A flange management node information statistics method

By establishing the correspondence between flanges, bolts, and gaskets during the drawing generation process, flange node information can be quickly compiled, solving the problem of low efficiency in traditional methods. This enables efficient identification and integration of flange node data, improving the safety and construction quality of marine engineering projects.

CN122154082APending Publication Date: 2026-06-05OFFSHORE OIL ENG QINGDAO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
OFFSHORE OIL ENG QINGDAO
Filing Date
2026-01-10
Publication Date
2026-06-05

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Abstract

The application discloses a flange management node information statistical method, which is based on a marine engineering piping professional drawing material table, and quickly identifies flange node data information for flange management through the corresponding relationship among a flange, a gasket and bolts. First, gasket information corresponding to a flange node number is screened out in the drawing material table, including flange node number, pipeline number, drawing number, gasket size, gasket pound level, gasket end face form, gasket material and the like. Then, flange material information corresponding to the flange node is found by taking the drawing number, the gasket size and the gasket pound level as matching values. Thirdly, bolt size and quantity of the flange node are matched by taking the flange size and the flange pound level as matching values. Finally, bolt material of the flange node is matched by taking the drawing number and the bolt size as matching values. The flange management node information statistical method can realize quick statistics of flange management node data information.
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Description

Technical Field

[0001] This invention belongs to the field of marine engineering technology, and in particular relates to a method for statistical analysis of flange management node information. Background Technology

[0002] Flange management is a systematic measure taken by petrochemical enterprises to strictly control the flange joint installation process in order to reduce flange joint leakage and ensure long-term reliable flange connection.

[0003] For marine engineering projects, the flange management node information sheet is an essential basic document for flange management. It typically includes information such as flange management node number, pipeline number, drawing number, flange size, flange weight class, end face type, flange material, number of bolts, bolt size, bolt material, gasket material, and torque value (or tensile value).

[0004] The number of flange nodes in marine engineering projects typically ranges from several thousand to tens of thousands. Traditional methods for collecting flange node information usually rely on manual extraction from drawings, which is inefficient.

[0005] Therefore, there is an urgent need to design a method for statistical analysis of flange management node information to solve the problems mentioned above. Summary of the Invention

[0006] To address the technical problem mentioned in the background section that traditional flange management node information statistics methods typically rely on manual extraction from drawings, a flange management node information statistics method is provided to solve the problem of identifying flange node data information for flange management.

[0007] To achieve the above objectives, the specific technical solution of the flange management node information statistics method of the present invention is as follows: A method for statistically analyzing flange management node information, based on the byproduct material report of the drawing generation process and the correspondence between flanges, bolts, and gaskets, enables rapid statistical analysis of flange node information. The method mainly includes the following steps: S1. Use the node number in the drawing material report as the unique code of the node, and create a table to correspond to the node number and the gasket specification; S2. Based on the correspondence between gasket specifications and flange specifications, supplement the flange dimensions, pressure rating, and end face information in the correspondence table obtained in S1. S3. Using "drawing number + dimension + pressure rating" as the matching value, match the flange material information corresponding to this node in the drawing material report, and match this information to the corresponding relationship table in S2 according to "drawing number + dimension + pressure rating". S4. Using "flange size + pressure rating" as the matching value, match the bolt size and quantity of the flange node, and match this information to the corresponding relationship table in S3 according to "flange size + pressure rating". S5. Using "drawing number + bolt size" as the matching value, match the bolt material of the flange node, and match this information to the corresponding relationship table in S4 according to "drawing number + bolt size" to obtain the final node data table.

[0008] Furthermore, in S1, the gasket specifications include size, pressure rating, end face type, and material.

[0009] Furthermore, when S1 is built based on the current marine engineering pipeline model, the flange node number is added to the gasket, and each gasket corresponds to a flange node number.

[0010] Furthermore, in S2, for the same flange node, the flange size and weight rating are consistent with the gasket size and weight rating.

[0011] Furthermore, in S3, given a fixed flange size and flange weight rating, the size and number of bolts that match it are also fixed.

[0012] Furthermore, in S4, when the bolt size is determined on a single drawing, the bolt material is fixed.

[0013] The flange management node information statistics method of the present invention has the following advantages: (1) Based on the material list of marine engineering piping professional drawings, this invention can quickly identify the flange node data information used for flange management by the correspondence between flanges, gaskets and bolts.

[0014] (2) By using the missing or unmatched information in the flange node information table, the present invention can reverse the error that occurred in the detailed design or processing design stage, such as the design error of bolt size or bolt quantity, flange weight or gasket weight, etc. Compared with the traditional manual query of drawings to find flange node information, the work efficiency is greatly improved. Attached Figure Description

[0015] Figure 1 This is a flowchart illustrating the flange management node information statistics method of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0018] The following is a reference to the appendix. Figure 1 The present invention describes a method for statistical analysis of flange management node information.

[0019] like Figure 1 As shown, the flange management node information statistics method of this invention achieves rapid statistics of flange node information based on the by-product drawing material report generated during the drawing generation process, as well as the correspondence between flanges, bolts, and gaskets. It mainly includes the following steps: S1. Use the node number in the drawing material report as the unique code of the node, and create a table to correspond to the node number and the gasket specification; The gasket specifications include dimensions, pressure rating, end face type, and material; and when building the current marine engineering pipeline model, the flange node number is added to the gasket, with each gasket corresponding to a flange node number.

[0020] Specifically, the gasket is the core sealing component of the flange connection. Binding the node number to the gasket is equivalent to directly assigning a unique identification code to a set of flange connection pairs (including the two mating flanges, bolts, and gaskets).

[0021] Compared to marking the node number on the flange body, this avoids problems such as possible reuse and numbering conflicts on the flange body, ensuring that each flange connection has one and only one corresponding node number, thus eliminating identification confusion from the source.

[0022] Marine engineering pipeline models involve a large amount of attribute data (such as pressure rating, material, specifications, inspection standards, etc.). When a gasket is used as the node number carrier, all associated data of the flange connection can be directly attached to that node number, forming a complete data chain of "node number - gasket - flange pair - accessories".

[0023] S2. Based on the correspondence between gasket specifications and flange specifications, supplement the flange dimensions, pressure rating, and end face information in the correspondence table obtained in S1. For the same flange node, the flange size and weight rating are consistent with the gasket size and weight rating.

[0024] Preferably, the core function of a flange connection is sealing and pressure bearing. The dimensions of the gasket (inner diameter, outer diameter, thickness) must be precisely matched with the flange sealing surface, and the pressure rating must be consistent with the flange's pressure resistance rating to ensure a good sealing effect. If these parameters are inconsistent, problems such as the gasket not being able to completely cover the flange sealing surface and insufficient pressure bearing capacity may occur, which can easily lead to media leakage in high-pressure / corrosive marine environments, and even cause safety accidents.

[0025] Enforcing that flanges and gaskets at the same node have the same parameters can directly avoid such design errors and improve the inherent safety of pipeline systems.

[0026] S3. Using "drawing number + dimension + pressure rating" as the matching value, match the flange material information corresponding to this node in the drawing material report, and match this information to the corresponding relationship table in S2 according to "drawing number + dimension + pressure rating". Given a fixed flange size and flange weight rating, the size and number of bolts that match it are also fixed.

[0027] Furthermore, flanges are critical pressure-bearing components in marine engineering, and incompatible materials can directly lead to safety hazards. Procurement personnel can accurately order flanges of the corresponding material based on the matching values ​​of "drawing number + size + pressure rating," avoiding procurement deviations caused by incomplete parameters. During warehousing management, flange materials can be classified, stored, and labeled according to this matching value. When issuing materials, only these three sets of parameters need to be checked to quickly issue flanges of the corresponding material, eliminating the risk of incorrect issuance or use.

[0028] Meanwhile, using the combination of "drawing number + dimension + pressure rating" as the matching value is equivalent to locking in a unique flange node from three dimensions: drawing attribution, physical specifications, and pressure resistance performance. This can completely avoid "material confusion caused by relying solely on size / pressure rating matching" and ensure that the extracted material information completely corresponds to the flange node installed on site.

[0029] S4. Using "flange size + pressure rating" as the matching value, match the bolt size and quantity of the flange node, and match this information to the corresponding relationship table in S3 according to "flange size + pressure rating". In one drawing, when the bolt size is determined, the bolt material is also fixed.

[0030] Preferably, the flange dimensions (such as nominal diameter and sealing surface type) and pressure rating are the core factors in determining the bolt specifications (diameter and length) and quantity. The higher the pressure rating, the greater the required bolt strength and quantity; the larger the flange size, the more the number and length of bolts must be matched accordingly.

[0031] Using these two parameters as matching values, the corresponding bolt parameters can be directly retrieved from the standard database or design manual, avoiding bolt specification mismatch caused by estimation based on experience; at the same time, it eliminates the complicated stress calculation process, greatly shortens the determination cycle of bolt parameters, and adapts to the needs of batch design of marine engineering pipelines.

[0032] Furthermore, offshore construction sites are limited and the pace of work is fast. Construction workers can quickly confirm the size, quantity, and material of the required bolts by using the flange dimensions and pressure rating, without having to carry complicated parameter comparison tables, thus reducing on-site verification time.

[0033] Meanwhile, a unified “size-material” correspondence rule can ensure that the installation torque, tightening sequence and other construction parameters of bolts of the same specification are consistent, thereby improving the installation quality of flange connections.

[0034] During quality inspection, inspectors only need to check the bolt dimensions to determine whether the material meets the design requirements, without the need for additional material testing, thus simplifying the inspection process and shortening the acceptance cycle.

[0035] S5. Using "drawing number + bolt size" as the matching value, match the bolt material of the flange node, and match this information to the corresponding relationship table in S4 according to "drawing number + bolt size" to obtain the final node data table. Preferably, the final node data table will integrate all information such as "drawing number + flange size + pressure rating + gasket parameters + bolt size / quantity / material". The step of matching the material with "drawing number + bolt size" is equivalent to completing the precise puzzle of bolt material for this data table.

[0036] Compared to the scattered storage of flange, gasket, and bolt data, the integrated node data table achieves closed-loop management where "one flange node equals a complete set of parameters." When anyone retrieves data, they can obtain all the key information of that node at once without having to cross-query or splice data in multiple tables.

[0037] Furthermore, marine engineering pipeline projects involve multiple disciplines such as design, procurement, construction, and operation and maintenance, and each discipline has different requirements for flange node data: design focuses on parameter matching, procurement focuses on material specifications, and construction focuses on installation requirements.

[0038] A unified node data table can serve as a single data source across disciplines. Professionals can quickly obtain the information they need by searching using "drawing number + bolt size" or other combinations of conditions, without having to repeatedly communicate and confirm data definitions, thus reducing collaboration costs caused by professional barriers.

[0039] If bolt material information is scattered across different documents such as design drawings, bolt specification sheets, and purchase lists, it is easy to generate contradictory data such as "the same drawing + the same bolt size corresponding to different materials".

[0040] By using a unified matching and integration table, the correspondence between "drawing number + bolt size" and material can be solidified. All subsequent stages (design, procurement, construction) will be based on the final node data table, completely eliminating data redundancy and inconsistency, and reducing the risk of material mismatch and construction errors caused by data contradictions from the source.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for statistically analyzing flange management node information, which, based on the byproduct material report of the drawing generation process and the correspondence between flanges, bolts, and gaskets, achieves rapid statistical analysis of flange node information, characterized in that... The main steps include: S1. Use the node number in the drawing material report as the unique code of the node, and create a table to correspond to the node number and the gasket specification; S2. Based on the correspondence between gasket specifications and flange specifications, supplement the flange dimensions, pressure rating, and end face information in the correspondence table obtained in S1. S3. Using "drawing number + dimension + pressure rating" as the matching value, match the flange material information corresponding to this node in the drawing material report, and match this information to the corresponding relationship table in S2 according to "drawing number + dimension + pressure rating". S4. Using "flange size + pressure rating" as the matching value, match the bolt size and quantity of the flange node, and match this information to the corresponding relationship table in S3 according to "flange size + pressure rating". S5. Using "drawing number + bolt size" as the matching value, match the bolt material of the flange node, and match this information to the corresponding relationship table in S4 according to "drawing number + bolt size" to obtain the final node data table.

2. The method for statistical analysis of flange management node information according to claim 1, characterized in that, In S1, gasket specifications include size, pressure rating, end face type, and material.

3. The method for statistical analysis of flange management node information according to claim 1, characterized in that, When S1 is built based on the current marine engineering pipeline model, the flange node number is added to the gasket, and each gasket corresponds to a flange node number.

4. The method for statistical analysis of flange management node information according to claim 1, characterized in that, In S2, for the same flange node, the flange size and weight rating are consistent with the gasket size and weight rating.

5. The method for statistical analysis of flange management node information according to claim 1, characterized in that, In S3, given a fixed flange size and flange weight rating, the size and number of bolts that match it are also fixed.

6. The method for statistical analysis of flange management node information according to claim 1, characterized in that, In S4, when the bolt size is determined on a single drawing, the bolt material is fixed.