CN-121980421-A - Expert logic mode-based intelligent industrial pipeline grade judging method and system

CN121980421ACN 121980421 ACN121980421 ACN 121980421ACN-121980421-A

Abstract

The invention discloses an intelligent industrial pipeline grade judging method and system based on an expert logic mode, and belongs to the field of industrial pipeline safety supervision. The method comprises the steps of constructing a medium library containing various characteristic labels and key parameters of a medium, receiving input parameters of a user, carrying out preliminary judgment based on the input parameters, directly judging that supervision is not needed if the input parameters do not meet supervision thresholds, otherwise, entering a medium characteristic judgment flow, carrying out independent judgment of acute toxicity, flammability, corrosiveness, explosiveness and liquefied gas in sequence according to expert logic rules, respectively outputting GC1 and GC2 or intermediate results which do not need supervision, finally, summarizing the intermediate results, and outputting the highest grade as the final grade of the industrial pipeline according to GC1 and GC2 and the priority which do not need supervision so as to solve the problems of difficult connection of new and old specifications, complex judgment process, insufficient intelligent degree and the like.

Inventors

LI WENZHEN
FAN WENJUAN
CAI YANBIN
SU ZHIJIAN
LV HAO
LI CHAO
LUO GANMING
HU ZHUQIANG
LIN XIANGBIN
OU JIANWEN

Assignees

广东省特种设备检测研究院东莞检测院

Dates

Publication Date: 20260505
Application Date: 20260127

Claims (10)

1. An intelligent industrial pipeline grade judging method based on an expert logic mode is characterized by comprising the following steps of: Constructing a medium library, and setting characteristic labels for each medium, wherein the characteristic labels comprise an acute toxicity type, a inflammability type, a corrosiveness label, an explosiveness label, a steam label, an oxygen label, a liquefied gas label, and a boiling point temperature, a critical temperature, a flash point, a lower explosion limit and an upper explosion limit of the medium; receiving industrial pipeline use parameters input by a user, wherein the industrial pipeline use parameters comprise a medium name, a nominal diameter, a highest working pressure, a design pressure, a highest working temperature and a design temperature; based on the use parameters of the industrial pipeline, preliminary judgment is carried out, if the highest working pressure is less than 0.1MPa or the nominal diameter is less than 50mm, the monitoring is not needed, otherwise, a medium characteristic judgment flow is entered, and the method comprises the following steps: Respectively carrying out acute toxicity judgment, inflammability judgment, corrosiveness judgment, explosiveness judgment and liquefied gas judgment, wherein each judgment flow outputs an industrial pipeline grade GC1, an industrial pipeline grade GC2 or an intermediate result without supervision according to expert logic rules based on characteristic labels and the use parameters in a medium library; and summarizing the intermediate results, and outputting the highest grade as the final grade of the industrial pipeline according to the priority that the industrial pipeline grade GC1> the industrial pipeline grade GC2> does not need supervision.
2. The intelligent industrial pipeline grade determination method based on the expert logic mode according to claim 1, wherein the acute toxicity determination procedure comprises: Outputting an industrial pipeline grade GC1 if the acute toxicity of the medium is in a category 1; If the acute toxicity of the medium is in a category 2, and the highest working temperature is more than or equal to the boiling point temperature of the medium, outputting an industrial pipeline grade GC1; Outputting an industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃ if the highest working temperature is less than the boiling point temperature of the medium, otherwise outputting an industrial pipeline grade GC2; If the acute toxicity of the medium is category 3, outputting the industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, otherwise outputting the industrial pipeline grade GC2.
3. The intelligent industrial pipeline grade determining method based on the expert logic mode according to claim 1, wherein the flammability determining process comprises: firstly judging the relation between the highest working temperature and the boiling point temperature of the medium; Outputting an industrial pipeline grade GC1 if the inflammability of the medium is category 1, category 2 or chemical instability gas and the design pressure is more than or equal to 4MPa when the highest working temperature is more than or equal to the boiling point temperature of the medium, outputting the industrial pipeline grade GC1 if P is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, and outputting the rest industrial pipeline grades GC2 if P is more than or equal to 10MPa or the design pressure is more than or equal to 400 ℃; when the highest working temperature is less than the boiling point temperature of the medium, outputting the industrial pipeline grade GC1 if the inflammability of the medium is in a category 1 or a category 2 and the design pressure is more than or equal to 4MPa, otherwise, judging in a category 3 or a category 4, and outputting the corresponding grade according to the comparison of the flash point and the highest working temperature and the pressure-temperature condition.
4. The intelligent industrial pipeline grade determining method based on the expert logic mode according to claim 1, wherein the explosiveness determining process comprises: If the LEL of the medium is less than 10% or the UEL-LEL is more than or equal to 20%, outputting an industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, otherwise outputting GC2; If the explosive condition is not satisfied, outputting an industrial pipeline grade GC1 or an industrial pipeline grade GC2 according to the pressure-temperature condition for the pipeline with the highest working pressure of more than or equal to 1.6MPa when the highest working temperature is more than or equal to the boiling point temperature of the medium, outputting the industrial pipeline grade GC1 for the pipeline with the highest working pressure of less than 1.6MPa and the nominal diameter of more than or equal to 150mm, otherwise outputting without supervision.
5. The intelligent industrial pipeline grade determining method based on the expert logic mode according to claim 1, wherein the liquefied gas determining process comprises: if the medium is steam or oxygen, outputting GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, otherwise outputting industrial pipeline grade GC2; If the medium is liquefied gas and the highest working temperature is less than the critical temperature, outputting the industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, otherwise outputting the industrial pipeline grade GC2.
6. An intelligent industrial pipeline grade determining system based on expert logic mode, comprising: The construction module is used for constructing a medium library, and setting characteristic labels for each medium, wherein the characteristic labels comprise an acute toxicity type, a inflammability type, a corrosiveness mark, an explosiveness mark, a steam mark, an oxygen mark, a liquefied gas mark, and a boiling point temperature, a critical temperature, a flash point, a lower explosion limit and an upper explosion limit of the medium; the receiving module is used for receiving the industrial pipeline use parameters input by a user, wherein the industrial pipeline use parameters comprise a medium name, a nominal diameter, a highest working pressure, a design pressure, a highest working temperature and a design temperature; The preliminary judgment module is used for carrying out preliminary judgment based on the using parameters of the industrial pipeline, judging that supervision is not needed if the highest working pressure is less than 0.1MPa or the nominal diameter is less than 50mm, and entering a medium characteristic judgment flow unit if not, wherein the preliminary judgment module comprises: The acute toxicity judging subunit, the inflammability judging subunit, the corrosiveness judging subunit, the explosiveness judging subunit and the liquefied gas subunit respectively perform acute toxicity judgment, inflammability judgment, corrosiveness judgment, explosiveness judgment and liquefied gas judgment, and each judging process outputs an industrial pipeline grade GC1, an industrial pipeline grade GC2 or an intermediate result which does not need supervision according to expert logic rules based on characteristic labels and the use parameters in a medium library; and the final judging module is used for summarizing the intermediate results and outputting the highest grade as the final grade of the industrial pipeline according to the priority that the industrial pipeline grade GC1> and the industrial pipeline grade GC2> do not need to be regulated.
7. The intelligent industrial pipeline grade determination system based on the expert logic model of claim 6, wherein the acute toxicity determination subunit determination procedure comprises: Outputting an industrial pipeline grade GC1 if the acute toxicity of the medium is in a category 1; If the acute toxicity of the medium is in a category 2, and the highest working temperature is more than or equal to the boiling point temperature of the medium, outputting an industrial pipeline grade GC1; Outputting an industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃ if the highest working temperature is less than the boiling point temperature of the medium, otherwise outputting an industrial pipeline grade GC2; If the acute toxicity of the medium is category 3, outputting the industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, otherwise outputting the industrial pipeline grade GC2.
8. The intelligent industrial pipeline grade determination system based on the expert logic mode of claim 6, wherein the flammability determination subunit determination process comprises: firstly judging the relation between the highest working temperature and the boiling point temperature of the medium; Outputting an industrial pipeline grade GC1 if the inflammability of the medium is category 1, category 2 or chemical instability gas and the design pressure is more than or equal to 4MPa when the highest working temperature is more than or equal to the boiling point temperature of the medium, outputting the industrial pipeline grade GC1 if P is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, and outputting the rest industrial pipeline grades GC2 if P is more than or equal to 10MPa or the design pressure is more than or equal to 400 ℃; when the highest working temperature is less than the boiling point temperature of the medium, outputting the industrial pipeline grade GC1 if the inflammability of the medium is in a category 1 or a category 2 and the design pressure is more than or equal to 4MPa, otherwise, judging in a category 3 or a category 4, and outputting the corresponding grade according to the comparison of the flash point and the highest working temperature and the pressure-temperature condition.
9. The intelligent industrial pipeline grade determination system based on the expert logic mode of claim 6, wherein the explosiveness determination subunit determination flow comprises: If the LEL of the medium is less than 10% or the UEL-LEL is more than or equal to 20%, outputting an industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, otherwise outputting GC2; If the explosive condition is not satisfied, outputting an industrial pipeline grade GC1 or an industrial pipeline grade GC2 according to the pressure-temperature condition for the pipeline with the highest working pressure of more than or equal to 1.6MPa when the highest working temperature is more than or equal to the boiling point temperature of the medium, outputting the industrial pipeline grade GC1 for the pipeline with the highest working pressure of less than 1.6MPa and the nominal diameter of more than or equal to 150mm, otherwise outputting without supervision.
10. The intelligent industrial pipeline grade determination method based on the expert logic mode according to claim 6, wherein the liquefied gas subunit determination procedure comprises: if the medium is steam or oxygen, outputting GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, otherwise outputting industrial pipeline grade GC2; If the medium is liquefied gas and the highest working temperature is less than the critical temperature, outputting the industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃, otherwise outputting the industrial pipeline grade GC2.

Description

Expert logic mode-based intelligent industrial pipeline grade judging method and system Technical Field The invention relates to the technical field of industrial pipeline safety supervision, in particular to an intelligent industrial pipeline grade judging method and system based on an expert logic mode. Background Industrial pipelines are widely used in the fields of petrochemical industry, energy sources and the like, and the safety supervision of the industrial pipelines is important. At present, the grade judgment of the industrial pipeline is mainly finished according to the standards of special equipment catalogue, pressure pipeline standard industrial pipeline (GB/T20801-2020) and the like by manually consulting a plurality of standards and gradually analyzing the medium characteristics and pipeline parameters, and the problems of low efficiency, easy error, high professional threshold and the like exist. Although some attempts have been made to make intelligent decision, such as an intelligent industrial pipeline grade decision system and method disclosed in application number 202410986993.8, there are significant differences in grade classification, medium characteristics definition, decision logic, etc. from the new specification of industrial pipeline safety technical Specification (TSG 31-2025) implemented on 1 st 2026, based on the old specifications of GB/T20801-2020, etc. For example, the old method divides the industrial pipeline into GC1, GC2 and GC3 and does not need to be regulated to four levels, while the new specification is divided into GC1, GC2 and does not need to be regulated to three levels, and the definition and classification basis of the medium such as acute toxicity, flammability, corrosiveness and the like in the old method are also different from the new specification. In addition, the old method still depends on manual calibration or simple condition judgment in aspects of medium phase state, liquefied gas state identification and the like, and is not scientific and accurate enough. Therefore, how to realize efficient, accurate and intelligent industrial pipeline grade judgment after implementing the new specification is a problem to be solved in the field. Disclosure of Invention In view of the above, the invention provides an intelligent industrial pipeline grade judging method and system based on an expert logic mode, so as to solve the problems of difficult connection of new and old specifications, complex judging process, insufficient intelligent degree and the like. In order to achieve the above purpose, the present invention adopts the following technical scheme: An intelligent industrial pipeline grade judging method based on expert logic mode comprises the following steps: Constructing a medium library, and setting characteristic labels for each medium, wherein the characteristic labels comprise an acute toxicity type, a inflammability type, a corrosiveness label, an explosiveness label, a steam label, an oxygen label, a liquefied gas label, and a boiling point temperature, a critical temperature, a flash point, a lower explosion limit and an upper explosion limit of the medium; receiving industrial pipeline use parameters input by a user, wherein the industrial pipeline use parameters comprise a medium name, a nominal diameter, a highest working pressure, a design pressure, a highest working temperature and a design temperature; based on the use parameters of the industrial pipeline, preliminary judgment is carried out, if the highest working pressure is less than 0.1MPa or the nominal diameter is less than 50mm, the monitoring is not needed, otherwise, a medium characteristic judgment flow is entered, and the method comprises the following steps: Respectively carrying out acute toxicity judgment, inflammability judgment, corrosiveness judgment, explosiveness judgment and liquefied gas judgment, wherein each judgment flow outputs an industrial pipeline grade GC1, an industrial pipeline grade GC2 or an intermediate result without supervision according to expert logic rules based on characteristic labels and the use parameters in a medium library; and summarizing the intermediate results, and outputting the highest grade as the final grade of the industrial pipeline according to the priority that the industrial pipeline grade GC1> the industrial pipeline grade GC2> does not need supervision. Further, the acute toxicity judging procedure includes: Outputting an industrial pipeline grade GC1 if the acute toxicity of the medium is in a category 1; If the acute toxicity of the medium is in a category 2, and the highest working temperature is more than or equal to the boiling point temperature of the medium, outputting an industrial pipeline grade GC1; Outputting an industrial pipeline grade GC1 when the design pressure is more than or equal to 10MPa or the design pressure is more than or equal to 4MPa and the design temperature is more than or equal to 400 ℃ if the hi