CN-122022104-A - LDAR compliance auditing method and system based on data tracing

CN122022104ACN 122022104 ACN122022104 ACN 122022104ACN-122022104-A

Abstract

The invention relates to the technical field of industrial environment detection, in particular to a LDAR compliance auditing method and system based on data tracing, wherein the method comprises the steps of acquiring LDAR inspection equipment sampling data, environment background value monitoring data, equipment space topology data and path track data in the detection process; extracting gas diffusion disturbance characteristics caused by detection behaviors of the inspection equipment, constructing detection behavior physical fingerprints representing disturbance effects of the detection behaviors on a gas concentration field, analyzing detection action positions and action time sequences of the inspection equipment, constructing detection disturbance constraint sequences, performing traceability verification on the detection behavior physical fingerprints through the detection disturbance constraint sequences, and generating LDAR compliance verification results of the detection behaviors. According to the invention, by constructing the physical fingerprint of the detection behavior and the disturbance detection constraint sequence and performing traceability verification, the reliability and accuracy of LDAR compliance audit are effectively improved.

Inventors

Yao Duogui
SHENG YINGXIA
DING QIANG
XI HAIJUN
SONG GE
ZHU WENJING
LIU HUAN

Assignees

南京和电科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260414

Claims (9)

1. LDAR compliance auditing method based on data tracing is characterized by comprising the following steps: Acquiring LDAR inspection equipment sampling data, environmental background value monitoring data, equipment space topology data of the detected equipment and path track data of the inspection equipment in the detection process; Extracting gas diffusion disturbance characteristics caused by detection behaviors of the inspection equipment based on environmental background value monitoring data, and constructing detection behavior physical fingerprints representing disturbance effects of the detection behaviors on a gas concentration field; Based on the equipment space topology data and the path track data, analyzing the detection action position and action time sequence of the inspection equipment, and constructing a detection disturbance constraint sequence corresponding to the detection path track; And carrying out traceability verification on the physical fingerprints of the detection behaviors through the detection disturbance constraint sequences to generate LDAR compliance audit results of the detection behaviors.
2. The method for checking the LDAR compliance based on data tracing as set forth in claim 1, wherein the constructing a physical fingerprint of the detection behavior characterizing the disturbance effect of the detection behavior on the gas concentration field includes: acquiring historical environmental background value monitoring data, and carrying out statistical learning on an environmental background value of a target detection area under the influence of detection behaviors of inspection equipment to generate a natural diffusion evolution base value range representing a natural diffusion process of gas concentration; Performing difference analysis on environmental background value monitoring data in LDAR detection processes and a natural diffusion evolution base value range, and identifying environmental response data deviating from the natural diffusion evolution base value range, wherein the environmental response data are environmental background value monitoring data deviating from the natural diffusion evolution base value range; and extracting environmental response characteristics through the environmental response data, and performing characteristic fusion coding on the environmental response characteristics to generate a detection behavior physical fingerprint reflecting the response result of the gas concentration field to the detection behavior.
3. The data trace-source based LDAR compliance verification method as claimed in claim 2, wherein the environmental response characteristics include an environmental response amplitude characteristic, an environmental response gradient change rate characteristic and an environmental response time recovery characteristic, wherein the environmental response amplitude characteristic is an absolute value of a maximum difference between the environmental response data and the natural diffusion evolution base value, the environmental response gradient change rate characteristic is a ratio of an environmental response data difference between adjacent time nodes to a time interval, and the environmental response time recovery characteristic is a time window in which the environmental response data is recovered to the natural diffusion evolution base value range.
4. The method for checking the compliance of LDAR based on data tracing as set forth in claim 1, wherein the constructing a detection perturbation constraint sequence corresponding to the detection path trajectory includes: constructing a three-dimensional space topological structure of the detected equipment based on the equipment space topological data, and extracting a path track of the inspection equipment through the path track data; Mapping the path track of the inspection equipment into a three-dimensional space topological structure of the inspected equipment, extracting the space position of a sealing point of the inspected equipment in the three-dimensional space topological structure and the effective inspection radius of the corresponding inspection equipment, and determining the inspection disturbance constraint of single inspection behavior; And arranging the detection disturbance constraints according to a time sequence to generate a detection disturbance constraint sequence, wherein the detection disturbance constraint sequence is used for limiting a disturbance range and a propagation time sequence of a disturbance effect generated by the detection behavior in the gas concentration field.
5. The data trace source based LDAR compliance verification method of claim 4, wherein said determining a single detection perturbation constraint of a detection behavior comprises: Extracting the corresponding space position of the inspection equipment in the residence time interval by carrying out time sequence analysis on the path track of the inspection equipment; Determining a detection action space position according to the distance relation between the space position of the inspection equipment and the space position of the sealing point, wherein the difference value of the distance between the detection action space position and the space position of the sealing point is smaller than the effective detection radius of the inspection equipment; And taking the residence time interval corresponding to the detection action space position as a detection action time window, and taking the detection action space position and the detection action time window as detection disturbance constraint of single detection action.
6. The data trace source based LDAR compliance verification method of claim 1, wherein the generating LDAR a compliance verification result for a detected behavior comprises: Performing time sequence alignment on the environmental response time recovery characteristic in the physical fingerprint of the detection behavior and the detection action time window in the detection disturbance constraint sequence to obtain a time synchronization deviation value; determining an environmental response space position according to the environmental response amplitude characteristic and the environmental response gradient change rate characteristic, and performing space matching on the environmental response space position and a detection action space position in a detection disturbance constraint sequence to obtain a space position deviation value; When the time synchronization deviation value is smaller than a preset time synchronization deviation threshold value and the space position deviation value is smaller than a preset space deviation threshold value, sampling data of the inspection equipment in the corresponding LDAR detection process are used as trusted data, all the trusted data are counted, and LDAR compliance auditing results are generated.
7. A data trace-based LDAR compliance auditing system for implementing the data trace-based LDAR compliance auditing method of any one of claims 1-6, the system comprising: The data acquisition module is used for acquiring LDAR inspection equipment sampling data, environment background value monitoring data, equipment space topology data of the detected equipment and path track data of the inspection equipment in the detection process; the detection behavior physical fingerprint construction module is used for extracting the gas diffusion disturbance characteristics caused by the detection behavior of the inspection equipment based on the environmental background value monitoring data and constructing detection behavior physical fingerprints representing disturbance effects of the detection behavior on a gas concentration field; the detection disturbance constraint sequence construction module is used for analyzing the detection action position and action time sequence of the inspection equipment based on the equipment space topology data and the path track data and constructing a detection disturbance constraint sequence corresponding to the detection path track; And the traceability verification module is used for carrying out traceability verification on the physical fingerprints of the detection behaviors through the detection disturbance constraint sequences to generate LDAR compliance verification results of the detection behaviors.
8. An electronic device comprising a processor and a memory, wherein the memory stores a computer program for the processor to call, and the electronic device is characterized in that the processor executes the LDAR compliance audit method based on data tracing according to any one of claims 1-6 by calling the computer program stored in the memory.
9. A computer readable storage medium having instructions stored thereon which, when executed on a computer, cause the computer to perform the data trace-based LDAR compliance verification method of any one of claims 1 to 6.

Description

LDAR compliance auditing method and system based on data tracing Technical Field The invention relates to the technical field of industrial environment detection, in particular to LDAR compliance auditing method and system based on data tracing. Background The leak detection and repair (LDAR) technology has been widely used in petrochemical enterprises as a main technology for controlling the leakage of dynamic and static seals of equipment. Traditional LDAR compliance auditing mainly relies on manual spot checks, paper record checks and inspection report integrity checks, and lacks quantitative assessment means for the authenticity and effectiveness of the inspection behavior itself. In the actual detection process, when the inspection equipment approaches to the sealing point and performs the detection operation, the movement, the residence and the detection actions of the inspection equipment can generate observable disturbance on the local gas diffusion state, such as local gas concentration field fluctuation, gas concentration gradient change, environmental response phenomena such as environmental background value recovery process and the like. However, the existing LDAR compliance auditing method generally uses environmental monitoring data only as a concentration determination basis, and does not use environmental response generated by detection behaviors on a gas diffusion state as a basis for verifying detection authenticity, so that effective correlation utilization between the environmental data and the detection behaviors is lacking. Therefore, the prior art has the following problems that (1) LDAR compliance verification is mainly based on recorded data rather than physical environment response, detection behavior authenticity verification is difficult to realize, (2) an analysis mechanism capable of reflecting interaction relation between detection behavior and a gas concentration field is lacking, causal corresponding relation between the detection behavior and environment response cannot be established, and (3) the existing verification method cannot utilize environment background change information to carry out traceable verification on the detection behavior, so that detection behavior authenticity evaluation reliability is insufficient. Disclosure of Invention In order to overcome the defects and shortcomings in the prior art, the invention provides the LDAR compliance auditing method and system based on data tracing, and the reliability and accuracy of LDAR compliance auditing are effectively improved by constructing physical fingerprints of detection behaviors and detecting disturbance constraint sequences and performing tracing verification. In order to achieve the above purpose, the present invention adopts the following technical scheme: in a first aspect, the present invention provides a LDAR compliance auditing method based on data tracing, including: Acquiring LDAR inspection equipment sampling data, environmental background value monitoring data, equipment space topology data of the detected equipment and path track data of the inspection equipment in the detection process; Extracting gas diffusion disturbance characteristics caused by detection behaviors of the inspection equipment based on environmental background value monitoring data, and constructing detection behavior physical fingerprints representing disturbance effects of the detection behaviors on a gas concentration field; Based on the equipment space topology data and the path track data, analyzing the detection action position and action time sequence of the inspection equipment, and constructing a detection disturbance constraint sequence corresponding to the detection path track; And carrying out traceability verification on the physical fingerprints of the detection behaviors through the detection disturbance constraint sequences to generate LDAR compliance audit results of the detection behaviors. Further, the constructing a physical fingerprint of the detection behavior characterizing the disturbance effect of the detection behavior on the gas concentration field includes: acquiring historical environmental background value monitoring data, and carrying out statistical learning on an environmental background value of a target detection area under the influence of detection behaviors of inspection equipment to generate a natural diffusion evolution base value range representing a natural diffusion process of gas concentration; Performing difference analysis on environmental background value monitoring data in LDAR detection processes and a natural diffusion evolution base value range, and identifying environmental response data deviating from the natural diffusion evolution base value range, wherein the environmental response data are environmental background value monitoring data deviating from the natural diffusion evolution base value range; and extracting environmental response characteristics through the env