Piping design support device, pipeline design support method, and pipeline design support program

Abstract

To provide a piping design support device capable of creating an economical pipe division diagram even for a large-scale pipeline, regardless of the skill of a designer. [Solution] A pipeline design support device including: an optimization target extraction unit that extracts, from among the pipes that make up a base pipeline, non-standard pipes whose connection mode can be changed and intersections where the non-standard pipes are arranged as optimization targets; an optimization target determination unit that determines, based on a connection mode comparison table that associates pre-optimization piping patterns with post-optimization piping patterns that are more economical than pre-optimization piping patterns, piping patterns that match pre-optimization piping patterns among piping patterns containing non-standard pipes extracted by the optimization target extraction unit as optimization targets; an optimization processing unit that converts any of the piping patterns determined to be optimization targets into post-optimization piping patterns so as to satisfy specified design conditions; and a drawing output unit that outputs the optimized pipeline as a pipeline design drawing.

Description

[Technical Field]

[0001] The present invention relates to a piping design support device, a pipeline design support method, and a pipeline design support program. [Background technology]

[0002] Patent Document 1 discloses a drawing information management device that uses a computer to manage a piping network such as a waterworks network. This drawing information management device is equipped with a functional block that executes a process called pipe division, which divides a pipeline between intersecting connection points, which is represented as a single pipe in the piping network, into multiple pipes that are actually laid.

[0003] Using a piping design support device equipped with such functional blocks, a designer specifies multiple intersections from the start point to the end point of a road on a map displayed on the display unit, then generates a pipeline that passes through each intersection (the pipeline is called a planned line) and generates a pipe division diagram that represents the pipeline with multiple pipes. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 08-287132 Summary of the Invention [Problem to be solved by the invention]

[0005] However, even if a designer designs each individual part with economy in mind, there is no guarantee that the pipe division drawing generated using a conventional piping design support device will be an inexpensive and economical one overall.

[0006] For example, even if a design is made with the intention of minimizing the amount of remaining pipe after cutting, the result may be an increase in the frequency of use of expensive parts, making the overall cost higher. Even experienced designers find it difficult to achieve an optimal design when the size of the pipeline increases.

[0007] In view of the above-mentioned problems, an object of the present invention is to provide a piping design support device, a pipeline design support method, and a pipeline design support program that are capable of creating an economical pipe layout diagram, even for large-scale pipelines, regardless of the skill of the designer. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, a first characteristic configuration of a piping design support device according to the present invention includes a base pipeline storage unit that stores base pipelines including special-shaped pipes arranged at a plurality of intersections extending from a start point to an end point specified on a map, and straight pipes and necessary cut pipes connecting each of the special-shaped pipes; an optimization target extraction unit that extracts, from each of the pipes that make up the base pipeline stored in the base pipeline storage unit, special-shaped pipes whose connection manner can be changed and the intersections where the special-shaped pipes are arranged, as optimization targets; a pre-optimization piping pattern that shows the pipe connection manner before optimization; and a post-optimization piping pattern that shows the pipe connection manner after optimization and is more economical than the pre-optimization piping pattern. a table storage unit that stores a connection mode comparison table that associates the various pipes with each other; an optimization target determination unit that determines, from among the piping patterns including the irregular pipes extracted by the optimization target extraction unit, a piping pattern that matches the pre-optimization piping pattern shown in the connection mode comparison table as an optimization target; an optimization processing unit that converts any of the piping patterns determined as an optimization target by the optimization target determination unit into the post-optimization piping pattern shown in the connection mode comparison table so as to satisfy predetermined design conditions; and a drawing output unit that outputs the appropriate pipeline optimized by the optimization processing unit as a pipeline design drawing.

[0009] A base pipeline is generated by placing special-shaped pipes at multiple intersections between a start point and an end point specified on a map through the designer's operation, and connecting each special-shaped pipe with straight pipes and necessary cut pipes. The base pipeline is then stored in the base pipeline. An optimization target extraction unit extracts, as optimization targets, special-shaped pipes whose connection patterns can be changed and intersections where the special-shaped pipes are located among the pipes constituting the base pipeline. An optimization target determination unit determines whether the extracted piping pattern including the special-shaped pipe is an optimization target based on a connection pattern comparison table stored in the storage unit. Specifically, the connection pattern comparison table associates pre-optimization piping patterns, which indicate pipe connection patterns before optimization, with post-optimization piping patterns, which indicate pipe connection patterns after optimization and are more economical than the pre-optimization piping patterns. If the extracted piping pattern including the special-shaped pipe matches any of the pre-optimization piping patterns specified in the connection pattern comparison table, the optimization target determination unit determines that the piping pattern is an optimization target. Furthermore, the optimization processing unit converts any of the piping patterns determined to be the target for optimization into an optimized piping pattern shown in the connection mode comparison table, thereby generating a base pipeline as an appropriate pipeline that can be realized economically and at low cost, and the appropriate pipeline is output by the drawing output unit.

[0010] The second characteristic configuration is that, in addition to the first characteristic configuration described above, the pre-optimization piping pattern is a piping pattern including a cut pipe, the post-optimization piping pattern is a piping pattern in which the cut pipe is replaced with another cut pipe, and the specified design condition is a condition that maintains a balance between the number of the cut pipes and the number of the other cut pipes.

[0011] A piping pattern determined to be an optimization target includes a cut pipe (A), and the corresponding post-optimization piping pattern includes other cut pipes, such as a cut pipe (B), that replace the cut pipe (A). Expensive P-Links are often used to connect cut pipes without a spigot protrusion, which tends to increase costs. Therefore, converting a piping pattern determined to be an optimization target to a post-optimization piping pattern that uses other cut pipes instead of the cut pipe (A) can reduce costs relatively. However, converting all piping patterns determined to be an optimization target to post-optimization piping patterns results in many cut pipes remaining as remaining pipes, which actually increases costs. Therefore, by limiting the targets for optimization processing so as to satisfy the design condition of maintaining a balance between the number of cut pipes (A) and the number of other cut pipes, it is possible to create an optimized pipeline that can be realized as a base pipeline at low cost while suppressing the number of remaining pipes.

[0012] The third characteristic configuration is that, in addition to the second characteristic configuration described above, the connection mode comparison table further includes the cost required for the piping pattern before optimization and the cost required for the piping pattern after optimization, and the optimization processing unit selects one of the piping patterns determined to be the optimization target as the target for optimization processing so that the total cost is minimized, and performs the optimization processing.

[0013] If the connection mode comparison table includes the costs required for the piping patterns before optimization and the costs required for the piping patterns after optimization, it becomes possible to grasp the specific cost reduction that will be achieved by the optimization process. Therefore, by selecting the piping pattern that has the smallest total cost from among the piping patterns determined to be optimization targets, it is possible to make the base pipeline the optimal pipeline that can be realized at the lowest cost.

[0014] A first characteristic configuration of the pipeline design support method according to the present invention includes a base pipeline storage step for storing a base pipeline including special-shaped pipes arranged at a plurality of intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes connecting each of the special-shaped pipes; an optimization target extraction processing step for extracting, from each of the pipes constituting the base pipeline stored in the base pipeline storage step, special-shaped pipes whose connection manner can be changed and the intersections at which the special-shaped pipes are arranged, as optimization targets; and a storage unit for storing a connection pattern comparison table that associates a pre-optimization piping pattern showing the pipe connection manner before optimization with a post-optimization piping pattern showing the pipe connection manner after optimization and that is more economical than the pre-optimization piping pattern. a connection mode comparison table storage step for storing the connection mode comparison table in the table; an optimization target determination processing step for determining, as an optimization target, a piping pattern that matches the pre-optimization piping pattern shown in the connection mode comparison table, among the piping patterns including the non-standard pipes extracted in the optimization target extraction processing step; an optimization processing step for converting any of the piping patterns determined to be an optimization target in the optimization target determination processing step into the post-optimization piping pattern shown in the connection mode comparison table so as to satisfy predetermined design conditions; and a drawing output processing step for outputting the appropriate pipeline optimized in the optimization processing step as a pipeline design drawing.

[0015] The second characteristic configuration is that, in addition to the first characteristic configuration described above, the pre-optimization piping pattern is a piping pattern including a cut pipe, the post-optimization piping pattern is a piping pattern in which the cut pipe is replaced with another cut pipe, and the specified design condition is a condition that maintains a balance between the number of the cut pipes and the number of the other cut pipes.

[0016] The third characteristic configuration is that, in addition to the second characteristic configuration described above, the connection mode comparison table further includes the cost required for the piping pattern before optimization and the cost required for the piping pattern after optimization, and the optimization processing step selects one of the piping patterns determined to be the optimization target as the target for optimization processing so that the total cost is minimized, and performs the optimization processing.

[0017] A first characteristic feature of the pipeline design support program according to the present invention is a computer that includes a base pipeline memory unit that stores base pipelines including special-shaped pipes arranged at multiple intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes connecting each of the special-shaped pipes; an optimization target extraction unit that extracts, from each of the pipes that make up the base pipeline stored in the base pipeline memory unit, special-shaped pipes whose connection manner can be changed and the intersections where the special-shaped pipes are arranged, as optimization targets; a pre-optimization piping pattern that shows the pipe connection manner before optimization; and a post-optimization piping pattern that shows the pipe connection manner after optimization and is more economical than the pre-optimization piping pattern. a table storage unit that stores a connection mode comparison table in which the various pipes are associated with each other; an optimization target determination unit that determines, among the piping patterns including the irregular pipes extracted by the optimization target extraction unit, a piping pattern that matches the pre-optimization piping pattern shown in the connection mode comparison table as an optimization target; an optimization processing unit that converts any of the piping patterns determined as an optimization target by the optimization target determination unit into the post-optimization piping pattern shown in the connection mode comparison table so as to satisfy predetermined design conditions; and a drawing output unit that outputs the appropriate pipeline optimized by the optimization processing unit as a pipeline design drawing.

[0018] The second characteristic configuration is that, in addition to the first characteristic configuration described above, the pre-optimization piping pattern is a piping pattern including a cut pipe, the post-optimization piping pattern is a piping pattern in which the cut pipe is replaced with another cut pipe, and the specified design condition is a condition that maintains a balance between the number of the cut pipes and the number of the other cut pipes.

[0019] The third characteristic configuration is that, in addition to the second characteristic configuration described above, the connection mode comparison table further includes the cost required for the piping pattern before optimization and the cost required for the piping pattern after optimization, and the optimization processing unit functions to select one of the piping patterns determined to be the optimization target as the target for optimization processing so as to minimize the total cost, and perform the optimization processing. [Effects of the Invention]

[0020] As described above, according to the present invention, it is possible to provide a piping design support device, a pipeline design support method, and a pipeline design support program that are capable of creating an economical pipe layout diagram, even for a large-scale pipeline, regardless of the skill of the designer. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is an explanatory diagram of a functional circuit block of a piping design support device according to the present invention. [Figure 2] (a) is an explanatory diagram of a planned line consisting of a main pipe and branch pipes connecting specified intersections, and (b) is an explanatory diagram of a pipe layout diagram automatically generated by the piping design support system. [Figure 3] 1 is a flowchart showing a procedure for generating a pipe layout diagram using a piping design support device according to the present invention. [Figure 4] Explanation of base pipe line (initial pipe division diagram) [Figure 5] FIG. 10 is an explanatory diagram of a connection mode comparison table; [Figure 6] Comparison of piping patterns before and after optimization [Figure 7] Flowchart showing the procedure for optimizing the base pipeline [Figure 8] FIG. 10 is an explanatory diagram of a connection mode comparison table including cost information [Figure 9] Comparison of pipe division diagrams before and after optimization treatment for 45° bent pipes [Figure 10] Comparison of pipe division diagrams before and after optimization treatment for gate valves DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, a piping design support device according to the present invention will be described with reference to the drawings. 1 shows a functional block configuration of a piping design support device 1. The piping design support device 1 includes a computer 10 operated by a designer who is an operator, and a drawing management server 20 connected to the computer 10 so as to be able to communicate with the computer 10.

[0023] Various types of computers such as a desktop computer, a laptop computer, a tablet computer, etc. can be used as the computer 10. In this embodiment, a laptop computer is used.

[0024] A circuit board housed in the main body case of laptop computer 10 is provided with multiple integrated circuits, such as a CPU, memory elements, peripheral circuits such as a timer, an input / output interface circuit, and a communication interface circuit. Connected via the input / output interface circuit are a liquid crystal display device 10A, an input device 10B consisting of a keyboard, a mouse, and a touch panel attached to the liquid crystal display device, and an output device 10C consisting of an inkjet or laser printer, and connected via the communication interface circuit to drawing management server 20.

[0025] The CPU executes the OS program installed in the memory element, causing the input / output interface circuit 10E and the communication interface circuit 10F to perform the desired functions, and the display device 10A, input device 10B, and output device 10C are controlled via the input / output interface circuit 10E, and necessary data is exchanged with the drawing management server 20 via the communication interface circuit 10F. Here, the Internet is preferably used as a communication medium for connecting to the drawing management server 20.

[0026] Furthermore, by the CPU executing the piping design support program, which is an application program installed in the memory element, under the control of the OS, a pipe layout diagram generating unit 11 that performs the desired function is realized on the arithmetic processing circuit 10D, which is composed of multiple integrated circuits such as the CPU, memory elements, and peripheral circuits.

[0027] The pipe division diagram generating unit 11 includes functional circuit blocks such as a base pipe line generating unit 12, a base pipe line storage unit 13, an optimization target extracting unit 14, a table storage unit 15, an optimization target determining unit 16, an optimization processing unit 17, and a drawing output unit 18. The base pipe line storage unit 13 and the table storage unit 15 are configured in one section of a memory element. In this embodiment, a pipe division diagram using GX-type ductile iron pipe, which is an earthquake-resistant pipe, will be described, but it can also be applied to other types of earthquake-resistant pipe.

[0028] 2(a) and 2(b), the base pipeline generation unit 12 is a functional circuit block that automatically generates a pipe layout drawing (see FIG. 2(b)) of a pipeline (the pipeline is called a planned line) that connects a plurality of intersections IP (IP1, IP2, IP3, and IP4 in FIG. 2(a)) that are specified via the input device 10B from a start point to an end point on a road included in a map displayed on the display device 10A, and passes through selectively specified passing instruction points CP (CP in FIG. 2(a)) between each intersection IP. When generating the base pipeline, information required for pipeline design, such as maps, pipe components, and existing pipe layout drawings required for piping design, is obtained from a database managed by the drawing management server 20, and the newly designed pipeline information is stored in the drawing management server 20.

[0029] 3, the base pipeline generation unit 12 displays a road map on a map layer in accordance with an operator's operation (SA1), and sets intersection points IP and necessary passing indicator points CP on a pipeline map layer that is superimposed on the map layer (SA2). Passing indicator points CP are specified when laying a cable along a road so that it draws a gentle curve.

[0030] The special-shaped pipes to be placed at each intersection point IP are selected and placed from the pipe components obtained from the drawing management server 23 (SA3), and the number of straight pipes to be placed between each intersection point IP and the required length of cut pipes are calculated and placed (SA4). The number of straight pipes to be placed between adjacent intersection points IP is calculated by dividing the length between one straight pipe by the length of one straight pipe, and the length of the cut pipes is calculated as the remainder. A pipe layout drawing is generated by bending and placing straight pipes within a predetermined allowable angle range so that they pass through the passing instruction point CP (SA5). In this way, the attributes and installation position (coordinates) of each pipe to be laid along the planned line are listed, and stored in the base pipeline memory unit 13 together with the pipe layout drawing (SA6). The pipe layout drawing and parts list stored in the base pipeline memory unit 13 are uploaded to the drawing management server 23 as needed, and also downloaded from the drawing management server 23 as needed. For example, the base pipeline uploaded to the drawing management server 23 is downloaded from the drawing management server 23 to perform the optimization process described below.

[0031] Although not described in detail, to facilitate operation by the operator, the display device 10A displays operation commands such as specifying an intersection point IP, specifying a passing point CP, and placing pipes in the form of selectable icons, and the operator can switch to an intersection point IP specification mode or a passing point CP specification mode by touching the corresponding display area, and can input the intersection point IP or the passing point CP by touching a predetermined position on the road map. Furthermore, when placing an irregular pipe at an intersection point IP, a selection of irregular pipes is displayed, and the operator can specify the irregular pipe to be placed by touching the corresponding display area. The operation interface is configured so that the operator can automatically generate a pipe layout drawing that will become the base pipeline by selecting an operation command displayed on the display device 10A.

[0032] Figure 4 shows a schematic example of a portion of the base pipeline created in this way. In this example, three intersections IPn, IPn+1, and IPn+2 are set in order from the base end, and a curved pipe or a joint ring, which is an irregular pipe, is placed at each intersection. The direction of the joints is determined in the construction order, and straight pipes are placed to connect the irregular pipes, and if a cut pipe is required, the cut pipe is placed just before or just after the irregular pipe.

[0033] In Figure 4, the cut pipe is shown with a thick line. In Figure 4, the white arrow indicates the direction of the joint, and the pipe is arranged so that the base end is the spigot and the tip end is the socket. The pipeline is designed in accordance with the pipeline standards for GX-type ductile iron pipe, but specific design policies vary from one utility to another, and in some cases the pipe is arranged so that the base end is the socket and the tip end is the spigot.

[0034] The optimization target extraction unit 14 is a functional circuit block that extracts, from among the pipes that make up the base pipeline stored in the base pipeline memory unit 13, non-standard pipes whose connection manner can be changed and intersections where non-standard pipes are located, as optimization targets.

[0035] "A special-shaped pipe with a changeable connection mode" refers to a pipe with a changeable receiving-insertion mode at the joint, specifically, a special-shaped pipe with a changeable receiving-insertion, insertion-receiving, or receiving-receiving mode. Specifically, this applies to special-shaped pipes such as 45° bends, 22.5° bends, and gate valves. Among these special-shaped pipes, special-shaped pipes and their intersections that allow for changes to the front and rear cut pipes are extracted.

[0036] "A special-shaped pipe that can be connected by changing the cut pipe before and after" refers to a special-shaped pipe that can be connected even if it is changed to either a cut pipe A or a cut pipe B. The optimization target extraction unit 14 extracts all 45° bends, 22.5° bends, and gate valves included in the base pipeline, as well as the intersections associated with those special-shaped pipes. In the base pipeline shown in Figure 4, the only special-shaped pipes that can be connected in a different manner are the 45° bends located at intersections IPn, IPn+1, and IPn+2.

[0037] The optimization target determination unit 16 is a functional circuit block that determines, among the piping patterns including irregular pipes extracted by the optimization target extraction unit, a piping pattern that matches the pre-optimization piping pattern shown in the connection mode comparison table stored in the table storage unit 15 as an optimization target.

[0038] 5 shows an example of a connection mode comparison table. The connection mode comparison table is a table that associates pre-optimization piping patterns, which indicate the connection modes of the pipes before optimization, with post-optimization piping patterns, which indicate the connection modes of the pipes after optimization and are more economical than the pre-optimization piping patterns. The connection mode comparison table is stored in advance in the drawing management server 20, and is downloaded from the drawing management server 20 to the table storage unit 15 during optimization processing.

[0039] For the above-mentioned "irregular pipes where there is room for changes to the cut pipes before and after," the piping patterns before and after optimization are associated with each other, distinguishing between cases where the cut pipe is connected to a straight pipe and cases where it is connected to an irregular pipe.

[0040] In this embodiment, the pre-optimization piping pattern shows a piping pattern in which a cut pipe is connected to the inlet of a single-receiving special-shaped pipe, and the post-optimization piping pattern shows a piping pattern in which a cut pipe is connected to the inlet of a double-receiving special-shaped pipe. Expensive P-Links are often used to connect cut pipes without inlet protrusions, which tends to increase costs. Therefore, by converting a piping pattern determined to be an optimization target to a post-optimization piping pattern that uses other cut pipes instead of the cut pipe, costs can be relatively reduced. Note that the post-optimization piping pattern may also incorporate a cut pipe other than the cut pipe, i.e., a cut pipe in the middle between the inlet and the inlet in addition to the cut pipe.

[0041] Figure 6 shows an example of piping patterns before and after optimization. The left side of the figure shows two sets of connections in the pre-optimization piping pattern, where pipes P1 and P2 are connected to the spigot of a single-end shaped pipe (curved pipe). The right side shows the connection converted to the post-optimization piping pattern, where one of the single-end shaped pipes has been changed to a double-end shaped pipe and pipe P12 is connected to the spigot of the double-end shaped pipe via G-Link. While the pre-optimization piping pattern requires two pipes, converting one of them to the post-optimization piping pattern makes efficient use of the single pipe P11 and the single pipe P12, which are cut from a straight pipe.

[0042] The optimization processing unit 17 is a functional circuit block that converts any of the piping patterns determined as optimization targets by the optimization target determination unit 16 into an optimized piping pattern shown in the connection mode comparison table so as to satisfy specified design conditions.

[0043] It is preferable to adopt a condition that the number of cut pipes and the number of other cut pipes are kept in balance as the "predetermined design condition," and the optimization processing unit 17 performs optimization processing so as to maintain the number of cut pipes and the number of other cut pipes in balance.

[0044] If all piping patterns determined to be optimization targets were converted to optimized piping patterns, many cut pipes would remain, resulting in unnecessary increases in costs. Therefore, by limiting the targets for optimization processing so as to satisfy the design condition of maintaining a balance between the number of cut pipes and the number of other cut pipes, it is possible to reduce the number of remaining pipes while making the base pipeline an optimized pipeline that can be realized at low cost.

[0045] "Maintaining a balance between the number of A-cut pipes and the number of other cut pipes" not only includes cases where the number of A-cut pipes and the number of B-cut pipes after conversion are the same, but also includes cases where the difference between the number of A-cut pipes and the number of B-cut pipes after conversion is a preset number, for example, 1. In this case, it is preferable that the number of B-cut pipes is equal to or greater than the number of A-cut pipes. Furthermore, this concept also includes cases where the total sum of the pipe lengths of the remaining pipes in the converted piping pattern is less than a predetermined length, for example, less than the length of one straight pipe or less than twice the length of one straight pipe.

[0046] 7 shows the optimization processing procedure executed by the pipe division diagram generating unit 11. When the above-mentioned base pipeline is stored in the base pipeline storage unit in the base pipeline storage step (SB1), an optimization target extraction processing step is executed to extract, as optimization targets, non-standard pipes whose connection manner can be changed and intersections where non-standard pipes are arranged, from among the pipes that make up the base pipeline (SB2).

[0047] A connection mode comparison table storage step is executed (SB3) in which the connection mode comparison table is downloaded from the drawing management server 20 and stored in the table storage unit, and an optimization target determination processing step is executed (SB4) in which, among the piping patterns including the irregular pipes extracted by the optimization target extraction processing step, a piping pattern that matches the pre-optimization piping pattern shown in the connection mode comparison table is determined to be an optimization target.

[0048] The optimization process step of converting any of the piping patterns determined to be optimization targets in the optimization target determination process step into an optimized piping pattern shown in the connection mode comparison table is repeated until predetermined design conditions are met (SB5, SB6, N). When the predetermined design conditions are met (SN6, Y), the optimization process is terminated, and the optimized pipe layout drawing is uploaded to the drawing management server 20 and printed out (SB7).

[0049] In step SB5, the intersections extracted in the optimization target extraction processing step and determined to be optimization targets are converted into optimized piping patterns in ascending or descending order, and as a result, in step SB6, it is determined whether the number of cut pipes and the number of other cut pipes are in balance, and if they are in balance, it is determined that the optimization processing has ended.

[0050] It is preferable that the connection mode comparison table further includes the cost required for the pre-optimization piping pattern and the cost required for the post-optimization piping pattern. It is more preferable that the optimization processing unit 17 selects any of the piping patterns determined to be the optimization target as the target for optimization processing and performs the optimization processing so that the predetermined design conditions described above are satisfied and the total cost calculated based on the connection mode comparison table is equal to or less than a preset target amount or is minimized.

[0051] For example, among the individual piping patterns determined to be the target for optimization, optimization processing can be performed in order starting from the piping pattern for which the difference between the cost required for the pre-optimization piping pattern and the cost required for the post-optimization piping pattern is the largest.

[0052] Figure 8 shows an example of a portion of the connection mode comparison table, including a list of costs required for the pre-optimization piping pattern and a list of costs required for the post-optimization piping pattern. The cost list for the pre-optimization piping pattern includes calculations for both cases where a spigot ring is used and where a P-Link is used. When a spigot ring is used, the material costs include a bent pipe, a cut pipe, a liner, and a spigot ring. The installation costs include two joining processes, cutting and groove cutting, and spigot ring installation, and the total cost is calculated. When a P-Link is used, the material costs include a bent pipe, a cut pipe, a liner, and a P-Link. The installation costs include two joining processes, P-Link joining, and cutting, and the total cost is calculated as the evaluation value. The cost list for the optimized piping pattern will require both bent pipes, a cut pipe (with protrusions), and G-Link as material costs, and the costs for G-Link joining work, joining work other than G-Link, and cutting work will be recorded as installation costs, with the total cost being calculated as the evaluation value.

[0053] In Figure 9, the upper section shows a pipe division diagram before optimization, including a 45° single-bend pipe with a nominal diameter of 100 as the special pipe, and the lower section shows a pipe division diagram after optimization, using a 45° double-bend pipe. The 45° bend surrounded by a dashed line shows the state before and after optimization. In Figure 10, the upper section shows a pipe division diagram before optimization, including a 45° single-bend valve as the special pipe with a nominal diameter of 100 as the special pipe, and the lower section shows a pipe division diagram after optimization, using a double-bend valve. The valve surrounded by a dashed line shows the state before and after optimization.

[0054] The connection mode comparison table to which the present invention is applied need only compare a pre-optimization piping pattern with a post-optimization piping pattern that is more economical than the pre-optimization piping pattern, and the pre-optimization piping pattern is not limited to a piping pattern in which a cut pipe is connected to the spigot of a single-receiving special-shaped pipe, and the post-optimization piping pattern is not limited to a piping pattern in which a cut pipe other than a cut pipe is connected to the spigot of a double-receiving special-shaped pipe. Furthermore, the costs added to the connection mode comparison table do not need to be the total cost of the pipe material and the cost of the joining work, but may be the cost of the pipe material only, or the cost of the joining work only, and may be set appropriately depending on the design evaluation criteria.

[0055] The connection mode comparison table need only compare a pre-optimization piping pattern with a post-optimization piping pattern that is more economical than the pre-optimization piping pattern, and the pre-optimization piping pattern is not limited to a piping pattern in which a cut pipe is connected to the insertion port of a single-receiving deformed pipe, and the post-optimization piping pattern is not limited to a piping pattern in which a cut pipe other than a cut pipe is connected to the receiving port of a double-receiving deformed pipe.

[0056] The pipeline design support program according to the present invention is an application program installed in the memory device described above, and includes a base pipeline memory unit that stores base pipelines including special-shaped pipes arranged at multiple intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes connecting each special-shaped pipe; an optimization target extraction unit that extracts, from each of the pipes that make up the base pipeline stored in the base pipeline memory unit, special-shaped pipes whose connection manner can be changed and intersections where special-shaped pipes are arranged, as optimization targets; a pre-optimization piping pattern that shows the pipe connection manner before optimization; and a post-optimization piping pattern that shows the pipe connection manner after optimization, which is more economical than the pre-optimization piping pattern. a table storage unit that stores a connection mode comparison table that associates pre-optimization piping patterns with the pre-optimization piping patterns; an optimization target determination unit that determines, from among the piping patterns including the irregular pipes extracted by the optimization target extraction unit, a piping pattern that matches a pre-optimization piping pattern shown in the connection mode comparison table as an optimization target; an optimization processing unit that converts any of the piping patterns determined as an optimization target by the optimization target determination unit into a post-optimization piping pattern shown in the connection mode comparison table so as to satisfy specified design conditions; and a drawing output unit that outputs the appropriate pipeline optimized by the optimization processing unit as a pipeline design drawing.

[0057] The piping pattern before optimization is a piping pattern that includes cut pipes, and the piping pattern after optimization is a piping pattern in which the cut pipes are replaced with other cut pipes, and the specified design condition is a condition that maintains a balance between the number of cut pipes and the number of other cut pipes.

[0058] Furthermore, the connection mode comparison table further includes the cost required for the piping pattern before optimization and the cost required for the piping pattern after optimization, and the optimization processing unit functions to select one of the piping patterns determined to be the target for optimization as the target for optimization processing so as to minimize the total cost, and perform the optimization processing.

[0059] The above-mentioned piping design support device can also be configured as a mobile device such as a smartphone or tablet computer. In that case, the piping design support application program can be installed on a cloud computer such as the drawing management server 20, and the smartphone or tablet computer can be equipped with an API (Application Programming Interface) that works in conjunction with the cloud computer.

[0060] The above-described embodiment shows one aspect of the present invention, and the technical scope of the present invention is not limited based on the description. It goes without saying that the present invention can be appropriately modified and designed within the scope in which the effects of the present invention are achieved. [Explanation of symbols]

[0061] 1: Piping design support device 10: Computer 10A: Display section 10B: Input section 10C: Output section 11: Pipe division diagram generation section 12: Base pipeline generation unit 13: Base pipeline memory section 14: Optimization target extraction unit 15: Table storage section 16: Optimization target determination unit 17: Optimization processing unit 18: Drawing output section 20: Drawing management server

Claims

1. a base pipeline memory unit that stores a base pipeline including special-shaped pipes arranged at a plurality of intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes connecting each special-shaped pipe; an optimization target extraction unit that extracts, from among the pipes that constitute the base pipeline stored in the base pipeline storage unit, a special-shaped pipe whose connection mode can be changed and the intersection at which the special-shaped pipe is located, as optimization targets; a table storage unit that stores a connection mode comparison table that associates pre-optimization piping patterns that indicate pipe connection modes before optimization with post-optimization piping patterns that indicate pipe connection modes after optimization and are more economical than the pre-optimization piping patterns; an optimization target determination unit that determines, among the piping patterns including the non-standard pipes extracted by the optimization target extraction unit, a piping pattern that matches the pre-optimization piping pattern shown in the connection mode comparison table as an optimization target; an optimization processing unit that converts any of the piping patterns determined as optimization targets by the optimization target determination unit into the post-optimization piping pattern shown in the connection aspect comparison table so as to satisfy predetermined design conditions; a drawing output unit that outputs the appropriate pipeline optimized by the optimization processing unit as a pipeline design drawing; A pipeline design support device including:

2. The piping pattern before optimization is a piping pattern including a cut pipe, and the piping pattern after optimization is a piping pattern in which the cut pipe is replaced with another cut pipe, 2. The pipeline design support device according to claim 1, wherein the predetermined design condition is a condition that a balance between the number of the first cut pipes and the number of the second cut pipes is maintained.

3. The connection mode comparison table further includes a cost required for the pre-optimization piping pattern and a cost required for the post-optimization piping pattern, The pipeline design support device according to claim 2, wherein the optimization processing unit selects one of the piping patterns determined to be the optimization target as the target for optimization processing so as to minimize the total cost, and performs optimization processing.

4. a base pipeline storage step for storing a base pipeline including special-shaped pipes arranged at a plurality of intersections extending from a start point to an end point specified on the map, and straight pipes and necessary cut pipes connecting each of the special-shaped pipes; an optimization target extraction processing step of extracting, from among the pipes constituting the base pipeline stored in the base pipeline storage step, a special-shaped pipe whose connection mode can be changed and the intersection at which the special-shaped pipe is located, as optimization targets; a connection mode comparison table storage step of storing a connection mode comparison table in a table storage unit, the connection mode comparison table correlating a pre-optimization piping pattern indicating a connection mode of a pipe before optimization with a post-optimization piping pattern indicating a connection mode of a pipe after optimization and being more economical than the pre-optimization piping pattern; an optimization target determination process step of determining, as an optimization target, a piping pattern that matches the pre-optimization piping pattern shown in the connection mode comparison table, from among the piping patterns including the special pipe extracted by the optimization target extraction process step; an optimization processing step of converting any of the piping patterns determined to be optimization targets in the optimization target determination processing step into the post-optimization piping pattern shown in the connection aspect comparison table so as to satisfy predetermined design conditions; a drawing output processing step of outputting the appropriate pipeline optimized in the optimization processing step as a pipeline design drawing; A pipeline design support method that executes the above on a computer.

5. The piping pattern before optimization is a piping pattern including a cut pipe, and the piping pattern after optimization is a piping pattern in which the cut pipe is replaced with another cut pipe, 5. The pipeline design support method according to claim 4, wherein the predetermined design condition is a condition that a balance is maintained between the number of the first cut pipes and the number of the second cut pipes.

6. The connection mode comparison table further includes a cost required for the pre-optimization piping pattern and a cost required for the post-optimization piping pattern, 6. The pipeline design support method according to claim 5, wherein the optimization processing step selects one of the piping patterns determined to be the optimization target as the target for optimization processing so as to minimize the total cost, and performs optimization processing.

7. Computer, a base pipeline memory unit that stores a base pipeline including special-shaped pipes arranged at a plurality of intersections from a start point to an end point specified on a map, and straight pipes and necessary cut pipes connecting each special-shaped pipe; an optimization target extraction unit that extracts, from among the pipes that constitute the base pipeline stored in the base pipeline storage unit, a special-shaped pipe whose connection mode can be changed and the intersection at which the special-shaped pipe is located, as optimization targets; a table storage unit that stores a connection mode comparison table that associates pre-optimization piping patterns that indicate pipe connection modes before optimization with post-optimization piping patterns that indicate pipe connection modes after optimization and are more economical than the pre-optimization piping patterns; an optimization target determination unit that determines, among the piping patterns including the non-standard pipes extracted by the optimization target extraction unit, a piping pattern that matches the pre-optimization piping pattern shown in the connection mode comparison table as an optimization target; an optimization processing unit that converts any of the piping patterns determined as optimization targets by the optimization target determination unit into the post-optimization piping pattern shown in the connection aspect comparison table so as to satisfy predetermined design conditions; a drawing output unit that outputs the appropriate pipeline optimized by the optimization processing unit as a pipeline design drawing; A pipeline design support program that enables the system to function as a pipeline.

8. The piping pattern before optimization is a piping pattern including a cut pipe, and the piping pattern after optimization is a piping pattern in which the cut pipe is replaced with another cut pipe, 8. The pipeline design support program according to claim 7, wherein the predetermined design condition is a condition that a balance between the number of the first cut pipes and the number of the second cut pipes is maintained.

9. The connection mode comparison table further includes a cost required for the pre-optimization piping pattern and a cost required for the post-optimization piping pattern, The pipeline design support program of claim 8, wherein the optimization processing unit functions to select one of the piping patterns determined to be the optimization target as the target for optimization processing so as to minimize the total cost.

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