JP5543944B2 - Spool diagram creation support method and spool diagram creation support device - Google Patents

Description

  The present invention relates to a spool diagram creation support method and a spool diagram creation support device related to the shape of piping during transportation in plants such as thermal power, chemicals, and nuclear power.

  As background art of the present technology, a well-known example of Japanese Patent Application Laid-Open No. 2006-27833, page 6, lines 18 to 22 states, “Equipment supplier 6 has a transportation management system with an access right given in advance by power generation equipment manufacturer 8. 2 and the information necessary for the selection of vessels (Packing-Style), the amount and dimensions of the load, the quantity of the load, the product name, the port of loading, the place of entry, etc. via the Internet 11 Can be contacted. "

  Also, on page 6, lines 9 to 15 of JP 2007-220027, a publicly known example, “Next, FIG. 7 shows construction transportation for storing arrangement state information at the time of transportation or loading of the construction. It is a figure which shows the data storage format of arrangement | positioning data.In FIG.7, identification ID of a construction part is stored in construction part ID, and the arrangement | positioning attribute of the construction part at the time of transportation or carrying in is shown in an arrangement column. The storage format of the arrangement attribute data conforms to the arrangement column data of the construction arrangement data. This construction arrangement data during transportation is created by user input using 3D-CAD. " Have been described.

  Also, according to the well-known literature “Determination of optimum welding position of piping by dynamic programming”, “Piping is made by assembling and welding elbows, T-joints and material pipes. Partial pipes called spools are manufactured by factory welding, and the entire pipes are assembled and welded on-site.The conditions considered here are the unit price of factory welding and on-site welding, the size of the spool limited by the transport limit, and piping. It is a prohibited area that cannot be welded inside, a necessary welding area that must be welded, and the length of the material pipe. The function that minimizes the welding cost is shown below. "

JP 2006-27833 A Japanese Patent Laid-Open No. 2007-220027

Matsumoto et al., “Determination of optimum welding position of piping by dynamic programming”, Journal of the Operations Research Society Japan, Vol.41, No.3, September 1998. Joseph O’Rourke, “Computational Geometry in C”, Cambridge University Press, 1994.

  In the prior art shown in the above-mentioned JP-A-2006-27833, JP-A-2007-220027, and the publicly known document “Determination Method of Optimal Welding Position of Piping by Dynamic Programming”, all are described in the publicly-known literature. It is assumed that the input is made assuming a packaged state of a partial pipe divided into a transportable size called a spool.

  However, in order to determine the package form of the spool, it is necessary to consider not only the restrictions on the shape of the transport container but also the stability during transport and whether it is a grounded work surface. Each known technique has a problem that it is difficult to evaluate an accurate transport dimension of the spool, and it is difficult to prevent an accident at the time of transport and inspection of the spool and damage to the spool.

  The purpose of the present invention is to know the stable way of placing the spool during transportation, so that it is possible to evaluate the exact transportation dimension of the spool, and to prevent accidents and damage to the spool during transportation and inspection of the spool. An object of the present invention is to provide a spool diagram creation support method and spool diagram creation support that can be prevented.

The spool diagram creation support method of the present invention is a spool diagram creation support method for creating a drawing of a spool constituting a pipe to be cut at a welding point from three-dimensional information of plant piping and information of a welding point of piping installed on site. A plane in which a plurality of spools constituting the piping are respectively created on the basis of the three-dimensional information of the plant piping and the welding point information of the plurality of spools constituting the piping installed on the site, and the created spools are assumed to be grounded. The stability of the spool when the spool is grounded on the grounding surface depending on whether or not the outer polygon including the point sequence to which each spool is grounded includes the point where the center of gravity of the spool is projected onto the grounding plane. A three-sided view of a spool having a stable grounding surface of the spool as one projection surface, which is determined to be stable and the grounded spool is determined to be stable To create, characterized in that.

  The spool diagram creation support device of the present invention includes an input device for inputting plant piping three-dimensional information and piping local welding point information, plant piping three-dimensional information and piping local welding points input from the input device. In the spool diagram creation support processing device having a spool diagram creation support processing device for creating a drawing of a piping spool cut at a local welding point based on the information of the spool, the spool diagram creation support processing device is input from the input device. The spool setting means for creating the plurality of spools constituting the pipe based on the three-dimensional information of the plant piping and the information on the welding points of the plurality of spools constituting the pipe installed on site, and the spool setting means Spool ground plane setting support means for creating a plane on the assumption that the spool is grounded, and the spool ground plane setting support hand Whether the outer polygon including the point sequence where each spool contacts the plane on the plane on which the spool created in step 1 is grounded includes the point where the center of gravity of the spool is projected onto the ground plane. Spool stability determination means for determining the stability of the spool when the spool is grounded, and a stable ground contact surface of the spool for which the spool grounded by the spool stability determination means is determined to be stable as one projection plane Each is provided with spool three-view drawing generating means for creating a three-view drawing of the spool to be operated.

In addition, the spool diagram creation support device of the present invention includes an input device for inputting three-dimensional information of plant piping and information on the local welding point of piping, and three-dimensional information of plant piping and piping local welding input from the input device. In a spool diagram creation support processing device having a spool diagram creation support processing device for creating a drawing of a piping spool cut at a local welding point based on point information, the spool diagram creation support processing device is input from the input device Spool setting means for creating a plurality of spools constituting the pipe based on the three-dimensional information of the plant pipe and the information on the welding points of the spools constituting the pipe installed at the site, and the spool setting means Each surface of the smallest inclusion convex polyhedron created from the center line of the surface is created as a candidate of a ground contact surface on which the spool is grounded And pool ground plane setting support means comprises outer hull polygon columns that each spool ground for the plane in which the spool created is assumed to ground at the spool ground plane setting support means, the ground plane the center of gravity point of the spool A spool stability determining means for evaluating the stability of the spool when the spool is grounded on the ground contact surface depending on whether or not the projected point is included, and the spool grounded by the spool stability determining means is stable. The smallest rectangular parallelepiped including the spool having the ground contact surface as the bottom surface in each of the evaluated ground contact surfaces, the 3D data of the spool obtained by converting the 3D coordinates to the same length using the ground contact surface as the plane of the bottom surface, and the center of gravity of the spool A spool three-view drawing generating means for creating a point obtained by projecting the center of gravity onto the ground contact surface is provided.

  In addition, the spool diagram creation support device of the present invention includes an input device for inputting three-dimensional information of plant piping and information on the local welding point of piping, and three-dimensional information of plant piping and piping local welding input from the input device. In a spool diagram creation support processing device having a spool diagram creation support processing device for creating a drawing of a piping spool cut at a local welding point based on point information, the spool diagram creation support processing device is input from the input device Spool setting means for creating a plurality of spools constituting the pipe based on the three-dimensional information of the plant pipe and the information on the welding points of the spools constituting the pipe installed at the site, and the spool setting means Each surface of the smallest inclusion convex polyhedron created from the center line of the surface is created as a candidate of a ground contact surface on which the spool is grounded The pool ground plane setting support means and the stability of the spool when the spool is grounded with each ground plane candidate for each ground plane candidate created by the spool ground plane setting support means, with respect to each ground plane candidate A spool stability determining means for determining and evaluating the stability of the envelope polygon including the point sequence where the spool contacts the ground by including whether or not the center of gravity of the spool is projected onto the ground plane; and Spool three-view drawing generating means for creating a three-view drawing of a spool having a stable ground contact surface of the spool determined to be stable by the spool stability determination means as one projection surface, respectively. Features.

  In addition, the spool diagram creation support device of the present invention includes an input device for inputting three-dimensional information of plant piping and information on the local welding point of piping, and three-dimensional information of plant piping and piping local welding input from the input device. In a spool diagram creation support processing device having a spool diagram creation support processing device for creating a drawing of a piping spool cut at a local welding point based on point information, the spool diagram creation support processing device is input from the input device Spool setting means for creating a plurality of spools constituting the pipe based on the three-dimensional information of the plant pipe and the information on the welding points of the spools constituting the pipe installed at the site, and the spool setting means Each surface of the smallest inclusion convex polyhedron created from the center line of the surface is created as a candidate of a ground contact surface on which the spool is grounded Regarding the ground contact surface setting support means and the respective ground contact surface candidates created by the spool ground contact surface setting support means, it is assumed that the spool is grounded when the spool is grounded by each ground contact surface candidate. Spool stability is evaluated by determining whether or not the envelope polygon including the point sequence where the spool contacts the ground for each ground plane candidate includes the point where the center of gravity of the spool is projected onto the ground plane. Spool three-view drawing generation for creating a three-view drawing of a spool having a projection point of the center of gravity of the spool, with each stable contact surface evaluated as stable by the sex judging means and the spool stability judging means as one projection plane Each means is provided.

  In addition, the spool diagram creation support device of the present invention includes an input device for inputting three-dimensional information of plant piping and information on the local welding point of piping, and three-dimensional information of plant piping and piping local welding input from the input device. In a spool diagram creation support processing device having a spool diagram creation support processing device for creating a drawing of a piping spool cut at a local welding point based on point information, the spool diagram creation support processing device is input from the input device Spool setting means for creating a plurality of spools constituting the pipe based on the three-dimensional information of the plant pipe and the information on the welding points of the spools constituting the pipe installed at the site, and the spool setting means Each surface of the smallest inclusion convex polyhedron created from the center line of the surface is created as a candidate of a ground contact surface on which the spool is grounded An envelope polygon including a point sequence where each of the spools comes into contact with respect to a plane assumed to be grounded by the pool ground plane setting support means and the spool created by the spool ground plane setting support means. A spool stability determining means for evaluating the stability of the spool when the spool is grounded on the ground contact surface depending on whether or not the projected point is included, and the spool grounded by the spool stability determining means is stable. Spool transportation condition determination means for calculating the height, length, and width of the smallest rectangular parallelepiped that encloses the spool on each evaluated ground contact surface and narrowing down to ground contact surface candidates that satisfy transportation constraints, and the spool transport The smallest rectangular parallelepiped including the spool whose bottom surface is the ground contact surface of the ground contact surface narrowed down by the condition determining means, and the ground contact surface as the bottom plane. Spool of 3D data isometrically convert 3D coordinates, and, characterized in that it comprises respective spool 3 side view generating means for generating a point obtained by projecting the center of gravity and the center of gravity of the spool to the ground plane.

  According to the present invention, it is possible to evaluate the exact transport dimension of the spool by knowing the stable way of placing the spool during transportation, and it is possible to prevent accidents and damage to the spool during transportation and inspection of the spool. A spool diagram creation support method and a spool diagram creation support device that can be prevented can be realized.

1 is a schematic configuration diagram illustrating a spool diagram creation support apparatus according to a first embodiment of the present invention. An example of piping 3D data stored in the piping 3D data storage device of the spool diagram creation support device of the first embodiment shown in FIG. FIG. 2 is an example of an overall control GUI in the spool diagram creation support apparatus of the first embodiment described in FIG. 1. FIG. 3 is an example of a spool 3D data setting GUI in the spool diagram creation support apparatus of the first embodiment described in FIG. 1. FIG. 3 is an example of pool 3D data display in the spool diagram creation support apparatus of the first embodiment described in FIG. 1. FIG. 3 is a diagram illustrating an example of a welding line setting GUI in the spool diagram creation support apparatus according to the first embodiment illustrated in FIG. 1. FIG. 3 is an example of a spool setting GUI in the spool diagram creation support apparatus of the first embodiment described in FIG. 1. FIG. 3 is an example of spool display in the spool diagram creation support apparatus of the first embodiment described in FIG. 1. FIG. 3 is an example diagram of a welding line deletion GUI in the spool diagram creation support apparatus of the first embodiment shown in FIG. 1. FIG. 3 is a diagram illustrating an example of a non-spoolable portion setting GUI in the spool diagram creation support apparatus according to the first embodiment illustrated in FIG. 1. FIG. 3 is a flowchart of spool contact surface candidate generation processing in the spool diagram creation support apparatus of the first embodiment described in FIG. 1. Explanatory drawing of the spool contact surface candidate production | generation process in the spool figure creation assistance apparatus of 1st Example described in FIG. Explanatory drawing of the spool contact surface stability determination process in the spool figure preparation assistance apparatus of 1st Example described in FIG. FIG. 3 is a flowchart of a spool contact surface stability determination process in the spool diagram creation support apparatus of the first embodiment shown in FIG. 1. FIG. 2 is a view showing an example of a spool packing state in the spool diagram creation support apparatus of the first embodiment shown in FIG. 1. FIG. 3 is an example of a spool contact surface selection GUI in the spool diagram creation support apparatus of the first embodiment described in FIG. 1. FIG. 3 is an example of a spool three-view drawing generation GUI in the spool diagram creation support apparatus of the first embodiment described in FIG. 1. FIG. 3 is an example of spool three-view drawing generation in the spool diagram creation support apparatus of the first embodiment shown in FIG. 1. The schematic block diagram which shows the spool figure creation assistance apparatus which is the 2nd this Example of this invention. FIG. 20 is an example of an overall control GUI in the spool diagram creation support apparatus of the second embodiment described in FIG. 19. FIG. 20 is an example of a transport restriction GUI in the spool diagram creation support apparatus of the second embodiment described in FIG. 19.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS A spool diagram creation support method and a spool diagram creation support device relating to the shape of a pipe during transportation in a plant that is an embodiment of the present invention will be described using the drawings.

  A spool diagram creation support method and a spool diagram creation support device related to the shape of a pipe during transportation in a plant according to a first embodiment of the present invention will be described below with reference to FIGS.

  About the spool diagram creation support device relating to the shape of the pipe at the time of transportation in the plant of the first embodiment shown in FIG. 1, the stable installation surface of the spool of the partial piping obtained by dividing the piping used in the plant into a size that can be conveyed An example of a spool diagram creation support apparatus having a determination as to whether or not and a confirmation support unit thereof will be described.

  That is, FIG. 1 shows a spool diagram creation support apparatus according to the first embodiment of the present invention. The spool diagram creation support apparatus of this embodiment stores various data relating to spools constituting a target plant. A pipe 3D data storage device 101, a spool package data storage device 102, and a spool three-view drawing data storage device 103, which are three storage devices, are provided.

  The spool diagram creation support device includes a spool diagram creation processing device 104 that implements spool diagram creation support processing based on various data stored in these three storage devices, and further includes the spool diagram creation processing. An input device 105 including a keyboard 105B and a mouse 105A for inputting to the device 104, and a display device 106 such as a CRT for displaying data and the like calculated by the spool diagram creation processing device 104 are provided.

  In the spool diagram creation support apparatus shown in FIG. 1, as a data storage device for explanation, a partial pipe obtained by dividing the center line of a pipe used in a plant, the diameter of the pipe and the thickness of the pipe into sizes that can be transported. A piping 3D data storage device 101 for storing 3D data of piping consisting of welding line data to be welded at the installation site, and a spool packing storage for storing the spool packing Although the apparatus 102 and the spool three-view data storage device 103 are described separately, for example, the pipe 3D data storage device 101, the spool package data storage device 102, and the spool three-view data storage device are described. 103 may be stored in different areas on the hard disk of the same storage device.

  The spool diagram creation processing device 104 of the spool diagram creation support device of the present embodiment has means for reading data stored in the piping 3D data storage device 101. The pipe 3D data stored in the pipe 3D data storage device 101 is premised on data created by general 3D CAD.

  The spool diagram creation processing device 104 of the spool diagram creation support device of this embodiment includes a pipe 3D data input support means 104A that supports input of the center line, outer diameter, inner diameter, etc. of the pipe, and the pipe 3D data input support means 104A. A spool that sets up a plurality of spools that constitute a pipe to create a spool that constitutes a pipe based on the three-dimensional information of the plant pipe that is input from the above and information on the welding points of the plurality of spools that constitute the pipe installed on site Setting means 104B is provided.

  The spool diagram creation processing device 104 includes a spool grounding impossible surface setting unit 104C for setting a grounding surface on which a spool cannot be installed among grounding surfaces to which the spool created by the spool setting unit 104B is grounded, and the spool Of the grounding surfaces to which the spool created by the setting unit 104B is grounded, a spool grounding setting support unit 104D for setting a grounding surface on which the spool can be installed, and each of the grounding surfaces set by the spool grounding setting support unit 104D. Spool stability evaluation means 104E for evaluating the stability of the spool installed on the ground contact surface for evaluating the stability of the spool when the spool is grounded for the candidate is provided.

  The spool drawing creation processing device 104 includes a spool loading state confirmation unit 104F for confirming a loading state of a spool installed on the grounding surface for the grounding surface evaluated by the spool stability evaluation unit 104E as being stable. I have.

  In addition, the spool diagram creation processing device 104 sets the stable contact surface of the spool, which is determined to be stable, as the contact surface evaluated that the spool is stable by the spool stability evaluation unit 104E. Spool three-view drawing generation means 104G for creating a three-view drawing of a spool as a projection surface, and a spool three-view drawing display means for displaying on the display device 106 the three-view drawing of the spool created by the spool three-view drawing generation means 104G. 104H is provided.

  FIG. 2 shows an example of the data configuration of the pipe 3D data stored in the pipe 3D data storage device 101 of FIG. In the example shown in FIG. 2, the three-dimensional information of the pipe is defined by the diameter of the pipe, the thickness of the pipe, and the point sequence data of the center line of the pipe.

  In the example shown in FIG. 2, considering a case where a plurality of pipes are defined in one file, a line where a new pipe definition is started starts with 0 at the beginning of the line, and the pipe diameter, The pipe thickness and pipe name are separated by "," and written in the first line.

    In the second and subsequent lines in the example of FIG. 2, x, y, and z coordinate data of a three-dimensional point sequence of piping are described with one point per line separated by “,”.

  In some cases, a welding line for dividing the spool is determined in advance. In such a case, spool division data is set in advance together with the piping 3D data.

  An example of the spool division data is shown in FIG. In the example of the spool division data shown in FIG. 3, similarly to the pipe 3D data, the first line of the spool data of the same pipe has 0, the pipe diameter, the pipe thickness, and the pipe name “,”. Separate them with. In the second and subsequent lines, the spool number and the three-dimensional coordinates of the center point of the spool are described by being separated by “,”.

  If the first spool number is different, the same pipe name is regarded as a different spool. In addition, if there is a point where the spool cannot be grounded, for example, if there is a point that cannot be grounded because there is a possibility that the grounding cross section of the pipe may be damaged when grounding due to piping processing problems, Delimit and write "#".

  If the entire straight line part of the pipe cannot be grounded, for example, “*” is described for two adjacent break points on each center line of the pipe, and the pipe having a cross section with two points marked with “*”. The range of the cylindrical part cannot be grounded.

  FIG. 3 is an example of an input screen displayed on the display device 106 first when the spool diagram creation support device according to the present embodiment is activated. The example of the input screen shown in FIG. 3 has buttons for executing piping 3D data setting, spool grounding additional portion setting, spool stable grounding surface candidate creation, spool packing state confirmation, and spool 3 surface drawing generation / confirmation. The user presses the button for each of the setting, creation, and confirmation means described above to activate these setting, creation, and confirmation means.

  When the user first presses the button for executing the pipe 3D data setting at the top of FIG. 3, the pipe 3D data support means 104A provided in the spool diagram creation processing device 104 of FIG. A sub-window shown in FIG.

  FIG. 4 is an example showing a sub-window for selecting a file in which piping 3D information displayed on the display device 106 and a file in which spool 3D information is described are selected. The file shown in FIG. Is selected and selected, the selected pipe 3D data and spool 3D data are read.

  Then, the 3D information of the pipe including the pipe center line and the pipe outer diameter line as shown in FIG. 5 is displayed on the display device 106 by 3D CAD.

  In order to set a spool using this display screen shown in FIG. 5, spool 3D data is generated and edited by the spool setting means 104B provided in the spool diagram creation processing apparatus 104 of FIG.

  As an example of an editing method for generating and editing spool 3D data by the spool setting unit 104B, for example, when the mouse is placed at a position where a weld line on the center line in the piping 3D display screen shown in FIG. A cutting line indicating the spool cross section at the weld line position at the selected position is displayed (the dotted oval shown in FIG. 5).

  If the welding line is in the position selected by right-clicking the mouse, for example, when the setting button is pressed in the sub-window shown in FIG. 6, the welding line position of the spool is set.

  The spool setting means 104B automatically recognizes the range divided by this weld line and the end point of the original spool as a spool.

  For example, the spool number is automatically assigned in order from the one in which the (XYZ) coordinate of the pipe 3D has the largest value in the lexicographic order, and is overwritten on the spool 3D information file.

  The method for checking the spool of piping set in this way by the spool setting means 104B can be implemented as follows, for example.

  Left-clicking on the appropriate position of the pipe center line on the displayed 3D CAD screen with the mouse displays, for example, a pipe name as shown in FIG. 7 and a sub-window for setting and checking the spool number. The

  At the same time, for example, as shown by a thick line in FIG. 8, the set spool number and range can be confirmed by highlighting the range of the pipe spool including the clicked center line in the pipe. The spool number can also be changed from the subwindow of FIG.

  Furthermore, if the position of the weld line on the spool is considered inappropriate, picking the weld point on the spool center line with the mouse will delete the weld line in a sub-window as shown in Fig. 9, for example. If the answer is OK, the weld line is removed, and the weld line can be removed by changing the range of the spool.

  Moreover, when redrawing a weld line again, a new weld line is drawn similarly to the method demonstrated previously.

  When searching for a candidate for a stable installation surface when the spool comes into contact with the ground, it is necessary to designate in advance the part that cannot be grounded during construction. In that case, for example, as shown in FIG. 8, when the spool is specified, the button corresponding to the setting of the additional portion of the spool grounding in FIG. The provided spool grounding impossible surface setting means 104C is activated.

  The spool grounding impossible surface setting means 104C is set by designating the start point and the end point of the range in which grounding is impossible with the mouse and the center line of the spool on the GUI screen as shown in FIG. Designate the range from the start point to the end point as a range that cannot be grounded.

  When the cross section of the spool end cannot be grounded, for example, by defining the end point of the center line of the spool as the start point and the end point, the cross section of the spool end can be defined as being ungroundable.

  Next, when a button for executing spool stable ground plane candidate generation is pressed using the GUI shown in FIG. 3, the spool ground plane setting support means 104D is activated, and stable ground plane candidates in the set spool are generated. The

  FIG. 11 shows an example of an algorithm for generating a candidate for a stable ground contact surface in the spool, and an envelope polyhedron that is a minimal polyhedron including a three-dimensional polygonal line composed of the center line of the spool is generated. Each surface of the outer polyhedron is a candidate for a ground contact surface.

  FIG. 12 shows an example of the outer polyhedron for the spool. The polyhedron that is outward from the surface formed by the six triangles formed by the dotted line and the spool center line is the envelope polyhedron that includes the spool center line. Such an envelope polyhedron can be created by, for example, the method described in P101 and below of Non-Patent Document 2.

  Each surface of the outer envelope other surface body is a candidate for the contact surface of the spool. However, the installation surface including the part set by the spool non-contact surface setting means is excluded from the candidates.

  As in the example shown in FIG. 12, assuming that a part of the center line of the spool and the end point of the spool are defined as non-contactable surfaces, the spool diagram creation support device of this embodiment includes a surface including a noncontactable surface range. (1) and surface (3) are excluded from the contact surface candidates.

  Further, the surface (4) and the surface (5) including the non-contactable cutting surface are not excluded because the grounding is not necessarily impossible, for example, by protecting the cutting surface. The information is confirmed by a person by the spool packing state confirmation means 104F provided in 104, and excluded if necessary.

  Even if the non-contactable surface is not a point, if it can be grounded using the same protective material or the like, it is not excluded in the same manner, and it is excluded by the spool load confirmation means 104F.

  As a method of evaluating the spool stability for each candidate of the ground contact surface of the spool thus narrowed down, the spool stability determination means 104E is activated and, for example, as shown in FIG. Judgment is made based on whether or not the outer polygon formed by the portion of the spool that contacts the ground candidate includes a projection point PC projected from the 3D position of the center of gravity of the spool onto the contact surface. In addition, a method in which the center of gravity from the ground contact surface is stabilized in ascending order is also conceivable.

  FIG. 14 shows an example of an algorithm for determining the stability of the spool at a given contact surface by the method shown in FIG. In the example shown in FIG. 14, a list of ground contact surface candidates is given as a list of three-point coordinates representing a plane by the spool ground contact surface setting support means 104D provided in the spool diagram creation processing apparatus 104 of FIG. It is assumed that. It is also possible to give a list of plane equations.

  In the example shown in FIG. 14, the spool stability determination means 104E provided in the spool diagram creation processing device 104 of FIG. Is first determined, and the expression determines whether the point on the spool input by the format of FIG. 2 is in the ground plane, and for the point in the ground plane, the smallest containing convex polygon A on the ground plane Is generated.

  A detailed algorithm for generating the minimum inclusion convex polygon for a given point is described in, for example, P63 and below in Non-Patent Document 2.

On the other hand, assuming that the weight per unit length of the tube is constant from the 3D information of the spool, the 3D coordinates of the center of gravity can be easily obtained. When this coordinate point is C point (Xc, Yc, Zc), the projection point PC for the ground plane candidate is, for example, (Xc-ka, Yc-kb) when the plane formula of the ground plane candidate is aX + bY + cZ = 1. , Zc−kc), where k = a ² + b ² + c ² can be easily obtained.

  Finally, whether or not the point PC is included in the minimum including convex polygon A can be easily determined by, for example, P1 or less in Non-Patent Document 2. If the determination result shows that the point PC is included in the included convex polygon A, it is determined as a stable ground plane.

  In addition to this, the stability of the ground plane may be evaluated by the center of gravity and the distance to the ground plane. Among the ground plane candidates, only the stable ground plane is left as a ground plane candidate. The narrowed ground plane candidates are stored in the spool package data storage device as 3D data of the spool rotated with the ground plane as the XY plane.

  When the ground contact surface candidates are narrowed down, the spool package state confirmation unit 104F provided in the spool diagram creation processing device 104 of FIG. 1 is activated, and the data stored in the spool package state data storage device 102 is activated. Can be checked to see what the spool looks like with stable ground contact candidates.

  In the spool diagram creation support device of the present embodiment, a method for confirming the load appearance on the 3D CAD by the spool load appearance confirmation means 104F will be described. It is also possible to check the packaging.

  FIG. 15 shows an example of a screen on which the user confirms the load appearance on the ground contact surface candidate on 3D CAD by the spool load appearance confirmation means 104F. In this example shown in FIG. 15, the spool portion placed on the grounding surface is displayed thick, and the portion where grounding is prohibited is indicated by two white lines. Furthermore, the end points of spools that are designated as requiring attention to grounding are distinguished by crosses.

  In order to confirm the stability at the time of ground contact, the center of gravity of the spool, the projection point on the ground contact surface, and the minimum inclusion polygon of the spool to contact with the ground are displayed with a chain line, and the projection point of the center of gravity is displayed in the minimum inclusion polygon It can be confirmed that it is included. Further, the vertical and horizontal heights of the rectangular parallelepiped on which the spool is placed are displayed as values of W, L, and H with reference to the ground plane.

  FIG. 16 is a confirmation screen for a ground plane candidate similar to FIG. 15. FIG. 16 shows an example of the overall configuration of the ground plane candidate's packing, and a thumbnail of 3D display on the ground plane candidate is shown. When the user selects one of them on the left screen, the screen is enlarged and confirmed on the right screen as shown in FIG.

  When the ground plane corresponding to the selected thumbnail is determined as the ground plane for grounding the spool, the ground plane can be registered by pressing the bottom left ground plane determination button. Based on the registered ground contact surface, a spool 3 view is created by activating the spool 3 view generation means 104G provided in the spool diagram creation processing apparatus 104 of FIG.

  In the display screen shown in FIG. 15, the spool state can be confirmed by rotating the spool 360 degrees as in the case of general 3DCAD. Even when rotated, for example, the included rectangular parallelepiped contact surface is displayed semi-transparently as shown in FIG. 15 so that the contact surface can be seen.

  The three-sided view of the spool can be easily generated by projecting the spool onto the three faces of the rectangular parallelepiped shown in FIG. Although the bottom surface is fixed, how to define the side surface and the front surface is, for example, the two surfaces that are perpendicular to the longer side of the bottom surface as candidates for the side surface, Let the face be a front candidate.

  Which of the two side candidates and the front candidate is used for the three-sided view is determined by selecting, for example, a surface that is close to the origin of the original 3D CAD coordinates as the side surface of the two side candidates by default. It is conceivable to select candidates as well.

  Alternatively, as in the GUI example shown in FIG. 17, a 3D view of the selected ground plane is displayed, and a projection plane (not limited to only three planes) is selected by the user from the GUI, and the selected plane is displayed. Generate a projection view.

  In the GUI shown in FIG. 17, a default projection plane for generating a projection view is displayed with a thick frame. In this example, the left front, the bottom, and the front side are set. When the user clicks on a black frame, the black frame returns to a thin line and is removed from the drawing settings. On the other hand, when the user clicks on a non-black frame, for example, the back side of FIG. Is set to be a black frame and a projection drawing is generated. Accordingly, in some cases, six projections can be drawn by setting all six planes as projection planes.

  18 shows a three-view drawing generated by the spool three-view drawing creating means 104G provided in the spool drawing creation processing apparatus 104 shown in FIG. An example displayed by means 104H is shown. The vertical and horizontal height dimensions of the rectangular parallelepiped included in addition to the dimension lines shown in the normal three-view drawing, and the point of the center of gravity projected on each of the three faces are marked with X. The position is also indicated by a dimension line.

  Furthermore, the inclusion polygonal line with respect to the grounding point of the spool on the bottom surface is indicated by a dotted line, and it can be confirmed that the placement on the grounding surface is stable as compared with this and the point where the center of gravity is projected on the bottom surface.

  Additional information such as the center of gravity can be output to the same layer as other data of the drawing CAD data, but depending on the drawing CAD, the information may be displayed in a plurality of layers classified and superimposed. Such additional information can be easily output to such another layer.

  Thus, the display / non-display of the additional information can be easily controlled by operating the button “installation information display ON / OFF” on the left side of FIG.

  Further, by pressing the print button on the left side of FIG. 18, these displayed drawings can be printed, or saved in the format of a commercially available CAD drawing file with the save button, and stored in the spool three-view drawing data storage device 103. Editing on a commercially available CAD can be easily realized.

  If the direction of projection is to be changed, the 3D CAD display button on the left side of FIG. 18 is pressed to return to the original state, and the projection plane can be set again using the GUI screen of FIG.

  According to the spool diagram creation support device of the present embodiment of the present embodiment, it becomes possible to evaluate the exact transport dimension of the spool by knowing the stable placement of the spool at the time of transport. A spool diagram creation support method and a spool diagram creation support that can prevent accidents during inspection and damage to the spool can be realized.

  Next, a spool diagram creation support method and a spool diagram creation support device related to the shape of a pipe during transportation in a plant according to a second embodiment of the present invention will be described with reference to FIG.

  The spool diagram creation support device relating to the shape during transportation of piping in the plant of the second embodiment shown in FIG. 19 is the spool diagram creation assistance device relating to the shape during transportation of piping in the plant of the second embodiment shown in FIG. Since the basic configuration is the same, a description common to both is omitted, and different parts will be described below.

  In the spool diagram creation support device of the second embodiment, the spool diagram can not only support the sequential determination of the contact surface of each spool, but also can set the local weld line of the piping in a semi-automatic manner. An example of the creation support apparatus will be described.

  In the spool diagram creation support apparatus of this embodiment, when the system of the spool diagram creation support apparatus is activated, an overall control GUI shown in FIG. 20 is displayed. Here, when the button for executing the transportation constraint data setting shown in FIG. 20 is pressed, the transportation constraint input support means 200A provided in the spool diagram creation processing device 200 of the spool diagram creation support device in FIG. 19 is activated.

  The transport constraint input support means 200A is a means for supporting the input of transport constraints during spool transport. For example, the transport constraint input support means 200A displays the height H, length L, and width W of the transport container on the screen shown in FIG. Set and enter weight limits.

  At that time, the weight per length of the pipe to be evaluated is also set. In this example, a transport restriction is set to a height of 1.2 m, a length of 3.0 m, and a width of 2.0 m, and the weight is set to 1500 kg. These set transportation restrictions are stored in the transportation restriction data storage device 201.

  Based on such restrictions, until the spool diagram creation processing apparatus 200 is provided with the piping 3D data input support means 104A and the spool setting means 104B, the spool diagram creation processing in the first embodiment shown in FIG. This is the same as the case of the device 104, and the same operation is performed.

  Next, before going from the spool setting means 104B provided in the spool diagram creation processing apparatus 200 of this embodiment to the pipe contact impossible surface setting means 104C, the spool provided in the spool figure creation processing apparatus 200 shown in FIG. The weight constraint determination means 200B calculates the spool weight using the spool outer diameter, thickness, length, and specific gravity of the spool stored in the transport constraint data storage device, and stores the spool weight in the transport constraint data storage device. If the weight constraint is not satisfied, the operation of returning to the spool setting means 104B and redrawing the local weld line is supported.

  If the weight constraint is satisfied by the spool weight constraint determining means 200B, the non-groundable surface setting means 104C sets the non-groundable surface setting means 104C as in the case of the first embodiment, and the spool grounding surface is set. Similar to the spool diagram creation processing device 104 of the first embodiment described above, the setting support means 104D generates ground contact candidates and the spool stability determination means 104E narrows down to only stable ground contact candidates. It becomes the means of.

  Next, in the spool transport condition determination means 200C provided in the spool diagram creation processing device 200 of the spool diagram creation support device shown in FIG. 19, the height H, length L, width W with the ground contact surface of the spool as the bottom surface. Is smaller than the transport constraint height H, length L, and width W stored in the transport constraint data storage device 201.

  At that time, if all the constraints are satisfied by switching L and W, it is OK. If the transportation constraint is not satisfied, the ground contact surface candidate is excluded. The spool 3 screen generation means 104G and the spool 3 screen display means 104H below the spool package appearance confirmation means 104F are the same means as the spool diagram creation processing device 104 of the first embodiment, and support the creation of the spool diagram. Is. As a result, it is possible to generate a three-sided view of the spool that satisfies the transportation constraint.

  According to the present embodiment, it is possible to evaluate the exact transport dimension of the spool by knowing how to stably place the spool during transportation, and it is possible to prevent accidents or damage to the spool during transportation or inspection of the spool. Thus, it is possible to realize a spool diagram creation support method and a spool diagram creation support that can be prevented.

  The present invention can be applied to a spool diagram creation support method and a spool diagram creation support device related to the shape of piping during transportation in plants such as thermal power, chemicals, and nuclear power.

  101: Piping 3D data storage device, 102: Spool package data storage device, 103: Spool 3-side view storage device, 104: Spool drawing creation support device, 104A: Piping 3D data input support means, 104B: Spool setting means, 104C 104D: Spool grounding setting support means, 104E: Spool stability evaluation means, 104F: Spool packing state confirmation means, 104G: Spool 3-side view generation means, 104H: Spool 3-side view display means, 105: Input device, 105A: Mouse, 105B: Keyboard, 106: Display device, 200: Spool diagram creation support device, 200C: Spool transportation condition determination means.

Claims (12)

In the spool diagram creation support method of creating a drawing of the spool that configures the piping to be cut at the welding point from the three-dimensional information of the plant piping and the information of the welding point of the piping installed at the site,
A plurality of spools constituting the piping are respectively created on the basis of the three-dimensional information of the plant piping and the information on the welding points of the plurality of spools constituting the piping installed on the site,
Depending on whether or not the envelope polygon that includes the point sequence where each of the spools contacts the plane on the plane on which the created spools are grounded includes the point obtained by projecting the center of gravity of the spool onto the grounding plane, Determine the stability of the spool when it contacts the ground,
A spool diagram creation support method, comprising: creating a three-view drawing of a spool having a stable ground contact surface of the spool, which is determined to be stable, as a projection surface. The spool diagram creation support method according to claim 1,
The creation of a three-view drawing of a spool with a stable ground contact surface of the spool as one projection surface
A spool diagram creation support characterized by creating a three-sided view of a spool having a projected point of the center of gravity
Assistance method . An input device for inputting the three-dimensional information of the plant piping and the local welding point information of the piping, and the local welding point based on the three-dimensional information of the plant piping and the local welding point information of the piping input from the input device. In a spool diagram creation support device provided with a spool diagram creation support processing device for creating a drawing of a cut pipe spool,
The spool diagram creation support processing device includes a plurality of spools constituting the piping based on the three-dimensional information of the plant piping input from the input device and information on the welding points of the plurality of spools constituting the piping installed on site. Each spool setting means to create,
A spool ground plane setting support means for creating a plane on the assumption that the spool created by the spool setting means is grounded;
Whether the envelope polygon that includes the point sequence where each spool contacts the plane that the spool created by the spool contact surface setting support means contacts is a point that projects the center of gravity of the spool onto the ground plane Spool stability determination means for determining the stability of the spool when the spool is in contact with the contact surface depending on whether or not,
Spool three-view drawing generating means for creating a three-view drawing of a spool having a stable ground contact surface of the spool determined as stable by the spool stability determining means as one projection surface, respectively. A spool diagram creation support device characterized by the above . In the spool diagram creation support device according to claim 3,
The spool diagram creation support processing device is stable depending on whether or not the envelope polygon including the point sequence where the pipe is grounded on the plane assumed to be grounded includes the point where the center of gravity of the pipe spool is projected onto the ground plane. A spool diagram creation support device, comprising spool packing state confirmation means for presenting a plurality of stable ground contact candidates by determining the property . An input device for inputting the three-dimensional information of the plant piping and the local welding point information of the piping, and the local welding point based on the three-dimensional information of the plant piping and the local welding point information of the piping input from the input device. In a spool diagram creation support device provided with a spool diagram creation support processing device for creating a drawing of a cut pipe spool,
The spool diagram creation support processing device includes a plurality of spools constituting the piping based on the three-dimensional information of the plant piping input from the input device and information on the welding points of the plurality of spools constituting the piping installed on site. Each spool setting means to create,
Spool contact surface setting support means for creating each surface of the minimum inclusion convex polyhedron created from the center line of the spool by the spool setting means as a candidate of a contact surface on which the spool is grounded;
Whether the envelope polygon that includes the point sequence where each spool contacts the plane that the spool created by the spool contact surface setting support means contacts is a point that projects the center of gravity of the spool onto the ground plane Spool stability determination means for evaluating the stability of the spool when the spool is grounded on the grounding surface depending on whether or not,
The smallest rectangular parallelepiped including the spool whose bottom surface is the ground contact surface in each of the ground contact surface candidates that the spool grounded by the spool stability determination means is evaluated as stable, and the 3D coordinates using the ground contact surface as the bottom surface plane, etc. A spool diagram creation support device, comprising spool 3D data creation means for creating 3D data of a spool whose length has been converted, and a point at which the center of gravity and the center of gravity of the spool are projected onto the contact surface . An input device for inputting the three-dimensional information of the plant piping and the local welding point information of the piping, and the local welding point based on the three-dimensional information of the plant piping and the local welding point information of the piping input from the input device. In a spool diagram creation support device provided with a spool diagram creation support processing device for creating a drawing of a cut pipe spool,
The spool diagram creation support processing device includes a plurality of spools constituting the piping based on the three-dimensional information of the plant piping input from the input device and information on the welding points of the plurality of spools constituting the piping installed on site. Each spool setting means to create,
Spool contact surface setting support means for creating each surface of the minimum inclusion convex polyhedron created from the center line of the spool by the spool setting means as a candidate of a contact surface on which the spool is grounded;
For each ground plane candidate created by the spool ground plane setting support means, the spool stability when the spool is grounded with each ground plane candidate is included, and a point sequence where the spool grounds for each ground plane candidate is included. Spool stability determination means for determining and evaluating the stability of whether or not the envelope polygon to be included includes a point obtained by projecting the center of gravity of the spool onto the ground contact plane;
Spool three-view drawing generating means for creating a three-view drawing of a spool having a stable ground contact surface of the spool determined as stable by the spool stability determining means as one projection surface, respectively. A spool diagram creation support device characterized by the above . In the spool diagram creation support device according to claim 6,
The spool stability determination means installed in the spool diagram creation support processing device uses each surface of the smallest containing convex polyhedron created from the center line of the spool as a grounding surface candidate, and the spool is grounded at each grounding surface candidate. A spool diagram creation support apparatus characterized in that evaluation is performed by determining stability based on whether or not an outer polygon including a sequence of points includes a point obtained by projecting the center of gravity of the spool onto the ground plane. In the spool diagram creation support device according to claim 3 ,
The spool three-surface drawing generation unit installed in the spool diagram creation support processing device sets a stable ground contact surface of the spool, which is determined to be stable by the spool stability determination unit, as one projection surface, A spool diagram creation support device for creating a three-view drawing of a spool having projection points of the center of gravity of In the spool diagram creation support device according to claim 5 ,
The spool three-surface drawing generation means installed in the spool diagram creation support processing device comprises:
A three-sided view of a spool having a projected point of the center of gravity of the spool is created with a stable grounded surface of each grounded surface evaluated as stable by the spool stability determining means as one projected surface. A spool diagram creation support device. An input device for inputting the three-dimensional information of the plant piping and the local welding point information of the piping, and the local welding point based on the three-dimensional information of the plant piping and the local welding point information of the piping input from the input device. In a spool diagram creation support device provided with a spool diagram creation support processing device for creating a drawing of a cut pipe spool,
The spool diagram creation support processing device includes a plurality of spools constituting the piping based on the three-dimensional information of the plant piping input from the input device and information on the welding points of the plurality of spools constituting the piping installed on site. Each spool setting means to create,
Spool contact surface setting support means for creating each surface of the minimum inclusion convex polyhedron created from the center line of the spool by the spool setting means as a candidate of a contact surface on which the spool is grounded;
With respect to the respective ground plane candidates created by the spool ground plane setting support means, the spool stability when the spool is grounded with each ground plane candidate is shown. Spool stability determination means for determining and evaluating the stability of the envelope polygon including the point sequence to be grounded by including whether or not the center of gravity of the spool is projected on the ground plane;
Each of the stable ground contact surfaces evaluated as stable by the spool stability determination means is defined as one projection plane, and each is provided with spool three-view drawing generating means for creating a three-view drawing of the spool having a projection point of the center of gravity of the spool. A spool diagram creation support device characterized in that: In the spool diagram creation support device according to claim 5,
In the spool diagram creation support processing device, an envelope polygon including a point sequence in which each spool is grounded on a plane assumed to be grounded by the spool created by the spool ground plane setting support means, the center of gravity of the spool is grounded. Spool stability determination means for evaluating the stability of the spool when the spool is grounded on the grounding surface depending on whether or not the projected point is included on the plane;
Calculate and transport the height, length, and width of the smallest cuboid that encloses the spool whose grounding surface is the bottom surface for each grounding surface that is evaluated to be stable by the spool stability determining means. Spool transportation condition determination means for narrowing down to ground contact candidates that satisfy the constraints;
  Spool three-view drawing generating means for creating a three-view drawing of a spool having a projected surface of the center of gravity of the spool, with the ground-contact surface of the contact surface candidate narrowed down by the spool transport condition determining means as one projection plane, respectively. A spool diagram creation support device characterized by the above. An input device for inputting the three-dimensional information of the plant piping and the local welding point information of the piping, and the local welding point based on the three-dimensional information of the plant piping and the local welding point information of the piping input from the input device. In a spool diagram creation support device provided with a spool diagram creation support processing device for creating a drawing of a cut pipe spool,
The spool diagram creation support processing device includes a plurality of spools constituting the piping based on the three-dimensional information of the plant piping input from the input device and information on the welding points of the plurality of spools constituting the piping installed on site. Each spool setting means to create,
  Spool contact surface setting support means for creating each surface of the minimum inclusion convex polyhedron created from the center line of the spool by the spool setting means as a candidate of a contact surface on which the spool is grounded;
Whether the envelope polygon that includes the point sequence where each spool contacts the plane that the spool created by the spool contact surface setting support means contacts is a point that projects the center of gravity of the spool onto the ground plane Spool stability determination means for evaluating the stability of the spool when the spool is grounded on the grounding surface depending on whether or not,
The grounding surface that satisfies the transportation constraints by calculating the height, length, and width of the smallest cuboid that encloses the spool in each grounding surface that is evaluated as stable by the spool stability determining means. Spool transportation condition determination means for narrowing down to candidates;
  3D data of the smallest rectangular parallelepiped including a spool whose bottom surface is the ground contact surface of the ground contact surface candidate narrowed down by the spool transportation condition determining means, and the spool having the 3D coordinate is converted to the same length with the ground contact surface as the bottom surface, and A spool diagram creation support device comprising a spool three-view drawing generating means for creating a center of gravity of a spool and a point obtained by projecting the center of gravity on the ground contact surface.

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