipeline professional information of each pipeline at the node; The grouping step is to classify each pipeline based on the pipeline professional information of each pipeline at the node, and measure the space occupied by each type of pipeline; Pipe arrangement steps: According to the space occupied by various pipelines, based on the pipe arrangement strategy, using BIM software, various pipelines are arranged to form a multi-layer horizontal and vertical cross layout; The pipe adjustment step uses the "Chinese knot" processing method to adjust the horizontally arranged pipelines at each layer at the node and the longitudinally arranged pipelines, so that the multi-layer pipelines are reduced in layers to form a "Chinese knot" pipe layout with fewer layers; The "Chinese knot" processing method is adopted to adjust the pipelines arranged horizontally and the pipelines arranged vertically at each layer at the node, so that the multi-layer pipelines are reduced in layers to form a "Chinese knot" pipe layout with fewer layers, specifically: The multi-layer pipelines are grouped to form at least one group of pipelines, one layer of transverse and / or longitudinal pipelines is selected from each group of pipelines as the reference layer for "Chinese knot" processing, and the transverse and / or longitudinal pipelines of other layers in the group are selected to be horizontally and obliquely bent to flatten the transverse or longitudinal pipelines before the intersection using the space of the transverse main road, so that all pipelines of all layers have no intersection in horizontal projection; After the horizontal and / or vertical pipelines of each layer enter the intersection node, when encountering the pipeline on the other side, the top layer pipeline is kept straight through, and the horizontal and / or vertical pipelines of other layers in the group are bent upward to raise all pipelines to the same horizontal elevation and spread out flat; If the transverse trunk pipeline is in the upper layer, it will be laid out by horizontal and diagonal bending before entering the intersection node. After entering the intersection node, all pipelines will be raised to the same level by bending downward and laid out. After crossing the node, it will be turned back to multiple layers by horizontal and diagonal bending. All pipelines will be reset and continue to move forward as a group according to their original positions and directions. In the "Chinese knot" style pipe layout with few layers, in each layer of the "Chinese knot" style pipe layout, from the horizontal projection point of view, all pipelines are arranged in a row according to the professional information of each type of pipeline, and the pipelines of the same profession are adjacent and have the same elevation.

2. The node arrangement method for the pipe complex model based on BIM according to claim 1 is characterized in that: The pipeline professional information includes: pipeline outer diameter, cable tray specifications, air duct specifications, various connector information, pipeline accessory information and air duct terminal position.

3. The node arrangement method for pipe complex model based on BIM according to claim 1 is characterized in that: The drainage strategy includes: The cable tray is located at the top layer, the water supply and drainage pipelines and fire protection pipelines are arranged below the cable tray or on the same level as the cable tray, and the air duct is located at the bottom layer or flush with the water supply and drainage pipelines; The water supply and drainage pipelines are arranged from low to high and from bottom to top according to the water temperature. The water supply and drainage pipelines with a slope are placed on the top or bottom layer of each layer.

4. A node arrangement system for a pipe complex model based on BIM, characterized in that: include: An information acquisition module is used to obtain professional pipeline information of each pipeline at a node; The grouping module is used to classify each pipeline based on the pipeline professional information of each pipeline at the node and measure the space occupied by each type of pipeline; The pipe arrangement module is used to arrange various pipelines into a multi-layer horizontal and vertical cross layout based on the space occupied by various pipelines and the pipe arrangement strategy using BIM software; The pipe adjustment module is used to adjust the horizontally arranged pipelines and the longitudinally arranged pipelines at each layer of the node in a "Chinese knot" processing method, so that the multi-layer pipelines can be reduced to form a "Chinese knot" pipe layout with fewer layers; The "Chinese knot" processing method is adopted to adjust the pipelines arranged horizontally and the pipelines arranged vertically at each layer at the node, so that the multi-layer pipelines are reduced in layers to form a "Chinese knot" pipe layout with fewer layers, specifically: The multi-layer pipelines are grouped to form at least one group of pipelines, one layer of transverse and / or longitudinal pipelines is selected from each group of pipelines as the reference layer for "Chinese knot" processing, and the transverse and / or longitudinal pipelines of other layers in the group are selected to be horizontally and obliquely bent to flatten the transverse or longitudinal pipelines before the intersection using the space of the transverse main road, so that all pipelines of all layers have no intersection in horizontal projection; After the horizontal and / or vertical pipelines of each layer enter the intersection node, when encountering the pipeline on the other side, the top layer pipeline is kept straight through, and the horizontal and / or vertical pipelines of other layers in the group are bent upward to raise all pipelines to the same horizontal elevation and spread out flat; If the transverse trunk pipeline is in the upper layer, it will be laid out by horizontal and diagonal bending before entering the intersection node. After entering the intersection node, all pipelines will be raised to the same level by bending downward and laid out. After crossing the node, it will be turned back to multiple layers by horizontal and diagonal bending. All pipelines will be reset and continue to move forward as a group according to their original positions and directions. In the "Chinese knot" style pipe layout with few layers, in each layer of the "Chinese knot" style pipe layout, from the horizontal projection point of view, all pipelines are arranged in a row according to the professional information of each type of pipeline, and the pipelines of the same profession are adjacent and have the same elevation.

5. The node arrangement system for pipe complex model based on BIM according to claim 4 is characterized in that: The pipeline professional information includes: pipeline outer diameter, cable tray specifications, air duct specifications, various connector information, pipeline accessory information and air duct terminal position.

6. The node arrangement system for pipe complex model based on BIM according to claim 4 is characterized in that: The drainage strategy includes: The cable tray is located at the top layer, the water supply and drainage pipelines and fire protection pipelines are arranged below the cable tray or on the same level as the cable tray, and the air duct is located at the bottom layer or flush with the water supply and drainage pipelines; The water supply and drainage pipelines are arranged from low to high and from bottom to top according to the water temperature. The water supply and drainage pipelines with a slope are placed on the top or bottom layer of each layer.

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